(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
var pr = require("pushrocks");
pr.beautylog.log("it works");
},{"pushrocks":251}],2:[function(require,module,exports){

},{}],3:[function(require,module,exports){
// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
//
// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
//
// Originally from narwhal.js (http://narwhaljs.org)
// Copyright (c) 2009 Thomas Robinson <280north.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the 'Software'), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

// when used in node, this will actually load the util module we depend on
// versus loading the builtin util module as happens otherwise
// this is a bug in node module loading as far as I am concerned
var util = require('util/');

var pSlice = Array.prototype.slice;
var hasOwn = Object.prototype.hasOwnProperty;

// 1. The assert module provides functions that throw
// AssertionError's when particular conditions are not met. The
// assert module must conform to the following interface.

var assert = module.exports = ok;

// 2. The AssertionError is defined in assert.
// new assert.AssertionError({ message: message,
//                             actual: actual,
//                             expected: expected })

assert.AssertionError = function AssertionError(options) {
  this.name = 'AssertionError';
  this.actual = options.actual;
  this.expected = options.expected;
  this.operator = options.operator;
  if (options.message) {
    this.message = options.message;
    this.generatedMessage = false;
  } else {
    this.message = getMessage(this);
    this.generatedMessage = true;
  }
  var stackStartFunction = options.stackStartFunction || fail;

  if (Error.captureStackTrace) {
    Error.captureStackTrace(this, stackStartFunction);
  }
  else {
    // non v8 browsers so we can have a stacktrace
    var err = new Error();
    if (err.stack) {
      var out = err.stack;

      // try to strip useless frames
      var fn_name = stackStartFunction.name;
      var idx = out.indexOf('\n' + fn_name);
      if (idx >= 0) {
        // once we have located the function frame
        // we need to strip out everything before it (and its line)
        var next_line = out.indexOf('\n', idx + 1);
        out = out.substring(next_line + 1);
      }

      this.stack = out;
    }
  }
};

// assert.AssertionError instanceof Error
util.inherits(assert.AssertionError, Error);

function replacer(key, value) {
  if (util.isUndefined(value)) {
    return '' + value;
  }
  if (util.isNumber(value) && !isFinite(value)) {
    return value.toString();
  }
  if (util.isFunction(value) || util.isRegExp(value)) {
    return value.toString();
  }
  return value;
}

function truncate(s, n) {
  if (util.isString(s)) {
    return s.length < n ? s : s.slice(0, n);
  } else {
    return s;
  }
}

function getMessage(self) {
  return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' +
         self.operator + ' ' +
         truncate(JSON.stringify(self.expected, replacer), 128);
}

// At present only the three keys mentioned above are used and
// understood by the spec. Implementations or sub modules can pass
// other keys to the AssertionError's constructor - they will be
// ignored.

// 3. All of the following functions must throw an AssertionError
// when a corresponding condition is not met, with a message that
// may be undefined if not provided.  All assertion methods provide
// both the actual and expected values to the assertion error for
// display purposes.

function fail(actual, expected, message, operator, stackStartFunction) {
  throw new assert.AssertionError({
    message: message,
    actual: actual,
    expected: expected,
    operator: operator,
    stackStartFunction: stackStartFunction
  });
}

// EXTENSION! allows for well behaved errors defined elsewhere.
assert.fail = fail;

// 4. Pure assertion tests whether a value is truthy, as determined
// by !!guard.
// assert.ok(guard, message_opt);
// This statement is equivalent to assert.equal(true, !!guard,
// message_opt);. To test strictly for the value true, use
// assert.strictEqual(true, guard, message_opt);.

function ok(value, message) {
  if (!value) fail(value, true, message, '==', assert.ok);
}
assert.ok = ok;

// 5. The equality assertion tests shallow, coercive equality with
// ==.
// assert.equal(actual, expected, message_opt);

assert.equal = function equal(actual, expected, message) {
  if (actual != expected) fail(actual, expected, message, '==', assert.equal);
};

// 6. The non-equality assertion tests for whether two objects are not equal
// with != assert.notEqual(actual, expected, message_opt);

assert.notEqual = function notEqual(actual, expected, message) {
  if (actual == expected) {
    fail(actual, expected, message, '!=', assert.notEqual);
  }
};

// 7. The equivalence assertion tests a deep equality relation.
// assert.deepEqual(actual, expected, message_opt);

assert.deepEqual = function deepEqual(actual, expected, message) {
  if (!_deepEqual(actual, expected)) {
    fail(actual, expected, message, 'deepEqual', assert.deepEqual);
  }
};

function _deepEqual(actual, expected) {
  // 7.1. All identical values are equivalent, as determined by ===.
  if (actual === expected) {
    return true;

  } else if (util.isBuffer(actual) && util.isBuffer(expected)) {
    if (actual.length != expected.length) return false;

    for (var i = 0; i < actual.length; i++) {
      if (actual[i] !== expected[i]) return false;
    }

    return true;

  // 7.2. If the expected value is a Date object, the actual value is
  // equivalent if it is also a Date object that refers to the same time.
  } else if (util.isDate(actual) && util.isDate(expected)) {
    return actual.getTime() === expected.getTime();

  // 7.3 If the expected value is a RegExp object, the actual value is
  // equivalent if it is also a RegExp object with the same source and
  // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
  } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
    return actual.source === expected.source &&
           actual.global === expected.global &&
           actual.multiline === expected.multiline &&
           actual.lastIndex === expected.lastIndex &&
           actual.ignoreCase === expected.ignoreCase;

  // 7.4. Other pairs that do not both pass typeof value == 'object',
  // equivalence is determined by ==.
  } else if (!util.isObject(actual) && !util.isObject(expected)) {
    return actual == expected;

  // 7.5 For all other Object pairs, including Array objects, equivalence is
  // determined by having the same number of owned properties (as verified
  // with Object.prototype.hasOwnProperty.call), the same set of keys
  // (although not necessarily the same order), equivalent values for every
  // corresponding key, and an identical 'prototype' property. Note: this
  // accounts for both named and indexed properties on Arrays.
  } else {
    return objEquiv(actual, expected);
  }
}

function isArguments(object) {
  return Object.prototype.toString.call(object) == '[object Arguments]';
}

function objEquiv(a, b) {
  if (util.isNullOrUndefined(a) || util.isNullOrUndefined(b))
    return false;
  // an identical 'prototype' property.
  if (a.prototype !== b.prototype) return false;
  // if one is a primitive, the other must be same
  if (util.isPrimitive(a) || util.isPrimitive(b)) {
    return a === b;
  }
  var aIsArgs = isArguments(a),
      bIsArgs = isArguments(b);
  if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
    return false;
  if (aIsArgs) {
    a = pSlice.call(a);
    b = pSlice.call(b);
    return _deepEqual(a, b);
  }
  var ka = objectKeys(a),
      kb = objectKeys(b),
      key, i;
  // having the same number of owned properties (keys incorporates
  // hasOwnProperty)
  if (ka.length != kb.length)
    return false;
  //the same set of keys (although not necessarily the same order),
  ka.sort();
  kb.sort();
  //~~~cheap key test
  for (i = ka.length - 1; i >= 0; i--) {
    if (ka[i] != kb[i])
      return false;
  }
  //equivalent values for every corresponding key, and
  //~~~possibly expensive deep test
  for (i = ka.length - 1; i >= 0; i--) {
    key = ka[i];
    if (!_deepEqual(a[key], b[key])) return false;
  }
  return true;
}

// 8. The non-equivalence assertion tests for any deep inequality.
// assert.notDeepEqual(actual, expected, message_opt);

assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
  if (_deepEqual(actual, expected)) {
    fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
  }
};

// 9. The strict equality assertion tests strict equality, as determined by ===.
// assert.strictEqual(actual, expected, message_opt);

assert.strictEqual = function strictEqual(actual, expected, message) {
  if (actual !== expected) {
    fail(actual, expected, message, '===', assert.strictEqual);
  }
};

// 10. The strict non-equality assertion tests for strict inequality, as
// determined by !==.  assert.notStrictEqual(actual, expected, message_opt);

assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
  if (actual === expected) {
    fail(actual, expected, message, '!==', assert.notStrictEqual);
  }
};

function expectedException(actual, expected) {
  if (!actual || !expected) {
    return false;
  }

  if (Object.prototype.toString.call(expected) == '[object RegExp]') {
    return expected.test(actual);
  } else if (actual instanceof expected) {
    return true;
  } else if (expected.call({}, actual) === true) {
    return true;
  }

  return false;
}

function _throws(shouldThrow, block, expected, message) {
  var actual;

  if (util.isString(expected)) {
    message = expected;
    expected = null;
  }

  try {
    block();
  } catch (e) {
    actual = e;
  }

  message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
            (message ? ' ' + message : '.');

  if (shouldThrow && !actual) {
    fail(actual, expected, 'Missing expected exception' + message);
  }

  if (!shouldThrow && expectedException(actual, expected)) {
    fail(actual, expected, 'Got unwanted exception' + message);
  }

  if ((shouldThrow && actual && expected &&
      !expectedException(actual, expected)) || (!shouldThrow && actual)) {
    throw actual;
  }
}

// 11. Expected to throw an error:
// assert.throws(block, Error_opt, message_opt);

assert.throws = function(block, /*optional*/error, /*optional*/message) {
  _throws.apply(this, [true].concat(pSlice.call(arguments)));
};

// EXTENSION! This is annoying to write outside this module.
assert.doesNotThrow = function(block, /*optional*/message) {
  _throws.apply(this, [false].concat(pSlice.call(arguments)));
};

assert.ifError = function(err) { if (err) {throw err;}};

var objectKeys = Object.keys || function (obj) {
  var keys = [];
  for (var key in obj) {
    if (hasOwn.call(obj, key)) keys.push(key);
  }
  return keys;
};

},{"util/":247}],4:[function(require,module,exports){
arguments[4][2][0].apply(exports,arguments)
},{"dup":2}],5:[function(require,module,exports){
'use strict';


var TYPED_OK =  (typeof Uint8Array !== 'undefined') &&
                (typeof Uint16Array !== 'undefined') &&
                (typeof Int32Array !== 'undefined');


exports.assign = function (obj /*from1, from2, from3, ...*/) {
  var sources = Array.prototype.slice.call(arguments, 1);
  while (sources.length) {
    var source = sources.shift();
    if (!source) { continue; }

    if (typeof source !== 'object') {
      throw new TypeError(source + 'must be non-object');
    }

    for (var p in source) {
      if (source.hasOwnProperty(p)) {
        obj[p] = source[p];
      }
    }
  }

  return obj;
};


// reduce buffer size, avoiding mem copy
exports.shrinkBuf = function (buf, size) {
  if (buf.length === size) { return buf; }
  if (buf.subarray) { return buf.subarray(0, size); }
  buf.length = size;
  return buf;
};


var fnTyped = {
  arraySet: function (dest, src, src_offs, len, dest_offs) {
    if (src.subarray && dest.subarray) {
      dest.set(src.subarray(src_offs, src_offs+len), dest_offs);
      return;
    }
    // Fallback to ordinary array
    for (var i=0; i<len; i++) {
      dest[dest_offs + i] = src[src_offs + i];
    }
  },
  // Join array of chunks to single array.
  flattenChunks: function(chunks) {
    var i, l, len, pos, chunk, result;

    // calculate data length
    len = 0;
    for (i=0, l=chunks.length; i<l; i++) {
      len += chunks[i].length;
    }

    // join chunks
    result = new Uint8Array(len);
    pos = 0;
    for (i=0, l=chunks.length; i<l; i++) {
      chunk = chunks[i];
      result.set(chunk, pos);
      pos += chunk.length;
    }

    return result;
  }
};

var fnUntyped = {
  arraySet: function (dest, src, src_offs, len, dest_offs) {
    for (var i=0; i<len; i++) {
      dest[dest_offs + i] = src[src_offs + i];
    }
  },
  // Join array of chunks to single array.
  flattenChunks: function(chunks) {
    return [].concat.apply([], chunks);
  }
};


// Enable/Disable typed arrays use, for testing
//
exports.setTyped = function (on) {
  if (on) {
    exports.Buf8  = Uint8Array;
    exports.Buf16 = Uint16Array;
    exports.Buf32 = Int32Array;
    exports.assign(exports, fnTyped);
  } else {
    exports.Buf8  = Array;
    exports.Buf16 = Array;
    exports.Buf32 = Array;
    exports.assign(exports, fnUntyped);
  }
};

exports.setTyped(TYPED_OK);

},{}],6:[function(require,module,exports){
'use strict';

// Note: adler32 takes 12% for level 0 and 2% for level 6.
// It doesn't worth to make additional optimizationa as in original.
// Small size is preferable.

function adler32(adler, buf, len, pos) {
  var s1 = (adler & 0xffff) |0,
      s2 = ((adler >>> 16) & 0xffff) |0,
      n = 0;

  while (len !== 0) {
    // Set limit ~ twice less than 5552, to keep
    // s2 in 31-bits, because we force signed ints.
    // in other case %= will fail.
    n = len > 2000 ? 2000 : len;
    len -= n;

    do {
      s1 = (s1 + buf[pos++]) |0;
      s2 = (s2 + s1) |0;
    } while (--n);

    s1 %= 65521;
    s2 %= 65521;
  }

  return (s1 | (s2 << 16)) |0;
}


module.exports = adler32;

},{}],7:[function(require,module,exports){
module.exports = {

  /* Allowed flush values; see deflate() and inflate() below for details */
  Z_NO_FLUSH:         0,
  Z_PARTIAL_FLUSH:    1,
  Z_SYNC_FLUSH:       2,
  Z_FULL_FLUSH:       3,
  Z_FINISH:           4,
  Z_BLOCK:            5,
  Z_TREES:            6,

  /* Return codes for the compression/decompression functions. Negative values
  * are errors, positive values are used for special but normal events.
  */
  Z_OK:               0,
  Z_STREAM_END:       1,
  Z_NEED_DICT:        2,
  Z_ERRNO:           -1,
  Z_STREAM_ERROR:    -2,
  Z_DATA_ERROR:      -3,
  //Z_MEM_ERROR:     -4,
  Z_BUF_ERROR:       -5,
  //Z_VERSION_ERROR: -6,

  /* compression levels */
  Z_NO_COMPRESSION:         0,
  Z_BEST_SPEED:             1,
  Z_BEST_COMPRESSION:       9,
  Z_DEFAULT_COMPRESSION:   -1,


  Z_FILTERED:               1,
  Z_HUFFMAN_ONLY:           2,
  Z_RLE:                    3,
  Z_FIXED:                  4,
  Z_DEFAULT_STRATEGY:       0,

  /* Possible values of the data_type field (though see inflate()) */
  Z_BINARY:                 0,
  Z_TEXT:                   1,
  //Z_ASCII:                1, // = Z_TEXT (deprecated)
  Z_UNKNOWN:                2,

  /* The deflate compression method */
  Z_DEFLATED:               8
  //Z_NULL:                 null // Use -1 or null inline, depending on var type
};

},{}],8:[function(require,module,exports){
'use strict';

// Note: we can't get significant speed boost here.
// So write code to minimize size - no pregenerated tables
// and array tools dependencies.


// Use ordinary array, since untyped makes no boost here
function makeTable() {
  var c, table = [];

  for (var n =0; n < 256; n++) {
    c = n;
    for (var k =0; k < 8; k++) {
      c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
    }
    table[n] = c;
  }

  return table;
}

// Create table on load. Just 255 signed longs. Not a problem.
var crcTable = makeTable();


function crc32(crc, buf, len, pos) {
  var t = crcTable,
      end = pos + len;

  crc = crc ^ (-1);

  for (var i = pos; i < end; i++) {
    crc = (crc >>> 8) ^ t[(crc ^ buf[i]) & 0xFF];
  }

  return (crc ^ (-1)); // >>> 0;
}


module.exports = crc32;

},{}],9:[function(require,module,exports){
'use strict';

var utils   = require('../utils/common');
var trees   = require('./trees');
var adler32 = require('./adler32');
var crc32   = require('./crc32');
var msg   = require('./messages');

/* Public constants ==========================================================*/
/* ===========================================================================*/


/* Allowed flush values; see deflate() and inflate() below for details */
var Z_NO_FLUSH      = 0;
var Z_PARTIAL_FLUSH = 1;
//var Z_SYNC_FLUSH    = 2;
var Z_FULL_FLUSH    = 3;
var Z_FINISH        = 4;
var Z_BLOCK         = 5;
//var Z_TREES         = 6;


/* Return codes for the compression/decompression functions. Negative values
 * are errors, positive values are used for special but normal events.
 */
var Z_OK            = 0;
var Z_STREAM_END    = 1;
//var Z_NEED_DICT     = 2;
//var Z_ERRNO         = -1;
var Z_STREAM_ERROR  = -2;
var Z_DATA_ERROR    = -3;
//var Z_MEM_ERROR     = -4;
var Z_BUF_ERROR     = -5;
//var Z_VERSION_ERROR = -6;


/* compression levels */
//var Z_NO_COMPRESSION      = 0;
//var Z_BEST_SPEED          = 1;
//var Z_BEST_COMPRESSION    = 9;
var Z_DEFAULT_COMPRESSION = -1;


var Z_FILTERED            = 1;
var Z_HUFFMAN_ONLY        = 2;
var Z_RLE                 = 3;
var Z_FIXED               = 4;
var Z_DEFAULT_STRATEGY    = 0;

/* Possible values of the data_type field (though see inflate()) */
//var Z_BINARY              = 0;
//var Z_TEXT                = 1;
//var Z_ASCII               = 1; // = Z_TEXT
var Z_UNKNOWN             = 2;


/* The deflate compression method */
var Z_DEFLATED  = 8;

/*============================================================================*/


var MAX_MEM_LEVEL = 9;
/* Maximum value for memLevel in deflateInit2 */
var MAX_WBITS = 15;
/* 32K LZ77 window */
var DEF_MEM_LEVEL = 8;


var LENGTH_CODES  = 29;
/* number of length codes, not counting the special END_BLOCK code */
var LITERALS      = 256;
/* number of literal bytes 0..255 */
var L_CODES       = LITERALS + 1 + LENGTH_CODES;
/* number of Literal or Length codes, including the END_BLOCK code */
var D_CODES       = 30;
/* number of distance codes */
var BL_CODES      = 19;
/* number of codes used to transfer the bit lengths */
var HEAP_SIZE     = 2*L_CODES + 1;
/* maximum heap size */
var MAX_BITS  = 15;
/* All codes must not exceed MAX_BITS bits */

var MIN_MATCH = 3;
var MAX_MATCH = 258;
var MIN_LOOKAHEAD = (MAX_MATCH + MIN_MATCH + 1);

var PRESET_DICT = 0x20;

var INIT_STATE = 42;
var EXTRA_STATE = 69;
var NAME_STATE = 73;
var COMMENT_STATE = 91;
var HCRC_STATE = 103;
var BUSY_STATE = 113;
var FINISH_STATE = 666;

var BS_NEED_MORE      = 1; /* block not completed, need more input or more output */
var BS_BLOCK_DONE     = 2; /* block flush performed */
var BS_FINISH_STARTED = 3; /* finish started, need only more output at next deflate */
var BS_FINISH_DONE    = 4; /* finish done, accept no more input or output */

var OS_CODE = 0x03; // Unix :) . Don't detect, use this default.

function err(strm, errorCode) {
  strm.msg = msg[errorCode];
  return errorCode;
}

function rank(f) {
  return ((f) << 1) - ((f) > 4 ? 9 : 0);
}

function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } }


/* =========================================================================
 * Flush as much pending output as possible. All deflate() output goes
 * through this function so some applications may wish to modify it
 * to avoid allocating a large strm->output buffer and copying into it.
 * (See also read_buf()).
 */
function flush_pending(strm) {
  var s = strm.state;

  //_tr_flush_bits(s);
  var len = s.pending;
  if (len > strm.avail_out) {
    len = strm.avail_out;
  }
  if (len === 0) { return; }

  utils.arraySet(strm.output, s.pending_buf, s.pending_out, len, strm.next_out);
  strm.next_out += len;
  s.pending_out += len;
  strm.total_out += len;
  strm.avail_out -= len;
  s.pending -= len;
  if (s.pending === 0) {
    s.pending_out = 0;
  }
}


function flush_block_only (s, last) {
  trees._tr_flush_block(s, (s.block_start >= 0 ? s.block_start : -1), s.strstart - s.block_start, last);
  s.block_start = s.strstart;
  flush_pending(s.strm);
}


function put_byte(s, b) {
  s.pending_buf[s.pending++] = b;
}


/* =========================================================================
 * Put a short in the pending buffer. The 16-bit value is put in MSB order.
 * IN assertion: the stream state is correct and there is enough room in
 * pending_buf.
 */
function putShortMSB(s, b) {
//  put_byte(s, (Byte)(b >> 8));
//  put_byte(s, (Byte)(b & 0xff));
  s.pending_buf[s.pending++] = (b >>> 8) & 0xff;
  s.pending_buf[s.pending++] = b & 0xff;
}


/* ===========================================================================
 * Read a new buffer from the current input stream, update the adler32
 * and total number of bytes read.  All deflate() input goes through
 * this function so some applications may wish to modify it to avoid
 * allocating a large strm->input buffer and copying from it.
 * (See also flush_pending()).
 */
function read_buf(strm, buf, start, size) {
  var len = strm.avail_in;

  if (len > size) { len = size; }
  if (len === 0) { return 0; }

  strm.avail_in -= len;

  utils.arraySet(buf, strm.input, strm.next_in, len, start);
  if (strm.state.wrap === 1) {
    strm.adler = adler32(strm.adler, buf, len, start);
  }

  else if (strm.state.wrap === 2) {
    strm.adler = crc32(strm.adler, buf, len, start);
  }

  strm.next_in += len;
  strm.total_in += len;

  return len;
}


/* ===========================================================================
 * Set match_start to the longest match starting at the given string and
 * return its length. Matches shorter or equal to prev_length are discarded,
 * in which case the result is equal to prev_length and match_start is
 * garbage.
 * IN assertions: cur_match is the head of the hash chain for the current
 *   string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
 * OUT assertion: the match length is not greater than s->lookahead.
 */
function longest_match(s, cur_match) {
  var chain_length = s.max_chain_length;      /* max hash chain length */
  var scan = s.strstart; /* current string */
  var match;                       /* matched string */
  var len;                           /* length of current match */
  var best_len = s.prev_length;              /* best match length so far */
  var nice_match = s.nice_match;             /* stop if match long enough */
  var limit = (s.strstart > (s.w_size - MIN_LOOKAHEAD)) ?
      s.strstart - (s.w_size - MIN_LOOKAHEAD) : 0/*NIL*/;

  var _win = s.window; // shortcut

  var wmask = s.w_mask;
  var prev  = s.prev;

  /* Stop when cur_match becomes <= limit. To simplify the code,
   * we prevent matches with the string of window index 0.
   */

  var strend = s.strstart + MAX_MATCH;
  var scan_end1  = _win[scan + best_len - 1];
  var scan_end   = _win[scan + best_len];

  /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
   * It is easy to get rid of this optimization if necessary.
   */
  // Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");

  /* Do not waste too much time if we already have a good match: */
  if (s.prev_length >= s.good_match) {
    chain_length >>= 2;
  }
  /* Do not look for matches beyond the end of the input. This is necessary
   * to make deflate deterministic.
   */
  if (nice_match > s.lookahead) { nice_match = s.lookahead; }

  // Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");

  do {
    // Assert(cur_match < s->strstart, "no future");
    match = cur_match;

    /* Skip to next match if the match length cannot increase
     * or if the match length is less than 2.  Note that the checks below
     * for insufficient lookahead only occur occasionally for performance
     * reasons.  Therefore uninitialized memory will be accessed, and
     * conditional jumps will be made that depend on those values.
     * However the length of the match is limited to the lookahead, so
     * the output of deflate is not affected by the uninitialized values.
     */

    if (_win[match + best_len]     !== scan_end  ||
        _win[match + best_len - 1] !== scan_end1 ||
        _win[match]                !== _win[scan] ||
        _win[++match]              !== _win[scan + 1]) {
      continue;
    }

    /* The check at best_len-1 can be removed because it will be made
     * again later. (This heuristic is not always a win.)
     * It is not necessary to compare scan[2] and match[2] since they
     * are always equal when the other bytes match, given that
     * the hash keys are equal and that HASH_BITS >= 8.
     */
    scan += 2;
    match++;
    // Assert(*scan == *match, "match[2]?");

    /* We check for insufficient lookahead only every 8th comparison;
     * the 256th check will be made at strstart+258.
     */
    do {
      /*jshint noempty:false*/
    } while (_win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
             _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
             _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
             _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
             scan < strend);

    // Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");

    len = MAX_MATCH - (strend - scan);
    scan = strend - MAX_MATCH;

    if (len > best_len) {
      s.match_start = cur_match;
      best_len = len;
      if (len >= nice_match) {
        break;
      }
      scan_end1  = _win[scan + best_len - 1];
      scan_end   = _win[scan + best_len];
    }
  } while ((cur_match = prev[cur_match & wmask]) > limit && --chain_length !== 0);

  if (best_len <= s.lookahead) {
    return best_len;
  }
  return s.lookahead;
}


/* ===========================================================================
 * Fill the window when the lookahead becomes insufficient.
 * Updates strstart and lookahead.
 *
 * IN assertion: lookahead < MIN_LOOKAHEAD
 * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD
 *    At least one byte has been read, or avail_in == 0; reads are
 *    performed for at least two bytes (required for the zip translate_eol
 *    option -- not supported here).
 */
function fill_window(s) {
  var _w_size = s.w_size;
  var p, n, m, more, str;

  //Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead");

  do {
    more = s.window_size - s.lookahead - s.strstart;

    // JS ints have 32 bit, block below not needed
    /* Deal with !@#$% 64K limit: */
    //if (sizeof(int) <= 2) {
    //    if (more == 0 && s->strstart == 0 && s->lookahead == 0) {
    //        more = wsize;
    //
    //  } else if (more == (unsigned)(-1)) {
    //        /* Very unlikely, but possible on 16 bit machine if
    //         * strstart == 0 && lookahead == 1 (input done a byte at time)
    //         */
    //        more--;
    //    }
    //}


    /* If the window is almost full and there is insufficient lookahead,
     * move the upper half to the lower one to make room in the upper half.
     */
    if (s.strstart >= _w_size + (_w_size - MIN_LOOKAHEAD)) {

      utils.arraySet(s.window, s.window, _w_size, _w_size, 0);
      s.match_start -= _w_size;
      s.strstart -= _w_size;
      /* we now have strstart >= MAX_DIST */
      s.block_start -= _w_size;

      /* Slide the hash table (could be avoided with 32 bit values
       at the expense of memory usage). We slide even when level == 0
       to keep the hash table consistent if we switch back to level > 0
       later. (Using level 0 permanently is not an optimal usage of
       zlib, so we don't care about this pathological case.)
       */

      n = s.hash_size;
      p = n;
      do {
        m = s.head[--p];
        s.head[p] = (m >= _w_size ? m - _w_size : 0);
      } while (--n);

      n = _w_size;
      p = n;
      do {
        m = s.prev[--p];
        s.prev[p] = (m >= _w_size ? m - _w_size : 0);
        /* If n is not on any hash chain, prev[n] is garbage but
         * its value will never be used.
         */
      } while (--n);

      more += _w_size;
    }
    if (s.strm.avail_in === 0) {
      break;
    }

    /* If there was no sliding:
     *    strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
     *    more == window_size - lookahead - strstart
     * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1)
     * => more >= window_size - 2*WSIZE + 2
     * In the BIG_MEM or MMAP case (not yet supported),
     *   window_size == input_size + MIN_LOOKAHEAD  &&
     *   strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD.
     * Otherwise, window_size == 2*WSIZE so more >= 2.
     * If there was sliding, more >= WSIZE. So in all cases, more >= 2.
     */
    //Assert(more >= 2, "more < 2");
    n = read_buf(s.strm, s.window, s.strstart + s.lookahead, more);
    s.lookahead += n;

    /* Initialize the hash value now that we have some input: */
    if (s.lookahead + s.insert >= MIN_MATCH) {
      str = s.strstart - s.insert;
      s.ins_h = s.window[str];

      /* UPDATE_HASH(s, s->ins_h, s->window[str + 1]); */
      s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + 1]) & s.hash_mask;
//#if MIN_MATCH != 3
//        Call update_hash() MIN_MATCH-3 more times
//#endif
      while (s.insert) {
        /* UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); */
        s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH-1]) & s.hash_mask;

        s.prev[str & s.w_mask] = s.head[s.ins_h];
        s.head[s.ins_h] = str;
        str++;
        s.insert--;
        if (s.lookahead + s.insert < MIN_MATCH) {
          break;
        }
      }
    }
    /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
     * but this is not important since only literal bytes will be emitted.
     */

  } while (s.lookahead < MIN_LOOKAHEAD && s.strm.avail_in !== 0);

  /* If the WIN_INIT bytes after the end of the current data have never been
   * written, then zero those bytes in order to avoid memory check reports of
   * the use of uninitialized (or uninitialised as Julian writes) bytes by
   * the longest match routines.  Update the high water mark for the next
   * time through here.  WIN_INIT is set to MAX_MATCH since the longest match
   * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead.
   */
//  if (s.high_water < s.window_size) {
//    var curr = s.strstart + s.lookahead;
//    var init = 0;
//
//    if (s.high_water < curr) {
//      /* Previous high water mark below current data -- zero WIN_INIT
//       * bytes or up to end of window, whichever is less.
//       */
//      init = s.window_size - curr;
//      if (init > WIN_INIT)
//        init = WIN_INIT;
//      zmemzero(s->window + curr, (unsigned)init);
//      s->high_water = curr + init;
//    }
//    else if (s->high_water < (ulg)curr + WIN_INIT) {
//      /* High water mark at or above current data, but below current data
//       * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up
//       * to end of window, whichever is less.
//       */
//      init = (ulg)curr + WIN_INIT - s->high_water;
//      if (init > s->window_size - s->high_water)
//        init = s->window_size - s->high_water;
//      zmemzero(s->window + s->high_water, (unsigned)init);
//      s->high_water += init;
//    }
//  }
//
//  Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
//    "not enough room for search");
}

/* ===========================================================================
 * Copy without compression as much as possible from the input stream, return
 * the current block state.
 * This function does not insert new strings in the dictionary since
 * uncompressible data is probably not useful. This function is used
 * only for the level=0 compression option.
 * NOTE: this function should be optimized to avoid extra copying from
 * window to pending_buf.
 */
function deflate_stored(s, flush) {
  /* Stored blocks are limited to 0xffff bytes, pending_buf is limited
   * to pending_buf_size, and each stored block has a 5 byte header:
   */
  var max_block_size = 0xffff;

  if (max_block_size > s.pending_buf_size - 5) {
    max_block_size = s.pending_buf_size - 5;
  }

  /* Copy as much as possible from input to output: */
  for (;;) {
    /* Fill the window as much as possible: */
    if (s.lookahead <= 1) {

      //Assert(s->strstart < s->w_size+MAX_DIST(s) ||
      //  s->block_start >= (long)s->w_size, "slide too late");
//      if (!(s.strstart < s.w_size + (s.w_size - MIN_LOOKAHEAD) ||
//        s.block_start >= s.w_size)) {
//        throw  new Error("slide too late");
//      }

      fill_window(s);
      if (s.lookahead === 0 && flush === Z_NO_FLUSH) {
        return BS_NEED_MORE;
      }

      if (s.lookahead === 0) {
        break;
      }
      /* flush the current block */
    }
    //Assert(s->block_start >= 0L, "block gone");
//    if (s.block_start < 0) throw new Error("block gone");

    s.strstart += s.lookahead;
    s.lookahead = 0;

    /* Emit a stored block if pending_buf will be full: */
    var max_start = s.block_start + max_block_size;

    if (s.strstart === 0 || s.strstart >= max_start) {
      /* strstart == 0 is possible when wraparound on 16-bit machine */
      s.lookahead = s.strstart - max_start;
      s.strstart = max_start;
      /*** FLUSH_BLOCK(s, 0); ***/
      flush_block_only(s, false);
      if (s.strm.avail_out === 0) {
        return BS_NEED_MORE;
      }
      /***/


    }
    /* Flush if we may have to slide, otherwise block_start may become
     * negative and the data will be gone:
     */
    if (s.strstart - s.block_start >= (s.w_size - MIN_LOOKAHEAD)) {
      /*** FLUSH_BLOCK(s, 0); ***/
      flush_block_only(s, false);
      if (s.strm.avail_out === 0) {
        return BS_NEED_MORE;
      }
      /***/
    }
  }

  s.insert = 0;

  if (flush === Z_FINISH) {
    /*** FLUSH_BLOCK(s, 1); ***/
    flush_block_only(s, true);
    if (s.strm.avail_out === 0) {
      return BS_FINISH_STARTED;
    }
    /***/
    return BS_FINISH_DONE;
  }

  if (s.strstart > s.block_start) {
    /*** FLUSH_BLOCK(s, 0); ***/
    flush_block_only(s, false);
    if (s.strm.avail_out === 0) {
      return BS_NEED_MORE;
    }
    /***/
  }

  return BS_NEED_MORE;
}

/* ===========================================================================
 * Compress as much as possible from the input stream, return the current
 * block state.
 * This function does not perform lazy evaluation of matches and inserts
 * new strings in the dictionary only for unmatched strings or for short
 * matches. It is used only for the fast compression options.
 */
function deflate_fast(s, flush) {
  var hash_head;        /* head of the hash chain */
  var bflush;           /* set if current block must be flushed */

  for (;;) {
    /* Make sure that we always have enough lookahead, except
     * at the end of the input file. We need MAX_MATCH bytes
     * for the next match, plus MIN_MATCH bytes to insert the
     * string following the next match.
     */
    if (s.lookahead < MIN_LOOKAHEAD) {
      fill_window(s);
      if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) {
        return BS_NEED_MORE;
      }
      if (s.lookahead === 0) {
        break; /* flush the current block */
      }
    }

    /* Insert the string window[strstart .. strstart+2] in the
     * dictionary, and set hash_head to the head of the hash chain:
     */
    hash_head = 0/*NIL*/;
    if (s.lookahead >= MIN_MATCH) {
      /*** INSERT_STRING(s, s.strstart, hash_head); ***/
      s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
      hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
      s.head[s.ins_h] = s.strstart;
      /***/
    }

    /* Find the longest match, discarding those <= prev_length.
     * At this point we have always match_length < MIN_MATCH
     */
    if (hash_head !== 0/*NIL*/ && ((s.strstart - hash_head) <= (s.w_size - MIN_LOOKAHEAD))) {
      /* To simplify the code, we prevent matches with the string
       * of window index 0 (in particular we have to avoid a match
       * of the string with itself at the start of the input file).
       */
      s.match_length = longest_match(s, hash_head);
      /* longest_match() sets match_start */
    }
    if (s.match_length >= MIN_MATCH) {
      // check_match(s, s.strstart, s.match_start, s.match_length); // for debug only

      /*** _tr_tally_dist(s, s.strstart - s.match_start,
                     s.match_length - MIN_MATCH, bflush); ***/
      bflush = trees._tr_tally(s, s.strstart - s.match_start, s.match_length - MIN_MATCH);

      s.lookahead -= s.match_length;

      /* Insert new strings in the hash table only if the match length
       * is not too large. This saves time but degrades compression.
       */
      if (s.match_length <= s.max_lazy_match/*max_insert_length*/ && s.lookahead >= MIN_MATCH) {
        s.match_length--; /* string at strstart already in table */
        do {
          s.strstart++;
          /*** INSERT_STRING(s, s.strstart, hash_head); ***/
          s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
          hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
          s.head[s.ins_h] = s.strstart;
          /***/
          /* strstart never exceeds WSIZE-MAX_MATCH, so there are
           * always MIN_MATCH bytes ahead.
           */
        } while (--s.match_length !== 0);
        s.strstart++;
      } else
      {
        s.strstart += s.match_length;
        s.match_length = 0;
        s.ins_h = s.window[s.strstart];
        /* UPDATE_HASH(s, s.ins_h, s.window[s.strstart+1]); */
        s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + 1]) & s.hash_mask;

//#if MIN_MATCH != 3
//                Call UPDATE_HASH() MIN_MATCH-3 more times
//#endif
        /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not
         * matter since it will be recomputed at next deflate call.
         */
      }
    } else {
      /* No match, output a literal byte */
      //Tracevv((stderr,"%c", s.window[s.strstart]));
      /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/
      bflush = trees._tr_tally(s, 0, s.window[s.strstart]);

      s.lookahead--;
      s.strstart++;
    }
    if (bflush) {
      /*** FLUSH_BLOCK(s, 0); ***/
      flush_block_only(s, false);
      if (s.strm.avail_out === 0) {
        return BS_NEED_MORE;
      }
      /***/
    }
  }
  s.insert = ((s.strstart < (MIN_MATCH-1)) ? s.strstart : MIN_MATCH-1);
  if (flush === Z_FINISH) {
    /*** FLUSH_BLOCK(s, 1); ***/
    flush_block_only(s, true);
    if (s.strm.avail_out === 0) {
      return BS_FINISH_STARTED;
    }
    /***/
    return BS_FINISH_DONE;
  }
  if (s.last_lit) {
    /*** FLUSH_BLOCK(s, 0); ***/
    flush_block_only(s, false);
    if (s.strm.avail_out === 0) {
      return BS_NEED_MORE;
    }
    /***/
  }
  return BS_BLOCK_DONE;
}

/* ===========================================================================
 * Same as above, but achieves better compression. We use a lazy
 * evaluation for matches: a match is finally adopted only if there is
 * no better match at the next window position.
 */
function deflate_slow(s, flush) {
  var hash_head;          /* head of hash chain */
  var bflush;              /* set if current block must be flushed */

  var max_insert;

  /* Process the input block. */
  for (;;) {
    /* Make sure that we always have enough lookahead, except
     * at the end of the input file. We need MAX_MATCH bytes
     * for the next match, plus MIN_MATCH bytes to insert the
     * string following the next match.
     */
    if (s.lookahead < MIN_LOOKAHEAD) {
      fill_window(s);
      if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) {
        return BS_NEED_MORE;
      }
      if (s.lookahead === 0) { break; } /* flush the current block */
    }

    /* Insert the string window[strstart .. strstart+2] in the
     * dictionary, and set hash_head to the head of the hash chain:
     */
    hash_head = 0/*NIL*/;
    if (s.lookahead >= MIN_MATCH) {
      /*** INSERT_STRING(s, s.strstart, hash_head); ***/
      s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
      hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
      s.head[s.ins_h] = s.strstart;
      /***/
    }

    /* Find the longest match, discarding those <= prev_length.
     */
    s.prev_length = s.match_length;
    s.prev_match = s.match_start;
    s.match_length = MIN_MATCH-1;

    if (hash_head !== 0/*NIL*/ && s.prev_length < s.max_lazy_match &&
        s.strstart - hash_head <= (s.w_size-MIN_LOOKAHEAD)/*MAX_DIST(s)*/) {
      /* To simplify the code, we prevent matches with the string
       * of window index 0 (in particular we have to avoid a match
       * of the string with itself at the start of the input file).
       */
      s.match_length = longest_match(s, hash_head);
      /* longest_match() sets match_start */

      if (s.match_length <= 5 &&
         (s.strategy === Z_FILTERED || (s.match_length === MIN_MATCH && s.strstart - s.match_start > 4096/*TOO_FAR*/))) {

        /* If prev_match is also MIN_MATCH, match_start is garbage
         * but we will ignore the current match anyway.
         */
        s.match_length = MIN_MATCH-1;
      }
    }
    /* If there was a match at the previous step and the current
     * match is not better, output the previous match:
     */
    if (s.prev_length >= MIN_MATCH && s.match_length <= s.prev_length) {
      max_insert = s.strstart + s.lookahead - MIN_MATCH;
      /* Do not insert strings in hash table beyond this. */

      //check_match(s, s.strstart-1, s.prev_match, s.prev_length);

      /***_tr_tally_dist(s, s.strstart - 1 - s.prev_match,
                     s.prev_length - MIN_MATCH, bflush);***/
      bflush = trees._tr_tally(s, s.strstart - 1- s.prev_match, s.prev_length - MIN_MATCH);
      /* Insert in hash table all strings up to the end of the match.
       * strstart-1 and strstart are already inserted. If there is not
       * enough lookahead, the last two strings are not inserted in
       * the hash table.
       */
      s.lookahead -= s.prev_length-1;
      s.prev_length -= 2;
      do {
        if (++s.strstart <= max_insert) {
          /*** INSERT_STRING(s, s.strstart, hash_head); ***/
          s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
          hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
          s.head[s.ins_h] = s.strstart;
          /***/
        }
      } while (--s.prev_length !== 0);
      s.match_available = 0;
      s.match_length = MIN_MATCH-1;
      s.strstart++;

      if (bflush) {
        /*** FLUSH_BLOCK(s, 0); ***/
        flush_block_only(s, false);
        if (s.strm.avail_out === 0) {
          return BS_NEED_MORE;
        }
        /***/
      }

    } else if (s.match_available) {
      /* If there was no match at the previous position, output a
       * single literal. If there was a match but the current match
       * is longer, truncate the previous match to a single literal.
       */
      //Tracevv((stderr,"%c", s->window[s->strstart-1]));
      /*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/
      bflush = trees._tr_tally(s, 0, s.window[s.strstart-1]);

      if (bflush) {
        /*** FLUSH_BLOCK_ONLY(s, 0) ***/
        flush_block_only(s, false);
        /***/
      }
      s.strstart++;
      s.lookahead--;
      if (s.strm.avail_out === 0) {
        return BS_NEED_MORE;
      }
    } else {
      /* There is no previous match to compare with, wait for
       * the next step to decide.
       */
      s.match_available = 1;
      s.strstart++;
      s.lookahead--;
    }
  }
  //Assert (flush != Z_NO_FLUSH, "no flush?");
  if (s.match_available) {
    //Tracevv((stderr,"%c", s->window[s->strstart-1]));
    /*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/
    bflush = trees._tr_tally(s, 0, s.window[s.strstart-1]);

    s.match_available = 0;
  }
  s.insert = s.strstart < MIN_MATCH-1 ? s.strstart : MIN_MATCH-1;
  if (flush === Z_FINISH) {
    /*** FLUSH_BLOCK(s, 1); ***/
    flush_block_only(s, true);
    if (s.strm.avail_out === 0) {
      return BS_FINISH_STARTED;
    }
    /***/
    return BS_FINISH_DONE;
  }
  if (s.last_lit) {
    /*** FLUSH_BLOCK(s, 0); ***/
    flush_block_only(s, false);
    if (s.strm.avail_out === 0) {
      return BS_NEED_MORE;
    }
    /***/
  }

  return BS_BLOCK_DONE;
}


/* ===========================================================================
 * For Z_RLE, simply look for runs of bytes, generate matches only of distance
 * one.  Do not maintain a hash table.  (It will be regenerated if this run of
 * deflate switches away from Z_RLE.)
 */
function deflate_rle(s, flush) {
  var bflush;            /* set if current block must be flushed */
  var prev;              /* byte at distance one to match */
  var scan, strend;      /* scan goes up to strend for length of run */

  var _win = s.window;

  for (;;) {
    /* Make sure that we always have enough lookahead, except
     * at the end of the input file. We need MAX_MATCH bytes
     * for the longest run, plus one for the unrolled loop.
     */
    if (s.lookahead <= MAX_MATCH) {
      fill_window(s);
      if (s.lookahead <= MAX_MATCH && flush === Z_NO_FLUSH) {
        return BS_NEED_MORE;
      }
      if (s.lookahead === 0) { break; } /* flush the current block */
    }

    /* See how many times the previous byte repeats */
    s.match_length = 0;
    if (s.lookahead >= MIN_MATCH && s.strstart > 0) {
      scan = s.strstart - 1;
      prev = _win[scan];
      if (prev === _win[++scan] && prev === _win[++scan] && prev === _win[++scan]) {
        strend = s.strstart + MAX_MATCH;
        do {
          /*jshint noempty:false*/
        } while (prev === _win[++scan] && prev === _win[++scan] &&
                 prev === _win[++scan] && prev === _win[++scan] &&
                 prev === _win[++scan] && prev === _win[++scan] &&
                 prev === _win[++scan] && prev === _win[++scan] &&
                 scan < strend);
        s.match_length = MAX_MATCH - (strend - scan);
        if (s.match_length > s.lookahead) {
          s.match_length = s.lookahead;
        }
      }
      //Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan");
    }

    /* Emit match if have run of MIN_MATCH or longer, else emit literal */
    if (s.match_length >= MIN_MATCH) {
      //check_match(s, s.strstart, s.strstart - 1, s.match_length);

      /*** _tr_tally_dist(s, 1, s.match_length - MIN_MATCH, bflush); ***/
      bflush = trees._tr_tally(s, 1, s.match_length - MIN_MATCH);

      s.lookahead -= s.match_length;
      s.strstart += s.match_length;
      s.match_length = 0;
    } else {
      /* No match, output a literal byte */
      //Tracevv((stderr,"%c", s->window[s->strstart]));
      /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/
      bflush = trees._tr_tally(s, 0, s.window[s.strstart]);

      s.lookahead--;
      s.strstart++;
    }
    if (bflush) {
      /*** FLUSH_BLOCK(s, 0); ***/
      flush_block_only(s, false);
      if (s.strm.avail_out === 0) {
        return BS_NEED_MORE;
      }
      /***/
    }
  }
  s.insert = 0;
  if (flush === Z_FINISH) {
    /*** FLUSH_BLOCK(s, 1); ***/
    flush_block_only(s, true);
    if (s.strm.avail_out === 0) {
      return BS_FINISH_STARTED;
    }
    /***/
    return BS_FINISH_DONE;
  }
  if (s.last_lit) {
    /*** FLUSH_BLOCK(s, 0); ***/
    flush_block_only(s, false);
    if (s.strm.avail_out === 0) {
      return BS_NEED_MORE;
    }
    /***/
  }
  return BS_BLOCK_DONE;
}

/* ===========================================================================
 * For Z_HUFFMAN_ONLY, do not look for matches.  Do not maintain a hash table.
 * (It will be regenerated if this run of deflate switches away from Huffman.)
 */
function deflate_huff(s, flush) {
  var bflush;             /* set if current block must be flushed */

  for (;;) {
    /* Make sure that we have a literal to write. */
    if (s.lookahead === 0) {
      fill_window(s);
      if (s.lookahead === 0) {
        if (flush === Z_NO_FLUSH) {
          return BS_NEED_MORE;
        }
        break;      /* flush the current block */
      }
    }

    /* Output a literal byte */
    s.match_length = 0;
    //Tracevv((stderr,"%c", s->window[s->strstart]));
    /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/
    bflush = trees._tr_tally(s, 0, s.window[s.strstart]);
    s.lookahead--;
    s.strstart++;
    if (bflush) {
      /*** FLUSH_BLOCK(s, 0); ***/
      flush_block_only(s, false);
      if (s.strm.avail_out === 0) {
        return BS_NEED_MORE;
      }
      /***/
    }
  }
  s.insert = 0;
  if (flush === Z_FINISH) {
    /*** FLUSH_BLOCK(s, 1); ***/
    flush_block_only(s, true);
    if (s.strm.avail_out === 0) {
      return BS_FINISH_STARTED;
    }
    /***/
    return BS_FINISH_DONE;
  }
  if (s.last_lit) {
    /*** FLUSH_BLOCK(s, 0); ***/
    flush_block_only(s, false);
    if (s.strm.avail_out === 0) {
      return BS_NEED_MORE;
    }
    /***/
  }
  return BS_BLOCK_DONE;
}

/* Values for max_lazy_match, good_match and max_chain_length, depending on
 * the desired pack level (0..9). The values given below have been tuned to
 * exclude worst case performance for pathological files. Better values may be
 * found for specific files.
 */
var Config = function (good_length, max_lazy, nice_length, max_chain, func) {
  this.good_length = good_length;
  this.max_lazy = max_lazy;
  this.nice_length = nice_length;
  this.max_chain = max_chain;
  this.func = func;
};

var configuration_table;

configuration_table = [
  /*      good lazy nice chain */
  new Config(0, 0, 0, 0, deflate_stored),          /* 0 store only */
  new Config(4, 4, 8, 4, deflate_fast),            /* 1 max speed, no lazy matches */
  new Config(4, 5, 16, 8, deflate_fast),           /* 2 */
  new Config(4, 6, 32, 32, deflate_fast),          /* 3 */

  new Config(4, 4, 16, 16, deflate_slow),          /* 4 lazy matches */
  new Config(8, 16, 32, 32, deflate_slow),         /* 5 */
  new Config(8, 16, 128, 128, deflate_slow),       /* 6 */
  new Config(8, 32, 128, 256, deflate_slow),       /* 7 */
  new Config(32, 128, 258, 1024, deflate_slow),    /* 8 */
  new Config(32, 258, 258, 4096, deflate_slow)     /* 9 max compression */
];


/* ===========================================================================
 * Initialize the "longest match" routines for a new zlib stream
 */
function lm_init(s) {
  s.window_size = 2 * s.w_size;

  /*** CLEAR_HASH(s); ***/
  zero(s.head); // Fill with NIL (= 0);

  /* Set the default configuration parameters:
   */
  s.max_lazy_match = configuration_table[s.level].max_lazy;
  s.good_match = configuration_table[s.level].good_length;
  s.nice_match = configuration_table[s.level].nice_length;
  s.max_chain_length = configuration_table[s.level].max_chain;

  s.strstart = 0;
  s.block_start = 0;
  s.lookahead = 0;
  s.insert = 0;
  s.match_length = s.prev_length = MIN_MATCH - 1;
  s.match_available = 0;
  s.ins_h = 0;
}


function DeflateState() {
  this.strm = null;            /* pointer back to this zlib stream */
  this.status = 0;            /* as the name implies */
  this.pending_buf = null;      /* output still pending */
  this.pending_buf_size = 0;  /* size of pending_buf */
  this.pending_out = 0;       /* next pending byte to output to the stream */
  this.pending = 0;           /* nb of bytes in the pending buffer */
  this.wrap = 0;              /* bit 0 true for zlib, bit 1 true for gzip */
  this.gzhead = null;         /* gzip header information to write */
  this.gzindex = 0;           /* where in extra, name, or comment */
  this.method = Z_DEFLATED; /* can only be DEFLATED */
  this.last_flush = -1;   /* value of flush param for previous deflate call */

  this.w_size = 0;  /* LZ77 window size (32K by default) */
  this.w_bits = 0;  /* log2(w_size)  (8..16) */
  this.w_mask = 0;  /* w_size - 1 */

  this.window = null;
  /* Sliding window. Input bytes are read into the second half of the window,
   * and move to the first half later to keep a dictionary of at least wSize
   * bytes. With this organization, matches are limited to a distance of
   * wSize-MAX_MATCH bytes, but this ensures that IO is always
   * performed with a length multiple of the block size.
   */

  this.window_size = 0;
  /* Actual size of window: 2*wSize, except when the user input buffer
   * is directly used as sliding window.
   */

  this.prev = null;
  /* Link to older string with same hash index. To limit the size of this
   * array to 64K, this link is maintained only for the last 32K strings.
   * An index in this array is thus a window index modulo 32K.
   */

  this.head = null;   /* Heads of the hash chains or NIL. */

  this.ins_h = 0;       /* hash index of string to be inserted */
  this.hash_size = 0;   /* number of elements in hash table */
  this.hash_bits = 0;   /* log2(hash_size) */
  this.hash_mask = 0;   /* hash_size-1 */

  this.hash_shift = 0;
  /* Number of bits by which ins_h must be shifted at each input
   * step. It must be such that after MIN_MATCH steps, the oldest
   * byte no longer takes part in the hash key, that is:
   *   hash_shift * MIN_MATCH >= hash_bits
   */

  this.block_start = 0;
  /* Window position at the beginning of the current output block. Gets
   * negative when the window is moved backwards.
   */

  this.match_length = 0;      /* length of best match */
  this.prev_match = 0;        /* previous match */
  this.match_available = 0;   /* set if previous match exists */
  this.strstart = 0;          /* start of string to insert */
  this.match_start = 0;       /* start of matching string */
  this.lookahead = 0;         /* number of valid bytes ahead in window */

  this.prev_length = 0;
  /* Length of the best match at previous step. Matches not greater than this
   * are discarded. This is used in the lazy match evaluation.
   */

  this.max_chain_length = 0;
  /* To speed up deflation, hash chains are never searched beyond this
   * length.  A higher limit improves compression ratio but degrades the
   * speed.
   */

  this.max_lazy_match = 0;
  /* Attempt to find a better match only when the current match is strictly
   * smaller than this value. This mechanism is used only for compression
   * levels >= 4.
   */
  // That's alias to max_lazy_match, don't use directly
  //this.max_insert_length = 0;
  /* Insert new strings in the hash table only if the match length is not
   * greater than this length. This saves time but degrades compression.
   * max_insert_length is used only for compression levels <= 3.
   */

  this.level = 0;     /* compression level (1..9) */
  this.strategy = 0;  /* favor or force Huffman coding*/

  this.good_match = 0;
  /* Use a faster search when the previous match is longer than this */

  this.nice_match = 0; /* Stop searching when current match exceeds this */

              /* used by trees.c: */

  /* Didn't use ct_data typedef below to suppress compiler warning */

  // struct ct_data_s dyn_ltree[HEAP_SIZE];   /* literal and length tree */
  // struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
  // struct ct_data_s bl_tree[2*BL_CODES+1];  /* Huffman tree for bit lengths */

  // Use flat array of DOUBLE size, with interleaved fata,
  // because JS does not support effective
  this.dyn_ltree  = new utils.Buf16(HEAP_SIZE * 2);
  this.dyn_dtree  = new utils.Buf16((2*D_CODES+1) * 2);
  this.bl_tree    = new utils.Buf16((2*BL_CODES+1) * 2);
  zero(this.dyn_ltree);
  zero(this.dyn_dtree);
  zero(this.bl_tree);

  this.l_desc   = null;         /* desc. for literal tree */
  this.d_desc   = null;         /* desc. for distance tree */
  this.bl_desc  = null;         /* desc. for bit length tree */

  //ush bl_count[MAX_BITS+1];
  this.bl_count = new utils.Buf16(MAX_BITS+1);
  /* number of codes at each bit length for an optimal tree */

  //int heap[2*L_CODES+1];      /* heap used to build the Huffman trees */
  this.heap = new utils.Buf16(2*L_CODES+1);  /* heap used to build the Huffman trees */
  zero(this.heap);

  this.heap_len = 0;               /* number of elements in the heap */
  this.heap_max = 0;               /* element of largest frequency */
  /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
   * The same heap array is used to build all trees.
   */

  this.depth = new utils.Buf16(2*L_CODES+1); //uch depth[2*L_CODES+1];
  zero(this.depth);
  /* Depth of each subtree used as tie breaker for trees of equal frequency
   */

  this.l_buf = 0;          /* buffer index for literals or lengths */

  this.lit_bufsize = 0;
  /* Size of match buffer for literals/lengths.  There are 4 reasons for
   * limiting lit_bufsize to 64K:
   *   - frequencies can be kept in 16 bit counters
   *   - if compression is not successful for the first block, all input
   *     data is still in the window so we can still emit a stored block even
   *     when input comes from standard input.  (This can also be done for
   *     all blocks if lit_bufsize is not greater than 32K.)
   *   - if compression is not successful for a file smaller than 64K, we can
   *     even emit a stored file instead of a stored block (saving 5 bytes).
   *     This is applicable only for zip (not gzip or zlib).
   *   - creating new Huffman trees less frequently may not provide fast
   *     adaptation to changes in the input data statistics. (Take for
   *     example a binary file with poorly compressible code followed by
   *     a highly compressible string table.) Smaller buffer sizes give
   *     fast adaptation but have of course the overhead of transmitting
   *     trees more frequently.
   *   - I can't count above 4
   */

  this.last_lit = 0;      /* running index in l_buf */

  this.d_buf = 0;
  /* Buffer index for distances. To simplify the code, d_buf and l_buf have
   * the same number of elements. To use different lengths, an extra flag
   * array would be necessary.
   */

  this.opt_len = 0;       /* bit length of current block with optimal trees */
  this.static_len = 0;    /* bit length of current block with static trees */
  this.matches = 0;       /* number of string matches in current block */
  this.insert = 0;        /* bytes at end of window left to insert */


  this.bi_buf = 0;
  /* Output buffer. bits are inserted starting at the bottom (least
   * significant bits).
   */
  this.bi_valid = 0;
  /* Number of valid bits in bi_buf.  All bits above the last valid bit
   * are always zero.
   */

  // Used for window memory init. We safely ignore it for JS. That makes
  // sense only for pointers and memory check tools.
  //this.high_water = 0;
  /* High water mark offset in window for initialized bytes -- bytes above
   * this are set to zero in order to avoid memory check warnings when
   * longest match routines access bytes past the input.  This is then
   * updated to the new high water mark.
   */
}


function deflateResetKeep(strm) {
  var s;

  if (!strm || !strm.state) {
    return err(strm, Z_STREAM_ERROR);
  }

  strm.total_in = strm.total_out = 0;
  strm.data_type = Z_UNKNOWN;

  s = strm.state;
  s.pending = 0;
  s.pending_out = 0;

  if (s.wrap < 0) {
    s.wrap = -s.wrap;
    /* was made negative by deflate(..., Z_FINISH); */
  }
  s.status = (s.wrap ? INIT_STATE : BUSY_STATE);
  strm.adler = (s.wrap === 2) ?
    0  // crc32(0, Z_NULL, 0)
  :
    1; // adler32(0, Z_NULL, 0)
  s.last_flush = Z_NO_FLUSH;
  trees._tr_init(s);
  return Z_OK;
}


function deflateReset(strm) {
  var ret = deflateResetKeep(strm);
  if (ret === Z_OK) {
    lm_init(strm.state);
  }
  return ret;
}


function deflateSetHeader(strm, head) {
  if (!strm || !strm.state) { return Z_STREAM_ERROR; }
  if (strm.state.wrap !== 2) { return Z_STREAM_ERROR; }
  strm.state.gzhead = head;
  return Z_OK;
}


function deflateInit2(strm, level, method, windowBits, memLevel, strategy) {
  if (!strm) { // === Z_NULL
    return Z_STREAM_ERROR;
  }
  var wrap = 1;

  if (level === Z_DEFAULT_COMPRESSION) {
    level = 6;
  }

  if (windowBits < 0) { /* suppress zlib wrapper */
    wrap = 0;
    windowBits = -windowBits;
  }

  else if (windowBits > 15) {
    wrap = 2;           /* write gzip wrapper instead */
    windowBits -= 16;
  }


  if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method !== Z_DEFLATED ||
    windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
    strategy < 0 || strategy > Z_FIXED) {
    return err(strm, Z_STREAM_ERROR);
  }


  if (windowBits === 8) {
    windowBits = 9;
  }
  /* until 256-byte window bug fixed */

  var s = new DeflateState();

  strm.state = s;
  s.strm = strm;

  s.wrap = wrap;
  s.gzhead = null;
  s.w_bits = windowBits;
  s.w_size = 1 << s.w_bits;
  s.w_mask = s.w_size - 1;

  s.hash_bits = memLevel + 7;
  s.hash_size = 1 << s.hash_bits;
  s.hash_mask = s.hash_size - 1;
  s.hash_shift = ~~((s.hash_bits + MIN_MATCH - 1) / MIN_MATCH);

  s.window = new utils.Buf8(s.w_size * 2);
  s.head = new utils.Buf16(s.hash_size);
  s.prev = new utils.Buf16(s.w_size);

  // Don't need mem init magic for JS.
  //s.high_water = 0;  /* nothing written to s->window yet */

  s.lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */

  s.pending_buf_size = s.lit_bufsize * 4;
  s.pending_buf = new utils.Buf8(s.pending_buf_size);

  s.d_buf = s.lit_bufsize >> 1;
  s.l_buf = (1 + 2) * s.lit_bufsize;

  s.level = level;
  s.strategy = strategy;
  s.method = method;

  return deflateReset(strm);
}

function deflateInit(strm, level) {
  return deflateInit2(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
}


function deflate(strm, flush) {
  var old_flush, s;
  var beg, val; // for gzip header write only

  if (!strm || !strm.state ||
    flush > Z_BLOCK || flush < 0) {
    return strm ? err(strm, Z_STREAM_ERROR) : Z_STREAM_ERROR;
  }

  s = strm.state;

  if (!strm.output ||
      (!strm.input && strm.avail_in !== 0) ||
      (s.status === FINISH_STATE && flush !== Z_FINISH)) {
    return err(strm, (strm.avail_out === 0) ? Z_BUF_ERROR : Z_STREAM_ERROR);
  }

  s.strm = strm; /* just in case */
  old_flush = s.last_flush;
  s.last_flush = flush;

  /* Write the header */
  if (s.status === INIT_STATE) {

    if (s.wrap === 2) { // GZIP header
      strm.adler = 0;  //crc32(0L, Z_NULL, 0);
      put_byte(s, 31);
      put_byte(s, 139);
      put_byte(s, 8);
      if (!s.gzhead) { // s->gzhead == Z_NULL
        put_byte(s, 0);
        put_byte(s, 0);
        put_byte(s, 0);
        put_byte(s, 0);
        put_byte(s, 0);
        put_byte(s, s.level === 9 ? 2 :
                    (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ?
                     4 : 0));
        put_byte(s, OS_CODE);
        s.status = BUSY_STATE;
      }
      else {
        put_byte(s, (s.gzhead.text ? 1 : 0) +
                    (s.gzhead.hcrc ? 2 : 0) +
                    (!s.gzhead.extra ? 0 : 4) +
                    (!s.gzhead.name ? 0 : 8) +
                    (!s.gzhead.comment ? 0 : 16)
                );
        put_byte(s, s.gzhead.time & 0xff);
        put_byte(s, (s.gzhead.time >> 8) & 0xff);
        put_byte(s, (s.gzhead.time >> 16) & 0xff);
        put_byte(s, (s.gzhead.time >> 24) & 0xff);
        put_byte(s, s.level === 9 ? 2 :
                    (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ?
                     4 : 0));
        put_byte(s, s.gzhead.os & 0xff);
        if (s.gzhead.extra && s.gzhead.extra.length) {
          put_byte(s, s.gzhead.extra.length & 0xff);
          put_byte(s, (s.gzhead.extra.length >> 8) & 0xff);
        }
        if (s.gzhead.hcrc) {
          strm.adler = crc32(strm.adler, s.pending_buf, s.pending, 0);
        }
        s.gzindex = 0;
        s.status = EXTRA_STATE;
      }
    }
    else // DEFLATE header
    {
      var header = (Z_DEFLATED + ((s.w_bits - 8) << 4)) << 8;
      var level_flags = -1;

      if (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2) {
        level_flags = 0;
      } else if (s.level < 6) {
        level_flags = 1;
      } else if (s.level === 6) {
        level_flags = 2;
      } else {
        level_flags = 3;
      }
      header |= (level_flags << 6);
      if (s.strstart !== 0) { header |= PRESET_DICT; }
      header += 31 - (header % 31);

      s.status = BUSY_STATE;
      putShortMSB(s, header);

      /* Save the adler32 of the preset dictionary: */
      if (s.strstart !== 0) {
        putShortMSB(s, strm.adler >>> 16);
        putShortMSB(s, strm.adler & 0xffff);
      }
      strm.adler = 1; // adler32(0L, Z_NULL, 0);
    }
  }

//#ifdef GZIP
  if (s.status === EXTRA_STATE) {
    if (s.gzhead.extra/* != Z_NULL*/) {
      beg = s.pending;  /* start of bytes to update crc */

      while (s.gzindex < (s.gzhead.extra.length & 0xffff)) {
        if (s.pending === s.pending_buf_size) {
          if (s.gzhead.hcrc && s.pending > beg) {
            strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
          }
          flush_pending(strm);
          beg = s.pending;
          if (s.pending === s.pending_buf_size) {
            break;
          }
        }
        put_byte(s, s.gzhead.extra[s.gzindex] & 0xff);
        s.gzindex++;
      }
      if (s.gzhead.hcrc && s.pending > beg) {
        strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
      }
      if (s.gzindex === s.gzhead.extra.length) {
        s.gzindex = 0;
        s.status = NAME_STATE;
      }
    }
    else {
      s.status = NAME_STATE;
    }
  }
  if (s.status === NAME_STATE) {
    if (s.gzhead.name/* != Z_NULL*/) {
      beg = s.pending;  /* start of bytes to update crc */
      //int val;

      do {
        if (s.pending === s.pending_buf_size) {
          if (s.gzhead.hcrc && s.pending > beg) {
            strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
          }
          flush_pending(strm);
          beg = s.pending;
          if (s.pending === s.pending_buf_size) {
            val = 1;
            break;
          }
        }
        // JS specific: little magic to add zero terminator to end of string
        if (s.gzindex < s.gzhead.name.length) {
          val = s.gzhead.name.charCodeAt(s.gzindex++) & 0xff;
        } else {
          val = 0;
        }
        put_byte(s, val);
      } while (val !== 0);

      if (s.gzhead.hcrc && s.pending > beg) {
        strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
      }
      if (val === 0) {
        s.gzindex = 0;
        s.status = COMMENT_STATE;
      }
    }
    else {
      s.status = COMMENT_STATE;
    }
  }
  if (s.status === COMMENT_STATE) {
    if (s.gzhead.comment/* != Z_NULL*/) {
      beg = s.pending;  /* start of bytes to update crc */
      //int val;

      do {
        if (s.pending === s.pending_buf_size) {
          if (s.gzhead.hcrc && s.pending > beg) {
            strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
          }
          flush_pending(strm);
          beg = s.pending;
          if (s.pending === s.pending_buf_size) {
            val = 1;
            break;
          }
        }
        // JS specific: little magic to add zero terminator to end of string
        if (s.gzindex < s.gzhead.comment.length) {
          val = s.gzhead.comment.charCodeAt(s.gzindex++) & 0xff;
        } else {
          val = 0;
        }
        put_byte(s, val);
      } while (val !== 0);

      if (s.gzhead.hcrc && s.pending > beg) {
        strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
      }
      if (val === 0) {
        s.status = HCRC_STATE;
      }
    }
    else {
      s.status = HCRC_STATE;
    }
  }
  if (s.status === HCRC_STATE) {
    if (s.gzhead.hcrc) {
      if (s.pending + 2 > s.pending_buf_size) {
        flush_pending(strm);
      }
      if (s.pending + 2 <= s.pending_buf_size) {
        put_byte(s, strm.adler & 0xff);
        put_byte(s, (strm.adler >> 8) & 0xff);
        strm.adler = 0; //crc32(0L, Z_NULL, 0);
        s.status = BUSY_STATE;
      }
    }
    else {
      s.status = BUSY_STATE;
    }
  }
//#endif

  /* Flush as much pending output as possible */
  if (s.pending !== 0) {
    flush_pending(strm);
    if (strm.avail_out === 0) {
      /* Since avail_out is 0, deflate will be called again with
       * more output space, but possibly with both pending and
       * avail_in equal to zero. There won't be anything to do,
       * but this is not an error situation so make sure we
       * return OK instead of BUF_ERROR at next call of deflate:
       */
      s.last_flush = -1;
      return Z_OK;
    }

    /* Make sure there is something to do and avoid duplicate consecutive
     * flushes. For repeated and useless calls with Z_FINISH, we keep
     * returning Z_STREAM_END instead of Z_BUF_ERROR.
     */
  } else if (strm.avail_in === 0 && rank(flush) <= rank(old_flush) &&
    flush !== Z_FINISH) {
    return err(strm, Z_BUF_ERROR);
  }

  /* User must not provide more input after the first FINISH: */
  if (s.status === FINISH_STATE && strm.avail_in !== 0) {
    return err(strm, Z_BUF_ERROR);
  }

  /* Start a new block or continue the current one.
   */
  if (strm.avail_in !== 0 || s.lookahead !== 0 ||
    (flush !== Z_NO_FLUSH && s.status !== FINISH_STATE)) {
    var bstate = (s.strategy === Z_HUFFMAN_ONLY) ? deflate_huff(s, flush) :
      (s.strategy === Z_RLE ? deflate_rle(s, flush) :
        configuration_table[s.level].func(s, flush));

    if (bstate === BS_FINISH_STARTED || bstate === BS_FINISH_DONE) {
      s.status = FINISH_STATE;
    }
    if (bstate === BS_NEED_MORE || bstate === BS_FINISH_STARTED) {
      if (strm.avail_out === 0) {
        s.last_flush = -1;
        /* avoid BUF_ERROR next call, see above */
      }
      return Z_OK;
      /* If flush != Z_NO_FLUSH && avail_out == 0, the next call
       * of deflate should use the same flush parameter to make sure
       * that the flush is complete. So we don't have to output an
       * empty block here, this will be done at next call. This also
       * ensures that for a very small output buffer, we emit at most
       * one empty block.
       */
    }
    if (bstate === BS_BLOCK_DONE) {
      if (flush === Z_PARTIAL_FLUSH) {
        trees._tr_align(s);
      }
      else if (flush !== Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */

        trees._tr_stored_block(s, 0, 0, false);
        /* For a full flush, this empty block will be recognized
         * as a special marker by inflate_sync().
         */
        if (flush === Z_FULL_FLUSH) {
          /*** CLEAR_HASH(s); ***/             /* forget history */
          zero(s.head); // Fill with NIL (= 0);

          if (s.lookahead === 0) {
            s.strstart = 0;
            s.block_start = 0;
            s.insert = 0;
          }
        }
      }
      flush_pending(strm);
      if (strm.avail_out === 0) {
        s.last_flush = -1; /* avoid BUF_ERROR at next call, see above */
        return Z_OK;
      }
    }
  }
  //Assert(strm->avail_out > 0, "bug2");
  //if (strm.avail_out <= 0) { throw new Error("bug2");}

  if (flush !== Z_FINISH) { return Z_OK; }
  if (s.wrap <= 0) { return Z_STREAM_END; }

  /* Write the trailer */
  if (s.wrap === 2) {
    put_byte(s, strm.adler & 0xff);
    put_byte(s, (strm.adler >> 8) & 0xff);
    put_byte(s, (strm.adler >> 16) & 0xff);
    put_byte(s, (strm.adler >> 24) & 0xff);
    put_byte(s, strm.total_in & 0xff);
    put_byte(s, (strm.total_in >> 8) & 0xff);
    put_byte(s, (strm.total_in >> 16) & 0xff);
    put_byte(s, (strm.total_in >> 24) & 0xff);
  }
  else
  {
    putShortMSB(s, strm.adler >>> 16);
    putShortMSB(s, strm.adler & 0xffff);
  }

  flush_pending(strm);
  /* If avail_out is zero, the application will call deflate again
   * to flush the rest.
   */
  if (s.wrap > 0) { s.wrap = -s.wrap; }
  /* write the trailer only once! */
  return s.pending !== 0 ? Z_OK : Z_STREAM_END;
}

function deflateEnd(strm) {
  var status;

  if (!strm/*== Z_NULL*/ || !strm.state/*== Z_NULL*/) {
    return Z_STREAM_ERROR;
  }

  status = strm.state.status;
  if (status !== INIT_STATE &&
    status !== EXTRA_STATE &&
    status !== NAME_STATE &&
    status !== COMMENT_STATE &&
    status !== HCRC_STATE &&
    status !== BUSY_STATE &&
    status !== FINISH_STATE
  ) {
    return err(strm, Z_STREAM_ERROR);
  }

  strm.state = null;

  return status === BUSY_STATE ? err(strm, Z_DATA_ERROR) : Z_OK;
}

/* =========================================================================
 * Copy the source state to the destination state
 */
//function deflateCopy(dest, source) {
//
//}

exports.deflateInit = deflateInit;
exports.deflateInit2 = deflateInit2;
exports.deflateReset = deflateReset;
exports.deflateResetKeep = deflateResetKeep;
exports.deflateSetHeader = deflateSetHeader;
exports.deflate = deflate;
exports.deflateEnd = deflateEnd;
exports.deflateInfo = 'pako deflate (from Nodeca project)';

/* Not implemented
exports.deflateBound = deflateBound;
exports.deflateCopy = deflateCopy;
exports.deflateSetDictionary = deflateSetDictionary;
exports.deflateParams = deflateParams;
exports.deflatePending = deflatePending;
exports.deflatePrime = deflatePrime;
exports.deflateTune = deflateTune;
*/

},{"../utils/common":5,"./adler32":6,"./crc32":8,"./messages":13,"./trees":14}],10:[function(require,module,exports){
'use strict';

// See state defs from inflate.js
var BAD = 30;       /* got a data error -- remain here until reset */
var TYPE = 12;      /* i: waiting for type bits, including last-flag bit */

/*
   Decode literal, length, and distance codes and write out the resulting
   literal and match bytes until either not enough input or output is
   available, an end-of-block is encountered, or a data error is encountered.
   When large enough input and output buffers are supplied to inflate(), for
   example, a 16K input buffer and a 64K output buffer, more than 95% of the
   inflate execution time is spent in this routine.

   Entry assumptions:

        state.mode === LEN
        strm.avail_in >= 6
        strm.avail_out >= 258
        start >= strm.avail_out
        state.bits < 8

   On return, state.mode is one of:

        LEN -- ran out of enough output space or enough available input
        TYPE -- reached end of block code, inflate() to interpret next block
        BAD -- error in block data

   Notes:

    - The maximum input bits used by a length/distance pair is 15 bits for the
      length code, 5 bits for the length extra, 15 bits for the distance code,
      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
      Therefore if strm.avail_in >= 6, then there is enough input to avoid
      checking for available input while decoding.

    - The maximum bytes that a single length/distance pair can output is 258
      bytes, which is the maximum length that can be coded.  inflate_fast()
      requires strm.avail_out >= 258 for each loop to avoid checking for
      output space.
 */
module.exports = function inflate_fast(strm, start) {
  var state;
  var _in;                    /* local strm.input */
  var last;                   /* have enough input while in < last */
  var _out;                   /* local strm.output */
  var beg;                    /* inflate()'s initial strm.output */
  var end;                    /* while out < end, enough space available */
//#ifdef INFLATE_STRICT
  var dmax;                   /* maximum distance from zlib header */
//#endif
  var wsize;                  /* window size or zero if not using window */
  var whave;                  /* valid bytes in the window */
  var wnext;                  /* window write index */
  // Use `s_window` instead `window`, avoid conflict with instrumentation tools
  var s_window;               /* allocated sliding window, if wsize != 0 */
  var hold;                   /* local strm.hold */
  var bits;                   /* local strm.bits */
  var lcode;                  /* local strm.lencode */
  var dcode;                  /* local strm.distcode */
  var lmask;                  /* mask for first level of length codes */
  var dmask;                  /* mask for first level of distance codes */
  var here;                   /* retrieved table entry */
  var op;                     /* code bits, operation, extra bits, or */
                              /*  window position, window bytes to copy */
  var len;                    /* match length, unused bytes */
  var dist;                   /* match distance */
  var from;                   /* where to copy match from */
  var from_source;


  var input, output; // JS specific, because we have no pointers

  /* copy state to local variables */
  state = strm.state;
  //here = state.here;
  _in = strm.next_in;
  input = strm.input;
  last = _in + (strm.avail_in - 5);
  _out = strm.next_out;
  output = strm.output;
  beg = _out - (start - strm.avail_out);
  end = _out + (strm.avail_out - 257);
//#ifdef INFLATE_STRICT
  dmax = state.dmax;
//#endif
  wsize = state.wsize;
  whave = state.whave;
  wnext = state.wnext;
  s_window = state.window;
  hold = state.hold;
  bits = state.bits;
  lcode = state.lencode;
  dcode = state.distcode;
  lmask = (1 << state.lenbits) - 1;
  dmask = (1 << state.distbits) - 1;


  /* decode literals and length/distances until end-of-block or not enough
     input data or output space */

  top:
  do {
    if (bits < 15) {
      hold += input[_in++] << bits;
      bits += 8;
      hold += input[_in++] << bits;
      bits += 8;
    }

    here = lcode[hold & lmask];

    dolen:
    for (;;) { // Goto emulation
      op = here >>> 24/*here.bits*/;
      hold >>>= op;
      bits -= op;
      op = (here >>> 16) & 0xff/*here.op*/;
      if (op === 0) {                          /* literal */
        //Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
        //        "inflate:         literal '%c'\n" :
        //        "inflate:         literal 0x%02x\n", here.val));
        output[_out++] = here & 0xffff/*here.val*/;
      }
      else if (op & 16) {                     /* length base */
        len = here & 0xffff/*here.val*/;
        op &= 15;                           /* number of extra bits */
        if (op) {
          if (bits < op) {
            hold += input[_in++] << bits;
            bits += 8;
          }
          len += hold & ((1 << op) - 1);
          hold >>>= op;
          bits -= op;
        }
        //Tracevv((stderr, "inflate:         length %u\n", len));
        if (bits < 15) {
          hold += input[_in++] << bits;
          bits += 8;
          hold += input[_in++] << bits;
          bits += 8;
        }
        here = dcode[hold & dmask];

        dodist:
        for (;;) { // goto emulation
          op = here >>> 24/*here.bits*/;
          hold >>>= op;
          bits -= op;
          op = (here >>> 16) & 0xff/*here.op*/;

          if (op & 16) {                      /* distance base */
            dist = here & 0xffff/*here.val*/;
            op &= 15;                       /* number of extra bits */
            if (bits < op) {
              hold += input[_in++] << bits;
              bits += 8;
              if (bits < op) {
                hold += input[_in++] << bits;
                bits += 8;
              }
            }
            dist += hold & ((1 << op) - 1);
//#ifdef INFLATE_STRICT
            if (dist > dmax) {
              strm.msg = 'invalid distance too far back';
              state.mode = BAD;
              break top;
            }
//#endif
            hold >>>= op;
            bits -= op;
            //Tracevv((stderr, "inflate:         distance %u\n", dist));
            op = _out - beg;                /* max distance in output */
            if (dist > op) {                /* see if copy from window */
              op = dist - op;               /* distance back in window */
              if (op > whave) {
                if (state.sane) {
                  strm.msg = 'invalid distance too far back';
                  state.mode = BAD;
                  break top;
                }

// (!) This block is disabled in zlib defailts,
// don't enable it for binary compatibility
//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
//                if (len <= op - whave) {
//                  do {
//                    output[_out++] = 0;
//                  } while (--len);
//                  continue top;
//                }
//                len -= op - whave;
//                do {
//                  output[_out++] = 0;
//                } while (--op > whave);
//                if (op === 0) {
//                  from = _out - dist;
//                  do {
//                    output[_out++] = output[from++];
//                  } while (--len);
//                  continue top;
//                }
//#endif
              }
              from = 0; // window index
              from_source = s_window;
              if (wnext === 0) {           /* very common case */
                from += wsize - op;
                if (op < len) {         /* some from window */
                  len -= op;
                  do {
                    output[_out++] = s_window[from++];
                  } while (--op);
                  from = _out - dist;  /* rest from output */
                  from_source = output;
                }
              }
              else if (wnext < op) {      /* wrap around window */
                from += wsize + wnext - op;
                op -= wnext;
                if (op < len) {         /* some from end of window */
                  len -= op;
                  do {
                    output[_out++] = s_window[from++];
                  } while (--op);
                  from = 0;
                  if (wnext < len) {  /* some from start of window */
                    op = wnext;
                    len -= op;
                    do {
                      output[_out++] = s_window[from++];
                    } while (--op);
                    from = _out - dist;      /* rest from output */
                    from_source = output;
                  }
                }
              }
              else {                      /* contiguous in window */
                from += wnext - op;
                if (op < len) {         /* some from window */
                  len -= op;
                  do {
                    output[_out++] = s_window[from++];
                  } while (--op);
                  from = _out - dist;  /* rest from output */
                  from_source = output;
                }
              }
              while (len > 2) {
                output[_out++] = from_source[from++];
                output[_out++] = from_source[from++];
                output[_out++] = from_source[from++];
                len -= 3;
              }
              if (len) {
                output[_out++] = from_source[from++];
                if (len > 1) {
                  output[_out++] = from_source[from++];
                }
              }
            }
            else {
              from = _out - dist;          /* copy direct from output */
              do {                        /* minimum length is three */
                output[_out++] = output[from++];
                output[_out++] = output[from++];
                output[_out++] = output[from++];
                len -= 3;
              } while (len > 2);
              if (len) {
                output[_out++] = output[from++];
                if (len > 1) {
                  output[_out++] = output[from++];
                }
              }
            }
          }
          else if ((op & 64) === 0) {          /* 2nd level distance code */
            here = dcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))];
            continue dodist;
          }
          else {
            strm.msg = 'invalid distance code';
            state.mode = BAD;
            break top;
          }

          break; // need to emulate goto via "continue"
        }
      }
      else if ((op & 64) === 0) {              /* 2nd level length code */
        here = lcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))];
        continue dolen;
      }
      else if (op & 32) {                     /* end-of-block */
        //Tracevv((stderr, "inflate:         end of block\n"));
        state.mode = TYPE;
        break top;
      }
      else {
        strm.msg = 'invalid literal/length code';
        state.mode = BAD;
        break top;
      }

      break; // need to emulate goto via "continue"
    }
  } while (_in < last && _out < end);

  /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
  len = bits >> 3;
  _in -= len;
  bits -= len << 3;
  hold &= (1 << bits) - 1;

  /* update state and return */
  strm.next_in = _in;
  strm.next_out = _out;
  strm.avail_in = (_in < last ? 5 + (last - _in) : 5 - (_in - last));
  strm.avail_out = (_out < end ? 257 + (end - _out) : 257 - (_out - end));
  state.hold = hold;
  state.bits = bits;
  return;
};

},{}],11:[function(require,module,exports){
'use strict';


var utils = require('../utils/common');
var adler32 = require('./adler32');
var crc32   = require('./crc32');
var inflate_fast = require('./inffast');
var inflate_table = require('./inftrees');

var CODES = 0;
var LENS = 1;
var DISTS = 2;

/* Public constants ==========================================================*/
/* ===========================================================================*/


/* Allowed flush values; see deflate() and inflate() below for details */
//var Z_NO_FLUSH      = 0;
//var Z_PARTIAL_FLUSH = 1;
//var Z_SYNC_FLUSH    = 2;
//var Z_FULL_FLUSH    = 3;
var Z_FINISH        = 4;
var Z_BLOCK         = 5;
var Z_TREES         = 6;


/* Return codes for the compression/decompression functions. Negative values
 * are errors, positive values are used for special but normal events.
 */
var Z_OK            = 0;
var Z_STREAM_END    = 1;
var Z_NEED_DICT     = 2;
//var Z_ERRNO         = -1;
var Z_STREAM_ERROR  = -2;
var Z_DATA_ERROR    = -3;
var Z_MEM_ERROR     = -4;
var Z_BUF_ERROR     = -5;
//var Z_VERSION_ERROR = -6;

/* The deflate compression method */
var Z_DEFLATED  = 8;


/* STATES ====================================================================*/
/* ===========================================================================*/


var    HEAD = 1;       /* i: waiting for magic header */
var    FLAGS = 2;      /* i: waiting for method and flags (gzip) */
var    TIME = 3;       /* i: waiting for modification time (gzip) */
var    OS = 4;         /* i: waiting for extra flags and operating system (gzip) */
var    EXLEN = 5;      /* i: waiting for extra length (gzip) */
var    EXTRA = 6;      /* i: waiting for extra bytes (gzip) */
var    NAME = 7;       /* i: waiting for end of file name (gzip) */
var    COMMENT = 8;    /* i: waiting for end of comment (gzip) */
var    HCRC = 9;       /* i: waiting for header crc (gzip) */
var    DICTID = 10;    /* i: waiting for dictionary check value */
var    DICT = 11;      /* waiting for inflateSetDictionary() call */
var        TYPE = 12;      /* i: waiting for type bits, including last-flag bit */
var        TYPEDO = 13;    /* i: same, but skip check to exit inflate on new block */
var        STORED = 14;    /* i: waiting for stored size (length and complement) */
var        COPY_ = 15;     /* i/o: same as COPY below, but only first time in */
var        COPY = 16;      /* i/o: waiting for input or output to copy stored block */
var        TABLE = 17;     /* i: waiting for dynamic block table lengths */
var        LENLENS = 18;   /* i: waiting for code length code lengths */
var        CODELENS = 19;  /* i: waiting for length/lit and distance code lengths */
var            LEN_ = 20;      /* i: same as LEN below, but only first time in */
var            LEN = 21;       /* i: waiting for length/lit/eob code */
var            LENEXT = 22;    /* i: waiting for length extra bits */
var            DIST = 23;      /* i: waiting for distance code */
var            DISTEXT = 24;   /* i: waiting for distance extra bits */
var            MATCH = 25;     /* o: waiting for output space to copy string */
var            LIT = 26;       /* o: waiting for output space to write literal */
var    CHECK = 27;     /* i: waiting for 32-bit check value */
var    LENGTH = 28;    /* i: waiting for 32-bit length (gzip) */
var    DONE = 29;      /* finished check, done -- remain here until reset */
var    BAD = 30;       /* got a data error -- remain here until reset */
var    MEM = 31;       /* got an inflate() memory error -- remain here until reset */
var    SYNC = 32;      /* looking for synchronization bytes to restart inflate() */

/* ===========================================================================*/



var ENOUGH_LENS = 852;
var ENOUGH_DISTS = 592;
//var ENOUGH =  (ENOUGH_LENS+ENOUGH_DISTS);

var MAX_WBITS = 15;
/* 32K LZ77 window */
var DEF_WBITS = MAX_WBITS;


function ZSWAP32(q) {
  return  (((q >>> 24) & 0xff) +
          ((q >>> 8) & 0xff00) +
          ((q & 0xff00) << 8) +
          ((q & 0xff) << 24));
}


function InflateState() {
  this.mode = 0;             /* current inflate mode */
  this.last = false;          /* true if processing last block */
  this.wrap = 0;              /* bit 0 true for zlib, bit 1 true for gzip */
  this.havedict = false;      /* true if dictionary provided */
  this.flags = 0;             /* gzip header method and flags (0 if zlib) */
  this.dmax = 0;              /* zlib header max distance (INFLATE_STRICT) */
  this.check = 0;             /* protected copy of check value */
  this.total = 0;             /* protected copy of output count */
  // TODO: may be {}
  this.head = null;           /* where to save gzip header information */

  /* sliding window */
  this.wbits = 0;             /* log base 2 of requested window size */
  this.wsize = 0;             /* window size or zero if not using window */
  this.whave = 0;             /* valid bytes in the window */
  this.wnext = 0;             /* window write index */
  this.window = null;         /* allocated sliding window, if needed */

  /* bit accumulator */
  this.hold = 0;              /* input bit accumulator */
  this.bits = 0;              /* number of bits in "in" */

  /* for string and stored block copying */
  this.length = 0;            /* literal or length of data to copy */
  this.offset = 0;            /* distance back to copy string from */

  /* for table and code decoding */
  this.extra = 0;             /* extra bits needed */

  /* fixed and dynamic code tables */
  this.lencode = null;          /* starting table for length/literal codes */
  this.distcode = null;         /* starting table for distance codes */
  this.lenbits = 0;           /* index bits for lencode */
  this.distbits = 0;          /* index bits for distcode */

  /* dynamic table building */
  this.ncode = 0;             /* number of code length code lengths */
  this.nlen = 0;              /* number of length code lengths */
  this.ndist = 0;             /* number of distance code lengths */
  this.have = 0;              /* number of code lengths in lens[] */
  this.next = null;              /* next available space in codes[] */

  this.lens = new utils.Buf16(320); /* temporary storage for code lengths */
  this.work = new utils.Buf16(288); /* work area for code table building */

  /*
   because we don't have pointers in js, we use lencode and distcode directly
   as buffers so we don't need codes
  */
  //this.codes = new utils.Buf32(ENOUGH);       /* space for code tables */
  this.lendyn = null;              /* dynamic table for length/literal codes (JS specific) */
  this.distdyn = null;             /* dynamic table for distance codes (JS specific) */
  this.sane = 0;                   /* if false, allow invalid distance too far */
  this.back = 0;                   /* bits back of last unprocessed length/lit */
  this.was = 0;                    /* initial length of match */
}

function inflateResetKeep(strm) {
  var state;

  if (!strm || !strm.state) { return Z_STREAM_ERROR; }
  state = strm.state;
  strm.total_in = strm.total_out = state.total = 0;
  strm.msg = ''; /*Z_NULL*/
  if (state.wrap) {       /* to support ill-conceived Java test suite */
    strm.adler = state.wrap & 1;
  }
  state.mode = HEAD;
  state.last = 0;
  state.havedict = 0;
  state.dmax = 32768;
  state.head = null/*Z_NULL*/;
  state.hold = 0;
  state.bits = 0;
  //state.lencode = state.distcode = state.next = state.codes;
  state.lencode = state.lendyn = new utils.Buf32(ENOUGH_LENS);
  state.distcode = state.distdyn = new utils.Buf32(ENOUGH_DISTS);

  state.sane = 1;
  state.back = -1;
  //Tracev((stderr, "inflate: reset\n"));
  return Z_OK;
}

function inflateReset(strm) {
  var state;

  if (!strm || !strm.state) { return Z_STREAM_ERROR; }
  state = strm.state;
  state.wsize = 0;
  state.whave = 0;
  state.wnext = 0;
  return inflateResetKeep(strm);

}

function inflateReset2(strm, windowBits) {
  var wrap;
  var state;

  /* get the state */
  if (!strm || !strm.state) { return Z_STREAM_ERROR; }
  state = strm.state;

  /* extract wrap request from windowBits parameter */
  if (windowBits < 0) {
    wrap = 0;
    windowBits = -windowBits;
  }
  else {
    wrap = (windowBits >> 4) + 1;
    if (windowBits < 48) {
      windowBits &= 15;
    }
  }

  /* set number of window bits, free window if different */
  if (windowBits && (windowBits < 8 || windowBits > 15)) {
    return Z_STREAM_ERROR;
  }
  if (state.window !== null && state.wbits !== windowBits) {
    state.window = null;
  }

  /* update state and reset the rest of it */
  state.wrap = wrap;
  state.wbits = windowBits;
  return inflateReset(strm);
}

function inflateInit2(strm, windowBits) {
  var ret;
  var state;

  if (!strm) { return Z_STREAM_ERROR; }
  //strm.msg = Z_NULL;                 /* in case we return an error */

  state = new InflateState();

  //if (state === Z_NULL) return Z_MEM_ERROR;
  //Tracev((stderr, "inflate: allocated\n"));
  strm.state = state;
  state.window = null/*Z_NULL*/;
  ret = inflateReset2(strm, windowBits);
  if (ret !== Z_OK) {
    strm.state = null/*Z_NULL*/;
  }
  return ret;
}

function inflateInit(strm) {
  return inflateInit2(strm, DEF_WBITS);
}


/*
 Return state with length and distance decoding tables and index sizes set to
 fixed code decoding.  Normally this returns fixed tables from inffixed.h.
 If BUILDFIXED is defined, then instead this routine builds the tables the
 first time it's called, and returns those tables the first time and
 thereafter.  This reduces the size of the code by about 2K bytes, in
 exchange for a little execution time.  However, BUILDFIXED should not be
 used for threaded applications, since the rewriting of the tables and virgin
 may not be thread-safe.
 */
var virgin = true;

var lenfix, distfix; // We have no pointers in JS, so keep tables separate

function fixedtables(state) {
  /* build fixed huffman tables if first call (may not be thread safe) */
  if (virgin) {
    var sym;

    lenfix = new utils.Buf32(512);
    distfix = new utils.Buf32(32);

    /* literal/length table */
    sym = 0;
    while (sym < 144) { state.lens[sym++] = 8; }
    while (sym < 256) { state.lens[sym++] = 9; }
    while (sym < 280) { state.lens[sym++] = 7; }
    while (sym < 288) { state.lens[sym++] = 8; }

    inflate_table(LENS,  state.lens, 0, 288, lenfix,   0, state.work, {bits: 9});

    /* distance table */
    sym = 0;
    while (sym < 32) { state.lens[sym++] = 5; }

    inflate_table(DISTS, state.lens, 0, 32,   distfix, 0, state.work, {bits: 5});

    /* do this just once */
    virgin = false;
  }

  state.lencode = lenfix;
  state.lenbits = 9;
  state.distcode = distfix;
  state.distbits = 5;
}


/*
 Update the window with the last wsize (normally 32K) bytes written before
 returning.  If window does not exist yet, create it.  This is only called
 when a window is already in use, or when output has been written during this
 inflate call, but the end of the deflate stream has not been reached yet.
 It is also called to create a window for dictionary data when a dictionary
 is loaded.

 Providing output buffers larger than 32K to inflate() should provide a speed
 advantage, since only the last 32K of output is copied to the sliding window
 upon return from inflate(), and since all distances after the first 32K of
 output will fall in the output data, making match copies simpler and faster.
 The advantage may be dependent on the size of the processor's data caches.
 */
function updatewindow(strm, src, end, copy) {
  var dist;
  var state = strm.state;

  /* if it hasn't been done already, allocate space for the window */
  if (state.window === null) {
    state.wsize = 1 << state.wbits;
    state.wnext = 0;
    state.whave = 0;

    state.window = new utils.Buf8(state.wsize);
  }

  /* copy state->wsize or less output bytes into the circular window */
  if (copy >= state.wsize) {
    utils.arraySet(state.window,src, end - state.wsize, state.wsize, 0);
    state.wnext = 0;
    state.whave = state.wsize;
  }
  else {
    dist = state.wsize - state.wnext;
    if (dist > copy) {
      dist = copy;
    }
    //zmemcpy(state->window + state->wnext, end - copy, dist);
    utils.arraySet(state.window,src, end - copy, dist, state.wnext);
    copy -= dist;
    if (copy) {
      //zmemcpy(state->window, end - copy, copy);
      utils.arraySet(state.window,src, end - copy, copy, 0);
      state.wnext = copy;
      state.whave = state.wsize;
    }
    else {
      state.wnext += dist;
      if (state.wnext === state.wsize) { state.wnext = 0; }
      if (state.whave < state.wsize) { state.whave += dist; }
    }
  }
  return 0;
}

function inflate(strm, flush) {
  var state;
  var input, output;          // input/output buffers
  var next;                   /* next input INDEX */
  var put;                    /* next output INDEX */
  var have, left;             /* available input and output */
  var hold;                   /* bit buffer */
  var bits;                   /* bits in bit buffer */
  var _in, _out;              /* save starting available input and output */
  var copy;                   /* number of stored or match bytes to copy */
  var from;                   /* where to copy match bytes from */
  var from_source;
  var here = 0;               /* current decoding table entry */
  var here_bits, here_op, here_val; // paked "here" denormalized (JS specific)
  //var last;                   /* parent table entry */
  var last_bits, last_op, last_val; // paked "last" denormalized (JS specific)
  var len;                    /* length to copy for repeats, bits to drop */
  var ret;                    /* return code */
  var hbuf = new utils.Buf8(4);    /* buffer for gzip header crc calculation */
  var opts;

  var n; // temporary var for NEED_BITS

  var order = /* permutation of code lengths */
    [16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15];


  if (!strm || !strm.state || !strm.output ||
      (!strm.input && strm.avail_in !== 0)) {
    return Z_STREAM_ERROR;
  }

  state = strm.state;
  if (state.mode === TYPE) { state.mode = TYPEDO; }    /* skip check */


  //--- LOAD() ---
  put = strm.next_out;
  output = strm.output;
  left = strm.avail_out;
  next = strm.next_in;
  input = strm.input;
  have = strm.avail_in;
  hold = state.hold;
  bits = state.bits;
  //---

  _in = have;
  _out = left;
  ret = Z_OK;

  inf_leave: // goto emulation
  for (;;) {
    switch (state.mode) {
    case HEAD:
      if (state.wrap === 0) {
        state.mode = TYPEDO;
        break;
      }
      //=== NEEDBITS(16);
      while (bits < 16) {
        if (have === 0) { break inf_leave; }
        have--;
        hold += input[next++] << bits;
        bits += 8;
      }
      //===//
      if ((state.wrap & 2) && hold === 0x8b1f) {  /* gzip header */
        state.check = 0/*crc32(0L, Z_NULL, 0)*/;
        //=== CRC2(state.check, hold);
        hbuf[0] = hold & 0xff;
        hbuf[1] = (hold >>> 8) & 0xff;
        state.check = crc32(state.check, hbuf, 2, 0);
        //===//

        //=== INITBITS();
        hold = 0;
        bits = 0;
        //===//
        state.mode = FLAGS;
        break;
      }
      state.flags = 0;           /* expect zlib header */
      if (state.head) {
        state.head.done = false;
      }
      if (!(state.wrap & 1) ||   /* check if zlib header allowed */
        (((hold & 0xff)/*BITS(8)*/ << 8) + (hold >> 8)) % 31) {
        strm.msg = 'incorrect header check';
        state.mode = BAD;
        break;
      }
      if ((hold & 0x0f)/*BITS(4)*/ !== Z_DEFLATED) {
        strm.msg = 'unknown compression method';
        state.mode = BAD;
        break;
      }
      //--- DROPBITS(4) ---//
      hold >>>= 4;
      bits -= 4;
      //---//
      len = (hold & 0x0f)/*BITS(4)*/ + 8;
      if (state.wbits === 0) {
        state.wbits = len;
      }
      else if (len > state.wbits) {
        strm.msg = 'invalid window size';
        state.mode = BAD;
        break;
      }
      state.dmax = 1 << len;
      //Tracev((stderr, "inflate:   zlib header ok\n"));
      strm.adler = state.check = 1/*adler32(0L, Z_NULL, 0)*/;
      state.mode = hold & 0x200 ? DICTID : TYPE;
      //=== INITBITS();
      hold = 0;
      bits = 0;
      //===//
      break;
    case FLAGS:
      //=== NEEDBITS(16); */
      while (bits < 16) {
        if (have === 0) { break inf_leave; }
        have--;
        hold += input[next++] << bits;
        bits += 8;
      }
      //===//
      state.flags = hold;
      if ((state.flags & 0xff) !== Z_DEFLATED) {
        strm.msg = 'unknown compression method';
        state.mode = BAD;
        break;
      }
      if (state.flags & 0xe000) {
        strm.msg = 'unknown header flags set';
        state.mode = BAD;
        break;
      }
      if (state.head) {
        state.head.text = ((hold >> 8) & 1);
      }
      if (state.flags & 0x0200) {
        //=== CRC2(state.check, hold);
        hbuf[0] = hold & 0xff;
        hbuf[1] = (hold >>> 8) & 0xff;
        state.check = crc32(state.check, hbuf, 2, 0);
        //===//
      }
      //=== INITBITS();
      hold = 0;
      bits = 0;
      //===//
      state.mode = TIME;
      /* falls through */
    case TIME:
      //=== NEEDBITS(32); */
      while (bits < 32) {
        if (have === 0) { break inf_leave; }
        have--;
        hold += input[next++] << bits;
        bits += 8;
      }
      //===//
      if (state.head) {
        state.head.time = hold;
      }
      if (state.flags & 0x0200) {
        //=== CRC4(state.check, hold)
        hbuf[0] = hold & 0xff;
        hbuf[1] = (hold >>> 8) & 0xff;
        hbuf[2] = (hold >>> 16) & 0xff;
        hbuf[3] = (hold >>> 24) & 0xff;
        state.check = crc32(state.check, hbuf, 4, 0);
        //===
      }
      //=== INITBITS();
      hold = 0;
      bits = 0;
      //===//
      state.mode = OS;
      /* falls through */
    case OS:
      //=== NEEDBITS(16); */
      while (bits < 16) {
        if (have === 0) { break inf_leave; }
        have--;
        hold += input[next++] << bits;
        bits += 8;
      }
      //===//
      if (state.head) {
        state.head.xflags = (hold & 0xff);
        state.head.os = (hold >> 8);
      }
      if (state.flags & 0x0200) {
        //=== CRC2(state.check, hold);
        hbuf[0] = hold & 0xff;
        hbuf[1] = (hold >>> 8) & 0xff;
        state.check = crc32(state.check, hbuf, 2, 0);
        //===//
      }
      //=== INITBITS();
      hold = 0;
      bits = 0;
      //===//
      state.mode = EXLEN;
      /* falls through */
    case EXLEN:
      if (state.flags & 0x0400) {
        //=== NEEDBITS(16); */
        while (bits < 16) {
          if (have === 0) { break inf_leave; }
          have--;
          hold += input[next++] << bits;
          bits += 8;
        }
        //===//
        state.length = hold;
        if (state.head) {
          state.head.extra_len = hold;
        }
        if (state.flags & 0x0200) {
          //=== CRC2(state.check, hold);
          hbuf[0] = hold & 0xff;
          hbuf[1] = (hold >>> 8) & 0xff;
          state.check = crc32(state.check, hbuf, 2, 0);
          //===//
        }
        //=== INITBITS();
        hold = 0;
        bits = 0;
        //===//
      }
      else if (state.head) {
        state.head.extra = null/*Z_NULL*/;
      }
      state.mode = EXTRA;
      /* falls through */
    case EXTRA:
      if (state.flags & 0x0400) {
        copy = state.length;
        if (copy > have) { copy = have; }
        if (copy) {
          if (state.head) {
            len = state.head.extra_len - state.length;
            if (!state.head.extra) {
              // Use untyped array for more conveniend processing later
              state.head.extra = new Array(state.head.extra_len);
            }
            utils.arraySet(
              state.head.extra,
              input,
              next,
              // extra field is limited to 65536 bytes
              // - no need for additional size check
              copy,
              /*len + copy > state.head.extra_max - len ? state.head.extra_max : copy,*/
              len
            );
            //zmemcpy(state.head.extra + len, next,
            //        len + copy > state.head.extra_max ?
            //        state.head.extra_max - len : copy);
          }
          if (state.flags & 0x0200) {
            state.check = crc32(state.check, input, copy, next);
          }
          have -= copy;
          next += copy;
          state.length -= copy;
        }
        if (state.length) { break inf_leave; }
      }
      state.length = 0;
      state.mode = NAME;
      /* falls through */
    case NAME:
      if (state.flags & 0x0800) {
        if (have === 0) { break inf_leave; }
        copy = 0;
        do {
          // TODO: 2 or 1 bytes?
          len = input[next + copy++];
          /* use constant limit because in js we should not preallocate memory */
          if (state.head && len &&
              (state.length < 65536 /*state.head.name_max*/)) {
            state.head.name += String.fromCharCode(len);
          }
        } while (len && copy < have);

        if (state.flags & 0x0200) {
          state.check = crc32(state.check, input, copy, next);
        }
        have -= copy;
        next += copy;
        if (len) { break inf_leave; }
      }
      else if (state.head) {
        state.head.name = null;
      }
      state.length = 0;
      state.mode = COMMENT;
      /* falls through */
    case COMMENT:
      if (state.flags & 0x1000) {
        if (have === 0) { break inf_leave; }
        copy = 0;
        do {
          len = input[next + copy++];
          /* use constant limit because in js we should not preallocate memory */
          if (state.head && len &&
              (state.length < 65536 /*state.head.comm_max*/)) {
            state.head.comment += String.fromCharCode(len);
          }
        } while (len && copy < have);
        if (state.flags & 0x0200) {
          state.check = crc32(state.check, input, copy, next);
        }
        have -= copy;
        next += copy;
        if (len) { break inf_leave; }
      }
      else if (state.head) {
        state.head.comment = null;
      }
      state.mode = HCRC;
      /* falls through */
    case HCRC:
      if (state.flags & 0x0200) {
        //=== NEEDBITS(16); */
        while (bits < 16) {
          if (have === 0) { break inf_leave; }
          have--;
          hold += input[next++] << bits;
          bits += 8;
        }
        //===//
        if (hold !== (state.check & 0xffff)) {
          strm.msg = 'header crc mismatch';
          state.mode = BAD;
          break;
        }
        //=== INITBITS();
        hold = 0;
        bits = 0;
        //===//
      }
      if (state.head) {
        state.head.hcrc = ((state.flags >> 9) & 1);
        state.head.done = true;
      }
      strm.adler = state.check = 0 /*crc32(0L, Z_NULL, 0)*/;
      state.mode = TYPE;
      break;
    case DICTID:
      //=== NEEDBITS(32); */
      while (bits < 32) {
        if (have === 0) { break inf_leave; }
        have--;
        hold += input[next++] << bits;
        bits += 8;
      }
      //===//
      strm.adler = state.check = ZSWAP32(hold);
      //=== INITBITS();
      hold = 0;
      bits = 0;
      //===//
      state.mode = DICT;
      /* falls through */
    case DICT:
      if (state.havedict === 0) {
        //--- RESTORE() ---
        strm.next_out = put;
        strm.avail_out = left;
        strm.next_in = next;
        strm.avail_in = have;
        state.hold = hold;
        state.bits = bits;
        //---
        return Z_NEED_DICT;
      }
      strm.adler = state.check = 1/*adler32(0L, Z_NULL, 0)*/;
      state.mode = TYPE;
      /* falls through */
    case TYPE:
      if (flush === Z_BLOCK || flush === Z_TREES) { break inf_leave; }
      /* falls through */
    case TYPEDO:
      if (state.last) {
        //--- BYTEBITS() ---//
        hold >>>= bits & 7;
        bits -= bits & 7;
        //---//
        state.mode = CHECK;
        break;
      }
      //=== NEEDBITS(3); */
      while (bits < 3) {
        if (have === 0) { break inf_leave; }
        have--;
        hold += input[next++] << bits;
        bits += 8;
      }
      //===//
      state.last = (hold & 0x01)/*BITS(1)*/;
      //--- DROPBITS(1) ---//
      hold >>>= 1;
      bits -= 1;
      //---//

      switch ((hold & 0x03)/*BITS(2)*/) {
      case 0:                             /* stored block */
        //Tracev((stderr, "inflate:     stored block%s\n",
        //        state.last ? " (last)" : ""));
        state.mode = STORED;
        break;
      case 1:                             /* fixed block */
        fixedtables(state);
        //Tracev((stderr, "inflate:     fixed codes block%s\n",
        //        state.last ? " (last)" : ""));
        state.mode = LEN_;             /* decode codes */
        if (flush === Z_TREES) {
          //--- DROPBITS(2) ---//
          hold >>>= 2;
          bits -= 2;
          //---//
          break inf_leave;
        }
        break;
      case 2:                             /* dynamic block */
        //Tracev((stderr, "inflate:     dynamic codes block%s\n",
        //        state.last ? " (last)" : ""));
        state.mode = TABLE;
        break;
      case 3:
        strm.msg = 'invalid block type';
        state.mode = BAD;
      }
      //--- DROPBITS(2) ---//
      hold >>>= 2;
      bits -= 2;
      //---//
      break;
    case STORED:
      //--- BYTEBITS() ---// /* go to byte boundary */
      hold >>>= bits & 7;
      bits -= bits & 7;
      //---//
      //=== NEEDBITS(32); */
      while (bits < 32) {
        if (have === 0) { break inf_leave; }
        have--;
        hold += input[next++] << bits;
        bits += 8;
      }
      //===//
      if ((hold & 0xffff) !== ((hold >>> 16) ^ 0xffff)) {
        strm.msg = 'invalid stored block lengths';
        state.mode = BAD;
        break;
      }
      state.length = hold & 0xffff;
      //Tracev((stderr, "inflate:       stored length %u\n",
      //        state.length));
      //=== INITBITS();
      hold = 0;
      bits = 0;
      //===//
      state.mode = COPY_;
      if (flush === Z_TREES) { break inf_leave; }
      /* falls through */
    case COPY_:
      state.mode = COPY;
      /* falls through */
    case COPY:
      copy = state.length;
      if (copy) {
        if (copy > have) { copy = have; }
        if (copy > left) { copy = left; }
        if (copy === 0) { break inf_leave; }
        //--- zmemcpy(put, next, copy); ---
        utils.arraySet(output, input, next, copy, put);
        //---//
        have -= copy;
        next += copy;
        left -= copy;
        put += copy;
        state.length -= copy;
        break;
      }
      //Tracev((stderr, "inflate:       stored end\n"));
      state.mode = TYPE;
      break;
    case TABLE:
      //=== NEEDBITS(14); */
      while (bits < 14) {
        if (have === 0) { break inf_leave; }
        have--;
        hold += input[next++] << bits;
        bits += 8;
      }
      //===//
      state.nlen = (hold & 0x1f)/*BITS(5)*/ + 257;
      //--- DROPBITS(5) ---//
      hold >>>= 5;
      bits -= 5;
      //---//
      state.ndist = (hold & 0x1f)/*BITS(5)*/ + 1;
      //--- DROPBITS(5) ---//
      hold >>>= 5;
      bits -= 5;
      //---//
      state.ncode = (hold & 0x0f)/*BITS(4)*/ + 4;
      //--- DROPBITS(4) ---//
      hold >>>= 4;
      bits -= 4;
      //---//
//#ifndef PKZIP_BUG_WORKAROUND
      if (state.nlen > 286 || state.ndist > 30) {
        strm.msg = 'too many length or distance symbols';
        state.mode = BAD;
        break;
      }
//#endif
      //Tracev((stderr, "inflate:       table sizes ok\n"));
      state.have = 0;
      state.mode = LENLENS;
      /* falls through */
    case LENLENS:
      while (state.have < state.ncode) {
        //=== NEEDBITS(3);
        while (bits < 3) {
          if (have === 0) { break inf_leave; }
          have--;
          hold += input[next++] << bits;
          bits += 8;
        }
        //===//
        state.lens[order[state.have++]] = (hold & 0x07);//BITS(3);
        //--- DROPBITS(3) ---//
        hold >>>= 3;
        bits -= 3;
        //---//
      }
      while (state.have < 19) {
        state.lens[order[state.have++]] = 0;
      }
      // We have separate tables & no pointers. 2 commented lines below not needed.
      //state.next = state.codes;
      //state.lencode = state.next;
      // Switch to use dynamic table
      state.lencode = state.lendyn;
      state.lenbits = 7;

      opts = {bits: state.lenbits};
      ret = inflate_table(CODES, state.lens, 0, 19, state.lencode, 0, state.work, opts);
      state.lenbits = opts.bits;

      if (ret) {
        strm.msg = 'invalid code lengths set';
        state.mode = BAD;
        break;
      }
      //Tracev((stderr, "inflate:       code lengths ok\n"));
      state.have = 0;
      state.mode = CODELENS;
      /* falls through */
    case CODELENS:
      while (state.have < state.nlen + state.ndist) {
        for (;;) {
          here = state.lencode[hold & ((1 << state.lenbits) - 1)];/*BITS(state.lenbits)*/
          here_bits = here >>> 24;
          here_op = (here >>> 16) & 0xff;
          here_val = here & 0xffff;

          if ((here_bits) <= bits) { break; }
          //--- PULLBYTE() ---//
          if (have === 0) { break inf_leave; }
          have--;
          hold += input[next++] << bits;
          bits += 8;
          //---//
        }
        if (here_val < 16) {
          //--- DROPBITS(here.bits) ---//
          hold >>>= here_bits;
          bits -= here_bits;
          //---//
          state.lens[state.have++] = here_val;
        }
        else {
          if (here_val === 16) {
            //=== NEEDBITS(here.bits + 2);
            n = here_bits + 2;
            while (bits < n) {
              if (have === 0) { break inf_leave; }
              have--;
              hold += input[next++] << bits;
              bits += 8;
            }
            //===//
            //--- DROPBITS(here.bits) ---//
            hold >>>= here_bits;
            bits -= here_bits;
            //---//
            if (state.have === 0) {
              strm.msg = 'invalid bit length repeat';
              state.mode = BAD;
              break;
            }
            len = state.lens[state.have - 1];
            copy = 3 + (hold & 0x03);//BITS(2);
            //--- DROPBITS(2) ---//
            hold >>>= 2;
            bits -= 2;
            //---//
          }
          else if (here_val === 17) {
            //=== NEEDBITS(here.bits + 3);
            n = here_bits + 3;
            while (bits < n) {
              if (have === 0) { break inf_leave; }
              have--;
              hold += input[next++] << bits;
              bits += 8;
            }
            //===//
            //--- DROPBITS(here.bits) ---//
            hold >>>= here_bits;
            bits -= here_bits;
            //---//
            len = 0;
            copy = 3 + (hold & 0x07);//BITS(3);
            //--- DROPBITS(3) ---//
            hold >>>= 3;
            bits -= 3;
            //---//
          }
          else {
            //=== NEEDBITS(here.bits + 7);
            n = here_bits + 7;
            while (bits < n) {
              if (have === 0) { break inf_leave; }
              have--;
              hold += input[next++] << bits;
              bits += 8;
            }
            //===//
            //--- DROPBITS(here.bits) ---//
            hold >>>= here_bits;
            bits -= here_bits;
            //---//
            len = 0;
            copy = 11 + (hold & 0x7f);//BITS(7);
            //--- DROPBITS(7) ---//
            hold >>>= 7;
            bits -= 7;
            //---//
          }
          if (state.have + copy > state.nlen + state.ndist) {
            strm.msg = 'invalid bit length repeat';
            state.mode = BAD;
            break;
          }
          while (copy--) {
            state.lens[state.have++] = len;
          }
        }
      }

      /* handle error breaks in while */
      if (state.mode === BAD) { break; }

      /* check for end-of-block code (better have one) */
      if (state.lens[256] === 0) {
        strm.msg = 'invalid code -- missing end-of-block';
        state.mode = BAD;
        break;
      }

      /* build code tables -- note: do not change the lenbits or distbits
         values here (9 and 6) without reading the comments in inftrees.h
         concerning the ENOUGH constants, which depend on those values */
      state.lenbits = 9;

      opts = {bits: state.lenbits};
      ret = inflate_table(LENS, state.lens, 0, state.nlen, state.lencode, 0, state.work, opts);
      // We have separate tables & no pointers. 2 commented lines below not needed.
      // state.next_index = opts.table_index;
      state.lenbits = opts.bits;
      // state.lencode = state.next;

      if (ret) {
        strm.msg = 'invalid literal/lengths set';
        state.mode = BAD;
        break;
      }

      state.distbits = 6;
      //state.distcode.copy(state.codes);
      // Switch to use dynamic table
      state.distcode = state.distdyn;
      opts = {bits: state.distbits};
      ret = inflate_table(DISTS, state.lens, state.nlen, state.ndist, state.distcode, 0, state.work, opts);
      // We have separate tables & no pointers. 2 commented lines below not needed.
      // state.next_index = opts.table_index;
      state.distbits = opts.bits;
      // state.distcode = state.next;

      if (ret) {
        strm.msg = 'invalid distances set';
        state.mode = BAD;
        break;
      }
      //Tracev((stderr, 'inflate:       codes ok\n'));
      state.mode = LEN_;
      if (flush === Z_TREES) { break inf_leave; }
      /* falls through */
    case LEN_:
      state.mode = LEN;
      /* falls through */
    case LEN:
      if (have >= 6 && left >= 258) {
        //--- RESTORE() ---
        strm.next_out = put;
        strm.avail_out = left;
        strm.next_in = next;
        strm.avail_in = have;
        state.hold = hold;
        state.bits = bits;
        //---
        inflate_fast(strm, _out);
        //--- LOAD() ---
        put = strm.next_out;
        output = strm.output;
        left = strm.avail_out;
        next = strm.next_in;
        input = strm.input;
        have = strm.avail_in;
        hold = state.hold;
        bits = state.bits;
        //---

        if (state.mode === TYPE) {
          state.back = -1;
        }
        break;
      }
      state.back = 0;
      for (;;) {
        here = state.lencode[hold & ((1 << state.lenbits) -1)];  /*BITS(state.lenbits)*/
        here_bits = here >>> 24;
        here_op = (here >>> 16) & 0xff;
        here_val = here & 0xffff;

        if (here_bits <= bits) { break; }
        //--- PULLBYTE() ---//
        if (have === 0) { break inf_leave; }
        have--;
        hold += input[next++] << bits;
        bits += 8;
        //---//
      }
      if (here_op && (here_op & 0xf0) === 0) {
        last_bits = here_bits;
        last_op = here_op;
        last_val = here_val;
        for (;;) {
          here = state.lencode[last_val +
                  ((hold & ((1 << (last_bits + last_op)) -1))/*BITS(last.bits + last.op)*/ >> last_bits)];
          here_bits = here >>> 24;
          here_op = (here >>> 16) & 0xff;
          here_val = here & 0xffff;

          if ((last_bits + here_bits) <= bits) { break; }
          //--- PULLBYTE() ---//
          if (have === 0) { break inf_leave; }
          have--;
          hold += input[next++] << bits;
          bits += 8;
          //---//
        }
        //--- DROPBITS(last.bits) ---//
        hold >>>= last_bits;
        bits -= last_bits;
        //---//
        state.back += last_bits;
      }
      //--- DROPBITS(here.bits) ---//
      hold >>>= here_bits;
      bits -= here_bits;
      //---//
      state.back += here_bits;
      state.length = here_val;
      if (here_op === 0) {
        //Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
        //        "inflate:         literal '%c'\n" :
        //        "inflate:         literal 0x%02x\n", here.val));
        state.mode = LIT;
        break;
      }
      if (here_op & 32) {
        //Tracevv((stderr, "inflate:         end of block\n"));
        state.back = -1;
        state.mode = TYPE;
        break;
      }
      if (here_op & 64) {
        strm.msg = 'invalid literal/length code';
        state.mode = BAD;
        break;
      }
      state.extra = here_op & 15;
      state.mode = LENEXT;
      /* falls through */
    case LENEXT:
      if (state.extra) {
        //=== NEEDBITS(state.extra);
        n = state.extra;
        while (bits < n) {
          if (have === 0) { break inf_leave; }
          have--;
          hold += input[next++] << bits;
          bits += 8;
        }
        //===//
        state.length += hold & ((1 << state.extra) -1)/*BITS(state.extra)*/;
        //--- DROPBITS(state.extra) ---//
        hold >>>= state.extra;
        bits -= state.extra;
        //---//
        state.back += state.extra;
      }
      //Tracevv((stderr, "inflate:         length %u\n", state.length));
      state.was = state.length;
      state.mode = DIST;
      /* falls through */
    case DIST:
      for (;;) {
        here = state.distcode[hold & ((1 << state.distbits) -1)];/*BITS(state.distbits)*/
        here_bits = here >>> 24;
        here_op = (here >>> 16) & 0xff;
        here_val = here & 0xffff;

        if ((here_bits) <= bits) { break; }
        //--- PULLBYTE() ---//
        if (have === 0) { break inf_leave; }
        have--;
        hold += input[next++] << bits;
        bits += 8;
        //---//
      }
      if ((here_op & 0xf0) === 0) {
        last_bits = here_bits;
        last_op = here_op;
        last_val = here_val;
        for (;;) {
          here = state.distcode[last_val +
                  ((hold & ((1 << (last_bits + last_op)) -1))/*BITS(last.bits + last.op)*/ >> last_bits)];
          here_bits = here >>> 24;
          here_op = (here >>> 16) & 0xff;
          here_val = here & 0xffff;

          if ((last_bits + here_bits) <= bits) { break; }
          //--- PULLBYTE() ---//
          if (have === 0) { break inf_leave; }
          have--;
          hold += input[next++] << bits;
          bits += 8;
          //---//
        }
        //--- DROPBITS(last.bits) ---//
        hold >>>= last_bits;
        bits -= last_bits;
        //---//
        state.back += last_bits;
      }
      //--- DROPBITS(here.bits) ---//
      hold >>>= here_bits;
      bits -= here_bits;
      //---//
      state.back += here_bits;
      if (here_op & 64) {
        strm.msg = 'invalid distance code';
        state.mode = BAD;
        break;
      }
      state.offset = here_val;
      state.extra = (here_op) & 15;
      state.mode = DISTEXT;
      /* falls through */
    case DISTEXT:
      if (state.extra) {
        //=== NEEDBITS(state.extra);
        n = state.extra;
        while (bits < n) {
          if (have === 0) { break inf_leave; }
          have--;
          hold += input[next++] << bits;
          bits += 8;
        }
        //===//
        state.offset += hold & ((1 << state.extra) -1)/*BITS(state.extra)*/;
        //--- DROPBITS(state.extra) ---//
        hold >>>= state.extra;
        bits -= state.extra;
        //---//
        state.back += state.extra;
      }
//#ifdef INFLATE_STRICT
      if (state.offset > state.dmax) {
        strm.msg = 'invalid distance too far back';
        state.mode = BAD;
        break;
      }
//#endif
      //Tracevv((stderr, "inflate:         distance %u\n", state.offset));
      state.mode = MATCH;
      /* falls through */
    case MATCH:
      if (left === 0) { break inf_leave; }
      copy = _out - left;
      if (state.offset > copy) {         /* copy from window */
        copy = state.offset - copy;
        if (copy > state.whave) {
          if (state.sane) {
            strm.msg = 'invalid distance too far back';
            state.mode = BAD;
            break;
          }
// (!) This block is disabled in zlib defailts,
// don't enable it for binary compatibility
//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
//          Trace((stderr, "inflate.c too far\n"));
//          copy -= state.whave;
//          if (copy > state.length) { copy = state.length; }
//          if (copy > left) { copy = left; }
//          left -= copy;
//          state.length -= copy;
//          do {
//            output[put++] = 0;
//          } while (--copy);
//          if (state.length === 0) { state.mode = LEN; }
//          break;
//#endif
        }
        if (copy > state.wnext) {
          copy -= state.wnext;
          from = state.wsize - copy;
        }
        else {
          from = state.wnext - copy;
        }
        if (copy > state.length) { copy = state.length; }
        from_source = state.window;
      }
      else {                              /* copy from output */
        from_source = output;
        from = put - state.offset;
        copy = state.length;
      }
      if (copy > left) { copy = left; }
      left -= copy;
      state.length -= copy;
      do {
        output[put++] = from_source[from++];
      } while (--copy);
      if (state.length === 0) { state.mode = LEN; }
      break;
    case LIT:
      if (left === 0) { break inf_leave; }
      output[put++] = state.length;
      left--;
      state.mode = LEN;
      break;
    case CHECK:
      if (state.wrap) {
        //=== NEEDBITS(32);
        while (bits < 32) {
          if (have === 0) { break inf_leave; }
          have--;
          // Use '|' insdead of '+' to make sure that result is signed
          hold |= input[next++] << bits;
          bits += 8;
        }
        //===//
        _out -= left;
        strm.total_out += _out;
        state.total += _out;
        if (_out) {
          strm.adler = state.check =
              /*UPDATE(state.check, put - _out, _out);*/
              (state.flags ? crc32(state.check, output, _out, put - _out) : adler32(state.check, output, _out, put - _out));

        }
        _out = left;
        // NB: crc32 stored as signed 32-bit int, ZSWAP32 returns signed too
        if ((state.flags ? hold : ZSWAP32(hold)) !== state.check) {
          strm.msg = 'incorrect data check';
          state.mode = BAD;
          break;
        }
        //=== INITBITS();
        hold = 0;
        bits = 0;
        //===//
        //Tracev((stderr, "inflate:   check matches trailer\n"));
      }
      state.mode = LENGTH;
      /* falls through */
    case LENGTH:
      if (state.wrap && state.flags) {
        //=== NEEDBITS(32);
        while (bits < 32) {
          if (have === 0) { break inf_leave; }
          have--;
          hold += input[next++] << bits;
          bits += 8;
        }
        //===//
        if (hold !== (state.total & 0xffffffff)) {
          strm.msg = 'incorrect length check';
          state.mode = BAD;
          break;
        }
        //=== INITBITS();
        hold = 0;
        bits = 0;
        //===//
        //Tracev((stderr, "inflate:   length matches trailer\n"));
      }
      state.mode = DONE;
      /* falls through */
    case DONE:
      ret = Z_STREAM_END;
      break inf_leave;
    case BAD:
      ret = Z_DATA_ERROR;
      break inf_leave;
    case MEM:
      return Z_MEM_ERROR;
    case SYNC:
      /* falls through */
    default:
      return Z_STREAM_ERROR;
    }
  }

  // inf_leave <- here is real place for "goto inf_leave", emulated via "break inf_leave"

  /*
     Return from inflate(), updating the total counts and the check value.
     If there was no progress during the inflate() call, return a buffer
     error.  Call updatewindow() to create and/or update the window state.
     Note: a memory error from inflate() is non-recoverable.
   */

  //--- RESTORE() ---
  strm.next_out = put;
  strm.avail_out = left;
  strm.next_in = next;
  strm.avail_in = have;
  state.hold = hold;
  state.bits = bits;
  //---

  if (state.wsize || (_out !== strm.avail_out && state.mode < BAD &&
                      (state.mode < CHECK || flush !== Z_FINISH))) {
    if (updatewindow(strm, strm.output, strm.next_out, _out - strm.avail_out)) {
      state.mode = MEM;
      return Z_MEM_ERROR;
    }
  }
  _in -= strm.avail_in;
  _out -= strm.avail_out;
  strm.total_in += _in;
  strm.total_out += _out;
  state.total += _out;
  if (state.wrap && _out) {
    strm.adler = state.check = /*UPDATE(state.check, strm.next_out - _out, _out);*/
      (state.flags ? crc32(state.check, output, _out, strm.next_out - _out) : adler32(state.check, output, _out, strm.next_out - _out));
  }
  strm.data_type = state.bits + (state.last ? 64 : 0) +
                    (state.mode === TYPE ? 128 : 0) +
                    (state.mode === LEN_ || state.mode === COPY_ ? 256 : 0);
  if (((_in === 0 && _out === 0) || flush === Z_FINISH) && ret === Z_OK) {
    ret = Z_BUF_ERROR;
  }
  return ret;
}

function inflateEnd(strm) {

  if (!strm || !strm.state /*|| strm->zfree == (free_func)0*/) {
    return Z_STREAM_ERROR;
  }

  var state = strm.state;
  if (state.window) {
    state.window = null;
  }
  strm.state = null;
  return Z_OK;
}

function inflateGetHeader(strm, head) {
  var state;

  /* check state */
  if (!strm || !strm.state) { return Z_STREAM_ERROR; }
  state = strm.state;
  if ((state.wrap & 2) === 0) { return Z_STREAM_ERROR; }

  /* save header structure */
  state.head = head;
  head.done = false;
  return Z_OK;
}


exports.inflateReset = inflateReset;
exports.inflateReset2 = inflateReset2;
exports.inflateResetKeep = inflateResetKeep;
exports.inflateInit = inflateInit;
exports.inflateInit2 = inflateInit2;
exports.inflate = inflate;
exports.inflateEnd = inflateEnd;
exports.inflateGetHeader = inflateGetHeader;
exports.inflateInfo = 'pako inflate (from Nodeca project)';

/* Not implemented
exports.inflateCopy = inflateCopy;
exports.inflateGetDictionary = inflateGetDictionary;
exports.inflateMark = inflateMark;
exports.inflatePrime = inflatePrime;
exports.inflateSetDictionary = inflateSetDictionary;
exports.inflateSync = inflateSync;
exports.inflateSyncPoint = inflateSyncPoint;
exports.inflateUndermine = inflateUndermine;
*/

},{"../utils/common":5,"./adler32":6,"./crc32":8,"./inffast":10,"./inftrees":12}],12:[function(require,module,exports){
'use strict';


var utils = require('../utils/common');

var MAXBITS = 15;
var ENOUGH_LENS = 852;
var ENOUGH_DISTS = 592;
//var ENOUGH = (ENOUGH_LENS+ENOUGH_DISTS);

var CODES = 0;
var LENS = 1;
var DISTS = 2;

var lbase = [ /* Length codes 257..285 base */
  3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
  35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0
];

var lext = [ /* Length codes 257..285 extra */
  16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
  19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 72, 78
];

var dbase = [ /* Distance codes 0..29 base */
  1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
  257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
  8193, 12289, 16385, 24577, 0, 0
];

var dext = [ /* Distance codes 0..29 extra */
  16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22,
  23, 23, 24, 24, 25, 25, 26, 26, 27, 27,
  28, 28, 29, 29, 64, 64
];

module.exports = function inflate_table(type, lens, lens_index, codes, table, table_index, work, opts)
{
  var bits = opts.bits;
      //here = opts.here; /* table entry for duplication */

  var len = 0;               /* a code's length in bits */
  var sym = 0;               /* index of code symbols */
  var min = 0, max = 0;          /* minimum and maximum code lengths */
  var root = 0;              /* number of index bits for root table */
  var curr = 0;              /* number of index bits for current table */
  var drop = 0;              /* code bits to drop for sub-table */
  var left = 0;                   /* number of prefix codes available */
  var used = 0;              /* code entries in table used */
  var huff = 0;              /* Huffman code */
  var incr;              /* for incrementing code, index */
  var fill;              /* index for replicating entries */
  var low;               /* low bits for current root entry */
  var mask;              /* mask for low root bits */
  var next;             /* next available space in table */
  var base = null;     /* base value table to use */
  var base_index = 0;
//  var shoextra;    /* extra bits table to use */
  var end;                    /* use base and extra for symbol > end */
  var count = new utils.Buf16(MAXBITS+1); //[MAXBITS+1];    /* number of codes of each length */
  var offs = new utils.Buf16(MAXBITS+1); //[MAXBITS+1];     /* offsets in table for each length */
  var extra = null;
  var extra_index = 0;

  var here_bits, here_op, here_val;

  /*
   Process a set of code lengths to create a canonical Huffman code.  The
   code lengths are lens[0..codes-1].  Each length corresponds to the
   symbols 0..codes-1.  The Huffman code is generated by first sorting the
   symbols by length from short to long, and retaining the symbol order
   for codes with equal lengths.  Then the code starts with all zero bits
   for the first code of the shortest length, and the codes are integer
   increments for the same length, and zeros are appended as the length
   increases.  For the deflate format, these bits are stored backwards
   from their more natural integer increment ordering, and so when the
   decoding tables are built in the large loop below, the integer codes
   are incremented backwards.

   This routine assumes, but does not check, that all of the entries in
   lens[] are in the range 0..MAXBITS.  The caller must assure this.
   1..MAXBITS is interpreted as that code length.  zero means that that
   symbol does not occur in this code.

   The codes are sorted by computing a count of codes for each length,
   creating from that a table of starting indices for each length in the
   sorted table, and then entering the symbols in order in the sorted
   table.  The sorted table is work[], with that space being provided by
   the caller.

   The length counts are used for other purposes as well, i.e. finding
   the minimum and maximum length codes, determining if there are any
   codes at all, checking for a valid set of lengths, and looking ahead
   at length counts to determine sub-table sizes when building the
   decoding tables.
   */

  /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
  for (len = 0; len <= MAXBITS; len++) {
    count[len] = 0;
  }
  for (sym = 0; sym < codes; sym++) {
    count[lens[lens_index + sym]]++;
  }

  /* bound code lengths, force root to be within code lengths */
  root = bits;
  for (max = MAXBITS; max >= 1; max--) {
    if (count[max] !== 0) { break; }
  }
  if (root > max) {
    root = max;
  }
  if (max === 0) {                     /* no symbols to code at all */
    //table.op[opts.table_index] = 64;  //here.op = (var char)64;    /* invalid code marker */
    //table.bits[opts.table_index] = 1;   //here.bits = (var char)1;
    //table.val[opts.table_index++] = 0;   //here.val = (var short)0;
    table[table_index++] = (1 << 24) | (64 << 16) | 0;


    //table.op[opts.table_index] = 64;
    //table.bits[opts.table_index] = 1;
    //table.val[opts.table_index++] = 0;
    table[table_index++] = (1 << 24) | (64 << 16) | 0;

    opts.bits = 1;
    return 0;     /* no symbols, but wait for decoding to report error */
  }
  for (min = 1; min < max; min++) {
    if (count[min] !== 0) { break; }
  }
  if (root < min) {
    root = min;
  }

  /* check for an over-subscribed or incomplete set of lengths */
  left = 1;
  for (len = 1; len <= MAXBITS; len++) {
    left <<= 1;
    left -= count[len];
    if (left < 0) {
      return -1;
    }        /* over-subscribed */
  }
  if (left > 0 && (type === CODES || max !== 1)) {
    return -1;                      /* incomplete set */
  }

  /* generate offsets into symbol table for each length for sorting */
  offs[1] = 0;
  for (len = 1; len < MAXBITS; len++) {
    offs[len + 1] = offs[len] + count[len];
  }

  /* sort symbols by length, by symbol order within each length */
  for (sym = 0; sym < codes; sym++) {
    if (lens[lens_index + sym] !== 0) {
      work[offs[lens[lens_index + sym]]++] = sym;
    }
  }

  /*
   Create and fill in decoding tables.  In this loop, the table being
   filled is at next and has curr index bits.  The code being used is huff
   with length len.  That code is converted to an index by dropping drop
   bits off of the bottom.  For codes where len is less than drop + curr,
   those top drop + curr - len bits are incremented through all values to
   fill the table with replicated entries.

   root is the number of index bits for the root table.  When len exceeds
   root, sub-tables are created pointed to by the root entry with an index
   of the low root bits of huff.  This is saved in low to check for when a
   new sub-table should be started.  drop is zero when the root table is
   being filled, and drop is root when sub-tables are being filled.

   When a new sub-table is needed, it is necessary to look ahead in the
   code lengths to determine what size sub-table is needed.  The length
   counts are used for this, and so count[] is decremented as codes are
   entered in the tables.

   used keeps track of how many table entries have been allocated from the
   provided *table space.  It is checked for LENS and DIST tables against
   the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
   the initial root table size constants.  See the comments in inftrees.h
   for more information.

   sym increments through all symbols, and the loop terminates when
   all codes of length max, i.e. all codes, have been processed.  This
   routine permits incomplete codes, so another loop after this one fills
   in the rest of the decoding tables with invalid code markers.
   */

  /* set up for code type */
  // poor man optimization - use if-else instead of switch,
  // to avoid deopts in old v8
  if (type === CODES) {
    base = extra = work;    /* dummy value--not used */
    end = 19;

  } else if (type === LENS) {
    base = lbase;
    base_index -= 257;
    extra = lext;
    extra_index -= 257;
    end = 256;

  } else {                    /* DISTS */
    base = dbase;
    extra = dext;
    end = -1;
  }

  /* initialize opts for loop */
  huff = 0;                   /* starting code */
  sym = 0;                    /* starting code symbol */
  len = min;                  /* starting code length */
  next = table_index;              /* current table to fill in */
  curr = root;                /* current table index bits */
  drop = 0;                   /* current bits to drop from code for index */
  low = -1;                   /* trigger new sub-table when len > root */
  used = 1 << root;          /* use root table entries */
  mask = used - 1;            /* mask for comparing low */

  /* check available table space */
  if ((type === LENS && used > ENOUGH_LENS) ||
    (type === DISTS && used > ENOUGH_DISTS)) {
    return 1;
  }

  var i=0;
  /* process all codes and make table entries */
  for (;;) {
    i++;
    /* create table entry */
    here_bits = len - drop;
    if (work[sym] < end) {
      here_op = 0;
      here_val = work[sym];
    }
    else if (work[sym] > end) {
      here_op = extra[extra_index + work[sym]];
      here_val = base[base_index + work[sym]];
    }
    else {
      here_op = 32 + 64;         /* end of block */
      here_val = 0;
    }

    /* replicate for those indices with low len bits equal to huff */
    incr = 1 << (len - drop);
    fill = 1 << curr;
    min = fill;                 /* save offset to next table */
    do {
      fill -= incr;
      table[next + (huff >> drop) + fill] = (here_bits << 24) | (here_op << 16) | here_val |0;
    } while (fill !== 0);

    /* backwards increment the len-bit code huff */
    incr = 1 << (len - 1);
    while (huff & incr) {
      incr >>= 1;
    }
    if (incr !== 0) {
      huff &= incr - 1;
      huff += incr;
    } else {
      huff = 0;
    }

    /* go to next symbol, update count, len */
    sym++;
    if (--count[len] === 0) {
      if (len === max) { break; }
      len = lens[lens_index + work[sym]];
    }

    /* create new sub-table if needed */
    if (len > root && (huff & mask) !== low) {
      /* if first time, transition to sub-tables */
      if (drop === 0) {
        drop = root;
      }

      /* increment past last table */
      next += min;            /* here min is 1 << curr */

      /* determine length of next table */
      curr = len - drop;
      left = 1 << curr;
      while (curr + drop < max) {
        left -= count[curr + drop];
        if (left <= 0) { break; }
        curr++;
        left <<= 1;
      }

      /* check for enough space */
      used += 1 << curr;
      if ((type === LENS && used > ENOUGH_LENS) ||
        (type === DISTS && used > ENOUGH_DISTS)) {
        return 1;
      }

      /* point entry in root table to sub-table */
      low = huff & mask;
      /*table.op[low] = curr;
      table.bits[low] = root;
      table.val[low] = next - opts.table_index;*/
      table[low] = (root << 24) | (curr << 16) | (next - table_index) |0;
    }
  }

  /* fill in remaining table entry if code is incomplete (guaranteed to have
   at most one remaining entry, since if the code is incomplete, the
   maximum code length that was allowed to get this far is one bit) */
  if (huff !== 0) {
    //table.op[next + huff] = 64;            /* invalid code marker */
    //table.bits[next + huff] = len - drop;
    //table.val[next + huff] = 0;
    table[next + huff] = ((len - drop) << 24) | (64 << 16) |0;
  }

  /* set return parameters */
  //opts.table_index += used;
  opts.bits = root;
  return 0;
};

},{"../utils/common":5}],13:[function(require,module,exports){
'use strict';

module.exports = {
  '2':    'need dictionary',     /* Z_NEED_DICT       2  */
  '1':    'stream end',          /* Z_STREAM_END      1  */
  '0':    '',                    /* Z_OK              0  */
  '-1':   'file error',          /* Z_ERRNO         (-1) */
  '-2':   'stream error',        /* Z_STREAM_ERROR  (-2) */
  '-3':   'data error',          /* Z_DATA_ERROR    (-3) */
  '-4':   'insufficient memory', /* Z_MEM_ERROR     (-4) */
  '-5':   'buffer error',        /* Z_BUF_ERROR     (-5) */
  '-6':   'incompatible version' /* Z_VERSION_ERROR (-6) */
};

},{}],14:[function(require,module,exports){
'use strict';


var utils = require('../utils/common');

/* Public constants ==========================================================*/
/* ===========================================================================*/


//var Z_FILTERED          = 1;
//var Z_HUFFMAN_ONLY      = 2;
//var Z_RLE               = 3;
var Z_FIXED               = 4;
//var Z_DEFAULT_STRATEGY  = 0;

/* Possible values of the data_type field (though see inflate()) */
var Z_BINARY              = 0;
var Z_TEXT                = 1;
//var Z_ASCII             = 1; // = Z_TEXT
var Z_UNKNOWN             = 2;

/*============================================================================*/


function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } }

// From zutil.h

var STORED_BLOCK = 0;
var STATIC_TREES = 1;
var DYN_TREES    = 2;
/* The three kinds of block type */

var MIN_MATCH    = 3;
var MAX_MATCH    = 258;
/* The minimum and maximum match lengths */

// From deflate.h
/* ===========================================================================
 * Internal compression state.
 */

var LENGTH_CODES  = 29;
/* number of length codes, not counting the special END_BLOCK code */

var LITERALS      = 256;
/* number of literal bytes 0..255 */

var L_CODES       = LITERALS + 1 + LENGTH_CODES;
/* number of Literal or Length codes, including the END_BLOCK code */

var D_CODES       = 30;
/* number of distance codes */

var BL_CODES      = 19;
/* number of codes used to transfer the bit lengths */

var HEAP_SIZE     = 2*L_CODES + 1;
/* maximum heap size */

var MAX_BITS      = 15;
/* All codes must not exceed MAX_BITS bits */

var Buf_size      = 16;
/* size of bit buffer in bi_buf */


/* ===========================================================================
 * Constants
 */

var MAX_BL_BITS = 7;
/* Bit length codes must not exceed MAX_BL_BITS bits */

var END_BLOCK   = 256;
/* end of block literal code */

var REP_3_6     = 16;
/* repeat previous bit length 3-6 times (2 bits of repeat count) */

var REPZ_3_10   = 17;
/* repeat a zero length 3-10 times  (3 bits of repeat count) */

var REPZ_11_138 = 18;
/* repeat a zero length 11-138 times  (7 bits of repeat count) */

var extra_lbits =   /* extra bits for each length code */
  [0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0];

var extra_dbits =   /* extra bits for each distance code */
  [0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13];

var extra_blbits =  /* extra bits for each bit length code */
  [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7];

var bl_order =
  [16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15];
/* The lengths of the bit length codes are sent in order of decreasing
 * probability, to avoid transmitting the lengths for unused bit length codes.
 */

/* ===========================================================================
 * Local data. These are initialized only once.
 */

// We pre-fill arrays with 0 to avoid uninitialized gaps

var DIST_CODE_LEN = 512; /* see definition of array dist_code below */

// !!!! Use flat array insdead of structure, Freq = i*2, Len = i*2+1
var static_ltree  = new Array((L_CODES+2) * 2);
zero(static_ltree);
/* The static literal tree. Since the bit lengths are imposed, there is no
 * need for the L_CODES extra codes used during heap construction. However
 * The codes 286 and 287 are needed to build a canonical tree (see _tr_init
 * below).
 */

var static_dtree  = new Array(D_CODES * 2);
zero(static_dtree);
/* The static distance tree. (Actually a trivial tree since all codes use
 * 5 bits.)
 */

var _dist_code    = new Array(DIST_CODE_LEN);
zero(_dist_code);
/* Distance codes. The first 256 values correspond to the distances
 * 3 .. 258, the last 256 values correspond to the top 8 bits of
 * the 15 bit distances.
 */

var _length_code  = new Array(MAX_MATCH-MIN_MATCH+1);
zero(_length_code);
/* length code for each normalized match length (0 == MIN_MATCH) */

var base_length   = new Array(LENGTH_CODES);
zero(base_length);
/* First normalized length for each code (0 = MIN_MATCH) */

var base_dist     = new Array(D_CODES);
zero(base_dist);
/* First normalized distance for each code (0 = distance of 1) */


var StaticTreeDesc = function (static_tree, extra_bits, extra_base, elems, max_length) {

  this.static_tree  = static_tree;  /* static tree or NULL */
  this.extra_bits   = extra_bits;   /* extra bits for each code or NULL */
  this.extra_base   = extra_base;   /* base index for extra_bits */
  this.elems        = elems;        /* max number of elements in the tree */
  this.max_length   = max_length;   /* max bit length for the codes */

  // show if `static_tree` has data or dummy - needed for monomorphic objects
  this.has_stree    = static_tree && static_tree.length;
};


var static_l_desc;
var static_d_desc;
var static_bl_desc;


var TreeDesc = function(dyn_tree, stat_desc) {
  this.dyn_tree = dyn_tree;     /* the dynamic tree */
  this.max_code = 0;            /* largest code with non zero frequency */
  this.stat_desc = stat_desc;   /* the corresponding static tree */
};



function d_code(dist) {
  return dist < 256 ? _dist_code[dist] : _dist_code[256 + (dist >>> 7)];
}


/* ===========================================================================
 * Output a short LSB first on the stream.
 * IN assertion: there is enough room in pendingBuf.
 */
function put_short (s, w) {
//    put_byte(s, (uch)((w) & 0xff));
//    put_byte(s, (uch)((ush)(w) >> 8));
  s.pending_buf[s.pending++] = (w) & 0xff;
  s.pending_buf[s.pending++] = (w >>> 8) & 0xff;
}


/* ===========================================================================
 * Send a value on a given number of bits.
 * IN assertion: length <= 16 and value fits in length bits.
 */
function send_bits(s, value, length) {
  if (s.bi_valid > (Buf_size - length)) {
    s.bi_buf |= (value << s.bi_valid) & 0xffff;
    put_short(s, s.bi_buf);
    s.bi_buf = value >> (Buf_size - s.bi_valid);
    s.bi_valid += length - Buf_size;
  } else {
    s.bi_buf |= (value << s.bi_valid) & 0xffff;
    s.bi_valid += length;
  }
}


function send_code(s, c, tree) {
  send_bits(s, tree[c*2]/*.Code*/, tree[c*2 + 1]/*.Len*/);
}


/* ===========================================================================
 * Reverse the first len bits of a code, using straightforward code (a faster
 * method would use a table)
 * IN assertion: 1 <= len <= 15
 */
function bi_reverse(code, len) {
  var res = 0;
  do {
    res |= code & 1;
    code >>>= 1;
    res <<= 1;
  } while (--len > 0);
  return res >>> 1;
}


/* ===========================================================================
 * Flush the bit buffer, keeping at most 7 bits in it.
 */
function bi_flush(s) {
  if (s.bi_valid === 16) {
    put_short(s, s.bi_buf);
    s.bi_buf = 0;
    s.bi_valid = 0;

  } else if (s.bi_valid >= 8) {
    s.pending_buf[s.pending++] = s.bi_buf & 0xff;
    s.bi_buf >>= 8;
    s.bi_valid -= 8;
  }
}


/* ===========================================================================
 * Compute the optimal bit lengths for a tree and update the total bit length
 * for the current block.
 * IN assertion: the fields freq and dad are set, heap[heap_max] and
 *    above are the tree nodes sorted by increasing frequency.
 * OUT assertions: the field len is set to the optimal bit length, the
 *     array bl_count contains the frequencies for each bit length.
 *     The length opt_len is updated; static_len is also updated if stree is
 *     not null.
 */
function gen_bitlen(s, desc)
//    deflate_state *s;
//    tree_desc *desc;    /* the tree descriptor */
{
  var tree            = desc.dyn_tree;
  var max_code        = desc.max_code;
  var stree           = desc.stat_desc.static_tree;
  var has_stree       = desc.stat_desc.has_stree;
  var extra           = desc.stat_desc.extra_bits;
  var base            = desc.stat_desc.extra_base;
  var max_length      = desc.stat_desc.max_length;
  var h;              /* heap index */
  var n, m;           /* iterate over the tree elements */
  var bits;           /* bit length */
  var xbits;          /* extra bits */
  var f;              /* frequency */
  var overflow = 0;   /* number of elements with bit length too large */

  for (bits = 0; bits <= MAX_BITS; bits++) {
    s.bl_count[bits] = 0;
  }

  /* In a first pass, compute the optimal bit lengths (which may
   * overflow in the case of the bit length tree).
   */
  tree[s.heap[s.heap_max]*2 + 1]/*.Len*/ = 0; /* root of the heap */

  for (h = s.heap_max+1; h < HEAP_SIZE; h++) {
    n = s.heap[h];
    bits = tree[tree[n*2 +1]/*.Dad*/ * 2 + 1]/*.Len*/ + 1;
    if (bits > max_length) {
      bits = max_length;
      overflow++;
    }
    tree[n*2 + 1]/*.Len*/ = bits;
    /* We overwrite tree[n].Dad which is no longer needed */

    if (n > max_code) { continue; } /* not a leaf node */

    s.bl_count[bits]++;
    xbits = 0;
    if (n >= base) {
      xbits = extra[n-base];
    }
    f = tree[n * 2]/*.Freq*/;
    s.opt_len += f * (bits + xbits);
    if (has_stree) {
      s.static_len += f * (stree[n*2 + 1]/*.Len*/ + xbits);
    }
  }
  if (overflow === 0) { return; }

  // Trace((stderr,"\nbit length overflow\n"));
  /* This happens for example on obj2 and pic of the Calgary corpus */

  /* Find the first bit length which could increase: */
  do {
    bits = max_length-1;
    while (s.bl_count[bits] === 0) { bits--; }
    s.bl_count[bits]--;      /* move one leaf down the tree */
    s.bl_count[bits+1] += 2; /* move one overflow item as its brother */
    s.bl_count[max_length]--;
    /* The brother of the overflow item also moves one step up,
     * but this does not affect bl_count[max_length]
     */
    overflow -= 2;
  } while (overflow > 0);

  /* Now recompute all bit lengths, scanning in increasing frequency.
   * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
   * lengths instead of fixing only the wrong ones. This idea is taken
   * from 'ar' written by Haruhiko Okumura.)
   */
  for (bits = max_length; bits !== 0; bits--) {
    n = s.bl_count[bits];
    while (n !== 0) {
      m = s.heap[--h];
      if (m > max_code) { continue; }
      if (tree[m*2 + 1]/*.Len*/ !== bits) {
        // Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
        s.opt_len += (bits - tree[m*2 + 1]/*.Len*/)*tree[m*2]/*.Freq*/;
        tree[m*2 + 1]/*.Len*/ = bits;
      }
      n--;
    }
  }
}


/* ===========================================================================
 * Generate the codes for a given tree and bit counts (which need not be
 * optimal).
 * IN assertion: the array bl_count contains the bit length statistics for
 * the given tree and the field len is set for all tree elements.
 * OUT assertion: the field code is set for all tree elements of non
 *     zero code length.
 */
function gen_codes(tree, max_code, bl_count)
//    ct_data *tree;             /* the tree to decorate */
//    int max_code;              /* largest code with non zero frequency */
//    ushf *bl_count;            /* number of codes at each bit length */
{
  var next_code = new Array(MAX_BITS+1); /* next code value for each bit length */
  var code = 0;              /* running code value */
  var bits;                  /* bit index */
  var n;                     /* code index */

  /* The distribution counts are first used to generate the code values
   * without bit reversal.
   */
  for (bits = 1; bits <= MAX_BITS; bits++) {
    next_code[bits] = code = (code + bl_count[bits-1]) << 1;
  }
  /* Check that the bit counts in bl_count are consistent. The last code
   * must be all ones.
   */
  //Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
  //        "inconsistent bit counts");
  //Tracev((stderr,"\ngen_codes: max_code %d ", max_code));

  for (n = 0;  n <= max_code; n++) {
    var len = tree[n*2 + 1]/*.Len*/;
    if (len === 0) { continue; }
    /* Now reverse the bits */
    tree[n*2]/*.Code*/ = bi_reverse(next_code[len]++, len);

    //Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
    //     n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
  }
}


/* ===========================================================================
 * Initialize the various 'constant' tables.
 */
function tr_static_init() {
  var n;        /* iterates over tree elements */
  var bits;     /* bit counter */
  var length;   /* length value */
  var code;     /* code value */
  var dist;     /* distance index */
  var bl_count = new Array(MAX_BITS+1);
  /* number of codes at each bit length for an optimal tree */

  // do check in _tr_init()
  //if (static_init_done) return;

  /* For some embedded targets, global variables are not initialized: */
/*#ifdef NO_INIT_GLOBAL_POINTERS
  static_l_desc.static_tree = static_ltree;
  static_l_desc.extra_bits = extra_lbits;
  static_d_desc.static_tree = static_dtree;
  static_d_desc.extra_bits = extra_dbits;
  static_bl_desc.extra_bits = extra_blbits;
#endif*/

  /* Initialize the mapping length (0..255) -> length code (0..28) */
  length = 0;
  for (code = 0; code < LENGTH_CODES-1; code++) {
    base_length[code] = length;
    for (n = 0; n < (1<<extra_lbits[code]); n++) {
      _length_code[length++] = code;
    }
  }
  //Assert (length == 256, "tr_static_init: length != 256");
  /* Note that the length 255 (match length 258) can be represented
   * in two different ways: code 284 + 5 bits or code 285, so we
   * overwrite length_code[255] to use the best encoding:
   */
  _length_code[length-1] = code;

  /* Initialize the mapping dist (0..32K) -> dist code (0..29) */
  dist = 0;
  for (code = 0 ; code < 16; code++) {
    base_dist[code] = dist;
    for (n = 0; n < (1<<extra_dbits[code]); n++) {
      _dist_code[dist++] = code;
    }
  }
  //Assert (dist == 256, "tr_static_init: dist != 256");
  dist >>= 7; /* from now on, all distances are divided by 128 */
  for (; code < D_CODES; code++) {
    base_dist[code] = dist << 7;
    for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) {
      _dist_code[256 + dist++] = code;
    }
  }
  //Assert (dist == 256, "tr_static_init: 256+dist != 512");

  /* Construct the codes of the static literal tree */
  for (bits = 0; bits <= MAX_BITS; bits++) {
    bl_count[bits] = 0;
  }

  n = 0;
  while (n <= 143) {
    static_ltree[n*2 + 1]/*.Len*/ = 8;
    n++;
    bl_count[8]++;
  }
  while (n <= 255) {
    static_ltree[n*2 + 1]/*.Len*/ = 9;
    n++;
    bl_count[9]++;
  }
  while (n <= 279) {
    static_ltree[n*2 + 1]/*.Len*/ = 7;
    n++;
    bl_count[7]++;
  }
  while (n <= 287) {
    static_ltree[n*2 + 1]/*.Len*/ = 8;
    n++;
    bl_count[8]++;
  }
  /* Codes 286 and 287 do not exist, but we must include them in the
   * tree construction to get a canonical Huffman tree (longest code
   * all ones)
   */
  gen_codes(static_ltree, L_CODES+1, bl_count);

  /* The static distance tree is trivial: */
  for (n = 0; n < D_CODES; n++) {
    static_dtree[n*2 + 1]/*.Len*/ = 5;
    static_dtree[n*2]/*.Code*/ = bi_reverse(n, 5);
  }

  // Now data ready and we can init static trees
  static_l_desc = new StaticTreeDesc(static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS);
  static_d_desc = new StaticTreeDesc(static_dtree, extra_dbits, 0,          D_CODES, MAX_BITS);
  static_bl_desc =new StaticTreeDesc(new Array(0), extra_blbits, 0,         BL_CODES, MAX_BL_BITS);

  //static_init_done = true;
}


/* ===========================================================================
 * Initialize a new block.
 */
function init_block(s) {
  var n; /* iterates over tree elements */

  /* Initialize the trees. */
  for (n = 0; n < L_CODES;  n++) { s.dyn_ltree[n*2]/*.Freq*/ = 0; }
  for (n = 0; n < D_CODES;  n++) { s.dyn_dtree[n*2]/*.Freq*/ = 0; }
  for (n = 0; n < BL_CODES; n++) { s.bl_tree[n*2]/*.Freq*/ = 0; }

  s.dyn_ltree[END_BLOCK*2]/*.Freq*/ = 1;
  s.opt_len = s.static_len = 0;
  s.last_lit = s.matches = 0;
}


/* ===========================================================================
 * Flush the bit buffer and align the output on a byte boundary
 */
function bi_windup(s)
{
  if (s.bi_valid > 8) {
    put_short(s, s.bi_buf);
  } else if (s.bi_valid > 0) {
    //put_byte(s, (Byte)s->bi_buf);
    s.pending_buf[s.pending++] = s.bi_buf;
  }
  s.bi_buf = 0;
  s.bi_valid = 0;
}

/* ===========================================================================
 * Copy a stored block, storing first the length and its
 * one's complement if requested.
 */
function copy_block(s, buf, len, header)
//DeflateState *s;
//charf    *buf;    /* the input data */
//unsigned len;     /* its length */
//int      header;  /* true if block header must be written */
{
  bi_windup(s);        /* align on byte boundary */

  if (header) {
    put_short(s, len);
    put_short(s, ~len);
  }
//  while (len--) {
//    put_byte(s, *buf++);
//  }
  utils.arraySet(s.pending_buf, s.window, buf, len, s.pending);
  s.pending += len;
}

/* ===========================================================================
 * Compares to subtrees, using the tree depth as tie breaker when
 * the subtrees have equal frequency. This minimizes the worst case length.
 */
function smaller(tree, n, m, depth) {
  var _n2 = n*2;
  var _m2 = m*2;
  return (tree[_n2]/*.Freq*/ < tree[_m2]/*.Freq*/ ||
         (tree[_n2]/*.Freq*/ === tree[_m2]/*.Freq*/ && depth[n] <= depth[m]));
}

/* ===========================================================================
 * Restore the heap property by moving down the tree starting at node k,
 * exchanging a node with the smallest of its two sons if necessary, stopping
 * when the heap property is re-established (each father smaller than its
 * two sons).
 */
function pqdownheap(s, tree, k)
//    deflate_state *s;
//    ct_data *tree;  /* the tree to restore */
//    int k;               /* node to move down */
{
  var v = s.heap[k];
  var j = k << 1;  /* left son of k */
  while (j <= s.heap_len) {
    /* Set j to the smallest of the two sons: */
    if (j < s.heap_len &&
      smaller(tree, s.heap[j+1], s.heap[j], s.depth)) {
      j++;
    }
    /* Exit if v is smaller than both sons */
    if (smaller(tree, v, s.heap[j], s.depth)) { break; }

    /* Exchange v with the smallest son */
    s.heap[k] = s.heap[j];
    k = j;

    /* And continue down the tree, setting j to the left son of k */
    j <<= 1;
  }
  s.heap[k] = v;
}


// inlined manually
// var SMALLEST = 1;

/* ===========================================================================
 * Send the block data compressed using the given Huffman trees
 */
function compress_block(s, ltree, dtree)
//    deflate_state *s;
//    const ct_data *ltree; /* literal tree */
//    const ct_data *dtree; /* distance tree */
{
  var dist;           /* distance of matched string */
  var lc;             /* match length or unmatched char (if dist == 0) */
  var lx = 0;         /* running index in l_buf */
  var code;           /* the code to send */
  var extra;          /* number of extra bits to send */

  if (s.last_lit !== 0) {
    do {
      dist = (s.pending_buf[s.d_buf + lx*2] << 8) | (s.pending_buf[s.d_buf + lx*2 + 1]);
      lc = s.pending_buf[s.l_buf + lx];
      lx++;

      if (dist === 0) {
        send_code(s, lc, ltree); /* send a literal byte */
        //Tracecv(isgraph(lc), (stderr," '%c' ", lc));
      } else {
        /* Here, lc is the match length - MIN_MATCH */
        code = _length_code[lc];
        send_code(s, code+LITERALS+1, ltree); /* send the length code */
        extra = extra_lbits[code];
        if (extra !== 0) {
          lc -= base_length[code];
          send_bits(s, lc, extra);       /* send the extra length bits */
        }
        dist--; /* dist is now the match distance - 1 */
        code = d_code(dist);
        //Assert (code < D_CODES, "bad d_code");

        send_code(s, code, dtree);       /* send the distance code */
        extra = extra_dbits[code];
        if (extra !== 0) {
          dist -= base_dist[code];
          send_bits(s, dist, extra);   /* send the extra distance bits */
        }
      } /* literal or match pair ? */

      /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */
      //Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx,
      //       "pendingBuf overflow");

    } while (lx < s.last_lit);
  }

  send_code(s, END_BLOCK, ltree);
}


/* ===========================================================================
 * Construct one Huffman tree and assigns the code bit strings and lengths.
 * Update the total bit length for the current block.
 * IN assertion: the field freq is set for all tree elements.
 * OUT assertions: the fields len and code are set to the optimal bit length
 *     and corresponding code. The length opt_len is updated; static_len is
 *     also updated if stree is not null. The field max_code is set.
 */
function build_tree(s, desc)
//    deflate_state *s;
//    tree_desc *desc; /* the tree descriptor */
{
  var tree     = desc.dyn_tree;
  var stree    = desc.stat_desc.static_tree;
  var has_stree = desc.stat_desc.has_stree;
  var elems    = desc.stat_desc.elems;
  var n, m;          /* iterate over heap elements */
  var max_code = -1; /* largest code with non zero frequency */
  var node;          /* new node being created */

  /* Construct the initial heap, with least frequent element in
   * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
   * heap[0] is not used.
   */
  s.heap_len = 0;
  s.heap_max = HEAP_SIZE;

  for (n = 0; n < elems; n++) {
    if (tree[n * 2]/*.Freq*/ !== 0) {
      s.heap[++s.heap_len] = max_code = n;
      s.depth[n] = 0;

    } else {
      tree[n*2 + 1]/*.Len*/ = 0;
    }
  }

  /* The pkzip format requires that at least one distance code exists,
   * and that at least one bit should be sent even if there is only one
   * possible code. So to avoid special checks later on we force at least
   * two codes of non zero frequency.
   */
  while (s.heap_len < 2) {
    node = s.heap[++s.heap_len] = (max_code < 2 ? ++max_code : 0);
    tree[node * 2]/*.Freq*/ = 1;
    s.depth[node] = 0;
    s.opt_len--;

    if (has_stree) {
      s.static_len -= stree[node*2 + 1]/*.Len*/;
    }
    /* node is 0 or 1 so it does not have extra bits */
  }
  desc.max_code = max_code;

  /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
   * establish sub-heaps of increasing lengths:
   */
  for (n = (s.heap_len >> 1/*int /2*/); n >= 1; n--) { pqdownheap(s, tree, n); }

  /* Construct the Huffman tree by repeatedly combining the least two
   * frequent nodes.
   */
  node = elems;              /* next internal node of the tree */
  do {
    //pqremove(s, tree, n);  /* n = node of least frequency */
    /*** pqremove ***/
    n = s.heap[1/*SMALLEST*/];
    s.heap[1/*SMALLEST*/] = s.heap[s.heap_len--];
    pqdownheap(s, tree, 1/*SMALLEST*/);
    /***/

    m = s.heap[1/*SMALLEST*/]; /* m = node of next least frequency */

    s.heap[--s.heap_max] = n; /* keep the nodes sorted by frequency */
    s.heap[--s.heap_max] = m;

    /* Create a new node father of n and m */
    tree[node * 2]/*.Freq*/ = tree[n * 2]/*.Freq*/ + tree[m * 2]/*.Freq*/;
    s.depth[node] = (s.depth[n] >= s.depth[m] ? s.depth[n] : s.depth[m]) + 1;
    tree[n*2 + 1]/*.Dad*/ = tree[m*2 + 1]/*.Dad*/ = node;

    /* and insert the new node in the heap */
    s.heap[1/*SMALLEST*/] = node++;
    pqdownheap(s, tree, 1/*SMALLEST*/);

  } while (s.heap_len >= 2);

  s.heap[--s.heap_max] = s.heap[1/*SMALLEST*/];

  /* At this point, the fields freq and dad are set. We can now
   * generate the bit lengths.
   */
  gen_bitlen(s, desc);

  /* The field len is now set, we can generate the bit codes */
  gen_codes(tree, max_code, s.bl_count);
}


/* ===========================================================================
 * Scan a literal or distance tree to determine the frequencies of the codes
 * in the bit length tree.
 */
function scan_tree(s, tree, max_code)
//    deflate_state *s;
//    ct_data *tree;   /* the tree to be scanned */
//    int max_code;    /* and its largest code of non zero frequency */
{
  var n;                     /* iterates over all tree elements */
  var prevlen = -1;          /* last emitted length */
  var curlen;                /* length of current code */

  var nextlen = tree[0*2 + 1]/*.Len*/; /* length of next code */

  var count = 0;             /* repeat count of the current code */
  var max_count = 7;         /* max repeat count */
  var min_count = 4;         /* min repeat count */

  if (nextlen === 0) {
    max_count = 138;
    min_count = 3;
  }
  tree[(max_code+1)*2 + 1]/*.Len*/ = 0xffff; /* guard */

  for (n = 0; n <= max_code; n++) {
    curlen = nextlen;
    nextlen = tree[(n+1)*2 + 1]/*.Len*/;

    if (++count < max_count && curlen === nextlen) {
      continue;

    } else if (count < min_count) {
      s.bl_tree[curlen * 2]/*.Freq*/ += count;

    } else if (curlen !== 0) {

      if (curlen !== prevlen) { s.bl_tree[curlen * 2]/*.Freq*/++; }
      s.bl_tree[REP_3_6*2]/*.Freq*/++;

    } else if (count <= 10) {
      s.bl_tree[REPZ_3_10*2]/*.Freq*/++;

    } else {
      s.bl_tree[REPZ_11_138*2]/*.Freq*/++;
    }

    count = 0;
    prevlen = curlen;

    if (nextlen === 0) {
      max_count = 138;
      min_count = 3;

    } else if (curlen === nextlen) {
      max_count = 6;
      min_count = 3;

    } else {
      max_count = 7;
      min_count = 4;
    }
  }
}


/* ===========================================================================
 * Send a literal or distance tree in compressed form, using the codes in
 * bl_tree.
 */
function send_tree(s, tree, max_code)
//    deflate_state *s;
//    ct_data *tree; /* the tree to be scanned */
//    int max_code;       /* and its largest code of non zero frequency */
{
  var n;                     /* iterates over all tree elements */
  var prevlen = -1;          /* last emitted length */
  var curlen;                /* length of current code */

  var nextlen = tree[0*2 + 1]/*.Len*/; /* length of next code */

  var count = 0;             /* repeat count of the current code */
  var max_count = 7;         /* max repeat count */
  var min_count = 4;         /* min repeat count */

  /* tree[max_code+1].Len = -1; */  /* guard already set */
  if (nextlen === 0) {
    max_count = 138;
    min_count = 3;
  }

  for (n = 0; n <= max_code; n++) {
    curlen = nextlen;
    nextlen = tree[(n+1)*2 + 1]/*.Len*/;

    if (++count < max_count && curlen === nextlen) {
      continue;

    } else if (count < min_count) {
      do { send_code(s, curlen, s.bl_tree); } while (--count !== 0);

    } else if (curlen !== 0) {
      if (curlen !== prevlen) {
        send_code(s, curlen, s.bl_tree);
        count--;
      }
      //Assert(count >= 3 && count <= 6, " 3_6?");
      send_code(s, REP_3_6, s.bl_tree);
      send_bits(s, count-3, 2);

    } else if (count <= 10) {
      send_code(s, REPZ_3_10, s.bl_tree);
      send_bits(s, count-3, 3);

    } else {
      send_code(s, REPZ_11_138, s.bl_tree);
      send_bits(s, count-11, 7);
    }

    count = 0;
    prevlen = curlen;
    if (nextlen === 0) {
      max_count = 138;
      min_count = 3;

    } else if (curlen === nextlen) {
      max_count = 6;
      min_count = 3;

    } else {
      max_count = 7;
      min_count = 4;
    }
  }
}


/* ===========================================================================
 * Construct the Huffman tree for the bit lengths and return the index in
 * bl_order of the last bit length code to send.
 */
function build_bl_tree(s) {
  var max_blindex;  /* index of last bit length code of non zero freq */

  /* Determine the bit length frequencies for literal and distance trees */
  scan_tree(s, s.dyn_ltree, s.l_desc.max_code);
  scan_tree(s, s.dyn_dtree, s.d_desc.max_code);

  /* Build the bit length tree: */
  build_tree(s, s.bl_desc);
  /* opt_len now includes the length of the tree representations, except
   * the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
   */

  /* Determine the number of bit length codes to send. The pkzip format
   * requires that at least 4 bit length codes be sent. (appnote.txt says
   * 3 but the actual value used is 4.)
   */
  for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) {
    if (s.bl_tree[bl_order[max_blindex]*2 + 1]/*.Len*/ !== 0) {
      break;
    }
  }
  /* Update opt_len to include the bit length tree and counts */
  s.opt_len += 3*(max_blindex+1) + 5+5+4;
  //Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld",
  //        s->opt_len, s->static_len));

  return max_blindex;
}


/* ===========================================================================
 * Send the header for a block using dynamic Huffman trees: the counts, the
 * lengths of the bit length codes, the literal tree and the distance tree.
 * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
 */
function send_all_trees(s, lcodes, dcodes, blcodes)
//    deflate_state *s;
//    int lcodes, dcodes, blcodes; /* number of codes for each tree */
{
  var rank;                    /* index in bl_order */

  //Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
  //Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
  //        "too many codes");
  //Tracev((stderr, "\nbl counts: "));
  send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */
  send_bits(s, dcodes-1,   5);
  send_bits(s, blcodes-4,  4); /* not -3 as stated in appnote.txt */
  for (rank = 0; rank < blcodes; rank++) {
    //Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
    send_bits(s, s.bl_tree[bl_order[rank]*2 + 1]/*.Len*/, 3);
  }
  //Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent));

  send_tree(s, s.dyn_ltree, lcodes-1); /* literal tree */
  //Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent));

  send_tree(s, s.dyn_dtree, dcodes-1); /* distance tree */
  //Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent));
}


/* ===========================================================================
 * Check if the data type is TEXT or BINARY, using the following algorithm:
 * - TEXT if the two conditions below are satisfied:
 *    a) There are no non-portable control characters belonging to the
 *       "black list" (0..6, 14..25, 28..31).
 *    b) There is at least one printable character belonging to the
 *       "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255).
 * - BINARY otherwise.
 * - The following partially-portable control characters form a
 *   "gray list" that is ignored in this detection algorithm:
 *   (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}).
 * IN assertion: the fields Freq of dyn_ltree are set.
 */
function detect_data_type(s) {
  /* black_mask is the bit mask of black-listed bytes
   * set bits 0..6, 14..25, and 28..31
   * 0xf3ffc07f = binary 11110011111111111100000001111111
   */
  var black_mask = 0xf3ffc07f;
  var n;

  /* Check for non-textual ("black-listed") bytes. */
  for (n = 0; n <= 31; n++, black_mask >>>= 1) {
    if ((black_mask & 1) && (s.dyn_ltree[n*2]/*.Freq*/ !== 0)) {
      return Z_BINARY;
    }
  }

  /* Check for textual ("white-listed") bytes. */
  if (s.dyn_ltree[9 * 2]/*.Freq*/ !== 0 || s.dyn_ltree[10 * 2]/*.Freq*/ !== 0 ||
      s.dyn_ltree[13 * 2]/*.Freq*/ !== 0) {
    return Z_TEXT;
  }
  for (n = 32; n < LITERALS; n++) {
    if (s.dyn_ltree[n * 2]/*.Freq*/ !== 0) {
      return Z_TEXT;
    }
  }

  /* There are no "black-listed" or "white-listed" bytes:
   * this stream either is empty or has tolerated ("gray-listed") bytes only.
   */
  return Z_BINARY;
}


var static_init_done = false;

/* ===========================================================================
 * Initialize the tree data structures for a new zlib stream.
 */
function _tr_init(s)
{

  if (!static_init_done) {
    tr_static_init();
    static_init_done = true;
  }

  s.l_desc  = new TreeDesc(s.dyn_ltree, static_l_desc);
  s.d_desc  = new TreeDesc(s.dyn_dtree, static_d_desc);
  s.bl_desc = new TreeDesc(s.bl_tree, static_bl_desc);

  s.bi_buf = 0;
  s.bi_valid = 0;

  /* Initialize the first block of the first file: */
  init_block(s);
}


/* ===========================================================================
 * Send a stored block
 */
function _tr_stored_block(s, buf, stored_len, last)
//DeflateState *s;
//charf *buf;       /* input block */
//ulg stored_len;   /* length of input block */
//int last;         /* one if this is the last block for a file */
{
  send_bits(s, (STORED_BLOCK<<1)+(last ? 1 : 0), 3);    /* send block type */
  copy_block(s, buf, stored_len, true); /* with header */
}


/* ===========================================================================
 * Send one empty static block to give enough lookahead for inflate.
 * This takes 10 bits, of which 7 may remain in the bit buffer.
 */
function _tr_align(s) {
  send_bits(s, STATIC_TREES<<1, 3);
  send_code(s, END_BLOCK, static_ltree);
  bi_flush(s);
}


/* ===========================================================================
 * Determine the best encoding for the current block: dynamic trees, static
 * trees or store, and output the encoded block to the zip file.
 */
function _tr_flush_block(s, buf, stored_len, last)
//DeflateState *s;
//charf *buf;       /* input block, or NULL if too old */
//ulg stored_len;   /* length of input block */
//int last;         /* one if this is the last block for a file */
{
  var opt_lenb, static_lenb;  /* opt_len and static_len in bytes */
  var max_blindex = 0;        /* index of last bit length code of non zero freq */

  /* Build the Huffman trees unless a stored block is forced */
  if (s.level > 0) {

    /* Check if the file is binary or text */
    if (s.strm.data_type === Z_UNKNOWN) {
      s.strm.data_type = detect_data_type(s);
    }

    /* Construct the literal and distance trees */
    build_tree(s, s.l_desc);
    // Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len,
    //        s->static_len));

    build_tree(s, s.d_desc);
    // Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len,
    //        s->static_len));
    /* At this point, opt_len and static_len are the total bit lengths of
     * the compressed block data, excluding the tree representations.
     */

    /* Build the bit length tree for the above two trees, and get the index
     * in bl_order of the last bit length code to send.
     */
    max_blindex = build_bl_tree(s);

    /* Determine the best encoding. Compute the block lengths in bytes. */
    opt_lenb = (s.opt_len+3+7) >>> 3;
    static_lenb = (s.static_len+3+7) >>> 3;

    // Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
    //        opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
    //        s->last_lit));

    if (static_lenb <= opt_lenb) { opt_lenb = static_lenb; }

  } else {
    // Assert(buf != (char*)0, "lost buf");
    opt_lenb = static_lenb = stored_len + 5; /* force a stored block */
  }

  if ((stored_len+4 <= opt_lenb) && (buf !== -1)) {
    /* 4: two words for the lengths */

    /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
     * Otherwise we can't have processed more than WSIZE input bytes since
     * the last block flush, because compression would have been
     * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
     * transform a block into a stored block.
     */
    _tr_stored_block(s, buf, stored_len, last);

  } else if (s.strategy === Z_FIXED || static_lenb === opt_lenb) {

    send_bits(s, (STATIC_TREES<<1) + (last ? 1 : 0), 3);
    compress_block(s, static_ltree, static_dtree);

  } else {
    send_bits(s, (DYN_TREES<<1) + (last ? 1 : 0), 3);
    send_all_trees(s, s.l_desc.max_code+1, s.d_desc.max_code+1, max_blindex+1);
    compress_block(s, s.dyn_ltree, s.dyn_dtree);
  }
  // Assert (s->compressed_len == s->bits_sent, "bad compressed size");
  /* The above check is made mod 2^32, for files larger than 512 MB
   * and uLong implemented on 32 bits.
   */
  init_block(s);

  if (last) {
    bi_windup(s);
  }
  // Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3,
  //       s->compressed_len-7*last));
}

/* ===========================================================================
 * Save the match info and tally the frequency counts. Return true if
 * the current block must be flushed.
 */
function _tr_tally(s, dist, lc)
//    deflate_state *s;
//    unsigned dist;  /* distance of matched string */
//    unsigned lc;    /* match length-MIN_MATCH or unmatched char (if dist==0) */
{
  //var out_length, in_length, dcode;

  s.pending_buf[s.d_buf + s.last_lit * 2]     = (dist >>> 8) & 0xff;
  s.pending_buf[s.d_buf + s.last_lit * 2 + 1] = dist & 0xff;

  s.pending_buf[s.l_buf + s.last_lit] = lc & 0xff;
  s.last_lit++;

  if (dist === 0) {
    /* lc is the unmatched char */
    s.dyn_ltree[lc*2]/*.Freq*/++;
  } else {
    s.matches++;
    /* Here, lc is the match length - MIN_MATCH */
    dist--;             /* dist = match distance - 1 */
    //Assert((ush)dist < (ush)MAX_DIST(s) &&
    //       (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
    //       (ush)d_code(dist) < (ush)D_CODES,  "_tr_tally: bad match");

    s.dyn_ltree[(_length_code[lc]+LITERALS+1) * 2]/*.Freq*/++;
    s.dyn_dtree[d_code(dist) * 2]/*.Freq*/++;
  }

// (!) This block is disabled in zlib defailts,
// don't enable it for binary compatibility

//#ifdef TRUNCATE_BLOCK
//  /* Try to guess if it is profitable to stop the current block here */
//  if ((s.last_lit & 0x1fff) === 0 && s.level > 2) {
//    /* Compute an upper bound for the compressed length */
//    out_length = s.last_lit*8;
//    in_length = s.strstart - s.block_start;
//
//    for (dcode = 0; dcode < D_CODES; dcode++) {
//      out_length += s.dyn_dtree[dcode*2]/*.Freq*/ * (5 + extra_dbits[dcode]);
//    }
//    out_length >>>= 3;
//    //Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ",
//    //       s->last_lit, in_length, out_length,
//    //       100L - out_length*100L/in_length));
//    if (s.matches < (s.last_lit>>1)/*int /2*/ && out_length < (in_length>>1)/*int /2*/) {
//      return true;
//    }
//  }
//#endif

  return (s.last_lit === s.lit_bufsize-1);
  /* We avoid equality with lit_bufsize because of wraparound at 64K
   * on 16 bit machines and because stored blocks are restricted to
   * 64K-1 bytes.
   */
}

exports._tr_init  = _tr_init;
exports._tr_stored_block = _tr_stored_block;
exports._tr_flush_block  = _tr_flush_block;
exports._tr_tally = _tr_tally;
exports._tr_align = _tr_align;

},{"../utils/common":5}],15:[function(require,module,exports){
'use strict';


function ZStream() {
  /* next input byte */
  this.input = null; // JS specific, because we have no pointers
  this.next_in = 0;
  /* number of bytes available at input */
  this.avail_in = 0;
  /* total number of input bytes read so far */
  this.total_in = 0;
  /* next output byte should be put there */
  this.output = null; // JS specific, because we have no pointers
  this.next_out = 0;
  /* remaining free space at output */
  this.avail_out = 0;
  /* total number of bytes output so far */
  this.total_out = 0;
  /* last error message, NULL if no error */
  this.msg = ''/*Z_NULL*/;
  /* not visible by applications */
  this.state = null;
  /* best guess about the data type: binary or text */
  this.data_type = 2/*Z_UNKNOWN*/;
  /* adler32 value of the uncompressed data */
  this.adler = 0;
}

module.exports = ZStream;

},{}],16:[function(require,module,exports){
(function (process,Buffer){
var msg = require('pako/lib/zlib/messages');
var zstream = require('pako/lib/zlib/zstream');
var zlib_deflate = require('pako/lib/zlib/deflate.js');
var zlib_inflate = require('pako/lib/zlib/inflate.js');
var constants = require('pako/lib/zlib/constants');

for (var key in constants) {
  exports[key] = constants[key];
}

// zlib modes
exports.NONE = 0;
exports.DEFLATE = 1;
exports.INFLATE = 2;
exports.GZIP = 3;
exports.GUNZIP = 4;
exports.DEFLATERAW = 5;
exports.INFLATERAW = 6;
exports.UNZIP = 7;

/**
 * Emulate Node's zlib C++ layer for use by the JS layer in index.js
 */
function Zlib(mode) {
  if (mode < exports.DEFLATE || mode > exports.UNZIP)
    throw new TypeError("Bad argument");
    
  this.mode = mode;
  this.init_done = false;
  this.write_in_progress = false;
  this.pending_close = false;
  this.windowBits = 0;
  this.level = 0;
  this.memLevel = 0;
  this.strategy = 0;
  this.dictionary = null;
}

Zlib.prototype.init = function(windowBits, level, memLevel, strategy, dictionary) {
  this.windowBits = windowBits;
  this.level = level;
  this.memLevel = memLevel;
  this.strategy = strategy;
  // dictionary not supported.
  
  if (this.mode === exports.GZIP || this.mode === exports.GUNZIP)
    this.windowBits += 16;
    
  if (this.mode === exports.UNZIP)
    this.windowBits += 32;
    
  if (this.mode === exports.DEFLATERAW || this.mode === exports.INFLATERAW)
    this.windowBits = -this.windowBits;
    
  this.strm = new zstream();
  
  switch (this.mode) {
    case exports.DEFLATE:
    case exports.GZIP:
    case exports.DEFLATERAW:
      var status = zlib_deflate.deflateInit2(
        this.strm,
        this.level,
        exports.Z_DEFLATED,
        this.windowBits,
        this.memLevel,
        this.strategy
      );
      break;
    case exports.INFLATE:
    case exports.GUNZIP:
    case exports.INFLATERAW:
    case exports.UNZIP:
      var status  = zlib_inflate.inflateInit2(
        this.strm,
        this.windowBits
      );
      break;
    default:
      throw new Error("Unknown mode " + this.mode);
  }
  
  if (status !== exports.Z_OK) {
    this._error(status);
    return;
  }
  
  this.write_in_progress = false;
  this.init_done = true;
};

Zlib.prototype.params = function() {
  throw new Error("deflateParams Not supported");
};

Zlib.prototype._writeCheck = function() {
  if (!this.init_done)
    throw new Error("write before init");
    
  if (this.mode === exports.NONE)
    throw new Error("already finalized");
    
  if (this.write_in_progress)
    throw new Error("write already in progress");
    
  if (this.pending_close)
    throw new Error("close is pending");
};

Zlib.prototype.write = function(flush, input, in_off, in_len, out, out_off, out_len) {    
  this._writeCheck();
  this.write_in_progress = true;
  
  var self = this;
  process.nextTick(function() {
    self.write_in_progress = false;
    var res = self._write(flush, input, in_off, in_len, out, out_off, out_len);
    self.callback(res[0], res[1]);
    
    if (self.pending_close)
      self.close();
  });
  
  return this;
};

// set method for Node buffers, used by pako
function bufferSet(data, offset) {
  for (var i = 0; i < data.length; i++) {
    this[offset + i] = data[i];
  }
}

Zlib.prototype.writeSync = function(flush, input, in_off, in_len, out, out_off, out_len) {
  this._writeCheck();
  return this._write(flush, input, in_off, in_len, out, out_off, out_len);
};

Zlib.prototype._write = function(flush, input, in_off, in_len, out, out_off, out_len) {
  this.write_in_progress = true;
  
  if (flush !== exports.Z_NO_FLUSH &&
      flush !== exports.Z_PARTIAL_FLUSH &&
      flush !== exports.Z_SYNC_FLUSH &&
      flush !== exports.Z_FULL_FLUSH &&
      flush !== exports.Z_FINISH &&
      flush !== exports.Z_BLOCK) {
    throw new Error("Invalid flush value");
  }
  
  if (input == null) {
    input = new Buffer(0);
    in_len = 0;
    in_off = 0;
  }
  
  if (out._set)
    out.set = out._set;
  else
    out.set = bufferSet;
  
  var strm = this.strm;
  strm.avail_in = in_len;
  strm.input = input;
  strm.next_in = in_off;
  strm.avail_out = out_len;
  strm.output = out;
  strm.next_out = out_off;
  
  switch (this.mode) {
    case exports.DEFLATE:
    case exports.GZIP:
    case exports.DEFLATERAW:
      var status = zlib_deflate.deflate(strm, flush);
      break;
    case exports.UNZIP:
    case exports.INFLATE:
    case exports.GUNZIP:
    case exports.INFLATERAW:
      var status = zlib_inflate.inflate(strm, flush);
      break;
    default:
      throw new Error("Unknown mode " + this.mode);
  }
  
  if (status !== exports.Z_STREAM_END && status !== exports.Z_OK) {
    this._error(status);
  }
  
  this.write_in_progress = false;
  return [strm.avail_in, strm.avail_out];
};

Zlib.prototype.close = function() {
  if (this.write_in_progress) {
    this.pending_close = true;
    return;
  }
  
  this.pending_close = false;
  
  if (this.mode === exports.DEFLATE || this.mode === exports.GZIP || this.mode === exports.DEFLATERAW) {
    zlib_deflate.deflateEnd(this.strm);
  } else {
    zlib_inflate.inflateEnd(this.strm);
  }
  
  this.mode = exports.NONE;
};

Zlib.prototype.reset = function() {
  switch (this.mode) {
    case exports.DEFLATE:
    case exports.DEFLATERAW:
      var status = zlib_deflate.deflateReset(this.strm);
      break;
    case exports.INFLATE:
    case exports.INFLATERAW:
      var status = zlib_inflate.inflateReset(this.strm);
      break;
  }
  
  if (status !== exports.Z_OK) {
    this._error(status);
  }
};

Zlib.prototype._error = function(status) {
  this.onerror(msg[status] + ': ' + this.strm.msg, status);
  
  this.write_in_progress = false;
  if (this.pending_close)
    this.close();
};

exports.Zlib = Zlib;

}).call(this,require('_process'),require("buffer").Buffer)
},{"_process":215,"buffer":18,"pako/lib/zlib/constants":7,"pako/lib/zlib/deflate.js":9,"pako/lib/zlib/inflate.js":11,"pako/lib/zlib/messages":13,"pako/lib/zlib/zstream":15}],17:[function(require,module,exports){
(function (process,Buffer){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var Transform = require('_stream_transform');

var binding = require('./binding');
var util = require('util');
var assert = require('assert').ok;

// zlib doesn't provide these, so kludge them in following the same
// const naming scheme zlib uses.
binding.Z_MIN_WINDOWBITS = 8;
binding.Z_MAX_WINDOWBITS = 15;
binding.Z_DEFAULT_WINDOWBITS = 15;

// fewer than 64 bytes per chunk is stupid.
// technically it could work with as few as 8, but even 64 bytes
// is absurdly low.  Usually a MB or more is best.
binding.Z_MIN_CHUNK = 64;
binding.Z_MAX_CHUNK = Infinity;
binding.Z_DEFAULT_CHUNK = (16 * 1024);

binding.Z_MIN_MEMLEVEL = 1;
binding.Z_MAX_MEMLEVEL = 9;
binding.Z_DEFAULT_MEMLEVEL = 8;

binding.Z_MIN_LEVEL = -1;
binding.Z_MAX_LEVEL = 9;
binding.Z_DEFAULT_LEVEL = binding.Z_DEFAULT_COMPRESSION;

// expose all the zlib constants
Object.keys(binding).forEach(function(k) {
  if (k.match(/^Z/)) exports[k] = binding[k];
});

// translation table for return codes.
exports.codes = {
  Z_OK: binding.Z_OK,
  Z_STREAM_END: binding.Z_STREAM_END,
  Z_NEED_DICT: binding.Z_NEED_DICT,
  Z_ERRNO: binding.Z_ERRNO,
  Z_STREAM_ERROR: binding.Z_STREAM_ERROR,
  Z_DATA_ERROR: binding.Z_DATA_ERROR,
  Z_MEM_ERROR: binding.Z_MEM_ERROR,
  Z_BUF_ERROR: binding.Z_BUF_ERROR,
  Z_VERSION_ERROR: binding.Z_VERSION_ERROR
};

Object.keys(exports.codes).forEach(function(k) {
  exports.codes[exports.codes[k]] = k;
});

exports.Deflate = Deflate;
exports.Inflate = Inflate;
exports.Gzip = Gzip;
exports.Gunzip = Gunzip;
exports.DeflateRaw = DeflateRaw;
exports.InflateRaw = InflateRaw;
exports.Unzip = Unzip;

exports.createDeflate = function(o) {
  return new Deflate(o);
};

exports.createInflate = function(o) {
  return new Inflate(o);
};

exports.createDeflateRaw = function(o) {
  return new DeflateRaw(o);
};

exports.createInflateRaw = function(o) {
  return new InflateRaw(o);
};

exports.createGzip = function(o) {
  return new Gzip(o);
};

exports.createGunzip = function(o) {
  return new Gunzip(o);
};

exports.createUnzip = function(o) {
  return new Unzip(o);
};


// Convenience methods.
// compress/decompress a string or buffer in one step.
exports.deflate = function(buffer, opts, callback) {
  if (typeof opts === 'function') {
    callback = opts;
    opts = {};
  }
  return zlibBuffer(new Deflate(opts), buffer, callback);
};

exports.deflateSync = function(buffer, opts) {
  return zlibBufferSync(new Deflate(opts), buffer);
};

exports.gzip = function(buffer, opts, callback) {
  if (typeof opts === 'function') {
    callback = opts;
    opts = {};
  }
  return zlibBuffer(new Gzip(opts), buffer, callback);
};

exports.gzipSync = function(buffer, opts) {
  return zlibBufferSync(new Gzip(opts), buffer);
};

exports.deflateRaw = function(buffer, opts, callback) {
  if (typeof opts === 'function') {
    callback = opts;
    opts = {};
  }
  return zlibBuffer(new DeflateRaw(opts), buffer, callback);
};

exports.deflateRawSync = function(buffer, opts) {
  return zlibBufferSync(new DeflateRaw(opts), buffer);
};

exports.unzip = function(buffer, opts, callback) {
  if (typeof opts === 'function') {
    callback = opts;
    opts = {};
  }
  return zlibBuffer(new Unzip(opts), buffer, callback);
};

exports.unzipSync = function(buffer, opts) {
  return zlibBufferSync(new Unzip(opts), buffer);
};

exports.inflate = function(buffer, opts, callback) {
  if (typeof opts === 'function') {
    callback = opts;
    opts = {};
  }
  return zlibBuffer(new Inflate(opts), buffer, callback);
};

exports.inflateSync = function(buffer, opts) {
  return zlibBufferSync(new Inflate(opts), buffer);
};

exports.gunzip = function(buffer, opts, callback) {
  if (typeof opts === 'function') {
    callback = opts;
    opts = {};
  }
  return zlibBuffer(new Gunzip(opts), buffer, callback);
};

exports.gunzipSync = function(buffer, opts) {
  return zlibBufferSync(new Gunzip(opts), buffer);
};

exports.inflateRaw = function(buffer, opts, callback) {
  if (typeof opts === 'function') {
    callback = opts;
    opts = {};
  }
  return zlibBuffer(new InflateRaw(opts), buffer, callback);
};

exports.inflateRawSync = function(buffer, opts) {
  return zlibBufferSync(new InflateRaw(opts), buffer);
};

function zlibBuffer(engine, buffer, callback) {
  var buffers = [];
  var nread = 0;

  engine.on('error', onError);
  engine.on('end', onEnd);

  engine.end(buffer);
  flow();

  function flow() {
    var chunk;
    while (null !== (chunk = engine.read())) {
      buffers.push(chunk);
      nread += chunk.length;
    }
    engine.once('readable', flow);
  }

  function onError(err) {
    engine.removeListener('end', onEnd);
    engine.removeListener('readable', flow);
    callback(err);
  }

  function onEnd() {
    var buf = Buffer.concat(buffers, nread);
    buffers = [];
    callback(null, buf);
    engine.close();
  }
}

function zlibBufferSync(engine, buffer) {
  if (typeof buffer === 'string')
    buffer = new Buffer(buffer);
  if (!Buffer.isBuffer(buffer))
    throw new TypeError('Not a string or buffer');

  var flushFlag = binding.Z_FINISH;

  return engine._processChunk(buffer, flushFlag);
}

// generic zlib
// minimal 2-byte header
function Deflate(opts) {
  if (!(this instanceof Deflate)) return new Deflate(opts);
  Zlib.call(this, opts, binding.DEFLATE);
}

function Inflate(opts) {
  if (!(this instanceof Inflate)) return new Inflate(opts);
  Zlib.call(this, opts, binding.INFLATE);
}



// gzip - bigger header, same deflate compression
function Gzip(opts) {
  if (!(this instanceof Gzip)) return new Gzip(opts);
  Zlib.call(this, opts, binding.GZIP);
}

function Gunzip(opts) {
  if (!(this instanceof Gunzip)) return new Gunzip(opts);
  Zlib.call(this, opts, binding.GUNZIP);
}



// raw - no header
function DeflateRaw(opts) {
  if (!(this instanceof DeflateRaw)) return new DeflateRaw(opts);
  Zlib.call(this, opts, binding.DEFLATERAW);
}

function InflateRaw(opts) {
  if (!(this instanceof InflateRaw)) return new InflateRaw(opts);
  Zlib.call(this, opts, binding.INFLATERAW);
}


// auto-detect header.
function Unzip(opts) {
  if (!(this instanceof Unzip)) return new Unzip(opts);
  Zlib.call(this, opts, binding.UNZIP);
}


// the Zlib class they all inherit from
// This thing manages the queue of requests, and returns
// true or false if there is anything in the queue when
// you call the .write() method.

function Zlib(opts, mode) {
  this._opts = opts = opts || {};
  this._chunkSize = opts.chunkSize || exports.Z_DEFAULT_CHUNK;

  Transform.call(this, opts);

  if (opts.flush) {
    if (opts.flush !== binding.Z_NO_FLUSH &&
        opts.flush !== binding.Z_PARTIAL_FLUSH &&
        opts.flush !== binding.Z_SYNC_FLUSH &&
        opts.flush !== binding.Z_FULL_FLUSH &&
        opts.flush !== binding.Z_FINISH &&
        opts.flush !== binding.Z_BLOCK) {
      throw new Error('Invalid flush flag: ' + opts.flush);
    }
  }
  this._flushFlag = opts.flush || binding.Z_NO_FLUSH;

  if (opts.chunkSize) {
    if (opts.chunkSize < exports.Z_MIN_CHUNK ||
        opts.chunkSize > exports.Z_MAX_CHUNK) {
      throw new Error('Invalid chunk size: ' + opts.chunkSize);
    }
  }

  if (opts.windowBits) {
    if (opts.windowBits < exports.Z_MIN_WINDOWBITS ||
        opts.windowBits > exports.Z_MAX_WINDOWBITS) {
      throw new Error('Invalid windowBits: ' + opts.windowBits);
    }
  }

  if (opts.level) {
    if (opts.level < exports.Z_MIN_LEVEL ||
        opts.level > exports.Z_MAX_LEVEL) {
      throw new Error('Invalid compression level: ' + opts.level);
    }
  }

  if (opts.memLevel) {
    if (opts.memLevel < exports.Z_MIN_MEMLEVEL ||
        opts.memLevel > exports.Z_MAX_MEMLEVEL) {
      throw new Error('Invalid memLevel: ' + opts.memLevel);
    }
  }

  if (opts.strategy) {
    if (opts.strategy != exports.Z_FILTERED &&
        opts.strategy != exports.Z_HUFFMAN_ONLY &&
        opts.strategy != exports.Z_RLE &&
        opts.strategy != exports.Z_FIXED &&
        opts.strategy != exports.Z_DEFAULT_STRATEGY) {
      throw new Error('Invalid strategy: ' + opts.strategy);
    }
  }

  if (opts.dictionary) {
    if (!Buffer.isBuffer(opts.dictionary)) {
      throw new Error('Invalid dictionary: it should be a Buffer instance');
    }
  }

  this._binding = new binding.Zlib(mode);

  var self = this;
  this._hadError = false;
  this._binding.onerror = function(message, errno) {
    // there is no way to cleanly recover.
    // continuing only obscures problems.
    self._binding = null;
    self._hadError = true;

    var error = new Error(message);
    error.errno = errno;
    error.code = exports.codes[errno];
    self.emit('error', error);
  };

  var level = exports.Z_DEFAULT_COMPRESSION;
  if (typeof opts.level === 'number') level = opts.level;

  var strategy = exports.Z_DEFAULT_STRATEGY;
  if (typeof opts.strategy === 'number') strategy = opts.strategy;

  this._binding.init(opts.windowBits || exports.Z_DEFAULT_WINDOWBITS,
                     level,
                     opts.memLevel || exports.Z_DEFAULT_MEMLEVEL,
                     strategy,
                     opts.dictionary);

  this._buffer = new Buffer(this._chunkSize);
  this._offset = 0;
  this._closed = false;
  this._level = level;
  this._strategy = strategy;

  this.once('end', this.close);
}

util.inherits(Zlib, Transform);

Zlib.prototype.params = function(level, strategy, callback) {
  if (level < exports.Z_MIN_LEVEL ||
      level > exports.Z_MAX_LEVEL) {
    throw new RangeError('Invalid compression level: ' + level);
  }
  if (strategy != exports.Z_FILTERED &&
      strategy != exports.Z_HUFFMAN_ONLY &&
      strategy != exports.Z_RLE &&
      strategy != exports.Z_FIXED &&
      strategy != exports.Z_DEFAULT_STRATEGY) {
    throw new TypeError('Invalid strategy: ' + strategy);
  }

  if (this._level !== level || this._strategy !== strategy) {
    var self = this;
    this.flush(binding.Z_SYNC_FLUSH, function() {
      self._binding.params(level, strategy);
      if (!self._hadError) {
        self._level = level;
        self._strategy = strategy;
        if (callback) callback();
      }
    });
  } else {
    process.nextTick(callback);
  }
};

Zlib.prototype.reset = function() {
  return this._binding.reset();
};

// This is the _flush function called by the transform class,
// internally, when the last chunk has been written.
Zlib.prototype._flush = function(callback) {
  this._transform(new Buffer(0), '', callback);
};

Zlib.prototype.flush = function(kind, callback) {
  var ws = this._writableState;

  if (typeof kind === 'function' || (kind === void 0 && !callback)) {
    callback = kind;
    kind = binding.Z_FULL_FLUSH;
  }

  if (ws.ended) {
    if (callback)
      process.nextTick(callback);
  } else if (ws.ending) {
    if (callback)
      this.once('end', callback);
  } else if (ws.needDrain) {
    var self = this;
    this.once('drain', function() {
      self.flush(callback);
    });
  } else {
    this._flushFlag = kind;
    this.write(new Buffer(0), '', callback);
  }
};

Zlib.prototype.close = function(callback) {
  if (callback)
    process.nextTick(callback);

  if (this._closed)
    return;

  this._closed = true;

  this._binding.close();

  var self = this;
  process.nextTick(function() {
    self.emit('close');
  });
};

Zlib.prototype._transform = function(chunk, encoding, cb) {
  var flushFlag;
  var ws = this._writableState;
  var ending = ws.ending || ws.ended;
  var last = ending && (!chunk || ws.length === chunk.length);

  if (!chunk === null && !Buffer.isBuffer(chunk))
    return cb(new Error('invalid input'));

  // If it's the last chunk, or a final flush, we use the Z_FINISH flush flag.
  // If it's explicitly flushing at some other time, then we use
  // Z_FULL_FLUSH. Otherwise, use Z_NO_FLUSH for maximum compression
  // goodness.
  if (last)
    flushFlag = binding.Z_FINISH;
  else {
    flushFlag = this._flushFlag;
    // once we've flushed the last of the queue, stop flushing and
    // go back to the normal behavior.
    if (chunk.length >= ws.length) {
      this._flushFlag = this._opts.flush || binding.Z_NO_FLUSH;
    }
  }

  var self = this;
  this._processChunk(chunk, flushFlag, cb);
};

Zlib.prototype._processChunk = function(chunk, flushFlag, cb) {
  var availInBefore = chunk && chunk.length;
  var availOutBefore = this._chunkSize - this._offset;
  var inOff = 0;

  var self = this;

  var async = typeof cb === 'function';

  if (!async) {
    var buffers = [];
    var nread = 0;

    var error;
    this.on('error', function(er) {
      error = er;
    });

    do {
      var res = this._binding.writeSync(flushFlag,
                                        chunk, // in
                                        inOff, // in_off
                                        availInBefore, // in_len
                                        this._buffer, // out
                                        this._offset, //out_off
                                        availOutBefore); // out_len
    } while (!this._hadError && callback(res[0], res[1]));

    if (this._hadError) {
      throw error;
    }

    var buf = Buffer.concat(buffers, nread);
    this.close();

    return buf;
  }

  var req = this._binding.write(flushFlag,
                                chunk, // in
                                inOff, // in_off
                                availInBefore, // in_len
                                this._buffer, // out
                                this._offset, //out_off
                                availOutBefore); // out_len

  req.buffer = chunk;
  req.callback = callback;

  function callback(availInAfter, availOutAfter) {
    if (self._hadError)
      return;

    var have = availOutBefore - availOutAfter;
    assert(have >= 0, 'have should not go down');

    if (have > 0) {
      var out = self._buffer.slice(self._offset, self._offset + have);
      self._offset += have;
      // serve some output to the consumer.
      if (async) {
        self.push(out);
      } else {
        buffers.push(out);
        nread += out.length;
      }
    }

    // exhausted the output buffer, or used all the input create a new one.
    if (availOutAfter === 0 || self._offset >= self._chunkSize) {
      availOutBefore = self._chunkSize;
      self._offset = 0;
      self._buffer = new Buffer(self._chunkSize);
    }

    if (availOutAfter === 0) {
      // Not actually done.  Need to reprocess.
      // Also, update the availInBefore to the availInAfter value,
      // so that if we have to hit it a third (fourth, etc.) time,
      // it'll have the correct byte counts.
      inOff += (availInBefore - availInAfter);
      availInBefore = availInAfter;

      if (!async)
        return true;

      var newReq = self._binding.write(flushFlag,
                                       chunk,
                                       inOff,
                                       availInBefore,
                                       self._buffer,
                                       self._offset,
                                       self._chunkSize);
      newReq.callback = callback; // this same function
      newReq.buffer = chunk;
      return;
    }

    if (!async)
      return false;

    // finished with the chunk.
    cb();
  }
};

util.inherits(Deflate, Zlib);
util.inherits(Inflate, Zlib);
util.inherits(Gzip, Zlib);
util.inherits(Gunzip, Zlib);
util.inherits(DeflateRaw, Zlib);
util.inherits(InflateRaw, Zlib);
util.inherits(Unzip, Zlib);

}).call(this,require('_process'),require("buffer").Buffer)
},{"./binding":16,"_process":215,"_stream_transform":231,"assert":3,"buffer":18,"util":247}],18:[function(require,module,exports){
(function (global){
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */

var base64 = require('base64-js')
var ieee754 = require('ieee754')
var isArray = require('is-array')

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50
Buffer.poolSize = 8192 // not used by this implementation

var rootParent = {}

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Use Object implementation (most compatible, even IE6)
 *
 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
 * Opera 11.6+, iOS 4.2+.
 *
 * Due to various browser bugs, sometimes the Object implementation will be used even
 * when the browser supports typed arrays.
 *
 * Note:
 *
 *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
 *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
 *
 *   - Safari 5-7 lacks support for changing the `Object.prototype.constructor` property
 *     on objects.
 *
 *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
 *
 *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
 *     incorrect length in some situations.

 * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
 * get the Object implementation, which is slower but behaves correctly.
 */
Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
  ? global.TYPED_ARRAY_SUPPORT
  : typedArraySupport()

function typedArraySupport () {
  function Bar () {}
  try {
    var arr = new Uint8Array(1)
    arr.foo = function () { return 42 }
    arr.constructor = Bar
    return arr.foo() === 42 && // typed array instances can be augmented
        arr.constructor === Bar && // constructor can be set
        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
  } catch (e) {
    return false
  }
}

function kMaxLength () {
  return Buffer.TYPED_ARRAY_SUPPORT
    ? 0x7fffffff
    : 0x3fffffff
}

/**
 * Class: Buffer
 * =============
 *
 * The Buffer constructor returns instances of `Uint8Array` that are augmented
 * with function properties for all the node `Buffer` API functions. We use
 * `Uint8Array` so that square bracket notation works as expected -- it returns
 * a single octet.
 *
 * By augmenting the instances, we can avoid modifying the `Uint8Array`
 * prototype.
 */
function Buffer (arg) {
  if (!(this instanceof Buffer)) {
    // Avoid going through an ArgumentsAdaptorTrampoline in the common case.
    if (arguments.length > 1) return new Buffer(arg, arguments[1])
    return new Buffer(arg)
  }

  this.length = 0
  this.parent = undefined

  // Common case.
  if (typeof arg === 'number') {
    return fromNumber(this, arg)
  }

  // Slightly less common case.
  if (typeof arg === 'string') {
    return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8')
  }

  // Unusual.
  return fromObject(this, arg)
}

function fromNumber (that, length) {
  that = allocate(that, length < 0 ? 0 : checked(length) | 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) {
    for (var i = 0; i < length; i++) {
      that[i] = 0
    }
  }
  return that
}

function fromString (that, string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8'

  // Assumption: byteLength() return value is always < kMaxLength.
  var length = byteLength(string, encoding) | 0
  that = allocate(that, length)

  that.write(string, encoding)
  return that
}

function fromObject (that, object) {
  if (Buffer.isBuffer(object)) return fromBuffer(that, object)

  if (isArray(object)) return fromArray(that, object)

  if (object == null) {
    throw new TypeError('must start with number, buffer, array or string')
  }

  if (typeof ArrayBuffer !== 'undefined') {
    if (object.buffer instanceof ArrayBuffer) {
      return fromTypedArray(that, object)
    }
    if (object instanceof ArrayBuffer) {
      return fromArrayBuffer(that, object)
    }
  }

  if (object.length) return fromArrayLike(that, object)

  return fromJsonObject(that, object)
}

function fromBuffer (that, buffer) {
  var length = checked(buffer.length) | 0
  that = allocate(that, length)
  buffer.copy(that, 0, 0, length)
  return that
}

function fromArray (that, array) {
  var length = checked(array.length) | 0
  that = allocate(that, length)
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

// Duplicate of fromArray() to keep fromArray() monomorphic.
function fromTypedArray (that, array) {
  var length = checked(array.length) | 0
  that = allocate(that, length)
  // Truncating the elements is probably not what people expect from typed
  // arrays with BYTES_PER_ELEMENT > 1 but it's compatible with the behavior
  // of the old Buffer constructor.
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

function fromArrayBuffer (that, array) {
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    array.byteLength
    that = Buffer._augment(new Uint8Array(array))
  } else {
    // Fallback: Return an object instance of the Buffer class
    that = fromTypedArray(that, new Uint8Array(array))
  }
  return that
}

function fromArrayLike (that, array) {
  var length = checked(array.length) | 0
  that = allocate(that, length)
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

// Deserialize { type: 'Buffer', data: [1,2,3,...] } into a Buffer object.
// Returns a zero-length buffer for inputs that don't conform to the spec.
function fromJsonObject (that, object) {
  var array
  var length = 0

  if (object.type === 'Buffer' && isArray(object.data)) {
    array = object.data
    length = checked(array.length) | 0
  }
  that = allocate(that, length)

  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

if (Buffer.TYPED_ARRAY_SUPPORT) {
  Buffer.prototype.__proto__ = Uint8Array.prototype
  Buffer.__proto__ = Uint8Array
}

function allocate (that, length) {
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    that = Buffer._augment(new Uint8Array(length))
    that.__proto__ = Buffer.prototype
  } else {
    // Fallback: Return an object instance of the Buffer class
    that.length = length
    that._isBuffer = true
  }

  var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1
  if (fromPool) that.parent = rootParent

  return that
}

function checked (length) {
  // Note: cannot use `length < kMaxLength` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= kMaxLength()) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + kMaxLength().toString(16) + ' bytes')
  }
  return length | 0
}

function SlowBuffer (subject, encoding) {
  if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding)

  var buf = new Buffer(subject, encoding)
  delete buf.parent
  return buf
}

Buffer.isBuffer = function isBuffer (b) {
  return !!(b != null && b._isBuffer)
}

Buffer.compare = function compare (a, b) {
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError('Arguments must be Buffers')
  }

  if (a === b) return 0

  var x = a.length
  var y = b.length

  var i = 0
  var len = Math.min(x, y)
  while (i < len) {
    if (a[i] !== b[i]) break

    ++i
  }

  if (i !== len) {
    x = a[i]
    y = b[i]
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

Buffer.isEncoding = function isEncoding (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'binary':
    case 'base64':
    case 'raw':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.concat = function concat (list, length) {
  if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.')

  if (list.length === 0) {
    return new Buffer(0)
  }

  var i
  if (length === undefined) {
    length = 0
    for (i = 0; i < list.length; i++) {
      length += list[i].length
    }
  }

  var buf = new Buffer(length)
  var pos = 0
  for (i = 0; i < list.length; i++) {
    var item = list[i]
    item.copy(buf, pos)
    pos += item.length
  }
  return buf
}

function byteLength (string, encoding) {
  if (typeof string !== 'string') string = '' + string

  var len = string.length
  if (len === 0) return 0

  // Use a for loop to avoid recursion
  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'ascii':
      case 'binary':
      // Deprecated
      case 'raw':
      case 'raws':
        return len
      case 'utf8':
      case 'utf-8':
        return utf8ToBytes(string).length
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return len * 2
      case 'hex':
        return len >>> 1
      case 'base64':
        return base64ToBytes(string).length
      default:
        if (loweredCase) return utf8ToBytes(string).length // assume utf8
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}
Buffer.byteLength = byteLength

// pre-set for values that may exist in the future
Buffer.prototype.length = undefined
Buffer.prototype.parent = undefined

function slowToString (encoding, start, end) {
  var loweredCase = false

  start = start | 0
  end = end === undefined || end === Infinity ? this.length : end | 0

  if (!encoding) encoding = 'utf8'
  if (start < 0) start = 0
  if (end > this.length) end = this.length
  if (end <= start) return ''

  while (true) {
    switch (encoding) {
      case 'hex':
        return hexSlice(this, start, end)

      case 'utf8':
      case 'utf-8':
        return utf8Slice(this, start, end)

      case 'ascii':
        return asciiSlice(this, start, end)

      case 'binary':
        return binarySlice(this, start, end)

      case 'base64':
        return base64Slice(this, start, end)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return utf16leSlice(this, start, end)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = (encoding + '').toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toString = function toString () {
  var length = this.length | 0
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

Buffer.prototype.equals = function equals (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return true
  return Buffer.compare(this, b) === 0
}

Buffer.prototype.inspect = function inspect () {
  var str = ''
  var max = exports.INSPECT_MAX_BYTES
  if (this.length > 0) {
    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
    if (this.length > max) str += ' ... '
  }
  return '<Buffer ' + str + '>'
}

Buffer.prototype.compare = function compare (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return 0
  return Buffer.compare(this, b)
}

Buffer.prototype.indexOf = function indexOf (val, byteOffset) {
  if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff
  else if (byteOffset < -0x80000000) byteOffset = -0x80000000
  byteOffset >>= 0

  if (this.length === 0) return -1
  if (byteOffset >= this.length) return -1

  // Negative offsets start from the end of the buffer
  if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)

  if (typeof val === 'string') {
    if (val.length === 0) return -1 // special case: looking for empty string always fails
    return String.prototype.indexOf.call(this, val, byteOffset)
  }
  if (Buffer.isBuffer(val)) {
    return arrayIndexOf(this, val, byteOffset)
  }
  if (typeof val === 'number') {
    if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') {
      return Uint8Array.prototype.indexOf.call(this, val, byteOffset)
    }
    return arrayIndexOf(this, [ val ], byteOffset)
  }

  function arrayIndexOf (arr, val, byteOffset) {
    var foundIndex = -1
    for (var i = 0; byteOffset + i < arr.length; i++) {
      if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) {
        if (foundIndex === -1) foundIndex = i
        if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex
      } else {
        foundIndex = -1
      }
    }
    return -1
  }

  throw new TypeError('val must be string, number or Buffer')
}

// `get` is deprecated
Buffer.prototype.get = function get (offset) {
  console.log('.get() is deprecated. Access using array indexes instead.')
  return this.readUInt8(offset)
}

// `set` is deprecated
Buffer.prototype.set = function set (v, offset) {
  console.log('.set() is deprecated. Access using array indexes instead.')
  return this.writeUInt8(v, offset)
}

function hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  var remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  // must be an even number of digits
  var strLen = string.length
  if (strLen % 2 !== 0) throw new Error('Invalid hex string')

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; i++) {
    var parsed = parseInt(string.substr(i * 2, 2), 16)
    if (isNaN(parsed)) throw new Error('Invalid hex string')
    buf[offset + i] = parsed
  }
  return i
}

function utf8Write (buf, string, offset, length) {
  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}

function asciiWrite (buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length)
}

function binaryWrite (buf, string, offset, length) {
  return asciiWrite(buf, string, offset, length)
}

function base64Write (buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length)
}

function ucs2Write (buf, string, offset, length) {
  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}

Buffer.prototype.write = function write (string, offset, length, encoding) {
  // Buffer#write(string)
  if (offset === undefined) {
    encoding = 'utf8'
    length = this.length
    offset = 0
  // Buffer#write(string, encoding)
  } else if (length === undefined && typeof offset === 'string') {
    encoding = offset
    length = this.length
    offset = 0
  // Buffer#write(string, offset[, length][, encoding])
  } else if (isFinite(offset)) {
    offset = offset | 0
    if (isFinite(length)) {
      length = length | 0
      if (encoding === undefined) encoding = 'utf8'
    } else {
      encoding = length
      length = undefined
    }
  // legacy write(string, encoding, offset, length) - remove in v0.13
  } else {
    var swap = encoding
    encoding = offset
    offset = length | 0
    length = swap
  }

  var remaining = this.length - offset
  if (length === undefined || length > remaining) length = remaining

  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
    throw new RangeError('attempt to write outside buffer bounds')
  }

  if (!encoding) encoding = 'utf8'

  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'hex':
        return hexWrite(this, string, offset, length)

      case 'utf8':
      case 'utf-8':
        return utf8Write(this, string, offset, length)

      case 'ascii':
        return asciiWrite(this, string, offset, length)

      case 'binary':
        return binaryWrite(this, string, offset, length)

      case 'base64':
        // Warning: maxLength not taken into account in base64Write
        return base64Write(this, string, offset, length)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return ucs2Write(this, string, offset, length)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toJSON = function toJSON () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

function base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function utf8Slice (buf, start, end) {
  end = Math.min(buf.length, end)
  var res = []

  var i = start
  while (i < end) {
    var firstByte = buf[i]
    var codePoint = null
    var bytesPerSequence = (firstByte > 0xEF) ? 4
      : (firstByte > 0xDF) ? 3
      : (firstByte > 0xBF) ? 2
      : 1

    if (i + bytesPerSequence <= end) {
      var secondByte, thirdByte, fourthByte, tempCodePoint

      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 0x80) {
            codePoint = firstByte
          }
          break
        case 2:
          secondByte = buf[i + 1]
          if ((secondByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
            if (tempCodePoint > 0x7F) {
              codePoint = tempCodePoint
            }
          }
          break
        case 3:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
              codePoint = tempCodePoint
            }
          }
          break
        case 4:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          fourthByte = buf[i + 3]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
              codePoint = tempCodePoint
            }
          }
      }
    }

    if (codePoint === null) {
      // we did not generate a valid codePoint so insert a
      // replacement char (U+FFFD) and advance only 1 byte
      codePoint = 0xFFFD
      bytesPerSequence = 1
    } else if (codePoint > 0xFFFF) {
      // encode to utf16 (surrogate pair dance)
      codePoint -= 0x10000
      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
      codePoint = 0xDC00 | codePoint & 0x3FF
    }

    res.push(codePoint)
    i += bytesPerSequence
  }

  return decodeCodePointsArray(res)
}

// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000

function decodeCodePointsArray (codePoints) {
  var len = codePoints.length
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
  }

  // Decode in chunks to avoid "call stack size exceeded".
  var res = ''
  var i = 0
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    )
  }
  return res
}

function asciiSlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; i++) {
    ret += String.fromCharCode(buf[i] & 0x7F)
  }
  return ret
}

function binarySlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; i++) {
    ret += String.fromCharCode(buf[i])
  }
  return ret
}

function hexSlice (buf, start, end) {
  var len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  var out = ''
  for (var i = start; i < end; i++) {
    out += toHex(buf[i])
  }
  return out
}

function utf16leSlice (buf, start, end) {
  var bytes = buf.slice(start, end)
  var res = ''
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
  }
  return res
}

Buffer.prototype.slice = function slice (start, end) {
  var len = this.length
  start = ~~start
  end = end === undefined ? len : ~~end

  if (start < 0) {
    start += len
    if (start < 0) start = 0
  } else if (start > len) {
    start = len
  }

  if (end < 0) {
    end += len
    if (end < 0) end = 0
  } else if (end > len) {
    end = len
  }

  if (end < start) end = start

  var newBuf
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    newBuf = Buffer._augment(this.subarray(start, end))
  } else {
    var sliceLen = end - start
    newBuf = new Buffer(sliceLen, undefined)
    for (var i = 0; i < sliceLen; i++) {
      newBuf[i] = this[i + start]
    }
  }

  if (newBuf.length) newBuf.parent = this.parent || this

  return newBuf
}

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */
function checkOffset (offset, ext, length) {
  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}

Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }

  return val
}

Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    checkOffset(offset, byteLength, this.length)
  }

  var val = this[offset + --byteLength]
  var mul = 1
  while (byteLength > 0 && (mul *= 0x100)) {
    val += this[offset + --byteLength] * mul
  }

  return val
}

Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return ((this[offset]) |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16)) +
      (this[offset + 3] * 0x1000000)
}

Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] * 0x1000000) +
    ((this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    this[offset + 3])
}

Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var i = byteLength
  var mul = 1
  var val = this[offset + --i]
  while (i > 0 && (mul *= 0x100)) {
    val += this[offset + --i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  if (!(this[offset] & 0x80)) return (this[offset])
  return ((0xff - this[offset] + 1) * -1)
}

Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset] | (this[offset + 1] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset + 1] | (this[offset] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset]) |
    (this[offset + 1] << 8) |
    (this[offset + 2] << 16) |
    (this[offset + 3] << 24)
}

Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] << 24) |
    (this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    (this[offset + 3])
}

Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, false, 52, 8)
}

function checkInt (buf, value, offset, ext, max, min) {
  if (!Buffer.isBuffer(buf)) throw new TypeError('buffer must be a Buffer instance')
  if (value > max || value < min) throw new RangeError('value is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('index out of range')
}

Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)

  var mul = 1
  var i = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)

  var i = byteLength - 1
  var mul = 1
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  this[offset] = (value & 0xff)
  return offset + 1
}

function objectWriteUInt16 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) {
    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
      (littleEndian ? i : 1 - i) * 8
  }
}

Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  return offset + 2
}

Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

function objectWriteUInt32 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffffffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) {
    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
  }
}

Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset + 3] = (value >>> 24)
    this[offset + 2] = (value >>> 16)
    this[offset + 1] = (value >>> 8)
    this[offset] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  return offset + 4
}

Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  return offset + 4
}

Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = 0
  var mul = 1
  var sub = value < 0 ? 1 : 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = byteLength - 1
  var mul = 1
  var sub = value < 0 ? 1 : 0
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  if (value < 0) value = 0xff + value + 1
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  return offset + 2
}

Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
    this[offset + 2] = (value >>> 16)
    this[offset + 3] = (value >>> 24)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  return offset + 4
}

Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (value < 0) value = 0xffffffff + value + 1
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  return offset + 4
}

function checkIEEE754 (buf, value, offset, ext, max, min) {
  if (value > max || value < min) throw new RangeError('value is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('index out of range')
  if (offset < 0) throw new RangeError('index out of range')
}

function writeFloat (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }
  ieee754.write(buf, value, offset, littleEndian, 23, 4)
  return offset + 4
}

Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert)
}

function writeDouble (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }
  ieee754.write(buf, value, offset, littleEndian, 52, 8)
  return offset + 8
}

Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert)
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (targetStart >= target.length) targetStart = target.length
  if (!targetStart) targetStart = 0
  if (end > 0 && end < start) end = start

  // Copy 0 bytes; we're done
  if (end === start) return 0
  if (target.length === 0 || this.length === 0) return 0

  // Fatal error conditions
  if (targetStart < 0) {
    throw new RangeError('targetStart out of bounds')
  }
  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
  if (end < 0) throw new RangeError('sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length) end = this.length
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start
  }

  var len = end - start
  var i

  if (this === target && start < targetStart && targetStart < end) {
    // descending copy from end
    for (i = len - 1; i >= 0; i--) {
      target[i + targetStart] = this[i + start]
    }
  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
    // ascending copy from start
    for (i = 0; i < len; i++) {
      target[i + targetStart] = this[i + start]
    }
  } else {
    target._set(this.subarray(start, start + len), targetStart)
  }

  return len
}

// fill(value, start=0, end=buffer.length)
Buffer.prototype.fill = function fill (value, start, end) {
  if (!value) value = 0
  if (!start) start = 0
  if (!end) end = this.length

  if (end < start) throw new RangeError('end < start')

  // Fill 0 bytes; we're done
  if (end === start) return
  if (this.length === 0) return

  if (start < 0 || start >= this.length) throw new RangeError('start out of bounds')
  if (end < 0 || end > this.length) throw new RangeError('end out of bounds')

  var i
  if (typeof value === 'number') {
    for (i = start; i < end; i++) {
      this[i] = value
    }
  } else {
    var bytes = utf8ToBytes(value.toString())
    var len = bytes.length
    for (i = start; i < end; i++) {
      this[i] = bytes[i % len]
    }
  }

  return this
}

/**
 * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance.
 * Added in Node 0.12. Only available in browsers that support ArrayBuffer.
 */
Buffer.prototype.toArrayBuffer = function toArrayBuffer () {
  if (typeof Uint8Array !== 'undefined') {
    if (Buffer.TYPED_ARRAY_SUPPORT) {
      return (new Buffer(this)).buffer
    } else {
      var buf = new Uint8Array(this.length)
      for (var i = 0, len = buf.length; i < len; i += 1) {
        buf[i] = this[i]
      }
      return buf.buffer
    }
  } else {
    throw new TypeError('Buffer.toArrayBuffer not supported in this browser')
  }
}

// HELPER FUNCTIONS
// ================

var BP = Buffer.prototype

/**
 * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods
 */
Buffer._augment = function _augment (arr) {
  arr.constructor = Buffer
  arr._isBuffer = true

  // save reference to original Uint8Array set method before overwriting
  arr._set = arr.set

  // deprecated
  arr.get = BP.get
  arr.set = BP.set

  arr.write = BP.write
  arr.toString = BP.toString
  arr.toLocaleString = BP.toString
  arr.toJSON = BP.toJSON
  arr.equals = BP.equals
  arr.compare = BP.compare
  arr.indexOf = BP.indexOf
  arr.copy = BP.copy
  arr.slice = BP.slice
  arr.readUIntLE = BP.readUIntLE
  arr.readUIntBE = BP.readUIntBE
  arr.readUInt8 = BP.readUInt8
  arr.readUInt16LE = BP.readUInt16LE
  arr.readUInt16BE = BP.readUInt16BE
  arr.readUInt32LE = BP.readUInt32LE
  arr.readUInt32BE = BP.readUInt32BE
  arr.readIntLE = BP.readIntLE
  arr.readIntBE = BP.readIntBE
  arr.readInt8 = BP.readInt8
  arr.readInt16LE = BP.readInt16LE
  arr.readInt16BE = BP.readInt16BE
  arr.readInt32LE = BP.readInt32LE
  arr.readInt32BE = BP.readInt32BE
  arr.readFloatLE = BP.readFloatLE
  arr.readFloatBE = BP.readFloatBE
  arr.readDoubleLE = BP.readDoubleLE
  arr.readDoubleBE = BP.readDoubleBE
  arr.writeUInt8 = BP.writeUInt8
  arr.writeUIntLE = BP.writeUIntLE
  arr.writeUIntBE = BP.writeUIntBE
  arr.writeUInt16LE = BP.writeUInt16LE
  arr.writeUInt16BE = BP.writeUInt16BE
  arr.writeUInt32LE = BP.writeUInt32LE
  arr.writeUInt32BE = BP.writeUInt32BE
  arr.writeIntLE = BP.writeIntLE
  arr.writeIntBE = BP.writeIntBE
  arr.writeInt8 = BP.writeInt8
  arr.writeInt16LE = BP.writeInt16LE
  arr.writeInt16BE = BP.writeInt16BE
  arr.writeInt32LE = BP.writeInt32LE
  arr.writeInt32BE = BP.writeInt32BE
  arr.writeFloatLE = BP.writeFloatLE
  arr.writeFloatBE = BP.writeFloatBE
  arr.writeDoubleLE = BP.writeDoubleLE
  arr.writeDoubleBE = BP.writeDoubleBE
  arr.fill = BP.fill
  arr.inspect = BP.inspect
  arr.toArrayBuffer = BP.toArrayBuffer

  return arr
}

var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g

function base64clean (str) {
  // Node strips out invalid characters like \n and \t from the string, base64-js does not
  str = stringtrim(str).replace(INVALID_BASE64_RE, '')
  // Node converts strings with length < 2 to ''
  if (str.length < 2) return ''
  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
  while (str.length % 4 !== 0) {
    str = str + '='
  }
  return str
}

function stringtrim (str) {
  if (str.trim) return str.trim()
  return str.replace(/^\s+|\s+$/g, '')
}

function toHex (n) {
  if (n < 16) return '0' + n.toString(16)
  return n.toString(16)
}

function utf8ToBytes (string, units) {
  units = units || Infinity
  var codePoint
  var length = string.length
  var leadSurrogate = null
  var bytes = []

  for (var i = 0; i < length; i++) {
    codePoint = string.charCodeAt(i)

    // is surrogate component
    if (codePoint > 0xD7FF && codePoint < 0xE000) {
      // last char was a lead
      if (!leadSurrogate) {
        // no lead yet
        if (codePoint > 0xDBFF) {
          // unexpected trail
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        } else if (i + 1 === length) {
          // unpaired lead
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        }

        // valid lead
        leadSurrogate = codePoint

        continue
      }

      // 2 leads in a row
      if (codePoint < 0xDC00) {
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
        leadSurrogate = codePoint
        continue
      }

      // valid surrogate pair
      codePoint = leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00 | 0x10000
    } else if (leadSurrogate) {
      // valid bmp char, but last char was a lead
      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
    }

    leadSurrogate = null

    // encode utf8
    if (codePoint < 0x80) {
      if ((units -= 1) < 0) break
      bytes.push(codePoint)
    } else if (codePoint < 0x800) {
      if ((units -= 2) < 0) break
      bytes.push(
        codePoint >> 0x6 | 0xC0,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x10000) {
      if ((units -= 3) < 0) break
      bytes.push(
        codePoint >> 0xC | 0xE0,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x110000) {
      if ((units -= 4) < 0) break
      bytes.push(
        codePoint >> 0x12 | 0xF0,
        codePoint >> 0xC & 0x3F | 0x80,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else {
      throw new Error('Invalid code point')
    }
  }

  return bytes
}

function asciiToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; i++) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str, units) {
  var c, hi, lo
  var byteArray = []
  for (var i = 0; i < str.length; i++) {
    if ((units -= 2) < 0) break

    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(base64clean(str))
}

function blitBuffer (src, dst, offset, length) {
  for (var i = 0; i < length; i++) {
    if ((i + offset >= dst.length) || (i >= src.length)) break
    dst[i + offset] = src[i]
  }
  return i
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"base64-js":19,"ieee754":20,"is-array":21}],19:[function(require,module,exports){
var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';

;(function (exports) {
	'use strict';

  var Arr = (typeof Uint8Array !== 'undefined')
    ? Uint8Array
    : Array

	var PLUS   = '+'.charCodeAt(0)
	var SLASH  = '/'.charCodeAt(0)
	var NUMBER = '0'.charCodeAt(0)
	var LOWER  = 'a'.charCodeAt(0)
	var UPPER  = 'A'.charCodeAt(0)
	var PLUS_URL_SAFE = '-'.charCodeAt(0)
	var SLASH_URL_SAFE = '_'.charCodeAt(0)

	function decode (elt) {
		var code = elt.charCodeAt(0)
		if (code === PLUS ||
		    code === PLUS_URL_SAFE)
			return 62 // '+'
		if (code === SLASH ||
		    code === SLASH_URL_SAFE)
			return 63 // '/'
		if (code < NUMBER)
			return -1 //no match
		if (code < NUMBER + 10)
			return code - NUMBER + 26 + 26
		if (code < UPPER + 26)
			return code - UPPER
		if (code < LOWER + 26)
			return code - LOWER + 26
	}

	function b64ToByteArray (b64) {
		var i, j, l, tmp, placeHolders, arr

		if (b64.length % 4 > 0) {
			throw new Error('Invalid string. Length must be a multiple of 4')
		}

		// the number of equal signs (place holders)
		// if there are two placeholders, than the two characters before it
		// represent one byte
		// if there is only one, then the three characters before it represent 2 bytes
		// this is just a cheap hack to not do indexOf twice
		var len = b64.length
		placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0

		// base64 is 4/3 + up to two characters of the original data
		arr = new Arr(b64.length * 3 / 4 - placeHolders)

		// if there are placeholders, only get up to the last complete 4 chars
		l = placeHolders > 0 ? b64.length - 4 : b64.length

		var L = 0

		function push (v) {
			arr[L++] = v
		}

		for (i = 0, j = 0; i < l; i += 4, j += 3) {
			tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3))
			push((tmp & 0xFF0000) >> 16)
			push((tmp & 0xFF00) >> 8)
			push(tmp & 0xFF)
		}

		if (placeHolders === 2) {
			tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4)
			push(tmp & 0xFF)
		} else if (placeHolders === 1) {
			tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2)
			push((tmp >> 8) & 0xFF)
			push(tmp & 0xFF)
		}

		return arr
	}

	function uint8ToBase64 (uint8) {
		var i,
			extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
			output = "",
			temp, length

		function encode (num) {
			return lookup.charAt(num)
		}

		function tripletToBase64 (num) {
			return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
		}

		// go through the array every three bytes, we'll deal with trailing stuff later
		for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
			temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
			output += tripletToBase64(temp)
		}

		// pad the end with zeros, but make sure to not forget the extra bytes
		switch (extraBytes) {
			case 1:
				temp = uint8[uint8.length - 1]
				output += encode(temp >> 2)
				output += encode((temp << 4) & 0x3F)
				output += '=='
				break
			case 2:
				temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
				output += encode(temp >> 10)
				output += encode((temp >> 4) & 0x3F)
				output += encode((temp << 2) & 0x3F)
				output += '='
				break
		}

		return output
	}

	exports.toByteArray = b64ToByteArray
	exports.fromByteArray = uint8ToBase64
}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))

},{}],20:[function(require,module,exports){
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = nBytes * 8 - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = nBytes * 8 - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = (value * c - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}

},{}],21:[function(require,module,exports){

/**
 * isArray
 */

var isArray = Array.isArray;

/**
 * toString
 */

var str = Object.prototype.toString;

/**
 * Whether or not the given `val`
 * is an array.
 *
 * example:
 *
 *        isArray([]);
 *        // > true
 *        isArray(arguments);
 *        // > false
 *        isArray('');
 *        // > false
 *
 * @param {mixed} val
 * @return {bool}
 */

module.exports = isArray || function (val) {
  return !! val && '[object Array]' == str.call(val);
};

},{}],22:[function(require,module,exports){
'use strict'

exports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = require('randombytes')
exports.createHash = exports.Hash = require('create-hash')
exports.createHmac = exports.Hmac = require('create-hmac')

var hashes = ['sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'md5', 'rmd160'].concat(Object.keys(require('browserify-sign/algos')))
exports.getHashes = function () {
  return hashes
}

var p = require('pbkdf2')
exports.pbkdf2 = p.pbkdf2
exports.pbkdf2Sync = p.pbkdf2Sync

var aes = require('browserify-cipher')
;[
  'Cipher',
  'createCipher',
  'Cipheriv',
  'createCipheriv',
  'Decipher',
  'createDecipher',
  'Decipheriv',
  'createDecipheriv',
  'getCiphers',
  'listCiphers'
].forEach(function (key) {
  exports[key] = aes[key]
})

var dh = require('diffie-hellman')
;[
  'DiffieHellmanGroup',
  'createDiffieHellmanGroup',
  'getDiffieHellman',
  'createDiffieHellman',
  'DiffieHellman'
].forEach(function (key) {
  exports[key] = dh[key]
})

var sign = require('browserify-sign')
;[
  'createSign',
  'Sign',
  'createVerify',
  'Verify'
].forEach(function (key) {
  exports[key] = sign[key]
})

exports.createECDH = require('create-ecdh')

var publicEncrypt = require('public-encrypt')

;[
  'publicEncrypt',
  'privateEncrypt',
  'publicDecrypt',
  'privateDecrypt'
].forEach(function (key) {
  exports[key] = publicEncrypt[key]
})

// the least I can do is make error messages for the rest of the node.js/crypto api.
;[
  'createCredentials'
].forEach(function (name) {
  exports[name] = function () {
    throw new Error([
      'sorry, ' + name + ' is not implemented yet',
      'we accept pull requests',
      'https://github.com/crypto-browserify/crypto-browserify'
    ].join('\n'))
  }
})

},{"browserify-cipher":23,"browserify-sign":53,"browserify-sign/algos":52,"create-ecdh":117,"create-hash":140,"create-hmac":153,"diffie-hellman":154,"pbkdf2":161,"public-encrypt":162,"randombytes":207}],23:[function(require,module,exports){
var ebtk = require('evp_bytestokey')
var aes = require('browserify-aes/browser')
var DES = require('browserify-des')
var desModes = require('browserify-des/modes')
var aesModes = require('browserify-aes/modes')
function createCipher (suite, password) {
  var keyLen, ivLen
  suite = suite.toLowerCase()
  if (aesModes[suite]) {
    keyLen = aesModes[suite].key
    ivLen = aesModes[suite].iv
  } else if (desModes[suite]) {
    keyLen = desModes[suite].key * 8
    ivLen = desModes[suite].iv
  } else {
    throw new TypeError('invalid suite type')
  }
  var keys = ebtk(password, false, keyLen, ivLen)
  return createCipheriv(suite, keys.key, keys.iv)
}
function createDecipher (suite, password) {
  var keyLen, ivLen
  suite = suite.toLowerCase()
  if (aesModes[suite]) {
    keyLen = aesModes[suite].key
    ivLen = aesModes[suite].iv
  } else if (desModes[suite]) {
    keyLen = desModes[suite].key * 8
    ivLen = desModes[suite].iv
  } else {
    throw new TypeError('invalid suite type')
  }
  var keys = ebtk(password, false, keyLen, ivLen)
  return createDecipheriv(suite, keys.key, keys.iv)
}

function createCipheriv (suite, key, iv) {
  suite = suite.toLowerCase()
  if (aesModes[suite]) {
    return aes.createCipheriv(suite, key, iv)
  } else if (desModes[suite]) {
    return new DES({
      key: key,
      iv: iv,
      mode: suite
    })
  } else {
    throw new TypeError('invalid suite type')
  }
}
function createDecipheriv (suite, key, iv) {
  suite = suite.toLowerCase()
  if (aesModes[suite]) {
    return aes.createDecipheriv(suite, key, iv)
  } else if (desModes[suite]) {
    return new DES({
      key: key,
      iv: iv,
      mode: suite,
      decrypt: true
    })
  } else {
    throw new TypeError('invalid suite type')
  }
}
exports.createCipher = exports.Cipher = createCipher
exports.createCipheriv = exports.Cipheriv = createCipheriv
exports.createDecipher = exports.Decipher = createDecipher
exports.createDecipheriv = exports.Decipheriv = createDecipheriv
function getCiphers () {
  return Object.keys(desModes).concat(aes.getCiphers())
}
exports.listCiphers = exports.getCiphers = getCiphers

},{"browserify-aes/browser":26,"browserify-aes/modes":30,"browserify-des":41,"browserify-des/modes":42,"evp_bytestokey":51}],24:[function(require,module,exports){
(function (Buffer){
// based on the aes implimentation in triple sec
// https://github.com/keybase/triplesec

// which is in turn based on the one from crypto-js
// https://code.google.com/p/crypto-js/

var uint_max = Math.pow(2, 32)
function fixup_uint32 (x) {
  var ret, x_pos
  ret = x > uint_max || x < 0 ? (x_pos = Math.abs(x) % uint_max, x < 0 ? uint_max - x_pos : x_pos) : x
  return ret
}
function scrub_vec (v) {
  for (var i = 0; i < v.length; v++) {
    v[i] = 0
  }
  return false
}

function Global () {
  this.SBOX = []
  this.INV_SBOX = []
  this.SUB_MIX = [[], [], [], []]
  this.INV_SUB_MIX = [[], [], [], []]
  this.init()
  this.RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36]
}

Global.prototype.init = function () {
  var d, i, sx, t, x, x2, x4, x8, xi, _i
  d = (function () {
    var _i, _results
    _results = []
    for (i = _i = 0; _i < 256; i = ++_i) {
      if (i < 128) {
        _results.push(i << 1)
      } else {
        _results.push((i << 1) ^ 0x11b)
      }
    }
    return _results
  })()
  x = 0
  xi = 0
  for (i = _i = 0; _i < 256; i = ++_i) {
    sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4)
    sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63
    this.SBOX[x] = sx
    this.INV_SBOX[sx] = x
    x2 = d[x]
    x4 = d[x2]
    x8 = d[x4]
    t = (d[sx] * 0x101) ^ (sx * 0x1010100)
    this.SUB_MIX[0][x] = (t << 24) | (t >>> 8)
    this.SUB_MIX[1][x] = (t << 16) | (t >>> 16)
    this.SUB_MIX[2][x] = (t << 8) | (t >>> 24)
    this.SUB_MIX[3][x] = t
    t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100)
    this.INV_SUB_MIX[0][sx] = (t << 24) | (t >>> 8)
    this.INV_SUB_MIX[1][sx] = (t << 16) | (t >>> 16)
    this.INV_SUB_MIX[2][sx] = (t << 8) | (t >>> 24)
    this.INV_SUB_MIX[3][sx] = t
    if (x === 0) {
      x = xi = 1
    } else {
      x = x2 ^ d[d[d[x8 ^ x2]]]
      xi ^= d[d[xi]]
    }
  }
  return true
}

var G = new Global()

AES.blockSize = 4 * 4

AES.prototype.blockSize = AES.blockSize

AES.keySize = 256 / 8

AES.prototype.keySize = AES.keySize

function bufferToArray (buf) {
  var len = buf.length / 4
  var out = new Array(len)
  var i = -1
  while (++i < len) {
    out[i] = buf.readUInt32BE(i * 4)
  }
  return out
}
function AES (key) {
  this._key = bufferToArray(key)
  this._doReset()
}

AES.prototype._doReset = function () {
  var invKsRow, keySize, keyWords, ksRow, ksRows, t
  keyWords = this._key
  keySize = keyWords.length
  this._nRounds = keySize + 6
  ksRows = (this._nRounds + 1) * 4
  this._keySchedule = []
  for (ksRow = 0; ksRow < ksRows; ksRow++) {
    this._keySchedule[ksRow] = ksRow < keySize ? keyWords[ksRow] : (t = this._keySchedule[ksRow - 1], (ksRow % keySize) === 0 ? (t = (t << 8) | (t >>> 24), t = (G.SBOX[t >>> 24] << 24) | (G.SBOX[(t >>> 16) & 0xff] << 16) | (G.SBOX[(t >>> 8) & 0xff] << 8) | G.SBOX[t & 0xff], t ^= G.RCON[(ksRow / keySize) | 0] << 24) : keySize > 6 && ksRow % keySize === 4 ? t = (G.SBOX[t >>> 24] << 24) | (G.SBOX[(t >>> 16) & 0xff] << 16) | (G.SBOX[(t >>> 8) & 0xff] << 8) | G.SBOX[t & 0xff] : void 0, this._keySchedule[ksRow - keySize] ^ t)
  }
  this._invKeySchedule = []
  for (invKsRow = 0; invKsRow < ksRows; invKsRow++) {
    ksRow = ksRows - invKsRow
    t = this._keySchedule[ksRow - (invKsRow % 4 ? 0 : 4)]
    this._invKeySchedule[invKsRow] = invKsRow < 4 || ksRow <= 4 ? t : G.INV_SUB_MIX[0][G.SBOX[t >>> 24]] ^ G.INV_SUB_MIX[1][G.SBOX[(t >>> 16) & 0xff]] ^ G.INV_SUB_MIX[2][G.SBOX[(t >>> 8) & 0xff]] ^ G.INV_SUB_MIX[3][G.SBOX[t & 0xff]]
  }
  return true
}

AES.prototype.encryptBlock = function (M) {
  M = bufferToArray(new Buffer(M))
  var out = this._doCryptBlock(M, this._keySchedule, G.SUB_MIX, G.SBOX)
  var buf = new Buffer(16)
  buf.writeUInt32BE(out[0], 0)
  buf.writeUInt32BE(out[1], 4)
  buf.writeUInt32BE(out[2], 8)
  buf.writeUInt32BE(out[3], 12)
  return buf
}

AES.prototype.decryptBlock = function (M) {
  M = bufferToArray(new Buffer(M))
  var temp = [M[3], M[1]]
  M[1] = temp[0]
  M[3] = temp[1]
  var out = this._doCryptBlock(M, this._invKeySchedule, G.INV_SUB_MIX, G.INV_SBOX)
  var buf = new Buffer(16)
  buf.writeUInt32BE(out[0], 0)
  buf.writeUInt32BE(out[3], 4)
  buf.writeUInt32BE(out[2], 8)
  buf.writeUInt32BE(out[1], 12)
  return buf
}

AES.prototype.scrub = function () {
  scrub_vec(this._keySchedule)
  scrub_vec(this._invKeySchedule)
  scrub_vec(this._key)
}

AES.prototype._doCryptBlock = function (M, keySchedule, SUB_MIX, SBOX) {
  var ksRow, s0, s1, s2, s3, t0, t1, t2, t3

  s0 = M[0] ^ keySchedule[0]
  s1 = M[1] ^ keySchedule[1]
  s2 = M[2] ^ keySchedule[2]
  s3 = M[3] ^ keySchedule[3]
  ksRow = 4
  for (var round = 1; round < this._nRounds; round++) {
    t0 = SUB_MIX[0][s0 >>> 24] ^ SUB_MIX[1][(s1 >>> 16) & 0xff] ^ SUB_MIX[2][(s2 >>> 8) & 0xff] ^ SUB_MIX[3][s3 & 0xff] ^ keySchedule[ksRow++]
    t1 = SUB_MIX[0][s1 >>> 24] ^ SUB_MIX[1][(s2 >>> 16) & 0xff] ^ SUB_MIX[2][(s3 >>> 8) & 0xff] ^ SUB_MIX[3][s0 & 0xff] ^ keySchedule[ksRow++]
    t2 = SUB_MIX[0][s2 >>> 24] ^ SUB_MIX[1][(s3 >>> 16) & 0xff] ^ SUB_MIX[2][(s0 >>> 8) & 0xff] ^ SUB_MIX[3][s1 & 0xff] ^ keySchedule[ksRow++]
    t3 = SUB_MIX[0][s3 >>> 24] ^ SUB_MIX[1][(s0 >>> 16) & 0xff] ^ SUB_MIX[2][(s1 >>> 8) & 0xff] ^ SUB_MIX[3][s2 & 0xff] ^ keySchedule[ksRow++]
    s0 = t0
    s1 = t1
    s2 = t2
    s3 = t3
  }
  t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++]
  t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++]
  t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++]
  t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++]
  return [
    fixup_uint32(t0),
    fixup_uint32(t1),
    fixup_uint32(t2),
    fixup_uint32(t3)
  ]
}

exports.AES = AES

}).call(this,require("buffer").Buffer)
},{"buffer":18}],25:[function(require,module,exports){
(function (Buffer){
var aes = require('./aes')
var Transform = require('cipher-base')
var inherits = require('inherits')
var GHASH = require('./ghash')
var xor = require('buffer-xor')
inherits(StreamCipher, Transform)
module.exports = StreamCipher

function StreamCipher (mode, key, iv, decrypt) {
  if (!(this instanceof StreamCipher)) {
    return new StreamCipher(mode, key, iv)
  }
  Transform.call(this)
  this._finID = Buffer.concat([iv, new Buffer([0, 0, 0, 1])])
  iv = Buffer.concat([iv, new Buffer([0, 0, 0, 2])])
  this._cipher = new aes.AES(key)
  this._prev = new Buffer(iv.length)
  this._cache = new Buffer('')
  this._secCache = new Buffer('')
  this._decrypt = decrypt
  this._alen = 0
  this._len = 0
  iv.copy(this._prev)
  this._mode = mode
  var h = new Buffer(4)
  h.fill(0)
  this._ghash = new GHASH(this._cipher.encryptBlock(h))
  this._authTag = null
  this._called = false
}
StreamCipher.prototype._update = function (chunk) {
  if (!this._called && this._alen) {
    var rump = 16 - (this._alen % 16)
    if (rump < 16) {
      rump = new Buffer(rump)
      rump.fill(0)
      this._ghash.update(rump)
    }
  }
  this._called = true
  var out = this._mode.encrypt(this, chunk)
  if (this._decrypt) {
    this._ghash.update(chunk)
  } else {
    this._ghash.update(out)
  }
  this._len += chunk.length
  return out
}
StreamCipher.prototype._final = function () {
  if (this._decrypt && !this._authTag) {
    throw new Error('Unsupported state or unable to authenticate data')
  }
  var tag = xor(this._ghash.final(this._alen * 8, this._len * 8), this._cipher.encryptBlock(this._finID))
  if (this._decrypt) {
    if (xorTest(tag, this._authTag)) {
      throw new Error('Unsupported state or unable to authenticate data')
    }
  } else {
    this._authTag = tag
  }
  this._cipher.scrub()
}
StreamCipher.prototype.getAuthTag = function getAuthTag () {
  if (!this._decrypt && Buffer.isBuffer(this._authTag)) {
    return this._authTag
  } else {
    throw new Error('Attempting to get auth tag in unsupported state')
  }
}
StreamCipher.prototype.setAuthTag = function setAuthTag (tag) {
  if (this._decrypt) {
    this._authTag = tag
  } else {
    throw new Error('Attempting to set auth tag in unsupported state')
  }
}
StreamCipher.prototype.setAAD = function setAAD (buf) {
  if (!this._called) {
    this._ghash.update(buf)
    this._alen += buf.length
  } else {
    throw new Error('Attempting to set AAD in unsupported state')
  }
}
function xorTest (a, b) {
  var out = 0
  if (a.length !== b.length) {
    out++
  }
  var len = Math.min(a.length, b.length)
  var i = -1
  while (++i < len) {
    out += (a[i] ^ b[i])
  }
  return out
}

}).call(this,require("buffer").Buffer)
},{"./aes":24,"./ghash":29,"buffer":18,"buffer-xor":38,"cipher-base":39,"inherits":210}],26:[function(require,module,exports){
var ciphers = require('./encrypter')
exports.createCipher = exports.Cipher = ciphers.createCipher
exports.createCipheriv = exports.Cipheriv = ciphers.createCipheriv
var deciphers = require('./decrypter')
exports.createDecipher = exports.Decipher = deciphers.createDecipher
exports.createDecipheriv = exports.Decipheriv = deciphers.createDecipheriv
var modes = require('./modes')
function getCiphers () {
  return Object.keys(modes)
}
exports.listCiphers = exports.getCiphers = getCiphers

},{"./decrypter":27,"./encrypter":28,"./modes":30}],27:[function(require,module,exports){
(function (Buffer){
var aes = require('./aes')
var Transform = require('cipher-base')
var inherits = require('inherits')
var modes = require('./modes')
var StreamCipher = require('./streamCipher')
var AuthCipher = require('./authCipher')
var ebtk = require('evp_bytestokey')

inherits(Decipher, Transform)
function Decipher (mode, key, iv) {
  if (!(this instanceof Decipher)) {
    return new Decipher(mode, key, iv)
  }
  Transform.call(this)
  this._cache = new Splitter()
  this._last = void 0
  this._cipher = new aes.AES(key)
  this._prev = new Buffer(iv.length)
  iv.copy(this._prev)
  this._mode = mode
  this._autopadding = true
}
Decipher.prototype._update = function (data) {
  this._cache.add(data)
  var chunk
  var thing
  var out = []
  while ((chunk = this._cache.get(this._autopadding))) {
    thing = this._mode.decrypt(this, chunk)
    out.push(thing)
  }
  return Buffer.concat(out)
}
Decipher.prototype._final = function () {
  var chunk = this._cache.flush()
  if (this._autopadding) {
    return unpad(this._mode.decrypt(this, chunk))
  } else if (chunk) {
    throw new Error('data not multiple of block length')
  }
}
Decipher.prototype.setAutoPadding = function (setTo) {
  this._autopadding = !!setTo
}
function Splitter () {
  if (!(this instanceof Splitter)) {
    return new Splitter()
  }
  this.cache = new Buffer('')
}
Splitter.prototype.add = function (data) {
  this.cache = Buffer.concat([this.cache, data])
}

Splitter.prototype.get = function (autoPadding) {
  var out
  if (autoPadding) {
    if (this.cache.length > 16) {
      out = this.cache.slice(0, 16)
      this.cache = this.cache.slice(16)
      return out
    }
  } else {
    if (this.cache.length >= 16) {
      out = this.cache.slice(0, 16)
      this.cache = this.cache.slice(16)
      return out
    }
  }
  return null
}
Splitter.prototype.flush = function () {
  if (this.cache.length) {
    return this.cache
  }
}
function unpad (last) {
  var padded = last[15]
  var i = -1
  while (++i < padded) {
    if (last[(i + (16 - padded))] !== padded) {
      throw new Error('unable to decrypt data')
    }
  }
  if (padded === 16) {
    return
  }
  return last.slice(0, 16 - padded)
}

var modelist = {
  ECB: require('./modes/ecb'),
  CBC: require('./modes/cbc'),
  CFB: require('./modes/cfb'),
  CFB8: require('./modes/cfb8'),
  CFB1: require('./modes/cfb1'),
  OFB: require('./modes/ofb'),
  CTR: require('./modes/ctr'),
  GCM: require('./modes/ctr')
}

function createDecipheriv (suite, password, iv) {
  var config = modes[suite.toLowerCase()]
  if (!config) {
    throw new TypeError('invalid suite type')
  }
  if (typeof iv === 'string') {
    iv = new Buffer(iv)
  }
  if (typeof password === 'string') {
    password = new Buffer(password)
  }
  if (password.length !== config.key / 8) {
    throw new TypeError('invalid key length ' + password.length)
  }
  if (iv.length !== config.iv) {
    throw new TypeError('invalid iv length ' + iv.length)
  }
  if (config.type === 'stream') {
    return new StreamCipher(modelist[config.mode], password, iv, true)
  } else if (config.type === 'auth') {
    return new AuthCipher(modelist[config.mode], password, iv, true)
  }
  return new Decipher(modelist[config.mode], password, iv)
}

function createDecipher (suite, password) {
  var config = modes[suite.toLowerCase()]
  if (!config) {
    throw new TypeError('invalid suite type')
  }
  var keys = ebtk(password, false, config.key, config.iv)
  return createDecipheriv(suite, keys.key, keys.iv)
}
exports.createDecipher = createDecipher
exports.createDecipheriv = createDecipheriv

}).call(this,require("buffer").Buffer)
},{"./aes":24,"./authCipher":25,"./modes":30,"./modes/cbc":31,"./modes/cfb":32,"./modes/cfb1":33,"./modes/cfb8":34,"./modes/ctr":35,"./modes/ecb":36,"./modes/ofb":37,"./streamCipher":40,"buffer":18,"cipher-base":39,"evp_bytestokey":51,"inherits":210}],28:[function(require,module,exports){
(function (Buffer){
var aes = require('./aes')
var Transform = require('cipher-base')
var inherits = require('inherits')
var modes = require('./modes')
var ebtk = require('evp_bytestokey')
var StreamCipher = require('./streamCipher')
var AuthCipher = require('./authCipher')
inherits(Cipher, Transform)
function Cipher (mode, key, iv) {
  if (!(this instanceof Cipher)) {
    return new Cipher(mode, key, iv)
  }
  Transform.call(this)
  this._cache = new Splitter()
  this._cipher = new aes.AES(key)
  this._prev = new Buffer(iv.length)
  iv.copy(this._prev)
  this._mode = mode
  this._autopadding = true
}
Cipher.prototype._update = function (data) {
  this._cache.add(data)
  var chunk
  var thing
  var out = []
  while ((chunk = this._cache.get())) {
    thing = this._mode.encrypt(this, chunk)
    out.push(thing)
  }
  return Buffer.concat(out)
}
Cipher.prototype._final = function () {
  var chunk = this._cache.flush()
  if (this._autopadding) {
    chunk = this._mode.encrypt(this, chunk)
    this._cipher.scrub()
    return chunk
  } else if (chunk.toString('hex') !== '10101010101010101010101010101010') {
    this._cipher.scrub()
    throw new Error('data not multiple of block length')
  }
}
Cipher.prototype.setAutoPadding = function (setTo) {
  this._autopadding = !!setTo
}

function Splitter () {
  if (!(this instanceof Splitter)) {
    return new Splitter()
  }
  this.cache = new Buffer('')
}
Splitter.prototype.add = function (data) {
  this.cache = Buffer.concat([this.cache, data])
}

Splitter.prototype.get = function () {
  if (this.cache.length > 15) {
    var out = this.cache.slice(0, 16)
    this.cache = this.cache.slice(16)
    return out
  }
  return null
}
Splitter.prototype.flush = function () {
  var len = 16 - this.cache.length
  var padBuff = new Buffer(len)

  var i = -1
  while (++i < len) {
    padBuff.writeUInt8(len, i)
  }
  var out = Buffer.concat([this.cache, padBuff])
  return out
}
var modelist = {
  ECB: require('./modes/ecb'),
  CBC: require('./modes/cbc'),
  CFB: require('./modes/cfb'),
  CFB8: require('./modes/cfb8'),
  CFB1: require('./modes/cfb1'),
  OFB: require('./modes/ofb'),
  CTR: require('./modes/ctr'),
  GCM: require('./modes/ctr')
}

function createCipheriv (suite, password, iv) {
  var config = modes[suite.toLowerCase()]
  if (!config) {
    throw new TypeError('invalid suite type')
  }
  if (typeof iv === 'string') {
    iv = new Buffer(iv)
  }
  if (typeof password === 'string') {
    password = new Buffer(password)
  }
  if (password.length !== config.key / 8) {
    throw new TypeError('invalid key length ' + password.length)
  }
  if (iv.length !== config.iv) {
    throw new TypeError('invalid iv length ' + iv.length)
  }
  if (config.type === 'stream') {
    return new StreamCipher(modelist[config.mode], password, iv)
  } else if (config.type === 'auth') {
    return new AuthCipher(modelist[config.mode], password, iv)
  }
  return new Cipher(modelist[config.mode], password, iv)
}
function createCipher (suite, password) {
  var config = modes[suite.toLowerCase()]
  if (!config) {
    throw new TypeError('invalid suite type')
  }
  var keys = ebtk(password, false, config.key, config.iv)
  return createCipheriv(suite, keys.key, keys.iv)
}

exports.createCipheriv = createCipheriv
exports.createCipher = createCipher

}).call(this,require("buffer").Buffer)
},{"./aes":24,"./authCipher":25,"./modes":30,"./modes/cbc":31,"./modes/cfb":32,"./modes/cfb1":33,"./modes/cfb8":34,"./modes/ctr":35,"./modes/ecb":36,"./modes/ofb":37,"./streamCipher":40,"buffer":18,"cipher-base":39,"evp_bytestokey":51,"inherits":210}],29:[function(require,module,exports){
(function (Buffer){
var zeros = new Buffer(16)
zeros.fill(0)
module.exports = GHASH
function GHASH (key) {
  this.h = key
  this.state = new Buffer(16)
  this.state.fill(0)
  this.cache = new Buffer('')
}
// from http://bitwiseshiftleft.github.io/sjcl/doc/symbols/src/core_gcm.js.html
// by Juho Vähä-Herttua
GHASH.prototype.ghash = function (block) {
  var i = -1
  while (++i < block.length) {
    this.state[i] ^= block[i]
  }
  this._multiply()
}

GHASH.prototype._multiply = function () {
  var Vi = toArray(this.h)
  var Zi = [0, 0, 0, 0]
  var j, xi, lsb_Vi
  var i = -1
  while (++i < 128) {
    xi = (this.state[~~(i / 8)] & (1 << (7 - i % 8))) !== 0
    if (xi) {
      // Z_i+1 = Z_i ^ V_i
      Zi = xor(Zi, Vi)
    }

    // Store the value of LSB(V_i)
    lsb_Vi = (Vi[3] & 1) !== 0

    // V_i+1 = V_i >> 1
    for (j = 3; j > 0; j--) {
      Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31)
    }
    Vi[0] = Vi[0] >>> 1

    // If LSB(V_i) is 1, V_i+1 = (V_i >> 1) ^ R
    if (lsb_Vi) {
      Vi[0] = Vi[0] ^ (0xe1 << 24)
    }
  }
  this.state = fromArray(Zi)
}
GHASH.prototype.update = function (buf) {
  this.cache = Buffer.concat([this.cache, buf])
  var chunk
  while (this.cache.length >= 16) {
    chunk = this.cache.slice(0, 16)
    this.cache = this.cache.slice(16)
    this.ghash(chunk)
  }
}
GHASH.prototype.final = function (abl, bl) {
  if (this.cache.length) {
    this.ghash(Buffer.concat([this.cache, zeros], 16))
  }
  this.ghash(fromArray([
    0, abl,
    0, bl
  ]))
  return this.state
}

function toArray (buf) {
  return [
    buf.readUInt32BE(0),
    buf.readUInt32BE(4),
    buf.readUInt32BE(8),
    buf.readUInt32BE(12)
  ]
}
function fromArray (out) {
  out = out.map(fixup_uint32)
  var buf = new Buffer(16)
  buf.writeUInt32BE(out[0], 0)
  buf.writeUInt32BE(out[1], 4)
  buf.writeUInt32BE(out[2], 8)
  buf.writeUInt32BE(out[3], 12)
  return buf
}
var uint_max = Math.pow(2, 32)
function fixup_uint32 (x) {
  var ret, x_pos
  ret = x > uint_max || x < 0 ? (x_pos = Math.abs(x) % uint_max, x < 0 ? uint_max - x_pos : x_pos) : x
  return ret
}
function xor (a, b) {
  return [
    a[0] ^ b[0],
    a[1] ^ b[1],
    a[2] ^ b[2],
    a[3] ^ b[3]
  ]
}

}).call(this,require("buffer").Buffer)
},{"buffer":18}],30:[function(require,module,exports){
exports['aes-128-ecb'] = {
  cipher: 'AES',
  key: 128,
  iv: 0,
  mode: 'ECB',
  type: 'block'
}
exports['aes-192-ecb'] = {
  cipher: 'AES',
  key: 192,
  iv: 0,
  mode: 'ECB',
  type: 'block'
}
exports['aes-256-ecb'] = {
  cipher: 'AES',
  key: 256,
  iv: 0,
  mode: 'ECB',
  type: 'block'
}
exports['aes-128-cbc'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'CBC',
  type: 'block'
}
exports['aes-192-cbc'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'CBC',
  type: 'block'
}
exports['aes-256-cbc'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'CBC',
  type: 'block'
}
exports['aes128'] = exports['aes-128-cbc']
exports['aes192'] = exports['aes-192-cbc']
exports['aes256'] = exports['aes-256-cbc']
exports['aes-128-cfb'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'CFB',
  type: 'stream'
}
exports['aes-192-cfb'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'CFB',
  type: 'stream'
}
exports['aes-256-cfb'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'CFB',
  type: 'stream'
}
exports['aes-128-cfb8'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'CFB8',
  type: 'stream'
}
exports['aes-192-cfb8'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'CFB8',
  type: 'stream'
}
exports['aes-256-cfb8'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'CFB8',
  type: 'stream'
}
exports['aes-128-cfb1'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'CFB1',
  type: 'stream'
}
exports['aes-192-cfb1'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'CFB1',
  type: 'stream'
}
exports['aes-256-cfb1'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'CFB1',
  type: 'stream'
}
exports['aes-128-ofb'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'OFB',
  type: 'stream'
}
exports['aes-192-ofb'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'OFB',
  type: 'stream'
}
exports['aes-256-ofb'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'OFB',
  type: 'stream'
}
exports['aes-128-ctr'] = {
  cipher: 'AES',
  key: 128,
  iv: 16,
  mode: 'CTR',
  type: 'stream'
}
exports['aes-192-ctr'] = {
  cipher: 'AES',
  key: 192,
  iv: 16,
  mode: 'CTR',
  type: 'stream'
}
exports['aes-256-ctr'] = {
  cipher: 'AES',
  key: 256,
  iv: 16,
  mode: 'CTR',
  type: 'stream'
}
exports['aes-128-gcm'] = {
  cipher: 'AES',
  key: 128,
  iv: 12,
  mode: 'GCM',
  type: 'auth'
}
exports['aes-192-gcm'] = {
  cipher: 'AES',
  key: 192,
  iv: 12,
  mode: 'GCM',
  type: 'auth'
}
exports['aes-256-gcm'] = {
  cipher: 'AES',
  key: 256,
  iv: 12,
  mode: 'GCM',
  type: 'auth'
}

},{}],31:[function(require,module,exports){
var xor = require('buffer-xor')

exports.encrypt = function (self, block) {
  var data = xor(block, self._prev)

  self._prev = self._cipher.encryptBlock(data)
  return self._prev
}

exports.decrypt = function (self, block) {
  var pad = self._prev

  self._prev = block
  var out = self._cipher.decryptBlock(block)

  return xor(out, pad)
}

},{"buffer-xor":38}],32:[function(require,module,exports){
(function (Buffer){
var xor = require('buffer-xor')

exports.encrypt = function (self, data, decrypt) {
  var out = new Buffer('')
  var len

  while (data.length) {
    if (self._cache.length === 0) {
      self._cache = self._cipher.encryptBlock(self._prev)
      self._prev = new Buffer('')
    }

    if (self._cache.length <= data.length) {
      len = self._cache.length
      out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)])
      data = data.slice(len)
    } else {
      out = Buffer.concat([out, encryptStart(self, data, decrypt)])
      break
    }
  }

  return out
}
function encryptStart (self, data, decrypt) {
  var len = data.length
  var out = xor(data, self._cache)
  self._cache = self._cache.slice(len)
  self._prev = Buffer.concat([self._prev, decrypt ? data : out])
  return out
}

}).call(this,require("buffer").Buffer)
},{"buffer":18,"buffer-xor":38}],33:[function(require,module,exports){
(function (Buffer){
function encryptByte (self, byteParam, decrypt) {
  var pad
  var i = -1
  var len = 8
  var out = 0
  var bit, value
  while (++i < len) {
    pad = self._cipher.encryptBlock(self._prev)
    bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0
    value = pad[0] ^ bit
    out += ((value & 0x80) >> (i % 8))
    self._prev = shiftIn(self._prev, decrypt ? bit : value)
  }
  return out
}
exports.encrypt = function (self, chunk, decrypt) {
  var len = chunk.length
  var out = new Buffer(len)
  var i = -1
  while (++i < len) {
    out[i] = encryptByte(self, chunk[i], decrypt)
  }
  return out
}
function shiftIn (buffer, value) {
  var len = buffer.length
  var i = -1
  var out = new Buffer(buffer.length)
  buffer = Buffer.concat([buffer, new Buffer([value])])
  while (++i < len) {
    out[i] = buffer[i] << 1 | buffer[i + 1] >> (7)
  }
  return out
}

}).call(this,require("buffer").Buffer)
},{"buffer":18}],34:[function(require,module,exports){
(function (Buffer){
function encryptByte (self, byteParam, decrypt) {
  var pad = self._cipher.encryptBlock(self._prev)
  var out = pad[0] ^ byteParam
  self._prev = Buffer.concat([self._prev.slice(1), new Buffer([decrypt ? byteParam : out])])
  return out
}
exports.encrypt = function (self, chunk, decrypt) {
  var len = chunk.length
  var out = new Buffer(len)
  var i = -1
  while (++i < len) {
    out[i] = encryptByte(self, chunk[i], decrypt)
  }
  return out
}

}).call(this,require("buffer").Buffer)
},{"buffer":18}],35:[function(require,module,exports){
(function (Buffer){
var xor = require('buffer-xor')

function incr32 (iv) {
  var len = iv.length
  var item
  while (len--) {
    item = iv.readUInt8(len)
    if (item === 255) {
      iv.writeUInt8(0, len)
    } else {
      item++
      iv.writeUInt8(item, len)
      break
    }
  }
}

function getBlock (self) {
  var out = self._cipher.encryptBlock(self._prev)
  incr32(self._prev)
  return out
}

exports.encrypt = function (self, chunk) {
  while (self._cache.length < chunk.length) {
    self._cache = Buffer.concat([self._cache, getBlock(self)])
  }
  var pad = self._cache.slice(0, chunk.length)
  self._cache = self._cache.slice(chunk.length)
  return xor(chunk, pad)
}

}).call(this,require("buffer").Buffer)
},{"buffer":18,"buffer-xor":38}],36:[function(require,module,exports){
exports.encrypt = function (self, block) {
  return self._cipher.encryptBlock(block)
}
exports.decrypt = function (self, block) {
  return self._cipher.decryptBlock(block)
}

},{}],37:[function(require,module,exports){
(function (Buffer){
var xor = require('buffer-xor')

function getBlock (self) {
  self._prev = self._cipher.encryptBlock(self._prev)
  return self._prev
}

exports.encrypt = function (self, chunk) {
  while (self._cache.length < chunk.length) {
    self._cache = Buffer.concat([self._cache, getBlock(self)])
  }

  var pad = self._cache.slice(0, chunk.length)
  self._cache = self._cache.slice(chunk.length)
  return xor(chunk, pad)
}

}).call(this,require("buffer").Buffer)
},{"buffer":18,"buffer-xor":38}],38:[function(require,module,exports){
(function (Buffer){
module.exports = function xor (a, b) {
  var length = Math.min(a.length, b.length)
  var buffer = new Buffer(length)

  for (var i = 0; i < length; ++i) {
    buffer[i] = a[i] ^ b[i]
  }

  return buffer
}

}).call(this,require("buffer").Buffer)
},{"buffer":18}],39:[function(require,module,exports){
(function (Buffer){
var Transform = require('stream').Transform
var inherits = require('inherits')
var StringDecoder = require('string_decoder').StringDecoder
module.exports = CipherBase
inherits(CipherBase, Transform)
function CipherBase (hashMode) {
  Transform.call(this)
  this.hashMode = typeof hashMode === 'string'
  if (this.hashMode) {
    this[hashMode] = this._finalOrDigest
  } else {
    this.final = this._finalOrDigest
  }
  this._decoder = null
  this._encoding = null
}
CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
  if (typeof data === 'string') {
    data = new Buffer(data, inputEnc)
  }
  var outData = this._update(data)
  if (this.hashMode) {
    return this
  }
  if (outputEnc) {
    outData = this._toString(outData, outputEnc)
  }
  return outData
}

CipherBase.prototype.setAutoPadding = function () {}

CipherBase.prototype.getAuthTag = function () {
  throw new Error('trying to get auth tag in unsupported state')
}

CipherBase.prototype.setAuthTag = function () {
  throw new Error('trying to set auth tag in unsupported state')
}

CipherBase.prototype.setAAD = function () {
  throw new Error('trying to set aad in unsupported state')
}

CipherBase.prototype._transform = function (data, _, next) {
  var err
  try {
    if (this.hashMode) {
      this._update(data)
    } else {
      this.push(this._update(data))
    }
  } catch (e) {
    err = e
  } finally {
    next(err)
  }
}
CipherBase.prototype._flush = function (done) {
  var err
  try {
    this.push(this._final())
  } catch (e) {
    err = e
  } finally {
    done(err)
  }
}
CipherBase.prototype._finalOrDigest = function (outputEnc) {
  var outData = this._final() || new Buffer('')
  if (outputEnc) {
    outData = this._toString(outData, outputEnc, true)
  }
  return outData
}

CipherBase.prototype._toString = function (value, enc, final) {
  if (!this._decoder) {
    this._decoder = new StringDecoder(enc)
    this._encoding = enc
  }
  if (this._encoding !== enc) {
    throw new Error('can\'t switch encodings')
  }
  var out = this._decoder.write(value)
  if (final) {
    out += this._decoder.end()
  }
  return out
}

}).call(this,require("buffer").Buffer)
},{"buffer":18,"inherits":210,"stream":233,"string_decoder":243}],40:[function(require,module,exports){
(function (Buffer){
var aes = require('./aes')
var Transform = require('cipher-base')
var inherits = require('inherits')

inherits(StreamCipher, Transform)
module.exports = StreamCipher
function StreamCipher (mode, key, iv, decrypt) {
  if (!(this instanceof StreamCipher)) {
    return new StreamCipher(mode, key, iv)
  }
  Transform.call(this)
  this._cipher = new aes.AES(key)
  this._prev = new Buffer(iv.length)
  this._cache = new Buffer('')
  this._secCache = new Buffer('')
  this._decrypt = decrypt
  iv.copy(this._prev)
  this._mode = mode
}
StreamCipher.prototype._update = function (chunk) {
  return this._mode.encrypt(this, chunk, this._decrypt)
}
StreamCipher.prototype._final = function () {
  this._cipher.scrub()
}

}).call(this,require("buffer").Buffer)
},{"./aes":24,"buffer":18,"cipher-base":39,"inherits":210}],41:[function(require,module,exports){
(function (Buffer){
var CipherBase = require('cipher-base')
var des = require('des.js')
var inherits = require('inherits')

var modes = {
  'des-ede3-cbc': des.CBC.instantiate(des.EDE),
  'des-ede3': des.EDE,
  'des-ede-cbc': des.CBC.instantiate(des.EDE),
  'des-ede': des.EDE,
  'des-cbc': des.CBC.instantiate(des.DES),
  'des-ecb': des.DES
}
modes.des = modes['des-cbc']
modes.des3 = modes['des-ede3-cbc']
module.exports = DES
inherits(DES, CipherBase)
function DES (opts) {
  CipherBase.call(this)
  var modeName = opts.mode.toLowerCase()
  var mode = modes[modeName]
  var type
  if (opts.decrypt) {
    type = 'decrypt'
  } else {
    type = 'encrypt'
  }
  var key = opts.key
  if (modeName === 'des-ede' || modeName === 'des-ede-cbc') {
    key = Buffer.concat([key, key.slice(0, 8)])
  }
  var iv = opts.iv
  this._des = mode.create({
    key: key,
    iv: iv,
    type: type
  })
}
DES.prototype._update = function (data) {
  return new Buffer(this._des.update(data))
}
DES.prototype._final = function () {
  return new Buffer(this._des.final())
}

}).call(this,require("buffer").Buffer)
},{"buffer":18,"cipher-base":43,"des.js":44,"inherits":210}],42:[function(require,module,exports){
exports['des-ecb'] = {
  key: 8,
  iv: 0
}
exports['des-cbc'] = exports.des = {
  key: 8,
  iv: 8
}
exports['des-ede3-cbc'] = exports.des3 = {
  key: 24,
  iv: 8
}
exports['des-ede3'] = {
  key: 24,
  iv: 0
}
exports['des-ede-cbc'] = {
  key: 16,
  iv: 8
}
exports['des-ede'] = {
  key: 16,
  iv: 0
}

},{}],43:[function(require,module,exports){
arguments[4][39][0].apply(exports,arguments)
},{"buffer":18,"dup":39,"inherits":210,"stream":233,"string_decoder":243}],44:[function(require,module,exports){
'use strict';

exports.utils = require('./des/utils');
exports.Cipher = require('./des/cipher');
exports.DES = require('./des/des');
exports.CBC = require('./des/cbc');
exports.EDE = require('./des/ede');

},{"./des/cbc":45,"./des/cipher":46,"./des/des":47,"./des/ede":48,"./des/utils":49}],45:[function(require,module,exports){
'use strict';

var assert = require('minimalistic-assert');
var inherits = require('inherits');

var proto = {};

function CBCState(iv) {
  assert.equal(iv.length, 8, 'Invalid IV length');

  this.iv = new Array(8);
  for (var i = 0; i < this.iv.length; i++)
    this.iv[i] = iv[i];
}

function instantiate(Base) {
  function CBC(options) {
    Base.call(this, options);
    this._cbcInit();
  }
  inherits(CBC, Base);

  var keys = Object.keys(proto);
  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    CBC.prototype[key] = proto[key];
  }

  CBC.create = function create(options) {
    return new CBC(options);
  };

  return CBC;
}

exports.instantiate = instantiate;

proto._cbcInit = function _cbcInit() {
  var state = new CBCState(this.options.iv);
  this._cbcState = state;
};

proto._update = function _update(inp, inOff, out, outOff) {
  var state = this._cbcState;
  var superProto = this.constructor.super_.prototype;

  var iv = state.iv;
  if (this.type === 'encrypt') {
    for (var i = 0; i < this.blockSize; i++)
      iv[i] ^= inp[inOff + i];

    superProto._update.call(this, iv, 0, out, outOff);

    for (var i = 0; i < this.blockSize; i++)
      iv[i] = out[outOff + i];
  } else {
    superProto._update.call(this, inp, inOff, out, outOff);

    for (var i = 0; i < this.blockSize; i++)
      out[outOff + i] ^= iv[i];

    for (var i = 0; i < this.blockSize; i++)
      iv[i] = inp[inOff + i];
  }
};

},{"inherits":210,"minimalistic-assert":50}],46:[function(require,module,exports){
'use strict';

var assert = require('minimalistic-assert');

function Cipher(options) {
  this.options = options;

  this.type = this.options.type;
  this.blockSize = 8;
  this._init();

  this.buffer = new Array(this.blockSize);
  this.bufferOff = 0;
}
module.exports = Cipher;

Cipher.prototype._init = function _init() {
  // Might be overrided
};

Cipher.prototype.update = function update(data) {
  if (data.length === 0)
    return [];

  if (this.type === 'decrypt')
    return this._updateDecrypt(data);
  else
    return this._updateEncrypt(data);
};

Cipher.prototype._buffer = function _buffer(data, off) {
  // Append data to buffer
  var min = Math.min(this.buffer.length - this.bufferOff, data.length - off);
  for (var i = 0; i < min; i++)
    this.buffer[this.bufferOff + i] = data[off + i];
  this.bufferOff += min;

  // Shift next
  return min;
};

Cipher.prototype._flushBuffer = function _flushBuffer(out, off) {
  this._update(this.buffer, 0, out, off);
  this.bufferOff = 0;
  return this.blockSize;
};

Cipher.prototype._updateEncrypt = function _updateEncrypt(data) {
  var inputOff = 0;
  var outputOff = 0;

  var count = ((this.bufferOff + data.length) / this.blockSize) | 0;
  var out = new Array(count * this.blockSize);

  if (this.bufferOff !== 0) {
    inputOff += this._buffer(data, inputOff);

    if (this.bufferOff === this.buffer.length)
      outputOff += this._flushBuffer(out, outputOff);
  }

  // Write blocks
  var max = data.length - ((data.length - inputOff) % this.blockSize);
  for (; inputOff < max; inputOff += this.blockSize) {
    this._update(data, inputOff, out, outputOff);
    outputOff += this.blockSize;
  }

  // Queue rest
  for (; inputOff < data.length; inputOff++, this.bufferOff++)
    this.buffer[this.bufferOff] = data[inputOff];

  return out;
};

Cipher.prototype._updateDecrypt = function _updateDecrypt(data) {
  var inputOff = 0;
  var outputOff = 0;

  var count = Math.ceil((this.bufferOff + data.length) / this.blockSize) - 1;
  var out = new Array(count * this.blockSize);

  // TODO(indutny): optimize it, this is far from optimal
  for (; count > 0; count--) {
    inputOff += this._buffer(data, inputOff);
    outputOff += this._flushBuffer(out, outputOff);
  }

  // Buffer rest of the input
  inputOff += this._buffer(data, inputOff);

  return out;
};

Cipher.prototype.final = function final(buffer) {
  var first;
  if (buffer)
    first = this.update(buffer);

  var last;
  if (this.type === 'encrypt')
    last = this._finalEncrypt();
  else
    last = this._finalDecrypt();

  if (first)
    return first.concat(last);
  else
    return last;
};

Cipher.prototype._pad = function _pad(buffer, off) {
  if (off === 0)
    return false;

  while (off < buffer.length)
    buffer[off++] = 0;

  return true;
};

Cipher.prototype._finalEncrypt = function _finalEncrypt() {
  if (!this._pad(this.buffer, this.bufferOff))
    return [];

  var out = new Array(this.blockSize);
  this._update(this.buffer, 0, out, 0);
  return out;
};

Cipher.prototype._unpad = function _unpad(buffer) {
  return buffer;
};

Cipher.prototype._finalDecrypt = function _finalDecrypt() {
  assert.equal(this.bufferOff, this.blockSize, 'Not enough data to decrypt');
  var out = new Array(this.blockSize);
  this._flushBuffer(out, 0);

  return this._unpad(out);
};

},{"minimalistic-assert":50}],47:[function(require,module,exports){
'use strict';

var assert = require('minimalistic-assert');
var inherits = require('inherits');

var des = require('../des');
var utils = des.utils;
var Cipher = des.Cipher;

function DESState() {
  this.tmp = new Array(2);
  this.keys = null;
}

function DES(options) {
  Cipher.call(this, options);

  var state = new DESState();
  this._desState = state;

  this.deriveKeys(state, options.key);
}
inherits(DES, Cipher);
module.exports = DES;

DES.create = function create(options) {
  return new DES(options);
};

var shiftTable = [
  1, 1, 2, 2, 2, 2, 2, 2,
  1, 2, 2, 2, 2, 2, 2, 1
];

DES.prototype.deriveKeys = function deriveKeys(state, key) {
  state.keys = new Array(16 * 2);

  assert.equal(key.length, this.blockSize, 'Invalid key length');

  var kL = utils.readUInt32BE(key, 0);
  var kR = utils.readUInt32BE(key, 4);

  utils.pc1(kL, kR, state.tmp, 0);
  kL = state.tmp[0];
  kR = state.tmp[1];
  for (var i = 0; i < state.keys.length; i += 2) {
    var shift = shiftTable[i >>> 1];
    kL = utils.r28shl(kL, shift);
    kR = utils.r28shl(kR, shift);
    utils.pc2(kL, kR, state.keys, i);
  }
};

DES.prototype._update = function _update(inp, inOff, out, outOff) {
  var state = this._desState;

  var l = utils.readUInt32BE(inp, inOff);
  var r = utils.readUInt32BE(inp, inOff + 4);

  // Initial Permutation
  utils.ip(l, r, state.tmp, 0);
  l = state.tmp[0];
  r = state.tmp[1];

  if (this.type === 'encrypt')
    this._encrypt(state, l, r, state.tmp, 0);
  else
    this._decrypt(state, l, r, state.tmp, 0);

  l = state.tmp[0];
  r = state.tmp[1];

  utils.writeUInt32BE(out, l, outOff);
  utils.writeUInt32BE(out, r, outOff + 4);
};

DES.prototype._pad = function _pad(buffer, off) {
  var value = buffer.length - off;
  for (var i = off; i < buffer.length; i++)
    buffer[i] = value;

  return true;
};

DES.prototype._unpad = function _unpad(buffer) {
  var pad = buffer[buffer.length - 1];
  for (var i = buffer.length - pad; i < buffer.length; i++)
    assert.equal(buffer[i], pad);

  return buffer.slice(0, buffer.length - pad);
};

DES.prototype._encrypt = function _encrypt(state, lStart, rStart, out, off) {
  var l = lStart;
  var r = rStart;

  // Apply f() x16 times
  for (var i = 0; i < state.keys.length; i += 2) {
    var keyL = state.keys[i];
    var keyR = state.keys[i + 1];

    // f(r, k)
    utils.expand(r, state.tmp, 0);

    keyL ^= state.tmp[0];
    keyR ^= state.tmp[1];
    var s = utils.substitute(keyL, keyR);
    var f = utils.permute(s);

    var t = r;
    r = (l ^ f) >>> 0;
    l = t;
  }

  // Reverse Initial Permutation
  utils.rip(r, l, out, off);
};

DES.prototype._decrypt = function _decrypt(state, lStart, rStart, out, off) {
  var l = rStart;
  var r = lStart;

  // Apply f() x16 times
  for (var i = state.keys.length - 2; i >= 0; i -= 2) {
    var keyL = state.keys[i];
    var keyR = state.keys[i + 1];

    // f(r, k)
    utils.expand(l, state.tmp, 0);

    keyL ^= state.tmp[0];
    keyR ^= state.tmp[1];
    var s = utils.substitute(keyL, keyR);
    var f = utils.permute(s);

    var t = l;
    l = (r ^ f) >>> 0;
    r = t;
  }

  // Reverse Initial Permutation
  utils.rip(l, r, out, off);
};

},{"../des":44,"inherits":210,"minimalistic-assert":50}],48:[function(require,module,exports){
'use strict';

var assert = require('minimalistic-assert');
var inherits = require('inherits');

var des = require('../des');
var Cipher = des.Cipher;
var DES = des.DES;

function EDEState(type, key) {
  assert.equal(key.length, 24, 'Invalid key length');

  var k1 = key.slice(0, 8);
  var k2 = key.slice(8, 16);
  var k3 = key.slice(16, 24);

  if (type === 'encrypt') {
    this.ciphers = [
      DES.create({ type: 'encrypt', key: k1 }),
      DES.create({ type: 'decrypt', key: k2 }),
      DES.create({ type: 'encrypt', key: k3 })
    ];
  } else {
    this.ciphers = [
      DES.create({ type: 'decrypt', key: k3 }),
      DES.create({ type: 'encrypt', key: k2 }),
      DES.create({ type: 'decrypt', key: k1 })
    ];
  }
}

function EDE(options) {
  Cipher.call(this, options);

  var state = new EDEState(this.type, this.options.key);
  this._edeState = state;
}
inherits(EDE, Cipher);

module.exports = EDE;

EDE.create = function create(options) {
  return new EDE(options);
};

EDE.prototype._update = function _update(inp, inOff, out, outOff) {
  var state = this._edeState;

  state.ciphers[0]._update(inp, inOff, out, outOff);
  state.ciphers[1]._update(out, outOff, out, outOff);
  state.ciphers[2]._update(out, outOff, out, outOff);
};

EDE.prototype._pad = DES.prototype._pad;
EDE.prototype._unpad = DES.prototype._unpad;

},{"../des":44,"inherits":210,"minimalistic-assert":50}],49:[function(require,module,exports){
'use strict';

exports.readUInt32BE = function readUInt32BE(bytes, off) {
  var res =  (bytes[0 + off] << 24) |
             (bytes[1 + off] << 16) |
             (bytes[2 + off] << 8) |
             bytes[3 + off];
  return res >>> 0;
};

exports.writeUInt32BE = function writeUInt32BE(bytes, value, off) {
  bytes[0 + off] = value >>> 24;
  bytes[1 + off] = (value >>> 16) & 0xff;
  bytes[2 + off] = (value >>> 8) & 0xff;
  bytes[3 + off] = value & 0xff;
};

exports.ip = function ip(inL, inR, out, off) {
  var outL = 0;
  var outR = 0;

  for (var i = 6; i >= 0; i -= 2) {
    for (var j = 0; j <= 24; j += 8) {
      outL <<= 1;
      outL |= (inR >>> (j + i)) & 1;
    }
    for (var j = 0; j <= 24; j += 8) {
      outL <<= 1;
      outL |= (inL >>> (j + i)) & 1;
    }
  }

  for (var i = 6; i >= 0; i -= 2) {
    for (var j = 1; j <= 25; j += 8) {
      outR <<= 1;
      outR |= (inR >>> (j + i)) & 1;
    }
    for (var j = 1; j <= 25; j += 8) {
      outR <<= 1;
      outR |= (inL >>> (j + i)) & 1;
    }
  }

  out[off + 0] = outL >>> 0;
  out[off + 1] = outR >>> 0;
};

exports.rip = function rip(inL, inR, out, off) {
  var outL = 0;
  var outR = 0;

  for (var i = 0; i < 4; i++) {
    for (var j = 24; j >= 0; j -= 8) {
      outL <<= 1;
      outL |= (inR >>> (j + i)) & 1;
      outL <<= 1;
      outL |= (inL >>> (j + i)) & 1;
    }
  }
  for (var i = 4; i < 8; i++) {
    for (var j = 24; j >= 0; j -= 8) {
      outR <<= 1;
      outR |= (inR >>> (j + i)) & 1;
      outR <<= 1;
      outR |= (inL >>> (j + i)) & 1;
    }
  }

  out[off + 0] = outL >>> 0;
  out[off + 1] = outR >>> 0;
};

exports.pc1 = function pc1(inL, inR, out, off) {
  var outL = 0;
  var outR = 0;

  // 7, 15, 23, 31, 39, 47, 55, 63
  // 6, 14, 22, 30, 39, 47, 55, 63
  // 5, 13, 21, 29, 39, 47, 55, 63
  // 4, 12, 20, 28
  for (var i = 7; i >= 5; i--) {
    for (var j = 0; j <= 24; j += 8) {
      outL <<= 1;
      outL |= (inR >> (j + i)) & 1;
    }
    for (var j = 0; j <= 24; j += 8) {
      outL <<= 1;
      outL |= (inL >> (j + i)) & 1;
    }
  }
  for (var j = 0; j <= 24; j += 8) {
    outL <<= 1;
    outL |= (inR >> (j + i)) & 1;
  }

  // 1, 9, 17, 25, 33, 41, 49, 57
  // 2, 10, 18, 26, 34, 42, 50, 58
  // 3, 11, 19, 27, 35, 43, 51, 59
  // 36, 44, 52, 60
  for (var i = 1; i <= 3; i++) {
    for (var j = 0; j <= 24; j += 8) {
      outR <<= 1;
      outR |= (inR >> (j + i)) & 1;
    }
    for (var j = 0; j <= 24; j += 8) {
      outR <<= 1;
      outR |= (inL >> (j + i)) & 1;
    }
  }
  for (var j = 0; j <= 24; j += 8) {
    outR <<= 1;
    outR |= (inL >> (j + i)) & 1;
  }

  out[off + 0] = outL >>> 0;
  out[off + 1] = outR >>> 0;
};

exports.r28shl = function r28shl(num, shift) {
  return ((num << shift) & 0xfffffff) | (num >>> (28 - shift));
};

var pc2table = [
  // inL => outL
  14, 11, 17, 4, 27, 23, 25, 0,
  13, 22, 7, 18, 5, 9, 16, 24,
  2, 20, 12, 21, 1, 8, 15, 26,

  // inR => outR
  15, 4, 25, 19, 9, 1, 26, 16,
  5, 11, 23, 8, 12, 7, 17, 0,
  22, 3, 10, 14, 6, 20, 27, 24
];

exports.pc2 = function pc2(inL, inR, out, off) {
  var outL = 0;
  var outR = 0;

  var len = pc2table.length >>> 1;
  for (var i = 0; i < len; i++) {
    outL <<= 1;
    outL |= (inL >>> pc2table[i]) & 0x1;
  }
  for (var i = len; i < pc2table.length; i++) {
    outR <<= 1;
    outR |= (inR >>> pc2table[i]) & 0x1;
  }

  out[off + 0] = outL >>> 0;
  out[off + 1] = outR >>> 0;
};

exports.expand = function expand(r, out, off) {
  var outL = 0;
  var outR = 0;

  outL = ((r & 1) << 5) | (r >>> 27);
  for (var i = 23; i >= 15; i -= 4) {
    outL <<= 6;
    outL |= (r >>> i) & 0x3f;
  }
  for (var i = 11; i >= 3; i -= 4) {
    outR |= (r >>> i) & 0x3f;
    outR <<= 6;
  }
  outR |= ((r & 0x1f) << 1) | (r >>> 31);

  out[off + 0] = outL >>> 0;
  out[off + 1] = outR >>> 0;
};

var sTable = [
  14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1,
  3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8,
  4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7,
  15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13,

  15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14,
  9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5,
  0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2,
  5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9,

  10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10,
  1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1,
  13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7,
  11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12,

  7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3,
  1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9,
  10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8,
  15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14,

  2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1,
  8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6,
  4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13,
  15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3,

  12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5,
  0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8,
  9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10,
  7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13,

  4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10,
  3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6,
  1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7,
  10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12,

  13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4,
  10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2,
  7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13,
  0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11
];

exports.substitute = function substitute(inL, inR) {
  var out = 0;
  for (var i = 0; i < 4; i++) {
    var b = (inL >>> (18 - i * 6)) & 0x3f;
    var sb = sTable[i * 0x40 + b];

    out <<= 4;
    out |= sb;
  }
  for (var i = 0; i < 4; i++) {
    var b = (inR >>> (18 - i * 6)) & 0x3f;
    var sb = sTable[4 * 0x40 + i * 0x40 + b];

    out <<= 4;
    out |= sb;
  }
  return out >>> 0;
};

var permuteTable = [
  16, 25, 12, 11, 3, 20, 4, 15, 31, 17, 9, 6, 27, 14, 1, 22,
  30, 24, 8, 18, 0, 5, 29, 23, 13, 19, 2, 26, 10, 21, 28, 7
];

exports.permute = function permute(num) {
  var out = 0;
  for (var i = 0; i < permuteTable.length; i++) {
    out <<= 1;
    out |= (num >>> permuteTable[i]) & 0x1;
  }
  return out >>> 0;
};

exports.padSplit = function padSplit(num, size, group) {
  var str = num.toString(2);
  while (str.length < size)
    str = '0' + str;

  var out = [];
  for (var i = 0; i < size; i += group)
    out.push(str.slice(i, i + group));
  return out.join(' ');
};

},{}],50:[function(require,module,exports){
module.exports = assert;

function assert(val, msg) {
  if (!val)
    throw new Error(msg || 'Assertion failed');
}

assert.equal = function assertEqual(l, r, msg) {
  if (l != r)
    throw new Error(msg || ('Assertion failed: ' + l + ' != ' + r));
};

},{}],51:[function(require,module,exports){
(function (Buffer){
var md5 = require('create-hash/md5')
module.exports = EVP_BytesToKey
function EVP_BytesToKey (password, salt, keyLen, ivLen) {
  if (!Buffer.isBuffer(password)) {
    password = new Buffer(password, 'binary')
  }
  if (salt && !Buffer.isBuffer(salt)) {
    salt = new Buffer(salt, 'binary')
  }
  keyLen = keyLen / 8
  ivLen = ivLen || 0
  var ki = 0
  var ii = 0
  var key = new Buffer(keyLen)
  var iv = new Buffer(ivLen)
  var addmd = 0
  var md_buf
  var i
  var bufs = []
  while (true) {
    if (addmd++ > 0) {
      bufs.push(md_buf)
    }
    bufs.push(password)
    if (salt) {
      bufs.push(salt)
    }
    md_buf = md5(Buffer.concat(bufs))
    bufs = []
    i = 0
    if (keyLen > 0) {
      while (true) {
        if (keyLen === 0) {
          break
        }
        if (i === md_buf.length) {
          break
        }
        key[ki++] = md_buf[i]
        keyLen--
        i++
      }
    }
    if (ivLen > 0 && i !== md_buf.length) {
      while (true) {
        if (ivLen === 0) {
          break
        }
        if (i === md_buf.length) {
          break
        }
        iv[ii++] = md_buf[i]
        ivLen--
        i++
      }
    }
    if (keyLen === 0 && ivLen === 0) {
      break
    }
  }
  for (i = 0; i < md_buf.length; i++) {
    md_buf[i] = 0
  }
  return {
    key: key,
    iv: iv
  }
}

}).call(this,require("buffer").Buffer)
},{"buffer":18,"create-hash/md5":142}],52:[function(require,module,exports){
(function (Buffer){
'use strict'
exports['RSA-SHA224'] = exports.sha224WithRSAEncryption = {
  sign: 'rsa',
  hash: 'sha224',
  id: new Buffer('302d300d06096086480165030402040500041c', 'hex')
}
exports['RSA-SHA256'] = exports.sha256WithRSAEncryption = {
  sign: 'rsa',
  hash: 'sha256',
  id: new Buffer('3031300d060960864801650304020105000420', 'hex')
}
exports['RSA-SHA384'] = exports.sha384WithRSAEncryption = {
  sign: 'rsa',
  hash: 'sha384',
  id: new Buffer('3041300d060960864801650304020205000430', 'hex')
}
exports['RSA-SHA512'] = exports.sha512WithRSAEncryption = {
  sign: 'rsa',
  hash: 'sha512',
  id: new Buffer('3051300d060960864801650304020305000440', 'hex')
}
exports['RSA-SHA1'] = {
  sign: 'rsa',
  hash: 'sha1',
  id: new Buffer('3021300906052b0e03021a05000414', 'hex')
}
exports['ecdsa-with-SHA1'] = {
  sign: 'ecdsa',
  hash: 'sha1',
  id: new Buffer('', 'hex')
}
exports.DSA = exports['DSA-SHA1'] = exports['DSA-SHA'] = {
  sign: 'dsa',
  hash: 'sha1',
  id: new Buffer('', 'hex')
}
exports['DSA-SHA224'] = exports['DSA-WITH-SHA224'] = {
  sign: 'dsa',
  hash: 'sha224',
  id: new Buffer('', 'hex')
}
exports['DSA-SHA256'] = exports['DSA-WITH-SHA256'] = {
  sign: 'dsa',
  hash: 'sha256',
  id: new Buffer('', 'hex')
}
exports['DSA-SHA384'] = exports['DSA-WITH-SHA384'] = {
  sign: 'dsa',
  hash: 'sha384',
  id: new Buffer('', 'hex')
}
exports['DSA-SHA512'] = exports['DSA-WITH-SHA512'] = {
  sign: 'dsa',
  hash: 'sha512',
  id: new Buffer('', 'hex')
}
exports['DSA-RIPEMD160'] = {
  sign: 'dsa',
  hash: 'rmd160',
  id: new Buffer('', 'hex')
}
exports['RSA-RIPEMD160'] = exports.ripemd160WithRSA = {
  sign: 'rsa',
  hash: 'rmd160',
  id: new Buffer('3021300906052b2403020105000414', 'hex')
}
exports['RSA-MD5'] = exports.md5WithRSAEncryption = {
  sign: 'rsa',
  hash: 'md5',
  id: new Buffer('3020300c06082a864886f70d020505000410', 'hex')
}

}).call(this,require("buffer").Buffer)
},{"buffer":18}],53:[function(require,module,exports){
(function (Buffer){
var _algos = require('./algos')
var createHash = require('create-hash')
var inherits = require('inherits')
var sign = require('./sign')
var stream = require('stream')
var verify = require('./verify')

var algos = {}
Object.keys(_algos).forEach(function (key) {
  algos[key] = algos[key.toLowerCase()] = _algos[key]
})

function Sign (algorithm) {
  stream.Writable.call(this)

  var data = algos[algorithm]
  if (!data) {
    throw new Error('Unknown message digest')
  }

  this._hashType = data.hash
  this._hash = createHash(data.hash)
  this._tag = data.id
  this._signType = data.sign
}
inherits(Sign, stream.Writable)

Sign.prototype._write = function _write (data, _, done) {
  this._hash.update(data)
  done()
}

Sign.prototype.update = function update (data, enc) {
  if (typeof data === 'string') {
    data = new Buffer(data, enc)
  }

  this._hash.update(data)
  return this
}

Sign.prototype.sign = function signMethod (key, enc) {
  this.end()
  var hash = this._hash.digest()
  var sig = sign(Buffer.concat([this._tag, hash]), key, this._hashType, this._signType)

  return enc ? sig.toString(enc) : sig
}

function Verify (algorithm) {
  stream.Writable.call(this)

  var data = algos[algorithm]
  if (!data) {
    throw new Error('Unknown message digest')
  }

  this._hash = createHash(data.hash)
  this._tag = data.id
  this._signType = data.sign
}
inherits(Verify, stream.Writable)

Verify.prototype._write = function _write (data, _, done) {
  this._hash.update(data)

  done()
}

Verify.prototype.update = function update (data, enc) {
  if (typeof data === 'string') {
    data = new Buffer(data, enc)
  }

  this._hash.update(data)
  return this
}

Verify.prototype.verify = function verifyMethod (key, sig, enc) {
  if (typeof sig === 'string') {
    sig = new Buffer(sig, enc)
  }

  this.end()
  var hash = this._hash.digest()

  return verify(sig, Buffer.concat([this._tag, hash]), key, this._signType)
}

function createSign (algorithm) {
  return new Sign(algorithm)
}

function createVerify (algorithm) {
  return new Verify(algorithm)
}

module.exports = {
  Sign: createSign,
  Verify: createVerify,
  createSign: createSign,
  createVerify: createVerify
}

}).call(this,require("buffer").Buffer)
},{"./algos":52,"./sign":115,"./verify":116,"buffer":18,"create-hash":140,"inherits":210,"stream":233}],54:[function(require,module,exports){
'use strict'
exports['1.3.132.0.10'] = 'secp256k1'

exports['1.3.132.0.33'] = 'p224'

exports['1.2.840.10045.3.1.1'] = 'p192'

exports['1.2.840.10045.3.1.7'] = 'p256'

},{}],55:[function(require,module,exports){
(function (module, exports) {

'use strict';

// Utils

function assert(val, msg) {
  if (!val)
    throw new Error(msg || 'Assertion failed');
}

// Could use `inherits` module, but don't want to move from single file
// architecture yet.
function inherits(ctor, superCtor) {
  ctor.super_ = superCtor;
  var TempCtor = function () {};
  TempCtor.prototype = superCtor.prototype;
  ctor.prototype = new TempCtor();
  ctor.prototype.constructor = ctor;
}

// BN

function BN(number, base, endian) {
  // May be `new BN(bn)` ?
  if (number !== null &&
      typeof number === 'object' &&
      Array.isArray(number.words)) {
    return number;
  }

  this.sign = false;
  this.words = null;
  this.length = 0;

  // Reduction context
  this.red = null;

  if (base === 'le' || base === 'be') {
    endian = base;
    base = 10;
  }

  if (number !== null)
    this._init(number || 0, base || 10, endian || 'be');
}
if (typeof module === 'object')
  module.exports = BN;
else
  exports.BN = BN;

BN.BN = BN;
BN.wordSize = 26;

BN.prototype._init = function init(number, base, endian) {
  if (typeof number === 'number') {
    return this._initNumber(number, base, endian);
  } else if (typeof number === 'object') {
    return this._initArray(number, base, endian);
  }
  if (base === 'hex')
    base = 16;
  assert(base === (base | 0) && base >= 2 && base <= 36);

  number = number.toString().replace(/\s+/g, '');
  var start = 0;
  if (number[0] === '-')
    start++;

  if (base === 16)
    this._parseHex(number, start);
  else
    this._parseBase(number, base, start);

  if (number[0] === '-')
    this.sign = true;

  this.strip();

  if (endian !== 'le')
    return;

  this._initArray(this.toArray(), base, endian);
};

BN.prototype._initNumber = function _initNumber(number, base, endian) {
  if (number < 0) {
    this.sign = true;
    number = -number;
  }
  if (number < 0x4000000) {
    this.words = [ number & 0x3ffffff ];
    this.length = 1;
  } else if (number < 0x10000000000000) {
    this.words = [
      number & 0x3ffffff,
      (number / 0x4000000) & 0x3ffffff
    ];
    this.length = 2;
  } else {
    assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)
    this.words = [
      number & 0x3ffffff,
      (number / 0x4000000) & 0x3ffffff,
      1
    ];
    this.length = 3;
  }

  if (endian !== 'le')
    return;

  // Reverse the bytes
  this._initArray(this.toArray(), base, endian);
};

BN.prototype._initArray = function _initArray(number, base, endian) {
  // Perhaps a Uint8Array
  assert(typeof number.length === 'number');
  if (number.length <= 0) {
    this.words = [ 0 ];
    this.length = 1;
    return this;
  }

  this.length = Math.ceil(number.length / 3);
  this.words = new Array(this.length);
  for (var i = 0; i < this.length; i++)
    this.words[i] = 0;

  var off = 0;
  if (endian === 'be') {
    for (var i = number.length - 1, j = 0; i >= 0; i -= 3) {
      var w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);
      this.words[j] |= (w << off) & 0x3ffffff;
      this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
      off += 24;
      if (off >= 26) {
        off -= 26;
        j++;
      }
    }
  } else if (endian === 'le') {
    for (var i = 0, j = 0; i < number.length; i += 3) {
      var w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);
      this.words[j] |= (w << off) & 0x3ffffff;
      this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
      off += 24;
      if (off >= 26) {
        off -= 26;
        j++;
      }
    }
  }
  return this.strip();
};

function parseHex(str, start, end) {
  var r = 0;
  var len = Math.min(str.length, end);
  for (var i = start; i < len; i++) {
    var c = str.charCodeAt(i) - 48;

    r <<= 4;

    // 'a' - 'f'
    if (c >= 49 && c <= 54)
      r |= c - 49 + 0xa;

    // 'A' - 'F'
    else if (c >= 17 && c <= 22)
      r |= c - 17 + 0xa;

    // '0' - '9'
    else
      r |= c & 0xf;
  }
  return r;
}

BN.prototype._parseHex = function _parseHex(number, start) {
  // Create possibly bigger array to ensure that it fits the number
  this.length = Math.ceil((number.length - start) / 6);
  this.words = new Array(this.length);
  for (var i = 0; i < this.length; i++)
    this.words[i] = 0;

  // Scan 24-bit chunks and add them to the number
  var off = 0;
  for (var i = number.length - 6, j = 0; i >= start; i -= 6) {
    var w = parseHex(number, i, i + 6);
    this.words[j] |= (w << off) & 0x3ffffff;
    this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
    off += 24;
    if (off >= 26) {
      off -= 26;
      j++;
    }
  }
  if (i + 6 !== start) {
    var w = parseHex(number, start, i + 6);
    this.words[j] |= (w << off) & 0x3ffffff;
    this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
  }
  this.strip();
};

function parseBase(str, start, end, mul) {
  var r = 0;
  var len = Math.min(str.length, end);
  for (var i = start; i < len; i++) {
    var c = str.charCodeAt(i) - 48;

    r *= mul;

    // 'a'
    if (c >= 49)
      r += c - 49 + 0xa;

    // 'A'
    else if (c >= 17)
      r += c - 17 + 0xa;

    // '0' - '9'
    else
      r += c;
  }
  return r;
}

BN.prototype._parseBase = function _parseBase(number, base, start) {
  // Initialize as zero
  this.words = [ 0 ];
  this.length = 1;

  // Find length of limb in base
  for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base)
    limbLen++;
  limbLen--;
  limbPow = (limbPow / base) | 0;

  var total = number.length - start;
  var mod = total % limbLen;
  var end = Math.min(total, total - mod) + start;

  var word = 0;
  for (var i = start; i < end; i += limbLen) {
    word = parseBase(number, i, i + limbLen, base);

    this.imuln(limbPow);
    if (this.words[0] + word < 0x4000000)
      this.words[0] += word;
    else
      this._iaddn(word);
  }

  if (mod !== 0) {
    var pow = 1;
    var word = parseBase(number, i, number.length, base);

    for (var i = 0; i < mod; i++)
      pow *= base;
    this.imuln(pow);
    if (this.words[0] + word < 0x4000000)
      this.words[0] += word;
    else
      this._iaddn(word);
  }
};

BN.prototype.copy = function copy(dest) {
  dest.words = new Array(this.length);
  for (var i = 0; i < this.length; i++)
    dest.words[i] = this.words[i];
  dest.length = this.length;
  dest.sign = this.sign;
  dest.red = this.red;
};

BN.prototype.clone = function clone() {
  var r = new BN(null);
  this.copy(r);
  return r;
};

// Remove leading `0` from `this`
BN.prototype.strip = function strip() {
  while (this.length > 1 && this.words[this.length - 1] === 0)
    this.length--;
  return this._normSign();
};

BN.prototype._normSign = function _normSign() {
  // -0 = 0
  if (this.length === 1 && this.words[0] === 0)
    this.sign = false;
  return this;
};

BN.prototype.inspect = function inspect() {
  return (this.red ? '<BN-R: ' : '<BN: ') + this.toString(16) + '>';
};

/*

var zeros = [];
var groupSizes = [];
var groupBases = [];

var s = '';
var i = -1;
while (++i < BN.wordSize) {
  zeros[i] = s;
  s += '0';
}
groupSizes[0] = 0;
groupSizes[1] = 0;
groupBases[0] = 0;
groupBases[1] = 0;
var base = 2 - 1;
while (++base < 36 + 1) {
  var groupSize = 0;
  var groupBase = 1;
  while (groupBase < (1 << BN.wordSize) / base) {
    groupBase *= base;
    groupSize += 1;
  }
  groupSizes[base] = groupSize;
  groupBases[base] = groupBase;
}

*/

var zeros = [
  '',
  '0',
  '00',
  '000',
  '0000',
  '00000',
  '000000',
  '0000000',
  '00000000',
  '000000000',
  '0000000000',
  '00000000000',
  '000000000000',
  '0000000000000',
  '00000000000000',
  '000000000000000',
  '0000000000000000',
  '00000000000000000',
  '000000000000000000',
  '0000000000000000000',
  '00000000000000000000',
  '000000000000000000000',
  '0000000000000000000000',
  '00000000000000000000000',
  '000000000000000000000000',
  '0000000000000000000000000'
];

var groupSizes = [
  0, 0,
  25, 16, 12, 11, 10, 9, 8,
  8, 7, 7, 7, 7, 6, 6,
  6, 6, 6, 6, 6, 5, 5,
  5, 5, 5, 5, 5, 5, 5,
  5, 5, 5, 5, 5, 5, 5
];

var groupBases = [
  0, 0,
  33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,
  43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,
  16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,
  6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,
  24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176
];

BN.prototype.toString = function toString(base, padding) {
  base = base || 10;
  if (base === 16 || base === 'hex') {
    var out = '';
    var off = 0;
    var padding = padding | 0 || 1;
    var carry = 0;
    for (var i = 0; i < this.length; i++) {
      var w = this.words[i];
      var word = (((w << off) | carry) & 0xffffff).toString(16);
      carry = (w >>> (24 - off)) & 0xffffff;
      if (carry !== 0 || i !== this.length - 1)
        out = zeros[6 - word.length] + word + out;
      else
        out = word + out;
      off += 2;
      if (off >= 26) {
        off -= 26;
        i--;
      }
    }
    if (carry !== 0)
      out = carry.toString(16) + out;
    while (out.length % padding !== 0)
      out = '0' + out;
    if (this.sign)
      out = '-' + out;
    return out;
  } else if (base === (base | 0) && base >= 2 && base <= 36) {
    // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));
    var groupSize = groupSizes[base];
    // var groupBase = Math.pow(base, groupSize);
    var groupBase = groupBases[base];
    var out = '';
    var c = this.clone();
    c.sign = false;
    while (c.cmpn(0) !== 0) {
      var r = c.modn(groupBase).toString(base);
      c = c.idivn(groupBase);

      if (c.cmpn(0) !== 0)
        out = zeros[groupSize - r.length] + r + out;
      else
        out = r + out;
    }
    if (this.cmpn(0) === 0)
      out = '0' + out;
    if (this.sign)
      out = '-' + out;
    return out;
  } else {
    assert(false, 'Base should be between 2 and 36');
  }
};

BN.prototype.toJSON = function toJSON() {
  return this.toString(16);
};

BN.prototype.toArray = function toArray(endian) {
  this.strip();
  var res = new Array(this.byteLength());
  res[0] = 0;

  var q = this.clone();
  if (endian !== 'le') {
    // Assume big-endian
    for (var i = 0; q.cmpn(0) !== 0; i++) {
      var b = q.andln(0xff);
      q.ishrn(8);

      res[res.length - i - 1] = b;
    }
  } else {
    // Assume little-endian
    for (var i = 0; q.cmpn(0) !== 0; i++) {
      var b = q.andln(0xff);
      q.ishrn(8);

      res[i] = b;
    }
  }

  return res;
};

if (Math.clz32) {
  BN.prototype._countBits = function _countBits(w) {
    return 32 - Math.clz32(w);
  };
} else {
  BN.prototype._countBits = function _countBits(w) {
    var t = w;
    var r = 0;
    if (t >= 0x1000) {
      r += 13;
      t >>>= 13;
    }
    if (t >= 0x40) {
      r += 7;
      t >>>= 7;
    }
    if (t >= 0x8) {
      r += 4;
      t >>>= 4;
    }
    if (t >= 0x02) {
      r += 2;
      t >>>= 2;
    }
    return r + t;
  };
}

BN.prototype._zeroBits = function _zeroBits(w) {
  // Short-cut
  if (w === 0)
    return 26;

  var t = w;
  var r = 0;
  if ((t & 0x1fff) === 0) {
    r += 13;
    t >>>= 13;
  }
  if ((t & 0x7f) === 0) {
    r += 7;
    t >>>= 7;
  }
  if ((t & 0xf) === 0) {
    r += 4;
    t >>>= 4;
  }
  if ((t & 0x3) === 0) {
    r += 2;
    t >>>= 2;
  }
  if ((t & 0x1) === 0)
    r++;
  return r;
};

// Return number of used bits in a BN
BN.prototype.bitLength = function bitLength() {
  var hi = 0;
  var w = this.words[this.length - 1];
  var hi = this._countBits(w);
  return (this.length - 1) * 26 + hi;
};

// Number of trailing zero bits
BN.prototype.zeroBits = function zeroBits() {
  if (this.cmpn(0) === 0)
    return 0;

  var r = 0;
  for (var i = 0; i < this.length; i++) {
    var b = this._zeroBits(this.words[i]);
    r += b;
    if (b !== 26)
      break;
  }
  return r;
};

BN.prototype.byteLength = function byteLength() {
  return Math.ceil(this.bitLength() / 8);
};

// Return negative clone of `this`
BN.prototype.neg = function neg() {
  if (this.cmpn(0) === 0)
    return this.clone();

  var r = this.clone();
  r.sign = !this.sign;
  return r;
};


// Or `num` with `this` in-place
BN.prototype.ior = function ior(num) {
  this.sign = this.sign || num.sign;

  while (this.length < num.length)
    this.words[this.length++] = 0;

  for (var i = 0; i < num.length; i++)
    this.words[i] = this.words[i] | num.words[i];

  return this.strip();
};


// Or `num` with `this`
BN.prototype.or = function or(num) {
  if (this.length > num.length)
    return this.clone().ior(num);
  else
    return num.clone().ior(this);
};


// And `num` with `this` in-place
BN.prototype.iand = function iand(num) {
  this.sign = this.sign && num.sign;

  // b = min-length(num, this)
  var b;
  if (this.length > num.length)
    b = num;
  else
    b = this;

  for (var i = 0; i < b.length; i++)
    this.words[i] = this.words[i] & num.words[i];

  this.length = b.length;

  return this.strip();
};


// And `num` with `this`
BN.prototype.and = function and(num) {
  if (this.length > num.length)
    return this.clone().iand(num);
  else
    return num.clone().iand(this);
};


// Xor `num` with `this` in-place
BN.prototype.ixor = function ixor(num) {
  this.sign = this.sign || num.sign;

  // a.length > b.length
  var a;
  var b;
  if (this.length > num.length) {
    a = this;
    b = num;
  } else {
    a = num;
    b = this;
  }

  for (var i = 0; i < b.length; i++)
    this.words[i] = a.words[i] ^ b.words[i];

  if (this !== a)
    for (; i < a.length; i++)
      this.words[i] = a.words[i];

  this.length = a.length;

  return this.strip();
};


// Xor `num` with `this`
BN.prototype.xor = function xor(num) {
  if (this.length > num.length)
    return this.clone().ixor(num);
  else
    return num.clone().ixor(this);
};


// Set `bit` of `this`
BN.prototype.setn = function setn(bit, val) {
  assert(typeof bit === 'number' && bit >= 0);

  var off = (bit / 26) | 0;
  var wbit = bit % 26;

  while (this.length <= off)
    this.words[this.length++] = 0;

  if (val)
    this.words[off] = this.words[off] | (1 << wbit);
  else
    this.words[off] = this.words[off] & ~(1 << wbit);

  return this.strip();
};


// Add `num` to `this` in-place
BN.prototype.iadd = function iadd(num) {
  // negative + positive
  if (this.sign && !num.sign) {
    this.sign = false;
    var r = this.isub(num);
    this.sign = !this.sign;
    return this._normSign();

  // positive + negative
  } else if (!this.sign && num.sign) {
    num.sign = false;
    var r = this.isub(num);
    num.sign = true;
    return r._normSign();
  }

  // a.length > b.length
  var a;
  var b;
  if (this.length > num.length) {
    a = this;
    b = num;
  } else {
    a = num;
    b = this;
  }

  var carry = 0;
  for (var i = 0; i < b.length; i++) {
    var r = a.words[i] + b.words[i] + carry;
    this.words[i] = r & 0x3ffffff;
    carry = r >>> 26;
  }
  for (; carry !== 0 && i < a.length; i++) {
    var r = a.words[i] + carry;
    this.words[i] = r & 0x3ffffff;
    carry = r >>> 26;
  }

  this.length = a.length;
  if (carry !== 0) {
    this.words[this.length] = carry;
    this.length++;
  // Copy the rest of the words
  } else if (a !== this) {
    for (; i < a.length; i++)
      this.words[i] = a.words[i];
  }

  return this;
};

// Add `num` to `this`
BN.prototype.add = function add(num) {
  if (num.sign && !this.sign) {
    num.sign = false;
    var res = this.sub(num);
    num.sign = true;
    return res;
  } else if (!num.sign && this.sign) {
    this.sign = false;
    var res = num.sub(this);
    this.sign = true;
    return res;
  }

  if (this.length > num.length)
    return this.clone().iadd(num);
  else
    return num.clone().iadd(this);
};

// Subtract `num` from `this` in-place
BN.prototype.isub = function isub(num) {
  // this - (-num) = this + num
  if (num.sign) {
    num.sign = false;
    var r = this.iadd(num);
    num.sign = true;
    return r._normSign();

  // -this - num = -(this + num)
  } else if (this.sign) {
    this.sign = false;
    this.iadd(num);
    this.sign = true;
    return this._normSign();
  }

  // At this point both numbers are positive
  var cmp = this.cmp(num);

  // Optimization - zeroify
  if (cmp === 0) {
    this.sign = false;
    this.length = 1;
    this.words[0] = 0;
    return this;
  }

  // a > b
  var a;
  var b;
  if (cmp > 0) {
    a = this;
    b = num;
  } else {
    a = num;
    b = this;
  }

  var carry = 0;
  for (var i = 0; i < b.length; i++) {
    var r = a.words[i] - b.words[i] + carry;
    carry = r >> 26;
    this.words[i] = r & 0x3ffffff;
  }
  for (; carry !== 0 && i < a.length; i++) {
    var r = a.words[i] + carry;
    carry = r >> 26;
    this.words[i] = r & 0x3ffffff;
  }

  // Copy rest of the words
  if (carry === 0 && i < a.length && a !== this)
    for (; i < a.length; i++)
      this.words[i] = a.words[i];
  this.length = Math.max(this.length, i);

  if (a !== this)
    this.sign = true;

  return this.strip();
};

// Subtract `num` from `this`
BN.prototype.sub = function sub(num) {
  return this.clone().isub(num);
};

/*
// NOTE: This could be potentionally used to generate loop-less multiplications
function _genCombMulTo(alen, blen) {
  var len = alen + blen - 1;
  var src = [
    'var a = this.words, b = num.words, o = out.words, c = 0, w, ' +
        'mask = 0x3ffffff, shift = 0x4000000;',
    'out.length = ' + len + ';'
  ];
  for (var k = 0; k < len; k++) {
    var minJ = Math.max(0, k - alen + 1);
    var maxJ = Math.min(k, blen - 1);

    for (var j = minJ; j <= maxJ; j++) {
      var i = k - j;
      var mul = 'a[' + i + '] * b[' + j + ']';

      if (j === minJ) {
        src.push('w = ' + mul + ' + c;');
        src.push('c = (w / shift) | 0;');
      } else {
        src.push('w += ' + mul + ';');
        src.push('c += (w / shift) | 0;');
      }
      src.push('w &= mask;');
    }
    src.push('o[' + k + '] = w;');
  }
  src.push('if (c !== 0) {',
           '  o[' + k + '] = c;',
           '  out.length++;',
           '}',
           'return out;');

  return src.join('\n');
}
*/

BN.prototype._smallMulTo = function _smallMulTo(num, out) {
  out.sign = num.sign !== this.sign;
  out.length = this.length + num.length;

  var carry = 0;
  for (var k = 0; k < out.length - 1; k++) {
    // Sum all words with the same `i + j = k` and accumulate `ncarry`,
    // note that ncarry could be >= 0x3ffffff
    var ncarry = carry >>> 26;
    var rword = carry & 0x3ffffff;
    var maxJ = Math.min(k, num.length - 1);
    for (var j = Math.max(0, k - this.length + 1); j <= maxJ; j++) {
      var i = k - j;
      var a = this.words[i] | 0;
      var b = num.words[j] | 0;
      var r = a * b;

      var lo = r & 0x3ffffff;
      ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;
      lo = (lo + rword) | 0;
      rword = lo & 0x3ffffff;
      ncarry = (ncarry + (lo >>> 26)) | 0;
    }
    out.words[k] = rword;
    carry = ncarry;
  }
  if (carry !== 0) {
    out.words[k] = carry;
  } else {
    out.length--;
  }

  return out.strip();
};

BN.prototype._bigMulTo = function _bigMulTo(num, out) {
  out.sign = num.sign !== this.sign;
  out.length = this.length + num.length;

  var carry = 0;
  var hncarry = 0;
  for (var k = 0; k < out.length - 1; k++) {
    // Sum all words with the same `i + j = k` and accumulate `ncarry`,
    // note that ncarry could be >= 0x3ffffff
    var ncarry = hncarry;
    hncarry = 0;
    var rword = carry & 0x3ffffff;
    var maxJ = Math.min(k, num.length - 1);
    for (var j = Math.max(0, k - this.length + 1); j <= maxJ; j++) {
      var i = k - j;
      var a = this.words[i] | 0;
      var b = num.words[j] | 0;
      var r = a * b;

      var lo = r & 0x3ffffff;
      ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;
      lo = (lo + rword) | 0;
      rword = lo & 0x3ffffff;
      ncarry = (ncarry + (lo >>> 26)) | 0;

      hncarry += ncarry >>> 26;
      ncarry &= 0x3ffffff;
    }
    out.words[k] = rword;
    carry = ncarry;
    ncarry = hncarry;
  }
  if (carry !== 0) {
    out.words[k] = carry;
  } else {
    out.length--;
  }

  return out.strip();
};

BN.prototype.mulTo = function mulTo(num, out) {
  var res;
  if (this.length + num.length < 63)
    res = this._smallMulTo(num, out);
  else
    res = this._bigMulTo(num, out);
  return res;
};

// Multiply `this` by `num`
BN.prototype.mul = function mul(num) {
  var out = new BN(null);
  out.words = new Array(this.length + num.length);
  return this.mulTo(num, out);
};

// In-place Multiplication
BN.prototype.imul = function imul(num) {
  if (this.cmpn(0) === 0 || num.cmpn(0) === 0) {
    this.words[0] = 0;
    this.length = 1;
    return this;
  }

  var tlen = this.length;
  var nlen = num.length;

  this.sign = num.sign !== this.sign;
  this.length = this.length + num.length;
  this.words[this.length - 1] = 0;

  for (var k = this.length - 2; k >= 0; k--) {
    // Sum all words with the same `i + j = k` and accumulate `carry`,
    // note that carry could be >= 0x3ffffff
    var carry = 0;
    var rword = 0;
    var maxJ = Math.min(k, nlen - 1);
    for (var j = Math.max(0, k - tlen + 1); j <= maxJ; j++) {
      var i = k - j;
      var a = this.words[i];
      var b = num.words[j];
      var r = a * b;

      var lo = r & 0x3ffffff;
      carry += (r / 0x4000000) | 0;
      lo += rword;
      rword = lo & 0x3ffffff;
      carry += lo >>> 26;
    }
    this.words[k] = rword;
    this.words[k + 1] += carry;
    carry = 0;
  }

  // Propagate overflows
  var carry = 0;
  for (var i = 1; i < this.length; i++) {
    var w = this.words[i] + carry;
    this.words[i] = w & 0x3ffffff;
    carry = w >>> 26;
  }

  return this.strip();
};

BN.prototype.imuln = function imuln(num) {
  assert(typeof num === 'number');

  // Carry
  var carry = 0;
  for (var i = 0; i < this.length; i++) {
    var w = this.words[i] * num;
    var lo = (w & 0x3ffffff) + (carry & 0x3ffffff);
    carry >>= 26;
    carry += (w / 0x4000000) | 0;
    // NOTE: lo is 27bit maximum
    carry += lo >>> 26;
    this.words[i] = lo & 0x3ffffff;
  }

  if (carry !== 0) {
    this.words[i] = carry;
    this.length++;
  }

  return this;
};

BN.prototype.muln = function muln(num) {
  return this.clone().imuln(num);
};

// `this` * `this`
BN.prototype.sqr = function sqr() {
  return this.mul(this);
};

// `this` * `this` in-place
BN.prototype.isqr = function isqr() {
  return this.mul(this);
};

// Shift-left in-place
BN.prototype.ishln = function ishln(bits) {
  assert(typeof bits === 'number' && bits >= 0);
  var r = bits % 26;
  var s = (bits - r) / 26;
  var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r);

  if (r !== 0) {
    var carry = 0;
    for (var i = 0; i < this.length; i++) {
      var newCarry = this.words[i] & carryMask;
      var c = (this.words[i] - newCarry) << r;
      this.words[i] = c | carry;
      carry = newCarry >>> (26 - r);
    }
    if (carry) {
      this.words[i] = carry;
      this.length++;
    }
  }

  if (s !== 0) {
    for (var i = this.length - 1; i >= 0; i--)
      this.words[i + s] = this.words[i];
    for (var i = 0; i < s; i++)
      this.words[i] = 0;
    this.length += s;
  }

  return this.strip();
};

// Shift-right in-place
// NOTE: `hint` is a lowest bit before trailing zeroes
// NOTE: if `extended` is present - it will be filled with destroyed bits
BN.prototype.ishrn = function ishrn(bits, hint, extended) {
  assert(typeof bits === 'number' && bits >= 0);
  var h;
  if (hint)
    h = (hint - (hint % 26)) / 26;
  else
    h = 0;

  var r = bits % 26;
  var s = Math.min((bits - r) / 26, this.length);
  var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);
  var maskedWords = extended;

  h -= s;
  h = Math.max(0, h);

  // Extended mode, copy masked part
  if (maskedWords) {
    for (var i = 0; i < s; i++)
      maskedWords.words[i] = this.words[i];
    maskedWords.length = s;
  }

  if (s === 0) {
    // No-op, we should not move anything at all
  } else if (this.length > s) {
    this.length -= s;
    for (var i = 0; i < this.length; i++)
      this.words[i] = this.words[i + s];
  } else {
    this.words[0] = 0;
    this.length = 1;
  }

  var carry = 0;
  for (var i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) {
    var word = this.words[i];
    this.words[i] = (carry << (26 - r)) | (word >>> r);
    carry = word & mask;
  }

  // Push carried bits as a mask
  if (maskedWords && carry !== 0)
    maskedWords.words[maskedWords.length++] = carry;

  if (this.length === 0) {
    this.words[0] = 0;
    this.length = 1;
  }

  this.strip();

  return this;
};

// Shift-left
BN.prototype.shln = function shln(bits) {
  return this.clone().ishln(bits);
};

// Shift-right
BN.prototype.shrn = function shrn(bits) {
  return this.clone().ishrn(bits);
};

// Test if n bit is set
BN.prototype.testn = function testn(bit) {
  assert(typeof bit === 'number' && bit >= 0);
  var r = bit % 26;
  var s = (bit - r) / 26;
  var q = 1 << r;

  // Fast case: bit is much higher than all existing words
  if (this.length <= s) {
    return false;
  }

  // Check bit and return
  var w = this.words[s];

  return !!(w & q);
};

// Return only lowers bits of number (in-place)
BN.prototype.imaskn = function imaskn(bits) {
  assert(typeof bits === 'number' && bits >= 0);
  var r = bits % 26;
  var s = (bits - r) / 26;

  assert(!this.sign, 'imaskn works only with positive numbers');

  if (r !== 0)
    s++;
  this.length = Math.min(s, this.length);

  if (r !== 0) {
    var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);
    this.words[this.length - 1] &= mask;
  }

  return this.strip();
};

// Return only lowers bits of number
BN.prototype.maskn = function maskn(bits) {
  return this.clone().imaskn(bits);
};

// Add plain number `num` to `this`
BN.prototype.iaddn = function iaddn(num) {
  assert(typeof num === 'number');
  if (num < 0)
    return this.isubn(-num);

  // Possible sign change
  if (this.sign) {
    if (this.length === 1 && this.words[0] < num) {
      this.words[0] = num - this.words[0];
      this.sign = false;
      return this;
    }

    this.sign = false;
    this.isubn(num);
    this.sign = true;
    return this;
  }

  // Add without checks
  return this._iaddn(num);
};

BN.prototype._iaddn = function _iaddn(num) {
  this.words[0] += num;

  // Carry
  for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) {
    this.words[i] -= 0x4000000;
    if (i === this.length - 1)
      this.words[i + 1] = 1;
    else
      this.words[i + 1]++;
  }
  this.length = Math.max(this.length, i + 1);

  return this;
};

// Subtract plain number `num` from `this`
BN.prototype.isubn = function isubn(num) {
  assert(typeof num === 'number');
  if (num < 0)
    return this.iaddn(-num);

  if (this.sign) {
    this.sign = false;
    this.iaddn(num);
    this.sign = true;
    return this;
  }

  this.words[0] -= num;

  // Carry
  for (var i = 0; i < this.length && this.words[i] < 0; i++) {
    this.words[i] += 0x4000000;
    this.words[i + 1] -= 1;
  }

  return this.strip();
};

BN.prototype.addn = function addn(num) {
  return this.clone().iaddn(num);
};

BN.prototype.subn = function subn(num) {
  return this.clone().isubn(num);
};

BN.prototype.iabs = function iabs() {
  this.sign = false;

  return this;
};

BN.prototype.abs = function abs() {
  return this.clone().iabs();
};

BN.prototype._ishlnsubmul = function _ishlnsubmul(num, mul, shift) {
  // Bigger storage is needed
  var len = num.length + shift;
  var i;
  if (this.words.length < len) {
    var t = new Array(len);
    for (var i = 0; i < this.length; i++)
      t[i] = this.words[i];
    this.words = t;
  } else {
    i = this.length;
  }

  // Zeroify rest
  this.length = Math.max(this.length, len);
  for (; i < this.length; i++)
    this.words[i] = 0;

  var carry = 0;
  for (var i = 0; i < num.length; i++) {
    var w = this.words[i + shift] + carry;
    var right = num.words[i] * mul;
    w -= right & 0x3ffffff;
    carry = (w >> 26) - ((right / 0x4000000) | 0);
    this.words[i + shift] = w & 0x3ffffff;
  }
  for (; i < this.length - shift; i++) {
    var w = this.words[i + shift] + carry;
    carry = w >> 26;
    this.words[i + shift] = w & 0x3ffffff;
  }

  if (carry === 0)
    return this.strip();

  // Subtraction overflow
  assert(carry === -1);
  carry = 0;
  for (var i = 0; i < this.length; i++) {
    var w = -this.words[i] + carry;
    carry = w >> 26;
    this.words[i] = w & 0x3ffffff;
  }
  this.sign = true;

  return this.strip();
};

BN.prototype._wordDiv = function _wordDiv(num, mode) {
  var shift = this.length - num.length;

  var a = this.clone();
  var b = num;

  // Normalize
  var bhi = b.words[b.length - 1];
  var bhiBits = this._countBits(bhi);
  shift = 26 - bhiBits;
  if (shift !== 0) {
    b = b.shln(shift);
    a.ishln(shift);
    bhi = b.words[b.length - 1];
  }

  // Initialize quotient
  var m = a.length - b.length;
  var q;

  if (mode !== 'mod') {
    q = new BN(null);
    q.length = m + 1;
    q.words = new Array(q.length);
    for (var i = 0; i < q.length; i++)
      q.words[i] = 0;
  }

  var diff = a.clone()._ishlnsubmul(b, 1, m);
  if (!diff.sign) {
    a = diff;
    if (q)
      q.words[m] = 1;
  }

  for (var j = m - 1; j >= 0; j--) {
    var qj = a.words[b.length + j] * 0x4000000 + a.words[b.length + j - 1];

    // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max
    // (0x7ffffff)
    qj = Math.min((qj / bhi) | 0, 0x3ffffff);

    a._ishlnsubmul(b, qj, j);
    while (a.sign) {
      qj--;
      a.sign = false;
      a._ishlnsubmul(b, 1, j);
      if (a.cmpn(0) !== 0)
        a.sign = !a.sign;
    }
    if (q)
      q.words[j] = qj;
  }
  if (q)
    q.strip();
  a.strip();

  // Denormalize
  if (mode !== 'div' && shift !== 0)
    a.ishrn(shift);
  return { div: q ? q : null, mod: a };
};

BN.prototype.divmod = function divmod(num, mode) {
  assert(num.cmpn(0) !== 0);

  if (this.sign && !num.sign) {
    var res = this.neg().divmod(num, mode);
    var div;
    var mod;
    if (mode !== 'mod')
      div = res.div.neg();
    if (mode !== 'div')
      mod = res.mod.cmpn(0) === 0 ? res.mod : num.sub(res.mod);
    return {
      div: div,
      mod: mod
    };
  } else if (!this.sign && num.sign) {
    var res = this.divmod(num.neg(), mode);
    var div;
    if (mode !== 'mod')
      div = res.div.neg();
    return { div: div, mod: res.mod };
  } else if (this.sign && num.sign) {
    return this.neg().divmod(num.neg(), mode);
  }

  // Both numbers are positive at this point

  // Strip both numbers to approximate shift value
  if (num.length > this.length || this.cmp(num) < 0)
    return { div: new BN(0), mod: this };

  // Very short reduction
  if (num.length === 1) {
    if (mode === 'div')
      return { div: this.divn(num.words[0]), mod: null };
    else if (mode === 'mod')
      return { div: null, mod: new BN(this.modn(num.words[0])) };
    return {
      div: this.divn(num.words[0]),
      mod: new BN(this.modn(num.words[0]))
    };
  }

  return this._wordDiv(num, mode);
};

// Find `this` / `num`
BN.prototype.div = function div(num) {
  return this.divmod(num, 'div').div;
};

// Find `this` % `num`
BN.prototype.mod = function mod(num) {
  return this.divmod(num, 'mod').mod;
};

// Find Round(`this` / `num`)
BN.prototype.divRound = function divRound(num) {
  var dm = this.divmod(num);

  // Fast case - exact division
  if (dm.mod.cmpn(0) === 0)
    return dm.div;

  var mod = dm.div.sign ? dm.mod.isub(num) : dm.mod;

  var half = num.shrn(1);
  var r2 = num.andln(1);
  var cmp = mod.cmp(half);

  // Round down
  if (cmp < 0 || r2 === 1 && cmp === 0)
    return dm.div;

  // Round up
  return dm.div.sign ? dm.div.isubn(1) : dm.div.iaddn(1);
};

BN.prototype.modn = function modn(num) {
  assert(num <= 0x3ffffff);
  var p = (1 << 26) % num;

  var acc = 0;
  for (var i = this.length - 1; i >= 0; i--)
    acc = (p * acc + this.words[i]) % num;

  return acc;
};

// In-place division by number
BN.prototype.idivn = function idivn(num) {
  assert(num <= 0x3ffffff);

  var carry = 0;
  for (var i = this.length - 1; i >= 0; i--) {
    var w = this.words[i] + carry * 0x4000000;
    this.words[i] = (w / num) | 0;
    carry = w % num;
  }

  return this.strip();
};

BN.prototype.divn = function divn(num) {
  return this.clone().idivn(num);
};

BN.prototype.egcd = function egcd(p) {
  assert(!p.sign);
  assert(p.cmpn(0) !== 0);

  var x = this;
  var y = p.clone();

  if (x.sign)
    x = x.mod(p);
  else
    x = x.clone();

  // A * x + B * y = x
  var A = new BN(1);
  var B = new BN(0);

  // C * x + D * y = y
  var C = new BN(0);
  var D = new BN(1);

  var g = 0;

  while (x.isEven() && y.isEven()) {
    x.ishrn(1);
    y.ishrn(1);
    ++g;
  }

  var yp = y.clone();
  var xp = x.clone();

  while (x.cmpn(0) !== 0) {
    while (x.isEven()) {
      x.ishrn(1);
      if (A.isEven() && B.isEven()) {
        A.ishrn(1);
        B.ishrn(1);
      } else {
        A.iadd(yp).ishrn(1);
        B.isub(xp).ishrn(1);
      }
    }

    while (y.isEven()) {
      y.ishrn(1);
      if (C.isEven() && D.isEven()) {
        C.ishrn(1);
        D.ishrn(1);
      } else {
        C.iadd(yp).ishrn(1);
        D.isub(xp).ishrn(1);
      }
    }

    if (x.cmp(y) >= 0) {
      x.isub(y);
      A.isub(C);
      B.isub(D);
    } else {
      y.isub(x);
      C.isub(A);
      D.isub(B);
    }
  }

  return {
    a: C,
    b: D,
    gcd: y.ishln(g)
  };
};

// This is reduced incarnation of the binary EEA
// above, designated to invert members of the
// _prime_ fields F(p) at a maximal speed
BN.prototype._invmp = function _invmp(p) {
  assert(!p.sign);
  assert(p.cmpn(0) !== 0);

  var a = this;
  var b = p.clone();

  if (a.sign)
    a = a.mod(p);
  else
    a = a.clone();

  var x1 = new BN(1);
  var x2 = new BN(0);

  var delta = b.clone();

  while (a.cmpn(1) > 0 && b.cmpn(1) > 0) {
    while (a.isEven()) {
      a.ishrn(1);
      if (x1.isEven())
        x1.ishrn(1);
      else
        x1.iadd(delta).ishrn(1);
    }
    while (b.isEven()) {
      b.ishrn(1);
      if (x2.isEven())
        x2.ishrn(1);
      else
        x2.iadd(delta).ishrn(1);
    }
    if (a.cmp(b) >= 0) {
      a.isub(b);
      x1.isub(x2);
    } else {
      b.isub(a);
      x2.isub(x1);
    }
  }
  if (a.cmpn(1) === 0)
    return x1;
  else
    return x2;
};

BN.prototype.gcd = function gcd(num) {
  if (this.cmpn(0) === 0)
    return num.clone();
  if (num.cmpn(0) === 0)
    return this.clone();

  var a = this.clone();
  var b = num.clone();
  a.sign = false;
  b.sign = false;

  // Remove common factor of two
  for (var shift = 0; a.isEven() && b.isEven(); shift++) {
    a.ishrn(1);
    b.ishrn(1);
  }

  do {
    while (a.isEven())
      a.ishrn(1);
    while (b.isEven())
      b.ishrn(1);

    var r = a.cmp(b);
    if (r < 0) {
      // Swap `a` and `b` to make `a` always bigger than `b`
      var t = a;
      a = b;
      b = t;
    } else if (r === 0 || b.cmpn(1) === 0) {
      break;
    }

    a.isub(b);
  } while (true);

  return b.ishln(shift);
};

// Invert number in the field F(num)
BN.prototype.invm = function invm(num) {
  return this.egcd(num).a.mod(num);
};

BN.prototype.isEven = function isEven() {
  return (this.words[0] & 1) === 0;
};

BN.prototype.isOdd = function isOdd() {
  return (this.words[0] & 1) === 1;
};

// And first word and num
BN.prototype.andln = function andln(num) {
  return this.words[0] & num;
};

// Increment at the bit position in-line
BN.prototype.bincn = function bincn(bit) {
  assert(typeof bit === 'number');
  var r = bit % 26;
  var s = (bit - r) / 26;
  var q = 1 << r;

  // Fast case: bit is much higher than all existing words
  if (this.length <= s) {
    for (var i = this.length; i < s + 1; i++)
      this.words[i] = 0;
    this.words[s] |= q;
    this.length = s + 1;
    return this;
  }

  // Add bit and propagate, if needed
  var carry = q;
  for (var i = s; carry !== 0 && i < this.length; i++) {
    var w = this.words[i];
    w += carry;
    carry = w >>> 26;
    w &= 0x3ffffff;
    this.words[i] = w;
  }
  if (carry !== 0) {
    this.words[i] = carry;
    this.length++;
  }
  return this;
};

BN.prototype.cmpn = function cmpn(num) {
  var sign = num < 0;
  if (sign)
    num = -num;

  if (this.sign && !sign)
    return -1;
  else if (!this.sign && sign)
    return 1;

  num &= 0x3ffffff;
  this.strip();

  var res;
  if (this.length > 1) {
    res = 1;
  } else {
    var w = this.words[0];
    res = w === num ? 0 : w < num ? -1 : 1;
  }
  if (this.sign)
    res = -res;
  return res;
};

// Compare two numbers and return:
// 1 - if `this` > `num`
// 0 - if `this` == `num`
// -1 - if `this` < `num`
BN.prototype.cmp = function cmp(num) {
  if (this.sign && !num.sign)
    return -1;
  else if (!this.sign && num.sign)
    return 1;

  var res = this.ucmp(num);
  if (this.sign)
    return -res;
  else
    return res;
};

// Unsigned comparison
BN.prototype.ucmp = function ucmp(num) {
  // At this point both numbers have the same sign
  if (this.length > num.length)
    return 1;
  else if (this.length < num.length)
    return -1;

  var res = 0;
  for (var i = this.length - 1; i >= 0; i--) {
    var a = this.words[i];
    var b = num.words[i];

    if (a === b)
      continue;
    if (a < b)
      res = -1;
    else if (a > b)
      res = 1;
    break;
  }
  return res;
};

//
// A reduce context, could be using montgomery or something better, depending
// on the `m` itself.
//
BN.red = function red(num) {
  return new Red(num);
};

BN.prototype.toRed = function toRed(ctx) {
  assert(!this.red, 'Already a number in reduction context');
  assert(!this.sign, 'red works only with positives');
  return ctx.convertTo(this)._forceRed(ctx);
};

BN.prototype.fromRed = function fromRed() {
  assert(this.red, 'fromRed works only with numbers in reduction context');
  return this.red.convertFrom(this);
};

BN.prototype._forceRed = function _forceRed(ctx) {
  this.red = ctx;
  return this;
};

BN.prototype.forceRed = function forceRed(ctx) {
  assert(!this.red, 'Already a number in reduction context');
  return this._forceRed(ctx);
};

BN.prototype.redAdd = function redAdd(num) {
  assert(this.red, 'redAdd works only with red numbers');
  return this.red.add(this, num);
};

BN.prototype.redIAdd = function redIAdd(num) {
  assert(this.red, 'redIAdd works only with red numbers');
  return this.red.iadd(this, num);
};

BN.prototype.redSub = function redSub(num) {
  assert(this.red, 'redSub works only with red numbers');
  return this.red.sub(this, num);
};

BN.prototype.redISub = function redISub(num) {
  assert(this.red, 'redISub works only with red numbers');
  return this.red.isub(this, num);
};

BN.prototype.redShl = function redShl(num) {
  assert(this.red, 'redShl works only with red numbers');
  return this.red.shl(this, num);
};

BN.prototype.redMul = function redMul(num) {
  assert(this.red, 'redMul works only with red numbers');
  this.red._verify2(this, num);
  return this.red.mul(this, num);
};

BN.prototype.redIMul = function redIMul(num) {
  assert(this.red, 'redMul works only with red numbers');
  this.red._verify2(this, num);
  return this.red.imul(this, num);
};

BN.prototype.redSqr = function redSqr() {
  assert(this.red, 'redSqr works only with red numbers');
  this.red._verify1(this);
  return this.red.sqr(this);
};

BN.prototype.redISqr = function redISqr() {
  assert(this.red, 'redISqr works only with red numbers');
  this.red._verify1(this);
  return this.red.isqr(this);
};

// Square root over p
BN.prototype.redSqrt = function redSqrt() {
  assert(this.red, 'redSqrt works only with red numbers');
  this.red._verify1(this);
  return this.red.sqrt(this);
};

BN.prototype.redInvm = function redInvm() {
  assert(this.red, 'redInvm works only with red numbers');
  this.red._verify1(this);
  return this.red.invm(this);
};

// Return negative clone of `this` % `red modulo`
BN.prototype.redNeg = function redNeg() {
  assert(this.red, 'redNeg works only with red numbers');
  this.red._verify1(this);
  return this.red.neg(this);
};

BN.prototype.redPow = function redPow(num) {
  assert(this.red && !num.red, 'redPow(normalNum)');
  this.red._verify1(this);
  return this.red.pow(this, num);
};

// Prime numbers with efficient reduction
var primes = {
  k256: null,
  p224: null,
  p192: null,
  p25519: null
};

// Pseudo-Mersenne prime
function MPrime(name, p) {
  // P = 2 ^ N - K
  this.name = name;
  this.p = new BN(p, 16);
  this.n = this.p.bitLength();
  this.k = new BN(1).ishln(this.n).isub(this.p);

  this.tmp = this._tmp();
}

MPrime.prototype._tmp = function _tmp() {
  var tmp = new BN(null);
  tmp.words = new Array(Math.ceil(this.n / 13));
  return tmp;
};

MPrime.prototype.ireduce = function ireduce(num) {
  // Assumes that `num` is less than `P^2`
  // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P)
  var r = num;
  var rlen;

  do {
    this.split(r, this.tmp);
    r = this.imulK(r);
    r = r.iadd(this.tmp);
    rlen = r.bitLength();
  } while (rlen > this.n);

  var cmp = rlen < this.n ? -1 : r.ucmp(this.p);
  if (cmp === 0) {
    r.words[0] = 0;
    r.length = 1;
  } else if (cmp > 0) {
    r.isub(this.p);
  } else {
    r.strip();
  }

  return r;
};

MPrime.prototype.split = function split(input, out) {
  input.ishrn(this.n, 0, out);
};

MPrime.prototype.imulK = function imulK(num) {
  return num.imul(this.k);
};

function K256() {
  MPrime.call(
    this,
    'k256',
    'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f');
}
inherits(K256, MPrime);

K256.prototype.split = function split(input, output) {
  // 256 = 9 * 26 + 22
  var mask = 0x3fffff;

  var outLen = Math.min(input.length, 9);
  for (var i = 0; i < outLen; i++)
    output.words[i] = input.words[i];
  output.length = outLen;

  if (input.length <= 9) {
    input.words[0] = 0;
    input.length = 1;
    return;
  }

  // Shift by 9 limbs
  var prev = input.words[9];
  output.words[output.length++] = prev & mask;

  for (var i = 10; i < input.length; i++) {
    var next = input.words[i];
    input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22);
    prev = next;
  }
  input.words[i - 10] = prev >>> 22;
  input.length -= 9;
};

K256.prototype.imulK = function imulK(num) {
  // K = 0x1000003d1 = [ 0x40, 0x3d1 ]
  num.words[num.length] = 0;
  num.words[num.length + 1] = 0;
  num.length += 2;

  // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390
  var hi;
  var lo = 0;
  for (var i = 0; i < num.length; i++) {
    var w = num.words[i];
    hi = w * 0x40;
    lo += w * 0x3d1;
    hi += (lo / 0x4000000) | 0;
    lo &= 0x3ffffff;

    num.words[i] = lo;

    lo = hi;
  }

  // Fast length reduction
  if (num.words[num.length - 1] === 0) {
    num.length--;
    if (num.words[num.length - 1] === 0)
      num.length--;
  }
  return num;
};

function P224() {
  MPrime.call(
    this,
    'p224',
    'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001');
}
inherits(P224, MPrime);

function P192() {
  MPrime.call(
    this,
    'p192',
    'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff');
}
inherits(P192, MPrime);

function P25519() {
  // 2 ^ 255 - 19
  MPrime.call(
    this,
    '25519',
    '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed');
}
inherits(P25519, MPrime);

P25519.prototype.imulK = function imulK(num) {
  // K = 0x13
  var carry = 0;
  for (var i = 0; i < num.length; i++) {
    var hi = num.words[i] * 0x13 + carry;
    var lo = hi & 0x3ffffff;
    hi >>>= 26;

    num.words[i] = lo;
    carry = hi;
  }
  if (carry !== 0)
    num.words[num.length++] = carry;
  return num;
};

// Exported mostly for testing purposes, use plain name instead
BN._prime = function prime(name) {
  // Cached version of prime
  if (primes[name])
    return primes[name];

  var prime;
  if (name === 'k256')
    prime = new K256();
  else if (name === 'p224')
    prime = new P224();
  else if (name === 'p192')
    prime = new P192();
  else if (name === 'p25519')
    prime = new P25519();
  else
    throw new Error('Unknown prime ' + name);
  primes[name] = prime;

  return prime;
};

//
// Base reduction engine
//
function Red(m) {
  if (typeof m === 'string') {
    var prime = BN._prime(m);
    this.m = prime.p;
    this.prime = prime;
  } else {
    this.m = m;
    this.prime = null;
  }
}

Red.prototype._verify1 = function _verify1(a) {
  assert(!a.sign, 'red works only with positives');
  assert(a.red, 'red works only with red numbers');
};

Red.prototype._verify2 = function _verify2(a, b) {
  assert(!a.sign && !b.sign, 'red works only with positives');
  assert(a.red && a.red === b.red,
         'red works only with red numbers');
};

Red.prototype.imod = function imod(a) {
  if (this.prime)
    return this.prime.ireduce(a)._forceRed(this);
  return a.mod(this.m)._forceRed(this);
};

Red.prototype.neg = function neg(a) {
  var r = a.clone();
  r.sign = !r.sign;
  return r.iadd(this.m)._forceRed(this);
};

Red.prototype.add = function add(a, b) {
  this._verify2(a, b);

  var res = a.add(b);
  if (res.cmp(this.m) >= 0)
    res.isub(this.m);
  return res._forceRed(this);
};

Red.prototype.iadd = function iadd(a, b) {
  this._verify2(a, b);

  var res = a.iadd(b);
  if (res.cmp(this.m) >= 0)
    res.isub(this.m);
  return res;
};

Red.prototype.sub = function sub(a, b) {
  this._verify2(a, b);

  var res = a.sub(b);
  if (res.cmpn(0) < 0)
    res.iadd(this.m);
  return res._forceRed(this);
};

Red.prototype.isub = function isub(a, b) {
  this._verify2(a, b);

  var res = a.isub(b);
  if (res.cmpn(0) < 0)
    res.iadd(this.m);
  return res;
};

Red.prototype.shl = function shl(a, num) {
  this._verify1(a);
  return this.imod(a.shln(num));
};

Red.prototype.imul = function imul(a, b) {
  this._verify2(a, b);
  return this.imod(a.imul(b));
};

Red.prototype.mul = function mul(a, b) {
  this._verify2(a, b);
  return this.imod(a.mul(b));
};

Red.prototype.isqr = function isqr(a) {
  return this.imul(a, a);
};

Red.prototype.sqr = function sqr(a) {
  return this.mul(a, a);
};

Red.prototype.sqrt = function sqrt(a) {
  if (a.cmpn(0) === 0)
    return a.clone();

  var mod3 = this.m.andln(3);
  assert(mod3 % 2 === 1);

  // Fast case
  if (mod3 === 3) {
    var pow = this.m.add(new BN(1)).ishrn(2);
    var r = this.pow(a, pow);
    return r;
  }

  // Tonelli-Shanks algorithm (Totally unoptimized and slow)
  //
  // Find Q and S, that Q * 2 ^ S = (P - 1)
  var q = this.m.subn(1);
  var s = 0;
  while (q.cmpn(0) !== 0 && q.andln(1) === 0) {
    s++;
    q.ishrn(1);
  }
  assert(q.cmpn(0) !== 0);

  var one = new BN(1).toRed(this);
  var nOne = one.redNeg();

  // Find quadratic non-residue
  // NOTE: Max is such because of generalized Riemann hypothesis.
  var lpow = this.m.subn(1).ishrn(1);
  var z = this.m.bitLength();
  z = new BN(2 * z * z).toRed(this);
  while (this.pow(z, lpow).cmp(nOne) !== 0)
    z.redIAdd(nOne);

  var c = this.pow(z, q);
  var r = this.pow(a, q.addn(1).ishrn(1));
  var t = this.pow(a, q);
  var m = s;
  while (t.cmp(one) !== 0) {
    var tmp = t;
    for (var i = 0; tmp.cmp(one) !== 0; i++)
      tmp = tmp.redSqr();
    assert(i < m);
    var b = this.pow(c, new BN(1).ishln(m - i - 1));

    r = r.redMul(b);
    c = b.redSqr();
    t = t.redMul(c);
    m = i;
  }

  return r;
};

Red.prototype.invm = function invm(a) {
  var inv = a._invmp(this.m);
  if (inv.sign) {
    inv.sign = false;
    return this.imod(inv).redNeg();
  } else {
    return this.imod(inv);
  }
};

Red.prototype.pow = function pow(a, num) {
  var w = [];

  if (num.cmpn(0) === 0)
    return new BN(1);

  var q = num.clone();

  while (q.cmpn(0) !== 0) {
    w.push(q.andln(1));
    q.ishrn(1);
  }

  // Skip leading zeroes
  var res = a;
  for (var i = 0; i < w.length; i++, res = this.sqr(res))
    if (w[i] !== 0)
      break;

  if (++i < w.length) {
    for (var q = this.sqr(res); i < w.length; i++, q = this.sqr(q)) {
      if (w[i] === 0)
        continue;
      res = this.mul(res, q);
    }
  }

  return res;
};

Red.prototype.convertTo = function convertTo(num) {
  var r = num.mod(this.m);
  if (r === num)
    return r.clone();
  else
    return r;
};

Red.prototype.convertFrom = function convertFrom(num) {
  var res = num.clone();
  res.red = null;
  return res;
};

//
// Montgomery method engine
//

BN.mont = function mont(num) {
  return new Mont(num);
};

function Mont(m) {
  Red.call(this, m);

  this.shift = this.m.bitLength();
  if (this.shift % 26 !== 0)
    this.shift += 26 - (this.shift % 26);
  this.r = new BN(1).ishln(this.shift);
  this.r2 = this.imod(this.r.sqr());
  this.rinv = this.r._invmp(this.m);

  this.minv = this.rinv.mul(this.r).isubn(1).div(this.m);
  this.minv.sign = true;
  this.minv = this.minv.mod(this.r);
}
inherits(Mont, Red);

Mont.prototype.convertTo = function convertTo(num) {
  return this.imod(num.shln(this.shift));
};

Mont.prototype.convertFrom = function convertFrom(num) {
  var r = this.imod(num.mul(this.rinv));
  r.red = null;
  return r;
};

Mont.prototype.imul = function imul(a, b) {
  if (a.cmpn(0) === 0 || b.cmpn(0) === 0) {
    a.words[0] = 0;
    a.length = 1;
    return a;
  }

  var t = a.imul(b);
  var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);
  var u = t.isub(c).ishrn(this.shift);
  var res = u;
  if (u.cmp(this.m) >= 0)
    res = u.isub(this.m);
  else if (u.cmpn(0) < 0)
    res = u.iadd(this.m);

  return res._forceRed(this);
};

Mont.prototype.mul = function mul(a, b) {
  if (a.cmpn(0) === 0 || b.cmpn(0) === 0)
    return new BN(0)._forceRed(this);

  var t = a.mul(b);
  var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);
  var u = t.isub(c).ishrn(this.shift);
  var res = u;
  if (u.cmp(this.m) >= 0)
    res = u.isub(this.m);
  else if (u.cmpn(0) < 0)
    res = u.iadd(this.m);

  return res._forceRed(this);
};

Mont.prototype.invm = function invm(a) {
  // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R
  var res = this.imod(a._invmp(this.m).mul(this.r2));
  return res._forceRed(this);
};

})(typeof module === 'undefined' || module, this);

},{}],56:[function(require,module,exports){
(function (Buffer){
var bn = require('bn.js');
var randomBytes = require('randombytes');
module.exports = crt;
function blind(priv) {
  var r = getr(priv);
  var blinder = r.toRed(bn.mont(priv.modulus))
  .redPow(new bn(priv.publicExponent)).fromRed();
  return {
    blinder: blinder,
    unblinder:r.invm(priv.modulus)
  };
}
function crt(msg, priv) {
  var blinds = blind(priv);
  var len = priv.modulus.byteLength();
  var mod = bn.mont(priv.modulus);
  var blinded = new bn(msg).mul(blinds.blinder).mod(priv.modulus);
  var c1 = blinded.toRed(bn.mont(priv.prime1));
  var c2 = blinded.toRed(bn.mont(priv.prime2));
  var qinv = priv.coefficient;
  var p = priv.prime1;
  var q = priv.prime2;
  var m1 = c1.redPow(priv.exponent1);
  var m2 = c2.redPow(priv.exponent2);
  m1 = m1.fromRed();
  m2 = m2.fromRed();
  var h = m1.isub(m2).imul(qinv).mod(p);
  h.imul(q);
  m2.iadd(h);
  var out = new Buffer(m2.imul(blinds.unblinder).mod(priv.modulus).toArray());
  if (out.length < len) {
    var prefix = new Buffer(len - out.length);
    prefix.fill(0);
    out = Buffer.concat([prefix, out], len);
  }
  return out;
}
crt.getr = getr;
function getr(priv) {
  var len = priv.modulus.byteLength();
  var r = new bn(randomBytes(len));
  while (r.cmp(priv.modulus) >=  0 || !r.mod(priv.prime1) || !r.mod(priv.prime2)) {
    r = new bn(randomBytes(len));
  }
  return r;
}
}).call(this,require("buffer").Buffer)
},{"bn.js":55,"buffer":18,"randombytes":207}],57:[function(require,module,exports){
'use strict';

var elliptic = exports;

elliptic.version = require('../package.json').version;
elliptic.utils = require('./elliptic/utils');
elliptic.rand = require('brorand');
elliptic.hmacDRBG = require('./elliptic/hmac-drbg');
elliptic.curve = require('./elliptic/curve');
elliptic.curves = require('./elliptic/curves');

// Protocols
elliptic.ec = require('./elliptic/ec');

},{"../package.json":77,"./elliptic/curve":60,"./elliptic/curves":63,"./elliptic/ec":64,"./elliptic/hmac-drbg":67,"./elliptic/utils":69,"brorand":70}],58:[function(require,module,exports){
'use strict';

var bn = require('bn.js');
var elliptic = require('../../elliptic');

var getNAF = elliptic.utils.getNAF;
var getJSF = elliptic.utils.getJSF;
var assert = elliptic.utils.assert;

function BaseCurve(type, conf) {
  this.type = type;
  this.p = new bn(conf.p, 16);

  // Use Montgomery, when there is no fast reduction for the prime
  this.red = conf.prime ? bn.red(conf.prime) : bn.mont(this.p);

  // Useful for many curves
  this.zero = new bn(0).toRed(this.red);
  this.one = new bn(1).toRed(this.red);
  this.two = new bn(2).toRed(this.red);

  // Curve configuration, optional
  this.n = conf.n && new bn(conf.n, 16);
  this.g = conf.g && this.pointFromJSON(conf.g, conf.gRed);

  // Temporary arrays
  this._wnafT1 = new Array(4);
  this._wnafT2 = new Array(4);
  this._wnafT3 = new Array(4);
  this._wnafT4 = new Array(4);
}
module.exports = BaseCurve;

BaseCurve.prototype.point = function point() {
  throw new Error('Not implemented');
};

BaseCurve.prototype.validate = function validate() {
  throw new Error('Not implemented');
};

BaseCurve.prototype._fixedNafMul = function _fixedNafMul(p, k) {
  assert(p.precomputed);
  var doubles = p._getDoubles();

  var naf = getNAF(k, 1);
  var I = (1 << (doubles.step + 1)) - (doubles.step % 2 === 0 ? 2 : 1);
  I /= 3;

  // Translate into more windowed form
  var repr = [];
  for (var j = 0; j < naf.length; j += doubles.step) {
    var nafW = 0;
    for (var k = j + doubles.step - 1; k >= j; k--)
      nafW = (nafW << 1) + naf[k];
    repr.push(nafW);
  }

  var a = this.jpoint(null, null, null);
  var b = this.jpoint(null, null, null);
  for (var i = I; i > 0; i--) {
    for (var j = 0; j < repr.length; j++) {
      var nafW = repr[j];
      if (nafW === i)
        b = b.mixedAdd(doubles.points[j]);
      else if (nafW === -i)
        b = b.mixedAdd(doubles.points[j].neg());
    }
    a = a.add(b);
  }
  return a.toP();
};

BaseCurve.prototype._wnafMul = function _wnafMul(p, k) {
  var w = 4;

  // Precompute window
  var nafPoints = p._getNAFPoints(w);
  w = nafPoints.wnd;
  var wnd = nafPoints.points;

  // Get NAF form
  var naf = getNAF(k, w);

  // Add `this`*(N+1) for every w-NAF index
  var acc = this.jpoint(null, null, null);
  for (var i = naf.length - 1; i >= 0; i--) {
    // Count zeroes
    for (var k = 0; i >= 0 && naf[i] === 0; i--)
      k++;
    if (i >= 0)
      k++;
    acc = acc.dblp(k);

    if (i < 0)
      break;
    var z = naf[i];
    assert(z !== 0);
    if (p.type === 'affine') {
      // J +- P
      if (z > 0)
        acc = acc.mixedAdd(wnd[(z - 1) >> 1]);
      else
        acc = acc.mixedAdd(wnd[(-z - 1) >> 1].neg());
    } else {
      // J +- J
      if (z > 0)
        acc = acc.add(wnd[(z - 1) >> 1]);
      else
        acc = acc.add(wnd[(-z - 1) >> 1].neg());
    }
  }
  return p.type === 'affine' ? acc.toP() : acc;
};

BaseCurve.prototype._wnafMulAdd = function _wnafMulAdd(defW,
                                                       points,
                                                       coeffs,
                                                       len) {
  var wndWidth = this._wnafT1;
  var wnd = this._wnafT2;
  var naf = this._wnafT3;

  // Fill all arrays
  var max = 0;
  for (var i = 0; i < len; i++) {
    var p = points[i];
    var nafPoints = p._getNAFPoints(defW);
    wndWidth[i] = nafPoints.wnd;
    wnd[i] = nafPoints.points;
  }

  // Comb small window NAFs
  for (var i = len - 1; i >= 1; i -= 2) {
    var a = i - 1;
    var b = i;
    if (wndWidth[a] !== 1 || wndWidth[b] !== 1) {
      naf[a] = getNAF(coeffs[a], wndWidth[a]);
      naf[b] = getNAF(coeffs[b], wndWidth[b]);
      max = Math.max(naf[a].length, max);
      max = Math.max(naf[b].length, max);
      continue;
    }

    var comb = [
      points[a], /* 1 */
      null, /* 3 */
      null, /* 5 */
      points[b] /* 7 */
    ];

    // Try to avoid Projective points, if possible
    if (points[a].y.cmp(points[b].y) === 0) {
      comb[1] = points[a].add(points[b]);
      comb[2] = points[a].toJ().mixedAdd(points[b].neg());
    } else if (points[a].y.cmp(points[b].y.redNeg()) === 0) {
      comb[1] = points[a].toJ().mixedAdd(points[b]);
      comb[2] = points[a].add(points[b].neg());
    } else {
      comb[1] = points[a].toJ().mixedAdd(points[b]);
      comb[2] = points[a].toJ().mixedAdd(points[b].neg());
    }

    var index = [
      -3, /* -1 -1 */
      -1, /* -1 0 */
      -5, /* -1 1 */
      -7, /* 0 -1 */
      0, /* 0 0 */
      7, /* 0 1 */
      5, /* 1 -1 */
      1, /* 1 0 */
      3  /* 1 1 */
    ];

    var jsf = getJSF(coeffs[a], coeffs[b]);
    max = Math.max(jsf[0].length, max);
    naf[a] = new Array(max);
    naf[b] = new Array(max);
    for (var j = 0; j < max; j++) {
      var ja = jsf[0][j] | 0;
      var jb = jsf[1][j] | 0;

      naf[a][j] = index[(ja + 1) * 3 + (jb + 1)];
      naf[b][j] = 0;
      wnd[a] = comb;
    }
  }

  var acc = this.jpoint(null, null, null);
  var tmp = this._wnafT4;
  for (var i = max; i >= 0; i--) {
    var k = 0;

    while (i >= 0) {
      var zero = true;
      for (var j = 0; j < len; j++) {
        tmp[j] = naf[j][i] | 0;
        if (tmp[j] !== 0)
          zero = false;
      }
      if (!zero)
        break;
      k++;
      i--;
    }
    if (i >= 0)
      k++;
    acc = acc.dblp(k);
    if (i < 0)
      break;

    for (var j = 0; j < len; j++) {
      var z = tmp[j];
      var p;
      if (z === 0)
        continue;
      else if (z > 0)
        p = wnd[j][(z - 1) >> 1];
      else if (z < 0)
        p = wnd[j][(-z - 1) >> 1].neg();

      if (p.type === 'affine')
        acc = acc.mixedAdd(p);
      else
        acc = acc.add(p);
    }
  }
  // Zeroify references
  for (var i = 0; i < len; i++)
    wnd[i] = null;
  return acc.toP();
};

function BasePoint(curve, type) {
  this.curve = curve;
  this.type = type;
  this.precomputed = null;
}
BaseCurve.BasePoint = BasePoint;

BasePoint.prototype.validate = function validate() {
  return this.curve.validate(this);
};

BasePoint.prototype.precompute = function precompute(power) {
  if (this.precomputed)
    return this;

  var precomputed = {
    doubles: null,
    naf: null,
    beta: null
  };
  precomputed.naf = this._getNAFPoints(8);
  precomputed.doubles = this._getDoubles(4, power);
  precomputed.beta = this._getBeta();
  this.precomputed = precomputed;

  return this;
};

BasePoint.prototype._hasDoubles = function _hasDoubles(k) {
  if (!this.precomputed)
    return false;

  var doubles = this.precomputed.doubles;
  if (!doubles)
    return false;

  return doubles.points.length >= Math.ceil((k.bitLength() + 1) / doubles.step);
};

BasePoint.prototype._getDoubles = function _getDoubles(step, power) {
  if (this.precomputed && this.precomputed.doubles)
    return this.precomputed.doubles;

  var doubles = [ this ];
  var acc = this;
  for (var i = 0; i < power; i += step) {
    for (var j = 0; j < step; j++)
      acc = acc.dbl();
    doubles.push(acc);
  }
  return {
    step: step,
    points: doubles
  };
};

BasePoint.prototype._getNAFPoints = function _getNAFPoints(wnd) {
  if (this.precomputed && this.precomputed.naf)
    return this.precomputed.naf;

  var res = [ this ];
  var max = (1 << wnd) - 1;
  var dbl = max === 1 ? null : this.dbl();
  for (var i = 1; i < max; i++)
    res[i] = res[i - 1].add(dbl);
  return {
    wnd: wnd,
    points: res
  };
};

BasePoint.prototype._getBeta = function _getBeta() {
  return null;
};

BasePoint.prototype.dblp = function dblp(k) {
  var r = this;
  for (var i = 0; i < k; i++)
    r = r.dbl();
  return r;
};

},{"../../elliptic":57,"bn.js":55}],59:[function(require,module,exports){
'use strict';

var curve = require('../curve');
var elliptic = require('../../elliptic');
var bn = require('bn.js');
var inherits = require('inherits');
var Base = curve.base;

var assert = elliptic.utils.assert;

function EdwardsCurve(conf) {
  // NOTE: Important as we are creating point in Base.call()
  this.twisted = (conf.a | 0) !== 1;
  this.mOneA = this.twisted && (conf.a | 0) === -1;
  this.extended = this.mOneA;

  Base.call(this, 'edwards', conf);

  this.a = new bn(conf.a, 16).mod(this.red.m).toRed(this.red);
  this.c = new bn(conf.c, 16).toRed(this.red);
  this.c2 = this.c.redSqr();
  this.d = new bn(conf.d, 16).toRed(this.red);
  this.dd = this.d.redAdd(this.d);

  assert(!this.twisted || this.c.fromRed().cmpn(1) === 0);
  this.oneC = (conf.c | 0) === 1;
}
inherits(EdwardsCurve, Base);
module.exports = EdwardsCurve;

EdwardsCurve.prototype._mulA = function _mulA(num) {
  if (this.mOneA)
    return num.redNeg();
  else
    return this.a.redMul(num);
};

EdwardsCurve.prototype._mulC = function _mulC(num) {
  if (this.oneC)
    return num;
  else
    return this.c.redMul(num);
};

// Just for compatibility with Short curve
EdwardsCurve.prototype.jpoint = function jpoint(x, y, z, t) {
  return this.point(x, y, z, t);
};

EdwardsCurve.prototype.pointFromX = function pointFromX(odd, x) {
  x = new bn(x, 16);
  if (!x.red)
    x = x.toRed(this.red);

  var x2 = x.redSqr();
  var rhs = this.c2.redSub(this.a.redMul(x2));
  var lhs = this.one.redSub(this.c2.redMul(this.d).redMul(x2));

  var y = rhs.redMul(lhs.redInvm()).redSqrt();
  var isOdd = y.fromRed().isOdd();
  if (odd && !isOdd || !odd && isOdd)
    y = y.redNeg();

  return this.point(x, y, curve.one);
};

EdwardsCurve.prototype.validate = function validate(point) {
  if (point.isInfinity())
    return true;

  // Curve: A * X^2 + Y^2 = C^2 * (1 + D * X^2 * Y^2)
  point.normalize();

  var x2 = point.x.redSqr();
  var y2 = point.y.redSqr();
  var lhs = x2.redMul(this.a).redAdd(y2);
  var rhs = this.c2.redMul(this.one.redAdd(this.d.redMul(x2).redMul(y2)));

  return lhs.cmp(rhs) === 0;
};

function Point(curve, x, y, z, t) {
  Base.BasePoint.call(this, curve, 'projective');
  if (x === null && y === null && z === null) {
    this.x = this.curve.zero;
    this.y = this.curve.one;
    this.z = this.curve.one;
    this.t = this.curve.zero;
    this.zOne = true;
  } else {
    this.x = new bn(x, 16);
    this.y = new bn(y, 16);
    this.z = z ? new bn(z, 16) : this.curve.one;
    this.t = t && new bn(t, 16);
    if (!this.x.red)
      this.x = this.x.toRed(this.curve.red);
    if (!this.y.red)
      this.y = this.y.toRed(this.curve.red);
    if (!this.z.red)
      this.z = this.z.toRed(this.curve.red);
    if (this.t && !this.t.red)
      this.t = this.t.toRed(this.curve.red);
    this.zOne = this.z === this.curve.one;

    // Use extended coordinates
    if (this.curve.extended && !this.t) {
      this.t = this.x.redMul(this.y);
      if (!this.zOne)
        this.t = this.t.redMul(this.z.redInvm());
    }
  }
}
inherits(Point, Base.BasePoint);

EdwardsCurve.prototype.pointFromJSON = function pointFromJSON(obj) {
  return Point.fromJSON(this, obj);
};

EdwardsCurve.prototype.point = function point(x, y, z, t) {
  return new Point(this, x, y, z, t);
};

Point.fromJSON = function fromJSON(curve, obj) {
  return new Point(curve, obj[0], obj[1], obj[2]);
};

Point.prototype.inspect = function inspect() {
  if (this.isInfinity())
    return '<EC Point Infinity>';
  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
      ' y: ' + this.y.fromRed().toString(16, 2) +
      ' z: ' + this.z.fromRed().toString(16, 2) + '>';
};

Point.prototype.isInfinity = function isInfinity() {
  // XXX This code assumes that zero is always zero in red
  return this.x.cmpn(0) === 0 &&
         this.y.cmp(this.z) === 0;
};

Point.prototype._extDbl = function _extDbl() {
  // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
  //     #doubling-dbl-2008-hwcd
  // 4M + 4S

  // A = X1^2
  var a = this.x.redSqr();
  // B = Y1^2
  var b = this.y.redSqr();
  // C = 2 * Z1^2
  var c = this.z.redSqr();
  c = c.redIAdd(c);
  // D = a * A
  var d = this.curve._mulA(a);
  // E = (X1 + Y1)^2 - A - B
  var e = this.x.redAdd(this.y).redSqr().redISub(a).redISub(b);
  // G = D + B
  var g = d.redAdd(b);
  // F = G - C
  var f = g.redSub(c);
  // H = D - B
  var h = d.redSub(b);
  // X3 = E * F
  var nx = e.redMul(f);
  // Y3 = G * H
  var ny = g.redMul(h);
  // T3 = E * H
  var nt = e.redMul(h);
  // Z3 = F * G
  var nz = f.redMul(g);
  return this.curve.point(nx, ny, nz, nt);
};

Point.prototype._projDbl = function _projDbl() {
  // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html
  //     #doubling-dbl-2008-bbjlp
  //     #doubling-dbl-2007-bl
  // and others
  // Generally 3M + 4S or 2M + 4S

  // B = (X1 + Y1)^2
  var b = this.x.redAdd(this.y).redSqr();
  // C = X1^2
  var c = this.x.redSqr();
  // D = Y1^2
  var d = this.y.redSqr();

  var nx;
  var ny;
  var nz;
  if (this.curve.twisted) {
    // E = a * C
    var e = this.curve._mulA(c);
    // F = E + D
    var f = e.redAdd(d);
    if (this.zOne) {
      // X3 = (B - C - D) * (F - 2)
      nx = b.redSub(c).redSub(d).redMul(f.redSub(this.curve.two));
      // Y3 = F * (E - D)
      ny = f.redMul(e.redSub(d));
      // Z3 = F^2 - 2 * F
      nz = f.redSqr().redSub(f).redSub(f);
    } else {
      // H = Z1^2
      var h = this.z.redSqr();
      // J = F - 2 * H
      var j = f.redSub(h).redISub(h);
      // X3 = (B-C-D)*J
      nx = b.redSub(c).redISub(d).redMul(j);
      // Y3 = F * (E - D)
      ny = f.redMul(e.redSub(d));
      // Z3 = F * J
      nz = f.redMul(j);
    }
  } else {
    // E = C + D
    var e = c.redAdd(d);
    // H = (c * Z1)^2
    var h = this.curve._mulC(this.c.redMul(this.z)).redSqr();
    // J = E - 2 * H
    var j = e.redSub(h).redSub(h);
    // X3 = c * (B - E) * J
    nx = this.curve._mulC(b.redISub(e)).redMul(j);
    // Y3 = c * E * (C - D)
    ny = this.curve._mulC(e).redMul(c.redISub(d));
    // Z3 = E * J
    nz = e.redMul(j);
  }
  return this.curve.point(nx, ny, nz);
};

Point.prototype.dbl = function dbl() {
  if (this.isInfinity())
    return this;

  // Double in extended coordinates
  if (this.curve.extended)
    return this._extDbl();
  else
    return this._projDbl();
};

Point.prototype._extAdd = function _extAdd(p) {
  // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
  //     #addition-add-2008-hwcd-3
  // 8M

  // A = (Y1 - X1) * (Y2 - X2)
  var a = this.y.redSub(this.x).redMul(p.y.redSub(p.x));
  // B = (Y1 + X1) * (Y2 + X2)
  var b = this.y.redAdd(this.x).redMul(p.y.redAdd(p.x));
  // C = T1 * k * T2
  var c = this.t.redMul(this.curve.dd).redMul(p.t);
  // D = Z1 * 2 * Z2
  var d = this.z.redMul(p.z.redAdd(p.z));
  // E = B - A
  var e = b.redSub(a);
  // F = D - C
  var f = d.redSub(c);
  // G = D + C
  var g = d.redAdd(c);
  // H = B + A
  var h = b.redAdd(a);
  // X3 = E * F
  var nx = e.redMul(f);
  // Y3 = G * H
  var ny = g.redMul(h);
  // T3 = E * H
  var nt = e.redMul(h);
  // Z3 = F * G
  var nz = f.redMul(g);
  return this.curve.point(nx, ny, nz, nt);
};

Point.prototype._projAdd = function _projAdd(p) {
  // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html
  //     #addition-add-2008-bbjlp
  //     #addition-add-2007-bl
  // 10M + 1S

  // A = Z1 * Z2
  var a = this.z.redMul(p.z);
  // B = A^2
  var b = a.redSqr();
  // C = X1 * X2
  var c = this.x.redMul(p.x);
  // D = Y1 * Y2
  var d = this.y.redMul(p.y);
  // E = d * C * D
  var e = this.curve.d.redMul(c).redMul(d);
  // F = B - E
  var f = b.redSub(e);
  // G = B + E
  var g = b.redAdd(e);
  // X3 = A * F * ((X1 + Y1) * (X2 + Y2) - C - D)
  var tmp = this.x.redAdd(this.y).redMul(p.x.redAdd(p.y)).redISub(c).redISub(d);
  var nx = a.redMul(f).redMul(tmp);
  var ny;
  var nz;
  if (this.curve.twisted) {
    // Y3 = A * G * (D - a * C)
    ny = a.redMul(g).redMul(d.redSub(this.curve._mulA(c)));
    // Z3 = F * G
    nz = f.redMul(g);
  } else {
    // Y3 = A * G * (D - C)
    ny = a.redMul(g).redMul(d.redSub(c));
    // Z3 = c * F * G
    nz = this.curve._mulC(f).redMul(g);
  }
  return this.curve.point(nx, ny, nz);
};

Point.prototype.add = function add(p) {
  if (this.isInfinity())
    return p;
  if (p.isInfinity())
    return this;

  if (this.curve.extended)
    return this._extAdd(p);
  else
    return this._projAdd(p);
};

Point.prototype.mul = function mul(k) {
  if (this._hasDoubles(k))
    return this.curve._fixedNafMul(this, k);
  else
    return this.curve._wnafMul(this, k);
};

Point.prototype.mulAdd = function mulAdd(k1, p, k2) {
  return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2);
};

Point.prototype.normalize = function normalize() {
  if (this.zOne)
    return this;

  // Normalize coordinates
  var zi = this.z.redInvm();
  this.x = this.x.redMul(zi);
  this.y = this.y.redMul(zi);
  if (this.t)
    this.t = this.t.redMul(zi);
  this.z = this.curve.one;
  this.zOne = true;
  return this;
};

Point.prototype.neg = function neg() {
  return this.curve.point(this.x.redNeg(),
                          this.y,
                          this.z,
                          this.t && this.t.redNeg());
};

Point.prototype.getX = function getX() {
  this.normalize();
  return this.x.fromRed();
};

Point.prototype.getY = function getY() {
  this.normalize();
  return this.y.fromRed();
};

// Compatibility with BaseCurve
Point.prototype.toP = Point.prototype.normalize;
Point.prototype.mixedAdd = Point.prototype.add;

},{"../../elliptic":57,"../curve":60,"bn.js":55,"inherits":210}],60:[function(require,module,exports){
'use strict';

var curve = exports;

curve.base = require('./base');
curve.short = require('./short');
curve.mont = require('./mont');
curve.edwards = require('./edwards');

},{"./base":58,"./edwards":59,"./mont":61,"./short":62}],61:[function(require,module,exports){
'use strict';

var curve = require('../curve');
var bn = require('bn.js');
var inherits = require('inherits');
var Base = curve.base;

function MontCurve(conf) {
  Base.call(this, 'mont', conf);

  this.a = new bn(conf.a, 16).toRed(this.red);
  this.b = new bn(conf.b, 16).toRed(this.red);
  this.i4 = new bn(4).toRed(this.red).redInvm();
  this.two = new bn(2).toRed(this.red);
  this.a24 = this.i4.redMul(this.a.redAdd(this.two));
}
inherits(MontCurve, Base);
module.exports = MontCurve;

MontCurve.prototype.validate = function validate(point) {
  var x = point.normalize().x;
  var x2 = x.redSqr();
  var rhs = x2.redMul(x).redAdd(x2.redMul(this.a)).redAdd(x);
  var y = rhs.redSqrt();

  return y.redSqr().cmp(rhs) === 0;
};

function Point(curve, x, z) {
  Base.BasePoint.call(this, curve, 'projective');
  if (x === null && z === null) {
    this.x = this.curve.one;
    this.z = this.curve.zero;
  } else {
    this.x = new bn(x, 16);
    this.z = new bn(z, 16);
    if (!this.x.red)
      this.x = this.x.toRed(this.curve.red);
    if (!this.z.red)
      this.z = this.z.toRed(this.curve.red);
  }
}
inherits(Point, Base.BasePoint);

MontCurve.prototype.point = function point(x, z) {
  return new Point(this, x, z);
};

MontCurve.prototype.pointFromJSON = function pointFromJSON(obj) {
  return Point.fromJSON(this, obj);
};

Point.prototype.precompute = function precompute() {
  // No-op
};

Point.fromJSON = function fromJSON(curve, obj) {
  return new Point(curve, obj[0], obj[1] || curve.one);
};

Point.prototype.inspect = function inspect() {
  if (this.isInfinity())
    return '<EC Point Infinity>';
  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
      ' z: ' + this.z.fromRed().toString(16, 2) + '>';
};

Point.prototype.isInfinity = function isInfinity() {
  // XXX This code assumes that zero is always zero in red
  return this.z.cmpn(0) === 0;
};

Point.prototype.dbl = function dbl() {
  // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#doubling-dbl-1987-m-3
  // 2M + 2S + 4A

  // A = X1 + Z1
  var a = this.x.redAdd(this.z);
  // AA = A^2
  var aa = a.redSqr();
  // B = X1 - Z1
  var b = this.x.redSub(this.z);
  // BB = B^2
  var bb = b.redSqr();
  // C = AA - BB
  var c = aa.redSub(bb);
  // X3 = AA * BB
  var nx = aa.redMul(bb);
  // Z3 = C * (BB + A24 * C)
  var nz = c.redMul(bb.redAdd(this.curve.a24.redMul(c)));
  return this.curve.point(nx, nz);
};

Point.prototype.add = function add() {
  throw new Error('Not supported on Montgomery curve');
};

Point.prototype.diffAdd = function diffAdd(p, diff) {
  // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#diffadd-dadd-1987-m-3
  // 4M + 2S + 6A

  // A = X2 + Z2
  var a = this.x.redAdd(this.z);
  // B = X2 - Z2
  var b = this.x.redSub(this.z);
  // C = X3 + Z3
  var c = p.x.redAdd(p.z);
  // D = X3 - Z3
  var d = p.x.redSub(p.z);
  // DA = D * A
  var da = d.redMul(a);
  // CB = C * B
  var cb = c.redMul(b);
  // X5 = Z1 * (DA + CB)^2
  var nx = diff.z.redMul(da.redAdd(cb).redSqr());
  // Z5 = X1 * (DA - CB)^2
  var nz = diff.x.redMul(da.redISub(cb).redSqr());
  return this.curve.point(nx, nz);
};

Point.prototype.mul = function mul(k) {
  var t = k.clone();
  var a = this; // (N / 2) * Q + Q
  var b = this.curve.point(null, null); // (N / 2) * Q
  var c = this; // Q

  for (var bits = []; t.cmpn(0) !== 0; t.ishrn(1))
    bits.push(t.andln(1));

  for (var i = bits.length - 1; i >= 0; i--) {
    if (bits[i] === 0) {
      // N * Q + Q = ((N / 2) * Q + Q)) + (N / 2) * Q
      a = a.diffAdd(b, c);
      // N * Q = 2 * ((N / 2) * Q + Q))
      b = b.dbl();
    } else {
      // N * Q = ((N / 2) * Q + Q) + ((N / 2) * Q)
      b = a.diffAdd(b, c);
      // N * Q + Q = 2 * ((N / 2) * Q + Q)
      a = a.dbl();
    }
  }
  return b;
};

Point.prototype.mulAdd = function mulAdd() {
  throw new Error('Not supported on Montgomery curve');
};

Point.prototype.normalize = function normalize() {
  this.x = this.x.redMul(this.z.redInvm());
  this.z = this.curve.one;
  return this;
};

Point.prototype.getX = function getX() {
  // Normalize coordinates
  this.normalize();

  return this.x.fromRed();
};

},{"../curve":60,"bn.js":55,"inherits":210}],62:[function(require,module,exports){
'use strict';

var curve = require('../curve');
var elliptic = require('../../elliptic');
var bn = require('bn.js');
var inherits = require('inherits');
var Base = curve.base;

var assert = elliptic.utils.assert;

function ShortCurve(conf) {
  Base.call(this, 'short', conf);

  this.a = new bn(conf.a, 16).toRed(this.red);
  this.b = new bn(conf.b, 16).toRed(this.red);
  this.tinv = this.two.redInvm();

  this.zeroA = this.a.fromRed().cmpn(0) === 0;
  this.threeA = this.a.fromRed().sub(this.p).cmpn(-3) === 0;

  // If the curve is endomorphic, precalculate beta and lambda
  this.endo = this._getEndomorphism(conf);
  this._endoWnafT1 = new Array(4);
  this._endoWnafT2 = new Array(4);
}
inherits(ShortCurve, Base);
module.exports = ShortCurve;

ShortCurve.prototype._getEndomorphism = function _getEndomorphism(conf) {
  // No efficient endomorphism
  if (!this.zeroA || !this.g || !this.n || this.p.modn(3) !== 1)
    return;

  // Compute beta and lambda, that lambda * P = (beta * Px; Py)
  var beta;
  var lambda;
  if (conf.beta) {
    beta = new bn(conf.beta, 16).toRed(this.red);
  } else {
    var betas = this._getEndoRoots(this.p);
    // Choose the smallest beta
    beta = betas[0].cmp(betas[1]) < 0 ? betas[0] : betas[1];
    beta = beta.toRed(this.red);
  }
  if (conf.lambda) {
    lambda = new bn(conf.lambda, 16);
  } else {
    // Choose the lambda that is matching selected beta
    var lambdas = this._getEndoRoots(this.n);
    if (this.g.mul(lambdas[0]).x.cmp(this.g.x.redMul(beta)) === 0) {
      lambda = lambdas[0];
    } else {
      lambda = lambdas[1];
      assert(this.g.mul(lambda).x.cmp(this.g.x.redMul(beta)) === 0);
    }
  }

  // Get basis vectors, used for balanced length-two representation
  var basis;
  if (conf.basis) {
    basis = conf.basis.map(function(vec) {
      return {
        a: new bn(vec.a, 16),
        b: new bn(vec.b, 16)
      };
    });
  } else {
    basis = this._getEndoBasis(lambda);
  }

  return {
    beta: beta,
    lambda: lambda,
    basis: basis
  };
};

ShortCurve.prototype._getEndoRoots = function _getEndoRoots(num) {
  // Find roots of for x^2 + x + 1 in F
  // Root = (-1 +- Sqrt(-3)) / 2
  //
  var red = num === this.p ? this.red : bn.mont(num);
  var tinv = new bn(2).toRed(red).redInvm();
  var ntinv = tinv.redNeg();

  var s = new bn(3).toRed(red).redNeg().redSqrt().redMul(tinv);

  var l1 = ntinv.redAdd(s).fromRed();
  var l2 = ntinv.redSub(s).fromRed();
  return [ l1, l2 ];
};

ShortCurve.prototype._getEndoBasis = function _getEndoBasis(lambda) {
  // aprxSqrt >= sqrt(this.n)
  var aprxSqrt = this.n.shrn(Math.floor(this.n.bitLength() / 2));

  // 3.74
  // Run EGCD, until r(L + 1) < aprxSqrt
  var u = lambda;
  var v = this.n.clone();
  var x1 = new bn(1);
  var y1 = new bn(0);
  var x2 = new bn(0);
  var y2 = new bn(1);

  // NOTE: all vectors are roots of: a + b * lambda = 0 (mod n)
  var a0;
  var b0;
  // First vector
  var a1;
  var b1;
  // Second vector
  var a2;
  var b2;

  var prevR;
  var i = 0;
  var r;
  var x;
  while (u.cmpn(0) !== 0) {
    var q = v.div(u);
    r = v.sub(q.mul(u));
    x = x2.sub(q.mul(x1));
    var y = y2.sub(q.mul(y1));

    if (!a1 && r.cmp(aprxSqrt) < 0) {
      a0 = prevR.neg();
      b0 = x1;
      a1 = r.neg();
      b1 = x;
    } else if (a1 && ++i === 2) {
      break;
    }
    prevR = r;

    v = u;
    u = r;
    x2 = x1;
    x1 = x;
    y2 = y1;
    y1 = y;
  }
  a2 = r.neg();
  b2 = x;

  var len1 = a1.sqr().add(b1.sqr());
  var len2 = a2.sqr().add(b2.sqr());
  if (len2.cmp(len1) >= 0) {
    a2 = a0;
    b2 = b0;
  }

  // Normalize signs
  if (a1.sign) {
    a1 = a1.neg();
    b1 = b1.neg();
  }
  if (a2.sign) {
    a2 = a2.neg();
    b2 = b2.neg();
  }

  return [
    { a: a1, b: b1 },
    { a: a2, b: b2 }
  ];
};

ShortCurve.prototype._endoSplit = function _endoSplit(k) {
  var basis = this.endo.basis;
  var v1 = basis[0];
  var v2 = basis[1];

  var c1 = v2.b.mul(k).divRound(this.n);
  var c2 = v1.b.neg().mul(k).divRound(this.n);

  var p1 = c1.mul(v1.a);
  var p2 = c2.mul(v2.a);
  var q1 = c1.mul(v1.b);
  var q2 = c2.mul(v2.b);

  // Calculate answer
  var k1 = k.sub(p1).sub(p2);
  var k2 = q1.add(q2).neg();
  return { k1: k1, k2: k2 };
};

ShortCurve.prototype.pointFromX = function pointFromX(odd, x) {
  x = new bn(x, 16);
  if (!x.red)
    x = x.toRed(this.red);

  var y2 = x.redSqr().redMul(x).redIAdd(x.redMul(this.a)).redIAdd(this.b);
  var y = y2.redSqrt();

  // XXX Is there any way to tell if the number is odd without converting it
  // to non-red form?
  var isOdd = y.fromRed().isOdd();
  if (odd && !isOdd || !odd && isOdd)
    y = y.redNeg();

  return this.point(x, y);
};

ShortCurve.prototype.validate = function validate(point) {
  if (point.inf)
    return true;

  var x = point.x;
  var y = point.y;

  var ax = this.a.redMul(x);
  var rhs = x.redSqr().redMul(x).redIAdd(ax).redIAdd(this.b);
  return y.redSqr().redISub(rhs).cmpn(0) === 0;
};

ShortCurve.prototype._endoWnafMulAdd =
    function _endoWnafMulAdd(points, coeffs) {
  var npoints = this._endoWnafT1;
  var ncoeffs = this._endoWnafT2;
  for (var i = 0; i < points.length; i++) {
    var split = this._endoSplit(coeffs[i]);
    var p = points[i];
    var beta = p._getBeta();

    if (split.k1.sign) {
      split.k1.sign = !split.k1.sign;
      p = p.neg(true);
    }
    if (split.k2.sign) {
      split.k2.sign = !split.k2.sign;
      beta = beta.neg(true);
    }

    npoints[i * 2] = p;
    npoints[i * 2 + 1] = beta;
    ncoeffs[i * 2] = split.k1;
    ncoeffs[i * 2 + 1] = split.k2;
  }
  var res = this._wnafMulAdd(1, npoints, ncoeffs, i * 2);

  // Clean-up references to points and coefficients
  for (var j = 0; j < i * 2; j++) {
    npoints[j] = null;
    ncoeffs[j] = null;
  }
  return res;
};

function Point(curve, x, y, isRed) {
  Base.BasePoint.call(this, curve, 'affine');
  if (x === null && y === null) {
    this.x = null;
    this.y = null;
    this.inf = true;
  } else {
    this.x = new bn(x, 16);
    this.y = new bn(y, 16);
    // Force redgomery representation when loading from JSON
    if (isRed) {
      this.x.forceRed(this.curve.red);
      this.y.forceRed(this.curve.red);
    }
    if (!this.x.red)
      this.x = this.x.toRed(this.curve.red);
    if (!this.y.red)
      this.y = this.y.toRed(this.curve.red);
    this.inf = false;
  }
}
inherits(Point, Base.BasePoint);

ShortCurve.prototype.point = function point(x, y, isRed) {
  return new Point(this, x, y, isRed);
};

ShortCurve.prototype.pointFromJSON = function pointFromJSON(obj, red) {
  return Point.fromJSON(this, obj, red);
};

Point.prototype._getBeta = function _getBeta() {
  if (!this.curve.endo)
    return;

  var pre = this.precomputed;
  if (pre && pre.beta)
    return pre.beta;

  var beta = this.curve.point(this.x.redMul(this.curve.endo.beta), this.y);
  if (pre) {
    var curve = this.curve;
    var endoMul = function(p) {
      return curve.point(p.x.redMul(curve.endo.beta), p.y);
    };
    pre.beta = beta;
    beta.precomputed = {
      beta: null,
      naf: pre.naf && {
        wnd: pre.naf.wnd,
        points: pre.naf.points.map(endoMul)
      },
      doubles: pre.doubles && {
        step: pre.doubles.step,
        points: pre.doubles.points.map(endoMul)
      }
    };
  }
  return beta;
};

Point.prototype.toJSON = function toJSON() {
  if (!this.precomputed)
    return [ this.x, this.y ];

  return [ this.x, this.y, this.precomputed && {
    doubles: this.precomputed.doubles && {
      step: this.precomputed.doubles.step,
      points: this.precomputed.doubles.points.slice(1)
    },
    naf: this.precomputed.naf && {
      wnd: this.precomputed.naf.wnd,
      points: this.precomputed.naf.points.slice(1)
    }
  } ];
};

Point.fromJSON = function fromJSON(curve, obj, red) {
  if (typeof obj === 'string')
    obj = JSON.parse(obj);
  var res = curve.point(obj[0], obj[1], red);
  if (!obj[2])
    return res;

  function obj2point(obj) {
    return curve.point(obj[0], obj[1], red);
  }

  var pre = obj[2];
  res.precomputed = {
    beta: null,
    doubles: pre.doubles && {
      step: pre.doubles.step,
      points: [ res ].concat(pre.doubles.points.map(obj2point))
    },
    naf: pre.naf && {
      wnd: pre.naf.wnd,
      points: [ res ].concat(pre.naf.points.map(obj2point))
    }
  };
  return res;
};

Point.prototype.inspect = function inspect() {
  if (this.isInfinity())
    return '<EC Point Infinity>';
  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
      ' y: ' + this.y.fromRed().toString(16, 2) + '>';
};

Point.prototype.isInfinity = function isInfinity() {
  return this.inf;
};

Point.prototype.add = function add(p) {
  // O + P = P
  if (this.inf)
    return p;

  // P + O = P
  if (p.inf)
    return this;

  // P + P = 2P
  if (this.eq(p))
    return this.dbl();

  // P + (-P) = O
  if (this.neg().eq(p))
    return this.curve.point(null, null);

  // P + Q = O
  if (this.x.cmp(p.x) === 0)
    return this.curve.point(null, null);

  var c = this.y.redSub(p.y);
  if (c.cmpn(0) !== 0)
    c = c.redMul(this.x.redSub(p.x).redInvm());
  var nx = c.redSqr().redISub(this.x).redISub(p.x);
  var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);
  return this.curve.point(nx, ny);
};

Point.prototype.dbl = function dbl() {
  if (this.inf)
    return this;

  // 2P = O
  var ys1 = this.y.redAdd(this.y);
  if (ys1.cmpn(0) === 0)
    return this.curve.point(null, null);

  var a = this.curve.a;

  var x2 = this.x.redSqr();
  var dyinv = ys1.redInvm();
  var c = x2.redAdd(x2).redIAdd(x2).redIAdd(a).redMul(dyinv);

  var nx = c.redSqr().redISub(this.x.redAdd(this.x));
  var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);
  return this.curve.point(nx, ny);
};

Point.prototype.getX = function getX() {
  return this.x.fromRed();
};

Point.prototype.getY = function getY() {
  return this.y.fromRed();
};

Point.prototype.mul = function mul(k) {
  k = new bn(k, 16);

  if (this._hasDoubles(k))
    return this.curve._fixedNafMul(this, k);
  else if (this.curve.endo)
    return this.curve._endoWnafMulAdd([ this ], [ k ]);
  else
    return this.curve._wnafMul(this, k);
};

Point.prototype.mulAdd = function mulAdd(k1, p2, k2) {
  var points = [ this, p2 ];
  var coeffs = [ k1, k2 ];
  if (this.curve.endo)
    return this.curve._endoWnafMulAdd(points, coeffs);
  else
    return this.curve._wnafMulAdd(1, points, coeffs, 2);
};

Point.prototype.eq = function eq(p) {
  return this === p ||
         this.inf === p.inf &&
             (this.inf || this.x.cmp(p.x) === 0 && this.y.cmp(p.y) === 0);
};

Point.prototype.neg = function neg(_precompute) {
  if (this.inf)
    return this;

  var res = this.curve.point(this.x, this.y.redNeg());
  if (_precompute && this.precomputed) {
    var pre = this.precomputed;
    var negate = function(p) {
      return p.neg();
    };
    res.precomputed = {
      naf: pre.naf && {
        wnd: pre.naf.wnd,
        points: pre.naf.points.map(negate)
      },
      doubles: pre.doubles && {
        step: pre.doubles.step,
        points: pre.doubles.points.map(negate)
      }
    };
  }
  return res;
};

Point.prototype.toJ = function toJ() {
  if (this.inf)
    return this.curve.jpoint(null, null, null);

  var res = this.curve.jpoint(this.x, this.y, this.curve.one);
  return res;
};

function JPoint(curve, x, y, z) {
  Base.BasePoint.call(this, curve, 'jacobian');
  if (x === null && y === null && z === null) {
    this.x = this.curve.one;
    this.y = this.curve.one;
    this.z = new bn(0);
  } else {
    this.x = new bn(x, 16);
    this.y = new bn(y, 16);
    this.z = new bn(z, 16);
  }
  if (!this.x.red)
    this.x = this.x.toRed(this.curve.red);
  if (!this.y.red)
    this.y = this.y.toRed(this.curve.red);
  if (!this.z.red)
    this.z = this.z.toRed(this.curve.red);

  this.zOne = this.z === this.curve.one;
}
inherits(JPoint, Base.BasePoint);

ShortCurve.prototype.jpoint = function jpoint(x, y, z) {
  return new JPoint(this, x, y, z);
};

JPoint.prototype.toP = function toP() {
  if (this.isInfinity())
    return this.curve.point(null, null);

  var zinv = this.z.redInvm();
  var zinv2 = zinv.redSqr();
  var ax = this.x.redMul(zinv2);
  var ay = this.y.redMul(zinv2).redMul(zinv);

  return this.curve.point(ax, ay);
};

JPoint.prototype.neg = function neg() {
  return this.curve.jpoint(this.x, this.y.redNeg(), this.z);
};

JPoint.prototype.add = function add(p) {
  // O + P = P
  if (this.isInfinity())
    return p;

  // P + O = P
  if (p.isInfinity())
    return this;

  // 12M + 4S + 7A
  var pz2 = p.z.redSqr();
  var z2 = this.z.redSqr();
  var u1 = this.x.redMul(pz2);
  var u2 = p.x.redMul(z2);
  var s1 = this.y.redMul(pz2.redMul(p.z));
  var s2 = p.y.redMul(z2.redMul(this.z));

  var h = u1.redSub(u2);
  var r = s1.redSub(s2);
  if (h.cmpn(0) === 0) {
    if (r.cmpn(0) !== 0)
      return this.curve.jpoint(null, null, null);
    else
      return this.dbl();
  }

  var h2 = h.redSqr();
  var h3 = h2.redMul(h);
  var v = u1.redMul(h2);

  var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);
  var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));
  var nz = this.z.redMul(p.z).redMul(h);

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype.mixedAdd = function mixedAdd(p) {
  // O + P = P
  if (this.isInfinity())
    return p.toJ();

  // P + O = P
  if (p.isInfinity())
    return this;

  // 8M + 3S + 7A
  var z2 = this.z.redSqr();
  var u1 = this.x;
  var u2 = p.x.redMul(z2);
  var s1 = this.y;
  var s2 = p.y.redMul(z2).redMul(this.z);

  var h = u1.redSub(u2);
  var r = s1.redSub(s2);
  if (h.cmpn(0) === 0) {
    if (r.cmpn(0) !== 0)
      return this.curve.jpoint(null, null, null);
    else
      return this.dbl();
  }

  var h2 = h.redSqr();
  var h3 = h2.redMul(h);
  var v = u1.redMul(h2);

  var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);
  var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));
  var nz = this.z.redMul(h);

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype.dblp = function dblp(pow) {
  if (pow === 0)
    return this;
  if (this.isInfinity())
    return this;
  if (!pow)
    return this.dbl();

  if (this.curve.zeroA || this.curve.threeA) {
    var r = this;
    for (var i = 0; i < pow; i++)
      r = r.dbl();
    return r;
  }

  // 1M + 2S + 1A + N * (4S + 5M + 8A)
  // N = 1 => 6M + 6S + 9A
  var a = this.curve.a;
  var tinv = this.curve.tinv;

  var jx = this.x;
  var jy = this.y;
  var jz = this.z;
  var jz4 = jz.redSqr().redSqr();

  // Reuse results
  var jyd = jy.redAdd(jy);
  for (var i = 0; i < pow; i++) {
    var jx2 = jx.redSqr();
    var jyd2 = jyd.redSqr();
    var jyd4 = jyd2.redSqr();
    var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));

    var t1 = jx.redMul(jyd2);
    var nx = c.redSqr().redISub(t1.redAdd(t1));
    var t2 = t1.redISub(nx);
    var dny = c.redMul(t2);
    dny = dny.redIAdd(dny).redISub(jyd4);
    var nz = jyd.redMul(jz);
    if (i + 1 < pow)
      jz4 = jz4.redMul(jyd4);

    jx = nx;
    jz = nz;
    jyd = dny;
  }

  return this.curve.jpoint(jx, jyd.redMul(tinv), jz);
};

JPoint.prototype.dbl = function dbl() {
  if (this.isInfinity())
    return this;

  if (this.curve.zeroA)
    return this._zeroDbl();
  else if (this.curve.threeA)
    return this._threeDbl();
  else
    return this._dbl();
};

JPoint.prototype._zeroDbl = function _zeroDbl() {
  var nx;
  var ny;
  var nz;
  // Z = 1
  if (this.zOne) {
    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
    //     #doubling-mdbl-2007-bl
    // 1M + 5S + 14A

    // XX = X1^2
    var xx = this.x.redSqr();
    // YY = Y1^2
    var yy = this.y.redSqr();
    // YYYY = YY^2
    var yyyy = yy.redSqr();
    // S = 2 * ((X1 + YY)^2 - XX - YYYY)
    var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
    s = s.redIAdd(s);
    // M = 3 * XX + a; a = 0
    var m = xx.redAdd(xx).redIAdd(xx);
    // T = M ^ 2 - 2*S
    var t = m.redSqr().redISub(s).redISub(s);

    // 8 * YYYY
    var yyyy8 = yyyy.redIAdd(yyyy);
    yyyy8 = yyyy8.redIAdd(yyyy8);
    yyyy8 = yyyy8.redIAdd(yyyy8);

    // X3 = T
    nx = t;
    // Y3 = M * (S - T) - 8 * YYYY
    ny = m.redMul(s.redISub(t)).redISub(yyyy8);
    // Z3 = 2*Y1
    nz = this.y.redAdd(this.y);
  } else {
    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
    //     #doubling-dbl-2009-l
    // 2M + 5S + 13A

    // A = X1^2
    var a = this.x.redSqr();
    // B = Y1^2
    var b = this.y.redSqr();
    // C = B^2
    var c = b.redSqr();
    // D = 2 * ((X1 + B)^2 - A - C)
    var d = this.x.redAdd(b).redSqr().redISub(a).redISub(c);
    d = d.redIAdd(d);
    // E = 3 * A
    var e = a.redAdd(a).redIAdd(a);
    // F = E^2
    var f = e.redSqr();

    // 8 * C
    var c8 = c.redIAdd(c);
    c8 = c8.redIAdd(c8);
    c8 = c8.redIAdd(c8);

    // X3 = F - 2 * D
    nx = f.redISub(d).redISub(d);
    // Y3 = E * (D - X3) - 8 * C
    ny = e.redMul(d.redISub(nx)).redISub(c8);
    // Z3 = 2 * Y1 * Z1
    nz = this.y.redMul(this.z);
    nz = nz.redIAdd(nz);
  }

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype._threeDbl = function _threeDbl() {
  var nx;
  var ny;
  var nz;
  // Z = 1
  if (this.zOne) {
    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html
    //     #doubling-mdbl-2007-bl
    // 1M + 5S + 15A

    // XX = X1^2
    var xx = this.x.redSqr();
    // YY = Y1^2
    var yy = this.y.redSqr();
    // YYYY = YY^2
    var yyyy = yy.redSqr();
    // S = 2 * ((X1 + YY)^2 - XX - YYYY)
    var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
    s = s.redIAdd(s);
    // M = 3 * XX + a
    var m = xx.redAdd(xx).redIAdd(xx).redIAdd(this.curve.a);
    // T = M^2 - 2 * S
    var t = m.redSqr().redISub(s).redISub(s);
    // X3 = T
    nx = t;
    // Y3 = M * (S - T) - 8 * YYYY
    var yyyy8 = yyyy.redIAdd(yyyy);
    yyyy8 = yyyy8.redIAdd(yyyy8);
    yyyy8 = yyyy8.redIAdd(yyyy8);
    ny = m.redMul(s.redISub(t)).redISub(yyyy8);
    // Z3 = 2 * Y1
    nz = this.y.redAdd(this.y);
  } else {
    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b
    // 3M + 5S

    // delta = Z1^2
    var delta = this.z.redSqr();
    // gamma = Y1^2
    var gamma = this.y.redSqr();
    // beta = X1 * gamma
    var beta = this.x.redMul(gamma);
    // alpha = 3 * (X1 - delta) * (X1 + delta)
    var alpha = this.x.redSub(delta).redMul(this.x.redAdd(delta));
    alpha = alpha.redAdd(alpha).redIAdd(alpha);
    // X3 = alpha^2 - 8 * beta
    var beta4 = beta.redIAdd(beta);
    beta4 = beta4.redIAdd(beta4);
    var beta8 = beta4.redAdd(beta4);
    nx = alpha.redSqr().redISub(beta8);
    // Z3 = (Y1 + Z1)^2 - gamma - delta
    nz = this.y.redAdd(this.z).redSqr().redISub(gamma).redISub(delta);
    // Y3 = alpha * (4 * beta - X3) - 8 * gamma^2
    var ggamma8 = gamma.redSqr();
    ggamma8 = ggamma8.redIAdd(ggamma8);
    ggamma8 = ggamma8.redIAdd(ggamma8);
    ggamma8 = ggamma8.redIAdd(ggamma8);
    ny = alpha.redMul(beta4.redISub(nx)).redISub(ggamma8);
  }

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype._dbl = function _dbl() {
  var a = this.curve.a;

  // 4M + 6S + 10A
  var jx = this.x;
  var jy = this.y;
  var jz = this.z;
  var jz4 = jz.redSqr().redSqr();

  var jx2 = jx.redSqr();
  var jy2 = jy.redSqr();

  var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));

  var jxd4 = jx.redAdd(jx);
  jxd4 = jxd4.redIAdd(jxd4);
  var t1 = jxd4.redMul(jy2);
  var nx = c.redSqr().redISub(t1.redAdd(t1));
  var t2 = t1.redISub(nx);

  var jyd8 = jy2.redSqr();
  jyd8 = jyd8.redIAdd(jyd8);
  jyd8 = jyd8.redIAdd(jyd8);
  jyd8 = jyd8.redIAdd(jyd8);
  var ny = c.redMul(t2).redISub(jyd8);
  var nz = jy.redAdd(jy).redMul(jz);

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype.trpl = function trpl() {
  if (!this.curve.zeroA)
    return this.dbl().add(this);

  // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#tripling-tpl-2007-bl
  // 5M + 10S + ...

  // XX = X1^2
  var xx = this.x.redSqr();
  // YY = Y1^2
  var yy = this.y.redSqr();
  // ZZ = Z1^2
  var zz = this.z.redSqr();
  // YYYY = YY^2
  var yyyy = yy.redSqr();
  // M = 3 * XX + a * ZZ2; a = 0
  var m = xx.redAdd(xx).redIAdd(xx);
  // MM = M^2
  var mm = m.redSqr();
  // E = 6 * ((X1 + YY)^2 - XX - YYYY) - MM
  var e = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
  e = e.redIAdd(e);
  e = e.redAdd(e).redIAdd(e);
  e = e.redISub(mm);
  // EE = E^2
  var ee = e.redSqr();
  // T = 16*YYYY
  var t = yyyy.redIAdd(yyyy);
  t = t.redIAdd(t);
  t = t.redIAdd(t);
  t = t.redIAdd(t);
  // U = (M + E)^2 - MM - EE - T
  var u = m.redIAdd(e).redSqr().redISub(mm).redISub(ee).redISub(t);
  // X3 = 4 * (X1 * EE - 4 * YY * U)
  var yyu4 = yy.redMul(u);
  yyu4 = yyu4.redIAdd(yyu4);
  yyu4 = yyu4.redIAdd(yyu4);
  var nx = this.x.redMul(ee).redISub(yyu4);
  nx = nx.redIAdd(nx);
  nx = nx.redIAdd(nx);
  // Y3 = 8 * Y1 * (U * (T - U) - E * EE)
  var ny = this.y.redMul(u.redMul(t.redISub(u)).redISub(e.redMul(ee)));
  ny = ny.redIAdd(ny);
  ny = ny.redIAdd(ny);
  ny = ny.redIAdd(ny);
  // Z3 = (Z1 + E)^2 - ZZ - EE
  var nz = this.z.redAdd(e).redSqr().redISub(zz).redISub(ee);

  return this.curve.jpoint(nx, ny, nz);
};

JPoint.prototype.mul = function mul(k, kbase) {
  k = new bn(k, kbase);

  return this.curve._wnafMul(this, k);
};

JPoint.prototype.eq = function eq(p) {
  if (p.type === 'affine')
    return this.eq(p.toJ());

  if (this === p)
    return true;

  // x1 * z2^2 == x2 * z1^2
  var z2 = this.z.redSqr();
  var pz2 = p.z.redSqr();
  if (this.x.redMul(pz2).redISub(p.x.redMul(z2)).cmpn(0) !== 0)
    return false;

  // y1 * z2^3 == y2 * z1^3
  var z3 = z2.redMul(this.z);
  var pz3 = pz2.redMul(p.z);
  return this.y.redMul(pz3).redISub(p.y.redMul(z3)).cmpn(0) === 0;
};

JPoint.prototype.inspect = function inspect() {
  if (this.isInfinity())
    return '<EC JPoint Infinity>';
  return '<EC JPoint x: ' + this.x.toString(16, 2) +
      ' y: ' + this.y.toString(16, 2) +
      ' z: ' + this.z.toString(16, 2) + '>';
};

JPoint.prototype.isInfinity = function isInfinity() {
  // XXX This code assumes that zero is always zero in red
  return this.z.cmpn(0) === 0;
};

},{"../../elliptic":57,"../curve":60,"bn.js":55,"inherits":210}],63:[function(require,module,exports){
'use strict';

var curves = exports;

var hash = require('hash.js');
var elliptic = require('../elliptic');

var assert = elliptic.utils.assert;

function PresetCurve(options) {
  if (options.type === 'short')
    this.curve = new elliptic.curve.short(options);
  else if (options.type === 'edwards')
    this.curve = new elliptic.curve.edwards(options);
  else
    this.curve = new elliptic.curve.mont(options);
  this.g = this.curve.g;
  this.n = this.curve.n;
  this.hash = options.hash;

  assert(this.g.validate(), 'Invalid curve');
  assert(this.g.mul(this.n).isInfinity(), 'Invalid curve, G*N != O');
}
curves.PresetCurve = PresetCurve;

function defineCurve(name, options) {
  Object.defineProperty(curves, name, {
    configurable: true,
    enumerable: true,
    get: function() {
      var curve = new PresetCurve(options);
      Object.defineProperty(curves, name, {
        configurable: true,
        enumerable: true,
        value: curve
      });
      return curve;
    }
  });
}

defineCurve('p192', {
  type: 'short',
  prime: 'p192',
  p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff',
  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc',
  b: '64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1',
  n: 'ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831',
  hash: hash.sha256,
  gRed: false,
  g: [
    '188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012',
    '07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811'
  ]
});

defineCurve('p224', {
  type: 'short',
  prime: 'p224',
  p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001',
  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe',
  b: 'b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4',
  n: 'ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d',
  hash: hash.sha256,
  gRed: false,
  g: [
    'b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21',
    'bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34'
  ]
});

defineCurve('p256', {
  type: 'short',
  prime: null,
  p: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff',
  a: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc',
  b: '5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b',
  n: 'ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551',
  hash: hash.sha256,
  gRed: false,
  g: [
    '6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296',
    '4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5'
  ]
});

defineCurve('curve25519', {
  type: 'mont',
  prime: 'p25519',
  p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',
  a: '76d06',
  b: '0',
  n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
  hash: hash.sha256,
  gRed: false,
  g: [
    '9'
  ]
});

defineCurve('ed25519', {
  type: 'edwards',
  prime: 'p25519',
  p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',
  a: '-1',
  c: '1',
  // -121665 * (121666^(-1)) (mod P)
  d: '52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3',
  n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
  hash: hash.sha256,
  gRed: false,
  g: [
    '216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a',

    // 4/5
    '6666666666666666666666666666666666666666666666666666666666666658'
  ]
});

var pre;
try {
  pre = require('./precomputed/secp256k1');
} catch (e) {
  pre = undefined;
}

defineCurve('secp256k1', {
  type: 'short',
  prime: 'k256',
  p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f',
  a: '0',
  b: '7',
  n: 'ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141',
  h: '1',
  hash: hash.sha256,

  // Precomputed endomorphism
  beta: '7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee',
  lambda: '5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72',
  basis: [
    {
      a: '3086d221a7d46bcde86c90e49284eb15',
      b: '-e4437ed6010e88286f547fa90abfe4c3'
    },
    {
      a: '114ca50f7a8e2f3f657c1108d9d44cfd8',
      b: '3086d221a7d46bcde86c90e49284eb15'
    }
  ],

  gRed: false,
  g: [
    '79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798',
    '483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8',
    pre
  ]
});

},{"../elliptic":57,"./precomputed/secp256k1":68,"hash.js":71}],64:[function(require,module,exports){
'use strict';

var bn = require('bn.js');
var elliptic = require('../../elliptic');
var utils = elliptic.utils;
var assert = utils.assert;

var KeyPair = require('./key');
var Signature = require('./signature');

function EC(options) {
  if (!(this instanceof EC))
    return new EC(options);

  // Shortcut `elliptic.ec(curve-name)`
  if (typeof options === 'string') {
    assert(elliptic.curves.hasOwnProperty(options), 'Unknown curve ' + options);

    options = elliptic.curves[options];
  }

  // Shortcut for `elliptic.ec(elliptic.curves.curveName)`
  if (options instanceof elliptic.curves.PresetCurve)
    options = { curve: options };

  this.curve = options.curve.curve;
  this.n = this.curve.n;
  this.nh = this.n.shrn(1);
  this.g = this.curve.g;

  // Point on curve
  this.g = options.curve.g;
  this.g.precompute(options.curve.n.bitLength() + 1);

  // Hash for function for DRBG
  this.hash = options.hash || options.curve.hash;
}
module.exports = EC;

EC.prototype.keyPair = function keyPair(options) {
  return new KeyPair(this, options);
};

EC.prototype.keyFromPrivate = function keyFromPrivate(priv, enc) {
  return KeyPair.fromPrivate(this, priv, enc);
};

EC.prototype.keyFromPublic = function keyFromPublic(pub, enc) {
  return KeyPair.fromPublic(this, pub, enc);
};

EC.prototype.genKeyPair = function genKeyPair(options) {
  if (!options)
    options = {};

  // Instantiate Hmac_DRBG
  var drbg = new elliptic.hmacDRBG({
    hash: this.hash,
    pers: options.pers,
    entropy: options.entropy || elliptic.rand(this.hash.hmacStrength),
    nonce: this.n.toArray()
  });

  var bytes = this.n.byteLength();
  var ns2 = this.n.sub(new bn(2));
  do {
    var priv = new bn(drbg.generate(bytes));
    if (priv.cmp(ns2) > 0)
      continue;

    priv.iaddn(1);
    return this.keyFromPrivate(priv);
  } while (true);
};

EC.prototype._truncateToN = function truncateToN(msg, truncOnly) {
  var delta = msg.byteLength() * 8 - this.n.bitLength();
  if (delta > 0)
    msg = msg.shrn(delta);
  if (!truncOnly && msg.cmp(this.n) >= 0)
    return msg.sub(this.n);
  else
    return msg;
};

EC.prototype.sign = function sign(msg, key, enc, options) {
  if (typeof enc === 'object') {
    options = enc;
    enc = null;
  }
  if (!options)
    options = {};

  key = this.keyFromPrivate(key, enc);
  msg = this._truncateToN(new bn(msg, 16));

  // Zero-extend key to provide enough entropy
  var bytes = this.n.byteLength();
  var bkey = key.getPrivate().toArray();
  for (var i = bkey.length; i < 21; i++)
    bkey.unshift(0);

  // Zero-extend nonce to have the same byte size as N
  var nonce = msg.toArray();
  for (var i = nonce.length; i < bytes; i++)
    nonce.unshift(0);

  // Instantiate Hmac_DRBG
  var drbg = new elliptic.hmacDRBG({
    hash: this.hash,
    entropy: bkey,
    nonce: nonce
  });

  // Number of bytes to generate
  var ns1 = this.n.sub(new bn(1));
  do {
    var k = new bn(drbg.generate(this.n.byteLength()));
    k = this._truncateToN(k, true);
    if (k.cmpn(1) <= 0 || k.cmp(ns1) >= 0)
      continue;

    var kp = this.g.mul(k);
    if (kp.isInfinity())
      continue;

    var kpX = kp.getX();
    var r = kpX.mod(this.n);
    if (r.cmpn(0) === 0)
      continue;

    var s = k.invm(this.n).mul(r.mul(key.getPrivate()).iadd(msg)).mod(this.n);
    if (s.cmpn(0) === 0)
      continue;

    // Use complement of `s`, if it is > `n / 2`
    if (options.canonical && s.cmp(this.nh) > 0)
      s = this.n.sub(s);

    var recoveryParam = (kp.getY().isOdd() ? 1 : 0) |
                        (kpX.cmp(r) !== 0 ? 2 : 0);

    return new Signature({ r: r, s: s, recoveryParam: recoveryParam });
  } while (true);
};

EC.prototype.verify = function verify(msg, signature, key, enc) {
  msg = this._truncateToN(new bn(msg, 16));
  key = this.keyFromPublic(key, enc);
  signature = new Signature(signature, 'hex');

  // Perform primitive values validation
  var r = signature.r;
  var s = signature.s;
  if (r.cmpn(1) < 0 || r.cmp(this.n) >= 0)
    return false;
  if (s.cmpn(1) < 0 || s.cmp(this.n) >= 0)
    return false;

  // Validate signature
  var sinv = s.invm(this.n);
  var u1 = sinv.mul(msg).mod(this.n);
  var u2 = sinv.mul(r).mod(this.n);

  var p = this.g.mulAdd(u1, key.getPublic(), u2);
  if (p.isInfinity())
    return false;

  return p.getX().mod(this.n).cmp(r) === 0;
};

EC.prototype.recoverPubKey = function(msg, signature, j, enc) {
  assert((3 & j) === j, 'The recovery param is more than two bits');
  signature = new Signature(signature, enc);

  var n = this.n;
  var e = new bn(msg);
  var r = signature.r;
  var s = signature.s;

  // A set LSB signifies that the y-coordinate is odd
  var isYOdd = j & 1;
  var isSecondKey = j >> 1;
  if (r.cmp(this.curve.p.mod(this.curve.n)) >= 0 && isSecondKey)
    throw new Error('Unable to find sencond key candinate');

  // 1.1. Let x = r + jn.
  r = this.curve.pointFromX(isYOdd, r);
  var eNeg = e.neg().mod(n);

  // 1.6.1 Compute Q = r^-1 (sR -  eG)
  //               Q = r^-1 (sR + -eG)
  var rInv = signature.r.invm(n);
  return r.mul(s).add(this.g.mul(eNeg)).mul(rInv);
};

EC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) {
  signature = new Signature(signature, enc);
  if (signature.recoveryParam !== null)
    return signature.recoveryParam;

  for (var i = 0; i < 4; i++) {
    var Qprime = this.recoverPubKey(e, signature, i);

    if (Qprime.eq(Q))
      return i;
  }
  throw new Error('Unable to find valid recovery factor');
};

},{"../../elliptic":57,"./key":65,"./signature":66,"bn.js":55}],65:[function(require,module,exports){
'use strict';

var bn = require('bn.js');

var elliptic = require('../../elliptic');
var utils = elliptic.utils;

function KeyPair(ec, options) {
  this.ec = ec;
  this.priv = null;
  this.pub = null;

  // KeyPair(ec, { priv: ..., pub: ... })
  if (options.priv)
    this._importPrivate(options.priv, options.privEnc);
  if (options.pub)
    this._importPublic(options.pub, options.pubEnc);
}
module.exports = KeyPair;

KeyPair.fromPublic = function fromPublic(ec, pub, enc) {
  if (pub instanceof KeyPair)
    return pub;

  return new KeyPair(ec, {
    pub: pub,
    pubEnc: enc
  });
};

KeyPair.fromPrivate = function fromPrivate(ec, priv, enc) {
  if (priv instanceof KeyPair)
    return priv;

  return new KeyPair(ec, {
    priv: priv,
    privEnc: enc
  });
};

KeyPair.prototype.validate = function validate() {
  var pub = this.getPublic();

  if (pub.isInfinity())
    return { result: false, reason: 'Invalid public key' };
  if (!pub.validate())
    return { result: false, reason: 'Public key is not a point' };
  if (!pub.mul(this.ec.curve.n).isInfinity())
    return { result: false, reason: 'Public key * N != O' };

  return { result: true, reason: null };
};

KeyPair.prototype.getPublic = function getPublic(compact, enc) {
  if (!this.pub)
    this.pub = this.ec.g.mul(this.priv);

  // compact is optional argument
  if (typeof compact === 'string') {
    enc = compact;
    compact = null;
  }

  if (!enc)
    return this.pub;

  var len = this.ec.curve.p.byteLength();
  var x = this.pub.getX().toArray();

  for (var i = x.length; i < len; i++)
    x.unshift(0);

  var res;
  if (this.ec.curve.type !== 'mont') {
    if (compact) {
      res = [ this.pub.getY().isEven() ? 0x02 : 0x03 ].concat(x);
    } else {
      var y = this.pub.getY().toArray();
      for (var i = y.length; i < len; i++)
        y.unshift(0);
      var res = [ 0x04 ].concat(x, y);
    }
  } else {
    res = x;
  }

  return utils.encode(res, enc);
};

KeyPair.prototype.getPrivate = function getPrivate(enc) {
  if (enc === 'hex')
    return this.priv.toString(16, 2);
  else
    return this.priv;
};

KeyPair.prototype._importPrivate = function _importPrivate(key, enc) {
  this.priv = new bn(key, enc || 16);

  // Ensure that the priv won't be bigger than n, otherwise we may fail
  // in fixed multiplication method
  this.priv = this.priv.mod(this.ec.curve.n);
};

KeyPair.prototype._importPublic = function _importPublic(key, enc) {
  if (key.x || key.y) {
    this.pub = this.ec.curve.point(key.x, key.y);
    return;
  }

  key = utils.toArray(key, enc);
  if (this.ec.curve.type !== 'mont')
    return this._importPublicShort(key);
  else
    return this._importPublicMont(key);
};

KeyPair.prototype._importPublicShort = function _importPublicShort(key) {
  var len = this.ec.curve.p.byteLength();
  if (key[0] === 0x04 && key.length - 1 === 2 * len) {
    this.pub = this.ec.curve.point(
      key.slice(1, 1 + len),
      key.slice(1 + len, 1 + 2 * len));
  } else if ((key[0] === 0x02 || key[0] === 0x03) && key.length - 1 === len) {
    this.pub = this.ec.curve.pointFromX(key[0] === 0x03, key.slice(1, 1 + len));
  }
};

KeyPair.prototype._importPublicMont = function _importPublicMont(key) {
  this.pub = this.ec.curve.point(key, 1);
};

// ECDH
KeyPair.prototype.derive = function derive(pub) {
  return pub.mul(this.priv).getX();
};

// ECDSA
KeyPair.prototype.sign = function sign(msg) {
  return this.ec.sign(msg, this);
};

KeyPair.prototype.verify = function verify(msg, signature) {
  return this.ec.verify(msg, signature, this);
};

KeyPair.prototype.inspect = function inspect() {
  return '<Key priv: ' + (this.priv && this.priv.toString(16, 2)) +
         ' pub: ' + (this.pub && this.pub.inspect()) + ' >';
};

},{"../../elliptic":57,"bn.js":55}],66:[function(require,module,exports){
'use strict';

var bn = require('bn.js');

var elliptic = require('../../elliptic');
var utils = elliptic.utils;
var assert = utils.assert;

function Signature(options, enc) {
  if (options instanceof Signature)
    return options;

  if (this._importDER(options, enc))
    return;

  assert(options.r && options.s, 'Signature without r or s');
  this.r = new bn(options.r, 16);
  this.s = new bn(options.s, 16);
  if (options.recoveryParam !== null)
    this.recoveryParam = options.recoveryParam;
  else
    this.recoveryParam = null;
}
module.exports = Signature;

Signature.prototype._importDER = function _importDER(data, enc) {
  data = utils.toArray(data, enc);
  if (data.length < 6 || data[0] !== 0x30 || data[2] !== 0x02)
    return false;
  var total = data[1];
  if (1 + total > data.length)
    return false;
  var rlen = data[3];
  // Short length notation
  if (rlen >= 0x80)
    return false;
  if (4 + rlen + 2 >= data.length)
    return false;
  if (data[4 + rlen] !== 0x02)
    return false;
  var slen = data[5 + rlen];
  // Short length notation
  if (slen >= 0x80)
    return false;
  if (4 + rlen + 2 + slen > data.length)
    return false;

  this.r = new bn(data.slice(4, 4 + rlen));
  this.s = new bn(data.slice(4 + rlen + 2, 4 + rlen + 2 + slen));
  this.recoveryParam = null;

  return true;
};

Signature.prototype.toDER = function toDER(enc) {
  var r = this.r.toArray();
  var s = this.s.toArray();

  // Pad values
  if (r[0] & 0x80)
    r = [ 0 ].concat(r);
  // Pad values
  if (s[0] & 0x80)
    s = [ 0 ].concat(s);

  var total = r.length + s.length + 4;
  var res = [ 0x30, total, 0x02, r.length ];
  res = res.concat(r, [ 0x02, s.length ], s);
  return utils.encode(res, enc);
};

},{"../../elliptic":57,"bn.js":55}],67:[function(require,module,exports){
'use strict';

var hash = require('hash.js');
var elliptic = require('../elliptic');
var utils = elliptic.utils;
var assert = utils.assert;

function HmacDRBG(options) {
  if (!(this instanceof HmacDRBG))
    return new HmacDRBG(options);
  this.hash = options.hash;
  this.predResist = !!options.predResist;

  this.outLen = this.hash.outSize;
  this.minEntropy = options.minEntropy || this.hash.hmacStrength;

  this.reseed = null;
  this.reseedInterval = null;
  this.K = null;
  this.V = null;

  var entropy = utils.toArray(options.entropy, options.entropyEnc);
  var nonce = utils.toArray(options.nonce, options.nonceEnc);
  var pers = utils.toArray(options.pers, options.persEnc);
  assert(entropy.length >= (this.minEntropy / 8),
         'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');
  this._init(entropy, nonce, pers);
}
module.exports = HmacDRBG;

HmacDRBG.prototype._init = function init(entropy, nonce, pers) {
  var seed = entropy.concat(nonce).concat(pers);

  this.K = new Array(this.outLen / 8);
  this.V = new Array(this.outLen / 8);
  for (var i = 0; i < this.V.length; i++) {
    this.K[i] = 0x00;
    this.V[i] = 0x01;
  }

  this._update(seed);
  this.reseed = 1;
  this.reseedInterval = 0x1000000000000;  // 2^48
};

HmacDRBG.prototype._hmac = function hmac() {
  return new hash.hmac(this.hash, this.K);
};

HmacDRBG.prototype._update = function update(seed) {
  var kmac = this._hmac()
                 .update(this.V)
                 .update([ 0x00 ]);
  if (seed)
    kmac = kmac.update(seed);
  this.K = kmac.digest();
  this.V = this._hmac().update(this.V).digest();
  if (!seed)
    return;

  this.K = this._hmac()
               .update(this.V)
               .update([ 0x01 ])
               .update(seed)
               .digest();
  this.V = this._hmac().update(this.V).digest();
};

HmacDRBG.prototype.reseed = function reseed(entropy, entropyEnc, add, addEnc) {
  // Optional entropy enc
  if (typeof entropyEnc !== 'string') {
    addEnc = add;
    add = entropyEnc;
    entropyEnc = null;
  }

  entropy = utils.toBuffer(entropy, entropyEnc);
  add = utils.toBuffer(add, addEnc);

  assert(entropy.length >= (this.minEntropy / 8),
         'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');

  this._update(entropy.concat(add || []));
  this.reseed = 1;
};

HmacDRBG.prototype.generate = function generate(len, enc, add, addEnc) {
  if (this.reseed > this.reseedInterval)
    throw new Error('Reseed is required');

  // Optional encoding
  if (typeof enc !== 'string') {
    addEnc = add;
    add = enc;
    enc = null;
  }

  // Optional additional data
  if (add) {
    add = utils.toArray(add, addEnc);
    this._update(add);
  }

  var temp = [];
  while (temp.length < len) {
    this.V = this._hmac().update(this.V).digest();
    temp = temp.concat(this.V);
  }

  var res = temp.slice(0, len);
  this._update(add);
  this.reseed++;
  return utils.encode(res, enc);
};

},{"../elliptic":57,"hash.js":71}],68:[function(require,module,exports){
module.exports = {
  doubles: {
    step: 4,
    points: [
      [
        'e60fce93b59e9ec53011aabc21c23e97b2a31369b87a5ae9c44ee89e2a6dec0a',
        'f7e3507399e595929db99f34f57937101296891e44d23f0be1f32cce69616821'
      ],
      [
        '8282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508',
        '11f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf'
      ],
      [
        '175e159f728b865a72f99cc6c6fc846de0b93833fd2222ed73fce5b551e5b739',
        'd3506e0d9e3c79eba4ef97a51ff71f5eacb5955add24345c6efa6ffee9fed695'
      ],
      [
        '363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640',
        '4e273adfc732221953b445397f3363145b9a89008199ecb62003c7f3bee9de9'
      ],
      [
        '8b4b5f165df3c2be8c6244b5b745638843e4a781a15bcd1b69f79a55dffdf80c',
        '4aad0a6f68d308b4b3fbd7813ab0da04f9e336546162ee56b3eff0c65fd4fd36'
      ],
      [
        '723cbaa6e5db996d6bf771c00bd548c7b700dbffa6c0e77bcb6115925232fcda',
        '96e867b5595cc498a921137488824d6e2660a0653779494801dc069d9eb39f5f'
      ],
      [
        'eebfa4d493bebf98ba5feec812c2d3b50947961237a919839a533eca0e7dd7fa',
        '5d9a8ca3970ef0f269ee7edaf178089d9ae4cdc3a711f712ddfd4fdae1de8999'
      ],
      [
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      ],
      [
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        '9d7061928940405e6bb6a4176597535af292dd419e1ced79a44f18f29456a00d'
      ],
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      ],
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      ],
      [
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      [
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      [
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      [
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        'ddb84f0f4a4ddd57584f044bf260e641905326f76c64c8e6be7e5e03d4fc599d'
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      [
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      ],
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      ]
    ]
  }
};

},{}],69:[function(require,module,exports){
'use strict';

var utils = exports;

utils.assert = function assert(val, msg) {
  if (!val)
    throw new Error(msg || 'Assertion failed');
};

function toArray(msg, enc) {
  if (Array.isArray(msg))
    return msg.slice();
  if (!msg)
    return [];
  var res = [];
  if (typeof msg !== 'string') {
    for (var i = 0; i < msg.length; i++)
      res[i] = msg[i] | 0;
    return res;
  }
  if (!enc) {
    for (var i = 0; i < msg.length; i++) {
      var c = msg.charCodeAt(i);
      var hi = c >> 8;
      var lo = c & 0xff;
      if (hi)
        res.push(hi, lo);
      else
        res.push(lo);
    }
  } else if (enc === 'hex') {
    msg = msg.replace(/[^a-z0-9]+/ig, '');
    if (msg.length % 2 !== 0)
      msg = '0' + msg;
    for (var i = 0; i < msg.length; i += 2)
      res.push(parseInt(msg[i] + msg[i + 1], 16));
  }
  return res;
}
utils.toArray = toArray;

function zero2(word) {
  if (word.length === 1)
    return '0' + word;
  else
    return word;
}
utils.zero2 = zero2;

function toHex(msg) {
  var res = '';
  for (var i = 0; i < msg.length; i++)
    res += zero2(msg[i].toString(16));
  return res;
}
utils.toHex = toHex;

utils.encode = function encode(arr, enc) {
  if (enc === 'hex')
    return toHex(arr);
  else
    return arr;
};

// Represent num in a w-NAF form
function getNAF(num, w) {
  var naf = [];
  var ws = 1 << (w + 1);
  var k = num.clone();
  while (k.cmpn(1) >= 0) {
    var z;
    if (k.isOdd()) {
      var mod = k.andln(ws - 1);
      if (mod > (ws >> 1) - 1)
        z = (ws >> 1) - mod;
      else
        z = mod;
      k.isubn(z);
    } else {
      z = 0;
    }
    naf.push(z);

    // Optimization, shift by word if possible
    var shift = (k.cmpn(0) !== 0 && k.andln(ws - 1) === 0) ? (w + 1) : 1;
    for (var i = 1; i < shift; i++)
      naf.push(0);
    k.ishrn(shift);
  }

  return naf;
}
utils.getNAF = getNAF;

// Represent k1, k2 in a Joint Sparse Form
function getJSF(k1, k2) {
  var jsf = [
    [],
    []
  ];

  k1 = k1.clone();
  k2 = k2.clone();
  var d1 = 0;
  var d2 = 0;
  while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) {

    // First phase
    var m14 = (k1.andln(3) + d1) & 3;
    var m24 = (k2.andln(3) + d2) & 3;
    if (m14 === 3)
      m14 = -1;
    if (m24 === 3)
      m24 = -1;
    var u1;
    if ((m14 & 1) === 0) {
      u1 = 0;
    } else {
      var m8 = (k1.andln(7) + d1) & 7;
      if ((m8 === 3 || m8 === 5) && m24 === 2)
        u1 = -m14;
      else
        u1 = m14;
    }
    jsf[0].push(u1);

    var u2;
    if ((m24 & 1) === 0) {
      u2 = 0;
    } else {
      var m8 = (k2.andln(7) + d2) & 7;
      if ((m8 === 3 || m8 === 5) && m14 === 2)
        u2 = -m24;
      else
        u2 = m24;
    }
    jsf[1].push(u2);

    // Second phase
    if (2 * d1 === u1 + 1)
      d1 = 1 - d1;
    if (2 * d2 === u2 + 1)
      d2 = 1 - d2;
    k1.ishrn(1);
    k2.ishrn(1);
  }

  return jsf;
}
utils.getJSF = getJSF;

},{}],70:[function(require,module,exports){
var r;

module.exports = function rand(len) {
  if (!r)
    r = new Rand(null);

  return r.generate(len);
};

function Rand(rand) {
  this.rand = rand;
}
module.exports.Rand = Rand;

Rand.prototype.generate = function generate(len) {
  return this._rand(len);
};

if (typeof window === 'object') {
  if (window.crypto && window.crypto.getRandomValues) {
    // Modern browsers
    Rand.prototype._rand = function _rand(n) {
      var arr = new Uint8Array(n);
      window.crypto.getRandomValues(arr);
      return arr;
    };
  } else if (window.msCrypto && window.msCrypto.getRandomValues) {
    // IE
    Rand.prototype._rand = function _rand(n) {
      var arr = new Uint8Array(n);
      window.msCrypto.getRandomValues(arr);
      return arr;
    };
  } else {
    // Old junk
    Rand.prototype._rand = function() {
      throw new Error('Not implemented yet');
    };
  }
} else {
  // Node.js or Web worker
  try {
    var crypto = require('cry' + 'pto');

    Rand.prototype._rand = function _rand(n) {
      return crypto.randomBytes(n);
    };
  } catch (e) {
    // Emulate crypto API using randy
    Rand.prototype._rand = function _rand(n) {
      var res = new Uint8Array(n);
      for (var i = 0; i < res.length; i++)
        res[i] = this.rand.getByte();
      return res;
    };
  }
}

},{}],71:[function(require,module,exports){
var hash = exports;

hash.utils = require('./hash/utils');
hash.common = require('./hash/common');
hash.sha = require('./hash/sha');
hash.ripemd = require('./hash/ripemd');
hash.hmac = require('./hash/hmac');

// Proxy hash functions to the main object
hash.sha1 = hash.sha.sha1;
hash.sha256 = hash.sha.sha256;
hash.sha224 = hash.sha.sha224;
hash.sha384 = hash.sha.sha384;
hash.sha512 = hash.sha.sha512;
hash.ripemd160 = hash.ripemd.ripemd160;

},{"./hash/common":72,"./hash/hmac":73,"./hash/ripemd":74,"./hash/sha":75,"./hash/utils":76}],72:[function(require,module,exports){
var hash = require('../hash');
var utils = hash.utils;
var assert = utils.assert;

function BlockHash() {
  this.pending = null;
  this.pendingTotal = 0;
  this.blockSize = this.constructor.blockSize;
  this.outSize = this.constructor.outSize;
  this.hmacStrength = this.constructor.hmacStrength;
  this.padLength = this.constructor.padLength / 8;
  this.endian = 'big';

  this._delta8 = this.blockSize / 8;
  this._delta32 = this.blockSize / 32;
}
exports.BlockHash = BlockHash;

BlockHash.prototype.update = function update(msg, enc) {
  // Convert message to array, pad it, and join into 32bit blocks
  msg = utils.toArray(msg, enc);
  if (!this.pending)
    this.pending = msg;
  else
    this.pending = this.pending.concat(msg);
  this.pendingTotal += msg.length;

  // Enough data, try updating
  if (this.pending.length >= this._delta8) {
    msg = this.pending;

    // Process pending data in blocks
    var r = msg.length % this._delta8;
    this.pending = msg.slice(msg.length - r, msg.length);
    if (this.pending.length === 0)
      this.pending = null;

    msg = utils.join32(msg, 0, msg.length - r, this.endian);
    for (var i = 0; i < msg.length; i += this._delta32)
      this._update(msg, i, i + this._delta32);
  }

  return this;
};

BlockHash.prototype.digest = function digest(enc) {
  this.update(this._pad());
  assert(this.pending === null);

  return this._digest(enc);
};

BlockHash.prototype._pad = function pad() {
  var len = this.pendingTotal;
  var bytes = this._delta8;
  var k = bytes - ((len + this.padLength) % bytes);
  var res = new Array(k + this.padLength);
  res[0] = 0x80;
  for (var i = 1; i < k; i++)
    res[i] = 0;

  // Append length
  len <<= 3;
  if (this.endian === 'big') {
    for (var t = 8; t < this.padLength; t++)
      res[i++] = 0;

    res[i++] = 0;
    res[i++] = 0;
    res[i++] = 0;
    res[i++] = 0;
    res[i++] = (len >>> 24) & 0xff;
    res[i++] = (len >>> 16) & 0xff;
    res[i++] = (len >>> 8) & 0xff;
    res[i++] = len & 0xff;
  } else {
    res[i++] = len & 0xff;
    res[i++] = (len >>> 8) & 0xff;
    res[i++] = (len >>> 16) & 0xff;
    res[i++] = (len >>> 24) & 0xff;
    res[i++] = 0;
    res[i++] = 0;
    res[i++] = 0;
    res[i++] = 0;

    for (var t = 8; t < this.padLength; t++)
      res[i++] = 0;
  }

  return res;
};

},{"../hash":71}],73:[function(require,module,exports){
var hmac = exports;

var hash = require('../hash');
var utils = hash.utils;
var assert = utils.assert;

function Hmac(hash, key, enc) {
  if (!(this instanceof Hmac))
    return new Hmac(hash, key, enc);
  this.Hash = hash;
  this.blockSize = hash.blockSize / 8;
  this.outSize = hash.outSize / 8;
  this.inner = null;
  this.outer = null;

  this._init(utils.toArray(key, enc));
}
module.exports = Hmac;

Hmac.prototype._init = function init(key) {
  // Shorten key, if needed
  if (key.length > this.blockSize)
    key = new this.Hash().update(key).digest();
  assert(key.length <= this.blockSize);

  // Add padding to key
  for (var i = key.length; i < this.blockSize; i++)
    key.push(0);

  for (var i = 0; i < key.length; i++)
    key[i] ^= 0x36;
  this.inner = new this.Hash().update(key);

  // 0x36 ^ 0x5c = 0x6a
  for (var i = 0; i < key.length; i++)
    key[i] ^= 0x6a;
  this.outer = new this.Hash().update(key);
};

Hmac.prototype.update = function update(msg, enc) {
  this.inner.update(msg, enc);
  return this;
};

Hmac.prototype.digest = function digest(enc) {
  this.outer.update(this.inner.digest());
  return this.outer.digest(enc);
};

},{"../hash":71}],74:[function(require,module,exports){
var hash = require('../hash');
var utils = hash.utils;

var rotl32 = utils.rotl32;
var sum32 = utils.sum32;
var sum32_3 = utils.sum32_3;
var sum32_4 = utils.sum32_4;
var BlockHash = hash.common.BlockHash;

function RIPEMD160() {
  if (!(this instanceof RIPEMD160))
    return new RIPEMD160();

  BlockHash.call(this);

  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ];
  this.endian = 'little';
}
utils.inherits(RIPEMD160, BlockHash);
exports.ripemd160 = RIPEMD160;

RIPEMD160.blockSize = 512;
RIPEMD160.outSize = 160;
RIPEMD160.hmacStrength = 192;
RIPEMD160.padLength = 64;

RIPEMD160.prototype._update = function update(msg, start) {
  var A = this.h[0];
  var B = this.h[1];
  var C = this.h[2];
  var D = this.h[3];
  var E = this.h[4];
  var Ah = A;
  var Bh = B;
  var Ch = C;
  var Dh = D;
  var Eh = E;
  for (var j = 0; j < 80; j++) {
    var T = sum32(
      rotl32(
        sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)),
        s[j]),
      E);
    A = E;
    E = D;
    D = rotl32(C, 10);
    C = B;
    B = T;
    T = sum32(
      rotl32(
        sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)),
        sh[j]),
      Eh);
    Ah = Eh;
    Eh = Dh;
    Dh = rotl32(Ch, 10);
    Ch = Bh;
    Bh = T;
  }
  T = sum32_3(this.h[1], C, Dh);
  this.h[1] = sum32_3(this.h[2], D, Eh);
  this.h[2] = sum32_3(this.h[3], E, Ah);
  this.h[3] = sum32_3(this.h[4], A, Bh);
  this.h[4] = sum32_3(this.h[0], B, Ch);
  this.h[0] = T;
};

RIPEMD160.prototype._digest = function digest(enc) {
  if (enc === 'hex')
    return utils.toHex32(this.h, 'little');
  else
    return utils.split32(this.h, 'little');
};

function f(j, x, y, z) {
  if (j <= 15)
    return x ^ y ^ z;
  else if (j <= 31)
    return (x & y) | ((~x) & z);
  else if (j <= 47)
    return (x | (~y)) ^ z;
  else if (j <= 63)
    return (x & z) | (y & (~z));
  else
    return x ^ (y | (~z));
}

function K(j) {
  if (j <= 15)
    return 0x00000000;
  else if (j <= 31)
    return 0x5a827999;
  else if (j <= 47)
    return 0x6ed9eba1;
  else if (j <= 63)
    return 0x8f1bbcdc;
  else
    return 0xa953fd4e;
}

function Kh(j) {
  if (j <= 15)
    return 0x50a28be6;
  else if (j <= 31)
    return 0x5c4dd124;
  else if (j <= 47)
    return 0x6d703ef3;
  else if (j <= 63)
    return 0x7a6d76e9;
  else
    return 0x00000000;
}

var r = [
  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
];

var rh = [
  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
];

var s = [
  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
];

var sh = [
  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
];

},{"../hash":71}],75:[function(require,module,exports){
var hash = require('../hash');
var utils = hash.utils;
var assert = utils.assert;

var rotr32 = utils.rotr32;
var rotl32 = utils.rotl32;
var sum32 = utils.sum32;
var sum32_4 = utils.sum32_4;
var sum32_5 = utils.sum32_5;
var rotr64_hi = utils.rotr64_hi;
var rotr64_lo = utils.rotr64_lo;
var shr64_hi = utils.shr64_hi;
var shr64_lo = utils.shr64_lo;
var sum64 = utils.sum64;
var sum64_hi = utils.sum64_hi;
var sum64_lo = utils.sum64_lo;
var sum64_4_hi = utils.sum64_4_hi;
var sum64_4_lo = utils.sum64_4_lo;
var sum64_5_hi = utils.sum64_5_hi;
var sum64_5_lo = utils.sum64_5_lo;
var BlockHash = hash.common.BlockHash;

var sha256_K = [
  0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
  0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
  0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
  0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
  0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
  0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
  0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
  0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
  0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
  0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
  0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
  0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
  0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
  0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
  0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
  0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
];

var sha512_K = [
  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
];

var sha1_K = [
  0x5A827999, 0x6ED9EBA1,
  0x8F1BBCDC, 0xCA62C1D6
];

function SHA256() {
  if (!(this instanceof SHA256))
    return new SHA256();

  BlockHash.call(this);
  this.h = [ 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
             0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 ];
  this.k = sha256_K;
  this.W = new Array(64);
}
utils.inherits(SHA256, BlockHash);
exports.sha256 = SHA256;

SHA256.blockSize = 512;
SHA256.outSize = 256;
SHA256.hmacStrength = 192;
SHA256.padLength = 64;

SHA256.prototype._update = function _update(msg, start) {
  var W = this.W;

  for (var i = 0; i < 16; i++)
    W[i] = msg[start + i];
  for (; i < W.length; i++)
    W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]);

  var a = this.h[0];
  var b = this.h[1];
  var c = this.h[2];
  var d = this.h[3];
  var e = this.h[4];
  var f = this.h[5];
  var g = this.h[6];
  var h = this.h[7];

  assert(this.k.length === W.length);
  for (var i = 0; i < W.length; i++) {
    var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]);
    var T2 = sum32(s0_256(a), maj32(a, b, c));
    h = g;
    g = f;
    f = e;
    e = sum32(d, T1);
    d = c;
    c = b;
    b = a;
    a = sum32(T1, T2);
  }

  this.h[0] = sum32(this.h[0], a);
  this.h[1] = sum32(this.h[1], b);
  this.h[2] = sum32(this.h[2], c);
  this.h[3] = sum32(this.h[3], d);
  this.h[4] = sum32(this.h[4], e);
  this.h[5] = sum32(this.h[5], f);
  this.h[6] = sum32(this.h[6], g);
  this.h[7] = sum32(this.h[7], h);
};

SHA256.prototype._digest = function digest(enc) {
  if (enc === 'hex')
    return utils.toHex32(this.h, 'big');
  else
    return utils.split32(this.h, 'big');
};

function SHA224() {
  if (!(this instanceof SHA224))
    return new SHA224();

  SHA256.call(this);
  this.h = [ 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,
             0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ];
}
utils.inherits(SHA224, SHA256);
exports.sha224 = SHA224;

SHA224.blockSize = 512;
SHA224.outSize = 224;
SHA224.hmacStrength = 192;
SHA224.padLength = 64;

SHA224.prototype._digest = function digest(enc) {
  // Just truncate output
  if (enc === 'hex')
    return utils.toHex32(this.h.slice(0, 7), 'big');
  else
    return utils.split32(this.h.slice(0, 7), 'big');
};

function SHA512() {
  if (!(this instanceof SHA512))
    return new SHA512();

  BlockHash.call(this);
  this.h = [ 0x6a09e667, 0xf3bcc908,
             0xbb67ae85, 0x84caa73b,
             0x3c6ef372, 0xfe94f82b,
             0xa54ff53a, 0x5f1d36f1,
             0x510e527f, 0xade682d1,
             0x9b05688c, 0x2b3e6c1f,
             0x1f83d9ab, 0xfb41bd6b,
             0x5be0cd19, 0x137e2179 ];
  this.k = sha512_K;
  this.W = new Array(160);
}
utils.inherits(SHA512, BlockHash);
exports.sha512 = SHA512;

SHA512.blockSize = 1024;
SHA512.outSize = 512;
SHA512.hmacStrength = 192;
SHA512.padLength = 128;

SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) {
  var W = this.W;

  // 32 x 32bit words
  for (var i = 0; i < 32; i++)
    W[i] = msg[start + i];
  for (; i < W.length; i += 2) {
    var c0_hi = g1_512_hi(W[i - 4], W[i - 3]);  // i - 2
    var c0_lo = g1_512_lo(W[i - 4], W[i - 3]);
    var c1_hi = W[i - 14];  // i - 7
    var c1_lo = W[i - 13];
    var c2_hi = g0_512_hi(W[i - 30], W[i - 29]);  // i - 15
    var c2_lo = g0_512_lo(W[i - 30], W[i - 29]);
    var c3_hi = W[i - 32];  // i - 16
    var c3_lo = W[i - 31];

    W[i] = sum64_4_hi(c0_hi, c0_lo,
                      c1_hi, c1_lo,
                      c2_hi, c2_lo,
                      c3_hi, c3_lo);
    W[i + 1] = sum64_4_lo(c0_hi, c0_lo,
                          c1_hi, c1_lo,
                          c2_hi, c2_lo,
                          c3_hi, c3_lo);
  }
};

SHA512.prototype._update = function _update(msg, start) {
  this._prepareBlock(msg, start);

  var W = this.W;

  var ah = this.h[0];
  var al = this.h[1];
  var bh = this.h[2];
  var bl = this.h[3];
  var ch = this.h[4];
  var cl = this.h[5];
  var dh = this.h[6];
  var dl = this.h[7];
  var eh = this.h[8];
  var el = this.h[9];
  var fh = this.h[10];
  var fl = this.h[11];
  var gh = this.h[12];
  var gl = this.h[13];
  var hh = this.h[14];
  var hl = this.h[15];

  assert(this.k.length === W.length);
  for (var i = 0; i < W.length; i += 2) {
    var c0_hi = hh;
    var c0_lo = hl;
    var c1_hi = s1_512_hi(eh, el);
    var c1_lo = s1_512_lo(eh, el);
    var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl);
    var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl);
    var c3_hi = this.k[i];
    var c3_lo = this.k[i + 1];
    var c4_hi = W[i];
    var c4_lo = W[i + 1];

    var T1_hi = sum64_5_hi(c0_hi, c0_lo,
                           c1_hi, c1_lo,
                           c2_hi, c2_lo,
                           c3_hi, c3_lo,
                           c4_hi, c4_lo);
    var T1_lo = sum64_5_lo(c0_hi, c0_lo,
                           c1_hi, c1_lo,
                           c2_hi, c2_lo,
                           c3_hi, c3_lo,
                           c4_hi, c4_lo);

    var c0_hi = s0_512_hi(ah, al);
    var c0_lo = s0_512_lo(ah, al);
    var c1_hi = maj64_hi(ah, al, bh, bl, ch, cl);
    var c1_lo = maj64_lo(ah, al, bh, bl, ch, cl);

    var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo);
    var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo);

    hh = gh;
    hl = gl;

    gh = fh;
    gl = fl;

    fh = eh;
    fl = el;

    eh = sum64_hi(dh, dl, T1_hi, T1_lo);
    el = sum64_lo(dl, dl, T1_hi, T1_lo);

    dh = ch;
    dl = cl;

    ch = bh;
    cl = bl;

    bh = ah;
    bl = al;

    ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo);
    al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo);
  }

  sum64(this.h, 0, ah, al);
  sum64(this.h, 2, bh, bl);
  sum64(this.h, 4, ch, cl);
  sum64(this.h, 6, dh, dl);
  sum64(this.h, 8, eh, el);
  sum64(this.h, 10, fh, fl);
  sum64(this.h, 12, gh, gl);
  sum64(this.h, 14, hh, hl);
};

SHA512.prototype._digest = function digest(enc) {
  if (enc === 'hex')
    return utils.toHex32(this.h, 'big');
  else
    return utils.split32(this.h, 'big');
};

function SHA384() {
  if (!(this instanceof SHA384))
    return new SHA384();

  SHA512.call(this);
  this.h = [ 0xcbbb9d5d, 0xc1059ed8,
             0x629a292a, 0x367cd507,
             0x9159015a, 0x3070dd17,
             0x152fecd8, 0xf70e5939,
             0x67332667, 0xffc00b31,
             0x8eb44a87, 0x68581511,
             0xdb0c2e0d, 0x64f98fa7,
             0x47b5481d, 0xbefa4fa4 ];
}
utils.inherits(SHA384, SHA512);
exports.sha384 = SHA384;

SHA384.blockSize = 1024;
SHA384.outSize = 384;
SHA384.hmacStrength = 192;
SHA384.padLength = 128;

SHA384.prototype._digest = function digest(enc) {
  if (enc === 'hex')
    return utils.toHex32(this.h.slice(0, 12), 'big');
  else
    return utils.split32(this.h.slice(0, 12), 'big');
};

function SHA1() {
  if (!(this instanceof SHA1))
    return new SHA1();

  BlockHash.call(this);
  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe,
             0x10325476, 0xc3d2e1f0 ];
  this.W = new Array(80);
}

utils.inherits(SHA1, BlockHash);
exports.sha1 = SHA1;

SHA1.blockSize = 512;
SHA1.outSize = 160;
SHA1.hmacStrength = 80;
SHA1.padLength = 64;

SHA1.prototype._update = function _update(msg, start) {
  var W = this.W;

  for (var i = 0; i < 16; i++)
    W[i] = msg[start + i];

  for(; i < W.length; i++)
    W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);

  var a = this.h[0];
  var b = this.h[1];
  var c = this.h[2];
  var d = this.h[3];
  var e = this.h[4];

  for (var i = 0; i < W.length; i++) {
    var s = ~~(i / 20);
    var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]);
    e = d;
    d = c;
    c = rotl32(b, 30);
    b = a;
    a = t;
  }

  this.h[0] = sum32(this.h[0], a);
  this.h[1] = sum32(this.h[1], b);
  this.h[2] = sum32(this.h[2], c);
  this.h[3] = sum32(this.h[3], d);
  this.h[4] = sum32(this.h[4], e);
};

SHA1.prototype._digest = function digest(enc) {
  if (enc === 'hex')
    return utils.toHex32(this.h, 'big');
  else
    return utils.split32(this.h, 'big');
};

function ch32(x, y, z) {
  return (x & y) ^ ((~x) & z);
}

function maj32(x, y, z) {
  return (x & y) ^ (x & z) ^ (y & z);
}

function p32(x, y, z) {
  return x ^ y ^ z;
}

function s0_256(x) {
  return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22);
}

function s1_256(x) {
  return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25);
}

function g0_256(x) {
  return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3);
}

function g1_256(x) {
  return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10);
}

function ft_1(s, x, y, z) {
  if (s === 0)
    return ch32(x, y, z);
  if (s === 1 || s === 3)
    return p32(x, y, z);
  if (s === 2)
    return maj32(x, y, z);
}

function ch64_hi(xh, xl, yh, yl, zh, zl) {
  var r = (xh & yh) ^ ((~xh) & zh);
  if (r < 0)
    r += 0x100000000;
  return r;
}

function ch64_lo(xh, xl, yh, yl, zh, zl) {
  var r = (xl & yl) ^ ((~xl) & zl);
  if (r < 0)
    r += 0x100000000;
  return r;
}

function maj64_hi(xh, xl, yh, yl, zh, zl) {
  var r = (xh & yh) ^ (xh & zh) ^ (yh & zh);
  if (r < 0)
    r += 0x100000000;
  return r;
}

function maj64_lo(xh, xl, yh, yl, zh, zl) {
  var r = (xl & yl) ^ (xl & zl) ^ (yl & zl);
  if (r < 0)
    r += 0x100000000;
  return r;
}

function s0_512_hi(xh, xl) {
  var c0_hi = rotr64_hi(xh, xl, 28);
  var c1_hi = rotr64_hi(xl, xh, 2);  // 34
  var c2_hi = rotr64_hi(xl, xh, 7);  // 39

  var r = c0_hi ^ c1_hi ^ c2_hi;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function s0_512_lo(xh, xl) {
  var c0_lo = rotr64_lo(xh, xl, 28);
  var c1_lo = rotr64_lo(xl, xh, 2);  // 34
  var c2_lo = rotr64_lo(xl, xh, 7);  // 39

  var r = c0_lo ^ c1_lo ^ c2_lo;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function s1_512_hi(xh, xl) {
  var c0_hi = rotr64_hi(xh, xl, 14);
  var c1_hi = rotr64_hi(xh, xl, 18);
  var c2_hi = rotr64_hi(xl, xh, 9);  // 41

  var r = c0_hi ^ c1_hi ^ c2_hi;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function s1_512_lo(xh, xl) {
  var c0_lo = rotr64_lo(xh, xl, 14);
  var c1_lo = rotr64_lo(xh, xl, 18);
  var c2_lo = rotr64_lo(xl, xh, 9);  // 41

  var r = c0_lo ^ c1_lo ^ c2_lo;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function g0_512_hi(xh, xl) {
  var c0_hi = rotr64_hi(xh, xl, 1);
  var c1_hi = rotr64_hi(xh, xl, 8);
  var c2_hi = shr64_hi(xh, xl, 7);

  var r = c0_hi ^ c1_hi ^ c2_hi;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function g0_512_lo(xh, xl) {
  var c0_lo = rotr64_lo(xh, xl, 1);
  var c1_lo = rotr64_lo(xh, xl, 8);
  var c2_lo = shr64_lo(xh, xl, 7);

  var r = c0_lo ^ c1_lo ^ c2_lo;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function g1_512_hi(xh, xl) {
  var c0_hi = rotr64_hi(xh, xl, 19);
  var c1_hi = rotr64_hi(xl, xh, 29);  // 61
  var c2_hi = shr64_hi(xh, xl, 6);

  var r = c0_hi ^ c1_hi ^ c2_hi;
  if (r < 0)
    r += 0x100000000;
  return r;
}

function g1_512_lo(xh, xl) {
  var c0_lo = rotr64_lo(xh, xl, 19);
  var c1_lo = rotr64_lo(xl, xh, 29);  // 61
  var c2_lo = shr64_lo(xh, xl, 6);

  var r = c0_lo ^ c1_lo ^ c2_lo;
  if (r < 0)
    r += 0x100000000;
  return r;
}

},{"../hash":71}],76:[function(require,module,exports){
var utils = exports;
var inherits = require('inherits');

function toArray(msg, enc) {
  if (Array.isArray(msg))
    return msg.slice();
  if (!msg)
    return [];
  var res = [];
  if (typeof msg === 'string') {
    if (!enc) {
      for (var i = 0; i < msg.length; i++) {
        var c = msg.charCodeAt(i);
        var hi = c >> 8;
        var lo = c & 0xff;
        if (hi)
          res.push(hi, lo);
        else
          res.push(lo);
      }
    } else if (enc === 'hex') {
      msg = msg.replace(/[^a-z0-9]+/ig, '');
      if (msg.length % 2 !== 0)
        msg = '0' + msg;
      for (var i = 0; i < msg.length; i += 2)
        res.push(parseInt(msg[i] + msg[i + 1], 16));
    }
  } else {
    for (var i = 0; i < msg.length; i++)
      res[i] = msg[i] | 0;
  }
  return res;
}
utils.toArray = toArray;

function toHex(msg) {
  var res = '';
  for (var i = 0; i < msg.length; i++)
    res += zero2(msg[i].toString(16));
  return res;
}
utils.toHex = toHex;

function htonl(w) {
  var res = (w >>> 24) |
            ((w >>> 8) & 0xff00) |
            ((w << 8) & 0xff0000) |
            ((w & 0xff) << 24);
  return res >>> 0;
}
utils.htonl = htonl;

function toHex32(msg, endian) {
  var res = '';
  for (var i = 0; i < msg.length; i++) {
    var w = msg[i];
    if (endian === 'little')
      w = htonl(w);
    res += zero8(w.toString(16));
  }
  return res;
}
utils.toHex32 = toHex32;

function zero2(word) {
  if (word.length === 1)
    return '0' + word;
  else
    return word;
}
utils.zero2 = zero2;

function zero8(word) {
  if (word.length === 7)
    return '0' + word;
  else if (word.length === 6)
    return '00' + word;
  else if (word.length === 5)
    return '000' + word;
  else if (word.length === 4)
    return '0000' + word;
  else if (word.length === 3)
    return '00000' + word;
  else if (word.length === 2)
    return '000000' + word;
  else if (word.length === 1)
    return '0000000' + word;
  else
    return word;
}
utils.zero8 = zero8;

function join32(msg, start, end, endian) {
  var len = end - start;
  assert(len % 4 === 0);
  var res = new Array(len / 4);
  for (var i = 0, k = start; i < res.length; i++, k += 4) {
    var w;
    if (endian === 'big')
      w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3];
    else
      w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k];
    res[i] = w >>> 0;
  }
  return res;
}
utils.join32 = join32;

function split32(msg, endian) {
  var res = new Array(msg.length * 4);
  for (var i = 0, k = 0; i < msg.length; i++, k += 4) {
    var m = msg[i];
    if (endian === 'big') {
      res[k] = m >>> 24;
      res[k + 1] = (m >>> 16) & 0xff;
      res[k + 2] = (m >>> 8) & 0xff;
      res[k + 3] = m & 0xff;
    } else {
      res[k + 3] = m >>> 24;
      res[k + 2] = (m >>> 16) & 0xff;
      res[k + 1] = (m >>> 8) & 0xff;
      res[k] = m & 0xff;
    }
  }
  return res;
}
utils.split32 = split32;

function rotr32(w, b) {
  return (w >>> b) | (w << (32 - b));
}
utils.rotr32 = rotr32;

function rotl32(w, b) {
  return (w << b) | (w >>> (32 - b));
}
utils.rotl32 = rotl32;

function sum32(a, b) {
  return (a + b) >>> 0;
}
utils.sum32 = sum32;

function sum32_3(a, b, c) {
  return (a + b + c) >>> 0;
}
utils.sum32_3 = sum32_3;

function sum32_4(a, b, c, d) {
  return (a + b + c + d) >>> 0;
}
utils.sum32_4 = sum32_4;

function sum32_5(a, b, c, d, e) {
  return (a + b + c + d + e) >>> 0;
}
utils.sum32_5 = sum32_5;

function assert(cond, msg) {
  if (!cond)
    throw new Error(msg || 'Assertion failed');
}
utils.assert = assert;

utils.inherits = inherits;

function sum64(buf, pos, ah, al) {
  var bh = buf[pos];
  var bl = buf[pos + 1];

  var lo = (al + bl) >>> 0;
  var hi = (lo < al ? 1 : 0) + ah + bh;
  buf[pos] = hi >>> 0;
  buf[pos + 1] = lo;
}
exports.sum64 = sum64;

function sum64_hi(ah, al, bh, bl) {
  var lo = (al + bl) >>> 0;
  var hi = (lo < al ? 1 : 0) + ah + bh;
  return hi >>> 0;
};
exports.sum64_hi = sum64_hi;

function sum64_lo(ah, al, bh, bl) {
  var lo = al + bl;
  return lo >>> 0;
};
exports.sum64_lo = sum64_lo;

function sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) {
  var carry = 0;
  var lo = al;
  lo = (lo + bl) >>> 0;
  carry += lo < al ? 1 : 0;
  lo = (lo + cl) >>> 0;
  carry += lo < cl ? 1 : 0;
  lo = (lo + dl) >>> 0;
  carry += lo < dl ? 1 : 0;

  var hi = ah + bh + ch + dh + carry;
  return hi >>> 0;
};
exports.sum64_4_hi = sum64_4_hi;

function sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) {
  var lo = al + bl + cl + dl;
  return lo >>> 0;
};
exports.sum64_4_lo = sum64_4_lo;

function sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
  var carry = 0;
  var lo = al;
  lo = (lo + bl) >>> 0;
  carry += lo < al ? 1 : 0;
  lo = (lo + cl) >>> 0;
  carry += lo < cl ? 1 : 0;
  lo = (lo + dl) >>> 0;
  carry += lo < dl ? 1 : 0;
  lo = (lo + el) >>> 0;
  carry += lo < el ? 1 : 0;

  var hi = ah + bh + ch + dh + eh + carry;
  return hi >>> 0;
};
exports.sum64_5_hi = sum64_5_hi;

function sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
  var lo = al + bl + cl + dl + el;

  return lo >>> 0;
};
exports.sum64_5_lo = sum64_5_lo;

function rotr64_hi(ah, al, num) {
  var r = (al << (32 - num)) | (ah >>> num);
  return r >>> 0;
};
exports.rotr64_hi = rotr64_hi;

function rotr64_lo(ah, al, num) {
  var r = (ah << (32 - num)) | (al >>> num);
  return r >>> 0;
};
exports.rotr64_lo = rotr64_lo;

function shr64_hi(ah, al, num) {
  return ah >>> num;
};
exports.shr64_hi = shr64_hi;

function shr64_lo(ah, al, num) {
  var r = (ah << (32 - num)) | (al >>> num);
  return r >>> 0;
};
exports.shr64_lo = shr64_lo;

},{"inherits":210}],77:[function(require,module,exports){
module.exports={
  "name": "elliptic",
  "version": "3.1.0",
  "description": "EC cryptography",
  "main": "lib/elliptic.js",
  "scripts": {
    "test": "make lint && mocha --reporter=spec test/*-test.js"
  },
  "repository": {
    "type": "git",
    "url": "git+ssh://git@github.com/indutny/elliptic.git"
  },
  "keywords": [
    "EC",
    "Elliptic",
    "curve",
    "Cryptography"
  ],
  "author": {
    "name": "Fedor Indutny",
    "email": "fedor@indutny.com"
  },
  "license": "MIT",
  "bugs": {
    "url": "https://github.com/indutny/elliptic/issues"
  },
  "homepage": "https://github.com/indutny/elliptic",
  "devDependencies": {
    "browserify": "^3.44.2",
    "jscs": "^1.11.3",
    "jshint": "^2.6.0",
    "mocha": "^2.1.0",
    "uglify-js": "^2.4.13"
  },
  "dependencies": {
    "bn.js": "^2.0.3",
    "brorand": "^1.0.1",
    "hash.js": "^1.0.0",
    "inherits": "^2.0.1"
  },
  "gitHead": "d86cd2a8178f7e7cecbd6dd92eea084e2ab44c13",
  "_id": "elliptic@3.1.0",
  "_shasum": "c21682ef762769b56a74201609105da11d5f60cc",
  "_from": "elliptic@>=3.0.0 <4.0.0",
  "_npmVersion": "2.11.0",
  "_nodeVersion": "2.2.1",
  "_npmUser": {
    "name": "indutny",
    "email": "fedor@indutny.com"
  },
  "maintainers": [
    {
      "name": "indutny",
      "email": "fedor@indutny.com"
    }
  ],
  "dist": {
    "shasum": "c21682ef762769b56a74201609105da11d5f60cc",
    "tarball": "http://registry.npmjs.org/elliptic/-/elliptic-3.1.0.tgz"
  },
  "directories": {},
  "_resolved": "https://registry.npmjs.org/elliptic/-/elliptic-3.1.0.tgz",
  "readme": "ERROR: No README data found!"
}

},{}],78:[function(require,module,exports){
module.exports={"2.16.840.1.101.3.4.1.1": "aes-128-ecb",
"2.16.840.1.101.3.4.1.2": "aes-128-cbc",
"2.16.840.1.101.3.4.1.3": "aes-128-ofb",
"2.16.840.1.101.3.4.1.4": "aes-128-cfb",
"2.16.840.1.101.3.4.1.21": "aes-192-ecb",
"2.16.840.1.101.3.4.1.22": "aes-192-cbc",
"2.16.840.1.101.3.4.1.23": "aes-192-ofb",
"2.16.840.1.101.3.4.1.24": "aes-192-cfb",
"2.16.840.1.101.3.4.1.41": "aes-256-ecb",
"2.16.840.1.101.3.4.1.42": "aes-256-cbc",
"2.16.840.1.101.3.4.1.43": "aes-256-ofb",
"2.16.840.1.101.3.4.1.44": "aes-256-cfb"
}
},{}],79:[function(require,module,exports){
// from https://github.com/indutny/self-signed/blob/gh-pages/lib/asn1.js
// Fedor, you are amazing.

var asn1 = require('asn1.js')

var RSAPrivateKey = asn1.define('RSAPrivateKey', function () {
  this.seq().obj(
    this.key('version').int(),
    this.key('modulus').int(),
    this.key('publicExponent').int(),
    this.key('privateExponent').int(),
    this.key('prime1').int(),
    this.key('prime2').int(),
    this.key('exponent1').int(),
    this.key('exponent2').int(),
    this.key('coefficient').int()
  )
})
exports.RSAPrivateKey = RSAPrivateKey

var RSAPublicKey = asn1.define('RSAPublicKey', function () {
  this.seq().obj(
    this.key('modulus').int(),
    this.key('publicExponent').int()
  )
})
exports.RSAPublicKey = RSAPublicKey

var PublicKey = asn1.define('SubjectPublicKeyInfo', function () {
  this.seq().obj(
    this.key('algorithm').use(AlgorithmIdentifier),
    this.key('subjectPublicKey').bitstr()
  )
})
exports.PublicKey = PublicKey

var AlgorithmIdentifier = asn1.define('AlgorithmIdentifier', function () {
  this.seq().obj(
    this.key('algorithm').objid(),
    this.key('none').null_().optional(),
    this.key('curve').objid().optional(),
    this.key('params').seq().obj(
      this.key('p').int(),
      this.key('q').int(),
      this.key('g').int()
    ).optional()
  )
})

var PrivateKeyInfo = asn1.define('PrivateKeyInfo', function () {
  this.seq().obj(
    this.key('version').int(),
    this.key('algorithm').use(AlgorithmIdentifier),
    this.key('subjectPrivateKey').octstr()
  )
})
exports.PrivateKey = PrivateKeyInfo
var EncryptedPrivateKeyInfo = asn1.define('EncryptedPrivateKeyInfo', function () {
  this.seq().obj(
    this.key('algorithm').seq().obj(
      this.key('id').objid(),
      this.key('decrypt').seq().obj(
        this.key('kde').seq().obj(
          this.key('id').objid(),
          this.key('kdeparams').seq().obj(
            this.key('salt').octstr(),
            this.key('iters').int()
          )
        ),
        this.key('cipher').seq().obj(
          this.key('algo').objid(),
          this.key('iv').octstr()
        )
      )
    ),
    this.key('subjectPrivateKey').octstr()
  )
})

exports.EncryptedPrivateKey = EncryptedPrivateKeyInfo

var DSAPrivateKey = asn1.define('DSAPrivateKey', function () {
  this.seq().obj(
    this.key('version').int(),
    this.key('p').int(),
    this.key('q').int(),
    this.key('g').int(),
    this.key('pub_key').int(),
    this.key('priv_key').int()
  )
})
exports.DSAPrivateKey = DSAPrivateKey

exports.DSAparam = asn1.define('DSAparam', function () {
  this.int()
})
var ECPrivateKey = asn1.define('ECPrivateKey', function () {
  this.seq().obj(
    this.key('version').int(),
    this.key('privateKey').octstr(),
    this.key('parameters').optional().explicit(0).use(ECParameters),
    this.key('publicKey').optional().explicit(1).bitstr()
  )
})
exports.ECPrivateKey = ECPrivateKey
var ECParameters = asn1.define('ECParameters', function () {
  this.choice({
    namedCurve: this.objid()
  })
})

exports.signature = asn1.define('signature', function () {
  this.seq().obj(
    this.key('r').int(),
    this.key('s').int()
  )
})

},{"asn1.js":82}],80:[function(require,module,exports){
(function (Buffer){
// adapted from https://github.com/apatil/pemstrip
var findProc = /Proc-Type: 4,ENCRYPTED\r?\nDEK-Info: AES-((?:128)|(?:192)|(?:256))-CBC,([0-9A-H]+)\r?\n\r?\n([0-9A-z\n\r\+\/\=]+)\r?\n/m
var startRegex = /^-----BEGIN (.*) KEY-----\r?\n/m
var fullRegex = /^-----BEGIN (.*) KEY-----\r?\n([0-9A-z\n\r\+\/\=]+)\r?\n-----END \1 KEY-----$/m
var evp = require('evp_bytestokey')
var ciphers = require('browserify-aes')
module.exports = function (okey, password) {
  var key = okey.toString()
  var match = key.match(findProc)
  var decrypted
  if (!match) {
    var match2 = key.match(fullRegex)
    decrypted = new Buffer(match2[2].replace(/\r?\n/g, ''), 'base64')
  } else {
    var suite = 'aes' + match[1]
    var iv = new Buffer(match[2], 'hex')
    var cipherText = new Buffer(match[3].replace(/\r?\n/g, ''), 'base64')
    var cipherKey = evp(password, iv.slice(0, 8), parseInt(match[1], 10)).key
    var out = []
    var cipher = ciphers.createDecipheriv(suite, cipherKey, iv)
    out.push(cipher.update(cipherText))
    out.push(cipher.final())
    decrypted = Buffer.concat(out)
  }
  var tag = key.match(startRegex)[1] + ' KEY'
  return {
    tag: tag,
    data: decrypted
  }
}

}).call(this,require("buffer").Buffer)
},{"browserify-aes":99,"buffer":18,"evp_bytestokey":114}],81:[function(require,module,exports){
(function (Buffer){
var asn1 = require('./asn1')
var aesid = require('./aesid.json')
var fixProc = require('./fixProc')
var ciphers = require('browserify-aes')
var compat = require('pbkdf2')
module.exports = parseKeys

function parseKeys (buffer) {
  var password
  if (typeof buffer === 'object' && !Buffer.isBuffer(buffer)) {
    password = buffer.passphrase
    buffer = buffer.key
  }
  if (typeof buffer === 'string') {
    buffer = new Buffer(buffer)
  }

  var stripped = fixProc(buffer, password)

  var type = stripped.tag
  var data = stripped.data
  var subtype, ndata
  switch (type) {
    case 'PUBLIC KEY':
      ndata = asn1.PublicKey.decode(data, 'der')
      subtype = ndata.algorithm.algorithm.join('.')
      switch (subtype) {
        case '1.2.840.113549.1.1.1':
          return asn1.RSAPublicKey.decode(ndata.subjectPublicKey.data, 'der')
        case '1.2.840.10045.2.1':
          ndata.subjectPrivateKey = ndata.subjectPublicKey
          return {
            type: 'ec',
            data: ndata
          }
        case '1.2.840.10040.4.1':
          ndata.algorithm.params.pub_key = asn1.DSAparam.decode(ndata.subjectPublicKey.data, 'der')
          return {
            type: 'dsa',
            data: ndata.algorithm.params
          }
        default: throw new Error('unknown key id ' + subtype)
      }
      throw new Error('unknown key type ' + type)
    case 'ENCRYPTED PRIVATE KEY':
      data = asn1.EncryptedPrivateKey.decode(data, 'der')
      data = decrypt(data, password)
      // falls through
    case 'PRIVATE KEY':
      ndata = asn1.PrivateKey.decode(data, 'der')
      subtype = ndata.algorithm.algorithm.join('.')
      switch (subtype) {
        case '1.2.840.113549.1.1.1':
          return asn1.RSAPrivateKey.decode(ndata.subjectPrivateKey, 'der')
        case '1.2.840.10045.2.1':
          return {
            curve: ndata.algorithm.curve,
            privateKey: asn1.ECPrivateKey.decode(ndata.subjectPrivateKey, 'der').privateKey
          }
        case '1.2.840.10040.4.1':
          ndata.algorithm.params.priv_key = asn1.DSAparam.decode(ndata.subjectPrivateKey, 'der')
          return {
            type: 'dsa',
            params: ndata.algorithm.params
          }
        default: throw new Error('unknown key id ' + subtype)
      }
      throw new Error('unknown key type ' + type)
    case 'RSA PUBLIC KEY':
      return asn1.RSAPublicKey.decode(data, 'der')
    case 'RSA PRIVATE KEY':
      return asn1.RSAPrivateKey.decode(data, 'der')
    case 'DSA PRIVATE KEY':
      return {
        type: 'dsa',
        params: asn1.DSAPrivateKey.decode(data, 'der')
      }
    case 'EC PRIVATE KEY':
      data = asn1.ECPrivateKey.decode(data, 'der')
      return {
        curve: data.parameters.value,
        privateKey: data.privateKey
      }
    default: throw new Error('unknown key type ' + type)
  }
}
parseKeys.signature = asn1.signature
function decrypt (data, password) {
  var salt = data.algorithm.decrypt.kde.kdeparams.salt
  var iters = parseInt(data.algorithm.decrypt.kde.kdeparams.iters.toString(), 10)
  var algo = aesid[data.algorithm.decrypt.cipher.algo.join('.')]
  var iv = data.algorithm.decrypt.cipher.iv
  var cipherText = data.subjectPrivateKey
  var keylen = parseInt(algo.split('-')[1], 10) / 8
  var key = compat.pbkdf2Sync(password, salt, iters, keylen)
  var cipher = ciphers.createDecipheriv(algo, key, iv)
  var out = []
  out.push(cipher.update(cipherText))
  out.push(cipher.final())
  return Buffer.concat(out)
}

}).call(this,require("buffer").Buffer)
},{"./aesid.json":78,"./asn1":79,"./fixProc":80,"browserify-aes":99,"buffer":18,"pbkdf2":161}],82:[function(require,module,exports){
var asn1 = exports;

asn1.bignum = require('bn.js');

asn1.define = require('./asn1/api').define;
asn1.base = require('./asn1/base');
asn1.constants = require('./asn1/constants');
asn1.decoders = require('./asn1/decoders');
asn1.encoders = require('./asn1/encoders');

},{"./asn1/api":83,"./asn1/base":85,"./asn1/constants":89,"./asn1/decoders":91,"./asn1/encoders":94,"bn.js":55}],83:[function(require,module,exports){
var asn1 = require('../asn1');
var inherits = require('inherits');

var api = exports;

api.define = function define(name, body) {
  return new Entity(name, body);
};

function Entity(name, body) {
  this.name = name;
  this.body = body;

  this.decoders = {};
  this.encoders = {};
};

Entity.prototype._createNamed = function createNamed(base) {
  var named;
  try {
    named = require('vm').runInThisContext(
      '(function ' + this.name + '(entity) {\n' +
      '  this._initNamed(entity);\n' +
      '})'
    );
  } catch (e) {
    named = function (entity) {
      this._initNamed(entity);
    };
  }
  inherits(named, base);
  named.prototype._initNamed = function initnamed(entity) {
    base.call(this, entity);
  };

  return new named(this);
};

Entity.prototype._getDecoder = function _getDecoder(enc) {
  // Lazily create decoder
  if (!this.decoders.hasOwnProperty(enc))
    this.decoders[enc] = this._createNamed(asn1.decoders[enc]);
  return this.decoders[enc];
};

Entity.prototype.decode = function decode(data, enc, options) {
  return this._getDecoder(enc).decode(data, options);
};

Entity.prototype._getEncoder = function _getEncoder(enc) {
  // Lazily create encoder
  if (!this.encoders.hasOwnProperty(enc))
    this.encoders[enc] = this._createNamed(asn1.encoders[enc]);
  return this.encoders[enc];
};

Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) {
  return this._getEncoder(enc).encode(data, reporter);
};

},{"../asn1":82,"inherits":210,"vm":248}],84:[function(require,module,exports){
var inherits = require('inherits');
var Reporter = require('../base').Reporter;
var Buffer = require('buffer').Buffer;

function DecoderBuffer(base, options) {
  Reporter.call(this, options);
  if (!Buffer.isBuffer(base)) {
    this.error('Input not Buffer');
    return;
  }

  this.base = base;
  this.offset = 0;
  this.length = base.length;
}
inherits(DecoderBuffer, Reporter);
exports.DecoderBuffer = DecoderBuffer;

DecoderBuffer.prototype.save = function save() {
  return { offset: this.offset, reporter: Reporter.prototype.save.call(this) };
};

DecoderBuffer.prototype.restore = function restore(save) {
  // Return skipped data
  var res = new DecoderBuffer(this.base);
  res.offset = save.offset;
  res.length = this.offset;

  this.offset = save.offset;
  Reporter.prototype.restore.call(this, save.reporter);

  return res;
};

DecoderBuffer.prototype.isEmpty = function isEmpty() {
  return this.offset === this.length;
};

DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) {
  if (this.offset + 1 <= this.length)
    return this.base.readUInt8(this.offset++, true);
  else
    return this.error(fail || 'DecoderBuffer overrun');
}

DecoderBuffer.prototype.skip = function skip(bytes, fail) {
  if (!(this.offset + bytes <= this.length))
    return this.error(fail || 'DecoderBuffer overrun');

  var res = new DecoderBuffer(this.base);

  // Share reporter state
  res._reporterState = this._reporterState;

  res.offset = this.offset;
  res.length = this.offset + bytes;
  this.offset += bytes;
  return res;
}

DecoderBuffer.prototype.raw = function raw(save) {
  return this.base.slice(save ? save.offset : this.offset, this.length);
}

function EncoderBuffer(value, reporter) {
  if (Array.isArray(value)) {
    this.length = 0;
    this.value = value.map(function(item) {
      if (!(item instanceof EncoderBuffer))
        item = new EncoderBuffer(item, reporter);
      this.length += item.length;
      return item;
    }, this);
  } else if (typeof value === 'number') {
    if (!(0 <= value && value <= 0xff))
      return reporter.error('non-byte EncoderBuffer value');
    this.value = value;
    this.length = 1;
  } else if (typeof value === 'string') {
    this.value = value;
    this.length = Buffer.byteLength(value);
  } else if (Buffer.isBuffer(value)) {
    this.value = value;
    this.length = value.length;
  } else {
    return reporter.error('Unsupported type: ' + typeof value);
  }
}
exports.EncoderBuffer = EncoderBuffer;

EncoderBuffer.prototype.join = function join(out, offset) {
  if (!out)
    out = new Buffer(this.length);
  if (!offset)
    offset = 0;

  if (this.length === 0)
    return out;

  if (Array.isArray(this.value)) {
    this.value.forEach(function(item) {
      item.join(out, offset);
      offset += item.length;
    });
  } else {
    if (typeof this.value === 'number')
      out[offset] = this.value;
    else if (typeof this.value === 'string')
      out.write(this.value, offset);
    else if (Buffer.isBuffer(this.value))
      this.value.copy(out, offset);
    offset += this.length;
  }

  return out;
};

},{"../base":85,"buffer":18,"inherits":210}],85:[function(require,module,exports){
var base = exports;

base.Reporter = require('./reporter').Reporter;
base.DecoderBuffer = require('./buffer').DecoderBuffer;
base.EncoderBuffer = require('./buffer').EncoderBuffer;
base.Node = require('./node');

},{"./buffer":84,"./node":86,"./reporter":87}],86:[function(require,module,exports){
var Reporter = require('../base').Reporter;
var EncoderBuffer = require('../base').EncoderBuffer;
var assert = require('minimalistic-assert');

// Supported tags
var tags = [
  'seq', 'seqof', 'set', 'setof', 'octstr', 'bitstr', 'objid', 'bool',
  'gentime', 'utctime', 'null_', 'enum', 'int', 'ia5str', 'utf8str'
];

// Public methods list
var methods = [
  'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice',
  'any'
].concat(tags);

// Overrided methods list
var overrided = [
  '_peekTag', '_decodeTag', '_use',
  '_decodeStr', '_decodeObjid', '_decodeTime',
  '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList',

  '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime',
  '_encodeNull', '_encodeInt', '_encodeBool'
];

function Node(enc, parent) {
  var state = {};
  this._baseState = state;

  state.enc = enc;

  state.parent = parent || null;
  state.children = null;

  // State
  state.tag = null;
  state.args = null;
  state.reverseArgs = null;
  state.choice = null;
  state.optional = false;
  state.any = false;
  state.obj = false;
  state.use = null;
  state.useDecoder = null;
  state.key = null;
  state['default'] = null;
  state.explicit = null;
  state.implicit = null;

  // Should create new instance on each method
  if (!state.parent) {
    state.children = [];
    this._wrap();
  }
}
module.exports = Node;

var stateProps = [
  'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice',
  'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit',
  'implicit'
];

Node.prototype.clone = function clone() {
  var state = this._baseState;
  var cstate = {};
  stateProps.forEach(function(prop) {
    cstate[prop] = state[prop];
  });
  var res = new this.constructor(cstate.parent);
  res._baseState = cstate;
  return res;
};

Node.prototype._wrap = function wrap() {
  var state = this._baseState;
  methods.forEach(function(method) {
    this[method] = function _wrappedMethod() {
      var clone = new this.constructor(this);
      state.children.push(clone);
      return clone[method].apply(clone, arguments);
    };
  }, this);
};

Node.prototype._init = function init(body) {
  var state = this._baseState;

  assert(state.parent === null);
  body.call(this);

  // Filter children
  state.children = state.children.filter(function(child) {
    return child._baseState.parent === this;
  }, this);
  assert.equal(state.children.length, 1, 'Root node can have only one child');
};

Node.prototype._useArgs = function useArgs(args) {
  var state = this._baseState;

  // Filter children and args
  var children = args.filter(function(arg) {
    return arg instanceof this.constructor;
  }, this);
  args = args.filter(function(arg) {
    return !(arg instanceof this.constructor);
  }, this);

  if (children.length !== 0) {
    assert(state.children === null);
    state.children = children;

    // Replace parent to maintain backward link
    children.forEach(function(child) {
      child._baseState.parent = this;
    }, this);
  }
  if (args.length !== 0) {
    assert(state.args === null);
    state.args = args;
    state.reverseArgs = args.map(function(arg) {
      if (typeof arg !== 'object' || arg.constructor !== Object)
        return arg;

      var res = {};
      Object.keys(arg).forEach(function(key) {
        if (key == (key | 0))
          key |= 0;
        var value = arg[key];
        res[value] = key;
      });
      return res;
    });
  }
};

//
// Overrided methods
//

overrided.forEach(function(method) {
  Node.prototype[method] = function _overrided() {
    var state = this._baseState;
    throw new Error(method + ' not implemented for encoding: ' + state.enc);
  };
});

//
// Public methods
//

tags.forEach(function(tag) {
  Node.prototype[tag] = function _tagMethod() {
    var state = this._baseState;
    var args = Array.prototype.slice.call(arguments);

    assert(state.tag === null);
    state.tag = tag;

    this._useArgs(args);

    return this;
  };
});

Node.prototype.use = function use(item) {
  var state = this._baseState;

  assert(state.use === null);
  state.use = item;

  return this;
};

Node.prototype.optional = function optional() {
  var state = this._baseState;

  state.optional = true;

  return this;
};

Node.prototype.def = function def(val) {
  var state = this._baseState;

  assert(state['default'] === null);
  state['default'] = val;
  state.optional = true;

  return this;
};

Node.prototype.explicit = function explicit(num) {
  var state = this._baseState;

  assert(state.explicit === null && state.implicit === null);
  state.explicit = num;

  return this;
};

Node.prototype.implicit = function implicit(num) {
  var state = this._baseState;

  assert(state.explicit === null && state.implicit === null);
  state.implicit = num;

  return this;
};

Node.prototype.obj = function obj() {
  var state = this._baseState;
  var args = Array.prototype.slice.call(arguments);

  state.obj = true;

  if (args.length !== 0)
    this._useArgs(args);

  return this;
};

Node.prototype.key = function key(newKey) {
  var state = this._baseState;

  assert(state.key === null);
  state.key = newKey;

  return this;
};

Node.prototype.any = function any() {
  var state = this._baseState;

  state.any = true;

  return this;
};

Node.prototype.choice = function choice(obj) {
  var state = this._baseState;

  assert(state.choice === null);
  state.choice = obj;
  this._useArgs(Object.keys(obj).map(function(key) {
    return obj[key];
  }));

  return this;
};

//
// Decoding
//

Node.prototype._decode = function decode(input) {
  var state = this._baseState;

  // Decode root node
  if (state.parent === null)
    return input.wrapResult(state.children[0]._decode(input));

  var result = state['default'];
  var present = true;

  var prevKey;
  if (state.key !== null)
    prevKey = input.enterKey(state.key);

  // Check if tag is there
  if (state.optional) {
    var tag = null;
    if (state.explicit !== null)
      tag = state.explicit;
    else if (state.implicit !== null)
      tag = state.implicit;
    else if (state.tag !== null)
      tag = state.tag;

    if (tag === null && !state.any) {
      // Trial and Error
      var save = input.save();
      try {
        if (state.choice === null)
          this._decodeGeneric(state.tag, input);
        else
          this._decodeChoice(input);
        present = true;
      } catch (e) {
        present = false;
      }
      input.restore(save);
    } else {
      present = this._peekTag(input, tag, state.any);

      if (input.isError(present))
        return present;
    }
  }

  // Push object on stack
  var prevObj;
  if (state.obj && present)
    prevObj = input.enterObject();

  if (present) {
    // Unwrap explicit values
    if (state.explicit !== null) {
      var explicit = this._decodeTag(input, state.explicit);
      if (input.isError(explicit))
        return explicit;
      input = explicit;
    }

    // Unwrap implicit and normal values
    if (state.use === null && state.choice === null) {
      if (state.any)
        var save = input.save();
      var body = this._decodeTag(
        input,
        state.implicit !== null ? state.implicit : state.tag,
        state.any
      );
      if (input.isError(body))
        return body;

      if (state.any)
        result = input.raw(save);
      else
        input = body;
    }

    // Select proper method for tag
    if (state.any)
      result = result;
    else if (state.choice === null)
      result = this._decodeGeneric(state.tag, input);
    else
      result = this._decodeChoice(input);

    if (input.isError(result))
      return result;

    // Decode children
    if (!state.any && state.choice === null && state.children !== null) {
      var fail = state.children.some(function decodeChildren(child) {
        // NOTE: We are ignoring errors here, to let parser continue with other
        // parts of encoded data
        child._decode(input);
      });
      if (fail)
        return err;
    }
  }

  // Pop object
  if (state.obj && present)
    result = input.leaveObject(prevObj);

  // Set key
  if (state.key !== null && (result !== null || present === true))
    input.leaveKey(prevKey, state.key, result);

  return result;
};

Node.prototype._decodeGeneric = function decodeGeneric(tag, input) {
  var state = this._baseState;

  if (tag === 'seq' || tag === 'set')
    return null;
  if (tag === 'seqof' || tag === 'setof')
    return this._decodeList(input, tag, state.args[0]);
  else if (tag === 'octstr' || tag === 'bitstr')
    return this._decodeStr(input, tag);
  else if (tag === 'ia5str' || tag === 'utf8str')
    return this._decodeStr(input, tag);
  else if (tag === 'objid' && state.args)
    return this._decodeObjid(input, state.args[0], state.args[1]);
  else if (tag === 'objid')
    return this._decodeObjid(input, null, null);
  else if (tag === 'gentime' || tag === 'utctime')
    return this._decodeTime(input, tag);
  else if (tag === 'null_')
    return this._decodeNull(input);
  else if (tag === 'bool')
    return this._decodeBool(input);
  else if (tag === 'int' || tag === 'enum')
    return this._decodeInt(input, state.args && state.args[0]);
  else if (state.use !== null)
    return this._getUse(state.use, input._reporterState.obj)._decode(input);
  else
    return input.error('unknown tag: ' + tag);

  return null;
};

Node.prototype._getUse = function _getUse(entity, obj) {

  var state = this._baseState;
  // Create altered use decoder if implicit is set
  state.useDecoder = this._use(entity, obj);
  assert(state.useDecoder._baseState.parent === null);
  state.useDecoder = state.useDecoder._baseState.children[0];
  if (state.implicit !== state.useDecoder._baseState.implicit) {
    state.useDecoder = state.useDecoder.clone();
    state.useDecoder._baseState.implicit = state.implicit;
  }
  return state.useDecoder;
};

Node.prototype._decodeChoice = function decodeChoice(input) {
  var state = this._baseState;
  var result = null;
  var match = false;

  Object.keys(state.choice).some(function(key) {
    var save = input.save();
    var node = state.choice[key];
    try {
      var value = node._decode(input);
      if (input.isError(value))
        return false;

      result = { type: key, value: value };
      match = true;
    } catch (e) {
      input.restore(save);
      return false;
    }
    return true;
  }, this);

  if (!match)
    return input.error('Choice not matched');

  return result;
};

//
// Encoding
//

Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) {
  return new EncoderBuffer(data, this.reporter);
};

Node.prototype._encode = function encode(data, reporter, parent) {
  var state = this._baseState;
  if (state['default'] !== null && state['default'] === data)
    return;

  var result = this._encodeValue(data, reporter, parent);
  if (result === undefined)
    return;

  if (this._skipDefault(result, reporter, parent))
    return;

  return result;
};

Node.prototype._encodeValue = function encode(data, reporter, parent) {
  var state = this._baseState;

  // Decode root node
  if (state.parent === null)
    return state.children[0]._encode(data, reporter || new Reporter());

  var result = null;
  var present = true;

  // Set reporter to share it with a child class
  this.reporter = reporter;

  // Check if data is there
  if (state.optional && data === undefined) {
    if (state['default'] !== null)
      data = state['default']
    else
      return;
  }

  // For error reporting
  var prevKey;

  // Encode children first
  var content = null;
  var primitive = false;
  if (state.any) {
    // Anything that was given is translated to buffer
    result = this._createEncoderBuffer(data);
  } else if (state.choice) {
    result = this._encodeChoice(data, reporter);
  } else if (state.children) {
    content = state.children.map(function(child) {
      if (child._baseState.tag === 'null_')
        return child._encode(null, reporter, data);

      if (child._baseState.key === null)
        return reporter.error('Child should have a key');
      var prevKey = reporter.enterKey(child._baseState.key);

      if (typeof data !== 'object')
        return reporter.error('Child expected, but input is not object');

      var res = child._encode(data[child._baseState.key], reporter, data);
      reporter.leaveKey(prevKey);

      return res;
    }, this).filter(function(child) {
      return child;
    });

    content = this._createEncoderBuffer(content);
  } else {
    if (state.tag === 'seqof' || state.tag === 'setof') {
      // TODO(indutny): this should be thrown on DSL level
      if (!(state.args && state.args.length === 1))
        return reporter.error('Too many args for : ' + state.tag);

      if (!Array.isArray(data))
        return reporter.error('seqof/setof, but data is not Array');

      var child = this.clone();
      child._baseState.implicit = null;
      content = this._createEncoderBuffer(data.map(function(item) {
        var state = this._baseState;

        return this._getUse(state.args[0], data)._encode(item, reporter);
      }, child));
    } else if (state.use !== null) {
      result = this._getUse(state.use, parent)._encode(data, reporter);
    } else {
      content = this._encodePrimitive(state.tag, data);
      primitive = true;
    }
  }

  // Encode data itself
  var result;
  if (!state.any && state.choice === null) {
    var tag = state.implicit !== null ? state.implicit : state.tag;
    var cls = state.implicit === null ? 'universal' : 'context';

    if (tag === null) {
      if (state.use === null)
        reporter.error('Tag could be ommited only for .use()');
    } else {
      if (state.use === null)
        result = this._encodeComposite(tag, primitive, cls, content);
    }
  }

  // Wrap in explicit
  if (state.explicit !== null)
    result = this._encodeComposite(state.explicit, false, 'context', result);

  return result;
};

Node.prototype._encodeChoice = function encodeChoice(data, reporter) {
  var state = this._baseState;

  var node = state.choice[data.type];
  if (!node) {
    assert(
        false,
        data.type + ' not found in ' +
            JSON.stringify(Object.keys(state.choice)));
  }
  return node._encode(data.value, reporter);
};

Node.prototype._encodePrimitive = function encodePrimitive(tag, data) {
  var state = this._baseState;

  if (tag === 'octstr' || tag === 'bitstr' || tag === 'ia5str')
    return this._encodeStr(data, tag);
  else if (tag === 'utf8str')
    return this._encodeStr(data, tag);
  else if (tag === 'objid' && state.args)
    return this._encodeObjid(data, state.reverseArgs[0], state.args[1]);
  else if (tag === 'objid')
    return this._encodeObjid(data, null, null);
  else if (tag === 'gentime' || tag === 'utctime')
    return this._encodeTime(data, tag);
  else if (tag === 'null_')
    return this._encodeNull();
  else if (tag === 'int' || tag === 'enum')
    return this._encodeInt(data, state.args && state.reverseArgs[0]);
  else if (tag === 'bool')
    return this._encodeBool(data);
  else
    throw new Error('Unsupported tag: ' + tag);
};

},{"../base":85,"minimalistic-assert":96}],87:[function(require,module,exports){
var inherits = require('inherits');

function Reporter(options) {
  this._reporterState = {
    obj: null,
    path: [],
    options: options || {},
    errors: []
  };
}
exports.Reporter = Reporter;

Reporter.prototype.isError = function isError(obj) {
  return obj instanceof ReporterError;
};

Reporter.prototype.save = function save() {
  var state = this._reporterState;

  return { obj: state.obj, pathLen: state.path.length };
};

Reporter.prototype.restore = function restore(data) {
  var state = this._reporterState;

  state.obj = data.obj;
  state.path = state.path.slice(0, data.pathLen);
};

Reporter.prototype.enterKey = function enterKey(key) {
  return this._reporterState.path.push(key);
};

Reporter.prototype.leaveKey = function leaveKey(index, key, value) {
  var state = this._reporterState;

  state.path = state.path.slice(0, index - 1);
  if (state.obj !== null)
    state.obj[key] = value;
};

Reporter.prototype.enterObject = function enterObject() {
  var state = this._reporterState;

  var prev = state.obj;
  state.obj = {};
  return prev;
};

Reporter.prototype.leaveObject = function leaveObject(prev) {
  var state = this._reporterState;

  var now = state.obj;
  state.obj = prev;
  return now;
};

Reporter.prototype.error = function error(msg) {
  var err;
  var state = this._reporterState;

  var inherited = msg instanceof ReporterError;
  if (inherited) {
    err = msg;
  } else {
    err = new ReporterError(state.path.map(function(elem) {
      return '[' + JSON.stringify(elem) + ']';
    }).join(''), msg.message || msg, msg.stack);
  }

  if (!state.options.partial)
    throw err;

  if (!inherited)
    state.errors.push(err);

  return err;
};

Reporter.prototype.wrapResult = function wrapResult(result) {
  var state = this._reporterState;
  if (!state.options.partial)
    return result;

  return {
    result: this.isError(result) ? null : result,
    errors: state.errors
  };
};

function ReporterError(path, msg) {
  this.path = path;
  this.rethrow(msg);
};
inherits(ReporterError, Error);

ReporterError.prototype.rethrow = function rethrow(msg) {
  this.message = msg + ' at: ' + (this.path || '(shallow)');
  Error.captureStackTrace(this, ReporterError);

  return this;
};

},{"inherits":210}],88:[function(require,module,exports){
var constants = require('../constants');

exports.tagClass = {
  0: 'universal',
  1: 'application',
  2: 'context',
  3: 'private'
};
exports.tagClassByName = constants._reverse(exports.tagClass);

exports.tag = {
  0x00: 'end',
  0x01: 'bool',
  0x02: 'int',
  0x03: 'bitstr',
  0x04: 'octstr',
  0x05: 'null_',
  0x06: 'objid',
  0x07: 'objDesc',
  0x08: 'external',
  0x09: 'real',
  0x0a: 'enum',
  0x0b: 'embed',
  0x0c: 'utf8str',
  0x0d: 'relativeOid',
  0x10: 'seq',
  0x11: 'set',
  0x12: 'numstr',
  0x13: 'printstr',
  0x14: 't61str',
  0x15: 'videostr',
  0x16: 'ia5str',
  0x17: 'utctime',
  0x18: 'gentime',
  0x19: 'graphstr',
  0x1a: 'iso646str',
  0x1b: 'genstr',
  0x1c: 'unistr',
  0x1d: 'charstr',
  0x1e: 'bmpstr'
};
exports.tagByName = constants._reverse(exports.tag);

},{"../constants":89}],89:[function(require,module,exports){
var constants = exports;

// Helper
constants._reverse = function reverse(map) {
  var res = {};

  Object.keys(map).forEach(function(key) {
    // Convert key to integer if it is stringified
    if ((key | 0) == key)
      key = key | 0;

    var value = map[key];
    res[value] = key;
  });

  return res;
};

constants.der = require('./der');

},{"./der":88}],90:[function(require,module,exports){
var inherits = require('inherits');

var asn1 = require('../../asn1');
var base = asn1.base;
var bignum = asn1.bignum;

// Import DER constants
var der = asn1.constants.der;

function DERDecoder(entity) {
  this.enc = 'der';
  this.name = entity.name;
  this.entity = entity;

  // Construct base tree
  this.tree = new DERNode();
  this.tree._init(entity.body);
};
module.exports = DERDecoder;

DERDecoder.prototype.decode = function decode(data, options) {
  if (!(data instanceof base.DecoderBuffer))
    data = new base.DecoderBuffer(data, options);

  return this.tree._decode(data, options);
};

// Tree methods

function DERNode(parent) {
  base.Node.call(this, 'der', parent);
}
inherits(DERNode, base.Node);

DERNode.prototype._peekTag = function peekTag(buffer, tag, any) {
  if (buffer.isEmpty())
    return false;

  var state = buffer.save();
  var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"');
  if (buffer.isError(decodedTag))
    return decodedTag;

  buffer.restore(state);

  return decodedTag.tag === tag || decodedTag.tagStr === tag || any;
};

DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) {
  var decodedTag = derDecodeTag(buffer,
                                'Failed to decode tag of "' + tag + '"');
  if (buffer.isError(decodedTag))
    return decodedTag;

  var len = derDecodeLen(buffer,
                         decodedTag.primitive,
                         'Failed to get length of "' + tag + '"');

  // Failure
  if (buffer.isError(len))
    return len;

  if (!any &&
      decodedTag.tag !== tag &&
      decodedTag.tagStr !== tag &&
      decodedTag.tagStr + 'of' !== tag) {
    return buffer.error('Failed to match tag: "' + tag + '"');
  }

  if (decodedTag.primitive || len !== null)
    return buffer.skip(len, 'Failed to match body of: "' + tag + '"');

  // Indefinite length... find END tag
  var state = buffer.save();
  var res = this._skipUntilEnd(
      buffer,
      'Failed to skip indefinite length body: "' + this.tag + '"');
  if (buffer.isError(res))
    return res;

  len = buffer.offset - state.offset;
  buffer.restore(state);
  return buffer.skip(len, 'Failed to match body of: "' + tag + '"');
};

DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) {
  while (true) {
    var tag = derDecodeTag(buffer, fail);
    if (buffer.isError(tag))
      return tag;
    var len = derDecodeLen(buffer, tag.primitive, fail);
    if (buffer.isError(len))
      return len;

    var res;
    if (tag.primitive || len !== null)
      res = buffer.skip(len)
    else
      res = this._skipUntilEnd(buffer, fail);

    // Failure
    if (buffer.isError(res))
      return res;

    if (tag.tagStr === 'end')
      break;
  }
};

DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder) {
  var result = [];
  while (!buffer.isEmpty()) {
    var possibleEnd = this._peekTag(buffer, 'end');
    if (buffer.isError(possibleEnd))
      return possibleEnd;

    var res = decoder.decode(buffer, 'der');
    if (buffer.isError(res) && possibleEnd)
      break;
    result.push(res);
  }
  return result;
};

DERNode.prototype._decodeStr = function decodeStr(buffer, tag) {
  if (tag === 'octstr') {
    return buffer.raw();
  } else if (tag === 'bitstr') {
    var unused = buffer.readUInt8();
    if (buffer.isError(unused))
      return unused;

    return { unused: unused, data: buffer.raw() };
  } else if (tag === 'ia5str' || tag === 'utf8str') {
    return buffer.raw().toString();
  } else {
    return this.error('Decoding of string type: ' + tag + ' unsupported');
  }
};

DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) {
  var identifiers = [];
  var ident = 0;
  while (!buffer.isEmpty()) {
    var subident = buffer.readUInt8();
    ident <<= 7;
    ident |= subident & 0x7f;
    if ((subident & 0x80) === 0) {
      identifiers.push(ident);
      ident = 0;
    }
  }
  if (subident & 0x80)
    identifiers.push(ident);

  var first = (identifiers[0] / 40) | 0;
  var second = identifiers[0] % 40;

  if (relative)
    result = identifiers;
  else
    result = [first, second].concat(identifiers.slice(1));

  if (values)
    result = values[result.join(' ')];

  return result;
};

DERNode.prototype._decodeTime = function decodeTime(buffer, tag) {
  var str = buffer.raw().toString();
  if (tag === 'gentime') {
    var year = str.slice(0, 4) | 0;
    var mon = str.slice(4, 6) | 0;
    var day = str.slice(6, 8) | 0;
    var hour = str.slice(8, 10) | 0;
    var min = str.slice(10, 12) | 0;
    var sec = str.slice(12, 14) | 0;
  } else if (tag === 'utctime') {
    var year = str.slice(0, 2) | 0;
    var mon = str.slice(2, 4) | 0;
    var day = str.slice(4, 6) | 0;
    var hour = str.slice(6, 8) | 0;
    var min = str.slice(8, 10) | 0;
    var sec = str.slice(10, 12) | 0;
    if (year < 70)
      year = 2000 + year;
    else
      year = 1900 + year;
  } else {
    return this.error('Decoding ' + tag + ' time is not supported yet');
  }

  return Date.UTC(year, mon - 1, day, hour, min, sec, 0);
};

DERNode.prototype._decodeNull = function decodeNull(buffer) {
  return null;
};

DERNode.prototype._decodeBool = function decodeBool(buffer) {
  var res = buffer.readUInt8();
  if (buffer.isError(res))
    return res;
  else
    return res !== 0;
};

DERNode.prototype._decodeInt = function decodeInt(buffer, values) {
  // Bigint, return as it is (assume big endian)
  var raw = buffer.raw();
  var res = new bignum(raw);

  if (values)
    res = values[res.toString(10)] || res;

  return res;
};

DERNode.prototype._use = function use(entity, obj) {
  if (typeof entity === 'function')
    entity = entity(obj);
  return entity._getDecoder('der').tree;
};

// Utility methods

function derDecodeTag(buf, fail) {
  var tag = buf.readUInt8(fail);
  if (buf.isError(tag))
    return tag;

  var cls = der.tagClass[tag >> 6];
  var primitive = (tag & 0x20) === 0;

  // Multi-octet tag - load
  if ((tag & 0x1f) === 0x1f) {
    var oct = tag;
    tag = 0;
    while ((oct & 0x80) === 0x80) {
      oct = buf.readUInt8(fail);
      if (buf.isError(oct))
        return oct;

      tag <<= 7;
      tag |= oct & 0x7f;
    }
  } else {
    tag &= 0x1f;
  }
  var tagStr = der.tag[tag];

  return {
    cls: cls,
    primitive: primitive,
    tag: tag,
    tagStr: tagStr
  };
}

function derDecodeLen(buf, primitive, fail) {
  var len = buf.readUInt8(fail);
  if (buf.isError(len))
    return len;

  // Indefinite form
  if (!primitive && len === 0x80)
    return null;

  // Definite form
  if ((len & 0x80) === 0) {
    // Short form
    return len;
  }

  // Long form
  var num = len & 0x7f;
  if (num >= 4)
    return buf.error('length octect is too long');

  len = 0;
  for (var i = 0; i < num; i++) {
    len <<= 8;
    var j = buf.readUInt8(fail);
    if (buf.isError(j))
      return j;
    len |= j;
  }

  return len;
}

},{"../../asn1":82,"inherits":210}],91:[function(require,module,exports){
var decoders = exports;

decoders.der = require('./der');
decoders.pem = require('./pem');

},{"./der":90,"./pem":92}],92:[function(require,module,exports){
var inherits = require('inherits');
var Buffer = require('buffer').Buffer;

var asn1 = require('../../asn1');
var DERDecoder = require('./der');

function PEMDecoder(entity) {
  DERDecoder.call(this, entity);
  this.enc = 'pem';
};
inherits(PEMDecoder, DERDecoder);
module.exports = PEMDecoder;

PEMDecoder.prototype.decode = function decode(data, options) {
  var lines = data.toString().split(/[\r\n]+/g);

  var label = options.label.toUpperCase();

  var re = /^-----(BEGIN|END) ([^-]+)-----$/;
  var start = -1;
  var end = -1;
  for (var i = 0; i < lines.length; i++) {
    var match = lines[i].match(re);
    if (match === null)
      continue;

    if (match[2] !== label)
      continue;

    if (start === -1) {
      if (match[1] !== 'BEGIN')
        break;
      start = i;
    } else {
      if (match[1] !== 'END')
        break;
      end = i;
      break;
    }
  }
  if (start === -1 || end === -1)
    throw new Error('PEM section not found for: ' + label);

  var base64 = lines.slice(start + 1, end).join('');
  // Remove excessive symbols
  base64.replace(/[^a-z0-9\+\/=]+/gi, '');

  var input = new Buffer(base64, 'base64');
  return DERDecoder.prototype.decode.call(this, input, options);
};

},{"../../asn1":82,"./der":90,"buffer":18,"inherits":210}],93:[function(require,module,exports){
var inherits = require('inherits');
var Buffer = require('buffer').Buffer;

var asn1 = require('../../asn1');
var base = asn1.base;
var bignum = asn1.bignum;

// Import DER constants
var der = asn1.constants.der;

function DEREncoder(entity) {
  this.enc = 'der';
  this.name = entity.name;
  this.entity = entity;

  // Construct base tree
  this.tree = new DERNode();
  this.tree._init(entity.body);
};
module.exports = DEREncoder;

DEREncoder.prototype.encode = function encode(data, reporter) {
  return this.tree._encode(data, reporter).join();
};

// Tree methods

function DERNode(parent) {
  base.Node.call(this, 'der', parent);
}
inherits(DERNode, base.Node);

DERNode.prototype._encodeComposite = function encodeComposite(tag,
                                                              primitive,
                                                              cls,
                                                              content) {
  var encodedTag = encodeTag(tag, primitive, cls, this.reporter);

  // Short form
  if (content.length < 0x80) {
    var header = new Buffer(2);
    header[0] = encodedTag;
    header[1] = content.length;
    return this._createEncoderBuffer([ header, content ]);
  }

  // Long form
  // Count octets required to store length
  var lenOctets = 1;
  for (var i = content.length; i >= 0x100; i >>= 8)
    lenOctets++;

  var header = new Buffer(1 + 1 + lenOctets);
  header[0] = encodedTag;
  header[1] = 0x80 | lenOctets;

  for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8)
    header[i] = j & 0xff;

  return this._createEncoderBuffer([ header, content ]);
};

DERNode.prototype._encodeStr = function encodeStr(str, tag) {
  if (tag === 'octstr')
    return this._createEncoderBuffer(str);
  else if (tag === 'bitstr')
    return this._createEncoderBuffer([ str.unused | 0, str.data ]);
  else if (tag === 'ia5str' || tag === 'utf8str')
    return this._createEncoderBuffer(str);
  return this.reporter.error('Encoding of string type: ' + tag +
                             ' unsupported');
};

DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) {
  if (typeof id === 'string') {
    if (!values)
      return this.reporter.error('string objid given, but no values map found');
    if (!values.hasOwnProperty(id))
      return this.reporter.error('objid not found in values map');
    id = values[id].split(/[\s\.]+/g);
    for (var i = 0; i < id.length; i++)
      id[i] |= 0;
  } else if (Array.isArray(id)) {
    id = id.slice();
    for (var i = 0; i < id.length; i++)
      id[i] |= 0;
  }

  if (!Array.isArray(id)) {
    return this.reporter.error('objid() should be either array or string, ' +
                               'got: ' + JSON.stringify(id));
  }

  if (!relative) {
    if (id[1] >= 40)
      return this.reporter.error('Second objid identifier OOB');
    id.splice(0, 2, id[0] * 40 + id[1]);
  }

  // Count number of octets
  var size = 0;
  for (var i = 0; i < id.length; i++) {
    var ident = id[i];
    for (size++; ident >= 0x80; ident >>= 7)
      size++;
  }

  var objid = new Buffer(size);
  var offset = objid.length - 1;
  for (var i = id.length - 1; i >= 0; i--) {
    var ident = id[i];
    objid[offset--] = ident & 0x7f;
    while ((ident >>= 7) > 0)
      objid[offset--] = 0x80 | (ident & 0x7f);
  }

  return this._createEncoderBuffer(objid);
};

function two(num) {
  if (num < 10)
    return '0' + num;
  else
    return num;
}

DERNode.prototype._encodeTime = function encodeTime(time, tag) {
  var str;
  var date = new Date(time);

  if (tag === 'gentime') {
    str = [
      two(date.getFullYear()),
      two(date.getUTCMonth() + 1),
      two(date.getUTCDate()),
      two(date.getUTCHours()),
      two(date.getUTCMinutes()),
      two(date.getUTCSeconds()),
      'Z'
    ].join('');
  } else if (tag === 'utctime') {
    str = [
      two(date.getFullYear() % 100),
      two(date.getUTCMonth() + 1),
      two(date.getUTCDate()),
      two(date.getUTCHours()),
      two(date.getUTCMinutes()),
      two(date.getUTCSeconds()),
      'Z'
    ].join('');
  } else {
    this.reporter.error('Encoding ' + tag + ' time is not supported yet');
  }

  return this._encodeStr(str, 'octstr');
};

DERNode.prototype._encodeNull = function encodeNull() {
  return this._createEncoderBuffer('');
};

DERNode.prototype._encodeInt = function encodeInt(num, values) {
  if (typeof num === 'string') {
    if (!values)
      return this.reporter.error('String int or enum given, but no values map');
    if (!values.hasOwnProperty(num)) {
      return this.reporter.error('Values map doesn\'t contain: ' +
                                 JSON.stringify(num));
    }
    num = values[num];
  }

  // Bignum, assume big endian
  if (typeof num !== 'number' && !Buffer.isBuffer(num)) {
    var numArray = num.toArray();
    if (num.sign === false && numArray[0] & 0x80) {
      numArray.unshift(0);
    }
    num = new Buffer(numArray);
  }

  if (Buffer.isBuffer(num)) {
    var size = num.length;
    if (num.length === 0)
      size++;

    var out = new Buffer(size);
    num.copy(out);
    if (num.length === 0)
      out[0] = 0
    return this._createEncoderBuffer(out);
  }

  if (num < 0x80)
    return this._createEncoderBuffer(num);

  if (num < 0x100)
    return this._createEncoderBuffer([0, num]);

  var size = 1;
  for (var i = num; i >= 0x100; i >>= 8)
    size++;

  var out = new Array(size);
  for (var i = out.length - 1; i >= 0; i--) {
    out[i] = num & 0xff;
    num >>= 8;
  }
  if(out[0] & 0x80) {
    out.unshift(0);
  }

  return this._createEncoderBuffer(new Buffer(out));
};

DERNode.prototype._encodeBool = function encodeBool(value) {
  return this._createEncoderBuffer(value ? 0xff : 0);
};

DERNode.prototype._use = function use(entity, obj) {
  if (typeof entity === 'function')
    entity = entity(obj);
  return entity._getEncoder('der').tree;
};

DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) {
  var state = this._baseState;
  var i;
  if (state['default'] === null)
    return false;

  var data = dataBuffer.join();
  if (state.defaultBuffer === undefined)
    state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join();

  if (data.length !== state.defaultBuffer.length)
    return false;

  for (i=0; i < data.length; i++)
    if (data[i] !== state.defaultBuffer[i])
      return false;

  return true;
};

// Utility methods

function encodeTag(tag, primitive, cls, reporter) {
  var res;

  if (tag === 'seqof')
    tag = 'seq';
  else if (tag === 'setof')
    tag = 'set';

  if (der.tagByName.hasOwnProperty(tag))
    res = der.tagByName[tag];
  else if (typeof tag === 'number' && (tag | 0) === tag)
    res = tag;
  else
    return reporter.error('Unknown tag: ' + tag);

  if (res >= 0x1f)
    return reporter.error('Multi-octet tag encoding unsupported');

  if (!primitive)
    res |= 0x20;

  res |= (der.tagClassByName[cls || 'universal'] << 6);

  return res;
}

},{"../../asn1":82,"buffer":18,"inherits":210}],94:[function(require,module,exports){
var encoders = exports;

encoders.der = require('./der');
encoders.pem = require('./pem');

},{"./der":93,"./pem":95}],95:[function(require,module,exports){
var inherits = require('inherits');
var Buffer = require('buffer').Buffer;

var asn1 = require('../../asn1');
var DEREncoder = require('./der');

function PEMEncoder(entity) {
  DEREncoder.call(this, entity);
  this.enc = 'pem';
};
inherits(PEMEncoder, DEREncoder);
module.exports = PEMEncoder;

PEMEncoder.prototype.encode = function encode(data, options) {
  var buf = DEREncoder.prototype.encode.call(this, data);

  var p = buf.toString('base64');
  var out = [ '-----BEGIN ' + options.label + '-----' ];
  for (var i = 0; i < p.length; i += 64)
    out.push(p.slice(i, i + 64));
  out.push('-----END ' + options.label + '-----');
  return out.join('\n');
};

},{"../../asn1":82,"./der":93,"buffer":18,"inherits":210}],96:[function(require,module,exports){
arguments[4][50][0].apply(exports,arguments)
},{"dup":50}],97:[function(require,module,exports){
arguments[4][24][0].apply(exports,arguments)
},{"buffer":18,"dup":24}],98:[function(require,module,exports){
arguments[4][25][0].apply(exports,arguments)
},{"./aes":97,"./ghash":102,"buffer":18,"buffer-xor":111,"cipher-base":112,"dup":25,"inherits":210}],99:[function(require,module,exports){
arguments[4][26][0].apply(exports,arguments)
},{"./decrypter":100,"./encrypter":101,"./modes":103,"dup":26}],100:[function(require,module,exports){
arguments[4][27][0].apply(exports,arguments)
},{"./aes":97,"./authCipher":98,"./modes":103,"./modes/cbc":104,"./modes/cfb":105,"./modes/cfb1":106,"./modes/cfb8":107,"./modes/ctr":108,"./modes/ecb":109,"./modes/ofb":110,"./streamCipher":113,"buffer":18,"cipher-base":112,"dup":27,"evp_bytestokey":114,"inherits":210}],101:[function(require,module,exports){
arguments[4][28][0].apply(exports,arguments)
},{"./aes":97,"./authCipher":98,"./modes":103,"./modes/cbc":104,"./modes/cfb":105,"./modes/cfb1":106,"./modes/cfb8":107,"./modes/ctr":108,"./modes/ecb":109,"./modes/ofb":110,"./streamCipher":113,"buffer":18,"cipher-base":112,"dup":28,"evp_bytestokey":114,"inherits":210}],102:[function(require,module,exports){
arguments[4][29][0].apply(exports,arguments)
},{"buffer":18,"dup":29}],103:[function(require,module,exports){
arguments[4][30][0].apply(exports,arguments)
},{"dup":30}],104:[function(require,module,exports){
arguments[4][31][0].apply(exports,arguments)
},{"buffer-xor":111,"dup":31}],105:[function(require,module,exports){
arguments[4][32][0].apply(exports,arguments)
},{"buffer":18,"buffer-xor":111,"dup":32}],106:[function(require,module,exports){
arguments[4][33][0].apply(exports,arguments)
},{"buffer":18,"dup":33}],107:[function(require,module,exports){
arguments[4][34][0].apply(exports,arguments)
},{"buffer":18,"dup":34}],108:[function(require,module,exports){
arguments[4][35][0].apply(exports,arguments)
},{"buffer":18,"buffer-xor":111,"dup":35}],109:[function(require,module,exports){
arguments[4][36][0].apply(exports,arguments)
},{"dup":36}],110:[function(require,module,exports){
arguments[4][37][0].apply(exports,arguments)
},{"buffer":18,"buffer-xor":111,"dup":37}],111:[function(require,module,exports){
arguments[4][38][0].apply(exports,arguments)
},{"buffer":18,"dup":38}],112:[function(require,module,exports){
arguments[4][39][0].apply(exports,arguments)
},{"buffer":18,"dup":39,"inherits":210,"stream":233,"string_decoder":243}],113:[function(require,module,exports){
arguments[4][40][0].apply(exports,arguments)
},{"./aes":97,"buffer":18,"cipher-base":112,"dup":40,"inherits":210}],114:[function(require,module,exports){
arguments[4][51][0].apply(exports,arguments)
},{"buffer":18,"create-hash/md5":142,"dup":51}],115:[function(require,module,exports){
(function (Buffer){
// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js
var createHmac = require('create-hmac')
var crt = require('browserify-rsa')
var curves = require('./curves')
var elliptic = require('elliptic')
var parseKeys = require('parse-asn1')

var BN = require('bn.js')
var EC = elliptic.ec

function sign (hash, key, hashType, signType) {
  var priv = parseKeys(key)
  if (priv.curve) {
    if (signType !== 'ecdsa') throw new Error('wrong private key type')

    return ecSign(hash, priv)
  } else if (priv.type === 'dsa') {
    if (signType !== 'dsa') {
      throw new Error('wrong private key type')
    }
    return dsaSign(hash, priv, hashType)
  } else {
    if (signType !== 'rsa') throw new Error('wrong private key type')
  }

  var len = priv.modulus.byteLength()
  var pad = [ 0, 1 ]
  while (hash.length + pad.length + 1 < len) {
    pad.push(0xff)
  }
  pad.push(0x00)
  var i = -1
  while (++i < hash.length) {
    pad.push(hash[i])
  }

  var out = crt(pad, priv)
  return out
}

function ecSign (hash, priv) {
  var curveId = curves[priv.curve.join('.')]
  if (!curveId) throw new Error('unknown curve ' + priv.curve.join('.'))

  var curve = new EC(curveId)
  var key = curve.genKeyPair()

  key._importPrivate(priv.privateKey)
  var out = key.sign(hash)

  return new Buffer(out.toDER())
}

function dsaSign (hash, priv, algo) {
  var x = priv.params.priv_key
  var p = priv.params.p
  var q = priv.params.q
  var g = priv.params.g
  var r = new BN(0)
  var k
  var H = bits2int(hash, q).mod(q)
  var s = false
  var kv = getKey(x, q, hash, algo)
  while (s === false) {
    k = makeKey(q, kv, algo)
    r = makeR(g, k, p, q)
    s = k.invm(q).imul(H.add(x.mul(r))).mod(q)
    if (!s.cmpn(0)) {
      s = false
      r = new BN(0)
    }
  }
  return toDER(r, s)
}

function toDER (r, s) {
  r = r.toArray()
  s = s.toArray()

  // Pad values
  if (r[0] & 0x80) {
    r = [ 0 ].concat(r)
  }
  // Pad values
  if (s[0] & 0x80) {
    s = [0].concat(s)
  }

  var total = r.length + s.length + 4
  var res = [ 0x30, total, 0x02, r.length ]
  res = res.concat(r, [ 0x02, s.length ], s)
  return new Buffer(res)
}

function getKey (x, q, hash, algo) {
  x = new Buffer(x.toArray())
  if (x.length < q.byteLength()) {
    var zeros = new Buffer(q.byteLength() - x.length)
    zeros.fill(0)
    x = Buffer.concat([zeros, x])
  }
  var hlen = hash.length
  var hbits = bits2octets(hash, q)
  var v = new Buffer(hlen)
  v.fill(1)
  var k = new Buffer(hlen)
  k.fill(0)
  k = createHmac(algo, k)
    .update(v)
    .update(new Buffer([0]))
    .update(x)
    .update(hbits)
    .digest()
  v = createHmac(algo, k)
    .update(v)
    .digest()
  k = createHmac(algo, k)
    .update(v)
    .update(new Buffer([1]))
    .update(x)
    .update(hbits)
    .digest()
  v = createHmac(algo, k)
    .update(v)
    .digest()
  return {
    k: k,
    v: v
  }
}

function bits2int (obits, q) {
  var bits = new BN(obits)
  var shift = (obits.length << 3) - q.bitLength()
  if (shift > 0) {
    bits.ishrn(shift)
  }
  return bits
}

function bits2octets (bits, q) {
  bits = bits2int(bits, q)
  bits = bits.mod(q)
  var out = new Buffer(bits.toArray())
  if (out.length < q.byteLength()) {
    var zeros = new Buffer(q.byteLength() - out.length)
    zeros.fill(0)
    out = Buffer.concat([zeros, out])
  }
  return out
}

function makeKey (q, kv, algo) {
  var t, k

  do {
    t = new Buffer('')

    while (t.length * 8 < q.bitLength()) {
      kv.v = createHmac(algo, kv.k)
        .update(kv.v)
        .digest()
      t = Buffer.concat([t, kv.v])
    }

    k = bits2int(t, q)
    kv.k = createHmac(algo, kv.k)
      .update(kv.v)
      .update(new Buffer([0]))
      .digest()
    kv.v = createHmac(algo, kv.k)
      .update(kv.v)
      .digest()
  } while (k.cmp(q) !== -1)

  return k
}

function makeR (g, k, p, q) {
  return g.toRed(BN.mont(p)).redPow(k).fromRed().mod(q)
}

module.exports = sign
module.exports.getKey = getKey
module.exports.makeKey = makeKey

}).call(this,require("buffer").Buffer)
},{"./curves":54,"bn.js":55,"browserify-rsa":56,"buffer":18,"create-hmac":153,"elliptic":57,"parse-asn1":81}],116:[function(require,module,exports){
(function (Buffer){
// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js
var curves = require('./curves')
var elliptic = require('elliptic')
var parseKeys = require('parse-asn1')

var BN = require('bn.js')
var EC = elliptic.ec

function verify (sig, hash, key, signType) {
  var pub = parseKeys(key)
  if (pub.type === 'ec') {
    if (signType !== 'ecdsa') {
      throw new Error('wrong public key type')
    }
    return ecVerify(sig, hash, pub)
  } else if (pub.type === 'dsa') {
    if (signType !== 'dsa') {
      throw new Error('wrong public key type')
    }
    return dsaVerify(sig, hash, pub)
  } else {
    if (signType !== 'rsa') {
      throw new Error('wrong public key type')
    }
  }
  var len = pub.modulus.byteLength()
  var pad = [ 1 ]
  var padNum = 0
  while (hash.length + pad.length + 2 < len) {
    pad.push(0xff)
    padNum++
  }
  pad.push(0x00)
  var i = -1
  while (++i < hash.length) {
    pad.push(hash[i])
  }
  pad = new Buffer(pad)
  var red = BN.mont(pub.modulus)
  sig = new BN(sig).toRed(red)

  sig = sig.redPow(new BN(pub.publicExponent))

  sig = new Buffer(sig.fromRed().toArray())
  var out = 0
  if (padNum < 8) {
    out = 1
  }
  len = Math.min(sig.length, pad.length)
  if (sig.length !== pad.length) {
    out = 1
  }

  i = -1
  while (++i < len) {
    out |= (sig[i] ^ pad[i])
  }
  return out === 0
}

function ecVerify (sig, hash, pub) {
  var curveId = curves[pub.data.algorithm.curve.join('.')]
  if (!curveId) throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.'))

  var curve = new EC(curveId)
  var pubkey = pub.data.subjectPrivateKey.data

  return curve.verify(hash, sig, pubkey)
}

function dsaVerify (sig, hash, pub) {
  var p = pub.data.p
  var q = pub.data.q
  var g = pub.data.g
  var y = pub.data.pub_key
  var unpacked = parseKeys.signature.decode(sig, 'der')
  var s = unpacked.s
  var r = unpacked.r
  checkValue(s, q)
  checkValue(r, q)
  var montp = BN.mont(p)
  var w = s.invm(q)
  var v = g.toRed(montp)
    .redPow(new BN(hash).mul(w).mod(q))
    .fromRed()
    .mul(
      y.toRed(montp)
        .redPow(r.mul(w).mod(q))
        .fromRed()
  ).mod(p).mod(q)
  return !v.cmp(r)
}

function checkValue (b, q) {
  if (b.cmpn(0) <= 0) {
    throw new Error('invalid sig')
  }
  if (b.cmp(q) >= q) {
    throw new Error('invalid sig')
  }
}

module.exports = verify

}).call(this,require("buffer").Buffer)
},{"./curves":54,"bn.js":55,"buffer":18,"elliptic":57,"parse-asn1":81}],117:[function(require,module,exports){
(function (Buffer){
var elliptic = require('elliptic');
var BN = require('bn.js');

module.exports = function createECDH(curve) {
	return new ECDH(curve);
};

var aliases = {
	secp256k1: {
		name: 'secp256k1',
		byteLength: 32
	},
	secp224r1: {
		name: 'p224',
		byteLength: 28
	},
	prime256v1: {
		name: 'p256',
		byteLength: 32
	},
	prime192v1: {
		name: 'p192',
		byteLength: 24
	},
	ed25519: {
		name: 'ed25519',
		byteLength: 32
	}
};

aliases.p224 = aliases.secp224r1;
aliases.p256 = aliases.secp256r1 = aliases.prime256v1;
aliases.p192 = aliases.secp192r1 = aliases.prime192v1;

function ECDH(curve) {
	this.curveType = aliases[curve];
	if (!this.curveType ) {
		this.curveType = {
			name: curve
		};
	}
	this.curve = new elliptic.ec(this.curveType.name);
	this.keys = void 0;
}

ECDH.prototype.generateKeys = function (enc, format) {
	this.keys = this.curve.genKeyPair();
	return this.getPublicKey(enc, format);
};

ECDH.prototype.computeSecret = function (other, inenc, enc) {
	inenc = inenc || 'utf8';
	if (!Buffer.isBuffer(other)) {
		other = new Buffer(other, inenc);
	}
	var otherPub = this.curve.keyFromPublic(other).getPublic();
	var out = otherPub.mul(this.keys.getPrivate()).getX();
	return formatReturnValue(out, enc, this.curveType.byteLength);
};

ECDH.prototype.getPublicKey = function (enc, format) {
	var key = this.keys.getPublic(format === 'compressed', true);
	if (format === 'hybrid') {
		if (key[key.length - 1] % 2) {
			key[0] = 7;
		} else {
			key [0] = 6;
		}
	}
	return formatReturnValue(key, enc);
};

ECDH.prototype.getPrivateKey = function (enc) {
	return formatReturnValue(this.keys.getPrivate(), enc);
};

ECDH.prototype.setPublicKey = function (pub, enc) {
	enc = enc || 'utf8';
	if (!Buffer.isBuffer(pub)) {
		pub = new Buffer(pub, enc);
	}
	this.keys._importPublic(pub);
	return this;
};

ECDH.prototype.setPrivateKey = function (priv, enc) {
	enc = enc || 'utf8';
	if (!Buffer.isBuffer(priv)) {
		priv = new Buffer(priv, enc);
	}
	var _priv = new BN(priv);
	_priv = _priv.toString(16);
	this.keys._importPrivate(_priv);
	return this;
};

function formatReturnValue(bn, enc, len) {
	if (!Array.isArray(bn)) {
		bn = bn.toArray();
	}
	var buf = new Buffer(bn);
	if (len && buf.length < len) {
		var zeros = new Buffer(len - buf.length);
		zeros.fill(0);
		buf = Buffer.concat([zeros, buf]);
	}
	if (!enc) {
		return buf;
	} else {
		return buf.toString(enc);
	}
}

}).call(this,require("buffer").Buffer)
},{"bn.js":118,"buffer":18,"elliptic":119}],118:[function(require,module,exports){
arguments[4][55][0].apply(exports,arguments)
},{"dup":55}],119:[function(require,module,exports){
arguments[4][57][0].apply(exports,arguments)
},{"../package.json":139,"./elliptic/curve":122,"./elliptic/curves":125,"./elliptic/ec":126,"./elliptic/hmac-drbg":129,"./elliptic/utils":131,"brorand":132,"dup":57}],120:[function(require,module,exports){
arguments[4][58][0].apply(exports,arguments)
},{"../../elliptic":119,"bn.js":118,"dup":58}],121:[function(require,module,exports){
arguments[4][59][0].apply(exports,arguments)
},{"../../elliptic":119,"../curve":122,"bn.js":118,"dup":59,"inherits":210}],122:[function(require,module,exports){
arguments[4][60][0].apply(exports,arguments)
},{"./base":120,"./edwards":121,"./mont":123,"./short":124,"dup":60}],123:[function(require,module,exports){
arguments[4][61][0].apply(exports,arguments)
},{"../curve":122,"bn.js":118,"dup":61,"inherits":210}],124:[function(require,module,exports){
arguments[4][62][0].apply(exports,arguments)
},{"../../elliptic":119,"../curve":122,"bn.js":118,"dup":62,"inherits":210}],125:[function(require,module,exports){
arguments[4][63][0].apply(exports,arguments)
},{"../elliptic":119,"./precomputed/secp256k1":130,"dup":63,"hash.js":133}],126:[function(require,module,exports){
arguments[4][64][0].apply(exports,arguments)
},{"../../elliptic":119,"./key":127,"./signature":128,"bn.js":118,"dup":64}],127:[function(require,module,exports){
arguments[4][65][0].apply(exports,arguments)
},{"../../elliptic":119,"bn.js":118,"dup":65}],128:[function(require,module,exports){
arguments[4][66][0].apply(exports,arguments)
},{"../../elliptic":119,"bn.js":118,"dup":66}],129:[function(require,module,exports){
arguments[4][67][0].apply(exports,arguments)
},{"../elliptic":119,"dup":67,"hash.js":133}],130:[function(require,module,exports){
arguments[4][68][0].apply(exports,arguments)
},{"dup":68}],131:[function(require,module,exports){
arguments[4][69][0].apply(exports,arguments)
},{"dup":69}],132:[function(require,module,exports){
arguments[4][70][0].apply(exports,arguments)
},{"dup":70}],133:[function(require,module,exports){
arguments[4][71][0].apply(exports,arguments)
},{"./hash/common":134,"./hash/hmac":135,"./hash/ripemd":136,"./hash/sha":137,"./hash/utils":138,"dup":71}],134:[function(require,module,exports){
arguments[4][72][0].apply(exports,arguments)
},{"../hash":133,"dup":72}],135:[function(require,module,exports){
arguments[4][73][0].apply(exports,arguments)
},{"../hash":133,"dup":73}],136:[function(require,module,exports){
arguments[4][74][0].apply(exports,arguments)
},{"../hash":133,"dup":74}],137:[function(require,module,exports){
arguments[4][75][0].apply(exports,arguments)
},{"../hash":133,"dup":75}],138:[function(require,module,exports){
arguments[4][76][0].apply(exports,arguments)
},{"dup":76,"inherits":210}],139:[function(require,module,exports){
arguments[4][77][0].apply(exports,arguments)
},{"dup":77}],140:[function(require,module,exports){
(function (Buffer){
'use strict';
var inherits = require('inherits')
var md5 = require('./md5')
var rmd160 = require('ripemd160')
var sha = require('sha.js')

var Base = require('cipher-base')

function HashNoConstructor(hash) {
  Base.call(this, 'digest')

  this._hash = hash
  this.buffers = []
}

inherits(HashNoConstructor, Base)

HashNoConstructor.prototype._update = function (data) {
  this.buffers.push(data)
}

HashNoConstructor.prototype._final = function () {
  var buf = Buffer.concat(this.buffers)
  var r = this._hash(buf)
  this.buffers = null

  return r
}

function Hash(hash) {
  Base.call(this, 'digest')

  this._hash = hash
}

inherits(Hash, Base)

Hash.prototype._update = function (data) {
  this._hash.update(data)
}

Hash.prototype._final = function () {
  return this._hash.digest()
}

module.exports = function createHash (alg) {
  alg = alg.toLowerCase()
  if ('md5' === alg) return new HashNoConstructor(md5)
  if ('rmd160' === alg || 'ripemd160' === alg) return new HashNoConstructor(rmd160)

  return new Hash(sha(alg))
}

}).call(this,require("buffer").Buffer)
},{"./md5":142,"buffer":18,"cipher-base":143,"inherits":210,"ripemd160":144,"sha.js":146}],141:[function(require,module,exports){
(function (Buffer){
'use strict';
var intSize = 4;
var zeroBuffer = new Buffer(intSize); zeroBuffer.fill(0);
var chrsz = 8;

function toArray(buf, bigEndian) {
  if ((buf.length % intSize) !== 0) {
    var len = buf.length + (intSize - (buf.length % intSize));
    buf = Buffer.concat([buf, zeroBuffer], len);
  }

  var arr = [];
  var fn = bigEndian ? buf.readInt32BE : buf.readInt32LE;
  for (var i = 0; i < buf.length; i += intSize) {
    arr.push(fn.call(buf, i));
  }
  return arr;
}

function toBuffer(arr, size, bigEndian) {
  var buf = new Buffer(size);
  var fn = bigEndian ? buf.writeInt32BE : buf.writeInt32LE;
  for (var i = 0; i < arr.length; i++) {
    fn.call(buf, arr[i], i * 4, true);
  }
  return buf;
}

function hash(buf, fn, hashSize, bigEndian) {
  if (!Buffer.isBuffer(buf)) buf = new Buffer(buf);
  var arr = fn(toArray(buf, bigEndian), buf.length * chrsz);
  return toBuffer(arr, hashSize, bigEndian);
}
exports.hash = hash;
}).call(this,require("buffer").Buffer)
},{"buffer":18}],142:[function(require,module,exports){
'use strict';
/*
 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321.
 * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for more info.
 */

var helpers = require('./helpers');

/*
 * Calculate the MD5 of an array of little-endian words, and a bit length
 */
function core_md5(x, len)
{
  /* append padding */
  x[len >> 5] |= 0x80 << ((len) % 32);
  x[(((len + 64) >>> 9) << 4) + 14] = len;

  var a =  1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d =  271733878;

  for(var i = 0; i < x.length; i += 16)
  {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;

    a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
    d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
    c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
    b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
    a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
    d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
    c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
    b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
    a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
    d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
    c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
    b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
    a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
    d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
    c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
    b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);

    a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
    d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
    c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);
    b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
    a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
    d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
    c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
    b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
    a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
    d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
    c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
    b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
    a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
    d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
    c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
    b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);

    a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
    d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
    c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
    b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
    a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
    d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
    c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
    b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
    a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
    d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
    c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
    b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
    a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
    d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
    c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);
    b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);

    a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
    d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
    c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
    b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
    a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
    d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
    c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
    b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
    a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
    d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
    c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
    b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
    a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
    d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
    c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
    b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);

    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
  }
  return Array(a, b, c, d);

}

/*
 * These functions implement the four basic operations the algorithm uses.
 */
function md5_cmn(q, a, b, x, s, t)
{
  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
}
function md5_ff(a, b, c, d, x, s, t)
{
  return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md5_gg(a, b, c, d, x, s, t)
{
  return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md5_hh(a, b, c, d, x, s, t)
{
  return md5_cmn(b ^ c ^ d, a, b, x, s, t);
}
function md5_ii(a, b, c, d, x, s, t)
{
  return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
}

/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */
function safe_add(x, y)
{
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
}

/*
 * Bitwise rotate a 32-bit number to the left.
 */
function bit_rol(num, cnt)
{
  return (num << cnt) | (num >>> (32 - cnt));
}

module.exports = function md5(buf) {
  return helpers.hash(buf, core_md5, 16);
};
},{"./helpers":141}],143:[function(require,module,exports){
arguments[4][39][0].apply(exports,arguments)
},{"buffer":18,"dup":39,"inherits":210,"stream":233,"string_decoder":243}],144:[function(require,module,exports){
(function (Buffer){
/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
/** @preserve
(c) 2012 by Cédric Mesnil. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

    - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
    - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

// constants table
var zl = [
  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
]

var zr = [
  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
]

var sl = [
  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
]

var sr = [
  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
]

var hl = [0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E]
var hr = [0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000]

function bytesToWords (bytes) {
  var words = []
  for (var i = 0, b = 0; i < bytes.length; i++, b += 8) {
    words[b >>> 5] |= bytes[i] << (24 - b % 32)
  }
  return words
}

function wordsToBytes (words) {
  var bytes = []
  for (var b = 0; b < words.length * 32; b += 8) {
    bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF)
  }
  return bytes
}

function processBlock (H, M, offset) {
  // swap endian
  for (var i = 0; i < 16; i++) {
    var offset_i = offset + i
    var M_offset_i = M[offset_i]

    // Swap
    M[offset_i] = (
      (((M_offset_i << 8) | (M_offset_i >>> 24)) & 0x00ff00ff) |
      (((M_offset_i << 24) | (M_offset_i >>> 8)) & 0xff00ff00)
    )
  }

  // Working variables
  var al, bl, cl, dl, el
  var ar, br, cr, dr, er

  ar = al = H[0]
  br = bl = H[1]
  cr = cl = H[2]
  dr = dl = H[3]
  er = el = H[4]

  // computation
  var t
  for (i = 0; i < 80; i += 1) {
    t = (al + M[offset + zl[i]]) | 0
    if (i < 16) {
      t += f1(bl, cl, dl) + hl[0]
    } else if (i < 32) {
      t += f2(bl, cl, dl) + hl[1]
    } else if (i < 48) {
      t += f3(bl, cl, dl) + hl[2]
    } else if (i < 64) {
      t += f4(bl, cl, dl) + hl[3]
    } else {// if (i<80) {
      t += f5(bl, cl, dl) + hl[4]
    }
    t = t | 0
    t = rotl(t, sl[i])
    t = (t + el) | 0
    al = el
    el = dl
    dl = rotl(cl, 10)
    cl = bl
    bl = t

    t = (ar + M[offset + zr[i]]) | 0
    if (i < 16) {
      t += f5(br, cr, dr) + hr[0]
    } else if (i < 32) {
      t += f4(br, cr, dr) + hr[1]
    } else if (i < 48) {
      t += f3(br, cr, dr) + hr[2]
    } else if (i < 64) {
      t += f2(br, cr, dr) + hr[3]
    } else {// if (i<80) {
      t += f1(br, cr, dr) + hr[4]
    }

    t = t | 0
    t = rotl(t, sr[i])
    t = (t + er) | 0
    ar = er
    er = dr
    dr = rotl(cr, 10)
    cr = br
    br = t
  }

  // intermediate hash value
  t = (H[1] + cl + dr) | 0
  H[1] = (H[2] + dl + er) | 0
  H[2] = (H[3] + el + ar) | 0
  H[3] = (H[4] + al + br) | 0
  H[4] = (H[0] + bl + cr) | 0
  H[0] = t
}

function f1 (x, y, z) {
  return ((x) ^ (y) ^ (z))
}

function f2 (x, y, z) {
  return (((x) & (y)) | ((~x) & (z)))
}

function f3 (x, y, z) {
  return (((x) | (~(y))) ^ (z))
}

function f4 (x, y, z) {
  return (((x) & (z)) | ((y) & (~(z))))
}

function f5 (x, y, z) {
  return ((x) ^ ((y) | (~(z))))
}

function rotl (x, n) {
  return (x << n) | (x >>> (32 - n))
}

function ripemd160 (message) {
  var H = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0]

  if (typeof message === 'string') {
    message = new Buffer(message, 'utf8')
  }

  var m = bytesToWords(message)

  var nBitsLeft = message.length * 8
  var nBitsTotal = message.length * 8

  // Add padding
  m[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32)
  m[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (
    (((nBitsTotal << 8) | (nBitsTotal >>> 24)) & 0x00ff00ff) |
    (((nBitsTotal << 24) | (nBitsTotal >>> 8)) & 0xff00ff00)
  )

  for (var i = 0; i < m.length; i += 16) {
    processBlock(H, m, i)
  }

  // swap endian
  for (i = 0; i < 5; i++) {
    // shortcut
    var H_i = H[i]

    // Swap
    H[i] = (((H_i << 8) | (H_i >>> 24)) & 0x00ff00ff) |
      (((H_i << 24) | (H_i >>> 8)) & 0xff00ff00)
  }

  var digestbytes = wordsToBytes(H)
  return new Buffer(digestbytes)
}

module.exports = ripemd160

}).call(this,require("buffer").Buffer)
},{"buffer":18}],145:[function(require,module,exports){
(function (Buffer){
// prototype class for hash functions
function Hash (blockSize, finalSize) {
  this._block = new Buffer(blockSize)
  this._finalSize = finalSize
  this._blockSize = blockSize
  this._len = 0
  this._s = 0
}

Hash.prototype.update = function (data, enc) {
  if (typeof data === 'string') {
    enc = enc || 'utf8'
    data = new Buffer(data, enc)
  }

  var l = this._len += data.length
  var s = this._s || 0
  var f = 0
  var buffer = this._block

  while (s < l) {
    var t = Math.min(data.length, f + this._blockSize - (s % this._blockSize))
    var ch = (t - f)

    for (var i = 0; i < ch; i++) {
      buffer[(s % this._blockSize) + i] = data[i + f]
    }

    s += ch
    f += ch

    if ((s % this._blockSize) === 0) {
      this._update(buffer)
    }
  }
  this._s = s

  return this
}

Hash.prototype.digest = function (enc) {
  // Suppose the length of the message M, in bits, is l
  var l = this._len * 8

  // Append the bit 1 to the end of the message
  this._block[this._len % this._blockSize] = 0x80

  // and then k zero bits, where k is the smallest non-negative solution to the equation (l + 1 + k) === finalSize mod blockSize
  this._block.fill(0, this._len % this._blockSize + 1)

  if (l % (this._blockSize * 8) >= this._finalSize * 8) {
    this._update(this._block)
    this._block.fill(0)
  }

  // to this append the block which is equal to the number l written in binary
  // TODO: handle case where l is > Math.pow(2, 29)
  this._block.writeInt32BE(l, this._blockSize - 4)

  var hash = this._update(this._block) || this._hash()

  return enc ? hash.toString(enc) : hash
}

Hash.prototype._update = function () {
  throw new Error('_update must be implemented by subclass')
}

module.exports = Hash

}).call(this,require("buffer").Buffer)
},{"buffer":18}],146:[function(require,module,exports){
var exports = module.exports = function SHA (algorithm) {
  algorithm = algorithm.toLowerCase()

  var Algorithm = exports[algorithm]
  if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')

  return new Algorithm()
}

exports.sha = require('./sha')
exports.sha1 = require('./sha1')
exports.sha224 = require('./sha224')
exports.sha256 = require('./sha256')
exports.sha384 = require('./sha384')
exports.sha512 = require('./sha512')

},{"./sha":147,"./sha1":148,"./sha224":149,"./sha256":150,"./sha384":151,"./sha512":152}],147:[function(require,module,exports){
(function (Buffer){
/*
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
 * in FIPS PUB 180-1
 * This source code is derived from sha1.js of the same repository.
 * The difference between SHA-0 and SHA-1 is just a bitwise rotate left
 * operation was added.
 */

var inherits = require('inherits')
var Hash = require('./hash')

var W = new Array(80)

function Sha () {
  this.init()
  this._w = W

  Hash.call(this, 64, 56)
}

inherits(Sha, Hash)

Sha.prototype.init = function () {
  this._a = 0x67452301 | 0
  this._b = 0xefcdab89 | 0
  this._c = 0x98badcfe | 0
  this._d = 0x10325476 | 0
  this._e = 0xc3d2e1f0 | 0

  return this
}

/*
 * Bitwise rotate a 32-bit number to the left.
 */
function rol (num, cnt) {
  return (num << cnt) | (num >>> (32 - cnt))
}

Sha.prototype._update = function (M) {
  var W = this._w

  var a = this._a
  var b = this._b
  var c = this._c
  var d = this._d
  var e = this._e

  var j = 0
  var k

  /*
   * SHA-1 has a bitwise rotate left operation. But, SHA is not
   * function calcW() { return rol(W[j - 3] ^ W[j -  8] ^ W[j - 14] ^ W[j - 16], 1) }
   */
  function calcW () { return W[j - 3] ^ W[j - 8] ^ W[j - 14] ^ W[j - 16] }
  function loop (w, f) {
    W[j] = w

    var t = rol(a, 5) + f + e + w + k

    e = d
    d = c
    c = rol(b, 30)
    b = a
    a = t
    j++
  }

  k = 1518500249
  while (j < 16) loop(M.readInt32BE(j * 4), (b & c) | ((~b) & d))
  while (j < 20) loop(calcW(), (b & c) | ((~b) & d))
  k = 1859775393
  while (j < 40) loop(calcW(), b ^ c ^ d)
  k = -1894007588
  while (j < 60) loop(calcW(), (b & c) | (b & d) | (c & d))
  k = -899497514
  while (j < 80) loop(calcW(), b ^ c ^ d)

  this._a = (a + this._a) | 0
  this._b = (b + this._b) | 0
  this._c = (c + this._c) | 0
  this._d = (d + this._d) | 0
  this._e = (e + this._e) | 0
}

Sha.prototype._hash = function () {
  var H = new Buffer(20)

  H.writeInt32BE(this._a | 0, 0)
  H.writeInt32BE(this._b | 0, 4)
  H.writeInt32BE(this._c | 0, 8)
  H.writeInt32BE(this._d | 0, 12)
  H.writeInt32BE(this._e | 0, 16)

  return H
}

module.exports = Sha


}).call(this,require("buffer").Buffer)
},{"./hash":145,"buffer":18,"inherits":210}],148:[function(require,module,exports){
(function (Buffer){
/*
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
 * in FIPS PUB 180-1
 * Version 2.1a Copyright Paul Johnston 2000 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for details.
 */

var inherits = require('inherits')
var Hash = require('./hash')

var W = new Array(80)

function Sha1 () {
  this.init()
  this._w = W

  Hash.call(this, 64, 56)
}

inherits(Sha1, Hash)

Sha1.prototype.init = function () {
  this._a = 0x67452301 | 0
  this._b = 0xefcdab89 | 0
  this._c = 0x98badcfe | 0
  this._d = 0x10325476 | 0
  this._e = 0xc3d2e1f0 | 0

  return this
}

/*
 * Bitwise rotate a 32-bit number to the left.
 */
function rol (num, cnt) {
  return (num << cnt) | (num >>> (32 - cnt))
}

Sha1.prototype._update = function (M) {
  var W = this._w

  var a = this._a
  var b = this._b
  var c = this._c
  var d = this._d
  var e = this._e

  var j = 0
  var k

  function calcW () { return rol(W[j - 3] ^ W[j - 8] ^ W[j - 14] ^ W[j - 16], 1) }
  function loop (w, f) {
    W[j] = w

    var t = rol(a, 5) + f + e + w + k

    e = d
    d = c
    c = rol(b, 30)
    b = a
    a = t
    j++
  }

  k = 1518500249
  while (j < 16) loop(M.readInt32BE(j * 4), (b & c) | ((~b) & d))
  while (j < 20) loop(calcW(), (b & c) | ((~b) & d))
  k = 1859775393
  while (j < 40) loop(calcW(), b ^ c ^ d)
  k = -1894007588
  while (j < 60) loop(calcW(), (b & c) | (b & d) | (c & d))
  k = -899497514
  while (j < 80) loop(calcW(), b ^ c ^ d)

  this._a = (a + this._a) | 0
  this._b = (b + this._b) | 0
  this._c = (c + this._c) | 0
  this._d = (d + this._d) | 0
  this._e = (e + this._e) | 0
}

Sha1.prototype._hash = function () {
  var H = new Buffer(20)

  H.writeInt32BE(this._a | 0, 0)
  H.writeInt32BE(this._b | 0, 4)
  H.writeInt32BE(this._c | 0, 8)
  H.writeInt32BE(this._d | 0, 12)
  H.writeInt32BE(this._e | 0, 16)

  return H
}

module.exports = Sha1

}).call(this,require("buffer").Buffer)
},{"./hash":145,"buffer":18,"inherits":210}],149:[function(require,module,exports){
(function (Buffer){
/**
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
 * in FIPS 180-2
 * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 *
 */

var inherits = require('inherits')
var Sha256 = require('./sha256')
var Hash = require('./hash')

var W = new Array(64)

function Sha224 () {
  this.init()

  this._w = W // new Array(64)

  Hash.call(this, 64, 56)
}

inherits(Sha224, Sha256)

Sha224.prototype.init = function () {
  this._a = 0xc1059ed8 | 0
  this._b = 0x367cd507 | 0
  this._c = 0x3070dd17 | 0
  this._d = 0xf70e5939 | 0
  this._e = 0xffc00b31 | 0
  this._f = 0x68581511 | 0
  this._g = 0x64f98fa7 | 0
  this._h = 0xbefa4fa4 | 0

  return this
}

Sha224.prototype._hash = function () {
  var H = new Buffer(28)

  H.writeInt32BE(this._a, 0)
  H.writeInt32BE(this._b, 4)
  H.writeInt32BE(this._c, 8)
  H.writeInt32BE(this._d, 12)
  H.writeInt32BE(this._e, 16)
  H.writeInt32BE(this._f, 20)
  H.writeInt32BE(this._g, 24)

  return H
}

module.exports = Sha224

}).call(this,require("buffer").Buffer)
},{"./hash":145,"./sha256":150,"buffer":18,"inherits":210}],150:[function(require,module,exports){
(function (Buffer){
/**
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
 * in FIPS 180-2
 * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 *
 */

var inherits = require('inherits')
var Hash = require('./hash')

var K = [
  0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
  0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
  0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
  0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
  0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
  0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
  0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
  0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
  0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
  0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
  0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
  0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
  0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
  0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
  0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
  0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
]

var W = new Array(64)

function Sha256 () {
  this.init()

  this._w = W // new Array(64)

  Hash.call(this, 64, 56)
}

inherits(Sha256, Hash)

Sha256.prototype.init = function () {
  this._a = 0x6a09e667 | 0
  this._b = 0xbb67ae85 | 0
  this._c = 0x3c6ef372 | 0
  this._d = 0xa54ff53a | 0
  this._e = 0x510e527f | 0
  this._f = 0x9b05688c | 0
  this._g = 0x1f83d9ab | 0
  this._h = 0x5be0cd19 | 0

  return this
}

function Ch (x, y, z) {
  return z ^ (x & (y ^ z))
}

function Maj (x, y, z) {
  return (x & y) | (z & (x | y))
}

function Sigma0 (x) {
  return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
}

function Sigma1 (x) {
  return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
}

function Gamma0 (x) {
  return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
}

function Gamma1 (x) {
  return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
}

Sha256.prototype._update = function (M) {
  var W = this._w

  var a = this._a | 0
  var b = this._b | 0
  var c = this._c | 0
  var d = this._d | 0
  var e = this._e | 0
  var f = this._f | 0
  var g = this._g | 0
  var h = this._h | 0

  var j = 0

  function calcW () { return Gamma1(W[j - 2]) + W[j - 7] + Gamma0(W[j - 15]) + W[j - 16] }
  function loop (w) {
    W[j] = w

    var T1 = h + Sigma1(e) + Ch(e, f, g) + K[j] + w
    var T2 = Sigma0(a) + Maj(a, b, c)

    h = g
    g = f
    f = e
    e = d + T1
    d = c
    c = b
    b = a
    a = T1 + T2

    j++
  }

  while (j < 16) loop(M.readInt32BE(j * 4))
  while (j < 64) loop(calcW())

  this._a = (a + this._a) | 0
  this._b = (b + this._b) | 0
  this._c = (c + this._c) | 0
  this._d = (d + this._d) | 0
  this._e = (e + this._e) | 0
  this._f = (f + this._f) | 0
  this._g = (g + this._g) | 0
  this._h = (h + this._h) | 0
}

Sha256.prototype._hash = function () {
  var H = new Buffer(32)

  H.writeInt32BE(this._a, 0)
  H.writeInt32BE(this._b, 4)
  H.writeInt32BE(this._c, 8)
  H.writeInt32BE(this._d, 12)
  H.writeInt32BE(this._e, 16)
  H.writeInt32BE(this._f, 20)
  H.writeInt32BE(this._g, 24)
  H.writeInt32BE(this._h, 28)

  return H
}

module.exports = Sha256

}).call(this,require("buffer").Buffer)
},{"./hash":145,"buffer":18,"inherits":210}],151:[function(require,module,exports){
(function (Buffer){
var inherits = require('inherits')
var SHA512 = require('./sha512')
var Hash = require('./hash')

var W = new Array(160)

function Sha384 () {
  this.init()
  this._w = W

  Hash.call(this, 128, 112)
}

inherits(Sha384, SHA512)

Sha384.prototype.init = function () {
  this._a = 0xcbbb9d5d | 0
  this._b = 0x629a292a | 0
  this._c = 0x9159015a | 0
  this._d = 0x152fecd8 | 0
  this._e = 0x67332667 | 0
  this._f = 0x8eb44a87 | 0
  this._g = 0xdb0c2e0d | 0
  this._h = 0x47b5481d | 0

  this._al = 0xc1059ed8 | 0
  this._bl = 0x367cd507 | 0
  this._cl = 0x3070dd17 | 0
  this._dl = 0xf70e5939 | 0
  this._el = 0xffc00b31 | 0
  this._fl = 0x68581511 | 0
  this._gl = 0x64f98fa7 | 0
  this._hl = 0xbefa4fa4 | 0

  return this
}

Sha384.prototype._hash = function () {
  var H = new Buffer(48)

  function writeInt64BE (h, l, offset) {
    H.writeInt32BE(h, offset)
    H.writeInt32BE(l, offset + 4)
  }

  writeInt64BE(this._a, this._al, 0)
  writeInt64BE(this._b, this._bl, 8)
  writeInt64BE(this._c, this._cl, 16)
  writeInt64BE(this._d, this._dl, 24)
  writeInt64BE(this._e, this._el, 32)
  writeInt64BE(this._f, this._fl, 40)

  return H
}

module.exports = Sha384

}).call(this,require("buffer").Buffer)
},{"./hash":145,"./sha512":152,"buffer":18,"inherits":210}],152:[function(require,module,exports){
(function (Buffer){
var inherits = require('inherits')
var Hash = require('./hash')

var K = [
  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
]

var W = new Array(160)

function Sha512 () {
  this.init()
  this._w = W

  Hash.call(this, 128, 112)
}

inherits(Sha512, Hash)

Sha512.prototype.init = function () {
  this._a = 0x6a09e667 | 0
  this._b = 0xbb67ae85 | 0
  this._c = 0x3c6ef372 | 0
  this._d = 0xa54ff53a | 0
  this._e = 0x510e527f | 0
  this._f = 0x9b05688c | 0
  this._g = 0x1f83d9ab | 0
  this._h = 0x5be0cd19 | 0

  this._al = 0xf3bcc908 | 0
  this._bl = 0x84caa73b | 0
  this._cl = 0xfe94f82b | 0
  this._dl = 0x5f1d36f1 | 0
  this._el = 0xade682d1 | 0
  this._fl = 0x2b3e6c1f | 0
  this._gl = 0xfb41bd6b | 0
  this._hl = 0x137e2179 | 0

  return this
}

function Ch (x, y, z) {
  return z ^ (x & (y ^ z))
}

function Maj (x, y, z) {
  return (x & y) | (z & (x | y))
}

function Sigma0 (x, xl) {
  return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
}

function Sigma1 (x, xl) {
  return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
}

function Gamma0 (x, xl) {
  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
}

function Gamma0l (x, xl) {
  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
}

function Gamma1 (x, xl) {
  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
}

function Gamma1l (x, xl) {
  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
}

Sha512.prototype._update = function (M) {
  var W = this._w

  var a = this._a | 0
  var b = this._b | 0
  var c = this._c | 0
  var d = this._d | 0
  var e = this._e | 0
  var f = this._f | 0
  var g = this._g | 0
  var h = this._h | 0

  var al = this._al | 0
  var bl = this._bl | 0
  var cl = this._cl | 0
  var dl = this._dl | 0
  var el = this._el | 0
  var fl = this._fl | 0
  var gl = this._gl | 0
  var hl = this._hl | 0

  var i = 0
  var j = 0
  var Wi, Wil
  function calcW () {
    var x = W[j - 15 * 2]
    var xl = W[j - 15 * 2 + 1]
    var gamma0 = Gamma0(x, xl)
    var gamma0l = Gamma0l(xl, x)

    x = W[j - 2 * 2]
    xl = W[j - 2 * 2 + 1]
    var gamma1 = Gamma1(x, xl)
    var gamma1l = Gamma1l(xl, x)

    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
    var Wi7 = W[j - 7 * 2]
    var Wi7l = W[j - 7 * 2 + 1]

    var Wi16 = W[j - 16 * 2]
    var Wi16l = W[j - 16 * 2 + 1]

    Wil = gamma0l + Wi7l
    Wi = gamma0 + Wi7 + ((Wil >>> 0) < (gamma0l >>> 0) ? 1 : 0)
    Wil = Wil + gamma1l
    Wi = Wi + gamma1 + ((Wil >>> 0) < (gamma1l >>> 0) ? 1 : 0)
    Wil = Wil + Wi16l
    Wi = Wi + Wi16 + ((Wil >>> 0) < (Wi16l >>> 0) ? 1 : 0)
  }

  function loop () {
    W[j] = Wi
    W[j + 1] = Wil

    var maj = Maj(a, b, c)
    var majl = Maj(al, bl, cl)

    var sigma0h = Sigma0(a, al)
    var sigma0l = Sigma0(al, a)
    var sigma1h = Sigma1(e, el)
    var sigma1l = Sigma1(el, e)

    // t1 = h + sigma1 + ch + K[i] + W[i]
    var Ki = K[j]
    var Kil = K[j + 1]

    var ch = Ch(e, f, g)
    var chl = Ch(el, fl, gl)

    var t1l = hl + sigma1l
    var t1 = h + sigma1h + ((t1l >>> 0) < (hl >>> 0) ? 1 : 0)
    t1l = t1l + chl
    t1 = t1 + ch + ((t1l >>> 0) < (chl >>> 0) ? 1 : 0)
    t1l = t1l + Kil
    t1 = t1 + Ki + ((t1l >>> 0) < (Kil >>> 0) ? 1 : 0)
    t1l = t1l + Wil
    t1 = t1 + Wi + ((t1l >>> 0) < (Wil >>> 0) ? 1 : 0)

    // t2 = sigma0 + maj
    var t2l = sigma0l + majl
    var t2 = sigma0h + maj + ((t2l >>> 0) < (sigma0l >>> 0) ? 1 : 0)

    h = g
    hl = gl
    g = f
    gl = fl
    f = e
    fl = el
    el = (dl + t1l) | 0
    e = (d + t1 + ((el >>> 0) < (dl >>> 0) ? 1 : 0)) | 0
    d = c
    dl = cl
    c = b
    cl = bl
    b = a
    bl = al
    al = (t1l + t2l) | 0
    a = (t1 + t2 + ((al >>> 0) < (t1l >>> 0) ? 1 : 0)) | 0

    i++
    j += 2
  }

  while (i < 16) {
    Wi = M.readInt32BE(j * 4)
    Wil = M.readInt32BE(j * 4 + 4)

    loop()
  }

  while (i < 80) {
    calcW()
    loop()
  }

  this._al = (this._al + al) | 0
  this._bl = (this._bl + bl) | 0
  this._cl = (this._cl + cl) | 0
  this._dl = (this._dl + dl) | 0
  this._el = (this._el + el) | 0
  this._fl = (this._fl + fl) | 0
  this._gl = (this._gl + gl) | 0
  this._hl = (this._hl + hl) | 0

  this._a = (this._a + a + ((this._al >>> 0) < (al >>> 0) ? 1 : 0)) | 0
  this._b = (this._b + b + ((this._bl >>> 0) < (bl >>> 0) ? 1 : 0)) | 0
  this._c = (this._c + c + ((this._cl >>> 0) < (cl >>> 0) ? 1 : 0)) | 0
  this._d = (this._d + d + ((this._dl >>> 0) < (dl >>> 0) ? 1 : 0)) | 0
  this._e = (this._e + e + ((this._el >>> 0) < (el >>> 0) ? 1 : 0)) | 0
  this._f = (this._f + f + ((this._fl >>> 0) < (fl >>> 0) ? 1 : 0)) | 0
  this._g = (this._g + g + ((this._gl >>> 0) < (gl >>> 0) ? 1 : 0)) | 0
  this._h = (this._h + h + ((this._hl >>> 0) < (hl >>> 0) ? 1 : 0)) | 0
}

Sha512.prototype._hash = function () {
  var H = new Buffer(64)

  function writeInt64BE (h, l, offset) {
    H.writeInt32BE(h, offset)
    H.writeInt32BE(l, offset + 4)
  }

  writeInt64BE(this._a, this._al, 0)
  writeInt64BE(this._b, this._bl, 8)
  writeInt64BE(this._c, this._cl, 16)
  writeInt64BE(this._d, this._dl, 24)
  writeInt64BE(this._e, this._el, 32)
  writeInt64BE(this._f, this._fl, 40)
  writeInt64BE(this._g, this._gl, 48)
  writeInt64BE(this._h, this._hl, 56)

  return H
}

module.exports = Sha512

}).call(this,require("buffer").Buffer)
},{"./hash":145,"buffer":18,"inherits":210}],153:[function(require,module,exports){
(function (Buffer){
'use strict';
var createHash = require('create-hash/browser');
var inherits = require('inherits')

var Transform = require('stream').Transform

var ZEROS = new Buffer(128)
ZEROS.fill(0)

function Hmac(alg, key) {
  Transform.call(this)
  alg = alg.toLowerCase()
  if (typeof key === 'string') {
    key = new Buffer(key)
  }

  var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64

  this._alg = alg
  this._key = key

  if (key.length > blocksize) {
    key = createHash(alg).update(key).digest()

  } else if (key.length < blocksize) {
    key = Buffer.concat([key, ZEROS], blocksize)
  }

  var ipad = this._ipad = new Buffer(blocksize)
  var opad = this._opad = new Buffer(blocksize)

  for (var i = 0; i < blocksize; i++) {
    ipad[i] = key[i] ^ 0x36
    opad[i] = key[i] ^ 0x5C
  }

  this._hash = createHash(alg).update(ipad)
}

inherits(Hmac, Transform)

Hmac.prototype.update = function (data, enc) {
  this._hash.update(data, enc)

  return this
}

Hmac.prototype._transform = function (data, _, next) {
  this._hash.update(data)

  next()
}

Hmac.prototype._flush = function (next) {
  this.push(this.digest())

  next()
}

Hmac.prototype.digest = function (enc) {
  var h = this._hash.digest()

  return createHash(this._alg).update(this._opad).update(h).digest(enc)
}

module.exports = function createHmac(alg, key) {
  return new Hmac(alg, key)
}

}).call(this,require("buffer").Buffer)
},{"buffer":18,"create-hash/browser":140,"inherits":210,"stream":233}],154:[function(require,module,exports){
(function (Buffer){
var generatePrime = require('./lib/generatePrime');
var primes = require('./lib/primes');

var DH = require('./lib/dh');

function getDiffieHellman(mod) {
  var prime = new Buffer(primes[mod].prime, 'hex');
  var gen = new Buffer(primes[mod].gen, 'hex');

  return new DH(prime, gen);
}

function createDiffieHellman(prime, enc, generator, genc) {
  if (Buffer.isBuffer(enc) || (typeof enc === 'string' && ['hex', 'binary', 'base64'].indexOf(enc) === -1)) {
    genc = generator;
    generator = enc;
    enc = undefined;
  }

  enc = enc || 'binary';
  genc = genc || 'binary';
  generator = generator || new Buffer([2]);

  if (!Buffer.isBuffer(generator)) {
    generator = new Buffer(generator, genc);
  }

  if (typeof prime === 'number') {
    return new DH(generatePrime(prime, generator), generator, true);
  }

  if (!Buffer.isBuffer(prime)) {
    prime = new Buffer(prime, enc);
  }

  return new DH(prime, generator, true);
}

exports.DiffieHellmanGroup = exports.createDiffieHellmanGroup = exports.getDiffieHellman = getDiffieHellman;
exports.createDiffieHellman = exports.DiffieHellman = createDiffieHellman;

}).call(this,require("buffer").Buffer)
},{"./lib/dh":155,"./lib/generatePrime":156,"./lib/primes":157,"buffer":18}],155:[function(require,module,exports){
(function (Buffer){
var BN = require('bn.js');
var MillerRabin = require('miller-rabin');
var millerRabin = new MillerRabin();
var TWENTYFOUR = new BN(24);
var ELEVEN = new BN(11);
var TEN = new BN(10);
var THREE = new BN(3);
var SEVEN = new BN(7);
var primes = require('./generatePrime');
var randomBytes = require('randombytes');
module.exports = DH;

function setPublicKey(pub, enc) {
  enc = enc || 'utf8';
  if (!Buffer.isBuffer(pub)) {
    pub = new Buffer(pub, enc);
  }
  this._pub = new BN(pub);
  return this;
}

function setPrivateKey(priv, enc) {
  enc = enc || 'utf8';
  if (!Buffer.isBuffer(priv)) {
    priv = new Buffer(priv, enc);
  }
  this._priv = new BN(priv);
  return this;
}

var primeCache = {};
function checkPrime(prime, generator) {
  var gen = generator.toString('hex');
  var hex = [gen, prime.toString(16)].join('_');
  if (hex in primeCache) {
    return primeCache[hex];
  }
  var error = 0;
  
  if (prime.isEven() ||
    !primes.simpleSieve ||
    !primes.fermatTest(prime) ||
    !millerRabin.test(prime)) {
    //not a prime so +1
    error += 1;
    
    if (gen === '02' || gen === '05') {
      // we'd be able to check the generator
      // it would fail so +8
      error += 8;
    } else {
      //we wouldn't be able to test the generator
      // so +4
      error += 4;
    }
    primeCache[hex] = error;
    return error;
  }
  if (!millerRabin.test(prime.shrn(1))) {
    //not a safe prime
    error += 2;
  }
  var rem;
  switch (gen) {
    case '02':
      if (prime.mod(TWENTYFOUR).cmp(ELEVEN)) {
        // unsuidable generator
        error += 8;
      }
      break;
    case '05':
      rem = prime.mod(TEN);
      if (rem.cmp(THREE) && rem.cmp(SEVEN)) {
        // prime mod 10 needs to equal 3 or 7
        error += 8;
      } 
      break;
    default: 
      error += 4;
  }
  primeCache[hex] = error;
  return error;
}

function defineError (self, error) {
  try {
    Object.defineProperty(self, 'verifyError', {
      enumerable: true,
      value: error,
      writable: false
    });
  } catch(e) {
    self.verifyError = error;
  }
}
function DH(prime, generator, malleable) {
  this.setGenerator(generator);
  this.__prime = new BN(prime);
  this._prime = BN.mont(this.__prime);
  this._primeLen = prime.length;
  this._pub = void 0;
  this._priv = void 0;
  
  if (malleable) {
    this.setPublicKey = setPublicKey;
    this.setPrivateKey = setPrivateKey;
    defineError(this, checkPrime(this.__prime, generator));
  } else {
    defineError(this, 8);
  }
}

DH.prototype.generateKeys = function () {
  if (!this._priv) {
    this._priv = new BN(randomBytes(this._primeLen));
  }
  this._pub = this._gen.toRed(this._prime).redPow(this._priv).fromRed();
  return this.getPublicKey();
};

DH.prototype.computeSecret = function (other) {
  other = new BN(other);
  other = other.toRed(this._prime);
  var secret = other.redPow(this._priv).fromRed();
  var out = new Buffer(secret.toArray());
  var prime = this.getPrime();
  if (out.length < prime.length) {
    var front = new Buffer(prime.length - out.length);
    front.fill(0);
    out = Buffer.concat([front, out]);
  }
  return out;
};

DH.prototype.getPublicKey = function getPublicKey(enc) {
  return formatReturnValue(this._pub, enc);
};

DH.prototype.getPrivateKey = function getPrivateKey(enc) {
  return formatReturnValue(this._priv, enc);
};

DH.prototype.getPrime = function (enc) {
  return formatReturnValue(this.__prime, enc);
};

DH.prototype.getGenerator = function (enc) {
  return formatReturnValue(this._gen, enc);
};

DH.prototype.setGenerator = function (gen, enc) {
  enc = enc || 'utf8';
  if (!Buffer.isBuffer(gen)) {
    gen = new Buffer(gen, enc);
  }
  this._gen = new BN(gen);
  return this;
};

function formatReturnValue(bn, enc) {
  var buf = new Buffer(bn.toArray());
  if (!enc) {
    return buf;
  } else {
    return buf.toString(enc);
  }
}
}).call(this,require("buffer").Buffer)
},{"./generatePrime":156,"bn.js":158,"buffer":18,"miller-rabin":159,"randombytes":207}],156:[function(require,module,exports){
var randomBytes = require('randombytes');
module.exports = findPrime;
findPrime.simpleSieve = simpleSieve;
findPrime.fermatTest = fermatTest;
var BN = require('bn.js');
var TWENTYFOUR = new BN(24);
var MillerRabin = require('miller-rabin');
var millerRabin = new MillerRabin();
var ONE = new BN(1);
var TWO = new BN(2);
var FIVE = new BN(5);
var SIXTEEN = new BN(16);
var EIGHT = new BN(8);
var TEN = new BN(10);
var THREE = new BN(3);
var SEVEN = new BN(7);
var ELEVEN = new BN(11);
var FOUR = new BN(4);
var TWELVE = new BN(12);
var primes = null;

function _getPrimes() {
  if (primes !== null)
    return primes;

  var limit = 0x100000;
  var res = [];
  res[0] = 2;
  for (var i = 1, k = 3; k < limit; k += 2) {
    var sqrt = Math.ceil(Math.sqrt(k));
    for (var j = 0; j < i && res[j] <= sqrt; j++)
      if (k % res[j] === 0)
        break;

    if (i !== j && res[j] <= sqrt)
      continue;

    res[i++] = k;
  }
  primes = res;
  return res;
}

function simpleSieve(p) {
  var primes = _getPrimes();

  for (var i = 0; i < primes.length; i++)
    if (p.modn(primes[i]) === 0) {
      if (p.cmpn(primes[i]) === 0) {
        return true;
      } else {
        return false;
      }
    }

  return true;
}

function fermatTest(p) {
  var red = BN.mont(p);
  return TWO.toRed(red).redPow(p.subn(1)).fromRed().cmpn(1) === 0;
}

function findPrime(bits, gen) {
  if (bits < 16) {
    // this is what openssl does
    if (gen === 2 || gen === 5) {
      return new BN([0x8c, 0x7b]);
    } else {
      return new BN([0x8c, 0x27]);
    }
  }
  gen = new BN(gen);
  var runs, comp;
  function generateRandom(bits) {
    runs = -1;
    var out = new BN(randomBytes(Math.ceil(bits / 8)));
    while (out.bitLength() > bits) {
      out.ishrn(1);
    }
    if (out.isEven()) {
      out.iadd(ONE);
    }
    if (!out.testn(1)) {
      out.iadd(TWO);
    }
    if (!gen.cmp(TWO)) {
      while (out.mod(TWENTYFOUR).cmp(ELEVEN)) {
        out.iadd(FOUR);
      }
      comp = {
        major: [TWENTYFOUR],
        minor: [TWELVE]
      };
    } else if (!gen.cmp(FIVE)) {
      rem = out.mod(TEN);
      while (rem.cmp(THREE)) {
        out.iadd(FOUR);
        rem = out.mod(TEN);
      }
      comp = {
        major: [FOUR, SIXTEEN],
        minor: [TWO, EIGHT]
      };
    } else {
      comp = {
        major: [FOUR],
        minor: [TWO]
      };
    }
    return out;
  }
  var num = generateRandom(bits);

  var n2 = num.shrn(1);

  while (true) {
    while (num.bitLength() > bits) {
      num = generateRandom(bits);
      n2 = num.shrn(1);
    }
    runs++;
    if (simpleSieve(n2) &&  simpleSieve(num) &&
      fermatTest(n2) &&  fermatTest(num) &&
      millerRabin.test(n2) && millerRabin.test(num)) {
      return num;
    }
    num.iadd(comp.major[runs%comp.major.length]);
    n2.iadd(comp.minor[runs%comp.minor.length]);
  }

}
},{"bn.js":158,"miller-rabin":159,"randombytes":207}],157:[function(require,module,exports){
module.exports={
    "modp1": {
        "gen": "02",
        "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a3620ffffffffffffffff"
    },
    "modp2": {
        "gen": "02",
        "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece65381ffffffffffffffff"
    },
    "modp5": {
        "gen": "02",
        "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca237327ffffffffffffffff"
    },
    "modp14": {
        "gen": "02",
        "prime": "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"
    },
    "modp15": {
        "gen": "02",
        "prime": "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"
    },
    "modp16": {
        "gen": "02",
        "prime": "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"
    },
    "modp17": {
        "gen": "02",
        "prime": "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"
    },
    "modp18": {
        "gen": "02",
        "prime": "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"
    }
}
},{}],158:[function(require,module,exports){
arguments[4][55][0].apply(exports,arguments)
},{"dup":55}],159:[function(require,module,exports){
var bn = require('bn.js');
var brorand = require('brorand');

function MillerRabin(rand) {
  this.rand = rand || new brorand.Rand();
}
module.exports = MillerRabin;

MillerRabin.create = function create(rand) {
  return new MillerRabin(rand);
};

MillerRabin.prototype._rand = function _rand(n) {
  var len = n.bitLength();
  var buf = this.rand.generate(Math.ceil(len / 8));

  // Set low bits
  buf[0] |= 3;

  // Mask high bits
  var mask = len & 0x7;
  if (mask !== 0)
    buf[buf.length - 1] >>= 7 - mask;

  return new bn(buf);
}

MillerRabin.prototype.test = function test(n, k, cb) {
  var len = n.bitLength();
  var red = bn.mont(n);
  var rone = new bn(1).toRed(red);

  if (!k)
    k = Math.max(1, (len / 48) | 0);

  // Find d and s, (n - 1) = (2 ^ s) * d;
  var n1 = n.subn(1);
  var n2 = n1.subn(1);
  for (var s = 0; !n1.testn(s); s++) {}
  var d = n.shrn(s);

  var rn1 = n1.toRed(red);

  var prime = true;
  for (; k > 0; k--) {
    var a = this._rand(n2);
    if (cb)
      cb(a);

    var x = a.toRed(red).redPow(d);
    if (x.cmp(rone) === 0 || x.cmp(rn1) === 0)
      continue;

    for (var i = 1; i < s; i++) {
      x = x.redSqr();

      if (x.cmp(rone) === 0)
        return false;
      if (x.cmp(rn1) === 0)
        break;
    }

    if (i === s)
      return false;
  }

  return prime;
};

MillerRabin.prototype.getDivisor = function getDivisor(n, k) {
  var len = n.bitLength();
  var red = bn.mont(n);
  var rone = new bn(1).toRed(red);

  if (!k)
    k = Math.max(1, (len / 48) | 0);

  // Find d and s, (n - 1) = (2 ^ s) * d;
  var n1 = n.subn(1);
  var n2 = n1.subn(1);
  for (var s = 0; !n1.testn(s); s++) {}
  var d = n.shrn(s);

  var rn1 = n1.toRed(red);

  for (; k > 0; k--) {
    var a = this._rand(n2);

    var g = n.gcd(a);
    if (g.cmpn(1) !== 0)
      return g;

    var x = a.toRed(red).redPow(d);
    if (x.cmp(rone) === 0 || x.cmp(rn1) === 0)
      continue;

    for (var i = 1; i < s; i++) {
      x = x.redSqr();

      if (x.cmp(rone) === 0)
        return x.fromRed().subn(1).gcd(n);
      if (x.cmp(rn1) === 0)
        break;
    }

    if (i === s) {
      x = x.redSqr();
      return x.fromRed().subn(1).gcd(n);
    }
  }

  return false;
};

},{"bn.js":158,"brorand":160}],160:[function(require,module,exports){
arguments[4][70][0].apply(exports,arguments)
},{"dup":70}],161:[function(require,module,exports){
(function (Buffer){
var createHmac = require('create-hmac')
var MAX_ALLOC = Math.pow(2, 30) - 1 // default in iojs

exports.pbkdf2 = pbkdf2
function pbkdf2 (password, salt, iterations, keylen, digest, callback) {
  if (typeof digest === 'function') {
    callback = digest
    digest = undefined
  }

  if (typeof callback !== 'function') {
    throw new Error('No callback provided to pbkdf2')
  }

  var result = pbkdf2Sync(password, salt, iterations, keylen, digest)
  setTimeout(function () {
    callback(undefined, result)
  })
}

exports.pbkdf2Sync = pbkdf2Sync
function pbkdf2Sync (password, salt, iterations, keylen, digest) {
  if (typeof iterations !== 'number') {
    throw new TypeError('Iterations not a number')
  }

  if (iterations < 0) {
    throw new TypeError('Bad iterations')
  }

  if (typeof keylen !== 'number') {
    throw new TypeError('Key length not a number')
  }

  if (keylen < 0 || keylen > MAX_ALLOC) {
    throw new TypeError('Bad key length')
  }

  digest = digest || 'sha1'

  if (!Buffer.isBuffer(password)) password = new Buffer(password, 'binary')
  if (!Buffer.isBuffer(salt)) salt = new Buffer(salt, 'binary')

  var hLen
  var l = 1
  var DK = new Buffer(keylen)
  var block1 = new Buffer(salt.length + 4)
  salt.copy(block1, 0, 0, salt.length)

  var r
  var T

  for (var i = 1; i <= l; i++) {
    block1.writeUInt32BE(i, salt.length)
    var U = createHmac(digest, password).update(block1).digest()

    if (!hLen) {
      hLen = U.length
      T = new Buffer(hLen)
      l = Math.ceil(keylen / hLen)
      r = keylen - (l - 1) * hLen
    }

    U.copy(T, 0, 0, hLen)

    for (var j = 1; j < iterations; j++) {
      U = createHmac(digest, password).update(U).digest()

      for (var k = 0; k < hLen; k++) {
        T[k] ^= U[k]
      }
    }

    var destPos = (i - 1) * hLen
    var len = (i === l ? r : hLen)
    T.copy(DK, destPos, 0, len)
  }

  return DK
}

}).call(this,require("buffer").Buffer)
},{"buffer":18,"create-hmac":153}],162:[function(require,module,exports){
exports.publicEncrypt = require('./publicEncrypt');
exports.privateDecrypt = require('./privateDecrypt');

exports.privateEncrypt = function privateEncrypt(key, buf) {
  return exports.publicEncrypt(key, buf, true);
};

exports.publicDecrypt = function publicDecrypt(key, buf) {
  return exports.privateDecrypt(key, buf, true);
};
},{"./privateDecrypt":203,"./publicEncrypt":204}],163:[function(require,module,exports){
(function (Buffer){
var createHash = require('create-hash');
module.exports = function (seed, len) {
  var t = new Buffer('');
  var  i = 0, c;
  while (t.length < len) {
    c = i2ops(i++);
    t = Buffer.concat([t, createHash('sha1').update(seed).update(c).digest()]);
  }
  return t.slice(0, len);
};

function i2ops(c) {
  var out = new Buffer(4);
  out.writeUInt32BE(c,0);
  return out;
}
}).call(this,require("buffer").Buffer)
},{"buffer":18,"create-hash":140}],164:[function(require,module,exports){
arguments[4][55][0].apply(exports,arguments)
},{"dup":55}],165:[function(require,module,exports){
arguments[4][56][0].apply(exports,arguments)
},{"bn.js":164,"buffer":18,"dup":56,"randombytes":207}],166:[function(require,module,exports){
arguments[4][78][0].apply(exports,arguments)
},{"dup":78}],167:[function(require,module,exports){
arguments[4][79][0].apply(exports,arguments)
},{"asn1.js":170,"dup":79}],168:[function(require,module,exports){
arguments[4][80][0].apply(exports,arguments)
},{"browserify-aes":187,"buffer":18,"dup":80,"evp_bytestokey":202}],169:[function(require,module,exports){
arguments[4][81][0].apply(exports,arguments)
},{"./aesid.json":166,"./asn1":167,"./fixProc":168,"browserify-aes":187,"buffer":18,"dup":81,"pbkdf2":161}],170:[function(require,module,exports){
arguments[4][82][0].apply(exports,arguments)
},{"./asn1/api":171,"./asn1/base":173,"./asn1/constants":177,"./asn1/decoders":179,"./asn1/encoders":182,"bn.js":164,"dup":82}],171:[function(require,module,exports){
arguments[4][83][0].apply(exports,arguments)
},{"../asn1":170,"dup":83,"inherits":210,"vm":248}],172:[function(require,module,exports){
arguments[4][84][0].apply(exports,arguments)
},{"../base":173,"buffer":18,"dup":84,"inherits":210}],173:[function(require,module,exports){
arguments[4][85][0].apply(exports,arguments)
},{"./buffer":172,"./node":174,"./reporter":175,"dup":85}],174:[function(require,module,exports){
arguments[4][86][0].apply(exports,arguments)
},{"../base":173,"dup":86,"minimalistic-assert":184}],175:[function(require,module,exports){
arguments[4][87][0].apply(exports,arguments)
},{"dup":87,"inherits":210}],176:[function(require,module,exports){
arguments[4][88][0].apply(exports,arguments)
},{"../constants":177,"dup":88}],177:[function(require,module,exports){
arguments[4][89][0].apply(exports,arguments)
},{"./der":176,"dup":89}],178:[function(require,module,exports){
arguments[4][90][0].apply(exports,arguments)
},{"../../asn1":170,"dup":90,"inherits":210}],179:[function(require,module,exports){
arguments[4][91][0].apply(exports,arguments)
},{"./der":178,"./pem":180,"dup":91}],180:[function(require,module,exports){
arguments[4][92][0].apply(exports,arguments)
},{"../../asn1":170,"./der":178,"buffer":18,"dup":92,"inherits":210}],181:[function(require,module,exports){
arguments[4][93][0].apply(exports,arguments)
},{"../../asn1":170,"buffer":18,"dup":93,"inherits":210}],182:[function(require,module,exports){
arguments[4][94][0].apply(exports,arguments)
},{"./der":181,"./pem":183,"dup":94}],183:[function(require,module,exports){
arguments[4][95][0].apply(exports,arguments)
},{"../../asn1":170,"./der":181,"buffer":18,"dup":95,"inherits":210}],184:[function(require,module,exports){
arguments[4][50][0].apply(exports,arguments)
},{"dup":50}],185:[function(require,module,exports){
arguments[4][24][0].apply(exports,arguments)
},{"buffer":18,"dup":24}],186:[function(require,module,exports){
arguments[4][25][0].apply(exports,arguments)
},{"./aes":185,"./ghash":190,"buffer":18,"buffer-xor":199,"cipher-base":200,"dup":25,"inherits":210}],187:[function(require,module,exports){
arguments[4][26][0].apply(exports,arguments)
},{"./decrypter":188,"./encrypter":189,"./modes":191,"dup":26}],188:[function(require,module,exports){
arguments[4][27][0].apply(exports,arguments)
},{"./aes":185,"./authCipher":186,"./modes":191,"./modes/cbc":192,"./modes/cfb":193,"./modes/cfb1":194,"./modes/cfb8":195,"./modes/ctr":196,"./modes/ecb":197,"./modes/ofb":198,"./streamCipher":201,"buffer":18,"cipher-base":200,"dup":27,"evp_bytestokey":202,"inherits":210}],189:[function(require,module,exports){
arguments[4][28][0].apply(exports,arguments)
},{"./aes":185,"./authCipher":186,"./modes":191,"./modes/cbc":192,"./modes/cfb":193,"./modes/cfb1":194,"./modes/cfb8":195,"./modes/ctr":196,"./modes/ecb":197,"./modes/ofb":198,"./streamCipher":201,"buffer":18,"cipher-base":200,"dup":28,"evp_bytestokey":202,"inherits":210}],190:[function(require,module,exports){
arguments[4][29][0].apply(exports,arguments)
},{"buffer":18,"dup":29}],191:[function(require,module,exports){
arguments[4][30][0].apply(exports,arguments)
},{"dup":30}],192:[function(require,module,exports){
arguments[4][31][0].apply(exports,arguments)
},{"buffer-xor":199,"dup":31}],193:[function(require,module,exports){
arguments[4][32][0].apply(exports,arguments)
},{"buffer":18,"buffer-xor":199,"dup":32}],194:[function(require,module,exports){
arguments[4][33][0].apply(exports,arguments)
},{"buffer":18,"dup":33}],195:[function(require,module,exports){
arguments[4][34][0].apply(exports,arguments)
},{"buffer":18,"dup":34}],196:[function(require,module,exports){
arguments[4][35][0].apply(exports,arguments)
},{"buffer":18,"buffer-xor":199,"dup":35}],197:[function(require,module,exports){
arguments[4][36][0].apply(exports,arguments)
},{"dup":36}],198:[function(require,module,exports){
arguments[4][37][0].apply(exports,arguments)
},{"buffer":18,"buffer-xor":199,"dup":37}],199:[function(require,module,exports){
arguments[4][38][0].apply(exports,arguments)
},{"buffer":18,"dup":38}],200:[function(require,module,exports){
arguments[4][39][0].apply(exports,arguments)
},{"buffer":18,"dup":39,"inherits":210,"stream":233,"string_decoder":243}],201:[function(require,module,exports){
arguments[4][40][0].apply(exports,arguments)
},{"./aes":185,"buffer":18,"cipher-base":200,"dup":40,"inherits":210}],202:[function(require,module,exports){
arguments[4][51][0].apply(exports,arguments)
},{"buffer":18,"create-hash/md5":142,"dup":51}],203:[function(require,module,exports){
(function (Buffer){
var parseKeys = require('parse-asn1');
var mgf = require('./mgf');
var xor = require('./xor');
var bn = require('bn.js');
var crt = require('browserify-rsa');
var createHash = require('create-hash');
var withPublic = require('./withPublic');
module.exports = function privateDecrypt(private_key, enc, reverse) {
  var padding;
  if (private_key.padding) {
    padding = private_key.padding;
  } else if (reverse) {
    padding = 1;
  } else {
    padding = 4;
  }
  
  var key = parseKeys(private_key);
  var k = key.modulus.byteLength();
  if (enc.length > k || new bn(enc).cmp(key.modulus) >= 0) {
    throw new Error('decryption error');
  }
  var msg;
  if (reverse) {
    msg = withPublic(new bn(enc), key);
  } else {
    msg = crt(enc, key);
  }
  var zBuffer = new Buffer(k - msg.length);
  zBuffer.fill(0);
  msg = Buffer.concat([zBuffer, msg], k);
  if (padding === 4) {
    return oaep(key, msg);
  } else if (padding === 1) {
    return pkcs1(key, msg, reverse);
  } else if (padding === 3) {
    return msg;
  } else {
    throw new Error('unknown padding');
  }
};

function oaep(key, msg){
  var n = key.modulus;
  var k = key.modulus.byteLength();
  var mLen = msg.length;
  var iHash = createHash('sha1').update(new Buffer('')).digest();
  var hLen = iHash.length;
  var hLen2 = 2 * hLen;
  if (msg[0] !== 0) {
    throw new Error('decryption error');
  }
  var maskedSeed = msg.slice(1, hLen + 1);
  var maskedDb =  msg.slice(hLen + 1);
  var seed = xor(maskedSeed, mgf(maskedDb, hLen));
  var db = xor(maskedDb, mgf(seed, k - hLen - 1));
  if (compare(iHash, db.slice(0, hLen))) {
    throw new Error('decryption error');
  }
  var i = hLen;
  while (db[i] === 0) {
    i++;
  }
  if (db[i++] !== 1) {
    throw new Error('decryption error');
  }
  return db.slice(i);
}

function pkcs1(key, msg, reverse){
  var p1 = msg.slice(0, 2);
  var i = 2;
  var status = 0;
  while (msg[i++] !== 0) {
    if (i >= msg.length) {
      status++;
      break;
    }
  }
  var ps = msg.slice(2, i - 1);
  var p2 = msg.slice(i - 1, i);

  if ((p1.toString('hex') !== '0002' && !reverse) || (p1.toString('hex') !== '0001' && reverse)){
    status++;
  }
  if (ps.length < 8) {
    status++;
  }
  if (status) {
    throw new Error('decryption error');
  }
  return  msg.slice(i);
}
function compare(a, b){
  a = new Buffer(a);
  b = new Buffer(b);
  var dif = 0;
  var len = a.length;
  if (a.length !== b.length) {
    dif++;
    len = Math.min(a.length, b.length);
  }
  var i = -1;
  while (++i < len) {
    dif += (a[i] ^ b[i]);
  }
  return dif;
}
}).call(this,require("buffer").Buffer)
},{"./mgf":163,"./withPublic":205,"./xor":206,"bn.js":164,"browserify-rsa":165,"buffer":18,"create-hash":140,"parse-asn1":169}],204:[function(require,module,exports){
(function (Buffer){
var parseKeys = require('parse-asn1');
var randomBytes = require('randombytes');
var createHash = require('create-hash');
var mgf = require('./mgf');
var xor = require('./xor');
var bn = require('bn.js');
var withPublic = require('./withPublic');
var crt = require('browserify-rsa');

var constants = {
  RSA_PKCS1_OAEP_PADDING: 4,
  RSA_PKCS1_PADDIN: 1,
  RSA_NO_PADDING: 3
};

module.exports = function publicEncrypt(public_key, msg, reverse) {
  var padding;
  if (public_key.padding) {
    padding = public_key.padding;
  } else if (reverse) {
    padding = 1;
  } else {
    padding = 4;
  }
  var key = parseKeys(public_key);
  var paddedMsg;
  if (padding === 4) {
    paddedMsg = oaep(key, msg);
  } else if (padding === 1) {
    paddedMsg = pkcs1(key, msg, reverse);
  } else if (padding === 3) {
    paddedMsg = new bn(msg);
    if (paddedMsg.cmp(key.modulus) >= 0) {
      throw new Error('data too long for modulus');
    }
  } else {
    throw new Error('unknown padding');
  }
  if (reverse) {
    return crt(paddedMsg, key);
  } else {
    return withPublic(paddedMsg, key);
  }
};

function oaep(key, msg){
  var k = key.modulus.byteLength();
  var mLen = msg.length;
  var iHash = createHash('sha1').update(new Buffer('')).digest();
  var hLen = iHash.length;
  var hLen2 = 2 * hLen;
  if (mLen > k - hLen2 - 2) {
    throw new Error('message too long');
  }
  var ps = new Buffer(k - mLen - hLen2 - 2);
  ps.fill(0);
  var dblen = k - hLen - 1;
  var seed = randomBytes(hLen);
  var maskedDb = xor(Buffer.concat([iHash, ps, new Buffer([1]), msg], dblen), mgf(seed, dblen));
  var maskedSeed = xor(seed, mgf(maskedDb, hLen));
  return new bn(Buffer.concat([new Buffer([0]), maskedSeed, maskedDb], k));
}
function pkcs1(key, msg, reverse){
  var mLen = msg.length;
  var k = key.modulus.byteLength();
  if (mLen > k - 11) {
    throw new Error('message too long');
  }
  var ps;
  if (reverse) {
    ps = new Buffer(k - mLen - 3);
    ps.fill(0xff);
  } else {
    ps = nonZero(k - mLen - 3);
  }
  return new bn(Buffer.concat([new Buffer([0, reverse?1:2]), ps, new Buffer([0]), msg], k));
}
function nonZero(len, crypto) {
  var out = new Buffer(len);
  var i = 0;
  var cache = randomBytes(len*2);
  var cur = 0;
  var num;
  while (i < len) {
    if (cur === cache.length) {
      cache = randomBytes(len*2);
      cur = 0;
    }
    num = cache[cur++];
    if (num) {
      out[i++] = num;
    }
  }
  return out;
}
}).call(this,require("buffer").Buffer)
},{"./mgf":163,"./withPublic":205,"./xor":206,"bn.js":164,"browserify-rsa":165,"buffer":18,"create-hash":140,"parse-asn1":169,"randombytes":207}],205:[function(require,module,exports){
(function (Buffer){
var bn = require('bn.js');
function withPublic(paddedMsg, key) {
  return new Buffer(paddedMsg
    .toRed(bn.mont(key.modulus))
    .redPow(new bn(key.publicExponent))
    .fromRed()
    .toArray());
}

module.exports = withPublic;
}).call(this,require("buffer").Buffer)
},{"bn.js":164,"buffer":18}],206:[function(require,module,exports){
module.exports = function xor(a, b) {
  var len = a.length;
  var i = -1;
  while (++i < len) {
    a[i] ^= b[i];
  }
  return a
};
},{}],207:[function(require,module,exports){
(function (process,global,Buffer){
'use strict';

var crypto = global.crypto || global.msCrypto
if(crypto && crypto.getRandomValues) {
  module.exports = randomBytes;
} else {
  module.exports = oldBrowser;
}
function randomBytes(size, cb) {
  var bytes = new Buffer(size); //in browserify, this is an extended Uint8Array
    /* This will not work in older browsers.
     * See https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues
     */

  crypto.getRandomValues(bytes);
  if (typeof cb === 'function') {
    return process.nextTick(function () {
      cb(null, bytes);
    });
  }
  return bytes;
}
function oldBrowser() {
  throw new Error(
      'secure random number generation not supported by this browser\n'+
      'use chrome, FireFox or Internet Explorer 11'
    )
}

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
},{"_process":215,"buffer":18}],208:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

function EventEmitter() {
  this._events = this._events || {};
  this._maxListeners = this._maxListeners || undefined;
}
module.exports = EventEmitter;

// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;

EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
EventEmitter.defaultMaxListeners = 10;

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function(n) {
  if (!isNumber(n) || n < 0 || isNaN(n))
    throw TypeError('n must be a positive number');
  this._maxListeners = n;
  return this;
};

EventEmitter.prototype.emit = function(type) {
  var er, handler, len, args, i, listeners;

  if (!this._events)
    this._events = {};

  // If there is no 'error' event listener then throw.
  if (type === 'error') {
    if (!this._events.error ||
        (isObject(this._events.error) && !this._events.error.length)) {
      er = arguments[1];
      if (er instanceof Error) {
        throw er; // Unhandled 'error' event
      }
      throw TypeError('Uncaught, unspecified "error" event.');
    }
  }

  handler = this._events[type];

  if (isUndefined(handler))
    return false;

  if (isFunction(handler)) {
    switch (arguments.length) {
      // fast cases
      case 1:
        handler.call(this);
        break;
      case 2:
        handler.call(this, arguments[1]);
        break;
      case 3:
        handler.call(this, arguments[1], arguments[2]);
        break;
      // slower
      default:
        len = arguments.length;
        args = new Array(len - 1);
        for (i = 1; i < len; i++)
          args[i - 1] = arguments[i];
        handler.apply(this, args);
    }
  } else if (isObject(handler)) {
    len = arguments.length;
    args = new Array(len - 1);
    for (i = 1; i < len; i++)
      args[i - 1] = arguments[i];

    listeners = handler.slice();
    len = listeners.length;
    for (i = 0; i < len; i++)
      listeners[i].apply(this, args);
  }

  return true;
};

EventEmitter.prototype.addListener = function(type, listener) {
  var m;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events)
    this._events = {};

  // To avoid recursion in the case that type === "newListener"! Before
  // adding it to the listeners, first emit "newListener".
  if (this._events.newListener)
    this.emit('newListener', type,
              isFunction(listener.listener) ?
              listener.listener : listener);

  if (!this._events[type])
    // Optimize the case of one listener. Don't need the extra array object.
    this._events[type] = listener;
  else if (isObject(this._events[type]))
    // If we've already got an array, just append.
    this._events[type].push(listener);
  else
    // Adding the second element, need to change to array.
    this._events[type] = [this._events[type], listener];

  // Check for listener leak
  if (isObject(this._events[type]) && !this._events[type].warned) {
    var m;
    if (!isUndefined(this._maxListeners)) {
      m = this._maxListeners;
    } else {
      m = EventEmitter.defaultMaxListeners;
    }

    if (m && m > 0 && this._events[type].length > m) {
      this._events[type].warned = true;
      console.error('(node) warning: possible EventEmitter memory ' +
                    'leak detected. %d listeners added. ' +
                    'Use emitter.setMaxListeners() to increase limit.',
                    this._events[type].length);
      if (typeof console.trace === 'function') {
        // not supported in IE 10
        console.trace();
      }
    }
  }

  return this;
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.once = function(type, listener) {
  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  var fired = false;

  function g() {
    this.removeListener(type, g);

    if (!fired) {
      fired = true;
      listener.apply(this, arguments);
    }
  }

  g.listener = listener;
  this.on(type, g);

  return this;
};

// emits a 'removeListener' event iff the listener was removed
EventEmitter.prototype.removeListener = function(type, listener) {
  var list, position, length, i;

  if (!isFunction(listener))
    throw TypeError('listener must be a function');

  if (!this._events || !this._events[type])
    return this;

  list = this._events[type];
  length = list.length;
  position = -1;

  if (list === listener ||
      (isFunction(list.listener) && list.listener === listener)) {
    delete this._events[type];
    if (this._events.removeListener)
      this.emit('removeListener', type, listener);

  } else if (isObject(list)) {
    for (i = length; i-- > 0;) {
      if (list[i] === listener ||
          (list[i].listener && list[i].listener === listener)) {
        position = i;
        break;
      }
    }

    if (position < 0)
      return this;

    if (list.length === 1) {
      list.length = 0;
      delete this._events[type];
    } else {
      list.splice(position, 1);
    }

    if (this._events.removeListener)
      this.emit('removeListener', type, listener);
  }

  return this;
};

EventEmitter.prototype.removeAllListeners = function(type) {
  var key, listeners;

  if (!this._events)
    return this;

  // not listening for removeListener, no need to emit
  if (!this._events.removeListener) {
    if (arguments.length === 0)
      this._events = {};
    else if (this._events[type])
      delete this._events[type];
    return this;
  }

  // emit removeListener for all listeners on all events
  if (arguments.length === 0) {
    for (key in this._events) {
      if (key === 'removeListener') continue;
      this.removeAllListeners(key);
    }
    this.removeAllListeners('removeListener');
    this._events = {};
    return this;
  }

  listeners = this._events[type];

  if (isFunction(listeners)) {
    this.removeListener(type, listeners);
  } else {
    // LIFO order
    while (listeners.length)
      this.removeListener(type, listeners[listeners.length - 1]);
  }
  delete this._events[type];

  return this;
};

EventEmitter.prototype.listeners = function(type) {
  var ret;
  if (!this._events || !this._events[type])
    ret = [];
  else if (isFunction(this._events[type]))
    ret = [this._events[type]];
  else
    ret = this._events[type].slice();
  return ret;
};

EventEmitter.listenerCount = function(emitter, type) {
  var ret;
  if (!emitter._events || !emitter._events[type])
    ret = 0;
  else if (isFunction(emitter._events[type]))
    ret = 1;
  else
    ret = emitter._events[type].length;
  return ret;
};

function isFunction(arg) {
  return typeof arg === 'function';
}

function isNumber(arg) {
  return typeof arg === 'number';
}

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}

function isUndefined(arg) {
  return arg === void 0;
}

},{}],209:[function(require,module,exports){
var http = require('http');

var https = module.exports;

for (var key in http) {
    if (http.hasOwnProperty(key)) https[key] = http[key];
};

https.request = function (params, cb) {
    if (!params) params = {};
    params.scheme = 'https';
    params.protocol = 'https:';
    return http.request.call(this, params, cb);
}

},{"http":234}],210:[function(require,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    ctor.prototype = Object.create(superCtor.prototype, {
      constructor: {
        value: ctor,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    var TempCtor = function () {}
    TempCtor.prototype = superCtor.prototype
    ctor.prototype = new TempCtor()
    ctor.prototype.constructor = ctor
  }
}

},{}],211:[function(require,module,exports){
/**
 * Determine if an object is Buffer
 *
 * Author:   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * License:  MIT
 *
 * `npm install is-buffer`
 */

module.exports = function (obj) {
  return !!(obj != null &&
    (obj._isBuffer || // For Safari 5-7 (missing Object.prototype.constructor)
      (obj.constructor &&
      typeof obj.constructor.isBuffer === 'function' &&
      obj.constructor.isBuffer(obj))
    ))
}

},{}],212:[function(require,module,exports){
module.exports = Array.isArray || function (arr) {
  return Object.prototype.toString.call(arr) == '[object Array]';
};

},{}],213:[function(require,module,exports){
exports.endianness = function () { return 'LE' };

exports.hostname = function () {
    if (typeof location !== 'undefined') {
        return location.hostname
    }
    else return '';
};

exports.loadavg = function () { return [] };

exports.uptime = function () { return 0 };

exports.freemem = function () {
    return Number.MAX_VALUE;
};

exports.totalmem = function () {
    return Number.MAX_VALUE;
};

exports.cpus = function () { return [] };

exports.type = function () { return 'Browser' };

exports.release = function () {
    if (typeof navigator !== 'undefined') {
        return navigator.appVersion;
    }
    return '';
};

exports.networkInterfaces
= exports.getNetworkInterfaces
= function () { return {} };

exports.arch = function () { return 'javascript' };

exports.platform = function () { return 'browser' };

exports.tmpdir = exports.tmpDir = function () {
    return '/tmp';
};

exports.EOL = '\n';

},{}],214:[function(require,module,exports){
(function (process){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// resolves . and .. elements in a path array with directory names there
// must be no slashes, empty elements, or device names (c:\) in the array
// (so also no leading and trailing slashes - it does not distinguish
// relative and absolute paths)
function normalizeArray(parts, allowAboveRoot) {
  // if the path tries to go above the root, `up` ends up > 0
  var up = 0;
  for (var i = parts.length - 1; i >= 0; i--) {
    var last = parts[i];
    if (last === '.') {
      parts.splice(i, 1);
    } else if (last === '..') {
      parts.splice(i, 1);
      up++;
    } else if (up) {
      parts.splice(i, 1);
      up--;
    }
  }

  // if the path is allowed to go above the root, restore leading ..s
  if (allowAboveRoot) {
    for (; up--; up) {
      parts.unshift('..');
    }
  }

  return parts;
}

// Split a filename into [root, dir, basename, ext], unix version
// 'root' is just a slash, or nothing.
var splitPathRe =
    /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
var splitPath = function(filename) {
  return splitPathRe.exec(filename).slice(1);
};

// path.resolve([from ...], to)
// posix version
exports.resolve = function() {
  var resolvedPath = '',
      resolvedAbsolute = false;

  for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
    var path = (i >= 0) ? arguments[i] : process.cwd();

    // Skip empty and invalid entries
    if (typeof path !== 'string') {
      throw new TypeError('Arguments to path.resolve must be strings');
    } else if (!path) {
      continue;
    }

    resolvedPath = path + '/' + resolvedPath;
    resolvedAbsolute = path.charAt(0) === '/';
  }

  // At this point the path should be resolved to a full absolute path, but
  // handle relative paths to be safe (might happen when process.cwd() fails)

  // Normalize the path
  resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
    return !!p;
  }), !resolvedAbsolute).join('/');

  return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
};

// path.normalize(path)
// posix version
exports.normalize = function(path) {
  var isAbsolute = exports.isAbsolute(path),
      trailingSlash = substr(path, -1) === '/';

  // Normalize the path
  path = normalizeArray(filter(path.split('/'), function(p) {
    return !!p;
  }), !isAbsolute).join('/');

  if (!path && !isAbsolute) {
    path = '.';
  }
  if (path && trailingSlash) {
    path += '/';
  }

  return (isAbsolute ? '/' : '') + path;
};

// posix version
exports.isAbsolute = function(path) {
  return path.charAt(0) === '/';
};

// posix version
exports.join = function() {
  var paths = Array.prototype.slice.call(arguments, 0);
  return exports.normalize(filter(paths, function(p, index) {
    if (typeof p !== 'string') {
      throw new TypeError('Arguments to path.join must be strings');
    }
    return p;
  }).join('/'));
};


// path.relative(from, to)
// posix version
exports.relative = function(from, to) {
  from = exports.resolve(from).substr(1);
  to = exports.resolve(to).substr(1);

  function trim(arr) {
    var start = 0;
    for (; start < arr.length; start++) {
      if (arr[start] !== '') break;
    }

    var end = arr.length - 1;
    for (; end >= 0; end--) {
      if (arr[end] !== '') break;
    }

    if (start > end) return [];
    return arr.slice(start, end - start + 1);
  }

  var fromParts = trim(from.split('/'));
  var toParts = trim(to.split('/'));

  var length = Math.min(fromParts.length, toParts.length);
  var samePartsLength = length;
  for (var i = 0; i < length; i++) {
    if (fromParts[i] !== toParts[i]) {
      samePartsLength = i;
      break;
    }
  }

  var outputParts = [];
  for (var i = samePartsLength; i < fromParts.length; i++) {
    outputParts.push('..');
  }

  outputParts = outputParts.concat(toParts.slice(samePartsLength));

  return outputParts.join('/');
};

exports.sep = '/';
exports.delimiter = ':';

exports.dirname = function(path) {
  var result = splitPath(path),
      root = result[0],
      dir = result[1];

  if (!root && !dir) {
    // No dirname whatsoever
    return '.';
  }

  if (dir) {
    // It has a dirname, strip trailing slash
    dir = dir.substr(0, dir.length - 1);
  }

  return root + dir;
};


exports.basename = function(path, ext) {
  var f = splitPath(path)[2];
  // TODO: make this comparison case-insensitive on windows?
  if (ext && f.substr(-1 * ext.length) === ext) {
    f = f.substr(0, f.length - ext.length);
  }
  return f;
};


exports.extname = function(path) {
  return splitPath(path)[3];
};

function filter (xs, f) {
    if (xs.filter) return xs.filter(f);
    var res = [];
    for (var i = 0; i < xs.length; i++) {
        if (f(xs[i], i, xs)) res.push(xs[i]);
    }
    return res;
}

// String.prototype.substr - negative index don't work in IE8
var substr = 'ab'.substr(-1) === 'b'
    ? function (str, start, len) { return str.substr(start, len) }
    : function (str, start, len) {
        if (start < 0) start = str.length + start;
        return str.substr(start, len);
    }
;

}).call(this,require('_process'))
},{"_process":215}],215:[function(require,module,exports){
// shim for using process in browser

var process = module.exports = {};
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = setTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    clearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        setTimeout(drainQueue, 0);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],216:[function(require,module,exports){
(function (global){
/*! https://mths.be/punycode v1.3.2 by @mathias */
;(function(root) {

	/** Detect free variables */
	var freeExports = typeof exports == 'object' && exports &&
		!exports.nodeType && exports;
	var freeModule = typeof module == 'object' && module &&
		!module.nodeType && module;
	var freeGlobal = typeof global == 'object' && global;
	if (
		freeGlobal.global === freeGlobal ||
		freeGlobal.window === freeGlobal ||
		freeGlobal.self === freeGlobal
	) {
		root = freeGlobal;
	}

	/**
	 * The `punycode` object.
	 * @name punycode
	 * @type Object
	 */
	var punycode,

	/** Highest positive signed 32-bit float value */
	maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1

	/** Bootstring parameters */
	base = 36,
	tMin = 1,
	tMax = 26,
	skew = 38,
	damp = 700,
	initialBias = 72,
	initialN = 128, // 0x80
	delimiter = '-', // '\x2D'

	/** Regular expressions */
	regexPunycode = /^xn--/,
	regexNonASCII = /[^\x20-\x7E]/, // unprintable ASCII chars + non-ASCII chars
	regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g, // RFC 3490 separators

	/** Error messages */
	errors = {
		'overflow': 'Overflow: input needs wider integers to process',
		'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
		'invalid-input': 'Invalid input'
	},

	/** Convenience shortcuts */
	baseMinusTMin = base - tMin,
	floor = Math.floor,
	stringFromCharCode = String.fromCharCode,

	/** Temporary variable */
	key;

	/*--------------------------------------------------------------------------*/

	/**
	 * A generic error utility function.
	 * @private
	 * @param {String} type The error type.
	 * @returns {Error} Throws a `RangeError` with the applicable error message.
	 */
	function error(type) {
		throw RangeError(errors[type]);
	}

	/**
	 * A generic `Array#map` utility function.
	 * @private
	 * @param {Array} array The array to iterate over.
	 * @param {Function} callback The function that gets called for every array
	 * item.
	 * @returns {Array} A new array of values returned by the callback function.
	 */
	function map(array, fn) {
		var length = array.length;
		var result = [];
		while (length--) {
			result[length] = fn(array[length]);
		}
		return result;
	}

	/**
	 * A simple `Array#map`-like wrapper to work with domain name strings or email
	 * addresses.
	 * @private
	 * @param {String} domain The domain name or email address.
	 * @param {Function} callback The function that gets called for every
	 * character.
	 * @returns {Array} A new string of characters returned by the callback
	 * function.
	 */
	function mapDomain(string, fn) {
		var parts = string.split('@');
		var result = '';
		if (parts.length > 1) {
			// In email addresses, only the domain name should be punycoded. Leave
			// the local part (i.e. everything up to `@`) intact.
			result = parts[0] + '@';
			string = parts[1];
		}
		// Avoid `split(regex)` for IE8 compatibility. See #17.
		string = string.replace(regexSeparators, '\x2E');
		var labels = string.split('.');
		var encoded = map(labels, fn).join('.');
		return result + encoded;
	}

	/**
	 * Creates an array containing the numeric code points of each Unicode
	 * character in the string. While JavaScript uses UCS-2 internally,
	 * this function will convert a pair of surrogate halves (each of which
	 * UCS-2 exposes as separate characters) into a single code point,
	 * matching UTF-16.
	 * @see `punycode.ucs2.encode`
	 * @see <https://mathiasbynens.be/notes/javascript-encoding>
	 * @memberOf punycode.ucs2
	 * @name decode
	 * @param {String} string The Unicode input string (UCS-2).
	 * @returns {Array} The new array of code points.
	 */
	function ucs2decode(string) {
		var output = [],
		    counter = 0,
		    length = string.length,
		    value,
		    extra;
		while (counter < length) {
			value = string.charCodeAt(counter++);
			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
				// high surrogate, and there is a next character
				extra = string.charCodeAt(counter++);
				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
				} else {
					// unmatched surrogate; only append this code unit, in case the next
					// code unit is the high surrogate of a surrogate pair
					output.push(value);
					counter--;
				}
			} else {
				output.push(value);
			}
		}
		return output;
	}

	/**
	 * Creates a string based on an array of numeric code points.
	 * @see `punycode.ucs2.decode`
	 * @memberOf punycode.ucs2
	 * @name encode
	 * @param {Array} codePoints The array of numeric code points.
	 * @returns {String} The new Unicode string (UCS-2).
	 */
	function ucs2encode(array) {
		return map(array, function(value) {
			var output = '';
			if (value > 0xFFFF) {
				value -= 0x10000;
				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
				value = 0xDC00 | value & 0x3FF;
			}
			output += stringFromCharCode(value);
			return output;
		}).join('');
	}

	/**
	 * Converts a basic code point into a digit/integer.
	 * @see `digitToBasic()`
	 * @private
	 * @param {Number} codePoint The basic numeric code point value.
	 * @returns {Number} The numeric value of a basic code point (for use in
	 * representing integers) in the range `0` to `base - 1`, or `base` if
	 * the code point does not represent a value.
	 */
	function basicToDigit(codePoint) {
		if (codePoint - 48 < 10) {
			return codePoint - 22;
		}
		if (codePoint - 65 < 26) {
			return codePoint - 65;
		}
		if (codePoint - 97 < 26) {
			return codePoint - 97;
		}
		return base;
	}

	/**
	 * Converts a digit/integer into a basic code point.
	 * @see `basicToDigit()`
	 * @private
	 * @param {Number} digit The numeric value of a basic code point.
	 * @returns {Number} The basic code point whose value (when used for
	 * representing integers) is `digit`, which needs to be in the range
	 * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
	 * used; else, the lowercase form is used. The behavior is undefined
	 * if `flag` is non-zero and `digit` has no uppercase form.
	 */
	function digitToBasic(digit, flag) {
		//  0..25 map to ASCII a..z or A..Z
		// 26..35 map to ASCII 0..9
		return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
	}

	/**
	 * Bias adaptation function as per section 3.4 of RFC 3492.
	 * http://tools.ietf.org/html/rfc3492#section-3.4
	 * @private
	 */
	function adapt(delta, numPoints, firstTime) {
		var k = 0;
		delta = firstTime ? floor(delta / damp) : delta >> 1;
		delta += floor(delta / numPoints);
		for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
			delta = floor(delta / baseMinusTMin);
		}
		return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
	}

	/**
	 * Converts a Punycode string of ASCII-only symbols to a string of Unicode
	 * symbols.
	 * @memberOf punycode
	 * @param {String} input The Punycode string of ASCII-only symbols.
	 * @returns {String} The resulting string of Unicode symbols.
	 */
	function decode(input) {
		// Don't use UCS-2
		var output = [],
		    inputLength = input.length,
		    out,
		    i = 0,
		    n = initialN,
		    bias = initialBias,
		    basic,
		    j,
		    index,
		    oldi,
		    w,
		    k,
		    digit,
		    t,
		    /** Cached calculation results */
		    baseMinusT;

		// Handle the basic code points: let `basic` be the number of input code
		// points before the last delimiter, or `0` if there is none, then copy
		// the first basic code points to the output.

		basic = input.lastIndexOf(delimiter);
		if (basic < 0) {
			basic = 0;
		}

		for (j = 0; j < basic; ++j) {
			// if it's not a basic code point
			if (input.charCodeAt(j) >= 0x80) {
				error('not-basic');
			}
			output.push(input.charCodeAt(j));
		}

		// Main decoding loop: start just after the last delimiter if any basic code
		// points were copied; start at the beginning otherwise.

		for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {

			// `index` is the index of the next character to be consumed.
			// Decode a generalized variable-length integer into `delta`,
			// which gets added to `i`. The overflow checking is easier
			// if we increase `i` as we go, then subtract off its starting
			// value at the end to obtain `delta`.
			for (oldi = i, w = 1, k = base; /* no condition */; k += base) {

				if (index >= inputLength) {
					error('invalid-input');
				}

				digit = basicToDigit(input.charCodeAt(index++));

				if (digit >= base || digit > floor((maxInt - i) / w)) {
					error('overflow');
				}

				i += digit * w;
				t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);

				if (digit < t) {
					break;
				}

				baseMinusT = base - t;
				if (w > floor(maxInt / baseMinusT)) {
					error('overflow');
				}

				w *= baseMinusT;

			}

			out = output.length + 1;
			bias = adapt(i - oldi, out, oldi == 0);

			// `i` was supposed to wrap around from `out` to `0`,
			// incrementing `n` each time, so we'll fix that now:
			if (floor(i / out) > maxInt - n) {
				error('overflow');
			}

			n += floor(i / out);
			i %= out;

			// Insert `n` at position `i` of the output
			output.splice(i++, 0, n);

		}

		return ucs2encode(output);
	}

	/**
	 * Converts a string of Unicode symbols (e.g. a domain name label) to a
	 * Punycode string of ASCII-only symbols.
	 * @memberOf punycode
	 * @param {String} input The string of Unicode symbols.
	 * @returns {String} The resulting Punycode string of ASCII-only symbols.
	 */
	function encode(input) {
		var n,
		    delta,
		    handledCPCount,
		    basicLength,
		    bias,
		    j,
		    m,
		    q,
		    k,
		    t,
		    currentValue,
		    output = [],
		    /** `inputLength` will hold the number of code points in `input`. */
		    inputLength,
		    /** Cached calculation results */
		    handledCPCountPlusOne,
		    baseMinusT,
		    qMinusT;

		// Convert the input in UCS-2 to Unicode
		input = ucs2decode(input);

		// Cache the length
		inputLength = input.length;

		// Initialize the state
		n = initialN;
		delta = 0;
		bias = initialBias;

		// Handle the basic code points
		for (j = 0; j < inputLength; ++j) {
			currentValue = input[j];
			if (currentValue < 0x80) {
				output.push(stringFromCharCode(currentValue));
			}
		}

		handledCPCount = basicLength = output.length;

		// `handledCPCount` is the number of code points that have been handled;
		// `basicLength` is the number of basic code points.

		// Finish the basic string - if it is not empty - with a delimiter
		if (basicLength) {
			output.push(delimiter);
		}

		// Main encoding loop:
		while (handledCPCount < inputLength) {

			// All non-basic code points < n have been handled already. Find the next
			// larger one:
			for (m = maxInt, j = 0; j < inputLength; ++j) {
				currentValue = input[j];
				if (currentValue >= n && currentValue < m) {
					m = currentValue;
				}
			}

			// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
			// but guard against overflow
			handledCPCountPlusOne = handledCPCount + 1;
			if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
				error('overflow');
			}

			delta += (m - n) * handledCPCountPlusOne;
			n = m;

			for (j = 0; j < inputLength; ++j) {
				currentValue = input[j];

				if (currentValue < n && ++delta > maxInt) {
					error('overflow');
				}

				if (currentValue == n) {
					// Represent delta as a generalized variable-length integer
					for (q = delta, k = base; /* no condition */; k += base) {
						t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
						if (q < t) {
							break;
						}
						qMinusT = q - t;
						baseMinusT = base - t;
						output.push(
							stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
						);
						q = floor(qMinusT / baseMinusT);
					}

					output.push(stringFromCharCode(digitToBasic(q, 0)));
					bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
					delta = 0;
					++handledCPCount;
				}
			}

			++delta;
			++n;

		}
		return output.join('');
	}

	/**
	 * Converts a Punycode string representing a domain name or an email address
	 * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
	 * it doesn't matter if you call it on a string that has already been
	 * converted to Unicode.
	 * @memberOf punycode
	 * @param {String} input The Punycoded domain name or email address to
	 * convert to Unicode.
	 * @returns {String} The Unicode representation of the given Punycode
	 * string.
	 */
	function toUnicode(input) {
		return mapDomain(input, function(string) {
			return regexPunycode.test(string)
				? decode(string.slice(4).toLowerCase())
				: string;
		});
	}

	/**
	 * Converts a Unicode string representing a domain name or an email address to
	 * Punycode. Only the non-ASCII parts of the domain name will be converted,
	 * i.e. it doesn't matter if you call it with a domain that's already in
	 * ASCII.
	 * @memberOf punycode
	 * @param {String} input The domain name or email address to convert, as a
	 * Unicode string.
	 * @returns {String} The Punycode representation of the given domain name or
	 * email address.
	 */
	function toASCII(input) {
		return mapDomain(input, function(string) {
			return regexNonASCII.test(string)
				? 'xn--' + encode(string)
				: string;
		});
	}

	/*--------------------------------------------------------------------------*/

	/** Define the public API */
	punycode = {
		/**
		 * A string representing the current Punycode.js version number.
		 * @memberOf punycode
		 * @type String
		 */
		'version': '1.3.2',
		/**
		 * An object of methods to convert from JavaScript's internal character
		 * representation (UCS-2) to Unicode code points, and back.
		 * @see <https://mathiasbynens.be/notes/javascript-encoding>
		 * @memberOf punycode
		 * @type Object
		 */
		'ucs2': {
			'decode': ucs2decode,
			'encode': ucs2encode
		},
		'decode': decode,
		'encode': encode,
		'toASCII': toASCII,
		'toUnicode': toUnicode
	};

	/** Expose `punycode` */
	// Some AMD build optimizers, like r.js, check for specific condition patterns
	// like the following:
	if (
		typeof define == 'function' &&
		typeof define.amd == 'object' &&
		define.amd
	) {
		define('punycode', function() {
			return punycode;
		});
	} else if (freeExports && freeModule) {
		if (module.exports == freeExports) { // in Node.js or RingoJS v0.8.0+
			freeModule.exports = punycode;
		} else { // in Narwhal or RingoJS v0.7.0-
			for (key in punycode) {
				punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
			}
		}
	} else { // in Rhino or a web browser
		root.punycode = punycode;
	}

}(this));

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],217:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

// If obj.hasOwnProperty has been overridden, then calling
// obj.hasOwnProperty(prop) will break.
// See: https://github.com/joyent/node/issues/1707
function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

module.exports = function(qs, sep, eq, options) {
  sep = sep || '&';
  eq = eq || '=';
  var obj = {};

  if (typeof qs !== 'string' || qs.length === 0) {
    return obj;
  }

  var regexp = /\+/g;
  qs = qs.split(sep);

  var maxKeys = 1000;
  if (options && typeof options.maxKeys === 'number') {
    maxKeys = options.maxKeys;
  }

  var len = qs.length;
  // maxKeys <= 0 means that we should not limit keys count
  if (maxKeys > 0 && len > maxKeys) {
    len = maxKeys;
  }

  for (var i = 0; i < len; ++i) {
    var x = qs[i].replace(regexp, '%20'),
        idx = x.indexOf(eq),
        kstr, vstr, k, v;

    if (idx >= 0) {
      kstr = x.substr(0, idx);
      vstr = x.substr(idx + 1);
    } else {
      kstr = x;
      vstr = '';
    }

    k = decodeURIComponent(kstr);
    v = decodeURIComponent(vstr);

    if (!hasOwnProperty(obj, k)) {
      obj[k] = v;
    } else if (isArray(obj[k])) {
      obj[k].push(v);
    } else {
      obj[k] = [obj[k], v];
    }
  }

  return obj;
};

var isArray = Array.isArray || function (xs) {
  return Object.prototype.toString.call(xs) === '[object Array]';
};

},{}],218:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

var stringifyPrimitive = function(v) {
  switch (typeof v) {
    case 'string':
      return v;

    case 'boolean':
      return v ? 'true' : 'false';

    case 'number':
      return isFinite(v) ? v : '';

    default:
      return '';
  }
};

module.exports = function(obj, sep, eq, name) {
  sep = sep || '&';
  eq = eq || '=';
  if (obj === null) {
    obj = undefined;
  }

  if (typeof obj === 'object') {
    return map(objectKeys(obj), function(k) {
      var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;
      if (isArray(obj[k])) {
        return map(obj[k], function(v) {
          return ks + encodeURIComponent(stringifyPrimitive(v));
        }).join(sep);
      } else {
        return ks + encodeURIComponent(stringifyPrimitive(obj[k]));
      }
    }).join(sep);

  }

  if (!name) return '';
  return encodeURIComponent(stringifyPrimitive(name)) + eq +
         encodeURIComponent(stringifyPrimitive(obj));
};

var isArray = Array.isArray || function (xs) {
  return Object.prototype.toString.call(xs) === '[object Array]';
};

function map (xs, f) {
  if (xs.map) return xs.map(f);
  var res = [];
  for (var i = 0; i < xs.length; i++) {
    res.push(f(xs[i], i));
  }
  return res;
}

var objectKeys = Object.keys || function (obj) {
  var res = [];
  for (var key in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, key)) res.push(key);
  }
  return res;
};

},{}],219:[function(require,module,exports){
'use strict';

exports.decode = exports.parse = require('./decode');
exports.encode = exports.stringify = require('./encode');

},{"./decode":217,"./encode":218}],220:[function(require,module,exports){
module.exports = require("./lib/_stream_duplex.js")

},{"./lib/_stream_duplex.js":221}],221:[function(require,module,exports){
// a duplex stream is just a stream that is both readable and writable.
// Since JS doesn't have multiple prototypal inheritance, this class
// prototypally inherits from Readable, and then parasitically from
// Writable.

'use strict';

/*<replacement>*/
var objectKeys = Object.keys || function (obj) {
  var keys = [];
  for (var key in obj) keys.push(key);
  return keys;
}
/*</replacement>*/


module.exports = Duplex;

/*<replacement>*/
var processNextTick = require('process-nextick-args');
/*</replacement>*/



/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

var Readable = require('./_stream_readable');
var Writable = require('./_stream_writable');

util.inherits(Duplex, Readable);

var keys = objectKeys(Writable.prototype);
for (var v = 0; v < keys.length; v++) {
  var method = keys[v];
  if (!Duplex.prototype[method])
    Duplex.prototype[method] = Writable.prototype[method];
}

function Duplex(options) {
  if (!(this instanceof Duplex))
    return new Duplex(options);

  Readable.call(this, options);
  Writable.call(this, options);

  if (options && options.readable === false)
    this.readable = false;

  if (options && options.writable === false)
    this.writable = false;

  this.allowHalfOpen = true;
  if (options && options.allowHalfOpen === false)
    this.allowHalfOpen = false;

  this.once('end', onend);
}

// the no-half-open enforcer
function onend() {
  // if we allow half-open state, or if the writable side ended,
  // then we're ok.
  if (this.allowHalfOpen || this._writableState.ended)
    return;

  // no more data can be written.
  // But allow more writes to happen in this tick.
  processNextTick(onEndNT, this);
}

function onEndNT(self) {
  self.end();
}

function forEach (xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}

},{"./_stream_readable":223,"./_stream_writable":225,"core-util-is":226,"inherits":210,"process-nextick-args":227}],222:[function(require,module,exports){
// a passthrough stream.
// basically just the most minimal sort of Transform stream.
// Every written chunk gets output as-is.

'use strict';

module.exports = PassThrough;

var Transform = require('./_stream_transform');

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(PassThrough, Transform);

function PassThrough(options) {
  if (!(this instanceof PassThrough))
    return new PassThrough(options);

  Transform.call(this, options);
}

PassThrough.prototype._transform = function(chunk, encoding, cb) {
  cb(null, chunk);
};

},{"./_stream_transform":224,"core-util-is":226,"inherits":210}],223:[function(require,module,exports){
(function (process){
'use strict';

module.exports = Readable;

/*<replacement>*/
var processNextTick = require('process-nextick-args');
/*</replacement>*/


/*<replacement>*/
var isArray = require('isarray');
/*</replacement>*/


/*<replacement>*/
var Buffer = require('buffer').Buffer;
/*</replacement>*/

Readable.ReadableState = ReadableState;

var EE = require('events');

/*<replacement>*/
var EElistenerCount = function(emitter, type) {
  return emitter.listeners(type).length;
};
/*</replacement>*/



/*<replacement>*/
var Stream;
(function (){try{
  Stream = require('st' + 'ream');
}catch(_){}finally{
  if (!Stream)
    Stream = require('events').EventEmitter;
}}())
/*</replacement>*/

var Buffer = require('buffer').Buffer;

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/



/*<replacement>*/
var debugUtil = require('util');
var debug;
if (debugUtil && debugUtil.debuglog) {
  debug = debugUtil.debuglog('stream');
} else {
  debug = function () {};
}
/*</replacement>*/

var StringDecoder;

util.inherits(Readable, Stream);

function ReadableState(options, stream) {
  var Duplex = require('./_stream_duplex');

  options = options || {};

  // object stream flag. Used to make read(n) ignore n and to
  // make all the buffer merging and length checks go away
  this.objectMode = !!options.objectMode;

  if (stream instanceof Duplex)
    this.objectMode = this.objectMode || !!options.readableObjectMode;

  // the point at which it stops calling _read() to fill the buffer
  // Note: 0 is a valid value, means "don't call _read preemptively ever"
  var hwm = options.highWaterMark;
  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
  this.highWaterMark = (hwm || hwm === 0) ? hwm : defaultHwm;

  // cast to ints.
  this.highWaterMark = ~~this.highWaterMark;

  this.buffer = [];
  this.length = 0;
  this.pipes = null;
  this.pipesCount = 0;
  this.flowing = null;
  this.ended = false;
  this.endEmitted = false;
  this.reading = false;

  // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, because any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.
  this.sync = true;

  // whenever we return null, then we set a flag to say
  // that we're awaiting a 'readable' event emission.
  this.needReadable = false;
  this.emittedReadable = false;
  this.readableListening = false;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // when piping, we only care about 'readable' events that happen
  // after read()ing all the bytes and not getting any pushback.
  this.ranOut = false;

  // the number of writers that are awaiting a drain event in .pipe()s
  this.awaitDrain = 0;

  // if true, a maybeReadMore has been scheduled
  this.readingMore = false;

  this.decoder = null;
  this.encoding = null;
  if (options.encoding) {
    if (!StringDecoder)
      StringDecoder = require('string_decoder/').StringDecoder;
    this.decoder = new StringDecoder(options.encoding);
    this.encoding = options.encoding;
  }
}

function Readable(options) {
  var Duplex = require('./_stream_duplex');

  if (!(this instanceof Readable))
    return new Readable(options);

  this._readableState = new ReadableState(options, this);

  // legacy
  this.readable = true;

  if (options && typeof options.read === 'function')
    this._read = options.read;

  Stream.call(this);
}

// Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.
Readable.prototype.push = function(chunk, encoding) {
  var state = this._readableState;

  if (!state.objectMode && typeof chunk === 'string') {
    encoding = encoding || state.defaultEncoding;
    if (encoding !== state.encoding) {
      chunk = new Buffer(chunk, encoding);
      encoding = '';
    }
  }

  return readableAddChunk(this, state, chunk, encoding, false);
};

// Unshift should *always* be something directly out of read()
Readable.prototype.unshift = function(chunk) {
  var state = this._readableState;
  return readableAddChunk(this, state, chunk, '', true);
};

Readable.prototype.isPaused = function() {
  return this._readableState.flowing === false;
};

function readableAddChunk(stream, state, chunk, encoding, addToFront) {
  var er = chunkInvalid(state, chunk);
  if (er) {
    stream.emit('error', er);
  } else if (chunk === null) {
    state.reading = false;
    onEofChunk(stream, state);
  } else if (state.objectMode || chunk && chunk.length > 0) {
    if (state.ended && !addToFront) {
      var e = new Error('stream.push() after EOF');
      stream.emit('error', e);
    } else if (state.endEmitted && addToFront) {
      var e = new Error('stream.unshift() after end event');
      stream.emit('error', e);
    } else {
      if (state.decoder && !addToFront && !encoding)
        chunk = state.decoder.write(chunk);

      if (!addToFront)
        state.reading = false;

      // if we want the data now, just emit it.
      if (state.flowing && state.length === 0 && !state.sync) {
        stream.emit('data', chunk);
        stream.read(0);
      } else {
        // update the buffer info.
        state.length += state.objectMode ? 1 : chunk.length;
        if (addToFront)
          state.buffer.unshift(chunk);
        else
          state.buffer.push(chunk);

        if (state.needReadable)
          emitReadable(stream);
      }

      maybeReadMore(stream, state);
    }
  } else if (!addToFront) {
    state.reading = false;
  }

  return needMoreData(state);
}


// if it's past the high water mark, we can push in some more.
// Also, if we have no data yet, we can stand some
// more bytes.  This is to work around cases where hwm=0,
// such as the repl.  Also, if the push() triggered a
// readable event, and the user called read(largeNumber) such that
// needReadable was set, then we ought to push more, so that another
// 'readable' event will be triggered.
function needMoreData(state) {
  return !state.ended &&
         (state.needReadable ||
          state.length < state.highWaterMark ||
          state.length === 0);
}

// backwards compatibility.
Readable.prototype.setEncoding = function(enc) {
  if (!StringDecoder)
    StringDecoder = require('string_decoder/').StringDecoder;
  this._readableState.decoder = new StringDecoder(enc);
  this._readableState.encoding = enc;
  return this;
};

// Don't raise the hwm > 8MB
var MAX_HWM = 0x800000;
function computeNewHighWaterMark(n) {
  if (n >= MAX_HWM) {
    n = MAX_HWM;
  } else {
    // Get the next highest power of 2
    n--;
    n |= n >>> 1;
    n |= n >>> 2;
    n |= n >>> 4;
    n |= n >>> 8;
    n |= n >>> 16;
    n++;
  }
  return n;
}

function howMuchToRead(n, state) {
  if (state.length === 0 && state.ended)
    return 0;

  if (state.objectMode)
    return n === 0 ? 0 : 1;

  if (n === null || isNaN(n)) {
    // only flow one buffer at a time
    if (state.flowing && state.buffer.length)
      return state.buffer[0].length;
    else
      return state.length;
  }

  if (n <= 0)
    return 0;

  // If we're asking for more than the target buffer level,
  // then raise the water mark.  Bump up to the next highest
  // power of 2, to prevent increasing it excessively in tiny
  // amounts.
  if (n > state.highWaterMark)
    state.highWaterMark = computeNewHighWaterMark(n);

  // don't have that much.  return null, unless we've ended.
  if (n > state.length) {
    if (!state.ended) {
      state.needReadable = true;
      return 0;
    } else {
      return state.length;
    }
  }

  return n;
}

// you can override either this method, or the async _read(n) below.
Readable.prototype.read = function(n) {
  debug('read', n);
  var state = this._readableState;
  var nOrig = n;

  if (typeof n !== 'number' || n > 0)
    state.emittedReadable = false;

  // if we're doing read(0) to trigger a readable event, but we
  // already have a bunch of data in the buffer, then just trigger
  // the 'readable' event and move on.
  if (n === 0 &&
      state.needReadable &&
      (state.length >= state.highWaterMark || state.ended)) {
    debug('read: emitReadable', state.length, state.ended);
    if (state.length === 0 && state.ended)
      endReadable(this);
    else
      emitReadable(this);
    return null;
  }

  n = howMuchToRead(n, state);

  // if we've ended, and we're now clear, then finish it up.
  if (n === 0 && state.ended) {
    if (state.length === 0)
      endReadable(this);
    return null;
  }

  // All the actual chunk generation logic needs to be
  // *below* the call to _read.  The reason is that in certain
  // synthetic stream cases, such as passthrough streams, _read
  // may be a completely synchronous operation which may change
  // the state of the read buffer, providing enough data when
  // before there was *not* enough.
  //
  // So, the steps are:
  // 1. Figure out what the state of things will be after we do
  // a read from the buffer.
  //
  // 2. If that resulting state will trigger a _read, then call _read.
  // Note that this may be asynchronous, or synchronous.  Yes, it is
  // deeply ugly to write APIs this way, but that still doesn't mean
  // that the Readable class should behave improperly, as streams are
  // designed to be sync/async agnostic.
  // Take note if the _read call is sync or async (ie, if the read call
  // has returned yet), so that we know whether or not it's safe to emit
  // 'readable' etc.
  //
  // 3. Actually pull the requested chunks out of the buffer and return.

  // if we need a readable event, then we need to do some reading.
  var doRead = state.needReadable;
  debug('need readable', doRead);

  // if we currently have less than the highWaterMark, then also read some
  if (state.length === 0 || state.length - n < state.highWaterMark) {
    doRead = true;
    debug('length less than watermark', doRead);
  }

  // however, if we've ended, then there's no point, and if we're already
  // reading, then it's unnecessary.
  if (state.ended || state.reading) {
    doRead = false;
    debug('reading or ended', doRead);
  }

  if (doRead) {
    debug('do read');
    state.reading = true;
    state.sync = true;
    // if the length is currently zero, then we *need* a readable event.
    if (state.length === 0)
      state.needReadable = true;
    // call internal read method
    this._read(state.highWaterMark);
    state.sync = false;
  }

  // If _read pushed data synchronously, then `reading` will be false,
  // and we need to re-evaluate how much data we can return to the user.
  if (doRead && !state.reading)
    n = howMuchToRead(nOrig, state);

  var ret;
  if (n > 0)
    ret = fromList(n, state);
  else
    ret = null;

  if (ret === null) {
    state.needReadable = true;
    n = 0;
  }

  state.length -= n;

  // If we have nothing in the buffer, then we want to know
  // as soon as we *do* get something into the buffer.
  if (state.length === 0 && !state.ended)
    state.needReadable = true;

  // If we tried to read() past the EOF, then emit end on the next tick.
  if (nOrig !== n && state.ended && state.length === 0)
    endReadable(this);

  if (ret !== null)
    this.emit('data', ret);

  return ret;
};

function chunkInvalid(state, chunk) {
  var er = null;
  if (!(Buffer.isBuffer(chunk)) &&
      typeof chunk !== 'string' &&
      chunk !== null &&
      chunk !== undefined &&
      !state.objectMode) {
    er = new TypeError('Invalid non-string/buffer chunk');
  }
  return er;
}


function onEofChunk(stream, state) {
  if (state.ended) return;
  if (state.decoder) {
    var chunk = state.decoder.end();
    if (chunk && chunk.length) {
      state.buffer.push(chunk);
      state.length += state.objectMode ? 1 : chunk.length;
    }
  }
  state.ended = true;

  // emit 'readable' now to make sure it gets picked up.
  emitReadable(stream);
}

// Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow.  This way, it might trigger
// a nextTick recursion warning, but that's not so bad.
function emitReadable(stream) {
  var state = stream._readableState;
  state.needReadable = false;
  if (!state.emittedReadable) {
    debug('emitReadable', state.flowing);
    state.emittedReadable = true;
    if (state.sync)
      processNextTick(emitReadable_, stream);
    else
      emitReadable_(stream);
  }
}

function emitReadable_(stream) {
  debug('emit readable');
  stream.emit('readable');
  flow(stream);
}


// at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data.  that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.
function maybeReadMore(stream, state) {
  if (!state.readingMore) {
    state.readingMore = true;
    processNextTick(maybeReadMore_, stream, state);
  }
}

function maybeReadMore_(stream, state) {
  var len = state.length;
  while (!state.reading && !state.flowing && !state.ended &&
         state.length < state.highWaterMark) {
    debug('maybeReadMore read 0');
    stream.read(0);
    if (len === state.length)
      // didn't get any data, stop spinning.
      break;
    else
      len = state.length;
  }
  state.readingMore = false;
}

// abstract method.  to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.
Readable.prototype._read = function(n) {
  this.emit('error', new Error('not implemented'));
};

Readable.prototype.pipe = function(dest, pipeOpts) {
  var src = this;
  var state = this._readableState;

  switch (state.pipesCount) {
    case 0:
      state.pipes = dest;
      break;
    case 1:
      state.pipes = [state.pipes, dest];
      break;
    default:
      state.pipes.push(dest);
      break;
  }
  state.pipesCount += 1;
  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);

  var doEnd = (!pipeOpts || pipeOpts.end !== false) &&
              dest !== process.stdout &&
              dest !== process.stderr;

  var endFn = doEnd ? onend : cleanup;
  if (state.endEmitted)
    processNextTick(endFn);
  else
    src.once('end', endFn);

  dest.on('unpipe', onunpipe);
  function onunpipe(readable) {
    debug('onunpipe');
    if (readable === src) {
      cleanup();
    }
  }

  function onend() {
    debug('onend');
    dest.end();
  }

  // when the dest drains, it reduces the awaitDrain counter
  // on the source.  This would be more elegant with a .once()
  // handler in flow(), but adding and removing repeatedly is
  // too slow.
  var ondrain = pipeOnDrain(src);
  dest.on('drain', ondrain);

  function cleanup() {
    debug('cleanup');
    // cleanup event handlers once the pipe is broken
    dest.removeListener('close', onclose);
    dest.removeListener('finish', onfinish);
    dest.removeListener('drain', ondrain);
    dest.removeListener('error', onerror);
    dest.removeListener('unpipe', onunpipe);
    src.removeListener('end', onend);
    src.removeListener('end', cleanup);
    src.removeListener('data', ondata);

    // if the reader is waiting for a drain event from this
    // specific writer, then it would cause it to never start
    // flowing again.
    // So, if this is awaiting a drain, then we just call it now.
    // If we don't know, then assume that we are waiting for one.
    if (state.awaitDrain &&
        (!dest._writableState || dest._writableState.needDrain))
      ondrain();
  }

  src.on('data', ondata);
  function ondata(chunk) {
    debug('ondata');
    var ret = dest.write(chunk);
    if (false === ret) {
      debug('false write response, pause',
            src._readableState.awaitDrain);
      src._readableState.awaitDrain++;
      src.pause();
    }
  }

  // if the dest has an error, then stop piping into it.
  // however, don't suppress the throwing behavior for this.
  function onerror(er) {
    debug('onerror', er);
    unpipe();
    dest.removeListener('error', onerror);
    if (EElistenerCount(dest, 'error') === 0)
      dest.emit('error', er);
  }
  // This is a brutally ugly hack to make sure that our error handler
  // is attached before any userland ones.  NEVER DO THIS.
  if (!dest._events || !dest._events.error)
    dest.on('error', onerror);
  else if (isArray(dest._events.error))
    dest._events.error.unshift(onerror);
  else
    dest._events.error = [onerror, dest._events.error];


  // Both close and finish should trigger unpipe, but only once.
  function onclose() {
    dest.removeListener('finish', onfinish);
    unpipe();
  }
  dest.once('close', onclose);
  function onfinish() {
    debug('onfinish');
    dest.removeListener('close', onclose);
    unpipe();
  }
  dest.once('finish', onfinish);

  function unpipe() {
    debug('unpipe');
    src.unpipe(dest);
  }

  // tell the dest that it's being piped to
  dest.emit('pipe', src);

  // start the flow if it hasn't been started already.
  if (!state.flowing) {
    debug('pipe resume');
    src.resume();
  }

  return dest;
};

function pipeOnDrain(src) {
  return function() {
    var state = src._readableState;
    debug('pipeOnDrain', state.awaitDrain);
    if (state.awaitDrain)
      state.awaitDrain--;
    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
      state.flowing = true;
      flow(src);
    }
  };
}


Readable.prototype.unpipe = function(dest) {
  var state = this._readableState;

  // if we're not piping anywhere, then do nothing.
  if (state.pipesCount === 0)
    return this;

  // just one destination.  most common case.
  if (state.pipesCount === 1) {
    // passed in one, but it's not the right one.
    if (dest && dest !== state.pipes)
      return this;

    if (!dest)
      dest = state.pipes;

    // got a match.
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;
    if (dest)
      dest.emit('unpipe', this);
    return this;
  }

  // slow case. multiple pipe destinations.

  if (!dest) {
    // remove all.
    var dests = state.pipes;
    var len = state.pipesCount;
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;

    for (var i = 0; i < len; i++)
      dests[i].emit('unpipe', this);
    return this;
  }

  // try to find the right one.
  var i = indexOf(state.pipes, dest);
  if (i === -1)
    return this;

  state.pipes.splice(i, 1);
  state.pipesCount -= 1;
  if (state.pipesCount === 1)
    state.pipes = state.pipes[0];

  dest.emit('unpipe', this);

  return this;
};

// set up data events if they are asked for
// Ensure readable listeners eventually get something
Readable.prototype.on = function(ev, fn) {
  var res = Stream.prototype.on.call(this, ev, fn);

  // If listening to data, and it has not explicitly been paused,
  // then call resume to start the flow of data on the next tick.
  if (ev === 'data' && false !== this._readableState.flowing) {
    this.resume();
  }

  if (ev === 'readable' && this.readable) {
    var state = this._readableState;
    if (!state.readableListening) {
      state.readableListening = true;
      state.emittedReadable = false;
      state.needReadable = true;
      if (!state.reading) {
        processNextTick(nReadingNextTick, this);
      } else if (state.length) {
        emitReadable(this, state);
      }
    }
  }

  return res;
};
Readable.prototype.addListener = Readable.prototype.on;

function nReadingNextTick(self) {
  debug('readable nexttick read 0');
  self.read(0);
}

// pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.
Readable.prototype.resume = function() {
  var state = this._readableState;
  if (!state.flowing) {
    debug('resume');
    state.flowing = true;
    resume(this, state);
  }
  return this;
};

function resume(stream, state) {
  if (!state.resumeScheduled) {
    state.resumeScheduled = true;
    processNextTick(resume_, stream, state);
  }
}

function resume_(stream, state) {
  if (!state.reading) {
    debug('resume read 0');
    stream.read(0);
  }

  state.resumeScheduled = false;
  stream.emit('resume');
  flow(stream);
  if (state.flowing && !state.reading)
    stream.read(0);
}

Readable.prototype.pause = function() {
  debug('call pause flowing=%j', this._readableState.flowing);
  if (false !== this._readableState.flowing) {
    debug('pause');
    this._readableState.flowing = false;
    this.emit('pause');
  }
  return this;
};

function flow(stream) {
  var state = stream._readableState;
  debug('flow', state.flowing);
  if (state.flowing) {
    do {
      var chunk = stream.read();
    } while (null !== chunk && state.flowing);
  }
}

// wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.
Readable.prototype.wrap = function(stream) {
  var state = this._readableState;
  var paused = false;

  var self = this;
  stream.on('end', function() {
    debug('wrapped end');
    if (state.decoder && !state.ended) {
      var chunk = state.decoder.end();
      if (chunk && chunk.length)
        self.push(chunk);
    }

    self.push(null);
  });

  stream.on('data', function(chunk) {
    debug('wrapped data');
    if (state.decoder)
      chunk = state.decoder.write(chunk);

    // don't skip over falsy values in objectMode
    if (state.objectMode && (chunk === null || chunk === undefined))
      return;
    else if (!state.objectMode && (!chunk || !chunk.length))
      return;

    var ret = self.push(chunk);
    if (!ret) {
      paused = true;
      stream.pause();
    }
  });

  // proxy all the other methods.
  // important when wrapping filters and duplexes.
  for (var i in stream) {
    if (this[i] === undefined && typeof stream[i] === 'function') {
      this[i] = function(method) { return function() {
        return stream[method].apply(stream, arguments);
      }; }(i);
    }
  }

  // proxy certain important events.
  var events = ['error', 'close', 'destroy', 'pause', 'resume'];
  forEach(events, function(ev) {
    stream.on(ev, self.emit.bind(self, ev));
  });

  // when we try to consume some more bytes, simply unpause the
  // underlying stream.
  self._read = function(n) {
    debug('wrapped _read', n);
    if (paused) {
      paused = false;
      stream.resume();
    }
  };

  return self;
};


// exposed for testing purposes only.
Readable._fromList = fromList;

// Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
function fromList(n, state) {
  var list = state.buffer;
  var length = state.length;
  var stringMode = !!state.decoder;
  var objectMode = !!state.objectMode;
  var ret;

  // nothing in the list, definitely empty.
  if (list.length === 0)
    return null;

  if (length === 0)
    ret = null;
  else if (objectMode)
    ret = list.shift();
  else if (!n || n >= length) {
    // read it all, truncate the array.
    if (stringMode)
      ret = list.join('');
    else
      ret = Buffer.concat(list, length);
    list.length = 0;
  } else {
    // read just some of it.
    if (n < list[0].length) {
      // just take a part of the first list item.
      // slice is the same for buffers and strings.
      var buf = list[0];
      ret = buf.slice(0, n);
      list[0] = buf.slice(n);
    } else if (n === list[0].length) {
      // first list is a perfect match
      ret = list.shift();
    } else {
      // complex case.
      // we have enough to cover it, but it spans past the first buffer.
      if (stringMode)
        ret = '';
      else
        ret = new Buffer(n);

      var c = 0;
      for (var i = 0, l = list.length; i < l && c < n; i++) {
        var buf = list[0];
        var cpy = Math.min(n - c, buf.length);

        if (stringMode)
          ret += buf.slice(0, cpy);
        else
          buf.copy(ret, c, 0, cpy);

        if (cpy < buf.length)
          list[0] = buf.slice(cpy);
        else
          list.shift();

        c += cpy;
      }
    }
  }

  return ret;
}

function endReadable(stream) {
  var state = stream._readableState;

  // If we get here before consuming all the bytes, then that is a
  // bug in node.  Should never happen.
  if (state.length > 0)
    throw new Error('endReadable called on non-empty stream');

  if (!state.endEmitted) {
    state.ended = true;
    processNextTick(endReadableNT, state, stream);
  }
}

function endReadableNT(state, stream) {
  // Check that we didn't get one last unshift.
  if (!state.endEmitted && state.length === 0) {
    state.endEmitted = true;
    stream.readable = false;
    stream.emit('end');
  }
}

function forEach (xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}

function indexOf (xs, x) {
  for (var i = 0, l = xs.length; i < l; i++) {
    if (xs[i] === x) return i;
  }
  return -1;
}

}).call(this,require('_process'))
},{"./_stream_duplex":221,"_process":215,"buffer":18,"core-util-is":226,"events":208,"inherits":210,"isarray":212,"process-nextick-args":227,"string_decoder/":243,"util":4}],224:[function(require,module,exports){
// a transform stream is a readable/writable stream where you do
// something with the data.  Sometimes it's called a "filter",
// but that's not a great name for it, since that implies a thing where
// some bits pass through, and others are simply ignored.  (That would
// be a valid example of a transform, of course.)
//
// While the output is causally related to the input, it's not a
// necessarily symmetric or synchronous transformation.  For example,
// a zlib stream might take multiple plain-text writes(), and then
// emit a single compressed chunk some time in the future.
//
// Here's how this works:
//
// The Transform stream has all the aspects of the readable and writable
// stream classes.  When you write(chunk), that calls _write(chunk,cb)
// internally, and returns false if there's a lot of pending writes
// buffered up.  When you call read(), that calls _read(n) until
// there's enough pending readable data buffered up.
//
// In a transform stream, the written data is placed in a buffer.  When
// _read(n) is called, it transforms the queued up data, calling the
// buffered _write cb's as it consumes chunks.  If consuming a single
// written chunk would result in multiple output chunks, then the first
// outputted bit calls the readcb, and subsequent chunks just go into
// the read buffer, and will cause it to emit 'readable' if necessary.
//
// This way, back-pressure is actually determined by the reading side,
// since _read has to be called to start processing a new chunk.  However,
// a pathological inflate type of transform can cause excessive buffering
// here.  For example, imagine a stream where every byte of input is
// interpreted as an integer from 0-255, and then results in that many
// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
// 1kb of data being output.  In this case, you could write a very small
// amount of input, and end up with a very large amount of output.  In
// such a pathological inflating mechanism, there'd be no way to tell
// the system to stop doing the transform.  A single 4MB write could
// cause the system to run out of memory.
//
// However, even in such a pathological case, only a single written chunk
// would be consumed, and then the rest would wait (un-transformed) until
// the results of the previous transformed chunk were consumed.

'use strict';

module.exports = Transform;

var Duplex = require('./_stream_duplex');

/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/

util.inherits(Transform, Duplex);


function TransformState(stream) {
  this.afterTransform = function(er, data) {
    return afterTransform(stream, er, data);
  };

  this.needTransform = false;
  this.transforming = false;
  this.writecb = null;
  this.writechunk = null;
}

function afterTransform(stream, er, data) {
  var ts = stream._transformState;
  ts.transforming = false;

  var cb = ts.writecb;

  if (!cb)
    return stream.emit('error', new Error('no writecb in Transform class'));

  ts.writechunk = null;
  ts.writecb = null;

  if (data !== null && data !== undefined)
    stream.push(data);

  if (cb)
    cb(er);

  var rs = stream._readableState;
  rs.reading = false;
  if (rs.needReadable || rs.length < rs.highWaterMark) {
    stream._read(rs.highWaterMark);
  }
}


function Transform(options) {
  if (!(this instanceof Transform))
    return new Transform(options);

  Duplex.call(this, options);

  this._transformState = new TransformState(this);

  // when the writable side finishes, then flush out anything remaining.
  var stream = this;

  // start out asking for a readable event once data is transformed.
  this._readableState.needReadable = true;

  // we have implemented the _read method, and done the other things
  // that Readable wants before the first _read call, so unset the
  // sync guard flag.
  this._readableState.sync = false;

  if (options) {
    if (typeof options.transform === 'function')
      this._transform = options.transform;

    if (typeof options.flush === 'function')
      this._flush = options.flush;
  }

  this.once('prefinish', function() {
    if (typeof this._flush === 'function')
      this._flush(function(er) {
        done(stream, er);
      });
    else
      done(stream);
  });
}

Transform.prototype.push = function(chunk, encoding) {
  this._transformState.needTransform = false;
  return Duplex.prototype.push.call(this, chunk, encoding);
};

// This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side.  You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk.  If you pass
// an error, then that'll put the hurt on the whole operation.  If you
// never call cb(), then you'll never get another chunk.
Transform.prototype._transform = function(chunk, encoding, cb) {
  throw new Error('not implemented');
};

Transform.prototype._write = function(chunk, encoding, cb) {
  var ts = this._transformState;
  ts.writecb = cb;
  ts.writechunk = chunk;
  ts.writeencoding = encoding;
  if (!ts.transforming) {
    var rs = this._readableState;
    if (ts.needTransform ||
        rs.needReadable ||
        rs.length < rs.highWaterMark)
      this._read(rs.highWaterMark);
  }
};

// Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.
Transform.prototype._read = function(n) {
  var ts = this._transformState;

  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
    ts.transforming = true;
    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
  } else {
    // mark that we need a transform, so that any data that comes in
    // will get processed, now that we've asked for it.
    ts.needTransform = true;
  }
};


function done(stream, er) {
  if (er)
    return stream.emit('error', er);

  // if there's nothing in the write buffer, then that means
  // that nothing more will ever be provided
  var ws = stream._writableState;
  var ts = stream._transformState;

  if (ws.length)
    throw new Error('calling transform done when ws.length != 0');

  if (ts.transforming)
    throw new Error('calling transform done when still transforming');

  return stream.push(null);
}

},{"./_stream_duplex":221,"core-util-is":226,"inherits":210}],225:[function(require,module,exports){
// A bit simpler than readable streams.
// Implement an async ._write(chunk, cb), and it'll handle all
// the drain event emission and buffering.

'use strict';

module.exports = Writable;

/*<replacement>*/
var processNextTick = require('process-nextick-args');
/*</replacement>*/


/*<replacement>*/
var Buffer = require('buffer').Buffer;
/*</replacement>*/

Writable.WritableState = WritableState;


/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/


/*<replacement>*/
var internalUtil = {
  deprecate: require('util-deprecate')
};
/*</replacement>*/



/*<replacement>*/
var Stream;
(function (){try{
  Stream = require('st' + 'ream');
}catch(_){}finally{
  if (!Stream)
    Stream = require('events').EventEmitter;
}}())
/*</replacement>*/

var Buffer = require('buffer').Buffer;

util.inherits(Writable, Stream);

function nop() {}

function WriteReq(chunk, encoding, cb) {
  this.chunk = chunk;
  this.encoding = encoding;
  this.callback = cb;
  this.next = null;
}

function WritableState(options, stream) {
  var Duplex = require('./_stream_duplex');

  options = options || {};

  // object stream flag to indicate whether or not this stream
  // contains buffers or objects.
  this.objectMode = !!options.objectMode;

  if (stream instanceof Duplex)
    this.objectMode = this.objectMode || !!options.writableObjectMode;

  // the point at which write() starts returning false
  // Note: 0 is a valid value, means that we always return false if
  // the entire buffer is not flushed immediately on write()
  var hwm = options.highWaterMark;
  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
  this.highWaterMark = (hwm || hwm === 0) ? hwm : defaultHwm;

  // cast to ints.
  this.highWaterMark = ~~this.highWaterMark;

  this.needDrain = false;
  // at the start of calling end()
  this.ending = false;
  // when end() has been called, and returned
  this.ended = false;
  // when 'finish' is emitted
  this.finished = false;

  // should we decode strings into buffers before passing to _write?
  // this is here so that some node-core streams can optimize string
  // handling at a lower level.
  var noDecode = options.decodeStrings === false;
  this.decodeStrings = !noDecode;

  // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.
  this.defaultEncoding = options.defaultEncoding || 'utf8';

  // not an actual buffer we keep track of, but a measurement
  // of how much we're waiting to get pushed to some underlying
  // socket or file.
  this.length = 0;

  // a flag to see when we're in the middle of a write.
  this.writing = false;

  // when true all writes will be buffered until .uncork() call
  this.corked = 0;

  // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, because any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.
  this.sync = true;

  // a flag to know if we're processing previously buffered items, which
  // may call the _write() callback in the same tick, so that we don't
  // end up in an overlapped onwrite situation.
  this.bufferProcessing = false;

  // the callback that's passed to _write(chunk,cb)
  this.onwrite = function(er) {
    onwrite(stream, er);
  };

  // the callback that the user supplies to write(chunk,encoding,cb)
  this.writecb = null;

  // the amount that is being written when _write is called.
  this.writelen = 0;

  this.bufferedRequest = null;
  this.lastBufferedRequest = null;

  // number of pending user-supplied write callbacks
  // this must be 0 before 'finish' can be emitted
  this.pendingcb = 0;

  // emit prefinish if the only thing we're waiting for is _write cbs
  // This is relevant for synchronous Transform streams
  this.prefinished = false;

  // True if the error was already emitted and should not be thrown again
  this.errorEmitted = false;
}

WritableState.prototype.getBuffer = function writableStateGetBuffer() {
  var current = this.bufferedRequest;
  var out = [];
  while (current) {
    out.push(current);
    current = current.next;
  }
  return out;
};

(function (){try {
Object.defineProperty(WritableState.prototype, 'buffer', {
  get: internalUtil.deprecate(function() {
    return this.getBuffer();
  }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' +
     'instead.')
});
}catch(_){}}());


function Writable(options) {
  var Duplex = require('./_stream_duplex');

  // Writable ctor is applied to Duplexes, though they're not
  // instanceof Writable, they're instanceof Readable.
  if (!(this instanceof Writable) && !(this instanceof Duplex))
    return new Writable(options);

  this._writableState = new WritableState(options, this);

  // legacy.
  this.writable = true;

  if (options) {
    if (typeof options.write === 'function')
      this._write = options.write;

    if (typeof options.writev === 'function')
      this._writev = options.writev;
  }

  Stream.call(this);
}

// Otherwise people can pipe Writable streams, which is just wrong.
Writable.prototype.pipe = function() {
  this.emit('error', new Error('Cannot pipe. Not readable.'));
};


function writeAfterEnd(stream, cb) {
  var er = new Error('write after end');
  // TODO: defer error events consistently everywhere, not just the cb
  stream.emit('error', er);
  processNextTick(cb, er);
}

// If we get something that is not a buffer, string, null, or undefined,
// and we're not in objectMode, then that's an error.
// Otherwise stream chunks are all considered to be of length=1, and the
// watermarks determine how many objects to keep in the buffer, rather than
// how many bytes or characters.
function validChunk(stream, state, chunk, cb) {
  var valid = true;

  if (!(Buffer.isBuffer(chunk)) &&
      typeof chunk !== 'string' &&
      chunk !== null &&
      chunk !== undefined &&
      !state.objectMode) {
    var er = new TypeError('Invalid non-string/buffer chunk');
    stream.emit('error', er);
    processNextTick(cb, er);
    valid = false;
  }
  return valid;
}

Writable.prototype.write = function(chunk, encoding, cb) {
  var state = this._writableState;
  var ret = false;

  if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (Buffer.isBuffer(chunk))
    encoding = 'buffer';
  else if (!encoding)
    encoding = state.defaultEncoding;

  if (typeof cb !== 'function')
    cb = nop;

  if (state.ended)
    writeAfterEnd(this, cb);
  else if (validChunk(this, state, chunk, cb)) {
    state.pendingcb++;
    ret = writeOrBuffer(this, state, chunk, encoding, cb);
  }

  return ret;
};

Writable.prototype.cork = function() {
  var state = this._writableState;

  state.corked++;
};

Writable.prototype.uncork = function() {
  var state = this._writableState;

  if (state.corked) {
    state.corked--;

    if (!state.writing &&
        !state.corked &&
        !state.finished &&
        !state.bufferProcessing &&
        state.bufferedRequest)
      clearBuffer(this, state);
  }
};

Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
  // node::ParseEncoding() requires lower case.
  if (typeof encoding === 'string')
    encoding = encoding.toLowerCase();
  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64',
'ucs2', 'ucs-2','utf16le', 'utf-16le', 'raw']
.indexOf((encoding + '').toLowerCase()) > -1))
    throw new TypeError('Unknown encoding: ' + encoding);
  this._writableState.defaultEncoding = encoding;
};

function decodeChunk(state, chunk, encoding) {
  if (!state.objectMode &&
      state.decodeStrings !== false &&
      typeof chunk === 'string') {
    chunk = new Buffer(chunk, encoding);
  }
  return chunk;
}

// if we're already writing something, then just put this
// in the queue, and wait our turn.  Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.
function writeOrBuffer(stream, state, chunk, encoding, cb) {
  chunk = decodeChunk(state, chunk, encoding);

  if (Buffer.isBuffer(chunk))
    encoding = 'buffer';
  var len = state.objectMode ? 1 : chunk.length;

  state.length += len;

  var ret = state.length < state.highWaterMark;
  // we must ensure that previous needDrain will not be reset to false.
  if (!ret)
    state.needDrain = true;

  if (state.writing || state.corked) {
    var last = state.lastBufferedRequest;
    state.lastBufferedRequest = new WriteReq(chunk, encoding, cb);
    if (last) {
      last.next = state.lastBufferedRequest;
    } else {
      state.bufferedRequest = state.lastBufferedRequest;
    }
  } else {
    doWrite(stream, state, false, len, chunk, encoding, cb);
  }

  return ret;
}

function doWrite(stream, state, writev, len, chunk, encoding, cb) {
  state.writelen = len;
  state.writecb = cb;
  state.writing = true;
  state.sync = true;
  if (writev)
    stream._writev(chunk, state.onwrite);
  else
    stream._write(chunk, encoding, state.onwrite);
  state.sync = false;
}

function onwriteError(stream, state, sync, er, cb) {
  --state.pendingcb;
  if (sync)
    processNextTick(cb, er);
  else
    cb(er);

  stream._writableState.errorEmitted = true;
  stream.emit('error', er);
}

function onwriteStateUpdate(state) {
  state.writing = false;
  state.writecb = null;
  state.length -= state.writelen;
  state.writelen = 0;
}

function onwrite(stream, er) {
  var state = stream._writableState;
  var sync = state.sync;
  var cb = state.writecb;

  onwriteStateUpdate(state);

  if (er)
    onwriteError(stream, state, sync, er, cb);
  else {
    // Check if we're actually ready to finish, but don't emit yet
    var finished = needFinish(state);

    if (!finished &&
        !state.corked &&
        !state.bufferProcessing &&
        state.bufferedRequest) {
      clearBuffer(stream, state);
    }

    if (sync) {
      processNextTick(afterWrite, stream, state, finished, cb);
    } else {
      afterWrite(stream, state, finished, cb);
    }
  }
}

function afterWrite(stream, state, finished, cb) {
  if (!finished)
    onwriteDrain(stream, state);
  state.pendingcb--;
  cb();
  finishMaybe(stream, state);
}

// Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.
function onwriteDrain(stream, state) {
  if (state.length === 0 && state.needDrain) {
    state.needDrain = false;
    stream.emit('drain');
  }
}


// if there's something in the buffer waiting, then process it
function clearBuffer(stream, state) {
  state.bufferProcessing = true;
  var entry = state.bufferedRequest;

  if (stream._writev && entry && entry.next) {
    // Fast case, write everything using _writev()
    var buffer = [];
    var cbs = [];
    while (entry) {
      cbs.push(entry.callback);
      buffer.push(entry);
      entry = entry.next;
    }

    // count the one we are adding, as well.
    // TODO(isaacs) clean this up
    state.pendingcb++;
    state.lastBufferedRequest = null;
    doWrite(stream, state, true, state.length, buffer, '', function(err) {
      for (var i = 0; i < cbs.length; i++) {
        state.pendingcb--;
        cbs[i](err);
      }
    });

    // Clear buffer
  } else {
    // Slow case, write chunks one-by-one
    while (entry) {
      var chunk = entry.chunk;
      var encoding = entry.encoding;
      var cb = entry.callback;
      var len = state.objectMode ? 1 : chunk.length;

      doWrite(stream, state, false, len, chunk, encoding, cb);
      entry = entry.next;
      // if we didn't call the onwrite immediately, then
      // it means that we need to wait until it does.
      // also, that means that the chunk and cb are currently
      // being processed, so move the buffer counter past them.
      if (state.writing) {
        break;
      }
    }

    if (entry === null)
      state.lastBufferedRequest = null;
  }
  state.bufferedRequest = entry;
  state.bufferProcessing = false;
}

Writable.prototype._write = function(chunk, encoding, cb) {
  cb(new Error('not implemented'));
};

Writable.prototype._writev = null;

Writable.prototype.end = function(chunk, encoding, cb) {
  var state = this._writableState;

  if (typeof chunk === 'function') {
    cb = chunk;
    chunk = null;
    encoding = null;
  } else if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (chunk !== null && chunk !== undefined)
    this.write(chunk, encoding);

  // .end() fully uncorks
  if (state.corked) {
    state.corked = 1;
    this.uncork();
  }

  // ignore unnecessary end() calls.
  if (!state.ending && !state.finished)
    endWritable(this, state, cb);
};


function needFinish(state) {
  return (state.ending &&
          state.length === 0 &&
          state.bufferedRequest === null &&
          !state.finished &&
          !state.writing);
}

function prefinish(stream, state) {
  if (!state.prefinished) {
    state.prefinished = true;
    stream.emit('prefinish');
  }
}

function finishMaybe(stream, state) {
  var need = needFinish(state);
  if (need) {
    if (state.pendingcb === 0) {
      prefinish(stream, state);
      state.finished = true;
      stream.emit('finish');
    } else {
      prefinish(stream, state);
    }
  }
  return need;
}

function endWritable(stream, state, cb) {
  state.ending = true;
  finishMaybe(stream, state);
  if (cb) {
    if (state.finished)
      processNextTick(cb);
    else
      stream.once('finish', cb);
  }
  state.ended = true;
}

},{"./_stream_duplex":221,"buffer":18,"core-util-is":226,"events":208,"inherits":210,"process-nextick-args":227,"util-deprecate":228}],226:[function(require,module,exports){
(function (Buffer){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
  return Array.isArray(ar);
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return isObject(e) &&
      (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

function isBuffer(arg) {
  return Buffer.isBuffer(arg);
}
exports.isBuffer = isBuffer;

function objectToString(o) {
  return Object.prototype.toString.call(o);
}
}).call(this,{"isBuffer":require("../../../../insert-module-globals/node_modules/is-buffer/index.js")})
},{"../../../../insert-module-globals/node_modules/is-buffer/index.js":211}],227:[function(require,module,exports){
(function (process){
'use strict';
module.exports = nextTick;

function nextTick(fn) {
  var args = new Array(arguments.length - 1);
  var i = 0;
  while (i < args.length) {
    args[i++] = arguments[i];
  }
  process.nextTick(function afterTick() {
    fn.apply(null, args);
  });
}

}).call(this,require('_process'))
},{"_process":215}],228:[function(require,module,exports){
(function (global){

/**
 * Module exports.
 */

module.exports = deprecate;

/**
 * Mark that a method should not be used.
 * Returns a modified function which warns once by default.
 *
 * If `localStorage.noDeprecation = true` is set, then it is a no-op.
 *
 * If `localStorage.throwDeprecation = true` is set, then deprecated functions
 * will throw an Error when invoked.
 *
 * If `localStorage.traceDeprecation = true` is set, then deprecated functions
 * will invoke `console.trace()` instead of `console.error()`.
 *
 * @param {Function} fn - the function to deprecate
 * @param {String} msg - the string to print to the console when `fn` is invoked
 * @returns {Function} a new "deprecated" version of `fn`
 * @api public
 */

function deprecate (fn, msg) {
  if (config('noDeprecation')) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (config('throwDeprecation')) {
        throw new Error(msg);
      } else if (config('traceDeprecation')) {
        console.trace(msg);
      } else {
        console.warn(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
}

/**
 * Checks `localStorage` for boolean values for the given `name`.
 *
 * @param {String} name
 * @returns {Boolean}
 * @api private
 */

function config (name) {
  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
  try {
    if (!global.localStorage) return false;
  } catch (_) {
    return false;
  }
  var val = global.localStorage[name];
  if (null == val) return false;
  return String(val).toLowerCase() === 'true';
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],229:[function(require,module,exports){
module.exports = require("./lib/_stream_passthrough.js")

},{"./lib/_stream_passthrough.js":222}],230:[function(require,module,exports){
var Stream = (function (){
  try {
    return require('st' + 'ream'); // hack to fix a circular dependency issue when used with browserify
  } catch(_){}
}());
exports = module.exports = require('./lib/_stream_readable.js');
exports.Stream = Stream || exports;
exports.Readable = exports;
exports.Writable = require('./lib/_stream_writable.js');
exports.Duplex = require('./lib/_stream_duplex.js');
exports.Transform = require('./lib/_stream_transform.js');
exports.PassThrough = require('./lib/_stream_passthrough.js');

},{"./lib/_stream_duplex.js":221,"./lib/_stream_passthrough.js":222,"./lib/_stream_readable.js":223,"./lib/_stream_transform.js":224,"./lib/_stream_writable.js":225}],231:[function(require,module,exports){
module.exports = require("./lib/_stream_transform.js")

},{"./lib/_stream_transform.js":224}],232:[function(require,module,exports){
module.exports = require("./lib/_stream_writable.js")

},{"./lib/_stream_writable.js":225}],233:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

module.exports = Stream;

var EE = require('events').EventEmitter;
var inherits = require('inherits');

inherits(Stream, EE);
Stream.Readable = require('readable-stream/readable.js');
Stream.Writable = require('readable-stream/writable.js');
Stream.Duplex = require('readable-stream/duplex.js');
Stream.Transform = require('readable-stream/transform.js');
Stream.PassThrough = require('readable-stream/passthrough.js');

// Backwards-compat with node 0.4.x
Stream.Stream = Stream;



// old-style streams.  Note that the pipe method (the only relevant
// part of this class) is overridden in the Readable class.

function Stream() {
  EE.call(this);
}

Stream.prototype.pipe = function(dest, options) {
  var source = this;

  function ondata(chunk) {
    if (dest.writable) {
      if (false === dest.write(chunk) && source.pause) {
        source.pause();
      }
    }
  }

  source.on('data', ondata);

  function ondrain() {
    if (source.readable && source.resume) {
      source.resume();
    }
  }

  dest.on('drain', ondrain);

  // If the 'end' option is not supplied, dest.end() will be called when
  // source gets the 'end' or 'close' events.  Only dest.end() once.
  if (!dest._isStdio && (!options || options.end !== false)) {
    source.on('end', onend);
    source.on('close', onclose);
  }

  var didOnEnd = false;
  function onend() {
    if (didOnEnd) return;
    didOnEnd = true;

    dest.end();
  }


  function onclose() {
    if (didOnEnd) return;
    didOnEnd = true;

    if (typeof dest.destroy === 'function') dest.destroy();
  }

  // don't leave dangling pipes when there are errors.
  function onerror(er) {
    cleanup();
    if (EE.listenerCount(this, 'error') === 0) {
      throw er; // Unhandled stream error in pipe.
    }
  }

  source.on('error', onerror);
  dest.on('error', onerror);

  // remove all the event listeners that were added.
  function cleanup() {
    source.removeListener('data', ondata);
    dest.removeListener('drain', ondrain);

    source.removeListener('end', onend);
    source.removeListener('close', onclose);

    source.removeListener('error', onerror);
    dest.removeListener('error', onerror);

    source.removeListener('end', cleanup);
    source.removeListener('close', cleanup);

    dest.removeListener('close', cleanup);
  }

  source.on('end', cleanup);
  source.on('close', cleanup);

  dest.on('close', cleanup);

  dest.emit('pipe', source);

  // Allow for unix-like usage: A.pipe(B).pipe(C)
  return dest;
};

},{"events":208,"inherits":210,"readable-stream/duplex.js":220,"readable-stream/passthrough.js":229,"readable-stream/readable.js":230,"readable-stream/transform.js":231,"readable-stream/writable.js":232}],234:[function(require,module,exports){
var ClientRequest = require('./lib/request')
var extend = require('xtend')
var statusCodes = require('builtin-status-codes')
var url = require('url')

var http = exports

http.request = function (opts, cb) {
	if (typeof opts === 'string')
		opts = url.parse(opts)
	else
		opts = extend(opts)

	var protocol = opts.protocol || ''
	var host = opts.hostname || opts.host
	var port = opts.port
	var path = opts.path || '/'

	// Necessary for IPv6 addresses
	if (host && host.indexOf(':') !== -1)
		host = '[' + host + ']'

	// This may be a relative url. The browser should always be able to interpret it correctly.
	opts.url = (host ? (protocol + '//' + host) : '') + (port ? ':' + port : '') + path
	opts.method = (opts.method || 'GET').toUpperCase()
	opts.headers = opts.headers || {}

	// Also valid opts.auth, opts.mode

	var req = new ClientRequest(opts)
	if (cb)
		req.on('response', cb)
	return req
}

http.get = function get (opts, cb) {
	var req = http.request(opts, cb)
	req.end()
	return req
}

http.Agent = function () {}
http.Agent.defaultMaxSockets = 4

http.STATUS_CODES = statusCodes

http.METHODS = [
	'CHECKOUT',
	'CONNECT',
	'COPY',
	'DELETE',
	'GET',
	'HEAD',
	'LOCK',
	'M-SEARCH',
	'MERGE',
	'MKACTIVITY',
	'MKCOL',
	'MOVE',
	'NOTIFY',
	'OPTIONS',
	'PATCH',
	'POST',
	'PROPFIND',
	'PROPPATCH',
	'PURGE',
	'PUT',
	'REPORT',
	'SEARCH',
	'SUBSCRIBE',
	'TRACE',
	'UNLOCK',
	'UNSUBSCRIBE'
]
},{"./lib/request":236,"builtin-status-codes":238,"url":245,"xtend":250}],235:[function(require,module,exports){
(function (global){
exports.fetch = isFunction(global.fetch) && isFunction(global.ReadableByteStream)

exports.blobConstructor = false
try {
	new Blob([new ArrayBuffer(1)])
	exports.blobConstructor = true
} catch (e) {}

var xhr = new global.XMLHttpRequest()
// If location.host is empty, e.g. if this page/worker was loaded
// from a Blob, then use example.com to avoid an error
xhr.open('GET', global.location.host ? '/' : 'https://example.com')

function checkTypeSupport (type) {
	try {
		xhr.responseType = type
		return xhr.responseType === type
	} catch (e) {}
	return false
}

// For some strange reason, Safari 7.0 reports typeof global.ArrayBuffer === 'object'.
// Safari 7.1 appears to have fixed this bug.
var haveArrayBuffer = typeof global.ArrayBuffer !== 'undefined'
var haveSlice = haveArrayBuffer && isFunction(global.ArrayBuffer.prototype.slice)

exports.arraybuffer = haveArrayBuffer && checkTypeSupport('arraybuffer')
// These next two tests unavoidably show warnings in Chrome. Since fetch will always
// be used if it's available, just return false for these to avoid the warnings.
exports.msstream = !exports.fetch && haveSlice && checkTypeSupport('ms-stream')
exports.mozchunkedarraybuffer = !exports.fetch && haveArrayBuffer &&
	checkTypeSupport('moz-chunked-arraybuffer')
exports.overrideMimeType = isFunction(xhr.overrideMimeType)
exports.vbArray = isFunction(global.VBArray)

function isFunction (value) {
  return typeof value === 'function'
}

xhr = null // Help gc

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],236:[function(require,module,exports){
(function (process,global,Buffer){
// var Base64 = require('Base64')
var capability = require('./capability')
var foreach = require('foreach')
var indexOf = require('indexof')
var inherits = require('inherits')
var keys = require('object-keys')
var response = require('./response')
var stream = require('stream')

var IncomingMessage = response.IncomingMessage
var rStates = response.readyStates

function decideMode (preferBinary) {
	if (capability.fetch) {
		return 'fetch'
	} else if (capability.mozchunkedarraybuffer) {
		return 'moz-chunked-arraybuffer'
	} else if (capability.msstream) {
		return 'ms-stream'
	} else if (capability.arraybuffer && preferBinary) {
		return 'arraybuffer'
	} else if (capability.vbArray && preferBinary) {
		return 'text:vbarray'
	} else {
		return 'text'
	}
}

var ClientRequest = module.exports = function (opts) {
	var self = this
	stream.Writable.call(self)

	self._opts = opts
	self._body = []
	self._headers = {}
	if (opts.auth)
		self.setHeader('Authorization', 'Basic ' + new Buffer(opts.auth).toString('base64'))
	foreach(keys(opts.headers), function (name) {
		self.setHeader(name, opts.headers[name])
	})

	var preferBinary
	if (opts.mode === 'prefer-streaming') {
		// If streaming is a high priority but binary compatibility and
		// the accuracy of the 'content-type' header aren't
		preferBinary = false
	} else if (opts.mode === 'allow-wrong-content-type') {
		// If streaming is more important than preserving the 'content-type' header
		preferBinary = !capability.overrideMimeType
	} else if (!opts.mode || opts.mode === 'default' || opts.mode === 'prefer-fast') {
		// Use binary if text streaming may corrupt data or the content-type header, or for speed
		preferBinary = true
	} else {
		throw new Error('Invalid value for opts.mode')
	}
	self._mode = decideMode(preferBinary)

	self.on('finish', function () {
		self._onFinish()
	})
}

inherits(ClientRequest, stream.Writable)

ClientRequest.prototype.setHeader = function (name, value) {
	var self = this
	var lowerName = name.toLowerCase()
	// This check is not necessary, but it prevents warnings from browsers about setting unsafe
	// headers. To be honest I'm not entirely sure hiding these warnings is a good thing, but
	// http-browserify did it, so I will too.
	if (indexOf(unsafeHeaders, lowerName) !== -1)
		return

	self._headers[lowerName] = {
		name: name,
		value: value
	}
}

ClientRequest.prototype.getHeader = function (name) {
	var self = this
	return self._headers[name.toLowerCase()].value
}

ClientRequest.prototype.removeHeader = function (name) {
	var self = this
	delete self._headers[name.toLowerCase()]
}

ClientRequest.prototype._onFinish = function () {
	var self = this

	if (self._destroyed)
		return
	var opts = self._opts

	var headersObj = self._headers
	var body
	if (opts.method === 'POST' || opts.method === 'PUT') {
		if (capability.blobConstructor) {
			body = new global.Blob(self._body.map(function (buffer) {
				return buffer.toArrayBuffer()
			}), {
				type: (headersObj['content-type'] || {}).value || ''
			})
		} else {
			// get utf8 string
			body = Buffer.concat(self._body).toString()
		}
	}

	if (self._mode === 'fetch') {
		var headers = keys(headersObj).map(function (name) {
			return [headersObj[name].name, headersObj[name].value]
		})

		global.fetch(self._opts.url, {
			method: self._opts.method,
			headers: headers,
			body: body,
			mode: 'cors',
			credentials: opts.withCredentials ? 'include' : 'same-origin'
		}).then(function (response) {
			self._fetchResponse = response
			self._connect()
		}).then(undefined, function (reason) {
			self.emit('error', reason)
		})
	} else {
		var xhr = self._xhr = new global.XMLHttpRequest()
		try {
			xhr.open(self._opts.method, self._opts.url, true)
		} catch (err) {
			process.nextTick(function () {
				self.emit('error', err)
			})
			return
		}

		// Can't set responseType on really old browsers
		if ('responseType' in xhr)
			xhr.responseType = self._mode.split(':')[0]

		if ('withCredentials' in xhr)
			xhr.withCredentials = !!opts.withCredentials

		if (self._mode === 'text' && 'overrideMimeType' in xhr)
			xhr.overrideMimeType('text/plain; charset=x-user-defined')

		foreach(keys(headersObj), function (name) {
			xhr.setRequestHeader(headersObj[name].name, headersObj[name].value)
		})

		self._response = null
		xhr.onreadystatechange = function () {
			switch (xhr.readyState) {
				case rStates.LOADING:
				case rStates.DONE:
					self._onXHRProgress()
					break
			}
		}
		// Necessary for streaming in Firefox, since xhr.response is ONLY defined
		// in onprogress, not in onreadystatechange with xhr.readyState = 3
		if (self._mode === 'moz-chunked-arraybuffer') {
			xhr.onprogress = function () {
				self._onXHRProgress()
			}
		}

		xhr.onerror = function () {
			if (self._destroyed)
				return
			self.emit('error', new Error('XHR error'))
		}

		try {
			xhr.send(body)
		} catch (err) {
			process.nextTick(function () {
				self.emit('error', err)
			})
			return
		}
	}
}

/**
 * Checks if xhr.status is readable. Even though the spec says it should
 * be available in readyState 3, accessing it throws an exception in IE8
 */
function statusValid (xhr) {
	try {
		return (xhr.status !== null)
	} catch (e) {
		return false
	}
}

ClientRequest.prototype._onXHRProgress = function () {
	var self = this

	if (!statusValid(self._xhr) || self._destroyed)
		return

	if (!self._response)
		self._connect()

	self._response._onXHRProgress()
}

ClientRequest.prototype._connect = function () {
	var self = this

	if (self._destroyed)
		return

	self._response = new IncomingMessage(self._xhr, self._fetchResponse, self._mode)
	self.emit('response', self._response)
}

ClientRequest.prototype._write = function (chunk, encoding, cb) {
	var self = this

	self._body.push(chunk)
	cb()
}

ClientRequest.prototype.abort = ClientRequest.prototype.destroy = function () {
	var self = this
	self._destroyed = true
	if (self._response)
		self._response._destroyed = true
	if (self._xhr)
		self._xhr.abort()
	// Currently, there isn't a way to truly abort a fetch.
	// If you like bikeshedding, see https://github.com/whatwg/fetch/issues/27
}

ClientRequest.prototype.end = function (data, encoding, cb) {
	var self = this
	if (typeof data === 'function') {
		cb = data
		data = undefined
	}

	stream.Writable.prototype.end.call(self, data, encoding, cb)
}

ClientRequest.prototype.flushHeaders = function () {}
ClientRequest.prototype.setTimeout = function () {}
ClientRequest.prototype.setNoDelay = function () {}
ClientRequest.prototype.setSocketKeepAlive = function () {}

// Taken from http://www.w3.org/TR/XMLHttpRequest/#the-setrequestheader%28%29-method
var unsafeHeaders = [
	'accept-charset',
	'accept-encoding',
	'access-control-request-headers',
	'access-control-request-method',
	'connection',
	'content-length',
	'cookie',
	'cookie2',
	'date',
	'dnt',
	'expect',
	'host',
	'keep-alive',
	'origin',
	'referer',
	'te',
	'trailer',
	'transfer-encoding',
	'upgrade',
	'user-agent',
	'via'
]

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
},{"./capability":235,"./response":237,"_process":215,"buffer":18,"foreach":239,"indexof":240,"inherits":210,"object-keys":241,"stream":233}],237:[function(require,module,exports){
(function (process,global,Buffer){
var capability = require('./capability')
var foreach = require('foreach')
var inherits = require('inherits')
var stream = require('stream')

var rStates = exports.readyStates = {
	UNSENT: 0,
	OPENED: 1,
	HEADERS_RECEIVED: 2,
	LOADING: 3,
	DONE: 4
}

var IncomingMessage = exports.IncomingMessage = function (xhr, response, mode) {
	var self = this
	stream.Readable.call(self)

	self._mode = mode
	self.headers = {}
	self.rawHeaders = []
	self.trailers = {}
	self.rawTrailers = []

	// Fake the 'close' event, but only once 'end' fires
	self.on('end', function () {
		// The nextTick is necessary to prevent the 'request' module from causing an infinite loop
		process.nextTick(function () {
			self.emit('close')
		})
	})

	if (mode === 'fetch') {
		self._fetchResponse = response

		self.statusCode = response.status
		self.statusMessage = response.statusText
		// backwards compatible version of for (<item> of <iterable>):
		// for (var <item>,_i,_it = <iterable>[Symbol.iterator](); <item> = (_i = _it.next()).value,!_i.done;)
		for (var header, _i, _it = response.headers[Symbol.iterator](); header = (_i = _it.next()).value, !_i.done;) {
			self.headers[header[0].toLowerCase()] = header[1]
			self.rawHeaders.push(header[0], header[1])
		}

		// TODO: this doesn't respect backpressure. Once WritableStream is available, this can be fixed
		var reader = response.body.getReader()
		function read () {
			reader.read().then(function (result) {
				if (self._destroyed)
					return
				if (result.done) {
					self.push(null)
					return
				}
				self.push(new Buffer(result.value))
				read()
			})
		}
		read()

	} else {
		self._xhr = xhr
		self._pos = 0

		self.statusCode = xhr.status
		self.statusMessage = xhr.statusText
		var headers = xhr.getAllResponseHeaders().split(/\r?\n/)
		foreach(headers, function (header) {
			var matches = header.match(/^([^:]+):\s*(.*)/)
			if (matches) {
				var key = matches[1].toLowerCase()
				if (self.headers[key] !== undefined)
					self.headers[key] += ', ' + matches[2]
				else
					self.headers[key] = matches[2]
				self.rawHeaders.push(matches[1], matches[2])
			}
		})

		self._charset = 'x-user-defined'
		if (!capability.overrideMimeType) {
			var mimeType = self.rawHeaders['mime-type']
			if (mimeType) {
				var charsetMatch = mimeType.match(/;\s*charset=([^;])(;|$)/)
				if (charsetMatch) {
					self._charset = charsetMatch[1].toLowerCase()
				}
			}
			if (!self._charset)
				self._charset = 'utf-8' // best guess
		}
	}
}

inherits(IncomingMessage, stream.Readable)

IncomingMessage.prototype._read = function () {}

IncomingMessage.prototype._onXHRProgress = function () {
	var self = this

	var xhr = self._xhr

	var response = null
	switch (self._mode) {
		case 'text:vbarray': // For IE9
			if (xhr.readyState !== rStates.DONE)
				break
			try {
				// This fails in IE8
				response = new global.VBArray(xhr.responseBody).toArray()
			} catch (e) {}
			if (response !== null) {
				self.push(new Buffer(response))
				break
			}
			// Falls through in IE8	
		case 'text':
			try { // This will fail when readyState = 3 in IE9. Switch mode and wait for readyState = 4
				response = xhr.responseText
			} catch (e) {
				self._mode = 'text:vbarray'
				break
			}
			if (response.length > self._pos) {
				var newData = response.substr(self._pos)
				if (self._charset === 'x-user-defined') {
					var buffer = new Buffer(newData.length)
					for (var i = 0; i < newData.length; i++)
						buffer[i] = newData.charCodeAt(i) & 0xff

					self.push(buffer)
				} else {
					self.push(newData, self._charset)
				}
				self._pos = response.length
			}
			break
		case 'arraybuffer':
			if (xhr.readyState !== rStates.DONE)
				break
			response = xhr.response
			self.push(new Buffer(new Uint8Array(response)))
			break
		case 'moz-chunked-arraybuffer': // take whole
			response = xhr.response
			if (xhr.readyState !== rStates.LOADING || !response)
				break
			self.push(new Buffer(new Uint8Array(response)))
			break
		case 'ms-stream':
			response = xhr.response
			if (xhr.readyState !== rStates.LOADING)
				break
			var reader = new global.MSStreamReader()
			reader.onprogress = function () {
				if (reader.result.byteLength > self._pos) {
					self.push(new Buffer(new Uint8Array(reader.result.slice(self._pos))))
					self._pos = reader.result.byteLength
				}
			}
			reader.onload = function () {
				self.push(null)
			}
			// reader.onerror = ??? // TODO: this
			reader.readAsArrayBuffer(response)
			break
	}

	// The ms-stream case handles end separately in reader.onload()
	if (self._xhr.readyState === rStates.DONE && self._mode !== 'ms-stream') {
		self.push(null)
	}
}

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
},{"./capability":235,"_process":215,"buffer":18,"foreach":239,"inherits":210,"stream":233}],238:[function(require,module,exports){
module.exports = {
  "100": "Continue",
  "101": "Switching Protocols",
  "102": "Processing",
  "200": "OK",
  "201": "Created",
  "202": "Accepted",
  "203": "Non-Authoritative Information",
  "204": "No Content",
  "205": "Reset Content",
  "206": "Partial Content",
  "207": "Multi-Status",
  "300": "Multiple Choices",
  "301": "Moved Permanently",
  "302": "Moved Temporarily",
  "303": "See Other",
  "304": "Not Modified",
  "305": "Use Proxy",
  "307": "Temporary Redirect",
  "308": "Permanent Redirect",
  "400": "Bad Request",
  "401": "Unauthorized",
  "402": "Payment Required",
  "403": "Forbidden",
  "404": "Not Found",
  "405": "Method Not Allowed",
  "406": "Not Acceptable",
  "407": "Proxy Authentication Required",
  "408": "Request Time-out",
  "409": "Conflict",
  "410": "Gone",
  "411": "Length Required",
  "412": "Precondition Failed",
  "413": "Request Entity Too Large",
  "414": "Request-URI Too Large",
  "415": "Unsupported Media Type",
  "416": "Requested Range Not Satisfiable",
  "417": "Expectation Failed",
  "418": "I'm a teapot",
  "422": "Unprocessable Entity",
  "423": "Locked",
  "424": "Failed Dependency",
  "425": "Unordered Collection",
  "426": "Upgrade Required",
  "428": "Precondition Required",
  "429": "Too Many Requests",
  "431": "Request Header Fields Too Large",
  "500": "Internal Server Error",
  "501": "Not Implemented",
  "502": "Bad Gateway",
  "503": "Service Unavailable",
  "504": "Gateway Time-out",
  "505": "HTTP Version Not Supported",
  "506": "Variant Also Negotiates",
  "507": "Insufficient Storage",
  "509": "Bandwidth Limit Exceeded",
  "510": "Not Extended",
  "511": "Network Authentication Required"
}

},{}],239:[function(require,module,exports){

var hasOwn = Object.prototype.hasOwnProperty;
var toString = Object.prototype.toString;

module.exports = function forEach (obj, fn, ctx) {
    if (toString.call(fn) !== '[object Function]') {
        throw new TypeError('iterator must be a function');
    }
    var l = obj.length;
    if (l === +l) {
        for (var i = 0; i < l; i++) {
            fn.call(ctx, obj[i], i, obj);
        }
    } else {
        for (var k in obj) {
            if (hasOwn.call(obj, k)) {
                fn.call(ctx, obj[k], k, obj);
            }
        }
    }
};


},{}],240:[function(require,module,exports){

var indexOf = [].indexOf;

module.exports = function(arr, obj){
  if (indexOf) return arr.indexOf(obj);
  for (var i = 0; i < arr.length; ++i) {
    if (arr[i] === obj) return i;
  }
  return -1;
};
},{}],241:[function(require,module,exports){
'use strict';

// modified from https://github.com/es-shims/es5-shim
var has = Object.prototype.hasOwnProperty;
var toStr = Object.prototype.toString;
var slice = Array.prototype.slice;
var isArgs = require('./isArguments');
var hasDontEnumBug = !({ toString: null }).propertyIsEnumerable('toString');
var hasProtoEnumBug = function () {}.propertyIsEnumerable('prototype');
var dontEnums = [
	'toString',
	'toLocaleString',
	'valueOf',
	'hasOwnProperty',
	'isPrototypeOf',
	'propertyIsEnumerable',
	'constructor'
];
var equalsConstructorPrototype = function (o) {
	var ctor = o.constructor;
	return ctor && ctor.prototype === o;
};
var blacklistedKeys = {
	$console: true,
	$frame: true,
	$frameElement: true,
	$frames: true,
	$parent: true,
	$self: true,
	$webkitIndexedDB: true,
	$webkitStorageInfo: true,
	$window: true
};
var hasAutomationEqualityBug = (function () {
	/* global window */
	if (typeof window === 'undefined') { return false; }
	for (var k in window) {
		try {
			if (!blacklistedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
				try {
					equalsConstructorPrototype(window[k]);
				} catch (e) {
					return true;
				}
			}
		} catch (e) {
			return true;
		}
	}
	return false;
}());
var equalsConstructorPrototypeIfNotBuggy = function (o) {
	/* global window */
	if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
		return equalsConstructorPrototype(o);
	}
	try {
		return equalsConstructorPrototype(o);
	} catch (e) {
		return false;
	}
};

var keysShim = function keys(object) {
	var isObject = object !== null && typeof object === 'object';
	var isFunction = toStr.call(object) === '[object Function]';
	var isArguments = isArgs(object);
	var isString = isObject && toStr.call(object) === '[object String]';
	var theKeys = [];

	if (!isObject && !isFunction && !isArguments) {
		throw new TypeError('Object.keys called on a non-object');
	}

	var skipProto = hasProtoEnumBug && isFunction;
	if (isString && object.length > 0 && !has.call(object, 0)) {
		for (var i = 0; i < object.length; ++i) {
			theKeys.push(String(i));
		}
	}

	if (isArguments && object.length > 0) {
		for (var j = 0; j < object.length; ++j) {
			theKeys.push(String(j));
		}
	} else {
		for (var name in object) {
			if (!(skipProto && name === 'prototype') && has.call(object, name)) {
				theKeys.push(String(name));
			}
		}
	}

	if (hasDontEnumBug) {
		var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);

		for (var k = 0; k < dontEnums.length; ++k) {
			if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
				theKeys.push(dontEnums[k]);
			}
		}
	}
	return theKeys;
};

keysShim.shim = function shimObjectKeys() {
	if (Object.keys) {
		var keysWorksWithArguments = (function () {
			// Safari 5.0 bug
			return (Object.keys(arguments) || '').length === 2;
		}(1, 2));
		if (!keysWorksWithArguments) {
			var originalKeys = Object.keys;
			Object.keys = function keys(object) {
				if (isArgs(object)) {
					return originalKeys(slice.call(object));
				} else {
					return originalKeys(object);
				}
			};
		}
	} else {
		Object.keys = keysShim;
	}
	return Object.keys || keysShim;
};

module.exports = keysShim;

},{"./isArguments":242}],242:[function(require,module,exports){
'use strict';

var toStr = Object.prototype.toString;

module.exports = function isArguments(value) {
	var str = toStr.call(value);
	var isArgs = str === '[object Arguments]';
	if (!isArgs) {
		isArgs = str !== '[object Array]' &&
			value !== null &&
			typeof value === 'object' &&
			typeof value.length === 'number' &&
			value.length >= 0 &&
			toStr.call(value.callee) === '[object Function]';
	}
	return isArgs;
};

},{}],243:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var Buffer = require('buffer').Buffer;

var isBufferEncoding = Buffer.isEncoding
  || function(encoding) {
       switch (encoding && encoding.toLowerCase()) {
         case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true;
         default: return false;
       }
     }


function assertEncoding(encoding) {
  if (encoding && !isBufferEncoding(encoding)) {
    throw new Error('Unknown encoding: ' + encoding);
  }
}

// StringDecoder provides an interface for efficiently splitting a series of
// buffers into a series of JS strings without breaking apart multi-byte
// characters. CESU-8 is handled as part of the UTF-8 encoding.
//
// @TODO Handling all encodings inside a single object makes it very difficult
// to reason about this code, so it should be split up in the future.
// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
// points as used by CESU-8.
var StringDecoder = exports.StringDecoder = function(encoding) {
  this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
  assertEncoding(encoding);
  switch (this.encoding) {
    case 'utf8':
      // CESU-8 represents each of Surrogate Pair by 3-bytes
      this.surrogateSize = 3;
      break;
    case 'ucs2':
    case 'utf16le':
      // UTF-16 represents each of Surrogate Pair by 2-bytes
      this.surrogateSize = 2;
      this.detectIncompleteChar = utf16DetectIncompleteChar;
      break;
    case 'base64':
      // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
      this.surrogateSize = 3;
      this.detectIncompleteChar = base64DetectIncompleteChar;
      break;
    default:
      this.write = passThroughWrite;
      return;
  }

  // Enough space to store all bytes of a single character. UTF-8 needs 4
  // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate).
  this.charBuffer = new Buffer(6);
  // Number of bytes received for the current incomplete multi-byte character.
  this.charReceived = 0;
  // Number of bytes expected for the current incomplete multi-byte character.
  this.charLength = 0;
};


// write decodes the given buffer and returns it as JS string that is
// guaranteed to not contain any partial multi-byte characters. Any partial
// character found at the end of the buffer is buffered up, and will be
// returned when calling write again with the remaining bytes.
//
// Note: Converting a Buffer containing an orphan surrogate to a String
// currently works, but converting a String to a Buffer (via `new Buffer`, or
// Buffer#write) will replace incomplete surrogates with the unicode
// replacement character. See https://codereview.chromium.org/121173009/ .
StringDecoder.prototype.write = function(buffer) {
  var charStr = '';
  // if our last write ended with an incomplete multibyte character
  while (this.charLength) {
    // determine how many remaining bytes this buffer has to offer for this char
    var available = (buffer.length >= this.charLength - this.charReceived) ?
        this.charLength - this.charReceived :
        buffer.length;

    // add the new bytes to the char buffer
    buffer.copy(this.charBuffer, this.charReceived, 0, available);
    this.charReceived += available;

    if (this.charReceived < this.charLength) {
      // still not enough chars in this buffer? wait for more ...
      return '';
    }

    // remove bytes belonging to the current character from the buffer
    buffer = buffer.slice(available, buffer.length);

    // get the character that was split
    charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);

    // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
    var charCode = charStr.charCodeAt(charStr.length - 1);
    if (charCode >= 0xD800 && charCode <= 0xDBFF) {
      this.charLength += this.surrogateSize;
      charStr = '';
      continue;
    }
    this.charReceived = this.charLength = 0;

    // if there are no more bytes in this buffer, just emit our char
    if (buffer.length === 0) {
      return charStr;
    }
    break;
  }

  // determine and set charLength / charReceived
  this.detectIncompleteChar(buffer);

  var end = buffer.length;
  if (this.charLength) {
    // buffer the incomplete character bytes we got
    buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
    end -= this.charReceived;
  }

  charStr += buffer.toString(this.encoding, 0, end);

  var end = charStr.length - 1;
  var charCode = charStr.charCodeAt(end);
  // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
  if (charCode >= 0xD800 && charCode <= 0xDBFF) {
    var size = this.surrogateSize;
    this.charLength += size;
    this.charReceived += size;
    this.charBuffer.copy(this.charBuffer, size, 0, size);
    buffer.copy(this.charBuffer, 0, 0, size);
    return charStr.substring(0, end);
  }

  // or just emit the charStr
  return charStr;
};

// detectIncompleteChar determines if there is an incomplete UTF-8 character at
// the end of the given buffer. If so, it sets this.charLength to the byte
// length that character, and sets this.charReceived to the number of bytes
// that are available for this character.
StringDecoder.prototype.detectIncompleteChar = function(buffer) {
  // determine how many bytes we have to check at the end of this buffer
  var i = (buffer.length >= 3) ? 3 : buffer.length;

  // Figure out if one of the last i bytes of our buffer announces an
  // incomplete char.
  for (; i > 0; i--) {
    var c = buffer[buffer.length - i];

    // See http://en.wikipedia.org/wiki/UTF-8#Description

    // 110XXXXX
    if (i == 1 && c >> 5 == 0x06) {
      this.charLength = 2;
      break;
    }

    // 1110XXXX
    if (i <= 2 && c >> 4 == 0x0E) {
      this.charLength = 3;
      break;
    }

    // 11110XXX
    if (i <= 3 && c >> 3 == 0x1E) {
      this.charLength = 4;
      break;
    }
  }
  this.charReceived = i;
};

StringDecoder.prototype.end = function(buffer) {
  var res = '';
  if (buffer && buffer.length)
    res = this.write(buffer);

  if (this.charReceived) {
    var cr = this.charReceived;
    var buf = this.charBuffer;
    var enc = this.encoding;
    res += buf.slice(0, cr).toString(enc);
  }

  return res;
};

function passThroughWrite(buffer) {
  return buffer.toString(this.encoding);
}

function utf16DetectIncompleteChar(buffer) {
  this.charReceived = buffer.length % 2;
  this.charLength = this.charReceived ? 2 : 0;
}

function base64DetectIncompleteChar(buffer) {
  this.charReceived = buffer.length % 3;
  this.charLength = this.charReceived ? 3 : 0;
}

},{"buffer":18}],244:[function(require,module,exports){
exports.isatty = function () { return false; };

function ReadStream() {
  throw new Error('tty.ReadStream is not implemented');
}
exports.ReadStream = ReadStream;

function WriteStream() {
  throw new Error('tty.ReadStream is not implemented');
}
exports.WriteStream = WriteStream;

},{}],245:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var punycode = require('punycode');

exports.parse = urlParse;
exports.resolve = urlResolve;
exports.resolveObject = urlResolveObject;
exports.format = urlFormat;

exports.Url = Url;

function Url() {
  this.protocol = null;
  this.slashes = null;
  this.auth = null;
  this.host = null;
  this.port = null;
  this.hostname = null;
  this.hash = null;
  this.search = null;
  this.query = null;
  this.pathname = null;
  this.path = null;
  this.href = null;
}

// Reference: RFC 3986, RFC 1808, RFC 2396

// define these here so at least they only have to be
// compiled once on the first module load.
var protocolPattern = /^([a-z0-9.+-]+:)/i,
    portPattern = /:[0-9]*$/,

    // RFC 2396: characters reserved for delimiting URLs.
    // We actually just auto-escape these.
    delims = ['<', '>', '"', '`', ' ', '\r', '\n', '\t'],

    // RFC 2396: characters not allowed for various reasons.
    unwise = ['{', '}', '|', '\\', '^', '`'].concat(delims),

    // Allowed by RFCs, but cause of XSS attacks.  Always escape these.
    autoEscape = ['\''].concat(unwise),
    // Characters that are never ever allowed in a hostname.
    // Note that any invalid chars are also handled, but these
    // are the ones that are *expected* to be seen, so we fast-path
    // them.
    nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape),
    hostEndingChars = ['/', '?', '#'],
    hostnameMaxLen = 255,
    hostnamePartPattern = /^[a-z0-9A-Z_-]{0,63}$/,
    hostnamePartStart = /^([a-z0-9A-Z_-]{0,63})(.*)$/,
    // protocols that can allow "unsafe" and "unwise" chars.
    unsafeProtocol = {
      'javascript': true,
      'javascript:': true
    },
    // protocols that never have a hostname.
    hostlessProtocol = {
      'javascript': true,
      'javascript:': true
    },
    // protocols that always contain a // bit.
    slashedProtocol = {
      'http': true,
      'https': true,
      'ftp': true,
      'gopher': true,
      'file': true,
      'http:': true,
      'https:': true,
      'ftp:': true,
      'gopher:': true,
      'file:': true
    },
    querystring = require('querystring');

function urlParse(url, parseQueryString, slashesDenoteHost) {
  if (url && isObject(url) && url instanceof Url) return url;

  var u = new Url;
  u.parse(url, parseQueryString, slashesDenoteHost);
  return u;
}

Url.prototype.parse = function(url, parseQueryString, slashesDenoteHost) {
  if (!isString(url)) {
    throw new TypeError("Parameter 'url' must be a string, not " + typeof url);
  }

  var rest = url;

  // trim before proceeding.
  // This is to support parse stuff like "  http://foo.com  \n"
  rest = rest.trim();

  var proto = protocolPattern.exec(rest);
  if (proto) {
    proto = proto[0];
    var lowerProto = proto.toLowerCase();
    this.protocol = lowerProto;
    rest = rest.substr(proto.length);
  }

  // figure out if it's got a host
  // user@server is *always* interpreted as a hostname, and url
  // resolution will treat //foo/bar as host=foo,path=bar because that's
  // how the browser resolves relative URLs.
  if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
    var slashes = rest.substr(0, 2) === '//';
    if (slashes && !(proto && hostlessProtocol[proto])) {
      rest = rest.substr(2);
      this.slashes = true;
    }
  }

  if (!hostlessProtocol[proto] &&
      (slashes || (proto && !slashedProtocol[proto]))) {

    // there's a hostname.
    // the first instance of /, ?, ;, or # ends the host.
    //
    // If there is an @ in the hostname, then non-host chars *are* allowed
    // to the left of the last @ sign, unless some host-ending character
    // comes *before* the @-sign.
    // URLs are obnoxious.
    //
    // ex:
    // http://a@b@c/ => user:a@b host:c
    // http://a@b?@c => user:a host:c path:/?@c

    // v0.12 TODO(isaacs): This is not quite how Chrome does things.
    // Review our test case against browsers more comprehensively.

    // find the first instance of any hostEndingChars
    var hostEnd = -1;
    for (var i = 0; i < hostEndingChars.length; i++) {
      var hec = rest.indexOf(hostEndingChars[i]);
      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
        hostEnd = hec;
    }

    // at this point, either we have an explicit point where the
    // auth portion cannot go past, or the last @ char is the decider.
    var auth, atSign;
    if (hostEnd === -1) {
      // atSign can be anywhere.
      atSign = rest.lastIndexOf('@');
    } else {
      // atSign must be in auth portion.
      // http://a@b/c@d => host:b auth:a path:/c@d
      atSign = rest.lastIndexOf('@', hostEnd);
    }

    // Now we have a portion which is definitely the auth.
    // Pull that off.
    if (atSign !== -1) {
      auth = rest.slice(0, atSign);
      rest = rest.slice(atSign + 1);
      this.auth = decodeURIComponent(auth);
    }

    // the host is the remaining to the left of the first non-host char
    hostEnd = -1;
    for (var i = 0; i < nonHostChars.length; i++) {
      var hec = rest.indexOf(nonHostChars[i]);
      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
        hostEnd = hec;
    }
    // if we still have not hit it, then the entire thing is a host.
    if (hostEnd === -1)
      hostEnd = rest.length;

    this.host = rest.slice(0, hostEnd);
    rest = rest.slice(hostEnd);

    // pull out port.
    this.parseHost();

    // we've indicated that there is a hostname,
    // so even if it's empty, it has to be present.
    this.hostname = this.hostname || '';

    // if hostname begins with [ and ends with ]
    // assume that it's an IPv6 address.
    var ipv6Hostname = this.hostname[0] === '[' &&
        this.hostname[this.hostname.length - 1] === ']';

    // validate a little.
    if (!ipv6Hostname) {
      var hostparts = this.hostname.split(/\./);
      for (var i = 0, l = hostparts.length; i < l; i++) {
        var part = hostparts[i];
        if (!part) continue;
        if (!part.match(hostnamePartPattern)) {
          var newpart = '';
          for (var j = 0, k = part.length; j < k; j++) {
            if (part.charCodeAt(j) > 127) {
              // we replace non-ASCII char with a temporary placeholder
              // we need this to make sure size of hostname is not
              // broken by replacing non-ASCII by nothing
              newpart += 'x';
            } else {
              newpart += part[j];
            }
          }
          // we test again with ASCII char only
          if (!newpart.match(hostnamePartPattern)) {
            var validParts = hostparts.slice(0, i);
            var notHost = hostparts.slice(i + 1);
            var bit = part.match(hostnamePartStart);
            if (bit) {
              validParts.push(bit[1]);
              notHost.unshift(bit[2]);
            }
            if (notHost.length) {
              rest = '/' + notHost.join('.') + rest;
            }
            this.hostname = validParts.join('.');
            break;
          }
        }
      }
    }

    if (this.hostname.length > hostnameMaxLen) {
      this.hostname = '';
    } else {
      // hostnames are always lower case.
      this.hostname = this.hostname.toLowerCase();
    }

    if (!ipv6Hostname) {
      // IDNA Support: Returns a puny coded representation of "domain".
      // It only converts the part of the domain name that
      // has non ASCII characters. I.e. it dosent matter if
      // you call it with a domain that already is in ASCII.
      var domainArray = this.hostname.split('.');
      var newOut = [];
      for (var i = 0; i < domainArray.length; ++i) {
        var s = domainArray[i];
        newOut.push(s.match(/[^A-Za-z0-9_-]/) ?
            'xn--' + punycode.encode(s) : s);
      }
      this.hostname = newOut.join('.');
    }

    var p = this.port ? ':' + this.port : '';
    var h = this.hostname || '';
    this.host = h + p;
    this.href += this.host;

    // strip [ and ] from the hostname
    // the host field still retains them, though
    if (ipv6Hostname) {
      this.hostname = this.hostname.substr(1, this.hostname.length - 2);
      if (rest[0] !== '/') {
        rest = '/' + rest;
      }
    }
  }

  // now rest is set to the post-host stuff.
  // chop off any delim chars.
  if (!unsafeProtocol[lowerProto]) {

    // First, make 100% sure that any "autoEscape" chars get
    // escaped, even if encodeURIComponent doesn't think they
    // need to be.
    for (var i = 0, l = autoEscape.length; i < l; i++) {
      var ae = autoEscape[i];
      var esc = encodeURIComponent(ae);
      if (esc === ae) {
        esc = escape(ae);
      }
      rest = rest.split(ae).join(esc);
    }
  }


  // chop off from the tail first.
  var hash = rest.indexOf('#');
  if (hash !== -1) {
    // got a fragment string.
    this.hash = rest.substr(hash);
    rest = rest.slice(0, hash);
  }
  var qm = rest.indexOf('?');
  if (qm !== -1) {
    this.search = rest.substr(qm);
    this.query = rest.substr(qm + 1);
    if (parseQueryString) {
      this.query = querystring.parse(this.query);
    }
    rest = rest.slice(0, qm);
  } else if (parseQueryString) {
    // no query string, but parseQueryString still requested
    this.search = '';
    this.query = {};
  }
  if (rest) this.pathname = rest;
  if (slashedProtocol[lowerProto] &&
      this.hostname && !this.pathname) {
    this.pathname = '/';
  }

  //to support http.request
  if (this.pathname || this.search) {
    var p = this.pathname || '';
    var s = this.search || '';
    this.path = p + s;
  }

  // finally, reconstruct the href based on what has been validated.
  this.href = this.format();
  return this;
};

// format a parsed object into a url string
function urlFormat(obj) {
  // ensure it's an object, and not a string url.
  // If it's an obj, this is a no-op.
  // this way, you can call url_format() on strings
  // to clean up potentially wonky urls.
  if (isString(obj)) obj = urlParse(obj);
  if (!(obj instanceof Url)) return Url.prototype.format.call(obj);
  return obj.format();
}

Url.prototype.format = function() {
  var auth = this.auth || '';
  if (auth) {
    auth = encodeURIComponent(auth);
    auth = auth.replace(/%3A/i, ':');
    auth += '@';
  }

  var protocol = this.protocol || '',
      pathname = this.pathname || '',
      hash = this.hash || '',
      host = false,
      query = '';

  if (this.host) {
    host = auth + this.host;
  } else if (this.hostname) {
    host = auth + (this.hostname.indexOf(':') === -1 ?
        this.hostname :
        '[' + this.hostname + ']');
    if (this.port) {
      host += ':' + this.port;
    }
  }

  if (this.query &&
      isObject(this.query) &&
      Object.keys(this.query).length) {
    query = querystring.stringify(this.query);
  }

  var search = this.search || (query && ('?' + query)) || '';

  if (protocol && protocol.substr(-1) !== ':') protocol += ':';

  // only the slashedProtocols get the //.  Not mailto:, xmpp:, etc.
  // unless they had them to begin with.
  if (this.slashes ||
      (!protocol || slashedProtocol[protocol]) && host !== false) {
    host = '//' + (host || '');
    if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname;
  } else if (!host) {
    host = '';
  }

  if (hash && hash.charAt(0) !== '#') hash = '#' + hash;
  if (search && search.charAt(0) !== '?') search = '?' + search;

  pathname = pathname.replace(/[?#]/g, function(match) {
    return encodeURIComponent(match);
  });
  search = search.replace('#', '%23');

  return protocol + host + pathname + search + hash;
};

function urlResolve(source, relative) {
  return urlParse(source, false, true).resolve(relative);
}

Url.prototype.resolve = function(relative) {
  return this.resolveObject(urlParse(relative, false, true)).format();
};

function urlResolveObject(source, relative) {
  if (!source) return relative;
  return urlParse(source, false, true).resolveObject(relative);
}

Url.prototype.resolveObject = function(relative) {
  if (isString(relative)) {
    var rel = new Url();
    rel.parse(relative, false, true);
    relative = rel;
  }

  var result = new Url();
  Object.keys(this).forEach(function(k) {
    result[k] = this[k];
  }, this);

  // hash is always overridden, no matter what.
  // even href="" will remove it.
  result.hash = relative.hash;

  // if the relative url is empty, then there's nothing left to do here.
  if (relative.href === '') {
    result.href = result.format();
    return result;
  }

  // hrefs like //foo/bar always cut to the protocol.
  if (relative.slashes && !relative.protocol) {
    // take everything except the protocol from relative
    Object.keys(relative).forEach(function(k) {
      if (k !== 'protocol')
        result[k] = relative[k];
    });

    //urlParse appends trailing / to urls like http://www.example.com
    if (slashedProtocol[result.protocol] &&
        result.hostname && !result.pathname) {
      result.path = result.pathname = '/';
    }

    result.href = result.format();
    return result;
  }

  if (relative.protocol && relative.protocol !== result.protocol) {
    // if it's a known url protocol, then changing
    // the protocol does weird things
    // first, if it's not file:, then we MUST have a host,
    // and if there was a path
    // to begin with, then we MUST have a path.
    // if it is file:, then the host is dropped,
    // because that's known to be hostless.
    // anything else is assumed to be absolute.
    if (!slashedProtocol[relative.protocol]) {
      Object.keys(relative).forEach(function(k) {
        result[k] = relative[k];
      });
      result.href = result.format();
      return result;
    }

    result.protocol = relative.protocol;
    if (!relative.host && !hostlessProtocol[relative.protocol]) {
      var relPath = (relative.pathname || '').split('/');
      while (relPath.length && !(relative.host = relPath.shift()));
      if (!relative.host) relative.host = '';
      if (!relative.hostname) relative.hostname = '';
      if (relPath[0] !== '') relPath.unshift('');
      if (relPath.length < 2) relPath.unshift('');
      result.pathname = relPath.join('/');
    } else {
      result.pathname = relative.pathname;
    }
    result.search = relative.search;
    result.query = relative.query;
    result.host = relative.host || '';
    result.auth = relative.auth;
    result.hostname = relative.hostname || relative.host;
    result.port = relative.port;
    // to support http.request
    if (result.pathname || result.search) {
      var p = result.pathname || '';
      var s = result.search || '';
      result.path = p + s;
    }
    result.slashes = result.slashes || relative.slashes;
    result.href = result.format();
    return result;
  }

  var isSourceAbs = (result.pathname && result.pathname.charAt(0) === '/'),
      isRelAbs = (
          relative.host ||
          relative.pathname && relative.pathname.charAt(0) === '/'
      ),
      mustEndAbs = (isRelAbs || isSourceAbs ||
                    (result.host && relative.pathname)),
      removeAllDots = mustEndAbs,
      srcPath = result.pathname && result.pathname.split('/') || [],
      relPath = relative.pathname && relative.pathname.split('/') || [],
      psychotic = result.protocol && !slashedProtocol[result.protocol];

  // if the url is a non-slashed url, then relative
  // links like ../.. should be able
  // to crawl up to the hostname, as well.  This is strange.
  // result.protocol has already been set by now.
  // Later on, put the first path part into the host field.
  if (psychotic) {
    result.hostname = '';
    result.port = null;
    if (result.host) {
      if (srcPath[0] === '') srcPath[0] = result.host;
      else srcPath.unshift(result.host);
    }
    result.host = '';
    if (relative.protocol) {
      relative.hostname = null;
      relative.port = null;
      if (relative.host) {
        if (relPath[0] === '') relPath[0] = relative.host;
        else relPath.unshift(relative.host);
      }
      relative.host = null;
    }
    mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');
  }

  if (isRelAbs) {
    // it's absolute.
    result.host = (relative.host || relative.host === '') ?
                  relative.host : result.host;
    result.hostname = (relative.hostname || relative.hostname === '') ?
                      relative.hostname : result.hostname;
    result.search = relative.search;
    result.query = relative.query;
    srcPath = relPath;
    // fall through to the dot-handling below.
  } else if (relPath.length) {
    // it's relative
    // throw away the existing file, and take the new path instead.
    if (!srcPath) srcPath = [];
    srcPath.pop();
    srcPath = srcPath.concat(relPath);
    result.search = relative.search;
    result.query = relative.query;
  } else if (!isNullOrUndefined(relative.search)) {
    // just pull out the search.
    // like href='?foo'.
    // Put this after the other two cases because it simplifies the booleans
    if (psychotic) {
      result.hostname = result.host = srcPath.shift();
      //occationaly the auth can get stuck only in host
      //this especialy happens in cases like
      //url.resolveObject('mailto:local1@domain1', 'local2@domain2')
      var authInHost = result.host && result.host.indexOf('@') > 0 ?
                       result.host.split('@') : false;
      if (authInHost) {
        result.auth = authInHost.shift();
        result.host = result.hostname = authInHost.shift();
      }
    }
    result.search = relative.search;
    result.query = relative.query;
    //to support http.request
    if (!isNull(result.pathname) || !isNull(result.search)) {
      result.path = (result.pathname ? result.pathname : '') +
                    (result.search ? result.search : '');
    }
    result.href = result.format();
    return result;
  }

  if (!srcPath.length) {
    // no path at all.  easy.
    // we've already handled the other stuff above.
    result.pathname = null;
    //to support http.request
    if (result.search) {
      result.path = '/' + result.search;
    } else {
      result.path = null;
    }
    result.href = result.format();
    return result;
  }

  // if a url ENDs in . or .., then it must get a trailing slash.
  // however, if it ends in anything else non-slashy,
  // then it must NOT get a trailing slash.
  var last = srcPath.slice(-1)[0];
  var hasTrailingSlash = (
      (result.host || relative.host) && (last === '.' || last === '..') ||
      last === '');

  // strip single dots, resolve double dots to parent dir
  // if the path tries to go above the root, `up` ends up > 0
  var up = 0;
  for (var i = srcPath.length; i >= 0; i--) {
    last = srcPath[i];
    if (last == '.') {
      srcPath.splice(i, 1);
    } else if (last === '..') {
      srcPath.splice(i, 1);
      up++;
    } else if (up) {
      srcPath.splice(i, 1);
      up--;
    }
  }

  // if the path is allowed to go above the root, restore leading ..s
  if (!mustEndAbs && !removeAllDots) {
    for (; up--; up) {
      srcPath.unshift('..');
    }
  }

  if (mustEndAbs && srcPath[0] !== '' &&
      (!srcPath[0] || srcPath[0].charAt(0) !== '/')) {
    srcPath.unshift('');
  }

  if (hasTrailingSlash && (srcPath.join('/').substr(-1) !== '/')) {
    srcPath.push('');
  }

  var isAbsolute = srcPath[0] === '' ||
      (srcPath[0] && srcPath[0].charAt(0) === '/');

  // put the host back
  if (psychotic) {
    result.hostname = result.host = isAbsolute ? '' :
                                    srcPath.length ? srcPath.shift() : '';
    //occationaly the auth can get stuck only in host
    //this especialy happens in cases like
    //url.resolveObject('mailto:local1@domain1', 'local2@domain2')
    var authInHost = result.host && result.host.indexOf('@') > 0 ?
                     result.host.split('@') : false;
    if (authInHost) {
      result.auth = authInHost.shift();
      result.host = result.hostname = authInHost.shift();
    }
  }

  mustEndAbs = mustEndAbs || (result.host && srcPath.length);

  if (mustEndAbs && !isAbsolute) {
    srcPath.unshift('');
  }

  if (!srcPath.length) {
    result.pathname = null;
    result.path = null;
  } else {
    result.pathname = srcPath.join('/');
  }

  //to support request.http
  if (!isNull(result.pathname) || !isNull(result.search)) {
    result.path = (result.pathname ? result.pathname : '') +
                  (result.search ? result.search : '');
  }
  result.auth = relative.auth || result.auth;
  result.slashes = result.slashes || relative.slashes;
  result.href = result.format();
  return result;
};

Url.prototype.parseHost = function() {
  var host = this.host;
  var port = portPattern.exec(host);
  if (port) {
    port = port[0];
    if (port !== ':') {
      this.port = port.substr(1);
    }
    host = host.substr(0, host.length - port.length);
  }
  if (host) this.hostname = host;
};

function isString(arg) {
  return typeof arg === "string";
}

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}

function isNull(arg) {
  return arg === null;
}
function isNullOrUndefined(arg) {
  return  arg == null;
}

},{"punycode":216,"querystring":219}],246:[function(require,module,exports){
module.exports = function isBuffer(arg) {
  return arg && typeof arg === 'object'
    && typeof arg.copy === 'function'
    && typeof arg.fill === 'function'
    && typeof arg.readUInt8 === 'function';
}
},{}],247:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
  if (!isString(f)) {
    var objects = [];
    for (var i = 0; i < arguments.length; i++) {
      objects.push(inspect(arguments[i]));
    }
    return objects.join(' ');
  }

  var i = 1;
  var args = arguments;
  var len = args.length;
  var str = String(f).replace(formatRegExp, function(x) {
    if (x === '%%') return '%';
    if (i >= len) return x;
    switch (x) {
      case '%s': return String(args[i++]);
      case '%d': return Number(args[i++]);
      case '%j':
        try {
          return JSON.stringify(args[i++]);
        } catch (_) {
          return '[Circular]';
        }
      default:
        return x;
    }
  });
  for (var x = args[i]; i < len; x = args[++i]) {
    if (isNull(x) || !isObject(x)) {
      str += ' ' + x;
    } else {
      str += ' ' + inspect(x);
    }
  }
  return str;
};


// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
  // Allow for deprecating things in the process of starting up.
  if (isUndefined(global.process)) {
    return function() {
      return exports.deprecate(fn, msg).apply(this, arguments);
    };
  }

  if (process.noDeprecation === true) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (process.throwDeprecation) {
        throw new Error(msg);
      } else if (process.traceDeprecation) {
        console.trace(msg);
      } else {
        console.error(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
};


var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
  if (isUndefined(debugEnviron))
    debugEnviron = process.env.NODE_DEBUG || '';
  set = set.toUpperCase();
  if (!debugs[set]) {
    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
      var pid = process.pid;
      debugs[set] = function() {
        var msg = exports.format.apply(exports, arguments);
        console.error('%s %d: %s', set, pid, msg);
      };
    } else {
      debugs[set] = function() {};
    }
  }
  return debugs[set];
};


/**
 * Echos the value of a value. Trys to print the value out
 * in the best way possible given the different types.
 *
 * @param {Object} obj The object to print out.
 * @param {Object} opts Optional options object that alters the output.
 */
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
  // default options
  var ctx = {
    seen: [],
    stylize: stylizeNoColor
  };
  // legacy...
  if (arguments.length >= 3) ctx.depth = arguments[2];
  if (arguments.length >= 4) ctx.colors = arguments[3];
  if (isBoolean(opts)) {
    // legacy...
    ctx.showHidden = opts;
  } else if (opts) {
    // got an "options" object
    exports._extend(ctx, opts);
  }
  // set default options
  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
  if (isUndefined(ctx.depth)) ctx.depth = 2;
  if (isUndefined(ctx.colors)) ctx.colors = false;
  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
  if (ctx.colors) ctx.stylize = stylizeWithColor;
  return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;


// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
  'bold' : [1, 22],
  'italic' : [3, 23],
  'underline' : [4, 24],
  'inverse' : [7, 27],
  'white' : [37, 39],
  'grey' : [90, 39],
  'black' : [30, 39],
  'blue' : [34, 39],
  'cyan' : [36, 39],
  'green' : [32, 39],
  'magenta' : [35, 39],
  'red' : [31, 39],
  'yellow' : [33, 39]
};

// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
  'special': 'cyan',
  'number': 'yellow',
  'boolean': 'yellow',
  'undefined': 'grey',
  'null': 'bold',
  'string': 'green',
  'date': 'magenta',
  // "name": intentionally not styling
  'regexp': 'red'
};


function stylizeWithColor(str, styleType) {
  var style = inspect.styles[styleType];

  if (style) {
    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
           '\u001b[' + inspect.colors[style][1] + 'm';
  } else {
    return str;
  }
}


function stylizeNoColor(str, styleType) {
  return str;
}


function arrayToHash(array) {
  var hash = {};

  array.forEach(function(val, idx) {
    hash[val] = true;
  });

  return hash;
}


function formatValue(ctx, value, recurseTimes) {
  // Provide a hook for user-specified inspect functions.
  // Check that value is an object with an inspect function on it
  if (ctx.customInspect &&
      value &&
      isFunction(value.inspect) &&
      // Filter out the util module, it's inspect function is special
      value.inspect !== exports.inspect &&
      // Also filter out any prototype objects using the circular check.
      !(value.constructor && value.constructor.prototype === value)) {
    var ret = value.inspect(recurseTimes, ctx);
    if (!isString(ret)) {
      ret = formatValue(ctx, ret, recurseTimes);
    }
    return ret;
  }

  // Primitive types cannot have properties
  var primitive = formatPrimitive(ctx, value);
  if (primitive) {
    return primitive;
  }

  // Look up the keys of the object.
  var keys = Object.keys(value);
  var visibleKeys = arrayToHash(keys);

  if (ctx.showHidden) {
    keys = Object.getOwnPropertyNames(value);
  }

  // IE doesn't make error fields non-enumerable
  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
  if (isError(value)
      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
    return formatError(value);
  }

  // Some type of object without properties can be shortcutted.
  if (keys.length === 0) {
    if (isFunction(value)) {
      var name = value.name ? ': ' + value.name : '';
      return ctx.stylize('[Function' + name + ']', 'special');
    }
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    }
    if (isDate(value)) {
      return ctx.stylize(Date.prototype.toString.call(value), 'date');
    }
    if (isError(value)) {
      return formatError(value);
    }
  }

  var base = '', array = false, braces = ['{', '}'];

  // Make Array say that they are Array
  if (isArray(value)) {
    array = true;
    braces = ['[', ']'];
  }

  // Make functions say that they are functions
  if (isFunction(value)) {
    var n = value.name ? ': ' + value.name : '';
    base = ' [Function' + n + ']';
  }

  // Make RegExps say that they are RegExps
  if (isRegExp(value)) {
    base = ' ' + RegExp.prototype.toString.call(value);
  }

  // Make dates with properties first say the date
  if (isDate(value)) {
    base = ' ' + Date.prototype.toUTCString.call(value);
  }

  // Make error with message first say the error
  if (isError(value)) {
    base = ' ' + formatError(value);
  }

  if (keys.length === 0 && (!array || value.length == 0)) {
    return braces[0] + base + braces[1];
  }

  if (recurseTimes < 0) {
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    } else {
      return ctx.stylize('[Object]', 'special');
    }
  }

  ctx.seen.push(value);

  var output;
  if (array) {
    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
  } else {
    output = keys.map(function(key) {
      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
    });
  }

  ctx.seen.pop();

  return reduceToSingleString(output, base, braces);
}


function formatPrimitive(ctx, value) {
  if (isUndefined(value))
    return ctx.stylize('undefined', 'undefined');
  if (isString(value)) {
    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                                             .replace(/'/g, "\\'")
                                             .replace(/\\"/g, '"') + '\'';
    return ctx.stylize(simple, 'string');
  }
  if (isNumber(value))
    return ctx.stylize('' + value, 'number');
  if (isBoolean(value))
    return ctx.stylize('' + value, 'boolean');
  // For some reason typeof null is "object", so special case here.
  if (isNull(value))
    return ctx.stylize('null', 'null');
}


function formatError(value) {
  return '[' + Error.prototype.toString.call(value) + ']';
}


function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
  var output = [];
  for (var i = 0, l = value.length; i < l; ++i) {
    if (hasOwnProperty(value, String(i))) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          String(i), true));
    } else {
      output.push('');
    }
  }
  keys.forEach(function(key) {
    if (!key.match(/^\d+$/)) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          key, true));
    }
  });
  return output;
}


function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
  var name, str, desc;
  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
  if (desc.get) {
    if (desc.set) {
      str = ctx.stylize('[Getter/Setter]', 'special');
    } else {
      str = ctx.stylize('[Getter]', 'special');
    }
  } else {
    if (desc.set) {
      str = ctx.stylize('[Setter]', 'special');
    }
  }
  if (!hasOwnProperty(visibleKeys, key)) {
    name = '[' + key + ']';
  }
  if (!str) {
    if (ctx.seen.indexOf(desc.value) < 0) {
      if (isNull(recurseTimes)) {
        str = formatValue(ctx, desc.value, null);
      } else {
        str = formatValue(ctx, desc.value, recurseTimes - 1);
      }
      if (str.indexOf('\n') > -1) {
        if (array) {
          str = str.split('\n').map(function(line) {
            return '  ' + line;
          }).join('\n').substr(2);
        } else {
          str = '\n' + str.split('\n').map(function(line) {
            return '   ' + line;
          }).join('\n');
        }
      }
    } else {
      str = ctx.stylize('[Circular]', 'special');
    }
  }
  if (isUndefined(name)) {
    if (array && key.match(/^\d+$/)) {
      return str;
    }
    name = JSON.stringify('' + key);
    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
      name = name.substr(1, name.length - 2);
      name = ctx.stylize(name, 'name');
    } else {
      name = name.replace(/'/g, "\\'")
                 .replace(/\\"/g, '"')
                 .replace(/(^"|"$)/g, "'");
      name = ctx.stylize(name, 'string');
    }
  }

  return name + ': ' + str;
}


function reduceToSingleString(output, base, braces) {
  var numLinesEst = 0;
  var length = output.reduce(function(prev, cur) {
    numLinesEst++;
    if (cur.indexOf('\n') >= 0) numLinesEst++;
    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
  }, 0);

  if (length > 60) {
    return braces[0] +
           (base === '' ? '' : base + '\n ') +
           ' ' +
           output.join(',\n  ') +
           ' ' +
           braces[1];
  }

  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}


// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
  return Array.isArray(ar);
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return isObject(e) &&
      (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = require('./support/isBuffer');

function objectToString(o) {
  return Object.prototype.toString.call(o);
}


function pad(n) {
  return n < 10 ? '0' + n.toString(10) : n.toString(10);
}


var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
              'Oct', 'Nov', 'Dec'];

// 26 Feb 16:19:34
function timestamp() {
  var d = new Date();
  var time = [pad(d.getHours()),
              pad(d.getMinutes()),
              pad(d.getSeconds())].join(':');
  return [d.getDate(), months[d.getMonth()], time].join(' ');
}


// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};


/**
 * Inherit the prototype methods from one constructor into another.
 *
 * The Function.prototype.inherits from lang.js rewritten as a standalone
 * function (not on Function.prototype). NOTE: If this file is to be loaded
 * during bootstrapping this function needs to be rewritten using some native
 * functions as prototype setup using normal JavaScript does not work as
 * expected during bootstrapping (see mirror.js in r114903).
 *
 * @param {function} ctor Constructor function which needs to inherit the
 *     prototype.
 * @param {function} superCtor Constructor function to inherit prototype from.
 */
exports.inherits = require('inherits');

exports._extend = function(origin, add) {
  // Don't do anything if add isn't an object
  if (!add || !isObject(add)) return origin;

  var keys = Object.keys(add);
  var i = keys.length;
  while (i--) {
    origin[keys[i]] = add[keys[i]];
  }
  return origin;
};

function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":246,"_process":215,"inherits":210}],248:[function(require,module,exports){
var indexOf = require('indexof');

var Object_keys = function (obj) {
    if (Object.keys) return Object.keys(obj)
    else {
        var res = [];
        for (var key in obj) res.push(key)
        return res;
    }
};

var forEach = function (xs, fn) {
    if (xs.forEach) return xs.forEach(fn)
    else for (var i = 0; i < xs.length; i++) {
        fn(xs[i], i, xs);
    }
};

var defineProp = (function() {
    try {
        Object.defineProperty({}, '_', {});
        return function(obj, name, value) {
            Object.defineProperty(obj, name, {
                writable: true,
                enumerable: false,
                configurable: true,
                value: value
            })
        };
    } catch(e) {
        return function(obj, name, value) {
            obj[name] = value;
        };
    }
}());

var globals = ['Array', 'Boolean', 'Date', 'Error', 'EvalError', 'Function',
'Infinity', 'JSON', 'Math', 'NaN', 'Number', 'Object', 'RangeError',
'ReferenceError', 'RegExp', 'String', 'SyntaxError', 'TypeError', 'URIError',
'decodeURI', 'decodeURIComponent', 'encodeURI', 'encodeURIComponent', 'escape',
'eval', 'isFinite', 'isNaN', 'parseFloat', 'parseInt', 'undefined', 'unescape'];

function Context() {}
Context.prototype = {};

var Script = exports.Script = function NodeScript (code) {
    if (!(this instanceof Script)) return new Script(code);
    this.code = code;
};

Script.prototype.runInContext = function (context) {
    if (!(context instanceof Context)) {
        throw new TypeError("needs a 'context' argument.");
    }
    
    var iframe = document.createElement('iframe');
    if (!iframe.style) iframe.style = {};
    iframe.style.display = 'none';
    
    document.body.appendChild(iframe);
    
    var win = iframe.contentWindow;
    var wEval = win.eval, wExecScript = win.execScript;

    if (!wEval && wExecScript) {
        // win.eval() magically appears when this is called in IE:
        wExecScript.call(win, 'null');
        wEval = win.eval;
    }
    
    forEach(Object_keys(context), function (key) {
        win[key] = context[key];
    });
    forEach(globals, function (key) {
        if (context[key]) {
            win[key] = context[key];
        }
    });
    
    var winKeys = Object_keys(win);

    var res = wEval.call(win, this.code);
    
    forEach(Object_keys(win), function (key) {
        // Avoid copying circular objects like `top` and `window` by only
        // updating existing context properties or new properties in the `win`
        // that was only introduced after the eval.
        if (key in context || indexOf(winKeys, key) === -1) {
            context[key] = win[key];
        }
    });

    forEach(globals, function (key) {
        if (!(key in context)) {
            defineProp(context, key, win[key]);
        }
    });
    
    document.body.removeChild(iframe);
    
    return res;
};

Script.prototype.runInThisContext = function () {
    return eval(this.code); // maybe...
};

Script.prototype.runInNewContext = function (context) {
    var ctx = Script.createContext(context);
    var res = this.runInContext(ctx);

    forEach(Object_keys(ctx), function (key) {
        context[key] = ctx[key];
    });

    return res;
};

forEach(Object_keys(Script.prototype), function (name) {
    exports[name] = Script[name] = function (code) {
        var s = Script(code);
        return s[name].apply(s, [].slice.call(arguments, 1));
    };
});

exports.createScript = function (code) {
    return exports.Script(code);
};

exports.createContext = Script.createContext = function (context) {
    var copy = new Context();
    if(typeof context === 'object') {
        forEach(Object_keys(context), function (key) {
            copy[key] = context[key];
        });
    }
    return copy;
};

},{"indexof":249}],249:[function(require,module,exports){
arguments[4][240][0].apply(exports,arguments)
},{"dup":240}],250:[function(require,module,exports){
module.exports = extend

function extend() {
    var target = {}

    for (var i = 0; i < arguments.length; i++) {
        var source = arguments[i]

        for (var key in source) {
            if (source.hasOwnProperty(key)) {
                target[key] = source[key]
            }
        }
    }

    return target
}

},{}],251:[function(require,module,exports){
/// <reference path="typings/tsd.d.ts" />
var pushrocks = {
    beautylog: require("beautylog"),
    remotefile: require("remotefile"),
    smartparam: require("smartparam"),
    smartpath: require("smartpath"),
    smartcli: require("smartcli"),
    smarturl: require("smarturl")
};
module.exports = pushrocks;

},{"beautylog":252,"remotefile":383,"smartcli":478,"smartparam":576,"smartpath":577,"smarturl":578}],252:[function(require,module,exports){
/// <reference path="./typings/tsd.d.ts" />
var colors = require("colors");
var clc = require("cli-color");
var bl;
bl = {};
/**
 * object to append to all locally used params
 * @type {{}}
 */
var localBl;
localBl = {};
localBl.dirPrefix = clc.bgXterm(39).xterm(231).bold(' DIR ') + ' ';
localBl.errorPrefix = ' Error: '.bgRed.white.bold + ' ';
localBl.infoPrefix = clc.bgXterm(198).xterm(231).bold(' INFO ') + ' ';
localBl.normalPrefix = ' Log: '.bgCyan.white.bold + ' ';
localBl.okPrefix = ' '.bgGreen + ' OK! '.bgBlack.green.bold + ' ';
localBl.successPrefix = ' Success: '.bgGreen.white.bold + ' ';
localBl.warnPrefix = ' '.bgYellow + ' Warn: '.bgBlack.yellow.bold + ' ';
/**
 *
 * @param logText
 * @param logType
 * @returns {boolean}
 */
bl.log = function (logText, logType) {
    if (logText === void 0) { logText = 'empty log'; }
    if (logType === void 0) { logType = 'normal'; }
    try {
        switch (logType) {
            case 'dir':
                logText = localBl.dirPrefix + clc.xterm(26)(logText);
                break;
            case 'error':
                logText = localBl.errorPrefix + logText.red.bold;
                break;
            case 'info':
                logText = localBl.infoPrefix + clc.xterm(198)(logText);
                break;
            case 'normal':
                logText = localBl.normalPrefix + logText.cyan.bold;
                break;
            case 'ok':
                logText = localBl.okPrefix + logText.bold;
                break;
            case 'success':
                logText = localBl.successPrefix + logText.green.bold;
                break;
            case 'warn':
                logText = localBl.warnPrefix + logText.bold;
                break;
            default:
                logText.blue.bold;
                console.log(('unknown logType for "' + logText + '"').red.bold);
        }
        console.log(logText);
        return true;
    }
    catch (error) {
        console.log(localBl.errorPrefix + 'You seem to have tried logging something strange'.red.bold + error);
        return false;
    }
};
/**
 * logs an directory to console
 * @param logText
 * @returns {boolean}
 */
bl.dir = function (logText) {
    return bl.log(logText, 'dir');
};
/**
 * logs an error to console
 * @param logText
 * @returns {boolean}
 */
bl.error = function (logText) {
    return bl.log(logText, 'error');
};
/**
 * logs an info to console
 * @param logText
 * @returns {boolean}
 */
bl.info = function (logText) {
    return bl.log(logText, 'info');
};
/**
 * logs an 'OK!' message to console
 * @param logText
 * @returns {boolean}
 */
bl.ok = function (logText) {
    return bl.log(logText, 'ok');
};
/**
 * logs a success to console
 * @param logText string to log as error
 * @returns {boolean}
 */
bl.success = function (logText) {
    return bl.log(logText, 'success');
};
/**
 * logs a 'warn:' message to console
 * @param logText string to log as error
 * @returns {boolean}
 */
bl.warn = function (logText) {
    return bl.log(logText, 'warn');
};
module.exports = bl;

},{"cli-color":259,"colors":376}],253:[function(require,module,exports){
'use strict';

var object        = require('es5-ext/object/valid-object')
  , stringifiable = require('es5-ext/object/validate-stringifiable-value')
  , forOf         = require('es6-iterator/for-of');

module.exports = function (text, style) {
	var result = '';
	text = stringifiable(text);
	object(style);
	forOf(text, function (char) { result += style[char] || char; });
	return result;
};

},{"es5-ext/object/valid-object":319,"es5-ext/object/validate-stringifiable-value":321,"es6-iterator/for-of":332}],254:[function(require,module,exports){
(function (process){
'use strict';

var d              = require('d')
  , assign         = require('es5-ext/object/assign')
  , forEach        = require('es5-ext/object/for-each')
  , map            = require('es5-ext/object/map')
  , primitiveSet   = require('es5-ext/object/primitive-set')
  , setPrototypeOf = require('es5-ext/object/set-prototype-of')
  , memoize        = require('memoizee')
  , memoizeMethods = require('memoizee/methods')

  , sgr = require('./lib/sgr')
  , mods = sgr.mods

  , join = Array.prototype.join, defineProperty = Object.defineProperty
  , max = Math.max, min = Math.min
  , variantModes = primitiveSet('_fg', '_bg')
  , xtermMatch, getFn;

// Some use cli-color as: console.log(clc.red('Error!'));
// Which is inefficient as on each call it configures new clc object
// with memoization we reuse once created object
var memoized = memoize(function (scope, mod) {
	return defineProperty(getFn(), '_cliColorData', d(assign({}, scope._cliColorData, mod)));
});

var proto = Object.create(Function.prototype, assign(map(mods, function (mod) {
	return d.gs(function () { return memoized(this, mod); });
}), memoizeMethods({
	// xterm (255) color
	xterm: d(function (code) {
		code = isNaN(code) ? 255 : min(max(code, 0), 255);
		return defineProperty(getFn(), '_cliColorData',
			d(assign({}, this._cliColorData, {
				_fg: [xtermMatch ? xtermMatch[code] : ('38;5;' + code), 39]
			})));
	}),
	bgXterm: d(function (code) {
		code = isNaN(code) ? 255 : min(max(code, 0), 255);
		return defineProperty(getFn(), '_cliColorData',
			d(assign({}, this._cliColorData, {
				_bg: [xtermMatch ? (xtermMatch[code] + 10) : ('48;5;' + code), 49]
			})));
	})
})));

var getEndRe = memoize(function (code) {
	return new RegExp('\x1b\\[' + code + 'm', 'g');
}, { primitive: true });

if (process.platform === 'win32') xtermMatch = require('./lib/xterm-match');

getFn = function () {
	return setPrototypeOf(function self(/*…msg*/) {
		var start = '', end = '', msg = join.call(arguments, ' '), conf = self._cliColorData
		  , hasAnsi = sgr.hasCSI(msg);
		forEach(conf, function (mod, key) {
			end    = sgr(mod[1]) + end;
			start += sgr(mod[0]);
			if (hasAnsi) {
				msg = msg.replace(getEndRe(mod[1]), variantModes[key] ? sgr(mod[0]) : '');
			}
		}, null, true);
		return start + msg + end;
	}, proto);
};

module.exports = Object.defineProperties(getFn(), {
	xtermSupported: d(!xtermMatch),
	_cliColorData: d('', {})
});

}).call(this,require('_process'))
},{"./lib/sgr":260,"./lib/xterm-match":262,"_process":215,"d":266,"es5-ext/object/assign":298,"es5-ext/object/for-each":304,"es5-ext/object/map":311,"es5-ext/object/primitive-set":314,"es5-ext/object/set-prototype-of":315,"memoizee":348,"memoizee/methods":355}],255:[function(require,module,exports){
'use strict';

module.exports = '\x07';

},{}],256:[function(require,module,exports){
'use strict';

var from          = require('es5-ext/array/from')
  , iterable      = require('es5-ext/iterable/validate-object')
  , stringifiable = require('es5-ext/object/validate-stringifiable')
  , pad           = require('es5-ext/string/#/pad');

module.exports = function (rows/*, options*/) {
	var options = Object(arguments[1]), cols = [];
	return from(iterable(rows), function (row, index) {
		return from(iterable(row), function (str, index) {
			var col = cols[index];
			if (!col) col = cols[index] = { width: 0 };
			str = stringifiable(str);
			if (str.length > col.width) col.width = str.length;
			return str;
		});
	}).map(function (row) {
		return row.map(function (item, index) {
			return pad.call(item, ' ', -cols[index].width);
		}).join((options.sep == null) ? ' | ' : options.sep);
	}).join('\n') + '\n';
};

},{"es5-ext/array/from":272,"es5-ext/iterable/validate-object":283,"es5-ext/object/validate-stringifiable":322,"es5-ext/string/#/pad":326}],257:[function(require,module,exports){
'use strict';

module.exports = {
	screen: '\x1b[2J',
	screenLeft: '\x1b[1J',
	screenRight: '\x1b[J',
	line: '\x1b[2K',
	lineLeft: '\x1b[1K',
	lineRight: '\x1b[K'
};

},{}],258:[function(require,module,exports){
'use strict';
/*
 * get actual length of ANSI-formatted string
 */

var strip = require('./strip');

module.exports = function (str) {
	return strip(str).length;
};

},{"./strip":369}],259:[function(require,module,exports){
'use strict';

var d = require('d');

module.exports = Object.defineProperties(require('./bare'), {
	windowSize: d(require('./window-size')),
	erase: d(require('./erase')),
	move: d(require('./move')),
	beep: d(require('./beep')),
	columns: d(require('./columns')),
	strip: d(require('./strip')),
	getStrippedLength: d(require('./get-stripped-length')),
	slice: d(require('./slice')),
	throbber: d(require('./throbber')),
	reset: d(require('./reset')),
	art: d(require('./art'))
});

},{"./art":253,"./bare":254,"./beep":255,"./columns":256,"./erase":257,"./get-stripped-length":258,"./move":263,"./reset":367,"./slice":368,"./strip":369,"./throbber":370,"./window-size":371,"d":266}],260:[function(require,module,exports){
'use strict';
/* CSI - control sequence introducer */
/* SGR - set graphic rendition */

var assign   = require('es5-ext/object/assign')
  , includes = require('es5-ext/string/#/contains')
  , forOwn   = require('es5-ext/object/for-each')
  , onlyKey  = require('es5-ext/object/first-key')
  , forEachRight = require('es5-ext/array/#/for-each-right')
  , uniq = require('es5-ext/array/#/uniq.js');

var CSI = '\x1b[';

var sgr = function (code) {
	return CSI + code + 'm';
};

sgr.CSI = CSI;

var mods = assign({
	// Style
	bold:      { _bold: [1, 22] },
	italic:    { _italic: [3, 23] },
	underline: { _underline: [4, 24] },
	blink:     { _blink: [5, 25] },
	inverse:   { _inverse: [7, 27] },
	strike:    { _strike: [9, 29] }

	// Color
}, ['black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white']
	.reduce(function (obj, color, index) {
		// foreground
		obj[color] = { _fg: [30 + index, 39] };
		obj[color + 'Bright'] = { _fg: [90 + index, 39] };

		// background
		obj['bg' + color[0].toUpperCase() + color.slice(1)] = { _bg: [40 + index, 49] };
		obj['bg' + color[0].toUpperCase() + color.slice(1) + 'Bright'] = { _bg: [100 + index, 49] };

		return obj;
	}, {}));

sgr.mods = mods;

sgr.openers = {};
sgr.closers = {};

forOwn(mods, function (mod) {
	var modPair = mod[onlyKey(mod)];

	sgr.openers[modPair[0]] = modPair;
	sgr.closers[modPair[1]] = modPair;
});

sgr.openStyle = function (mods, code) {
	mods.push(sgr.openers[code]);
};

sgr.closeStyle = function (mods, code) {
	forEachRight.call(mods, function (modPair, index) {
		if (modPair[1] === code) {
			mods.splice(index, 1);
		}
	});
};

/* prepend openers */
sgr.prepend = function (mods) {
	return mods.map(function (modPair, key) {
		return sgr(modPair[0]);
	});
};

/* complete non-closed openers with corresponding closers */
sgr.complete = function (mods, closerCodes) {
	closerCodes.forEach(function (code) {
		sgr.closeStyle(mods, code);
	});

	// mods must be closed from the last opened to first opened
	mods = mods.reverse();

	mods = mods.map(function (modPair, key) {
		return modPair[1];
	});

	// one closer can close many openers (31, 32 -> 39)
	mods = uniq.call(mods);

	return mods.map(sgr);
};

var hasCSI = function (str) {
	return includes.call(str, CSI);
};

sgr.hasCSI = hasCSI;

var extractCode = function (csi) {
	var code = csi.slice(2, -1);
	code = Number(code);
	return code;
};

sgr.extractCode = extractCode;

module.exports = sgr;

},{"es5-ext/array/#/for-each-right":270,"es5-ext/array/#/uniq.js":271,"es5-ext/object/assign":298,"es5-ext/object/first-key":303,"es5-ext/object/for-each":304,"es5-ext/string/#/contains":323}],261:[function(require,module,exports){
'use strict';

module.exports = [
	"000000", "800000", "008000", "808000", "000080", "800080", "008080", "c0c0c0",
	"808080", "ff0000", "00ff00", "ffff00", "0000ff", "ff00ff", "00ffff", "ffffff",

	"000000", "00005f", "000087", "0000af", "0000d7", "0000ff",
	"005f00", "005f5f", "005f87", "005faf", "005fd7", "005fff",
	"008700", "00875f", "008787", "0087af", "0087d7", "0087ff",
	"00af00", "00af5f", "00af87", "00afaf", "00afd7", "00afff",
	"00d700", "00d75f", "00d787", "00d7af", "00d7d7", "00d7ff",
	"00ff00", "00ff5f", "00ff87", "00ffaf", "00ffd7", "00ffff",

	"5f0000", "5f005f", "5f0087", "5f00af", "5f00d7", "5f00ff",
	"5f5f00", "5f5f5f", "5f5f87", "5f5faf", "5f5fd7", "5f5fff",
	"5f8700", "5f875f", "5f8787", "5f87af", "5f87d7", "5f87ff",
	"5faf00", "5faf5f", "5faf87", "5fafaf", "5fafd7", "5fafff",
	"5fd700", "5fd75f", "5fd787", "5fd7af", "5fd7d7", "5fd7ff",
	"5fff00", "5fff5f", "5fff87", "5fffaf", "5fffd7", "5fffff",

	"870000", "87005f", "870087", "8700af", "8700d7", "8700ff",
	"875f00", "875f5f", "875f87", "875faf", "875fd7", "875fff",
	"878700", "87875f", "878787", "8787af", "8787d7", "8787ff",
	"87af00", "87af5f", "87af87", "87afaf", "87afd7", "87afff",
	"87d700", "87d75f", "87d787", "87d7af", "87d7d7", "87d7ff",
	"87ff00", "87ff5f", "87ff87", "87ffaf", "87ffd7", "87ffff",

	"af0000", "af005f", "af0087", "af00af", "af00d7", "af00ff",
	"af5f00", "af5f5f", "af5f87", "af5faf", "af5fd7", "af5fff",
	"af8700", "af875f", "af8787", "af87af", "af87d7", "af87ff",
	"afaf00", "afaf5f", "afaf87", "afafaf", "afafd7", "afafff",
	"afd700", "afd75f", "afd787", "afd7af", "afd7d7", "afd7ff",
	"afff00", "afff5f", "afff87", "afffaf", "afffd7", "afffff",

	"d70000", "d7005f", "d70087", "d700af", "d700d7", "d700ff",
	"d75f00", "d75f5f", "d75f87", "d75faf", "d75fd7", "d75fff",
	"d78700", "d7875f", "d78787", "d787af", "d787d7", "d787ff",
	"d7af00", "d7af5f", "d7af87", "d7afaf", "d7afd7", "d7afff",
	"d7d700", "d7d75f", "d7d787", "d7d7af", "d7d7d7", "d7d7ff",
	"d7ff00", "d7ff5f", "d7ff87", "d7ffaf", "d7ffd7", "d7ffff",

	"ff0000", "ff005f", "ff0087", "ff00af", "ff00d7", "ff00ff",
	"ff5f00", "ff5f5f", "ff5f87", "ff5faf", "ff5fd7", "ff5fff",
	"ff8700", "ff875f", "ff8787", "ff87af", "ff87d7", "ff87ff",
	"ffaf00", "ffaf5f", "ffaf87", "ffafaf", "ffafd7", "ffafff",
	"ffd700", "ffd75f", "ffd787", "ffd7af", "ffd7d7", "ffd7ff",
	"ffff00", "ffff5f", "ffff87", "ffffaf", "ffffd7", "ffffff",

	"080808", "121212", "1c1c1c", "262626", "303030", "3a3a3a",
	"444444", "4e4e4e", "585858", "626262", "6c6c6c", "767676",
	"808080", "8a8a8a", "949494", "9e9e9e", "a8a8a8", "b2b2b2",
	"bcbcbc", "c6c6c6", "d0d0d0", "dadada", "e4e4e4", "eeeeee"
];

},{}],262:[function(require,module,exports){
'use strict';

var push = Array.prototype.push, reduce = Array.prototype.reduce, abs = Math.abs
  , colors, match, result, i;

colors = require('./xterm-colors').map(function (color) {
	return {
		r: parseInt(color.slice(0, 2), 16),
		g: parseInt(color.slice(2, 4), 16),
		b: parseInt(color.slice(4), 16)
	};
});

match = colors.slice(0, 16);

module.exports = result = [];

i = 0;
while (i < 8) {
	result.push(30 + i++);
}
i = 0;
while (i < 8) {
	result.push(90 + i++);
}
push.apply(result, colors.slice(16).map(function (data) {
	var index, diff = Infinity;
	match.every(function (match, i) {
		var ndiff = reduce.call('rgb', function (diff, channel) {
			diff += abs(match[channel] - data[channel]);
			return diff;
		}, 0);
		if (ndiff < diff) {
			index = i;
			diff = ndiff;
		}
		return ndiff;
	});
	return result[index];
}));

},{"./xterm-colors":261}],263:[function(require,module,exports){
'use strict';

var d     = require('d')
  , trunc = require('es5-ext/math/trunc')

  , up, down, right, left
  , abs = Math.abs, floor = Math.floor, max = Math.max;

var getMove = function (control) {
	return function (num) {
		num = isNaN(num) ? 0 : max(floor(num), 0);
		return num ? ('\x1b[' + num + control) : '';
	};
};
module.exports = Object.defineProperties(function (x, y) {
	x = isNaN(x) ? 0 : floor(x);
	y = isNaN(y) ? 0 : floor(y);
	return ((x > 0) ? right(x) : left(-x)) + ((y > 0) ? down(y) : up(-y));
}, {
	up: d(up = getMove('A')),
	down: d(down = getMove('B')),
	right: d(right = getMove('C')),
	left: d(left = getMove('D')),
	to: d(function (x, y) {
		x = isNaN(x) ? 1 : (max(floor(x), 0) + 1);
		y = isNaN(y) ? 1 : (max(floor(y), 0) + 1);
		return '\x1b[' + y + ';' + x + 'H';
	}),
	lines: d(function (n) {
		var dir;
		n = trunc(n) || 0;
		dir = (n >= 0) ? 'E' : 'F';
		n = floor(abs(n));
		return '\x1b[' + n + dir;
	})
});

},{"d":266,"es5-ext/math/trunc":287}],264:[function(require,module,exports){
'use strict';
module.exports = function () {
	return /[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-ORZcf-nqry=><]/g;
};

},{}],265:[function(require,module,exports){
'use strict';

var copy       = require('es5-ext/object/copy')
  , map        = require('es5-ext/object/map')
  , callable   = require('es5-ext/object/valid-callable')
  , validValue = require('es5-ext/object/valid-value')

  , bind = Function.prototype.bind, defineProperty = Object.defineProperty
  , hasOwnProperty = Object.prototype.hasOwnProperty
  , define;

define = function (name, desc, bindTo) {
	var value = validValue(desc) && callable(desc.value), dgs;
	dgs = copy(desc);
	delete dgs.writable;
	delete dgs.value;
	dgs.get = function () {
		if (hasOwnProperty.call(this, name)) return value;
		desc.value = bind.call(value, (bindTo == null) ? this : this[bindTo]);
		defineProperty(this, name, desc);
		return this[name];
	};
	return dgs;
};

module.exports = function (props/*, bindTo*/) {
	var bindTo = arguments[1];
	return map(props, function (desc, name) {
		return define(name, desc, bindTo);
	});
};

},{"es5-ext/object/copy":301,"es5-ext/object/map":311,"es5-ext/object/valid-callable":318,"es5-ext/object/valid-value":320}],266:[function(require,module,exports){
'use strict';

var assign        = require('es5-ext/object/assign')
  , normalizeOpts = require('es5-ext/object/normalize-options')
  , isCallable    = require('es5-ext/object/is-callable')
  , contains      = require('es5-ext/string/#/contains')

  , d;

d = module.exports = function (dscr, value/*, options*/) {
	var c, e, w, options, desc;
	if ((arguments.length < 2) || (typeof dscr !== 'string')) {
		options = value;
		value = dscr;
		dscr = null;
	} else {
		options = arguments[2];
	}
	if (dscr == null) {
		c = w = true;
		e = false;
	} else {
		c = contains.call(dscr, 'c');
		e = contains.call(dscr, 'e');
		w = contains.call(dscr, 'w');
	}

	desc = { value: value, configurable: c, enumerable: e, writable: w };
	return !options ? desc : assign(normalizeOpts(options), desc);
};

d.gs = function (dscr, get, set/*, options*/) {
	var c, e, options, desc;
	if (typeof dscr !== 'string') {
		options = set;
		set = get;
		get = dscr;
		dscr = null;
	} else {
		options = arguments[3];
	}
	if (get == null) {
		get = undefined;
	} else if (!isCallable(get)) {
		options = get;
		get = set = undefined;
	} else if (set == null) {
		set = undefined;
	} else if (!isCallable(set)) {
		options = set;
		set = undefined;
	}
	if (dscr == null) {
		c = true;
		e = false;
	} else {
		c = contains.call(dscr, 'c');
		e = contains.call(dscr, 'e');
	}

	desc = { get: get, set: set, configurable: c, enumerable: e };
	return !options ? desc : assign(normalizeOpts(options), desc);
};

},{"es5-ext/object/assign":298,"es5-ext/object/is-callable":306,"es5-ext/object/normalize-options":313,"es5-ext/string/#/contains":323}],267:[function(require,module,exports){
'use strict';

var map        = require('es5-ext/object/map')
  , isCallable = require('es5-ext/object/is-callable')
  , validValue = require('es5-ext/object/valid-value')
  , contains   = require('es5-ext/string/#/contains')

  , call = Function.prototype.call
  , defineProperty = Object.defineProperty
  , getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor
  , getPrototypeOf = Object.getPrototypeOf
  , hasOwnProperty = Object.prototype.hasOwnProperty
  , cacheDesc = { configurable: false, enumerable: false, writable: false,
		value: null }
  , define;

define = function (name, options) {
	var value, dgs, cacheName, desc, writable = false, resolvable
	  , flat;
	options = Object(validValue(options));
	cacheName = options.cacheName;
	flat = options.flat;
	if (cacheName == null) cacheName = name;
	delete options.cacheName;
	value = options.value;
	resolvable = isCallable(value);
	delete options.value;
	dgs = { configurable: Boolean(options.configurable),
		enumerable: Boolean(options.enumerable) };
	if (name !== cacheName) {
		dgs.get = function () {
			if (hasOwnProperty.call(this, cacheName)) return this[cacheName];
			cacheDesc.value = resolvable ? call.call(value, this, options) : value;
			cacheDesc.writable = writable;
			defineProperty(this, cacheName, cacheDesc);
			cacheDesc.value = null;
			if (desc) defineProperty(this, name, desc);
			return this[cacheName];
		};
	} else if (!flat) {
		dgs.get = function self() {
			var ownDesc;
			if (hasOwnProperty.call(this, name)) {
				ownDesc = getOwnPropertyDescriptor(this, name);
				// It happens in Safari, that getter is still called after property
				// was defined with a value, following workarounds that
				if (ownDesc.hasOwnProperty('value')) return ownDesc.value;
				if ((typeof ownDesc.get === 'function') && (ownDesc.get !== self)) {
					return ownDesc.get.call(this);
				}
				return value;
			}
			desc.value = resolvable ? call.call(value, this, options) : value;
			defineProperty(this, name, desc);
			desc.value = null;
			return this[name];
		};
	} else {
		dgs.get = function self() {
			var base = this, ownDesc;
			if (hasOwnProperty.call(this, name)) {
				// It happens in Safari, that getter is still called after property
				// was defined with a value, following workarounds that
				ownDesc = getOwnPropertyDescriptor(this, name);
				if (ownDesc.hasOwnProperty('value')) return ownDesc.value;
				if ((typeof ownDesc.get === 'function') && (ownDesc.get !== self)) {
					return ownDesc.get.call(this);
				}
			}
			while (!hasOwnProperty.call(base, name)) base = getPrototypeOf(base);
			desc.value = resolvable ? call.call(value, base, options) : value;
			defineProperty(base, name, desc);
			desc.value = null;
			return base[name];
		};
	}
	dgs.set = function (value) {
		dgs.get.call(this);
		this[cacheName] = value;
	};
	if (options.desc) {
		desc = {
			configurable: contains.call(options.desc, 'c'),
			enumerable: contains.call(options.desc, 'e')
		};
		if (cacheName === name) {
			desc.writable = contains.call(options.desc, 'w');
			desc.value = null;
		} else {
			writable = contains.call(options.desc, 'w');
			desc.get = dgs.get;
			desc.set = dgs.set;
		}
		delete options.desc;
	} else if (cacheName === name) {
		desc = {
			configurable: Boolean(options.configurable),
			enumerable: Boolean(options.enumerable),
			writable: Boolean(options.writable),
			value: null
		};
	}
	delete options.configurable;
	delete options.enumerable;
	delete options.writable;
	return dgs;
};

module.exports = function (props) {
	return map(props, function (desc, name) { return define(name, desc); });
};

},{"es5-ext/object/is-callable":306,"es5-ext/object/map":311,"es5-ext/object/valid-value":320,"es5-ext/string/#/contains":323}],268:[function(require,module,exports){
// Inspired by Google Closure:
// http://closure-library.googlecode.com/svn/docs/
// closure_goog_array_array.js.html#goog.array.clear

'use strict';

var value = require('../../object/valid-value');

module.exports = function () {
	value(this).length = 0;
	return this;
};

},{"../../object/valid-value":320}],269:[function(require,module,exports){
'use strict';

var toPosInt = require('../../number/to-pos-integer')
  , value    = require('../../object/valid-value')

  , indexOf = Array.prototype.indexOf
  , hasOwnProperty = Object.prototype.hasOwnProperty
  , abs = Math.abs, floor = Math.floor;

module.exports = function (searchElement/*, fromIndex*/) {
	var i, l, fromIndex, val;
	if (searchElement === searchElement) { //jslint: ignore
		return indexOf.apply(this, arguments);
	}

	l = toPosInt(value(this).length);
	fromIndex = arguments[1];
	if (isNaN(fromIndex)) fromIndex = 0;
	else if (fromIndex >= 0) fromIndex = floor(fromIndex);
	else fromIndex = toPosInt(this.length) - floor(abs(fromIndex));

	for (i = fromIndex; i < l; ++i) {
		if (hasOwnProperty.call(this, i)) {
			val = this[i];
			if (val !== val) return i; //jslint: ignore
		}
	}
	return -1;
};

},{"../../number/to-pos-integer":296,"../../object/valid-value":320}],270:[function(require,module,exports){
'use strict';

var toPosInt = require('../../number/to-pos-integer')
  , callable = require('../../object/valid-callable')
  , value    = require('../../object/valid-value')

  , hasOwnProperty = Object.prototype.hasOwnProperty
  , call = Function.prototype.call;

module.exports = function (cb/*, thisArg*/) {
	var i, self, thisArg;

	self = Object(value(this));
	callable(cb);
	thisArg = arguments[1];

	for (i = (toPosInt(self.length) - 1); i >= 0; --i) {
		if (hasOwnProperty.call(self, i)) call.call(cb, thisArg, self[i], i, self);
	}
};

},{"../../number/to-pos-integer":296,"../../object/valid-callable":318,"../../object/valid-value":320}],271:[function(require,module,exports){
'use strict';

var indexOf = require('./e-index-of')

  , filter = Array.prototype.filter

  , isFirst;

isFirst = function (value, index) {
	return indexOf.call(this, value) === index;
};

module.exports = function () { return filter.call(this, isFirst, this); };

},{"./e-index-of":269}],272:[function(require,module,exports){
'use strict';

module.exports = require('./is-implemented')()
	? Array.from
	: require('./shim');

},{"./is-implemented":273,"./shim":274}],273:[function(require,module,exports){
'use strict';

module.exports = function () {
	var from = Array.from, arr, result;
	if (typeof from !== 'function') return false;
	arr = ['raz', 'dwa'];
	result = from(arr);
	return Boolean(result && (result !== arr) && (result[1] === 'dwa'));
};

},{}],274:[function(require,module,exports){
'use strict';

var iteratorSymbol = require('es6-symbol').iterator
  , isArguments    = require('../../function/is-arguments')
  , isFunction     = require('../../function/is-function')
  , toPosInt       = require('../../number/to-pos-integer')
  , callable       = require('../../object/valid-callable')
  , validValue     = require('../../object/valid-value')
  , isString       = require('../../string/is-string')

  , isArray = Array.isArray, call = Function.prototype.call
  , desc = { configurable: true, enumerable: true, writable: true, value: null }
  , defineProperty = Object.defineProperty;

module.exports = function (arrayLike/*, mapFn, thisArg*/) {
	var mapFn = arguments[1], thisArg = arguments[2], Constructor, i, j, arr, l, code, iterator
	  , result, getIterator, value;

	arrayLike = Object(validValue(arrayLike));

	if (mapFn != null) callable(mapFn);
	if (!this || (this === Array) || !isFunction(this)) {
		// Result: Plain array
		if (!mapFn) {
			if (isArguments(arrayLike)) {
				// Source: Arguments
				l = arrayLike.length;
				if (l !== 1) return Array.apply(null, arrayLike);
				arr = new Array(1);
				arr[0] = arrayLike[0];
				return arr;
			}
			if (isArray(arrayLike)) {
				// Source: Array
				arr = new Array(l = arrayLike.length);
				for (i = 0; i < l; ++i) arr[i] = arrayLike[i];
				return arr;
			}
		}
		arr = [];
	} else {
		// Result: Non plain array
		Constructor = this;
	}

	if (!isArray(arrayLike)) {
		if ((getIterator = arrayLike[iteratorSymbol]) !== undefined) {
			// Source: Iterator
			iterator = callable(getIterator).call(arrayLike);
			if (Constructor) arr = new Constructor();
			result = iterator.next();
			i = 0;
			while (!result.done) {
				value = mapFn ? call.call(mapFn, thisArg, result.value, i) : result.value;
				if (!Constructor) {
					arr[i] = value;
				} else {
					desc.value = value;
					defineProperty(arr, i, desc);
				}
				result = iterator.next();
				++i;
			}
			l = i;
		} else if (isString(arrayLike)) {
			// Source: String
			l = arrayLike.length;
			if (Constructor) arr = new Constructor();
			for (i = 0, j = 0; i < l; ++i) {
				value = arrayLike[i];
				if ((i + 1) < l) {
					code = value.charCodeAt(0);
					if ((code >= 0xD800) && (code <= 0xDBFF)) value += arrayLike[++i];
				}
				value = mapFn ? call.call(mapFn, thisArg, value, j) : value;
				if (!Constructor) {
					arr[j] = value;
				} else {
					desc.value = value;
					defineProperty(arr, j, desc);
				}
				++j;
			}
			l = j;
		}
	}
	if (l === undefined) {
		// Source: array or array-like
		l = toPosInt(arrayLike.length);
		if (Constructor) arr = new Constructor(l);
		for (i = 0; i < l; ++i) {
			value = mapFn ? call.call(mapFn, thisArg, arrayLike[i], i) : arrayLike[i];
			if (!Constructor) {
				arr[i] = value;
			} else {
				desc.value = value;
				defineProperty(arr, i, desc);
			}
		}
	}
	if (Constructor) {
		desc.value = null;
		arr.length = l;
	}
	return arr;
};

},{"../../function/is-arguments":279,"../../function/is-function":280,"../../number/to-pos-integer":296,"../../object/valid-callable":318,"../../object/valid-value":320,"../../string/is-string":330,"es6-symbol":290}],275:[function(require,module,exports){
'use strict';

var from = require('./from')

  , isArray = Array.isArray;

module.exports = function (arrayLike) {
	return isArray(arrayLike) ? arrayLike : from(arrayLike);
};

},{"./from":272}],276:[function(require,module,exports){
'use strict';

var assign = require('../object/assign')

  , captureStackTrace = Error.captureStackTrace;

exports = module.exports = function (message/*, code, ext*/) {
	var err = new Error(), code = arguments[1], ext = arguments[2];
	if (ext == null) {
		if (code && (typeof code === 'object')) {
			ext = code;
			code = null;
		}
	}
	if (ext != null) assign(err, ext);
	err.message = String(message);
	if (code != null) err.code = String(code);
	if (captureStackTrace) captureStackTrace(err, exports);
	return err;
};

},{"../object/assign":298}],277:[function(require,module,exports){
'use strict';

var callable = require('../../object/valid-callable')
  , aFrom    = require('../../array/from')

  , apply = Function.prototype.apply, call = Function.prototype.call
  , callFn = function (arg, fn) { return call.call(fn, this, arg); };

module.exports = function (fn/*, …fnn*/) {
	var fns, first;
	if (!fn) callable(fn);
	fns = [this].concat(aFrom(arguments));
	fns.forEach(callable);
	fns = fns.reverse();
	first = fns[0];
	fns = fns.slice(1);
	return function (arg) {
		return fns.reduce(callFn, apply.call(first, this, arguments));
	};
};

},{"../../array/from":272,"../../object/valid-callable":318}],278:[function(require,module,exports){
'use strict';

var toPosInt = require('../number/to-pos-integer')

  , test = function (a, b) {}, desc, defineProperty
  , generate, mixin;

try {
	Object.defineProperty(test, 'length', { configurable: true, writable: false,
		enumerable: false, value: 1 });
} catch (ignore) {}

if (test.length === 1) {
	// ES6
	desc = { configurable: true, writable: false, enumerable: false };
	defineProperty = Object.defineProperty;
	module.exports = function (fn, length) {
		length = toPosInt(length);
		if (fn.length === length) return fn;
		desc.value = length;
		return defineProperty(fn, 'length', desc);
	};
} else {
	mixin = require('../object/mixin');
	generate = (function () {
		var cache = [];
		return function (l) {
			var args, i = 0;
			if (cache[l]) return cache[l];
			args = [];
			while (l--) args.push('a' + (++i).toString(36));
			return new Function('fn', 'return function (' + args.join(', ') +
				') { return fn.apply(this, arguments); };');
		};
	}());
	module.exports = function (src, length) {
		var target;
		length = toPosInt(length);
		if (src.length === length) return src;
		target = generate(length)(src);
		try { mixin(target, src); } catch (ignore) {}
		return target;
	};
}

},{"../number/to-pos-integer":296,"../object/mixin":312}],279:[function(require,module,exports){
'use strict';

var toString = Object.prototype.toString

  , id = toString.call((function () { return arguments; }()));

module.exports = function (x) { return (toString.call(x) === id); };

},{}],280:[function(require,module,exports){
'use strict';

var toString = Object.prototype.toString

  , id = toString.call(require('./noop'));

module.exports = function (f) {
	return (typeof f === "function") && (toString.call(f) === id);
};

},{"./noop":281}],281:[function(require,module,exports){
'use strict';

module.exports = function () {};

},{}],282:[function(require,module,exports){
'use strict';

var iteratorSymbol = require('es6-symbol').iterator
  , isArrayLike    = require('../object/is-array-like');

module.exports = function (x) {
	if (x == null) return false;
	if (typeof x[iteratorSymbol] === 'function') return true;
	return isArrayLike(x);
};

},{"../object/is-array-like":305,"es6-symbol":290}],283:[function(require,module,exports){
'use strict';

var isObject = require('../object/is-object')
  , is       = require('./is');

module.exports = function (x) {
	if (is(x) && isObject(x)) return x;
	throw new TypeError(x + " is not an iterable or array-like object");
};

},{"../object/is-object":307,"./is":282}],284:[function(require,module,exports){
'use strict';

module.exports = require('./is-implemented')()
	? Math.sign
	: require('./shim');

},{"./is-implemented":285,"./shim":286}],285:[function(require,module,exports){
'use strict';

module.exports = function () {
	var sign = Math.sign;
	if (typeof sign !== 'function') return false;
	return ((sign(10) === 1) && (sign(-20) === -1));
};

},{}],286:[function(require,module,exports){
'use strict';

module.exports = function (value) {
	value = Number(value);
	if (isNaN(value) || (value === 0)) return value;
	return (value > 0) ? 1 : -1;
};

},{}],287:[function(require,module,exports){
'use strict';

module.exports = require('./is-implemented')()
	? Math.trunc
	: require('./shim');

},{"./is-implemented":288,"./shim":289}],288:[function(require,module,exports){
'use strict';

module.exports = function () {
	var trunc = Math.trunc;
	if (typeof trunc !== 'function') return false;
	return (trunc(13.67) === 13) && (trunc(-13.67) === -13);
};

},{}],289:[function(require,module,exports){
'use strict';

var floor = Math.floor;

module.exports = function (x) {
	if (isNaN(x)) return NaN;
	x = Number(x);
	if (x === 0) return x;
	if (x === Infinity) return Infinity;
	if (x === -Infinity) return -Infinity;
	if (x > 0) return floor(x);
	return -floor(-x);
};

},{}],290:[function(require,module,exports){
'use strict';

module.exports = require('./is-implemented')() ? Symbol : require('./polyfill');

},{"./is-implemented":291,"./polyfill":293}],291:[function(require,module,exports){
'use strict';

module.exports = function () {
	var symbol;
	if (typeof Symbol !== 'function') return false;
	symbol = Symbol('test symbol');
	try { String(symbol); } catch (e) { return false; }
	if (typeof Symbol.iterator === 'symbol') return true;

	// Return 'true' for polyfills
	if (typeof Symbol.isConcatSpreadable !== 'object') return false;
	if (typeof Symbol.iterator !== 'object') return false;
	if (typeof Symbol.toPrimitive !== 'object') return false;
	if (typeof Symbol.toStringTag !== 'object') return false;
	if (typeof Symbol.unscopables !== 'object') return false;

	return true;
};

},{}],292:[function(require,module,exports){
'use strict';

module.exports = function (x) {
	return (x && ((typeof x === 'symbol') || (x['@@toStringTag'] === 'Symbol'))) || false;
};

},{}],293:[function(require,module,exports){
'use strict';

var d              = require('d')
  , validateSymbol = require('./validate-symbol')

  , create = Object.create, defineProperties = Object.defineProperties
  , defineProperty = Object.defineProperty, objPrototype = Object.prototype
  , NativeSymbol, SymbolPolyfill, HiddenSymbol, globalSymbols = create(null);

if (typeof Symbol === 'function') NativeSymbol = Symbol;

var generateName = (function () {
	var created = create(null);
	return function (desc) {
		var postfix = 0, name, ie11BugWorkaround;
		while (created[desc + (postfix || '')]) ++postfix;
		desc += (postfix || '');
		created[desc] = true;
		name = '@@' + desc;
		defineProperty(objPrototype, name, d.gs(null, function (value) {
			// For IE11 issue see:
			// https://connect.microsoft.com/IE/feedbackdetail/view/1928508/
			//    ie11-broken-getters-on-dom-objects
			// https://github.com/medikoo/es6-symbol/issues/12
			if (ie11BugWorkaround) return;
			ie11BugWorkaround = true;
			defineProperty(this, name, d(value));
			ie11BugWorkaround = false;
		}));
		return name;
	};
}());

HiddenSymbol = function Symbol(description) {
	if (this instanceof HiddenSymbol) throw new TypeError('TypeError: Symbol is not a constructor');
	return SymbolPolyfill(description);
};
module.exports = SymbolPolyfill = function Symbol(description) {
	var symbol;
	if (this instanceof Symbol) throw new TypeError('TypeError: Symbol is not a constructor');
	symbol = create(HiddenSymbol.prototype);
	description = (description === undefined ? '' : String(description));
	return defineProperties(symbol, {
		__description__: d('', description),
		__name__: d('', generateName(description))
	});
};
defineProperties(SymbolPolyfill, {
	for: d(function (key) {
		if (globalSymbols[key]) return globalSymbols[key];
		return (globalSymbols[key] = SymbolPolyfill(String(key)));
	}),
	keyFor: d(function (s) {
		var key;
		validateSymbol(s);
		for (key in globalSymbols) if (globalSymbols[key] === s) return key;
	}),
	hasInstance: d('', (NativeSymbol && NativeSymbol.hasInstance) || SymbolPolyfill('hasInstance')),
	isConcatSpreadable: d('', (NativeSymbol && NativeSymbol.isConcatSpreadable) ||
		SymbolPolyfill('isConcatSpreadable')),
	iterator: d('', (NativeSymbol && NativeSymbol.iterator) || SymbolPolyfill('iterator')),
	match: d('', (NativeSymbol && NativeSymbol.match) || SymbolPolyfill('match')),
	replace: d('', (NativeSymbol && NativeSymbol.replace) || SymbolPolyfill('replace')),
	search: d('', (NativeSymbol && NativeSymbol.search) || SymbolPolyfill('search')),
	species: d('', (NativeSymbol && NativeSymbol.species) || SymbolPolyfill('species')),
	split: d('', (NativeSymbol && NativeSymbol.split) || SymbolPolyfill('split')),
	toPrimitive: d('', (NativeSymbol && NativeSymbol.toPrimitive) || SymbolPolyfill('toPrimitive')),
	toStringTag: d('', (NativeSymbol && NativeSymbol.toStringTag) || SymbolPolyfill('toStringTag')),
	unscopables: d('', (NativeSymbol && NativeSymbol.unscopables) || SymbolPolyfill('unscopables'))
});
defineProperties(HiddenSymbol.prototype, {
	constructor: d(SymbolPolyfill),
	toString: d('', function () { return this.__name__; })
});

defineProperties(SymbolPolyfill.prototype, {
	toString: d(function () { return 'Symbol (' + validateSymbol(this).__description__ + ')'; }),
	valueOf: d(function () { return validateSymbol(this); })
});
defineProperty(SymbolPolyfill.prototype, SymbolPolyfill.toPrimitive, d('',
	function () { return validateSymbol(this); }));
defineProperty(SymbolPolyfill.prototype, SymbolPolyfill.toStringTag, d('c', 'Symbol'));

defineProperty(HiddenSymbol.prototype, SymbolPolyfill.toPrimitive,
	d('c', SymbolPolyfill.prototype[SymbolPolyfill.toPrimitive]));
defineProperty(HiddenSymbol.prototype, SymbolPolyfill.toStringTag,
	d('c', SymbolPolyfill.prototype[SymbolPolyfill.toStringTag]));

},{"./validate-symbol":294,"d":266}],294:[function(require,module,exports){
'use strict';

var isSymbol = require('./is-symbol');

module.exports = function (value) {
	if (!isSymbol(value)) throw new TypeError(value + " is not a symbol");
	return value;
};

},{"./is-symbol":292}],295:[function(require,module,exports){
'use strict';

var sign = require('../math/sign')

  , abs = Math.abs, floor = Math.floor;

module.exports = function (value) {
	if (isNaN(value)) return 0;
	value = Number(value);
	if ((value === 0) || !isFinite(value)) return value;
	return sign(value) * floor(abs(value));
};

},{"../math/sign":284}],296:[function(require,module,exports){
'use strict';

var toInteger = require('./to-integer')

  , max = Math.max;

module.exports = function (value) { return max(0, toInteger(value)); };

},{"./to-integer":295}],297:[function(require,module,exports){
// Internal method, used by iteration functions.
// Calls a function for each key-value pair found in object
// Optionally takes compareFn to iterate object in specific order

'use strict';

var callable = require('./valid-callable')
  , value    = require('./valid-value')

  , bind = Function.prototype.bind, call = Function.prototype.call, keys = Object.keys
  , propertyIsEnumerable = Object.prototype.propertyIsEnumerable;

module.exports = function (method, defVal) {
	return function (obj, cb/*, thisArg, compareFn*/) {
		var list, thisArg = arguments[2], compareFn = arguments[3];
		obj = Object(value(obj));
		callable(cb);

		list = keys(obj);
		if (compareFn) {
			list.sort((typeof compareFn === 'function') ? bind.call(compareFn, obj) : undefined);
		}
		if (typeof method !== 'function') method = list[method];
		return call.call(method, list, function (key, index) {
			if (!propertyIsEnumerable.call(obj, key)) return defVal;
			return call.call(cb, thisArg, obj[key], key, obj, index);
		});
	};
};

},{"./valid-callable":318,"./valid-value":320}],298:[function(require,module,exports){
'use strict';

module.exports = require('./is-implemented')()
	? Object.assign
	: require('./shim');

},{"./is-implemented":299,"./shim":300}],299:[function(require,module,exports){
'use strict';

module.exports = function () {
	var assign = Object.assign, obj;
	if (typeof assign !== 'function') return false;
	obj = { foo: 'raz' };
	assign(obj, { bar: 'dwa' }, { trzy: 'trzy' });
	return (obj.foo + obj.bar + obj.trzy) === 'razdwatrzy';
};

},{}],300:[function(require,module,exports){
'use strict';

var keys  = require('../keys')
  , value = require('../valid-value')

  , max = Math.max;

module.exports = function (dest, src/*, …srcn*/) {
	var error, i, l = max(arguments.length, 2), assign;
	dest = Object(value(dest));
	assign = function (key) {
		try { dest[key] = src[key]; } catch (e) {
			if (!error) error = e;
		}
	};
	for (i = 1; i < l; ++i) {
		src = arguments[i];
		keys(src).forEach(assign);
	}
	if (error !== undefined) throw error;
	return dest;
};

},{"../keys":308,"../valid-value":320}],301:[function(require,module,exports){
'use strict';

var assign = require('./assign')
  , value  = require('./valid-value');

module.exports = function (obj) {
	var copy = Object(value(obj));
	if (copy !== obj) return copy;
	return assign({}, obj);
};

},{"./assign":298,"./valid-value":320}],302:[function(require,module,exports){
// Workaround for http://code.google.com/p/v8/issues/detail?id=2804

'use strict';

var create = Object.create, shim;

if (!require('./set-prototype-of/is-implemented')()) {
	shim = require('./set-prototype-of/shim');
}

module.exports = (function () {
	var nullObject, props, desc;
	if (!shim) return create;
	if (shim.level !== 1) return create;

	nullObject = {};
	props = {};
	desc = { configurable: false, enumerable: false, writable: true,
		value: undefined };
	Object.getOwnPropertyNames(Object.prototype).forEach(function (name) {
		if (name === '__proto__') {
			props[name] = { configurable: true, enumerable: false, writable: true,
				value: undefined };
			return;
		}
		props[name] = desc;
	});
	Object.defineProperties(nullObject, props);

	Object.defineProperty(shim, 'nullPolyfill', { configurable: false,
		enumerable: false, writable: false, value: nullObject });

	return function (prototype, props) {
		return create((prototype === null) ? nullObject : prototype, props);
	};
}());

},{"./set-prototype-of/is-implemented":316,"./set-prototype-of/shim":317}],303:[function(require,module,exports){
'use strict';

var value = require('./valid-value')

  , propertyIsEnumerable = Object.prototype.propertyIsEnumerable;

module.exports = function (obj) {
	var i;
	value(obj);
	for (i in obj) {
		if (propertyIsEnumerable.call(obj, i)) return i;
	}
	return null;
};

},{"./valid-value":320}],304:[function(require,module,exports){
'use strict';

module.exports = require('./_iterate')('forEach');

},{"./_iterate":297}],305:[function(require,module,exports){
'use strict';

var isFunction = require('../function/is-function')
  , isObject   = require('./is-object');

module.exports = function (x) {
	return ((x != null) && (typeof x.length === 'number') &&

		// Just checking ((typeof x === 'object') && (typeof x !== 'function'))
		// won't work right for some cases, e.g.:
		// type of instance of NodeList in Safari is a 'function'

		((isObject(x) && !isFunction(x)) || (typeof x === "string"))) || false;
};

},{"../function/is-function":280,"./is-object":307}],306:[function(require,module,exports){
// Deprecated

'use strict';

module.exports = function (obj) { return typeof obj === 'function'; };

},{}],307:[function(require,module,exports){
'use strict';

var map = { function: true, object: true };

module.exports = function (x) {
	return ((x != null) && map[typeof x]) || false;
};

},{}],308:[function(require,module,exports){
'use strict';

module.exports = require('./is-implemented')()
	? Object.keys
	: require('./shim');

},{"./is-implemented":309,"./shim":310}],309:[function(require,module,exports){
'use strict';

module.exports = function () {
	try {
		Object.keys('primitive');
		return true;
	} catch (e) { return false; }
};

},{}],310:[function(require,module,exports){
'use strict';

var keys = Object.keys;

module.exports = function (object) {
	return keys(object == null ? object : Object(object));
};

},{}],311:[function(require,module,exports){
'use strict';

var callable = require('./valid-callable')
  , forEach  = require('./for-each')

  , call = Function.prototype.call;

module.exports = function (obj, cb/*, thisArg*/) {
	var o = {}, thisArg = arguments[2];
	callable(cb);
	forEach(obj, function (value, key, obj, index) {
		o[key] = call.call(cb, thisArg, value, key, obj, index);
	});
	return o;
};

},{"./for-each":304,"./valid-callable":318}],312:[function(require,module,exports){
'use strict';

var value = require('./valid-value')

  , defineProperty = Object.defineProperty
  , getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor
  , getOwnPropertyNames = Object.getOwnPropertyNames;

module.exports = function (target, source) {
	var error;
	target = Object(value(target));
	getOwnPropertyNames(Object(value(source))).forEach(function (name) {
		try {
			defineProperty(target, name, getOwnPropertyDescriptor(source, name));
		} catch (e) { error = e; }
	});
	if (error !== undefined) throw error;
	return target;
};

},{"./valid-value":320}],313:[function(require,module,exports){
'use strict';

var forEach = Array.prototype.forEach, create = Object.create;

var process = function (src, obj) {
	var key;
	for (key in src) obj[key] = src[key];
};

module.exports = function (options/*, …options*/) {
	var result = create(null);
	forEach.call(arguments, function (options) {
		if (options == null) return;
		process(Object(options), result);
	});
	return result;
};

},{}],314:[function(require,module,exports){
'use strict';

var forEach = Array.prototype.forEach, create = Object.create;

module.exports = function (arg/*, …args*/) {
	var set = create(null);
	forEach.call(arguments, function (name) { set[name] = true; });
	return set;
};

},{}],315:[function(require,module,exports){
'use strict';

module.exports = require('./is-implemented')()
	? Object.setPrototypeOf
	: require('./shim');

},{"./is-implemented":316,"./shim":317}],316:[function(require,module,exports){
'use strict';

var create = Object.create, getPrototypeOf = Object.getPrototypeOf
  , x = {};

module.exports = function (/*customCreate*/) {
	var setPrototypeOf = Object.setPrototypeOf
	  , customCreate = arguments[0] || create;
	if (typeof setPrototypeOf !== 'function') return false;
	return getPrototypeOf(setPrototypeOf(customCreate(null), x)) === x;
};

},{}],317:[function(require,module,exports){
// Big thanks to @WebReflection for sorting this out
// https://gist.github.com/WebReflection/5593554

'use strict';

var isObject      = require('../is-object')
  , value         = require('../valid-value')

  , isPrototypeOf = Object.prototype.isPrototypeOf
  , defineProperty = Object.defineProperty
  , nullDesc = { configurable: true, enumerable: false, writable: true,
		value: undefined }
  , validate;

validate = function (obj, prototype) {
	value(obj);
	if ((prototype === null) || isObject(prototype)) return obj;
	throw new TypeError('Prototype must be null or an object');
};

module.exports = (function (status) {
	var fn, set;
	if (!status) return null;
	if (status.level === 2) {
		if (status.set) {
			set = status.set;
			fn = function (obj, prototype) {
				set.call(validate(obj, prototype), prototype);
				return obj;
			};
		} else {
			fn = function (obj, prototype) {
				validate(obj, prototype).__proto__ = prototype;
				return obj;
			};
		}
	} else {
		fn = function self(obj, prototype) {
			var isNullBase;
			validate(obj, prototype);
			isNullBase = isPrototypeOf.call(self.nullPolyfill, obj);
			if (isNullBase) delete self.nullPolyfill.__proto__;
			if (prototype === null) prototype = self.nullPolyfill;
			obj.__proto__ = prototype;
			if (isNullBase) defineProperty(self.nullPolyfill, '__proto__', nullDesc);
			return obj;
		};
	}
	return Object.defineProperty(fn, 'level', { configurable: false,
		enumerable: false, writable: false, value: status.level });
}((function () {
	var x = Object.create(null), y = {}, set
	  , desc = Object.getOwnPropertyDescriptor(Object.prototype, '__proto__');

	if (desc) {
		try {
			set = desc.set; // Opera crashes at this point
			set.call(x, y);
		} catch (ignore) { }
		if (Object.getPrototypeOf(x) === y) return { set: set, level: 2 };
	}

	x.__proto__ = y;
	if (Object.getPrototypeOf(x) === y) return { level: 2 };

	x = {};
	x.__proto__ = y;
	if (Object.getPrototypeOf(x) === y) return { level: 1 };

	return false;
}())));

require('../create');

},{"../create":302,"../is-object":307,"../valid-value":320}],318:[function(require,module,exports){
'use strict';

module.exports = function (fn) {
	if (typeof fn !== 'function') throw new TypeError(fn + " is not a function");
	return fn;
};

},{}],319:[function(require,module,exports){
'use strict';

var isObject = require('./is-object');

module.exports = function (value) {
	if (!isObject(value)) throw new TypeError(value + " is not an Object");
	return value;
};

},{"./is-object":307}],320:[function(require,module,exports){
'use strict';

module.exports = function (value) {
	if (value == null) throw new TypeError("Cannot use null or undefined");
	return value;
};

},{}],321:[function(require,module,exports){
'use strict';

var value         = require('./valid-value')
  , stringifiable = require('./validate-stringifiable');

module.exports = function (x) { return stringifiable(value(x)); };

},{"./valid-value":320,"./validate-stringifiable":322}],322:[function(require,module,exports){
'use strict';

module.exports = function (stringifiable) {
	try {
		return String(stringifiable);
	} catch (e) {
		throw new TypeError("Passed argument cannot be stringifed");
	}
};

},{}],323:[function(require,module,exports){
'use strict';

module.exports = require('./is-implemented')()
	? String.prototype.contains
	: require('./shim');

},{"./is-implemented":324,"./shim":325}],324:[function(require,module,exports){
'use strict';

var str = 'razdwatrzy';

module.exports = function () {
	if (typeof str.contains !== 'function') return false;
	return ((str.contains('dwa') === true) && (str.contains('foo') === false));
};

},{}],325:[function(require,module,exports){
'use strict';

var indexOf = String.prototype.indexOf;

module.exports = function (searchString/*, position*/) {
	return indexOf.call(this, searchString, arguments[1]) > -1;
};

},{}],326:[function(require,module,exports){
'use strict';

var toInteger = require('../../number/to-integer')
  , value     = require('../../object/valid-value')
  , repeat    = require('./repeat')

  , abs = Math.abs, max = Math.max;

module.exports = function (fill/*, length*/) {
	var self = String(value(this))
	  , sLength = self.length
	  , length = arguments[1];

	length = isNaN(length) ? 1 : toInteger(length);
	fill = repeat.call(String(fill), abs(length));
	if (length >= 0) return fill.slice(0, max(0, length - sLength)) + self;
	return self + (((sLength + length) >= 0) ? '' : fill.slice(length + sLength));
};

},{"../../number/to-integer":295,"../../object/valid-value":320,"./repeat":327}],327:[function(require,module,exports){
'use strict';

module.exports = require('./is-implemented')()
	? String.prototype.repeat
	: require('./shim');

},{"./is-implemented":328,"./shim":329}],328:[function(require,module,exports){
'use strict';

var str = 'foo';

module.exports = function () {
	if (typeof str.repeat !== 'function') return false;
	return (str.repeat(2) === 'foofoo');
};

},{}],329:[function(require,module,exports){
// Thanks: http://www.2ality.com/2014/01/efficient-string-repeat.html

'use strict';

var value     = require('../../../object/valid-value')
  , toInteger = require('../../../number/to-integer');

module.exports = function (count) {
	var str = String(value(this)), result;
	count = toInteger(count);
	if (count < 0) throw new RangeError("Count must be >= 0");
	if (!isFinite(count)) throw new RangeError("Count must be < ∞");
	result = '';
	if (!count) return result;
	while (true) {
		if (count & 1) result += str;
		count >>>= 1;
		if (count <= 0) break;
		str += str;
	}
	return result;
};

},{"../../../number/to-integer":295,"../../../object/valid-value":320}],330:[function(require,module,exports){
'use strict';

var toString = Object.prototype.toString

  , id = toString.call('');

module.exports = function (x) {
	return (typeof x === 'string') || (x && (typeof x === 'object') &&
		((x instanceof String) || (toString.call(x) === id))) || false;
};

},{}],331:[function(require,module,exports){
'use strict';

var setPrototypeOf = require('es5-ext/object/set-prototype-of')
  , contains       = require('es5-ext/string/#/contains')
  , d              = require('d')
  , Iterator       = require('./')

  , defineProperty = Object.defineProperty
  , ArrayIterator;

ArrayIterator = module.exports = function (arr, kind) {
	if (!(this instanceof ArrayIterator)) return new ArrayIterator(arr, kind);
	Iterator.call(this, arr);
	if (!kind) kind = 'value';
	else if (contains.call(kind, 'key+value')) kind = 'key+value';
	else if (contains.call(kind, 'key')) kind = 'key';
	else kind = 'value';
	defineProperty(this, '__kind__', d('', kind));
};
if (setPrototypeOf) setPrototypeOf(ArrayIterator, Iterator);

ArrayIterator.prototype = Object.create(Iterator.prototype, {
	constructor: d(ArrayIterator),
	_resolve: d(function (i) {
		if (this.__kind__ === 'value') return this.__list__[i];
		if (this.__kind__ === 'key+value') return [i, this.__list__[i]];
		return i;
	}),
	toString: d(function () { return '[object Array Iterator]'; })
});

},{"./":334,"d":266,"es5-ext/object/set-prototype-of":315,"es5-ext/string/#/contains":323}],332:[function(require,module,exports){
'use strict';

var isArguments = require('es5-ext/function/is-arguments')
  , callable    = require('es5-ext/object/valid-callable')
  , isString    = require('es5-ext/string/is-string')
  , get         = require('./get')

  , isArray = Array.isArray, call = Function.prototype.call
  , some = Array.prototype.some;

module.exports = function (iterable, cb/*, thisArg*/) {
	var mode, thisArg = arguments[2], result, doBreak, broken, i, l, char, code;
	if (isArray(iterable) || isArguments(iterable)) mode = 'array';
	else if (isString(iterable)) mode = 'string';
	else iterable = get(iterable);

	callable(cb);
	doBreak = function () { broken = true; };
	if (mode === 'array') {
		some.call(iterable, function (value) {
			call.call(cb, thisArg, value, doBreak);
			if (broken) return true;
		});
		return;
	}
	if (mode === 'string') {
		l = iterable.length;
		for (i = 0; i < l; ++i) {
			char = iterable[i];
			if ((i + 1) < l) {
				code = char.charCodeAt(0);
				if ((code >= 0xD800) && (code <= 0xDBFF)) char += iterable[++i];
			}
			call.call(cb, thisArg, char, doBreak);
			if (broken) break;
		}
		return;
	}
	result = iterable.next();

	while (!result.done) {
		call.call(cb, thisArg, result.value, doBreak);
		if (broken) return;
		result = iterable.next();
	}
};

},{"./get":333,"es5-ext/function/is-arguments":279,"es5-ext/object/valid-callable":318,"es5-ext/string/is-string":330}],333:[function(require,module,exports){
'use strict';

var isArguments    = require('es5-ext/function/is-arguments')
  , isString       = require('es5-ext/string/is-string')
  , ArrayIterator  = require('./array')
  , StringIterator = require('./string')
  , iterable       = require('./valid-iterable')
  , iteratorSymbol = require('es6-symbol').iterator;

module.exports = function (obj) {
	if (typeof iterable(obj)[iteratorSymbol] === 'function') return obj[iteratorSymbol]();
	if (isArguments(obj)) return new ArrayIterator(obj);
	if (isString(obj)) return new StringIterator(obj);
	return new ArrayIterator(obj);
};

},{"./array":331,"./string":341,"./valid-iterable":342,"es5-ext/function/is-arguments":279,"es5-ext/string/is-string":330,"es6-symbol":336}],334:[function(require,module,exports){
'use strict';

var clear    = require('es5-ext/array/#/clear')
  , assign   = require('es5-ext/object/assign')
  , callable = require('es5-ext/object/valid-callable')
  , value    = require('es5-ext/object/valid-value')
  , d        = require('d')
  , autoBind = require('d/auto-bind')
  , Symbol   = require('es6-symbol')

  , defineProperty = Object.defineProperty
  , defineProperties = Object.defineProperties
  , Iterator;

module.exports = Iterator = function (list, context) {
	if (!(this instanceof Iterator)) return new Iterator(list, context);
	defineProperties(this, {
		__list__: d('w', value(list)),
		__context__: d('w', context),
		__nextIndex__: d('w', 0)
	});
	if (!context) return;
	callable(context.on);
	context.on('_add', this._onAdd);
	context.on('_delete', this._onDelete);
	context.on('_clear', this._onClear);
};

defineProperties(Iterator.prototype, assign({
	constructor: d(Iterator),
	_next: d(function () {
		var i;
		if (!this.__list__) return;
		if (this.__redo__) {
			i = this.__redo__.shift();
			if (i !== undefined) return i;
		}
		if (this.__nextIndex__ < this.__list__.length) return this.__nextIndex__++;
		this._unBind();
	}),
	next: d(function () { return this._createResult(this._next()); }),
	_createResult: d(function (i) {
		if (i === undefined) return { done: true, value: undefined };
		return { done: false, value: this._resolve(i) };
	}),
	_resolve: d(function (i) { return this.__list__[i]; }),
	_unBind: d(function () {
		this.__list__ = null;
		delete this.__redo__;
		if (!this.__context__) return;
		this.__context__.off('_add', this._onAdd);
		this.__context__.off('_delete', this._onDelete);
		this.__context__.off('_clear', this._onClear);
		this.__context__ = null;
	}),
	toString: d(function () { return '[object Iterator]'; })
}, autoBind({
	_onAdd: d(function (index) {
		if (index >= this.__nextIndex__) return;
		++this.__nextIndex__;
		if (!this.__redo__) {
			defineProperty(this, '__redo__', d('c', [index]));
			return;
		}
		this.__redo__.forEach(function (redo, i) {
			if (redo >= index) this.__redo__[i] = ++redo;
		}, this);
		this.__redo__.push(index);
	}),
	_onDelete: d(function (index) {
		var i;
		if (index >= this.__nextIndex__) return;
		--this.__nextIndex__;
		if (!this.__redo__) return;
		i = this.__redo__.indexOf(index);
		if (i !== -1) this.__redo__.splice(i, 1);
		this.__redo__.forEach(function (redo, i) {
			if (redo > index) this.__redo__[i] = --redo;
		}, this);
	}),
	_onClear: d(function () {
		if (this.__redo__) clear.call(this.__redo__);
		this.__nextIndex__ = 0;
	})
})));

defineProperty(Iterator.prototype, Symbol.iterator, d(function () {
	return this;
}));
defineProperty(Iterator.prototype, Symbol.toStringTag, d('', 'Iterator'));

},{"d":266,"d/auto-bind":265,"es5-ext/array/#/clear":268,"es5-ext/object/assign":298,"es5-ext/object/valid-callable":318,"es5-ext/object/valid-value":320,"es6-symbol":336}],335:[function(require,module,exports){
'use strict';

var isArguments    = require('es5-ext/function/is-arguments')
  , isString       = require('es5-ext/string/is-string')
  , iteratorSymbol = require('es6-symbol').iterator

  , isArray = Array.isArray;

module.exports = function (value) {
	if (value == null) return false;
	if (isArray(value)) return true;
	if (isString(value)) return true;
	if (isArguments(value)) return true;
	return (typeof value[iteratorSymbol] === 'function');
};

},{"es5-ext/function/is-arguments":279,"es5-ext/string/is-string":330,"es6-symbol":336}],336:[function(require,module,exports){
arguments[4][290][0].apply(exports,arguments)
},{"./is-implemented":337,"./polyfill":339,"dup":290}],337:[function(require,module,exports){
arguments[4][291][0].apply(exports,arguments)
},{"dup":291}],338:[function(require,module,exports){
arguments[4][292][0].apply(exports,arguments)
},{"dup":292}],339:[function(require,module,exports){
arguments[4][293][0].apply(exports,arguments)
},{"./validate-symbol":340,"d":266,"dup":293}],340:[function(require,module,exports){
arguments[4][294][0].apply(exports,arguments)
},{"./is-symbol":338,"dup":294}],341:[function(require,module,exports){
// Thanks @mathiasbynens
// http://mathiasbynens.be/notes/javascript-unicode#iterating-over-symbols

'use strict';

var setPrototypeOf = require('es5-ext/object/set-prototype-of')
  , d              = require('d')
  , Iterator       = require('./')

  , defineProperty = Object.defineProperty
  , StringIterator;

StringIterator = module.exports = function (str) {
	if (!(this instanceof StringIterator)) return new StringIterator(str);
	str = String(str);
	Iterator.call(this, str);
	defineProperty(this, '__length__', d('', str.length));

};
if (setPrototypeOf) setPrototypeOf(StringIterator, Iterator);

StringIterator.prototype = Object.create(Iterator.prototype, {
	constructor: d(StringIterator),
	_next: d(function () {
		if (!this.__list__) return;
		if (this.__nextIndex__ < this.__length__) return this.__nextIndex__++;
		this._unBind();
	}),
	_resolve: d(function (i) {
		var char = this.__list__[i], code;
		if (this.__nextIndex__ === this.__length__) return char;
		code = char.charCodeAt(0);
		if ((code >= 0xD800) && (code <= 0xDBFF)) return char + this.__list__[this.__nextIndex__++];
		return char;
	}),
	toString: d(function () { return '[object String Iterator]'; })
});

},{"./":334,"d":266,"es5-ext/object/set-prototype-of":315}],342:[function(require,module,exports){
'use strict';

var isIterable = require('./is-iterable');

module.exports = function (value) {
	if (!isIterable(value)) throw new TypeError(value + " is not iterable");
	return value;
};

},{"./is-iterable":335}],343:[function(require,module,exports){
// Support for asynchronous functions

'use strict';

var aFrom        = require('es5-ext/array/from')
  , mixin        = require('es5-ext/object/mixin')
  , defineLength = require('es5-ext/function/_define-length')
  , nextTick     = require('next-tick')

  , slice = Array.prototype.slice
  , apply = Function.prototype.apply, create = Object.create
  , hasOwnProperty = Object.prototype.hasOwnProperty;

require('../lib/registered-extensions').async = function (tbi, conf) {
	var waiting = create(null), cache = create(null)
	  , base = conf.memoized, original = conf.original
	  , currentCallback, currentContext, currentArgs;

	// Initial
	conf.memoized = defineLength(function (arg) {
		var args = arguments, last = args[args.length - 1];
		if (typeof last === 'function') {
			currentCallback = last;
			args = slice.call(args, 0, -1);
		}
		return base.apply(currentContext = this, currentArgs = args);
	}, base);
	try { mixin(conf.memoized, base); } catch (ignore) {}

	// From cache (sync)
	conf.on('get', function (id) {
		var cb, context, args;
		if (!currentCallback) return;

		// Unresolved
		if (waiting[id]) {
			if (typeof waiting[id] === 'function') waiting[id] = [waiting[id], currentCallback];
			else waiting[id].push(currentCallback);
			currentCallback = null;
			return;
		}

		// Resolved, assure next tick invocation
		cb = currentCallback;
		context = currentContext;
		args = currentArgs;
		currentCallback = currentContext = currentArgs = null;
		nextTick(function () {
			var data;
			if (hasOwnProperty.call(cache, id)) {
				data = cache[id];
				conf.emit('getasync', id, args, context);
				apply.call(cb, data.context, data.args);
			} else {
				// Purged in a meantime, we shouldn't rely on cached value, recall
				currentCallback = cb;
				currentContext = context;
				currentArgs = args;
				base.apply(context, args);
			}
		});
	});

	// Not from cache
	conf.original = function () {
		var args, cb, origCb, result;
		if (!currentCallback) return apply.call(original, this, arguments);
		args = aFrom(arguments);
		cb = function self(err) {
			var cb, args, id = self.id;
			if (id == null) {
				// Shouldn't happen, means async callback was called sync way
				nextTick(apply.bind(self, this, arguments));
				return;
			}
			delete self.id;
			cb = waiting[id];
			delete waiting[id];
			if (!cb) {
				// Already processed,
				// outcome of race condition: asyncFn(1, cb), asyncFn.clear(), asyncFn(1, cb)
				return;
			}
			args = aFrom(arguments);
			if (conf.has(id)) {
				if (err) {
					conf.delete(id);
				} else {
					cache[id] = { context: this, args: args };
					conf.emit('setasync', id, (typeof cb === 'function') ? 1 : cb.length);
				}
			}
			if (typeof cb === 'function') {
				result = apply.call(cb, this, args);
			} else {
				cb.forEach(function (cb) { result = apply.call(cb, this, args); }, this);
			}
			return result;
		};
		origCb = currentCallback;
		currentCallback = currentContext = currentArgs = null;
		args.push(cb);
		result = apply.call(original, this, args);
		cb.cb = origCb;
		currentCallback = cb;
		return result;
	};

	// After not from cache call
	conf.on('set', function (id) {
		if (!currentCallback) {
			conf.delete(id);
			return;
		}
		if (waiting[id]) {
			// Race condition: asyncFn(1, cb), asyncFn.clear(), asyncFn(1, cb)
			if (typeof waiting[id] === 'function') waiting[id] = [waiting[id], currentCallback.cb];
			else waiting[id].push(currentCallback.cb);
		} else {
			waiting[id] = currentCallback.cb;
		}
		delete currentCallback.cb;
		currentCallback.id = id;
		currentCallback = null;
	});

	// On delete
	conf.on('delete', function (id) {
		var result;
		// If false, we don't have value yet, so we assume that intention is not
		// to memoize this call. After value is obtained we don't cache it but
		// gracefully pass to callback
		if (hasOwnProperty.call(waiting, id)) return;
		if (!cache[id]) return;
		result = cache[id];
		delete cache[id];
		conf.emit('deleteasync', id, result);
	});

	// On clear
	conf.on('clear', function () {
		var oldCache = cache;
		cache = create(null);
		conf.emit('clearasync', oldCache);
	});
};

},{"../lib/registered-extensions":351,"es5-ext/array/from":272,"es5-ext/function/_define-length":278,"es5-ext/object/mixin":312,"next-tick":358}],344:[function(require,module,exports){
// Call dispose callback on each cache purge

'use strict';

var callable   = require('es5-ext/object/valid-callable')
  , forEach    = require('es5-ext/object/for-each')
  , extensions = require('../lib/registered-extensions')

  , slice = Array.prototype.slice, apply = Function.prototype.apply;

extensions.dispose = function (dispose, conf, options) {
	var del;
	callable(dispose);
	if (options.async && extensions.async) {
		conf.on('deleteasync', del = function (id, result) {
			apply.call(dispose, null, slice.call(result.args, 1));
		});
		conf.on('clearasync', function (cache) {
			forEach(cache, function (result, id) { del(id, result); });
		});
		return;
	}
	conf.on('delete', del = function (id, result) { dispose(result); });
	conf.on('clear', function (cache) {
		forEach(cache, function (result, id) { del(id, result); });
	});
};

},{"../lib/registered-extensions":351,"es5-ext/object/for-each":304,"es5-ext/object/valid-callable":318}],345:[function(require,module,exports){
// Timeout cached values

'use strict';

var aFrom      = require('es5-ext/array/from')
  , noop       = require('es5-ext/function/noop')
  , forEach    = require('es5-ext/object/for-each')
  , timeout    = require('timers-ext/valid-timeout')
  , extensions = require('../lib/registered-extensions')

  , max = Math.max, min = Math.min, create = Object.create;

extensions.maxAge = function (maxAge, conf, options) {
	var timeouts, postfix, preFetchAge, preFetchTimeouts;

	maxAge = timeout(maxAge);
	if (!maxAge) return;

	timeouts = create(null);
	postfix = (options.async && extensions.async) ? 'async' : '';
	conf.on('set' + postfix, function (id) {
		timeouts[id] = setTimeout(function () { conf.delete(id); }, maxAge);
		if (!preFetchTimeouts) return;
		if (preFetchTimeouts[id]) clearTimeout(preFetchTimeouts[id]);
		preFetchTimeouts[id] = setTimeout(function () {
			delete preFetchTimeouts[id];
		}, preFetchAge);
	});
	conf.on('delete' + postfix, function (id) {
		clearTimeout(timeouts[id]);
		delete timeouts[id];
		if (!preFetchTimeouts) return;
		clearTimeout(preFetchTimeouts[id]);
		delete preFetchTimeouts[id];
	});

	if (options.preFetch) {
		if ((options.preFetch === true) || isNaN(options.preFetch)) {
			preFetchAge = 0.333;
		} else {
			preFetchAge = max(min(Number(options.preFetch), 1), 0);
		}
		if (preFetchAge) {
			preFetchTimeouts = {};
			preFetchAge = (1 - preFetchAge) * maxAge;
			conf.on('get' + postfix, function (id, args, context) {
				if (!preFetchTimeouts[id]) {
					preFetchTimeouts[id] =  setTimeout(function () {
						delete preFetchTimeouts[id];
						conf.delete(id);
						if (options.async) {
							args = aFrom(args);
							args.push(noop);
						}
						conf.memoized.apply(context, args);
					}, 0);
				}
			});
		}
	}

	conf.on('clear' + postfix, function () {
		forEach(timeouts, function (id) { clearTimeout(id); });
		timeouts = {};
		if (preFetchTimeouts) {
			forEach(preFetchTimeouts, function (id) { clearTimeout(id); });
			preFetchTimeouts = {};
		}
	});
};

},{"../lib/registered-extensions":351,"es5-ext/array/from":272,"es5-ext/function/noop":281,"es5-ext/object/for-each":304,"timers-ext/valid-timeout":366}],346:[function(require,module,exports){
// Limit cache size, LRU (least recently used) algorithm.

'use strict';

var toPosInteger = require('es5-ext/number/to-pos-integer')
  , lruQueue     = require('lru-queue')
  , extensions   = require('../lib/registered-extensions');

extensions.max = function (max, conf, options) {
	var postfix, queue, hit;

	max = toPosInteger(max);
	if (!max) return;

	queue = lruQueue(max);
	postfix = (options.async && extensions.async) ? 'async' : '';

	conf.on('set' + postfix, hit = function (id) {
		id = queue.hit(id);
		if (id === undefined) return;
		conf.delete(id);
	});
	conf.on('get' + postfix, hit);
	conf.on('delete' + postfix, queue.delete);
	conf.on('clear' + postfix, queue.clear);
};

},{"../lib/registered-extensions":351,"es5-ext/number/to-pos-integer":296,"lru-queue":357}],347:[function(require,module,exports){
// Reference counter, useful for garbage collector like functionality

'use strict';

var d          = require('d')
  , extensions = require('../lib/registered-extensions')

  , create = Object.create, defineProperties = Object.defineProperties;

extensions.refCounter = function (ignore, conf, options) {
	var cache, postfix;

	cache = create(null);
	postfix = (options.async && extensions.async) ? 'async' : '';

	conf.on('set' + postfix, function (id, length) { cache[id] = length || 1; });
	conf.on('get' + postfix, function (id) { ++cache[id]; });
	conf.on('delete' + postfix, function (id) { delete cache[id]; });
	conf.on('clear' + postfix, function () { cache = {}; });

	defineProperties(conf.memoized, {
		deleteRef: d(function () {
			var id = conf.get(arguments);
			if (id === null) return null;
			if (!cache[id]) return null;
			if (!--cache[id]) {
				conf.delete(id);
				return true;
			}
			return false;
		}),
		getRefCount: d(function () {
			var id = conf.get(arguments);
			if (id === null) return 0;
			if (!cache[id]) return 0;
			return cache[id];
		})
	});
};

},{"../lib/registered-extensions":351,"d":266}],348:[function(require,module,exports){
'use strict';

var normalizeOpts = require('es5-ext/object/normalize-options')
  , resolveLength = require('./lib/resolve-length')
  , plain         = require('./plain');

module.exports = function (fn/*, options*/) {
	var options = normalizeOpts(arguments[1]), length;

	if (!options.normalizer) {
		length = options.length = resolveLength(options.length, fn.length, options.async);
		if (length !== 0) {
			if (options.primitive) {
				if (length === false) {
					options.normalizer = require('./normalizers/primitive');
				} else if (length > 1) {
					options.normalizer = require('./normalizers/get-primitive-fixed')(length);
				}
			} else {
				if (length === false) options.normalizer = require('./normalizers/get')();
				else if (length === 1) options.normalizer = require('./normalizers/get-1')();
				else options.normalizer = require('./normalizers/get-fixed')(length);
			}
		}
	}

	// Assure extensions
	if (options.async) require('./ext/async');
	if (options.dispose) require('./ext/dispose');
	if (options.maxAge) require('./ext/max-age');
	if (options.max) require('./ext/max');
	if (options.refCounter) require('./ext/ref-counter');

	return plain(fn, options);
};

},{"./ext/async":343,"./ext/dispose":344,"./ext/max":346,"./ext/max-age":345,"./ext/ref-counter":347,"./lib/resolve-length":352,"./normalizers/get":362,"./normalizers/get-1":359,"./normalizers/get-fixed":360,"./normalizers/get-primitive-fixed":361,"./normalizers/primitive":363,"./plain":364,"es5-ext/object/normalize-options":313}],349:[function(require,module,exports){
'use strict';

var customError      = require('es5-ext/error/custom')
  , defineLength     = require('es5-ext/function/_define-length')
  , d                = require('d')
  , ee               = require('event-emitter').methods
  , resolveResolve   = require('./resolve-resolve')
  , resolveNormalize = require('./resolve-normalize')

  , apply = Function.prototype.apply, call = Function.prototype.call
  , create = Object.create, hasOwnProperty = Object.prototype.hasOwnProperty
  , defineProperties = Object.defineProperties
  , on = ee.on, emit = ee.emit;

module.exports = function (original, length, options) {
	var cache = create(null), conf, memLength, get, set, del, clear, extDel, normalizer
	  , getListeners, setListeners, deleteListeners, memoized, resolve;
	if (length !== false) memLength = length;
	else if (isNaN(original.length)) memLength = 1;
	else memLength = original.length;

	if (options.normalizer) {
		normalizer = resolveNormalize(options.normalizer);
		get = normalizer.get;
		set = normalizer.set;
		del = normalizer.delete;
		clear = normalizer.clear;
	}
	if (options.resolvers != null) resolve = resolveResolve(options.resolvers);

	if (get) {
		memoized = defineLength(function (arg) {
			var id, result, args = arguments;
			if (resolve) args = resolve(args);
			id = get(args);
			if (id !== null) {
				if (hasOwnProperty.call(cache, id)) {
					if (getListeners) conf.emit('get', id, args, this);
					return cache[id];
				}
			}
			if (args.length === 1) result = call.call(original, this, arg);
			else result = apply.call(original, this, args);
			if (id === null) {
				id = get(args);
				if (id !== null) throw customError("Circular invocation", 'CIRCULAR_INVOCATION');
				id = set(args);
			} else if (hasOwnProperty.call(cache, id)) {
				throw customError("Circular invocation", 'CIRCULAR_INVOCATION');
			}
			cache[id] = result;
			if (setListeners) conf.emit('set', id);
			return result;
		}, memLength);
	} else if (length === 0) {
		memoized = function () {
			var result;
			if (hasOwnProperty.call(cache, 'data')) {
				if (getListeners) conf.emit('get', 'data', arguments, this);
				return cache.data;
			}
			if (!arguments.length) result = call.call(original, this);
			else result = apply.call(original, this, arguments);
			if (hasOwnProperty.call(cache, 'data')) {
				throw customError("Circular invocation", 'CIRCULAR_INVOCATION');
			}
			cache.data = result;
			if (setListeners) conf.emit('set', 'data');
			return result;
		};
	} else {
		memoized = function (arg) {
			var result, args = arguments, id;
			if (resolve) args = resolve(arguments);
			id = String(args[0]);
			if (hasOwnProperty.call(cache, id)) {
				if (getListeners) conf.emit('get', id, args, this);
				return cache[id];
			}
			if (args.length === 1) result = call.call(original, this, args[0]);
			else result = apply.call(original, this, args);
			if (hasOwnProperty.call(cache, id)) {
				throw customError("Circular invocation", 'CIRCULAR_INVOCATION');
			}
			cache[id] = result;
			if (setListeners) conf.emit('set', id);
			return result;
		};
	}
	conf = {
		original: original,
		memoized: memoized,
		get: function (args) {
			if (resolve) args = resolve(args);
			if (get) return get(args);
			return String(args[0]);
		},
		has: function (id) { return hasOwnProperty.call(cache, id); },
		delete: function (id) {
			var result;
			if (!hasOwnProperty.call(cache, id)) return;
			if (del) del(id);
			result = cache[id];
			delete cache[id];
			if (deleteListeners) conf.emit('delete', id, result);
		},
		clear: function () {
			var oldCache = cache;
			if (clear) clear();
			cache = create(null);
			conf.emit('clear', oldCache);
		},
		on: function (type, listener) {
			if (type === 'get') getListeners = true;
			else if (type === 'set') setListeners = true;
			else if (type === 'delete') deleteListeners = true;
			return on.call(this, type, listener);
		},
		emit: emit,
		updateEnv: function () { original = conf.original; }
	};
	if (get) {
		extDel = defineLength(function (arg) {
			var id, args = arguments;
			if (resolve) args = resolve(args);
			id = get(args);
			if (id === null) return;
			conf.delete(id);
		}, memLength);
	} else if (length === 0) {
		extDel = function () { return conf.delete('data'); };
	} else {
		extDel = function (arg) {
			if (resolve) arg = resolve(arguments)[0];
			return conf.delete(arg);
		};
	}
	defineProperties(memoized, {
		__memoized__: d(true),
		delete: d(extDel),
		clear: d(conf.clear)
	});
	return conf;
};

},{"./resolve-normalize":353,"./resolve-resolve":354,"d":266,"es5-ext/error/custom":276,"es5-ext/function/_define-length":278,"event-emitter":356}],350:[function(require,module,exports){
'use strict';

var forEach       = require('es5-ext/object/for-each')
  , normalizeOpts = require('es5-ext/object/normalize-options')
  , callable      = require('es5-ext/object/valid-callable')
  , lazy          = require('d/lazy')
  , resolveLength = require('./resolve-length')
  , extensions    = require('./registered-extensions');

module.exports = function (memoize) {
	return function (props) {
		forEach(props, function (desc, name) {
			var fn = callable(desc.value), length;
			desc.value = function (options) {
				if (options.getNormalizer) {
					options = normalizeOpts(options);
					if (length === undefined) {
						length = resolveLength(options.length, fn.length, options.async && extensions.async);
					}
					options.normalizer = options.getNormalizer(length);
					delete options.getNormalizer;
				}
				return memoize(fn.bind(this), options);
			};
		});
		return lazy(props);
	};
};

},{"./registered-extensions":351,"./resolve-length":352,"d/lazy":267,"es5-ext/object/for-each":304,"es5-ext/object/normalize-options":313,"es5-ext/object/valid-callable":318}],351:[function(require,module,exports){
'use strict';

},{}],352:[function(require,module,exports){
'use strict';

var toPosInt = require('es5-ext/number/to-pos-integer');

module.exports = function (optsLength, fnLength, isAsync) {
	var length;
	if (isNaN(optsLength)) {
		length = fnLength;
		if (!(length >= 0)) return 1;
		if (isAsync && length) return length - 1;
		return length;
	}
	if (optsLength === false) return false;
	return toPosInt(optsLength);
};

},{"es5-ext/number/to-pos-integer":296}],353:[function(require,module,exports){
'use strict';

var callable = require('es5-ext/object/valid-callable');

module.exports = function (userNormalizer) {
	var normalizer;
	if (typeof userNormalizer === 'function') return { set: userNormalizer, get: userNormalizer };
	normalizer = { get: callable(userNormalizer.get) };
	if (userNormalizer.set !== undefined) {
		normalizer.set = callable(userNormalizer.set);
		normalizer.delete = callable(userNormalizer.delete);
		normalizer.clear = callable(userNormalizer.clear);
		return normalizer;
	}
	normalizer.set = normalizer.get;
	return normalizer;
};

},{"es5-ext/object/valid-callable":318}],354:[function(require,module,exports){
'use strict';

var toArray  = require('es5-ext/array/to-array')
  , callable = require('es5-ext/object/valid-callable')

  , slice = Array.prototype.slice
  , resolveArgs;

resolveArgs = function (args) {
	return this.map(function (r, i) {
		return r ? r(args[i]) : args[i];
	}).concat(slice.call(args, this.length));
};

module.exports = function (resolvers) {
	resolvers = toArray(resolvers);
	resolvers.forEach(function (r) {
		if (r != null) callable(r);
	});
	return resolveArgs.bind(resolvers);
};

},{"es5-ext/array/to-array":275,"es5-ext/object/valid-callable":318}],355:[function(require,module,exports){
'use strict';

module.exports = require('./lib/methods')(require('./'));

},{"./":348,"./lib/methods":350}],356:[function(require,module,exports){
'use strict';

var d        = require('d')
  , callable = require('es5-ext/object/valid-callable')

  , apply = Function.prototype.apply, call = Function.prototype.call
  , create = Object.create, defineProperty = Object.defineProperty
  , defineProperties = Object.defineProperties
  , hasOwnProperty = Object.prototype.hasOwnProperty
  , descriptor = { configurable: true, enumerable: false, writable: true }

  , on, once, off, emit, methods, descriptors, base;

on = function (type, listener) {
	var data;

	callable(listener);

	if (!hasOwnProperty.call(this, '__ee__')) {
		data = descriptor.value = create(null);
		defineProperty(this, '__ee__', descriptor);
		descriptor.value = null;
	} else {
		data = this.__ee__;
	}
	if (!data[type]) data[type] = listener;
	else if (typeof data[type] === 'object') data[type].push(listener);
	else data[type] = [data[type], listener];

	return this;
};

once = function (type, listener) {
	var once, self;

	callable(listener);
	self = this;
	on.call(this, type, once = function () {
		off.call(self, type, once);
		apply.call(listener, this, arguments);
	});

	once.__eeOnceListener__ = listener;
	return this;
};

off = function (type, listener) {
	var data, listeners, candidate, i;

	callable(listener);

	if (!hasOwnProperty.call(this, '__ee__')) return this;
	data = this.__ee__;
	if (!data[type]) return this;
	listeners = data[type];

	if (typeof listeners === 'object') {
		for (i = 0; (candidate = listeners[i]); ++i) {
			if ((candidate === listener) ||
					(candidate.__eeOnceListener__ === listener)) {
				if (listeners.length === 2) data[type] = listeners[i ? 0 : 1];
				else listeners.splice(i, 1);
			}
		}
	} else {
		if ((listeners === listener) ||
				(listeners.__eeOnceListener__ === listener)) {
			delete data[type];
		}
	}

	return this;
};

emit = function (type) {
	var i, l, listener, listeners, args;

	if (!hasOwnProperty.call(this, '__ee__')) return;
	listeners = this.__ee__[type];
	if (!listeners) return;

	if (typeof listeners === 'object') {
		l = arguments.length;
		args = new Array(l - 1);
		for (i = 1; i < l; ++i) args[i - 1] = arguments[i];

		listeners = listeners.slice();
		for (i = 0; (listener = listeners[i]); ++i) {
			apply.call(listener, this, args);
		}
	} else {
		switch (arguments.length) {
		case 1:
			call.call(listeners, this);
			break;
		case 2:
			call.call(listeners, this, arguments[1]);
			break;
		case 3:
			call.call(listeners, this, arguments[1], arguments[2]);
			break;
		default:
			l = arguments.length;
			args = new Array(l - 1);
			for (i = 1; i < l; ++i) {
				args[i - 1] = arguments[i];
			}
			apply.call(listeners, this, args);
		}
	}
};

methods = {
	on: on,
	once: once,
	off: off,
	emit: emit
};

descriptors = {
	on: d(on),
	once: d(once),
	off: d(off),
	emit: d(emit)
};

base = defineProperties({}, descriptors);

module.exports = exports = function (o) {
	return (o == null) ? create(base) : defineProperties(Object(o), descriptors);
};
exports.methods = methods;

},{"d":266,"es5-ext/object/valid-callable":318}],357:[function(require,module,exports){
'use strict';

var toPosInt = require('es5-ext/number/to-pos-integer')

  , create = Object.create, hasOwnProperty = Object.prototype.hasOwnProperty;

module.exports = function (limit) {
	var size = 0, base = 1, queue = create(null), map = create(null), index = 0, del;
	limit = toPosInt(limit);
	return {
		hit: function (id) {
			var oldIndex = map[id], nuIndex = ++index;
			queue[nuIndex] = id;
			map[id] = nuIndex;
			if (!oldIndex) {
				++size;
				if (size <= limit) return;
				id = queue[base];
				del(id);
				return id;
			}
			delete queue[oldIndex];
			if (base !== oldIndex) return;
			while (!hasOwnProperty.call(queue, ++base)) continue; //jslint: skip
		},
		delete: del = function (id) {
			var oldIndex = map[id];
			if (!oldIndex) return;
			delete queue[oldIndex];
			delete map[id];
			--size;
			if (base !== oldIndex) return;
			if (!size) {
				index = 0;
				base = 1;
				return;
			}
			while (!hasOwnProperty.call(queue, ++base)) continue; //jslint: skip
		},
		clear: function () {
			size = 0;
			base = 1;
			queue = create(null);
			map = create(null);
			index = 0;
		}
	};
};

},{"es5-ext/number/to-pos-integer":296}],358:[function(require,module,exports){
(function (process){
'use strict';

var callable, byObserver;

callable = function (fn) {
	if (typeof fn !== 'function') throw new TypeError(fn + " is not a function");
	return fn;
};

byObserver = function (Observer) {
	var node = document.createTextNode(''), queue, i = 0;
	new Observer(function () {
		var data;
		if (!queue) return;
		data = queue;
		queue = null;
		if (typeof data === 'function') {
			data();
			return;
		}
		data.forEach(function (fn) { fn(); });
	}).observe(node, { characterData: true });
	return function (fn) {
		callable(fn);
		if (queue) {
			if (typeof queue === 'function') queue = [queue, fn];
			else queue.push(fn);
			return;
		}
		queue = fn;
		node.data = (i = ++i % 2);
	};
};

module.exports = (function () {
	// Node.js
	if ((typeof process !== 'undefined') && process &&
			(typeof process.nextTick === 'function')) {
		return process.nextTick;
	}

	// MutationObserver=
	if ((typeof document === 'object') && document) {
		if (typeof MutationObserver === 'function') {
			return byObserver(MutationObserver);
		}
		if (typeof WebKitMutationObserver === 'function') {
			return byObserver(WebKitMutationObserver);
		}
	}

	// W3C Draft
	// http://dvcs.w3.org/hg/webperf/raw-file/tip/specs/setImmediate/Overview.html
	if (typeof setImmediate === 'function') {
		return function (cb) { setImmediate(callable(cb)); };
	}

	// Wide available standard
	if (typeof setTimeout === 'function') {
		return function (cb) { setTimeout(callable(cb), 0); };
	}

	return null;
}());

}).call(this,require('_process'))
},{"_process":215}],359:[function(require,module,exports){
'use strict';

var indexOf = require('es5-ext/array/#/e-index-of');

module.exports = function () {
	var lastId = 0, argsMap = [], cache = [];
	return {
		get: function (args) {
			var index = indexOf.call(argsMap, args[0]);
			return (index === -1) ? null : cache[index];
		},
		set: function (args) {
			argsMap.push(args[0]);
			cache.push(++lastId);
			return lastId;
		},
		delete: function (id) {
			var index = indexOf.call(cache, id);
			if (index !== -1) {
				argsMap.splice(index, 1);
				cache.splice(index, 1);
			}
		},
		clear: function () {
			argsMap = [];
			cache = [];
		}
	};
};

},{"es5-ext/array/#/e-index-of":269}],360:[function(require,module,exports){
'use strict';

var indexOf = require('es5-ext/array/#/e-index-of')
  , create = Object.create;

module.exports = function (length) {
	var lastId = 0, map = [[], []], cache = create(null);
	return {
		get: function (args) {
			var index = 0, set = map, i;
			while (index < (length - 1)) {
				i = indexOf.call(set[0], args[index]);
				if (i === -1) return null;
				set = set[1][i];
				++index;
			}
			i = indexOf.call(set[0], args[index]);
			if (i === -1) return null;
			return set[1][i] || null;
		},
		set: function (args) {
			var index = 0, set = map, i;
			while (index < (length - 1)) {
				i = indexOf.call(set[0], args[index]);
				if (i === -1) {
					i = set[0].push(args[index]) - 1;
					set[1].push([[], []]);
				}
				set = set[1][i];
				++index;
			}
			i = indexOf.call(set[0], args[index]);
			if (i === -1) {
				i = set[0].push(args[index]) - 1;
			}
			set[1][i] = ++lastId;
			cache[lastId] = args;
			return lastId;
		},
		delete: function (id) {
			var index = 0, set = map, i, path = [], args = cache[id];
			while (index < (length - 1)) {
				i = indexOf.call(set[0], args[index]);
				if (i === -1) {
					return;
				}
				path.push(set, i);
				set = set[1][i];
				++index;
			}
			i = indexOf.call(set[0], args[index]);
			if (i === -1) {
				return;
			}
			id = set[1][i];
			set[0].splice(i, 1);
			set[1].splice(i, 1);
			while (!set[0].length && path.length) {
				i = path.pop();
				set = path.pop();
				set[0].splice(i, 1);
				set[1].splice(i, 1);
			}
			delete cache[id];
		},
		clear: function () {
			map = [[], []];
			cache = create(null);
		}
	};
};

},{"es5-ext/array/#/e-index-of":269}],361:[function(require,module,exports){
'use strict';

module.exports = function (length) {
	if (!length) {
		return function () { return ''; };
	}
	return function (args) {
		var id = String(args[0]), i = 0, l = length;
		while (--l) { id += '\u0001' + args[++i]; }
		return id;
	};
};

},{}],362:[function(require,module,exports){
'use strict';

var indexOf = require('es5-ext/array/#/e-index-of')
  , create = Object.create;

module.exports = function () {
	var lastId = 0, map = [], cache = create(null);
	return {
		get: function (args) {
			var index = 0, set = map, i, length = args.length;
			if (length === 0) return set[length] || null;
			if ((set = set[length])) {
				while (index < (length - 1)) {
					i = indexOf.call(set[0], args[index]);
					if (i === -1) return null;
					set = set[1][i];
					++index;
				}
				i = indexOf.call(set[0], args[index]);
				if (i === -1) return null;
				return set[1][i] || null;
			}
			return null;
		},
		set: function (args) {
			var index = 0, set = map, i, length = args.length;
			if (length === 0) {
				set[length] = ++lastId;
			} else {
				if (!set[length]) {
					set[length] = [[], []];
				}
				set = set[length];
				while (index < (length - 1)) {
					i = indexOf.call(set[0], args[index]);
					if (i === -1) {
						i = set[0].push(args[index]) - 1;
						set[1].push([[], []]);
					}
					set = set[1][i];
					++index;
				}
				i = indexOf.call(set[0], args[index]);
				if (i === -1) {
					i = set[0].push(args[index]) - 1;
				}
				set[1][i] = ++lastId;
			}
			cache[lastId] = args;
			return lastId;
		},
		delete: function (id) {
			var index = 0, set = map, i, args = cache[id], length = args.length
			  , path = [];
			if (length === 0) {
				delete set[length];
			} else if ((set = set[length])) {
				while (index < (length - 1)) {
					i = indexOf.call(set[0], args[index]);
					if (i === -1) {
						return;
					}
					path.push(set, i);
					set = set[1][i];
					++index;
				}
				i = indexOf.call(set[0], args[index]);
				if (i === -1) {
					return;
				}
				id = set[1][i];
				set[0].splice(i, 1);
				set[1].splice(i, 1);
				while (!set[0].length && path.length) {
					i = path.pop();
					set = path.pop();
					set[0].splice(i, 1);
					set[1].splice(i, 1);
				}
			}
			delete cache[id];
		},
		clear: function () {
			map = [];
			cache = create(null);
		}
	};
};

},{"es5-ext/array/#/e-index-of":269}],363:[function(require,module,exports){
'use strict';

module.exports = function (args) {
	var id, i, length = args.length;
	if (!length) return '\u0002';
	id = String(args[i = 0]);
	while (--length) id += '\u0001' + args[++i];
	return id;
};

},{}],364:[function(require,module,exports){
'use strict';

var callable      = require('es5-ext/object/valid-callable')
  , forEach       = require('es5-ext/object/for-each')
  , extensions    = require('./lib/registered-extensions')
  , configure     = require('./lib/configure-map')
  , resolveLength = require('./lib/resolve-length')

  , hasOwnProperty = Object.prototype.hasOwnProperty;

module.exports = function self(fn/*, options */) {
	var options, length, conf;

	callable(fn);
	options = Object(arguments[1]);

	// Do not memoize already memoized function
	if (hasOwnProperty.call(fn, '__memoized__') && !options.force) return fn;

	// Resolve length;
	length = resolveLength(options.length, fn.length, options.async && extensions.async);

	// Configure cache map
	conf = configure(fn, length, options);

	// Bind eventual extensions
	forEach(extensions, function (fn, name) {
		if (options[name]) fn(options[name], conf, options);
	});

	if (self.__profiler__) self.__profiler__(conf);

	conf.updateEnv();
	return conf.memoized;
};

},{"./lib/configure-map":349,"./lib/registered-extensions":351,"./lib/resolve-length":352,"es5-ext/object/for-each":304,"es5-ext/object/valid-callable":318}],365:[function(require,module,exports){
'use strict';

module.exports = 2147483647;

},{}],366:[function(require,module,exports){
'use strict';

var toPosInt   = require('es5-ext/number/to-pos-integer')
  , maxTimeout = require('./max-timeout');

module.exports = function (value) {
	value = toPosInt(value);
	if (value > maxTimeout) throw new TypeError(value + " exceeds maximum possible timeout");
	return value;
};

},{"./max-timeout":365,"es5-ext/number/to-pos-integer":296}],367:[function(require,module,exports){
'use strict';

module.exports = '\x1b[2J\x1b[0;0H';

},{}],368:[function(require,module,exports){
'use strict';

var reAnsi        = require('ansi-regex')
  , stringifiable = require('es5-ext/object/validate-stringifiable-value')
  , length        = require('./get-stripped-length')
  , sgr           = require('./lib/sgr')

  , max = Math.max;

var Token = function Token(token) {
	this.token = token;
};

var tokenize = function (str) {
	var match = reAnsi().exec(str);

	if (!match) {
		return [ str ];
	}

	var index = match.index
	  , head, prehead, tail;

	if (index === 0) {
		head = match[0];
		tail = str.slice(head.length);

		return [ new Token(head) ].concat(tokenize(tail));
	}

	prehead = str.slice(0, index);
	head = match[0];
	tail = str.slice(index + head.length);

	return [ prehead, new Token(head) ].concat(tokenize(tail));
};

var isChunkInSlice = function (chunk, index, begin, end) {
	var endIndex = chunk.length + index;

	if (begin > endIndex) return false;
	if (end < index) return false;
	return true;
};

var sliceSeq = function (seq, begin, end) {
	var sliced = seq.reduce(function (state, chunk) {
		var index = state.index;

		if (!(chunk instanceof Token)) {
			var nextChunk = '';

			if (isChunkInSlice(chunk, index, begin, end)) {
				var relBegin = Math.max(begin - index, 0)
				  , relEnd   = Math.min(end - index, chunk.length);

				nextChunk = chunk.slice(relBegin, relEnd);
			}

			state.seq.push(nextChunk);
			state.index = index + chunk.length;
		} else {
			var code = sgr.extractCode(chunk.token);

			if (index <= begin) {
				if (code in sgr.openers) {
					sgr.openStyle(state.preOpeners, code);
				}
				if (code in sgr.closers) {
					sgr.closeStyle(state.preOpeners, code);
				}
			} else if (index < end) {
				if (code in sgr.openers) {
					sgr.openStyle(state.inOpeners, code);
					state.seq.push(chunk);
				} else if (code in sgr.closers) {
					state.inClosers.push(code);
					state.seq.push(chunk);
				}
			}
		}

		return state;
	}, {
		index: 0,
		seq: [],

		// preOpeners -> [ mod ]
		// preOpeners must be prepended to the slice if they wasn't closed til the end of it
		// preOpeners must be closed if they wasn't closed til the end of the slice
		preOpeners: [],

		// inOpeners  -> [ mod ]
		// inOpeners already in the slice and must not be prepended to the slice
		// inOpeners must be closed if they wasn't closed til the end of the slice
		inOpeners:  [], // opener CSI inside slice

		// inClosers -> [ code ]
		// closer CSIs for determining which pre/in-Openers must be closed
		inClosers:  []
	});

	sliced.seq = [].concat(
		sgr.prepend(sliced.preOpeners),
		sliced.seq,
		sgr.complete([].concat(sliced.preOpeners, sliced.inOpeners), sliced.inClosers)
	);

	return sliced.seq;
};

module.exports = function (str/*, begin, end*/) {
	var seq, begin = Number(arguments[1]), end = Number(arguments[2]), len;

	str = stringifiable(str);
	len = length(str);

	if (isNaN(begin)) {
		begin = 0;
	}
	if (isNaN(end)) {
		end = len;
	}
	if (begin < 0) {
		begin = max(len + begin, 0);
	}
	if (end < 0) {
		end = max(len + end, 0);
	}

	seq = tokenize(str);
	seq = sliceSeq(seq, begin, end);
	return seq.map(function (chunk) {
		if (chunk instanceof Token) {
			return chunk.token;
		}

		return chunk;
	}).join('');
};

},{"./get-stripped-length":258,"./lib/sgr":260,"ansi-regex":264,"es5-ext/object/validate-stringifiable-value":321}],369:[function(require,module,exports){
// Strip ANSI formatting from string

'use strict';

var stringifiable = require('es5-ext/object/validate-stringifiable')
  , r             = require('ansi-regex')();

module.exports = function (str) { return stringifiable(str).replace(r, ''); };

},{"ansi-regex":264,"es5-ext/object/validate-stringifiable":322}],370:[function(require,module,exports){
'use strict';

var compose      = require('es5-ext/function/#/compose')
  , callable     = require('es5-ext/object/valid-callable')
  , d            = require('d')
  , validTimeout = require('timers-ext/valid-timeout')

  , chars = '-\\|/', l = chars.length, ThrobberIterator;

ThrobberIterator = function () {};
Object.defineProperties(ThrobberIterator.prototype, {
	index: d(-1),
	running: d(false),
	next: d(function () {
		var str = this.running ? '\u0008' : '';
		if (!this.running) this.running = true;
		return str + chars[this.index = ((this.index + 1) % l)];
	}),
	reset: d(function () {
		if (!this.running) return '';
		this.index = -1;
		this.running = false;
		return '\u0008';
	})
});

module.exports = exports = function (write, interval/*, format*/) {
	var format = arguments[2], token, iterator = new ThrobberIterator();
	callable(write);
	interval = validTimeout(interval);
	if (format !== undefined) write = compose.call(write, callable(format));
	return {
		start: function () {
			if (token) return;
			token = setInterval(function () { write(iterator.next()); }, interval);
		},
		restart: function () {
			this.stop();
			this.start();
		},
		stop: function () {
			if (!token) return;
			clearInterval(token);
			token = null;
			write(iterator.reset());
		}
	};
};

Object.defineProperty(exports, 'Iterator', d(ThrobberIterator));

},{"d":266,"es5-ext/function/#/compose":277,"es5-ext/object/valid-callable":318,"timers-ext/valid-timeout":366}],371:[function(require,module,exports){
(function (process){
'use strict';

var d = require('d');

Object.defineProperties(exports, {
	width: d.gs('ce', function () { return process.stdout.columns || 0; }),
	height: d.gs('ce', function () { return process.stdout.rows || 0; })
});

}).call(this,require('_process'))
},{"_process":215,"d":266}],372:[function(require,module,exports){
/*

The MIT License (MIT)

Original Library 
  - Copyright (c) Marak Squires

Additional functionality
 - Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/

var colors = {};
module['exports'] = colors;

colors.themes = {};

var ansiStyles = colors.styles = require('./styles');
var defineProps = Object.defineProperties;

colors.supportsColor = require('./system/supports-colors');

if (typeof colors.enabled === "undefined") {
  colors.enabled = colors.supportsColor;
}

colors.stripColors = colors.strip = function(str){
  return ("" + str).replace(/\x1B\[\d+m/g, '');
};


var stylize = colors.stylize = function stylize (str, style) {
  if (!colors.enabled) {
    return str+'';
  }

  return ansiStyles[style].open + str + ansiStyles[style].close;
}

var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
var escapeStringRegexp = function (str) {
  if (typeof str !== 'string') {
    throw new TypeError('Expected a string');
  }
  return str.replace(matchOperatorsRe,  '\\$&');
}

function build(_styles) {
  var builder = function builder() {
    return applyStyle.apply(builder, arguments);
  };
  builder._styles = _styles;
  // __proto__ is used because we must return a function, but there is
  // no way to create a function with a different prototype.
  builder.__proto__ = proto;
  return builder;
}

var styles = (function () {
  var ret = {};
  ansiStyles.grey = ansiStyles.gray;
  Object.keys(ansiStyles).forEach(function (key) {
    ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');
    ret[key] = {
      get: function () {
        return build(this._styles.concat(key));
      }
    };
  });
  return ret;
})();

var proto = defineProps(function colors() {}, styles);

function applyStyle() {
  var args = arguments;
  var argsLen = args.length;
  var str = argsLen !== 0 && String(arguments[0]);
  if (argsLen > 1) {
    for (var a = 1; a < argsLen; a++) {
      str += ' ' + args[a];
    }
  }

  if (!colors.enabled || !str) {
    return str;
  }

  var nestedStyles = this._styles;

  var i = nestedStyles.length;
  while (i--) {
    var code = ansiStyles[nestedStyles[i]];
    str = code.open + str.replace(code.closeRe, code.open) + code.close;
  }

  return str;
}

function applyTheme (theme) {
  for (var style in theme) {
    (function(style){
      colors[style] = function(str){
        if (typeof theme[style] === 'object'){
          var out = str;
          for (var i in theme[style]){
            out = colors[theme[style][i]](out);
          }
          return out;
        }
        return colors[theme[style]](str);
      };
    })(style)
  }
}

colors.setTheme = function (theme) {
  if (typeof theme === 'string') {
    try {
      colors.themes[theme] = require(theme);
      applyTheme(colors.themes[theme]);
      return colors.themes[theme];
    } catch (err) {
      console.log(err);
      return err;
    }
  } else {
    applyTheme(theme);
  }
};

function init() {
  var ret = {};
  Object.keys(styles).forEach(function (name) {
    ret[name] = {
      get: function () {
        return build([name]);
      }
    };
  });
  return ret;
}

var sequencer = function sequencer (map, str) {
  var exploded = str.split(""), i = 0;
  exploded = exploded.map(map);
  return exploded.join("");
};

// custom formatter methods
colors.trap = require('./custom/trap');
colors.zalgo = require('./custom/zalgo');

// maps
colors.maps = {};
colors.maps.america = require('./maps/america');
colors.maps.zebra = require('./maps/zebra');
colors.maps.rainbow = require('./maps/rainbow');
colors.maps.random = require('./maps/random')

for (var map in colors.maps) {
  (function(map){
    colors[map] = function (str) {
      return sequencer(colors.maps[map], str);
    }
  })(map)
}

defineProps(colors, init());
},{"./custom/trap":373,"./custom/zalgo":374,"./maps/america":377,"./maps/rainbow":378,"./maps/random":379,"./maps/zebra":380,"./styles":381,"./system/supports-colors":382}],373:[function(require,module,exports){
module['exports'] = function runTheTrap (text, options) {
  var result = "";
  text = text || "Run the trap, drop the bass";
  text = text.split('');
  var trap = {
    a: ["\u0040", "\u0104", "\u023a", "\u0245", "\u0394", "\u039b", "\u0414"],
    b: ["\u00df", "\u0181", "\u0243", "\u026e", "\u03b2", "\u0e3f"],
    c: ["\u00a9", "\u023b", "\u03fe"],
    d: ["\u00d0", "\u018a", "\u0500" , "\u0501" ,"\u0502", "\u0503"],
    e: ["\u00cb", "\u0115", "\u018e", "\u0258", "\u03a3", "\u03be", "\u04bc", "\u0a6c"],
    f: ["\u04fa"],
    g: ["\u0262"],
    h: ["\u0126", "\u0195", "\u04a2", "\u04ba", "\u04c7", "\u050a"],
    i: ["\u0f0f"],
    j: ["\u0134"],
    k: ["\u0138", "\u04a0", "\u04c3", "\u051e"],
    l: ["\u0139"],
    m: ["\u028d", "\u04cd", "\u04ce", "\u0520", "\u0521", "\u0d69"],
    n: ["\u00d1", "\u014b", "\u019d", "\u0376", "\u03a0", "\u048a"],
    o: ["\u00d8", "\u00f5", "\u00f8", "\u01fe", "\u0298", "\u047a", "\u05dd", "\u06dd", "\u0e4f"],
    p: ["\u01f7", "\u048e"],
    q: ["\u09cd"],
    r: ["\u00ae", "\u01a6", "\u0210", "\u024c", "\u0280", "\u042f"],
    s: ["\u00a7", "\u03de", "\u03df", "\u03e8"],
    t: ["\u0141", "\u0166", "\u0373"],
    u: ["\u01b1", "\u054d"],
    v: ["\u05d8"],
    w: ["\u0428", "\u0460", "\u047c", "\u0d70"],
    x: ["\u04b2", "\u04fe", "\u04fc", "\u04fd"],
    y: ["\u00a5", "\u04b0", "\u04cb"],
    z: ["\u01b5", "\u0240"]
  }
  text.forEach(function(c){
    c = c.toLowerCase();
    var chars = trap[c] || [" "];
    var rand = Math.floor(Math.random() * chars.length);
    if (typeof trap[c] !== "undefined") {
      result += trap[c][rand];
    } else {
      result += c;
    }
  });
  return result;

}

},{}],374:[function(require,module,exports){
// please no
module['exports'] = function zalgo(text, options) {
  text = text || "   he is here   ";
  var soul = {
    "up" : [
      '̍', '̎', '̄', '̅',
      '̿', '̑', '̆', '̐',
      '͒', '͗', '͑', '̇',
      '̈', '̊', '͂', '̓',
      '̈', '͊', '͋', '͌',
      '̃', '̂', '̌', '͐',
      '̀', '́', '̋', '̏',
      '̒', '̓', '̔', '̽',
      '̉', 'ͣ', 'ͤ', 'ͥ',
      'ͦ', 'ͧ', 'ͨ', 'ͩ',
      'ͪ', 'ͫ', 'ͬ', 'ͭ',
      'ͮ', 'ͯ', '̾', '͛',
      '͆', '̚'
    ],
    "down" : [
      '̖', '̗', '̘', '̙',
      '̜', '̝', '̞', '̟',
      '̠', '̤', '̥', '̦',
      '̩', '̪', '̫', '̬',
      '̭', '̮', '̯', '̰',
      '̱', '̲', '̳', '̹',
      '̺', '̻', '̼', 'ͅ',
      '͇', '͈', '͉', '͍',
      '͎', '͓', '͔', '͕',
      '͖', '͙', '͚', '̣'
    ],
    "mid" : [
      '̕', '̛', '̀', '́',
      '͘', '̡', '̢', '̧',
      '̨', '̴', '̵', '̶',
      '͜', '͝', '͞',
      '͟', '͠', '͢', '̸',
      '̷', '͡', ' ҉'
    ]
  },
  all = [].concat(soul.up, soul.down, soul.mid),
  zalgo = {};

  function randomNumber(range) {
    var r = Math.floor(Math.random() * range);
    return r;
  }

  function is_char(character) {
    var bool = false;
    all.filter(function (i) {
      bool = (i === character);
    });
    return bool;
  }
  

  function heComes(text, options) {
    var result = '', counts, l;
    options = options || {};
    options["up"] =   typeof options["up"]   !== 'undefined' ? options["up"]   : true;
    options["mid"] =  typeof options["mid"]  !== 'undefined' ? options["mid"]  : true;
    options["down"] = typeof options["down"] !== 'undefined' ? options["down"] : true;
    options["size"] = typeof options["size"] !== 'undefined' ? options["size"] : "maxi";
    text = text.split('');
    for (l in text) {
      if (is_char(l)) {
        continue;
      }
      result = result + text[l];
      counts = {"up" : 0, "down" : 0, "mid" : 0};
      switch (options.size) {
      case 'mini':
        counts.up = randomNumber(8);
        counts.mid = randomNumber(2);
        counts.down = randomNumber(8);
        break;
      case 'maxi':
        counts.up = randomNumber(16) + 3;
        counts.mid = randomNumber(4) + 1;
        counts.down = randomNumber(64) + 3;
        break;
      default:
        counts.up = randomNumber(8) + 1;
        counts.mid = randomNumber(6) / 2;
        counts.down = randomNumber(8) + 1;
        break;
      }

      var arr = ["up", "mid", "down"];
      for (var d in arr) {
        var index = arr[d];
        for (var i = 0 ; i <= counts[index]; i++) {
          if (options[index]) {
            result = result + soul[index][randomNumber(soul[index].length)];
          }
        }
      }
    }
    return result;
  }
  // don't summon him
  return heComes(text, options);
}

},{}],375:[function(require,module,exports){
var colors = require('./colors');

module['exports'] = function () {

  //
  // Extends prototype of native string object to allow for "foo".red syntax
  //
  var addProperty = function (color, func) {
    String.prototype.__defineGetter__(color, func);
  };

  var sequencer = function sequencer (map, str) {
      return function () {
        var exploded = this.split(""), i = 0;
        exploded = exploded.map(map);
        return exploded.join("");
      }
  };

  addProperty('strip', function () {
    return colors.strip(this);
  });

  addProperty('stripColors', function () {
    return colors.strip(this);
  });

  addProperty("trap", function(){
    return colors.trap(this);
  });

  addProperty("zalgo", function(){
    return colors.zalgo(this);
  });

  addProperty("zebra", function(){
    return colors.zebra(this);
  });

  addProperty("rainbow", function(){
    return colors.rainbow(this);
  });

  addProperty("random", function(){
    return colors.random(this);
  });

  addProperty("america", function(){
    return colors.america(this);
  });

  //
  // Iterate through all default styles and colors
  //
  var x = Object.keys(colors.styles);
  x.forEach(function (style) {
    addProperty(style, function () {
      return colors.stylize(this, style);
    });
  });

  function applyTheme(theme) {
    //
    // Remark: This is a list of methods that exist
    // on String that you should not overwrite.
    //
    var stringPrototypeBlacklist = [
      '__defineGetter__', '__defineSetter__', '__lookupGetter__', '__lookupSetter__', 'charAt', 'constructor',
      'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'toLocaleString', 'toString', 'valueOf', 'charCodeAt',
      'indexOf', 'lastIndexof', 'length', 'localeCompare', 'match', 'replace', 'search', 'slice', 'split', 'substring',
      'toLocaleLowerCase', 'toLocaleUpperCase', 'toLowerCase', 'toUpperCase', 'trim', 'trimLeft', 'trimRight'
    ];

    Object.keys(theme).forEach(function (prop) {
      if (stringPrototypeBlacklist.indexOf(prop) !== -1) {
        console.log('warn: '.red + ('String.prototype' + prop).magenta + ' is probably something you don\'t want to override. Ignoring style name');
      }
      else {
        if (typeof(theme[prop]) === 'string') {
          colors[prop] = colors[theme[prop]];
          addProperty(prop, function () {
            return colors[theme[prop]](this);
          });
        }
        else {
          addProperty(prop, function () {
            var ret = this;
            for (var t = 0; t < theme[prop].length; t++) {
              ret = colors[theme[prop][t]](ret);
            }
            return ret;
          });
        }
      }
    });
  }

  colors.setTheme = function (theme) {
    if (typeof theme === 'string') {
      try {
        colors.themes[theme] = require(theme);
        applyTheme(colors.themes[theme]);
        return colors.themes[theme];
      } catch (err) {
        console.log(err);
        return err;
      }
    } else {
      applyTheme(theme);
    }
  };

};
},{"./colors":372}],376:[function(require,module,exports){
var colors = require('./colors');
module['exports'] = colors;

// Remark: By default, colors will add style properties to String.prototype
//
// If you don't wish to extend String.prototype you can do this instead and native String will not be touched
//
//   var colors = require('colors/safe);
//   colors.red("foo")
//
//
require('./extendStringPrototype')();
},{"./colors":372,"./extendStringPrototype":375}],377:[function(require,module,exports){
var colors = require('../colors');

module['exports'] = (function() {
  return function (letter, i, exploded) {
    if(letter === " ") return letter;
    switch(i%3) {
      case 0: return colors.red(letter);
      case 1: return colors.white(letter)
      case 2: return colors.blue(letter)
    }
  }
})();
},{"../colors":372}],378:[function(require,module,exports){
var colors = require('../colors');

module['exports'] = (function () {
  var rainbowColors = ['red', 'yellow', 'green', 'blue', 'magenta']; //RoY G BiV
  return function (letter, i, exploded) {
    if (letter === " ") {
      return letter;
    } else {
      return colors[rainbowColors[i++ % rainbowColors.length]](letter);
    }
  };
})();


},{"../colors":372}],379:[function(require,module,exports){
var colors = require('../colors');

module['exports'] = (function () {
  var available = ['underline', 'inverse', 'grey', 'yellow', 'red', 'green', 'blue', 'white', 'cyan', 'magenta'];
  return function(letter, i, exploded) {
    return letter === " " ? letter : colors[available[Math.round(Math.random() * (available.length - 1))]](letter);
  };
})();
},{"../colors":372}],380:[function(require,module,exports){
var colors = require('../colors');

module['exports'] = function (letter, i, exploded) {
  return i % 2 === 0 ? letter : colors.inverse(letter);
};
},{"../colors":372}],381:[function(require,module,exports){
/*
The MIT License (MIT)

Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/

var styles = {};
module['exports'] = styles;

var codes = {
  reset: [0, 0],

  bold: [1, 22],
  dim: [2, 22],
  italic: [3, 23],
  underline: [4, 24],
  inverse: [7, 27],
  hidden: [8, 28],
  strikethrough: [9, 29],

  black: [30, 39],
  red: [31, 39],
  green: [32, 39],
  yellow: [33, 39],
  blue: [34, 39],
  magenta: [35, 39],
  cyan: [36, 39],
  white: [37, 39],
  gray: [90, 39],
  grey: [90, 39],

  bgBlack: [40, 49],
  bgRed: [41, 49],
  bgGreen: [42, 49],
  bgYellow: [43, 49],
  bgBlue: [44, 49],
  bgMagenta: [45, 49],
  bgCyan: [46, 49],
  bgWhite: [47, 49],

  // legacy styles for colors pre v1.0.0
  blackBG: [40, 49],
  redBG: [41, 49],
  greenBG: [42, 49],
  yellowBG: [43, 49],
  blueBG: [44, 49],
  magentaBG: [45, 49],
  cyanBG: [46, 49],
  whiteBG: [47, 49]

};

Object.keys(codes).forEach(function (key) {
  var val = codes[key];
  var style = styles[key] = [];
  style.open = '\u001b[' + val[0] + 'm';
  style.close = '\u001b[' + val[1] + 'm';
});
},{}],382:[function(require,module,exports){
(function (process){
/*
The MIT License (MIT)

Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/

var argv = process.argv;

module.exports = (function () {
  if (argv.indexOf('--no-color') !== -1 ||
    argv.indexOf('--color=false') !== -1) {
    return false;
  }

  if (argv.indexOf('--color') !== -1 ||
    argv.indexOf('--color=true') !== -1 ||
    argv.indexOf('--color=always') !== -1) {
    return true;
  }

  if (process.stdout && !process.stdout.isTTY) {
    return false;
  }

  if (process.platform === 'win32') {
    return true;
  }

  if ('COLORTERM' in process.env) {
    return true;
  }

  if (process.env.TERM === 'dumb') {
    return false;
  }

  if (/^screen|^xterm|^vt100|color|ansi|cygwin|linux/i.test(process.env.TERM)) {
    return true;
  }

  return false;
})();
}).call(this,require('_process'))
},{"_process":215}],383:[function(require,module,exports){
/// <reference path="typings/tsd.d.ts" />
var request = require("request");
var remotefile = {};
var fs = require('fs');
remotefile.toVar = function (remoteFileUrl, options, cb) {
    var bodyString;
    request.get(remoteFileUrl, function (error, response, body) {
        if (!error && response.statusCode == 200) {
            bodyString = body;
            console.log('successfully requested' + remoteFileUrl);
            if (options != undefined) {
                //parse json if specified
                if (options.parseJson = true) {
                    var jsonObject = JSON.parse(bodyString);
                    return jsonObject;
                }
                ;
            }
            ;
        }
        else {
            console.log('could not get get remote file from ' + remoteFileUrl);
            return bodyString = 'could not get file';
        }
        ;
    });
    return bodyString;
};
remotefile.toFS = function (remoteFileUrl, storagePath, options, cb) {
    if (cb === void 0) { cb = undefined; }
    var stream = request(remoteFileUrl).pipe(fs.createWriteStream(storagePath));
    if (cb != undefined)
        stream.on('finish', cb);
};
module.exports = remotefile;

},{"fs":2,"request":384}],384:[function(require,module,exports){
// Copyright 2010-2012 Mikeal Rogers
//
//    Licensed under the Apache License, Version 2.0 (the "License");
//    you may not use this file except in compliance with the License.
//    You may obtain a copy of the License at
//
//        http://www.apache.org/licenses/LICENSE-2.0
//
//    Unless required by applicable law or agreed to in writing, software
//    distributed under the License is distributed on an "AS IS" BASIS,
//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//    See the License for the specific language governing permissions and
//    limitations under the License.

'use strict'

var extend                = require('extend')
  , cookies               = require('./lib/cookies')
  , helpers               = require('./lib/helpers')

var isFunction            = helpers.isFunction
  , paramsHaveRequestBody = helpers.paramsHaveRequestBody


// organize params for patch, post, put, head, del
function initParams(uri, options, callback) {
  if (typeof options === 'function') {
    callback = options
  }

  var params = {}
  if (typeof options === 'object') {
    extend(params, options, {uri: uri})
  } else if (typeof uri === 'string') {
    extend(params, {uri: uri})
  } else {
    extend(params, uri)
  }

  params.callback = callback
  return params
}

function request (uri, options, callback) {
  if (typeof uri === 'undefined') {
    throw new Error('undefined is not a valid uri or options object.')
  }

  var params = initParams(uri, options, callback)

  if (params.method === 'HEAD' && paramsHaveRequestBody(params)) {
    throw new Error('HTTP HEAD requests MUST NOT include a request body.')
  }

  return new request.Request(params)
}

function verbFunc (verb) {
  var method = verb === 'del' ? 'DELETE' : verb.toUpperCase()
  return function (uri, options, callback) {
    var params = initParams(uri, options, callback)
    params.method = method
    return request(params, params.callback)
  }
}

// define like this to please codeintel/intellisense IDEs
request.get = verbFunc('get')
request.head = verbFunc('head')
request.post = verbFunc('post')
request.put = verbFunc('put')
request.patch = verbFunc('patch')
request.del = verbFunc('del')

request.jar = function (store) {
  return cookies.jar(store)
}

request.cookie = function (str) {
  return cookies.parse(str)
}

function wrapRequestMethod (method, options, requester, verb) {

  return function (uri, opts, callback) {
    var params = initParams(uri, opts, callback)

    var target = {}
    extend(true, target, options, params)

    target.pool = params.pool || options.pool

    if (verb) {
      target.method = (verb === 'del' ? 'DELETE' : verb.toUpperCase())
    }

    if (isFunction(requester)) {
      method = requester
    }

    return method(target, target.callback)
  }
}

request.defaults = function (options, requester) {
  var self = this

  options = options || {}

  if (typeof options === 'function') {
    requester = options
    options = {}
  }

  var defaults      = wrapRequestMethod(self, options, requester)

  var verbs = ['get', 'head', 'post', 'put', 'patch', 'del']
  verbs.forEach(function(verb) {
    defaults[verb]  = wrapRequestMethod(self[verb], options, requester, verb)
  })

  defaults.cookie   = wrapRequestMethod(self.cookie, options, requester)
  defaults.jar      = self.jar
  defaults.defaults = self.defaults
  return defaults
}

request.forever = function (agentOptions, optionsArg) {
  var options = {}
  if (optionsArg) {
    extend(options, optionsArg)
  }
  if (agentOptions) {
    options.agentOptions = agentOptions
  }

  options.forever = true
  return request.defaults(options)
}

// Exports

module.exports = request
request.Request = require('./request')
request.initParams = initParams

// Backwards compatibility for request.debug
Object.defineProperty(request, 'debug', {
  enumerable : true,
  get : function() {
    return request.Request.debug
  },
  set : function(debug) {
    request.Request.debug = debug
  }
})

},{"./lib/cookies":386,"./lib/helpers":389,"./request":477,"extend":410}],385:[function(require,module,exports){
'use strict'

var caseless = require('caseless')
  , uuid = require('node-uuid')
  , helpers = require('./helpers')

var md5 = helpers.md5
  , toBase64 = helpers.toBase64


function Auth (request) {
  // define all public properties here
  this.request = request
  this.hasAuth = false
  this.sentAuth = false
  this.bearerToken = null
  this.user = null
  this.pass = null
}

Auth.prototype.basic = function (user, pass, sendImmediately) {
  var self = this
  if (typeof user !== 'string' || (pass !== undefined && typeof pass !== 'string')) {
    self.request.emit('error', new Error('auth() received invalid user or password'))
  }
  self.user = user
  self.pass = pass
  self.hasAuth = true
  var header = user + ':' + (pass || '')
  if (sendImmediately || typeof sendImmediately === 'undefined') {
    var authHeader = 'Basic ' + toBase64(header)
    self.sentAuth = true
    return authHeader
  }
}

Auth.prototype.bearer = function (bearer, sendImmediately) {
  var self = this
  self.bearerToken = bearer
  self.hasAuth = true
  if (sendImmediately || typeof sendImmediately === 'undefined') {
    if (typeof bearer === 'function') {
      bearer = bearer()
    }
    var authHeader = 'Bearer ' + (bearer || '')
    self.sentAuth = true
    return authHeader
  }
}

Auth.prototype.digest = function (method, path, authHeader) {
  // TODO: More complete implementation of RFC 2617.
  //   - handle challenge.domain
  //   - support qop="auth-int" only
  //   - handle Authentication-Info (not necessarily?)
  //   - check challenge.stale (not necessarily?)
  //   - increase nc (not necessarily?)
  // For reference:
  // http://tools.ietf.org/html/rfc2617#section-3
  // https://github.com/bagder/curl/blob/master/lib/http_digest.c

  var self = this

  var challenge = {}
  var re = /([a-z0-9_-]+)=(?:"([^"]+)"|([a-z0-9_-]+))/gi
  for (;;) {
    var match = re.exec(authHeader)
    if (!match) {
      break
    }
    challenge[match[1]] = match[2] || match[3]
  }

  /**
   * RFC 2617: handle both MD5 and MD5-sess algorithms.
   *
   * If the algorithm directive's value is "MD5" or unspecified, then HA1 is
   *   HA1=MD5(username:realm:password)
   * If the algorithm directive's value is "MD5-sess", then HA1 is
   *   HA1=MD5(MD5(username:realm:password):nonce:cnonce)
   */
  var ha1Compute = function (algorithm, user, realm, pass, nonce, cnonce) {
    var ha1 = md5(user + ':' + realm + ':' + pass)
    if (algorithm && algorithm.toLowerCase() === 'md5-sess') {
      return md5(ha1 + ':' + nonce + ':' + cnonce)
    } else {
      return ha1
    }
  }

  var qop = /(^|,)\s*auth\s*($|,)/.test(challenge.qop) && 'auth'
  var nc = qop && '00000001'
  var cnonce = qop && uuid().replace(/-/g, '')
  var ha1 = ha1Compute(challenge.algorithm, self.user, challenge.realm, self.pass, challenge.nonce, cnonce)
  var ha2 = md5(method + ':' + path)
  var digestResponse = qop
    ? md5(ha1 + ':' + challenge.nonce + ':' + nc + ':' + cnonce + ':' + qop + ':' + ha2)
    : md5(ha1 + ':' + challenge.nonce + ':' + ha2)
  var authValues = {
    username: self.user,
    realm: challenge.realm,
    nonce: challenge.nonce,
    uri: path,
    qop: qop,
    response: digestResponse,
    nc: nc,
    cnonce: cnonce,
    algorithm: challenge.algorithm,
    opaque: challenge.opaque
  }

  authHeader = []
  for (var k in authValues) {
    if (authValues[k]) {
      if (k === 'qop' || k === 'nc' || k === 'algorithm') {
        authHeader.push(k + '=' + authValues[k])
      } else {
        authHeader.push(k + '="' + authValues[k] + '"')
      }
    }
  }
  authHeader = 'Digest ' + authHeader.join(', ')
  self.sentAuth = true
  return authHeader
}

Auth.prototype.onRequest = function (user, pass, sendImmediately, bearer) {
  var self = this
    , request = self.request

  var authHeader
  if (bearer === undefined && user === undefined) {
    self.request.emit('error', new Error('no auth mechanism defined'))
  } else if (bearer !== undefined) {
    authHeader = self.bearer(bearer, sendImmediately)
  } else {
    authHeader = self.basic(user, pass, sendImmediately)
  }
  if (authHeader) {
    request.setHeader('authorization', authHeader)
  }
}

Auth.prototype.onResponse = function (response) {
  var self = this
    , request = self.request

  if (!self.hasAuth || self.sentAuth) { return null }

  var c = caseless(response.headers)

  var authHeader = c.get('www-authenticate')
  var authVerb = authHeader && authHeader.split(' ')[0].toLowerCase()
  request.debug('reauth', authVerb)

  switch (authVerb) {
    case 'basic':
      return self.basic(self.user, self.pass, true)

    case 'bearer':
      return self.bearer(self.bearerToken, true)

    case 'digest':
      return self.digest(request.method, request.path, authHeader)
  }
}

exports.Auth = Auth

},{"./helpers":389,"caseless":407,"node-uuid":462}],386:[function(require,module,exports){
'use strict'

var tough = require('tough-cookie')

var Cookie = tough.Cookie
  , CookieJar = tough.CookieJar


exports.parse = function(str) {
  if (str && str.uri) {
    str = str.uri
  }
  if (typeof str !== 'string') {
    throw new Error('The cookie function only accepts STRING as param')
  }
  return Cookie.parse(str, {loose: true})
}

// Adapt the sometimes-Async api of tough.CookieJar to our requirements
function RequestJar(store) {
  var self = this
  self._jar = new CookieJar(store, {looseMode: true})
}
RequestJar.prototype.setCookie = function(cookieOrStr, uri, options) {
  var self = this
  return self._jar.setCookieSync(cookieOrStr, uri, options || {})
}
RequestJar.prototype.getCookieString = function(uri) {
  var self = this
  return self._jar.getCookieStringSync(uri)
}
RequestJar.prototype.getCookies = function(uri) {
  var self = this
  return self._jar.getCookiesSync(uri)
}

exports.jar = function(store) {
  return new RequestJar(store)
}

},{"tough-cookie":469}],387:[function(require,module,exports){
(function (process){
'use strict'

function formatHostname(hostname) {
  // canonicalize the hostname, so that 'oogle.com' won't match 'google.com'
  return hostname.replace(/^\.*/, '.').toLowerCase()
}

function parseNoProxyZone(zone) {
  zone = zone.trim().toLowerCase()

  var zoneParts = zone.split(':', 2)
    , zoneHost = formatHostname(zoneParts[0])
    , zonePort = zoneParts[1]
    , hasPort = zone.indexOf(':') > -1

  return {hostname: zoneHost, port: zonePort, hasPort: hasPort}
}

function uriInNoProxy(uri, noProxy) {
  var port = uri.port || (uri.protocol === 'https:' ? '443' : '80')
    , hostname = formatHostname(uri.hostname)
    , noProxyList = noProxy.split(',')

  // iterate through the noProxyList until it finds a match.
  return noProxyList.map(parseNoProxyZone).some(function(noProxyZone) {
    var isMatchedAt = hostname.indexOf(noProxyZone.hostname)
      , hostnameMatched = (
          isMatchedAt > -1 &&
          (isMatchedAt === hostname.length - noProxyZone.hostname.length)
        )

    if (noProxyZone.hasPort) {
      return (port === noProxyZone.port) && hostnameMatched
    }

    return hostnameMatched
  })
}

function getProxyFromURI(uri) {
  // Decide the proper request proxy to use based on the request URI object and the
  // environmental variables (NO_PROXY, HTTP_PROXY, etc.)
  // respect NO_PROXY environment variables (see: http://lynx.isc.org/current/breakout/lynx_help/keystrokes/environments.html)

  var noProxy = process.env.NO_PROXY || process.env.no_proxy || ''

  // if the noProxy is a wildcard then return null

  if (noProxy === '*') {
    return null
  }

  // if the noProxy is not empty and the uri is found return null

  if (noProxy !== '' && uriInNoProxy(uri, noProxy)) {
    return null
  }

  // Check for HTTP or HTTPS Proxy in environment Else default to null

  if (uri.protocol === 'http:') {
    return process.env.HTTP_PROXY ||
           process.env.http_proxy || null
  }

  if (uri.protocol === 'https:') {
    return process.env.HTTPS_PROXY ||
           process.env.https_proxy ||
           process.env.HTTP_PROXY  ||
           process.env.http_proxy  || null
  }

  // if none of that works, return null
  // (What uri protocol are you using then?)

  return null
}

module.exports = getProxyFromURI

}).call(this,require('_process'))
},{"_process":215}],388:[function(require,module,exports){
'use strict'

var fs = require('fs')
var qs = require('querystring')
var validate = require('har-validator')
var util = require('util')

function Har (request) {
  this.request = request
}

Har.prototype.reducer = function (obj, pair) {
  // new property ?
  if (obj[pair.name] === undefined) {
    obj[pair.name] = pair.value
    return obj
  }

  // existing? convert to array
  var arr = [
    obj[pair.name],
    pair.value
  ]

  obj[pair.name] = arr

  return obj
}

Har.prototype.prep = function (data) {
  // construct utility properties
  data.queryObj = {}
  data.headersObj = {}
  data.postData.jsonObj = false
  data.postData.paramsObj = false

  // construct query objects
  if (data.queryString && data.queryString.length) {
    data.queryObj = data.queryString.reduce(this.reducer, {})
  }

  // construct headers objects
  if (data.headers && data.headers.length) {
    // loweCase header keys
    data.headersObj = data.headers.reduceRight(function (headers, header) {
      headers[header.name] = header.value
      return headers
    }, {})
  }

  // construct Cookie header
  if (data.cookies && data.cookies.length) {
    var cookies = data.cookies.map(function (cookie) {
      return cookie.name + '=' + cookie.value
    })

    if (cookies.length) {
      data.headersObj.cookie = cookies.join('; ')
    }
  }

  // prep body
  switch (data.postData.mimeType) {
    case 'multipart/mixed':
    case 'multipart/related':
    case 'multipart/form-data':
    case 'multipart/alternative':
      // reset values
      data.postData.mimeType = 'multipart/form-data'
      break

    case 'application/x-www-form-urlencoded':
      if (!data.postData.params) {
        data.postData.text = ''
      } else {
        data.postData.paramsObj = data.postData.params.reduce(this.reducer, {})

        // always overwrite
        data.postData.text = qs.stringify(data.postData.paramsObj)
      }
      break

    case 'text/json':
    case 'text/x-json':
    case 'application/json':
    case 'application/x-json':
      data.postData.mimeType = 'application/json'

      if (data.postData.text) {
        try {
          data.postData.jsonObj = JSON.parse(data.postData.text)
        } catch (e) {
          this.request.debug(e)

          // force back to text/plain
          data.postData.mimeType = 'text/plain'
        }
      }
      break
  }

  return data
}

Har.prototype.options = function (options) {
  // skip if no har property defined
  if (!options.har) {
    return options
  }

  var har = util._extend({}, options.har)

  // only process the first entry
  if (har.log && har.log.entries) {
    har = har.log.entries[0]
  }

  // add optional properties to make validation successful
  har.url = har.url || options.url || options.uri || options.baseUrl || '/'
  har.httpVersion = har.httpVersion || 'HTTP/1.1'
  har.queryString = har.queryString || []
  har.headers = har.headers || []
  har.cookies = har.cookies || []
  har.postData = har.postData || {}
  har.postData.mimeType = har.postData.mimeType || 'application/octet-stream'

  har.bodySize = 0
  har.headersSize = 0
  har.postData.size = 0

  if (!validate.request(har)) {
    return options
  }

  // clean up and get some utility properties
  var req = this.prep(har)

  // construct new options
  if (req.url) {
    options.url = req.url
  }

  if (req.method) {
    options.method = req.method
  }

  if (Object.keys(req.queryObj).length) {
    options.qs = req.queryObj
  }

  if (Object.keys(req.headersObj).length) {
    options.headers = req.headersObj
  }

  switch (req.postData.mimeType) {
    case 'application/x-www-form-urlencoded':
      options.form = req.postData.paramsObj
      break

    case 'application/json':
      if (req.postData.jsonObj) {
        options.body = req.postData.jsonObj
        options.json = true
      }
      break

    case 'multipart/form-data':
      options.formData = {}

      req.postData.params.forEach(function (param) {
        var attachment = {}

        if (!param.fileName && !param.fileName && !param.contentType) {
          options.formData[param.name] = param.value
          return
        }

        // attempt to read from disk!
        if (param.fileName && !param.value) {
          attachment.value = fs.createReadStream(param.fileName)
        } else if (param.value) {
          attachment.value = param.value
        }

        if (param.fileName) {
          attachment.options = {
            filename: param.fileName,
            contentType: param.contentType ? param.contentType : null
          }
        }

        options.formData[param.name] = attachment
      })
      break

    default:
      if (req.postData.text) {
        options.body = req.postData.text
      }
  }

  return options
}

exports.Har = Har

},{"fs":2,"har-validator":414,"querystring":219,"util":247}],389:[function(require,module,exports){
(function (process,Buffer){
'use strict'

var jsonSafeStringify = require('json-stringify-safe')
  , crypto = require('crypto')

function deferMethod() {
  if (typeof setImmediate === 'undefined') {
    return process.nextTick
  }

  return setImmediate
}

function isFunction(value) {
  return typeof value === 'function'
}

function paramsHaveRequestBody(params) {
  return (
    params.body ||
    params.requestBodyStream ||
    (params.json && typeof params.json !== 'boolean') ||
    params.multipart
  )
}

function safeStringify (obj) {
  var ret
  try {
    ret = JSON.stringify(obj)
  } catch (e) {
    ret = jsonSafeStringify(obj)
  }
  return ret
}

function md5 (str) {
  return crypto.createHash('md5').update(str).digest('hex')
}

function isReadStream (rs) {
  return rs.readable && rs.path && rs.mode
}

function toBase64 (str) {
  return (new Buffer(str || '', 'utf8')).toString('base64')
}

function copy (obj) {
  var o = {}
  Object.keys(obj).forEach(function (i) {
    o[i] = obj[i]
  })
  return o
}

function version () {
  var numbers = process.version.replace('v', '').split('.')
  return {
    major: parseInt(numbers[0], 10),
    minor: parseInt(numbers[1], 10),
    patch: parseInt(numbers[2], 10)
  }
}

exports.isFunction            = isFunction
exports.paramsHaveRequestBody = paramsHaveRequestBody
exports.safeStringify         = safeStringify
exports.md5                   = md5
exports.isReadStream          = isReadStream
exports.toBase64              = toBase64
exports.copy                  = copy
exports.version               = version
exports.defer                 = deferMethod()

}).call(this,require('_process'),require("buffer").Buffer)
},{"_process":215,"buffer":18,"crypto":22,"json-stringify-safe":458}],390:[function(require,module,exports){
(function (Buffer){
'use strict'

var uuid = require('node-uuid')
  , CombinedStream = require('combined-stream')
  , isstream = require('isstream')


function Multipart (request) {
  this.request = request
  this.boundary = uuid()
  this.chunked = false
  this.body = null
}

Multipart.prototype.isChunked = function (options) {
  var self = this
    , chunked = false
    , parts = options.data || options

  if (!parts.forEach) {
    self.request.emit('error', new Error('Argument error, options.multipart.'))
  }

  if (options.chunked !== undefined) {
    chunked = options.chunked
  }

  if (self.request.getHeader('transfer-encoding') === 'chunked') {
    chunked = true
  }

  if (!chunked) {
    parts.forEach(function (part) {
      if (typeof part.body === 'undefined') {
        self.request.emit('error', new Error('Body attribute missing in multipart.'))
      }
      if (isstream(part.body)) {
        chunked = true
      }
    })
  }

  return chunked
}

Multipart.prototype.setHeaders = function (chunked) {
  var self = this

  if (chunked && !self.request.hasHeader('transfer-encoding')) {
    self.request.setHeader('transfer-encoding', 'chunked')
  }

  var header = self.request.getHeader('content-type')

  if (!header || header.indexOf('multipart') === -1) {
    self.request.setHeader('content-type', 'multipart/related; boundary=' + self.boundary)
  } else {
    if (header.indexOf('boundary') !== -1) {
      self.boundary = header.replace(/.*boundary=([^\s;]+).*/, '$1')
    } else {
      self.request.setHeader('content-type', header + '; boundary=' + self.boundary)
    }
  }
}

Multipart.prototype.build = function (parts, chunked) {
  var self = this
  var body = chunked ? new CombinedStream() : []

  function add (part) {
    return chunked ? body.append(part) : body.push(new Buffer(part))
  }

  if (self.request.preambleCRLF) {
    add('\r\n')
  }

  parts.forEach(function (part) {
    var preamble = '--' + self.boundary + '\r\n'
    Object.keys(part).forEach(function (key) {
      if (key === 'body') { return }
      preamble += key + ': ' + part[key] + '\r\n'
    })
    preamble += '\r\n'
    add(preamble)
    add(part.body)
    add('\r\n')
  })
  add('--' + self.boundary + '--')

  if (self.request.postambleCRLF) {
    add('\r\n')
  }

  return body
}

Multipart.prototype.onRequest = function (options) {
  var self = this

  var chunked = self.isChunked(options)
    , parts = options.data || options

  self.setHeaders(chunked)
  self.chunked = chunked
  self.body = self.build(parts, chunked)
}

exports.Multipart = Multipart

}).call(this,require("buffer").Buffer)
},{"buffer":18,"combined-stream":408,"isstream":457,"node-uuid":462}],391:[function(require,module,exports){
(function (Buffer){
'use strict'

var url = require('url')
  , qs = require('qs')
  , caseless = require('caseless')
  , uuid = require('node-uuid')
  , oauth = require('oauth-sign')
  , crypto = require('crypto')


function OAuth (request) {
  this.request = request
  this.params = null
}

OAuth.prototype.buildParams = function (_oauth, uri, method, query, form, qsLib) {
  var oa = {}
  for (var i in _oauth) {
    oa['oauth_' + i] = _oauth[i]
  }
  if (!oa.oauth_version) {
    oa.oauth_version = '1.0'
  }
  if (!oa.oauth_timestamp) {
    oa.oauth_timestamp = Math.floor( Date.now() / 1000 ).toString()
  }
  if (!oa.oauth_nonce) {
    oa.oauth_nonce = uuid().replace(/-/g, '')
  }
  if (!oa.oauth_signature_method) {
    oa.oauth_signature_method = 'HMAC-SHA1'
  }

  var consumer_secret_or_private_key = oa.oauth_consumer_secret || oa.oauth_private_key
  delete oa.oauth_consumer_secret
  delete oa.oauth_private_key

  var token_secret = oa.oauth_token_secret
  delete oa.oauth_token_secret

  var realm = oa.oauth_realm
  delete oa.oauth_realm
  delete oa.oauth_transport_method

  var baseurl = uri.protocol + '//' + uri.host + uri.pathname
  var params = qsLib.parse([].concat(query, form, qsLib.stringify(oa)).join('&'))

  oa.oauth_signature = oauth.sign(
    oa.oauth_signature_method,
    method,
    baseurl,
    params,
    consumer_secret_or_private_key,
    token_secret)

  if (realm) {
    oa.realm = realm
  }

  return oa
}

OAuth.prototype.buildBodyHash = function(_oauth, body) {
  if (['HMAC-SHA1', 'RSA-SHA1'].indexOf(_oauth.signature_method || 'HMAC-SHA1') < 0) {
    this.request.emit('error', new Error('oauth: ' + _oauth.signature_method +
      ' signature_method not supported with body_hash signing.'))
  }

  var shasum = crypto.createHash('sha1')
  shasum.update(body || '')
  var sha1 = shasum.digest('hex')

  return new Buffer(sha1).toString('base64')
}

OAuth.prototype.concatParams = function (oa, sep, wrap) {
  wrap = wrap || ''

  var params = Object.keys(oa).filter(function (i) {
    return i !== 'realm' && i !== 'oauth_signature'
  }).sort()

  if (oa.realm) {
    params.splice(0, 0, 'realm')
  }
  params.push('oauth_signature')

  return params.map(function (i) {
    return i + '=' + wrap + oauth.rfc3986(oa[i]) + wrap
  }).join(sep)
}

OAuth.prototype.onRequest = function (_oauth) {
  var self = this
  self.params = _oauth

  var uri = self.request.uri || {}
    , method = self.request.method || ''
    , headers = caseless(self.request.headers)
    , body = self.request.body || ''
    , qsLib = self.request.qsLib || qs

  var form
    , query
    , contentType = headers.get('content-type') || ''
    , formContentType = 'application/x-www-form-urlencoded'
    , transport = _oauth.transport_method || 'header'

  if (contentType.slice(0, formContentType.length) === formContentType) {
    contentType = formContentType
    form = body
  }
  if (uri.query) {
    query = uri.query
  }
  if (transport === 'body' && (method !== 'POST' || contentType !== formContentType)) {
    self.request.emit('error', new Error('oauth: transport_method of body requires POST ' +
      'and content-type ' + formContentType))
  }

  if (!form && typeof _oauth.body_hash === 'boolean') {
    _oauth.body_hash = self.buildBodyHash(_oauth, self.request.body.toString())
  }

  var oa = self.buildParams(_oauth, uri, method, query, form, qsLib)

  switch (transport) {
    case 'header':
      self.request.setHeader('Authorization', 'OAuth ' + self.concatParams(oa, ',', '"'))
      break

    case 'query':
      var href = self.request.uri.href += (query ? '&' : '?') + self.concatParams(oa, '&')
      self.request.uri = url.parse(href)
      self.request.path = self.request.uri.path
      break

    case 'body':
      self.request.body = (form ? form + '&' : '') + self.concatParams(oa, '&')
      break

    default:
      self.request.emit('error', new Error('oauth: transport_method invalid'))
  }
}

exports.OAuth = OAuth

}).call(this,require("buffer").Buffer)
},{"buffer":18,"caseless":407,"crypto":22,"node-uuid":462,"oauth-sign":463,"qs":464,"url":245}],392:[function(require,module,exports){
'use strict'

var qs = require('qs')
  , querystring = require('querystring')


function Querystring (request) {
  this.request = request
  this.lib = null
  this.useQuerystring = null
  this.parseOptions = null
  this.stringifyOptions = null
}

Querystring.prototype.init = function (options) {
  if (this.lib) {return}

  this.useQuerystring = options.useQuerystring
  this.lib = (this.useQuerystring ? querystring : qs)

  this.parseOptions = options.qsParseOptions || {}
  this.stringifyOptions = options.qsStringifyOptions || {}
}

Querystring.prototype.stringify = function (obj) {
  return (this.useQuerystring)
    ? this.rfc3986(this.lib.stringify(obj,
      this.stringifyOptions.sep || null,
      this.stringifyOptions.eq || null,
      this.stringifyOptions))
    : this.lib.stringify(obj, this.stringifyOptions)
}

Querystring.prototype.parse = function (str) {
  return (this.useQuerystring)
    ? this.lib.parse(str,
      this.parseOptions.sep || null,
      this.parseOptions.eq || null,
      this.parseOptions)
    : this.lib.parse(str, this.parseOptions)
}

Querystring.prototype.rfc3986 = function (str) {
  return str.replace(/[!'()*]/g, function (c) {
    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
  })
}

Querystring.prototype.unescape = querystring.unescape

exports.Querystring = Querystring

},{"qs":464,"querystring":219}],393:[function(require,module,exports){
'use strict'

var url = require('url')
var isUrl = /^https?:/

function Redirect (request) {
  this.request = request
  this.followRedirect = true
  this.followRedirects = true
  this.followAllRedirects = false
  this.allowRedirect = function () {return true}
  this.maxRedirects = 10
  this.redirects = []
  this.redirectsFollowed = 0
  this.removeRefererHeader = false
}

Redirect.prototype.onRequest = function (options) {
  var self = this

  if (options.maxRedirects !== undefined) {
    self.maxRedirects = options.maxRedirects
  }
  if (typeof options.followRedirect === 'function') {
    self.allowRedirect = options.followRedirect
  }
  if (options.followRedirect !== undefined) {
    self.followRedirects = !!options.followRedirect
  }
  if (options.followAllRedirects !== undefined) {
    self.followAllRedirects = options.followAllRedirects
  }
  if (self.followRedirects || self.followAllRedirects) {
    self.redirects = self.redirects || []
  }
  if (options.removeRefererHeader !== undefined) {
    self.removeRefererHeader = options.removeRefererHeader
  }
}

Redirect.prototype.redirectTo = function (response) {
  var self = this
    , request = self.request

  var redirectTo = null
  if (response.statusCode >= 300 && response.statusCode < 400 && response.caseless.has('location')) {
    var location = response.caseless.get('location')
    request.debug('redirect', location)

    if (self.followAllRedirects) {
      redirectTo = location
    } else if (self.followRedirects) {
      switch (request.method) {
        case 'PATCH':
        case 'PUT':
        case 'POST':
        case 'DELETE':
          // Do not follow redirects
          break
        default:
          redirectTo = location
          break
      }
    }
  } else if (response.statusCode === 401) {
    var authHeader = request._auth.onResponse(response)
    if (authHeader) {
      request.setHeader('authorization', authHeader)
      redirectTo = request.uri
    }
  }
  return redirectTo
}

Redirect.prototype.onResponse = function (response) {
  var self = this
    , request = self.request

  var redirectTo = self.redirectTo(response)
  if (!redirectTo || !self.allowRedirect.call(request, response)) {
    return false
  }

  request.debug('redirect to', redirectTo)

  // ignore any potential response body.  it cannot possibly be useful
  // to us at this point.
  // response.resume should be defined, but check anyway before calling. Workaround for browserify.
  if (response.resume) {
    response.resume()
  }

  if (self.redirectsFollowed >= self.maxRedirects) {
    request.emit('error', new Error('Exceeded maxRedirects. Probably stuck in a redirect loop ' + request.uri.href))
    return false
  }
  self.redirectsFollowed += 1

  if (!isUrl.test(redirectTo)) {
    redirectTo = url.resolve(request.uri.href, redirectTo)
  }

  var uriPrev = request.uri
  request.uri = url.parse(redirectTo)

  // handle the case where we change protocol from https to http or vice versa
  if (request.uri.protocol !== uriPrev.protocol) {
    request._updateProtocol()
  }

  self.redirects.push(
    { statusCode : response.statusCode
    , redirectUri: redirectTo
    }
  )
  if (self.followAllRedirects && request.method !== 'HEAD'
    && response.statusCode !== 401 && response.statusCode !== 307) {
    request.method = 'GET'
  }
  // request.method = 'GET' // Force all redirects to use GET || commented out fixes #215
  delete request.src
  delete request.req
  delete request.agent
  delete request._started
  if (response.statusCode !== 401 && response.statusCode !== 307) {
    // Remove parameters from the previous response, unless this is the second request
    // for a server that requires digest authentication.
    delete request.body
    delete request._form
    if (request.headers) {
      request.removeHeader('host')
      request.removeHeader('content-type')
      request.removeHeader('content-length')
      if (request.uri.hostname !== request.originalHost.split(':')[0]) {
        // Remove authorization if changing hostnames (but not if just
        // changing ports or protocols).  This matches the behavior of curl:
        // https://github.com/bagder/curl/blob/6beb0eee/lib/http.c#L710
        request.removeHeader('authorization')
      }
    }
  }

  if (!self.removeRefererHeader) {
    request.setHeader('referer', request.uri.href)
  }

  request.emit('redirect')

  request.init()

  return true
}

exports.Redirect = Redirect

},{"url":245}],394:[function(require,module,exports){
'use strict'

var url = require('url')
  , tunnel = require('tunnel-agent')

var defaultProxyHeaderWhiteList = [
  'accept',
  'accept-charset',
  'accept-encoding',
  'accept-language',
  'accept-ranges',
  'cache-control',
  'content-encoding',
  'content-language',
  'content-length',
  'content-location',
  'content-md5',
  'content-range',
  'content-type',
  'connection',
  'date',
  'expect',
  'max-forwards',
  'pragma',
  'referer',
  'te',
  'transfer-encoding',
  'user-agent',
  'via'
]

var defaultProxyHeaderExclusiveList = [
  'proxy-authorization'
]

function constructProxyHost(uriObject) {
  var port = uriObject.portA
    , protocol = uriObject.protocol
    , proxyHost = uriObject.hostname + ':'

  if (port) {
    proxyHost += port
  } else if (protocol === 'https:') {
    proxyHost += '443'
  } else {
    proxyHost += '80'
  }

  return proxyHost
}

function constructProxyHeaderWhiteList(headers, proxyHeaderWhiteList) {
  var whiteList = proxyHeaderWhiteList
    .reduce(function (set, header) {
      set[header.toLowerCase()] = true
      return set
    }, {})

  return Object.keys(headers)
    .filter(function (header) {
      return whiteList[header.toLowerCase()]
    })
    .reduce(function (set, header) {
      set[header] = headers[header]
      return set
    }, {})
}

function constructTunnelOptions (request, proxyHeaders) {
  var proxy = request.proxy

  var tunnelOptions = {
    proxy : {
      host      : proxy.hostname,
      port      : +proxy.port,
      proxyAuth : proxy.auth,
      headers   : proxyHeaders
    },
    headers            : request.headers,
    ca                 : request.ca,
    cert               : request.cert,
    key                : request.key,
    passphrase         : request.passphrase,
    pfx                : request.pfx,
    ciphers            : request.ciphers,
    rejectUnauthorized : request.rejectUnauthorized,
    secureOptions      : request.secureOptions,
    secureProtocol     : request.secureProtocol
  }

  return tunnelOptions
}

function constructTunnelFnName(uri, proxy) {
  var uriProtocol = (uri.protocol === 'https:' ? 'https' : 'http')
  var proxyProtocol = (proxy.protocol === 'https:' ? 'Https' : 'Http')
  return [uriProtocol, proxyProtocol].join('Over')
}

function getTunnelFn(request) {
  var uri = request.uri
  var proxy = request.proxy
  var tunnelFnName = constructTunnelFnName(uri, proxy)
  return tunnel[tunnelFnName]
}


function Tunnel (request) {
  this.request = request
  this.proxyHeaderWhiteList = defaultProxyHeaderWhiteList
  this.proxyHeaderExclusiveList = []
}

Tunnel.prototype.isEnabled = function (options) {
  var request = this.request
  // Tunnel HTTPS by default, or if a previous request in the redirect chain
  // was tunneled.  Allow the user to override this setting.

  // If self.tunnel is already set (because this is a redirect), use the
  // existing value.
  if (typeof request.tunnel !== 'undefined') {
    return request.tunnel
  }

  // If options.tunnel is set (the user specified a value), use it.
  if (typeof options.tunnel !== 'undefined') {
    return options.tunnel
  }

  // If the destination is HTTPS, tunnel.
  if (request.uri.protocol === 'https:') {
    return true
  }

  // Otherwise, leave tunnel unset, because if a later request in the redirect
  // chain is HTTPS then that request (and any subsequent ones) should be
  // tunneled.
  return undefined
}

Tunnel.prototype.setup = function (options) {
  var self = this
    , request = self.request

  options = options || {}

  if (typeof request.proxy === 'string') {
    request.proxy = url.parse(request.proxy)
  }

  if (!request.proxy || !request.tunnel) {
    return false
  }

  // Setup Proxy Header Exclusive List and White List
  if (options.proxyHeaderWhiteList) {
    self.proxyHeaderWhiteList = options.proxyHeaderWhiteList
  }
  if (options.proxyHeaderExclusiveList) {
    self.proxyHeaderExclusiveList = options.proxyHeaderExclusiveList
  }

  var proxyHeaderExclusiveList = self.proxyHeaderExclusiveList.concat(defaultProxyHeaderExclusiveList)
  var proxyHeaderWhiteList = self.proxyHeaderWhiteList.concat(proxyHeaderExclusiveList)

  // Setup Proxy Headers and Proxy Headers Host
  // Only send the Proxy White Listed Header names
  var proxyHeaders = constructProxyHeaderWhiteList(request.headers, proxyHeaderWhiteList)
  proxyHeaders.host = constructProxyHost(request.uri)

  proxyHeaderExclusiveList.forEach(request.removeHeader, request)

  // Set Agent from Tunnel Data
  var tunnelFn = getTunnelFn(request)
  var tunnelOptions = constructTunnelOptions(request, proxyHeaders)
  request.agent = tunnelFn(tunnelOptions)

  return true
}

Tunnel.defaultProxyHeaderWhiteList = defaultProxyHeaderWhiteList
Tunnel.defaultProxyHeaderExclusiveList = defaultProxyHeaderExclusiveList
exports.Tunnel = Tunnel

},{"tunnel-agent":476,"url":245}],395:[function(require,module,exports){

/*!
 *  Copyright 2010 LearnBoost <dev@learnboost.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Module dependencies.
 */

var crypto = require('crypto')
  , parse = require('url').parse
  ;

/**
 * Valid keys.
 */

var keys = 
  [ 'acl'
  , 'location'
  , 'logging'
  , 'notification'
  , 'partNumber'
  , 'policy'
  , 'requestPayment'
  , 'torrent'
  , 'uploadId'
  , 'uploads'
  , 'versionId'
  , 'versioning'
  , 'versions'
  , 'website'
  ]

/**
 * Return an "Authorization" header value with the given `options`
 * in the form of "AWS <key>:<signature>"
 *
 * @param {Object} options
 * @return {String}
 * @api private
 */

function authorization (options) {
  return 'AWS ' + options.key + ':' + sign(options)
}

module.exports = authorization
module.exports.authorization = authorization

/**
 * Simple HMAC-SHA1 Wrapper
 *
 * @param {Object} options
 * @return {String}
 * @api private
 */ 

function hmacSha1 (options) {
  return crypto.createHmac('sha1', options.secret).update(options.message).digest('base64')
}

module.exports.hmacSha1 = hmacSha1

/**
 * Create a base64 sha1 HMAC for `options`. 
 * 
 * @param {Object} options
 * @return {String}
 * @api private
 */

function sign (options) {
  options.message = stringToSign(options)
  return hmacSha1(options)
}
module.exports.sign = sign

/**
 * Create a base64 sha1 HMAC for `options`. 
 *
 * Specifically to be used with S3 presigned URLs
 * 
 * @param {Object} options
 * @return {String}
 * @api private
 */

function signQuery (options) {
  options.message = queryStringToSign(options)
  return hmacSha1(options)
}
module.exports.signQuery= signQuery

/**
 * Return a string for sign() with the given `options`.
 *
 * Spec:
 * 
 *    <verb>\n
 *    <md5>\n
 *    <content-type>\n
 *    <date>\n
 *    [headers\n]
 *    <resource>
 *
 * @param {Object} options
 * @return {String}
 * @api private
 */

function stringToSign (options) {
  var headers = options.amazonHeaders || ''
  if (headers) headers += '\n'
  var r = 
    [ options.verb
    , options.md5
    , options.contentType
    , options.date ? options.date.toUTCString() : ''
    , headers + options.resource
    ]
  return r.join('\n')
}
module.exports.queryStringToSign = stringToSign

/**
 * Return a string for sign() with the given `options`, but is meant exclusively
 * for S3 presigned URLs
 *
 * Spec:
 * 
 *    <date>\n
 *    <resource>
 *
 * @param {Object} options
 * @return {String}
 * @api private
 */

function queryStringToSign (options){
  return 'GET\n\n\n' + options.date + '\n' + options.resource
}
module.exports.queryStringToSign = queryStringToSign

/**
 * Perform the following:
 *
 *  - ignore non-amazon headers
 *  - lowercase fields
 *  - sort lexicographically
 *  - trim whitespace between ":"
 *  - join with newline
 *
 * @param {Object} headers
 * @return {String}
 * @api private
 */

function canonicalizeHeaders (headers) {
  var buf = []
    , fields = Object.keys(headers)
    ;
  for (var i = 0, len = fields.length; i < len; ++i) {
    var field = fields[i]
      , val = headers[field]
      , field = field.toLowerCase()
      ;
    if (0 !== field.indexOf('x-amz')) continue
    buf.push(field + ':' + val)
  }
  return buf.sort().join('\n')
}
module.exports.canonicalizeHeaders = canonicalizeHeaders

/**
 * Perform the following:
 *
 *  - ignore non sub-resources
 *  - sort lexicographically
 *
 * @param {String} resource
 * @return {String}
 * @api private
 */

function canonicalizeResource (resource) {
  var url = parse(resource, true)
    , path = url.pathname
    , buf = []
    ;

  Object.keys(url.query).forEach(function(key){
    if (!~keys.indexOf(key)) return
    var val = '' == url.query[key] ? '' : '=' + encodeURIComponent(url.query[key])
    buf.push(key + val)
  })

  return path + (buf.length ? '?' + buf.sort().join('&') : '')
}
module.exports.canonicalizeResource = canonicalizeResource

},{"crypto":22,"url":245}],396:[function(require,module,exports){
(function (Buffer){
var DuplexStream = require('readable-stream/duplex')
  , util         = require('util')

function BufferList (callback) {
  if (!(this instanceof BufferList))
    return new BufferList(callback)

  this._bufs  = []
  this.length = 0

  if (typeof callback == 'function') {
    this._callback = callback

    var piper = function (err) {
      if (this._callback) {
        this._callback(err)
        this._callback = null
      }
    }.bind(this)

    this.on('pipe', function (src) {
      src.on('error', piper)
    })
    this.on('unpipe', function (src) {
      src.removeListener('error', piper)
    })
  }
  else if (Buffer.isBuffer(callback))
    this.append(callback)
  else if (Array.isArray(callback)) {
    callback.forEach(function (b) {
      Buffer.isBuffer(b) && this.append(b)
    }.bind(this))
  }

  DuplexStream.call(this)
}

util.inherits(BufferList, DuplexStream)

BufferList.prototype._offset = function (offset) {
  var tot = 0, i = 0, _t
  for (; i < this._bufs.length; i++) {
    _t = tot + this._bufs[i].length
    if (offset < _t)
      return [ i, offset - tot ]
    tot = _t
  }
}

BufferList.prototype.append = function (buf) {
  var isBuffer = Buffer.isBuffer(buf) ||
                 buf instanceof BufferList

  this._bufs.push(isBuffer ? buf : new Buffer(buf))
  this.length += buf.length
  return this
}

BufferList.prototype._write = function (buf, encoding, callback) {
  this.append(buf)
  if (callback)
    callback()
}

BufferList.prototype._read = function (size) {
  if (!this.length)
    return this.push(null)
  size = Math.min(size, this.length)
  this.push(this.slice(0, size))
  this.consume(size)
}

BufferList.prototype.end = function (chunk) {
  DuplexStream.prototype.end.call(this, chunk)

  if (this._callback) {
    this._callback(null, this.slice())
    this._callback = null
  }
}

BufferList.prototype.get = function (index) {
  return this.slice(index, index + 1)[0]
}

BufferList.prototype.slice = function (start, end) {
  return this.copy(null, 0, start, end)
}

BufferList.prototype.copy = function (dst, dstStart, srcStart, srcEnd) {
  if (typeof srcStart != 'number' || srcStart < 0)
    srcStart = 0
  if (typeof srcEnd != 'number' || srcEnd > this.length)
    srcEnd = this.length
  if (srcStart >= this.length)
    return dst || new Buffer(0)
  if (srcEnd <= 0)
    return dst || new Buffer(0)

  var copy   = !!dst
    , off    = this._offset(srcStart)
    , len    = srcEnd - srcStart
    , bytes  = len
    , bufoff = (copy && dstStart) || 0
    , start  = off[1]
    , l
    , i

  // copy/slice everything
  if (srcStart === 0 && srcEnd == this.length) {
    if (!copy) // slice, just return a full concat
      return Buffer.concat(this._bufs)

    // copy, need to copy individual buffers
    for (i = 0; i < this._bufs.length; i++) {
      this._bufs[i].copy(dst, bufoff)
      bufoff += this._bufs[i].length
    }

    return dst
  }

  // easy, cheap case where it's a subset of one of the buffers
  if (bytes <= this._bufs[off[0]].length - start) {
    return copy
      ? this._bufs[off[0]].copy(dst, dstStart, start, start + bytes)
      : this._bufs[off[0]].slice(start, start + bytes)
  }

  if (!copy) // a slice, we need something to copy in to
    dst = new Buffer(len)

  for (i = off[0]; i < this._bufs.length; i++) {
    l = this._bufs[i].length - start

    if (bytes > l) {
      this._bufs[i].copy(dst, bufoff, start)
    } else {
      this._bufs[i].copy(dst, bufoff, start, start + bytes)
      break
    }

    bufoff += l
    bytes -= l

    if (start)
      start = 0
  }

  return dst
}

BufferList.prototype.toString = function (encoding, start, end) {
  return this.slice(start, end).toString(encoding)
}

BufferList.prototype.consume = function (bytes) {
  while (this._bufs.length) {
    if (bytes > this._bufs[0].length) {
      bytes -= this._bufs[0].length
      this.length -= this._bufs[0].length
      this._bufs.shift()
    } else {
      this._bufs[0] = this._bufs[0].slice(bytes)
      this.length -= bytes
      break
    }
  }
  return this
}

BufferList.prototype.duplicate = function () {
  var i = 0
    , copy = new BufferList()

  for (; i < this._bufs.length; i++)
    copy.append(this._bufs[i])

  return copy
}

BufferList.prototype.destroy = function () {
  this._bufs.length = 0;
  this.length = 0;
  this.push(null);
}

;(function () {
  var methods = {
      'readDoubleBE' : 8
    , 'readDoubleLE' : 8
    , 'readFloatBE'  : 4
    , 'readFloatLE'  : 4
    , 'readInt32BE'  : 4
    , 'readInt32LE'  : 4
    , 'readUInt32BE' : 4
    , 'readUInt32LE' : 4
    , 'readInt16BE'  : 2
    , 'readInt16LE'  : 2
    , 'readUInt16BE' : 2
    , 'readUInt16LE' : 2
    , 'readInt8'     : 1
    , 'readUInt8'    : 1
  }

  for (var m in methods) {
    (function (m) {
      BufferList.prototype[m] = function (offset) {
        return this.slice(offset, offset + methods[m])[m](0)
      }
    }(m))
  }
}())

module.exports = BufferList

}).call(this,require("buffer").Buffer)
},{"buffer":18,"readable-stream/duplex":397,"util":247}],397:[function(require,module,exports){
arguments[4][220][0].apply(exports,arguments)
},{"./lib/_stream_duplex.js":398,"dup":220}],398:[function(require,module,exports){
arguments[4][221][0].apply(exports,arguments)
},{"./_stream_readable":399,"./_stream_writable":400,"core-util-is":401,"dup":221,"inherits":402,"process-nextick-args":404}],399:[function(require,module,exports){
arguments[4][223][0].apply(exports,arguments)
},{"./_stream_duplex":398,"_process":215,"buffer":18,"core-util-is":401,"dup":223,"events":208,"inherits":402,"isarray":403,"process-nextick-args":404,"string_decoder/":405,"util":4}],400:[function(require,module,exports){
arguments[4][225][0].apply(exports,arguments)
},{"./_stream_duplex":398,"buffer":18,"core-util-is":401,"dup":225,"events":208,"inherits":402,"process-nextick-args":404,"util-deprecate":406}],401:[function(require,module,exports){
(function (Buffer){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
  return Array.isArray(ar);
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return isObject(e) &&
      (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

function isBuffer(arg) {
  return Buffer.isBuffer(arg);
}
exports.isBuffer = isBuffer;

function objectToString(o) {
  return Object.prototype.toString.call(o);
}
}).call(this,{"isBuffer":require("../../../../../../../../../../../../browserify/node_modules/insert-module-globals/node_modules/is-buffer/index.js")})
},{"../../../../../../../../../../../../browserify/node_modules/insert-module-globals/node_modules/is-buffer/index.js":211}],402:[function(require,module,exports){
arguments[4][210][0].apply(exports,arguments)
},{"dup":210}],403:[function(require,module,exports){
arguments[4][212][0].apply(exports,arguments)
},{"dup":212}],404:[function(require,module,exports){
arguments[4][227][0].apply(exports,arguments)
},{"_process":215,"dup":227}],405:[function(require,module,exports){
arguments[4][243][0].apply(exports,arguments)
},{"buffer":18,"dup":243}],406:[function(require,module,exports){
arguments[4][228][0].apply(exports,arguments)
},{"dup":228}],407:[function(require,module,exports){
function Caseless (dict) {
  this.dict = dict || {}
}
Caseless.prototype.set = function (name, value, clobber) {
  if (typeof name === 'object') {
    for (var i in name) {
      this.set(i, name[i], value)
    }
  } else {
    if (typeof clobber === 'undefined') clobber = true
    var has = this.has(name)

    if (!clobber && has) this.dict[has] = this.dict[has] + ',' + value
    else this.dict[has || name] = value
    return has
  }
}
Caseless.prototype.has = function (name) {
  var keys = Object.keys(this.dict)
    , name = name.toLowerCase()
    ;
  for (var i=0;i<keys.length;i++) {
    if (keys[i].toLowerCase() === name) return keys[i]
  }
  return false
}
Caseless.prototype.get = function (name) {
  name = name.toLowerCase()
  var result, _key
  var headers = this.dict
  Object.keys(headers).forEach(function (key) {
    _key = key.toLowerCase()
    if (name === _key) result = headers[key]
  })
  return result
}
Caseless.prototype.swap = function (name) {
  var has = this.has(name)
  if (!has) throw new Error('There is no header than matches "'+name+'"')
  this.dict[name] = this.dict[has]
  delete this.dict[has]
}
Caseless.prototype.del = function (name) {
  var has = this.has(name)
  return delete this.dict[has || name]
}

module.exports = function (dict) {return new Caseless(dict)}
module.exports.httpify = function (resp, headers) {
  var c = new Caseless(headers)
  resp.setHeader = function (key, value, clobber) {
    if (typeof value === 'undefined') return
    return c.set(key, value, clobber)
  }
  resp.hasHeader = function (key) {
    return c.has(key)
  }
  resp.getHeader = function (key) {
    return c.get(key)
  }
  resp.removeHeader = function (key) {
    return c.del(key)
  }
  resp.headers = c.dict
  return c
}

},{}],408:[function(require,module,exports){
(function (Buffer){
var util = require('util');
var Stream = require('stream').Stream;
var DelayedStream = require('delayed-stream');

module.exports = CombinedStream;
function CombinedStream() {
  this.writable = false;
  this.readable = true;
  this.dataSize = 0;
  this.maxDataSize = 2 * 1024 * 1024;
  this.pauseStreams = true;

  this._released = false;
  this._streams = [];
  this._currentStream = null;
}
util.inherits(CombinedStream, Stream);

CombinedStream.create = function(options) {
  var combinedStream = new this();

  options = options || {};
  for (var option in options) {
    combinedStream[option] = options[option];
  }

  return combinedStream;
};

CombinedStream.isStreamLike = function(stream) {
  return (typeof stream !== 'function')
    && (typeof stream !== 'string')
    && (typeof stream !== 'boolean')
    && (typeof stream !== 'number')
    && (!Buffer.isBuffer(stream));
};

CombinedStream.prototype.append = function(stream) {
  var isStreamLike = CombinedStream.isStreamLike(stream);

  if (isStreamLike) {
    if (!(stream instanceof DelayedStream)) {
      var newStream = DelayedStream.create(stream, {
        maxDataSize: Infinity,
        pauseStream: this.pauseStreams,
      });
      stream.on('data', this._checkDataSize.bind(this));
      stream = newStream;
    }

    this._handleErrors(stream);

    if (this.pauseStreams) {
      stream.pause();
    }
  }

  this._streams.push(stream);
  return this;
};

CombinedStream.prototype.pipe = function(dest, options) {
  Stream.prototype.pipe.call(this, dest, options);
  this.resume();
  return dest;
};

CombinedStream.prototype._getNext = function() {
  this._currentStream = null;
  var stream = this._streams.shift();


  if (typeof stream == 'undefined') {
    this.end();
    return;
  }

  if (typeof stream !== 'function') {
    this._pipeNext(stream);
    return;
  }

  var getStream = stream;
  getStream(function(stream) {
    var isStreamLike = CombinedStream.isStreamLike(stream);
    if (isStreamLike) {
      stream.on('data', this._checkDataSize.bind(this));
      this._handleErrors(stream);
    }

    this._pipeNext(stream);
  }.bind(this));
};

CombinedStream.prototype._pipeNext = function(stream) {
  this._currentStream = stream;

  var isStreamLike = CombinedStream.isStreamLike(stream);
  if (isStreamLike) {
    stream.on('end', this._getNext.bind(this));
    stream.pipe(this, {end: false});
    return;
  }

  var value = stream;
  this.write(value);
  this._getNext();
};

CombinedStream.prototype._handleErrors = function(stream) {
  var self = this;
  stream.on('error', function(err) {
    self._emitError(err);
  });
};

CombinedStream.prototype.write = function(data) {
  this.emit('data', data);
};

CombinedStream.prototype.pause = function() {
  if (!this.pauseStreams) {
    return;
  }

  if(this.pauseStreams && this._currentStream && typeof(this._currentStream.pause) == 'function') this._currentStream.pause();
  this.emit('pause');
};

CombinedStream.prototype.resume = function() {
  if (!this._released) {
    this._released = true;
    this.writable = true;
    this._getNext();
  }

  if(this.pauseStreams && this._currentStream && typeof(this._currentStream.resume) == 'function') this._currentStream.resume();
  this.emit('resume');
};

CombinedStream.prototype.end = function() {
  this._reset();
  this.emit('end');
};

CombinedStream.prototype.destroy = function() {
  this._reset();
  this.emit('close');
};

CombinedStream.prototype._reset = function() {
  this.writable = false;
  this._streams = [];
  this._currentStream = null;
};

CombinedStream.prototype._checkDataSize = function() {
  this._updateDataSize();
  if (this.dataSize <= this.maxDataSize) {
    return;
  }

  var message =
    'DelayedStream#maxDataSize of ' + this.maxDataSize + ' bytes exceeded.';
  this._emitError(new Error(message));
};

CombinedStream.prototype._updateDataSize = function() {
  this.dataSize = 0;

  var self = this;
  this._streams.forEach(function(stream) {
    if (!stream.dataSize) {
      return;
    }

    self.dataSize += stream.dataSize;
  });

  if (this._currentStream && this._currentStream.dataSize) {
    this.dataSize += this._currentStream.dataSize;
  }
};

CombinedStream.prototype._emitError = function(err) {
  this._reset();
  this.emit('error', err);
};

}).call(this,{"isBuffer":require("../../../../../../../../browserify/node_modules/insert-module-globals/node_modules/is-buffer/index.js")})
},{"../../../../../../../../browserify/node_modules/insert-module-globals/node_modules/is-buffer/index.js":211,"delayed-stream":409,"stream":233,"util":247}],409:[function(require,module,exports){
var Stream = require('stream').Stream;
var util = require('util');

module.exports = DelayedStream;
function DelayedStream() {
  this.source = null;
  this.dataSize = 0;
  this.maxDataSize = 1024 * 1024;
  this.pauseStream = true;

  this._maxDataSizeExceeded = false;
  this._released = false;
  this._bufferedEvents = [];
}
util.inherits(DelayedStream, Stream);

DelayedStream.create = function(source, options) {
  var delayedStream = new this();

  options = options || {};
  for (var option in options) {
    delayedStream[option] = options[option];
  }

  delayedStream.source = source;

  var realEmit = source.emit;
  source.emit = function() {
    delayedStream._handleEmit(arguments);
    return realEmit.apply(source, arguments);
  };

  source.on('error', function() {});
  if (delayedStream.pauseStream) {
    source.pause();
  }

  return delayedStream;
};

Object.defineProperty(DelayedStream.prototype, 'readable', {
  configurable: true,
  enumerable: true,
  get: function() {
    return this.source.readable;
  }
});

DelayedStream.prototype.setEncoding = function() {
  return this.source.setEncoding.apply(this.source, arguments);
};

DelayedStream.prototype.resume = function() {
  if (!this._released) {
    this.release();
  }

  this.source.resume();
};

DelayedStream.prototype.pause = function() {
  this.source.pause();
};

DelayedStream.prototype.release = function() {
  this._released = true;

  this._bufferedEvents.forEach(function(args) {
    this.emit.apply(this, args);
  }.bind(this));
  this._bufferedEvents = [];
};

DelayedStream.prototype.pipe = function() {
  var r = Stream.prototype.pipe.apply(this, arguments);
  this.resume();
  return r;
};

DelayedStream.prototype._handleEmit = function(args) {
  if (this._released) {
    this.emit.apply(this, args);
    return;
  }

  if (args[0] === 'data') {
    this.dataSize += args[1].length;
    this._checkIfMaxDataSizeExceeded();
  }

  this._bufferedEvents.push(args);
};

DelayedStream.prototype._checkIfMaxDataSizeExceeded = function() {
  if (this._maxDataSizeExceeded) {
    return;
  }

  if (this.dataSize <= this.maxDataSize) {
    return;
  }

  this._maxDataSizeExceeded = true;
  var message =
    'DelayedStream#maxDataSize of ' + this.maxDataSize + ' bytes exceeded.'
  this.emit('error', new Error(message));
};

},{"stream":233,"util":247}],410:[function(require,module,exports){
'use strict';

var hasOwn = Object.prototype.hasOwnProperty;
var toStr = Object.prototype.toString;

var isArray = function isArray(arr) {
	if (typeof Array.isArray === 'function') {
		return Array.isArray(arr);
	}

	return toStr.call(arr) === '[object Array]';
};

var isPlainObject = function isPlainObject(obj) {
	if (!obj || toStr.call(obj) !== '[object Object]') {
		return false;
	}

	var hasOwnConstructor = hasOwn.call(obj, 'constructor');
	var hasIsPrototypeOf = obj.constructor && obj.constructor.prototype && hasOwn.call(obj.constructor.prototype, 'isPrototypeOf');
	// Not own constructor property must be Object
	if (obj.constructor && !hasOwnConstructor && !hasIsPrototypeOf) {
		return false;
	}

	// Own properties are enumerated firstly, so to speed up,
	// if last one is own, then all properties are own.
	var key;
	for (key in obj) {/**/}

	return typeof key === 'undefined' || hasOwn.call(obj, key);
};

module.exports = function extend() {
	var options, name, src, copy, copyIsArray, clone,
		target = arguments[0],
		i = 1,
		length = arguments.length,
		deep = false;

	// Handle a deep copy situation
	if (typeof target === 'boolean') {
		deep = target;
		target = arguments[1] || {};
		// skip the boolean and the target
		i = 2;
	} else if ((typeof target !== 'object' && typeof target !== 'function') || target == null) {
		target = {};
	}

	for (; i < length; ++i) {
		options = arguments[i];
		// Only deal with non-null/undefined values
		if (options != null) {
			// Extend the base object
			for (name in options) {
				src = target[name];
				copy = options[name];

				// Prevent never-ending loop
				if (target !== copy) {
					// Recurse if we're merging plain objects or arrays
					if (deep && copy && (isPlainObject(copy) || (copyIsArray = isArray(copy)))) {
						if (copyIsArray) {
							copyIsArray = false;
							clone = src && isArray(src) ? src : [];
						} else {
							clone = src && isPlainObject(src) ? src : {};
						}

						// Never move original objects, clone them
						target[name] = extend(deep, clone, copy);

					// Don't bring in undefined values
					} else if (typeof copy !== 'undefined') {
						target[name] = copy;
					}
				}
			}
		}
	}

	// Return the modified object
	return target;
};


},{}],411:[function(require,module,exports){
module.exports = ForeverAgent
ForeverAgent.SSL = ForeverAgentSSL

var util = require('util')
  , Agent = require('http').Agent
  , net = require('net')
  , tls = require('tls')
  , AgentSSL = require('https').Agent
  
function getConnectionName(host, port) {  
  var name = ''
  if (typeof host === 'string') {
    name = host + ':' + port
  } else {
    // For node.js v012.0 and iojs-v1.5.1, host is an object. And any existing localAddress is part of the connection name.
    name = host.host + ':' + host.port + ':' + (host.localAddress ? (host.localAddress + ':') : ':')
  }
  return name
}    

function ForeverAgent(options) {
  var self = this
  self.options = options || {}
  self.requests = {}
  self.sockets = {}
  self.freeSockets = {}
  self.maxSockets = self.options.maxSockets || Agent.defaultMaxSockets
  self.minSockets = self.options.minSockets || ForeverAgent.defaultMinSockets
  self.on('free', function(socket, host, port) {
    var name = getConnectionName(host, port)

    if (self.requests[name] && self.requests[name].length) {
      self.requests[name].shift().onSocket(socket)
    } else if (self.sockets[name].length < self.minSockets) {
      if (!self.freeSockets[name]) self.freeSockets[name] = []
      self.freeSockets[name].push(socket)
      
      // if an error happens while we don't use the socket anyway, meh, throw the socket away
      var onIdleError = function() {
        socket.destroy()
      }
      socket._onIdleError = onIdleError
      socket.on('error', onIdleError)
    } else {
      // If there are no pending requests just destroy the
      // socket and it will get removed from the pool. This
      // gets us out of timeout issues and allows us to
      // default to Connection:keep-alive.
      socket.destroy()
    }
  })

}
util.inherits(ForeverAgent, Agent)

ForeverAgent.defaultMinSockets = 5


ForeverAgent.prototype.createConnection = net.createConnection
ForeverAgent.prototype.addRequestNoreuse = Agent.prototype.addRequest
ForeverAgent.prototype.addRequest = function(req, host, port) {
  var name = getConnectionName(host, port)
  
  if (typeof host !== 'string') {
    var options = host
    port = options.port
    host = options.host
  }

  if (this.freeSockets[name] && this.freeSockets[name].length > 0 && !req.useChunkedEncodingByDefault) {
    var idleSocket = this.freeSockets[name].pop()
    idleSocket.removeListener('error', idleSocket._onIdleError)
    delete idleSocket._onIdleError
    req._reusedSocket = true
    req.onSocket(idleSocket)
  } else {
    this.addRequestNoreuse(req, host, port)
  }
}

ForeverAgent.prototype.removeSocket = function(s, name, host, port) {
  if (this.sockets[name]) {
    var index = this.sockets[name].indexOf(s)
    if (index !== -1) {
      this.sockets[name].splice(index, 1)
    }
  } else if (this.sockets[name] && this.sockets[name].length === 0) {
    // don't leak
    delete this.sockets[name]
    delete this.requests[name]
  }
  
  if (this.freeSockets[name]) {
    var index = this.freeSockets[name].indexOf(s)
    if (index !== -1) {
      this.freeSockets[name].splice(index, 1)
      if (this.freeSockets[name].length === 0) {
        delete this.freeSockets[name]
      }
    }
  }

  if (this.requests[name] && this.requests[name].length) {
    // If we have pending requests and a socket gets closed a new one
    // needs to be created to take over in the pool for the one that closed.
    this.createSocket(name, host, port).emit('free')
  }
}

function ForeverAgentSSL (options) {
  ForeverAgent.call(this, options)
}
util.inherits(ForeverAgentSSL, ForeverAgent)

ForeverAgentSSL.prototype.createConnection = createConnectionSSL
ForeverAgentSSL.prototype.addRequestNoreuse = AgentSSL.prototype.addRequest

function createConnectionSSL (port, host, options) {
  if (typeof port === 'object') {
    options = port;
  } else if (typeof host === 'object') {
    options = host;
  } else if (typeof options === 'object') {
    options = options;
  } else {
    options = {};
  }

  if (typeof port === 'number') {
    options.port = port;
  }

  if (typeof host === 'string') {
    options.host = host;
  }

  return tls.connect(options);
}

},{"http":234,"https":209,"net":2,"tls":2,"util":247}],412:[function(require,module,exports){
module.exports = FormData;
},{}],413:[function(require,module,exports){
'use strict'

function ValidationError (errors) {
  this.name = 'ValidationError'
  this.errors = errors
}

ValidationError.prototype = Error.prototype

module.exports = ValidationError

},{}],414:[function(require,module,exports){
'use strict'

var Promise = require('pinkie-promise')
var runner = require('./runner')
var schemas = require('./schemas')

var promisify = function (schema) {
  return function (data) {
    return new Promise(function (resolve, reject) {
      runner(schema, data, function (err, valid) {
        return err === null ? resolve(data) : reject(err)
      })
    })
  }
}

module.exports = promisify(schemas.har)

// utility methods for all parts of the schema
Object.keys(schemas).map(function (name) {
  module.exports[name] = promisify(schemas[name])
})

},{"./runner":415,"./schemas":423,"pinkie-promise":439}],415:[function(require,module,exports){
'use strict'

var schemas = require('./schemas')
var ValidationError = require('./error')
var validator = require('is-my-json-valid')

module.exports = function (schema, data, cb) {
  // default value
  var valid = false

  // validator config
  var validate = validator(schema, {
    greedy: true,
    verbose: true,
    schemas: schemas
  })

  // execute is-my-json-valid
  if (data !== undefined) {
    valid = validate(data)
  }

  // callback?
  if (typeof cb === 'function') {
    return cb(validate.errors ? new ValidationError(validate.errors) : null, valid)
  }

  return valid
}

},{"./error":413,"./schemas":423,"is-my-json-valid":433}],416:[function(require,module,exports){
module.exports={
  "properties": {
    "beforeRequest": {
      "$ref": "#cacheEntry"
    },
    "afterRequest": {
      "$ref": "#cacheEntry"
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],417:[function(require,module,exports){
module.exports={
  "oneOf": [{
    "type": "object",
    "optional": true,
    "required": [
      "lastAccess",
      "eTag",
      "hitCount"
    ],
    "properties": {
      "expires": {
        "type": "string"
      },
      "lastAccess": {
        "type": "string"
      },
      "eTag": {
        "type": "string"
      },
      "hitCount": {
        "type": "integer"
      },
      "comment": {
        "type": "string"
      }
    }
  }, {
    "type": null,
    "additionalProperties": false
  }]
}

},{}],418:[function(require,module,exports){
module.exports={
  "type": "object",
  "required": [
    "size",
    "mimeType"
  ],
  "properties": {
    "size": {
      "type": "integer"
    },
    "compression": {
      "type": "integer"
    },
    "mimeType": {
      "type": "string"
    },
    "text": {
      "type": "string"
    },
    "encoding": {
      "type": "string"
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],419:[function(require,module,exports){
module.exports={
  "type": "object",
  "required": [
    "name",
    "value"
  ],
  "properties": {
    "name": {
      "type": "string"
    },
    "value": {
      "type": "string"
    },
    "path": {
      "type": "string"
    },
    "domain": {
      "type": "string"
    },
    "expires": {
      "type": ["string", "null"],
      "format": "date-time"
    },
    "httpOnly": {
      "type": "boolean"
    },
    "secure": {
      "type": "boolean"
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],420:[function(require,module,exports){
module.exports={
  "type": "object",
  "required": [
    "name",
    "version"
  ],
  "properties": {
    "name": {
      "type": "string"
    },
    "version": {
      "type": "string"
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],421:[function(require,module,exports){
module.exports={
  "type": "object",
  "optional": true,
  "required": [
    "startedDateTime",
    "time",
    "request",
    "response",
    "cache",
    "timings"
  ],
  "properties": {
    "pageref": {
      "type": "string"
    },
    "startedDateTime": {
      "type": "string",
      "format": "date-time",
      "pattern": "^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))"
    },
    "time": {
      "type": "number",
      "min": 0
    },
    "request": {
      "$ref": "#request"
    },
    "response": {
      "$ref": "#response"
    },
    "cache": {
      "$ref": "#cache"
    },
    "timings": {
      "$ref": "#timings"
    },
    "serverIPAddress": {
      "type": "string",
      "oneOf": [
        { "format": "ipv4" },
        { "format": "ipv6" }
      ]
    },
    "connection": {
      "type": "string"
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],422:[function(require,module,exports){
module.exports={
  "type": "object",
  "required": [
    "log"
  ],
  "properties": {
    "log": {
      "$ref": "#log"
    }
  }
}

},{}],423:[function(require,module,exports){
'use strict'

var schemas = {
  cache: require('./cache.json'),
  cacheEntry: require('./cacheEntry.json'),
  content: require('./content.json'),
  cookie: require('./cookie.json'),
  creator: require('./creator.json'),
  entry: require('./entry.json'),
  har: require('./har.json'),
  log: require('./log.json'),
  page: require('./page.json'),
  pageTimings: require('./pageTimings.json'),
  postData: require('./postData.json'),
  record: require('./record.json'),
  request: require('./request.json'),
  response: require('./response.json'),
  timings: require('./timings.json')
}

// is-my-json-valid does not provide meaningful error messages for external schemas
// this is a workaround
schemas.cache.properties.beforeRequest = schemas.cacheEntry
schemas.cache.properties.afterRequest = schemas.cacheEntry

schemas.page.properties.pageTimings = schemas.pageTimings

schemas.request.properties.cookies.items = schemas.cookie
schemas.request.properties.headers.items = schemas.record
schemas.request.properties.queryString.items = schemas.record
schemas.request.properties.postData = schemas.postData

schemas.response.properties.cookies.items = schemas.cookie
schemas.response.properties.headers.items = schemas.record
schemas.response.properties.content = schemas.content

schemas.entry.properties.request = schemas.request
schemas.entry.properties.response = schemas.response
schemas.entry.properties.cache = schemas.cache
schemas.entry.properties.timings = schemas.timings

schemas.log.properties.creator = schemas.creator
schemas.log.properties.browser = schemas.creator
schemas.log.properties.pages.items = schemas.page
schemas.log.properties.entries.items = schemas.entry

schemas.har.properties.log = schemas.log

module.exports = schemas

},{"./cache.json":416,"./cacheEntry.json":417,"./content.json":418,"./cookie.json":419,"./creator.json":420,"./entry.json":421,"./har.json":422,"./log.json":424,"./page.json":425,"./pageTimings.json":426,"./postData.json":427,"./record.json":428,"./request.json":429,"./response.json":430,"./timings.json":431}],424:[function(require,module,exports){
module.exports={
  "type": "object",
  "required": [
    "version",
    "creator",
    "entries"
  ],
  "properties": {
    "version": {
      "type": "string"
    },
    "creator": {
      "$ref": "#creator"
    },
    "browser": {
      "$ref": "#creator"
    },
    "pages": {
      "type": "array",
      "items": {
        "$ref": "#page"
      }
    },
    "entries": {
      "type": "array",
      "items": {
        "$ref": "#entry"
      }
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],425:[function(require,module,exports){
module.exports={
  "type": "object",
  "optional": true,
  "required": [
    "startedDateTime",
    "id",
    "title",
    "pageTimings"
  ],
  "properties": {
    "startedDateTime": {
      "type": "string",
      "format": "date-time",
      "pattern": "^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))"
    },
    "id": {
      "type": "string",
      "unique": true
    },
    "title": {
      "type": "string"
    },
    "pageTimings": {
      "$ref": "#pageTimings"
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],426:[function(require,module,exports){
module.exports={
  "type": "object",
  "properties": {
    "onContentLoad": {
      "type": "number",
      "min": -1
    },
    "onLoad": {
      "type": "number",
      "min": -1
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],427:[function(require,module,exports){
module.exports={
  "type": "object",
  "optional": true,
  "required": [
    "mimeType"
  ],
  "properties": {
    "mimeType": {
      "type": "string"
    },
    "text": {
      "type": "string"
    },
    "params": {
      "type": "array",
      "required": [
        "name"
      ],
      "properties": {
        "name": {
          "type": "string"
        },
        "value": {
          "type": "string"
        },
        "fileName": {
          "type": "string"
        },
        "contentType": {
          "type": "string"
        },
        "comment": {
          "type": "string"
        }
      }
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],428:[function(require,module,exports){
module.exports={
  "type": "object",
  "required": [
    "name",
    "value"
  ],
  "properties": {
    "name": {
      "type": "string"
    },
    "value": {
      "type": "string"
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],429:[function(require,module,exports){
module.exports={
  "type": "object",
  "required": [
    "method",
    "url",
    "httpVersion",
    "cookies",
    "headers",
    "queryString",
    "headersSize",
    "bodySize"
  ],
  "properties": {
    "method": {
      "type": "string"
    },
    "url": {
      "type": "string",
      "format": "uri"
    },
    "httpVersion": {
      "type": "string"
    },
    "cookies": {
      "type": "array",
      "items": {
        "$ref": "#cookie"
      }
    },
    "headers": {
      "type": "array",
      "items": {
        "$ref": "#record"
      }
    },
    "queryString": {
      "type": "array",
      "items": {
        "$ref": "#record"
      }
    },
    "postData": {
      "$ref": "#postData"
    },
    "headersSize": {
      "type": "integer"
    },
    "bodySize": {
      "type": "integer"
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],430:[function(require,module,exports){
module.exports={
  "type": "object",
  "required": [
    "status",
    "statusText",
    "httpVersion",
    "cookies",
    "headers",
    "content",
    "redirectURL",
    "headersSize",
    "bodySize"
  ],
  "properties": {
    "status": {
      "type": "integer"
    },
    "statusText": {
      "type": "string"
    },
    "httpVersion": {
      "type": "string"
    },
    "cookies": {
      "type": "array",
      "items": {
        "$ref": "#cookie"
      }
    },
    "headers": {
      "type": "array",
      "items": {
        "$ref": "#record"
      }
    },
    "content": {
      "$ref": "#content"
    },
    "redirectURL": {
      "type": "string"
    },
    "headersSize": {
      "type": "integer"
    },
    "bodySize": {
      "type": "integer"
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],431:[function(require,module,exports){
module.exports={
  "required": [
    "send",
    "wait",
    "receive"
  ],
  "properties": {
    "dns": {
      "type": "number",
      "min": -1
    },
    "connect": {
      "type": "number",
      "min": -1
    },
    "blocked": {
      "type": "number",
      "min": -1
    },
    "send": {
      "type": "number",
      "min": -1
    },
    "wait": {
      "type": "number",
      "min": -1
    },
    "receive": {
      "type": "number",
      "min": -1
    },
    "ssl": {
      "type": "number",
      "min": -1
    },
    "comment": {
      "type": "string"
    }
  }
}

},{}],432:[function(require,module,exports){
exports['date-time'] = /^\d{4}-(?:0[0-9]{1}|1[0-2]{1})-[0-9]{2}[tT ]\d{2}:\d{2}:\d{2}(\.\d+)?([zZ]|[+-]\d{2}:\d{2})$/
exports['date'] = /^\d{4}-(?:0[0-9]{1}|1[0-2]{1})-[0-9]{2}$/
exports['time'] = /^\d{2}:\d{2}:\d{2}$/
exports['email'] = /^\S+@\S+$/
exports['ip-address'] = exports['ipv4'] = /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/
exports['ipv6'] = /^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*$/
exports['uri'] = /^[a-zA-Z][a-zA-Z0-9+-.]*:[^\s]*$/
exports['color'] = /(#?([0-9A-Fa-f]{3,6})\b)|(aqua)|(black)|(blue)|(fuchsia)|(gray)|(green)|(lime)|(maroon)|(navy)|(olive)|(orange)|(purple)|(red)|(silver)|(teal)|(white)|(yellow)|(rgb\(\s*\b([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\b\s*,\s*\b([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\b\s*,\s*\b([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\b\s*\))|(rgb\(\s*(\d?\d%|100%)+\s*,\s*(\d?\d%|100%)+\s*,\s*(\d?\d%|100%)+\s*\))/
exports['hostname'] = /^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])(\.([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9]))*$/
exports['alpha'] = /^[a-zA-Z]+$/
exports['alphanumeric'] = /^[a-zA-Z0-9]+$/
exports['style'] = /\s*(.+?):\s*([^;]+);?/g
exports['phone'] = /^\+(?:[0-9] ?){6,14}[0-9]$/
exports['utc-millisec'] = /^[0-9]+(\.?[0-9]+)?$/

},{}],433:[function(require,module,exports){
var genobj = require('generate-object-property')
var genfun = require('generate-function')
var jsonpointer = require('jsonpointer')
var xtend = require('xtend')
var formats = require('./formats')

var get = function(obj, additionalSchemas, ptr) {
  if (/^https?:\/\//.test(ptr)) return null

  var visit = function(sub) {
    if (sub && sub.id === ptr) return sub
    if (typeof sub !== 'object' || !sub) return null
    return Object.keys(sub).reduce(function(res, k) {
      return res || visit(sub[k])
    }, null)
  }

  var res = visit(obj)
  if (res) return res

  ptr = ptr.replace(/^#/, '')
  ptr = ptr.replace(/\/$/, '')

  try {
    return jsonpointer.get(obj, decodeURI(ptr))
  } catch (err) {
    var end = ptr.indexOf('#')
    var other
    // external reference
    if (end !== 0) {
      // fragment doesn't exist.
      if (end === -1) {
        other = additionalSchemas[ptr]
      } else {
        var ext = ptr.slice(0, end)
        other = additionalSchemas[ext]
        var fragment = ptr.slice(end).replace(/^#/, '')
        try {
          return jsonpointer.get(other, fragment)
        } catch (err) {}
      }
    } else {
      other = additionalSchemas[ptr]
    }
    return other || null
  }
}

var formatName = function(field) {
  field = JSON.stringify(field)
  var pattern = /\[([^\[\]"]+)\]/
  while (pattern.test(field)) field = field.replace(pattern, '."+$1+"')
  return field
}

var types = {}

types.any = function() {
  return 'true'
}

types.null = function(name) {
  return name+' === null'
}

types.boolean = function(name) {
  return 'typeof '+name+' === "boolean"'
}

types.array = function(name) {
  return 'Array.isArray('+name+')'
}

types.object = function(name) {
  return 'typeof '+name+' === "object" && '+name+' && !Array.isArray('+name+')'
}

types.number = function(name) {
  return 'typeof '+name+' === "number"'
}

types.integer = function(name) {
  return 'typeof '+name+' === "number" && (Math.floor('+name+') === '+name+' || '+name+' > 9007199254740992 || '+name+' < -9007199254740992)'
}

types.string = function(name) {
  return 'typeof '+name+' === "string"'
}

var unique = function(array) {
  var list = []
  for (var i = 0; i < array.length; i++) {
    list.push(typeof array[i] === 'object' ? JSON.stringify(array[i]) : array[i])
  }
  for (var i = 1; i < list.length; i++) {
    if (list.indexOf(list[i]) !== i) return false
  }
  return true
}

var toType = function(node) {
  return node.type
}

var compile = function(schema, cache, root, reporter, opts) {
  var fmts = opts ? xtend(formats, opts.formats) : formats
  var scope = {unique:unique, formats:fmts}
  var verbose = opts ? !!opts.verbose : false;
  var greedy = opts && opts.greedy !== undefined ?
    opts.greedy : false;

  var syms = {}
  var gensym = function(name) {
    return name+(syms[name] = (syms[name] || 0)+1)
  }

  var reversePatterns = {}
  var patterns = function(p) {
    if (reversePatterns[p]) return reversePatterns[p]
    var n = gensym('pattern')
    scope[n] = new RegExp(p)
    reversePatterns[p] = n
    return n
  }

  var vars = ['i','j','k','l','m','n','o','p','q','r','s','t','u','v','x','y','z']
  var genloop = function() {
    var v = vars.shift()
    vars.push(v+v[0])
    return v
  }

  var visit = function(name, node, reporter, filter) {
    var properties = node.properties
    var type = node.type
    var tuple = false

    if (Array.isArray(node.items)) { // tuple type
      properties = {}
      node.items.forEach(function(item, i) {
        properties[i] = item
      })
      type = 'array'
      tuple = true
    }

    var indent = 0
    var error = function(msg, prop, value) {
      validate('errors++')
      if (reporter === true) {
        validate('if (validate.errors === null) validate.errors = []')
        if (verbose) {
          validate('validate.errors.push({field:%s,message:%s,value:%s})', formatName(prop || name), JSON.stringify(msg), value || name)
        } else {
          validate('validate.errors.push({field:%s,message:%s})', formatName(prop || name), JSON.stringify(msg))
        }
      }
    }

    if (node.required === true) {
      indent++
      validate('if (%s === undefined) {', name)
      error('is required')
      validate('} else {')
    } else {
      indent++
      validate('if (%s !== undefined) {', name)
    }

    var valid = [].concat(type)
      .map(function(t) {
        return types[t || 'any'](name)
      })
      .join(' || ') || 'true'

    if (valid !== 'true') {
      indent++
      validate('if (!(%s)) {', valid)
      error('is the wrong type')
      validate('} else {')
    }

    if (tuple) {
      if (node.additionalItems === false) {
        validate('if (%s.length > %d) {', name, node.items.length)
        error('has additional items')
        validate('}')
      } else if (node.additionalItems) {
        var i = genloop()
        validate('for (var %s = %d; %s < %s.length; %s++) {', i, node.items.length, i, name, i)
        visit(name+'['+i+']', node.additionalItems, reporter, filter)
        validate('}')
      }   
    }

    if (node.format && fmts[node.format]) {
      if (type !== 'string' && formats[node.format]) validate('if (%s) {', types.string(name))
      var n = gensym('format')
      scope[n] = fmts[node.format]

      if (typeof scope[n] === 'function') validate('if (!%s(%s)) {', n, name)
      else validate('if (!%s.test(%s)) {', n, name)
      error('must be '+node.format+' format')
      validate('}')
      if (type !== 'string' && formats[node.format]) validate('}')
    }

    if (Array.isArray(node.required)) {
      var isUndefined = function(req) {
        return genobj(name, req) + ' === undefined'
      }

      var checkRequired = function (req) {
        var prop = genobj(name, req);
        validate('if (%s === undefined) {', prop)
        error('is required', prop)
        validate('missing++')
        validate('}')
      }
      validate('if ((%s)) {', type !== 'object' ? types.object(name) : 'true')
      validate('var missing = 0')
      node.required.map(checkRequired)
      validate('}');
      if (!greedy) {
        validate('if (missing === 0) {')
        indent++
      }
    }

    if (node.uniqueItems) {
      if (type !== 'array') validate('if (%s) {', types.array(name))
      validate('if (!(unique(%s))) {', name)
      error('must be unique')
      validate('}')
      if (type !== 'array') validate('}')
    }

    if (node.enum) {
      var complex = node.enum.some(function(e) {
        return typeof e === 'object'
      })

      var compare = complex ?
        function(e) {
          return 'JSON.stringify('+name+')'+' !== JSON.stringify('+JSON.stringify(e)+')'
        } :
        function(e) {
          return name+' !== '+JSON.stringify(e)
        }

      validate('if (%s) {', node.enum.map(compare).join(' && ') || 'false')
      error('must be an enum value')
      validate('}')
    }

    if (node.dependencies) {
      if (type !== 'object') validate('if (%s) {', types.object(name))

      Object.keys(node.dependencies).forEach(function(key) {
        var deps = node.dependencies[key]
        if (typeof deps === 'string') deps = [deps]

        var exists = function(k) {
          return genobj(name, k) + ' !== undefined'
        }

        if (Array.isArray(deps)) {
          validate('if (%s !== undefined && !(%s)) {', genobj(name, key), deps.map(exists).join(' && ') || 'true')
          error('dependencies not set')
          validate('}')
        }
        if (typeof deps === 'object') {
          validate('if (%s !== undefined) {', genobj(name, key))
          visit(name, deps, reporter, filter)
          validate('}')
        }
      })

      if (type !== 'object') validate('}')
    }

    if (node.additionalProperties || node.additionalProperties === false) {
      if (type !== 'object') validate('if (%s) {', types.object(name))

      var i = genloop()
      var keys = gensym('keys')

      var toCompare = function(p) {
        return keys+'['+i+'] !== '+JSON.stringify(p)
      }

      var toTest = function(p) {
        return '!'+patterns(p)+'.test('+keys+'['+i+'])'
      }

      var additionalProp = Object.keys(properties || {}).map(toCompare)
        .concat(Object.keys(node.patternProperties || {}).map(toTest))
        .join(' && ') || 'true'

      validate('var %s = Object.keys(%s)', keys, name)
        ('for (var %s = 0; %s < %s.length; %s++) {', i, i, keys, i)
          ('if (%s) {', additionalProp)

      if (node.additionalProperties === false) {
        if (filter) validate('delete %s', name+'['+keys+'['+i+']]')
        error('has additional properties', null, JSON.stringify(name+'.') + ' + ' + keys + '['+i+']')
      } else {
        visit(name+'['+keys+'['+i+']]', node.additionalProperties, reporter, filter)
      }

      validate
          ('}')
        ('}')

      if (type !== 'object') validate('}')
    }

    if (node.$ref) {
      var sub = get(root, opts && opts.schemas || {}, node.$ref)
      if (sub) {
        var fn = cache[node.$ref]
        if (!fn) {
          cache[node.$ref] = function proxy(data) {
            return fn(data)
          }
          fn = compile(sub, cache, root, false, opts)
        }
        var n = gensym('ref')
        scope[n] = fn
        validate('if (!(%s(%s))) {', n, name)
        error('referenced schema does not match')
        validate('}')
      }
    }

    if (node.not) {
      var prev = gensym('prev')
      validate('var %s = errors', prev)
      visit(name, node.not, false, filter)
      validate('if (%s === errors) {', prev)
      error('negative schema matches')
      validate('} else {')
        ('errors = %s', prev)
      ('}')
    }

    if (node.items && !tuple) {
      if (type !== 'array') validate('if (%s) {', types.array(name))

      var i = genloop()
      validate('for (var %s = 0; %s < %s.length; %s++) {', i, i, name, i)
      visit(name+'['+i+']', node.items, reporter, filter)
      validate('}')

      if (type !== 'array') validate('}')
    }

    if (node.patternProperties) {
      if (type !== 'object') validate('if (%s) {', types.object(name))
      var keys = gensym('keys')
      var i = genloop()
      validate
        ('var %s = Object.keys(%s)', keys, name)
        ('for (var %s = 0; %s < %s.length; %s++) {', i, i, keys, i)

      Object.keys(node.patternProperties).forEach(function(key) {
        var p = patterns(key)
        validate('if (%s.test(%s)) {', p, keys+'['+i+']')
        visit(name+'['+keys+'['+i+']]', node.patternProperties[key], reporter, filter)
        validate('}')
      })

      validate('}')
      if (type !== 'object') validate('}')
    }

    if (node.pattern) {
      var p = patterns(node.pattern)
      if (type !== 'string') validate('if (%s) {', types.string(name))
      validate('if (!(%s.test(%s))) {', p, name)
      error('pattern mismatch')
      validate('}')
      if (type !== 'string') validate('}')
    }

    if (node.allOf) {
      node.allOf.forEach(function(sch) {
        visit(name, sch, reporter, filter)
      })
    }

    if (node.anyOf && node.anyOf.length) {
      var prev = gensym('prev')

      node.anyOf.forEach(function(sch, i) {
        if (i === 0) {
          validate('var %s = errors', prev)
        } else {          
          validate('if (errors !== %s) {', prev)
            ('errors = %s', prev)
        }
        visit(name, sch, false, false)
      })
      node.anyOf.forEach(function(sch, i) {
        if (i) validate('}')
      })
      validate('if (%s !== errors) {', prev)
      error('no schemas match')
      validate('}')
    }

    if (node.oneOf && node.oneOf.length) {
      var prev = gensym('prev')
      var passes = gensym('passes')

      validate
        ('var %s = errors', prev)
        ('var %s = 0', passes)

      node.oneOf.forEach(function(sch, i) {
        visit(name, sch, false, false)
        validate('if (%s === errors) {', prev)
          ('%s++', passes)
        ('} else {')
          ('errors = %s', prev)
        ('}')
      })

      validate('if (%s !== 1) {', passes)
      error('no (or more than one) schemas match')
      validate('}')
    }

    if (node.multipleOf !== undefined) {
      if (type !== 'number' && type !== 'integer') validate('if (%s) {', types.number(name))

      var factor = ((node.multipleOf | 0) !== node.multipleOf) ? Math.pow(10, node.multipleOf.toString().split('.').pop().length) : 1
      if (factor > 1) validate('if ((%d*%s) % %d) {', factor, name, factor*node.multipleOf)
      else validate('if (%s % %d) {', name, node.multipleOf)

      error('has a remainder')
      validate('}')

      if (type !== 'number' && type !== 'integer') validate('}')
    }

    if (node.maxProperties !== undefined) {
      if (type !== 'object') validate('if (%s) {', types.object(name))
      
      validate('if (Object.keys(%s).length > %d) {', name, node.maxProperties)
      error('has more properties than allowed')
      validate('}')

      if (type !== 'object') validate('}')
    }

    if (node.minProperties !== undefined) {
      if (type !== 'object') validate('if (%s) {', types.object(name))
      
      validate('if (Object.keys(%s).length < %d) {', name, node.minProperties)
      error('has less properties than allowed')
      validate('}')

      if (type !== 'object') validate('}')
    }

    if (node.maxItems !== undefined) {
      if (type !== 'array') validate('if (%s) {', types.array(name))
      
      validate('if (%s.length > %d) {', name, node.maxItems)
      error('has more items than allowed')
      validate('}')

      if (type !== 'array') validate('}')
    }

    if (node.minItems !== undefined) {
      if (type !== 'array') validate('if (%s) {', types.array(name))
      
      validate('if (%s.length < %d) {', name, node.minItems)
      error('has less items than allowed')
      validate('}')

      if (type !== 'array') validate('}')
    }

    if (node.maxLength !== undefined) {
      if (type !== 'string') validate('if (%s) {', types.string(name))

      validate('if (%s.length > %d) {', name, node.maxLength)
      error('has longer length than allowed')
      validate('}')

      if (type !== 'string') validate('}')
    }

    if (node.minLength !== undefined) {
      if (type !== 'string') validate('if (%s) {', types.string(name))

      validate('if (%s.length < %d) {', name, node.minLength)
      error('has less length than allowed')
      validate('}')

      if (type !== 'string') validate('}')
    }

    if (node.minimum !== undefined) {
      validate('if (%s %s %d) {', name, node.exclusiveMinimum ? '<=' : '<', node.minimum)
      error('is less than minimum')
      validate('}')
    }

    if (node.maximum !== undefined) {
      validate('if (%s %s %d) {', name, node.exclusiveMaximum ? '>=' : '>', node.maximum)
      error('is more than maximum')
      validate('}')
    }

    if (properties) {
      Object.keys(properties).forEach(function(p) {
        if (Array.isArray(type) && type.indexOf('null') !== -1) validate('if (%s !== null) {', name)

        visit(genobj(name, p), properties[p], reporter, filter)

        if (Array.isArray(type) && type.indexOf('null') !== -1) validate('}')
      })
    }

    while (indent--) validate('}')
  }

  var validate = genfun
    ('function validate(data) {')
      ('validate.errors = null')
      ('var errors = 0')

  visit('data', schema, reporter, opts && opts.filter)

  validate
      ('return errors === 0')
    ('}')

  validate = validate.toFunction(scope)
  validate.errors = null

  validate.__defineGetter__('error', function() {
    if (!validate.errors) return ''
    return validate.errors
      .map(function(err) {
        return err.field+' '+err.message
      })
      .join('\n')
  })

  validate.toJSON = function() {
    return schema
  }

  return validate
}

module.exports = function(schema, opts) {
  if (typeof schema === 'string') schema = JSON.parse(schema)
  return compile(schema, {}, schema, true, opts)
}

module.exports.filter = function(schema, opts) {
  var validate = module.exports(schema, xtend(opts, {filter: true}))
  return function(sch) {
    validate(sch)
    return sch
  }
}

},{"./formats":432,"generate-function":434,"generate-object-property":435,"jsonpointer":437,"xtend":438}],434:[function(require,module,exports){
var util = require('util')

var INDENT_START = /[\{\[]/
var INDENT_END = /[\}\]]/

module.exports = function() {
  var lines = []
  var indent = 0

  var push = function(str) {
    var spaces = ''
    while (spaces.length < indent*2) spaces += '  '
    lines.push(spaces+str)
  }

  var line = function(fmt) {
    if (!fmt) return line

    if (INDENT_END.test(fmt.trim()[0]) && INDENT_START.test(fmt[fmt.length-1])) {
      indent--
      push(util.format.apply(util, arguments))
      indent++
      return line
    }
    if (INDENT_START.test(fmt[fmt.length-1])) {
      push(util.format.apply(util, arguments))
      indent++
      return line
    }
    if (INDENT_END.test(fmt.trim()[0])) {
      indent--
      push(util.format.apply(util, arguments))
      return line
    }

    push(util.format.apply(util, arguments))
    return line
  }

  line.toString = function() {
    return lines.join('\n')
  }

  line.toFunction = function(scope) {
    var src = 'return ('+line.toString()+')'

    var keys = Object.keys(scope || {}).map(function(key) {
      return key
    })

    var vals = keys.map(function(key) {
      return scope[key]
    })

    return Function.apply(null, keys.concat(src)).apply(null, vals)
  }

  if (arguments.length) line.apply(null, arguments)

  return line
}

},{"util":247}],435:[function(require,module,exports){
var isProperty = require('is-property')

var gen = function(obj, prop) {
  return isProperty(prop) ? obj+'.'+prop : obj+'['+JSON.stringify(prop)+']'
}

gen.valid = isProperty
gen.property = function (prop) {
 return isProperty(prop) ? prop : JSON.stringify(prop)
}

module.exports = gen

},{"is-property":436}],436:[function(require,module,exports){
"use strict"
function isProperty(str) {
  return 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}
module.exports = isProperty
},{}],437:[function(require,module,exports){
var untilde = function(str) {
  return str.replace(/~./g, function(m) {
    switch (m) {
      case "~0":
        return "~";
      case "~1":
        return "/";
    }
    throw new Error("Invalid tilde escape: " + m);
  });
}

var traverse = function(obj, pointer, value) {
  // assert(isArray(pointer))
  var part = untilde(pointer.shift());
  if(!obj.hasOwnProperty(part)) {
    return null;
  }
  if(pointer.length !== 0) { // keep traversin!
    return traverse(obj[part], pointer, value);
  }
  // we're done
  if(typeof value === "undefined") {
    // just reading
    return obj[part];
  }
  // set new value, return old value
  var old_value = obj[part];
  if(value === null) {
    delete obj[part];
  } else {
    obj[part] = value;
  }
  return old_value;
}

var validate_input = function(obj, pointer) {
  if(typeof obj !== "object") {
    throw new Error("Invalid input object.");
  }

  if(pointer === "") {
    return [];
  }

  if(!pointer) {
    throw new Error("Invalid JSON pointer.");
  }

  pointer = pointer.split("/");
  var first = pointer.shift();
  if (first !== "") {
    throw new Error("Invalid JSON pointer.");
  }

  return pointer;
}

var get = function(obj, pointer) {
  pointer = validate_input(obj, pointer);
  if (pointer.length === 0) {
    return obj;
  }
  return traverse(obj, pointer);
}

var set = function(obj, pointer, value) {
  pointer = validate_input(obj, pointer);
  if (pointer.length === 0) {
    throw new Error("Invalid JSON pointer for set.")
  }
  return traverse(obj, pointer, value);
}

exports.get = get
exports.set = set

},{}],438:[function(require,module,exports){
arguments[4][250][0].apply(exports,arguments)
},{"dup":250}],439:[function(require,module,exports){
(function (global){
'use strict';

module.exports = global.Promise || require('pinkie');

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"pinkie":440}],440:[function(require,module,exports){
'use strict';

var PENDING = 'pending';
var SETTLED = 'settled';
var FULFILLED = 'fulfilled';
var REJECTED = 'rejected';
var NOOP = function () {};

// async calls
var asyncSetTimer = typeof setImmediate !== 'undefined' ? setImmediate : setTimeout;
var asyncQueue = [];
var asyncTimer;

function asyncFlush() {
	// run promise callbacks
	for (var i = 0; i < asyncQueue.length; i++) {
		asyncQueue[i][0](asyncQueue[i][1]);
	}

	// reset async asyncQueue
	asyncQueue = [];
	asyncTimer = false;
}

function asyncCall(callback, arg) {
	asyncQueue.push([callback, arg]);

	if (!asyncTimer) {
		asyncTimer = true;
		asyncSetTimer(asyncFlush, 0);
	}
}

function invokeResolver(resolver, promise) {
	function resolvePromise(value) {
		resolve(promise, value);
	}

	function rejectPromise(reason) {
		reject(promise, reason);
	}

	try {
		resolver(resolvePromise, rejectPromise);
	} catch (e) {
		rejectPromise(e);
	}
}

function invokeCallback(subscriber) {
	var owner = subscriber.owner;
	var settled = owner._state;
	var value = owner._data;
	var callback = subscriber[settled];
	var promise = subscriber.then;

	if (typeof callback === 'function') {
		settled = FULFILLED;
		try {
			value = callback(value);
		} catch (e) {
			reject(promise, e);
		}
	}

	if (!handleThenable(promise, value)) {
		if (settled === FULFILLED) {
			resolve(promise, value);
		}

		if (settled === REJECTED) {
			reject(promise, value);
		}
	}
}

function handleThenable(promise, value) {
	var resolved;

	try {
		if (promise === value) {
			throw new TypeError('A promises callback cannot return that same promise.');
		}

		if (value && (typeof value === 'function' || typeof value === 'object')) {
			var then = value.then; // then should be retrived only once

			if (typeof then === 'function') {
				then.call(value, function (val) {
					if (!resolved) {
						resolved = true;

						if (value !== val) {
							resolve(promise, val);
						} else {
							fulfill(promise, val);
						}
					}
				}, function (reason) {
					if (!resolved) {
						resolved = true;

						reject(promise, reason);
					}
				});

				return true;
			}
		}
	} catch (e) {
		if (!resolved) {
			reject(promise, e);
		}

		return true;
	}

	return false;
}

function resolve(promise, value) {
	if (promise === value || !handleThenable(promise, value)) {
		fulfill(promise, value);
	}
}

function fulfill(promise, value) {
	if (promise._state === PENDING) {
		promise._state = SETTLED;
		promise._data = value;

		asyncCall(publishFulfillment, promise);
	}
}

function reject(promise, reason) {
	if (promise._state === PENDING) {
		promise._state = SETTLED;
		promise._data = reason;

		asyncCall(publishRejection, promise);
	}
}

function publish(promise) {
	promise._then = promise._then.forEach(invokeCallback);
}

function publishFulfillment(promise) {
	promise._state = FULFILLED;
	publish(promise);
}

function publishRejection(promise) {
	promise._state = REJECTED;
	publish(promise);
}

/**
 * @class
 */
function Promise(resolver) {
	if (typeof resolver !== 'function') {
		throw new TypeError('Promise resolver ' + resolver + ' is not a function');
	}

	if (this instanceof Promise === false) {
		throw new TypeError('Failed to construct \'Promise\': Please use the \'new\' operator, this object constructor cannot be called as a function.');
	}

	this._then = [];

	invokeResolver(resolver, this);
}

Promise.prototype = {
	constructor: Promise,

	_state: PENDING,
	_then: null,
	_data: undefined,

	then: function (onFulfillment, onRejection) {
		var subscriber = {
			owner: this,
			then: new this.constructor(NOOP),
			fulfilled: onFulfillment,
			rejected: onRejection
		};

		if (this._state === FULFILLED || this._state === REJECTED) {
			// already resolved, call callback async
			asyncCall(invokeCallback, subscriber);
		} else {
			// subscribe
			this._then.push(subscriber);
		}

		return subscriber.then;
	},

	'catch': function (onRejection) {
		return this.then(null, onRejection);
	}
};

Promise.all = function (promises) {
	if (!Array.isArray(promises)) {
		throw new TypeError('You must pass an array to Promise.all().');
	}

	return new Promise(function (resolve, reject) {
		var results = [];
		var remaining = 0;

		function resolver(index) {
			remaining++;
			return function (value) {
				results[index] = value;
				if (!--remaining) {
					resolve(results);
				}
			};
		}

		for (var i = 0, promise; i < promises.length; i++) {
			promise = promises[i];

			if (promise && typeof promise.then === 'function') {
				promise.then(resolver(i), reject);
			} else {
				results[i] = promise;
			}
		}

		if (!remaining) {
			resolve(results);
		}
	});
};

Promise.race = function (promises) {
	if (!Array.isArray(promises)) {
		throw new TypeError('You must pass an array to Promise.race().');
	}

	return new Promise(function (resolve, reject) {
		for (var i = 0, promise; i < promises.length; i++) {
			promise = promises[i];

			if (promise && typeof promise.then === 'function') {
				promise.then(resolve, reject);
			} else {
				resolve(promise);
			}
		}
	});
};

Promise.resolve = function (value) {
	if (value && typeof value === 'object' && value.constructor === Promise) {
		return value;
	}

	return new Promise(function (resolve) {
		resolve(value);
	});
};

Promise.reject = function (reason) {
	return new Promise(function (resolve, reject) {
		reject(reason);
	});
};

module.exports = Promise;

},{}],441:[function(require,module,exports){
/*
    HTTP Hawk Authentication Scheme
    Copyright (c) 2012-2014, Eran Hammer <eran@hammer.io>
    BSD Licensed
*/


// Declare namespace

var hawk = {
    internals: {}
};


hawk.client = {

    // Generate an Authorization header for a given request

    /*
        uri: 'http://example.com/resource?a=b' or object generated by hawk.utils.parseUri()
        method: HTTP verb (e.g. 'GET', 'POST')
        options: {

            // Required

            credentials: {
                id: 'dh37fgj492je',
                key: 'aoijedoaijsdlaksjdl',
                algorithm: 'sha256'                                 // 'sha1', 'sha256'
            },

            // Optional

            ext: 'application-specific',                        // Application specific data sent via the ext attribute
            timestamp: Date.now() / 1000,                       // A pre-calculated timestamp in seconds
            nonce: '2334f34f',                                  // A pre-generated nonce
            localtimeOffsetMsec: 400,                           // Time offset to sync with server time (ignored if timestamp provided)
            payload: '{"some":"payload"}',                      // UTF-8 encoded string for body hash generation (ignored if hash provided)
            contentType: 'application/json',                    // Payload content-type (ignored if hash provided)
            hash: 'U4MKKSmiVxk37JCCrAVIjV=',                    // Pre-calculated payload hash
            app: '24s23423f34dx',                               // Oz application id
            dlg: '234sz34tww3sd'                                // Oz delegated-by application id
        }
    */

    header: function (uri, method, options) {

        var result = {
            field: '',
            artifacts: {}
        };

        // Validate inputs

        if (!uri || (typeof uri !== 'string' && typeof uri !== 'object') ||
            !method || typeof method !== 'string' ||
            !options || typeof options !== 'object') {

            result.err = 'Invalid argument type';
            return result;
        }

        // Application time

        var timestamp = options.timestamp || hawk.utils.now(options.localtimeOffsetMsec);

        // Validate credentials

        var credentials = options.credentials;
        if (!credentials ||
            !credentials.id ||
            !credentials.key ||
            !credentials.algorithm) {

            result.err = 'Invalid credentials object';
            return result;
        }

        if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) {
            result.err = 'Unknown algorithm';
            return result;
        }

        // Parse URI

        if (typeof uri === 'string') {
            uri = hawk.utils.parseUri(uri);
        }

        // Calculate signature

        var artifacts = {
            ts: timestamp,
            nonce: options.nonce || hawk.utils.randomString(6),
            method: method,
            resource: uri.relative,
            host: uri.hostname,
            port: uri.port,
            hash: options.hash,
            ext: options.ext,
            app: options.app,
            dlg: options.dlg
        };

        result.artifacts = artifacts;

        // Calculate payload hash

        if (!artifacts.hash &&
            (options.payload || options.payload === '')) {

            artifacts.hash = hawk.crypto.calculatePayloadHash(options.payload, credentials.algorithm, options.contentType);
        }

        var mac = hawk.crypto.calculateMac('header', credentials, artifacts);

        // Construct header

        var hasExt = artifacts.ext !== null && artifacts.ext !== undefined && artifacts.ext !== '';       // Other falsey values allowed
        var header = 'Hawk id="' + credentials.id +
                     '", ts="' + artifacts.ts +
                     '", nonce="' + artifacts.nonce +
                     (artifacts.hash ? '", hash="' + artifacts.hash : '') +
                     (hasExt ? '", ext="' + hawk.utils.escapeHeaderAttribute(artifacts.ext) : '') +
                     '", mac="' + mac + '"';

        if (artifacts.app) {
            header += ', app="' + artifacts.app +
                      (artifacts.dlg ? '", dlg="' + artifacts.dlg : '') + '"';
        }

        result.field = header;

        return result;
    },

    // Generate a bewit value for a given URI

    /*
        uri: 'http://example.com/resource?a=b'
        options: {

            // Required

            credentials: {
            id: 'dh37fgj492je',
            key: 'aoijedoaijsdlaksjdl',
            algorithm: 'sha256'                             // 'sha1', 'sha256'
            },
            ttlSec: 60 * 60,                                    // TTL in seconds

            // Optional

            ext: 'application-specific',                        // Application specific data sent via the ext attribute
            localtimeOffsetMsec: 400                            // Time offset to sync with server time
         };
    */

    bewit: function (uri, options) {

        // Validate inputs

        if (!uri ||
            (typeof uri !== 'string') ||
            !options ||
            typeof options !== 'object' ||
            !options.ttlSec) {

            return '';
        }

        options.ext = (options.ext === null || options.ext === undefined ? '' : options.ext);       // Zero is valid value

        // Application time

        var now = hawk.utils.now(options.localtimeOffsetMsec);

        // Validate credentials

        var credentials = options.credentials;
        if (!credentials ||
            !credentials.id ||
            !credentials.key ||
            !credentials.algorithm) {

            return '';
        }

        if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) {
            return '';
        }

        // Parse URI

        uri = hawk.utils.parseUri(uri);

        // Calculate signature

        var exp = now + options.ttlSec;
        var mac = hawk.crypto.calculateMac('bewit', credentials, {
            ts: exp,
            nonce: '',
            method: 'GET',
            resource: uri.relative,                            // Maintain trailing '?' and query params
            host: uri.hostname,
            port: uri.port,
            ext: options.ext
        });

        // Construct bewit: id\exp\mac\ext

        var bewit = credentials.id + '\\' + exp + '\\' + mac + '\\' + options.ext;
        return hawk.utils.base64urlEncode(bewit);
    },

    // Validate server response

    /*
        request:    object created via 'new XMLHttpRequest()' after response received
        artifacts:  object received from header().artifacts
        options: {
            payload:    optional payload received
            required:   specifies if a Server-Authorization header is required. Defaults to 'false'
        }
    */

    authenticate: function (request, credentials, artifacts, options) {

        options = options || {};

        var getHeader = function (name) {

            return request.getResponseHeader ? request.getResponseHeader(name) : request.getHeader(name);
        };

        var wwwAuthenticate = getHeader('www-authenticate');
        if (wwwAuthenticate) {

            // Parse HTTP WWW-Authenticate header

            var wwwAttributes = hawk.utils.parseAuthorizationHeader(wwwAuthenticate, ['ts', 'tsm', 'error']);
            if (!wwwAttributes) {
                return false;
            }

            if (wwwAttributes.ts) {
                var tsm = hawk.crypto.calculateTsMac(wwwAttributes.ts, credentials);
                if (tsm !== wwwAttributes.tsm) {
                    return false;
                }

                hawk.utils.setNtpOffset(wwwAttributes.ts - Math.floor((new Date()).getTime() / 1000));     // Keep offset at 1 second precision
            }
        }

        // Parse HTTP Server-Authorization header

        var serverAuthorization = getHeader('server-authorization');
        if (!serverAuthorization &&
            !options.required) {

            return true;
        }

        var attributes = hawk.utils.parseAuthorizationHeader(serverAuthorization, ['mac', 'ext', 'hash']);
        if (!attributes) {
            return false;
        }

        var modArtifacts = {
            ts: artifacts.ts,
            nonce: artifacts.nonce,
            method: artifacts.method,
            resource: artifacts.resource,
            host: artifacts.host,
            port: artifacts.port,
            hash: attributes.hash,
            ext: attributes.ext,
            app: artifacts.app,
            dlg: artifacts.dlg
        };

        var mac = hawk.crypto.calculateMac('response', credentials, modArtifacts);
        if (mac !== attributes.mac) {
            return false;
        }

        if (!options.payload &&
            options.payload !== '') {

            return true;
        }

        if (!attributes.hash) {
            return false;
        }

        var calculatedHash = hawk.crypto.calculatePayloadHash(options.payload, credentials.algorithm, getHeader('content-type'));
        return (calculatedHash === attributes.hash);
    },

    message: function (host, port, message, options) {

        // Validate inputs

        if (!host || typeof host !== 'string' ||
            !port || typeof port !== 'number' ||
            message === null || message === undefined || typeof message !== 'string' ||
            !options || typeof options !== 'object') {

            return null;
        }

        // Application time

        var timestamp = options.timestamp || hawk.utils.now(options.localtimeOffsetMsec);

        // Validate credentials

        var credentials = options.credentials;
        if (!credentials ||
            !credentials.id ||
            !credentials.key ||
            !credentials.algorithm) {

            // Invalid credential object
            return null;
        }

        if (hawk.crypto.algorithms.indexOf(credentials.algorithm) === -1) {
            return null;
        }

        // Calculate signature

        var artifacts = {
            ts: timestamp,
            nonce: options.nonce || hawk.utils.randomString(6),
            host: host,
            port: port,
            hash: hawk.crypto.calculatePayloadHash(message, credentials.algorithm)
        };

        // Construct authorization

        var result = {
            id: credentials.id,
            ts: artifacts.ts,
            nonce: artifacts.nonce,
            hash: artifacts.hash,
            mac: hawk.crypto.calculateMac('message', credentials, artifacts)
        };

        return result;
    },

    authenticateTimestamp: function (message, credentials, updateClock) {           // updateClock defaults to true

        var tsm = hawk.crypto.calculateTsMac(message.ts, credentials);
        if (tsm !== message.tsm) {
            return false;
        }

        if (updateClock !== false) {
            hawk.utils.setNtpOffset(message.ts - Math.floor((new Date()).getTime() / 1000));    // Keep offset at 1 second precision
        }

        return true;
    }
};


hawk.crypto = {

    headerVersion: '1',

    algorithms: ['sha1', 'sha256'],

    calculateMac: function (type, credentials, options) {

        var normalized = hawk.crypto.generateNormalizedString(type, options);

        var hmac = CryptoJS['Hmac' + credentials.algorithm.toUpperCase()](normalized, credentials.key);
        return hmac.toString(CryptoJS.enc.Base64);
    },

    generateNormalizedString: function (type, options) {

        var normalized = 'hawk.' + hawk.crypto.headerVersion + '.' + type + '\n' +
                         options.ts + '\n' +
                         options.nonce + '\n' +
                         (options.method || '').toUpperCase() + '\n' +
                         (options.resource || '') + '\n' +
                         options.host.toLowerCase() + '\n' +
                         options.port + '\n' +
                         (options.hash || '') + '\n';

        if (options.ext) {
            normalized += options.ext.replace('\\', '\\\\').replace('\n', '\\n');
        }

        normalized += '\n';

        if (options.app) {
            normalized += options.app + '\n' +
                          (options.dlg || '') + '\n';
        }

        return normalized;
    },

    calculatePayloadHash: function (payload, algorithm, contentType) {

        var hash = CryptoJS.algo[algorithm.toUpperCase()].create();
        hash.update('hawk.' + hawk.crypto.headerVersion + '.payload\n');
        hash.update(hawk.utils.parseContentType(contentType) + '\n');
        hash.update(payload);
        hash.update('\n');
        return hash.finalize().toString(CryptoJS.enc.Base64);
    },

    calculateTsMac: function (ts, credentials) {

        var hash = CryptoJS['Hmac' + credentials.algorithm.toUpperCase()]('hawk.' + hawk.crypto.headerVersion + '.ts\n' + ts + '\n', credentials.key);
        return hash.toString(CryptoJS.enc.Base64);
    }
};


// localStorage compatible interface

hawk.internals.LocalStorage = function () {

    this._cache = {};
    this.length = 0;

    this.getItem = function (key) {

        return this._cache.hasOwnProperty(key) ? String(this._cache[key]) : null;
    };

    this.setItem = function (key, value) {

        this._cache[key] = String(value);
        this.length = Object.keys(this._cache).length;
    };

    this.removeItem = function (key) {

        delete this._cache[key];
        this.length = Object.keys(this._cache).length;
    };

    this.clear = function () {

        this._cache = {};
        this.length = 0;
    };

    this.key = function (i) {

        return Object.keys(this._cache)[i || 0];
    };
};


hawk.utils = {

    storage: new hawk.internals.LocalStorage(),

    setStorage: function (storage) {

        var ntpOffset = hawk.utils.storage.getItem('hawk_ntp_offset');
        hawk.utils.storage = storage;
        if (ntpOffset) {
            hawk.utils.setNtpOffset(ntpOffset);
        }
    },

    setNtpOffset: function (offset) {

        try {
            hawk.utils.storage.setItem('hawk_ntp_offset', offset);
        }
        catch (err) {
            console.error('[hawk] could not write to storage.');
            console.error(err);
        }
    },

    getNtpOffset: function () {

        var offset = hawk.utils.storage.getItem('hawk_ntp_offset');
        if (!offset) {
            return 0;
        }

        return parseInt(offset, 10);
    },

    now: function (localtimeOffsetMsec) {

        return Math.floor(((new Date()).getTime() + (localtimeOffsetMsec || 0)) / 1000) + hawk.utils.getNtpOffset();
    },

    escapeHeaderAttribute: function (attribute) {

        return attribute.replace(/\\/g, '\\\\').replace(/\"/g, '\\"');
    },

    parseContentType: function (header) {

        if (!header) {
            return '';
        }

        return header.split(';')[0].replace(/^\s+|\s+$/g, '').toLowerCase();
    },

    parseAuthorizationHeader: function (header, keys) {

        if (!header) {
            return null;
        }

        var headerParts = header.match(/^(\w+)(?:\s+(.*))?$/);       // Header: scheme[ something]
        if (!headerParts) {
            return null;
        }

        var scheme = headerParts[1];
        if (scheme.toLowerCase() !== 'hawk') {
            return null;
        }

        var attributesString = headerParts[2];
        if (!attributesString) {
            return null;
        }

        var attributes = {};
        var verify = attributesString.replace(/(\w+)="([^"\\]*)"\s*(?:,\s*|$)/g, function ($0, $1, $2) {

            // Check valid attribute names

            if (keys.indexOf($1) === -1) {
                return;
            }

            // Allowed attribute value characters: !#$%&'()*+,-./:;<=>?@[]^_`{|}~ and space, a-z, A-Z, 0-9

            if ($2.match(/^[ \w\!#\$%&'\(\)\*\+,\-\.\/\:;<\=>\?@\[\]\^`\{\|\}~]+$/) === null) {
                return;
            }

            // Check for duplicates

            if (attributes.hasOwnProperty($1)) {
                return;
            }

            attributes[$1] = $2;
            return '';
        });

        if (verify !== '') {
            return null;
        }

        return attributes;
    },

    randomString: function (size) {

        var randomSource = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
        var len = randomSource.length;

        var result = [];
        for (var i = 0; i < size; ++i) {
            result[i] = randomSource[Math.floor(Math.random() * len)];
        }

        return result.join('');
    },

    parseUri: function (input) {

        // Based on: parseURI 1.2.2
        // http://blog.stevenlevithan.com/archives/parseuri
        // (c) Steven Levithan <stevenlevithan.com>
        // MIT License

        var keys = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'hostname', 'port', 'resource', 'relative', 'pathname', 'directory', 'file', 'query', 'fragment'];

        var uriRegex = /^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?))?(((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?)(?:#(.*))?)/;
        var uriByNumber = input.match(uriRegex);
        var uri = {};

        for (var i = 0, il = keys.length; i < il; ++i) {
            uri[keys[i]] = uriByNumber[i] || '';
        }

        if (uri.port === '') {
            uri.port = (uri.protocol.toLowerCase() === 'http' ? '80' : (uri.protocol.toLowerCase() === 'https' ? '443' : ''));
        }

        return uri;
    },

    base64urlEncode: function (value) {

        var wordArray = CryptoJS.enc.Utf8.parse(value);
        var encoded = CryptoJS.enc.Base64.stringify(wordArray);
        return encoded.replace(/\+/g, '-').replace(/\//g, '_').replace(/\=/g, '');
    }
};


// $lab:coverage:off$
/* eslint-disable */

// Based on: Crypto-JS v3.1.2
// Copyright (c) 2009-2013, Jeff Mott. All rights reserved.
// http://code.google.com/p/crypto-js/
// http://code.google.com/p/crypto-js/wiki/License

var CryptoJS = CryptoJS || function (h, r) { var k = {}, l = k.lib = {}, n = function () { }, f = l.Base = { extend: function (a) { n.prototype = this; var b = new n; a && b.mixIn(a); b.hasOwnProperty("init") || (b.init = function () { b.$super.init.apply(this, arguments) }); b.init.prototype = b; b.$super = this; return b }, create: function () { var a = this.extend(); a.init.apply(a, arguments); return a }, init: function () { }, mixIn: function (a) { for (var b in a) a.hasOwnProperty(b) && (this[b] = a[b]); a.hasOwnProperty("toString") && (this.toString = a.toString) }, clone: function () { return this.init.prototype.extend(this) } }, j = l.WordArray = f.extend({ init: function (a, b) { a = this.words = a || []; this.sigBytes = b != r ? b : 4 * a.length }, toString: function (a) { return (a || s).stringify(this) }, concat: function (a) { var b = this.words, d = a.words, c = this.sigBytes; a = a.sigBytes; this.clamp(); if (c % 4) for (var e = 0; e < a; e++) b[c + e >>> 2] |= (d[e >>> 2] >>> 24 - 8 * (e % 4) & 255) << 24 - 8 * ((c + e) % 4); else if (65535 < d.length) for (e = 0; e < a; e += 4) b[c + e >>> 2] = d[e >>> 2]; else b.push.apply(b, d); this.sigBytes += a; return this }, clamp: function () { var a = this.words, b = this.sigBytes; a[b >>> 2] &= 4294967295 << 32 - 8 * (b % 4); a.length = h.ceil(b / 4) }, clone: function () { var a = f.clone.call(this); a.words = this.words.slice(0); return a }, random: function (a) { for (var b = [], d = 0; d < a; d += 4) b.push(4294967296 * h.random() | 0); return new j.init(b, a) } }), m = k.enc = {}, s = m.Hex = { stringify: function (a) { var b = a.words; a = a.sigBytes; for (var d = [], c = 0; c < a; c++) { var e = b[c >>> 2] >>> 24 - 8 * (c % 4) & 255; d.push((e >>> 4).toString(16)); d.push((e & 15).toString(16)) } return d.join("") }, parse: function (a) { for (var b = a.length, d = [], c = 0; c < b; c += 2) d[c >>> 3] |= parseInt(a.substr(c, 2), 16) << 24 - 4 * (c % 8); return new j.init(d, b / 2) } }, p = m.Latin1 = { stringify: function (a) { var b = a.words; a = a.sigBytes; for (var d = [], c = 0; c < a; c++) d.push(String.fromCharCode(b[c >>> 2] >>> 24 - 8 * (c % 4) & 255)); return d.join("") }, parse: function (a) { for (var b = a.length, d = [], c = 0; c < b; c++) d[c >>> 2] |= (a.charCodeAt(c) & 255) << 24 - 8 * (c % 4); return new j.init(d, b) } }, t = m.Utf8 = { stringify: function (a) { try { return decodeURIComponent(escape(p.stringify(a))) } catch (b) { throw Error("Malformed UTF-8 data"); } }, parse: function (a) { return p.parse(unescape(encodeURIComponent(a))) } }, q = l.BufferedBlockAlgorithm = f.extend({ reset: function () { this._data = new j.init; this._nDataBytes = 0 }, _append: function (a) { "string" == typeof a && (a = t.parse(a)); this._data.concat(a); this._nDataBytes += a.sigBytes }, _process: function (a) { var b = this._data, d = b.words, c = b.sigBytes, e = this.blockSize, f = c / (4 * e), f = a ? h.ceil(f) : h.max((f | 0) - this._minBufferSize, 0); a = f * e; c = h.min(4 * a, c); if (a) { for (var g = 0; g < a; g += e) this._doProcessBlock(d, g); g = d.splice(0, a); b.sigBytes -= c } return new j.init(g, c) }, clone: function () { var a = f.clone.call(this); a._data = this._data.clone(); return a }, _minBufferSize: 0 }); l.Hasher = q.extend({ cfg: f.extend(), init: function (a) { this.cfg = this.cfg.extend(a); this.reset() }, reset: function () { q.reset.call(this); this._doReset() }, update: function (a) { this._append(a); this._process(); return this }, finalize: function (a) { a && this._append(a); return this._doFinalize() }, blockSize: 16, _createHelper: function (a) { return function (b, d) { return (new a.init(d)).finalize(b) } }, _createHmacHelper: function (a) { return function (b, d) { return (new u.HMAC.init(a, d)).finalize(b) } } }); var u = k.algo = {}; return k }(Math);
(function () { var k = CryptoJS, b = k.lib, m = b.WordArray, l = b.Hasher, d = [], b = k.algo.SHA1 = l.extend({ _doReset: function () { this._hash = new m.init([1732584193, 4023233417, 2562383102, 271733878, 3285377520]) }, _doProcessBlock: function (n, p) { for (var a = this._hash.words, e = a[0], f = a[1], h = a[2], j = a[3], b = a[4], c = 0; 80 > c; c++) { if (16 > c) d[c] = n[p + c] | 0; else { var g = d[c - 3] ^ d[c - 8] ^ d[c - 14] ^ d[c - 16]; d[c] = g << 1 | g >>> 31 } g = (e << 5 | e >>> 27) + b + d[c]; g = 20 > c ? g + ((f & h | ~f & j) + 1518500249) : 40 > c ? g + ((f ^ h ^ j) + 1859775393) : 60 > c ? g + ((f & h | f & j | h & j) - 1894007588) : g + ((f ^ h ^ j) - 899497514); b = j; j = h; h = f << 30 | f >>> 2; f = e; e = g } a[0] = a[0] + e | 0; a[1] = a[1] + f | 0; a[2] = a[2] + h | 0; a[3] = a[3] + j | 0; a[4] = a[4] + b | 0 }, _doFinalize: function () { var b = this._data, d = b.words, a = 8 * this._nDataBytes, e = 8 * b.sigBytes; d[e >>> 5] |= 128 << 24 - e % 32; d[(e + 64 >>> 9 << 4) + 14] = Math.floor(a / 4294967296); d[(e + 64 >>> 9 << 4) + 15] = a; b.sigBytes = 4 * d.length; this._process(); return this._hash }, clone: function () { var b = l.clone.call(this); b._hash = this._hash.clone(); return b } }); k.SHA1 = l._createHelper(b); k.HmacSHA1 = l._createHmacHelper(b) })();
(function (k) { for (var g = CryptoJS, h = g.lib, v = h.WordArray, j = h.Hasher, h = g.algo, s = [], t = [], u = function (q) { return 4294967296 * (q - (q | 0)) | 0 }, l = 2, b = 0; 64 > b;) { var d; a: { d = l; for (var w = k.sqrt(d), r = 2; r <= w; r++) if (!(d % r)) { d = !1; break a } d = !0 } d && (8 > b && (s[b] = u(k.pow(l, 0.5))), t[b] = u(k.pow(l, 1 / 3)), b++); l++ } var n = [], h = h.SHA256 = j.extend({ _doReset: function () { this._hash = new v.init(s.slice(0)) }, _doProcessBlock: function (q, h) { for (var a = this._hash.words, c = a[0], d = a[1], b = a[2], k = a[3], f = a[4], g = a[5], j = a[6], l = a[7], e = 0; 64 > e; e++) { if (16 > e) n[e] = q[h + e] | 0; else { var m = n[e - 15], p = n[e - 2]; n[e] = ((m << 25 | m >>> 7) ^ (m << 14 | m >>> 18) ^ m >>> 3) + n[e - 7] + ((p << 15 | p >>> 17) ^ (p << 13 | p >>> 19) ^ p >>> 10) + n[e - 16] } m = l + ((f << 26 | f >>> 6) ^ (f << 21 | f >>> 11) ^ (f << 7 | f >>> 25)) + (f & g ^ ~f & j) + t[e] + n[e]; p = ((c << 30 | c >>> 2) ^ (c << 19 | c >>> 13) ^ (c << 10 | c >>> 22)) + (c & d ^ c & b ^ d & b); l = j; j = g; g = f; f = k + m | 0; k = b; b = d; d = c; c = m + p | 0 } a[0] = a[0] + c | 0; a[1] = a[1] + d | 0; a[2] = a[2] + b | 0; a[3] = a[3] + k | 0; a[4] = a[4] + f | 0; a[5] = a[5] + g | 0; a[6] = a[6] + j | 0; a[7] = a[7] + l | 0 }, _doFinalize: function () { var d = this._data, b = d.words, a = 8 * this._nDataBytes, c = 8 * d.sigBytes; b[c >>> 5] |= 128 << 24 - c % 32; b[(c + 64 >>> 9 << 4) + 14] = k.floor(a / 4294967296); b[(c + 64 >>> 9 << 4) + 15] = a; d.sigBytes = 4 * b.length; this._process(); return this._hash }, clone: function () { var b = j.clone.call(this); b._hash = this._hash.clone(); return b } }); g.SHA256 = j._createHelper(h); g.HmacSHA256 = j._createHmacHelper(h) })(Math);
(function () { var c = CryptoJS, k = c.enc.Utf8; c.algo.HMAC = c.lib.Base.extend({ init: function (a, b) { a = this._hasher = new a.init; "string" == typeof b && (b = k.parse(b)); var c = a.blockSize, e = 4 * c; b.sigBytes > e && (b = a.finalize(b)); b.clamp(); for (var f = this._oKey = b.clone(), g = this._iKey = b.clone(), h = f.words, j = g.words, d = 0; d < c; d++) h[d] ^= 1549556828, j[d] ^= 909522486; f.sigBytes = g.sigBytes = e; this.reset() }, reset: function () { var a = this._hasher; a.reset(); a.update(this._iKey) }, update: function (a) { this._hasher.update(a); return this }, finalize: function (a) { var b = this._hasher; a = b.finalize(a); b.reset(); return b.finalize(this._oKey.clone().concat(a)) } }) })();
(function () { var h = CryptoJS, j = h.lib.WordArray; h.enc.Base64 = { stringify: function (b) { var e = b.words, f = b.sigBytes, c = this._map; b.clamp(); b = []; for (var a = 0; a < f; a += 3) for (var d = (e[a >>> 2] >>> 24 - 8 * (a % 4) & 255) << 16 | (e[a + 1 >>> 2] >>> 24 - 8 * ((a + 1) % 4) & 255) << 8 | e[a + 2 >>> 2] >>> 24 - 8 * ((a + 2) % 4) & 255, g = 0; 4 > g && a + 0.75 * g < f; g++) b.push(c.charAt(d >>> 6 * (3 - g) & 63)); if (e = c.charAt(64)) for (; b.length % 4;) b.push(e); return b.join("") }, parse: function (b) { var e = b.length, f = this._map, c = f.charAt(64); c && (c = b.indexOf(c), -1 != c && (e = c)); for (var c = [], a = 0, d = 0; d < e; d++) if (d % 4) { var g = f.indexOf(b.charAt(d - 1)) << 2 * (d % 4), h = f.indexOf(b.charAt(d)) >>> 6 - 2 * (d % 4); c[a >>> 2] |= (g | h) << 24 - 8 * (a % 4); a++ } return j.create(c, a) }, _map: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=" } })();

hawk.crypto.internals = CryptoJS;


// Export if used as a module

if (typeof module !== 'undefined' && module.exports) {
    module.exports = hawk;
}

/* eslint-enable */
// $lab:coverage:on$

},{}],442:[function(require,module,exports){
// Copyright 2015 Joyent, Inc.

var parser = require('./parser');
var signer = require('./signer');
var verify = require('./verify');
var util = require('./util');



///--- API

module.exports = {

  parse: parser.parseRequest,
  parseRequest: parser.parseRequest,

  sign: signer.signRequest,
  signRequest: signer.signRequest,

  sshKeyToPEM: util.sshKeyToPEM,
  sshKeyFingerprint: util.fingerprint,
  pemToRsaSSHKey: util.pemToRsaSSHKey,

  verify: verify.verifySignature,
  verifySignature: verify.verifySignature,
  verifyHMAC: verify.verifyHMAC
};

},{"./parser":443,"./signer":444,"./util":445,"./verify":446}],443:[function(require,module,exports){
// Copyright 2012 Joyent, Inc.  All rights reserved.

var assert = require('assert-plus');
var util = require('util');



///--- Globals

var Algorithms = {
  'rsa-sha1': true,
  'rsa-sha256': true,
  'rsa-sha512': true,
  'dsa-sha1': true,
  'hmac-sha1': true,
  'hmac-sha256': true,
  'hmac-sha512': true
};

var State = {
  New: 0,
  Params: 1
};

var ParamsState = {
  Name: 0,
  Quote: 1,
  Value: 2,
  Comma: 3
};



///--- Specific Errors

function HttpSignatureError(message, caller) {
  if (Error.captureStackTrace)
    Error.captureStackTrace(this, caller || HttpSignatureError);

  this.message = message;
  this.name = caller.name;
}
util.inherits(HttpSignatureError, Error);

function ExpiredRequestError(message) {
  HttpSignatureError.call(this, message, ExpiredRequestError);
}
util.inherits(ExpiredRequestError, HttpSignatureError);


function InvalidHeaderError(message) {
  HttpSignatureError.call(this, message, InvalidHeaderError);
}
util.inherits(InvalidHeaderError, HttpSignatureError);


function InvalidParamsError(message) {
  HttpSignatureError.call(this, message, InvalidParamsError);
}
util.inherits(InvalidParamsError, HttpSignatureError);


function MissingHeaderError(message) {
  HttpSignatureError.call(this, message, MissingHeaderError);
}
util.inherits(MissingHeaderError, HttpSignatureError);



///--- Exported API

module.exports = {

  /**
   * Parses the 'Authorization' header out of an http.ServerRequest object.
   *
   * Note that this API will fully validate the Authorization header, and throw
   * on any error.  It will not however check the signature, or the keyId format
   * as those are specific to your environment.  You can use the options object
   * to pass in extra constraints.
   *
   * As a response object you can expect this:
   *
   *     {
   *       "scheme": "Signature",
   *       "params": {
   *         "keyId": "foo",
   *         "algorithm": "rsa-sha256",
   *         "headers": [
   *           "date" or "x-date",
   *           "content-md5"
   *         ],
   *         "signature": "base64"
   *       },
   *       "signingString": "ready to be passed to crypto.verify()"
   *     }
   *
   * @param {Object} request an http.ServerRequest.
   * @param {Object} options an optional options object with:
   *                   - clockSkew: allowed clock skew in seconds (default 300).
   *                   - headers: required header names (def: date or x-date)
   *                   - algorithms: algorithms to support (default: all).
   * @return {Object} parsed out object (see above).
   * @throws {TypeError} on invalid input.
   * @throws {InvalidHeaderError} on an invalid Authorization header error.
   * @throws {InvalidParamsError} if the params in the scheme are invalid.
   * @throws {MissingHeaderError} if the params indicate a header not present,
   *                              either in the request headers from the params,
   *                              or not in the params from a required header
   *                              in options.
   * @throws {ExpiredRequestError} if the value of date or x-date exceeds skew.
   */
  parseRequest: function parseRequest(request, options) {
    assert.object(request, 'request');
    assert.object(request.headers, 'request.headers');
    if (options === undefined) {
      options = {};
    }
    if (options.headers === undefined) {
      options.headers = [request.headers['x-date'] ? 'x-date' : 'date'];
    }
    assert.object(options, 'options');
    assert.arrayOfString(options.headers, 'options.headers');
    assert.optionalNumber(options.clockSkew, 'options.clockSkew');

    if (!request.headers.authorization)
      throw new MissingHeaderError('no authorization header present in ' +
                                   'the request');

    options.clockSkew = options.clockSkew || 300;


    var i = 0;
    var state = State.New;
    var substate = ParamsState.Name;
    var tmpName = '';
    var tmpValue = '';

    var parsed = {
      scheme: '',
      params: {},
      signingString: '',

      get algorithm() {
        return this.params.algorithm.toUpperCase();
      },

      get keyId() {
        return this.params.keyId;
      }

    };

    var authz = request.headers.authorization;
    for (i = 0; i < authz.length; i++) {
      var c = authz.charAt(i);

      switch (Number(state)) {

      case State.New:
        if (c !== ' ') parsed.scheme += c;
        else state = State.Params;
        break;

      case State.Params:
        switch (Number(substate)) {

        case ParamsState.Name:
          var code = c.charCodeAt(0);
          // restricted name of A-Z / a-z
          if ((code >= 0x41 && code <= 0x5a) || // A-Z
              (code >= 0x61 && code <= 0x7a)) { // a-z
            tmpName += c;
          } else if (c === '=') {
            if (tmpName.length === 0)
              throw new InvalidHeaderError('bad param format');
            substate = ParamsState.Quote;
          } else {
            throw new InvalidHeaderError('bad param format');
          }
          break;

        case ParamsState.Quote:
          if (c === '"') {
            tmpValue = '';
            substate = ParamsState.Value;
          } else {
            throw new InvalidHeaderError('bad param format');
          }
          break;

        case ParamsState.Value:
          if (c === '"') {
            parsed.params[tmpName] = tmpValue;
            substate = ParamsState.Comma;
          } else {
            tmpValue += c;
          }
          break;

        case ParamsState.Comma:
          if (c === ',') {
            tmpName = '';
            substate = ParamsState.Name;
          } else {
            throw new InvalidHeaderError('bad param format');
          }
          break;

        default:
          throw new Error('Invalid substate');
        }
        break;

      default:
        throw new Error('Invalid substate');
      }

    }

    if (!parsed.params.headers || parsed.params.headers === '') {
      if (request.headers['x-date']) {
        parsed.params.headers = ['x-date'];
      } else {
        parsed.params.headers = ['date'];
      }
    } else {
      parsed.params.headers = parsed.params.headers.split(' ');
    }

    // Minimally validate the parsed object
    if (!parsed.scheme || parsed.scheme !== 'Signature')
      throw new InvalidHeaderError('scheme was not "Signature"');

    if (!parsed.params.keyId)
      throw new InvalidHeaderError('keyId was not specified');

    if (!parsed.params.algorithm)
      throw new InvalidHeaderError('algorithm was not specified');

    if (!parsed.params.signature)
      throw new InvalidHeaderError('signature was not specified');

    // Check the algorithm against the official list
    parsed.params.algorithm = parsed.params.algorithm.toLowerCase();
    if (!Algorithms[parsed.params.algorithm])
      throw new InvalidParamsError(parsed.params.algorithm +
                                   ' is not supported');

    // Build the signingString
    for (i = 0; i < parsed.params.headers.length; i++) {
      var h = parsed.params.headers[i].toLowerCase();
      parsed.params.headers[i] = h;

      if (h !== 'request-line') {
        var value = request.headers[h];
        if (!value)
          throw new MissingHeaderError(h + ' was not in the request');
        parsed.signingString += h + ': ' + value;
      } else {
        parsed.signingString +=
          request.method + ' ' + request.url + ' HTTP/' + request.httpVersion;
      }

      if ((i + 1) < parsed.params.headers.length)
        parsed.signingString += '\n';
    }

    // Check against the constraints
    var date;
    if (request.headers.date || request.headers['x-date']) {
        if (request.headers['x-date']) {
          date = new Date(request.headers['x-date']);
        } else {
          date = new Date(request.headers.date);
        }
      var now = new Date();
      var skew = Math.abs(now.getTime() - date.getTime());

      if (skew > options.clockSkew * 1000) {
        throw new ExpiredRequestError('clock skew of ' +
                                      (skew / 1000) +
                                      's was greater than ' +
                                      options.clockSkew + 's');
      }
    }

    options.headers.forEach(function (hdr) {
      // Remember that we already checked any headers in the params
      // were in the request, so if this passes we're good.
      if (parsed.params.headers.indexOf(hdr) < 0)
        throw new MissingHeaderError(hdr + ' was not a signed header');
    });

    if (options.algorithms) {
      if (options.algorithms.indexOf(parsed.params.algorithm) === -1)
        throw new InvalidParamsError(parsed.params.algorithm +
                                     ' is not a supported algorithm');
    }

    return parsed;
  }

};

},{"assert-plus":453,"util":247}],444:[function(require,module,exports){
// Copyright 2012 Joyent, Inc.  All rights reserved.

var assert = require('assert-plus');
var crypto = require('crypto');
var http = require('http');

var sprintf = require('util').format;



///--- Globals

var Algorithms = {
  'rsa-sha1': true,
  'rsa-sha256': true,
  'rsa-sha512': true,
  'dsa-sha1': true,
  'hmac-sha1': true,
  'hmac-sha256': true,
  'hmac-sha512': true
};

var Authorization =
  'Signature keyId="%s",algorithm="%s",headers="%s",signature="%s"';



///--- Specific Errors

function MissingHeaderError(message) {
    this.name = 'MissingHeaderError';
    this.message = message;
    this.stack = (new Error()).stack;
}
MissingHeaderError.prototype = new Error();


function InvalidAlgorithmError(message) {
    this.name = 'InvalidAlgorithmError';
    this.message = message;
    this.stack = (new Error()).stack;
}
InvalidAlgorithmError.prototype = new Error();



///--- Internal Functions

function _pad(val) {
  if (parseInt(val, 10) < 10) {
    val = '0' + val;
  }
  return val;
}


function _rfc1123() {
  var date = new Date();

  var months = ['Jan',
                'Feb',
                'Mar',
                'Apr',
                'May',
                'Jun',
                'Jul',
                'Aug',
                'Sep',
                'Oct',
                'Nov',
                'Dec'];
  var days = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
  return days[date.getUTCDay()] + ', ' +
    _pad(date.getUTCDate()) + ' ' +
    months[date.getUTCMonth()] + ' ' +
    date.getUTCFullYear() + ' ' +
    _pad(date.getUTCHours()) + ':' +
    _pad(date.getUTCMinutes()) + ':' +
    _pad(date.getUTCSeconds()) +
    ' GMT';
}



///--- Exported API

module.exports = {

  /**
   * Adds an 'Authorization' header to an http.ClientRequest object.
   *
   * Note that this API will add a Date header if it's not already set. Any
   * other headers in the options.headers array MUST be present, or this
   * will throw.
   *
   * You shouldn't need to check the return type; it's just there if you want
   * to be pedantic.
   *
   * @param {Object} request an instance of http.ClientRequest.
   * @param {Object} options signing parameters object:
   *                   - {String} keyId required.
   *                   - {String} key required (either a PEM or HMAC key).
   *                   - {Array} headers optional; defaults to ['date'].
   *                   - {String} algorithm optional; defaults to 'rsa-sha256'.
   *                   - {String} httpVersion optional; defaults to '1.1'.
   * @return {Boolean} true if Authorization (and optionally Date) were added.
   * @throws {TypeError} on bad parameter types (input).
   * @throws {InvalidAlgorithmError} if algorithm was bad.
   * @throws {MissingHeaderError} if a header to be signed was specified but
   *                              was not present.
   */
  signRequest: function signRequest(request, options) {
    assert.object(request, 'request');
    assert.object(options, 'options');
    assert.optionalString(options.algorithm, 'options.algorithm');
    assert.string(options.keyId, 'options.keyId');
    assert.optionalArrayOfString(options.headers, 'options.headers');
    assert.optionalString(options.httpVersion, 'options.httpVersion');

    if (!request.getHeader('Date'))
      request.setHeader('Date', _rfc1123());
    if (!options.headers)
      options.headers = ['date'];
    if (!options.algorithm)
      options.algorithm = 'rsa-sha256';
    if (!options.httpVersion)
      options.httpVersion = '1.1';

    options.algorithm = options.algorithm.toLowerCase();

    if (!Algorithms[options.algorithm])
      throw new InvalidAlgorithmError(options.algorithm + ' is not supported');

    var i;
    var stringToSign = '';
    for (i = 0; i < options.headers.length; i++) {
      if (typeof (options.headers[i]) !== 'string')
        throw new TypeError('options.headers must be an array of Strings');

      var h = options.headers[i].toLowerCase();

      if (h !== 'request-line') {
        var value = request.getHeader(h);
        if (!value) {
          throw new MissingHeaderError(h + ' was not in the request');
        }
        stringToSign += h + ': ' + value;
      } else {
        stringToSign +=
          request.method + ' ' + request.path + ' HTTP/' + options.httpVersion;
      }

      if ((i + 1) < options.headers.length)
        stringToSign += '\n';
    }

    var alg = options.algorithm.match(/(hmac|rsa)-(\w+)/);
    var signature;
    if (alg[1] === 'hmac') {
      var hmac = crypto.createHmac(alg[2].toUpperCase(), options.key);
      hmac.update(stringToSign);
      signature = hmac.digest('base64');
    } else {
      var signer = crypto.createSign(options.algorithm.toUpperCase());
      signer.update(stringToSign);
      signature = signer.sign(options.key, 'base64');
    }

    request.setHeader('Authorization', sprintf(Authorization,
                                               options.keyId,
                                               options.algorithm,
                                               options.headers.join(' '),
                                               signature));

    return true;
  }

};

},{"assert-plus":453,"crypto":22,"http":234,"util":247}],445:[function(require,module,exports){
(function (Buffer){
// Copyright 2012 Joyent, Inc.  All rights reserved.

var assert = require('assert-plus');
var crypto = require('crypto');

var asn1 = require('asn1');
var ctype = require('ctype');



///--- Helpers

function readNext(buffer, offset) {
  var len = ctype.ruint32(buffer, 'big', offset);
  offset += 4;

  var newOffset = offset + len;

  return {
    data: buffer.slice(offset, newOffset),
    offset: newOffset
  };
}


function writeInt(writer, buffer) {
  writer.writeByte(0x02); // ASN1.Integer
  writer.writeLength(buffer.length);

  for (var i = 0; i < buffer.length; i++)
    writer.writeByte(buffer[i]);

  return writer;
}


function rsaToPEM(key) {
  var buffer;
  var der;
  var exponent;
  var i;
  var modulus;
  var newKey = '';
  var offset = 0;
  var type;
  var tmp;

  try {
    buffer = new Buffer(key.split(' ')[1], 'base64');

    tmp = readNext(buffer, offset);
    type = tmp.data.toString();
    offset = tmp.offset;

    if (type !== 'ssh-rsa')
      throw new Error('Invalid ssh key type: ' + type);

    tmp = readNext(buffer, offset);
    exponent = tmp.data;
    offset = tmp.offset;

    tmp = readNext(buffer, offset);
    modulus = tmp.data;
  } catch (e) {
    throw new Error('Invalid ssh key: ' + key);
  }

  // DER is a subset of BER
  der = new asn1.BerWriter();

  der.startSequence();

  der.startSequence();
  der.writeOID('1.2.840.113549.1.1.1');
  der.writeNull();
  der.endSequence();

  der.startSequence(0x03); // bit string
  der.writeByte(0x00);

  // Actual key
  der.startSequence();
  writeInt(der, modulus);
  writeInt(der, exponent);
  der.endSequence();

  // bit string
  der.endSequence();

  der.endSequence();

  tmp = der.buffer.toString('base64');
  for (i = 0; i < tmp.length; i++) {
    if ((i % 64) === 0)
      newKey += '\n';
    newKey += tmp.charAt(i);
  }

  if (!/\\n$/.test(newKey))
    newKey += '\n';

  return '-----BEGIN PUBLIC KEY-----' + newKey + '-----END PUBLIC KEY-----\n';
}


function dsaToPEM(key) {
  var buffer;
  var offset = 0;
  var tmp;
  var der;
  var newKey = '';

  var type;
  var p;
  var q;
  var g;
  var y;

  try {
    buffer = new Buffer(key.split(' ')[1], 'base64');

    tmp = readNext(buffer, offset);
    type = tmp.data.toString();
    offset = tmp.offset;

    /* JSSTYLED */
    if (!/^ssh-ds[as].*/.test(type))
      throw new Error('Invalid ssh key type: ' + type);

    tmp = readNext(buffer, offset);
    p = tmp.data;
    offset = tmp.offset;

    tmp = readNext(buffer, offset);
    q = tmp.data;
    offset = tmp.offset;

    tmp = readNext(buffer, offset);
    g = tmp.data;
    offset = tmp.offset;

    tmp = readNext(buffer, offset);
    y = tmp.data;
  } catch (e) {
    console.log(e.stack);
    throw new Error('Invalid ssh key: ' + key);
  }

  // DER is a subset of BER
  der = new asn1.BerWriter();

  der.startSequence();

  der.startSequence();
  der.writeOID('1.2.840.10040.4.1');

  der.startSequence();
  writeInt(der, p);
  writeInt(der, q);
  writeInt(der, g);
  der.endSequence();

  der.endSequence();

  der.startSequence(0x03); // bit string
  der.writeByte(0x00);
  writeInt(der, y);
  der.endSequence();

  der.endSequence();

  tmp = der.buffer.toString('base64');
  for (var i = 0; i < tmp.length; i++) {
    if ((i % 64) === 0)
      newKey += '\n';
    newKey += tmp.charAt(i);
  }

  if (!/\\n$/.test(newKey))
    newKey += '\n';

  return '-----BEGIN PUBLIC KEY-----' + newKey + '-----END PUBLIC KEY-----\n';
}


///--- API

module.exports = {

  /**
   * Converts an OpenSSH public key (rsa only) to a PKCS#8 PEM file.
   *
   * The intent of this module is to interoperate with OpenSSL only,
   * specifically the node crypto module's `verify` method.
   *
   * @param {String} key an OpenSSH public key.
   * @return {String} PEM encoded form of the RSA public key.
   * @throws {TypeError} on bad input.
   * @throws {Error} on invalid ssh key formatted data.
   */
  sshKeyToPEM: function sshKeyToPEM(key) {
    assert.string(key, 'ssh_key');

    /* JSSTYLED */
    if (/^ssh-rsa.*/.test(key))
      return rsaToPEM(key);

    /* JSSTYLED */
    if (/^ssh-ds[as].*/.test(key))
      return dsaToPEM(key);

    throw new Error('Only RSA and DSA public keys are allowed');
  },


  /**
   * Generates an OpenSSH fingerprint from an ssh public key.
   *
   * @param {String} key an OpenSSH public key.
   * @return {String} key fingerprint.
   * @throws {TypeError} on bad input.
   * @throws {Error} if what you passed doesn't look like an ssh public key.
   */
  fingerprint: function fingerprint(key) {
    assert.string(key, 'ssh_key');

    var pieces = key.split(' ');
    if (!pieces || !pieces.length || pieces.length < 2)
      throw new Error('invalid ssh key');

    var data = new Buffer(pieces[1], 'base64');

    var hash = crypto.createHash('md5');
    hash.update(data);
    var digest = hash.digest('hex');

    var fp = '';
    for (var i = 0; i < digest.length; i++) {
      if (i && i % 2 === 0)
        fp += ':';

      fp += digest[i];
    }

    return fp;
  },

  /**
   * Converts a PKGCS#8 PEM file to an OpenSSH public key (rsa)
   *
   * The reverse of the above function.
   */
  pemToRsaSSHKey: function pemToRsaSSHKey(pem, comment) {
    assert.equal('string', typeof (pem), 'typeof pem');

    // chop off the BEGIN PUBLIC KEY and END PUBLIC KEY portion
    var cleaned = pem.split('\n').slice(1, -2).join('');

    var buf = new Buffer(cleaned, 'base64');

    var der = new asn1.BerReader(buf);

    der.readSequence();
    der.readSequence();

    var oid = der.readOID();
    assert.equal(oid, '1.2.840.113549.1.1.1', 'pem not in RSA format');

    // Null -- XXX this probably isn't good practice
    der.readByte();
    der.readByte();

    // bit string sequence
    der.readSequence(0x03);
    der.readByte();
    der.readSequence();

    // modulus
    assert.equal(der.peek(), asn1.Ber.Integer, 'modulus not an integer');
    der._offset = der.readLength(der.offset + 1);
    var modulus = der._buf.slice(der.offset, der.offset + der.length);
    der._offset += der.length;

    // exponent
    assert.equal(der.peek(), asn1.Ber.Integer, 'exponent not an integer');
    der._offset = der.readLength(der.offset + 1);
    var exponent = der._buf.slice(der.offset, der.offset + der.length);
    der._offset += der.length;

    // now, make the key
    var type = new Buffer('ssh-rsa');
    var buffer = new Buffer(4 + type.length + 4 + modulus.length +
      4 + exponent.length);
    var i = 0;
    buffer.writeUInt32BE(type.length, i);     i += 4;
    type.copy(buffer, i);                     i += type.length;
    buffer.writeUInt32BE(exponent.length, i); i += 4;
    exponent.copy(buffer, i);                 i += exponent.length;
    buffer.writeUInt32BE(modulus.length, i);  i += 4;
    modulus.copy(buffer, i);                  i += modulus.length;

    var s = (type.toString() + ' ' + buffer.toString('base64') + ' ' +
      (comment || ''));
    return s;
  }
};

}).call(this,require("buffer").Buffer)
},{"asn1":452,"assert-plus":453,"buffer":18,"crypto":22,"ctype":456}],446:[function(require,module,exports){
// Copyright 2015 Joyent, Inc.

var assert = require('assert-plus');
var crypto = require('crypto');



///--- Exported API

module.exports = {
  /**
   * Verify RSA/DSA signature against public key.  You are expected to pass in
   * an object that was returned from `parse()`.
   *
   * @param {Object} parsedSignature the object you got from `parse`.
   * @param {String} pubkey RSA/DSA private key PEM.
   * @return {Boolean} true if valid, false otherwise.
   * @throws {TypeError} if you pass in bad arguments.
   */
  verifySignature: function verifySignature(parsedSignature, pubkey) {
    assert.object(parsedSignature, 'parsedSignature');
    assert.string(pubkey, 'pubkey');

    var alg = parsedSignature.algorithm.match(/^(RSA|DSA)-(\w+)/);
    if (!alg || alg.length !== 3)
      throw new TypeError('parsedSignature: unsupported algorithm ' +
                          parsedSignature.algorithm);

    var verify = crypto.createVerify(alg[0]);
    verify.update(parsedSignature.signingString);
    return verify.verify(pubkey, parsedSignature.params.signature, 'base64');
  },

  /**
   * Verify HMAC against shared secret.  You are expected to pass in an object
   * that was returned from `parse()`.
   *
   * @param {Object} parsedSignature the object you got from `parse`.
   * @param {String} secret HMAC shared secret.
   * @return {Boolean} true if valid, false otherwise.
   * @throws {TypeError} if you pass in bad arguments.
   */
  verifyHMAC: function verifyHMAC(parsedSignature, secret) {
    assert.object(parsedSignature, 'parsedHMAC');
    assert.string(secret, 'secret');

    var alg = parsedSignature.algorithm.match(/^HMAC-(\w+)/);
    if (!alg || alg.length !== 2)
      throw new TypeError('parsedSignature: unsupported algorithm ' +
                          parsedSignature.algorithm);

    var hmac = crypto.createHmac(alg[1].toUpperCase(), secret);
    hmac.update(parsedSignature.signingString);
    return (hmac.digest('base64') === parsedSignature.params.signature);
  }
};

},{"assert-plus":453,"crypto":22}],447:[function(require,module,exports){
// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.


module.exports = {

  newInvalidAsn1Error: function(msg) {
    var e = new Error();
    e.name = 'InvalidAsn1Error';
    e.message = msg || '';
    return e;
  }

};

},{}],448:[function(require,module,exports){
// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.

var errors = require('./errors');
var types = require('./types');

var Reader = require('./reader');
var Writer = require('./writer');


///--- Exports

module.exports = {

  Reader: Reader,

  Writer: Writer

};

for (var t in types) {
  if (types.hasOwnProperty(t))
    module.exports[t] = types[t];
}
for (var e in errors) {
  if (errors.hasOwnProperty(e))
    module.exports[e] = errors[e];
}

},{"./errors":447,"./reader":449,"./types":450,"./writer":451}],449:[function(require,module,exports){
(function (Buffer){
// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.

var assert = require('assert');

var ASN1 = require('./types');
var errors = require('./errors');


///--- Globals

var newInvalidAsn1Error = errors.newInvalidAsn1Error;



///--- API

function Reader(data) {
  if (!data || !Buffer.isBuffer(data))
    throw new TypeError('data must be a node Buffer');

  this._buf = data;
  this._size = data.length;

  // These hold the "current" state
  this._len = 0;
  this._offset = 0;

  var self = this;
  this.__defineGetter__('length', function() { return self._len; });
  this.__defineGetter__('offset', function() { return self._offset; });
  this.__defineGetter__('remain', function() {
    return self._size - self._offset;
  });
  this.__defineGetter__('buffer', function() {
    return self._buf.slice(self._offset);
  });
}


/**
 * Reads a single byte and advances offset; you can pass in `true` to make this
 * a "peek" operation (i.e., get the byte, but don't advance the offset).
 *
 * @param {Boolean} peek true means don't move offset.
 * @return {Number} the next byte, null if not enough data.
 */
Reader.prototype.readByte = function(peek) {
  if (this._size - this._offset < 1)
    return null;

  var b = this._buf[this._offset] & 0xff;

  if (!peek)
    this._offset += 1;

  return b;
};


Reader.prototype.peek = function() {
  return this.readByte(true);
};


/**
 * Reads a (potentially) variable length off the BER buffer.  This call is
 * not really meant to be called directly, as callers have to manipulate
 * the internal buffer afterwards.
 *
 * As a result of this call, you can call `Reader.length`, until the
 * next thing called that does a readLength.
 *
 * @return {Number} the amount of offset to advance the buffer.
 * @throws {InvalidAsn1Error} on bad ASN.1
 */
Reader.prototype.readLength = function(offset) {
  if (offset === undefined)
    offset = this._offset;

  if (offset >= this._size)
    return null;

  var lenB = this._buf[offset++] & 0xff;
  if (lenB === null)
    return null;

  if ((lenB & 0x80) == 0x80) {
    lenB &= 0x7f;

    if (lenB == 0)
      throw newInvalidAsn1Error('Indefinite length not supported');

    if (lenB > 4)
      throw newInvalidAsn1Error('encoding too long');

    if (this._size - offset < lenB)
      return null;

    this._len = 0;
    for (var i = 0; i < lenB; i++)
      this._len = (this._len << 8) + (this._buf[offset++] & 0xff);

  } else {
    // Wasn't a variable length
    this._len = lenB;
  }

  return offset;
};


/**
 * Parses the next sequence in this BER buffer.
 *
 * To get the length of the sequence, call `Reader.length`.
 *
 * @return {Number} the sequence's tag.
 */
Reader.prototype.readSequence = function(tag) {
  var seq = this.peek();
  if (seq === null)
    return null;
  if (tag !== undefined && tag !== seq)
    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
                              ': got 0x' + seq.toString(16));

  var o = this.readLength(this._offset + 1); // stored in `length`
  if (o === null)
    return null;

  this._offset = o;
  return seq;
};


Reader.prototype.readInt = function() {
  return this._readTag(ASN1.Integer);
};


Reader.prototype.readBoolean = function() {
  return (this._readTag(ASN1.Boolean) === 0 ? false : true);
};


Reader.prototype.readEnumeration = function() {
  return this._readTag(ASN1.Enumeration);
};


Reader.prototype.readString = function(tag, retbuf) {
  if (!tag)
    tag = ASN1.OctetString;

  var b = this.peek();
  if (b === null)
    return null;

  if (b !== tag)
    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
                              ': got 0x' + b.toString(16));

  var o = this.readLength(this._offset + 1); // stored in `length`

  if (o === null)
    return null;

  if (this.length > this._size - o)
    return null;

  this._offset = o;

  if (this.length === 0)
    return '';

  var str = this._buf.slice(this._offset, this._offset + this.length);
  this._offset += this.length;

  return retbuf ? str : str.toString('utf8');
};

Reader.prototype.readOID = function(tag) {
  if (!tag)
    tag = ASN1.OID;

  var b = this.peek();
  if (b === null)
    return null;

  if (b !== tag)
    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
                              ': got 0x' + b.toString(16));

  var o = this.readLength(this._offset + 1); // stored in `length`
  if (o === null)
    return null;

  if (this.length > this._size - o)
    return null;

  this._offset = o;

  var values = [];
  var value = 0;

  for (var i = 0; i < this.length; i++) {
    var byte = this._buf[this._offset++] & 0xff;

    value <<= 7;
    value += byte & 0x7f;
    if ((byte & 0x80) == 0) {
      values.push(value);
      value = 0;
    }
  }

  value = values.shift();
  values.unshift(value % 40);
  values.unshift((value / 40) >> 0);

  return values.join('.');
};


Reader.prototype._readTag = function(tag) {
  assert.ok(tag !== undefined);

  var b = this.peek();

  if (b === null)
    return null;

  if (b !== tag)
    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
                              ': got 0x' + b.toString(16));

  var o = this.readLength(this._offset + 1); // stored in `length`
  if (o === null)
    return null;

  if (this.length > 4)
    throw newInvalidAsn1Error('Integer too long: ' + this.length);

  if (this.length > this._size - o)
    return null;
  this._offset = o;

  var fb = this._buf[this._offset++];
  var value = 0;

  value = fb & 0x7F;
  for (var i = 1; i < this.length; i++) {
    value <<= 8;
    value |= (this._buf[this._offset++] & 0xff);
  }

  if ((fb & 0x80) == 0x80)
    value = -value;

  return value;
};



///--- Exported API

module.exports = Reader;

}).call(this,{"isBuffer":require("../../../../../../../../../../../browserify/node_modules/insert-module-globals/node_modules/is-buffer/index.js")})
},{"../../../../../../../../../../../browserify/node_modules/insert-module-globals/node_modules/is-buffer/index.js":211,"./errors":447,"./types":450,"assert":3}],450:[function(require,module,exports){
// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.


module.exports = {
  EOC: 0,
  Boolean: 1,
  Integer: 2,
  BitString: 3,
  OctetString: 4,
  Null: 5,
  OID: 6,
  ObjectDescriptor: 7,
  External: 8,
  Real: 9, // float
  Enumeration: 10,
  PDV: 11,
  Utf8String: 12,
  RelativeOID: 13,
  Sequence: 16,
  Set: 17,
  NumericString: 18,
  PrintableString: 19,
  T61String: 20,
  VideotexString: 21,
  IA5String: 22,
  UTCTime: 23,
  GeneralizedTime: 24,
  GraphicString: 25,
  VisibleString: 26,
  GeneralString: 28,
  UniversalString: 29,
  CharacterString: 30,
  BMPString: 31,
  Constructor: 32,
  Context: 128
};

},{}],451:[function(require,module,exports){
(function (Buffer){
// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.

var assert = require('assert');
var ASN1 = require('./types');
var errors = require('./errors');


///--- Globals

var newInvalidAsn1Error = errors.newInvalidAsn1Error;

var DEFAULT_OPTS = {
  size: 1024,
  growthFactor: 8
};


///--- Helpers

function merge(from, to) {
  assert.ok(from);
  assert.equal(typeof(from), 'object');
  assert.ok(to);
  assert.equal(typeof(to), 'object');

  var keys = Object.getOwnPropertyNames(from);
  keys.forEach(function(key) {
    if (to[key])
      return;

    var value = Object.getOwnPropertyDescriptor(from, key);
    Object.defineProperty(to, key, value);
  });

  return to;
}



///--- API

function Writer(options) {
  options = merge(DEFAULT_OPTS, options || {});

  this._buf = new Buffer(options.size || 1024);
  this._size = this._buf.length;
  this._offset = 0;
  this._options = options;

  // A list of offsets in the buffer where we need to insert
  // sequence tag/len pairs.
  this._seq = [];

  var self = this;
  this.__defineGetter__('buffer', function() {
    if (self._seq.length)
      throw new InvalidAsn1Error(self._seq.length + ' unended sequence(s)');

    return self._buf.slice(0, self._offset);
  });
}


Writer.prototype.writeByte = function(b) {
  if (typeof(b) !== 'number')
    throw new TypeError('argument must be a Number');

  this._ensure(1);
  this._buf[this._offset++] = b;
};


Writer.prototype.writeInt = function(i, tag) {
  if (typeof(i) !== 'number')
    throw new TypeError('argument must be a Number');
  if (typeof(tag) !== 'number')
    tag = ASN1.Integer;

  var sz = 4;

  while ((((i & 0xff800000) === 0) || ((i & 0xff800000) === 0xff800000)) &&
         (sz > 1)) {
    sz--;
    i <<= 8;
  }

  if (sz > 4)
    throw new InvalidAsn1Error('BER ints cannot be > 0xffffffff');

  this._ensure(2 + sz);
  this._buf[this._offset++] = tag;
  this._buf[this._offset++] = sz;

  while (sz-- > 0) {
    this._buf[this._offset++] = ((i & 0xff000000) >> 24);
    i <<= 8;
  }

};


Writer.prototype.writeNull = function() {
  this.writeByte(ASN1.Null);
  this.writeByte(0x00);
};


Writer.prototype.writeEnumeration = function(i, tag) {
  if (typeof(i) !== 'number')
    throw new TypeError('argument must be a Number');
  if (typeof(tag) !== 'number')
    tag = ASN1.Enumeration;

  return this.writeInt(i, tag);
};


Writer.prototype.writeBoolean = function(b, tag) {
  if (typeof(b) !== 'boolean')
    throw new TypeError('argument must be a Boolean');
  if (typeof(tag) !== 'number')
    tag = ASN1.Boolean;

  this._ensure(3);
  this._buf[this._offset++] = tag;
  this._buf[this._offset++] = 0x01;
  this._buf[this._offset++] = b ? 0xff : 0x00;
};


Writer.prototype.writeString = function(s, tag) {
  if (typeof(s) !== 'string')
    throw new TypeError('argument must be a string (was: ' + typeof(s) + ')');
  if (typeof(tag) !== 'number')
    tag = ASN1.OctetString;

  var len = Buffer.byteLength(s);
  this.writeByte(tag);
  this.writeLength(len);
  if (len) {
    this._ensure(len);
    this._buf.write(s, this._offset);
    this._offset += len;
  }
};


Writer.prototype.writeBuffer = function(buf, tag) {
  if (typeof(tag) !== 'number')
    throw new TypeError('tag must be a number');
  if (!Buffer.isBuffer(buf))
    throw new TypeError('argument must be a buffer');

  this.writeByte(tag);
  this.writeLength(buf.length);
  this._ensure(buf.length);
  buf.copy(this._buf, this._offset, 0, buf.length);
  this._offset += buf.length;
};


Writer.prototype.writeStringArray = function(strings) {
  if ((!strings instanceof Array))
    throw new TypeError('argument must be an Array[String]');

  var self = this;
  strings.forEach(function(s) {
    self.writeString(s);
  });
};

// This is really to solve DER cases, but whatever for now
Writer.prototype.writeOID = function(s, tag) {
  if (typeof(s) !== 'string')
    throw new TypeError('argument must be a string');
  if (typeof(tag) !== 'number')
    tag = ASN1.OID;

  if (!/^([0-9]+\.){3,}[0-9]+$/.test(s))
    throw new Error('argument is not a valid OID string');

  function encodeOctet(bytes, octet) {
    if (octet < 128) {
        bytes.push(octet);
    } else if (octet < 16384) {
        bytes.push((octet >>> 7) | 0x80);
        bytes.push(octet & 0x7F);
    } else if (octet < 2097152) {
      bytes.push((octet >>> 14) | 0x80);
      bytes.push(((octet >>> 7) | 0x80) & 0xFF);
      bytes.push(octet & 0x7F);
    } else if (octet < 268435456) {
      bytes.push((octet >>> 21) | 0x80);
      bytes.push(((octet >>> 14) | 0x80) & 0xFF);
      bytes.push(((octet >>> 7) | 0x80) & 0xFF);
      bytes.push(octet & 0x7F);
    } else {
      bytes.push(((octet >>> 28) | 0x80) & 0xFF);
      bytes.push(((octet >>> 21) | 0x80) & 0xFF);
      bytes.push(((octet >>> 14) | 0x80) & 0xFF);
      bytes.push(((octet >>> 7) | 0x80) & 0xFF);
      bytes.push(octet & 0x7F);
    }
  }

  var tmp = s.split('.');
  var bytes = [];
  bytes.push(parseInt(tmp[0], 10) * 40 + parseInt(tmp[1], 10));
  tmp.slice(2).forEach(function(b) {
    encodeOctet(bytes, parseInt(b, 10));
  });

  var self = this;
  this._ensure(2 + bytes.length);
  this.writeByte(tag);
  this.writeLength(bytes.length);
  bytes.forEach(function(b) {
    self.writeByte(b);
  });
};


Writer.prototype.writeLength = function(len) {
  if (typeof(len) !== 'number')
    throw new TypeError('argument must be a Number');

  this._ensure(4);

  if (len <= 0x7f) {
    this._buf[this._offset++] = len;
  } else if (len <= 0xff) {
    this._buf[this._offset++] = 0x81;
    this._buf[this._offset++] = len;
  } else if (len <= 0xffff) {
    this._buf[this._offset++] = 0x82;
    this._buf[this._offset++] = len >> 8;
    this._buf[this._offset++] = len;
  } else if (len <= 0xffffff) {
    this._shift(start, len, 1);
    this._buf[this._offset++] = 0x83;
    this._buf[this._offset++] = len >> 16;
    this._buf[this._offset++] = len >> 8;
    this._buf[this._offset++] = len;
  } else {
    throw new InvalidAsn1ERror('Length too long (> 4 bytes)');
  }
};

Writer.prototype.startSequence = function(tag) {
  if (typeof(tag) !== 'number')
    tag = ASN1.Sequence | ASN1.Constructor;

  this.writeByte(tag);
  this._seq.push(this._offset);
  this._ensure(3);
  this._offset += 3;
};


Writer.prototype.endSequence = function() {
  var seq = this._seq.pop();
  var start = seq + 3;
  var len = this._offset - start;

  if (len <= 0x7f) {
    this._shift(start, len, -2);
    this._buf[seq] = len;
  } else if (len <= 0xff) {
    this._shift(start, len, -1);
    this._buf[seq] = 0x81;
    this._buf[seq + 1] = len;
  } else if (len <= 0xffff) {
    this._buf[seq] = 0x82;
    this._buf[seq + 1] = len >> 8;
    this._buf[seq + 2] = len;
  } else if (len <= 0xffffff) {
    this._shift(start, len, 1);
    this._buf[seq] = 0x83;
    this._buf[seq + 1] = len >> 16;
    this._buf[seq + 2] = len >> 8;
    this._buf[seq + 3] = len;
  } else {
    throw new InvalidAsn1Error('Sequence too long');
  }
};


Writer.prototype._shift = function(start, len, shift) {
  assert.ok(start !== undefined);
  assert.ok(len !== undefined);
  assert.ok(shift);

  this._buf.copy(this._buf, start + shift, start, start + len);
  this._offset += shift;
};

Writer.prototype._ensure = function(len) {
  assert.ok(len);

  if (this._size - this._offset < len) {
    var sz = this._size * this._options.growthFactor;
    if (sz - this._offset < len)
      sz += len;

    var buf = new Buffer(sz);

    this._buf.copy(buf, 0, 0, this._offset);
    this._buf = buf;
    this._size = sz;
  }
};



///--- Exported API

module.exports = Writer;

}).call(this,require("buffer").Buffer)
},{"./errors":447,"./types":450,"assert":3,"buffer":18}],452:[function(require,module,exports){
// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.

// If you have no idea what ASN.1 or BER is, see this:
// ftp://ftp.rsa.com/pub/pkcs/ascii/layman.asc

var Ber = require('./ber/index');



///--- Exported API

module.exports = {

  Ber: Ber,

  BerReader: Ber.Reader,

  BerWriter: Ber.Writer

};

},{"./ber/index":448}],453:[function(require,module,exports){
(function (Buffer,process){
// Copyright (c) 2012, Mark Cavage. All rights reserved.

var assert = require('assert');
var Stream = require('stream').Stream;
var util = require('util');



///--- Globals

var NDEBUG = process.env.NODE_NDEBUG || false;
var UUID_REGEXP = /^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$/;



///--- Messages

var ARRAY_TYPE_REQUIRED = '%s ([%s]) required';
var TYPE_REQUIRED = '%s (%s) is required';



///--- Internal

function capitalize(str) {
        return (str.charAt(0).toUpperCase() + str.slice(1));
}

function uncapitalize(str) {
        return (str.charAt(0).toLowerCase() + str.slice(1));
}

function _() {
        return (util.format.apply(util, arguments));
}


function _assert(arg, type, name, stackFunc) {
        if (!NDEBUG) {
                name = name || type;
                stackFunc = stackFunc || _assert.caller;
                var t = typeof (arg);

                if (t !== type) {
                        throw new assert.AssertionError({
                                message: _(TYPE_REQUIRED, name, type),
                                actual: t,
                                expected: type,
                                operator: '===',
                                stackStartFunction: stackFunc
                        });
                }
        }
}


function _instanceof(arg, type, name, stackFunc) {
        if (!NDEBUG) {
                name = name || type;
                stackFunc = stackFunc || _instanceof.caller;

                if (!(arg instanceof type)) {
                        throw new assert.AssertionError({
                                message: _(TYPE_REQUIRED, name, type.name),
                                actual: _getClass(arg),
                                expected: type.name,
                                operator: 'instanceof',
                                stackStartFunction: stackFunc
                        });
                }
        }
}

function _getClass(object) {
        return (Object.prototype.toString.call(object).slice(8, -1));
};



///--- API

function array(arr, type, name) {
        if (!NDEBUG) {
                name = name || type;

                if (!Array.isArray(arr)) {
                        throw new assert.AssertionError({
                                message: _(ARRAY_TYPE_REQUIRED, name, type),
                                actual: typeof (arr),
                                expected: 'array',
                                operator: 'Array.isArray',
                                stackStartFunction: array.caller
                        });
                }

                for (var i = 0; i < arr.length; i++) {
                        _assert(arr[i], type, name, array);
                }
        }
}


function bool(arg, name) {
        _assert(arg, 'boolean', name, bool);
}


function buffer(arg, name) {
        if (!Buffer.isBuffer(arg)) {
                throw new assert.AssertionError({
                        message: _(TYPE_REQUIRED, name || '', 'Buffer'),
                        actual: typeof (arg),
                        expected: 'buffer',
                        operator: 'Buffer.isBuffer',
                        stackStartFunction: buffer
                });
        }
}


function func(arg, name) {
        _assert(arg, 'function', name);
}


function number(arg, name) {
        _assert(arg, 'number', name);
        if (!NDEBUG && (isNaN(arg) || !isFinite(arg))) {
                throw new assert.AssertionError({
                        message: _(TYPE_REQUIRED, name, 'number'),
                        actual: arg,
                        expected: 'number',
                        operator: 'isNaN',
                        stackStartFunction: number
                });
        }
}


function object(arg, name) {
        _assert(arg, 'object', name);
}


function stream(arg, name) {
        _instanceof(arg, Stream, name);
}


function date(arg, name) {
        _instanceof(arg, Date, name);
}

function regexp(arg, name) {
        _instanceof(arg, RegExp, name);
}


function string(arg, name) {
        _assert(arg, 'string', name);
}


function uuid(arg, name) {
        string(arg, name);
        if (!NDEBUG && !UUID_REGEXP.test(arg)) {
                throw new assert.AssertionError({
                        message: _(TYPE_REQUIRED, name, 'uuid'),
                        actual: 'string',
                        expected: 'uuid',
                        operator: 'test',
                        stackStartFunction: uuid
                });
        }
}


///--- Exports

module.exports = {
        bool: bool,
        buffer: buffer,
        date: date,
        func: func,
        number: number,
        object: object,
        regexp: regexp,
        stream: stream,
        string: string,
        uuid: uuid
};


Object.keys(module.exports).forEach(function (k) {
        if (k === 'buffer')
                return;

        var name = 'arrayOf' + capitalize(k);

        if (k === 'bool')
                k = 'boolean';
        if (k === 'func')
                k = 'function';
        module.exports[name] = function (arg, name) {
                array(arg, k, name);
        };
});

Object.keys(module.exports).forEach(function (k) {
        var _name = 'optional' + capitalize(k);
        var s = uncapitalize(k.replace('arrayOf', ''));
        if (s === 'bool')
                s = 'boolean';
        if (s === 'func')
                s = 'function';

        if (k.indexOf('arrayOf') !== -1) {
          module.exports[_name] = function (arg, name) {
                  if (!NDEBUG && arg !== undefined) {
                          array(arg, s, name);
                  }
          };
        } else {
          module.exports[_name] = function (arg, name) {
                  if (!NDEBUG && arg !== undefined) {
                          _assert(arg, s, name);
                  }
          };
        }
});


// Reexport built-in assertions
Object.keys(assert).forEach(function (k) {
        if (k === 'AssertionError') {
                module.exports[k] = assert[k];
                return;
        }

        module.exports[k] = function () {
                if (!NDEBUG) {
                        assert[k].apply(assert[k], arguments);
                }
        };
});

}).call(this,{"isBuffer":require("../../../../../../../../../browserify/node_modules/insert-module-globals/node_modules/is-buffer/index.js")},require('_process'))
},{"../../../../../../../../../browserify/node_modules/insert-module-globals/node_modules/is-buffer/index.js":211,"_process":215,"assert":3,"stream":233,"util":247}],454:[function(require,module,exports){
/*
 * ctf.js
 *
 * Understand and parse all of the different JSON formats of CTF data and
 * translate that into a series of node-ctype friendly pieces. The reason for
 * the abstraction is to handle different changes in the file format.
 *
 * We have to be careful here that we don't end up using a name that is already
 * a built in type.
 */
var mod_assert = require('assert');
var ASSERT = mod_assert.ok;

var ctf_versions = [ '1.0' ];
var ctf_entries = [ 'integer', 'float', 'typedef', 'struct' ];
var ctf_deftypes = [ 'int8_t', 'uint8_t', 'int16_t', 'uint16_t', 'int32_t',
    'uint32_t', 'float', 'double' ];

function ctfParseInteger(entry, ctype)
{
	var name, sign, len, type;

	name = entry['name'];
	if (!('signed' in entry['integer']))
		throw (new Error('Malformed CTF JSON: integer missing ' +
		    'signed value'));


	if (!('length' in entry['integer']))
		throw (new Error('Malformed CTF JSON: integer missing ' +
		    'length value'));

	sign = entry['integer']['signed'];
	len = entry['integer']['length'];
	type = null;

	if (sign && len == 1)
		type = 'int8_t';
	else if (len == 1)
		type = 'uint8_t';
	else if (sign && len == 2)
		type = 'int16_t';
	else if (len == 2)
		type = 'uint16_t';
	else if (sign && len == 4)
		type = 'int32_t';
	else if (len == 4)
		type = 'uint32_t';
	else if (sign && len == 8)
		type = 'int64_t';
	else if (len == 8)
		type = 'uint64_t';

	if (type === null)
		throw (new Error('Malformed CTF JSON: integer has ' +
		    'unsupported length and sign - ' + len + '/' + sign));

	/*
	 * This means that this is the same as one of our built in types. If
	 * that's the case defining it would be an error. So instead of trying
	 * to typedef it, we'll return here.
	 */
	if (name == type)
		return;

	if (name == 'char') {
		ASSERT(type == 'int8_t');
		return;
	}

	ctype.typedef(name, type);
}

function ctfParseFloat(entry, ctype)
{
	var name, len;

	name = entry['name'];
	if (!('length' in entry['float']))
		throw (new Error('Malformed CTF JSON: float missing ' +
		    'length value'));

	len = entry['float']['length'];
	if (len != 4 && len != 8)
		throw (new Error('Malformed CTF JSON: float has invalid ' +
		    'length value'));

	if (len == 4) {
		if (name == 'float')
			return;
		ctype.typedef(name, 'float');
	} else if (len == 8) {
		if (name == 'double')
			return;
		ctype.typedef(name, 'double');
	}
}

function ctfParseTypedef(entry, ctype)
{
	var name, type, ii;

	name = entry['name'];
	if (typeof (entry['typedef']) != 'string')
		throw (new Error('Malformed CTF JSON: typedef value in not ' +
		    'a string'));

	type = entry['typedef'];

	/*
	 * We need to ensure that we're not looking at type that's one of our
	 * built in types. Traditionally in C a uint32_t would be a typedef to
	 * some kind of integer. However, those size types are built ins.
	 */
	for (ii = 0; ii < ctf_deftypes.length; ii++) {
		if (name == ctf_deftypes[ii])
			return;
	}

	ctype.typedef(name, type);
}

function ctfParseStruct(entry, ctype)
{
	var name, type, ii, val, index, member, push;

	member = [];
	if (!Array.isArray(entry['struct']))
		throw (new Error('Malformed CTF JSON: struct value is not ' +
		    'an array'));

	for (ii = 0; ii < entry['struct'].length; ii++) {
		val = entry['struct'][ii];
		if (!('name' in val))
			throw (new Error('Malformed CTF JSON: struct member ' +
			    'missing name'));

		if (!('type' in val))
			throw (new Error('Malformed CTF JSON: struct member ' +
			    'missing type'));

		if (typeof (val['name']) != 'string')
			throw (new Error('Malformed CTF JSON: struct member ' +
			    'name isn\'t a string'));

		if (typeof (val['type']) != 'string')
			throw (new Error('Malformed CTF JSON: struct member ' +
			    'type isn\'t a string'));

		/*
		 * CTF version 2 specifies array names as <type> [<num>] where
		 * as node-ctype does this as <type>[<num>].
		 */
		name = val['name'];
		type = val['type'];
		index = type.indexOf(' [');
		if (index != -1) {
			type = type.substring(0, index) +
			    type.substring(index + 1, type.length);
		}
		push = {};
		push[name] = { 'type': type };
		member.push(push);
	}

	name = entry['name'];
	ctype.typedef(name, member);
}

function ctfParseEntry(entry, ctype)
{
	var ii, found;

	if (!('name' in entry))
		throw (new Error('Malformed CTF JSON: entry missing "name" ' +
		    'section'));

	for (ii = 0; ii < ctf_entries.length; ii++) {
		if (ctf_entries[ii] in entry)
			found++;
	}

	if (found === 0)
		throw (new Error('Malformed CTF JSON: found no entries'));

	if (found >= 2)
		throw (new Error('Malformed CTF JSON: found more than one ' +
		    'entry'));

	if ('integer' in entry) {
		ctfParseInteger(entry, ctype);
		return;
	}

	if ('float' in entry) {
		ctfParseFloat(entry, ctype);
		return;
	}

	if ('typedef' in entry) {
		ctfParseTypedef(entry, ctype);
		return;
	}

	if ('struct' in entry) {
		ctfParseStruct(entry, ctype);
		return;
	}

	ASSERT(false, 'shouldn\'t reach here');
}

function ctfParseJson(json, ctype)
{
	var version, ii;

	ASSERT(json);
	ASSERT(ctype);
	if (!('metadata' in json))
		throw (new Error('Invalid CTF JSON: missing metadata section'));

	if (!('ctf2json_version' in json['metadata']))
		throw (new Error('Invalid CTF JSON: missing ctf2json_version'));

	version = json['metadata']['ctf2json_version'];
	for (ii = 0; ii < ctf_versions.length; ii++) {
		if (ctf_versions[ii] == version)
			break;
	}

	if (ii == ctf_versions.length)
		throw (new Error('Unsuported ctf2json_version: ' + version));

	if (!('data' in json))
		throw (new Error('Invalid CTF JSON: missing data section'));

	if (!Array.isArray(json['data']))
		throw (new Error('Malformed CTF JSON: data section is not ' +
		    'an array'));

	for (ii = 0; ii < json['data'].length; ii++)
		ctfParseEntry(json['data'][ii], ctype);
}

exports.ctfParseJson = ctfParseJson;

},{"assert":3}],455:[function(require,module,exports){
/*
 * rm - Feb 2011
 * ctio.js:
 *
 * A simple way to read and write simple ctypes. Of course, as you'll find the
 * code isn't as simple as it might appear. The following types are currently
 * supported in big and little endian formats:
 *
 * 	uint8_t			int8_t
 * 	uint16_t		int16_t
 * 	uint32_t		int32_t
 *	float (single precision IEEE 754)
 *	double (double precision IEEE 754)
 *
 * This is designed to work in Node and v8. It may in fact work in other
 * Javascript interpreters (that'd be pretty neat), but it hasn't been tested.
 * If you find that it does in fact work, that's pretty cool. Try and pass word
 * back to the original author.
 *
 * Note to the reader: If you're tabstop isn't set to 8, parts of this may look
 * weird.
 */

/*
 * Numbers in Javascript have a secret: all numbers must be represented with an
 * IEEE-754 double. The double has a mantissa with a length of 52 bits with an
 * implicit one. Thus the range of integers that can be represented is limited
 * to the size of the mantissa, this makes reading and writing 64-bit integers
 * difficult, but far from impossible.
 *
 * Another side effect of this representation is what happens when you use the
 * bitwise operators, i.e. shift left, shift right, and, or, etc. In Javascript,
 * each operand and the result is cast to a signed 32-bit number. However, in
 * the case of >>> the values are cast to an unsigned number.
 */

/*
 * A reminder on endian related issues:
 *
 * Big Endian: MSB -> First byte
 * Little Endian: MSB->Last byte
 */
var mod_assert = require('assert');

/*
 * An 8 bit unsigned integer involves doing no significant work.
 */
function ruint8(buffer, endian, offset)
{
	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	return (buffer[offset]);
}

/*
 * For 16 bit unsigned numbers we can do all the casting that we want to do.
 */
function rgint16(buffer, endian, offset)
{
	var val = 0;

	if (endian == 'big') {
		val = buffer[offset] << 8;
		val |=  buffer[offset+1];
	} else {
		val = buffer[offset];
		val |= buffer[offset+1] << 8;
	}

	return (val);

}

function ruint16(buffer, endian, offset)
{
	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 1 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	return (rgint16(buffer, endian, offset));
}

/*
 * Because most bitshifting is done using signed numbers, if we would go into
 * the realm where we use that 32nd bit, we'll end up going into the negative
 * range. i.e.:
 * > 200 << 24
 * -939524096
 *
 * Not the value you'd expect. To work around this, we end up having to do some
 * abuse of the JavaScript standard. in this case, we know that a >>> shift is
 * defined to cast our value to an *unsigned* 32-bit number. Because of that, we
 * use that instead to save us some additional math, though it does feel a
 * little weird and it isn't obvious as to why you woul dwant to do this at
 * first.
 */
function rgint32(buffer, endian, offset)
{
	var val = 0;

	if (endian == 'big') {
		val = buffer[offset+1] << 16;
		val |= buffer[offset+2] << 8;
		val |= buffer[offset+3];
		val = val + (buffer[offset] << 24 >>> 0);
	} else {
		val = buffer[offset+2] << 16;
		val |= buffer[offset+1] << 8;
		val |= buffer[offset];
		val = val + (buffer[offset + 3] << 24 >>> 0);
	}

	return (val);
}

function ruint32(buffer, endian, offset)
{
	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 3 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	return (rgint32(buffer, endian, offset));
}

/*
 * Reads a 64-bit unsigned number. The astue observer will note that this
 * doesn't quite work. Javascript has chosen to only have numbers that can be
 * represented by a double. A double only has 52 bits of mantissa with an
 * implicit 1, thus we have up to 53 bits to represent an integer. However, 2^53
 * doesn't quite give us what we want. Isn't 53 bits enough for anyone? What
 * could you have possibly wanted to represent that was larger than that? Oh,
 * maybe a size? You mean we bypassed the 4 GB limit on file sizes, when did
 * that happen?
 *
 * To get around this egregious language issue, we're going to instead construct
 * an array of two 32 bit unsigned integers. Where arr[0] << 32 + arr[1] would
 * give the actual number. However, note that the above code probably won't
 * produce the desired results because of the way Javascript numbers are
 * doubles.
 */
function rgint64(buffer, endian, offset)
{
	var val = new Array(2);

	if (endian == 'big') {
		val[0] = ruint32(buffer, endian, offset);
		val[1] = ruint32(buffer, endian, offset+4);
	} else {
		val[0] = ruint32(buffer, endian, offset+4);
		val[1] = ruint32(buffer, endian, offset);
	}

	return (val);
}

function ruint64(buffer, endian, offset)
{
	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 7 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	return (rgint64(buffer, endian, offset));
}


/*
 * Signed integer types, yay team! A reminder on how two's complement actually
 * works. The first bit is the signed bit, i.e. tells us whether or not the
 * number should be positive or negative. If the two's complement value is
 * positive, then we're done, as it's equivalent to the unsigned representation.
 *
 * Now if the number is positive, you're pretty much done, you can just leverage
 * the unsigned translations and return those. Unfortunately, negative numbers
 * aren't quite that straightforward.
 *
 * At first glance, one might be inclined to use the traditional formula to
 * translate binary numbers between the positive and negative values in two's
 * complement. (Though it doesn't quite work for the most negative value)
 * Mainly:
 *  - invert all the bits
 *  - add one to the result
 *
 * Of course, this doesn't quite work in Javascript. Take for example the value
 * of -128. This could be represented in 16 bits (big-endian) as 0xff80. But of
 * course, Javascript will do the following:
 *
 * > ~0xff80
 * -65409
 *
 * Whoh there, Javascript, that's not quite right. But wait, according to
 * Javascript that's perfectly correct. When Javascript ends up seeing the
 * constant 0xff80, it has no notion that it is actually a signed number. It
 * assumes that we've input the unsigned value 0xff80. Thus, when it does the
 * binary negation, it casts it into a signed value, (positive 0xff80). Then
 * when you perform binary negation on that, it turns it into a negative number.
 *
 * Instead, we're going to have to use the following general formula, that works
 * in a rather Javascript friendly way. I'm glad we don't support this kind of
 * weird numbering scheme in the kernel.
 *
 * (BIT-MAX - (unsigned)val + 1) * -1
 *
 * The astute observer, may think that this doesn't make sense for 8-bit numbers
 * (really it isn't necessary for them). However, when you get 16-bit numbers,
 * you do. Let's go back to our prior example and see how this will look:
 *
 * (0xffff - 0xff80 + 1) * -1
 * (0x007f + 1) * -1
 * (0x0080) * -1
 *
 * Doing it this way ends up allowing us to treat it appropriately in
 * Javascript. Sigh, that's really quite ugly for what should just be a few bit
 * shifts, ~ and &.
 */

/*
 * Endianness doesn't matter for 8-bit signed values. We could in fact optimize
 * this case because the more traditional methods work, but for consistency,
 * we'll keep doing this the same way.
 */
function rsint8(buffer, endian, offset)
{
	var neg;

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	neg = buffer[offset] & 0x80;
	if (!neg)
		return (buffer[offset]);

	return ((0xff - buffer[offset] + 1) * -1);
}

/*
 * The 16-bit version requires a bit more effort. In this case, we can leverage
 * our unsigned code to generate the value we want to return.
 */
function rsint16(buffer, endian, offset)
{
	var neg, val;

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 1 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	val = rgint16(buffer, endian, offset);
	neg = val & 0x8000;
	if (!neg)
		return (val);

	return ((0xffff - val + 1) * -1);
}

/*
 * We really shouldn't leverage our 32-bit code here and instead utilize the
 * fact that we know that since these are signed numbers, we can do all the
 * shifting and binary anding to generate the 32-bit number. But, for
 * consistency we'll do the same. If we want to do otherwise, we should instead
 * make the 32 bit unsigned code do the optimization. But as long as there
 * aren't floats secretly under the hood for that, we /should/ be okay.
 */
function rsint32(buffer, endian, offset)
{
	var neg, val;

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 3 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	val = rgint32(buffer, endian, offset);
	neg = val & 0x80000000;
	if (!neg)
		return (val);

	return ((0xffffffff - val + 1) * -1);
}

/*
 * The signed version of this code suffers from all of the same problems of the
 * other 64 bit version.
 */
function rsint64(buffer, endian, offset)
{
	var neg, val;

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 3 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	val = rgint64(buffer, endian, offset);
	neg = val[0] & 0x80000000;

	if (!neg)
		return (val);

	val[0] = (0xffffffff - val[0]) * -1;
	val[1] = (0xffffffff - val[1] + 1) * -1;

	/*
	 * If we had the key 0x8000000000000000, that would leave the lower 32
	 * bits as 0xffffffff, however, since we're goint to add one, that would
	 * actually leave the lower 32-bits as 0x100000000, which would break
	 * our ability to write back a value that we received. To work around
	 * this, if we actually get that value, we're going to bump the upper
	 * portion by 1 and set this to zero.
	 */
	mod_assert.ok(val[1] <= 0x100000000);
	if (val[1] == -0x100000000) {
		val[1] = 0;
		val[0]--;
	}

	return (val);
}

/*
 * We now move onto IEEE 754: The traditional form for floating point numbers
 * and what is secretly hiding at the heart of everything in this. I really hope
 * that someone is actually using this, as otherwise, this effort is probably
 * going to be more wasted.
 *
 * One might be tempted to use parseFloat here, but that wouldn't work at all
 * for several reasons. Mostly due to the way floats actually work, and
 * parseFloat only actually works in base 10. I don't see base 10 anywhere near
 * this file.
 *
 * In this case we'll implement the single and double precision versions. The
 * quadruple precision, while probably useful, wouldn't really be accepted by
 * Javascript, so let's not even waste our time.
 *
 * So let's review how this format looks like. A single precision value is 32
 * bits and has three parts:
 *   -  Sign bit
 *   -  Exponent (Using bias notation)
 *   -  Mantissa
 *
 * |s|eeeeeeee|mmmmmmmmmmmmmmmmmmmmmmmmm|
 * 31| 30-23  |  22    	-       0       |
 *
 * The exponent is stored in a biased input. The bias in this case 127.
 * Therefore, our exponent is equal to the 8-bit value - 127.
 *
 * By default, a number is normalized in IEEE, that means that the mantissa has
 * an implicit one that we don't see. So really the value stored is 1.m.
 * However, if the exponent is all zeros, then instead we have to shift
 * everything to the right one and there is no more implicit one.
 *
 * Special values:
 *  - Positive Infinity:
 *	Sign:		0
 *	Exponent: 	All 1s
 *	Mantissa:	0
 *  - Negative Infinity:
 *	Sign:		1
 *	Exponent: 	All 1s
 *	Mantissa:	0
 *  - NaN:
 *	Sign:		*
 *	Exponent: 	All 1s
 *	Mantissa:	non-zero
 *  - Zero:
 *	Sign:		*
 *	Exponent:	All 0s
 *	Mantissa:	0
 *
 * In the case of zero, the sign bit determines whether we get a positive or
 * negative zero. However, since Javascript cannot determine the difference
 * between the two: i.e. -0 == 0, we just always return 0.
 *
 */
function rfloat(buffer, endian, offset)
{
	var bytes = [];
	var sign, exponent, mantissa, val;
	var bias = 127;
	var maxexp = 0xff;

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 3 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	/* Normalize the bytes to be in endian order */
	if (endian == 'big') {
		bytes[0] = buffer[offset];
		bytes[1] = buffer[offset+1];
		bytes[2] = buffer[offset+2];
		bytes[3] = buffer[offset+3];
	} else {
		bytes[3] = buffer[offset];
		bytes[2] = buffer[offset+1];
		bytes[1] = buffer[offset+2];
		bytes[0] = buffer[offset+3];
	}

	sign = bytes[0] & 0x80;
	exponent = (bytes[0] & 0x7f) << 1;
	exponent |= (bytes[1] & 0x80) >>> 7;
	mantissa = (bytes[1] & 0x7f) << 16;
	mantissa |= bytes[2] << 8;
	mantissa |= bytes[3];

	/* Check for special cases before we do general parsing */
	if (!sign && exponent == maxexp && mantissa === 0)
		return (Number.POSITIVE_INFINITY);

	if (sign && exponent == maxexp && mantissa === 0)
		return (Number.NEGATIVE_INFINITY);

	if (exponent == maxexp && mantissa !== 0)
		return (Number.NaN);

	/*
	 * Javascript really doesn't have support for positive or negative zero.
	 * So we're not going to try and give it to you. That would be just
	 * plain weird. Besides -0 == 0.
	 */
	if (exponent === 0 && mantissa === 0)
		return (0);

	/*
	 * Now we can deal with the bias and the determine whether the mantissa
	 * has the implicit one or not.
	 */
	exponent -= bias;
	if (exponent == -bias) {
		exponent++;
		val = 0;
	} else {
		val = 1;
	}

	val = (val + mantissa * Math.pow(2, -23)) * Math.pow(2, exponent);

	if (sign)
		val *= -1;

	return (val);
}

/*
 * Doubles in IEEE 754 are like their brothers except for a few changes and
 * increases in size:
 *   - The exponent is now 11 bits
 *   - The mantissa is now 52 bits
 *   - The bias is now 1023
 *
 * |s|eeeeeeeeeee|mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm|
 * 63| 62 - 52   | 	51		-			0     |
 * 63| 62 - 52   |      51              -                       0     |
 *
 * While the size has increased a fair amount, we're going to end up keeping the
 * same general formula for calculating the final value. As a reminder, this
 * formula is:
 *
 * (-1)^s * (n + m) * 2^(e-b)
 *
 * Where:
 *	s	is the sign bit
 *	n	is (exponent > 0) ? 1 : 0 -- Determines whether we're normalized
 *					     or not
 *	m	is the mantissa
 *	e	is the exponent specified
 *	b	is the bias for the exponent
 *
 */
function rdouble(buffer, endian, offset)
{
	var bytes = [];
	var sign, exponent, mantissa, val, lowmant;
	var bias = 1023;
	var maxexp = 0x7ff;

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 7 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	/* Normalize the bytes to be in endian order */
	if (endian == 'big') {
		bytes[0] = buffer[offset];
		bytes[1] = buffer[offset+1];
		bytes[2] = buffer[offset+2];
		bytes[3] = buffer[offset+3];
		bytes[4] = buffer[offset+4];
		bytes[5] = buffer[offset+5];
		bytes[6] = buffer[offset+6];
		bytes[7] = buffer[offset+7];
	} else {
		bytes[7] = buffer[offset];
		bytes[6] = buffer[offset+1];
		bytes[5] = buffer[offset+2];
		bytes[4] = buffer[offset+3];
		bytes[3] = buffer[offset+4];
		bytes[2] = buffer[offset+5];
		bytes[1] = buffer[offset+6];
		bytes[0] = buffer[offset+7];
	}

	/*
	 * We can construct the exponent and mantissa the same way as we did in
	 * the case of a float, just increase the range of the exponent.
	 */
	sign = bytes[0] & 0x80;
	exponent = (bytes[0] & 0x7f) << 4;
	exponent |= (bytes[1] & 0xf0) >>> 4;

	/*
	 * This is going to be ugly but then again, we're dealing with IEEE 754.
	 * This could probably be done as a node add on in a few lines of C++,
	 * but oh we'll, we've made it this far so let's be native the rest of
	 * the way...
	 *
	 * What we're going to do is break the mantissa into two parts, the
	 * lower 24 bits and the upper 28 bits. We'll multiply the upper 28 bits
	 * by the appropriate power and then add in the lower 24-bits. Not
	 * really that great. It's pretty much a giant kludge to deal with
	 * Javascript eccentricities around numbers.
	 */
	lowmant = bytes[7];
	lowmant |= bytes[6] << 8;
	lowmant |= bytes[5] << 16;
	mantissa = bytes[4];
	mantissa |= bytes[3] << 8;
	mantissa |= bytes[2] << 16;
	mantissa |= (bytes[1] & 0x0f) << 24;
	mantissa *= Math.pow(2, 24); /* Equivalent to << 24, but JS compat */
	mantissa += lowmant;

	/* Check for special cases before we do general parsing */
	if (!sign && exponent == maxexp && mantissa === 0)
		return (Number.POSITIVE_INFINITY);

	if (sign && exponent == maxexp && mantissa === 0)
		return (Number.NEGATIVE_INFINITY);

	if (exponent == maxexp && mantissa !== 0)
		return (Number.NaN);

	/*
	 * Javascript really doesn't have support for positive or negative zero.
	 * So we're not going to try and give it to you. That would be just
	 * plain weird. Besides -0 == 0.
	 */
	if (exponent === 0 && mantissa === 0)
		return (0);

	/*
	 * Now we can deal with the bias and the determine whether the mantissa
	 * has the implicit one or not.
	 */
	exponent -= bias;
	if (exponent == -bias) {
		exponent++;
		val = 0;
	} else {
		val = 1;
	}

	val = (val + mantissa * Math.pow(2, -52)) * Math.pow(2, exponent);

	if (sign)
		val *= -1;

	return (val);
}

/*
 * Now that we have gone through the pain of reading the individual types, we're
 * probably going to want some way to write these back. None of this is going to
 * be good. But since we have Javascript numbers this should certainly be more
 * interesting. Though we can constrain this end a little bit more in what is
 * valid. For now, let's go back to our friends the unsigned value.
 */

/*
 * Unsigned numbers seem deceptively easy. Here are the general steps and rules
 * that we are going to take:
 *   -  If the number is negative, throw an Error
 *   -  Truncate any floating point portion
 *   -  Take the modulus of the number in our base
 *   -  Write it out to the buffer in the endian format requested at the offset
 */

/*
 * We have to make sure that the value is a valid integer. This means that it is
 * non-negative. It has no fractional component and that it does not exceed the
 * maximum allowed value.
 *
 *	value		The number to check for validity
 *
 *	max		The maximum value
 */
function prepuint(value, max)
{
	if (typeof (value) != 'number')
		throw (new (Error('cannot write a non-number as a number')));

	if (value < 0)
		throw (new Error('specified a negative value for writing an ' +
		    'unsigned value'));

	if (value > max)
		throw (new Error('value is larger than maximum value for ' +
		    'type'));

	if (Math.floor(value) !== value)
		throw (new Error('value has a fractional component'));

	return (value);
}

/*
 * 8-bit version, classy. We can ignore endianness which is good.
 */
function wuint8(value, endian, buffer, offset)
{
	var val;

	if (value === undefined)
		throw (new Error('missing value'));

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	val = prepuint(value, 0xff);
	buffer[offset] = val;
}

/*
 * Pretty much the same as the 8-bit version, just this time we need to worry
 * about endian related issues.
 */
function wgint16(val, endian, buffer, offset)
{
	if (endian == 'big') {
		buffer[offset] = (val & 0xff00) >>> 8;
		buffer[offset+1] = val & 0x00ff;
	} else {
		buffer[offset+1] = (val & 0xff00) >>> 8;
		buffer[offset] = val & 0x00ff;
	}
}

function wuint16(value, endian, buffer, offset)
{
	var val;

	if (value === undefined)
		throw (new Error('missing value'));

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 1 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	val = prepuint(value, 0xffff);
	wgint16(val, endian, buffer, offset);
}

/*
 * The 32-bit version is going to have to be a little different unfortunately.
 * We can't quite bitshift to get the largest byte, because that would end up
 * getting us caught by the signed values.
 *
 * And yes, we do want to subtract out the lower part by default. This means
 * that when we do the division, it will be treated as a bit shift and we won't
 * end up generating a floating point value. If we did generate a floating point
 * value we'd have to truncate it intelligently, this saves us that problem and
 * may even be somewhat faster under the hood.
 */
function wgint32(val, endian, buffer, offset)
{
	if (endian == 'big') {
		buffer[offset] = (val - (val & 0x00ffffff)) / Math.pow(2, 24);
		buffer[offset+1] = (val >>> 16) & 0xff;
		buffer[offset+2] = (val >>> 8) & 0xff;
		buffer[offset+3] = val & 0xff;
	} else {
		buffer[offset+3] = (val - (val & 0x00ffffff)) /
		    Math.pow(2, 24);
		buffer[offset+2] = (val >>> 16) & 0xff;
		buffer[offset+1] = (val >>> 8) & 0xff;
		buffer[offset] = val & 0xff;
	}
}

function wuint32(value, endian, buffer, offset)
{
	var val;

	if (value === undefined)
		throw (new Error('missing value'));

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 3 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	val = prepuint(value, 0xffffffff);
	wgint32(val, endian, buffer, offset);
}

/*
 * Unlike the other versions, we expect the value to be in the form of two
 * arrays where value[0] << 32 + value[1] would result in the value that we
 * want.
 */
function wgint64(value, endian, buffer, offset)
{
	if (endian == 'big') {
		wgint32(value[0], endian, buffer, offset);
		wgint32(value[1], endian, buffer, offset+4);
	} else {
		wgint32(value[0], endian, buffer, offset+4);
		wgint32(value[1], endian, buffer, offset);
	}
}

function wuint64(value, endian, buffer, offset)
{
	if (value === undefined)
		throw (new Error('missing value'));

	if (!(value instanceof Array))
		throw (new Error('value must be an array'));

	if (value.length != 2)
		throw (new Error('value must be an array of length 2'));

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 7 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	prepuint(value[0], 0xffffffff);
	prepuint(value[1], 0xffffffff);
	wgint64(value, endian, buffer, offset);
}

/*
 * We now move onto our friends in the signed number category. Unlike unsigned
 * numbers, we're going to have to worry a bit more about how we put values into
 * arrays. Since we are only worrying about signed 32-bit values, we're in
 * slightly better shape. Unfortunately, we really can't do our favorite binary
 * & in this system. It really seems to do the wrong thing. For example:
 *
 * > -32 & 0xff
 * 224
 *
 * What's happening above is really: 0xe0 & 0xff = 0xe0. However, the results of
 * this aren't treated as a signed number. Ultimately a bad thing.
 *
 * What we're going to want to do is basically create the unsigned equivalent of
 * our representation and pass that off to the wuint* functions. To do that
 * we're going to do the following:
 *
 *  - if the value is positive
 *	we can pass it directly off to the equivalent wuint
 *  - if the value is negative
 *	we do the following computation:
 *	mb + val + 1, where
 *	mb	is the maximum unsigned value in that byte size
 *	val	is the Javascript negative integer
 *
 *
 * As a concrete value, take -128. In signed 16 bits this would be 0xff80. If
 * you do out the computations:
 *
 * 0xffff - 128 + 1
 * 0xffff - 127
 * 0xff80
 *
 * You can then encode this value as the signed version. This is really rather
 * hacky, but it should work and get the job done which is our goal here.
 *
 * Thus the overall flow is:
 *   -  Truncate the floating point part of the number
 *   -  We don't have to take the modulus, because the unsigned versions will
 *   	take care of that for us. And we don't have to worry about that
 *   	potentially causing bad things to happen because of sign extension
 *   -  Pass it off to the appropriate unsigned version, potentially modifying
 *	the negative portions as necessary.
 */

/*
 * A series of checks to make sure we actually have a signed 32-bit number
 */
function prepsint(value, max, min)
{
	if (typeof (value) != 'number')
		throw (new (Error('cannot write a non-number as a number')));

	if (value > max)
		throw (new Error('value larger than maximum allowed value'));

	if (value < min)
		throw (new Error('value smaller than minimum allowed value'));

	if (Math.floor(value) !== value)
		throw (new Error('value has a fractional component'));

	return (value);
}

/*
 * The 8-bit version of the signed value. Overall, fairly straightforward.
 */
function wsint8(value, endian, buffer, offset)
{
	var val;

	if (value === undefined)
		throw (new Error('missing value'));

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	val = prepsint(value, 0x7f, -0x80);
	if (val >= 0)
		wuint8(val, endian, buffer, offset);
	else
		wuint8(0xff + val + 1, endian, buffer, offset);
}

/*
 * The 16-bit version of the signed value. Also, fairly straightforward.
 */
function wsint16(value, endian, buffer, offset)
{
	var val;

	if (value === undefined)
		throw (new Error('missing value'));

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 1 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	val = prepsint(value, 0x7fff, -0x8000);
	if (val >= 0)
		wgint16(val, endian, buffer, offset);
	else
		wgint16(0xffff + val + 1, endian, buffer, offset);

}

/*
 * We can do this relatively easily by leveraging the code used for 32-bit
 * unsigned code.
 */
function wsint32(value, endian, buffer, offset)
{
	var val;

	if (value === undefined)
		throw (new Error('missing value'));

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 3 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	val = prepsint(value, 0x7fffffff, -0x80000000);
	if (val >= 0)
		wgint32(val, endian, buffer, offset);
	else
		wgint32(0xffffffff + val + 1, endian, buffer, offset);
}

/*
 * The signed 64 bit integer should by in the same format as when received.
 * Mainly it should ensure that the value is an array of two integers where
 * value[0] << 32 + value[1] is the desired number. Furthermore, the two values
 * need to be equal.
 */
function wsint64(value, endian, buffer, offset)
{
	var vzpos, vopos;
	var vals = new Array(2);

	if (value === undefined)
		throw (new Error('missing value'));

	if (!(value instanceof Array))
		throw (new Error('value must be an array'));

	if (value.length != 2)
		throw (new Error('value must be an array of length 2'));

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));

	if (offset + 7 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	/*
	 * We need to make sure that we have the same sign on both values. The
	 * hokiest way to to do this is to multiply the number by +inf. If we do
	 * this, we'll get either +/-inf depending on the sign of the value.
	 * Once we have this, we can compare it to +inf to see if the number is
	 * positive or not.
	 */
	vzpos = (value[0] * Number.POSITIVE_INFINITY) ==
	    Number.POSITIVE_INFINITY;
	vopos = (value[1] * Number.POSITIVE_INFINITY) ==
	    Number.POSITIVE_INFINITY;

	/*
	 * If either of these is zero, then we don't actually need this check.
	 */
	if (value[0] != 0 && value[1] != 0 && vzpos != vopos)
		throw (new Error('Both entries in the array must have ' +
		    'the same sign'));

	/*
	 * Doing verification for a signed 64-bit integer is actually a big
	 * trickier than it appears. We can't quite use our standard techniques
	 * because we need to compare both sets of values. The first value is
	 * pretty straightforward. If the first value is beond the extremes than
	 * we error out. However, the valid range of the second value varies
	 * based on the first one. If the first value is negative, and *not* the
	 * largest negative value, than it can be any integer within the range [
	 * 0, 0xffffffff ]. If it is the largest negative number, it must be
	 * zero.
	 *
	 * If the first number is positive, than it doesn't matter what the
	 * value is. We just simply have to make sure we have a valid positive
	 * integer.
	 */
	if (vzpos) {
		prepuint(value[0], 0x7fffffff);
		prepuint(value[1], 0xffffffff);
	} else {
		prepsint(value[0], 0, -0x80000000);
		prepsint(value[1], 0, -0xffffffff);
		if (value[0] == -0x80000000 && value[1] != 0)
			throw (new Error('value smaller than minimum ' +
			    'allowed value'));
	}

	/* Fix negative numbers */
	if (value[0] < 0 || value[1] < 0) {
		vals[0] = 0xffffffff - Math.abs(value[0]);
		vals[1] = 0x100000000 - Math.abs(value[1]);
		if (vals[1] == 0x100000000) {
			vals[1] = 0;
			vals[0]++;
		}
	} else {
		vals[0] = value[0];
		vals[1] = value[1];
	}
	wgint64(vals, endian, buffer, offset);
}

/*
 * Now we are moving onto the weirder of these, the float and double. For this
 * we're going to just have to do something that's pretty weird. First off, we
 * have no way to get at the underlying float representation, at least not
 * easily. But that doesn't mean we can't figure it out, we just have to use our
 * heads.
 *
 * One might propose to use Number.toString(2). Of course, this is not really
 * that good, because the ECMAScript 262 v3 Standard says the following Section
 * 15.7.4.2-Number.prototype.toString (radix):
 *
 * If radix is an integer from 2 to 36, but not 10, the result is a string, the
 * choice of which is implementation-dependent.
 *
 * Well that doesn't really help us one bit now does it? We could use the
 * standard base 10 version of the string, but that's just going to create more
 * errors as we end up trying to convert it back to a binary value. So, really
 * this just means we have to be non-lazy and parse the structure intelligently.
 *
 * First off, we can do the basic checks: NaN, positive and negative infinity.
 *
 * Now that those are done we can work backwards to generate the mantissa and
 * exponent.
 *
 * The first thing we need to do is determine the sign bit, easy to do, check
 * whether the value is less than 0. And convert the number to its absolute
 * value representation. Next, we need to determine if the value is less than
 * one or greater than or equal to one and from there determine what power was
 * used to get there. What follows is now specific to floats, though the general
 * ideas behind this will hold for doubles as well, but the exact numbers
 * involved will change.
 *
 * Once we have that power we can determine the exponent and the mantissa. Call
 * the value that has the number of bits to reach the power ebits. In the
 * general case they have the following values:
 *
 *	exponent	127 + ebits
 *	mantissa	value * 2^(23 - ebits) & 0x7fffff
 *
 * In the case where the value of ebits is <= -127 we are now in the case where
 * we no longer have normalized numbers. In this case the values take on the
 * following values:
 *
 * 	exponent	0
 *	mantissa	value * 2^149 & 0x7fffff
 *
 * Once we have the values for the sign, mantissa, and exponent. We reconstruct
 * the four bytes as follows:
 *
 *	byte0		sign bit and seven most significant bits from the exp
 *			sign << 7 | (exponent & 0xfe) >>> 1
 *
 *	byte1		lsb from the exponent and 7 top bits from the mantissa
 *			(exponent & 0x01) << 7 | (mantissa & 0x7f0000) >>> 16
 *
 *	byte2		bits 8-15 (zero indexing) from mantissa
 *			mantissa & 0xff00 >> 8
 *
 *	byte3		bits 0-7 from mantissa
 *			mantissa & 0xff
 *
 * Once we have this we have to assign them into the buffer in proper endian
 * order.
 */

/*
 * Compute the log base 2 of the value. Now, someone who remembers basic
 * properties of logarithms will point out that we could use the change of base
 * formula for logs, and in fact that would be astute, because that's what we'll
 * do for now. It feels cleaner, albeit it may be less efficient than just
 * iterating and dividing by 2. We may want to come back and revisit that some
 * day.
 */
function log2(value)
{
	return (Math.log(value) / Math.log(2));
}

/*
 * Helper to determine the exponent of the number we're looking at.
 */
function intexp(value)
{
	return (Math.floor(log2(value)));
}

/*
 * Helper to determine the exponent of the fractional part of the value.
 */
function fracexp(value)
{
	return (Math.floor(log2(value)));
}

function wfloat(value, endian, buffer, offset)
{
	var sign, exponent, mantissa, ebits;
	var bytes = [];

	if (value === undefined)
		throw (new Error('missing value'));

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));


	if (offset + 3 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	if (isNaN(value)) {
		sign = 0;
		exponent = 0xff;
		mantissa = 23;
	} else if (value == Number.POSITIVE_INFINITY) {
		sign = 0;
		exponent = 0xff;
		mantissa = 0;
	} else if (value == Number.NEGATIVE_INFINITY) {
		sign = 1;
		exponent = 0xff;
		mantissa = 0;
	} else {
		/* Well we have some work to do */

		/* Thankfully the sign bit is trivial */
		if (value < 0) {
			sign = 1;
			value = Math.abs(value);
		} else {
			sign = 0;
		}

		/* Use the correct function to determine number of bits */
		if (value < 1)
			ebits = fracexp(value);
		else
			ebits = intexp(value);

		/* Time to deal with the issues surrounding normalization */
		if (ebits <= -127) {
			exponent = 0;
			mantissa = (value * Math.pow(2, 149)) & 0x7fffff;
		} else {
			exponent = 127 + ebits;
			mantissa = value * Math.pow(2, 23 - ebits);
			mantissa &= 0x7fffff;
		}
	}

	bytes[0] = sign << 7 | (exponent & 0xfe) >>> 1;
	bytes[1] = (exponent & 0x01) << 7 | (mantissa & 0x7f0000) >>> 16;
	bytes[2] = (mantissa & 0x00ff00) >>> 8;
	bytes[3] = mantissa & 0x0000ff;

	if (endian == 'big') {
		buffer[offset] = bytes[0];
		buffer[offset+1] = bytes[1];
		buffer[offset+2] = bytes[2];
		buffer[offset+3] = bytes[3];
	} else {
		buffer[offset] = bytes[3];
		buffer[offset+1] = bytes[2];
		buffer[offset+2] = bytes[1];
		buffer[offset+3] = bytes[0];
	}
}

/*
 * Now we move onto doubles. Doubles are similar to floats in pretty much all
 * ways except that the processing isn't quite as straightforward because we
 * can't always use shifting, i.e. we have > 32 bit values.
 *
 * We're going to proceed in an identical fashion to floats and utilize the same
 * helper functions. All that really is changing are the specific values that we
 * use to do the calculations. Thus, to review we have to do the following.
 *
 * First get the sign bit and convert the value to its absolute value
 * representation. Next, we determine the number of bits that we used to get to
 * the value, branching whether the value is greater than or less than 1. Once
 * we have that value which we will again call ebits, we have to do the
 * following in the general case:
 *
 *	exponent	1023 + ebits
 *	mantissa	[value * 2^(52 - ebits)] % 2^52
 *
 * In the case where the value of ebits <= -1023 we no longer use normalized
 * numbers, thus like with floats we have to do slightly different processing:
 *
 *	exponent	0
 *	mantissa	[value * 2^1074] % 2^52
 *
 * Once we have determined the sign, exponent and mantissa we can construct the
 * bytes as follows:
 *
 *	byte0		sign bit and seven most significant bits form the exp
 *			sign << 7 | (exponent & 0x7f0) >>> 4
 *
 *	byte1		Remaining 4 bits from the exponent and the four most
 *			significant bits from the mantissa 48-51
 *			(exponent & 0x00f) << 4 | mantissa >>> 48
 *
 *	byte2		Bits 40-47 from the mantissa
 *			(mantissa >>> 40) & 0xff
 *
 *	byte3		Bits 32-39 from the mantissa
 *			(mantissa >>> 32) & 0xff
 *
 *	byte4		Bits 24-31 from the mantissa
 *			(mantissa >>> 24) & 0xff
 *
 *	byte5		Bits 16-23 from the Mantissa
 *			(mantissa >>> 16) & 0xff
 *
 *	byte6		Bits 8-15 from the mantissa
 *			(mantissa >>> 8) & 0xff
 *
 *	byte7		Bits 0-7 from the mantissa
 *			mantissa & 0xff
 *
 * Now we can't quite do the right shifting that we want in bytes 1 - 3, because
 * we'll have extended too far and we'll lose those values when we try and do
 * the shift. Instead we have to use an alternate approach. To try and stay out
 * of floating point, what we'll do is say that mantissa -= bytes[4-7] and then
 * divide by 2^32. Once we've done that we can use binary arithmetic. Oof,
 * that's ugly, but it seems to avoid using floating point (just based on how v8
 * seems to be optimizing for base 2 arithmetic).
 */
function wdouble(value, endian, buffer, offset)
{
	var sign, exponent, mantissa, ebits;
	var bytes = [];

	if (value === undefined)
		throw (new Error('missing value'));

	if (endian === undefined)
		throw (new Error('missing endian'));

	if (buffer === undefined)
		throw (new Error('missing buffer'));

	if (offset === undefined)
		throw (new Error('missing offset'));


	if (offset + 7 >= buffer.length)
		throw (new Error('Trying to read beyond buffer length'));

	if (isNaN(value)) {
		sign = 0;
		exponent = 0x7ff;
		mantissa = 23;
	} else if (value == Number.POSITIVE_INFINITY) {
		sign = 0;
		exponent = 0x7ff;
		mantissa = 0;
	} else if (value == Number.NEGATIVE_INFINITY) {
		sign = 1;
		exponent = 0x7ff;
		mantissa = 0;
	} else {
		/* Well we have some work to do */

		/* Thankfully the sign bit is trivial */
		if (value < 0) {
			sign = 1;
			value = Math.abs(value);
		} else {
			sign = 0;
		}

		/* Use the correct function to determine number of bits */
		if (value < 1)
			ebits = fracexp(value);
		else
			ebits = intexp(value);

		/*
		 * This is a total hack to determine a denormalized value.
		 * Unfortunately, we sometimes do not get a proper value for
		 * ebits, i.e. we lose the values that would get rounded off.
		 *
		 *
		 * The astute observer may wonder why we would be
		 * multiplying by two Math.pows rather than just summing
		 * them. Well, that's to get around a small bug in the
		 * way v8 seems to implement the function. On occasion
		 * doing:
		 *
		 * foo * Math.pow(2, 1023 + 51)
		 *
		 * Causes us to overflow to infinity, where as doing:
		 *
		 * foo * Math.pow(2, 1023) * Math.pow(2, 51)
		 *
		 * Does not cause us to overflow. Go figure.
		 *
		 */
		if (value <= 2.225073858507201e-308 || ebits <= -1023) {
			exponent = 0;
			mantissa = value * Math.pow(2, 1023) * Math.pow(2, 51);
			mantissa %= Math.pow(2, 52);
		} else {
			/*
			 * We might have gotten fucked by our floating point
			 * logarithm magic. This is rather crappy, but that's
			 * our luck. If we just had a log base 2 or access to
			 * the stupid underlying representation this would have
			 * been much easier and we wouldn't have such stupid
			 * kludges or hacks.
			 */
			if (ebits > 1023)
				ebits = 1023;
			exponent = 1023 + ebits;
			mantissa = value * Math.pow(2, -ebits);
			mantissa *= Math.pow(2, 52);
			mantissa %= Math.pow(2, 52);
		}
	}

	/* Fill the bytes in backwards to deal with the size issues */
	bytes[7] = mantissa & 0xff;
	bytes[6] = (mantissa >>> 8) & 0xff;
	bytes[5] = (mantissa >>> 16) & 0xff;
	mantissa = (mantissa - (mantissa & 0xffffff)) / Math.pow(2, 24);
	bytes[4] = mantissa & 0xff;
	bytes[3] = (mantissa >>> 8) & 0xff;
	bytes[2] = (mantissa >>> 16) & 0xff;
	bytes[1] = (exponent & 0x00f) << 4 | mantissa >>> 24;
	bytes[0] = (sign << 7) | (exponent & 0x7f0) >>> 4;

	if (endian == 'big') {
		buffer[offset] = bytes[0];
		buffer[offset+1] = bytes[1];
		buffer[offset+2] = bytes[2];
		buffer[offset+3] = bytes[3];
		buffer[offset+4] = bytes[4];
		buffer[offset+5] = bytes[5];
		buffer[offset+6] = bytes[6];
		buffer[offset+7] = bytes[7];
	} else {
		buffer[offset+7] = bytes[0];
		buffer[offset+6] = bytes[1];
		buffer[offset+5] = bytes[2];
		buffer[offset+4] = bytes[3];
		buffer[offset+3] = bytes[4];
		buffer[offset+2] = bytes[5];
		buffer[offset+1] = bytes[6];
		buffer[offset] = bytes[7];
	}
}

/*
 * Actually export our work above. One might argue that we shouldn't expose
 * these interfaces and just force people to use the higher level abstractions
 * around this work. However, unlike say other libraries we've come across, this
 * interface has several properties: it makes sense, it's simple, and it's
 * useful.
 */
exports.ruint8 = ruint8;
exports.ruint16 = ruint16;
exports.ruint32 = ruint32;
exports.ruint64 = ruint64;
exports.wuint8 = wuint8;
exports.wuint16 = wuint16;
exports.wuint32 = wuint32;
exports.wuint64 = wuint64;

exports.rsint8 = rsint8;
exports.rsint16 = rsint16;
exports.rsint32 = rsint32;
exports.rsint64 = rsint64;
exports.wsint8 = wsint8;
exports.wsint16 = wsint16;
exports.wsint32 = wsint32;
exports.wsint64 = wsint64;

exports.rfloat = rfloat;
exports.rdouble = rdouble;
exports.wfloat = wfloat;
exports.wdouble = wdouble;

},{"assert":3}],456:[function(require,module,exports){
(function (Buffer){
/*
 * rm - Feb 2011
 * ctype.js
 *
 * This module provides a simple abstraction towards reading and writing
 * different types of binary data. It is designed to use ctio.js and provide a
 * richer and more expressive API on top of it.
 *
 * By default we support the following as built in basic types:
 *	int8_t
 *	int16_t
 *	int32_t
 *	uint8_t
 *	uint16_t
 *	uint32_t
 *	uint64_t
 *	float
 *	double
 *	char
 *	char[]
 *
 * Each type is returned as a Number, with the exception of char and char[]
 * which are returned as Node Buffers. A char is considered a uint8_t.
 *
 * Requests to read and write data are specified as an array of JSON objects.
 * This is also the same way that one declares structs. Even if just a single
 * value is requested, it must be done as a struct. The array order determines
 * the order that we try and read values. Each entry has the following format
 * with values marked with a * being optional.
 *
 * { key: { type: /type/, value*: /value/, offset*: /offset/ }
 *
 * If offset is defined, we lseek(offset, SEEK_SET) before reading the next
 * value. Value is defined when we're writing out data, otherwise it's ignored.
 *
 */

var mod_ctf = require('./ctf.js');
var mod_ctio = require('./ctio.js');
var mod_assert = require('assert');

/*
 * This is the set of basic types that we support.
 *
 *	read		The function to call to read in a value from a buffer
 *
 *	write		The function to call to write a value to a buffer
 *
 */
var deftypes = {
    'uint8_t':  { read: ctReadUint8, write: ctWriteUint8 },
    'uint16_t': { read: ctReadUint16, write: ctWriteUint16 },
    'uint32_t': { read: ctReadUint32, write: ctWriteUint32 },
    'uint64_t': { read: ctReadUint64, write: ctWriteUint64 },
    'int8_t': { read: ctReadSint8, write: ctWriteSint8 },
    'int16_t': { read: ctReadSint16, write: ctWriteSint16 },
    'int32_t': { read: ctReadSint32, write: ctWriteSint32 },
    'int64_t': { read: ctReadSint64, write: ctWriteSint64 },
    'float': { read: ctReadFloat, write: ctWriteFloat },
    'double': { read: ctReadDouble, write: ctWriteDouble },
    'char': { read: ctReadChar, write: ctWriteChar },
    'char[]': { read: ctReadCharArray, write: ctWriteCharArray }
};

/*
 * The following are wrappers around the CType IO low level API. They encode
 * knowledge about the size and return something in the expected format.
 */
function ctReadUint8(endian, buffer, offset)
{
	var val = mod_ctio.ruint8(buffer, endian, offset);
	return ({ value: val, size: 1 });
}

function ctReadUint16(endian, buffer, offset)
{
	var val = mod_ctio.ruint16(buffer, endian, offset);
	return ({ value: val, size: 2 });
}

function ctReadUint32(endian, buffer, offset)
{
	var val = mod_ctio.ruint32(buffer, endian, offset);
	return ({ value: val, size: 4 });
}

function ctReadUint64(endian, buffer, offset)
{
	var val = mod_ctio.ruint64(buffer, endian, offset);
	return ({ value: val, size: 8 });
}

function ctReadSint8(endian, buffer, offset)
{
	var val = mod_ctio.rsint8(buffer, endian, offset);
	return ({ value: val, size: 1 });
}

function ctReadSint16(endian, buffer, offset)
{
	var val = mod_ctio.rsint16(buffer, endian, offset);
	return ({ value: val, size: 2 });
}

function ctReadSint32(endian, buffer, offset)
{
	var val = mod_ctio.rsint32(buffer, endian, offset);
	return ({ value: val, size: 4 });
}

function ctReadSint64(endian, buffer, offset)
{
	var val = mod_ctio.rsint64(buffer, endian, offset);
	return ({ value: val, size: 8 });
}

function ctReadFloat(endian, buffer, offset)
{
	var val = mod_ctio.rfloat(buffer, endian, offset);
	return ({ value: val, size: 4 });
}

function ctReadDouble(endian, buffer, offset)
{
	var val = mod_ctio.rdouble(buffer, endian, offset);
	return ({ value: val, size: 8 });
}

/*
 * Reads a single character into a node buffer
 */
function ctReadChar(endian, buffer, offset)
{
	var res = new Buffer(1);
	res[0] = mod_ctio.ruint8(buffer, endian, offset);
	return ({ value: res, size: 1 });
}

function ctReadCharArray(length, endian, buffer, offset)
{
	var ii;
	var res = new Buffer(length);

	for (ii = 0; ii < length; ii++)
		res[ii] = mod_ctio.ruint8(buffer, endian, offset + ii);

	return ({ value: res, size: length });
}

function ctWriteUint8(value, endian, buffer, offset)
{
	mod_ctio.wuint8(value, endian, buffer, offset);
	return (1);
}

function ctWriteUint16(value, endian, buffer, offset)
{
	mod_ctio.wuint16(value, endian, buffer, offset);
	return (2);
}

function ctWriteUint32(value, endian, buffer, offset)
{
	mod_ctio.wuint32(value, endian, buffer, offset);
	return (4);
}

function ctWriteUint64(value, endian, buffer, offset)
{
	mod_ctio.wuint64(value, endian, buffer, offset);
	return (8);
}

function ctWriteSint8(value, endian, buffer, offset)
{
	mod_ctio.wsint8(value, endian, buffer, offset);
	return (1);
}

function ctWriteSint16(value, endian, buffer, offset)
{
	mod_ctio.wsint16(value, endian, buffer, offset);
	return (2);
}

function ctWriteSint32(value, endian, buffer, offset)
{
	mod_ctio.wsint32(value, endian, buffer, offset);
	return (4);
}

function ctWriteSint64(value, endian, buffer, offset)
{
	mod_ctio.wsint64(value, endian, buffer, offset);
	return (8);
}

function ctWriteFloat(value, endian, buffer, offset)
{
	mod_ctio.wfloat(value, endian, buffer, offset);
	return (4);
}

function ctWriteDouble(value, endian, buffer, offset)
{
	mod_ctio.wdouble(value, endian, buffer, offset);
	return (8);
}

/*
 * Writes a single character into a node buffer
 */
function ctWriteChar(value, endian, buffer, offset)
{
	if (!(value instanceof Buffer))
		throw (new Error('Input must be a buffer'));

	mod_ctio.ruint8(value[0], endian, buffer, offset);
	return (1);
}

/*
 * We're going to write 0s into the buffer if the string is shorter than the
 * length of the array.
 */
function ctWriteCharArray(value, length, endian, buffer, offset)
{
	var ii;

	if (!(value instanceof Buffer))
		throw (new Error('Input must be a buffer'));

	if (value.length > length)
		throw (new Error('value length greater than array length'));

	for (ii = 0; ii < value.length && ii < length; ii++)
		mod_ctio.wuint8(value[ii], endian, buffer, offset + ii);

	for (; ii < length; ii++)
		mod_ctio.wuint8(0, endian, offset + ii);


	return (length);
}

/*
 * Each parser has their own set of types. We want to make sure that they each
 * get their own copy as they may need to modify it.
 */
function ctGetBasicTypes()
{
	var ret = {};
	var key;
	for (key in deftypes)
		ret[key] = deftypes[key];

	return (ret);
}

/*
 * Given a string in the form of type[length] we want to split this into an
 * object that extracts that information. We want to note that we could possibly
 * have nested arrays so this should only check the furthest one. It may also be
 * the case that we have no [] pieces, in which case we just return the current
 * type.
 */
function ctParseType(str)
{
	var begInd, endInd;
	var type, len;
	if (typeof (str) != 'string')
		throw (new Error('type must be a Javascript string'));

	endInd = str.lastIndexOf(']');
	if (endInd == -1) {
		if (str.lastIndexOf('[') != -1)
			throw (new Error('found invalid type with \'[\' but ' +
			    'no corresponding \']\''));

		return ({ type: str });
	}

	begInd = str.lastIndexOf('[');
	if (begInd == -1)
		throw (new Error('found invalid type with \']\' but ' +
		    'no corresponding \'[\''));

	if (begInd >= endInd)
		throw (new Error('malformed type, \']\' appears before \'[\''));

	type = str.substring(0, begInd);
	len = str.substring(begInd + 1, endInd);

	return ({ type: type, len: len });
}

/*
 * Given a request validate that all of the fields for it are valid and make
 * sense. This includes verifying the following notions:
 *  - Each type requested is present in types
 *  - Only allow a name for a field to be specified once
 *  - If an array is specified, validate that the requested field exists and
 *    comes before it.
 *  - If fields is defined, check that each entry has the occurrence of field
 */
function ctCheckReq(def, types, fields)
{
	var ii, jj;
	var req, keys, key;
	var found = {};

	if (!(def instanceof Array))
		throw (new Error('definition is not an array'));

	if (def.length === 0)
		throw (new Error('definition must have at least one element'));

	for (ii = 0; ii < def.length; ii++) {
		req = def[ii];
		if (!(req instanceof Object))
			throw (new Error('definition must be an array of' +
			    'objects'));

		keys = Object.keys(req);
		if (keys.length != 1)
			throw (new Error('definition entry must only have ' +
			    'one key'));

		if (keys[0] in found)
			throw (new Error('Specified name already ' +
			    'specified: ' + keys[0]));

		if (!('type' in req[keys[0]]))
			throw (new Error('missing required type definition'));

		key = ctParseType(req[keys[0]]['type']);

		/*
		 * We may have nested arrays, we need to check the validity of
		 * the types until the len field is undefined in key. However,
		 * each time len is defined we need to verify it is either an
		 * integer or corresponds to an already seen key.
		 */
		while (key['len'] !== undefined) {
			if (isNaN(parseInt(key['len'], 10))) {
				if (!(key['len'] in found))
					throw (new Error('Given an array ' +
					    'length without a matching type'));

			}

			key = ctParseType(key['type']);
		}

		/* Now we can validate if the type is valid */
		if (!(key['type'] in types))
			throw (new Error('type not found or typdefed: ' +
			    key['type']));

		/* Check for any required fields */
		if (fields !== undefined) {
			for (jj = 0; jj < fields.length; jj++) {
				if (!(fields[jj] in req[keys[0]]))
					throw (new Error('Missing required ' +
					    'field: ' + fields[jj]));
			}
		}

		found[keys[0]] = true;
	}
}


/*
 * Create a new instance of the parser. Each parser has its own store of
 * typedefs and endianness. Conf is an object with the following required
 * values:
 *
 *	endian		Either 'big' or 'little' do determine the endianness we
 *			want to read from or write to.
 *
 * And the following optional values:
 *
 * 	char-type	Valid options here are uint8 and int8. If uint8 is
 * 			specified this changes the default behavior of a single
 * 			char from being a buffer of a single character to being
 * 			a uint8_t. If int8, it becomes an int8_t instead.
 */
function CTypeParser(conf)
{
	if (!conf) throw (new Error('missing required argument'));

	if (!('endian' in conf))
		throw (new Error('missing required endian value'));

	if (conf['endian'] != 'big' && conf['endian'] != 'little')
		throw (new Error('Invalid endian type'));

	if ('char-type' in conf && (conf['char-type'] != 'uint8' &&
	    conf['char-type'] != 'int8'))
		throw (new Error('invalid option for char-type: ' +
		    conf['char-type']));

	this.endian = conf['endian'];
	this.types = ctGetBasicTypes();

	/*
	 * There may be a more graceful way to do this, but this will have to
	 * serve.
	 */
	if ('char-type' in conf && conf['char-type'] == 'uint8')
		this.types['char'] = this.types['uint8_t'];

	if ('char-type' in conf && conf['char-type'] == 'int8')
		this.types['char'] = this.types['int8_t'];
}

/*
 * Sets the current endian value for the Parser. If the value is not valid,
 * throws an Error.
 *
 *	endian		Either 'big' or 'little' do determine the endianness we
 *			want to read from or write to.
 *
 */
CTypeParser.prototype.setEndian = function (endian)
{
	if (endian != 'big' && endian != 'little')
		throw (new Error('invalid endian type, must be big or ' +
		    'little'));

	this.endian = endian;
};

/*
 * Returns the current value of the endian value for the parser.
 */
CTypeParser.prototype.getEndian = function ()
{
	return (this.endian);
};

/*
 * A user has requested to add a type, let us honor their request. Yet, if their
 * request doth spurn us, send them unto the Hells which Dante describes.
 *
 * 	name		The string for the type definition we're adding
 *
 *	value		Either a string that is a type/array name or an object
 *			that describes a struct.
 */
CTypeParser.prototype.typedef = function (name, value)
{
	var type;

	if (name === undefined)
		throw (new (Error('missing required typedef argument: name')));

	if (value === undefined)
		throw (new (Error('missing required typedef argument: value')));

	if (typeof (name) != 'string')
		throw (new (Error('the name of a type must be a string')));

	type = ctParseType(name);

	if (type['len'] !== undefined)
		throw (new Error('Cannot have an array in the typedef name'));

	if (name in this.types)
		throw (new Error('typedef name already present: ' + name));

	if (typeof (value) != 'string' && !(value instanceof Array))
		throw (new Error('typedef value must either be a string or ' +
		    'struct'));

	if (typeof (value) == 'string') {
		type = ctParseType(value);
		if (type['len'] !== undefined) {
			if (isNaN(parseInt(type['len'], 10)))
				throw (new (Error('typedef value must use ' +
				    'fixed size array when outside of a ' +
				    'struct')));
		}

		this.types[name] = value;
	} else {
		/* We have a struct, validate it */
		ctCheckReq(value, this.types);
		this.types[name] = value;
	}
};

/*
 * Include all of the typedefs, but none of the built in types. This should be
 * treated as read-only.
 */
CTypeParser.prototype.lstypes = function ()
{
	var key;
	var ret = {};

	for (key in this.types) {
		if (key in deftypes)
			continue;
		ret[key] = this.types[key];
	}

	return (ret);
};

/*
 * Given a type string that may have array types that aren't numbers, try and
 * fill them in from the values object. The object should be of the format where
 * indexing into it should return a number for that type.
 *
 *	str		The type string
 *
 *	values		An object that can be used to fulfill type information
 */
function ctResolveArray(str, values)
{
	var ret = '';
	var type = ctParseType(str);

	while (type['len'] !== undefined) {
		if (isNaN(parseInt(type['len'], 10))) {
			if (typeof (values[type['len']]) != 'number')
				throw (new Error('cannot sawp in non-number ' +
				    'for array value'));
			ret = '[' + values[type['len']] + ']' + ret;
		} else {
			ret = '[' + type['len'] + ']' + ret;
		}
		type = ctParseType(type['type']);
	}

	ret = type['type'] + ret;

	return (ret);
}

/*
 * [private] Either the typedef resolves to another type string or to a struct.
 * If it resolves to a struct, we just pass it off to read struct. If not, we
 * can just pass it off to read entry.
 */
CTypeParser.prototype.resolveTypedef = function (type, dispatch, buffer,
    offset, value)
{
	var pt;

	mod_assert.ok(type in this.types);
	if (typeof (this.types[type]) == 'string') {
		pt = ctParseType(this.types[type]);
		if (dispatch == 'read')
			return (this.readEntry(pt, buffer, offset));
		else if (dispatch == 'write')
			return (this.writeEntry(value, pt, buffer, offset));
		else
			throw (new Error('invalid dispatch type to ' +
			    'resolveTypedef'));
	} else {
		if (dispatch == 'read')
			return (this.readStruct(this.types[type], buffer,
			    offset));
		else if (dispatch == 'write')
			return (this.writeStruct(value, this.types[type],
			    buffer, offset));
		else
			throw (new Error('invalid dispatch type to ' +
			    'resolveTypedef'));
	}

};

/*
 * [private] Try and read in the specific entry.
 */
CTypeParser.prototype.readEntry = function (type, buffer, offset)
{
	var parse, len;

	/*
	 * Because we want to special case char[]s this is unfortunately
	 * a bit uglier than it really should be. We want to special
	 * case char[]s so that we return a node buffer, thus they are a
	 * first class type where as all other arrays just call into a
	 * generic array routine which calls their data-specific routine
	 * the specified number of times.
	 *
	 * The valid dispatch options we have are:
	 *  - Array and char => char[] handler
	 *  - Generic array handler
	 *  - Generic typedef handler
	 *  - Basic type handler
	 */
	if (type['len'] !== undefined) {
		len = parseInt(type['len'], 10);
		if (isNaN(len))
			throw (new Error('somehow got a non-numeric length'));

		if (type['type'] == 'char')
			parse = this.types['char[]']['read'](len,
			    this.endian, buffer, offset);
		else
			parse = this.readArray(type['type'],
			    len, buffer, offset);
	} else {
		if (type['type'] in deftypes)
			parse = this.types[type['type']]['read'](this.endian,
			    buffer, offset);
		else
			parse = this.resolveTypedef(type['type'], 'read',
			    buffer, offset);
	}

	return (parse);
};

/*
 * [private] Read an array of data
 */
CTypeParser.prototype.readArray = function (type, length, buffer, offset)
{
	var ii, ent, pt;
	var baseOffset = offset;
	var ret = new Array(length);
	pt = ctParseType(type);

	for (ii = 0; ii < length; ii++) {
		ent = this.readEntry(pt, buffer, offset);
		offset += ent['size'];
		ret[ii] = ent['value'];
	}

	return ({ value: ret, size: offset - baseOffset });
};

/*
 * [private] Read a single struct in.
 */
CTypeParser.prototype.readStruct = function (def, buffer, offset)
{
	var parse, ii, type, entry, key;
	var baseOffset = offset;
	var ret = {};

	/* Walk it and handle doing what's necessary */
	for (ii = 0; ii < def.length; ii++) {
		key = Object.keys(def[ii])[0];
		entry = def[ii][key];

		/* Resolve all array values */
		type = ctParseType(ctResolveArray(entry['type'], ret));

		if ('offset' in entry)
			offset = baseOffset + entry['offset'];

		parse = this.readEntry(type, buffer, offset);

		offset += parse['size'];
		ret[key] = parse['value'];
	}

	return ({ value: ret, size: (offset-baseOffset)});
};

/*
 * This is what we were born to do. We read the data from a buffer and return it
 * in an object whose keys match the values from the object.
 *
 *	def		The array definition of the data to read in
 *
 *	buffer		The buffer to read data from
 *
 *	offset		The offset to start writing to
 *
 * Returns an object where each key corresponds to an entry in def and the value
 * is the read value.
 */
CTypeParser.prototype.readData = function (def, buffer, offset)
{
	/* Sanity check for arguments */
	if (def === undefined)
		throw (new Error('missing definition for what we should be' +
		    'parsing'));

	if (buffer === undefined)
		throw (new Error('missing buffer for what we should be ' +
		    'parsing'));

	if (offset === undefined)
		throw (new Error('missing offset for what we should be ' +
		    'parsing'));

	/* Sanity check the object definition */
	ctCheckReq(def, this.types);

	return (this.readStruct(def, buffer, offset)['value']);
};

/*
 * [private] Write out an array of data
 */
CTypeParser.prototype.writeArray = function (value, type, length, buffer,
    offset)
{
	var ii, pt;
	var baseOffset = offset;
	if (!(value instanceof Array))
		throw (new Error('asked to write an array, but value is not ' +
		    'an array'));

	if (value.length != length)
		throw (new Error('asked to write array of length ' + length +
		    ' but that does not match value length: ' + value.length));

	pt = ctParseType(type);
	for (ii = 0; ii < length; ii++)
		offset += this.writeEntry(value[ii], pt, buffer, offset);

	return (offset - baseOffset);
};

/*
 * [private] Write the specific entry
 */
CTypeParser.prototype.writeEntry = function (value, type, buffer, offset)
{
	var len, ret;

	if (type['len'] !== undefined) {
		len = parseInt(type['len'], 10);
		if (isNaN(len))
			throw (new Error('somehow got a non-numeric length'));

		if (type['type'] == 'char')
			ret = this.types['char[]']['write'](value, len,
			    this.endian, buffer, offset);
		else
			ret = this.writeArray(value, type['type'],
			    len, buffer, offset);
	} else {
		if (type['type'] in deftypes)
			ret = this.types[type['type']]['write'](value,
			    this.endian, buffer, offset);
		else
			ret = this.resolveTypedef(type['type'], 'write',
			    buffer, offset, value);
	}

	return (ret);
};

/*
 * [private] Write a single struct out.
 */
CTypeParser.prototype.writeStruct = function (value, def, buffer, offset)
{
	var ii, entry, type, key;
	var baseOffset = offset;
	var vals = {};

	for (ii = 0; ii < def.length; ii++) {
		key = Object.keys(def[ii])[0];
		entry = def[ii][key];

		type = ctParseType(ctResolveArray(entry['type'], vals));

		if ('offset' in entry)
			offset = baseOffset + entry['offset'];

		offset += this.writeEntry(value[ii], type, buffer, offset);
		/* Now that we've written it out, we can use it for arrays */
		vals[key] = value[ii];
	}

	return (offset);
};

/*
 * Unfortunately, we're stuck with the sins of an initial poor design. Because
 * of that, we are going to have to support the old way of writing data via
 * writeData. There we insert the values that you want to write into the
 * definition. A little baroque. Internally, we use the new model. So we need to
 * just get those values out of there. But to maintain the principle of least
 * surprise, we're not going to modify the input data.
 */
function getValues(def)
{
	var ii, out, key;
	out = [];
	for (ii = 0; ii < def.length; ii++) {
		key = Object.keys(def[ii])[0];
		mod_assert.ok('value' in def[ii][key]);
		out.push(def[ii][key]['value']);
	}

	return (out);
}

/*
 * This is the second half of what we were born to do, write out the data
 * itself. Historically this function required you to put your values in the
 * definition section. This was not the smartest thing to do and a bit of an
 * oversight to be honest. As such, this function now takes a values argument.
 * If values is non-null and non-undefined, it will be used to determine the
 * values. This means that the old method is still supported, but is no longer
 * acceptable.
 *
 *	def		The array definition of the data to write out with
 *			values
 *
 *	buffer		The buffer to write to
 *
 *	offset		The offset in the buffer to write to
 *
 *	values		An array of values to write.
 */
CTypeParser.prototype.writeData = function (def, buffer, offset, values)
{
	var hv;

	if (def === undefined)
		throw (new Error('missing definition for what we should be' +
		    'parsing'));

	if (buffer === undefined)
		throw (new Error('missing buffer for what we should be ' +
		    'parsing'));

	if (offset === undefined)
		throw (new Error('missing offset for what we should be ' +
		    'parsing'));

	hv = (values != null && values != undefined);
	if (hv) {
		if (!Array.isArray(values))
			throw (new Error('missing values for writing'));
		ctCheckReq(def, this.types);
	} else {
		ctCheckReq(def, this.types, [ 'value' ]);
	}

	this.writeStruct(hv ? values : getValues(def), def, buffer, offset);
};

/*
 * Functions to go to and from 64 bit numbers in a way that is compatible with
 * Javascript limitations. There are two sets. One where the user is okay with
 * an approximation and one where they are definitely not okay with an
 * approximation.
 */

/*
 * Attempts to convert an array of two integers returned from rsint64 / ruint64
 * into an absolute 64 bit number. If however the value would exceed 2^52 this
 * will instead throw an error. The mantissa in a double is a 52 bit number and
 * rather than potentially give you a value that is an approximation this will
 * error. If you would rather an approximation, please see toApprox64.
 *
 *	val		An array of two 32-bit integers
 */
function toAbs64(val)
{
	if (val === undefined)
		throw (new Error('missing required arg: value'));

	if (!Array.isArray(val))
		throw (new Error('value must be an array'));

	if (val.length != 2)
		throw (new Error('value must be an array of length 2'));

	/* We have 20 bits worth of precision in this range */
	if (val[0] >= 0x100000)
		throw (new Error('value would become approximated'));

	return (val[0] * Math.pow(2, 32) + val[1]);
}

/*
 * Will return the 64 bit value as returned in an array from rsint64 / ruint64
 * to a value as close as it can. Note that Javascript stores all numbers as a
 * double and the mantissa only has 52 bits. Thus this version may approximate
 * the value.
 *
 *	val		An array of two 32-bit integers
 */
function toApprox64(val)
{
	if (val === undefined)
		throw (new Error('missing required arg: value'));

	if (!Array.isArray(val))
		throw (new Error('value must be an array'));

	if (val.length != 2)
		throw (new Error('value must be an array of length 2'));

	return (Math.pow(2, 32) * val[0] + val[1]);
}

function parseCTF(json, conf)
{
	var ctype = new CTypeParser(conf);
	mod_ctf.ctfParseJson(json, ctype);

	return (ctype);
}

/*
 * Export the few things we actually want to. Currently this is just the CType
 * Parser and ctio.
 */
exports.Parser = CTypeParser;
exports.toAbs64 = toAbs64;
exports.toApprox64 = toApprox64;

exports.parseCTF = parseCTF;

exports.ruint8 = mod_ctio.ruint8;
exports.ruint16 = mod_ctio.ruint16;
exports.ruint32 = mod_ctio.ruint32;
exports.ruint64 = mod_ctio.ruint64;
exports.wuint8 = mod_ctio.wuint8;
exports.wuint16 = mod_ctio.wuint16;
exports.wuint32 = mod_ctio.wuint32;
exports.wuint64 = mod_ctio.wuint64;

exports.rsint8 = mod_ctio.rsint8;
exports.rsint16 = mod_ctio.rsint16;
exports.rsint32 = mod_ctio.rsint32;
exports.rsint64 = mod_ctio.rsint64;
exports.wsint8 = mod_ctio.wsint8;
exports.wsint16 = mod_ctio.wsint16;
exports.wsint32 = mod_ctio.wsint32;
exports.wsint64 = mod_ctio.wsint64;

exports.rfloat = mod_ctio.rfloat;
exports.rdouble = mod_ctio.rdouble;
exports.wfloat = mod_ctio.wfloat;
exports.wdouble = mod_ctio.wdouble;

}).call(this,require("buffer").Buffer)
},{"./ctf.js":454,"./ctio.js":455,"assert":3,"buffer":18}],457:[function(require,module,exports){
var stream = require('stream')


function isStream (obj) {
  return obj instanceof stream.Stream
}


function isReadable (obj) {
  return isStream(obj) && typeof obj._read == 'function' && typeof obj._readableState == 'object'
}


function isWritable (obj) {
  return isStream(obj) && typeof obj._write == 'function' && typeof obj._writableState == 'object'
}


function isDuplex (obj) {
  return isReadable(obj) && isWritable(obj)
}


module.exports            = isStream
module.exports.isReadable = isReadable
module.exports.isWritable = isWritable
module.exports.isDuplex   = isDuplex

},{"stream":233}],458:[function(require,module,exports){
exports = module.exports = stringify
exports.getSerialize = serializer

function stringify(obj, replacer, spaces, cycleReplacer) {
  return JSON.stringify(obj, serializer(replacer, cycleReplacer), spaces)
}

function serializer(replacer, cycleReplacer) {
  var stack = [], keys = []

  if (cycleReplacer == null) cycleReplacer = function(key, value) {
    if (stack[0] === value) return "[Circular ~]"
    return "[Circular ~." + keys.slice(0, stack.indexOf(value)).join(".") + "]"
  }

  return function(key, value) {
    if (stack.length > 0) {
      var thisPos = stack.indexOf(this)
      ~thisPos ? stack.splice(thisPos + 1) : stack.push(this)
      ~thisPos ? keys.splice(thisPos, Infinity, key) : keys.push(key)
      if (~stack.indexOf(value)) value = cycleReplacer.call(this, key, value)
    }
    else stack.push(value)

    return replacer == null ? value : replacer.call(this, key, value)
  }
}

},{}],459:[function(require,module,exports){
/*!
 * mime-types
 * Copyright(c) 2014 Jonathan Ong
 * Copyright(c) 2015 Douglas Christopher Wilson
 * MIT Licensed
 */

'use strict'

/**
 * Module dependencies.
 * @private
 */

var db = require('mime-db')
var extname = require('path').extname

/**
 * Module variables.
 * @private
 */

var extractTypeRegExp = /^\s*([^;\s]*)(?:;|\s|$)/
var textTypeRegExp = /^text\//i

/**
 * Module exports.
 * @public
 */

exports.charset = charset
exports.charsets = { lookup: charset }
exports.contentType = contentType
exports.extension = extension
exports.extensions = Object.create(null)
exports.lookup = lookup
exports.types = Object.create(null)

// Populate the extensions/types maps
populateMaps(exports.extensions, exports.types)

/**
 * Get the default charset for a MIME type.
 *
 * @param {string} type
 * @return {boolean|string}
 */

function charset(type) {
  if (!type || typeof type !== 'string') {
    return false
  }

  // TODO: use media-typer
  var match = extractTypeRegExp.exec(type)
  var mime = match && db[match[1].toLowerCase()]

  if (mime && mime.charset) {
    return mime.charset
  }

  // default text/* to utf-8
  if (match && textTypeRegExp.test(match[1])) {
    return 'UTF-8'
  }

  return false
}

/**
 * Create a full Content-Type header given a MIME type or extension.
 *
 * @param {string} str
 * @return {boolean|string}
 */

function contentType(str) {
  // TODO: should this even be in this module?
  if (!str || typeof str !== 'string') {
    return false
  }

  var mime = str.indexOf('/') === -1
    ? exports.lookup(str)
    : str

  if (!mime) {
    return false
  }

  // TODO: use content-type or other module
  if (mime.indexOf('charset') === -1) {
    var charset = exports.charset(mime)
    if (charset) mime += '; charset=' + charset.toLowerCase()
  }

  return mime
}

/**
 * Get the default extension for a MIME type.
 *
 * @param {string} type
 * @return {boolean|string}
 */

function extension(type) {
  if (!type || typeof type !== 'string') {
    return false
  }

  // TODO: use media-typer
  var match = extractTypeRegExp.exec(type)

  // get extensions
  var exts = match && exports.extensions[match[1].toLowerCase()]

  if (!exts || !exts.length) {
    return false
  }

  return exts[0]
}

/**
 * Lookup the MIME type for a file path/extension.
 *
 * @param {string} path
 * @return {boolean|string}
 */

function lookup(path) {
  if (!path || typeof path !== 'string') {
    return false
  }

  // get the extension ("ext" or ".ext" or full path)
  var extension = extname('x.' + path)
    .toLowerCase()
    .substr(1)

  if (!extension) {
    return false
  }

  return exports.types[extension] || false
}

/**
 * Populate the extensions and types maps.
 * @private
 */

function populateMaps(extensions, types) {
  // source preference (least -> most)
  var preference = ['nginx', 'apache', undefined, 'iana']

  Object.keys(db).forEach(function forEachMimeType(type) {
    var mime = db[type]
    var exts = mime.extensions

    if (!exts || !exts.length) {
      return
    }

    // mime -> extensions
    extensions[type] = exts

    // extension -> mime
    for (var i = 0; i < exts.length; i++) {
      var extension = exts[i]

      if (types[extension]) {
        var from = preference.indexOf(db[types[extension]].source)
        var to = preference.indexOf(mime.source)

        if (types[extension] !== 'application/octet-stream'
          && from > to || (from === to && types[extension].substr(0, 12) === 'application/')) {
          // skip the remapping
          continue
        }
      }

      // set the extension -> mime
      types[extension] = type
    }
  })
}

},{"mime-db":461,"path":214}],460:[function(require,module,exports){
module.exports={
  "application/1d-interleaved-parityfec": {
    "source": "iana"
  },
  "application/3gpdash-qoe-report+xml": {
    "source": "iana"
  },
  "application/3gpp-ims+xml": {
    "source": "iana"
  },
  "application/a2l": {
    "source": "iana"
  },
  "application/activemessage": {
    "source": "iana"
  },
  "application/alto-costmap+json": {
    "source": "iana",
    "compressible": true
  },
  "application/alto-costmapfilter+json": {
    "source": "iana",
    "compressible": true
  },
  "application/alto-directory+json": {
    "source": "iana",
    "compressible": true
  },
  "application/alto-endpointcost+json": {
    "source": "iana",
    "compressible": true
  },
  "application/alto-endpointcostparams+json": {
    "source": "iana",
    "compressible": true
  },
  "application/alto-endpointprop+json": {
    "source": "iana",
    "compressible": true
  },
  "application/alto-endpointpropparams+json": {
    "source": "iana",
    "compressible": true
  },
  "application/alto-error+json": {
    "source": "iana",
    "compressible": true
  },
  "application/alto-networkmap+json": {
    "source": "iana",
    "compressible": true
  },
  "application/alto-networkmapfilter+json": {
    "source": "iana",
    "compressible": true
  },
  "application/aml": {
    "source": "iana"
  },
  "application/andrew-inset": {
    "source": "iana",
    "extensions": ["ez"]
  },
  "application/applefile": {
    "source": "iana"
  },
  "application/applixware": {
    "source": "apache",
    "extensions": ["aw"]
  },
  "application/atf": {
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    "extensions": ["sass"]
  },
  "text/x-scss": {
    "extensions": ["scss"]
  },
  "text/x-setext": {
    "source": "apache",
    "extensions": ["etx"]
  },
  "text/x-sfv": {
    "source": "apache",
    "extensions": ["sfv"]
  },
  "text/x-uuencode": {
    "source": "apache",
    "extensions": ["uu"]
  },
  "text/x-vcalendar": {
    "source": "apache",
    "extensions": ["vcs"]
  },
  "text/x-vcard": {
    "source": "apache",
    "extensions": ["vcf"]
  },
  "text/xml": {
    "source": "iana",
    "compressible": true,
    "extensions": ["xml"]
  },
  "text/xml-external-parsed-entity": {
    "source": "iana"
  },
  "text/yaml": {
    "extensions": ["yaml","yml"]
  },
  "video/1d-interleaved-parityfec": {
    "source": "apache"
  },
  "video/3gpp": {
    "source": "apache",
    "extensions": ["3gp","3gpp"]
  },
  "video/3gpp-tt": {
    "source": "apache"
  },
  "video/3gpp2": {
    "source": "apache",
    "extensions": ["3g2"]
  },
  "video/bmpeg": {
    "source": "apache"
  },
  "video/bt656": {
    "source": "apache"
  },
  "video/celb": {
    "source": "apache"
  },
  "video/dv": {
    "source": "apache"
  },
  "video/h261": {
    "source": "apache",
    "extensions": ["h261"]
  },
  "video/h263": {
    "source": "apache",
    "extensions": ["h263"]
  },
  "video/h263-1998": {
    "source": "apache"
  },
  "video/h263-2000": {
    "source": "apache"
  },
  "video/h264": {
    "source": "apache",
    "extensions": ["h264"]
  },
  "video/h264-rcdo": {
    "source": "apache"
  },
  "video/h264-svc": {
    "source": "apache"
  },
  "video/jpeg": {
    "source": "apache",
    "extensions": ["jpgv"]
  },
  "video/jpeg2000": {
    "source": "apache"
  },
  "video/jpm": {
    "source": "apache",
    "extensions": ["jpm","jpgm"]
  },
  "video/mj2": {
    "source": "apache",
    "extensions": ["mj2","mjp2"]
  },
  "video/mp1s": {
    "source": "apache"
  },
  "video/mp2p": {
    "source": "apache"
  },
  "video/mp2t": {
    "source": "apache",
    "extensions": ["ts"]
  },
  "video/mp4": {
    "source": "apache",
    "compressible": false,
    "extensions": ["mp4","mp4v","mpg4"]
  },
  "video/mp4v-es": {
    "source": "apache"
  },
  "video/mpeg": {
    "source": "apache",
    "compressible": false,
    "extensions": ["mpeg","mpg","mpe","m1v","m2v"]
  },
  "video/mpeg4-generic": {
    "source": "apache"
  },
  "video/mpv": {
    "source": "apache"
  },
  "video/nv": {
    "source": "apache"
  },
  "video/ogg": {
    "source": "apache",
    "compressible": false,
    "extensions": ["ogv"]
  },
  "video/parityfec": {
    "source": "apache"
  },
  "video/pointer": {
    "source": "apache"
  },
  "video/quicktime": {
    "source": "apache",
    "compressible": false,
    "extensions": ["qt","mov"]
  },
  "video/raw": {
    "source": "apache"
  },
  "video/rtp-enc-aescm128": {
    "source": "apache"
  },
  "video/rtx": {
    "source": "apache"
  },
  "video/smpte292m": {
    "source": "apache"
  },
  "video/ulpfec": {
    "source": "apache"
  },
  "video/vc1": {
    "source": "apache"
  },
  "video/vnd.cctv": {
    "source": "apache"
  },
  "video/vnd.dece.hd": {
    "source": "apache",
    "extensions": ["uvh","uvvh"]
  },
  "video/vnd.dece.mobile": {
    "source": "apache",
    "extensions": ["uvm","uvvm"]
  },
  "video/vnd.dece.mp4": {
    "source": "apache"
  },
  "video/vnd.dece.pd": {
    "source": "apache",
    "extensions": ["uvp","uvvp"]
  },
  "video/vnd.dece.sd": {
    "source": "apache",
    "extensions": ["uvs","uvvs"]
  },
  "video/vnd.dece.video": {
    "source": "apache",
    "extensions": ["uvv","uvvv"]
  },
  "video/vnd.directv.mpeg": {
    "source": "apache"
  },
  "video/vnd.directv.mpeg-tts": {
    "source": "apache"
  },
  "video/vnd.dlna.mpeg-tts": {
    "source": "apache"
  },
  "video/vnd.dvb.file": {
    "source": "apache",
    "extensions": ["dvb"]
  },
  "video/vnd.fvt": {
    "source": "apache",
    "extensions": ["fvt"]
  },
  "video/vnd.hns.video": {
    "source": "apache"
  },
  "video/vnd.iptvforum.1dparityfec-1010": {
    "source": "apache"
  },
  "video/vnd.iptvforum.1dparityfec-2005": {
    "source": "apache"
  },
  "video/vnd.iptvforum.2dparityfec-1010": {
    "source": "apache"
  },
  "video/vnd.iptvforum.2dparityfec-2005": {
    "source": "apache"
  },
  "video/vnd.iptvforum.ttsavc": {
    "source": "apache"
  },
  "video/vnd.iptvforum.ttsmpeg2": {
    "source": "apache"
  },
  "video/vnd.motorola.video": {
    "source": "apache"
  },
  "video/vnd.motorola.videop": {
    "source": "apache"
  },
  "video/vnd.mpegurl": {
    "source": "apache",
    "extensions": ["mxu","m4u"]
  },
  "video/vnd.ms-playready.media.pyv": {
    "source": "apache",
    "extensions": ["pyv"]
  },
  "video/vnd.nokia.interleaved-multimedia": {
    "source": "apache"
  },
  "video/vnd.nokia.videovoip": {
    "source": "apache"
  },
  "video/vnd.objectvideo": {
    "source": "apache"
  },
  "video/vnd.sealed.mpeg1": {
    "source": "apache"
  },
  "video/vnd.sealed.mpeg4": {
    "source": "apache"
  },
  "video/vnd.sealed.swf": {
    "source": "apache"
  },
  "video/vnd.sealedmedia.softseal.mov": {
    "source": "apache"
  },
  "video/vnd.uvvu.mp4": {
    "source": "apache",
    "extensions": ["uvu","uvvu"]
  },
  "video/vnd.vivo": {
    "source": "apache",
    "extensions": ["viv"]
  },
  "video/webm": {
    "source": "apache",
    "compressible": false,
    "extensions": ["webm"]
  },
  "video/x-f4v": {
    "source": "apache",
    "extensions": ["f4v"]
  },
  "video/x-fli": {
    "source": "apache",
    "extensions": ["fli"]
  },
  "video/x-flv": {
    "source": "apache",
    "compressible": false,
    "extensions": ["flv"]
  },
  "video/x-m4v": {
    "source": "apache",
    "extensions": ["m4v"]
  },
  "video/x-matroska": {
    "source": "apache",
    "compressible": false,
    "extensions": ["mkv","mk3d","mks"]
  },
  "video/x-mng": {
    "source": "apache",
    "extensions": ["mng"]
  },
  "video/x-ms-asf": {
    "source": "apache",
    "extensions": ["asf","asx"]
  },
  "video/x-ms-vob": {
    "source": "apache",
    "extensions": ["vob"]
  },
  "video/x-ms-wm": {
    "source": "apache",
    "extensions": ["wm"]
  },
  "video/x-ms-wmv": {
    "source": "apache",
    "compressible": false,
    "extensions": ["wmv"]
  },
  "video/x-ms-wmx": {
    "source": "apache",
    "extensions": ["wmx"]
  },
  "video/x-ms-wvx": {
    "source": "apache",
    "extensions": ["wvx"]
  },
  "video/x-msvideo": {
    "source": "apache",
    "extensions": ["avi"]
  },
  "video/x-sgi-movie": {
    "source": "apache",
    "extensions": ["movie"]
  },
  "video/x-smv": {
    "source": "apache",
    "extensions": ["smv"]
  },
  "x-conference/x-cooltalk": {
    "source": "apache",
    "extensions": ["ice"]
  },
  "x-shader/x-fragment": {
    "compressible": true
  },
  "x-shader/x-vertex": {
    "compressible": true
  }
}

},{}],461:[function(require,module,exports){
/*!
 * mime-db
 * Copyright(c) 2014 Jonathan Ong
 * MIT Licensed
 */

/**
 * Module exports.
 */

module.exports = require('./db.json')

},{"./db.json":460}],462:[function(require,module,exports){
//     uuid.js
//
//     Copyright (c) 2010-2012 Robert Kieffer
//     MIT License - http://opensource.org/licenses/mit-license.php

(function() {
  var _global = this;

  // Unique ID creation requires a high quality random # generator.  We feature
  // detect to determine the best RNG source, normalizing to a function that
  // returns 128-bits of randomness, since that's what's usually required
  var _rng;

  // Node.js crypto-based RNG - http://nodejs.org/docs/v0.6.2/api/crypto.html
  //
  // Moderately fast, high quality
  if (typeof(_global.require) == 'function') {
    try {
      var _rb = _global.require('crypto').randomBytes;
      _rng = _rb && function() {return _rb(16);};
    } catch(e) {}
  }

  if (!_rng && _global.crypto && crypto.getRandomValues) {
    // WHATWG crypto-based RNG - http://wiki.whatwg.org/wiki/Crypto
    //
    // Moderately fast, high quality
    var _rnds8 = new Uint8Array(16);
    _rng = function whatwgRNG() {
      crypto.getRandomValues(_rnds8);
      return _rnds8;
    };
  }

  if (!_rng) {
    // Math.random()-based (RNG)
    //
    // If all else fails, use Math.random().  It's fast, but is of unspecified
    // quality.
    var  _rnds = new Array(16);
    _rng = function() {
      for (var i = 0, r; i < 16; i++) {
        if ((i & 0x03) === 0) r = Math.random() * 0x100000000;
        _rnds[i] = r >>> ((i & 0x03) << 3) & 0xff;
      }

      return _rnds;
    };
  }

  // Buffer class to use
  var BufferClass = typeof(_global.Buffer) == 'function' ? _global.Buffer : Array;

  // Maps for number <-> hex string conversion
  var _byteToHex = [];
  var _hexToByte = {};
  for (var i = 0; i < 256; i++) {
    _byteToHex[i] = (i + 0x100).toString(16).substr(1);
    _hexToByte[_byteToHex[i]] = i;
  }

  // **`parse()` - Parse a UUID into it's component bytes**
  function parse(s, buf, offset) {
    var i = (buf && offset) || 0, ii = 0;

    buf = buf || [];
    s.toLowerCase().replace(/[0-9a-f]{2}/g, function(oct) {
      if (ii < 16) { // Don't overflow!
        buf[i + ii++] = _hexToByte[oct];
      }
    });

    // Zero out remaining bytes if string was short
    while (ii < 16) {
      buf[i + ii++] = 0;
    }

    return buf;
  }

  // **`unparse()` - Convert UUID byte array (ala parse()) into a string**
  function unparse(buf, offset) {
    var i = offset || 0, bth = _byteToHex;
    return  bth[buf[i++]] + bth[buf[i++]] +
            bth[buf[i++]] + bth[buf[i++]] + '-' +
            bth[buf[i++]] + bth[buf[i++]] + '-' +
            bth[buf[i++]] + bth[buf[i++]] + '-' +
            bth[buf[i++]] + bth[buf[i++]] + '-' +
            bth[buf[i++]] + bth[buf[i++]] +
            bth[buf[i++]] + bth[buf[i++]] +
            bth[buf[i++]] + bth[buf[i++]];
  }

  // **`v1()` - Generate time-based UUID**
  //
  // Inspired by https://github.com/LiosK/UUID.js
  // and http://docs.python.org/library/uuid.html

  // random #'s we need to init node and clockseq
  var _seedBytes = _rng();

  // Per 4.5, create and 48-bit node id, (47 random bits + multicast bit = 1)
  var _nodeId = [
    _seedBytes[0] | 0x01,
    _seedBytes[1], _seedBytes[2], _seedBytes[3], _seedBytes[4], _seedBytes[5]
  ];

  // Per 4.2.2, randomize (14 bit) clockseq
  var _clockseq = (_seedBytes[6] << 8 | _seedBytes[7]) & 0x3fff;

  // Previous uuid creation time
  var _lastMSecs = 0, _lastNSecs = 0;

  // See https://github.com/broofa/node-uuid for API details
  function v1(options, buf, offset) {
    var i = buf && offset || 0;
    var b = buf || [];

    options = options || {};

    var clockseq = options.clockseq != null ? options.clockseq : _clockseq;

    // UUID timestamps are 100 nano-second units since the Gregorian epoch,
    // (1582-10-15 00:00).  JSNumbers aren't precise enough for this, so
    // time is handled internally as 'msecs' (integer milliseconds) and 'nsecs'
    // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00.
    var msecs = options.msecs != null ? options.msecs : new Date().getTime();

    // Per 4.2.1.2, use count of uuid's generated during the current clock
    // cycle to simulate higher resolution clock
    var nsecs = options.nsecs != null ? options.nsecs : _lastNSecs + 1;

    // Time since last uuid creation (in msecs)
    var dt = (msecs - _lastMSecs) + (nsecs - _lastNSecs)/10000;

    // Per 4.2.1.2, Bump clockseq on clock regression
    if (dt < 0 && options.clockseq == null) {
      clockseq = clockseq + 1 & 0x3fff;
    }

    // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new
    // time interval
    if ((dt < 0 || msecs > _lastMSecs) && options.nsecs == null) {
      nsecs = 0;
    }

    // Per 4.2.1.2 Throw error if too many uuids are requested
    if (nsecs >= 10000) {
      throw new Error('uuid.v1(): Can\'t create more than 10M uuids/sec');
    }

    _lastMSecs = msecs;
    _lastNSecs = nsecs;
    _clockseq = clockseq;

    // Per 4.1.4 - Convert from unix epoch to Gregorian epoch
    msecs += 12219292800000;

    // `time_low`
    var tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000;
    b[i++] = tl >>> 24 & 0xff;
    b[i++] = tl >>> 16 & 0xff;
    b[i++] = tl >>> 8 & 0xff;
    b[i++] = tl & 0xff;

    // `time_mid`
    var tmh = (msecs / 0x100000000 * 10000) & 0xfffffff;
    b[i++] = tmh >>> 8 & 0xff;
    b[i++] = tmh & 0xff;

    // `time_high_and_version`
    b[i++] = tmh >>> 24 & 0xf | 0x10; // include version
    b[i++] = tmh >>> 16 & 0xff;

    // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant)
    b[i++] = clockseq >>> 8 | 0x80;

    // `clock_seq_low`
    b[i++] = clockseq & 0xff;

    // `node`
    var node = options.node || _nodeId;
    for (var n = 0; n < 6; n++) {
      b[i + n] = node[n];
    }

    return buf ? buf : unparse(b);
  }

  // **`v4()` - Generate random UUID**

  // See https://github.com/broofa/node-uuid for API details
  function v4(options, buf, offset) {
    // Deprecated - 'format' argument, as supported in v1.2
    var i = buf && offset || 0;

    if (typeof(options) == 'string') {
      buf = options == 'binary' ? new BufferClass(16) : null;
      options = null;
    }
    options = options || {};

    var rnds = options.random || (options.rng || _rng)();

    // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
    rnds[6] = (rnds[6] & 0x0f) | 0x40;
    rnds[8] = (rnds[8] & 0x3f) | 0x80;

    // Copy bytes to buffer, if provided
    if (buf) {
      for (var ii = 0; ii < 16; ii++) {
        buf[i + ii] = rnds[ii];
      }
    }

    return buf || unparse(rnds);
  }

  // Export public API
  var uuid = v4;
  uuid.v1 = v1;
  uuid.v4 = v4;
  uuid.parse = parse;
  uuid.unparse = unparse;
  uuid.BufferClass = BufferClass;

  if (typeof(module) != 'undefined' && module.exports) {
    // Publish as node.js module
    module.exports = uuid;
  } else  if (typeof define === 'function' && define.amd) {
    // Publish as AMD module
    define(function() {return uuid;});
 

  } else {
    // Publish as global (in browsers)
    var _previousRoot = _global.uuid;

    // **`noConflict()` - (browser only) to reset global 'uuid' var**
    uuid.noConflict = function() {
      _global.uuid = _previousRoot;
      return uuid;
    };

    _global.uuid = uuid;
  }
}).call(this);

},{}],463:[function(require,module,exports){
var crypto = require('crypto')
  , qs = require('querystring')
  ;

function sha1 (key, body) {
  return crypto.createHmac('sha1', key).update(body).digest('base64')
}

function rsa (key, body) {
  return crypto.createSign("RSA-SHA1").update(body).sign(key, 'base64');
}

function rfc3986 (str) {
  return encodeURIComponent(str)
    .replace(/!/g,'%21')
    .replace(/\*/g,'%2A')
    .replace(/\(/g,'%28')
    .replace(/\)/g,'%29')
    .replace(/'/g,'%27')
    ;
}

// Maps object to bi-dimensional array
// Converts { foo: 'A', bar: [ 'b', 'B' ]} to
// [ ['foo', 'A'], ['bar', 'b'], ['bar', 'B'] ]
function map (obj) {
  var key, val, arr = []
  for (key in obj) {
    val = obj[key]
    if (Array.isArray(val))
      for (var i = 0; i < val.length; i++)
        arr.push([key, val[i]])
    else if (typeof val === "object")
      for (var prop in val)
        arr.push([key + '[' + prop + ']', val[prop]]);
    else
      arr.push([key, val])
  }
  return arr
}

// Compare function for sort
function compare (a, b) {
  return a > b ? 1 : a < b ? -1 : 0
}

function generateBase (httpMethod, base_uri, params) {
  // adapted from https://dev.twitter.com/docs/auth/oauth and 
  // https://dev.twitter.com/docs/auth/creating-signature

  // Parameter normalization
  // http://tools.ietf.org/html/rfc5849#section-3.4.1.3.2
  var normalized = map(params)
  // 1.  First, the name and value of each parameter are encoded
  .map(function (p) {
    return [ rfc3986(p[0]), rfc3986(p[1] || '') ]
  })
  // 2.  The parameters are sorted by name, using ascending byte value
  //     ordering.  If two or more parameters share the same name, they
  //     are sorted by their value.
  .sort(function (a, b) {
    return compare(a[0], b[0]) || compare(a[1], b[1])
  })
  // 3.  The name of each parameter is concatenated to its corresponding
  //     value using an "=" character (ASCII code 61) as a separator, even
  //     if the value is empty.
  .map(function (p) { return p.join('=') })
   // 4.  The sorted name/value pairs are concatenated together into a
   //     single string by using an "&" character (ASCII code 38) as
   //     separator.
  .join('&')

  var base = [
    rfc3986(httpMethod ? httpMethod.toUpperCase() : 'GET'),
    rfc3986(base_uri),
    rfc3986(normalized)
  ].join('&')

  return base
}

function hmacsign (httpMethod, base_uri, params, consumer_secret, token_secret) {
  var base = generateBase(httpMethod, base_uri, params)
  var key = [
    consumer_secret || '',
    token_secret || ''
  ].map(rfc3986).join('&')

  return sha1(key, base)
}

function rsasign (httpMethod, base_uri, params, private_key, token_secret) {
  var base = generateBase(httpMethod, base_uri, params)
  var key = private_key || ''

  return rsa(key, base)
}

function plaintext (consumer_secret, token_secret) {
  var key = [
    consumer_secret || '',
    token_secret || ''
  ].map(rfc3986).join('&')

  return key
}

function sign (signMethod, httpMethod, base_uri, params, consumer_secret, token_secret) {
  var method
  var skipArgs = 1

  switch (signMethod) {
    case 'RSA-SHA1':
      method = rsasign
      break
    case 'HMAC-SHA1':
      method = hmacsign
      break
    case 'PLAINTEXT':
      method = plaintext
      skipArgs = 4
      break
    default:
     throw new Error("Signature method not supported: " + signMethod)
  }

  return method.apply(null, [].slice.call(arguments, skipArgs))
}

exports.hmacsign = hmacsign
exports.rsasign = rsasign
exports.plaintext = plaintext
exports.sign = sign
exports.rfc3986 = rfc3986

},{"crypto":22,"querystring":219}],464:[function(require,module,exports){
// Load modules

var Stringify = require('./stringify');
var Parse = require('./parse');


// Declare internals

var internals = {};


module.exports = {
    stringify: Stringify,
    parse: Parse
};

},{"./parse":465,"./stringify":466}],465:[function(require,module,exports){
// Load modules

var Utils = require('./utils');


// Declare internals

var internals = {
    delimiter: '&',
    depth: 5,
    arrayLimit: 20,
    parameterLimit: 1000,
    strictNullHandling: false,
    plainObjects: false,
    allowPrototypes: false,
    allowDots: false
};


internals.parseValues = function (str, options) {

    var obj = {};
    var parts = str.split(options.delimiter, options.parameterLimit === Infinity ? undefined : options.parameterLimit);

    for (var i = 0, il = parts.length; i < il; ++i) {
        var part = parts[i];
        var pos = part.indexOf(']=') === -1 ? part.indexOf('=') : part.indexOf(']=') + 1;

        if (pos === -1) {
            obj[Utils.decode(part)] = '';

            if (options.strictNullHandling) {
                obj[Utils.decode(part)] = null;
            }
        }
        else {
            var key = Utils.decode(part.slice(0, pos));
            var val = Utils.decode(part.slice(pos + 1));

            if (!Object.prototype.hasOwnProperty.call(obj, key)) {
                obj[key] = val;
            }
            else {
                obj[key] = [].concat(obj[key]).concat(val);
            }
        }
    }

    return obj;
};


internals.parseObject = function (chain, val, options) {

    if (!chain.length) {
        return val;
    }

    var root = chain.shift();

    var obj;
    if (root === '[]') {
        obj = [];
        obj = obj.concat(internals.parseObject(chain, val, options));
    }
    else {
        obj = options.plainObjects ? Object.create(null) : {};
        var cleanRoot = root[0] === '[' && root[root.length - 1] === ']' ? root.slice(1, root.length - 1) : root;
        var index = parseInt(cleanRoot, 10);
        var indexString = '' + index;
        if (!isNaN(index) &&
            root !== cleanRoot &&
            indexString === cleanRoot &&
            index >= 0 &&
            (options.parseArrays &&
             index <= options.arrayLimit)) {

            obj = [];
            obj[index] = internals.parseObject(chain, val, options);
        }
        else {
            obj[cleanRoot] = internals.parseObject(chain, val, options);
        }
    }

    return obj;
};


internals.parseKeys = function (key, val, options) {

    if (!key) {
        return;
    }

    // Transform dot notation to bracket notation

    if (options.allowDots) {
        key = key.replace(/\.([^\.\[]+)/g, '[$1]');
    }

    // The regex chunks

    var parent = /^([^\[\]]*)/;
    var child = /(\[[^\[\]]*\])/g;

    // Get the parent

    var segment = parent.exec(key);

    // Stash the parent if it exists

    var keys = [];
    if (segment[1]) {
        // If we aren't using plain objects, optionally prefix keys
        // that would overwrite object prototype properties
        if (!options.plainObjects &&
            Object.prototype.hasOwnProperty(segment[1])) {

            if (!options.allowPrototypes) {
                return;
            }
        }

        keys.push(segment[1]);
    }

    // Loop through children appending to the array until we hit depth

    var i = 0;
    while ((segment = child.exec(key)) !== null && i < options.depth) {

        ++i;
        if (!options.plainObjects &&
            Object.prototype.hasOwnProperty(segment[1].replace(/\[|\]/g, ''))) {

            if (!options.allowPrototypes) {
                continue;
            }
        }
        keys.push(segment[1]);
    }

    // If there's a remainder, just add whatever is left

    if (segment) {
        keys.push('[' + key.slice(segment.index) + ']');
    }

    return internals.parseObject(keys, val, options);
};


module.exports = function (str, options) {

    options = options || {};
    options.delimiter = typeof options.delimiter === 'string' || Utils.isRegExp(options.delimiter) ? options.delimiter : internals.delimiter;
    options.depth = typeof options.depth === 'number' ? options.depth : internals.depth;
    options.arrayLimit = typeof options.arrayLimit === 'number' ? options.arrayLimit : internals.arrayLimit;
    options.parseArrays = options.parseArrays !== false;
    options.allowDots = typeof options.allowDots === 'boolean' ? options.allowDots : internals.allowDots;
    options.plainObjects = typeof options.plainObjects === 'boolean' ? options.plainObjects : internals.plainObjects;
    options.allowPrototypes = typeof options.allowPrototypes === 'boolean' ? options.allowPrototypes : internals.allowPrototypes;
    options.parameterLimit = typeof options.parameterLimit === 'number' ? options.parameterLimit : internals.parameterLimit;
    options.strictNullHandling = typeof options.strictNullHandling === 'boolean' ? options.strictNullHandling : internals.strictNullHandling;

    if (str === '' ||
        str === null ||
        typeof str === 'undefined') {

        return options.plainObjects ? Object.create(null) : {};
    }

    var tempObj = typeof str === 'string' ? internals.parseValues(str, options) : str;
    var obj = options.plainObjects ? Object.create(null) : {};

    // Iterate over the keys and setup the new object

    var keys = Object.keys(tempObj);
    for (var i = 0, il = keys.length; i < il; ++i) {
        var key = keys[i];
        var newObj = internals.parseKeys(key, tempObj[key], options);
        obj = Utils.merge(obj, newObj, options);
    }

    return Utils.compact(obj);
};

},{"./utils":467}],466:[function(require,module,exports){
// Load modules

var Utils = require('./utils');


// Declare internals

var internals = {
    delimiter: '&',
    arrayPrefixGenerators: {
        brackets: function (prefix, key) {

            return prefix + '[]';
        },
        indices: function (prefix, key) {

            return prefix + '[' + key + ']';
        },
        repeat: function (prefix, key) {

            return prefix;
        }
    },
    strictNullHandling: false,
    skipNulls: false,
    encode: true
};


internals.stringify = function (obj, prefix, generateArrayPrefix, strictNullHandling, skipNulls, encode, filter, sort) {

    if (typeof filter === 'function') {
        obj = filter(prefix, obj);
    }
    else if (Utils.isBuffer(obj)) {
        obj = obj.toString();
    }
    else if (obj instanceof Date) {
        obj = obj.toISOString();
    }
    else if (obj === null) {
        if (strictNullHandling) {
            return encode ? Utils.encode(prefix) : prefix;
        }

        obj = '';
    }

    if (typeof obj === 'string' ||
        typeof obj === 'number' ||
        typeof obj === 'boolean') {

        if (encode) {
            return [Utils.encode(prefix) + '=' + Utils.encode(obj)];
        }
        return [prefix + '=' + obj];
    }

    var values = [];

    if (typeof obj === 'undefined') {
        return values;
    }

    var objKeys;
    if (Array.isArray(filter)) {
        objKeys = filter;
    } else {
        var keys = Object.keys(obj);
        objKeys = sort ? keys.sort(sort) : keys;
    }

    for (var i = 0, il = objKeys.length; i < il; ++i) {
        var key = objKeys[i];

        if (skipNulls &&
            obj[key] === null) {

            continue;
        }

        if (Array.isArray(obj)) {
            values = values.concat(internals.stringify(obj[key], generateArrayPrefix(prefix, key), generateArrayPrefix, strictNullHandling, skipNulls, encode, filter));
        }
        else {
            values = values.concat(internals.stringify(obj[key], prefix + '[' + key + ']', generateArrayPrefix, strictNullHandling, skipNulls, encode, filter));
        }
    }

    return values;
};


module.exports = function (obj, options) {

    options = options || {};
    var delimiter = typeof options.delimiter === 'undefined' ? internals.delimiter : options.delimiter;
    var strictNullHandling = typeof options.strictNullHandling === 'boolean' ? options.strictNullHandling : internals.strictNullHandling;
    var skipNulls = typeof options.skipNulls === 'boolean' ? options.skipNulls : internals.skipNulls;
    var encode = typeof options.encode === 'boolean' ? options.encode : internals.encode;
    var sort = typeof options.sort === 'function' ? options.sort : null;
    var objKeys;
    var filter;
    if (typeof options.filter === 'function') {
        filter = options.filter;
        obj = filter('', obj);
    }
    else if (Array.isArray(options.filter)) {
        objKeys = filter = options.filter;
    }

    var keys = [];

    if (typeof obj !== 'object' ||
        obj === null) {

        return '';
    }

    var arrayFormat;
    if (options.arrayFormat in internals.arrayPrefixGenerators) {
        arrayFormat = options.arrayFormat;
    }
    else if ('indices' in options) {
        arrayFormat = options.indices ? 'indices' : 'repeat';
    }
    else {
        arrayFormat = 'indices';
    }

    var generateArrayPrefix = internals.arrayPrefixGenerators[arrayFormat];

    if (!objKeys) {
        objKeys = Object.keys(obj);
    }

    if (sort) {
        objKeys.sort(sort);
    }

    for (var i = 0, il = objKeys.length; i < il; ++i) {
        var key = objKeys[i];

        if (skipNulls &&
            obj[key] === null) {

            continue;
        }

        keys = keys.concat(internals.stringify(obj[key], key, generateArrayPrefix, strictNullHandling, skipNulls, encode, filter, sort));
    }

    return keys.join(delimiter);
};

},{"./utils":467}],467:[function(require,module,exports){
// Load modules


// Declare internals

var internals = {};
internals.hexTable = new Array(256);
for (var h = 0; h < 256; ++h) {
    internals.hexTable[h] = '%' + ((h < 16 ? '0' : '') + h.toString(16)).toUpperCase();
}


exports.arrayToObject = function (source, options) {

    var obj = options.plainObjects ? Object.create(null) : {};
    for (var i = 0, il = source.length; i < il; ++i) {
        if (typeof source[i] !== 'undefined') {

            obj[i] = source[i];
        }
    }

    return obj;
};


exports.merge = function (target, source, options) {

    if (!source) {
        return target;
    }

    if (typeof source !== 'object') {
        if (Array.isArray(target)) {
            target.push(source);
        }
        else if (typeof target === 'object') {
            target[source] = true;
        }
        else {
            target = [target, source];
        }

        return target;
    }

    if (typeof target !== 'object') {
        target = [target].concat(source);
        return target;
    }

    if (Array.isArray(target) &&
        !Array.isArray(source)) {

        target = exports.arrayToObject(target, options);
    }

    var keys = Object.keys(source);
    for (var k = 0, kl = keys.length; k < kl; ++k) {
        var key = keys[k];
        var value = source[key];

        if (!Object.prototype.hasOwnProperty.call(target, key)) {
            target[key] = value;
        }
        else {
            target[key] = exports.merge(target[key], value, options);
        }
    }

    return target;
};


exports.decode = function (str) {

    try {
        return decodeURIComponent(str.replace(/\+/g, ' '));
    } catch (e) {
        return str;
    }
};

exports.encode = function (str) {

    // This code was originally written by Brian White (mscdex) for the io.js core querystring library.
    // It has been adapted here for stricter adherence to RFC 3986
    if (str.length === 0) {
        return str;
    }

    if (typeof str !== 'string') {
        str = '' + str;
    }

    var out = '';
    for (var i = 0, il = str.length; i < il; ++i) {
        var c = str.charCodeAt(i);

        if (c === 0x2D || // -
            c === 0x2E || // .
            c === 0x5F || // _
            c === 0x7E || // ~
            (c >= 0x30 && c <= 0x39) || // 0-9
            (c >= 0x41 && c <= 0x5A) || // a-z
            (c >= 0x61 && c <= 0x7A)) { // A-Z

            out += str[i];
            continue;
        }

        if (c < 0x80) {
            out += internals.hexTable[c];
            continue;
        }

        if (c < 0x800) {
            out += internals.hexTable[0xC0 | (c >> 6)] + internals.hexTable[0x80 | (c & 0x3F)];
            continue;
        }

        if (c < 0xD800 || c >= 0xE000) {
            out += internals.hexTable[0xE0 | (c >> 12)] + internals.hexTable[0x80 | ((c >> 6) & 0x3F)] + internals.hexTable[0x80 | (c & 0x3F)];
            continue;
        }

        ++i;
        c = 0x10000 + (((c & 0x3FF) << 10) | (str.charCodeAt(i) & 0x3FF));
        out += internals.hexTable[0xF0 | (c >> 18)] + internals.hexTable[0x80 | ((c >> 12) & 0x3F)] + internals.hexTable[0x80 | ((c >> 6) & 0x3F)] + internals.hexTable[0x80 | (c & 0x3F)];
    }

    return out;
};

exports.compact = function (obj, refs) {

    if (typeof obj !== 'object' ||
        obj === null) {

        return obj;
    }

    refs = refs || [];
    var lookup = refs.indexOf(obj);
    if (lookup !== -1) {
        return refs[lookup];
    }

    refs.push(obj);

    if (Array.isArray(obj)) {
        var compacted = [];

        for (var i = 0, il = obj.length; i < il; ++i) {
            if (typeof obj[i] !== 'undefined') {
                compacted.push(obj[i]);
            }
        }

        return compacted;
    }

    var keys = Object.keys(obj);
    for (i = 0, il = keys.length; i < il; ++i) {
        var key = keys[i];
        obj[key] = exports.compact(obj[key], refs);
    }

    return obj;
};


exports.isRegExp = function (obj) {

    return Object.prototype.toString.call(obj) === '[object RegExp]';
};


exports.isBuffer = function (obj) {

    if (obj === null ||
        typeof obj === 'undefined') {

        return false;
    }

    return !!(obj.constructor &&
              obj.constructor.isBuffer &&
              obj.constructor.isBuffer(obj));
};

},{}],468:[function(require,module,exports){
(function (Buffer){
var util = require('util')
var Stream = require('stream')
var StringDecoder = require('string_decoder').StringDecoder

module.exports = StringStream
module.exports.AlignedStringDecoder = AlignedStringDecoder

function StringStream(from, to) {
  if (!(this instanceof StringStream)) return new StringStream(from, to)

  Stream.call(this)

  if (from == null) from = 'utf8'

  this.readable = this.writable = true
  this.paused = false
  this.toEncoding = (to == null ? from : to)
  this.fromEncoding = (to == null ? '' : from)
  this.decoder = new AlignedStringDecoder(this.toEncoding)
}
util.inherits(StringStream, Stream)

StringStream.prototype.write = function(data) {
  if (!this.writable) {
    var err = new Error('stream not writable')
    err.code = 'EPIPE'
    this.emit('error', err)
    return false
  }
  if (this.fromEncoding) {
    if (Buffer.isBuffer(data)) data = data.toString()
    data = new Buffer(data, this.fromEncoding)
  }
  var string = this.decoder.write(data)
  if (string.length) this.emit('data', string)
  return !this.paused
}

StringStream.prototype.flush = function() {
  if (this.decoder.flush) {
    var string = this.decoder.flush()
    if (string.length) this.emit('data', string)
  }
}

StringStream.prototype.end = function() {
  if (!this.writable && !this.readable) return
  this.flush()
  this.emit('end')
  this.writable = this.readable = false
  this.destroy()
}

StringStream.prototype.destroy = function() {
  this.decoder = null
  this.writable = this.readable = false
  this.emit('close')
}

StringStream.prototype.pause = function() {
  this.paused = true
}

StringStream.prototype.resume = function () {
  if (this.paused) this.emit('drain')
  this.paused = false
}

function AlignedStringDecoder(encoding) {
  StringDecoder.call(this, encoding)

  switch (this.encoding) {
    case 'base64':
      this.write = alignedWrite
      this.alignedBuffer = new Buffer(3)
      this.alignedBytes = 0
      break
  }
}
util.inherits(AlignedStringDecoder, StringDecoder)

AlignedStringDecoder.prototype.flush = function() {
  if (!this.alignedBuffer || !this.alignedBytes) return ''
  var leftover = this.alignedBuffer.toString(this.encoding, 0, this.alignedBytes)
  this.alignedBytes = 0
  return leftover
}

function alignedWrite(buffer) {
  var rem = (this.alignedBytes + buffer.length) % this.alignedBuffer.length
  if (!rem && !this.alignedBytes) return buffer.toString(this.encoding)

  var returnBuffer = new Buffer(this.alignedBytes + buffer.length - rem)

  this.alignedBuffer.copy(returnBuffer, 0, 0, this.alignedBytes)
  buffer.copy(returnBuffer, this.alignedBytes, 0, buffer.length - rem)

  buffer.copy(this.alignedBuffer, 0, buffer.length - rem, buffer.length)
  this.alignedBytes = rem

  return returnBuffer.toString(this.encoding)
}

}).call(this,require("buffer").Buffer)
},{"buffer":18,"stream":233,"string_decoder":243,"util":247}],469:[function(require,module,exports){
/*!
 * Copyright (c) 2015, Salesforce.com, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of Salesforce.com nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
'use strict';
var net = require('net');
var urlParse = require('url').parse;
var pubsuffix = require('./pubsuffix');
var Store = require('./store').Store;
var MemoryCookieStore = require('./memstore').MemoryCookieStore;
var pathMatch = require('./pathMatch').pathMatch;
var VERSION = require('../package.json').version;

var punycode;
try {
  punycode = require('punycode');
} catch(e) {
  console.warn("cookie: can't load punycode; won't use punycode for domain normalization");
}

var DATE_DELIM = /[\x09\x20-\x2F\x3B-\x40\x5B-\x60\x7B-\x7E]/;

// From RFC6265 S4.1.1
// note that it excludes \x3B ";"
var COOKIE_OCTET  = /[\x21\x23-\x2B\x2D-\x3A\x3C-\x5B\x5D-\x7E]/;
var COOKIE_OCTETS = new RegExp('^'+COOKIE_OCTET.source+'+$');

var CONTROL_CHARS = /[\x00-\x1F]/;

// Double quotes are part of the value (see: S4.1.1).
// '\r', '\n' and '\0' should be treated as a terminator in the "relaxed" mode
// (see: https://github.com/ChromiumWebApps/chromium/blob/b3d3b4da8bb94c1b2e061600df106d590fda3620/net/cookies/parsed_cookie.cc#L60)
// '=' and ';' are attribute/values separators
// (see: https://github.com/ChromiumWebApps/chromium/blob/b3d3b4da8bb94c1b2e061600df106d590fda3620/net/cookies/parsed_cookie.cc#L64)
var COOKIE_PAIR = /^(([^=;]+))\s*=\s*(("?)[^\n\r\0]*\3)/

// Used to parse non-RFC-compliant cookies like '=abc' when given the `loose`
// option in Cookie.parse:
var LOOSE_COOKIE_PAIR = /^((?:=)?([^=;]*)\s*=\s*)?(("?)[^\n\r\0]*\3)/;

// RFC6265 S4.1.1 defines path value as 'any CHAR except CTLs or ";"'
// Note ';' is \x3B
var PATH_VALUE = /[\x20-\x3A\x3C-\x7E]+/;

// Used for checking whether or not there is a trailing semi-colon
var TRAILING_SEMICOLON = /;+$/;

var DAY_OF_MONTH = /^(\d{1,2})[^\d]*$/;
var TIME = /^(\d{1,2})[^\d]*:(\d{1,2})[^\d]*:(\d{1,2})[^\d]*$/;
var MONTH = /^(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)/i;

var MONTH_TO_NUM = {
  jan:0, feb:1, mar:2, apr:3, may:4, jun:5,
  jul:6, aug:7, sep:8, oct:9, nov:10, dec:11
};
var NUM_TO_MONTH = [
  'Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'
];
var NUM_TO_DAY = [
  'Sun','Mon','Tue','Wed','Thu','Fri','Sat'
];

var YEAR = /^(\d{2}|\d{4})$/; // 2 to 4 digits

var MAX_TIME = 2147483647000; // 31-bit max
var MIN_TIME = 0; // 31-bit min


// RFC6265 S5.1.1 date parser:
function parseDate(str) {
  if (!str) {
    return;
  }

  /* RFC6265 S5.1.1:
   * 2. Process each date-token sequentially in the order the date-tokens
   * appear in the cookie-date
   */
  var tokens = str.split(DATE_DELIM);
  if (!tokens) {
    return;
  }

  var hour = null;
  var minutes = null;
  var seconds = null;
  var day = null;
  var month = null;
  var year = null;

  for (var i=0; i<tokens.length; i++) {
    var token = tokens[i].trim();
    if (!token.length) {
      continue;
    }

    var result;

    /* 2.1. If the found-time flag is not set and the token matches the time
     * production, set the found-time flag and set the hour- value,
     * minute-value, and second-value to the numbers denoted by the digits in
     * the date-token, respectively.  Skip the remaining sub-steps and continue
     * to the next date-token.
     */
    if (seconds === null) {
      result = TIME.exec(token);
      if (result) {
        hour = parseInt(result[1], 10);
        minutes = parseInt(result[2], 10);
        seconds = parseInt(result[3], 10);
        /* RFC6265 S5.1.1.5:
         * [fail if]
         * *  the hour-value is greater than 23,
         * *  the minute-value is greater than 59, or
         * *  the second-value is greater than 59.
         */
        if(hour > 23 || minutes > 59 || seconds > 59) {
          return;
        }

        continue;
      }
    }

    /* 2.2. If the found-day-of-month flag is not set and the date-token matches
     * the day-of-month production, set the found-day-of- month flag and set
     * the day-of-month-value to the number denoted by the date-token.  Skip
     * the remaining sub-steps and continue to the next date-token.
     */
    if (day === null) {
      result = DAY_OF_MONTH.exec(token);
      if (result) {
        day = parseInt(result, 10);
        /* RFC6265 S5.1.1.5:
         * [fail if] the day-of-month-value is less than 1 or greater than 31
         */
        if(day < 1 || day > 31) {
          return;
        }
        continue;
      }
    }

    /* 2.3. If the found-month flag is not set and the date-token matches the
     * month production, set the found-month flag and set the month-value to
     * the month denoted by the date-token.  Skip the remaining sub-steps and
     * continue to the next date-token.
     */
    if (month === null) {
      result = MONTH.exec(token);
      if (result) {
        month = MONTH_TO_NUM[result[1].toLowerCase()];
        continue;
      }
    }

    /* 2.4. If the found-year flag is not set and the date-token matches the year
     * production, set the found-year flag and set the year-value to the number
     * denoted by the date-token.  Skip the remaining sub-steps and continue to
     * the next date-token.
     */
    if (year === null) {
      result = YEAR.exec(token);
      if (result) {
        year = parseInt(result[0], 10);
        /* From S5.1.1:
         * 3.  If the year-value is greater than or equal to 70 and less
         * than or equal to 99, increment the year-value by 1900.
         * 4.  If the year-value is greater than or equal to 0 and less
         * than or equal to 69, increment the year-value by 2000.
         */
        if (70 <= year && year <= 99) {
          year += 1900;
        } else if (0 <= year && year <= 69) {
          year += 2000;
        }

        if (year < 1601) {
          return; // 5. ... the year-value is less than 1601
        }
      }
    }
  }

  if (seconds === null || day === null || month === null || year === null) {
    return; // 5. ... at least one of the found-day-of-month, found-month, found-
            // year, or found-time flags is not set,
  }

  return new Date(Date.UTC(year, month, day, hour, minutes, seconds));
}

function formatDate(date) {
  var d = date.getUTCDate(); d = d >= 10 ? d : '0'+d;
  var h = date.getUTCHours(); h = h >= 10 ? h : '0'+h;
  var m = date.getUTCMinutes(); m = m >= 10 ? m : '0'+m;
  var s = date.getUTCSeconds(); s = s >= 10 ? s : '0'+s;
  return NUM_TO_DAY[date.getUTCDay()] + ', ' +
    d+' '+ NUM_TO_MONTH[date.getUTCMonth()] +' '+ date.getUTCFullYear() +' '+
    h+':'+m+':'+s+' GMT';
}

// S5.1.2 Canonicalized Host Names
function canonicalDomain(str) {
  if (str == null) {
    return null;
  }
  str = str.trim().replace(/^\./,''); // S4.1.2.3 & S5.2.3: ignore leading .

  // convert to IDN if any non-ASCII characters
  if (punycode && /[^\u0001-\u007f]/.test(str)) {
    str = punycode.toASCII(str);
  }

  return str.toLowerCase();
}

// S5.1.3 Domain Matching
function domainMatch(str, domStr, canonicalize) {
  if (str == null || domStr == null) {
    return null;
  }
  if (canonicalize !== false) {
    str = canonicalDomain(str);
    domStr = canonicalDomain(domStr);
  }

  /*
   * "The domain string and the string are identical. (Note that both the
   * domain string and the string will have been canonicalized to lower case at
   * this point)"
   */
  if (str == domStr) {
    return true;
  }

  /* "All of the following [three] conditions hold:" (order adjusted from the RFC) */

  /* "* The string is a host name (i.e., not an IP address)." */
  if (net.isIP(str)) {
    return false;
  }

  /* "* The domain string is a suffix of the string" */
  var idx = str.indexOf(domStr);
  if (idx <= 0) {
    return false; // it's a non-match (-1) or prefix (0)
  }

  // e.g "a.b.c".indexOf("b.c") === 2
  // 5 === 3+2
  if (str.length !== domStr.length + idx) { // it's not a suffix
    return false;
  }

  /* "* The last character of the string that is not included in the domain
  * string is a %x2E (".") character." */
  if (str.substr(idx-1,1) !== '.') {
    return false;
  }

  return true;
}


// RFC6265 S5.1.4 Paths and Path-Match

/*
 * "The user agent MUST use an algorithm equivalent to the following algorithm
 * to compute the default-path of a cookie:"
 *
 * Assumption: the path (and not query part or absolute uri) is passed in.
 */
function defaultPath(path) {
  // "2. If the uri-path is empty or if the first character of the uri-path is not
  // a %x2F ("/") character, output %x2F ("/") and skip the remaining steps.
  if (!path || path.substr(0,1) !== "/") {
    return "/";
  }

  // "3. If the uri-path contains no more than one %x2F ("/") character, output
  // %x2F ("/") and skip the remaining step."
  if (path === "/") {
    return path;
  }

  var rightSlash = path.lastIndexOf("/");
  if (rightSlash === 0) {
    return "/";
  }

  // "4. Output the characters of the uri-path from the first character up to,
  // but not including, the right-most %x2F ("/")."
  return path.slice(0, rightSlash);
}


function parse(str, options) {
  if (!options || typeof options !== 'object') {
    options = {};
  }
  str = str.trim();

  // S4.1.1 Trailing semi-colons are not part of the specification.
  var semiColonCheck = TRAILING_SEMICOLON.exec(str);
  if (semiColonCheck) {
    str = str.slice(0, semiColonCheck.index);
  }

  // We use a regex to parse the "name-value-pair" part of S5.2
  var firstSemi = str.indexOf(';'); // S5.2 step 1
  var pairRe = options.loose ? LOOSE_COOKIE_PAIR : COOKIE_PAIR;
  var result = pairRe.exec(firstSemi === -1 ? str : str.substr(0,firstSemi));

  // Rx satisfies the "the name string is empty" and "lacks a %x3D ("=")"
  // constraints as well as trimming any whitespace.
  if (!result) {
    return;
  }

  var c = new Cookie();
  if (result[1]) {
    c.key = result[2].trim();
  } else {
    c.key = '';
  }
  c.value = result[3].trim();
  if (CONTROL_CHARS.test(c.key) || CONTROL_CHARS.test(c.value)) {
    return;
  }

  if (firstSemi === -1) {
    return c;
  }

  // S5.2.3 "unparsed-attributes consist of the remainder of the set-cookie-string
  // (including the %x3B (";") in question)." plus later on in the same section
  // "discard the first ";" and trim".
  var unparsed = str.slice(firstSemi).replace(/^\s*;\s*/,'').trim();

  // "If the unparsed-attributes string is empty, skip the rest of these
  // steps."
  if (unparsed.length === 0) {
    return c;
  }

  /*
   * S5.2 says that when looping over the items "[p]rocess the attribute-name
   * and attribute-value according to the requirements in the following
   * subsections" for every item.  Plus, for many of the individual attributes
   * in S5.3 it says to use the "attribute-value of the last attribute in the
   * cookie-attribute-list".  Therefore, in this implementation, we overwrite
   * the previous value.
   */
  var cookie_avs = unparsed.split(/\s*;\s*/);
  while (cookie_avs.length) {
    var av = cookie_avs.shift();
    var av_sep = av.indexOf('=');
    var av_key, av_value;

    if (av_sep === -1) {
      av_key = av;
      av_value = null;
    } else {
      av_key = av.substr(0,av_sep);
      av_value = av.substr(av_sep+1);
    }

    av_key = av_key.trim().toLowerCase();

    if (av_value) {
      av_value = av_value.trim();
    }

    switch(av_key) {
    case 'expires': // S5.2.1
      if (av_value) {
        var exp = parseDate(av_value);
        // "If the attribute-value failed to parse as a cookie date, ignore the
        // cookie-av."
        if (exp) {
          // over and underflow not realistically a concern: V8's getTime() seems to
          // store something larger than a 32-bit time_t (even with 32-bit node)
          c.expires = exp;
        }
      }
      break;

    case 'max-age': // S5.2.2
      if (av_value) {
        // "If the first character of the attribute-value is not a DIGIT or a "-"
        // character ...[or]... If the remainder of attribute-value contains a
        // non-DIGIT character, ignore the cookie-av."
        if (/^-?[0-9]+$/.test(av_value)) {
          var delta = parseInt(av_value, 10);
          // "If delta-seconds is less than or equal to zero (0), let expiry-time
          // be the earliest representable date and time."
          c.setMaxAge(delta);
        }
      }
      break;

    case 'domain': // S5.2.3
      // "If the attribute-value is empty, the behavior is undefined.  However,
      // the user agent SHOULD ignore the cookie-av entirely."
      if (av_value) {
        // S5.2.3 "Let cookie-domain be the attribute-value without the leading %x2E
        // (".") character."
        var domain = av_value.trim().replace(/^\./, '');
        if (domain) {
          // "Convert the cookie-domain to lower case."
          c.domain = domain.toLowerCase();
        }
      }
      break;

    case 'path': // S5.2.4
      /*
       * "If the attribute-value is empty or if the first character of the
       * attribute-value is not %x2F ("/"):
       *   Let cookie-path be the default-path.
       * Otherwise:
       *   Let cookie-path be the attribute-value."
       *
       * We'll represent the default-path as null since it depends on the
       * context of the parsing.
       */
      c.path = av_value && av_value[0] === "/" ? av_value : null;
      break;

    case 'secure': // S5.2.5
      /*
       * "If the attribute-name case-insensitively matches the string "Secure",
       * the user agent MUST append an attribute to the cookie-attribute-list
       * with an attribute-name of Secure and an empty attribute-value."
       */
      c.secure = true;
      break;

    case 'httponly': // S5.2.6 -- effectively the same as 'secure'
      c.httpOnly = true;
      break;

    default:
      c.extensions = c.extensions || [];
      c.extensions.push(av);
      break;
    }
  }

  return c;
}

// avoid the V8 deoptimization monster!
function jsonParse(str) {
  var obj;
  try {
    obj = JSON.parse(str);
  } catch (e) {
    return e;
  }
  return obj;
}

function fromJSON(str) {
  if (!str) {
    return null;
  }

  var obj;
  if (typeof str === 'string') {
    obj = jsonParse(str);
    if (obj instanceof Error) {
      return null;
    }
  } else {
    // assume it's an Object
    obj = str;
  }

  var c = new Cookie();
  for (var i=0; i<Cookie.serializableProperties.length; i++) {
    var prop = Cookie.serializableProperties[i];
    if (obj[prop] === undefined ||
        obj[prop] === Cookie.prototype[prop])
    {
      continue; // leave as prototype default
    }

    if (prop === 'expires' ||
        prop === 'creation' ||
        prop === 'lastAccessed')
    {
      if (obj[prop] === null) {
        c[prop] = null;
      } else {
        c[prop] = obj[prop] == "Infinity" ?
          "Infinity" : new Date(obj[prop]);
      }
    } else {
      c[prop] = obj[prop];
    }
  }

  return c;
}

/* Section 5.4 part 2:
 * "*  Cookies with longer paths are listed before cookies with
 *     shorter paths.
 *
 *  *  Among cookies that have equal-length path fields, cookies with
 *     earlier creation-times are listed before cookies with later
 *     creation-times."
 */

function cookieCompare(a,b) {
  var cmp = 0;

  // descending for length: b CMP a
  var aPathLen = a.path ? a.path.length : 0;
  var bPathLen = b.path ? b.path.length : 0;
  cmp = bPathLen - aPathLen;
  if (cmp !== 0) {
    return cmp;
  }

  // ascending for time: a CMP b
  var aTime = a.creation ? a.creation.getTime() : MAX_TIME;
  var bTime = b.creation ? b.creation.getTime() : MAX_TIME;
  cmp = aTime - bTime;
  if (cmp !== 0) {
    return cmp;
  }

  // break ties for the same millisecond (precision of JavaScript's clock)
  cmp = a.creationIndex - b.creationIndex;

  return cmp;
}

// Gives the permutation of all possible pathMatch()es of a given path. The
// array is in longest-to-shortest order.  Handy for indexing.
function permutePath(path) {
  if (path === '/') {
    return ['/'];
  }
  if (path.lastIndexOf('/') === path.length-1) {
    path = path.substr(0,path.length-1);
  }
  var permutations = [path];
  while (path.length > 1) {
    var lindex = path.lastIndexOf('/');
    if (lindex === 0) {
      break;
    }
    path = path.substr(0,lindex);
    permutations.push(path);
  }
  permutations.push('/');
  return permutations;
}

function getCookieContext(url) {
  if (url instanceof Object) {
    return url;
  }
  // NOTE: decodeURI will throw on malformed URIs (see GH-32).
  // Therefore, we will just skip decoding for such URIs.
  try {
    url = decodeURI(url);
  }
  catch(err) {
    // Silently swallow error
  }

  return urlParse(url);
}

function Cookie(options) {
  options = options || {};

  Object.keys(options).forEach(function(prop) {
    if (Cookie.prototype.hasOwnProperty(prop) &&
        Cookie.prototype[prop] !== options[prop] &&
        prop.substr(0,1) !== '_')
    {
      this[prop] = options[prop];
    }
  }, this);

  this.creation = this.creation || new Date();

  // used to break creation ties in cookieCompare():
  Object.defineProperty(this, 'creationIndex', {
    configurable: false,
    enumerable: false, // important for assert.deepEqual checks
    writable: true,
    value: ++Cookie.cookiesCreated
  });
}

Cookie.cookiesCreated = 0; // incremented each time a cookie is created

Cookie.parse = parse;
Cookie.fromJSON = fromJSON;

Cookie.prototype.key = "";
Cookie.prototype.value = "";

// the order in which the RFC has them:
Cookie.prototype.expires = "Infinity"; // coerces to literal Infinity
Cookie.prototype.maxAge = null; // takes precedence over expires for TTL
Cookie.prototype.domain = null;
Cookie.prototype.path = null;
Cookie.prototype.secure = false;
Cookie.prototype.httpOnly = false;
Cookie.prototype.extensions = null;

// set by the CookieJar:
Cookie.prototype.hostOnly = null; // boolean when set
Cookie.prototype.pathIsDefault = null; // boolean when set
Cookie.prototype.creation = null; // Date when set; defaulted by Cookie.parse
Cookie.prototype.lastAccessed = null; // Date when set
Object.defineProperty(Cookie.prototype, 'creationIndex', {
  configurable: true,
  enumerable: false,
  writable: true,
  value: 0
});

Cookie.serializableProperties = Object.keys(Cookie.prototype)
  .filter(function(prop) {
    return !(
      Cookie.prototype[prop] instanceof Function ||
      prop === 'creationIndex' ||
      prop.substr(0,1) === '_'
    );
  });

Cookie.prototype.inspect = function inspect() {
  var now = Date.now();
  return 'Cookie="'+this.toString() +
    '; hostOnly='+(this.hostOnly != null ? this.hostOnly : '?') +
    '; aAge='+(this.lastAccessed ? (now-this.lastAccessed.getTime())+'ms' : '?') +
    '; cAge='+(this.creation ? (now-this.creation.getTime())+'ms' : '?') +
    '"';
};

Cookie.prototype.toJSON = function() {
  var obj = {};

  var props = Cookie.serializableProperties;
  for (var i=0; i<props.length; i++) {
    var prop = props[i];
    if (this[prop] === Cookie.prototype[prop]) {
      continue; // leave as prototype default
    }

    if (prop === 'expires' ||
        prop === 'creation' ||
        prop === 'lastAccessed')
    {
      if (this[prop] === null) {
        obj[prop] = null;
      } else {
        obj[prop] = this[prop] == "Infinity" ? // intentionally not ===
          "Infinity" : this[prop].toISOString();
      }
    } else if (prop === 'maxAge') {
      if (this[prop] !== null) {
        // again, intentionally not ===
        obj[prop] = (this[prop] == Infinity || this[prop] == -Infinity) ?
          this[prop].toString() : this[prop];
      }
    } else {
      if (this[prop] !== Cookie.prototype[prop]) {
        obj[prop] = this[prop];
      }
    }
  }

  return obj;
};

Cookie.prototype.clone = function() {
  return fromJSON(this.toJSON());
};

Cookie.prototype.validate = function validate() {
  if (!COOKIE_OCTETS.test(this.value)) {
    return false;
  }
  if (this.expires != Infinity && !(this.expires instanceof Date) && !parseDate(this.expires)) {
    return false;
  }
  if (this.maxAge != null && this.maxAge <= 0) {
    return false; // "Max-Age=" non-zero-digit *DIGIT
  }
  if (this.path != null && !PATH_VALUE.test(this.path)) {
    return false;
  }

  var cdomain = this.cdomain();
  if (cdomain) {
    if (cdomain.match(/\.$/)) {
      return false; // S4.1.2.3 suggests that this is bad. domainMatch() tests confirm this
    }
    var suffix = pubsuffix.getPublicSuffix(cdomain);
    if (suffix == null) { // it's a public suffix
      return false;
    }
  }
  return true;
};

Cookie.prototype.setExpires = function setExpires(exp) {
  if (exp instanceof Date) {
    this.expires = exp;
  } else {
    this.expires = parseDate(exp) || "Infinity";
  }
};

Cookie.prototype.setMaxAge = function setMaxAge(age) {
  if (age === Infinity || age === -Infinity) {
    this.maxAge = age.toString(); // so JSON.stringify() works
  } else {
    this.maxAge = age;
  }
};

// gives Cookie header format
Cookie.prototype.cookieString = function cookieString() {
  var val = this.value;
  if (val == null) {
    val = '';
  }
  if (this.key === '') {
    return val;
  }
  return this.key+'='+val;
};

// gives Set-Cookie header format
Cookie.prototype.toString = function toString() {
  var str = this.cookieString();

  if (this.expires != Infinity) {
    if (this.expires instanceof Date) {
      str += '; Expires='+formatDate(this.expires);
    } else {
      str += '; Expires='+this.expires;
    }
  }

  if (this.maxAge != null && this.maxAge != Infinity) {
    str += '; Max-Age='+this.maxAge;
  }

  if (this.domain && !this.hostOnly) {
    str += '; Domain='+this.domain;
  }
  if (this.path) {
    str += '; Path='+this.path;
  }

  if (this.secure) {
    str += '; Secure';
  }
  if (this.httpOnly) {
    str += '; HttpOnly';
  }
  if (this.extensions) {
    this.extensions.forEach(function(ext) {
      str += '; '+ext;
    });
  }

  return str;
};

// TTL() partially replaces the "expiry-time" parts of S5.3 step 3 (setCookie()
// elsewhere)
// S5.3 says to give the "latest representable date" for which we use Infinity
// For "expired" we use 0
Cookie.prototype.TTL = function TTL(now) {
  /* RFC6265 S4.1.2.2 If a cookie has both the Max-Age and the Expires
   * attribute, the Max-Age attribute has precedence and controls the
   * expiration date of the cookie.
   * (Concurs with S5.3 step 3)
   */
  if (this.maxAge != null) {
    return this.maxAge<=0 ? 0 : this.maxAge*1000;
  }

  var expires = this.expires;
  if (expires != Infinity) {
    if (!(expires instanceof Date)) {
      expires = parseDate(expires) || Infinity;
    }

    if (expires == Infinity) {
      return Infinity;
    }

    return expires.getTime() - (now || Date.now());
  }

  return Infinity;
};

// expiryTime() replaces the "expiry-time" parts of S5.3 step 3 (setCookie()
// elsewhere)
Cookie.prototype.expiryTime = function expiryTime(now) {
  if (this.maxAge != null) {
    var relativeTo = now || this.creation || new Date();
    var age = (this.maxAge <= 0) ? -Infinity : this.maxAge*1000;
    return relativeTo.getTime() + age;
  }

  if (this.expires == Infinity) {
    return Infinity;
  }
  return this.expires.getTime();
};

// expiryDate() replaces the "expiry-time" parts of S5.3 step 3 (setCookie()
// elsewhere), except it returns a Date
Cookie.prototype.expiryDate = function expiryDate(now) {
  var millisec = this.expiryTime(now);
  if (millisec == Infinity) {
    return new Date(MAX_TIME);
  } else if (millisec == -Infinity) {
    return new Date(MIN_TIME);
  } else {
    return new Date(millisec);
  }
};

// This replaces the "persistent-flag" parts of S5.3 step 3
Cookie.prototype.isPersistent = function isPersistent() {
  return (this.maxAge != null || this.expires != Infinity);
};

// Mostly S5.1.2 and S5.2.3:
Cookie.prototype.cdomain =
Cookie.prototype.canonicalizedDomain = function canonicalizedDomain() {
  if (this.domain == null) {
    return null;
  }
  return canonicalDomain(this.domain);
};

function CookieJar(store, options) {
  if (typeof options === "boolean") {
    options = {rejectPublicSuffixes: options};
  } else if (options == null) {
    options = {};
  }
  if (options.rejectPublicSuffixes != null) {
    this.rejectPublicSuffixes = options.rejectPublicSuffixes;
  }
  if (options.looseMode != null) {
    this.enableLooseMode = options.looseMode;
  }

  if (!store) {
    store = new MemoryCookieStore();
  }
  this.store = store;
}
CookieJar.prototype.store = null;
CookieJar.prototype.rejectPublicSuffixes = true;
CookieJar.prototype.enableLooseMode = false;
var CAN_BE_SYNC = [];

CAN_BE_SYNC.push('setCookie');
CookieJar.prototype.setCookie = function(cookie, url, options, cb) {
  var err;
  var context = getCookieContext(url);
  if (options instanceof Function) {
    cb = options;
    options = {};
  }

  var host = canonicalDomain(context.hostname);
  var loose = this.enableLooseMode;
  if (options.loose != null) {
    loose = options.loose;
  }

  // S5.3 step 1
  if (!(cookie instanceof Cookie)) {
    cookie = Cookie.parse(cookie, { loose: loose });
  }
  if (!cookie) {
    err = new Error("Cookie failed to parse");
    return cb(options.ignoreError ? null : err);
  }

  // S5.3 step 2
  var now = options.now || new Date(); // will assign later to save effort in the face of errors

  // S5.3 step 3: NOOP; persistent-flag and expiry-time is handled by getCookie()

  // S5.3 step 4: NOOP; domain is null by default

  // S5.3 step 5: public suffixes
  if (this.rejectPublicSuffixes && cookie.domain) {
    var suffix = pubsuffix.getPublicSuffix(cookie.cdomain());
    if (suffix == null) { // e.g. "com"
      err = new Error("Cookie has domain set to a public suffix");
      return cb(options.ignoreError ? null : err);
    }
  }

  // S5.3 step 6:
  if (cookie.domain) {
    if (!domainMatch(host, cookie.cdomain(), false)) {
      err = new Error("Cookie not in this host's domain. Cookie:"+cookie.cdomain()+" Request:"+host);
      return cb(options.ignoreError ? null : err);
    }

    if (cookie.hostOnly == null) { // don't reset if already set
      cookie.hostOnly = false;
    }

  } else {
    cookie.hostOnly = true;
    cookie.domain = host;
  }

  //S5.2.4 If the attribute-value is empty or if the first character of the
  //attribute-value is not %x2F ("/"):
  //Let cookie-path be the default-path.
  if (!cookie.path || cookie.path[0] !== '/') {
    cookie.path = defaultPath(context.pathname);
    cookie.pathIsDefault = true;
  }

  // S5.3 step 8: NOOP; secure attribute
  // S5.3 step 9: NOOP; httpOnly attribute

  // S5.3 step 10
  if (options.http === false && cookie.httpOnly) {
    err = new Error("Cookie is HttpOnly and this isn't an HTTP API");
    return cb(options.ignoreError ? null : err);
  }

  var store = this.store;

  if (!store.updateCookie) {
    store.updateCookie = function(oldCookie, newCookie, cb) {
      this.putCookie(newCookie, cb);
    };
  }

  function withCookie(err, oldCookie) {
    if (err) {
      return cb(err);
    }

    var next = function(err) {
      if (err) {
        return cb(err);
      } else {
        cb(null, cookie);
      }
    };

    if (oldCookie) {
      // S5.3 step 11 - "If the cookie store contains a cookie with the same name,
      // domain, and path as the newly created cookie:"
      if (options.http === false && oldCookie.httpOnly) { // step 11.2
        err = new Error("old Cookie is HttpOnly and this isn't an HTTP API");
        return cb(options.ignoreError ? null : err);
      }
      cookie.creation = oldCookie.creation; // step 11.3
      cookie.creationIndex = oldCookie.creationIndex; // preserve tie-breaker
      cookie.lastAccessed = now;
      // Step 11.4 (delete cookie) is implied by just setting the new one:
      store.updateCookie(oldCookie, cookie, next); // step 12

    } else {
      cookie.creation = cookie.lastAccessed = now;
      store.putCookie(cookie, next); // step 12
    }
  }

  store.findCookie(cookie.domain, cookie.path, cookie.key, withCookie);
};

// RFC6365 S5.4
CAN_BE_SYNC.push('getCookies');
CookieJar.prototype.getCookies = function(url, options, cb) {
  var context = getCookieContext(url);
  if (options instanceof Function) {
    cb = options;
    options = {};
  }

  var host = canonicalDomain(context.hostname);
  var path = context.pathname || '/';

  var secure = options.secure;
  if (secure == null && context.protocol &&
      (context.protocol == 'https:' || context.protocol == 'wss:'))
  {
    secure = true;
  }

  var http = options.http;
  if (http == null) {
    http = true;
  }

  var now = options.now || Date.now();
  var expireCheck = options.expire !== false;
  var allPaths = !!options.allPaths;
  var store = this.store;

  function matchingCookie(c) {
    // "Either:
    //   The cookie's host-only-flag is true and the canonicalized
    //   request-host is identical to the cookie's domain.
    // Or:
    //   The cookie's host-only-flag is false and the canonicalized
    //   request-host domain-matches the cookie's domain."
    if (c.hostOnly) {
      if (c.domain != host) {
        return false;
      }
    } else {
      if (!domainMatch(host, c.domain, false)) {
        return false;
      }
    }

    // "The request-uri's path path-matches the cookie's path."
    if (!allPaths && !pathMatch(path, c.path)) {
      return false;
    }

    // "If the cookie's secure-only-flag is true, then the request-uri's
    // scheme must denote a "secure" protocol"
    if (c.secure && !secure) {
      return false;
    }

    // "If the cookie's http-only-flag is true, then exclude the cookie if the
    // cookie-string is being generated for a "non-HTTP" API"
    if (c.httpOnly && !http) {
      return false;
    }

    // deferred from S5.3
    // non-RFC: allow retention of expired cookies by choice
    if (expireCheck && c.expiryTime() <= now) {
      store.removeCookie(c.domain, c.path, c.key, function(){}); // result ignored
      return false;
    }

    return true;
  }

  store.findCookies(host, allPaths ? null : path, function(err,cookies) {
    if (err) {
      return cb(err);
    }

    cookies = cookies.filter(matchingCookie);

    // sorting of S5.4 part 2
    if (options.sort !== false) {
      cookies = cookies.sort(cookieCompare);
    }

    // S5.4 part 3
    var now = new Date();
    cookies.forEach(function(c) {
      c.lastAccessed = now;
    });
    // TODO persist lastAccessed

    cb(null,cookies);
  });
};

CAN_BE_SYNC.push('getCookieString');
CookieJar.prototype.getCookieString = function(/*..., cb*/) {
  var args = Array.prototype.slice.call(arguments,0);
  var cb = args.pop();
  var next = function(err,cookies) {
    if (err) {
      cb(err);
    } else {
      cb(null, cookies
        .sort(cookieCompare)
        .map(function(c){
          return c.cookieString();
        })
        .join('; '));
    }
  };
  args.push(next);
  this.getCookies.apply(this,args);
};

CAN_BE_SYNC.push('getSetCookieStrings');
CookieJar.prototype.getSetCookieStrings = function(/*..., cb*/) {
  var args = Array.prototype.slice.call(arguments,0);
  var cb = args.pop();
  var next = function(err,cookies) {
    if (err) {
      cb(err);
    } else {
      cb(null, cookies.map(function(c){
        return c.toString();
      }));
    }
  };
  args.push(next);
  this.getCookies.apply(this,args);
};

CAN_BE_SYNC.push('serialize');
CookieJar.prototype.serialize = function(cb) {
  var type = this.store.constructor.name;
  if (type === 'Object') {
    type = null;
  }

  // update README.md "Serialization Format" if you change this, please!
  var serialized = {
    // The version of tough-cookie that serialized this jar. Generally a good
    // practice since future versions can make data import decisions based on
    // known past behavior. When/if this matters, use `semver`.
    version: 'tough-cookie@'+VERSION,

    // add the store type, to make humans happy:
    storeType: type,

    // CookieJar configuration:
    rejectPublicSuffixes: !!this.rejectPublicSuffixes,

    // this gets filled from getAllCookies:
    cookies: []
  };

  if (!(this.store.getAllCookies &&
        typeof this.store.getAllCookies === 'function'))
  {
    return cb(new Error('store does not support getAllCookies and cannot be serialized'));
  }

  this.store.getAllCookies(function(err,cookies) {
    if (err) {
      return cb(err);
    }

    serialized.cookies = cookies.map(function(cookie) {
      // convert to serialized 'raw' cookies
      cookie = (cookie instanceof Cookie) ? cookie.toJSON() : cookie;

      // Remove the index so new ones get assigned during deserialization
      delete cookie.creationIndex;

      return cookie;
    });

    return cb(null, serialized);
  });
};

// well-known name that JSON.stringify calls
CookieJar.prototype.toJSON = function() {
  return this.serializeSync();
};

// use the class method CookieJar.deserialize instead of calling this directly
CAN_BE_SYNC.push('_importCookies');
CookieJar.prototype._importCookies = function(serialized, cb) {
  var jar = this;
  var cookies = serialized.cookies;
  if (!cookies || !Array.isArray(cookies)) {
    return cb(new Error('serialized jar has no cookies array'));
  }

  function putNext(err) {
    if (err) {
      return cb(err);
    }

    if (!cookies.length) {
      return cb(err, jar);
    }

    var cookie;
    try {
      cookie = fromJSON(cookies.shift());
    } catch (e) {
      return cb(e);
    }

    if (cookie === null) {
      return putNext(null); // skip this cookie
    }

    jar.store.putCookie(cookie, putNext);
  }

  putNext();
};

CookieJar.deserialize = function(strOrObj, store, cb) {
  if (arguments.length !== 3) {
    // store is optional
    cb = store;
    store = null;
  }

  var serialized;
  if (typeof strOrObj === 'string') {
    serialized = jsonParse(strOrObj);
    if (serialized instanceof Error) {
      return cb(serialized);
    }
  } else {
    serialized = strOrObj;
  }

  var jar = new CookieJar(store, serialized.rejectPublicSuffixes);
  jar._importCookies(serialized, function(err) {
    if (err) {
      return cb(err);
    }
    cb(null, jar);
  });
};

CookieJar.fromJSON = CookieJar.deserializeSync;
CookieJar.deserializeSync = function(strOrObj, store) {
  var serialized = typeof strOrObj === 'string' ?
    JSON.parse(strOrObj) : strOrObj;
  var jar = new CookieJar(store, serialized.rejectPublicSuffixes);

  // catch this mistake early:
  if (!jar.store.synchronous) {
    throw new Error('CookieJar store is not synchronous; use async API instead.');
  }

  jar._importCookiesSync(serialized);
  return jar;
};

CAN_BE_SYNC.push('clone');
CookieJar.prototype.clone = function(newStore, cb) {
  if (arguments.length === 1) {
    cb = newStore;
    newStore = null;
  }

  this.serialize(function(err,serialized) {
    if (err) {
      return cb(err);
    }
    CookieJar.deserialize(newStore, serialized, cb);
  });
};

// Use a closure to provide a true imperative API for synchronous stores.
function syncWrap(method) {
  return function() {
    if (!this.store.synchronous) {
      throw new Error('CookieJar store is not synchronous; use async API instead.');
    }

    var args = Array.prototype.slice.call(arguments);
    var syncErr, syncResult;
    args.push(function syncCb(err, result) {
      syncErr = err;
      syncResult = result;
    });
    this[method].apply(this, args);

    if (syncErr) {
      throw syncErr;
    }
    return syncResult;
  };
}

// wrap all declared CAN_BE_SYNC methods in the sync wrapper
CAN_BE_SYNC.forEach(function(method) {
  CookieJar.prototype[method+'Sync'] = syncWrap(method);
});

module.exports = {
  CookieJar: CookieJar,
  Cookie: Cookie,
  Store: Store,
  MemoryCookieStore: MemoryCookieStore,
  parseDate: parseDate,
  formatDate: formatDate,
  parse: parse,
  fromJSON: fromJSON,
  domainMatch: domainMatch,
  defaultPath: defaultPath,
  pathMatch: pathMatch,
  getPublicSuffix: pubsuffix.getPublicSuffix,
  cookieCompare: cookieCompare,
  permuteDomain: require('./permuteDomain').permuteDomain,
  permutePath: permutePath,
  canonicalDomain: canonicalDomain
};

},{"../package.json":475,"./memstore":470,"./pathMatch":471,"./permuteDomain":472,"./pubsuffix":473,"./store":474,"net":2,"punycode":216,"url":245}],470:[function(require,module,exports){
/*!
 * Copyright (c) 2015, Salesforce.com, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of Salesforce.com nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
'use strict';
var Store = require('./store').Store;
var permuteDomain = require('./permuteDomain').permuteDomain;
var pathMatch = require('./pathMatch').pathMatch;
var util = require('util');

function MemoryCookieStore() {
  Store.call(this);
  this.idx = {};
}
util.inherits(MemoryCookieStore, Store);
exports.MemoryCookieStore = MemoryCookieStore;
MemoryCookieStore.prototype.idx = null;

// Since it's just a struct in RAM, this Store is synchronous
MemoryCookieStore.prototype.synchronous = true;

// force a default depth:
MemoryCookieStore.prototype.inspect = function() {
  return "{ idx: "+util.inspect(this.idx, false, 2)+' }';
};

MemoryCookieStore.prototype.findCookie = function(domain, path, key, cb) {
  if (!this.idx[domain]) {
    return cb(null,undefined);
  }
  if (!this.idx[domain][path]) {
    return cb(null,undefined);
  }
  return cb(null,this.idx[domain][path][key]||null);
};

MemoryCookieStore.prototype.findCookies = function(domain, path, cb) {
  var results = [];
  if (!domain) {
    return cb(null,[]);
  }

  var pathMatcher;
  if (!path) {
    // null means "all paths"
    pathMatcher = function matchAll(domainIndex) {
      for (var curPath in domainIndex) {
        var pathIndex = domainIndex[curPath];
        for (var key in pathIndex) {
          results.push(pathIndex[key]);
        }
      }
    };

  } else {
    pathMatcher = function matchRFC(domainIndex) {
       //NOTE: we should use path-match algorithm from S5.1.4 here
       //(see : https://github.com/ChromiumWebApps/chromium/blob/b3d3b4da8bb94c1b2e061600df106d590fda3620/net/cookies/canonical_cookie.cc#L299)
       Object.keys(domainIndex).forEach(function (cookiePath) {
         if (pathMatch(path, cookiePath)) {
           var pathIndex = domainIndex[cookiePath];

           for (var key in pathIndex) {
             results.push(pathIndex[key]);
           }
         }
       });
     };
  }

  var domains = permuteDomain(domain) || [domain];
  var idx = this.idx;
  domains.forEach(function(curDomain) {
    var domainIndex = idx[curDomain];
    if (!domainIndex) {
      return;
    }
    pathMatcher(domainIndex);
  });

  cb(null,results);
};

MemoryCookieStore.prototype.putCookie = function(cookie, cb) {
  if (!this.idx[cookie.domain]) {
    this.idx[cookie.domain] = {};
  }
  if (!this.idx[cookie.domain][cookie.path]) {
    this.idx[cookie.domain][cookie.path] = {};
  }
  this.idx[cookie.domain][cookie.path][cookie.key] = cookie;
  cb(null);
};

MemoryCookieStore.prototype.updateCookie = function(oldCookie, newCookie, cb) {
  // updateCookie() may avoid updating cookies that are identical.  For example,
  // lastAccessed may not be important to some stores and an equality
  // comparison could exclude that field.
  this.putCookie(newCookie,cb);
};

MemoryCookieStore.prototype.removeCookie = function(domain, path, key, cb) {
  if (this.idx[domain] && this.idx[domain][path] && this.idx[domain][path][key]) {
    delete this.idx[domain][path][key];
  }
  cb(null);
};

MemoryCookieStore.prototype.removeCookies = function(domain, path, cb) {
  if (this.idx[domain]) {
    if (path) {
      delete this.idx[domain][path];
    } else {
      delete this.idx[domain];
    }
  }
  return cb(null);
};

MemoryCookieStore.prototype.getAllCookies = function(cb) {
  var cookies = [];
  var idx = this.idx;

  var domains = Object.keys(idx);
  domains.forEach(function(domain) {
    var paths = Object.keys(idx[domain]);
    paths.forEach(function(path) {
      var keys = Object.keys(idx[domain][path]);
      keys.forEach(function(key) {
        if (key !== null) {
          cookies.push(idx[domain][path][key]);
        }
      });
    });
  });

  // Sort by creationIndex so deserializing retains the creation order.
  // When implementing your own store, this SHOULD retain the order too
  cookies.sort(function(a,b) {
    return (a.creationIndex||0) - (b.creationIndex||0);
  });

  cb(null, cookies);
};

},{"./pathMatch":471,"./permuteDomain":472,"./store":474,"util":247}],471:[function(require,module,exports){
/*!
 * Copyright (c) 2015, Salesforce.com, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of Salesforce.com nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
"use strict";
/*
 * "A request-path path-matches a given cookie-path if at least one of the
 * following conditions holds:"
 */
function pathMatch (reqPath, cookiePath) {
  // "o  The cookie-path and the request-path are identical."
  if (cookiePath === reqPath) {
    return true;
  }

  var idx = reqPath.indexOf(cookiePath);
  if (idx === 0) {
    // "o  The cookie-path is a prefix of the request-path, and the last
    // character of the cookie-path is %x2F ("/")."
    if (cookiePath.substr(-1) === "/") {
      return true;
    }

    // " o  The cookie-path is a prefix of the request-path, and the first
    // character of the request-path that is not included in the cookie- path
    // is a %x2F ("/") character."
    if (reqPath.substr(cookiePath.length, 1) === "/") {
      return true;
    }
  }

  return false;
}

exports.pathMatch = pathMatch;

},{}],472:[function(require,module,exports){
/*!
 * Copyright (c) 2015, Salesforce.com, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of Salesforce.com nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
"use strict";
var pubsuffix = require('./pubsuffix');

// Gives the permutation of all possible domainMatch()es of a given domain. The
// array is in shortest-to-longest order.  Handy for indexing.
function permuteDomain (domain) {
  var pubSuf = pubsuffix.getPublicSuffix(domain);
  if (!pubSuf) {
    return null;
  }
  if (pubSuf == domain) {
    return [domain];
  }

  var prefix = domain.slice(0, -(pubSuf.length + 1)); // ".example.com"
  var parts = prefix.split('.').reverse();
  var cur = pubSuf;
  var permutations = [cur];
  while (parts.length) {
    cur = parts.shift() + '.' + cur;
    permutations.push(cur);
  }
  return permutations;
}

exports.permuteDomain = permuteDomain;

},{"./pubsuffix":473}],473:[function(require,module,exports){
/****************************************************
 * AUTOMATICALLY GENERATED by generate-pubsuffix.js *
 *                  DO NOT EDIT!                    *
 ****************************************************/

"use strict";

var punycode = require('punycode');

module.exports.getPublicSuffix = function getPublicSuffix(domain) {
  /*!
   * Copyright (c) 2015, Salesforce.com, Inc.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice,
   * this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   * this list of conditions and the following disclaimer in the documentation
   * and/or other materials provided with the distribution.
   *
   * 3. Neither the name of Salesforce.com nor the names of its contributors may
   * be used to endorse or promote products derived from this software without
   * specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  if (!domain) {
    return null;
  }
  if (domain.match(/^\./)) {
    return null;
  }
  var asciiDomain = punycode.toASCII(domain);
  var converted = false;
  if (asciiDomain !== domain) {
    domain = asciiDomain;
    converted = true;
  }
  if (index[domain]) {
    return null;
  }

  domain = domain.toLowerCase();
  var parts = domain.split('.').reverse();

  var suffix = '';
  var suffixLen = 0;
  for (var i=0; i<parts.length; i++) {
    var part = parts[i];
    var starstr = '*'+suffix;
    var partstr = part+suffix;

    if (index[starstr]) { // star rule matches
      suffixLen = i+1;
      if (index[partstr] === false) { // exception rule matches (NB: false, not undefined)
        suffixLen--;
      }
    } else if (index[partstr]) { // exact match, not exception
      suffixLen = i+1;
    }

    suffix = '.'+partstr;
  }

  if (index['*'+suffix]) { // *.domain exists (e.g. *.kyoto.jp for domain='kyoto.jp');
    return null;
  }

  suffixLen = suffixLen || 1;
  if (parts.length > suffixLen) {
    var publicSuffix = parts.slice(0,suffixLen+1).reverse().join('.');
    return converted ? punycode.toUnicode(publicSuffix) : publicSuffix;
  }

  return null;
};

// The following generated structure is used under the MPL version 2.0
// See public-suffix.txt for more information

var index = module.exports.index = Object.freeze(
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// END of automatically generated file

},{"punycode":216}],474:[function(require,module,exports){
/*!
 * Copyright (c) 2015, Salesforce.com, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of Salesforce.com nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
'use strict';
/*jshint unused:false */

function Store() {
}
exports.Store = Store;

// Stores may be synchronous, but are still required to use a
// Continuation-Passing Style API.  The CookieJar itself will expose a "*Sync"
// API that converts from synchronous-callbacks to imperative style.
Store.prototype.synchronous = false;

Store.prototype.findCookie = function(domain, path, key, cb) {
  throw new Error('findCookie is not implemented');
};

Store.prototype.findCookies = function(domain, path, cb) {
  throw new Error('findCookies is not implemented');
};

Store.prototype.putCookie = function(cookie, cb) {
  throw new Error('putCookie is not implemented');
};

Store.prototype.updateCookie = function(oldCookie, newCookie, cb) {
  // recommended default implementation:
  // return this.putCookie(newCookie, cb);
  throw new Error('updateCookie is not implemented');
};

Store.prototype.removeCookie = function(domain, path, key, cb) {
  throw new Error('removeCookie is not implemented');
};

Store.prototype.removeCookies = function(domain, path, cb) {
  throw new Error('removeCookies is not implemented');
};

Store.prototype.getAllCookies = function(cb) {
  throw new Error('getAllCookies is not implemented (therefore jar cannot be serialized)');
};

},{}],475:[function(require,module,exports){
module.exports={
  "author": {
    "name": "Jeremy Stashewsky",
    "email": "jstashewsky@salesforce.com"
  },
  "contributors": [
    {
      "name": "Alexander Savin"
    },
    {
      "name": "Ian Livingstone"
    },
    {
      "name": "Ivan Nikulin"
    },
    {
      "name": "Lalit Kapoor"
    },
    {
      "name": "Sam Thompson"
    },
    {
      "name": "Sebastian Mayr"
    }
  ],
  "license": "BSD-3-Clause",
  "name": "tough-cookie",
  "description": "RFC6265 Cookies and Cookie Jar for node.js",
  "keywords": [
    "HTTP",
    "cookie",
    "cookies",
    "set-cookie",
    "cookiejar",
    "jar",
    "RFC6265",
    "RFC2965"
  ],
  "version": "2.2.0",
  "homepage": "https://github.com/SalesforceEng/tough-cookie",
  "repository": {
    "type": "git",
    "url": "git://github.com/SalesforceEng/tough-cookie.git"
  },
  "bugs": {
    "url": "https://github.com/SalesforceEng/tough-cookie/issues"
  },
  "main": "./lib/cookie",
  "files": [
    "lib"
  ],
  "scripts": {
    "suffixup": "curl -o public_suffix_list.dat https://publicsuffix.org/list/public_suffix_list.dat && ./generate-pubsuffix.js",
    "test": "vows test/*_test.js"
  },
  "engines": {
    "node": ">=0.10.0"
  },
  "devDependencies": {
    "async": "^1.4.2",
    "vows": "^0.8.1"
  },
  "gitHead": "fb1456177c9b51445afa34656eb314c70c2adcd2",
  "_id": "tough-cookie@2.2.0",
  "_shasum": "d4ce661075e5fddb7f20341d3f9931a6fbbadde0",
  "_from": "tough-cookie@>=2.2.0 <2.3.0",
  "_npmVersion": "2.11.2",
  "_nodeVersion": "0.12.5",
  "_npmUser": {
    "name": "jstash",
    "email": "jstash@gmail.com"
  },
  "dist": {
    "shasum": "d4ce661075e5fddb7f20341d3f9931a6fbbadde0",
    "tarball": "http://registry.npmjs.org/tough-cookie/-/tough-cookie-2.2.0.tgz"
  },
  "maintainers": [
    {
      "name": "jstash",
      "email": "jeremy@goinstant.com"
    },
    {
      "name": "goinstant",
      "email": "services@goinstant.com"
    }
  ],
  "directories": {},
  "_resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.2.0.tgz",
  "readme": "ERROR: No README data found!"
}

},{}],476:[function(require,module,exports){
(function (process,Buffer){
'use strict'

var net = require('net')
  , tls = require('tls')
  , http = require('http')
  , https = require('https')
  , events = require('events')
  , assert = require('assert')
  , util = require('util')
  ;

exports.httpOverHttp = httpOverHttp
exports.httpsOverHttp = httpsOverHttp
exports.httpOverHttps = httpOverHttps
exports.httpsOverHttps = httpsOverHttps


function httpOverHttp(options) {
  var agent = new TunnelingAgent(options)
  agent.request = http.request
  return agent
}

function httpsOverHttp(options) {
  var agent = new TunnelingAgent(options)
  agent.request = http.request
  agent.createSocket = createSecureSocket
  return agent
}

function httpOverHttps(options) {
  var agent = new TunnelingAgent(options)
  agent.request = https.request
  return agent
}

function httpsOverHttps(options) {
  var agent = new TunnelingAgent(options)
  agent.request = https.request
  agent.createSocket = createSecureSocket
  return agent
}


function TunnelingAgent(options) {
  var self = this
  self.options = options || {}
  self.proxyOptions = self.options.proxy || {}
  self.maxSockets = self.options.maxSockets || http.Agent.defaultMaxSockets
  self.requests = []
  self.sockets = []

  self.on('free', function onFree(socket, host, port) {
    for (var i = 0, len = self.requests.length; i < len; ++i) {
      var pending = self.requests[i]
      if (pending.host === host && pending.port === port) {
        // Detect the request to connect same origin server,
        // reuse the connection.
        self.requests.splice(i, 1)
        pending.request.onSocket(socket)
        return
      }
    }
    socket.destroy()
    self.removeSocket(socket)
  })
}
util.inherits(TunnelingAgent, events.EventEmitter)

TunnelingAgent.prototype.addRequest = function addRequest(req, options) {
  var self = this

   // Legacy API: addRequest(req, host, port, path)
  if (typeof options === 'string') {
    options = {
      host: options,
      port: arguments[2],
      path: arguments[3]
    };
  }

  if (self.sockets.length >= this.maxSockets) {
    // We are over limit so we'll add it to the queue.
    self.requests.push({host: options.host, port: options.port, request: req})
    return
  }

  // If we are under maxSockets create a new one.
  self.createConnection({host: options.host, port: options.port, request: req})
}

TunnelingAgent.prototype.createConnection = function createConnection(pending) {
  var self = this

  self.createSocket(pending, function(socket) {
    socket.on('free', onFree)
    socket.on('close', onCloseOrRemove)
    socket.on('agentRemove', onCloseOrRemove)
    pending.request.onSocket(socket)

    function onFree() {
      self.emit('free', socket, pending.host, pending.port)
    }

    function onCloseOrRemove(err) {
      self.removeSocket(socket)
      socket.removeListener('free', onFree)
      socket.removeListener('close', onCloseOrRemove)
      socket.removeListener('agentRemove', onCloseOrRemove)
    }
  })
}

TunnelingAgent.prototype.createSocket = function createSocket(options, cb) {
  var self = this
  var placeholder = {}
  self.sockets.push(placeholder)

  var connectOptions = mergeOptions({}, self.proxyOptions, 
    { method: 'CONNECT'
    , path: options.host + ':' + options.port
    , agent: false
    }
  )
  if (connectOptions.proxyAuth) {
    connectOptions.headers = connectOptions.headers || {}
    connectOptions.headers['Proxy-Authorization'] = 'Basic ' +
        new Buffer(connectOptions.proxyAuth).toString('base64')
  }

  debug('making CONNECT request')
  var connectReq = self.request(connectOptions)
  connectReq.useChunkedEncodingByDefault = false // for v0.6
  connectReq.once('response', onResponse) // for v0.6
  connectReq.once('upgrade', onUpgrade)   // for v0.6
  connectReq.once('connect', onConnect)   // for v0.7 or later
  connectReq.once('error', onError)
  connectReq.end()

  function onResponse(res) {
    // Very hacky. This is necessary to avoid http-parser leaks.
    res.upgrade = true
  }

  function onUpgrade(res, socket, head) {
    // Hacky.
    process.nextTick(function() {
      onConnect(res, socket, head)
    })
  }

  function onConnect(res, socket, head) {
    connectReq.removeAllListeners()
    socket.removeAllListeners()

    if (res.statusCode === 200) {
      assert.equal(head.length, 0)
      debug('tunneling connection has established')
      self.sockets[self.sockets.indexOf(placeholder)] = socket
      cb(socket)
    } else {
      debug('tunneling socket could not be established, statusCode=%d', res.statusCode)
      var error = new Error('tunneling socket could not be established, ' + 'statusCode=' + res.statusCode)
      error.code = 'ECONNRESET'
      options.request.emit('error', error)
      self.removeSocket(placeholder)
    }
  }

  function onError(cause) {
    connectReq.removeAllListeners()

    debug('tunneling socket could not be established, cause=%s\n', cause.message, cause.stack)
    var error = new Error('tunneling socket could not be established, ' + 'cause=' + cause.message)
    error.code = 'ECONNRESET'
    options.request.emit('error', error)
    self.removeSocket(placeholder)
  }
}

TunnelingAgent.prototype.removeSocket = function removeSocket(socket) {
  var pos = this.sockets.indexOf(socket)
  if (pos === -1) return
  
  this.sockets.splice(pos, 1)

  var pending = this.requests.shift()
  if (pending) {
    // If we have pending requests and a socket gets closed a new one
    // needs to be created to take over in the pool for the one that closed.
    this.createConnection(pending)
  }
}

function createSecureSocket(options, cb) {
  var self = this
  TunnelingAgent.prototype.createSocket.call(self, options, function(socket) {
    // 0 is dummy port for v0.6
    var secureSocket = tls.connect(0, mergeOptions({}, self.options, 
      { servername: options.host
      , socket: socket
      }
    ))
    self.sockets[self.sockets.indexOf(socket)] = secureSocket
    cb(secureSocket)
  })
}


function mergeOptions(target) {
  for (var i = 1, len = arguments.length; i < len; ++i) {
    var overrides = arguments[i]
    if (typeof overrides === 'object') {
      var keys = Object.keys(overrides)
      for (var j = 0, keyLen = keys.length; j < keyLen; ++j) {
        var k = keys[j]
        if (overrides[k] !== undefined) {
          target[k] = overrides[k]
        }
      }
    }
  }
  return target
}


var debug
if (process.env.NODE_DEBUG && /\btunnel\b/.test(process.env.NODE_DEBUG)) {
  debug = function() {
    var args = Array.prototype.slice.call(arguments)
    if (typeof args[0] === 'string') {
      args[0] = 'TUNNEL: ' + args[0]
    } else {
      args.unshift('TUNNEL:')
    }
    console.error.apply(console, args)
  }
} else {
  debug = function() {}
}
exports.debug = debug // for test

}).call(this,require('_process'),require("buffer").Buffer)
},{"_process":215,"assert":3,"buffer":18,"events":208,"http":234,"https":209,"net":2,"tls":2,"util":247}],477:[function(require,module,exports){
(function (process,Buffer){
'use strict'

var http = require('http')
  , https = require('https')
  , url = require('url')
  , util = require('util')
  , stream = require('stream')
  , zlib = require('zlib')
  , bl = require('bl')
  , hawk = require('hawk')
  , aws = require('aws-sign2')
  , httpSignature = require('http-signature')
  , mime = require('mime-types')
  , stringstream = require('stringstream')
  , caseless = require('caseless')
  , ForeverAgent = require('forever-agent')
  , FormData = require('form-data')
  , helpers = require('./lib/helpers')
  , cookies = require('./lib/cookies')
  , getProxyFromURI = require('./lib/getProxyFromURI')
  , Querystring = require('./lib/querystring').Querystring
  , Har = require('./lib/har').Har
  , Auth = require('./lib/auth').Auth
  , OAuth = require('./lib/oauth').OAuth
  , Multipart = require('./lib/multipart').Multipart
  , Redirect = require('./lib/redirect').Redirect
  , Tunnel = require('./lib/tunnel').Tunnel

var safeStringify = helpers.safeStringify
  , isReadStream = helpers.isReadStream
  , toBase64 = helpers.toBase64
  , defer = helpers.defer
  , copy = helpers.copy
  , version = helpers.version
  , globalCookieJar = cookies.jar()


var globalPool = {}

function filterForNonReserved(reserved, options) {
  // Filter out properties that are not reserved.
  // Reserved values are passed in at call site.

  var object = {}
  for (var i in options) {
    var notReserved = (reserved.indexOf(i) === -1)
    if (notReserved) {
      object[i] = options[i]
    }
  }
  return object
}

function filterOutReservedFunctions(reserved, options) {
  // Filter out properties that are functions and are reserved.
  // Reserved values are passed in at call site.

  var object = {}
  for (var i in options) {
    var isReserved = !(reserved.indexOf(i) === -1)
    var isFunction = (typeof options[i] === 'function')
    if (!(isReserved && isFunction)) {
      object[i] = options[i]
    }
  }
  return object

}

// Function for properly handling a connection error
function connectionErrorHandler(error) {
  var socket = this
  if (socket.res) {
    if (socket.res.request) {
      socket.res.request.emit('error', error)
    } else {
      socket.res.emit('error', error)
    }
  } else {
    socket._httpMessage.emit('error', error)
  }
}

// Return a simpler request object to allow serialization
function requestToJSON() {
  var self = this
  return {
    uri: self.uri,
    method: self.method,
    headers: self.headers
  }
}

// Return a simpler response object to allow serialization
function responseToJSON() {
  var self = this
  return {
    statusCode: self.statusCode,
    body: self.body,
    headers: self.headers,
    request: requestToJSON.call(self.request)
  }
}

function Request (options) {
  // if given the method property in options, set property explicitMethod to true

  // extend the Request instance with any non-reserved properties
  // remove any reserved functions from the options object
  // set Request instance to be readable and writable
  // call init

  var self = this

  // start with HAR, then override with additional options
  if (options.har) {
    self._har = new Har(self)
    options = self._har.options(options)
  }

  stream.Stream.call(self)
  var reserved = Object.keys(Request.prototype)
  var nonReserved = filterForNonReserved(reserved, options)

  stream.Stream.call(self)
  util._extend(self, nonReserved)
  options = filterOutReservedFunctions(reserved, options)

  self.readable = true
  self.writable = true
  if (options.method) {
    self.explicitMethod = true
  }
  self._qs = new Querystring(self)
  self._auth = new Auth(self)
  self._oauth = new OAuth(self)
  self._multipart = new Multipart(self)
  self._redirect = new Redirect(self)
  self._tunnel = new Tunnel(self)
  self.init(options)
}

util.inherits(Request, stream.Stream)

// Debugging
Request.debug = process.env.NODE_DEBUG && /\brequest\b/.test(process.env.NODE_DEBUG)
function debug() {
  if (Request.debug) {
    console.error('REQUEST %s', util.format.apply(util, arguments))
  }
}
Request.prototype.debug = debug

Request.prototype.init = function (options) {
  // init() contains all the code to setup the request object.
  // the actual outgoing request is not started until start() is called
  // this function is called from both the constructor and on redirect.
  var self = this
  if (!options) {
    options = {}
  }
  self.headers = self.headers ? copy(self.headers) : {}

  // Delete headers with value undefined since they break
  // ClientRequest.OutgoingMessage.setHeader in node 0.12
  for (var headerName in self.headers) {
    if (typeof self.headers[headerName] === 'undefined') {
      delete self.headers[headerName]
    }
  }

  caseless.httpify(self, self.headers)

  if (!self.method) {
    self.method = options.method || 'GET'
  }
  if (!self.localAddress) {
    self.localAddress = options.localAddress
  }

  self._qs.init(options)

  debug(options)
  if (!self.pool && self.pool !== false) {
    self.pool = globalPool
  }
  self.dests = self.dests || []
  self.__isRequestRequest = true

  // Protect against double callback
  if (!self._callback && self.callback) {
    self._callback = self.callback
    self.callback = function () {
      if (self._callbackCalled) {
        return // Print a warning maybe?
      }
      self._callbackCalled = true
      self._callback.apply(self, arguments)
    }
    self.on('error', self.callback.bind())
    self.on('complete', self.callback.bind(self, null))
  }

  // People use this property instead all the time, so support it
  if (!self.uri && self.url) {
    self.uri = self.url
    delete self.url
  }

  // If there's a baseUrl, then use it as the base URL (i.e. uri must be
  // specified as a relative path and is appended to baseUrl).
  if (self.baseUrl) {
    if (typeof self.baseUrl !== 'string') {
      return self.emit('error', new Error('options.baseUrl must be a string'))
    }

    if (typeof self.uri !== 'string') {
      return self.emit('error', new Error('options.uri must be a string when using options.baseUrl'))
    }

    if (self.uri.indexOf('//') === 0 || self.uri.indexOf('://') !== -1) {
      return self.emit('error', new Error('options.uri must be a path when using options.baseUrl'))
    }

    // Handle all cases to make sure that there's only one slash between
    // baseUrl and uri.
    var baseUrlEndsWithSlash = self.baseUrl.lastIndexOf('/') === self.baseUrl.length - 1
    var uriStartsWithSlash = self.uri.indexOf('/') === 0

    if (baseUrlEndsWithSlash && uriStartsWithSlash) {
      self.uri = self.baseUrl + self.uri.slice(1)
    } else if (baseUrlEndsWithSlash || uriStartsWithSlash) {
      self.uri = self.baseUrl + self.uri
    } else if (self.uri === '') {
      self.uri = self.baseUrl
    } else {
      self.uri = self.baseUrl + '/' + self.uri
    }
    delete self.baseUrl
  }

  // A URI is needed by this point, emit error if we haven't been able to get one
  if (!self.uri) {
    return self.emit('error', new Error('options.uri is a required argument'))
  }

  // If a string URI/URL was given, parse it into a URL object
  if (typeof self.uri === 'string') {
    self.uri = url.parse(self.uri)
  }

  // DEPRECATED: Warning for users of the old Unix Sockets URL Scheme
  if (self.uri.protocol === 'unix:') {
    return self.emit('error', new Error('`unix://` URL scheme is no longer supported. Please use the format `http://unix:SOCKET:PATH`'))
  }

  // Support Unix Sockets
  if (self.uri.host === 'unix') {
    self.enableUnixSocket()
  }

  if (self.strictSSL === false) {
    self.rejectUnauthorized = false
  }

  if (!self.uri.pathname) {self.uri.pathname = '/'}

  if (!(self.uri.host || (self.uri.hostname && self.uri.port)) && !self.uri.isUnix) {
    // Invalid URI: it may generate lot of bad errors, like 'TypeError: Cannot call method `indexOf` of undefined' in CookieJar
    // Detect and reject it as soon as possible
    var faultyUri = url.format(self.uri)
    var message = 'Invalid URI "' + faultyUri + '"'
    if (Object.keys(options).length === 0) {
      // No option ? This can be the sign of a redirect
      // As this is a case where the user cannot do anything (they didn't call request directly with this URL)
      // they should be warned that it can be caused by a redirection (can save some hair)
      message += '. This can be caused by a crappy redirection.'
    }
    // This error was fatal
    return self.emit('error', new Error(message))
  }

  if (!self.hasOwnProperty('proxy')) {
    self.proxy = getProxyFromURI(self.uri)
  }

  self.tunnel = self._tunnel.isEnabled(options)
  if (self.proxy) {
    self._tunnel.setup(options)
  }

  self._redirect.onRequest(options)

  self.setHost = false
  if (!self.hasHeader('host')) {
    var hostHeaderName = self.originalHostHeaderName || 'host'
    self.setHeader(hostHeaderName, self.uri.hostname)
    if (self.uri.port) {
      if ( !(self.uri.port === 80 && self.uri.protocol === 'http:') &&
           !(self.uri.port === 443 && self.uri.protocol === 'https:') ) {
        self.setHeader(hostHeaderName, self.getHeader('host') + (':' + self.uri.port) )
      }
    }
    self.setHost = true
  }

  self.jar(self._jar || options.jar)

  if (!self.uri.port) {
    if (self.uri.protocol === 'http:') {self.uri.port = 80}
    else if (self.uri.protocol === 'https:') {self.uri.port = 443}
  }

  if (self.proxy && !self.tunnel) {
    self.port = self.proxy.port
    self.host = self.proxy.hostname
  } else {
    self.port = self.uri.port
    self.host = self.uri.hostname
  }

  if (options.form) {
    self.form(options.form)
  }

  if (options.formData) {
    var formData = options.formData
    var requestForm = self.form()
    var appendFormValue = function (key, value) {
      if (value.hasOwnProperty('value') && value.hasOwnProperty('options')) {
        requestForm.append(key, value.value, value.options)
      } else {
        requestForm.append(key, value)
      }
    }
    for (var formKey in formData) {
      if (formData.hasOwnProperty(formKey)) {
        var formValue = formData[formKey]
        if (formValue instanceof Array) {
          for (var j = 0; j < formValue.length; j++) {
            appendFormValue(formKey, formValue[j])
          }
        } else {
          appendFormValue(formKey, formValue)
        }
      }
    }
  }

  if (options.qs) {
    self.qs(options.qs)
  }

  if (self.uri.path) {
    self.path = self.uri.path
  } else {
    self.path = self.uri.pathname + (self.uri.search || '')
  }

  if (self.path.length === 0) {
    self.path = '/'
  }

  // Auth must happen last in case signing is dependent on other headers
  if (options.aws) {
    self.aws(options.aws)
  }

  if (options.hawk) {
    self.hawk(options.hawk)
  }

  if (options.httpSignature) {
    self.httpSignature(options.httpSignature)
  }

  if (options.auth) {
    if (Object.prototype.hasOwnProperty.call(options.auth, 'username')) {
      options.auth.user = options.auth.username
    }
    if (Object.prototype.hasOwnProperty.call(options.auth, 'password')) {
      options.auth.pass = options.auth.password
    }

    self.auth(
      options.auth.user,
      options.auth.pass,
      options.auth.sendImmediately,
      options.auth.bearer
    )
  }

  if (self.gzip && !self.hasHeader('accept-encoding')) {
    self.setHeader('accept-encoding', 'gzip')
  }

  if (self.uri.auth && !self.hasHeader('authorization')) {
    var uriAuthPieces = self.uri.auth.split(':').map(function(item) {return self._qs.unescape(item)})
    self.auth(uriAuthPieces[0], uriAuthPieces.slice(1).join(':'), true)
  }

  if (!self.tunnel && self.proxy && self.proxy.auth && !self.hasHeader('proxy-authorization')) {
    var proxyAuthPieces = self.proxy.auth.split(':').map(function(item) {return self._qs.unescape(item)})
    var authHeader = 'Basic ' + toBase64(proxyAuthPieces.join(':'))
    self.setHeader('proxy-authorization', authHeader)
  }

  if (self.proxy && !self.tunnel) {
    self.path = (self.uri.protocol + '//' + self.uri.host + self.path)
  }

  if (options.json) {
    self.json(options.json)
  }
  if (options.multipart) {
    self.multipart(options.multipart)
  }

  if (options.time) {
    self.timing = true
    self.elapsedTime = self.elapsedTime || 0
  }

  function setContentLength () {
    if (!self.hasHeader('content-length')) {
      var length
      if (typeof self.body === 'string') {
        length = Buffer.byteLength(self.body)
      }
      else if (Array.isArray(self.body)) {
        length = self.body.reduce(function (a, b) {return a + b.length}, 0)
      }
      else {
        length = self.body.length
      }

      if (length) {
        self.setHeader('content-length', length)
      } else {
        self.emit('error', new Error('Argument error, options.body.'))
      }
    }
  }
  if (self.body) {
    setContentLength()
  }

  if (options.oauth) {
    self.oauth(options.oauth)
  } else if (self._oauth.params && self.hasHeader('authorization')) {
    self.oauth(self._oauth.params)
  }

  var protocol = self.proxy && !self.tunnel ? self.proxy.protocol : self.uri.protocol
    , defaultModules = {'http:':http, 'https:':https}
    , httpModules = self.httpModules || {}

  self.httpModule = httpModules[protocol] || defaultModules[protocol]

  if (!self.httpModule) {
    return self.emit('error', new Error('Invalid protocol: ' + protocol))
  }

  if (options.ca) {
    self.ca = options.ca
  }

  if (!self.agent) {
    if (options.agentOptions) {
      self.agentOptions = options.agentOptions
    }

    if (options.agentClass) {
      self.agentClass = options.agentClass
    } else if (options.forever) {
      var v = version()
      // use ForeverAgent in node 0.10- only
      if (v.major === 0 && v.minor <= 10) {
        self.agentClass = protocol === 'http:' ? ForeverAgent : ForeverAgent.SSL
      } else {
        self.agentClass = self.httpModule.Agent
        self.agentOptions = self.agentOptions || {}
        self.agentOptions.keepAlive = true
      }
    } else {
      self.agentClass = self.httpModule.Agent
    }
  }

  if (self.pool === false) {
    self.agent = false
  } else {
    self.agent = self.agent || self.getNewAgent()
  }

  self.on('pipe', function (src) {
    if (self.ntick && self._started) {
      self.emit('error', new Error('You cannot pipe to this stream after the outbound request has started.'))
    }
    self.src = src
    if (isReadStream(src)) {
      if (!self.hasHeader('content-type')) {
        self.setHeader('content-type', mime.lookup(src.path))
      }
    } else {
      if (src.headers) {
        for (var i in src.headers) {
          if (!self.hasHeader(i)) {
            self.setHeader(i, src.headers[i])
          }
        }
      }
      if (self._json && !self.hasHeader('content-type')) {
        self.setHeader('content-type', 'application/json')
      }
      if (src.method && !self.explicitMethod) {
        self.method = src.method
      }
    }

    // self.on('pipe', function () {
    //   console.error('You have already piped to this stream. Pipeing twice is likely to break the request.')
    // })
  })

  defer(function () {
    if (self._aborted) {
      return
    }

    var end = function () {
      if (self._form) {
        if (!self._auth.hasAuth) {
          self._form.pipe(self)
        }
        else if (self._auth.hasAuth && self._auth.sentAuth) {
          self._form.pipe(self)
        }
      }
      if (self._multipart && self._multipart.chunked) {
        self._multipart.body.pipe(self)
      }
      if (self.body) {
        setContentLength()
        if (Array.isArray(self.body)) {
          self.body.forEach(function (part) {
            self.write(part)
          })
        } else {
          self.write(self.body)
        }
        self.end()
      } else if (self.requestBodyStream) {
        console.warn('options.requestBodyStream is deprecated, please pass the request object to stream.pipe.')
        self.requestBodyStream.pipe(self)
      } else if (!self.src) {
        if (self._auth.hasAuth && !self._auth.sentAuth) {
          self.end()
          return
        }
        if (self.method !== 'GET' && typeof self.method !== 'undefined') {
          self.setHeader('content-length', 0)
        }
        self.end()
      }
    }

    if (self._form && !self.hasHeader('content-length')) {
      // Before ending the request, we had to compute the length of the whole form, asyncly
      self.setHeader(self._form.getHeaders(), true)
      self._form.getLength(function (err, length) {
        if (!err) {
          self.setHeader('content-length', length)
        }
        end()
      })
    } else {
      end()
    }

    self.ntick = true
  })

}

// Must call this when following a redirect from https to http or vice versa
// Attempts to keep everything as identical as possible, but update the
// httpModule, Tunneling agent, and/or Forever Agent in use.
Request.prototype._updateProtocol = function () {
  var self = this
  var protocol = self.uri.protocol

  if (protocol === 'https:' || self.tunnel) {
    // previously was doing http, now doing https
    // if it's https, then we might need to tunnel now.
    if (self.proxy) {
      if (self._tunnel.setup()) {
        return
      }
    }

    self.httpModule = https
    switch (self.agentClass) {
      case ForeverAgent:
        self.agentClass = ForeverAgent.SSL
        break
      case http.Agent:
        self.agentClass = https.Agent
        break
      default:
        // nothing we can do.  Just hope for the best.
        return
    }

    // if there's an agent, we need to get a new one.
    if (self.agent) {
      self.agent = self.getNewAgent()
    }

  } else {
    // previously was doing https, now doing http
    self.httpModule = http
    switch (self.agentClass) {
      case ForeverAgent.SSL:
        self.agentClass = ForeverAgent
        break
      case https.Agent:
        self.agentClass = http.Agent
        break
      default:
        // nothing we can do.  just hope for the best
        return
    }

    // if there's an agent, then get a new one.
    if (self.agent) {
      self.agent = null
      self.agent = self.getNewAgent()
    }
  }
}

Request.prototype.getNewAgent = function () {
  var self = this
  var Agent = self.agentClass
  var options = {}
  if (self.agentOptions) {
    for (var i in self.agentOptions) {
      options[i] = self.agentOptions[i]
    }
  }
  if (self.ca) {
    options.ca = self.ca
  }
  if (self.ciphers) {
    options.ciphers = self.ciphers
  }
  if (self.secureProtocol) {
    options.secureProtocol = self.secureProtocol
  }
  if (self.secureOptions) {
    options.secureOptions = self.secureOptions
  }
  if (typeof self.rejectUnauthorized !== 'undefined') {
    options.rejectUnauthorized = self.rejectUnauthorized
  }

  if (self.cert && self.key) {
    options.key = self.key
    options.cert = self.cert
  }

  if (self.pfx) {
    options.pfx = self.pfx
  }

  if (self.passphrase) {
    options.passphrase = self.passphrase
  }

  var poolKey = ''

  // different types of agents are in different pools
  if (Agent !== self.httpModule.Agent) {
    poolKey += Agent.name
  }

  // ca option is only relevant if proxy or destination are https
  var proxy = self.proxy
  if (typeof proxy === 'string') {
    proxy = url.parse(proxy)
  }
  var isHttps = (proxy && proxy.protocol === 'https:') || this.uri.protocol === 'https:'

  if (isHttps) {
    if (options.ca) {
      if (poolKey) {
        poolKey += ':'
      }
      poolKey += options.ca
    }

    if (typeof options.rejectUnauthorized !== 'undefined') {
      if (poolKey) {
        poolKey += ':'
      }
      poolKey += options.rejectUnauthorized
    }

    if (options.cert) {
      if (poolKey) {
        poolKey += ':'
      }
      poolKey += options.cert.toString('ascii') + options.key.toString('ascii')
    }

    if (options.pfx) {
      if (poolKey) {
        poolKey += ':'
      }
      poolKey += options.pfx.toString('ascii')
    }

    if (options.ciphers) {
      if (poolKey) {
        poolKey += ':'
      }
      poolKey += options.ciphers
    }

    if (options.secureProtocol) {
      if (poolKey) {
        poolKey += ':'
      }
      poolKey += options.secureProtocol
    }

    if (options.secureOptions) {
      if (poolKey) {
        poolKey += ':'
      }
      poolKey += options.secureOptions
    }
  }

  if (self.pool === globalPool && !poolKey && Object.keys(options).length === 0 && self.httpModule.globalAgent) {
    // not doing anything special.  Use the globalAgent
    return self.httpModule.globalAgent
  }

  // we're using a stored agent.  Make sure it's protocol-specific
  poolKey = self.uri.protocol + poolKey

  // generate a new agent for this setting if none yet exists
  if (!self.pool[poolKey]) {
    self.pool[poolKey] = new Agent(options)
    // properly set maxSockets on new agents
    if (self.pool.maxSockets) {
      self.pool[poolKey].maxSockets = self.pool.maxSockets
    }
  }

  return self.pool[poolKey]
}

Request.prototype.start = function () {
  // start() is called once we are ready to send the outgoing HTTP request.
  // this is usually called on the first write(), end() or on nextTick()
  var self = this

  if (self._aborted) {
    return
  }

  self._started = true
  self.method = self.method || 'GET'
  self.href = self.uri.href

  if (self.src && self.src.stat && self.src.stat.size && !self.hasHeader('content-length')) {
    self.setHeader('content-length', self.src.stat.size)
  }
  if (self._aws) {
    self.aws(self._aws, true)
  }

  // We have a method named auth, which is completely different from the http.request
  // auth option.  If we don't remove it, we're gonna have a bad time.
  var reqOptions = copy(self)
  delete reqOptions.auth

  debug('make request', self.uri.href)

  self.req = self.httpModule.request(reqOptions)

  if (self.timing) {
    self.startTime = new Date().getTime()
  }

  if (self.timeout && !self.timeoutTimer) {
    var timeout = self.timeout < 0 ? 0 : self.timeout
    // Set a timeout in memory - this block will throw if the server takes more
    // than `timeout` to write the HTTP status and headers (corresponding to
    // the on('response') event on the client). NB: this measures wall-clock
    // time, not the time between bytes sent by the server.
    self.timeoutTimer = setTimeout(function () {
      var connectTimeout = self.req.socket && self.req.socket.readable === false
      self.abort()
      var e = new Error('ETIMEDOUT')
      e.code = 'ETIMEDOUT'
      e.connect = connectTimeout
      self.emit('error', e)
    }, timeout)

    if (self.req.setTimeout) { // only works on node 0.6+
      // Set an additional timeout on the socket, via the `setsockopt` syscall.
      // This timeout sets the amount of time to wait *between* bytes sent
      // from the server, and may or may not correspond to the wall-clock time
      // elapsed from the start of the request.
      //
      // In particular, it's useful for erroring if the server fails to send
      // data halfway through streaming a response.
      self.req.setTimeout(timeout, function () {
        if (self.req) {
          self.req.abort()
          var e = new Error('ESOCKETTIMEDOUT')
          e.code = 'ESOCKETTIMEDOUT'
          e.connect = false
          self.emit('error', e)
        }
      })
    }
  }

  self.req.on('response', self.onRequestResponse.bind(self))
  self.req.on('error', self.onRequestError.bind(self))
  self.req.on('drain', function() {
    self.emit('drain')
  })
  self.req.on('socket', function(socket) {
    self.emit('socket', socket)
  })

  self.on('end', function() {
    if ( self.req.connection ) {
      self.req.connection.removeListener('error', connectionErrorHandler)
    }
  })
  self.emit('request', self.req)
}

Request.prototype.onRequestError = function (error) {
  var self = this
  if (self._aborted) {
    return
  }
  if (self.req && self.req._reusedSocket && error.code === 'ECONNRESET'
      && self.agent.addRequestNoreuse) {
    self.agent = { addRequest: self.agent.addRequestNoreuse.bind(self.agent) }
    self.start()
    self.req.end()
    return
  }
  if (self.timeout && self.timeoutTimer) {
    clearTimeout(self.timeoutTimer)
    self.timeoutTimer = null
  }
  self.emit('error', error)
}

Request.prototype.onRequestResponse = function (response) {
  var self = this
  debug('onRequestResponse', self.uri.href, response.statusCode, response.headers)
  response.on('end', function() {
    if (self.timing) {
      self.elapsedTime += (new Date().getTime() - self.startTime)
      debug('elapsed time', self.elapsedTime)
      response.elapsedTime = self.elapsedTime
    }
    debug('response end', self.uri.href, response.statusCode, response.headers)
  })

  // The check on response.connection is a workaround for browserify.
  if (response.connection && response.connection.listeners('error').indexOf(connectionErrorHandler) === -1) {
    response.connection.setMaxListeners(0)
    response.connection.once('error', connectionErrorHandler)
  }
  if (self._aborted) {
    debug('aborted', self.uri.href)
    response.resume()
    return
  }

  self.response = response
  response.request = self
  response.toJSON = responseToJSON

  // XXX This is different on 0.10, because SSL is strict by default
  if (self.httpModule === https &&
      self.strictSSL && (!response.hasOwnProperty('socket') ||
      !response.socket.authorized)) {
    debug('strict ssl error', self.uri.href)
    var sslErr = response.hasOwnProperty('socket') ? response.socket.authorizationError : self.uri.href + ' does not support SSL'
    self.emit('error', new Error('SSL Error: ' + sslErr))
    return
  }

  // Save the original host before any redirect (if it changes, we need to
  // remove any authorization headers).  Also remember the case of the header
  // name because lots of broken servers expect Host instead of host and we
  // want the caller to be able to specify this.
  self.originalHost = self.getHeader('host')
  if (!self.originalHostHeaderName) {
    self.originalHostHeaderName = self.hasHeader('host')
  }
  if (self.setHost) {
    self.removeHeader('host')
  }
  if (self.timeout && self.timeoutTimer) {
    clearTimeout(self.timeoutTimer)
    self.timeoutTimer = null
  }

  var targetCookieJar = (self._jar && self._jar.setCookie) ? self._jar : globalCookieJar
  var addCookie = function (cookie) {
    //set the cookie if it's domain in the href's domain.
    try {
      targetCookieJar.setCookie(cookie, self.uri.href, {ignoreError: true})
    } catch (e) {
      self.emit('error', e)
    }
  }

  response.caseless = caseless(response.headers)

  if (response.caseless.has('set-cookie') && (!self._disableCookies)) {
    var headerName = response.caseless.has('set-cookie')
    if (Array.isArray(response.headers[headerName])) {
      response.headers[headerName].forEach(addCookie)
    } else {
      addCookie(response.headers[headerName])
    }
  }

  if (self._redirect.onResponse(response)) {
    return // Ignore the rest of the response
  } else {
    // Be a good stream and emit end when the response is finished.
    // Hack to emit end on close because of a core bug that never fires end
    response.on('close', function () {
      if (!self._ended) {
        self.response.emit('end')
      }
    })

    response.on('end', function () {
      self._ended = true
    })

    var responseContent
    if (self.gzip) {
      var contentEncoding = response.headers['content-encoding'] || 'identity'
      contentEncoding = contentEncoding.trim().toLowerCase()

      if (contentEncoding === 'gzip') {
        responseContent = zlib.createGunzip()
        response.pipe(responseContent)
      } else {
        // Since previous versions didn't check for Content-Encoding header,
        // ignore any invalid values to preserve backwards-compatibility
        if (contentEncoding !== 'identity') {
          debug('ignoring unrecognized Content-Encoding ' + contentEncoding)
        }
        responseContent = response
      }
    } else {
      responseContent = response
    }

    if (self.encoding) {
      if (self.dests.length !== 0) {
        console.error('Ignoring encoding parameter as this stream is being piped to another stream which makes the encoding option invalid.')
      } else if (responseContent.setEncoding) {
        responseContent.setEncoding(self.encoding)
      } else {
        // Should only occur on node pre-v0.9.4 (joyent/node@9b5abe5) with
        // zlib streams.
        // If/When support for 0.9.4 is dropped, this should be unnecessary.
        responseContent = responseContent.pipe(stringstream(self.encoding))
      }
    }

    if (self._paused) {
      responseContent.pause()
    }

    self.responseContent = responseContent

    self.emit('response', response)

    self.dests.forEach(function (dest) {
      self.pipeDest(dest)
    })

    responseContent.on('data', function (chunk) {
      self._destdata = true
      self.emit('data', chunk)
    })
    responseContent.on('end', function (chunk) {
      self.emit('end', chunk)
    })
    responseContent.on('error', function (error) {
      self.emit('error', error)
    })
    responseContent.on('close', function () {self.emit('close')})

    if (self.callback) {
      self.readResponseBody(response)
    }
    //if no callback
    else {
      self.on('end', function () {
        if (self._aborted) {
          debug('aborted', self.uri.href)
          return
        }
        self.emit('complete', response)
      })
    }
  }
  debug('finish init function', self.uri.href)
}

Request.prototype.readResponseBody = function (response) {
  var self = this
  debug('reading response\'s body')
  var buffer = bl()
    , strings = []

  self.on('data', function (chunk) {
    if (Buffer.isBuffer(chunk)) {
      buffer.append(chunk)
    } else {
      strings.push(chunk)
    }
  })
  self.on('end', function () {
    debug('end event', self.uri.href)
    if (self._aborted) {
      debug('aborted', self.uri.href)
      return
    }

    if (buffer.length) {
      debug('has body', self.uri.href, buffer.length)
      if (self.encoding === null) {
        // response.body = buffer
        // can't move to this until https://github.com/rvagg/bl/issues/13
        response.body = buffer.slice()
      } else {
        response.body = buffer.toString(self.encoding)
      }
    } else if (strings.length) {
      // The UTF8 BOM [0xEF,0xBB,0xBF] is converted to [0xFE,0xFF] in the JS UTC16/UCS2 representation.
      // Strip this value out when the encoding is set to 'utf8', as upstream consumers won't expect it and it breaks JSON.parse().
      if (self.encoding === 'utf8' && strings[0].length > 0 && strings[0][0] === '\uFEFF') {
        strings[0] = strings[0].substring(1)
      }
      response.body = strings.join('')
    }

    if (self._json) {
      try {
        response.body = JSON.parse(response.body, self._jsonReviver)
      } catch (e) {
        debug('invalid JSON received', self.uri.href)
      }
    }
    debug('emitting complete', self.uri.href)
    if (typeof response.body === 'undefined' && !self._json) {
      response.body = self.encoding === null ? new Buffer(0) : ''
    }
    self.emit('complete', response, response.body)
  })
}

Request.prototype.abort = function () {
  var self = this
  self._aborted = true

  if (self.req) {
    self.req.abort()
  }
  else if (self.response) {
    self.response.abort()
  }

  self.emit('abort')
}

Request.prototype.pipeDest = function (dest) {
  var self = this
  var response = self.response
  // Called after the response is received
  if (dest.headers && !dest.headersSent) {
    if (response.caseless.has('content-type')) {
      var ctname = response.caseless.has('content-type')
      if (dest.setHeader) {
        dest.setHeader(ctname, response.headers[ctname])
      }
      else {
        dest.headers[ctname] = response.headers[ctname]
      }
    }

    if (response.caseless.has('content-length')) {
      var clname = response.caseless.has('content-length')
      if (dest.setHeader) {
        dest.setHeader(clname, response.headers[clname])
      } else {
        dest.headers[clname] = response.headers[clname]
      }
    }
  }
  if (dest.setHeader && !dest.headersSent) {
    for (var i in response.headers) {
      // If the response content is being decoded, the Content-Encoding header
      // of the response doesn't represent the piped content, so don't pass it.
      if (!self.gzip || i !== 'content-encoding') {
        dest.setHeader(i, response.headers[i])
      }
    }
    dest.statusCode = response.statusCode
  }
  if (self.pipefilter) {
    self.pipefilter(response, dest)
  }
}

Request.prototype.qs = function (q, clobber) {
  var self = this
  var base
  if (!clobber && self.uri.query) {
    base = self._qs.parse(self.uri.query)
  } else {
    base = {}
  }

  for (var i in q) {
    base[i] = q[i]
  }

  var qs = self._qs.stringify(base)

  if (qs === '') {
    return self
  }

  self.uri = url.parse(self.uri.href.split('?')[0] + '?' + qs)
  self.url = self.uri
  self.path = self.uri.path

  if (self.uri.host === 'unix') {
    self.enableUnixSocket()
  }

  return self
}
Request.prototype.form = function (form) {
  var self = this
  if (form) {
    if (!/^application\/x-www-form-urlencoded\b/.test(self.getHeader('content-type'))) {
      self.setHeader('content-type', 'application/x-www-form-urlencoded')
    }
    self.body = (typeof form === 'string')
      ? self._qs.rfc3986(form.toString('utf8'))
      : self._qs.stringify(form).toString('utf8')
    return self
  }
  // create form-data object
  self._form = new FormData()
  self._form.on('error', function(err) {
    err.message = 'form-data: ' + err.message
    self.emit('error', err)
    self.abort()
  })
  return self._form
}
Request.prototype.multipart = function (multipart) {
  var self = this

  self._multipart.onRequest(multipart)

  if (!self._multipart.chunked) {
    self.body = self._multipart.body
  }

  return self
}
Request.prototype.json = function (val) {
  var self = this

  if (!self.hasHeader('accept')) {
    self.setHeader('accept', 'application/json')
  }

  self._json = true
  if (typeof val === 'boolean') {
    if (self.body !== undefined) {
      if (!/^application\/x-www-form-urlencoded\b/.test(self.getHeader('content-type'))) {
        self.body = safeStringify(self.body)
      } else {
        self.body = self._qs.rfc3986(self.body)
      }
      if (!self.hasHeader('content-type')) {
        self.setHeader('content-type', 'application/json')
      }
    }
  } else {
    self.body = safeStringify(val)
    if (!self.hasHeader('content-type')) {
      self.setHeader('content-type', 'application/json')
    }
  }

  if (typeof self.jsonReviver === 'function') {
    self._jsonReviver = self.jsonReviver
  }

  return self
}
Request.prototype.getHeader = function (name, headers) {
  var self = this
  var result, re, match
  if (!headers) {
    headers = self.headers
  }
  Object.keys(headers).forEach(function (key) {
    if (key.length !== name.length) {
      return
    }
    re = new RegExp(name, 'i')
    match = key.match(re)
    if (match) {
      result = headers[key]
    }
  })
  return result
}
Request.prototype.enableUnixSocket = function () {
  // Get the socket & request paths from the URL
  var unixParts = this.uri.path.split(':')
    , host = unixParts[0]
    , path = unixParts[1]
  // Apply unix properties to request
  this.socketPath = host
  this.uri.pathname = path
  this.uri.path = path
  this.uri.host = host
  this.uri.hostname = host
  this.uri.isUnix = true
}


Request.prototype.auth = function (user, pass, sendImmediately, bearer) {
  var self = this

  self._auth.onRequest(user, pass, sendImmediately, bearer)

  return self
}
Request.prototype.aws = function (opts, now) {
  var self = this

  if (!now) {
    self._aws = opts
    return self
  }
  var date = new Date()
  self.setHeader('date', date.toUTCString())
  var auth =
    { key: opts.key
    , secret: opts.secret
    , verb: self.method.toUpperCase()
    , date: date
    , contentType: self.getHeader('content-type') || ''
    , md5: self.getHeader('content-md5') || ''
    , amazonHeaders: aws.canonicalizeHeaders(self.headers)
    }
  var path = self.uri.path
  if (opts.bucket && path) {
    auth.resource = '/' + opts.bucket + path
  } else if (opts.bucket && !path) {
    auth.resource = '/' + opts.bucket
  } else if (!opts.bucket && path) {
    auth.resource = path
  } else if (!opts.bucket && !path) {
    auth.resource = '/'
  }
  auth.resource = aws.canonicalizeResource(auth.resource)
  self.setHeader('authorization', aws.authorization(auth))

  return self
}
Request.prototype.httpSignature = function (opts) {
  var self = this
  httpSignature.signRequest({
    getHeader: function(header) {
      return self.getHeader(header, self.headers)
    },
    setHeader: function(header, value) {
      self.setHeader(header, value)
    },
    method: self.method,
    path: self.path
  }, opts)
  debug('httpSignature authorization', self.getHeader('authorization'))

  return self
}
Request.prototype.hawk = function (opts) {
  var self = this
  self.setHeader('Authorization', hawk.client.header(self.uri, self.method, opts).field)
}
Request.prototype.oauth = function (_oauth) {
  var self = this

  self._oauth.onRequest(_oauth)

  return self
}

Request.prototype.jar = function (jar) {
  var self = this
  var cookies

  if (self._redirect.redirectsFollowed === 0) {
    self.originalCookieHeader = self.getHeader('cookie')
  }

  if (!jar) {
    // disable cookies
    cookies = false
    self._disableCookies = true
  } else {
    var targetCookieJar = (jar && jar.getCookieString) ? jar : globalCookieJar
    var urihref = self.uri.href
    //fetch cookie in the Specified host
    if (targetCookieJar) {
      cookies = targetCookieJar.getCookieString(urihref)
    }
  }

  //if need cookie and cookie is not empty
  if (cookies && cookies.length) {
    if (self.originalCookieHeader) {
      // Don't overwrite existing Cookie header
      self.setHeader('cookie', self.originalCookieHeader + '; ' + cookies)
    } else {
      self.setHeader('cookie', cookies)
    }
  }
  self._jar = jar
  return self
}


// Stream API
Request.prototype.pipe = function (dest, opts) {
  var self = this

  if (self.response) {
    if (self._destdata) {
      self.emit('error', new Error('You cannot pipe after data has been emitted from the response.'))
    } else if (self._ended) {
      self.emit('error', new Error('You cannot pipe after the response has been ended.'))
    } else {
      stream.Stream.prototype.pipe.call(self, dest, opts)
      self.pipeDest(dest)
      return dest
    }
  } else {
    self.dests.push(dest)
    stream.Stream.prototype.pipe.call(self, dest, opts)
    return dest
  }
}
Request.prototype.write = function () {
  var self = this
  if (!self._started) {
    self.start()
  }
  return self.req.write.apply(self.req, arguments)
}
Request.prototype.end = function (chunk) {
  var self = this
  if (chunk) {
    self.write(chunk)
  }
  if (!self._started) {
    self.start()
  }
  self.req.end()
}
Request.prototype.pause = function () {
  var self = this
  if (!self.responseContent) {
    self._paused = true
  } else {
    self.responseContent.pause.apply(self.responseContent, arguments)
  }
}
Request.prototype.resume = function () {
  var self = this
  if (!self.responseContent) {
    self._paused = false
  } else {
    self.responseContent.resume.apply(self.responseContent, arguments)
  }
}
Request.prototype.destroy = function () {
  var self = this
  if (!self._ended) {
    self.end()
  } else if (self.response) {
    self.response.destroy()
  }
}

Request.defaultProxyHeaderWhiteList =
  Tunnel.defaultProxyHeaderWhiteList.slice()

Request.defaultProxyHeaderExclusiveList =
  Tunnel.defaultProxyHeaderExclusiveList.slice()

// Exports

Request.prototype.toJSON = requestToJSON
module.exports = Request

}).call(this,require('_process'),require("buffer").Buffer)
},{"./lib/auth":385,"./lib/cookies":386,"./lib/getProxyFromURI":387,"./lib/har":388,"./lib/helpers":389,"./lib/multipart":390,"./lib/oauth":391,"./lib/querystring":392,"./lib/redirect":393,"./lib/tunnel":394,"_process":215,"aws-sign2":395,"bl":396,"buffer":18,"caseless":407,"forever-agent":411,"form-data":412,"hawk":441,"http":234,"http-signature":442,"https":209,"mime-types":459,"stream":233,"stringstream":468,"url":245,"util":247,"zlib":17}],478:[function(require,module,exports){
(function (process){
/// <reference path="index.ts" />
/// <reference path="typings/tsd.d.ts" />
/// <reference path="./interfaces.ts" />
var path = require("path");
var beautylog = require("beautylog");
var cliff = require("cliff");
var inquirer = require("inquirer");
var argv = require('yargs').argv;
//define the smartcli object
var smartcli = {};
//add plugins from above for direct use
smartcli.inquirer = inquirer;
smartcli.cliff = cliff;
smartcli.argv = argv;
/* ------------------------------------------------------------------------------
 *----------------------- initial call CLI args -----------------------------
 *----------------------------------------------------------------------------- */
// commands
smartcli.checkCommand = function (commandString) {
    if (argv._.indexOf(commandString) != -1) {
        return true;
    }
    return false;
};
smartcli.getCommands = function () {
    return argv._;
};
// options
smartcli.getOption = function (optionName) {
    if (argv.hasOwnProperty(optionName)) {
        return {
            name: optionName,
            specified: true,
            value: argv[optionName] //we already know from the "if" above that the value is available.
        };
    }
    return {
        name: optionName,
        specified: false,
        value: false
    };
};
smartcli.getOptions = function () {
    var options = {};
    for (var key in argv) {
        if (key != "_") {
            options['key'] = argv['key'];
        }
    }
    return options;
};
/**
 * returns Directory of cwd
 * @returns {{path: string}}
 */
smartcli.getCwd = function () {
    return {
        path: process.cwd()
    };
};
/* ------------------------------------------------------------------------------
*----------------------- in program CLI interaction -----------------------------
*----------------------------------------------------------------------------- */
/**
 * executes callback with answer to question as argument
 * @param questionString the question you want to ask the user
 * @param cb the function to execute with answer as param
 * @returns {null}
 */
smartcli.getAnswer = function (questionString, cb) {
    if (typeof questionString != 'string') {
        beautylog.error('no question specified');
        return null;
    }
    //make inquirer compatible question object
    var question = {
        type: "input",
        name: "userFeedback",
        message: questionString,
        validate: function (value) {
            return true;
        }
    };
    inquirer.prompt([question], function (answers) {
        var answer = answers.userFeedback;
        cb(answer);
    });
};
/**
 *
 * @param questionString
 * @param choiceOptions
 * @param cb
 * @returns {null}
 */
smartcli.getChoice = function (questionString, choiceOptions, cb) {
    if (!Array.isArray(choiceOptions)) {
        return null;
    }
    //make inquirer compatible question object
    var question = {
        type: "list",
        name: "userFeedback",
        message: questionString,
        choices: choiceOptions,
        filter: function (val) { return val.toLowerCase(); }
    };
    inquirer.prompt(question, function (answers) {
        var answer = answers.userFeedback;
        cb(answer);
    });
};
module.exports = smartcli;

}).call(this,require('_process'))
},{"_process":215,"beautylog":252,"cliff":479,"inquirer":508,"path":214,"yargs":554}],479:[function(require,module,exports){
/*
 * cliff.js: CLI output formatting tools: "Your CLI Formatting Friend".
 *
 * (C) 2010, Charlie Robbins & the Contributors
 *
 */

var colors = require('colors'),
    eyes = require('eyes'),
    winston = require('winston');

var cliff = exports,
    logger;

cliff.__defineGetter__('logger', function () {
  delete cliff.logger;
  return cliff.logger = logger;
});

cliff.__defineSetter__('logger', function (val) {
  logger = val;

  //
  // Setup winston to use the `cli` formats
  //
  if (logger.cli) {
    logger.cli();
  }
});

//
// Set the default logger for cliff.
//
cliff.logger = new winston.Logger({
  transports: [new winston.transports.Console()]
});

//
// Expose a default `eyes` inspector.
//
cliff.inspector = eyes.inspector;
cliff.inspect   = eyes.inspector({ stream: null,
  styles: {               // Styles applied to stdout
    all:     null,        // Overall style applied to everything
    label:   'underline', // Inspection labels, like 'array' in `array: [1, 2, 3]`
    other:   'inverted',  // Objects which don't have a literal representation, such as functions
    key:     'grey',      // The keys in object literals, like 'a' in `{a: 1}`
    special: 'grey',      // null, undefined...
    number:  'blue',      // 0, 1, 2...
    bool:    'magenta',   // true false
    regexp:  'green'      // /\d+/
  }
});

//
// ### function extractFrom (obj, properties)
// #### @obj {Object} Object to extract properties from.
// #### @properties {Array} List of properties to output.
// Creates an array representing the values for `properties` in `obj`.
//
cliff.extractFrom = function (obj, properties) {
  return properties.map(function (p) {
    return obj[p];
  });
};

//
// ### function columnMajor (rows)
// #### @rows {ArrayxArray} Row-major Matrix to transpose
// Transposes the row-major Matrix, represented as an array of rows,
// into column major form (i.e. an array of columns).
//
cliff.columnMajor = function (rows) {
  var columns = [];

  rows.forEach(function (row) {
    for (var i = 0; i < row.length; i += 1) {
      if (!columns[i]) {
        columns[i] = [];
      }

      columns[i].push(row[i]);
    }
  });

  return columns;
};

//
// ### arrayLengths (arrs)
// #### @arrs {ArrayxArray} Arrays to calculate lengths for
// Creates an array with values each representing the length
// of an array in the set provided.
//
cliff.arrayLengths = function (arrs) {
  var i, lengths = [];
  for (i = 0; i < arrs.length; i += 1) {
    lengths.push(longestElement(arrs[i].map(cliff.stringifyLiteral)));
  }
  return lengths;
};

//
// ### function stringifyRows (rows, colors)
// #### @rows {ArrayxArray} Matrix of properties to output in row major form
// #### @colors {Array} Set of colors to use for the headers
// Outputs the specified `rows` as fixed-width columns, adding
// colorized headers if `colors` are supplied.
//
cliff.stringifyRows = function (rows, colors, options) {
  var lengths, columns, output = [], headers;

  options = options || {};
  options.columnSpacing = options.columnSpacing || 2;

  columns = cliff.columnMajor(rows);
  lengths = cliff.arrayLengths(columns);

  function stringifyRow(row, colorize) {
    var rowtext = '', padding, item, i, length;
    for (i = 0; i < row.length; i += 1) {
      item = cliff.stringifyLiteral(row[i]);

      if(colorize) {
        item = item[colors[i]] || item[colors[colors.length -1]] || item;
      }

      length = realLength(item);
      padding = length < lengths[i] ? lengths[i] - length + options.columnSpacing  : options.columnSpacing ;
      rowtext += item + new Array(padding).join(' ');
    }

    output.push(rowtext);
  }

  // If we were passed colors, then assume the first row
  // is the headers for the rows
  if (colors) {
    headers = rows.splice(0, 1)[0];
    stringifyRow(headers, true);
  }

  rows.forEach(function (row) {
    stringifyRow(row, false);
  });

  return output.join('\n');
};

//
// ### function rowifyObjects (objs, properties, colors)
// #### @objs {Array} List of objects to create output for
// #### @properties {Array} List of properties to output
// #### @colors {Array} Set of colors to use for the headers
// Extracts the lists of `properties` from the specified `objs`
// and formats them according to `cliff.stringifyRows`.
//
cliff.stringifyObjectRows = cliff.rowifyObjects = function (objs, properties, colors, options) {
  var rows = [properties].concat(objs.map(function (obj) {
    return cliff.extractFrom(obj, properties);
  }));

  return cliff.stringifyRows(rows, colors, options);
};

//
// ### function putRows (level, rows, colors)
// #### @level {String} Log-level to use
// #### @rows {Array} Array of rows to log at the specified level
// #### @colors {Array} Set of colors to use for the specified row(s) headers.
// Logs the stringified table result from `rows` at the appropriate `level` using
// `cliff.logger`. If `colors` are supplied then use those when stringifying `rows`.
//
cliff.putRows = function (level, rows, colors) {
  cliff.stringifyRows(rows, colors).split('\n').forEach(function (str) {
    logger.log(level, str);
  });
};

//
// ### function putObjectRows (level, rows, colors)
// #### @level {String} Log-level to use
// #### @objs {Array} List of objects to create output for
// #### @properties {Array} List of properties to output
// #### @colors {Array} Set of colors to use for the headers
// Logs the stringified table result from `objs` at the appropriate `level` using
// `cliff.logger`. If `colors` are supplied then use those when stringifying `objs`.
//
cliff.putObjectRows = function (level, objs, properties, colors) {
  cliff.rowifyObjects(objs, properties, colors).split('\n').forEach(function (str) {
    logger.log(level, str);
  });
};

//
// ### function putObject (obj, [rewriters, padding])
// #### @obj {Object} Object to log to the command line
// #### @rewriters {Object} **Optional** Set of methods to rewrite certain object keys
// #### @padding {Number} **Optional** Length of padding to put around the output.
// Inspects the object `obj` on the command line rewriting any properties which match
// keys in `rewriters` if any. Adds additional `padding` if supplied.
//
cliff.putObject = function (/*obj, [rewriters, padding] */) {
  var args = Array.prototype.slice.call(arguments),
      obj = args.shift(),
      padding = typeof args[args.length - 1] === 'number' && args.pop(),
      rewriters = typeof args[args.length -1] === 'object' && args.pop(),
      keys = Object.keys(obj).sort(),
      sorted = {},
      matchers = {},
      inspected;

  padding = padding || 0;
  rewriters = rewriters || {};

  function pad () {
    for (var i = 0; i < padding / 2; i++) {
      logger.data('');
    }
  }

  keys.forEach(function (key) {
    sorted[key] = obj[key];
  });

  inspected = cliff.inspect(sorted);

  Object.keys(rewriters).forEach(function (key) {
    matchers[key] = new RegExp(key);
  });

  pad();
  inspected.split('\n').forEach(function (line) {
    Object.keys(rewriters).forEach(function (key) {
      if (matchers[key].test(line)) {
        line = rewriters[key](line);
      }
    });
    logger.data(line);
  });
  pad();
};

cliff.stringifyLiteral = function stringifyLiteral (literal) {
  switch (cliff.typeOf(literal)) {
    case 'number'   : return literal + '';
    case 'null'     : return 'null';
    case 'undefined': return 'undefined';
    case 'boolean'  : return literal + '';
    default         : return literal;
  }
};

cliff.typeOf = function typeOf(value) {
  var s = typeof(value),
      types = [Object, Array, String, RegExp, Number, Function, Boolean, Date];

  if (s === 'object' || s === 'function') {
    if (value) {
      types.forEach(function (t) {
        if (value instanceof t) {
          s = t.name.toLowerCase();
        }
      });
    } else {
      s = 'null';
    }
  }

  return s;
};

function realLength(str) {
  return ("" + str).replace(/\u001b\[\d+m/g,'').length;
}

function longestElement(a) {
  var l = 0;
  for (var i = 0; i < a.length; i++) {
    var new_l = realLength(a[i]);
    if (l < new_l) {
      l = new_l;
    }
  }

  return l;
}

},{"colors":484,"eyes":491,"winston":492}],480:[function(require,module,exports){
/*

The MIT License (MIT)

Original Library 
  - Copyright (c) Marak Squires

Additional functionality
 - Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/

var colors = {};
module['exports'] = colors;

colors.themes = {};

var ansiStyles = colors.styles = require('./styles');
var defineProps = Object.defineProperties;

colors.supportsColor = require('./system/supports-colors');

if (typeof colors.enabled === "undefined") {
  colors.enabled = colors.supportsColor;
}

colors.stripColors = colors.strip = function(str){
  return ("" + str).replace(/\x1B\[\d+m/g, '');
};


var stylize = colors.stylize = function stylize (str, style) {
  return ansiStyles[style].open + str + ansiStyles[style].close;
}

var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
var escapeStringRegexp = function (str) {
  if (typeof str !== 'string') {
    throw new TypeError('Expected a string');
  }
  return str.replace(matchOperatorsRe,  '\\$&');
}

function build(_styles) {
  var builder = function builder() {
    return applyStyle.apply(builder, arguments);
  };
  builder._styles = _styles;
  // __proto__ is used because we must return a function, but there is
  // no way to create a function with a different prototype.
  builder.__proto__ = proto;
  return builder;
}

var styles = (function () {
  var ret = {};
  ansiStyles.grey = ansiStyles.gray;
  Object.keys(ansiStyles).forEach(function (key) {
    ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');
    ret[key] = {
      get: function () {
        return build(this._styles.concat(key));
      }
    };
  });
  return ret;
})();

var proto = defineProps(function colors() {}, styles);

function applyStyle() {
  var args = arguments;
  var argsLen = args.length;
  var str = argsLen !== 0 && String(arguments[0]);
  if (argsLen > 1) {
    for (var a = 1; a < argsLen; a++) {
      str += ' ' + args[a];
    }
  }

  if (!colors.enabled || !str) {
    return str;
  }

  var nestedStyles = this._styles;

  var i = nestedStyles.length;
  while (i--) {
    var code = ansiStyles[nestedStyles[i]];
    str = code.open + str.replace(code.closeRe, code.open) + code.close;
  }

  return str;
}

function applyTheme (theme) {
  for (var style in theme) {
    (function(style){
      colors[style] = function(str){
        return colors[theme[style]](str);
      };
    })(style)
  }
}

colors.setTheme = function (theme) {
  if (typeof theme === 'string') {
    try {
      colors.themes[theme] = require(theme);
      applyTheme(colors.themes[theme]);
      return colors.themes[theme];
    } catch (err) {
      console.log(err);
      return err;
    }
  } else {
    applyTheme(theme);
  }
};

function init() {
  var ret = {};
  Object.keys(styles).forEach(function (name) {
    ret[name] = {
      get: function () {
        return build([name]);
      }
    };
  });
  return ret;
}

var sequencer = function sequencer (map, str) {
  var exploded = str.split(""), i = 0;
  exploded = exploded.map(map);
  return exploded.join("");
};

// custom formatter methods
colors.trap = require('./custom/trap');
colors.zalgo = require('./custom/zalgo');

// maps
colors.maps = {};
colors.maps.america = require('./maps/america');
colors.maps.zebra = require('./maps/zebra');
colors.maps.rainbow = require('./maps/rainbow');
colors.maps.random = require('./maps/random')

for (var map in colors.maps) {
  (function(map){
    colors[map] = function (str) {
      return sequencer(colors.maps[map], str);
    }
  })(map)
}

defineProps(colors, init());
},{"./custom/trap":481,"./custom/zalgo":482,"./maps/america":485,"./maps/rainbow":486,"./maps/random":487,"./maps/zebra":488,"./styles":489,"./system/supports-colors":490}],481:[function(require,module,exports){
arguments[4][373][0].apply(exports,arguments)
},{"dup":373}],482:[function(require,module,exports){
// please no
module['exports'] = function zalgo(text, options) {
  text = text || "   he is here   ";
  var soul = {
    "up" : [
      '̍', '̎', '̄', '̅',
      '̿', '̑', '̆', '̐',
      '͒', '͗', '͑', '̇',
      '̈', '̊', '͂', '̓',
      '̈', '͊', '͋', '͌',
      '̃', '̂', '̌', '͐',
      '̀', '́', '̋', '̏',
      '̒', '̓', '̔', '̽',
      '̉', 'ͣ', 'ͤ', 'ͥ',
      'ͦ', 'ͧ', 'ͨ', 'ͩ',
      'ͪ', 'ͫ', 'ͬ', 'ͭ',
      'ͮ', 'ͯ', '̾', '͛',
      '͆', '̚'
    ],
    "down" : [
      '̖', '̗', '̘', '̙',
      '̜', '̝', '̞', '̟',
      '̠', '̤', '̥', '̦',
      '̩', '̪', '̫', '̬',
      '̭', '̮', '̯', '̰',
      '̱', '̲', '̳', '̹',
      '̺', '̻', '̼', 'ͅ',
      '͇', '͈', '͉', '͍',
      '͎', '͓', '͔', '͕',
      '͖', '͙', '͚', '̣'
    ],
    "mid" : [
      '̕', '̛', '̀', '́',
      '͘', '̡', '̢', '̧',
      '̨', '̴', '̵', '̶',
      '͜', '͝', '͞',
      '͟', '͠', '͢', '̸',
      '̷', '͡', ' ҉'
    ]
  },
  all = [].concat(soul.up, soul.down, soul.mid),
  zalgo = {};

  function randomNumber(range) {
    var r = Math.floor(Math.random() * range);
    return r;
  }

  function is_char(character) {
    var bool = false;
    all.filter(function (i) {
      bool = (i === character);
    });
    return bool;
  }
  

  function heComes(text, options) {
    var result = '', counts, l;
    options = options || {};
    options["up"] = options["up"] || true;
    options["mid"] = options["mid"] || true;
    options["down"] = options["down"] || true;
    options["size"] = options["size"] || "maxi";
    text = text.split('');
    for (l in text) {
      if (is_char(l)) {
        continue;
      }
      result = result + text[l];
      counts = {"up" : 0, "down" : 0, "mid" : 0};
      switch (options.size) {
      case 'mini':
        counts.up = randomNumber(8);
        counts.min = randomNumber(2);
        counts.down = randomNumber(8);
        break;
      case 'maxi':
        counts.up = randomNumber(16) + 3;
        counts.min = randomNumber(4) + 1;
        counts.down = randomNumber(64) + 3;
        break;
      default:
        counts.up = randomNumber(8) + 1;
        counts.mid = randomNumber(6) / 2;
        counts.down = randomNumber(8) + 1;
        break;
      }

      var arr = ["up", "mid", "down"];
      for (var d in arr) {
        var index = arr[d];
        for (var i = 0 ; i <= counts[index]; i++) {
          if (options[index]) {
            result = result + soul[index][randomNumber(soul[index].length)];
          }
        }
      }
    }
    return result;
  }
  // don't summon him
  return heComes(text);
}

},{}],483:[function(require,module,exports){
var colors = require('./colors'),
    styles = require('./styles');

module['exports'] = function () {

  //
  // Extends prototype of native string object to allow for "foo".red syntax
  //
  var addProperty = function (color, func) {
    String.prototype.__defineGetter__(color, func);
  };

  var sequencer = function sequencer (map, str) {
      return function () {
        var exploded = this.split(""), i = 0;
        exploded = exploded.map(map);
        return exploded.join("");
      }
  };

  var stylize = function stylize (str, style) {
    return styles[style].open + str + styles[style].close;
  }

  addProperty('strip', function () {
    return colors.strip(this);
  });

  addProperty('stripColors', function () {
    return colors.strip(this);
  });

  addProperty("trap", function(){
    return colors.trap(this);
  });

  addProperty("zalgo", function(){
    return colors.zalgo(this);
  });

  addProperty("zebra", function(){
    return colors.zebra(this);
  });

  addProperty("rainbow", function(){
    return colors.rainbow(this);
  });

  addProperty("random", function(){
    return colors.random(this);
  });

  addProperty("america", function(){
    return colors.america(this);
  });

  //
  // Iterate through all default styles and colors
  //
  var x = Object.keys(colors.styles);
  x.forEach(function (style) {
    addProperty(style, function () {
      return stylize(this, style);
    });
  });

  function applyTheme(theme) {
    //
    // Remark: This is a list of methods that exist
    // on String that you should not overwrite.
    //
    var stringPrototypeBlacklist = [
      '__defineGetter__', '__defineSetter__', '__lookupGetter__', '__lookupSetter__', 'charAt', 'constructor',
      'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'toLocaleString', 'toString', 'valueOf', 'charCodeAt',
      'indexOf', 'lastIndexof', 'length', 'localeCompare', 'match', 'replace', 'search', 'slice', 'split', 'substring',
      'toLocaleLowerCase', 'toLocaleUpperCase', 'toLowerCase', 'toUpperCase', 'trim', 'trimLeft', 'trimRight'
    ];

    Object.keys(theme).forEach(function (prop) {
      if (stringPrototypeBlacklist.indexOf(prop) !== -1) {
        console.log('warn: '.red + ('String.prototype' + prop).magenta + ' is probably something you don\'t want to override. Ignoring style name');
      }
      else {
        if (typeof(theme[prop]) === 'string') {
          colors[prop] = colors[theme[prop]];
          addProperty(prop, function () {
            return colors[theme[prop]](this);
          });
        }
        else {
          addProperty(prop, function () {
            var ret = this;
            for (var t = 0; t < theme[prop].length; t++) {
              ret = exports[theme[prop][t]](ret);
            }
            return ret;
          });
        }
      }
    });
  }

  colors.setTheme = function (theme) {
    if (typeof theme === 'string') {
      try {
        colors.themes[theme] = require(theme);
        applyTheme(colors.themes[theme]);
        return colors.themes[theme];
      } catch (err) {
        console.log(err);
        return err;
      }
    } else {
      applyTheme(theme);
    }
  };

};
},{"./colors":480,"./styles":489}],484:[function(require,module,exports){
var colors = require('./colors');
module['exports'] = colors;

// Remark: By default, colors will add style properties to String.prototype
//
// If you don't wish to extend String.prototype you can do this instead and native String will not be touched
//
//   var colors = require('colors/safe);
//   colors.red("foo")
//
//
var extendStringPrototype = require('./extendStringPrototype')();
},{"./colors":480,"./extendStringPrototype":483}],485:[function(require,module,exports){
arguments[4][377][0].apply(exports,arguments)
},{"../colors":480,"dup":377}],486:[function(require,module,exports){
arguments[4][378][0].apply(exports,arguments)
},{"../colors":480,"dup":378}],487:[function(require,module,exports){
arguments[4][379][0].apply(exports,arguments)
},{"../colors":480,"dup":379}],488:[function(require,module,exports){
arguments[4][380][0].apply(exports,arguments)
},{"../colors":480,"dup":380}],489:[function(require,module,exports){
arguments[4][381][0].apply(exports,arguments)
},{"dup":381}],490:[function(require,module,exports){
arguments[4][382][0].apply(exports,arguments)
},{"_process":215,"dup":382}],491:[function(require,module,exports){
(function (process){
//
// Eyes.js - a customizable value inspector for Node.js
//
//   usage:
//
//       var inspect = require('eyes').inspector({styles: {all: 'magenta'}});
//       inspect(something); // inspect with the settings passed to `inspector`
//
//     or
//
//       var eyes = require('eyes');
//       eyes.inspect(something); // inspect with the default settings
//
var eyes = exports,
    stack = [];

eyes.defaults = {
    styles: {                 // Styles applied to stdout
        all:     'cyan',      // Overall style applied to everything
        label:   'underline', // Inspection labels, like 'array' in `array: [1, 2, 3]`
        other:   'inverted',  // Objects which don't have a literal representation, such as functions
        key:     'bold',      // The keys in object literals, like 'a' in `{a: 1}`
        special: 'grey',      // null, undefined...
        string:  'green',
        number:  'magenta',
        bool:    'blue',      // true false
        regexp:  'green',     // /\d+/
    },
    pretty: true,             // Indent object literals
    hideFunctions: false,
    showHidden: false,
    stream: process.stdout,
    maxLength: 2048           // Truncate output if longer
};

// Return a curried inspect() function, with the `options` argument filled in.
eyes.inspector = function (options) {
    var that = this;
    return function (obj, label, opts) {
        return that.inspect.call(that, obj, label,
            merge(options || {}, opts || {}));
    };
};

// If we have a `stream` defined, use it to print a styled string,
// if not, we just return the stringified object.
eyes.inspect = function (obj, label, options) {
    options = merge(this.defaults, options || {});

    if (options.stream) {
        return this.print(stringify(obj, options), label, options);
    } else {
        return stringify(obj, options) + (options.styles ? '\033[39m' : '');
    }
};

// Output using the 'stream', and an optional label
// Loop through `str`, and truncate it after `options.maxLength` has been reached.
// Because escape sequences are, at this point embeded within
// the output string, we can't measure the length of the string
// in a useful way, without separating what is an escape sequence,
// versus a printable character (`c`). So we resort to counting the
// length manually.
eyes.print = function (str, label, options) {
    for (var c = 0, i = 0; i < str.length; i++) {
        if (str.charAt(i) === '\033') { i += 4 } // `4` because '\033[25m'.length + 1 == 5
        else if (c === options.maxLength) {
           str = str.slice(0, i - 1) + '…';
           break;
        } else { c++ }
    }
    return options.stream.write.call(options.stream, (label ?
        this.stylize(label, options.styles.label, options.styles) + ': ' : '') +
        this.stylize(str,   options.styles.all, options.styles) + '\033[0m' + "\n");
};

// Apply a style to a string, eventually,
// I'd like this to support passing multiple
// styles.
eyes.stylize = function (str, style, styles) {
    var codes = {
        'bold'      : [1,  22],
        'underline' : [4,  24],
        'inverse'   : [7,  27],
        'cyan'      : [36, 39],
        'magenta'   : [35, 39],
        'blue'      : [34, 39],
        'yellow'    : [33, 39],
        'green'     : [32, 39],
        'red'       : [31, 39],
        'grey'      : [90, 39]
    }, endCode;

    if (style && codes[style]) {
        endCode = (codes[style][1] === 39 && styles.all) ? codes[styles.all][0]
                                                         : codes[style][1];
        return '\033[' + codes[style][0] + 'm' + str +
               '\033[' + endCode + 'm';
    } else { return str }
};

// Convert any object to a string, ready for output.
// When an 'array' or an 'object' are encountered, they are
// passed to specialized functions, which can then recursively call
// stringify().
function stringify(obj, options) {
    var that = this, stylize = function (str, style) {
        return eyes.stylize(str, options.styles[style], options.styles)
    }, index, result;

    if ((index = stack.indexOf(obj)) !== -1) {
        return stylize(new(Array)(stack.length - index + 1).join('.'), 'special');
    }
    stack.push(obj);

    result = (function (obj) {
        switch (typeOf(obj)) {
            case "string"   : obj = stringifyString(obj.indexOf("'") === -1 ? "'" + obj + "'"
                                                                            : '"' + obj + '"');
                              return stylize(obj, 'string');
            case "regexp"   : return stylize('/' + obj.source + '/', 'regexp');
            case "number"   : return stylize(obj + '',    'number');
            case "function" : return options.stream ? stylize("Function", 'other') : '[Function]';
            case "null"     : return stylize("null",      'special');
            case "undefined": return stylize("undefined", 'special');
            case "boolean"  : return stylize(obj + '',    'bool');
            case "date"     : return stylize(obj.toUTCString());
            case "array"    : return stringifyArray(obj,  options, stack.length);
            case "object"   : return stringifyObject(obj, options, stack.length);
        }
    })(obj);

    stack.pop();
    return result;
};

// Escape invisible characters in a string
function stringifyString (str, options) {
    return str.replace(/\\/g, '\\\\')
              .replace(/\n/g, '\\n')
              .replace(/[\u0001-\u001F]/g, function (match) {
                  return '\\0' + match[0].charCodeAt(0).toString(8);
              });
}

// Convert an array to a string, such as [1, 2, 3].
// This function calls stringify() for each of the elements
// in the array.
function stringifyArray(ary, options, level) {
    var out = [];
    var pretty = options.pretty && (ary.length > 4 || ary.some(function (o) {
        return (o !== null && typeof(o) === 'object' && Object.keys(o).length > 0) ||
               (Array.isArray(o) && o.length > 0);
    }));
    var ws = pretty ? '\n' + new(Array)(level * 4 + 1).join(' ') : ' ';

    for (var i = 0; i < ary.length; i++) {
        out.push(stringify(ary[i], options));
    }

    if (out.length === 0) {
        return '[]';
    } else {
        return '[' + ws
                   + out.join(',' + (pretty ? ws : ' '))
                   + (pretty ? ws.slice(0, -4) : ws) +
               ']';
    }
};

// Convert an object to a string, such as {a: 1}.
// This function calls stringify() for each of its values,
// and does not output functions or prototype values.
function stringifyObject(obj, options, level) {
    var out = [];
    var pretty = options.pretty && (Object.keys(obj).length > 2 ||
                                    Object.keys(obj).some(function (k) { return typeof(obj[k]) === 'object' }));
    var ws = pretty ? '\n' + new(Array)(level * 4 + 1).join(' ') : ' ';

    var keys = options.showHidden ? Object.keys(obj) : Object.getOwnPropertyNames(obj);
    keys.forEach(function (k) {
        if (Object.prototype.hasOwnProperty.call(obj, k) 
          && !(obj[k] instanceof Function && options.hideFunctions)) {
            out.push(eyes.stylize(k, options.styles.key, options.styles) + ': ' +
                     stringify(obj[k], options));
        }
    });

    if (out.length === 0) {
        return '{}';
    } else {
        return "{" + ws
                   + out.join(',' + (pretty ? ws : ' '))
                   + (pretty ? ws.slice(0, -4) : ws) +
               "}";
   }
};

// A better `typeof`
function typeOf(value) {
    var s = typeof(value),
        types = [Object, Array, String, RegExp, Number, Function, Boolean, Date];

    if (s === 'object' || s === 'function') {
        if (value) {
            types.forEach(function (t) {
                if (value instanceof t) { s = t.name.toLowerCase() }
            });
        } else { s = 'null' }
    }
    return s;
}

function merge(/* variable args */) {
    var objs = Array.prototype.slice.call(arguments);
    var target = {};

    objs.forEach(function (o) {
        Object.keys(o).forEach(function (k) {
            if (k === 'styles') {
                if (! o.styles) {
                    target.styles = false;
                } else {
                    target.styles = {}
                    for (var s in o.styles) {
                        target.styles[s] = o.styles[s];
                    }
                }
            } else {
                target[k] = o[k];
            }
        });
    });
    return target;
}


}).call(this,require('_process'))
},{"_process":215}],492:[function(require,module,exports){
/*
 * winston.js: Top-level include defining Winston.
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var winston = exports;

//
// Expose version using `pkginfo`
//
require('pkginfo')(module, 'version');

//
// Include transports defined by default by winston
//
winston.transports = require('./winston/transports');

//
// Expose utility methods
//
var common             = require('./winston/common');
winston.hash           = common.hash;
winston.clone          = common.clone;
winston.longestElement = common.longestElement;
winston.exception      = require('./winston/exception');
winston.config         = require('./winston/config');
winston.addColors      = winston.config.addColors;

//
// Expose core Logging-related prototypes.
//
winston.Container      = require('./winston/container').Container;
winston.Logger         = require('./winston/logger').Logger;
winston.Transport      = require('./winston/transports/transport').Transport;

//
// We create and expose a default `Container` to `winston.loggers` so that the
// programmer may manage multiple `winston.Logger` instances without any additional overhead.
//
// ### some-file1.js
//
//     var logger = require('winston').loggers.get('something');
//
// ### some-file2.js
//
//     var logger = require('winston').loggers.get('something');
//
winston.loggers = new winston.Container();

//
// We create and expose a 'defaultLogger' so that the programmer may do the
// following without the need to create an instance of winston.Logger directly:
//
//     var winston = require('winston');
//     winston.log('info', 'some message');
//     winston.error('some error');
//
var defaultLogger = new winston.Logger({
  transports: [new winston.transports.Console()]
});

//
// Pass through the target methods onto `winston.
//
var methods = [
  'log',
  'query',
  'stream',
  'add',
  'remove',
  'clear',
  'profile',
  'startTimer',
  'extend',
  'cli',
  'handleExceptions',
  'unhandleExceptions',
  'addRewriter'
];
common.setLevels(winston, null, defaultLogger.levels);
methods.forEach(function (method) {
  winston[method] = function () {
    return defaultLogger[method].apply(defaultLogger, arguments);
  };
});

//
// ### function cli ()
// Configures the default winston logger to have the
// settings for command-line interfaces: no timestamp,
// colors enabled, padded output, and additional levels.
//
winston.cli = function () {
  winston.padLevels = true;
  common.setLevels(winston, defaultLogger.levels, winston.config.cli.levels);
  defaultLogger.setLevels(winston.config.cli.levels);
  winston.config.addColors(winston.config.cli.colors);

  if (defaultLogger.transports.console) {
    defaultLogger.transports.console.colorize = true;
    defaultLogger.transports.console.timestamp = false;
  }

  return winston;
};

//
// ### function setLevels (target)
// #### @target {Object} Target levels to use
// Sets the `target` levels specified on the default winston logger.
//
winston.setLevels = function (target) {
  common.setLevels(winston, defaultLogger.levels, target);
  defaultLogger.setLevels(target);
};

//
// Define getter / setter for the default logger level
// which need to be exposed by winston.
//
Object.defineProperty(winston, 'level', {
  get: function () {
    return defaultLogger.level;
  },
  set: function (val) {
    defaultLogger.level = val;

    Object.keys(defaultLogger.transports).forEach(function(key) {
      defaultLogger.transports[key].level = val;
    });
  }
});

//
// Define getters / setters for appropriate properties of the
// default logger which need to be exposed by winston.
//
['emitErrs', 'exitOnError', 'padLevels', 'levelLength', 'stripColors'].forEach(function (prop) {
  Object.defineProperty(winston, prop, {
    get: function () {
      return defaultLogger[prop];
    },
    set: function (val) {
      defaultLogger[prop] = val;
    }
  });
});

//
// @default {Object}
// The default transports and exceptionHandlers for
// the default winston logger.
//
Object.defineProperty(winston, 'default', {
  get: function () {
    return {
      transports: defaultLogger.transports,
      exceptionHandlers: defaultLogger.exceptionHandlers
    };
  }
});

},{"./winston/common":493,"./winston/config":494,"./winston/container":498,"./winston/exception":499,"./winston/logger":500,"./winston/transports":501,"./winston/transports/transport":502,"pkginfo":506}],493:[function(require,module,exports){
(function (Buffer){
/*
 * common.js: Internal helper and utility functions for winston
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var util = require('util'),
    crypto = require('crypto'),
    cycle = require('cycle'),
    fs = require('fs'),
    config = require('./config');

//
// ### function setLevels (target, past, current)
// #### @target {Object} Object on which to set levels.
// #### @past {Object} Previous levels set on target.
// #### @current {Object} Current levels to set on target.
// Create functions on the target objects for each level
// in current.levels. If past is defined, remove functions
// for each of those levels.
//
exports.setLevels = function (target, past, current, isDefault) {
  if (past) {
    Object.keys(past).forEach(function (level) {
      delete target[level];
    });
  }

  target.levels = current || config.npm.levels;
  if (target.padLevels) {
    target.levelLength = exports.longestElement(Object.keys(target.levels));
  }

  //
  //  Define prototype methods for each log level
  //  e.g. target.log('info', msg) <=> target.info(msg)
  //
  Object.keys(target.levels).forEach(function (level) {
    target[level] = function (msg) {
      // build argument list (level, msg, ... [string interpolate], [{metadata}], [callback])
      var args = [level].concat(Array.prototype.slice.call(arguments));
      target.log.apply(target, args);
    };
  });

  return target;
};

//
// ### function longestElement
// #### @xs {Array} Array to calculate against
// Returns the longest element in the `xs` array.
//
exports.longestElement = function (xs) {
  return Math.max.apply(
    null,
    xs.map(function (x) { return x.length; })
  );
};

//
// ### function clone (obj)
// #### @obj {Object} Object to clone.
// Helper method for deep cloning pure JSON objects
// i.e. JSON objects that are either literals or objects (no Arrays, etc)
//
exports.clone = function (obj) {
  // we only need to clone refrence types (Object)
  if (!(obj instanceof Object)) {
    return obj;
  }
  else if (obj instanceof Date) {
    return obj;
  }

  var copy = {};
  for (var i in obj) {
    if (Array.isArray(obj[i])) {
      copy[i] = obj[i].slice(0);
    }
    else if (obj[i] instanceof Buffer) {
        copy[i] = obj[i].slice(0);
    }
    else if (typeof obj[i] != 'function') {
      copy[i] = obj[i] instanceof Object ? exports.clone(obj[i]) : obj[i];
    }
    else if (typeof obj[i] === 'function') {
      copy[i] = obj[i];
    }
  }

  return copy;
};

//
// ### function log (options)
// #### @options {Object} All information about the log serialization.
// Generic logging function for returning timestamped strings
// with the following options:
//
//    {
//      level:     'level to add to serialized message',
//      message:   'message to serialize',
//      meta:      'additional logging metadata to serialize',
//      colorize:  false, // Colorizes output (only if `.json` is false)
//      timestamp: true   // Adds a timestamp to the serialized message
//      label:     'label to prepend the message'
//    }
//
exports.log = function (options) {
  var timestampFn = typeof options.timestamp === 'function'
                  ? options.timestamp
                  : exports.timestamp,
      timestamp   = options.timestamp ? timestampFn() : null,
      meta        = options.meta !== undefined || options.meta !== null ? exports.clone(cycle.decycle(options.meta)) : null,
      output;

  //
  // raw mode is intended for outputing winston as streaming JSON to STDOUT
  //
  if (options.raw) {
    if (typeof meta !== 'object' && meta != null) {
      meta = { meta: meta };
    }
    output         = exports.clone(meta) || {};
    output.level   = options.level;
    output.message = options.message.stripColors;
    return JSON.stringify(output);
  }

  //
  // json mode is intended for pretty printing multi-line json to the terminal
  //
  if (options.json || true === options.logstash) {
    if (typeof meta !== 'object' && meta != null) {
      meta = { meta: meta };
    }

    output         = exports.clone(meta) || {};
    output.level   = options.level;
    output.message = options.message;
    if (options.label) {
      output.label = options.label;
    }
    if (timestamp) {
      output.timestamp = timestamp;
    }
    
    if (options.logstash === true) {
      // use logstash format
      var logstashOutput = {};
      if (output.message !== undefined) {
        logstashOutput['@message'] = output.message;
        delete output.message;
      }

      if (output.timestamp !== undefined) {
        logstashOutput['@timestamp'] = output.timestamp;
        delete output.timestamp;
      }

      logstashOutput['@fields'] = exports.clone(output);
      output = logstashOutput;
    }

    if (typeof options.stringify === 'function') {
      return options.stringify(output);
    }

    return JSON.stringify(output, function (key, value) {
      return value instanceof Buffer
        ? value.toString('base64')
        : value;
    });
  }

  output = timestamp ? timestamp + ' - ' : '';
  output += options.colorize ? config.colorize(options.level) : options.level;
  output += ': ';
  output += options.label ? ('[' + options.label + '] ') : '';
  output += options.message;

  if (meta !== null && meta !== undefined) {
    if (meta && meta instanceof Error && meta.stack) {
      meta = meta.stack;
    }

    if (typeof meta !== 'object') {
      output += ' ' + meta;
    }
    else if (Object.keys(meta).length > 0) {
      output += ' ' + (
        options.prettyPrint
          ? ('\n' + util.inspect(meta, false, null, options.colorize))
          : exports.serialize(meta)
      );
    }
  }

  return output;
};

exports.capitalize = function (str) {
  return str && str[0].toUpperCase() + str.slice(1);
};

//
// ### function hash (str)
// #### @str {string} String to hash.
// Utility function for creating unique ids
// e.g. Profiling incoming HTTP requests on the same tick
//
exports.hash = function (str) {
  return crypto.createHash('sha1').update(str).digest('hex');
};

//
// ### function pad (n)
// Returns a padded string if `n < 10`.
//
exports.pad = function (n) {
  return n < 10 ? '0' + n.toString(10) : n.toString(10);
};

//
// ### function timestamp ()
// Returns a timestamp string for the current time.
//
exports.timestamp = function () {
  return new Date().toISOString();
};

//
// ### function serialize (obj, key)
// #### @obj {Object|literal} Object to serialize
// #### @key {string} **Optional** Optional key represented by obj in a larger object
// Performs simple comma-separated, `key=value` serialization for Loggly when
// logging to non-JSON inputs.
//
exports.serialize = function (obj, key) {
  if (obj === null) {
    obj = 'null';
  }
  else if (obj === undefined) {
    obj = 'undefined';
  }
  else if (obj === false) {
    obj = 'false';
  }

  if (typeof obj !== 'object') {
    return key ? key + '=' + obj : obj;
  }

  if (obj instanceof Buffer) {
    return key ? key + '=' + obj.toString('base64') : obj.toString('base64');
  }

  var msg = '',
      keys = Object.keys(obj),
      length = keys.length;

  for (var i = 0; i < length; i++) {
    if (Array.isArray(obj[keys[i]])) {
      msg += keys[i] + '=[';

      for (var j = 0, l = obj[keys[i]].length; j < l; j++) {
        msg += exports.serialize(obj[keys[i]][j]);
        if (j < l - 1) {
          msg += ', ';
        }
      }

      msg += ']';
    }
    else if (obj[keys[i]] instanceof Date) {
      msg += keys[i] + '=' + obj[keys[i]];
    }
    else {
      msg += exports.serialize(obj[keys[i]], keys[i]);
    }

    if (i < length - 1) {
      msg += ', ';
    }
  }

  return msg;
};


//
// ### function tailFile (options, callback)
// #### @options {Object} Options for tail.
// #### @callback {function} Callback to execute on every line.
// `tail -f` a file. Options must include file.
//
exports.tailFile = function tail(options, callback) {
  var stream = fs.createReadStream(options.file, { encoding: 'utf8' }),
      buff = '',
      destroy,
      row = 0;

  destroy = stream.destroy.bind(stream);
  stream.destroy = function () {};

  if (options.start === -1) {
    delete options.start;
  }
  
  stream.on('data', function (data) {
    var data = (buff + data).split(/\n+/),
        l = data.length - 1,
        i = 0;

    for (; i < l; i++) {
      if (options.start == null || row > options.start) {
        callback(null, data[i]);
      }
      row++;
    }

    buff = data[l];
  });

  stream.on('error', function (err) {
    callback(err);
    destroy();
  });

  stream.on('end', function () {
    if (buff) {
      stream.emit('line', buff);
      buff = '';
    }

    resume();
  });

  function resume() {
    setTimeout(function () {
      stream.resume();
    }, 1000);
  }

  return destroy;
};

}).call(this,require("buffer").Buffer)
},{"./config":494,"buffer":18,"crypto":22,"cycle":505,"fs":2,"util":247}],494:[function(require,module,exports){
/*
 * config.js: Default settings for all levels that winston knows about
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var colors = require('colors');

var config = exports,
    allColors = exports.allColors = {};

config.addColors = function (colors) {
  mixin(allColors, colors);
};

config.colorize = function (level) {
  var colorized = level;
  if (allColors[level] instanceof Array) {
    for (var i = 0, l = allColors[level].length; i < l; ++i) {
      colorized = colorized[allColors[level][i]];
    }
  } else if (allColors[level].match(/\s/)) {
    var colorArr = allColors[level].split(/\s+/);
    for (var i = 0; i < colorArr.length; ++i) {
      colorized = colorized[colorArr[i]];
    }
    allColors[level] = colorArr;
  } else {
    colorized = colorized[allColors[level]];
  }
  return colorized;
};

//
// Export config sets
//
config.cli    = require('./config/cli-config');
config.npm    = require('./config/npm-config');
config.syslog = require('./config/syslog-config');

//
// Add colors for pre-defined config sets
//
config.addColors(config.cli.colors);
config.addColors(config.npm.colors);
config.addColors(config.syslog.colors);

function mixin (target) {
  var args = Array.prototype.slice.call(arguments, 1);

  args.forEach(function (a) {
    var keys = Object.keys(a);
    for (var i = 0; i < keys.length; i++) {
      target[keys[i]] = a[keys[i]];
    }
  });
  return target;
};

},{"./config/cli-config":495,"./config/npm-config":496,"./config/syslog-config":497,"colors":504}],495:[function(require,module,exports){
/*
 * cli-config.js: Config that conform to commonly used CLI logging levels.
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var cliConfig = exports;

cliConfig.levels = {
  silly: 0,
  input: 1,
  verbose: 2,
  prompt: 3,
  debug: 4,
  info: 5,
  data: 6,
  help: 7,
  warn: 8,
  error: 9
};

cliConfig.colors = {
  silly: 'magenta',
  input: 'grey',
  verbose: 'cyan',
  prompt: 'grey',
  debug: 'blue',
  info: 'green',
  data: 'grey',
  help: 'cyan',
  warn: 'yellow',
  error: 'red'
};
},{}],496:[function(require,module,exports){
/*
 * npm-config.js: Config that conform to npm logging levels.
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var npmConfig = exports;

npmConfig.levels = {
  silly: 0,
  debug: 1,
  verbose: 2,
  info: 3,
  warn: 4,
  error: 5
};

npmConfig.colors = {
  silly: 'magenta',
  verbose: 'cyan',
  debug: 'blue',
  info: 'green',
  warn: 'yellow',
  error: 'red'
};
},{}],497:[function(require,module,exports){
/*
 * syslog-config.js: Config that conform to syslog logging levels.
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var syslogConfig = exports;

syslogConfig.levels = {
  emerg: 0,
  alert: 1,
  crit: 2,
  error: 3,
  warning: 4,
  notice: 5,
  info: 6,
  debug: 7,
};

syslogConfig.colors = {
  emerg: 'red',
  alert: 'yellow',
  crit: 'red',
  error: 'red',
  warning: 'red',
  notice: 'yellow',
  info: 'green',
  debug: 'blue',
};
},{}],498:[function(require,module,exports){
/*
 * container.js: Inversion of control container for winston logger instances
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var common = require('./common'),
    winston = require('../winston'),
    extend = require('util')._extend;

//
// ### function Container (options)
// #### @options {Object} Default pass-thru options for Loggers
// Constructor function for the Container object responsible for managing
// a set of `winston.Logger` instances based on string ids.
//
var Container = exports.Container = function (options) {
  this.loggers = {};
  this.options = options || {};
  this.default = {
    transports: [
      new winston.transports.Console({
        level: 'silly',
        colorize: false
      })
    ]
  }
};

//
// ### function get / add (id, options)
// #### @id {string} Id of the Logger to get
// #### @options {Object} **Optional** Options for the Logger instance
// Retreives a `winston.Logger` instance for the specified `id`. If
// an instance does not exist, one is created.
//
Container.prototype.get = Container.prototype.add = function (id, options) {
  var existing;
  if (!this.loggers[id]) {
    //
    // Remark: Simple shallow clone for configuration options in case we pass in
    // instantiated protoypal objects
    //
    options = extend({}, options || this.options || this.default);
    existing = options.transports || this.options.transports;
    //
    // Remark: Make sure if we have an array of transports we slice it to make copies
    // of those references.
    //
    options.transports = existing ? existing.slice() : [];

    if (options.transports.length === 0 && (!options || !options['console'])) {
      options.transports.push(this.default.transports[0]);
    }

    Object.keys(options).forEach(function (key) {
      if (key === 'transports') {
        return;
      }

      var name = common.capitalize(key);

      if (!winston.transports[name]) {
        throw new Error('Cannot add unknown transport: ' + name);
      }

      var namedOptions = options[key];
      namedOptions.id = id;
      options.transports.push(new (winston.transports[name])(namedOptions));
    });

    this.loggers[id] = new winston.Logger(options);
  }

  return this.loggers[id];
};

//
// ### function close (id)
// #### @id {string} **Optional** Id of the Logger instance to find
// Returns a boolean value indicating if this instance
// has a logger with the specified `id`.
//
Container.prototype.has = function (id) {
  return !!this.loggers[id];
};

//
// ### function close (id)
// #### @id {string} **Optional** Id of the Logger instance to close
// Closes a `Logger` instance with the specified `id` if it exists.
// If no `id` is supplied then all Loggers are closed.
//
Container.prototype.close = function (id) {
  var self = this;

  function _close (id) {
    if (!self.loggers[id]) {
      return;
    }

    self.loggers[id].close();
    delete self.loggers[id];
  }

  return id ? _close(id) : Object.keys(this.loggers).forEach(function (id) {
    _close(id);
  });
};


},{"../winston":492,"./common":493,"util":247}],499:[function(require,module,exports){
(function (process){
/*
 * exception.js: Utility methods for gathing information about uncaughtExceptions.
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var os = require('os'),
    stackTrace = require('stack-trace');

var exception = exports;

exception.getAllInfo = function (err) {
  return {
    date:    new Date().toString(),
    process: exception.getProcessInfo(),
    os:      exception.getOsInfo(),
    trace:   exception.getTrace(err),
    stack:   err.stack && err.stack.split('\n')
  };
};

exception.getProcessInfo = function () {
  return {
    pid:         process.pid,
    uid:         process.getuid ? process.getuid() : null,
    gid:         process.getgid ? process.getgid() : null,
    cwd:         process.cwd(),
    execPath:    process.execPath,
    version:     process.version,
    argv:        process.argv,
    memoryUsage: process.memoryUsage()
  };
};

exception.getOsInfo = function () {
  return {
    loadavg: os.loadavg(),
    uptime:  os.uptime()
  };
};

exception.getTrace = function (err) {
  var trace = err ? stackTrace.parse(err) : stackTrace.get();
  return trace.map(function (site) {
    return {
      column:   site.getColumnNumber(),
      file:     site.getFileName(),
      function: site.getFunctionName(),
      line:     site.getLineNumber(),
      method:   site.getMethodName(),
      native:   site.isNative(),
    }
  });
};

}).call(this,require('_process'))
},{"_process":215,"os":213,"stack-trace":507}],500:[function(require,module,exports){
(function (process){
/*
 * logger.js: Core logger object used by winston.
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var events = require('events'),
    util = require('util'),
    async = require('async'),
    config = require('./config'),
    common = require('./common'),
    exception = require('./exception'),
    Stream = require('stream').Stream;

//
// ### function Logger (options)
// #### @options {Object} Options for this instance.
// Constructor function for the Logger object responsible
// for persisting log messages and metadata to one or more transports.
//
var Logger = exports.Logger = function (options) {
  events.EventEmitter.call(this);
  options = options || {};

  var self = this,
      handleExceptions = false;

  //
  // Set Levels and default logging level
  //
  this.padLevels = options.padLevels || false;
  this.setLevels(options.levels);
  if (options.colors) {
    config.addColors(options.colors);
  }

  //
  // Hoist other options onto this instance.
  //
  this.level       = options.level || 'info';
  this.emitErrs    = options.emitErrs || false;
  this.stripColors = options.stripColors || false;
  this.exitOnError = typeof options.exitOnError !== 'undefined'
    ? options.exitOnError
    : true;

  //
  // Setup other intelligent default settings.
  //
  this.transports        = {};
  this.rewriters         = [];
  this.exceptionHandlers = {};
  this.profilers         = {};
  this._names            = [];
  this._hnames           = [];

  if (options.transports) {
    options.transports.forEach(function (transport) {
      self.add(transport, null, true);

      if (transport.handleExceptions) {
        handleExceptions = true;
      }
    });
  }

  if (options.rewriters) {
    options.rewriters.forEach(function (rewriter) {
      self.addRewriter(rewriter);
    });
  }

  if (options.exceptionHandlers) {
    handleExceptions = true;
    options.exceptionHandlers.forEach(function (handler) {
      self._hnames.push(handler.name);
      self.exceptionHandlers[handler.name] = handler;
    });
  }

  if (options.handleExceptions || handleExceptions) {
    this.handleExceptions();
  }
};

//
// Inherit from `events.EventEmitter`.
//
util.inherits(Logger, events.EventEmitter);

//
// ### function extend (target)
// #### @target {Object} Target to extend.
// Extends the target object with a 'log' method
// along with a method for each level in this instance.
//
Logger.prototype.extend = function (target) {
  var self = this;
  ['log', 'profile', 'startTimer'].concat(Object.keys(this.levels)).forEach(function (method) {
    target[method] = function () {
      return self[method].apply(self, arguments);
    };
  });

  return this;
};

//
// ### function log (level, msg, [meta], callback)
// #### @level {string} Level at which to log the message.
// #### @msg {string} Message to log
// #### @meta {Object} **Optional** Additional metadata to attach
// #### @callback {function} Continuation to respond to when complete.
// Core logging method exposed to Winston. Metadata is optional.
//
Logger.prototype.log = function (level) {
  var self = this,
      args = Array.prototype.slice.call(arguments, 1);

  while(args[args.length - 1] === null) {
    args.pop();
  }

  var callback = typeof args[args.length - 1] === 'function' ? args.pop() : null,
      meta     = typeof args[args.length - 1] === 'object' ? args.pop() : {},
      msg      = util.format.apply(null, args);

  // If we should pad for levels, do so
  if (this.padLevels) {
    msg = new Array(this.levelLength - level.length + 1).join(' ') + msg;
  }

  function onError (err) {
    if (callback) {
      callback(err);
    }
    else if (self.emitErrs) {
      self.emit('error', err);
    }
  }

  
  if (Object.keys(this.transports).length === 0) {
    return onError(new Error('Cannot log with no transports.'));
  }
  else if (typeof self.levels[level] === 'undefined') {
    return onError(new Error('Unknown log level: ' + level));
  }

  this.rewriters.forEach(function (rewriter) {
    meta = rewriter(level, msg, meta);
  });

  //
  // For consideration of terminal 'color" programs like colors.js,
  // which can add ANSI escape color codes to strings, we destyle the
  // ANSI color escape codes when `this.stripColors` is set.
  //
  // see: http://en.wikipedia.org/wiki/ANSI_escape_code
  //
  if (this.stripColors) {
    var code = /\u001b\[(\d+(;\d+)*)?m/g;
    msg = ('' + msg).replace(code, '');
  }

  //
  // Log for each transport and emit 'logging' event
  //
  function emit(name, next) {
    var transport = self.transports[name];
    if ((transport.level && self.levels[transport.level] <= self.levels[level])
      || (!transport.level && self.levels[self.level] <= self.levels[level])) {
      transport.log(level, msg, meta, function (err) {
        if (err) {
          err.transport = transport;
          cb(err);
          return next();
        }
        self.emit('logging', transport, level, msg, meta);
        next();
      });
    } else {
      next();
    }
  }

  //
  // Respond to the callback
  //
  function cb(err) {
    if (callback) {
      if (err) return callback(err);
      callback(null, level, msg, meta);
    }
    callback = null;
    if (!err) {
      self.emit('logged', level, msg, meta);
    }
  }

  async.forEach(this._names, emit, cb);

  return this;
};

//
// ### function query (options, callback)
// #### @options {Object} Query options for this instance.
// #### @callback {function} Continuation to respond to when complete.
// Queries the all transports for this instance with the specified `options`.
// This will aggregate each transport's results into one object containing
// a property per transport.
//
Logger.prototype.query = function (options, callback) {
  if (typeof options === 'function') {
    callback = options;
    options = {};
  }

  var self = this,
      options = options || {},
      results = {},
      query = common.clone(options.query) || {},
      transports;

  //
  // Helper function to query a single transport
  //
  function queryTransport(transport, next) {
    if (options.query) {
      options.query = transport.formatQuery(query);
    }

    transport.query(options, function (err, results) {
      if (err) {
        return next(err);
      }

      next(null, transport.formatResults(results, options.format));
    });
  }

  //
  // Helper function to accumulate the results from
  // `queryTransport` into the `results`.
  //
  function addResults (transport, next) {
    queryTransport(transport, function (err, result) {
      //
      // queryTransport could potentially invoke the callback
      // multiple times since Transport code can be unpredictable.
      //
      if (next) {
        result = err || result;
        if (result) {
          results[transport.name] = result;
        }

        next();
      }

      next = null;
    });
  }

  //
  // If an explicit transport is being queried then
  // respond with the results from only that transport
  //
  if (options.transport) {
    options.transport = options.transport.toLowerCase();
    return queryTransport(this.transports[options.transport], callback);
  }

  //
  // Create a list of all transports for this instance.
  //
  transports = this._names.map(function (name) {
    return self.transports[name];
  }).filter(function (transport) {
    return !!transport.query;
  });

  //
  // Iterate over the transports in parallel setting the
  // appropriate key in the `results`
  //
  async.forEach(transports, addResults, function () {
    callback(null, results);
  });
};

//
// ### function stream (options)
// #### @options {Object} Stream options for this instance.
// Returns a log stream for all transports. Options object is optional.
//
Logger.prototype.stream = function (options) {
  var self = this,
      options = options || {},
      out = new Stream,
      streams = [],
      transports;

  if (options.transport) {
    var transport = this.transports[options.transport];
    delete options.transport;
    if (transport && transport.stream) {
      return transport.stream(options);
    }
  }

  out._streams = streams;
  out.destroy = function () {
    var i = streams.length;
    while (i--) streams[i].destroy();
  };

  //
  // Create a list of all transports for this instance.
  //
  transports = this._names.map(function (name) {
    return self.transports[name];
  }).filter(function (transport) {
    return !!transport.stream;
  });

  transports.forEach(function (transport) {
    var stream = transport.stream(options);
    if (!stream) return;

    streams.push(stream);

    stream.on('log', function (log) {
      log.transport = log.transport || [];
      log.transport.push(transport.name);
      out.emit('log', log);
    });

    stream.on('error', function (err) {
      err.transport = err.transport || [];
      err.transport.push(transport.name);
      out.emit('error', err);
    });
  });

  return out;
};

//
// ### function close ()
// Cleans up resources (streams, event listeners) for all
// transports associated with this instance (if necessary).
//
Logger.prototype.close = function () {
  var self = this;

  this._names.forEach(function (name) {
    var transport = self.transports[name];
    if (transport && transport.close) {
      transport.close();
    }
  });
};

//
// ### function handleExceptions ()
// Handles `uncaughtException` events for the current process
//
Logger.prototype.handleExceptions = function () {
  var args = Array.prototype.slice.call(arguments),
      handlers = [],
      self = this;

  args.forEach(function (a) {
    if (Array.isArray(a)) {
      handlers = handlers.concat(a);
    }
    else {
      handlers.push(a);
    }
  });

  handlers.forEach(function (handler) {
    self.exceptionHandlers[handler.name] = handler;
  });

  this._hnames = Object.keys(self.exceptionHandlers);

  if (!this.catchExceptions) {
    this.catchExceptions = this._uncaughtException.bind(this);
    process.on('uncaughtException', this.catchExceptions);
  }
};

//
// ### function unhandleExceptions ()
// Removes any handlers to `uncaughtException` events
// for the current process
//
Logger.prototype.unhandleExceptions = function () {
  var self = this;

  if (this.catchExceptions) {
    Object.keys(this.exceptionHandlers).forEach(function (name) {
      var handler = self.exceptionHandlers[name];
      if (handler.close) {
        handler.close();
      }
    });

    this.exceptionHandlers = {};
    Object.keys(this.transports).forEach(function (name) {
      var transport = self.transports[name];
      if (transport.handleExceptions) {
        transport.handleExceptions = false;
      }
    })

    process.removeListener('uncaughtException', this.catchExceptions);
    this.catchExceptions = false;
  }
};

//
// ### function add (transport, [options])
// #### @transport {Transport} Prototype of the Transport object to add.
// #### @options {Object} **Optional** Options for the Transport to add.
// #### @instance {Boolean} **Optional** Value indicating if `transport` is already instantiated.
// Adds a transport of the specified type to this instance.
//
Logger.prototype.add = function (transport, options, created) {
  var instance = created ? transport : (new (transport)(options));

  if (!instance.name && !instance.log) {
    throw new Error('Unknown transport with no log() method');
  }
  else if (this.transports[instance.name]) {
    throw new Error('Transport already attached: ' + instance.name);
  }

  this.transports[instance.name] = instance;
  this._names = Object.keys(this.transports);

  //
  // Listen for the `error` event on the new Transport
  //
  instance._onError = this._onError.bind(this, instance)
  instance.on('error', instance._onError);

  //
  // If this transport has `handleExceptions` set to `true`
  // and we are not already handling exceptions, do so.
  //
  if (instance.handleExceptions && !this.catchExceptions) {
    this.handleExceptions();
  }

  return this;
};

//
// ### function addRewriter (transport, [options])
// #### @transport {Transport} Prototype of the Transport object to add.
// #### @options {Object} **Optional** Options for the Transport to add.
// #### @instance {Boolean} **Optional** Value indicating if `transport` is already instantiated.
// Adds a transport of the specified type to this instance.
//
Logger.prototype.addRewriter = function (rewriter) {
  this.rewriters.push(rewriter);
}

//
// ### function clear ()
// Remove all transports from this instance
//
Logger.prototype.clear = function () {
  for (var name in this.transports) {
    this.remove({ name: name });
  }
};

//
// ### function remove (transport)
// #### @transport {Transport} Transport to remove.
// Removes a transport of the specified type from this instance.
//
Logger.prototype.remove = function (transport) {
  var name = transport.name || transport.prototype.name;

  if (!this.transports[name]) {
    throw new Error('Transport ' + name + ' not attached to this instance');
  }

  var instance = this.transports[name];
  delete this.transports[name];
  this._names = Object.keys(this.transports);

  if (instance.close) {
    instance.close();
  }

  instance.removeListener('error', instance._onError);
  return this;
};

var ProfileHandler = function (logger) {
  this.logger = logger;

  this.start = Date.now();

  this.done = function (msg) {
    var args, callback, meta;
    args     = Array.prototype.slice.call(arguments);
    callback = typeof args[args.length - 1] === 'function' ? args.pop() : null;
    meta     = typeof args[args.length - 1] === 'object' ? args.pop() : {};

    meta.duration = (Date.now()) - this.start + 'ms';

    return this.logger.info(msg, meta, callback);
  }
}

Logger.prototype.startTimer = function () {
  return new ProfileHandler(this);
}

//
// ### function profile (id, [msg, meta, callback])
// #### @id {string} Unique id of the profiler
// #### @msg {string} **Optional** Message to log
// #### @meta {Object} **Optional** Additional metadata to attach
// #### @callback {function} **Optional** Continuation to respond to when complete.
// Tracks the time inbetween subsequent calls to this method
// with the same `id` parameter. The second call to this method
// will log the difference in milliseconds along with the message.
//
Logger.prototype.profile = function (id) {
  var now = Date.now(), then, args,
      msg, meta, callback;

  if (this.profilers[id]) {
    then = this.profilers[id];
    delete this.profilers[id];

    // Support variable arguments: msg, meta, callback
    args     = Array.prototype.slice.call(arguments);
    callback = typeof args[args.length - 1] === 'function' ? args.pop() : null;
    meta     = typeof args[args.length - 1] === 'object' ? args.pop() : {};
    msg      = args.length === 2 ? args[1] : id;

    // Set the duration property of the metadata
    meta.duration = now - then + 'ms';
    return this.info(msg, meta, callback);
  }
  else {
    this.profilers[id] = now;
  }

  return this;
};

//
// ### function setLevels (target)
// #### @target {Object} Target levels to use on this instance
// Sets the `target` levels specified on this instance.
//
Logger.prototype.setLevels = function (target) {
  return common.setLevels(this, this.levels, target);
};

//
// ### function cli ()
// Configures this instance to have the default
// settings for command-line interfaces: no timestamp,
// colors enabled, padded output, and additional levels.
//
Logger.prototype.cli = function () {
  this.padLevels = true;
  this.setLevels(config.cli.levels);
  config.addColors(config.cli.colors);

  if (this.transports.console) {
    this.transports.console.colorize = true;
    this.transports.console.timestamp = false;
  }

  return this;
};

//
// ### @private function _uncaughtException (err)
// #### @err {Error} Error to handle
// Logs all relevant information around the `err` and
// exits the current process.
//
Logger.prototype._uncaughtException = function (err) {
  var self = this,
      responded = false,
      info = exception.getAllInfo(err),
      handlers = this._getExceptionHandlers(),
      timeout,
      doExit;

  //
  // Calculate if we should exit on this error
  //
  doExit = typeof this.exitOnError === 'function'
    ? this.exitOnError(err)
    : this.exitOnError;

  function logAndWait(transport, next) {
    transport.logException('uncaughtException: ' + (err.message || err), info, next, err);
  }

  function gracefulExit() {
    if (doExit && !responded) {
      //
      // Remark: Currently ignoring any exceptions from transports
      //         when catching uncaught exceptions.
      //
      clearTimeout(timeout);
      responded = true;
      process.exit(1);
    }
  }

  if (!handlers || handlers.length === 0) {
    return gracefulExit();
  }

  //
  // Log to all transports and allow the operation to take
  // only up to `3000ms`.
  //
  async.forEach(handlers, logAndWait, gracefulExit);
  if (doExit) {
    timeout = setTimeout(gracefulExit, 3000);
  }
};

//
// ### @private function _getExceptionHandlers ()
// Returns the list of transports and exceptionHandlers
// for this instance.
//
Logger.prototype._getExceptionHandlers = function () {
  var self = this;

  return this._hnames.map(function (name) {
    return self.exceptionHandlers[name];
  }).concat(this._names.map(function (name) {
    return self.transports[name].handleExceptions && self.transports[name];
  })).filter(Boolean);
};

//
// ### @private function _onError (transport, err)
// #### @transport {Object} Transport on which the error occured
// #### @err {Error} Error that occurred on the transport
// Bubbles the error, `err`, that occured on the specified `transport`
// up from this instance if `emitErrs` has been set.
//
Logger.prototype._onError = function (transport, err) {
  if (this.emitErrs) {
    this.emit('error', err, transport);
  }
};

}).call(this,require('_process'))
},{"./common":493,"./config":494,"./exception":499,"_process":215,"async":503,"events":208,"stream":233,"util":247}],501:[function(require,module,exports){
(function (__dirname){
/*
 * transports.js: Set of all transports Winston knows about
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var fs = require('fs'),
    path = require('path'),
    common = require('./common');

var transports = exports;

//
// Setup all transports as lazy-loaded getters.
//
fs.readdirSync(path.join(__dirname, 'transports')).forEach(function (file) {
  var transport = file.replace('.js', ''),
      name  = common.capitalize(transport);

  if (transport === 'transport') {
    return;
  }
  else if (~transport.indexOf('-')) {
    name = transport.split('-').map(function (part) {
      return common.capitalize(part);
    }).join('');
  }

  transports.__defineGetter__(name, function () {
    return require('./transports/' + transport)[name];
  });
});
}).call(this,"/node_modules/pushrocks/node_modules/smartcli/node_modules/cliff/node_modules/winston/lib/winston")
},{"./common":493,"fs":2,"path":214}],502:[function(require,module,exports){
/*
 * transport.js: Base Transport object for all Winston transports.
 *
 * (C) 2010 Charlie Robbins
 * MIT LICENCE
 *
 */

var events = require('events'),
    util = require('util');

//
// ### function Transport (options)
// #### @options {Object} Options for this instance.
// Constructor function for the Tranport object responsible
// base functionality for all winston transports.
//
var Transport = exports.Transport = function (options) {
  events.EventEmitter.call(this);

  options               = options        || {};
  this.level            = options.level === undefined ? 'info' : options.level;
  this.silent           = options.silent || false;
  this.raw              = options.raw    || false;
  this.name             = options.name   || this.name;

  this.handleExceptions = options.handleExceptions || false;
};

//
// Inherit from `events.EventEmitter`.
//
util.inherits(Transport, events.EventEmitter);

//
// ### function formatQuery (query)
// #### @query {string|Object} Query to format
// Formats the specified `query` Object (or string) to conform
// with the underlying implementation of this transport.
//
Transport.prototype.formatQuery = function (query) {
  return query;
};

//
// ### function normalizeQuery (query)
// #### @options {string|Object} Query to normalize
// Normalize options for query
//
Transport.prototype.normalizeQuery = function (options) {
  //
  // Use options similar to loggly.
  // [See Loggly Search API](http://wiki.loggly.com/retrieve_events#optional)
  //

  options = options || {};

  // limit
  options.rows = options.rows || options.limit || 10;

  // starting row offset
  options.start = options.start || 0;

  // now - 24
  options.from = options.from || new Date - (24 * 60 * 60 * 1000);
  if (typeof options.from !== 'object') {
    options.from = new Date(options.from);
  }

  // now
  options.until = options.until || new Date;
  if (typeof options.until !== 'object') {
    options.until = new Date(options.until);
  }

  // 'asc' or 'desc'
  options.order = options.order || 'desc';

  // which fields to select
  options.fields = options.fields;

  return options;
};

//
// ### function formatResults (results, options)
// #### @results {Object|Array} Results returned from `.query`.
// #### @options {Object} **Optional** Formatting options
// Formats the specified `results` with the given `options` accordinging
// to the implementation of this transport.
//
Transport.prototype.formatResults = function (results, options) {
  return results;
};

//
// ### function logException (msg, meta, callback)
// #### @msg {string} Message to log
// #### @meta {Object} **Optional** Additional metadata to attach
// #### @callback {function} Continuation to respond to when complete.
// Logs the specified `msg`, `meta` and responds to the callback once the log
// operation is complete to ensure that the event loop will not exit before
// all logging has completed.
//
Transport.prototype.logException = function (msg, meta, callback) {
  var self = this;

  function onLogged () {
    self.removeListener('error', onError);
    callback();
  }

  function onError () {
    self.removeListener('logged', onLogged);
    callback();
  }

  this.once('logged', onLogged);
  this.once('error', onError);
  this.log('error', msg, meta, function () { });
};

},{"events":208,"util":247}],503:[function(require,module,exports){
(function (process){
/*global setImmediate: false, setTimeout: false, console: false */
(function () {

    var async = {};

    // global on the server, window in the browser
    var root, previous_async;

    root = this;
    if (root != null) {
      previous_async = root.async;
    }

    async.noConflict = function () {
        root.async = previous_async;
        return async;
    };

    function only_once(fn) {
        var called = false;
        return function() {
            if (called) throw new Error("Callback was already called.");
            called = true;
            fn.apply(root, arguments);
        }
    }

    //// cross-browser compatiblity functions ////

    var _each = function (arr, iterator) {
        if (arr.forEach) {
            return arr.forEach(iterator);
        }
        for (var i = 0; i < arr.length; i += 1) {
            iterator(arr[i], i, arr);
        }
    };

    var _map = function (arr, iterator) {
        if (arr.map) {
            return arr.map(iterator);
        }
        var results = [];
        _each(arr, function (x, i, a) {
            results.push(iterator(x, i, a));
        });
        return results;
    };

    var _reduce = function (arr, iterator, memo) {
        if (arr.reduce) {
            return arr.reduce(iterator, memo);
        }
        _each(arr, function (x, i, a) {
            memo = iterator(memo, x, i, a);
        });
        return memo;
    };

    var _keys = function (obj) {
        if (Object.keys) {
            return Object.keys(obj);
        }
        var keys = [];
        for (var k in obj) {
            if (obj.hasOwnProperty(k)) {
                keys.push(k);
            }
        }
        return keys;
    };

    //// exported async module functions ////

    //// nextTick implementation with browser-compatible fallback ////
    if (typeof process === 'undefined' || !(process.nextTick)) {
        if (typeof setImmediate === 'function') {
            async.nextTick = function (fn) {
                // not a direct alias for IE10 compatibility
                setImmediate(fn);
            };
            async.setImmediate = async.nextTick;
        }
        else {
            async.nextTick = function (fn) {
                setTimeout(fn, 0);
            };
            async.setImmediate = async.nextTick;
        }
    }
    else {
        async.nextTick = process.nextTick;
        if (typeof setImmediate !== 'undefined') {
            async.setImmediate = function (fn) {
              // not a direct alias for IE10 compatibility
              setImmediate(fn);
            };
        }
        else {
            async.setImmediate = async.nextTick;
        }
    }

    async.each = function (arr, iterator, callback) {
        callback = callback || function () {};
        if (!arr.length) {
            return callback();
        }
        var completed = 0;
        _each(arr, function (x) {
            iterator(x, only_once(function (err) {
                if (err) {
                    callback(err);
                    callback = function () {};
                }
                else {
                    completed += 1;
                    if (completed >= arr.length) {
                        callback(null);
                    }
                }
            }));
        });
    };
    async.forEach = async.each;

    async.eachSeries = function (arr, iterator, callback) {
        callback = callback || function () {};
        if (!arr.length) {
            return callback();
        }
        var completed = 0;
        var iterate = function () {
            iterator(arr[completed], function (err) {
                if (err) {
                    callback(err);
                    callback = function () {};
                }
                else {
                    completed += 1;
                    if (completed >= arr.length) {
                        callback(null);
                    }
                    else {
                        iterate();
                    }
                }
            });
        };
        iterate();
    };
    async.forEachSeries = async.eachSeries;

    async.eachLimit = function (arr, limit, iterator, callback) {
        var fn = _eachLimit(limit);
        fn.apply(null, [arr, iterator, callback]);
    };
    async.forEachLimit = async.eachLimit;

    var _eachLimit = function (limit) {

        return function (arr, iterator, callback) {
            callback = callback || function () {};
            if (!arr.length || limit <= 0) {
                return callback();
            }
            var completed = 0;
            var started = 0;
            var running = 0;

            (function replenish () {
                if (completed >= arr.length) {
                    return callback();
                }

                while (running < limit && started < arr.length) {
                    started += 1;
                    running += 1;
                    iterator(arr[started - 1], function (err) {
                        if (err) {
                            callback(err);
                            callback = function () {};
                        }
                        else {
                            completed += 1;
                            running -= 1;
                            if (completed >= arr.length) {
                                callback();
                            }
                            else {
                                replenish();
                            }
                        }
                    });
                }
            })();
        };
    };


    var doParallel = function (fn) {
        return function () {
            var args = Array.prototype.slice.call(arguments);
            return fn.apply(null, [async.each].concat(args));
        };
    };
    var doParallelLimit = function(limit, fn) {
        return function () {
            var args = Array.prototype.slice.call(arguments);
            return fn.apply(null, [_eachLimit(limit)].concat(args));
        };
    };
    var doSeries = function (fn) {
        return function () {
            var args = Array.prototype.slice.call(arguments);
            return fn.apply(null, [async.eachSeries].concat(args));
        };
    };


    var _asyncMap = function (eachfn, arr, iterator, callback) {
        var results = [];
        arr = _map(arr, function (x, i) {
            return {index: i, value: x};
        });
        eachfn(arr, function (x, callback) {
            iterator(x.value, function (err, v) {
                results[x.index] = v;
                callback(err);
            });
        }, function (err) {
            callback(err, results);
        });
    };
    async.map = doParallel(_asyncMap);
    async.mapSeries = doSeries(_asyncMap);
    async.mapLimit = function (arr, limit, iterator, callback) {
        return _mapLimit(limit)(arr, iterator, callback);
    };

    var _mapLimit = function(limit) {
        return doParallelLimit(limit, _asyncMap);
    };

    // reduce only has a series version, as doing reduce in parallel won't
    // work in many situations.
    async.reduce = function (arr, memo, iterator, callback) {
        async.eachSeries(arr, function (x, callback) {
            iterator(memo, x, function (err, v) {
                memo = v;
                callback(err);
            });
        }, function (err) {
            callback(err, memo);
        });
    };
    // inject alias
    async.inject = async.reduce;
    // foldl alias
    async.foldl = async.reduce;

    async.reduceRight = function (arr, memo, iterator, callback) {
        var reversed = _map(arr, function (x) {
            return x;
        }).reverse();
        async.reduce(reversed, memo, iterator, callback);
    };
    // foldr alias
    async.foldr = async.reduceRight;

    var _filter = function (eachfn, arr, iterator, callback) {
        var results = [];
        arr = _map(arr, function (x, i) {
            return {index: i, value: x};
        });
        eachfn(arr, function (x, callback) {
            iterator(x.value, function (v) {
                if (v) {
                    results.push(x);
                }
                callback();
            });
        }, function (err) {
            callback(_map(results.sort(function (a, b) {
                return a.index - b.index;
            }), function (x) {
                return x.value;
            }));
        });
    };
    async.filter = doParallel(_filter);
    async.filterSeries = doSeries(_filter);
    // select alias
    async.select = async.filter;
    async.selectSeries = async.filterSeries;

    var _reject = function (eachfn, arr, iterator, callback) {
        var results = [];
        arr = _map(arr, function (x, i) {
            return {index: i, value: x};
        });
        eachfn(arr, function (x, callback) {
            iterator(x.value, function (v) {
                if (!v) {
                    results.push(x);
                }
                callback();
            });
        }, function (err) {
            callback(_map(results.sort(function (a, b) {
                return a.index - b.index;
            }), function (x) {
                return x.value;
            }));
        });
    };
    async.reject = doParallel(_reject);
    async.rejectSeries = doSeries(_reject);

    var _detect = function (eachfn, arr, iterator, main_callback) {
        eachfn(arr, function (x, callback) {
            iterator(x, function (result) {
                if (result) {
                    main_callback(x);
                    main_callback = function () {};
                }
                else {
                    callback();
                }
            });
        }, function (err) {
            main_callback();
        });
    };
    async.detect = doParallel(_detect);
    async.detectSeries = doSeries(_detect);

    async.some = function (arr, iterator, main_callback) {
        async.each(arr, function (x, callback) {
            iterator(x, function (v) {
                if (v) {
                    main_callback(true);
                    main_callback = function () {};
                }
                callback();
            });
        }, function (err) {
            main_callback(false);
        });
    };
    // any alias
    async.any = async.some;

    async.every = function (arr, iterator, main_callback) {
        async.each(arr, function (x, callback) {
            iterator(x, function (v) {
                if (!v) {
                    main_callback(false);
                    main_callback = function () {};
                }
                callback();
            });
        }, function (err) {
            main_callback(true);
        });
    };
    // all alias
    async.all = async.every;

    async.sortBy = function (arr, iterator, callback) {
        async.map(arr, function (x, callback) {
            iterator(x, function (err, criteria) {
                if (err) {
                    callback(err);
                }
                else {
                    callback(null, {value: x, criteria: criteria});
                }
            });
        }, function (err, results) {
            if (err) {
                return callback(err);
            }
            else {
                var fn = function (left, right) {
                    var a = left.criteria, b = right.criteria;
                    return a < b ? -1 : a > b ? 1 : 0;
                };
                callback(null, _map(results.sort(fn), function (x) {
                    return x.value;
                }));
            }
        });
    };

    async.auto = function (tasks, callback) {
        callback = callback || function () {};
        var keys = _keys(tasks);
        if (!keys.length) {
            return callback(null);
        }

        var results = {};

        var listeners = [];
        var addListener = function (fn) {
            listeners.unshift(fn);
        };
        var removeListener = function (fn) {
            for (var i = 0; i < listeners.length; i += 1) {
                if (listeners[i] === fn) {
                    listeners.splice(i, 1);
                    return;
                }
            }
        };
        var taskComplete = function () {
            _each(listeners.slice(0), function (fn) {
                fn();
            });
        };

        addListener(function () {
            if (_keys(results).length === keys.length) {
                callback(null, results);
                callback = function () {};
            }
        });

        _each(keys, function (k) {
            var task = (tasks[k] instanceof Function) ? [tasks[k]]: tasks[k];
            var taskCallback = function (err) {
                var args = Array.prototype.slice.call(arguments, 1);
                if (args.length <= 1) {
                    args = args[0];
                }
                if (err) {
                    var safeResults = {};
                    _each(_keys(results), function(rkey) {
                        safeResults[rkey] = results[rkey];
                    });
                    safeResults[k] = args;
                    callback(err, safeResults);
                    // stop subsequent errors hitting callback multiple times
                    callback = function () {};
                }
                else {
                    results[k] = args;
                    async.setImmediate(taskComplete);
                }
            };
            var requires = task.slice(0, Math.abs(task.length - 1)) || [];
            var ready = function () {
                return _reduce(requires, function (a, x) {
                    return (a && results.hasOwnProperty(x));
                }, true) && !results.hasOwnProperty(k);
            };
            if (ready()) {
                task[task.length - 1](taskCallback, results);
            }
            else {
                var listener = function () {
                    if (ready()) {
                        removeListener(listener);
                        task[task.length - 1](taskCallback, results);
                    }
                };
                addListener(listener);
            }
        });
    };

    async.waterfall = function (tasks, callback) {
        callback = callback || function () {};
        if (tasks.constructor !== Array) {
          var err = new Error('First argument to waterfall must be an array of functions');
          return callback(err);
        }
        if (!tasks.length) {
            return callback();
        }
        var wrapIterator = function (iterator) {
            return function (err) {
                if (err) {
                    callback.apply(null, arguments);
                    callback = function () {};
                }
                else {
                    var args = Array.prototype.slice.call(arguments, 1);
                    var next = iterator.next();
                    if (next) {
                        args.push(wrapIterator(next));
                    }
                    else {
                        args.push(callback);
                    }
                    async.setImmediate(function () {
                        iterator.apply(null, args);
                    });
                }
            };
        };
        wrapIterator(async.iterator(tasks))();
    };

    var _parallel = function(eachfn, tasks, callback) {
        callback = callback || function () {};
        if (tasks.constructor === Array) {
            eachfn.map(tasks, function (fn, callback) {
                if (fn) {
                    fn(function (err) {
                        var args = Array.prototype.slice.call(arguments, 1);
                        if (args.length <= 1) {
                            args = args[0];
                        }
                        callback.call(null, err, args);
                    });
                }
            }, callback);
        }
        else {
            var results = {};
            eachfn.each(_keys(tasks), function (k, callback) {
                tasks[k](function (err) {
                    var args = Array.prototype.slice.call(arguments, 1);
                    if (args.length <= 1) {
                        args = args[0];
                    }
                    results[k] = args;
                    callback(err);
                });
            }, function (err) {
                callback(err, results);
            });
        }
    };

    async.parallel = function (tasks, callback) {
        _parallel({ map: async.map, each: async.each }, tasks, callback);
    };

    async.parallelLimit = function(tasks, limit, callback) {
        _parallel({ map: _mapLimit(limit), each: _eachLimit(limit) }, tasks, callback);
    };

    async.series = function (tasks, callback) {
        callback = callback || function () {};
        if (tasks.constructor === Array) {
            async.mapSeries(tasks, function (fn, callback) {
                if (fn) {
                    fn(function (err) {
                        var args = Array.prototype.slice.call(arguments, 1);
                        if (args.length <= 1) {
                            args = args[0];
                        }
                        callback.call(null, err, args);
                    });
                }
            }, callback);
        }
        else {
            var results = {};
            async.eachSeries(_keys(tasks), function (k, callback) {
                tasks[k](function (err) {
                    var args = Array.prototype.slice.call(arguments, 1);
                    if (args.length <= 1) {
                        args = args[0];
                    }
                    results[k] = args;
                    callback(err);
                });
            }, function (err) {
                callback(err, results);
            });
        }
    };

    async.iterator = function (tasks) {
        var makeCallback = function (index) {
            var fn = function () {
                if (tasks.length) {
                    tasks[index].apply(null, arguments);
                }
                return fn.next();
            };
            fn.next = function () {
                return (index < tasks.length - 1) ? makeCallback(index + 1): null;
            };
            return fn;
        };
        return makeCallback(0);
    };

    async.apply = function (fn) {
        var args = Array.prototype.slice.call(arguments, 1);
        return function () {
            return fn.apply(
                null, args.concat(Array.prototype.slice.call(arguments))
            );
        };
    };

    var _concat = function (eachfn, arr, fn, callback) {
        var r = [];
        eachfn(arr, function (x, cb) {
            fn(x, function (err, y) {
                r = r.concat(y || []);
                cb(err);
            });
        }, function (err) {
            callback(err, r);
        });
    };
    async.concat = doParallel(_concat);
    async.concatSeries = doSeries(_concat);

    async.whilst = function (test, iterator, callback) {
        if (test()) {
            iterator(function (err) {
                if (err) {
                    return callback(err);
                }
                async.whilst(test, iterator, callback);
            });
        }
        else {
            callback();
        }
    };

    async.doWhilst = function (iterator, test, callback) {
        iterator(function (err) {
            if (err) {
                return callback(err);
            }
            if (test()) {
                async.doWhilst(iterator, test, callback);
            }
            else {
                callback();
            }
        });
    };

    async.until = function (test, iterator, callback) {
        if (!test()) {
            iterator(function (err) {
                if (err) {
                    return callback(err);
                }
                async.until(test, iterator, callback);
            });
        }
        else {
            callback();
        }
    };

    async.doUntil = function (iterator, test, callback) {
        iterator(function (err) {
            if (err) {
                return callback(err);
            }
            if (!test()) {
                async.doUntil(iterator, test, callback);
            }
            else {
                callback();
            }
        });
    };

    async.queue = function (worker, concurrency) {
        if (concurrency === undefined) {
            concurrency = 1;
        }
        function _insert(q, data, pos, callback) {
          if(data.constructor !== Array) {
              data = [data];
          }
          _each(data, function(task) {
              var item = {
                  data: task,
                  callback: typeof callback === 'function' ? callback : null
              };

              if (pos) {
                q.tasks.unshift(item);
              } else {
                q.tasks.push(item);
              }

              if (q.saturated && q.tasks.length === concurrency) {
                  q.saturated();
              }
              async.setImmediate(q.process);
          });
        }

        var workers = 0;
        var q = {
            tasks: [],
            concurrency: concurrency,
            saturated: null,
            empty: null,
            drain: null,
            push: function (data, callback) {
              _insert(q, data, false, callback);
            },
            unshift: function (data, callback) {
              _insert(q, data, true, callback);
            },
            process: function () {
                if (workers < q.concurrency && q.tasks.length) {
                    var task = q.tasks.shift();
                    if (q.empty && q.tasks.length === 0) {
                        q.empty();
                    }
                    workers += 1;
                    var next = function () {
                        workers -= 1;
                        if (task.callback) {
                            task.callback.apply(task, arguments);
                        }
                        if (q.drain && q.tasks.length + workers === 0) {
                            q.drain();
                        }
                        q.process();
                    };
                    var cb = only_once(next);
                    worker(task.data, cb);
                }
            },
            length: function () {
                return q.tasks.length;
            },
            running: function () {
                return workers;
            }
        };
        return q;
    };

    async.cargo = function (worker, payload) {
        var working     = false,
            tasks       = [];

        var cargo = {
            tasks: tasks,
            payload: payload,
            saturated: null,
            empty: null,
            drain: null,
            push: function (data, callback) {
                if(data.constructor !== Array) {
                    data = [data];
                }
                _each(data, function(task) {
                    tasks.push({
                        data: task,
                        callback: typeof callback === 'function' ? callback : null
                    });
                    if (cargo.saturated && tasks.length === payload) {
                        cargo.saturated();
                    }
                });
                async.setImmediate(cargo.process);
            },
            process: function process() {
                if (working) return;
                if (tasks.length === 0) {
                    if(cargo.drain) cargo.drain();
                    return;
                }

                var ts = typeof payload === 'number'
                            ? tasks.splice(0, payload)
                            : tasks.splice(0);

                var ds = _map(ts, function (task) {
                    return task.data;
                });

                if(cargo.empty) cargo.empty();
                working = true;
                worker(ds, function () {
                    working = false;

                    var args = arguments;
                    _each(ts, function (data) {
                        if (data.callback) {
                            data.callback.apply(null, args);
                        }
                    });

                    process();
                });
            },
            length: function () {
                return tasks.length;
            },
            running: function () {
                return working;
            }
        };
        return cargo;
    };

    var _console_fn = function (name) {
        return function (fn) {
            var args = Array.prototype.slice.call(arguments, 1);
            fn.apply(null, args.concat([function (err) {
                var args = Array.prototype.slice.call(arguments, 1);
                if (typeof console !== 'undefined') {
                    if (err) {
                        if (console.error) {
                            console.error(err);
                        }
                    }
                    else if (console[name]) {
                        _each(args, function (x) {
                            console[name](x);
                        });
                    }
                }
            }]));
        };
    };
    async.log = _console_fn('log');
    async.dir = _console_fn('dir');
    /*async.info = _console_fn('info');
    async.warn = _console_fn('warn');
    async.error = _console_fn('error');*/

    async.memoize = function (fn, hasher) {
        var memo = {};
        var queues = {};
        hasher = hasher || function (x) {
            return x;
        };
        var memoized = function () {
            var args = Array.prototype.slice.call(arguments);
            var callback = args.pop();
            var key = hasher.apply(null, args);
            if (key in memo) {
                callback.apply(null, memo[key]);
            }
            else if (key in queues) {
                queues[key].push(callback);
            }
            else {
                queues[key] = [callback];
                fn.apply(null, args.concat([function () {
                    memo[key] = arguments;
                    var q = queues[key];
                    delete queues[key];
                    for (var i = 0, l = q.length; i < l; i++) {
                      q[i].apply(null, arguments);
                    }
                }]));
            }
        };
        memoized.memo = memo;
        memoized.unmemoized = fn;
        return memoized;
    };

    async.unmemoize = function (fn) {
      return function () {
        return (fn.unmemoized || fn).apply(null, arguments);
      };
    };

    async.times = function (count, iterator, callback) {
        var counter = [];
        for (var i = 0; i < count; i++) {
            counter.push(i);
        }
        return async.map(counter, iterator, callback);
    };

    async.timesSeries = function (count, iterator, callback) {
        var counter = [];
        for (var i = 0; i < count; i++) {
            counter.push(i);
        }
        return async.mapSeries(counter, iterator, callback);
    };

    async.compose = function (/* functions... */) {
        var fns = Array.prototype.reverse.call(arguments);
        return function () {
            var that = this;
            var args = Array.prototype.slice.call(arguments);
            var callback = args.pop();
            async.reduce(fns, args, function (newargs, fn, cb) {
                fn.apply(that, newargs.concat([function () {
                    var err = arguments[0];
                    var nextargs = Array.prototype.slice.call(arguments, 1);
                    cb(err, nextargs);
                }]))
            },
            function (err, results) {
                callback.apply(that, [err].concat(results));
            });
        };
    };

    var _applyEach = function (eachfn, fns /*args...*/) {
        var go = function () {
            var that = this;
            var args = Array.prototype.slice.call(arguments);
            var callback = args.pop();
            return eachfn(fns, function (fn, cb) {
                fn.apply(that, args.concat([cb]));
            },
            callback);
        };
        if (arguments.length > 2) {
            var args = Array.prototype.slice.call(arguments, 2);
            return go.apply(this, args);
        }
        else {
            return go;
        }
    };
    async.applyEach = doParallel(_applyEach);
    async.applyEachSeries = doSeries(_applyEach);

    async.forever = function (fn, callback) {
        function next(err) {
            if (err) {
                if (callback) {
                    return callback(err);
                }
                throw err;
            }
            fn(next);
        }
        next();
    };

    // AMD / RequireJS
    if (typeof define !== 'undefined' && define.amd) {
        define([], function () {
            return async;
        });
    }
    // Node.js
    else if (typeof module !== 'undefined' && module.exports) {
        module.exports = async;
    }
    // included directly via <script> tag
    else {
        root.async = async;
    }

}());

}).call(this,require('_process'))
},{"_process":215}],504:[function(require,module,exports){
/*
colors.js

Copyright (c) 2010

Marak Squires
Alexis Sellier (cloudhead)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/

var isHeadless = false;

if (typeof module !== 'undefined') {
  isHeadless = true;
}

if (!isHeadless) {
  var exports = {};
  var module = {};
  var colors = exports;
  exports.mode = "browser";
} else {
  exports.mode = "console";
}

//
// Prototypes the string object to have additional method calls that add terminal colors
//
var addProperty = function (color, func) {
  exports[color] = function (str) {
    return func.apply(str);
  };
  String.prototype.__defineGetter__(color, func);
};

function stylize(str, style) {

  var styles;

  if (exports.mode === 'console') {
    styles = {
      //styles
      'bold'      : ['\x1B[1m',  '\x1B[22m'],
      'italic'    : ['\x1B[3m',  '\x1B[23m'],
      'underline' : ['\x1B[4m',  '\x1B[24m'],
      'inverse'   : ['\x1B[7m',  '\x1B[27m'],
      'strikethrough' : ['\x1B[9m',  '\x1B[29m'],
      //text colors
      //grayscale
      'white'     : ['\x1B[37m', '\x1B[39m'],
      'grey'      : ['\x1B[90m', '\x1B[39m'],
      'black'     : ['\x1B[30m', '\x1B[39m'],
      //colors
      'blue'      : ['\x1B[34m', '\x1B[39m'],
      'cyan'      : ['\x1B[36m', '\x1B[39m'],
      'green'     : ['\x1B[32m', '\x1B[39m'],
      'magenta'   : ['\x1B[35m', '\x1B[39m'],
      'red'       : ['\x1B[31m', '\x1B[39m'],
      'yellow'    : ['\x1B[33m', '\x1B[39m'],
      //background colors
      //grayscale
      'whiteBG'     : ['\x1B[47m', '\x1B[49m'],
      'greyBG'      : ['\x1B[49;5;8m', '\x1B[49m'],
      'blackBG'     : ['\x1B[40m', '\x1B[49m'],
      //colors
      'blueBG'      : ['\x1B[44m', '\x1B[49m'],
      'cyanBG'      : ['\x1B[46m', '\x1B[49m'],
      'greenBG'     : ['\x1B[42m', '\x1B[49m'],
      'magentaBG'   : ['\x1B[45m', '\x1B[49m'],
      'redBG'       : ['\x1B[41m', '\x1B[49m'],
      'yellowBG'    : ['\x1B[43m', '\x1B[49m']
    };
  } else if (exports.mode === 'browser') {
    styles = {
      //styles
      'bold'      : ['<b>',  '</b>'],
      'italic'    : ['<i>',  '</i>'],
      'underline' : ['<u>',  '</u>'],
      'inverse'   : ['<span style="background-color:black;color:white;">',  '</span>'],
      'strikethrough' : ['<del>',  '</del>'],
      //text colors
      //grayscale
      'white'     : ['<span style="color:white;">',   '</span>'],
      'grey'      : ['<span style="color:gray;">',    '</span>'],
      'black'     : ['<span style="color:black;">',   '</span>'],
      //colors
      'blue'      : ['<span style="color:blue;">',    '</span>'],
      'cyan'      : ['<span style="color:cyan;">',    '</span>'],
      'green'     : ['<span style="color:green;">',   '</span>'],
      'magenta'   : ['<span style="color:magenta;">', '</span>'],
      'red'       : ['<span style="color:red;">',     '</span>'],
      'yellow'    : ['<span style="color:yellow;">',  '</span>'],
      //background colors
      //grayscale
      'whiteBG'     : ['<span style="background-color:white;">',   '</span>'],
      'greyBG'      : ['<span style="background-color:gray;">',    '</span>'],
      'blackBG'     : ['<span style="background-color:black;">',   '</span>'],
      //colors
      'blueBG'      : ['<span style="background-color:blue;">',    '</span>'],
      'cyanBG'      : ['<span style="background-color:cyan;">',    '</span>'],
      'greenBG'     : ['<span style="background-color:green;">',   '</span>'],
      'magentaBG'   : ['<span style="background-color:magenta;">', '</span>'],
      'redBG'       : ['<span style="background-color:red;">',     '</span>'],
      'yellowBG'    : ['<span style="background-color:yellow;">',  '</span>']
    };
  } else if (exports.mode === 'none') {
    return str + '';
  } else {
    console.log('unsupported mode, try "browser", "console" or "none"');
  }
  return styles[style][0] + str + styles[style][1];
}

function applyTheme(theme) {

  //
  // Remark: This is a list of methods that exist
  // on String that you should not overwrite.
  //
  var stringPrototypeBlacklist = [
    '__defineGetter__', '__defineSetter__', '__lookupGetter__', '__lookupSetter__', 'charAt', 'constructor',
    'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'toLocaleString', 'toString', 'valueOf', 'charCodeAt',
    'indexOf', 'lastIndexof', 'length', 'localeCompare', 'match', 'replace', 'search', 'slice', 'split', 'substring',
    'toLocaleLowerCase', 'toLocaleUpperCase', 'toLowerCase', 'toUpperCase', 'trim', 'trimLeft', 'trimRight'
  ];

  Object.keys(theme).forEach(function (prop) {
    if (stringPrototypeBlacklist.indexOf(prop) !== -1) {
      console.log('warn: '.red + ('String.prototype' + prop).magenta + ' is probably something you don\'t want to override. Ignoring style name');
    }
    else {
      if (typeof(theme[prop]) === 'string') {
        addProperty(prop, function () {
          return exports[theme[prop]](this);
        });
      }
      else {
        addProperty(prop, function () {
          var ret = this;
          for (var t = 0; t < theme[prop].length; t++) {
            ret = exports[theme[prop][t]](ret);
          }
          return ret;
        });
      }
    }
  });
}


//
// Iterate through all default styles and colors
//
var x = ['bold', 'underline', 'strikethrough', 'italic', 'inverse', 'grey', 'black', 'yellow', 'red', 'green', 'blue', 'white', 'cyan', 'magenta', 'greyBG', 'blackBG', 'yellowBG', 'redBG', 'greenBG', 'blueBG', 'whiteBG', 'cyanBG', 'magentaBG'];
x.forEach(function (style) {

  // __defineGetter__ at the least works in more browsers
  // http://robertnyman.com/javascript/javascript-getters-setters.html
  // Object.defineProperty only works in Chrome
  addProperty(style, function () {
    return stylize(this, style);
  });
});

function sequencer(map) {
  return function () {
    if (!isHeadless) {
      return this.replace(/( )/, '$1');
    }
    var exploded = this.split(""), i = 0;
    exploded = exploded.map(map);
    return exploded.join("");
  };
}

var rainbowMap = (function () {
  var rainbowColors = ['red', 'yellow', 'green', 'blue', 'magenta']; //RoY G BiV
  return function (letter, i, exploded) {
    if (letter === " ") {
      return letter;
    } else {
      return stylize(letter, rainbowColors[i++ % rainbowColors.length]);
    }
  };
})();

exports.themes = {};

exports.addSequencer = function (name, map) {
  addProperty(name, sequencer(map));
};

exports.addSequencer('rainbow', rainbowMap);
exports.addSequencer('zebra', function (letter, i, exploded) {
  return i % 2 === 0 ? letter : letter.inverse;
});

exports.setTheme = function (theme) {
  if (typeof theme === 'string') {
    try {
      exports.themes[theme] = require(theme);
      applyTheme(exports.themes[theme]);
      return exports.themes[theme];
    } catch (err) {
      console.log(err);
      return err;
    }
  } else {
    applyTheme(theme);
  }
};


addProperty('stripColors', function () {
  return ("" + this).replace(/\x1B\[\d+m/g, '');
});

// please no
function zalgo(text, options) {
  var soul = {
    "up" : [
      '̍', '̎', '̄', '̅',
      '̿', '̑', '̆', '̐',
      '͒', '͗', '͑', '̇',
      '̈', '̊', '͂', '̓',
      '̈', '͊', '͋', '͌',
      '̃', '̂', '̌', '͐',
      '̀', '́', '̋', '̏',
      '̒', '̓', '̔', '̽',
      '̉', 'ͣ', 'ͤ', 'ͥ',
      'ͦ', 'ͧ', 'ͨ', 'ͩ',
      'ͪ', 'ͫ', 'ͬ', 'ͭ',
      'ͮ', 'ͯ', '̾', '͛',
      '͆', '̚'
    ],
    "down" : [
      '̖', '̗', '̘', '̙',
      '̜', '̝', '̞', '̟',
      '̠', '̤', '̥', '̦',
      '̩', '̪', '̫', '̬',
      '̭', '̮', '̯', '̰',
      '̱', '̲', '̳', '̹',
      '̺', '̻', '̼', 'ͅ',
      '͇', '͈', '͉', '͍',
      '͎', '͓', '͔', '͕',
      '͖', '͙', '͚', '̣'
    ],
    "mid" : [
      '̕', '̛', '̀', '́',
      '͘', '̡', '̢', '̧',
      '̨', '̴', '̵', '̶',
      '͜', '͝', '͞',
      '͟', '͠', '͢', '̸',
      '̷', '͡', ' ҉'
    ]
  },
  all = [].concat(soul.up, soul.down, soul.mid),
  zalgo = {};

  function randomNumber(range) {
    var r = Math.floor(Math.random() * range);
    return r;
  }

  function is_char(character) {
    var bool = false;
    all.filter(function (i) {
      bool = (i === character);
    });
    return bool;
  }

  function heComes(text, options) {
    var result = '', counts, l;
    options = options || {};
    options["up"] = options["up"] || true;
    options["mid"] = options["mid"] || true;
    options["down"] = options["down"] || true;
    options["size"] = options["size"] || "maxi";
    text = text.split('');
    for (l in text) {
      if (is_char(l)) {
        continue;
      }
      result = result + text[l];
      counts = {"up" : 0, "down" : 0, "mid" : 0};
      switch (options.size) {
      case 'mini':
        counts.up = randomNumber(8);
        counts.min = randomNumber(2);
        counts.down = randomNumber(8);
        break;
      case 'maxi':
        counts.up = randomNumber(16) + 3;
        counts.min = randomNumber(4) + 1;
        counts.down = randomNumber(64) + 3;
        break;
      default:
        counts.up = randomNumber(8) + 1;
        counts.mid = randomNumber(6) / 2;
        counts.down = randomNumber(8) + 1;
        break;
      }

      var arr = ["up", "mid", "down"];
      for (var d in arr) {
        var index = arr[d];
        for (var i = 0 ; i <= counts[index]; i++) {
          if (options[index]) {
            result = result + soul[index][randomNumber(soul[index].length)];
          }
        }
      }
    }
    return result;
  }
  return heComes(text);
}


// don't summon zalgo
addProperty('zalgo', function () {
  return zalgo(this);
});

},{}],505:[function(require,module,exports){
/*
    cycle.js
    2013-02-19

    Public Domain.

    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.

    This code should be minified before deployment.
    See http://javascript.crockford.com/jsmin.html

    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
    NOT CONTROL.
*/

/*jslint evil: true, regexp: true */

/*members $ref, apply, call, decycle, hasOwnProperty, length, prototype, push,
    retrocycle, stringify, test, toString
*/

var cycle = exports;

cycle.decycle = function decycle(object) {
    'use strict';

// Make a deep copy of an object or array, assuring that there is at most
// one instance of each object or array in the resulting structure. The
// duplicate references (which might be forming cycles) are replaced with
// an object of the form
//      {$ref: PATH}
// where the PATH is a JSONPath string that locates the first occurance.
// So,
//      var a = [];
//      a[0] = a;
//      return JSON.stringify(JSON.decycle(a));
// produces the string '[{"$ref":"$"}]'.

// JSONPath is used to locate the unique object. $ indicates the top level of
// the object or array. [NUMBER] or [STRING] indicates a child member or
// property.

    var objects = [],   // Keep a reference to each unique object or array
        paths = [];     // Keep the path to each unique object or array

    return (function derez(value, path) {

// The derez recurses through the object, producing the deep copy.

        var i,          // The loop counter
            name,       // Property name
            nu;         // The new object or array

// typeof null === 'object', so go on if this value is really an object but not
// one of the weird builtin objects.

        if (typeof value === 'object' && value !== null &&
                !(value instanceof Boolean) &&
                !(value instanceof Date)    &&
                !(value instanceof Number)  &&
                !(value instanceof RegExp)  &&
                !(value instanceof String)) {

// If the value is an object or array, look to see if we have already
// encountered it. If so, return a $ref/path object. This is a hard way,
// linear search that will get slower as the number of unique objects grows.

            for (i = 0; i < objects.length; i += 1) {
                if (objects[i] === value) {
                    return {$ref: paths[i]};
                }
            }

// Otherwise, accumulate the unique value and its path.

            objects.push(value);
            paths.push(path);

// If it is an array, replicate the array.

            if (Object.prototype.toString.apply(value) === '[object Array]') {
                nu = [];
                for (i = 0; i < value.length; i += 1) {
                    nu[i] = derez(value[i], path + '[' + i + ']');
                }
            } else {

// If it is an object, replicate the object.

                nu = {};
                for (name in value) {
                    if (Object.prototype.hasOwnProperty.call(value, name)) {
                        nu[name] = derez(value[name],
                            path + '[' + JSON.stringify(name) + ']');
                    }
                }
            }
            return nu;
        }
        return value;
    }(object, '$'));
};


cycle.retrocycle = function retrocycle($) {
    'use strict';

// Restore an object that was reduced by decycle. Members whose values are
// objects of the form
//      {$ref: PATH}
// are replaced with references to the value found by the PATH. This will
// restore cycles. The object will be mutated.

// The eval function is used to locate the values described by a PATH. The
// root object is kept in a $ variable. A regular expression is used to
// assure that the PATH is extremely well formed. The regexp contains nested
// * quantifiers. That has been known to have extremely bad performance
// problems on some browsers for very long strings. A PATH is expected to be
// reasonably short. A PATH is allowed to belong to a very restricted subset of
// Goessner's JSONPath.

// So,
//      var s = '[{"$ref":"$"}]';
//      return JSON.retrocycle(JSON.parse(s));
// produces an array containing a single element which is the array itself.

    var px =
        /^\$(?:\[(?:\d+|\"(?:[^\\\"\u0000-\u001f]|\\([\\\"\/bfnrt]|u[0-9a-zA-Z]{4}))*\")\])*$/;

    (function rez(value) {

// The rez function walks recursively through the object looking for $ref
// properties. When it finds one that has a value that is a path, then it
// replaces the $ref object with a reference to the value that is found by
// the path.

        var i, item, name, path;

        if (value && typeof value === 'object') {
            if (Object.prototype.toString.apply(value) === '[object Array]') {
                for (i = 0; i < value.length; i += 1) {
                    item = value[i];
                    if (item && typeof item === 'object') {
                        path = item.$ref;
                        if (typeof path === 'string' && px.test(path)) {
                            value[i] = eval(path);
                        } else {
                            rez(item);
                        }
                    }
                }
            } else {
                for (name in value) {
                    if (typeof value[name] === 'object') {
                        item = value[name];
                        if (item) {
                            path = item.$ref;
                            if (typeof path === 'string' && px.test(path)) {
                                value[name] = eval(path);
                            } else {
                                rez(item);
                            }
                        }
                    }
                }
            }
        }
    }($));
    return $;
};

},{}],506:[function(require,module,exports){
(function (__dirname){
/*
 * pkginfo.js: Top-level include for the pkginfo module
 *
 * (C) 2011, Charlie Robbins
 *
 */
 
var fs = require('fs'),
    path = require('path');

//
// ### function pkginfo ([options, 'property', 'property' ..])
// #### @pmodule {Module} Parent module to read from.
// #### @options {Object|Array|string} **Optional** Options used when exposing properties.
// #### @arguments {string...} **Optional** Specified properties to expose.
// Exposes properties from the package.json file for the parent module on 
// it's exports. Valid usage:
//
// `require('pkginfo')()`
//
// `require('pkginfo')('version', 'author');`
//
// `require('pkginfo')(['version', 'author']);`
//
// `require('pkginfo')({ include: ['version', 'author'] });`
//
var pkginfo = module.exports = function (pmodule, options) {
  var args = [].slice.call(arguments, 2).filter(function (arg) {
    return typeof arg === 'string';
  });
  
  //
  // **Parse variable arguments**
  //
  if (Array.isArray(options)) {
    //
    // If the options passed in is an Array assume that
    // it is the Array of properties to expose from the
    // on the package.json file on the parent module.
    //
    options = { include: options };
  }
  else if (typeof options === 'string') {
    //
    // Otherwise if the first argument is a string, then
    // assume that it is the first property to expose from
    // the package.json file on the parent module.
    //
    options = { include: [options] };
  }
  
  //
  // **Setup default options**
  //
  options = options || {};
  
  // ensure that includes have been defined
  options.include = options.include || [];
  
  if (args.length > 0) {
    //
    // If additional string arguments have been passed in
    // then add them to the properties to expose on the 
    // parent module. 
    //
    options.include = options.include.concat(args);
  }
  
  var pkg = pkginfo.read(pmodule, options.dir).package;
  Object.keys(pkg).forEach(function (key) {
    if (options.include.length > 0 && !~options.include.indexOf(key)) {
      return;
    }
    
    if (!pmodule.exports[key]) {
      pmodule.exports[key] = pkg[key];
    }
  });
  
  return pkginfo;
};

//
// ### function find (dir)
// #### @pmodule {Module} Parent module to read from.
// #### @dir {string} **Optional** Directory to start search from.
// Searches up the directory tree from `dir` until it finds a directory
// which contains a `package.json` file. 
//
pkginfo.find = function (pmodule, dir) {
  if (! dir) {
    dir = path.dirname(pmodule.filename);
  }
  
  var files = fs.readdirSync(dir);
  
  if (~files.indexOf('package.json')) {
    return path.join(dir, 'package.json');
  }
  
  if (dir === '/') {
    throw new Error('Could not find package.json up from: ' + dir);
  }
  else if (!dir || dir === '.') {
    throw new Error('Cannot find package.json from unspecified directory');
  }
  
  return pkginfo.find(pmodule, path.dirname(dir));
};

//
// ### function read (pmodule, dir)
// #### @pmodule {Module} Parent module to read from.
// #### @dir {string} **Optional** Directory to start search from.
// Searches up the directory tree from `dir` until it finds a directory
// which contains a `package.json` file and returns the package information.
//
pkginfo.read = function (pmodule, dir) { 
  dir = pkginfo.find(pmodule, dir);
  
  var data = fs.readFileSync(dir).toString();
      
  return {
    dir: dir, 
    package: JSON.parse(data)
  };
};

//
// Call `pkginfo` on this module and expose version.
//
pkginfo(module, {
  dir: __dirname,
  include: ['version'],
  target: pkginfo
});
}).call(this,"/node_modules/pushrocks/node_modules/smartcli/node_modules/cliff/node_modules/winston/node_modules/pkginfo/lib")
},{"fs":2,"path":214}],507:[function(require,module,exports){
exports.get = function(belowFn) {
  var oldLimit = Error.stackTraceLimit;
  Error.stackTraceLimit = Infinity;

  var dummyObject = {};

  var v8Handler = Error.prepareStackTrace;
  Error.prepareStackTrace = function(dummyObject, v8StackTrace) {
    return v8StackTrace;
  };
  Error.captureStackTrace(dummyObject, belowFn || exports.get);

  var v8StackTrace = dummyObject.stack;
  Error.prepareStackTrace = v8Handler;
  Error.stackTraceLimit = oldLimit;

  return v8StackTrace;
};

exports.parse = function(err) {
  if (!err.stack) {
    return [];
  }

  var self = this;
  var lines = err.stack.split('\n').slice(1);

  return lines
    .map(function(line) {
      if (line.match(/^\s*[-]{4,}$/)) {
        return self._createParsedCallSite({
          fileName: line,
          lineNumber: null,
          functionName: null,
          typeName: null,
          methodName: null,
          columnNumber: null,
          'native': null,
        });
      }

      var lineMatch = line.match(/at (?:(.+)\s+)?\(?(?:(.+?):(\d+):(\d+)|([^)]+))\)?/);
      if (!lineMatch) {
        return;
      }

      var object = null;
      var method = null;
      var functionName = null;
      var typeName = null;
      var methodName = null;
      var isNative = (lineMatch[5] === 'native');

      if (lineMatch[1]) {
        var methodMatch = lineMatch[1].match(/([^\.]+)(?:\.(.+))?/);
        object = methodMatch[1];
        method = methodMatch[2];
        functionName = lineMatch[1];
        typeName = 'Object';
      }

      if (method) {
        typeName = object;
        methodName = method;
      }

      if (method === '<anonymous>') {
        methodName = null;
        functionName = '';
      }

      var properties = {
        fileName: lineMatch[2] || null,
        lineNumber: parseInt(lineMatch[3], 10) || null,
        functionName: functionName,
        typeName: typeName,
        methodName: methodName,
        columnNumber: parseInt(lineMatch[4], 10) || null,
        'native': isNative,
      };

      return self._createParsedCallSite(properties);
    })
    .filter(function(callSite) {
      return !!callSite;
    });
};

exports._createParsedCallSite = function(properties) {
  var methods = {};
  for (var property in properties) {
    var prefix = 'get';
    if (property === 'native') {
      prefix = 'is';
    }
    var method = prefix + property.substr(0, 1).toUpperCase() + property.substr(1);

    (function(property) {
      methods[method] = function() {
        return properties[property];
      }
    })(property);
  }

  var callSite = Object.create(methods);
  for (var property in properties) {
    callSite[property] = properties[property];
  }

  return callSite;
};

},{}],508:[function(require,module,exports){
/**
 * Inquirer.js
 * A collection of common interactive command line user interfaces.
 */

var inquirer = module.exports;


/**
 * Client interfaces
 */

inquirer.prompts = {};

inquirer.Separator = require('./objects/separator');

inquirer.ui = {
  BottomBar: require('./ui/bottom-bar'),
  Prompt: require('./ui/prompt')
};

/**
 * Create a new self-contained prompt module.
 */
inquirer.createPromptModule = function (opt) {
  var promptModule = function (questions, allDone) {
    var ui = new inquirer.ui.Prompt(promptModule.prompts, opt);
    ui.run(questions, allDone);
    return ui;
  };
  promptModule.prompts = {};

  /**
   * Register a prompt type
   * @param {String} name     Prompt type name
   * @param {Function} prompt Prompt constructor
   * @return {inquirer}
   */

  promptModule.registerPrompt = function (name, prompt) {
    promptModule.prompts[name] = prompt;
    return this;
  };

  /**
   * Register the defaults provider prompts
   */

  promptModule.restoreDefaultPrompts = function () {
    this.registerPrompt('list', require('./prompts/list'));
    this.registerPrompt('input', require('./prompts/input'));
    this.registerPrompt('confirm', require('./prompts/confirm'));
    this.registerPrompt('rawlist', require('./prompts/rawlist'));
    this.registerPrompt('expand', require('./prompts/expand'));
    this.registerPrompt('checkbox', require('./prompts/checkbox'));
    this.registerPrompt('password', require('./prompts/password'));
  };

  promptModule.restoreDefaultPrompts();

  return promptModule;
};

/**
 * Public CLI helper interface
 * @param  {Array|Object|rx.Observable} questions - Questions settings array
 * @param  {Function} cb - Callback being passed the user answers
 * @return {inquirer.ui.Prompt}
 */

inquirer.prompt = inquirer.createPromptModule();

// Expose helper functions on the top level for easiest usage by common users
inquirer.registerPrompt = function (name, prompt) {
  inquirer.prompt.registerPrompt(name, prompt);
};
inquirer.restoreDefaultPrompts = function () {
  inquirer.prompt.restoreDefaultPrompts();
};

},{"./objects/separator":511,"./prompts/checkbox":513,"./prompts/confirm":514,"./prompts/expand":515,"./prompts/input":516,"./prompts/list":517,"./prompts/password":518,"./prompts/rawlist":519,"./ui/bottom-bar":521,"./ui/prompt":522}],509:[function(require,module,exports){
'use strict';
var _ = require('lodash');


/**
 * Choice object
 * Normalize input as choice object
 * @constructor
 * @param {String|Object} val  Choice value. If an object is passed, it should contains
 *                             at least one of `value` or `name` property
 */

var Choice = module.exports = function (val, answers) {
  // Don't process Choice and Separator object
  if (val instanceof Choice || val.type === 'separator') {
    return val;
  }

  if (_.isString(val)) {
    this.name = val;
    this.value = val;
  } else {
    _.extend(this, val, {
      name: val.name || val.value,
      value: val.hasOwnProperty('value') ? val.value : val.name
    });
  }

  if (_.isFunction(val.disabled)) {
    this.disabled = val.disabled(answers);
  } else {
    this.disabled = val.disabled;
  }
};

},{"lodash":541}],510:[function(require,module,exports){
'use strict';
var assert = require('assert');
var _ = require('lodash');
var chalk = require('chalk');
var Separator = require('./separator');
var Choice = require('./choice');


/**
 * Choices collection
 * Collection of multiple `choice` object
 * @constructor
 * @param {Array} choices  All `choice` to keep in the collection
 */

var Choices = module.exports = function (choices, answers) {
  this.choices = choices.map(function (val) {
    if (val.type === 'separator') {
      if (!(val instanceof Separator)) {
        val = new Separator(val.line);
      }
      return val;
    }
    return new Choice(val, answers);
  });

  this.realChoices = this.choices
    .filter(Separator.exclude)
    .filter(function (item) {
      return !item.disabled;
    });

  Object.defineProperty(this, 'length', {
    get: function () {
      return this.choices.length;
    },
    set: function (val) {
      this.choices.length = val;
    }
  });

  Object.defineProperty(this, 'realLength', {
    get: function () {
      return this.realChoices.length;
    },
    set: function () {
      throw new Error('Cannot set `realLength` of a Choices collection');
    }
  });
};


/**
 * Get a valid choice from the collection
 * @param  {Number} selector  The selected choice index
 * @return {Choice|Undefined} Return the matched choice or undefined
 */

Choices.prototype.getChoice = function (selector) {
  assert(_.isNumber(selector));
  return this.realChoices[selector];
};


/**
 * Get a raw element from the collection
 * @param  {Number} selector  The selected index value
 * @return {Choice|Undefined} Return the matched choice or undefined
 */

Choices.prototype.get = function (selector) {
  assert(_.isNumber(selector));
  return this.choices[selector];
};


/**
 * Match the valid choices against a where clause
 * @param  {Object} whereClause Lodash `where` clause
 * @return {Array}              Matching choices or empty array
 */

Choices.prototype.where = function (whereClause) {
  return _.where(this.realChoices, whereClause);
};


/**
 * Pluck a particular key from the choices
 * @param  {String} propertyName Property name to select
 * @return {Array}               Selected properties
 */

Choices.prototype.pluck = function (propertyName) {
  return _.pluck(this.realChoices, propertyName);
};


// Expose usual Array methods
Choices.prototype.forEach = function () {
  return this.choices.forEach.apply(this.choices, arguments);
};
Choices.prototype.filter = function () {
  return this.choices.filter.apply(this.choices, arguments);
};
Choices.prototype.push = function () {
  var objs = _.map(arguments, function (val) { return new Choice(val); });
  this.choices.push.apply(this.choices, objs);
  this.realChoices = this.choices.filter(Separator.exclude);
  return this.choices;
};

},{"./choice":509,"./separator":511,"assert":3,"chalk":530,"lodash":541}],511:[function(require,module,exports){
'use strict';
var chalk = require('chalk');
var figures = require('figures');


/**
 * Separator object
 * Used to space/separate choices group
 * @constructor
 * @param {String} line   Separation line content (facultative)
 */

var Separator = module.exports = function (line) {
  this.type = 'separator';
  this.line = chalk.dim(line || new Array(15).join(figures.line));
};

/**
 * Helper function returning false if object is a separator
 * @param  {Object} obj object to test against
 * @return {Boolean}    `false` if object is a separator
 */

Separator.exclude = function (obj) {
  return obj.type !== 'separator';
};

/**
 * Stringify separator
 * @return {String} the separator display string
 */

Separator.prototype.toString = function () {
  return this.line;
};

},{"chalk":530,"figures":540}],512:[function(require,module,exports){
/**
 * Base prompt implementation
 * Should be extended by prompt types.
 */

var rx = require('rx-lite');
var _ = require('lodash');
var chalk = require('chalk');
var ansiRegex = require('ansi-regex');
var readline = require('readline');
var cliWidth = require('cli-width');
var runAsync = require('run-async');
var Choices = require('../objects/choices');
var ScreenManager = require('../utils/screen-manager');


var Prompt = module.exports = function (question, rl, answers) {

  // Setup instance defaults property
  _.assign(this, {
    answers: answers,
    status : 'pending'
  });

  // Set defaults prompt options
  this.opt = _.defaults(_.clone(question), {
    validate: function () { return true; },
    filter: function (val) { return val; },
    when: function () { return true; }
  });

  // Check to make sure prompt requirements are there
  if (!this.opt.message) {
    this.throwParamError('message');
  }
  if (!this.opt.name) {
    this.throwParamError('name');
  }

  // Normalize choices
  if (Array.isArray(this.opt.choices)) {
    this.opt.choices = new Choices(this.opt.choices, answers);
  }

  this.rl = rl;
  this.screen = new ScreenManager(this.rl);
};


/**
 * Start the Inquiry session and manage output value filtering
 * @param  {Function} cb  Callback when prompt is done
 * @return {this}
 */

Prompt.prototype.run = function( cb ) {
  this._run(function (value) {
    this.filter(value, cb);
  }.bind(this));
};

// default noop (this one should be overwritten in prompts)
Prompt.prototype._run = function (cb) { cb(); };


/**
 * Throw an error telling a required parameter is missing
 * @param  {String} name Name of the missing param
 * @return {Throw Error}
 */

Prompt.prototype.throwParamError = function (name) {
  throw new Error('You must provide a `' + name + '` parameter');
};

/**
 * Validate a given input
 * @param  {String} value       Input string
 * @param  {Function} callback  Pass `true` (if input is valid) or an error message as
 *                              parameter.
 * @return {null}
 */

Prompt.prototype.validate = function (input, cb) {
  runAsync(this.opt.validate, cb, input);
};

/**
 * Run the provided validation method each time a submit event occur.
 * @param  {Rx.Observable} submit - submit event flow
 * @return {Object}        Object containing two observables: `success` and `error`
 */
Prompt.prototype.handleSubmitEvents = function (submit) {
  var self = this;
  var validation = submit.flatMap(function (value) {
    return rx.Observable.create(function (observer) {
      runAsync(self.opt.validate, function (isValid) {
        observer.onNext({ isValid: isValid, value: self.getCurrentValue(value) });
        observer.onCompleted();
      }, self.getCurrentValue(value), self.answers);
    });
  }).share();

  var success = validation
    .filter(function (state) { return state.isValid === true; })
    .take(1);

  var error = validation
    .filter(function (state) { return state.isValid !== true; })
    .takeUntil(success);

  return {
    success: success,
    error: error
  };
};

Prompt.prototype.getCurrentValue = function (value) {
  return value;
};

/**
 * Filter a given input before sending back
 * @param  {String}   value     Input string
 * @param  {Function} callback  Pass the filtered input as parameter.
 * @return {null}
 */

Prompt.prototype.filter = function (input, cb) {
  runAsync(this.opt.filter, cb, input);
};

/**
 * Return the prompt line prefix
 * @param  {String} [optionnal] String to concatenate to the prefix
 * @return {String} prompt prefix
 */

Prompt.prototype.prefix = function (str) {
  str || (str = '');
  return chalk.green('?') + ' ' + str;
};

/**
 * Return the prompt line suffix
 * @param  {String} [optionnal] String to concatenate to the suffix
 * @return {String} prompt suffix
 */

var reStrEnd = new RegExp('(?:' + ansiRegex().source + ')$|$');

Prompt.prototype.suffix = function (str) {
  str || (str = '');

  // make sure we get the `:` inside the styles
  if (str.length < 1 || /[a-z1-9]$/i.test(chalk.stripColor(str))) {
    str = str.replace(reStrEnd, ':$&');
  }

  return str.trim() + ' ';
};

/**
 * Generate the prompt question string
 * @return {String} prompt question string
 */

Prompt.prototype.getQuestion = function () {
  var message = chalk.green('?') + ' ' + chalk.bold(this.opt.message) + ' ';

  // Append the default if available, and if question isn't answered
  if ( this.opt.default != null && this.status !== 'answered' ) {
    message += chalk.dim('('+ this.opt.default + ') ');
  }

  return message;
};

},{"../objects/choices":510,"../utils/screen-manager":526,"ansi-regex":529,"chalk":530,"cli-width":539,"lodash":541,"readline":2,"run-async":548,"rx-lite":551}],513:[function(require,module,exports){
/**
 * `list` type prompt
 */

var _ = require("lodash");
var util = require("util");
var chalk = require("chalk");
var cliCursor = require("cli-cursor");
var figures = require("figures");
var Base = require("./base");
var observe = require("../utils/events");
var utils = require("../utils/readline");
var Paginator = require("../utils/paginator");


/**
 * Module exports
 */

module.exports = Prompt;


/**
 * Constructor
 */

function Prompt() {
  Base.apply( this, arguments );

  if (!this.opt.choices) {
    this.throwParamError("choices");
  }

  if ( _.isArray(this.opt.default) ) {
    this.opt.choices.forEach(function( choice ) {
      if ( this.opt.default.indexOf(choice.value) >= 0 ) {
        choice.checked = true;
      }
    }, this);
  }

  this.firstRender = true;
  this.pointer = 0;

  // Make sure no default is set (so it won't be printed)
  this.opt.default = null;

  this.paginator = new Paginator();
}
util.inherits( Prompt, Base );


/**
 * Start the Inquiry session
 * @param  {Function} cb      Callback when prompt is done
 * @return {this}
 */

Prompt.prototype._run = function( cb ) {
  this.done = cb;

  var events = observe(this.rl);

  var validation = this.handleSubmitEvents( events.line );
  validation.success.forEach( this.onEnd.bind(this) );
  validation.error.forEach( this.onError.bind(this) );

  events.normalizedUpKey.takeUntil( validation.success ).forEach( this.onUpKey.bind(this) );
  events.normalizedDownKey.takeUntil( validation.success ).forEach( this.onDownKey.bind(this) );
  events.numberKey.takeUntil( validation.success ).forEach( this.onNumberKey.bind(this) );
  events.spaceKey.takeUntil( validation.success ).forEach( this.onSpaceKey.bind(this) );

  // Init the prompt
  cliCursor.hide();
  this.render();

  return this;
};


/**
 * Render the prompt to screen
 * @return {Prompt} self
 */

Prompt.prototype.render = function (error) {
  // Render question
  var cursor = 0;
  var message = this.getQuestion();

  if ( this.firstRender ) {
    message += "(Press <space> to select)";
  }

  // Render choices or answer depending on the state
  if ( this.status === "answered" ) {
    message += chalk.cyan( this.selection.join(", ") );
  } else {
    var choicesStr = renderChoices(this.opt.choices, this.pointer);
    message += "\n" + this.paginator.paginate(choicesStr, this.pointer);
  }

  if (error) {
    message += '\n' + chalk.red('>> ') + error;
    cursor++;
  }

  this.firstRender = false;

  this.screen.render(message, { cursor: cursor });
};


/**
 * When user press `enter` key
 */

Prompt.prototype.onEnd = function( state ) {

  this.status = "answered";

  // Rerender prompt (and clean subline error)
  this.render();

  this.screen.done();
  cliCursor.show();
  this.done( state.value );
};

Prompt.prototype.onError = function ( state ) {
  this.render(state.isValid);
};

Prompt.prototype.getCurrentValue = function () {
  var choices = this.opt.choices.filter(function( choice ) {
    return !!choice.checked && !choice.disabled;
  });

  this.selection = _.pluck(choices, "name");
  return _.pluck(choices, "value");
};

Prompt.prototype.onUpKey = function() {
  var len = this.opt.choices.realLength;
  this.pointer = (this.pointer > 0) ? this.pointer - 1 : len - 1;
  this.render();
};

Prompt.prototype.onDownKey = function() {
  var len = this.opt.choices.realLength;
  this.pointer = (this.pointer < len - 1) ? this.pointer + 1 : 0;
  this.render();
};

Prompt.prototype.onNumberKey = function( input ) {
  if ( input <= this.opt.choices.realLength ) {
    this.pointer = input - 1;
    this.toggleChoice( this.pointer );
  }
  this.render();
};

Prompt.prototype.onSpaceKey = function( input ) {
  this.toggleChoice(this.pointer);
  this.render();
};

Prompt.prototype.toggleChoice = function( index ) {
  var checked = this.opt.choices.getChoice(index).checked;
  this.opt.choices.getChoice(index).checked = !checked;
};


/**
 * Function for rendering checkbox choices
 * @param  {Number} pointer Position of the pointer
 * @return {String}         Rendered content
 */

function renderChoices(choices, pointer) {
  var output = '';
  var separatorOffset = 0;

  choices.forEach(function (choice, i) {
    if (choice.type === 'separator') {
      separatorOffset++;
      output += ' ' + choice + '\n';
      return;
    }

    if (choice.disabled) {
      separatorOffset++;
      output += ' - ' + choice.name;
      output += ' (' + (_.isString(choice.disabled) ? choice.disabled : 'Disabled') + ')';
    } else {
      var isSelected = (i - separatorOffset === pointer);
      output += isSelected ? chalk.cyan(figures.pointer) : ' ';
      output += getCheckbox(choice.checked) + ' ' + choice.name;
    }

    output += '\n';
  });

  return output.replace(/\n$/, '');
}

/**
 * Get the checkbox
 * @param  {Boolean} checked - add a X or not to the checkbox
 * @return {String} Composited checkbox string
 */

function getCheckbox(checked) {
  return checked ? chalk.green(figures.radioOn) : figures.radioOff;
}

},{"../utils/events":523,"../utils/paginator":524,"../utils/readline":525,"./base":512,"chalk":530,"cli-cursor":535,"figures":540,"lodash":541,"util":247}],514:[function(require,module,exports){
/**
 * `confirm` type prompt
 */

var _ = require("lodash");
var util = require("util");
var chalk = require("chalk");
var Base = require("./base");
var observe = require("../utils/events");


/**
 * Module exports
 */

module.exports = Prompt;


/**
 * Constructor
 */

function Prompt() {
  Base.apply( this, arguments );

  var rawDefault = true;

  _.extend( this.opt, {
    filter: function( input ) {
      var value = rawDefault;
      if ( input != null && input !== "" ) {
        value = /^y(es)?/i.test(input);
      }
      return value;
    }.bind(this)
  });

  if ( _.isBoolean(this.opt.default) ) {
    rawDefault = this.opt.default;
  }

  this.opt.default = rawDefault ? "Y/n" : "y/N";

  return this;
}
util.inherits( Prompt, Base );


/**
 * Start the Inquiry session
 * @param  {Function} cb   Callback when prompt is done
 * @return {this}
 */

Prompt.prototype._run = function( cb ) {
  this.done = cb;

  // Once user confirm (enter key)
  var events = observe(this.rl);
  events.keypress.takeUntil( events.line ).forEach( this.onKeypress.bind(this) );

  events.line.take(1).forEach( this.onEnd.bind(this) );

  // Init
  this.render();

  return this;
};


/**
 * Render the prompt to screen
 * @return {Prompt} self
 */

Prompt.prototype.render = function (answer) {
  var message = this.getQuestion();

  if (typeof answer === "boolean") {
    message += chalk.cyan(answer ? "Yes" : "No");
  } else {
    message += this.rl.line;
  }

  this.screen.render(message);

  return this;
};

/**
 * When user press `enter` key
 */

Prompt.prototype.onEnd = function( input ) {
  this.status = "answered";

  var output = this.opt.filter( input );
  this.render( output );

  this.screen.done();
  this.done( input ); // send "input" because the master class will refilter
};

/**
 * When user press a key
 */

Prompt.prototype.onKeypress = function() {
    this.render();
};

},{"../utils/events":523,"./base":512,"chalk":530,"lodash":541,"util":247}],515:[function(require,module,exports){
/**
 * `rawlist` type prompt
 */

var _ = require("lodash");
var util = require("util");
var chalk = require("chalk");
var Base = require("./base");
var Separator = require("../objects/separator");
var observe = require("../utils/events");
var Paginator = require("../utils/paginator");


/**
 * Module exports
 */

module.exports = Prompt;


/**
 * Constructor
 */

function Prompt() {
  Base.apply( this, arguments );

  if ( !this.opt.choices ) {
    this.throwParamError("choices");
  }

  this.validateChoices( this.opt.choices );

  // Add the default `help` (/expand) option
  this.opt.choices.push({
    key   : "h",
    name  : "Help, list all options",
    value : "help"
  });

  // Setup the default string (capitalize the default key)
  this.opt.default = this.generateChoicesString( this.opt.choices, this.opt.default );

  this.paginator = new Paginator();
}
util.inherits( Prompt, Base );


/**
 * Start the Inquiry session
 * @param  {Function} cb      Callback when prompt is done
 * @return {this}
 */

Prompt.prototype._run = function( cb ) {
  this.done = cb;

  // Save user answer and update prompt to show selected option.
  var events = observe(this.rl);
  this.lineObs = events.line.forEach( this.onSubmit.bind(this) );
  this.keypressObs = events.keypress.forEach( this.onKeypress.bind(this) );

  // Init the prompt
  this.render();

  return this;
};


/**
 * Render the prompt to screen
 * @return {Prompt} self
 */

Prompt.prototype.render = function (error, hint) {
  var cursor = 0;
  var message = this.getQuestion();

  if ( this.status === "answered" ) {
    message += chalk.cyan( this.selected.name );
  } else if ( this.status === "expanded" ) {
    var choicesStr = renderChoices(this.opt.choices, this.selectedKey);
    message += this.paginator.paginate(choicesStr, this.selectedKey);
    message += "\n  Answer: ";
  }

  message += this.rl.line;

  if (error) {
    message += '\n' + chalk.red('>> ') + error;
    cursor++;
  }

  if (hint) {
    message += '\n' + chalk.cyan('>> ') + hint;
    cursor++;
  }

  this.screen.render(message, { cursor: cursor });
};


/**
 * Generate the prompt choices string
 * @return {String}  Choices string
 */

Prompt.prototype.getChoices = function() {
  var output = "";

  this.opt.choices.forEach(function( choice, i ) {
    output += "\n  ";

    if ( choice.type === "separator" ) {
      output += " " + choice;
      return;
    }

    var choiceStr = choice.key + ") " + choice.name;
    if ( this.selectedKey === choice.key ) {
      choiceStr = chalk.cyan( choiceStr );
    }
    output += choiceStr;
  }.bind(this));

  return output;
};


/**
 * When user press `enter` key
 */

Prompt.prototype.onSubmit = function( input ) {
  if ( input == null || input === "" ) {
    input = this.rawDefault;
  }

  var selected = this.opt.choices.where({ key : input.toLowerCase() })[0];

  if ( selected != null && selected.key === "h" ) {
    this.selectedKey = "";
    this.status = "expanded";
    this.render();
    return;
  }

  if ( selected != null ) {
    this.status = "answered";
    this.selected = selected;

    // Re-render prompt
    this.render();

    this.lineObs.dispose();
    this.keypressObs.dispose();
    this.screen.done();
    this.done( this.selected.value );
    return;
  }

  // Input is invalid
  this.render("Please enter a valid command");
};


/**
 * When user press a key
 */

Prompt.prototype.onKeypress = function( s, key ) {
  this.selectedKey = this.rl.line.toLowerCase();
  var selected = this.opt.choices.where({ key : this.selectedKey })[0];
  if ( this.status === "expanded" )  {
    this.render();
  } else {
    this.render(null, selected ? selected.name : null);
  }
};


/**
 * Validate the choices
 * @param {Array} choices
 */

Prompt.prototype.validateChoices = function( choices ) {
  var formatError;
  var errors = [];
  var keymap = {};
  choices.filter(Separator.exclude).map(function( choice ) {
    if ( !choice.key || choice.key.length !== 1 ) {
      formatError = true;
    }
    if ( keymap[choice.key] ) {
      errors.push(choice.key);
    }
    keymap[ choice.key ] = true;
    choice.key = String( choice.key ).toLowerCase();
  });

  if ( formatError ) {
    throw new Error("Format error: `key` param must be a single letter and is required.");
  }
  if ( keymap.h ) {
    throw new Error("Reserved key error: `key` param cannot be `h` - this value is reserved.");
  }
  if ( errors.length ) {
    throw new Error( "Duplicate key error: `key` param must be unique. Duplicates: " +
        _.uniq(errors).join(", ") );
  }
};

/**
 * Generate a string out of the choices keys
 * @param  {Array}  choices
 * @param  {Number} defaultIndex - the choice index to capitalize
 * @return {String} The rendered choices key string
 */
Prompt.prototype.generateChoicesString = function( choices, defaultIndex ) {
  var defIndex = 0;
  if ( _.isNumber(defaultIndex) && this.opt.choices.getChoice(defaultIndex) ) {
    defIndex = defaultIndex;
  }
  var defStr = this.opt.choices.pluck("key");
  this.rawDefault = defStr[ defIndex ];
  defStr[ defIndex ] = String( defStr[defIndex] ).toUpperCase();
  return defStr.join("");
};


/**
 * Function for rendering checkbox choices
 * @param  {String} pointer Selected key
 * @return {String}         Rendered content
 */

function renderChoices (choices, pointer) {
  var output = '';

  choices.forEach(function (choice, i) {
    output += '\n  ';

    if (choice.type === 'separator') {
      output += ' ' + choice;
      return;
    }

    var choiceStr = choice.key + ') ' + choice.name;
    if (pointer === choice.key) {
      choiceStr = chalk.cyan(choiceStr);
    }
    output += choiceStr;
  });

  return output;
}

},{"../objects/separator":511,"../utils/events":523,"../utils/paginator":524,"./base":512,"chalk":530,"lodash":541,"util":247}],516:[function(require,module,exports){
/**
 * `input` type prompt
 */

var _ = require("lodash");
var util = require("util");
var chalk = require("chalk");
var Base = require("./base");
var observe = require("../utils/events");


/**
 * Module exports
 */

module.exports = Prompt;


/**
 * Constructor
 */

function Prompt() {
  return Base.apply( this, arguments );
}
util.inherits( Prompt, Base );


/**
 * Start the Inquiry session
 * @param  {Function} cb      Callback when prompt is done
 * @return {this}
 */

Prompt.prototype._run = function( cb ) {
  this.done = cb;

  // Once user confirm (enter key)
  var events = observe(this.rl);
  var submit = events.line.map( this.filterInput.bind(this) );

  var validation = this.handleSubmitEvents( submit );
  validation.success.forEach( this.onEnd.bind(this) );
  validation.error.forEach( this.onError.bind(this) );

  events.keypress.takeUntil( validation.success ).forEach( this.onKeypress.bind(this) );

  // Init
  this.render();

  return this;
};


/**
 * Render the prompt to screen
 * @return {Prompt} self
 */

Prompt.prototype.render = function (error) {
  var cursor = 0;
  var message = this.getQuestion();

  if (this.status === 'answered') {
    message += chalk.cyan(this.answer);
  } else {
    message += this.rl.line;
  }

  if (error) {
    message += '\n' + chalk.red('>> ') + error;
    cursor++;
  }

  this.screen.render(message, { cursor: cursor });
};


/**
 * When user press `enter` key
 */

Prompt.prototype.filterInput = function( input ) {
  if ( !input ) {
    return this.opt.default != null ? this.opt.default : "";
  }
  return input;
};

Prompt.prototype.onEnd = function( state ) {
  this.filter( state.value, function( filteredValue ) {
    this.answer = filteredValue;
    this.status = "answered";

    // Re-render prompt
    this.render();

    this.screen.done();
    this.done( state.value );
  }.bind(this));
};

Prompt.prototype.onError = function( state ) {
  this.render(state.isValid);
};

/**
 * When user press a key
 */

Prompt.prototype.onKeypress = function() {
  this.render();
};

},{"../utils/events":523,"./base":512,"chalk":530,"lodash":541,"util":247}],517:[function(require,module,exports){
/**
 * `list` type prompt
 */

var _ = require("lodash");
var util = require("util");
var chalk = require("chalk");
var figures = require("figures");
var cliCursor = require("cli-cursor");
var Base = require("./base");
var observe = require("../utils/events");
var utils = require("../utils/readline");
var Paginator = require("../utils/paginator");


/**
 * Module exports
 */

module.exports = Prompt;


/**
 * Constructor
 */

function Prompt() {
  Base.apply( this, arguments );

  if (!this.opt.choices) {
    this.throwParamError("choices");
  }

  this.firstRender = true;
  this.selected = 0;

  var def = this.opt.default;

  // Default being a Number
  if ( _.isNumber(def) && def >= 0 && def < this.opt.choices.realLength ) {
    this.selected = def;
  }

  // Default being a String
  if ( _.isString(def) ) {
    this.selected = this.opt.choices.pluck("value").indexOf( def );
  }

  // Make sure no default is set (so it won't be printed)
  this.opt.default = null;

  this.paginator = new Paginator();
}
util.inherits( Prompt, Base );


/**
 * Start the Inquiry session
 * @param  {Function} cb      Callback when prompt is done
 * @return {this}
 */

Prompt.prototype._run = function( cb ) {
  this.done = cb;

  var events = observe(this.rl);
  events.normalizedUpKey.takeUntil( events.line ).forEach( this.onUpKey.bind(this) );
  events.normalizedDownKey.takeUntil( events.line ).forEach( this.onDownKey.bind(this) );
  events.numberKey.takeUntil( events.line ).forEach( this.onNumberKey.bind(this) );
  events.line.take(1).forEach( this.onSubmit.bind(this) );

  // Init the prompt
  cliCursor.hide();
  this.render();

  return this;
};


/**
 * Render the prompt to screen
 * @return {Prompt} self
 */

Prompt.prototype.render = function() {
  // Render question
  var message = this.getQuestion();

  if ( this.firstRender ) {
    message += chalk.dim( "(Use arrow keys)" );
  }

  // Render choices or answer depending on the state
  if ( this.status === "answered" ) {
    message += chalk.cyan( this.opt.choices.getChoice(this.selected).name );
  } else {
    var choicesStr = listRender(this.opt.choices, this.selected );
    message += "\n" + this.paginator.paginate(choicesStr, this.selected);
  }

  this.firstRender = false;

  this.screen.render(message);
};


/**
 * When user press `enter` key
 */

Prompt.prototype.onSubmit = function() {
  var choice = this.opt.choices.getChoice( this.selected );
  this.status = "answered";

  // Rerender prompt
  this.render();

  this.screen.done();
  cliCursor.show();
  this.done( choice.value );
};


/**
 * When user press a key
 */
Prompt.prototype.onUpKey = function() {
  var len = this.opt.choices.realLength;
  this.selected = (this.selected > 0) ? this.selected - 1 : len - 1;
  this.render();
};

Prompt.prototype.onDownKey = function() {
  var len = this.opt.choices.realLength;
  this.selected = (this.selected < len - 1) ? this.selected + 1 : 0;
  this.render();
};

Prompt.prototype.onNumberKey = function( input ) {
  if ( input <= this.opt.choices.realLength ) {
    this.selected = input - 1;
  }
  this.render();
};


/**
 * Function for rendering list choices
 * @param  {Number} pointer Position of the pointer
 * @return {String}         Rendered content
 */
 function listRender(choices, pointer) {
  var output = '';
  var separatorOffset = 0;

  choices.forEach(function (choice, i) {
    if (choice.type === 'separator') {
      separatorOffset++;
      output += '  ' + choice + '\n';
      return;
    }

    var isSelected = (i - separatorOffset === pointer);
    var line = (isSelected ? figures.pointer + ' ' : '  ') + choice.name;
    if (isSelected) {
      line = chalk.cyan(line);
    }
    output += line + ' \n';
  });

  return output.replace(/\n$/, '');
}

},{"../utils/events":523,"../utils/paginator":524,"../utils/readline":525,"./base":512,"chalk":530,"cli-cursor":535,"figures":540,"lodash":541,"util":247}],518:[function(require,module,exports){
/**
 * `password` type prompt
 */

var _ = require("lodash");
var util = require("util");
var chalk = require("chalk");
var Base = require("./base");
var observe = require("../utils/events");

function mask(input) {
  input = String(input);
  if (input.length === 0) {
    return '';
  }

  return new Array(input.length + 1).join('*');
}

/**
 * Module exports
 */

module.exports = Prompt;


/**
 * Constructor
 */

function Prompt() {
  return Base.apply( this, arguments );
}
util.inherits( Prompt, Base );


/**
 * Start the Inquiry session
 * @param  {Function} cb      Callback when prompt is done
 * @return {this}
 */

Prompt.prototype._run = function( cb ) {
  this.done = cb;

  var events = observe(this.rl);

  // Once user confirm (enter key)
  var submit = events.line.map( this.filterInput.bind(this) );

  var validation = this.handleSubmitEvents( submit );
  validation.success.forEach( this.onEnd.bind(this) );
  validation.error.forEach( this.onError.bind(this) );

  events.keypress.takeUntil( validation.success ).forEach( this.onKeypress.bind(this) );

  // Init
  this.render();

  return this;
};


/**
 * Render the prompt to screen
 * @return {Prompt} self
 */

Prompt.prototype.render = function (error) {
  var cursor = 0;
  var message = this.getQuestion();

  if (this.status === 'answered') {
    message += chalk.cyan(mask(this.answer));
  } else {
    message += mask(this.rl.line || '');
  }

  if (error) {
    message += '\n' + chalk.red('>> ') + error;
    cursor++;
  }

  this.screen.render(message, { cursor: cursor });
};

/**
 * When user press `enter` key
 */

Prompt.prototype.filterInput = function( input ) {
  if ( !input ) {
    return this.opt.default != null ? this.opt.default : "";
  }
  return input;
};

Prompt.prototype.onEnd = function( state ) {
  this.status = "answered";
  this.answer = state.value;

  // Re-render prompt
  this.render();

  this.screen.done();
  this.done( state.value );
};

Prompt.prototype.onError = function( state ) {
  this.render(state.isValid);
  this.rl.output.unmute();
};

/**
 * When user type
 */

Prompt.prototype.onKeypress = function() {
  this.render();
};

},{"../utils/events":523,"./base":512,"chalk":530,"lodash":541,"util":247}],519:[function(require,module,exports){
/**
 * `rawlist` type prompt
 */

var _ = require("lodash");
var util = require("util");
var chalk = require("chalk");
var Base = require("./base");
var Separator = require("../objects/separator");
var observe = require("../utils/events");
var Paginator = require("../utils/paginator");


/**
 * Module exports
 */

module.exports = Prompt;


/**
 * Constructor
 */

function Prompt() {
  Base.apply( this, arguments );

  if (!this.opt.choices) {
    this.throwParamError("choices");
  }

  this.opt.validChoices = this.opt.choices.filter(Separator.exclude);

  this.selected = 0;
  this.rawDefault = 0;

  _.extend(this.opt, {
    validate: function( index ) {
      return this.opt.choices.getChoice( index ) != null;
    }.bind(this)
  });

  var def = this.opt.default;
  if ( _.isNumber(def) && def >= 0 && def < this.opt.choices.realLength ) {
    this.selected = this.rawDefault = def;
  }

  // Make sure no default is set (so it won't be printed)
  this.opt.default = null;

  this.paginator = new Paginator();
}
util.inherits( Prompt, Base );


/**
 * Start the Inquiry session
 * @param  {Function} cb      Callback when prompt is done
 * @return {this}
 */

Prompt.prototype._run = function( cb ) {
  this.done = cb;

  // Once user confirm (enter key)
  var events = observe(this.rl);
  var submit = events.line.map( this.filterInput.bind(this) );

  var validation = this.handleSubmitEvents( submit );
  validation.success.forEach( this.onEnd.bind(this) );
  validation.error.forEach( this.onError.bind(this) );

  events.keypress.takeUntil( validation.success ).forEach( this.onKeypress.bind(this) );

  // Init the prompt
  this.render();

  return this;
};


/**
 * Render the prompt to screen
 * @return {Prompt} self
 */

Prompt.prototype.render = function (error) {
  // Render question
  var cursor = 0;
  var message = this.getQuestion();

  if ( this.status === "answered" ) {
    message += chalk.cyan(this.opt.choices.getChoice(this.selected).name);
  } else {
    var choicesStr = renderChoices(this.opt.choices, this.selected);
    message += this.paginator.paginate(choicesStr, this.selected);
    message += "\n  Answer: ";
  }

  message += this.rl.line;

  if (error) {
    message += '\n' + chalk.red('>> ') + error;
    cursor++;
  }

  this.screen.render(message, { cursor: cursor });
};

/**
 * When user press `enter` key
 */

Prompt.prototype.filterInput = function( input ) {
  if ( input == null || input === "" ) {
    return this.rawDefault;
  } else {
    return input - 1;
  }
};

Prompt.prototype.onEnd = function( state ) {
  this.status = "answered";
  this.selected = state.value;

  var selectedChoice = this.opt.choices.getChoice( this.selected );

  // Re-render prompt
  this.render();

  this.screen.done();
  this.done( selectedChoice.value );
};

Prompt.prototype.onError = function() {
  this.render("Please enter a valid index");
};

/**
 * When user press a key
 */

Prompt.prototype.onKeypress = function() {
  var index = this.rl.line.length ? Number(this.rl.line) - 1 : 0;

  if ( this.opt.choices.getChoice(index) ) {
    this.selected = index;
  } else {
    this.selected = undefined;
  }

  this.render();
};


/**
 * Function for rendering list choices
 * @param  {Number} pointer Position of the pointer
 * @return {String}         Rendered content
 */

function renderChoices(choices, pointer) {
  var output = '';
  var separatorOffset = 0;

  choices.forEach(function (choice, i) {
    output += '\n  ';

    if (choice.type === 'separator') {
      separatorOffset++;
      output += ' ' + choice;
      return;
    }

    var index = i - separatorOffset;
    var display = (index + 1) + ') ' + choice.name;
    if (index === pointer) {
      display = chalk.cyan( display );
    }
    output += display;
  });

  return output;
}

},{"../objects/separator":511,"../utils/events":523,"../utils/paginator":524,"./base":512,"chalk":530,"lodash":541,"util":247}],520:[function(require,module,exports){
(function (process){
'use strict';
var _ = require('lodash');
var readlineFacade = require('readline2');


/**
 * Base interface class other can inherits from
 */

var UI = module.exports = function (opt) {
  // Instantiate the Readline interface
  // @Note: Don't reassign if already present (allow test to override the Stream)
  if (!this.rl) {
    this.rl = readlineFacade.createInterface(_.extend({
      terminal: true
    }, opt));
  }
  this.rl.resume();

  this.onForceClose = this.onForceClose.bind(this);

  // Make sure new prompt start on a newline when closing
  this.rl.on('SIGINT', this.onForceClose);
  process.on('exit', this.onForceClose);
};


/**
 * Handle the ^C exit
 * @return {null}
 */

UI.prototype.onForceClose = function () {
  this.close();
  console.log('\n'); // Line return
};


/**
 * Close the interface and cleanup listeners
 */

UI.prototype.close = function () {
  // Remove events listeners
  this.rl.removeListener('SIGINT', this.onForceClose);
  process.removeListener('exit', this.onForceClose);

  // Restore prompt functionnalities
  this.rl.output.unmute();

  // Close the readline
  this.rl.output.end();
  this.rl.pause();
  this.rl.close();
  this.rl = null;
};

}).call(this,require('_process'))
},{"_process":215,"lodash":541,"readline2":542}],521:[function(require,module,exports){
/**
 * Sticky bottom bar user interface
 */

var util = require("util");
var through = require("through");
var Base = require("./baseUI");
var rlUtils = require("../utils/readline");
var _ = require("lodash");


/**
 * Module exports
 */

module.exports = Prompt;

/**
 * Constructor
 */

function Prompt( opt ) {
  opt || (opt = {});

  Base.apply( this, arguments );

  this.log = through( this.writeLog.bind(this) );
  this.bottomBar = opt.bottomBar || "";
  this.render();
}
util.inherits( Prompt, Base );


/**
 * Render the prompt to screen
 * @return {Prompt} self
 */

Prompt.prototype.render = function() {
  this.write(this.bottomBar);
  return this;
};


/**
 * Update the bottom bar content and rerender
 * @param  {String} bottomBar Bottom bar content
 * @return {Prompt}           self
 */

Prompt.prototype.updateBottomBar = function( bottomBar ) {
  this.bottomBar = bottomBar;
  rlUtils.clearLine(this.rl, 1);
  return this.render();
};


/**
 * Rerender the prompt
 * @return {Prompt} self
 */

Prompt.prototype.writeLog = function( data ) {
  rlUtils.clearLine(this.rl, 1);
  this.rl.output.write(this.enforceLF(data.toString()));
  return this.render();
};


/**
 * Make sure line end on a line feed
 * @param  {String} str Input string
 * @return {String}     The input string with a final line feed
 */

Prompt.prototype.enforceLF = function( str ) {
  return str.match(/[\r\n]$/) ? str : str + "\n";
};

/**
 * Helper for writing message in Prompt
 * @param {Prompt} prompt  - The Prompt object that extends tty
 * @param {String} message - The message to be output
 */
Prompt.prototype.write = function (message) {
  var msgLines = message.split(/\n/);
  this.height = msgLines.length;

  // Write message to screen and setPrompt to control backspace
  this.rl.setPrompt( _.last(msgLines) );

  if ( this.rl.output.rows === 0 && this.rl.output.columns === 0 ) {
    /* When it's a tty through serial port there's no terminal info and the render will malfunction,
       so we need enforce the cursor to locate to the leftmost position for rendering. */
    rlUtils.left( this.rl, message.length + this.rl.line.length );
  }
  this.rl.output.write( message );
};

},{"../utils/readline":525,"./baseUI":520,"lodash":541,"through":553,"util":247}],522:[function(require,module,exports){
'use strict';
var _ = require('lodash');
var rx = require('rx-lite');
var util = require('util');
var runAsync = require('run-async');
var utils = require('../utils/utils');
var Base = require('./baseUI');


/**
 * Base interface class other can inherits from
 */

var PromptUI = module.exports = function (prompts, opt) {
  Base.call(this, opt);
  this.prompts = prompts;
};
util.inherits(PromptUI, Base);

PromptUI.prototype.run = function (questions, allDone) {
  // Keep global reference to the answers
  this.answers = {};
  this.completed = allDone;

  // Make sure questions is an array.
  if (_.isPlainObject(questions)) {
    questions = [questions];
  }

  // Create an observable, unless we received one as parameter.
  // Note: As this is a public interface, we cannot do an instanceof check as we won't
  // be using the exact same object in memory.
  var obs = _.isArray(questions) ? rx.Observable.from(questions) : questions;

  this.process = obs
    .concatMap(this.processQuestion.bind(this))
    .publish(); // `publish` creates a hot Observable. It prevents duplicating prompts.

  this.process.subscribe(
    _.noop,
    function (err) { throw err; },
    this.onCompletion.bind(this)
  );

  return this.process.connect();
};


/**
 * Once all prompt are over
 */

PromptUI.prototype.onCompletion = function () {
  this.close();

  if (_.isFunction(this.completed)) {
    this.completed(this.answers);
  }
};

PromptUI.prototype.processQuestion = function (question) {
  return rx.Observable.defer(function () {
    var obs = rx.Observable.create(function (obs) {
      obs.onNext(question);
      obs.onCompleted();
    });

    return obs
      .concatMap(this.setDefaultType.bind(this))
      .concatMap(this.filterIfRunnable.bind(this))
      .concatMap(utils.fetchAsyncQuestionProperty.bind(null, question, 'message', this.answers))
      .concatMap(utils.fetchAsyncQuestionProperty.bind(null, question, 'default', this.answers))
      .concatMap(utils.fetchAsyncQuestionProperty.bind(null, question, 'choices', this.answers))
      .concatMap(this.fetchAnswer.bind(this));
  }.bind(this));
};

PromptUI.prototype.fetchAnswer = function (question) {
  var Prompt = this.prompts[question.type];
  var prompt = new Prompt(question, this.rl, this.answers);
  var answers = this.answers;
  return utils.createObservableFromAsync(function () {
    var done = this.async();
    prompt.run(function (answer) {
      answers[question.name] = answer;
      done({ name: question.name, answer: answer });
    });
  });
};

PromptUI.prototype.setDefaultType = function (question) {
  // Default type to input
  if (!this.prompts[question.type]) {
    question.type = 'input';
  }
  return rx.Observable.defer(function () {
    return rx.Observable.return(question);
  });
};

PromptUI.prototype.filterIfRunnable = function (question) {
  if (question.when == null) {
    return rx.Observable.return(question);
  }

  var handleResult = function (obs, shouldRun) {
    if (shouldRun) {
      obs.onNext(question);
    }
    obs.onCompleted();
  };

  var answers = this.answers;
  return rx.Observable.defer(function () {
    return rx.Observable.create(function (obs) {
      if (_.isBoolean(question.when)) {
        handleResult(obs, question.when);
        return;
      }

      runAsync(question.when, function (shouldRun) {
        handleResult(obs, shouldRun);
      }, answers);
    });
  });
};

},{"../utils/utils":527,"./baseUI":520,"lodash":541,"run-async":548,"rx-lite":551,"util":247}],523:[function(require,module,exports){
'use strict';
var rx = require('rx-lite');

function normalizeKeypressEvents(value, key) {
  return { value: value, key: key || {} };
}

module.exports = function (rl) {
  var keypress = rx.Observable.fromEvent(rl.input, 'keypress', normalizeKeypressEvents)
    .filter(function (e) {
      // Ignore `enter` key. On the readline, we only care about the `line` event.
      return e.key.name !== 'enter' && e.key.name !== 'return';
    });

  return {
    line: rx.Observable.fromEvent(rl, 'line'),
    keypress: keypress,

    normalizedUpKey: keypress.filter(function (e) {
      return e.key.name === 'up' || e.key.name === 'k';
    }).share(),

    normalizedDownKey: keypress.filter(function (e) {
      return e.key.name === 'down' || e.key.name === 'j';
    }).share(),

    numberKey: keypress.filter(function (e) {
      return e.value && '123456789'.indexOf(e.value) >= 0;
    }).map(function (e) {
      return Number(e.value);
    }).share(),

    spaceKey: keypress.filter(function (e) {
      return e.key && e.key.name === 'space';
    }).share()
  };
};

},{"rx-lite":551}],524:[function(require,module,exports){
'use strict';

var _ = require('lodash');
var chalk = require('chalk');


/**
 * The paginator keep trakcs of a pointer index in a list and return
 * a subset of the choices if the list is too long.
 */

var Paginator = module.exports = function () {
  this.pointer = 0;
  this.lastIndex = 0;
};

Paginator.prototype.paginate = function (output, active) {
  var pageSize = 7;
  var lines = output.split('\n');

  // Make sure there's enough lines to paginate
  if (lines.length <= pageSize + 2) {
    return output;
  }

  // Move the pointer only when the user go down and limit it to 3
  if (this.pointer < 3 && this.lastIndex < active && active - this.lastIndex < 9) {
    this.pointer = Math.min(3, this.pointer + active - this.lastIndex);
  }
  this.lastIndex = active;

  // Duplicate the lines so it give an infinite list look
  var infinite = _.flatten([lines, lines, lines]);
  var topIndex = Math.max(0, active + lines.length - this.pointer);

  var section = infinite.splice(topIndex, pageSize).join('\n');
  return section + '\n' + chalk.dim('(Move up and down to reveal more choices)');
};

},{"chalk":530,"lodash":541}],525:[function(require,module,exports){
'use strict';
var ansiEscapes = require('ansi-escapes');

/**
 * Move cursor left by `x`
 * @param  {Readline} rl - Readline instance
 * @param  {Number}   x  - How far to go left (default to 1)
 */

exports.left = function(rl, x) {
  rl.output.write(ansiEscapes.cursorBackward(x));
};

/**
 * Move cursor right by `x`
 * @param  {Readline} rl - Readline instance
 * @param  {Number}   x  - How far to go left (default to 1)
 */

exports.right = function(rl, x) {
  rl.output.write(ansiEscapes.cursorForward(x));
};

/**
 * Move cursor up by `x`
 * @param  {Readline} rl - Readline instance
 * @param  {Number}   x  - How far to go up (default to 1)
 */

exports.up = function (rl, x) {
  rl.output.write(ansiEscapes.cursorUp(x));
};

/**
 * Move cursor down by `x`
 * @param  {Readline} rl - Readline instance
 * @param  {Number}   x  - How far to go down (default to 1)
 */

exports.down = function (rl, x) {
  rl.output.write(ansiEscapes.cursorDown(x));
};

/**
 * Clear current line
 * @param  {Readline} rl  - Readline instance
 * @param  {Number}   len - number of line to delete
 */
exports.clearLine = function (rl, len) {
  rl.output.write(ansiEscapes.eraseLines(len));
};

},{"ansi-escapes":528}],526:[function(require,module,exports){
'use strict';
var _ = require('lodash');
var util = require('./readline');
var readline = require('readline');
var cliWidth = require('cli-width');
var stripAnsi = require('strip-ansi');


var ScreenManager = module.exports = function (rl) {
  // These variables are keeping information to allow correct prompt re-rendering
  this.height = 0;
  this.extraLinesUnderPrompt = 0;

  this.rl = rl;
};

ScreenManager.prototype.render = function (content, opt) {
  opt = _.extend({ cursor: 0 }, opt || {});
  var cursorPos = this.rl._getCursorPos();

  this.rl.output.unmute();
  this.clean(this.extraLinesUnderPrompt);

  /**
   * Write message to screen and setPrompt to control backspace
   */

  var lines = content.split(/\n/);
  var promptLine = lines[lines.length - 1 - opt.cursor];
  var rawPromptLine = stripAnsi(promptLine);

  // Remove the rl.line from our prompt. We can't rely on the content of
  // rl.line (mainly because of the password prompt), so just rely on it's
  // length.
  var prompt = promptLine;
  if (this.rl.line.length) {
    prompt = prompt.slice(0, -this.rl.line.length);
  }
  this.rl.setPrompt(prompt);
  var rawPrompt = stripAnsi(prompt);

  // Manually insert an extra line if we're at the end of the line.
  // This prevent the cursor from appearing at the beginning of the
  // current line.
  if (rawPromptLine.length === cliWidth()) {
    lines.splice(lines.length, 0, ' ');
  }

  this.rl.output.write(lines.join('\n'));

  /**
   * Re-adjust the cursor at the correct position.
   */

  var breakedLines = breakLines(lines);
  var actualLines = _.flatten(breakedLines);

  var promptLineUpDiff = Math.floor(rawPromptLine.length / cliWidth()) - cursorPos.rows;
  if (opt.cursor + promptLineUpDiff > 0) {
    util.up(this.rl, opt.cursor + promptLineUpDiff);
  }

  // Reset cursor at the beginning of the line
  util.left(this.rl, stripAnsi(_.last(actualLines)).length);

  var rightPos = cursorPos.cols;

  if (cursorPos.rows === 0) {
    rightPos = Math.max(rightPos, rawPrompt.length);
  }

  // rightPos should never be further than the total line content size.
  // If we changed the prompt and reset the rl.line, we want to reset our
  // cursor at the beginning of the prompt.
  if (rightPos > rawPromptLine.length && !this.rl.line) {
    rightPos = rawPrompt.length;
  }

  util.right(this.rl, rightPos);

  /**
   * Set up state for next re-rendering
   */

  var bottomSection = breakedLines.slice(breakedLines.length - opt.cursor - promptLineUpDiff);
  this.extraLinesUnderPrompt = _.flatten(bottomSection).length;
  this.height = actualLines.length;

  this.rl.output.mute();
};

ScreenManager.prototype.clean = function (extraLines) {
  if (extraLines > 0) {
    util.down(this.rl, extraLines);
  }
  util.clearLine(this.rl, this.height);
};

ScreenManager.prototype.done = function () {
  this.rl.setPrompt('');
  this.rl.output.unmute();
  this.rl.output.write('\n');
};

function breakLines(lines) {
  // Break lines who're longuer than the cli width so we can gracefully handle line
  // returns.
  var regex = new RegExp('.{1,' + cliWidth() + '}', 'g');
  return lines.map(function (line) {
    return stripAnsi(line).match(regex);
  });
}

},{"./readline":525,"cli-width":539,"lodash":541,"readline":2,"strip-ansi":552}],527:[function(require,module,exports){
'use strict';
var _ = require('lodash');
var rx = require('rx-lite');
var runAsync = require('run-async');


/**
 * Create an oversable returning the result of a function runned in sync or async mode.
 * @param  {Function} func Function to run
 * @return {rx.Observable} Observable emitting when value is known
 */

exports.createObservableFromAsync = function (func) {
  return rx.Observable.defer(function () {
    return rx.Observable.create(function (obs) {
      runAsync(func, function (value) {
        obs.onNext(value);
        obs.onCompleted();
      });
    });
  });
};


/**
 * Resolve a question property value if it is passed as a function.
 * This method will overwrite the property on the question object with the received value.
 * @param  {Object} question - Question object
 * @param  {String} prop     - Property to fetch name
 * @param  {Object} answers  - Answers object
 * @...rest {Mixed} rest     - Arguments to pass to `func`
 * @return {rx.Obsersable}   - Observable emitting once value is known
 */

exports.fetchAsyncQuestionProperty = function (question, prop, answers) {
  if (!_.isFunction(question[prop])) {
    return rx.Observable.return(question);
  }

  return exports.createObservableFromAsync(function () {
    var done = this.async();
    runAsync(question[prop], function (value) {
      question[prop] = value;
      done(question);
    }, answers);
  });
};

},{"lodash":541,"run-async":548,"rx-lite":551}],528:[function(require,module,exports){
'use strict';
var ESC = '\u001b[';
var x = module.exports;

x.cursorTo = function (x, y) {
	if (arguments.length === 0) {
		return ESC + 'H';
	}

	if (arguments.length === 1) {
		return ESC + (x + 1) + 'G';
	}

	return ESC + (y + 1) + ';' + (x + 1) + 'H';
};

x.cursorMove = function (x, y) {
	var ret = '';

	if (x < 0) {
		ret += ESC + (-x) + 'D';
	} else if (x > 0) {
		ret += ESC + x + 'C';
	}

	if (y < 0) {
		ret += ESC + (-y) + 'A';
	} else if (y > 0) {
		ret += ESC + y + 'B';
	}

	return ret;
};

x.cursorUp = function (count) {
	return ESC + (count || 1) + 'A';
};

x.cursorDown = function (count) {
	return ESC + (count || 1) + 'B';
};

x.cursorForward = function (count) {
	return ESC + (count || 1) + 'C';
};

x.cursorBackward = function (count) {
	return ESC + (count || 1) + 'D';
};

x.cursorLeft = ESC + '1000D';
x.cursorSavePosition = ESC + 's';
x.cursorRestorePosition = ESC + 'u';
x.cursorGetPosition = ESC + '6n';
x.cursorNextLine = ESC + 'E';
x.cursorPrevLine = ESC + 'F';
x.cursorHide = ESC + '?25l';
x.cursorShow = ESC + '?25h';

x.eraseLines = function (count) {
	var clear = '';

	for (var i = 0; i < count; i++) {
		clear += x.cursorLeft + x.eraseEndLine + (i < count - 1 ? x.cursorUp() : '');
	}

	return clear;
};

x.eraseEndLine = ESC + 'K';
x.eraseStartLine = ESC + '1K';
x.eraseLine = ESC + '2K';
x.eraseDown = ESC + 'J';
x.eraseUp = ESC + '1J';
x.eraseScreen = ESC + '2J';
x.scrollUp = ESC + 'S';
x.scrollDown = ESC + 'T';

x.beep = '\u0007';

},{}],529:[function(require,module,exports){
arguments[4][264][0].apply(exports,arguments)
},{"dup":264}],530:[function(require,module,exports){
(function (process){
'use strict';
var escapeStringRegexp = require('escape-string-regexp');
var ansiStyles = require('ansi-styles');
var stripAnsi = require('strip-ansi');
var hasAnsi = require('has-ansi');
var supportsColor = require('supports-color');
var defineProps = Object.defineProperties;
var isSimpleWindowsTerm = process.platform === 'win32' && !/^xterm/i.test(process.env.TERM);

function Chalk(options) {
	// detect mode if not set manually
	this.enabled = !options || options.enabled === undefined ? supportsColor : options.enabled;
}

// use bright blue on Windows as the normal blue color is illegible
if (isSimpleWindowsTerm) {
	ansiStyles.blue.open = '\u001b[94m';
}

var styles = (function () {
	var ret = {};

	Object.keys(ansiStyles).forEach(function (key) {
		ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');

		ret[key] = {
			get: function () {
				return build.call(this, this._styles.concat(key));
			}
		};
	});

	return ret;
})();

var proto = defineProps(function chalk() {}, styles);

function build(_styles) {
	var builder = function () {
		return applyStyle.apply(builder, arguments);
	};

	builder._styles = _styles;
	builder.enabled = this.enabled;
	// __proto__ is used because we must return a function, but there is
	// no way to create a function with a different prototype.
	/* eslint-disable no-proto */
	builder.__proto__ = proto;

	return builder;
}

function applyStyle() {
	// support varags, but simply cast to string in case there's only one arg
	var args = arguments;
	var argsLen = args.length;
	var str = argsLen !== 0 && String(arguments[0]);

	if (argsLen > 1) {
		// don't slice `arguments`, it prevents v8 optimizations
		for (var a = 1; a < argsLen; a++) {
			str += ' ' + args[a];
		}
	}

	if (!this.enabled || !str) {
		return str;
	}

	var nestedStyles = this._styles;
	var i = nestedStyles.length;

	// Turns out that on Windows dimmed gray text becomes invisible in cmd.exe,
	// see https://github.com/chalk/chalk/issues/58
	// If we're on Windows and we're dealing with a gray color, temporarily make 'dim' a noop.
	var originalDim = ansiStyles.dim.open;
	if (isSimpleWindowsTerm && (nestedStyles.indexOf('gray') !== -1 || nestedStyles.indexOf('grey') !== -1)) {
		ansiStyles.dim.open = '';
	}

	while (i--) {
		var code = ansiStyles[nestedStyles[i]];

		// Replace any instances already present with a re-opening code
		// otherwise only the part of the string until said closing code
		// will be colored, and the rest will simply be 'plain'.
		str = code.open + str.replace(code.closeRe, code.open) + code.close;
	}

	// Reset the original 'dim' if we changed it to work around the Windows dimmed gray issue.
	ansiStyles.dim.open = originalDim;

	return str;
}

function init() {
	var ret = {};

	Object.keys(styles).forEach(function (name) {
		ret[name] = {
			get: function () {
				return build.call(this, [name]);
			}
		};
	});

	return ret;
}

defineProps(Chalk.prototype, init());

module.exports = new Chalk();
module.exports.styles = ansiStyles;
module.exports.hasColor = hasAnsi;
module.exports.stripColor = stripAnsi;
module.exports.supportsColor = supportsColor;

}).call(this,require('_process'))
},{"_process":215,"ansi-styles":531,"escape-string-regexp":532,"has-ansi":533,"strip-ansi":552,"supports-color":534}],531:[function(require,module,exports){
'use strict';

function assembleStyles () {
	var styles = {
		modifiers: {
			reset: [0, 0],
			bold: [1, 22], // 21 isn't widely supported and 22 does the same thing
			dim: [2, 22],
			italic: [3, 23],
			underline: [4, 24],
			inverse: [7, 27],
			hidden: [8, 28],
			strikethrough: [9, 29]
		},
		colors: {
			black: [30, 39],
			red: [31, 39],
			green: [32, 39],
			yellow: [33, 39],
			blue: [34, 39],
			magenta: [35, 39],
			cyan: [36, 39],
			white: [37, 39],
			gray: [90, 39]
		},
		bgColors: {
			bgBlack: [40, 49],
			bgRed: [41, 49],
			bgGreen: [42, 49],
			bgYellow: [43, 49],
			bgBlue: [44, 49],
			bgMagenta: [45, 49],
			bgCyan: [46, 49],
			bgWhite: [47, 49]
		}
	};

	// fix humans
	styles.colors.grey = styles.colors.gray;

	Object.keys(styles).forEach(function (groupName) {
		var group = styles[groupName];

		Object.keys(group).forEach(function (styleName) {
			var style = group[styleName];

			styles[styleName] = group[styleName] = {
				open: '\u001b[' + style[0] + 'm',
				close: '\u001b[' + style[1] + 'm'
			};
		});

		Object.defineProperty(styles, groupName, {
			value: group,
			enumerable: false
		});
	});

	return styles;
}

Object.defineProperty(module, 'exports', {
	enumerable: true,
	get: assembleStyles
});

},{}],532:[function(require,module,exports){
'use strict';

var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;

module.exports = function (str) {
	if (typeof str !== 'string') {
		throw new TypeError('Expected a string');
	}

	return str.replace(matchOperatorsRe,  '\\$&');
};

},{}],533:[function(require,module,exports){
'use strict';
var ansiRegex = require('ansi-regex');
var re = new RegExp(ansiRegex().source); // remove the `g` flag
module.exports = re.test.bind(re);

},{"ansi-regex":529}],534:[function(require,module,exports){
(function (process){
'use strict';
var argv = process.argv;

var terminator = argv.indexOf('--');
var hasFlag = function (flag) {
	flag = '--' + flag;
	var pos = argv.indexOf(flag);
	return pos !== -1 && (terminator !== -1 ? pos < terminator : true);
};

module.exports = (function () {
	if ('FORCE_COLOR' in process.env) {
		return true;
	}

	if (hasFlag('no-color') ||
		hasFlag('no-colors') ||
		hasFlag('color=false')) {
		return false;
	}

	if (hasFlag('color') ||
		hasFlag('colors') ||
		hasFlag('color=true') ||
		hasFlag('color=always')) {
		return true;
	}

	if (process.stdout && !process.stdout.isTTY) {
		return false;
	}

	if (process.platform === 'win32') {
		return true;
	}

	if ('COLORTERM' in process.env) {
		return true;
	}

	if (process.env.TERM === 'dumb') {
		return false;
	}

	if (/^screen|^xterm|^vt100|color|ansi|cygwin|linux/i.test(process.env.TERM)) {
		return true;
	}

	return false;
})();

}).call(this,require('_process'))
},{"_process":215}],535:[function(require,module,exports){
(function (process){
'use strict';
var restoreCursor = require('restore-cursor');
var hidden = false;

exports.show = function () {
	hidden = false;
	process.stdout.write('\u001b[?25h');
};

exports.hide = function () {
	restoreCursor();
	hidden = true;
	process.stdout.write('\u001b[?25l');
};

exports.toggle = function (force) {
	if (force !== undefined) {
		hidden = force;
	}

	if (hidden) {
		exports.show();
	} else {
		exports.hide();
	}
};

}).call(this,require('_process'))
},{"_process":215,"restore-cursor":536}],536:[function(require,module,exports){
(function (process){
'use strict';
var onetime = require('onetime');
var exitHook = require('exit-hook');

module.exports = onetime(function () {
	exitHook(function () {
		process.stdout.write('\u001b[?25h');
	});
});

}).call(this,require('_process'))
},{"_process":215,"exit-hook":537,"onetime":538}],537:[function(require,module,exports){
(function (process){
'use strict';

var cbs = [];
var called = false;

function exit(exit, signal) {
	if (called) {
		return;
	}

	called = true;

	cbs.forEach(function (el) {
		el();
	});

	if (exit === true) {
		process.exit(128 + signal);
	}
};

module.exports = function (cb) {
	cbs.push(cb);

	if (cbs.length === 1) {
		process.once('exit', exit);
		process.once('SIGINT', exit.bind(null, true, 2));
		process.once('SIGTERM', exit.bind(null, true, 15));
	}
};

}).call(this,require('_process'))
},{"_process":215}],538:[function(require,module,exports){
'use strict';
module.exports = function (fn, errMsg) {
	if (typeof fn !== 'function') {
		throw new TypeError('Expected a function.');
	}

	var ret;
	var called = false;
	var fnName = fn.name || (/function ([^\(]+)/.exec(fn.toString()) || [])[1];

	return function () {
		if (called) {
			if (errMsg === true) {
				fnName = fnName ? fnName + '()' : 'Function';
				throw new Error(fnName + ' can only be called once.');
			}
			return ret;
		}
		called = true;
		ret = fn.apply(this, arguments);
		fn = null;
		return ret;
	};
};

},{}],539:[function(require,module,exports){
(function (process){
'use strict';

exports = module.exports = cliWidth;
exports.defaultWidth = 0;

function cliWidth() {
  if (process.stdout.getWindowSize) {
    return process.stdout.getWindowSize()[0];
  }
  else {
    var tty = require('tty');

    if (tty.getWindowSize) {
      return tty.getWindowSize()[1];
    }
    else {
      if (process.env.CLI_WIDTH) {
        var width = parseInt(process.env.CLI_WIDTH, 10);

        if (!isNaN(width)) {
          return width;
        }
      }

      return exports.defaultWidth;
    }
  }
};

}).call(this,require('_process'))
},{"_process":215,"tty":244}],540:[function(require,module,exports){
(function (process){
'use strict';
var platform = process.platform;

var main = {
	tick: '✔',
	cross: '✖',
	star: '★',
	square: '▇',
	squareSmall: '◻',
	squareSmallFilled: '◼',
	circle: '◯',
	circleFilled: '◉',
	circleDotted: '◌',
	circleDouble: '◎',
	circleCircle: 'ⓞ',
	circleCross: 'ⓧ',
	circlePipe: 'Ⓘ',
	circleQuestionMark: '?⃝',
	bullet: '●',
	dot: '․',
	line: '─',
	ellipsis: '…',
	pointer: '❯',
	pointerSmall: '›',
	info: 'ℹ',
	warning: '⚠',
	hamburger: '☰',
	smiley: '㋡',
	mustache: '෴',
	heart: '♥',
	arrowUp: '↑',
	arrowDown: '↓',
	arrowLeft: '←',
	arrowRight: '→',
	radioOn: '◉',
	radioOff: '◯',
	checkboxOn: '☒',
	checkboxOff: '☐',
	checkboxCircleOn: 'ⓧ',
	checkboxCircleOff: 'Ⓘ',
	questionMarkPrefix: '?⃝'
};

var win = {
	tick: '√',
	cross: '×',
	star: '*',
	square: '█',
	squareSmall: '[ ]',
	squareSmallFilled: '[█]',
	circle: '( )',
	circleFilled: '(*)',
	circleDotted: '( )',
	circleDouble: '( )',
	circleCircle: '(○)',
	circleCross: '(×)',
	circlePipe: '(│)',
	circleQuestionMark: '(?)',
	bullet: '*',
	dot: '.',
	line: '─',
	ellipsis: '...',
	pointer: '>',
	pointerSmall: '»',
	info: 'i',
	warning: '‼',
	hamburger: '≡',
	smiley: '☺',
	mustache: '┌─┐',
	heart: main.heart,
	arrowUp: main.arrowUp,
	arrowDown: main.arrowDown,
	arrowLeft: main.arrowLeft,
	arrowRight: main.arrowRight,
	radioOn: '(*)',
	radioOff: '( )',
	checkboxOn: '[×]',
	checkboxOff: '[ ]',
	checkboxCircleOn: '(×)',
	checkboxCircleOff: '( )',
	questionMarkPrefix: '？'
};

if (platform === 'linux') {
	// the main one doesn't look that good on Ubuntu
	main.questionMarkPrefix = '?';
}

module.exports = platform === 'win32' ? win : main;

}).call(this,require('_process'))
},{"_process":215}],541:[function(require,module,exports){
(function (global){
/**
 * @license
 * lodash 3.10.1 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern -d -o ./index.js`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
;(function() {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /** Used as the semantic version number. */
  var VERSION = '3.10.1';

  /** Used to compose bitmasks for wrapper metadata. */
  var BIND_FLAG = 1,
      BIND_KEY_FLAG = 2,
      CURRY_BOUND_FLAG = 4,
      CURRY_FLAG = 8,
      CURRY_RIGHT_FLAG = 16,
      PARTIAL_FLAG = 32,
      PARTIAL_RIGHT_FLAG = 64,
      ARY_FLAG = 128,
      REARG_FLAG = 256;

  /** Used as default options for `_.trunc`. */
  var DEFAULT_TRUNC_LENGTH = 30,
      DEFAULT_TRUNC_OMISSION = '...';

  /** Used to detect when a function becomes hot. */
  var HOT_COUNT = 150,
      HOT_SPAN = 16;

  /** Used as the size to enable large array optimizations. */
  var LARGE_ARRAY_SIZE = 200;

  /** Used to indicate the type of lazy iteratees. */
  var LAZY_FILTER_FLAG = 1,
      LAZY_MAP_FLAG = 2;

  /** Used as the `TypeError` message for "Functions" methods. */
  var FUNC_ERROR_TEXT = 'Expected a function';

  /** Used as the internal argument placeholder. */
  var PLACEHOLDER = '__lodash_placeholder__';

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      errorTag = '[object Error]',
      funcTag = '[object Function]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      objectTag = '[object Object]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      weakMapTag = '[object WeakMap]';

  var arrayBufferTag = '[object ArrayBuffer]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /** Used to match empty string literals in compiled template source. */
  var reEmptyStringLeading = /\b__p \+= '';/g,
      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;

  /** Used to match HTML entities and HTML characters. */
  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g,
      reUnescapedHtml = /[&<>"'`]/g,
      reHasEscapedHtml = RegExp(reEscapedHtml.source),
      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);

  /** Used to match template delimiters. */
  var reEscape = /<%-([\s\S]+?)%>/g,
      reEvaluate = /<%([\s\S]+?)%>/g,
      reInterpolate = /<%=([\s\S]+?)%>/g;

  /** Used to match property names within property paths. */
  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/,
      reIsPlainProp = /^\w*$/,
      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\n\\]|\\.)*?)\2)\]/g;

  /**
   * Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns)
   * and those outlined by [`EscapeRegExpPattern`](http://ecma-international.org/ecma-262/6.0/#sec-escaperegexppattern).
   */
  var reRegExpChars = /^[:!,]|[\\^$.*+?()[\]{}|\/]|(^[0-9a-fA-Fnrtuvx])|([\n\r\u2028\u2029])/g,
      reHasRegExpChars = RegExp(reRegExpChars.source);

  /** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */
  var reComboMark = /[\u0300-\u036f\ufe20-\ufe23]/g;

  /** Used to match backslashes in property paths. */
  var reEscapeChar = /\\(\\)?/g;

  /** Used to match [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components). */
  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;

  /** Used to match `RegExp` flags from their coerced string values. */
  var reFlags = /\w*$/;

  /** Used to detect hexadecimal string values. */
  var reHasHexPrefix = /^0[xX]/;

  /** Used to detect host constructors (Safari > 5). */
  var reIsHostCtor = /^\[object .+?Constructor\]$/;

  /** Used to detect unsigned integer values. */
  var reIsUint = /^\d+$/;

  /** Used to match latin-1 supplementary letters (excluding mathematical operators). */
  var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g;

  /** Used to ensure capturing order of template delimiters. */
  var reNoMatch = /($^)/;

  /** Used to match unescaped characters in compiled string literals. */
  var reUnescapedString = /['\n\r\u2028\u2029\\]/g;

  /** Used to match words to create compound words. */
  var reWords = (function() {
    var upper = '[A-Z\\xc0-\\xd6\\xd8-\\xde]',
        lower = '[a-z\\xdf-\\xf6\\xf8-\\xff]+';

    return RegExp(upper + '+(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+', 'g');
  }());

  /** Used to assign default `context` object properties. */
  var contextProps = [
    'Array', 'ArrayBuffer', 'Date', 'Error', 'Float32Array', 'Float64Array',
    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Math', 'Number',
    'Object', 'RegExp', 'Set', 'String', '_', 'clearTimeout', 'isFinite',
    'parseFloat', 'parseInt', 'setTimeout', 'TypeError', 'Uint8Array',
    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap'
  ];

  /** Used to make template sourceURLs easier to identify. */
  var templateCounter = -1;

  /** Used to identify `toStringTag` values of typed arrays. */
  var typedArrayTags = {};
  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
  typedArrayTags[uint32Tag] = true;
  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
  typedArrayTags[dateTag] = typedArrayTags[errorTag] =
  typedArrayTags[funcTag] = typedArrayTags[mapTag] =
  typedArrayTags[numberTag] = typedArrayTags[objectTag] =
  typedArrayTags[regexpTag] = typedArrayTags[setTag] =
  typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;

  /** Used to identify `toStringTag` values supported by `_.clone`. */
  var cloneableTags = {};
  cloneableTags[argsTag] = cloneableTags[arrayTag] =
  cloneableTags[arrayBufferTag] = cloneableTags[boolTag] =
  cloneableTags[dateTag] = cloneableTags[float32Tag] =
  cloneableTags[float64Tag] = cloneableTags[int8Tag] =
  cloneableTags[int16Tag] = cloneableTags[int32Tag] =
  cloneableTags[numberTag] = cloneableTags[objectTag] =
  cloneableTags[regexpTag] = cloneableTags[stringTag] =
  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
  cloneableTags[errorTag] = cloneableTags[funcTag] =
  cloneableTags[mapTag] = cloneableTags[setTag] =
  cloneableTags[weakMapTag] = false;

  /** Used to map latin-1 supplementary letters to basic latin letters. */
  var deburredLetters = {
    '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
    '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
    '\xc7': 'C',  '\xe7': 'c',
    '\xd0': 'D',  '\xf0': 'd',
    '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
    '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
    '\xcC': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
    '\xeC': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
    '\xd1': 'N',  '\xf1': 'n',
    '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
    '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
    '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
    '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
    '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
    '\xc6': 'Ae', '\xe6': 'ae',
    '\xde': 'Th', '\xfe': 'th',
    '\xdf': 'ss'
  };

  /** Used to map characters to HTML entities. */
  var htmlEscapes = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#39;',
    '`': '&#96;'
  };

  /** Used to map HTML entities to characters. */
  var htmlUnescapes = {
    '&amp;': '&',
    '&lt;': '<',
    '&gt;': '>',
    '&quot;': '"',
    '&#39;': "'",
    '&#96;': '`'
  };

  /** Used to determine if values are of the language type `Object`. */
  var objectTypes = {
    'function': true,
    'object': true
  };

  /** Used to escape characters for inclusion in compiled regexes. */
  var regexpEscapes = {
    '0': 'x30', '1': 'x31', '2': 'x32', '3': 'x33', '4': 'x34',
    '5': 'x35', '6': 'x36', '7': 'x37', '8': 'x38', '9': 'x39',
    'A': 'x41', 'B': 'x42', 'C': 'x43', 'D': 'x44', 'E': 'x45', 'F': 'x46',
    'a': 'x61', 'b': 'x62', 'c': 'x63', 'd': 'x64', 'e': 'x65', 'f': 'x66',
    'n': 'x6e', 'r': 'x72', 't': 'x74', 'u': 'x75', 'v': 'x76', 'x': 'x78'
  };

  /** Used to escape characters for inclusion in compiled string literals. */
  var stringEscapes = {
    '\\': '\\',
    "'": "'",
    '\n': 'n',
    '\r': 'r',
    '\u2028': 'u2028',
    '\u2029': 'u2029'
  };

  /** Detect free variable `exports`. */
  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;

  /** Detect free variable `module`. */
  var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;

  /** Detect free variable `global` from Node.js. */
  var freeGlobal = freeExports && freeModule && typeof global == 'object' && global && global.Object && global;

  /** Detect free variable `self`. */
  var freeSelf = objectTypes[typeof self] && self && self.Object && self;

  /** Detect free variable `window`. */
  var freeWindow = objectTypes[typeof window] && window && window.Object && window;

  /** Detect the popular CommonJS extension `module.exports`. */
  var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;

  /**
   * Used as a reference to the global object.
   *
   * The `this` value is used if it's the global object to avoid Greasemonkey's
   * restricted `window` object, otherwise the `window` object is used.
   */
  var root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || freeSelf || this;

  /*--------------------------------------------------------------------------*/

  /**
   * The base implementation of `compareAscending` which compares values and
   * sorts them in ascending order without guaranteeing a stable sort.
   *
   * @private
   * @param {*} value The value to compare.
   * @param {*} other The other value to compare.
   * @returns {number} Returns the sort order indicator for `value`.
   */
  function baseCompareAscending(value, other) {
    if (value !== other) {
      var valIsNull = value === null,
          valIsUndef = value === undefined,
          valIsReflexive = value === value;

      var othIsNull = other === null,
          othIsUndef = other === undefined,
          othIsReflexive = other === other;

      if ((value > other && !othIsNull) || !valIsReflexive ||
          (valIsNull && !othIsUndef && othIsReflexive) ||
          (valIsUndef && othIsReflexive)) {
        return 1;
      }
      if ((value < other && !valIsNull) || !othIsReflexive ||
          (othIsNull && !valIsUndef && valIsReflexive) ||
          (othIsUndef && valIsReflexive)) {
        return -1;
      }
    }
    return 0;
  }

  /**
   * The base implementation of `_.findIndex` and `_.findLastIndex` without
   * support for callback shorthands and `this` binding.
   *
   * @private
   * @param {Array} array The array to search.
   * @param {Function} predicate The function invoked per iteration.
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseFindIndex(array, predicate, fromRight) {
    var length = array.length,
        index = fromRight ? length : -1;

    while ((fromRight ? index-- : ++index < length)) {
      if (predicate(array[index], index, array)) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.indexOf` without support for binary searches.
   *
   * @private
   * @param {Array} array The array to search.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOf(array, value, fromIndex) {
    if (value !== value) {
      return indexOfNaN(array, fromIndex);
    }
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (array[index] === value) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.isFunction` without support for environments
   * with incorrect `typeof` results.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
   */
  function baseIsFunction(value) {
    // Avoid a Chakra JIT bug in compatibility modes of IE 11.
    // See https://github.com/jashkenas/underscore/issues/1621 for more details.
    return typeof value == 'function' || false;
  }

  /**
   * Converts `value` to a string if it's not one. An empty string is returned
   * for `null` or `undefined` values.
   *
   * @private
   * @param {*} value The value to process.
   * @returns {string} Returns the string.
   */
  function baseToString(value) {
    return value == null ? '' : (value + '');
  }

  /**
   * Used by `_.trim` and `_.trimLeft` to get the index of the first character
   * of `string` that is not found in `chars`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @param {string} chars The characters to find.
   * @returns {number} Returns the index of the first character not found in `chars`.
   */
  function charsLeftIndex(string, chars) {
    var index = -1,
        length = string.length;

    while (++index < length && chars.indexOf(string.charAt(index)) > -1) {}
    return index;
  }

  /**
   * Used by `_.trim` and `_.trimRight` to get the index of the last character
   * of `string` that is not found in `chars`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @param {string} chars The characters to find.
   * @returns {number} Returns the index of the last character not found in `chars`.
   */
  function charsRightIndex(string, chars) {
    var index = string.length;

    while (index-- && chars.indexOf(string.charAt(index)) > -1) {}
    return index;
  }

  /**
   * Used by `_.sortBy` to compare transformed elements of a collection and stable
   * sort them in ascending order.
   *
   * @private
   * @param {Object} object The object to compare.
   * @param {Object} other The other object to compare.
   * @returns {number} Returns the sort order indicator for `object`.
   */
  function compareAscending(object, other) {
    return baseCompareAscending(object.criteria, other.criteria) || (object.index - other.index);
  }

  /**
   * Used by `_.sortByOrder` to compare multiple properties of a value to another
   * and stable sort them.
   *
   * If `orders` is unspecified, all valuess are sorted in ascending order. Otherwise,
   * a value is sorted in ascending order if its corresponding order is "asc", and
   * descending if "desc".
   *
   * @private
   * @param {Object} object The object to compare.
   * @param {Object} other The other object to compare.
   * @param {boolean[]} orders The order to sort by for each property.
   * @returns {number} Returns the sort order indicator for `object`.
   */
  function compareMultiple(object, other, orders) {
    var index = -1,
        objCriteria = object.criteria,
        othCriteria = other.criteria,
        length = objCriteria.length,
        ordersLength = orders.length;

    while (++index < length) {
      var result = baseCompareAscending(objCriteria[index], othCriteria[index]);
      if (result) {
        if (index >= ordersLength) {
          return result;
        }
        var order = orders[index];
        return result * ((order === 'asc' || order === true) ? 1 : -1);
      }
    }
    // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
    // that causes it, under certain circumstances, to provide the same value for
    // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
    // for more details.
    //
    // This also ensures a stable sort in V8 and other engines.
    // See https://code.google.com/p/v8/issues/detail?id=90 for more details.
    return object.index - other.index;
  }

  /**
   * Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters.
   *
   * @private
   * @param {string} letter The matched letter to deburr.
   * @returns {string} Returns the deburred letter.
   */
  function deburrLetter(letter) {
    return deburredLetters[letter];
  }

  /**
   * Used by `_.escape` to convert characters to HTML entities.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  function escapeHtmlChar(chr) {
    return htmlEscapes[chr];
  }

  /**
   * Used by `_.escapeRegExp` to escape characters for inclusion in compiled regexes.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @param {string} leadingChar The capture group for a leading character.
   * @param {string} whitespaceChar The capture group for a whitespace character.
   * @returns {string} Returns the escaped character.
   */
  function escapeRegExpChar(chr, leadingChar, whitespaceChar) {
    if (leadingChar) {
      chr = regexpEscapes[chr];
    } else if (whitespaceChar) {
      chr = stringEscapes[chr];
    }
    return '\\' + chr;
  }

  /**
   * Used by `_.template` to escape characters for inclusion in compiled string literals.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  function escapeStringChar(chr) {
    return '\\' + stringEscapes[chr];
  }

  /**
   * Gets the index at which the first occurrence of `NaN` is found in `array`.
   *
   * @private
   * @param {Array} array The array to search.
   * @param {number} fromIndex The index to search from.
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {number} Returns the index of the matched `NaN`, else `-1`.
   */
  function indexOfNaN(array, fromIndex, fromRight) {
    var length = array.length,
        index = fromIndex + (fromRight ? 0 : -1);

    while ((fromRight ? index-- : ++index < length)) {
      var other = array[index];
      if (other !== other) {
        return index;
      }
    }
    return -1;
  }

  /**
   * Checks if `value` is object-like.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
   */
  function isObjectLike(value) {
    return !!value && typeof value == 'object';
  }

  /**
   * Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a
   * character code is whitespace.
   *
   * @private
   * @param {number} charCode The character code to inspect.
   * @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`.
   */
  function isSpace(charCode) {
    return ((charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160) || charCode == 5760 || charCode == 6158 ||
      (charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279)));
  }

  /**
   * Replaces all `placeholder` elements in `array` with an internal placeholder
   * and returns an array of their indexes.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {*} placeholder The placeholder to replace.
   * @returns {Array} Returns the new array of placeholder indexes.
   */
  function replaceHolders(array, placeholder) {
    var index = -1,
        length = array.length,
        resIndex = -1,
        result = [];

    while (++index < length) {
      if (array[index] === placeholder) {
        array[index] = PLACEHOLDER;
        result[++resIndex] = index;
      }
    }
    return result;
  }

  /**
   * An implementation of `_.uniq` optimized for sorted arrays without support
   * for callback shorthands and `this` binding.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {Function} [iteratee] The function invoked per iteration.
   * @returns {Array} Returns the new duplicate-value-free array.
   */
  function sortedUniq(array, iteratee) {
    var seen,
        index = -1,
        length = array.length,
        resIndex = -1,
        result = [];

    while (++index < length) {
      var value = array[index],
          computed = iteratee ? iteratee(value, index, array) : value;

      if (!index || seen !== computed) {
        seen = computed;
        result[++resIndex] = value;
      }
    }
    return result;
  }

  /**
   * Used by `_.trim` and `_.trimLeft` to get the index of the first non-whitespace
   * character of `string`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {number} Returns the index of the first non-whitespace character.
   */
  function trimmedLeftIndex(string) {
    var index = -1,
        length = string.length;

    while (++index < length && isSpace(string.charCodeAt(index))) {}
    return index;
  }

  /**
   * Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace
   * character of `string`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {number} Returns the index of the last non-whitespace character.
   */
  function trimmedRightIndex(string) {
    var index = string.length;

    while (index-- && isSpace(string.charCodeAt(index))) {}
    return index;
  }

  /**
   * Used by `_.unescape` to convert HTML entities to characters.
   *
   * @private
   * @param {string} chr The matched character to unescape.
   * @returns {string} Returns the unescaped character.
   */
  function unescapeHtmlChar(chr) {
    return htmlUnescapes[chr];
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Create a new pristine `lodash` function using the given `context` object.
   *
   * @static
   * @memberOf _
   * @category Utility
   * @param {Object} [context=root] The context object.
   * @returns {Function} Returns a new `lodash` function.
   * @example
   *
   * _.mixin({ 'foo': _.constant('foo') });
   *
   * var lodash = _.runInContext();
   * lodash.mixin({ 'bar': lodash.constant('bar') });
   *
   * _.isFunction(_.foo);
   * // => true
   * _.isFunction(_.bar);
   * // => false
   *
   * lodash.isFunction(lodash.foo);
   * // => false
   * lodash.isFunction(lodash.bar);
   * // => true
   *
   * // using `context` to mock `Date#getTime` use in `_.now`
   * var mock = _.runInContext({
   *   'Date': function() {
   *     return { 'getTime': getTimeMock };
   *   }
   * });
   *
   * // or creating a suped-up `defer` in Node.js
   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
   */
  function runInContext(context) {
    // Avoid issues with some ES3 environments that attempt to use values, named
    // after built-in constructors like `Object`, for the creation of literals.
    // ES5 clears this up by stating that literals must use built-in constructors.
    // See https://es5.github.io/#x11.1.5 for more details.
    context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;

    /** Native constructor references. */
    var Array = context.Array,
        Date = context.Date,
        Error = context.Error,
        Function = context.Function,
        Math = context.Math,
        Number = context.Number,
        Object = context.Object,
        RegExp = context.RegExp,
        String = context.String,
        TypeError = context.TypeError;

    /** Used for native method references. */
    var arrayProto = Array.prototype,
        objectProto = Object.prototype,
        stringProto = String.prototype;

    /** Used to resolve the decompiled source of functions. */
    var fnToString = Function.prototype.toString;

    /** Used to check objects for own properties. */
    var hasOwnProperty = objectProto.hasOwnProperty;

    /** Used to generate unique IDs. */
    var idCounter = 0;

    /**
     * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
     * of values.
     */
    var objToString = objectProto.toString;

    /** Used to restore the original `_` reference in `_.noConflict`. */
    var oldDash = root._;

    /** Used to detect if a method is native. */
    var reIsNative = RegExp('^' +
      fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
      .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
    );

    /** Native method references. */
    var ArrayBuffer = context.ArrayBuffer,
        clearTimeout = context.clearTimeout,
        parseFloat = context.parseFloat,
        pow = Math.pow,
        propertyIsEnumerable = objectProto.propertyIsEnumerable,
        Set = getNative(context, 'Set'),
        setTimeout = context.setTimeout,
        splice = arrayProto.splice,
        Uint8Array = context.Uint8Array,
        WeakMap = getNative(context, 'WeakMap');

    /* Native method references for those with the same name as other `lodash` methods. */
    var nativeCeil = Math.ceil,
        nativeCreate = getNative(Object, 'create'),
        nativeFloor = Math.floor,
        nativeIsArray = getNative(Array, 'isArray'),
        nativeIsFinite = context.isFinite,
        nativeKeys = getNative(Object, 'keys'),
        nativeMax = Math.max,
        nativeMin = Math.min,
        nativeNow = getNative(Date, 'now'),
        nativeParseInt = context.parseInt,
        nativeRandom = Math.random;

    /** Used as references for `-Infinity` and `Infinity`. */
    var NEGATIVE_INFINITY = Number.NEGATIVE_INFINITY,
        POSITIVE_INFINITY = Number.POSITIVE_INFINITY;

    /** Used as references for the maximum length and index of an array. */
    var MAX_ARRAY_LENGTH = 4294967295,
        MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
        HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;

    /**
     * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
     * of an array-like value.
     */
    var MAX_SAFE_INTEGER = 9007199254740991;

    /** Used to store function metadata. */
    var metaMap = WeakMap && new WeakMap;

    /** Used to lookup unminified function names. */
    var realNames = {};

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` object which wraps `value` to enable implicit chaining.
     * Methods that operate on and return arrays, collections, and functions can
     * be chained together. Methods that retrieve a single value or may return a
     * primitive value will automatically end the chain returning the unwrapped
     * value. Explicit chaining may be enabled using `_.chain`. The execution of
     * chained methods is lazy, that is, execution is deferred until `_#value`
     * is implicitly or explicitly called.
     *
     * Lazy evaluation allows several methods to support shortcut fusion. Shortcut
     * fusion is an optimization strategy which merge iteratee calls; this can help
     * to avoid the creation of intermediate data structures and greatly reduce the
     * number of iteratee executions.
     *
     * Chaining is supported in custom builds as long as the `_#value` method is
     * directly or indirectly included in the build.
     *
     * In addition to lodash methods, wrappers have `Array` and `String` methods.
     *
     * The wrapper `Array` methods are:
     * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`,
     * `splice`, and `unshift`
     *
     * The wrapper `String` methods are:
     * `replace` and `split`
     *
     * The wrapper methods that support shortcut fusion are:
     * `compact`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`,
     * `first`, `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`,
     * `slice`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `toArray`,
     * and `where`
     *
     * The chainable wrapper methods are:
     * `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`,
     * `callback`, `chain`, `chunk`, `commit`, `compact`, `concat`, `constant`,
     * `countBy`, `create`, `curry`, `debounce`, `defaults`, `defaultsDeep`,
     * `defer`, `delay`, `difference`, `drop`, `dropRight`, `dropRightWhile`,
     * `dropWhile`, `fill`, `filter`, `flatten`, `flattenDeep`, `flow`, `flowRight`,
     * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
     * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
     * `invoke`, `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`,
     * `matchesProperty`, `memoize`, `merge`, `method`, `methodOf`, `mixin`,
     * `modArgs`, `negate`, `omit`, `once`, `pairs`, `partial`, `partialRight`,
     * `partition`, `pick`, `plant`, `pluck`, `property`, `propertyOf`, `pull`,
     * `pullAt`, `push`, `range`, `rearg`, `reject`, `remove`, `rest`, `restParam`,
     * `reverse`, `set`, `shuffle`, `slice`, `sort`, `sortBy`, `sortByAll`,
     * `sortByOrder`, `splice`, `spread`, `take`, `takeRight`, `takeRightWhile`,
     * `takeWhile`, `tap`, `throttle`, `thru`, `times`, `toArray`, `toPlainObject`,
     * `transform`, `union`, `uniq`, `unshift`, `unzip`, `unzipWith`, `values`,
     * `valuesIn`, `where`, `without`, `wrap`, `xor`, `zip`, `zipObject`, `zipWith`
     *
     * The wrapper methods that are **not** chainable by default are:
     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clone`, `cloneDeep`,
     * `deburr`, `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`,
     * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`,
     * `floor`, `get`, `gt`, `gte`, `has`, `identity`, `includes`, `indexOf`,
     * `inRange`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
     * `isEmpty`, `isEqual`, `isError`, `isFinite` `isFunction`, `isMatch`,
     * `isNative`, `isNaN`, `isNull`, `isNumber`, `isObject`, `isPlainObject`,
     * `isRegExp`, `isString`, `isUndefined`, `isTypedArray`, `join`, `kebabCase`,
     * `last`, `lastIndexOf`, `lt`, `lte`, `max`, `min`, `noConflict`, `noop`,
     * `now`, `pad`, `padLeft`, `padRight`, `parseInt`, `pop`, `random`, `reduce`,
     * `reduceRight`, `repeat`, `result`, `round`, `runInContext`, `shift`, `size`,
     * `snakeCase`, `some`, `sortedIndex`, `sortedLastIndex`, `startCase`,
     * `startsWith`, `sum`, `template`, `trim`, `trimLeft`, `trimRight`, `trunc`,
     * `unescape`, `uniqueId`, `value`, and `words`
     *
     * The wrapper method `sample` will return a wrapped value when `n` is provided,
     * otherwise an unwrapped value is returned.
     *
     * @name _
     * @constructor
     * @category Chain
     * @param {*} value The value to wrap in a `lodash` instance.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var wrapped = _([1, 2, 3]);
     *
     * // returns an unwrapped value
     * wrapped.reduce(function(total, n) {
     *   return total + n;
     * });
     * // => 6
     *
     * // returns a wrapped value
     * var squares = wrapped.map(function(n) {
     *   return n * n;
     * });
     *
     * _.isArray(squares);
     * // => false
     *
     * _.isArray(squares.value());
     * // => true
     */
    function lodash(value) {
      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
        if (value instanceof LodashWrapper) {
          return value;
        }
        if (hasOwnProperty.call(value, '__chain__') && hasOwnProperty.call(value, '__wrapped__')) {
          return wrapperClone(value);
        }
      }
      return new LodashWrapper(value);
    }

    /**
     * The function whose prototype all chaining wrappers inherit from.
     *
     * @private
     */
    function baseLodash() {
      // No operation performed.
    }

    /**
     * The base constructor for creating `lodash` wrapper objects.
     *
     * @private
     * @param {*} value The value to wrap.
     * @param {boolean} [chainAll] Enable chaining for all wrapper methods.
     * @param {Array} [actions=[]] Actions to peform to resolve the unwrapped value.
     */
    function LodashWrapper(value, chainAll, actions) {
      this.__wrapped__ = value;
      this.__actions__ = actions || [];
      this.__chain__ = !!chainAll;
    }

    /**
     * An object environment feature flags.
     *
     * @static
     * @memberOf _
     * @type Object
     */
    var support = lodash.support = {};

    /**
     * By default, the template delimiters used by lodash are like those in
     * embedded Ruby (ERB). Change the following template settings to use
     * alternative delimiters.
     *
     * @static
     * @memberOf _
     * @type Object
     */
    lodash.templateSettings = {

      /**
       * Used to detect `data` property values to be HTML-escaped.
       *
       * @memberOf _.templateSettings
       * @type RegExp
       */
      'escape': reEscape,

      /**
       * Used to detect code to be evaluated.
       *
       * @memberOf _.templateSettings
       * @type RegExp
       */
      'evaluate': reEvaluate,

      /**
       * Used to detect `data` property values to inject.
       *
       * @memberOf _.templateSettings
       * @type RegExp
       */
      'interpolate': reInterpolate,

      /**
       * Used to reference the data object in the template text.
       *
       * @memberOf _.templateSettings
       * @type string
       */
      'variable': '',

      /**
       * Used to import variables into the compiled template.
       *
       * @memberOf _.templateSettings
       * @type Object
       */
      'imports': {

        /**
         * A reference to the `lodash` function.
         *
         * @memberOf _.templateSettings.imports
         * @type Function
         */
        '_': lodash
      }
    };

    /*------------------------------------------------------------------------*/

    /**
     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
     *
     * @private
     * @param {*} value The value to wrap.
     */
    function LazyWrapper(value) {
      this.__wrapped__ = value;
      this.__actions__ = [];
      this.__dir__ = 1;
      this.__filtered__ = false;
      this.__iteratees__ = [];
      this.__takeCount__ = POSITIVE_INFINITY;
      this.__views__ = [];
    }

    /**
     * Creates a clone of the lazy wrapper object.
     *
     * @private
     * @name clone
     * @memberOf LazyWrapper
     * @returns {Object} Returns the cloned `LazyWrapper` object.
     */
    function lazyClone() {
      var result = new LazyWrapper(this.__wrapped__);
      result.__actions__ = arrayCopy(this.__actions__);
      result.__dir__ = this.__dir__;
      result.__filtered__ = this.__filtered__;
      result.__iteratees__ = arrayCopy(this.__iteratees__);
      result.__takeCount__ = this.__takeCount__;
      result.__views__ = arrayCopy(this.__views__);
      return result;
    }

    /**
     * Reverses the direction of lazy iteration.
     *
     * @private
     * @name reverse
     * @memberOf LazyWrapper
     * @returns {Object} Returns the new reversed `LazyWrapper` object.
     */
    function lazyReverse() {
      if (this.__filtered__) {
        var result = new LazyWrapper(this);
        result.__dir__ = -1;
        result.__filtered__ = true;
      } else {
        result = this.clone();
        result.__dir__ *= -1;
      }
      return result;
    }

    /**
     * Extracts the unwrapped value from its lazy wrapper.
     *
     * @private
     * @name value
     * @memberOf LazyWrapper
     * @returns {*} Returns the unwrapped value.
     */
    function lazyValue() {
      var array = this.__wrapped__.value(),
          dir = this.__dir__,
          isArr = isArray(array),
          isRight = dir < 0,
          arrLength = isArr ? array.length : 0,
          view = getView(0, arrLength, this.__views__),
          start = view.start,
          end = view.end,
          length = end - start,
          index = isRight ? end : (start - 1),
          iteratees = this.__iteratees__,
          iterLength = iteratees.length,
          resIndex = 0,
          takeCount = nativeMin(length, this.__takeCount__);

      if (!isArr || arrLength < LARGE_ARRAY_SIZE || (arrLength == length && takeCount == length)) {
        return baseWrapperValue((isRight && isArr) ? array.reverse() : array, this.__actions__);
      }
      var result = [];

      outer:
      while (length-- && resIndex < takeCount) {
        index += dir;

        var iterIndex = -1,
            value = array[index];

        while (++iterIndex < iterLength) {
          var data = iteratees[iterIndex],
              iteratee = data.iteratee,
              type = data.type,
              computed = iteratee(value);

          if (type == LAZY_MAP_FLAG) {
            value = computed;
          } else if (!computed) {
            if (type == LAZY_FILTER_FLAG) {
              continue outer;
            } else {
              break outer;
            }
          }
        }
        result[resIndex++] = value;
      }
      return result;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates a cache object to store key/value pairs.
     *
     * @private
     * @static
     * @name Cache
     * @memberOf _.memoize
     */
    function MapCache() {
      this.__data__ = {};
    }

    /**
     * Removes `key` and its value from the cache.
     *
     * @private
     * @name delete
     * @memberOf _.memoize.Cache
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed successfully, else `false`.
     */
    function mapDelete(key) {
      return this.has(key) && delete this.__data__[key];
    }

    /**
     * Gets the cached value for `key`.
     *
     * @private
     * @name get
     * @memberOf _.memoize.Cache
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the cached value.
     */
    function mapGet(key) {
      return key == '__proto__' ? undefined : this.__data__[key];
    }

    /**
     * Checks if a cached value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf _.memoize.Cache
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function mapHas(key) {
      return key != '__proto__' && hasOwnProperty.call(this.__data__, key);
    }

    /**
     * Sets `value` to `key` of the cache.
     *
     * @private
     * @name set
     * @memberOf _.memoize.Cache
     * @param {string} key The key of the value to cache.
     * @param {*} value The value to cache.
     * @returns {Object} Returns the cache object.
     */
    function mapSet(key, value) {
      if (key != '__proto__') {
        this.__data__[key] = value;
      }
      return this;
    }

    /*------------------------------------------------------------------------*/

    /**
     *
     * Creates a cache object to store unique values.
     *
     * @private
     * @param {Array} [values] The values to cache.
     */
    function SetCache(values) {
      var length = values ? values.length : 0;

      this.data = { 'hash': nativeCreate(null), 'set': new Set };
      while (length--) {
        this.push(values[length]);
      }
    }

    /**
     * Checks if `value` is in `cache` mimicking the return signature of
     * `_.indexOf` by returning `0` if the value is found, else `-1`.
     *
     * @private
     * @param {Object} cache The cache to search.
     * @param {*} value The value to search for.
     * @returns {number} Returns `0` if `value` is found, else `-1`.
     */
    function cacheIndexOf(cache, value) {
      var data = cache.data,
          result = (typeof value == 'string' || isObject(value)) ? data.set.has(value) : data.hash[value];

      return result ? 0 : -1;
    }

    /**
     * Adds `value` to the cache.
     *
     * @private
     * @name push
     * @memberOf SetCache
     * @param {*} value The value to cache.
     */
    function cachePush(value) {
      var data = this.data;
      if (typeof value == 'string' || isObject(value)) {
        data.set.add(value);
      } else {
        data.hash[value] = true;
      }
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates a new array joining `array` with `other`.
     *
     * @private
     * @param {Array} array The array to join.
     * @param {Array} other The other array to join.
     * @returns {Array} Returns the new concatenated array.
     */
    function arrayConcat(array, other) {
      var index = -1,
          length = array.length,
          othIndex = -1,
          othLength = other.length,
          result = Array(length + othLength);

      while (++index < length) {
        result[index] = array[index];
      }
      while (++othIndex < othLength) {
        result[index++] = other[othIndex];
      }
      return result;
    }

    /**
     * Copies the values of `source` to `array`.
     *
     * @private
     * @param {Array} source The array to copy values from.
     * @param {Array} [array=[]] The array to copy values to.
     * @returns {Array} Returns `array`.
     */
    function arrayCopy(source, array) {
      var index = -1,
          length = source.length;

      array || (array = Array(length));
      while (++index < length) {
        array[index] = source[index];
      }
      return array;
    }

    /**
     * A specialized version of `_.forEach` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns `array`.
     */
    function arrayEach(array, iteratee) {
      var index = -1,
          length = array.length;

      while (++index < length) {
        if (iteratee(array[index], index, array) === false) {
          break;
        }
      }
      return array;
    }

    /**
     * A specialized version of `_.forEachRight` for arrays without support for
     * callback shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns `array`.
     */
    function arrayEachRight(array, iteratee) {
      var length = array.length;

      while (length--) {
        if (iteratee(array[length], length, array) === false) {
          break;
        }
      }
      return array;
    }

    /**
     * A specialized version of `_.every` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`.
     */
    function arrayEvery(array, predicate) {
      var index = -1,
          length = array.length;

      while (++index < length) {
        if (!predicate(array[index], index, array)) {
          return false;
        }
      }
      return true;
    }

    /**
     * A specialized version of `baseExtremum` for arrays which invokes `iteratee`
     * with one argument: (value).
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} comparator The function used to compare values.
     * @param {*} exValue The initial extremum value.
     * @returns {*} Returns the extremum value.
     */
    function arrayExtremum(array, iteratee, comparator, exValue) {
      var index = -1,
          length = array.length,
          computed = exValue,
          result = computed;

      while (++index < length) {
        var value = array[index],
            current = +iteratee(value);

        if (comparator(current, computed)) {
          computed = current;
          result = value;
        }
      }
      return result;
    }

    /**
     * A specialized version of `_.filter` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     */
    function arrayFilter(array, predicate) {
      var index = -1,
          length = array.length,
          resIndex = -1,
          result = [];

      while (++index < length) {
        var value = array[index];
        if (predicate(value, index, array)) {
          result[++resIndex] = value;
        }
      }
      return result;
    }

    /**
     * A specialized version of `_.map` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     */
    function arrayMap(array, iteratee) {
      var index = -1,
          length = array.length,
          result = Array(length);

      while (++index < length) {
        result[index] = iteratee(array[index], index, array);
      }
      return result;
    }

    /**
     * Appends the elements of `values` to `array`.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {Array} values The values to append.
     * @returns {Array} Returns `array`.
     */
    function arrayPush(array, values) {
      var index = -1,
          length = values.length,
          offset = array.length;

      while (++index < length) {
        array[offset + index] = values[index];
      }
      return array;
    }

    /**
     * A specialized version of `_.reduce` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @param {boolean} [initFromArray] Specify using the first element of `array`
     *  as the initial value.
     * @returns {*} Returns the accumulated value.
     */
    function arrayReduce(array, iteratee, accumulator, initFromArray) {
      var index = -1,
          length = array.length;

      if (initFromArray && length) {
        accumulator = array[++index];
      }
      while (++index < length) {
        accumulator = iteratee(accumulator, array[index], index, array);
      }
      return accumulator;
    }

    /**
     * A specialized version of `_.reduceRight` for arrays without support for
     * callback shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @param {boolean} [initFromArray] Specify using the last element of `array`
     *  as the initial value.
     * @returns {*} Returns the accumulated value.
     */
    function arrayReduceRight(array, iteratee, accumulator, initFromArray) {
      var length = array.length;
      if (initFromArray && length) {
        accumulator = array[--length];
      }
      while (length--) {
        accumulator = iteratee(accumulator, array[length], length, array);
      }
      return accumulator;
    }

    /**
     * A specialized version of `_.some` for arrays without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     */
    function arraySome(array, predicate) {
      var index = -1,
          length = array.length;

      while (++index < length) {
        if (predicate(array[index], index, array)) {
          return true;
        }
      }
      return false;
    }

    /**
     * A specialized version of `_.sum` for arrays without support for callback
     * shorthands and `this` binding..
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {number} Returns the sum.
     */
    function arraySum(array, iteratee) {
      var length = array.length,
          result = 0;

      while (length--) {
        result += +iteratee(array[length]) || 0;
      }
      return result;
    }

    /**
     * Used by `_.defaults` to customize its `_.assign` use.
     *
     * @private
     * @param {*} objectValue The destination object property value.
     * @param {*} sourceValue The source object property value.
     * @returns {*} Returns the value to assign to the destination object.
     */
    function assignDefaults(objectValue, sourceValue) {
      return objectValue === undefined ? sourceValue : objectValue;
    }

    /**
     * Used by `_.template` to customize its `_.assign` use.
     *
     * **Note:** This function is like `assignDefaults` except that it ignores
     * inherited property values when checking if a property is `undefined`.
     *
     * @private
     * @param {*} objectValue The destination object property value.
     * @param {*} sourceValue The source object property value.
     * @param {string} key The key associated with the object and source values.
     * @param {Object} object The destination object.
     * @returns {*} Returns the value to assign to the destination object.
     */
    function assignOwnDefaults(objectValue, sourceValue, key, object) {
      return (objectValue === undefined || !hasOwnProperty.call(object, key))
        ? sourceValue
        : objectValue;
    }

    /**
     * A specialized version of `_.assign` for customizing assigned values without
     * support for argument juggling, multiple sources, and `this` binding `customizer`
     * functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {Function} customizer The function to customize assigned values.
     * @returns {Object} Returns `object`.
     */
    function assignWith(object, source, customizer) {
      var index = -1,
          props = keys(source),
          length = props.length;

      while (++index < length) {
        var key = props[index],
            value = object[key],
            result = customizer(value, source[key], key, object, source);

        if ((result === result ? (result !== value) : (value === value)) ||
            (value === undefined && !(key in object))) {
          object[key] = result;
        }
      }
      return object;
    }

    /**
     * The base implementation of `_.assign` without support for argument juggling,
     * multiple sources, and `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @returns {Object} Returns `object`.
     */
    function baseAssign(object, source) {
      return source == null
        ? object
        : baseCopy(source, keys(source), object);
    }

    /**
     * The base implementation of `_.at` without support for string collections
     * and individual key arguments.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {number[]|string[]} props The property names or indexes of elements to pick.
     * @returns {Array} Returns the new array of picked elements.
     */
    function baseAt(collection, props) {
      var index = -1,
          isNil = collection == null,
          isArr = !isNil && isArrayLike(collection),
          length = isArr ? collection.length : 0,
          propsLength = props.length,
          result = Array(propsLength);

      while(++index < propsLength) {
        var key = props[index];
        if (isArr) {
          result[index] = isIndex(key, length) ? collection[key] : undefined;
        } else {
          result[index] = isNil ? undefined : collection[key];
        }
      }
      return result;
    }

    /**
     * Copies properties of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy properties from.
     * @param {Array} props The property names to copy.
     * @param {Object} [object={}] The object to copy properties to.
     * @returns {Object} Returns `object`.
     */
    function baseCopy(source, props, object) {
      object || (object = {});

      var index = -1,
          length = props.length;

      while (++index < length) {
        var key = props[index];
        object[key] = source[key];
      }
      return object;
    }

    /**
     * The base implementation of `_.callback` which supports specifying the
     * number of arguments to provide to `func`.
     *
     * @private
     * @param {*} [func=_.identity] The value to convert to a callback.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {number} [argCount] The number of arguments to provide to `func`.
     * @returns {Function} Returns the callback.
     */
    function baseCallback(func, thisArg, argCount) {
      var type = typeof func;
      if (type == 'function') {
        return thisArg === undefined
          ? func
          : bindCallback(func, thisArg, argCount);
      }
      if (func == null) {
        return identity;
      }
      if (type == 'object') {
        return baseMatches(func);
      }
      return thisArg === undefined
        ? property(func)
        : baseMatchesProperty(func, thisArg);
    }

    /**
     * The base implementation of `_.clone` without support for argument juggling
     * and `this` binding `customizer` functions.
     *
     * @private
     * @param {*} value The value to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @param {Function} [customizer] The function to customize cloning values.
     * @param {string} [key] The key of `value`.
     * @param {Object} [object] The object `value` belongs to.
     * @param {Array} [stackA=[]] Tracks traversed source objects.
     * @param {Array} [stackB=[]] Associates clones with source counterparts.
     * @returns {*} Returns the cloned value.
     */
    function baseClone(value, isDeep, customizer, key, object, stackA, stackB) {
      var result;
      if (customizer) {
        result = object ? customizer(value, key, object) : customizer(value);
      }
      if (result !== undefined) {
        return result;
      }
      if (!isObject(value)) {
        return value;
      }
      var isArr = isArray(value);
      if (isArr) {
        result = initCloneArray(value);
        if (!isDeep) {
          return arrayCopy(value, result);
        }
      } else {
        var tag = objToString.call(value),
            isFunc = tag == funcTag;

        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
          result = initCloneObject(isFunc ? {} : value);
          if (!isDeep) {
            return baseAssign(result, value);
          }
        } else {
          return cloneableTags[tag]
            ? initCloneByTag(value, tag, isDeep)
            : (object ? value : {});
        }
      }
      // Check for circular references and return its corresponding clone.
      stackA || (stackA = []);
      stackB || (stackB = []);

      var length = stackA.length;
      while (length--) {
        if (stackA[length] == value) {
          return stackB[length];
        }
      }
      // Add the source value to the stack of traversed objects and associate it with its clone.
      stackA.push(value);
      stackB.push(result);

      // Recursively populate clone (susceptible to call stack limits).
      (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
        result[key] = baseClone(subValue, isDeep, customizer, key, value, stackA, stackB);
      });
      return result;
    }

    /**
     * The base implementation of `_.create` without support for assigning
     * properties to the created object.
     *
     * @private
     * @param {Object} prototype The object to inherit from.
     * @returns {Object} Returns the new object.
     */
    var baseCreate = (function() {
      function object() {}
      return function(prototype) {
        if (isObject(prototype)) {
          object.prototype = prototype;
          var result = new object;
          object.prototype = undefined;
        }
        return result || {};
      };
    }());

    /**
     * The base implementation of `_.delay` and `_.defer` which accepts an index
     * of where to slice the arguments to provide to `func`.
     *
     * @private
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {Object} args The arguments provide to `func`.
     * @returns {number} Returns the timer id.
     */
    function baseDelay(func, wait, args) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return setTimeout(function() { func.apply(undefined, args); }, wait);
    }

    /**
     * The base implementation of `_.difference` which accepts a single array
     * of values to exclude.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Array} values The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     */
    function baseDifference(array, values) {
      var length = array ? array.length : 0,
          result = [];

      if (!length) {
        return result;
      }
      var index = -1,
          indexOf = getIndexOf(),
          isCommon = indexOf == baseIndexOf,
          cache = (isCommon && values.length >= LARGE_ARRAY_SIZE) ? createCache(values) : null,
          valuesLength = values.length;

      if (cache) {
        indexOf = cacheIndexOf;
        isCommon = false;
        values = cache;
      }
      outer:
      while (++index < length) {
        var value = array[index];

        if (isCommon && value === value) {
          var valuesIndex = valuesLength;
          while (valuesIndex--) {
            if (values[valuesIndex] === value) {
              continue outer;
            }
          }
          result.push(value);
        }
        else if (indexOf(values, value, 0) < 0) {
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.forEach` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object|string} Returns `collection`.
     */
    var baseEach = createBaseEach(baseForOwn);

    /**
     * The base implementation of `_.forEachRight` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object|string} Returns `collection`.
     */
    var baseEachRight = createBaseEach(baseForOwnRight, true);

    /**
     * The base implementation of `_.every` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`
     */
    function baseEvery(collection, predicate) {
      var result = true;
      baseEach(collection, function(value, index, collection) {
        result = !!predicate(value, index, collection);
        return result;
      });
      return result;
    }

    /**
     * Gets the extremum value of `collection` invoking `iteratee` for each value
     * in `collection` to generate the criterion by which the value is ranked.
     * The `iteratee` is invoked with three arguments: (value, index|key, collection).
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} comparator The function used to compare values.
     * @param {*} exValue The initial extremum value.
     * @returns {*} Returns the extremum value.
     */
    function baseExtremum(collection, iteratee, comparator, exValue) {
      var computed = exValue,
          result = computed;

      baseEach(collection, function(value, index, collection) {
        var current = +iteratee(value, index, collection);
        if (comparator(current, computed) || (current === exValue && current === result)) {
          computed = current;
          result = value;
        }
      });
      return result;
    }

    /**
     * The base implementation of `_.fill` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     */
    function baseFill(array, value, start, end) {
      var length = array.length;

      start = start == null ? 0 : (+start || 0);
      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = (end === undefined || end > length) ? length : (+end || 0);
      if (end < 0) {
        end += length;
      }
      length = start > end ? 0 : (end >>> 0);
      start >>>= 0;

      while (start < length) {
        array[start++] = value;
      }
      return array;
    }

    /**
     * The base implementation of `_.filter` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     */
    function baseFilter(collection, predicate) {
      var result = [];
      baseEach(collection, function(value, index, collection) {
        if (predicate(value, index, collection)) {
          result.push(value);
        }
      });
      return result;
    }

    /**
     * The base implementation of `_.find`, `_.findLast`, `_.findKey`, and `_.findLastKey`,
     * without support for callback shorthands and `this` binding, which iterates
     * over `collection` using the provided `eachFunc`.
     *
     * @private
     * @param {Array|Object|string} collection The collection to search.
     * @param {Function} predicate The function invoked per iteration.
     * @param {Function} eachFunc The function to iterate over `collection`.
     * @param {boolean} [retKey] Specify returning the key of the found element
     *  instead of the element itself.
     * @returns {*} Returns the found element or its key, else `undefined`.
     */
    function baseFind(collection, predicate, eachFunc, retKey) {
      var result;
      eachFunc(collection, function(value, key, collection) {
        if (predicate(value, key, collection)) {
          result = retKey ? key : value;
          return false;
        }
      });
      return result;
    }

    /**
     * The base implementation of `_.flatten` with added support for restricting
     * flattening and specifying the start index.
     *
     * @private
     * @param {Array} array The array to flatten.
     * @param {boolean} [isDeep] Specify a deep flatten.
     * @param {boolean} [isStrict] Restrict flattening to arrays-like objects.
     * @param {Array} [result=[]] The initial result value.
     * @returns {Array} Returns the new flattened array.
     */
    function baseFlatten(array, isDeep, isStrict, result) {
      result || (result = []);

      var index = -1,
          length = array.length;

      while (++index < length) {
        var value = array[index];
        if (isObjectLike(value) && isArrayLike(value) &&
            (isStrict || isArray(value) || isArguments(value))) {
          if (isDeep) {
            // Recursively flatten arrays (susceptible to call stack limits).
            baseFlatten(value, isDeep, isStrict, result);
          } else {
            arrayPush(result, value);
          }
        } else if (!isStrict) {
          result[result.length] = value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `baseForIn` and `baseForOwn` which iterates
     * over `object` properties returned by `keysFunc` invoking `iteratee` for
     * each property. Iteratee functions may exit iteration early by explicitly
     * returning `false`.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseFor = createBaseFor();

    /**
     * This function is like `baseFor` except that it iterates over properties
     * in the opposite order.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseForRight = createBaseFor(true);

    /**
     * The base implementation of `_.forIn` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForIn(object, iteratee) {
      return baseFor(object, iteratee, keysIn);
    }

    /**
     * The base implementation of `_.forOwn` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwn(object, iteratee) {
      return baseFor(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.forOwnRight` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwnRight(object, iteratee) {
      return baseForRight(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.functions` which creates an array of
     * `object` function property names filtered from those provided.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Array} props The property names to filter.
     * @returns {Array} Returns the new array of filtered property names.
     */
    function baseFunctions(object, props) {
      var index = -1,
          length = props.length,
          resIndex = -1,
          result = [];

      while (++index < length) {
        var key = props[index];
        if (isFunction(object[key])) {
          result[++resIndex] = key;
        }
      }
      return result;
    }

    /**
     * The base implementation of `get` without support for string paths
     * and default values.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array} path The path of the property to get.
     * @param {string} [pathKey] The key representation of path.
     * @returns {*} Returns the resolved value.
     */
    function baseGet(object, path, pathKey) {
      if (object == null) {
        return;
      }
      if (pathKey !== undefined && pathKey in toObject(object)) {
        path = [pathKey];
      }
      var index = 0,
          length = path.length;

      while (object != null && index < length) {
        object = object[path[index++]];
      }
      return (index && index == length) ? object : undefined;
    }

    /**
     * The base implementation of `_.isEqual` without support for `this` binding
     * `customizer` functions.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {Function} [customizer] The function to customize comparing values.
     * @param {boolean} [isLoose] Specify performing partial comparisons.
     * @param {Array} [stackA] Tracks traversed `value` objects.
     * @param {Array} [stackB] Tracks traversed `other` objects.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     */
    function baseIsEqual(value, other, customizer, isLoose, stackA, stackB) {
      if (value === other) {
        return true;
      }
      if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {
        return value !== value && other !== other;
      }
      return baseIsEqualDeep(value, other, baseIsEqual, customizer, isLoose, stackA, stackB);
    }

    /**
     * A specialized version of `baseIsEqual` for arrays and objects which performs
     * deep comparisons and tracks traversed objects enabling objects with circular
     * references to be compared.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Function} [customizer] The function to customize comparing objects.
     * @param {boolean} [isLoose] Specify performing partial comparisons.
     * @param {Array} [stackA=[]] Tracks traversed `value` objects.
     * @param {Array} [stackB=[]] Tracks traversed `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function baseIsEqualDeep(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
      var objIsArr = isArray(object),
          othIsArr = isArray(other),
          objTag = arrayTag,
          othTag = arrayTag;

      if (!objIsArr) {
        objTag = objToString.call(object);
        if (objTag == argsTag) {
          objTag = objectTag;
        } else if (objTag != objectTag) {
          objIsArr = isTypedArray(object);
        }
      }
      if (!othIsArr) {
        othTag = objToString.call(other);
        if (othTag == argsTag) {
          othTag = objectTag;
        } else if (othTag != objectTag) {
          othIsArr = isTypedArray(other);
        }
      }
      var objIsObj = objTag == objectTag,
          othIsObj = othTag == objectTag,
          isSameTag = objTag == othTag;

      if (isSameTag && !(objIsArr || objIsObj)) {
        return equalByTag(object, other, objTag);
      }
      if (!isLoose) {
        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

        if (objIsWrapped || othIsWrapped) {
          return equalFunc(objIsWrapped ? object.value() : object, othIsWrapped ? other.value() : other, customizer, isLoose, stackA, stackB);
        }
      }
      if (!isSameTag) {
        return false;
      }
      // Assume cyclic values are equal.
      // For more information on detecting circular references see https://es5.github.io/#JO.
      stackA || (stackA = []);
      stackB || (stackB = []);

      var length = stackA.length;
      while (length--) {
        if (stackA[length] == object) {
          return stackB[length] == other;
        }
      }
      // Add `object` and `other` to the stack of traversed objects.
      stackA.push(object);
      stackB.push(other);

      var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isLoose, stackA, stackB);

      stackA.pop();
      stackB.pop();

      return result;
    }

    /**
     * The base implementation of `_.isMatch` without support for callback
     * shorthands and `this` binding.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Array} matchData The propery names, values, and compare flags to match.
     * @param {Function} [customizer] The function to customize comparing objects.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     */
    function baseIsMatch(object, matchData, customizer) {
      var index = matchData.length,
          length = index,
          noCustomizer = !customizer;

      if (object == null) {
        return !length;
      }
      object = toObject(object);
      while (index--) {
        var data = matchData[index];
        if ((noCustomizer && data[2])
              ? data[1] !== object[data[0]]
              : !(data[0] in object)
            ) {
          return false;
        }
      }
      while (++index < length) {
        data = matchData[index];
        var key = data[0],
            objValue = object[key],
            srcValue = data[1];

        if (noCustomizer && data[2]) {
          if (objValue === undefined && !(key in object)) {
            return false;
          }
        } else {
          var result = customizer ? customizer(objValue, srcValue, key) : undefined;
          if (!(result === undefined ? baseIsEqual(srcValue, objValue, customizer, true) : result)) {
            return false;
          }
        }
      }
      return true;
    }

    /**
     * The base implementation of `_.map` without support for callback shorthands
     * and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     */
    function baseMap(collection, iteratee) {
      var index = -1,
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value, key, collection) {
        result[++index] = iteratee(value, key, collection);
      });
      return result;
    }

    /**
     * The base implementation of `_.matches` which does not clone `source`.
     *
     * @private
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new function.
     */
    function baseMatches(source) {
      var matchData = getMatchData(source);
      if (matchData.length == 1 && matchData[0][2]) {
        var key = matchData[0][0],
            value = matchData[0][1];

        return function(object) {
          if (object == null) {
            return false;
          }
          return object[key] === value && (value !== undefined || (key in toObject(object)));
        };
      }
      return function(object) {
        return baseIsMatch(object, matchData);
      };
    }

    /**
     * The base implementation of `_.matchesProperty` which does not clone `srcValue`.
     *
     * @private
     * @param {string} path The path of the property to get.
     * @param {*} srcValue The value to compare.
     * @returns {Function} Returns the new function.
     */
    function baseMatchesProperty(path, srcValue) {
      var isArr = isArray(path),
          isCommon = isKey(path) && isStrictComparable(srcValue),
          pathKey = (path + '');

      path = toPath(path);
      return function(object) {
        if (object == null) {
          return false;
        }
        var key = pathKey;
        object = toObject(object);
        if ((isArr || !isCommon) && !(key in object)) {
          object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
          if (object == null) {
            return false;
          }
          key = last(path);
          object = toObject(object);
        }
        return object[key] === srcValue
          ? (srcValue !== undefined || (key in object))
          : baseIsEqual(srcValue, object[key], undefined, true);
      };
    }

    /**
     * The base implementation of `_.merge` without support for argument juggling,
     * multiple sources, and `this` binding `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {Function} [customizer] The function to customize merged values.
     * @param {Array} [stackA=[]] Tracks traversed source objects.
     * @param {Array} [stackB=[]] Associates values with source counterparts.
     * @returns {Object} Returns `object`.
     */
    function baseMerge(object, source, customizer, stackA, stackB) {
      if (!isObject(object)) {
        return object;
      }
      var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),
          props = isSrcArr ? undefined : keys(source);

      arrayEach(props || source, function(srcValue, key) {
        if (props) {
          key = srcValue;
          srcValue = source[key];
        }
        if (isObjectLike(srcValue)) {
          stackA || (stackA = []);
          stackB || (stackB = []);
          baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);
        }
        else {
          var value = object[key],
              result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
              isCommon = result === undefined;

          if (isCommon) {
            result = srcValue;
          }
          if ((result !== undefined || (isSrcArr && !(key in object))) &&
              (isCommon || (result === result ? (result !== value) : (value === value)))) {
            object[key] = result;
          }
        }
      });
      return object;
    }

    /**
     * A specialized version of `baseMerge` for arrays and objects which performs
     * deep merges and tracks traversed objects enabling objects with circular
     * references to be merged.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {string} key The key of the value to merge.
     * @param {Function} mergeFunc The function to merge values.
     * @param {Function} [customizer] The function to customize merged values.
     * @param {Array} [stackA=[]] Tracks traversed source objects.
     * @param {Array} [stackB=[]] Associates values with source counterparts.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {
      var length = stackA.length,
          srcValue = source[key];

      while (length--) {
        if (stackA[length] == srcValue) {
          object[key] = stackB[length];
          return;
        }
      }
      var value = object[key],
          result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
          isCommon = result === undefined;

      if (isCommon) {
        result = srcValue;
        if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {
          result = isArray(value)
            ? value
            : (isArrayLike(value) ? arrayCopy(value) : []);
        }
        else if (isPlainObject(srcValue) || isArguments(srcValue)) {
          result = isArguments(value)
            ? toPlainObject(value)
            : (isPlainObject(value) ? value : {});
        }
        else {
          isCommon = false;
        }
      }
      // Add the source value to the stack of traversed objects and associate
      // it with its merged value.
      stackA.push(srcValue);
      stackB.push(result);

      if (isCommon) {
        // Recursively merge objects and arrays (susceptible to call stack limits).
        object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);
      } else if (result === result ? (result !== value) : (value === value)) {
        object[key] = result;
      }
    }

    /**
     * The base implementation of `_.property` without support for deep paths.
     *
     * @private
     * @param {string} key The key of the property to get.
     * @returns {Function} Returns the new function.
     */
    function baseProperty(key) {
      return function(object) {
        return object == null ? undefined : object[key];
      };
    }

    /**
     * A specialized version of `baseProperty` which supports deep paths.
     *
     * @private
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new function.
     */
    function basePropertyDeep(path) {
      var pathKey = (path + '');
      path = toPath(path);
      return function(object) {
        return baseGet(object, path, pathKey);
      };
    }

    /**
     * The base implementation of `_.pullAt` without support for individual
     * index arguments and capturing the removed elements.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {number[]} indexes The indexes of elements to remove.
     * @returns {Array} Returns `array`.
     */
    function basePullAt(array, indexes) {
      var length = array ? indexes.length : 0;
      while (length--) {
        var index = indexes[length];
        if (index != previous && isIndex(index)) {
          var previous = index;
          splice.call(array, index, 1);
        }
      }
      return array;
    }

    /**
     * The base implementation of `_.random` without support for argument juggling
     * and returning floating-point numbers.
     *
     * @private
     * @param {number} min The minimum possible value.
     * @param {number} max The maximum possible value.
     * @returns {number} Returns the random number.
     */
    function baseRandom(min, max) {
      return min + nativeFloor(nativeRandom() * (max - min + 1));
    }

    /**
     * The base implementation of `_.reduce` and `_.reduceRight` without support
     * for callback shorthands and `this` binding, which iterates over `collection`
     * using the provided `eachFunc`.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {*} accumulator The initial value.
     * @param {boolean} initFromCollection Specify using the first or last element
     *  of `collection` as the initial value.
     * @param {Function} eachFunc The function to iterate over `collection`.
     * @returns {*} Returns the accumulated value.
     */
    function baseReduce(collection, iteratee, accumulator, initFromCollection, eachFunc) {
      eachFunc(collection, function(value, index, collection) {
        accumulator = initFromCollection
          ? (initFromCollection = false, value)
          : iteratee(accumulator, value, index, collection);
      });
      return accumulator;
    }

    /**
     * The base implementation of `setData` without support for hot loop detection.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var baseSetData = !metaMap ? identity : function(func, data) {
      metaMap.set(func, data);
      return func;
    };

    /**
     * The base implementation of `_.slice` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseSlice(array, start, end) {
      var index = -1,
          length = array.length;

      start = start == null ? 0 : (+start || 0);
      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = (end === undefined || end > length) ? length : (+end || 0);
      if (end < 0) {
        end += length;
      }
      length = start > end ? 0 : ((end - start) >>> 0);
      start >>>= 0;

      var result = Array(length);
      while (++index < length) {
        result[index] = array[index + start];
      }
      return result;
    }

    /**
     * The base implementation of `_.some` without support for callback shorthands
     * and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     */
    function baseSome(collection, predicate) {
      var result;

      baseEach(collection, function(value, index, collection) {
        result = predicate(value, index, collection);
        return !result;
      });
      return !!result;
    }

    /**
     * The base implementation of `_.sortBy` which uses `comparer` to define
     * the sort order of `array` and replaces criteria objects with their
     * corresponding values.
     *
     * @private
     * @param {Array} array The array to sort.
     * @param {Function} comparer The function to define sort order.
     * @returns {Array} Returns `array`.
     */
    function baseSortBy(array, comparer) {
      var length = array.length;

      array.sort(comparer);
      while (length--) {
        array[length] = array[length].value;
      }
      return array;
    }

    /**
     * The base implementation of `_.sortByOrder` without param guards.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
     * @param {boolean[]} orders The sort orders of `iteratees`.
     * @returns {Array} Returns the new sorted array.
     */
    function baseSortByOrder(collection, iteratees, orders) {
      var callback = getCallback(),
          index = -1;

      iteratees = arrayMap(iteratees, function(iteratee) { return callback(iteratee); });

      var result = baseMap(collection, function(value) {
        var criteria = arrayMap(iteratees, function(iteratee) { return iteratee(value); });
        return { 'criteria': criteria, 'index': ++index, 'value': value };
      });

      return baseSortBy(result, function(object, other) {
        return compareMultiple(object, other, orders);
      });
    }

    /**
     * The base implementation of `_.sum` without support for callback shorthands
     * and `this` binding.
     *
     * @private
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {number} Returns the sum.
     */
    function baseSum(collection, iteratee) {
      var result = 0;
      baseEach(collection, function(value, index, collection) {
        result += +iteratee(value, index, collection) || 0;
      });
      return result;
    }

    /**
     * The base implementation of `_.uniq` without support for callback shorthands
     * and `this` binding.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The function invoked per iteration.
     * @returns {Array} Returns the new duplicate-value-free array.
     */
    function baseUniq(array, iteratee) {
      var index = -1,
          indexOf = getIndexOf(),
          length = array.length,
          isCommon = indexOf == baseIndexOf,
          isLarge = isCommon && length >= LARGE_ARRAY_SIZE,
          seen = isLarge ? createCache() : null,
          result = [];

      if (seen) {
        indexOf = cacheIndexOf;
        isCommon = false;
      } else {
        isLarge = false;
        seen = iteratee ? [] : result;
      }
      outer:
      while (++index < length) {
        var value = array[index],
            computed = iteratee ? iteratee(value, index, array) : value;

        if (isCommon && value === value) {
          var seenIndex = seen.length;
          while (seenIndex--) {
            if (seen[seenIndex] === computed) {
              continue outer;
            }
          }
          if (iteratee) {
            seen.push(computed);
          }
          result.push(value);
        }
        else if (indexOf(seen, computed, 0) < 0) {
          if (iteratee || isLarge) {
            seen.push(computed);
          }
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.values` and `_.valuesIn` which creates an
     * array of `object` property values corresponding to the property names
     * of `props`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array} props The property names to get values for.
     * @returns {Object} Returns the array of property values.
     */
    function baseValues(object, props) {
      var index = -1,
          length = props.length,
          result = Array(length);

      while (++index < length) {
        result[index] = object[props[index]];
      }
      return result;
    }

    /**
     * The base implementation of `_.dropRightWhile`, `_.dropWhile`, `_.takeRightWhile`,
     * and `_.takeWhile` without support for callback shorthands and `this` binding.
     *
     * @private
     * @param {Array} array The array to query.
     * @param {Function} predicate The function invoked per iteration.
     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseWhile(array, predicate, isDrop, fromRight) {
      var length = array.length,
          index = fromRight ? length : -1;

      while ((fromRight ? index-- : ++index < length) && predicate(array[index], index, array)) {}
      return isDrop
        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
    }

    /**
     * The base implementation of `wrapperValue` which returns the result of
     * performing a sequence of actions on the unwrapped `value`, where each
     * successive action is supplied the return value of the previous.
     *
     * @private
     * @param {*} value The unwrapped value.
     * @param {Array} actions Actions to peform to resolve the unwrapped value.
     * @returns {*} Returns the resolved value.
     */
    function baseWrapperValue(value, actions) {
      var result = value;
      if (result instanceof LazyWrapper) {
        result = result.value();
      }
      var index = -1,
          length = actions.length;

      while (++index < length) {
        var action = actions[index];
        result = action.func.apply(action.thisArg, arrayPush([result], action.args));
      }
      return result;
    }

    /**
     * Performs a binary search of `array` to determine the index at which `value`
     * should be inserted into `array` in order to maintain its sort order.
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function binaryIndex(array, value, retHighest) {
      var low = 0,
          high = array ? array.length : low;

      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
        while (low < high) {
          var mid = (low + high) >>> 1,
              computed = array[mid];

          if ((retHighest ? (computed <= value) : (computed < value)) && computed !== null) {
            low = mid + 1;
          } else {
            high = mid;
          }
        }
        return high;
      }
      return binaryIndexBy(array, value, identity, retHighest);
    }

    /**
     * This function is like `binaryIndex` except that it invokes `iteratee` for
     * `value` and each element of `array` to compute their sort ranking. The
     * iteratee is invoked with one argument; (value).
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function binaryIndexBy(array, value, iteratee, retHighest) {
      value = iteratee(value);

      var low = 0,
          high = array ? array.length : 0,
          valIsNaN = value !== value,
          valIsNull = value === null,
          valIsUndef = value === undefined;

      while (low < high) {
        var mid = nativeFloor((low + high) / 2),
            computed = iteratee(array[mid]),
            isDef = computed !== undefined,
            isReflexive = computed === computed;

        if (valIsNaN) {
          var setLow = isReflexive || retHighest;
        } else if (valIsNull) {
          setLow = isReflexive && isDef && (retHighest || computed != null);
        } else if (valIsUndef) {
          setLow = isReflexive && (retHighest || isDef);
        } else if (computed == null) {
          setLow = false;
        } else {
          setLow = retHighest ? (computed <= value) : (computed < value);
        }
        if (setLow) {
          low = mid + 1;
        } else {
          high = mid;
        }
      }
      return nativeMin(high, MAX_ARRAY_INDEX);
    }

    /**
     * A specialized version of `baseCallback` which only supports `this` binding
     * and specifying the number of arguments to provide to `func`.
     *
     * @private
     * @param {Function} func The function to bind.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {number} [argCount] The number of arguments to provide to `func`.
     * @returns {Function} Returns the callback.
     */
    function bindCallback(func, thisArg, argCount) {
      if (typeof func != 'function') {
        return identity;
      }
      if (thisArg === undefined) {
        return func;
      }
      switch (argCount) {
        case 1: return function(value) {
          return func.call(thisArg, value);
        };
        case 3: return function(value, index, collection) {
          return func.call(thisArg, value, index, collection);
        };
        case 4: return function(accumulator, value, index, collection) {
          return func.call(thisArg, accumulator, value, index, collection);
        };
        case 5: return function(value, other, key, object, source) {
          return func.call(thisArg, value, other, key, object, source);
        };
      }
      return function() {
        return func.apply(thisArg, arguments);
      };
    }

    /**
     * Creates a clone of the given array buffer.
     *
     * @private
     * @param {ArrayBuffer} buffer The array buffer to clone.
     * @returns {ArrayBuffer} Returns the cloned array buffer.
     */
    function bufferClone(buffer) {
      var result = new ArrayBuffer(buffer.byteLength),
          view = new Uint8Array(result);

      view.set(new Uint8Array(buffer));
      return result;
    }

    /**
     * Creates an array that is the composition of partially applied arguments,
     * placeholders, and provided arguments into a single array of arguments.
     *
     * @private
     * @param {Array|Object} args The provided arguments.
     * @param {Array} partials The arguments to prepend to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgs(args, partials, holders) {
      var holdersLength = holders.length,
          argsIndex = -1,
          argsLength = nativeMax(args.length - holdersLength, 0),
          leftIndex = -1,
          leftLength = partials.length,
          result = Array(leftLength + argsLength);

      while (++leftIndex < leftLength) {
        result[leftIndex] = partials[leftIndex];
      }
      while (++argsIndex < holdersLength) {
        result[holders[argsIndex]] = args[argsIndex];
      }
      while (argsLength--) {
        result[leftIndex++] = args[argsIndex++];
      }
      return result;
    }

    /**
     * This function is like `composeArgs` except that the arguments composition
     * is tailored for `_.partialRight`.
     *
     * @private
     * @param {Array|Object} args The provided arguments.
     * @param {Array} partials The arguments to append to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgsRight(args, partials, holders) {
      var holdersIndex = -1,
          holdersLength = holders.length,
          argsIndex = -1,
          argsLength = nativeMax(args.length - holdersLength, 0),
          rightIndex = -1,
          rightLength = partials.length,
          result = Array(argsLength + rightLength);

      while (++argsIndex < argsLength) {
        result[argsIndex] = args[argsIndex];
      }
      var offset = argsIndex;
      while (++rightIndex < rightLength) {
        result[offset + rightIndex] = partials[rightIndex];
      }
      while (++holdersIndex < holdersLength) {
        result[offset + holders[holdersIndex]] = args[argsIndex++];
      }
      return result;
    }

    /**
     * Creates a `_.countBy`, `_.groupBy`, `_.indexBy`, or `_.partition` function.
     *
     * @private
     * @param {Function} setter The function to set keys and values of the accumulator object.
     * @param {Function} [initializer] The function to initialize the accumulator object.
     * @returns {Function} Returns the new aggregator function.
     */
    function createAggregator(setter, initializer) {
      return function(collection, iteratee, thisArg) {
        var result = initializer ? initializer() : {};
        iteratee = getCallback(iteratee, thisArg, 3);

        if (isArray(collection)) {
          var index = -1,
              length = collection.length;

          while (++index < length) {
            var value = collection[index];
            setter(result, value, iteratee(value, index, collection), collection);
          }
        } else {
          baseEach(collection, function(value, key, collection) {
            setter(result, value, iteratee(value, key, collection), collection);
          });
        }
        return result;
      };
    }

    /**
     * Creates a `_.assign`, `_.defaults`, or `_.merge` function.
     *
     * @private
     * @param {Function} assigner The function to assign values.
     * @returns {Function} Returns the new assigner function.
     */
    function createAssigner(assigner) {
      return restParam(function(object, sources) {
        var index = -1,
            length = object == null ? 0 : sources.length,
            customizer = length > 2 ? sources[length - 2] : undefined,
            guard = length > 2 ? sources[2] : undefined,
            thisArg = length > 1 ? sources[length - 1] : undefined;

        if (typeof customizer == 'function') {
          customizer = bindCallback(customizer, thisArg, 5);
          length -= 2;
        } else {
          customizer = typeof thisArg == 'function' ? thisArg : undefined;
          length -= (customizer ? 1 : 0);
        }
        if (guard && isIterateeCall(sources[0], sources[1], guard)) {
          customizer = length < 3 ? undefined : customizer;
          length = 1;
        }
        while (++index < length) {
          var source = sources[index];
          if (source) {
            assigner(object, source, customizer);
          }
        }
        return object;
      });
    }

    /**
     * Creates a `baseEach` or `baseEachRight` function.
     *
     * @private
     * @param {Function} eachFunc The function to iterate over a collection.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseEach(eachFunc, fromRight) {
      return function(collection, iteratee) {
        var length = collection ? getLength(collection) : 0;
        if (!isLength(length)) {
          return eachFunc(collection, iteratee);
        }
        var index = fromRight ? length : -1,
            iterable = toObject(collection);

        while ((fromRight ? index-- : ++index < length)) {
          if (iteratee(iterable[index], index, iterable) === false) {
            break;
          }
        }
        return collection;
      };
    }

    /**
     * Creates a base function for `_.forIn` or `_.forInRight`.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseFor(fromRight) {
      return function(object, iteratee, keysFunc) {
        var iterable = toObject(object),
            props = keysFunc(object),
            length = props.length,
            index = fromRight ? length : -1;

        while ((fromRight ? index-- : ++index < length)) {
          var key = props[index];
          if (iteratee(iterable[key], key, iterable) === false) {
            break;
          }
        }
        return object;
      };
    }

    /**
     * Creates a function that wraps `func` and invokes it with the `this`
     * binding of `thisArg`.
     *
     * @private
     * @param {Function} func The function to bind.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @returns {Function} Returns the new bound function.
     */
    function createBindWrapper(func, thisArg) {
      var Ctor = createCtorWrapper(func);

      function wrapper() {
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return fn.apply(thisArg, arguments);
      }
      return wrapper;
    }

    /**
     * Creates a `Set` cache object to optimize linear searches of large arrays.
     *
     * @private
     * @param {Array} [values] The values to cache.
     * @returns {null|Object} Returns the new cache object if `Set` is supported, else `null`.
     */
    function createCache(values) {
      return (nativeCreate && Set) ? new SetCache(values) : null;
    }

    /**
     * Creates a function that produces compound words out of the words in a
     * given string.
     *
     * @private
     * @param {Function} callback The function to combine each word.
     * @returns {Function} Returns the new compounder function.
     */
    function createCompounder(callback) {
      return function(string) {
        var index = -1,
            array = words(deburr(string)),
            length = array.length,
            result = '';

        while (++index < length) {
          result = callback(result, array[index], index);
        }
        return result;
      };
    }

    /**
     * Creates a function that produces an instance of `Ctor` regardless of
     * whether it was invoked as part of a `new` expression or by `call` or `apply`.
     *
     * @private
     * @param {Function} Ctor The constructor to wrap.
     * @returns {Function} Returns the new wrapped function.
     */
    function createCtorWrapper(Ctor) {
      return function() {
        // Use a `switch` statement to work with class constructors.
        // See http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
        // for more details.
        var args = arguments;
        switch (args.length) {
          case 0: return new Ctor;
          case 1: return new Ctor(args[0]);
          case 2: return new Ctor(args[0], args[1]);
          case 3: return new Ctor(args[0], args[1], args[2]);
          case 4: return new Ctor(args[0], args[1], args[2], args[3]);
          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
        }
        var thisBinding = baseCreate(Ctor.prototype),
            result = Ctor.apply(thisBinding, args);

        // Mimic the constructor's `return` behavior.
        // See https://es5.github.io/#x13.2.2 for more details.
        return isObject(result) ? result : thisBinding;
      };
    }

    /**
     * Creates a `_.curry` or `_.curryRight` function.
     *
     * @private
     * @param {boolean} flag The curry bit flag.
     * @returns {Function} Returns the new curry function.
     */
    function createCurry(flag) {
      function curryFunc(func, arity, guard) {
        if (guard && isIterateeCall(func, arity, guard)) {
          arity = undefined;
        }
        var result = createWrapper(func, flag, undefined, undefined, undefined, undefined, undefined, arity);
        result.placeholder = curryFunc.placeholder;
        return result;
      }
      return curryFunc;
    }

    /**
     * Creates a `_.defaults` or `_.defaultsDeep` function.
     *
     * @private
     * @param {Function} assigner The function to assign values.
     * @param {Function} customizer The function to customize assigned values.
     * @returns {Function} Returns the new defaults function.
     */
    function createDefaults(assigner, customizer) {
      return restParam(function(args) {
        var object = args[0];
        if (object == null) {
          return object;
        }
        args.push(customizer);
        return assigner.apply(undefined, args);
      });
    }

    /**
     * Creates a `_.max` or `_.min` function.
     *
     * @private
     * @param {Function} comparator The function used to compare values.
     * @param {*} exValue The initial extremum value.
     * @returns {Function} Returns the new extremum function.
     */
    function createExtremum(comparator, exValue) {
      return function(collection, iteratee, thisArg) {
        if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
          iteratee = undefined;
        }
        iteratee = getCallback(iteratee, thisArg, 3);
        if (iteratee.length == 1) {
          collection = isArray(collection) ? collection : toIterable(collection);
          var result = arrayExtremum(collection, iteratee, comparator, exValue);
          if (!(collection.length && result === exValue)) {
            return result;
          }
        }
        return baseExtremum(collection, iteratee, comparator, exValue);
      };
    }

    /**
     * Creates a `_.find` or `_.findLast` function.
     *
     * @private
     * @param {Function} eachFunc The function to iterate over a collection.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new find function.
     */
    function createFind(eachFunc, fromRight) {
      return function(collection, predicate, thisArg) {
        predicate = getCallback(predicate, thisArg, 3);
        if (isArray(collection)) {
          var index = baseFindIndex(collection, predicate, fromRight);
          return index > -1 ? collection[index] : undefined;
        }
        return baseFind(collection, predicate, eachFunc);
      };
    }

    /**
     * Creates a `_.findIndex` or `_.findLastIndex` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new find function.
     */
    function createFindIndex(fromRight) {
      return function(array, predicate, thisArg) {
        if (!(array && array.length)) {
          return -1;
        }
        predicate = getCallback(predicate, thisArg, 3);
        return baseFindIndex(array, predicate, fromRight);
      };
    }

    /**
     * Creates a `_.findKey` or `_.findLastKey` function.
     *
     * @private
     * @param {Function} objectFunc The function to iterate over an object.
     * @returns {Function} Returns the new find function.
     */
    function createFindKey(objectFunc) {
      return function(object, predicate, thisArg) {
        predicate = getCallback(predicate, thisArg, 3);
        return baseFind(object, predicate, objectFunc, true);
      };
    }

    /**
     * Creates a `_.flow` or `_.flowRight` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new flow function.
     */
    function createFlow(fromRight) {
      return function() {
        var wrapper,
            length = arguments.length,
            index = fromRight ? length : -1,
            leftIndex = 0,
            funcs = Array(length);

        while ((fromRight ? index-- : ++index < length)) {
          var func = funcs[leftIndex++] = arguments[index];
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          if (!wrapper && LodashWrapper.prototype.thru && getFuncName(func) == 'wrapper') {
            wrapper = new LodashWrapper([], true);
          }
        }
        index = wrapper ? -1 : length;
        while (++index < length) {
          func = funcs[index];

          var funcName = getFuncName(func),
              data = funcName == 'wrapper' ? getData(func) : undefined;

          if (data && isLaziable(data[0]) && data[1] == (ARY_FLAG | CURRY_FLAG | PARTIAL_FLAG | REARG_FLAG) && !data[4].length && data[9] == 1) {
            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
          } else {
            wrapper = (func.length == 1 && isLaziable(func)) ? wrapper[funcName]() : wrapper.thru(func);
          }
        }
        return function() {
          var args = arguments,
              value = args[0];

          if (wrapper && args.length == 1 && isArray(value) && value.length >= LARGE_ARRAY_SIZE) {
            return wrapper.plant(value).value();
          }
          var index = 0,
              result = length ? funcs[index].apply(this, args) : value;

          while (++index < length) {
            result = funcs[index].call(this, result);
          }
          return result;
        };
      };
    }

    /**
     * Creates a function for `_.forEach` or `_.forEachRight`.
     *
     * @private
     * @param {Function} arrayFunc The function to iterate over an array.
     * @param {Function} eachFunc The function to iterate over a collection.
     * @returns {Function} Returns the new each function.
     */
    function createForEach(arrayFunc, eachFunc) {
      return function(collection, iteratee, thisArg) {
        return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
          ? arrayFunc(collection, iteratee)
          : eachFunc(collection, bindCallback(iteratee, thisArg, 3));
      };
    }

    /**
     * Creates a function for `_.forIn` or `_.forInRight`.
     *
     * @private
     * @param {Function} objectFunc The function to iterate over an object.
     * @returns {Function} Returns the new each function.
     */
    function createForIn(objectFunc) {
      return function(object, iteratee, thisArg) {
        if (typeof iteratee != 'function' || thisArg !== undefined) {
          iteratee = bindCallback(iteratee, thisArg, 3);
        }
        return objectFunc(object, iteratee, keysIn);
      };
    }

    /**
     * Creates a function for `_.forOwn` or `_.forOwnRight`.
     *
     * @private
     * @param {Function} objectFunc The function to iterate over an object.
     * @returns {Function} Returns the new each function.
     */
    function createForOwn(objectFunc) {
      return function(object, iteratee, thisArg) {
        if (typeof iteratee != 'function' || thisArg !== undefined) {
          iteratee = bindCallback(iteratee, thisArg, 3);
        }
        return objectFunc(object, iteratee);
      };
    }

    /**
     * Creates a function for `_.mapKeys` or `_.mapValues`.
     *
     * @private
     * @param {boolean} [isMapKeys] Specify mapping keys instead of values.
     * @returns {Function} Returns the new map function.
     */
    function createObjectMapper(isMapKeys) {
      return function(object, iteratee, thisArg) {
        var result = {};
        iteratee = getCallback(iteratee, thisArg, 3);

        baseForOwn(object, function(value, key, object) {
          var mapped = iteratee(value, key, object);
          key = isMapKeys ? mapped : key;
          value = isMapKeys ? value : mapped;
          result[key] = value;
        });
        return result;
      };
    }

    /**
     * Creates a function for `_.padLeft` or `_.padRight`.
     *
     * @private
     * @param {boolean} [fromRight] Specify padding from the right.
     * @returns {Function} Returns the new pad function.
     */
    function createPadDir(fromRight) {
      return function(string, length, chars) {
        string = baseToString(string);
        return (fromRight ? string : '') + createPadding(string, length, chars) + (fromRight ? '' : string);
      };
    }

    /**
     * Creates a `_.partial` or `_.partialRight` function.
     *
     * @private
     * @param {boolean} flag The partial bit flag.
     * @returns {Function} Returns the new partial function.
     */
    function createPartial(flag) {
      var partialFunc = restParam(function(func, partials) {
        var holders = replaceHolders(partials, partialFunc.placeholder);
        return createWrapper(func, flag, undefined, partials, holders);
      });
      return partialFunc;
    }

    /**
     * Creates a function for `_.reduce` or `_.reduceRight`.
     *
     * @private
     * @param {Function} arrayFunc The function to iterate over an array.
     * @param {Function} eachFunc The function to iterate over a collection.
     * @returns {Function} Returns the new each function.
     */
    function createReduce(arrayFunc, eachFunc) {
      return function(collection, iteratee, accumulator, thisArg) {
        var initFromArray = arguments.length < 3;
        return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
          ? arrayFunc(collection, iteratee, accumulator, initFromArray)
          : baseReduce(collection, getCallback(iteratee, thisArg, 4), accumulator, initFromArray, eachFunc);
      };
    }

    /**
     * Creates a function that wraps `func` and invokes it with optional `this`
     * binding of, partial application, and currying.
     *
     * @private
     * @param {Function|string} func The function or method name to reference.
     * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to prepend to those provided to the new function.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [partialsRight] The arguments to append to those provided to the new function.
     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createHybridWrapper(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
      var isAry = bitmask & ARY_FLAG,
          isBind = bitmask & BIND_FLAG,
          isBindKey = bitmask & BIND_KEY_FLAG,
          isCurry = bitmask & CURRY_FLAG,
          isCurryBound = bitmask & CURRY_BOUND_FLAG,
          isCurryRight = bitmask & CURRY_RIGHT_FLAG,
          Ctor = isBindKey ? undefined : createCtorWrapper(func);

      function wrapper() {
        // Avoid `arguments` object use disqualifying optimizations by
        // converting it to an array before providing it to other functions.
        var length = arguments.length,
            index = length,
            args = Array(length);

        while (index--) {
          args[index] = arguments[index];
        }
        if (partials) {
          args = composeArgs(args, partials, holders);
        }
        if (partialsRight) {
          args = composeArgsRight(args, partialsRight, holdersRight);
        }
        if (isCurry || isCurryRight) {
          var placeholder = wrapper.placeholder,
              argsHolders = replaceHolders(args, placeholder);

          length -= argsHolders.length;
          if (length < arity) {
            var newArgPos = argPos ? arrayCopy(argPos) : undefined,
                newArity = nativeMax(arity - length, 0),
                newsHolders = isCurry ? argsHolders : undefined,
                newHoldersRight = isCurry ? undefined : argsHolders,
                newPartials = isCurry ? args : undefined,
                newPartialsRight = isCurry ? undefined : args;

            bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG);
            bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG);

            if (!isCurryBound) {
              bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
            }
            var newData = [func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight, newHoldersRight, newArgPos, ary, newArity],
                result = createHybridWrapper.apply(undefined, newData);

            if (isLaziable(func)) {
              setData(result, newData);
            }
            result.placeholder = placeholder;
            return result;
          }
        }
        var thisBinding = isBind ? thisArg : this,
            fn = isBindKey ? thisBinding[func] : func;

        if (argPos) {
          args = reorder(args, argPos);
        }
        if (isAry && ary < args.length) {
          args.length = ary;
        }
        if (this && this !== root && this instanceof wrapper) {
          fn = Ctor || createCtorWrapper(func);
        }
        return fn.apply(thisBinding, args);
      }
      return wrapper;
    }

    /**
     * Creates the padding required for `string` based on the given `length`.
     * The `chars` string is truncated if the number of characters exceeds `length`.
     *
     * @private
     * @param {string} string The string to create padding for.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the pad for `string`.
     */
    function createPadding(string, length, chars) {
      var strLength = string.length;
      length = +length;

      if (strLength >= length || !nativeIsFinite(length)) {
        return '';
      }
      var padLength = length - strLength;
      chars = chars == null ? ' ' : (chars + '');
      return repeat(chars, nativeCeil(padLength / chars.length)).slice(0, padLength);
    }

    /**
     * Creates a function that wraps `func` and invokes it with the optional `this`
     * binding of `thisArg` and the `partials` prepended to those provided to
     * the wrapper.
     *
     * @private
     * @param {Function} func The function to partially apply arguments to.
     * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {Array} partials The arguments to prepend to those provided to the new function.
     * @returns {Function} Returns the new bound function.
     */
    function createPartialWrapper(func, bitmask, thisArg, partials) {
      var isBind = bitmask & BIND_FLAG,
          Ctor = createCtorWrapper(func);

      function wrapper() {
        // Avoid `arguments` object use disqualifying optimizations by
        // converting it to an array before providing it `func`.
        var argsIndex = -1,
            argsLength = arguments.length,
            leftIndex = -1,
            leftLength = partials.length,
            args = Array(leftLength + argsLength);

        while (++leftIndex < leftLength) {
          args[leftIndex] = partials[leftIndex];
        }
        while (argsLength--) {
          args[leftIndex++] = arguments[++argsIndex];
        }
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return fn.apply(isBind ? thisArg : this, args);
      }
      return wrapper;
    }

    /**
     * Creates a `_.ceil`, `_.floor`, or `_.round` function.
     *
     * @private
     * @param {string} methodName The name of the `Math` method to use when rounding.
     * @returns {Function} Returns the new round function.
     */
    function createRound(methodName) {
      var func = Math[methodName];
      return function(number, precision) {
        precision = precision === undefined ? 0 : (+precision || 0);
        if (precision) {
          precision = pow(10, precision);
          return func(number * precision) / precision;
        }
        return func(number);
      };
    }

    /**
     * Creates a `_.sortedIndex` or `_.sortedLastIndex` function.
     *
     * @private
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {Function} Returns the new index function.
     */
    function createSortedIndex(retHighest) {
      return function(array, value, iteratee, thisArg) {
        var callback = getCallback(iteratee);
        return (iteratee == null && callback === baseCallback)
          ? binaryIndex(array, value, retHighest)
          : binaryIndexBy(array, value, callback(iteratee, thisArg, 1), retHighest);
      };
    }

    /**
     * Creates a function that either curries or invokes `func` with optional
     * `this` binding and partially applied arguments.
     *
     * @private
     * @param {Function|string} func The function or method name to reference.
     * @param {number} bitmask The bitmask of flags.
     *  The bitmask may be composed of the following flags:
     *     1 - `_.bind`
     *     2 - `_.bindKey`
     *     4 - `_.curry` or `_.curryRight` of a bound function
     *     8 - `_.curry`
     *    16 - `_.curryRight`
     *    32 - `_.partial`
     *    64 - `_.partialRight`
     *   128 - `_.rearg`
     *   256 - `_.ary`
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to be partially applied.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createWrapper(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
      var isBindKey = bitmask & BIND_KEY_FLAG;
      if (!isBindKey && typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var length = partials ? partials.length : 0;
      if (!length) {
        bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG);
        partials = holders = undefined;
      }
      length -= (holders ? holders.length : 0);
      if (bitmask & PARTIAL_RIGHT_FLAG) {
        var partialsRight = partials,
            holdersRight = holders;

        partials = holders = undefined;
      }
      var data = isBindKey ? undefined : getData(func),
          newData = [func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity];

      if (data) {
        mergeData(newData, data);
        bitmask = newData[1];
        arity = newData[9];
      }
      newData[9] = arity == null
        ? (isBindKey ? 0 : func.length)
        : (nativeMax(arity - length, 0) || 0);

      if (bitmask == BIND_FLAG) {
        var result = createBindWrapper(newData[0], newData[2]);
      } else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !newData[4].length) {
        result = createPartialWrapper.apply(undefined, newData);
      } else {
        result = createHybridWrapper.apply(undefined, newData);
      }
      var setter = data ? baseSetData : setData;
      return setter(result, newData);
    }

    /**
     * A specialized version of `baseIsEqualDeep` for arrays with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Array} array The array to compare.
     * @param {Array} other The other array to compare.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Function} [customizer] The function to customize comparing arrays.
     * @param {boolean} [isLoose] Specify performing partial comparisons.
     * @param {Array} [stackA] Tracks traversed `value` objects.
     * @param {Array} [stackB] Tracks traversed `other` objects.
     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
     */
    function equalArrays(array, other, equalFunc, customizer, isLoose, stackA, stackB) {
      var index = -1,
          arrLength = array.length,
          othLength = other.length;

      if (arrLength != othLength && !(isLoose && othLength > arrLength)) {
        return false;
      }
      // Ignore non-index properties.
      while (++index < arrLength) {
        var arrValue = array[index],
            othValue = other[index],
            result = customizer ? customizer(isLoose ? othValue : arrValue, isLoose ? arrValue : othValue, index) : undefined;

        if (result !== undefined) {
          if (result) {
            continue;
          }
          return false;
        }
        // Recursively compare arrays (susceptible to call stack limits).
        if (isLoose) {
          if (!arraySome(other, function(othValue) {
                return arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB);
              })) {
            return false;
          }
        } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB))) {
          return false;
        }
      }
      return true;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for comparing objects of
     * the same `toStringTag`.
     *
     * **Note:** This function only supports comparing values with tags of
     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {string} tag The `toStringTag` of the objects to compare.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalByTag(object, other, tag) {
      switch (tag) {
        case boolTag:
        case dateTag:
          // Coerce dates and booleans to numbers, dates to milliseconds and booleans
          // to `1` or `0` treating invalid dates coerced to `NaN` as not equal.
          return +object == +other;

        case errorTag:
          return object.name == other.name && object.message == other.message;

        case numberTag:
          // Treat `NaN` vs. `NaN` as equal.
          return (object != +object)
            ? other != +other
            : object == +other;

        case regexpTag:
        case stringTag:
          // Coerce regexes to strings and treat strings primitives and string
          // objects as equal. See https://es5.github.io/#x15.10.6.4 for more details.
          return object == (other + '');
      }
      return false;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for objects with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Function} [customizer] The function to customize comparing values.
     * @param {boolean} [isLoose] Specify performing partial comparisons.
     * @param {Array} [stackA] Tracks traversed `value` objects.
     * @param {Array} [stackB] Tracks traversed `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalObjects(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
      var objProps = keys(object),
          objLength = objProps.length,
          othProps = keys(other),
          othLength = othProps.length;

      if (objLength != othLength && !isLoose) {
        return false;
      }
      var index = objLength;
      while (index--) {
        var key = objProps[index];
        if (!(isLoose ? key in other : hasOwnProperty.call(other, key))) {
          return false;
        }
      }
      var skipCtor = isLoose;
      while (++index < objLength) {
        key = objProps[index];
        var objValue = object[key],
            othValue = other[key],
            result = customizer ? customizer(isLoose ? othValue : objValue, isLoose? objValue : othValue, key) : undefined;

        // Recursively compare objects (susceptible to call stack limits).
        if (!(result === undefined ? equalFunc(objValue, othValue, customizer, isLoose, stackA, stackB) : result)) {
          return false;
        }
        skipCtor || (skipCtor = key == 'constructor');
      }
      if (!skipCtor) {
        var objCtor = object.constructor,
            othCtor = other.constructor;

        // Non `Object` object instances with different constructors are not equal.
        if (objCtor != othCtor &&
            ('constructor' in object && 'constructor' in other) &&
            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
              typeof othCtor == 'function' && othCtor instanceof othCtor)) {
          return false;
        }
      }
      return true;
    }

    /**
     * Gets the appropriate "callback" function. If the `_.callback` method is
     * customized this function returns the custom method, otherwise it returns
     * the `baseCallback` function. If arguments are provided the chosen function
     * is invoked with them and its result is returned.
     *
     * @private
     * @returns {Function} Returns the chosen function or its result.
     */
    function getCallback(func, thisArg, argCount) {
      var result = lodash.callback || callback;
      result = result === callback ? baseCallback : result;
      return argCount ? result(func, thisArg, argCount) : result;
    }

    /**
     * Gets metadata for `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {*} Returns the metadata for `func`.
     */
    var getData = !metaMap ? noop : function(func) {
      return metaMap.get(func);
    };

    /**
     * Gets the name of `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {string} Returns the function name.
     */
    function getFuncName(func) {
      var result = func.name,
          array = realNames[result],
          length = array ? array.length : 0;

      while (length--) {
        var data = array[length],
            otherFunc = data.func;
        if (otherFunc == null || otherFunc == func) {
          return data.name;
        }
      }
      return result;
    }

    /**
     * Gets the appropriate "indexOf" function. If the `_.indexOf` method is
     * customized this function returns the custom method, otherwise it returns
     * the `baseIndexOf` function. If arguments are provided the chosen function
     * is invoked with them and its result is returned.
     *
     * @private
     * @returns {Function|number} Returns the chosen function or its result.
     */
    function getIndexOf(collection, target, fromIndex) {
      var result = lodash.indexOf || indexOf;
      result = result === indexOf ? baseIndexOf : result;
      return collection ? result(collection, target, fromIndex) : result;
    }

    /**
     * Gets the "length" property value of `object`.
     *
     * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
     * that affects Safari on at least iOS 8.1-8.3 ARM64.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {*} Returns the "length" value.
     */
    var getLength = baseProperty('length');

    /**
     * Gets the propery names, values, and compare flags of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the match data of `object`.
     */
    function getMatchData(object) {
      var result = pairs(object),
          length = result.length;

      while (length--) {
        result[length][2] = isStrictComparable(result[length][1]);
      }
      return result;
    }

    /**
     * Gets the native function at `key` of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {string} key The key of the method to get.
     * @returns {*} Returns the function if it's native, else `undefined`.
     */
    function getNative(object, key) {
      var value = object == null ? undefined : object[key];
      return isNative(value) ? value : undefined;
    }

    /**
     * Gets the view, applying any `transforms` to the `start` and `end` positions.
     *
     * @private
     * @param {number} start The start of the view.
     * @param {number} end The end of the view.
     * @param {Array} transforms The transformations to apply to the view.
     * @returns {Object} Returns an object containing the `start` and `end`
     *  positions of the view.
     */
    function getView(start, end, transforms) {
      var index = -1,
          length = transforms.length;

      while (++index < length) {
        var data = transforms[index],
            size = data.size;

        switch (data.type) {
          case 'drop':      start += size; break;
          case 'dropRight': end -= size; break;
          case 'take':      end = nativeMin(end, start + size); break;
          case 'takeRight': start = nativeMax(start, end - size); break;
        }
      }
      return { 'start': start, 'end': end };
    }

    /**
     * Initializes an array clone.
     *
     * @private
     * @param {Array} array The array to clone.
     * @returns {Array} Returns the initialized clone.
     */
    function initCloneArray(array) {
      var length = array.length,
          result = new array.constructor(length);

      // Add array properties assigned by `RegExp#exec`.
      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
        result.index = array.index;
        result.input = array.input;
      }
      return result;
    }

    /**
     * Initializes an object clone.
     *
     * @private
     * @param {Object} object The object to clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneObject(object) {
      var Ctor = object.constructor;
      if (!(typeof Ctor == 'function' && Ctor instanceof Ctor)) {
        Ctor = Object;
      }
      return new Ctor;
    }

    /**
     * Initializes an object clone based on its `toStringTag`.
     *
     * **Note:** This function only supports cloning values with tags of
     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to clone.
     * @param {string} tag The `toStringTag` of the object to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneByTag(object, tag, isDeep) {
      var Ctor = object.constructor;
      switch (tag) {
        case arrayBufferTag:
          return bufferClone(object);

        case boolTag:
        case dateTag:
          return new Ctor(+object);

        case float32Tag: case float64Tag:
        case int8Tag: case int16Tag: case int32Tag:
        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
          var buffer = object.buffer;
          return new Ctor(isDeep ? bufferClone(buffer) : buffer, object.byteOffset, object.length);

        case numberTag:
        case stringTag:
          return new Ctor(object);

        case regexpTag:
          var result = new Ctor(object.source, reFlags.exec(object));
          result.lastIndex = object.lastIndex;
      }
      return result;
    }

    /**
     * Invokes the method at `path` on `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the method to invoke.
     * @param {Array} args The arguments to invoke the method with.
     * @returns {*} Returns the result of the invoked method.
     */
    function invokePath(object, path, args) {
      if (object != null && !isKey(path, object)) {
        path = toPath(path);
        object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
        path = last(path);
      }
      var func = object == null ? object : object[path];
      return func == null ? undefined : func.apply(object, args);
    }

    /**
     * Checks if `value` is array-like.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
     */
    function isArrayLike(value) {
      return value != null && isLength(getLength(value));
    }

    /**
     * Checks if `value` is a valid array-like index.
     *
     * @private
     * @param {*} value The value to check.
     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
     */
    function isIndex(value, length) {
      value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
      length = length == null ? MAX_SAFE_INTEGER : length;
      return value > -1 && value % 1 == 0 && value < length;
    }

    /**
     * Checks if the provided arguments are from an iteratee call.
     *
     * @private
     * @param {*} value The potential iteratee value argument.
     * @param {*} index The potential iteratee index or key argument.
     * @param {*} object The potential iteratee object argument.
     * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
     */
    function isIterateeCall(value, index, object) {
      if (!isObject(object)) {
        return false;
      }
      var type = typeof index;
      if (type == 'number'
          ? (isArrayLike(object) && isIndex(index, object.length))
          : (type == 'string' && index in object)) {
        var other = object[index];
        return value === value ? (value === other) : (other !== other);
      }
      return false;
    }

    /**
     * Checks if `value` is a property name and not a property path.
     *
     * @private
     * @param {*} value The value to check.
     * @param {Object} [object] The object to query keys on.
     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
     */
    function isKey(value, object) {
      var type = typeof value;
      if ((type == 'string' && reIsPlainProp.test(value)) || type == 'number') {
        return true;
      }
      if (isArray(value)) {
        return false;
      }
      var result = !reIsDeepProp.test(value);
      return result || (object != null && value in toObject(object));
    }

    /**
     * Checks if `func` has a lazy counterpart.
     *
     * @private
     * @param {Function} func The function to check.
     * @returns {boolean} Returns `true` if `func` has a lazy counterpart, else `false`.
     */
    function isLaziable(func) {
      var funcName = getFuncName(func);
      if (!(funcName in LazyWrapper.prototype)) {
        return false;
      }
      var other = lodash[funcName];
      if (func === other) {
        return true;
      }
      var data = getData(other);
      return !!data && func === data[0];
    }

    /**
     * Checks if `value` is a valid array-like length.
     *
     * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
     */
    function isLength(value) {
      return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
    }

    /**
     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` if suitable for strict
     *  equality comparisons, else `false`.
     */
    function isStrictComparable(value) {
      return value === value && !isObject(value);
    }

    /**
     * Merges the function metadata of `source` into `data`.
     *
     * Merging metadata reduces the number of wrappers required to invoke a function.
     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
     * may be applied regardless of execution order. Methods like `_.ary` and `_.rearg`
     * augment function arguments, making the order in which they are executed important,
     * preventing the merging of metadata. However, we make an exception for a safe
     * common case where curried functions have `_.ary` and or `_.rearg` applied.
     *
     * @private
     * @param {Array} data The destination metadata.
     * @param {Array} source The source metadata.
     * @returns {Array} Returns `data`.
     */
    function mergeData(data, source) {
      var bitmask = data[1],
          srcBitmask = source[1],
          newBitmask = bitmask | srcBitmask,
          isCommon = newBitmask < ARY_FLAG;

      var isCombo =
        (srcBitmask == ARY_FLAG && bitmask == CURRY_FLAG) ||
        (srcBitmask == ARY_FLAG && bitmask == REARG_FLAG && data[7].length <= source[8]) ||
        (srcBitmask == (ARY_FLAG | REARG_FLAG) && bitmask == CURRY_FLAG);

      // Exit early if metadata can't be merged.
      if (!(isCommon || isCombo)) {
        return data;
      }
      // Use source `thisArg` if available.
      if (srcBitmask & BIND_FLAG) {
        data[2] = source[2];
        // Set when currying a bound function.
        newBitmask |= (bitmask & BIND_FLAG) ? 0 : CURRY_BOUND_FLAG;
      }
      // Compose partial arguments.
      var value = source[3];
      if (value) {
        var partials = data[3];
        data[3] = partials ? composeArgs(partials, value, source[4]) : arrayCopy(value);
        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : arrayCopy(source[4]);
      }
      // Compose partial right arguments.
      value = source[5];
      if (value) {
        partials = data[5];
        data[5] = partials ? composeArgsRight(partials, value, source[6]) : arrayCopy(value);
        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : arrayCopy(source[6]);
      }
      // Use source `argPos` if available.
      value = source[7];
      if (value) {
        data[7] = arrayCopy(value);
      }
      // Use source `ary` if it's smaller.
      if (srcBitmask & ARY_FLAG) {
        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
      }
      // Use source `arity` if one is not provided.
      if (data[9] == null) {
        data[9] = source[9];
      }
      // Use source `func` and merge bitmasks.
      data[0] = source[0];
      data[1] = newBitmask;

      return data;
    }

    /**
     * Used by `_.defaultsDeep` to customize its `_.merge` use.
     *
     * @private
     * @param {*} objectValue The destination object property value.
     * @param {*} sourceValue The source object property value.
     * @returns {*} Returns the value to assign to the destination object.
     */
    function mergeDefaults(objectValue, sourceValue) {
      return objectValue === undefined ? sourceValue : merge(objectValue, sourceValue, mergeDefaults);
    }

    /**
     * A specialized version of `_.pick` which picks `object` properties specified
     * by `props`.
     *
     * @private
     * @param {Object} object The source object.
     * @param {string[]} props The property names to pick.
     * @returns {Object} Returns the new object.
     */
    function pickByArray(object, props) {
      object = toObject(object);

      var index = -1,
          length = props.length,
          result = {};

      while (++index < length) {
        var key = props[index];
        if (key in object) {
          result[key] = object[key];
        }
      }
      return result;
    }

    /**
     * A specialized version of `_.pick` which picks `object` properties `predicate`
     * returns truthy for.
     *
     * @private
     * @param {Object} object The source object.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {Object} Returns the new object.
     */
    function pickByCallback(object, predicate) {
      var result = {};
      baseForIn(object, function(value, key, object) {
        if (predicate(value, key, object)) {
          result[key] = value;
        }
      });
      return result;
    }

    /**
     * Reorder `array` according to the specified indexes where the element at
     * the first index is assigned as the first element, the element at
     * the second index is assigned as the second element, and so on.
     *
     * @private
     * @param {Array} array The array to reorder.
     * @param {Array} indexes The arranged array indexes.
     * @returns {Array} Returns `array`.
     */
    function reorder(array, indexes) {
      var arrLength = array.length,
          length = nativeMin(indexes.length, arrLength),
          oldArray = arrayCopy(array);

      while (length--) {
        var index = indexes[length];
        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
      }
      return array;
    }

    /**
     * Sets metadata for `func`.
     *
     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
     * period of time, it will trip its breaker and transition to an identity function
     * to avoid garbage collection pauses in V8. See [V8 issue 2070](https://code.google.com/p/v8/issues/detail?id=2070)
     * for more details.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var setData = (function() {
      var count = 0,
          lastCalled = 0;

      return function(key, value) {
        var stamp = now(),
            remaining = HOT_SPAN - (stamp - lastCalled);

        lastCalled = stamp;
        if (remaining > 0) {
          if (++count >= HOT_COUNT) {
            return key;
          }
        } else {
          count = 0;
        }
        return baseSetData(key, value);
      };
    }());

    /**
     * A fallback implementation of `Object.keys` which creates an array of the
     * own enumerable property names of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function shimKeys(object) {
      var props = keysIn(object),
          propsLength = props.length,
          length = propsLength && object.length;

      var allowIndexes = !!length && isLength(length) &&
        (isArray(object) || isArguments(object));

      var index = -1,
          result = [];

      while (++index < propsLength) {
        var key = props[index];
        if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * Converts `value` to an array-like object if it's not one.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {Array|Object} Returns the array-like object.
     */
    function toIterable(value) {
      if (value == null) {
        return [];
      }
      if (!isArrayLike(value)) {
        return values(value);
      }
      return isObject(value) ? value : Object(value);
    }

    /**
     * Converts `value` to an object if it's not one.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {Object} Returns the object.
     */
    function toObject(value) {
      return isObject(value) ? value : Object(value);
    }

    /**
     * Converts `value` to property path array if it's not one.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {Array} Returns the property path array.
     */
    function toPath(value) {
      if (isArray(value)) {
        return value;
      }
      var result = [];
      baseToString(value).replace(rePropName, function(match, number, quote, string) {
        result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
      });
      return result;
    }

    /**
     * Creates a clone of `wrapper`.
     *
     * @private
     * @param {Object} wrapper The wrapper to clone.
     * @returns {Object} Returns the cloned wrapper.
     */
    function wrapperClone(wrapper) {
      return wrapper instanceof LazyWrapper
        ? wrapper.clone()
        : new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__, arrayCopy(wrapper.__actions__));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of elements split into groups the length of `size`.
     * If `collection` can't be split evenly, the final chunk will be the remaining
     * elements.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to process.
     * @param {number} [size=1] The length of each chunk.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the new array containing chunks.
     * @example
     *
     * _.chunk(['a', 'b', 'c', 'd'], 2);
     * // => [['a', 'b'], ['c', 'd']]
     *
     * _.chunk(['a', 'b', 'c', 'd'], 3);
     * // => [['a', 'b', 'c'], ['d']]
     */
    function chunk(array, size, guard) {
      if (guard ? isIterateeCall(array, size, guard) : size == null) {
        size = 1;
      } else {
        size = nativeMax(nativeFloor(size) || 1, 1);
      }
      var index = 0,
          length = array ? array.length : 0,
          resIndex = -1,
          result = Array(nativeCeil(length / size));

      while (index < length) {
        result[++resIndex] = baseSlice(array, index, (index += size));
      }
      return result;
    }

    /**
     * Creates an array with all falsey values removed. The values `false`, `null`,
     * `0`, `""`, `undefined`, and `NaN` are falsey.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to compact.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.compact([0, 1, false, 2, '', 3]);
     * // => [1, 2, 3]
     */
    function compact(array) {
      var index = -1,
          length = array ? array.length : 0,
          resIndex = -1,
          result = [];

      while (++index < length) {
        var value = array[index];
        if (value) {
          result[++resIndex] = value;
        }
      }
      return result;
    }

    /**
     * Creates an array of unique `array` values not included in the other
     * provided arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The arrays of values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.difference([1, 2, 3], [4, 2]);
     * // => [1, 3]
     */
    var difference = restParam(function(array, values) {
      return (isObjectLike(array) && isArrayLike(array))
        ? baseDifference(array, baseFlatten(values, false, true))
        : [];
    });

    /**
     * Creates a slice of `array` with `n` elements dropped from the beginning.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.drop([1, 2, 3]);
     * // => [2, 3]
     *
     * _.drop([1, 2, 3], 2);
     * // => [3]
     *
     * _.drop([1, 2, 3], 5);
     * // => []
     *
     * _.drop([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function drop(array, n, guard) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (guard ? isIterateeCall(array, n, guard) : n == null) {
        n = 1;
      }
      return baseSlice(array, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` with `n` elements dropped from the end.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.dropRight([1, 2, 3]);
     * // => [1, 2]
     *
     * _.dropRight([1, 2, 3], 2);
     * // => [1]
     *
     * _.dropRight([1, 2, 3], 5);
     * // => []
     *
     * _.dropRight([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function dropRight(array, n, guard) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (guard ? isIterateeCall(array, n, guard) : n == null) {
        n = 1;
      }
      n = length - (+n || 0);
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the end.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * bound to `thisArg` and invoked with three arguments: (value, index, array).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that match the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.dropRightWhile([1, 2, 3], function(n) {
     *   return n > 1;
     * });
     * // => [1]
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.dropRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user');
     * // => ['barney', 'fred']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.dropRightWhile(users, 'active', false), 'user');
     * // => ['barney']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.dropRightWhile(users, 'active'), 'user');
     * // => ['barney', 'fred', 'pebbles']
     */
    function dropRightWhile(array, predicate, thisArg) {
      return (array && array.length)
        ? baseWhile(array, getCallback(predicate, thisArg, 3), true, true)
        : [];
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the beginning.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * bound to `thisArg` and invoked with three arguments: (value, index, array).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.dropWhile([1, 2, 3], function(n) {
     *   return n < 3;
     * });
     * // => [3]
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.dropWhile(users, { 'user': 'barney', 'active': false }), 'user');
     * // => ['fred', 'pebbles']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.dropWhile(users, 'active', false), 'user');
     * // => ['pebbles']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.dropWhile(users, 'active'), 'user');
     * // => ['barney', 'fred', 'pebbles']
     */
    function dropWhile(array, predicate, thisArg) {
      return (array && array.length)
        ? baseWhile(array, getCallback(predicate, thisArg, 3), true)
        : [];
    }

    /**
     * Fills elements of `array` with `value` from `start` up to, but not
     * including, `end`.
     *
     * **Note:** This method mutates `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _.fill(array, 'a');
     * console.log(array);
     * // => ['a', 'a', 'a']
     *
     * _.fill(Array(3), 2);
     * // => [2, 2, 2]
     *
     * _.fill([4, 6, 8], '*', 1, 2);
     * // => [4, '*', 8]
     */
    function fill(array, value, start, end) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
        start = 0;
        end = length;
      }
      return baseFill(array, value, start, end);
    }

    /**
     * This method is like `_.find` except that it returns the index of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.findIndex(users, function(chr) {
     *   return chr.user == 'barney';
     * });
     * // => 0
     *
     * // using the `_.matches` callback shorthand
     * _.findIndex(users, { 'user': 'fred', 'active': false });
     * // => 1
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.findIndex(users, 'active', false);
     * // => 0
     *
     * // using the `_.property` callback shorthand
     * _.findIndex(users, 'active');
     * // => 2
     */
    var findIndex = createFindIndex();

    /**
     * This method is like `_.findIndex` except that it iterates over elements
     * of `collection` from right to left.
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.findLastIndex(users, function(chr) {
     *   return chr.user == 'pebbles';
     * });
     * // => 2
     *
     * // using the `_.matches` callback shorthand
     * _.findLastIndex(users, { 'user': 'barney', 'active': true });
     * // => 0
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.findLastIndex(users, 'active', false);
     * // => 2
     *
     * // using the `_.property` callback shorthand
     * _.findLastIndex(users, 'active');
     * // => 0
     */
    var findLastIndex = createFindIndex(true);

    /**
     * Gets the first element of `array`.
     *
     * @static
     * @memberOf _
     * @alias head
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the first element of `array`.
     * @example
     *
     * _.first([1, 2, 3]);
     * // => 1
     *
     * _.first([]);
     * // => undefined
     */
    function first(array) {
      return array ? array[0] : undefined;
    }

    /**
     * Flattens a nested array. If `isDeep` is `true` the array is recursively
     * flattened, otherwise it is only flattened a single level.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to flatten.
     * @param {boolean} [isDeep] Specify a deep flatten.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flatten([1, [2, 3, [4]]]);
     * // => [1, 2, 3, [4]]
     *
     * // using `isDeep`
     * _.flatten([1, [2, 3, [4]]], true);
     * // => [1, 2, 3, 4]
     */
    function flatten(array, isDeep, guard) {
      var length = array ? array.length : 0;
      if (guard && isIterateeCall(array, isDeep, guard)) {
        isDeep = false;
      }
      return length ? baseFlatten(array, isDeep) : [];
    }

    /**
     * Recursively flattens a nested array.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to recursively flatten.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flattenDeep([1, [2, 3, [4]]]);
     * // => [1, 2, 3, 4]
     */
    function flattenDeep(array) {
      var length = array ? array.length : 0;
      return length ? baseFlatten(array, true) : [];
    }

    /**
     * Gets the index at which the first occurrence of `value` is found in `array`
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons. If `fromIndex` is negative, it is used as the offset
     * from the end of `array`. If `array` is sorted providing `true` for `fromIndex`
     * performs a faster binary search.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to search.
     * @param {*} value The value to search for.
     * @param {boolean|number} [fromIndex=0] The index to search from or `true`
     *  to perform a binary search on a sorted array.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.indexOf([1, 2, 1, 2], 2);
     * // => 1
     *
     * // using `fromIndex`
     * _.indexOf([1, 2, 1, 2], 2, 2);
     * // => 3
     *
     * // performing a binary search
     * _.indexOf([1, 1, 2, 2], 2, true);
     * // => 2
     */
    function indexOf(array, value, fromIndex) {
      var length = array ? array.length : 0;
      if (!length) {
        return -1;
      }
      if (typeof fromIndex == 'number') {
        fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex;
      } else if (fromIndex) {
        var index = binaryIndex(array, value);
        if (index < length &&
            (value === value ? (value === array[index]) : (array[index] !== array[index]))) {
          return index;
        }
        return -1;
      }
      return baseIndexOf(array, value, fromIndex || 0);
    }

    /**
     * Gets all but the last element of `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.initial([1, 2, 3]);
     * // => [1, 2]
     */
    function initial(array) {
      return dropRight(array, 1);
    }

    /**
     * Creates an array of unique values that are included in all of the provided
     * arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of shared values.
     * @example
     * _.intersection([1, 2], [4, 2], [2, 1]);
     * // => [2]
     */
    var intersection = restParam(function(arrays) {
      var othLength = arrays.length,
          othIndex = othLength,
          caches = Array(length),
          indexOf = getIndexOf(),
          isCommon = indexOf == baseIndexOf,
          result = [];

      while (othIndex--) {
        var value = arrays[othIndex] = isArrayLike(value = arrays[othIndex]) ? value : [];
        caches[othIndex] = (isCommon && value.length >= 120) ? createCache(othIndex && value) : null;
      }
      var array = arrays[0],
          index = -1,
          length = array ? array.length : 0,
          seen = caches[0];

      outer:
      while (++index < length) {
        value = array[index];
        if ((seen ? cacheIndexOf(seen, value) : indexOf(result, value, 0)) < 0) {
          var othIndex = othLength;
          while (--othIndex) {
            var cache = caches[othIndex];
            if ((cache ? cacheIndexOf(cache, value) : indexOf(arrays[othIndex], value, 0)) < 0) {
              continue outer;
            }
          }
          if (seen) {
            seen.push(value);
          }
          result.push(value);
        }
      }
      return result;
    });

    /**
     * Gets the last element of `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the last element of `array`.
     * @example
     *
     * _.last([1, 2, 3]);
     * // => 3
     */
    function last(array) {
      var length = array ? array.length : 0;
      return length ? array[length - 1] : undefined;
    }

    /**
     * This method is like `_.indexOf` except that it iterates over elements of
     * `array` from right to left.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to search.
     * @param {*} value The value to search for.
     * @param {boolean|number} [fromIndex=array.length-1] The index to search from
     *  or `true` to perform a binary search on a sorted array.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.lastIndexOf([1, 2, 1, 2], 2);
     * // => 3
     *
     * // using `fromIndex`
     * _.lastIndexOf([1, 2, 1, 2], 2, 2);
     * // => 1
     *
     * // performing a binary search
     * _.lastIndexOf([1, 1, 2, 2], 2, true);
     * // => 3
     */
    function lastIndexOf(array, value, fromIndex) {
      var length = array ? array.length : 0;
      if (!length) {
        return -1;
      }
      var index = length;
      if (typeof fromIndex == 'number') {
        index = (fromIndex < 0 ? nativeMax(length + fromIndex, 0) : nativeMin(fromIndex || 0, length - 1)) + 1;
      } else if (fromIndex) {
        index = binaryIndex(array, value, true) - 1;
        var other = array[index];
        if (value === value ? (value === other) : (other !== other)) {
          return index;
        }
        return -1;
      }
      if (value !== value) {
        return indexOfNaN(array, index, true);
      }
      while (index--) {
        if (array[index] === value) {
          return index;
        }
      }
      return -1;
    }

    /**
     * Removes all provided values from `array` using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * **Note:** Unlike `_.without`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...*} [values] The values to remove.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3, 1, 2, 3];
     *
     * _.pull(array, 2, 3);
     * console.log(array);
     * // => [1, 1]
     */
    function pull() {
      var args = arguments,
          array = args[0];

      if (!(array && array.length)) {
        return array;
      }
      var index = 0,
          indexOf = getIndexOf(),
          length = args.length;

      while (++index < length) {
        var fromIndex = 0,
            value = args[index];

        while ((fromIndex = indexOf(array, value, fromIndex)) > -1) {
          splice.call(array, fromIndex, 1);
        }
      }
      return array;
    }

    /**
     * Removes elements from `array` corresponding to the given indexes and returns
     * an array of the removed elements. Indexes may be specified as an array of
     * indexes or as individual arguments.
     *
     * **Note:** Unlike `_.at`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...(number|number[])} [indexes] The indexes of elements to remove,
     *  specified as individual indexes or arrays of indexes.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = [5, 10, 15, 20];
     * var evens = _.pullAt(array, 1, 3);
     *
     * console.log(array);
     * // => [5, 15]
     *
     * console.log(evens);
     * // => [10, 20]
     */
    var pullAt = restParam(function(array, indexes) {
      indexes = baseFlatten(indexes);

      var result = baseAt(array, indexes);
      basePullAt(array, indexes.sort(baseCompareAscending));
      return result;
    });

    /**
     * Removes all elements from `array` that `predicate` returns truthy for
     * and returns an array of the removed elements. The predicate is bound to
     * `thisArg` and invoked with three arguments: (value, index, array).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * **Note:** Unlike `_.filter`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = [1, 2, 3, 4];
     * var evens = _.remove(array, function(n) {
     *   return n % 2 == 0;
     * });
     *
     * console.log(array);
     * // => [1, 3]
     *
     * console.log(evens);
     * // => [2, 4]
     */
    function remove(array, predicate, thisArg) {
      var result = [];
      if (!(array && array.length)) {
        return result;
      }
      var index = -1,
          indexes = [],
          length = array.length;

      predicate = getCallback(predicate, thisArg, 3);
      while (++index < length) {
        var value = array[index];
        if (predicate(value, index, array)) {
          result.push(value);
          indexes.push(index);
        }
      }
      basePullAt(array, indexes);
      return result;
    }

    /**
     * Gets all but the first element of `array`.
     *
     * @static
     * @memberOf _
     * @alias tail
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.rest([1, 2, 3]);
     * // => [2, 3]
     */
    function rest(array) {
      return drop(array, 1);
    }

    /**
     * Creates a slice of `array` from `start` up to, but not including, `end`.
     *
     * **Note:** This method is used instead of `Array#slice` to support node
     * lists in IE < 9 and to ensure dense arrays are returned.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function slice(array, start, end) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
        start = 0;
        end = length;
      }
      return baseSlice(array, start, end);
    }

    /**
     * Uses a binary search to determine the lowest index at which `value` should
     * be inserted into `array` in order to maintain its sort order. If an iteratee
     * function is provided it is invoked for `value` and each element of `array`
     * to compute their sort ranking. The iteratee is bound to `thisArg` and
     * invoked with one argument; (value).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedIndex([30, 50], 40);
     * // => 1
     *
     * _.sortedIndex([4, 4, 5, 5], 5);
     * // => 2
     *
     * var dict = { 'data': { 'thirty': 30, 'forty': 40, 'fifty': 50 } };
     *
     * // using an iteratee function
     * _.sortedIndex(['thirty', 'fifty'], 'forty', function(word) {
     *   return this.data[word];
     * }, dict);
     * // => 1
     *
     * // using the `_.property` callback shorthand
     * _.sortedIndex([{ 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
     * // => 1
     */
    var sortedIndex = createSortedIndex();

    /**
     * This method is like `_.sortedIndex` except that it returns the highest
     * index at which `value` should be inserted into `array` in order to
     * maintain its sort order.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedLastIndex([4, 4, 5, 5], 5);
     * // => 4
     */
    var sortedLastIndex = createSortedIndex(true);

    /**
     * Creates a slice of `array` with `n` elements taken from the beginning.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.take([1, 2, 3]);
     * // => [1]
     *
     * _.take([1, 2, 3], 2);
     * // => [1, 2]
     *
     * _.take([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.take([1, 2, 3], 0);
     * // => []
     */
    function take(array, n, guard) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (guard ? isIterateeCall(array, n, guard) : n == null) {
        n = 1;
      }
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` with `n` elements taken from the end.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.takeRight([1, 2, 3]);
     * // => [3]
     *
     * _.takeRight([1, 2, 3], 2);
     * // => [2, 3]
     *
     * _.takeRight([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.takeRight([1, 2, 3], 0);
     * // => []
     */
    function takeRight(array, n, guard) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (guard ? isIterateeCall(array, n, guard) : n == null) {
        n = 1;
      }
      n = length - (+n || 0);
      return baseSlice(array, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` with elements taken from the end. Elements are
     * taken until `predicate` returns falsey. The predicate is bound to `thisArg`
     * and invoked with three arguments: (value, index, array).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.takeRightWhile([1, 2, 3], function(n) {
     *   return n > 1;
     * });
     * // => [2, 3]
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.takeRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user');
     * // => ['pebbles']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.takeRightWhile(users, 'active', false), 'user');
     * // => ['fred', 'pebbles']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.takeRightWhile(users, 'active'), 'user');
     * // => []
     */
    function takeRightWhile(array, predicate, thisArg) {
      return (array && array.length)
        ? baseWhile(array, getCallback(predicate, thisArg, 3), false, true)
        : [];
    }

    /**
     * Creates a slice of `array` with elements taken from the beginning. Elements
     * are taken until `predicate` returns falsey. The predicate is bound to
     * `thisArg` and invoked with three arguments: (value, index, array).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.takeWhile([1, 2, 3], function(n) {
     *   return n < 3;
     * });
     * // => [1, 2]
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false},
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.takeWhile(users, { 'user': 'barney', 'active': false }), 'user');
     * // => ['barney']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.takeWhile(users, 'active', false), 'user');
     * // => ['barney', 'fred']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.takeWhile(users, 'active'), 'user');
     * // => []
     */
    function takeWhile(array, predicate, thisArg) {
      return (array && array.length)
        ? baseWhile(array, getCallback(predicate, thisArg, 3))
        : [];
    }

    /**
     * Creates an array of unique values, in order, from all of the provided arrays
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * _.union([1, 2], [4, 2], [2, 1]);
     * // => [1, 2, 4]
     */
    var union = restParam(function(arrays) {
      return baseUniq(baseFlatten(arrays, false, true));
    });

    /**
     * Creates a duplicate-free version of an array, using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons, in which only the first occurence of each element
     * is kept. Providing `true` for `isSorted` performs a faster search algorithm
     * for sorted arrays. If an iteratee function is provided it is invoked for
     * each element in the array to generate the criterion by which uniqueness
     * is computed. The `iteratee` is bound to `thisArg` and invoked with three
     * arguments: (value, index, array).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @alias unique
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {boolean} [isSorted] Specify the array is sorted.
     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the new duplicate-value-free array.
     * @example
     *
     * _.uniq([2, 1, 2]);
     * // => [2, 1]
     *
     * // using `isSorted`
     * _.uniq([1, 1, 2], true);
     * // => [1, 2]
     *
     * // using an iteratee function
     * _.uniq([1, 2.5, 1.5, 2], function(n) {
     *   return this.floor(n);
     * }, Math);
     * // => [1, 2.5]
     *
     * // using the `_.property` callback shorthand
     * _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }, { 'x': 2 }]
     */
    function uniq(array, isSorted, iteratee, thisArg) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      if (isSorted != null && typeof isSorted != 'boolean') {
        thisArg = iteratee;
        iteratee = isIterateeCall(array, isSorted, thisArg) ? undefined : isSorted;
        isSorted = false;
      }
      var callback = getCallback();
      if (!(iteratee == null && callback === baseCallback)) {
        iteratee = callback(iteratee, thisArg, 3);
      }
      return (isSorted && getIndexOf() == baseIndexOf)
        ? sortedUniq(array, iteratee)
        : baseUniq(array, iteratee);
    }

    /**
     * This method is like `_.zip` except that it accepts an array of grouped
     * elements and creates an array regrouping the elements to their pre-zip
     * configuration.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip(['fred', 'barney'], [30, 40], [true, false]);
     * // => [['fred', 30, true], ['barney', 40, false]]
     *
     * _.unzip(zipped);
     * // => [['fred', 'barney'], [30, 40], [true, false]]
     */
    function unzip(array) {
      if (!(array && array.length)) {
        return [];
      }
      var index = -1,
          length = 0;

      array = arrayFilter(array, function(group) {
        if (isArrayLike(group)) {
          length = nativeMax(group.length, length);
          return true;
        }
      });
      var result = Array(length);
      while (++index < length) {
        result[index] = arrayMap(array, baseProperty(index));
      }
      return result;
    }

    /**
     * This method is like `_.unzip` except that it accepts an iteratee to specify
     * how regrouped values should be combined. The `iteratee` is bound to `thisArg`
     * and invoked with four arguments: (accumulator, value, index, group).
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @param {Function} [iteratee] The function to combine regrouped values.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
     * // => [[1, 10, 100], [2, 20, 200]]
     *
     * _.unzipWith(zipped, _.add);
     * // => [3, 30, 300]
     */
    function unzipWith(array, iteratee, thisArg) {
      var length = array ? array.length : 0;
      if (!length) {
        return [];
      }
      var result = unzip(array);
      if (iteratee == null) {
        return result;
      }
      iteratee = bindCallback(iteratee, thisArg, 4);
      return arrayMap(result, function(group) {
        return arrayReduce(group, iteratee, undefined, true);
      });
    }

    /**
     * Creates an array excluding all provided values using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {Array} array The array to filter.
     * @param {...*} [values] The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.without([1, 2, 1, 3], 1, 2);
     * // => [3]
     */
    var without = restParam(function(array, values) {
      return isArrayLike(array)
        ? baseDifference(array, values)
        : [];
    });

    /**
     * Creates an array of unique values that is the [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
     * of the provided arrays.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of values.
     * @example
     *
     * _.xor([1, 2], [4, 2]);
     * // => [1, 4]
     */
    function xor() {
      var index = -1,
          length = arguments.length;

      while (++index < length) {
        var array = arguments[index];
        if (isArrayLike(array)) {
          var result = result
            ? arrayPush(baseDifference(result, array), baseDifference(array, result))
            : array;
        }
      }
      return result ? baseUniq(result) : [];
    }

    /**
     * Creates an array of grouped elements, the first of which contains the first
     * elements of the given arrays, the second of which contains the second elements
     * of the given arrays, and so on.
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zip(['fred', 'barney'], [30, 40], [true, false]);
     * // => [['fred', 30, true], ['barney', 40, false]]
     */
    var zip = restParam(unzip);

    /**
     * The inverse of `_.pairs`; this method returns an object composed from arrays
     * of property names and values. Provide either a single two dimensional array,
     * e.g. `[[key1, value1], [key2, value2]]` or two arrays, one of property names
     * and one of corresponding values.
     *
     * @static
     * @memberOf _
     * @alias object
     * @category Array
     * @param {Array} props The property names.
     * @param {Array} [values=[]] The property values.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.zipObject([['fred', 30], ['barney', 40]]);
     * // => { 'fred': 30, 'barney': 40 }
     *
     * _.zipObject(['fred', 'barney'], [30, 40]);
     * // => { 'fred': 30, 'barney': 40 }
     */
    function zipObject(props, values) {
      var index = -1,
          length = props ? props.length : 0,
          result = {};

      if (length && !values && !isArray(props[0])) {
        values = [];
      }
      while (++index < length) {
        var key = props[index];
        if (values) {
          result[key] = values[index];
        } else if (key) {
          result[key[0]] = key[1];
        }
      }
      return result;
    }

    /**
     * This method is like `_.zip` except that it accepts an iteratee to specify
     * how grouped values should be combined. The `iteratee` is bound to `thisArg`
     * and invoked with four arguments: (accumulator, value, index, group).
     *
     * @static
     * @memberOf _
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @param {Function} [iteratee] The function to combine grouped values.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zipWith([1, 2], [10, 20], [100, 200], _.add);
     * // => [111, 222]
     */
    var zipWith = restParam(function(arrays) {
      var length = arrays.length,
          iteratee = length > 2 ? arrays[length - 2] : undefined,
          thisArg = length > 1 ? arrays[length - 1] : undefined;

      if (length > 2 && typeof iteratee == 'function') {
        length -= 2;
      } else {
        iteratee = (length > 1 && typeof thisArg == 'function') ? (--length, thisArg) : undefined;
        thisArg = undefined;
      }
      arrays.length = length;
      return unzipWith(arrays, iteratee, thisArg);
    });

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` object that wraps `value` with explicit method
     * chaining enabled.
     *
     * @static
     * @memberOf _
     * @category Chain
     * @param {*} value The value to wrap.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36 },
     *   { 'user': 'fred',    'age': 40 },
     *   { 'user': 'pebbles', 'age': 1 }
     * ];
     *
     * var youngest = _.chain(users)
     *   .sortBy('age')
     *   .map(function(chr) {
     *     return chr.user + ' is ' + chr.age;
     *   })
     *   .first()
     *   .value();
     * // => 'pebbles is 1'
     */
    function chain(value) {
      var result = lodash(value);
      result.__chain__ = true;
      return result;
    }

    /**
     * This method invokes `interceptor` and returns `value`. The interceptor is
     * bound to `thisArg` and invoked with one argument; (value). The purpose of
     * this method is to "tap into" a method chain in order to perform operations
     * on intermediate results within the chain.
     *
     * @static
     * @memberOf _
     * @category Chain
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @param {*} [thisArg] The `this` binding of `interceptor`.
     * @returns {*} Returns `value`.
     * @example
     *
     * _([1, 2, 3])
     *  .tap(function(array) {
     *    array.pop();
     *  })
     *  .reverse()
     *  .value();
     * // => [2, 1]
     */
    function tap(value, interceptor, thisArg) {
      interceptor.call(thisArg, value);
      return value;
    }

    /**
     * This method is like `_.tap` except that it returns the result of `interceptor`.
     *
     * @static
     * @memberOf _
     * @category Chain
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @param {*} [thisArg] The `this` binding of `interceptor`.
     * @returns {*} Returns the result of `interceptor`.
     * @example
     *
     * _('  abc  ')
     *  .chain()
     *  .trim()
     *  .thru(function(value) {
     *    return [value];
     *  })
     *  .value();
     * // => ['abc']
     */
    function thru(value, interceptor, thisArg) {
      return interceptor.call(thisArg, value);
    }

    /**
     * Enables explicit method chaining on the wrapper object.
     *
     * @name chain
     * @memberOf _
     * @category Chain
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * // without explicit chaining
     * _(users).first();
     * // => { 'user': 'barney', 'age': 36 }
     *
     * // with explicit chaining
     * _(users).chain()
     *   .first()
     *   .pick('user')
     *   .value();
     * // => { 'user': 'barney' }
     */
    function wrapperChain() {
      return chain(this);
    }

    /**
     * Executes the chained sequence and returns the wrapped result.
     *
     * @name commit
     * @memberOf _
     * @category Chain
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2];
     * var wrapped = _(array).push(3);
     *
     * console.log(array);
     * // => [1, 2]
     *
     * wrapped = wrapped.commit();
     * console.log(array);
     * // => [1, 2, 3]
     *
     * wrapped.last();
     * // => 3
     *
     * console.log(array);
     * // => [1, 2, 3]
     */
    function wrapperCommit() {
      return new LodashWrapper(this.value(), this.__chain__);
    }

    /**
     * Creates a new array joining a wrapped array with any additional arrays
     * and/or values.
     *
     * @name concat
     * @memberOf _
     * @category Chain
     * @param {...*} [values] The values to concatenate.
     * @returns {Array} Returns the new concatenated array.
     * @example
     *
     * var array = [1];
     * var wrapped = _(array).concat(2, [3], [[4]]);
     *
     * console.log(wrapped.value());
     * // => [1, 2, 3, [4]]
     *
     * console.log(array);
     * // => [1]
     */
    var wrapperConcat = restParam(function(values) {
      values = baseFlatten(values);
      return this.thru(function(array) {
        return arrayConcat(isArray(array) ? array : [toObject(array)], values);
      });
    });

    /**
     * Creates a clone of the chained sequence planting `value` as the wrapped value.
     *
     * @name plant
     * @memberOf _
     * @category Chain
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2];
     * var wrapped = _(array).map(function(value) {
     *   return Math.pow(value, 2);
     * });
     *
     * var other = [3, 4];
     * var otherWrapped = wrapped.plant(other);
     *
     * otherWrapped.value();
     * // => [9, 16]
     *
     * wrapped.value();
     * // => [1, 4]
     */
    function wrapperPlant(value) {
      var result,
          parent = this;

      while (parent instanceof baseLodash) {
        var clone = wrapperClone(parent);
        if (result) {
          previous.__wrapped__ = clone;
        } else {
          result = clone;
        }
        var previous = clone;
        parent = parent.__wrapped__;
      }
      previous.__wrapped__ = value;
      return result;
    }

    /**
     * Reverses the wrapped array so the first element becomes the last, the
     * second element becomes the second to last, and so on.
     *
     * **Note:** This method mutates the wrapped array.
     *
     * @name reverse
     * @memberOf _
     * @category Chain
     * @returns {Object} Returns the new reversed `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _(array).reverse().value()
     * // => [3, 2, 1]
     *
     * console.log(array);
     * // => [3, 2, 1]
     */
    function wrapperReverse() {
      var value = this.__wrapped__;

      var interceptor = function(value) {
        return (wrapped && wrapped.__dir__ < 0) ? value : value.reverse();
      };
      if (value instanceof LazyWrapper) {
        var wrapped = value;
        if (this.__actions__.length) {
          wrapped = new LazyWrapper(this);
        }
        wrapped = wrapped.reverse();
        wrapped.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
        return new LodashWrapper(wrapped, this.__chain__);
      }
      return this.thru(interceptor);
    }

    /**
     * Produces the result of coercing the unwrapped value to a string.
     *
     * @name toString
     * @memberOf _
     * @category Chain
     * @returns {string} Returns the coerced string value.
     * @example
     *
     * _([1, 2, 3]).toString();
     * // => '1,2,3'
     */
    function wrapperToString() {
      return (this.value() + '');
    }

    /**
     * Executes the chained sequence to extract the unwrapped value.
     *
     * @name value
     * @memberOf _
     * @alias run, toJSON, valueOf
     * @category Chain
     * @returns {*} Returns the resolved unwrapped value.
     * @example
     *
     * _([1, 2, 3]).value();
     * // => [1, 2, 3]
     */
    function wrapperValue() {
      return baseWrapperValue(this.__wrapped__, this.__actions__);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of elements corresponding to the given keys, or indexes,
     * of `collection`. Keys may be specified as individual arguments or as arrays
     * of keys.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {...(number|number[]|string|string[])} [props] The property names
     *  or indexes of elements to pick, specified individually or in arrays.
     * @returns {Array} Returns the new array of picked elements.
     * @example
     *
     * _.at(['a', 'b', 'c'], [0, 2]);
     * // => ['a', 'c']
     *
     * _.at(['barney', 'fred', 'pebbles'], 0, 2);
     * // => ['barney', 'pebbles']
     */
    var at = restParam(function(collection, props) {
      return baseAt(collection, baseFlatten(props));
    });

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` through `iteratee`. The corresponding value
     * of each key is the number of times the key was returned by `iteratee`.
     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.countBy([4.3, 6.1, 6.4], function(n) {
     *   return Math.floor(n);
     * });
     * // => { '4': 1, '6': 2 }
     *
     * _.countBy([4.3, 6.1, 6.4], function(n) {
     *   return this.floor(n);
     * }, Math);
     * // => { '4': 1, '6': 2 }
     *
     * _.countBy(['one', 'two', 'three'], 'length');
     * // => { '3': 2, '5': 1 }
     */
    var countBy = createAggregator(function(result, value, key) {
      hasOwnProperty.call(result, key) ? ++result[key] : (result[key] = 1);
    });

    /**
     * Checks if `predicate` returns truthy for **all** elements of `collection`.
     * The predicate is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @alias all
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`.
     * @example
     *
     * _.every([true, 1, null, 'yes'], Boolean);
     * // => false
     *
     * var users = [
     *   { 'user': 'barney', 'active': false },
     *   { 'user': 'fred',   'active': false }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.every(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.every(users, 'active', false);
     * // => true
     *
     * // using the `_.property` callback shorthand
     * _.every(users, 'active');
     * // => false
     */
    function every(collection, predicate, thisArg) {
      var func = isArray(collection) ? arrayEvery : baseEvery;
      if (thisArg && isIterateeCall(collection, predicate, thisArg)) {
        predicate = undefined;
      }
      if (typeof predicate != 'function' || thisArg !== undefined) {
        predicate = getCallback(predicate, thisArg, 3);
      }
      return func(collection, predicate);
    }

    /**
     * Iterates over elements of `collection`, returning an array of all elements
     * `predicate` returns truthy for. The predicate is bound to `thisArg` and
     * invoked with three arguments: (value, index|key, collection).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @alias select
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the new filtered array.
     * @example
     *
     * _.filter([4, 5, 6], function(n) {
     *   return n % 2 == 0;
     * });
     * // => [4, 6]
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.filter(users, { 'age': 36, 'active': true }), 'user');
     * // => ['barney']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.filter(users, 'active', false), 'user');
     * // => ['fred']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.filter(users, 'active'), 'user');
     * // => ['barney']
     */
    function filter(collection, predicate, thisArg) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      predicate = getCallback(predicate, thisArg, 3);
      return func(collection, predicate);
    }

    /**
     * Iterates over elements of `collection`, returning the first element
     * `predicate` returns truthy for. The predicate is bound to `thisArg` and
     * invoked with three arguments: (value, index|key, collection).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @alias detect
     * @category Collection
     * @param {Array|Object|string} collection The collection to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': true },
     *   { 'user': 'fred',    'age': 40, 'active': false },
     *   { 'user': 'pebbles', 'age': 1,  'active': true }
     * ];
     *
     * _.result(_.find(users, function(chr) {
     *   return chr.age < 40;
     * }), 'user');
     * // => 'barney'
     *
     * // using the `_.matches` callback shorthand
     * _.result(_.find(users, { 'age': 1, 'active': true }), 'user');
     * // => 'pebbles'
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.result(_.find(users, 'active', false), 'user');
     * // => 'fred'
     *
     * // using the `_.property` callback shorthand
     * _.result(_.find(users, 'active'), 'user');
     * // => 'barney'
     */
    var find = createFind(baseEach);

    /**
     * This method is like `_.find` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * _.findLast([1, 2, 3, 4], function(n) {
     *   return n % 2 == 1;
     * });
     * // => 3
     */
    var findLast = createFind(baseEachRight, true);

    /**
     * Performs a deep comparison between each element in `collection` and the
     * source object, returning the first element that has equivalent property
     * values.
     *
     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
     * numbers, `Object` objects, regexes, and strings. Objects are compared by
     * their own, not inherited, enumerable properties. For comparing a single
     * own or inherited property value see `_.matchesProperty`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to search.
     * @param {Object} source The object of property values to match.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * _.result(_.findWhere(users, { 'age': 36, 'active': true }), 'user');
     * // => 'barney'
     *
     * _.result(_.findWhere(users, { 'age': 40, 'active': false }), 'user');
     * // => 'fred'
     */
    function findWhere(collection, source) {
      return find(collection, baseMatches(source));
    }

    /**
     * Iterates over elements of `collection` invoking `iteratee` for each element.
     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection). Iteratee functions may exit iteration early
     * by explicitly returning `false`.
     *
     * **Note:** As with other "Collections" methods, objects with a "length" property
     * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
     * may be used for object iteration.
     *
     * @static
     * @memberOf _
     * @alias each
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array|Object|string} Returns `collection`.
     * @example
     *
     * _([1, 2]).forEach(function(n) {
     *   console.log(n);
     * }).value();
     * // => logs each value from left to right and returns the array
     *
     * _.forEach({ 'a': 1, 'b': 2 }, function(n, key) {
     *   console.log(n, key);
     * });
     * // => logs each value-key pair and returns the object (iteration order is not guaranteed)
     */
    var forEach = createForEach(arrayEach, baseEach);

    /**
     * This method is like `_.forEach` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @alias eachRight
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array|Object|string} Returns `collection`.
     * @example
     *
     * _([1, 2]).forEachRight(function(n) {
     *   console.log(n);
     * }).value();
     * // => logs each value from right to left and returns the array
     */
    var forEachRight = createForEach(arrayEachRight, baseEachRight);

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` through `iteratee`. The corresponding value
     * of each key is an array of the elements responsible for generating the key.
     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.groupBy([4.2, 6.1, 6.4], function(n) {
     *   return Math.floor(n);
     * });
     * // => { '4': [4.2], '6': [6.1, 6.4] }
     *
     * _.groupBy([4.2, 6.1, 6.4], function(n) {
     *   return this.floor(n);
     * }, Math);
     * // => { '4': [4.2], '6': [6.1, 6.4] }
     *
     * // using the `_.property` callback shorthand
     * _.groupBy(['one', 'two', 'three'], 'length');
     * // => { '3': ['one', 'two'], '5': ['three'] }
     */
    var groupBy = createAggregator(function(result, value, key) {
      if (hasOwnProperty.call(result, key)) {
        result[key].push(value);
      } else {
        result[key] = [value];
      }
    });

    /**
     * Checks if `value` is in `collection` using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
     * for equality comparisons. If `fromIndex` is negative, it is used as the offset
     * from the end of `collection`.
     *
     * @static
     * @memberOf _
     * @alias contains, include
     * @category Collection
     * @param {Array|Object|string} collection The collection to search.
     * @param {*} target The value to search for.
     * @param {number} [fromIndex=0] The index to search from.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
     * @returns {boolean} Returns `true` if a matching element is found, else `false`.
     * @example
     *
     * _.includes([1, 2, 3], 1);
     * // => true
     *
     * _.includes([1, 2, 3], 1, 2);
     * // => false
     *
     * _.includes({ 'user': 'fred', 'age': 40 }, 'fred');
     * // => true
     *
     * _.includes('pebbles', 'eb');
     * // => true
     */
    function includes(collection, target, fromIndex, guard) {
      var length = collection ? getLength(collection) : 0;
      if (!isLength(length)) {
        collection = values(collection);
        length = collection.length;
      }
      if (typeof fromIndex != 'number' || (guard && isIterateeCall(target, fromIndex, guard))) {
        fromIndex = 0;
      } else {
        fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
      }
      return (typeof collection == 'string' || !isArray(collection) && isString(collection))
        ? (fromIndex <= length && collection.indexOf(target, fromIndex) > -1)
        : (!!length && getIndexOf(collection, target, fromIndex) > -1);
    }

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` through `iteratee`. The corresponding value
     * of each key is the last element responsible for generating the key. The
     * iteratee function is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * var keyData = [
     *   { 'dir': 'left', 'code': 97 },
     *   { 'dir': 'right', 'code': 100 }
     * ];
     *
     * _.indexBy(keyData, 'dir');
     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
     *
     * _.indexBy(keyData, function(object) {
     *   return String.fromCharCode(object.code);
     * });
     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
     *
     * _.indexBy(keyData, function(object) {
     *   return this.fromCharCode(object.code);
     * }, String);
     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
     */
    var indexBy = createAggregator(function(result, value, key) {
      result[key] = value;
    });

    /**
     * Invokes the method at `path` of each element in `collection`, returning
     * an array of the results of each invoked method. Any additional arguments
     * are provided to each invoked method. If `methodName` is a function it is
     * invoked for, and `this` bound to, each element in `collection`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Array|Function|string} path The path of the method to invoke or
     *  the function invoked per iteration.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
     * // => [[1, 5, 7], [1, 2, 3]]
     *
     * _.invoke([123, 456], String.prototype.split, '');
     * // => [['1', '2', '3'], ['4', '5', '6']]
     */
    var invoke = restParam(function(collection, path, args) {
      var index = -1,
          isFunc = typeof path == 'function',
          isProp = isKey(path),
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value) {
        var func = isFunc ? path : ((isProp && value != null) ? value[path] : undefined);
        result[++index] = func ? func.apply(value, args) : invokePath(value, path, args);
      });
      return result;
    });

    /**
     * Creates an array of values by running each element in `collection` through
     * `iteratee`. The `iteratee` is bound to `thisArg` and invoked with three
     * arguments: (value, index|key, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
     *
     * The guarded methods are:
     * `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`,
     * `drop`, `dropRight`, `every`, `fill`, `flatten`, `invert`, `max`, `min`,
     * `parseInt`, `slice`, `sortBy`, `take`, `takeRight`, `template`, `trim`,
     * `trimLeft`, `trimRight`, `trunc`, `random`, `range`, `sample`, `some`,
     * `sum`, `uniq`, and `words`
     *
     * @static
     * @memberOf _
     * @alias collect
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the new mapped array.
     * @example
     *
     * function timesThree(n) {
     *   return n * 3;
     * }
     *
     * _.map([1, 2], timesThree);
     * // => [3, 6]
     *
     * _.map({ 'a': 1, 'b': 2 }, timesThree);
     * // => [3, 6] (iteration order is not guaranteed)
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * // using the `_.property` callback shorthand
     * _.map(users, 'user');
     * // => ['barney', 'fred']
     */
    function map(collection, iteratee, thisArg) {
      var func = isArray(collection) ? arrayMap : baseMap;
      iteratee = getCallback(iteratee, thisArg, 3);
      return func(collection, iteratee);
    }

    /**
     * Creates an array of elements split into two groups, the first of which
     * contains elements `predicate` returns truthy for, while the second of which
     * contains elements `predicate` returns falsey for. The predicate is bound
     * to `thisArg` and invoked with three arguments: (value, index|key, collection).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the array of grouped elements.
     * @example
     *
     * _.partition([1, 2, 3], function(n) {
     *   return n % 2;
     * });
     * // => [[1, 3], [2]]
     *
     * _.partition([1.2, 2.3, 3.4], function(n) {
     *   return this.floor(n) % 2;
     * }, Math);
     * // => [[1.2, 3.4], [2.3]]
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': false },
     *   { 'user': 'fred',    'age': 40, 'active': true },
     *   { 'user': 'pebbles', 'age': 1,  'active': false }
     * ];
     *
     * var mapper = function(array) {
     *   return _.pluck(array, 'user');
     * };
     *
     * // using the `_.matches` callback shorthand
     * _.map(_.partition(users, { 'age': 1, 'active': false }), mapper);
     * // => [['pebbles'], ['barney', 'fred']]
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.map(_.partition(users, 'active', false), mapper);
     * // => [['barney', 'pebbles'], ['fred']]
     *
     * // using the `_.property` callback shorthand
     * _.map(_.partition(users, 'active'), mapper);
     * // => [['fred'], ['barney', 'pebbles']]
     */
    var partition = createAggregator(function(result, value, key) {
      result[key ? 0 : 1].push(value);
    }, function() { return [[], []]; });

    /**
     * Gets the property value of `path` from all elements in `collection`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Array|string} path The path of the property to pluck.
     * @returns {Array} Returns the property values.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * _.pluck(users, 'user');
     * // => ['barney', 'fred']
     *
     * var userIndex = _.indexBy(users, 'user');
     * _.pluck(userIndex, 'age');
     * // => [36, 40] (iteration order is not guaranteed)
     */
    function pluck(collection, path) {
      return map(collection, property(path));
    }

    /**
     * Reduces `collection` to a value which is the accumulated result of running
     * each element in `collection` through `iteratee`, where each successive
     * invocation is supplied the return value of the previous. If `accumulator`
     * is not provided the first element of `collection` is used as the initial
     * value. The `iteratee` is bound to `thisArg` and invoked with four arguments:
     * (accumulator, value, index|key, collection).
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.reduce`, `_.reduceRight`, and `_.transform`.
     *
     * The guarded methods are:
     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `sortByAll`,
     * and `sortByOrder`
     *
     * @static
     * @memberOf _
     * @alias foldl, inject
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {*} Returns the accumulated value.
     * @example
     *
     * _.reduce([1, 2], function(total, n) {
     *   return total + n;
     * });
     * // => 3
     *
     * _.reduce({ 'a': 1, 'b': 2 }, function(result, n, key) {
     *   result[key] = n * 3;
     *   return result;
     * }, {});
     * // => { 'a': 3, 'b': 6 } (iteration order is not guaranteed)
     */
    var reduce = createReduce(arrayReduce, baseEach);

    /**
     * This method is like `_.reduce` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @alias foldr
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {*} Returns the accumulated value.
     * @example
     *
     * var array = [[0, 1], [2, 3], [4, 5]];
     *
     * _.reduceRight(array, function(flattened, other) {
     *   return flattened.concat(other);
     * }, []);
     * // => [4, 5, 2, 3, 0, 1]
     */
    var reduceRight = createReduce(arrayReduceRight, baseEachRight);

    /**
     * The opposite of `_.filter`; this method returns the elements of `collection`
     * that `predicate` does **not** return truthy for.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Array} Returns the new filtered array.
     * @example
     *
     * _.reject([1, 2, 3, 4], function(n) {
     *   return n % 2 == 0;
     * });
     * // => [1, 3]
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false },
     *   { 'user': 'fred',   'age': 40, 'active': true }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.pluck(_.reject(users, { 'age': 40, 'active': true }), 'user');
     * // => ['barney']
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.pluck(_.reject(users, 'active', false), 'user');
     * // => ['fred']
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.reject(users, 'active'), 'user');
     * // => ['barney']
     */
    function reject(collection, predicate, thisArg) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      predicate = getCallback(predicate, thisArg, 3);
      return func(collection, function(value, index, collection) {
        return !predicate(value, index, collection);
      });
    }

    /**
     * Gets a random element or `n` random elements from a collection.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to sample.
     * @param {number} [n] The number of elements to sample.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {*} Returns the random sample(s).
     * @example
     *
     * _.sample([1, 2, 3, 4]);
     * // => 2
     *
     * _.sample([1, 2, 3, 4], 2);
     * // => [3, 1]
     */
    function sample(collection, n, guard) {
      if (guard ? isIterateeCall(collection, n, guard) : n == null) {
        collection = toIterable(collection);
        var length = collection.length;
        return length > 0 ? collection[baseRandom(0, length - 1)] : undefined;
      }
      var index = -1,
          result = toArray(collection),
          length = result.length,
          lastIndex = length - 1;

      n = nativeMin(n < 0 ? 0 : (+n || 0), length);
      while (++index < n) {
        var rand = baseRandom(index, lastIndex),
            value = result[rand];

        result[rand] = result[index];
        result[index] = value;
      }
      result.length = n;
      return result;
    }

    /**
     * Creates an array of shuffled values, using a version of the
     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to shuffle.
     * @returns {Array} Returns the new shuffled array.
     * @example
     *
     * _.shuffle([1, 2, 3, 4]);
     * // => [4, 1, 3, 2]
     */
    function shuffle(collection) {
      return sample(collection, POSITIVE_INFINITY);
    }

    /**
     * Gets the size of `collection` by returning its length for array-like
     * values or the number of own enumerable properties for objects.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to inspect.
     * @returns {number} Returns the size of `collection`.
     * @example
     *
     * _.size([1, 2, 3]);
     * // => 3
     *
     * _.size({ 'a': 1, 'b': 2 });
     * // => 2
     *
     * _.size('pebbles');
     * // => 7
     */
    function size(collection) {
      var length = collection ? getLength(collection) : 0;
      return isLength(length) ? length : keys(collection).length;
    }

    /**
     * Checks if `predicate` returns truthy for **any** element of `collection`.
     * The function returns as soon as it finds a passing value and does not iterate
     * over the entire collection. The predicate is bound to `thisArg` and invoked
     * with three arguments: (value, index|key, collection).
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @alias any
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     * @example
     *
     * _.some([null, 0, 'yes', false], Boolean);
     * // => true
     *
     * var users = [
     *   { 'user': 'barney', 'active': true },
     *   { 'user': 'fred',   'active': false }
     * ];
     *
     * // using the `_.matches` callback shorthand
     * _.some(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.some(users, 'active', false);
     * // => true
     *
     * // using the `_.property` callback shorthand
     * _.some(users, 'active');
     * // => true
     */
    function some(collection, predicate, thisArg) {
      var func = isArray(collection) ? arraySome : baseSome;
      if (thisArg && isIterateeCall(collection, predicate, thisArg)) {
        predicate = undefined;
      }
      if (typeof predicate != 'function' || thisArg !== undefined) {
        predicate = getCallback(predicate, thisArg, 3);
      }
      return func(collection, predicate);
    }

    /**
     * Creates an array of elements, sorted in ascending order by the results of
     * running each element in a collection through `iteratee`. This method performs
     * a stable sort, that is, it preserves the original sort order of equal elements.
     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
     * (value, index|key, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * _.sortBy([1, 2, 3], function(n) {
     *   return Math.sin(n);
     * });
     * // => [3, 1, 2]
     *
     * _.sortBy([1, 2, 3], function(n) {
     *   return this.sin(n);
     * }, Math);
     * // => [3, 1, 2]
     *
     * var users = [
     *   { 'user': 'fred' },
     *   { 'user': 'pebbles' },
     *   { 'user': 'barney' }
     * ];
     *
     * // using the `_.property` callback shorthand
     * _.pluck(_.sortBy(users, 'user'), 'user');
     * // => ['barney', 'fred', 'pebbles']
     */
    function sortBy(collection, iteratee, thisArg) {
      if (collection == null) {
        return [];
      }
      if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
        iteratee = undefined;
      }
      var index = -1;
      iteratee = getCallback(iteratee, thisArg, 3);

      var result = baseMap(collection, function(value, key, collection) {
        return { 'criteria': iteratee(value, key, collection), 'index': ++index, 'value': value };
      });
      return baseSortBy(result, compareAscending);
    }

    /**
     * This method is like `_.sortBy` except that it can sort by multiple iteratees
     * or property names.
     *
     * If a property name is provided for an iteratee the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If an object is provided for an iteratee the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {...(Function|Function[]|Object|Object[]|string|string[])} iteratees
     *  The iteratees to sort by, specified as individual values or arrays of values.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 42 },
     *   { 'user': 'barney', 'age': 34 }
     * ];
     *
     * _.map(_.sortByAll(users, ['user', 'age']), _.values);
     * // => [['barney', 34], ['barney', 36], ['fred', 42], ['fred', 48]]
     *
     * _.map(_.sortByAll(users, 'user', function(chr) {
     *   return Math.floor(chr.age / 10);
     * }), _.values);
     * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
     */
    var sortByAll = restParam(function(collection, iteratees) {
      if (collection == null) {
        return [];
      }
      var guard = iteratees[2];
      if (guard && isIterateeCall(iteratees[0], iteratees[1], guard)) {
        iteratees.length = 1;
      }
      return baseSortByOrder(collection, baseFlatten(iteratees), []);
    });

    /**
     * This method is like `_.sortByAll` except that it allows specifying the
     * sort orders of the iteratees to sort by. If `orders` is unspecified, all
     * values are sorted in ascending order. Otherwise, a value is sorted in
     * ascending order if its corresponding order is "asc", and descending if "desc".
     *
     * If a property name is provided for an iteratee the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If an object is provided for an iteratee the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
     * @param {boolean[]} [orders] The sort orders of `iteratees`.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 34 },
     *   { 'user': 'fred',   'age': 42 },
     *   { 'user': 'barney', 'age': 36 }
     * ];
     *
     * // sort by `user` in ascending order and by `age` in descending order
     * _.map(_.sortByOrder(users, ['user', 'age'], ['asc', 'desc']), _.values);
     * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
     */
    function sortByOrder(collection, iteratees, orders, guard) {
      if (collection == null) {
        return [];
      }
      if (guard && isIterateeCall(iteratees, orders, guard)) {
        orders = undefined;
      }
      if (!isArray(iteratees)) {
        iteratees = iteratees == null ? [] : [iteratees];
      }
      if (!isArray(orders)) {
        orders = orders == null ? [] : [orders];
      }
      return baseSortByOrder(collection, iteratees, orders);
    }

    /**
     * Performs a deep comparison between each element in `collection` and the
     * source object, returning an array of all elements that have equivalent
     * property values.
     *
     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
     * numbers, `Object` objects, regexes, and strings. Objects are compared by
     * their own, not inherited, enumerable properties. For comparing a single
     * own or inherited property value see `_.matchesProperty`.
     *
     * @static
     * @memberOf _
     * @category Collection
     * @param {Array|Object|string} collection The collection to search.
     * @param {Object} source The object of property values to match.
     * @returns {Array} Returns the new filtered array.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false, 'pets': ['hoppy'] },
     *   { 'user': 'fred',   'age': 40, 'active': true, 'pets': ['baby puss', 'dino'] }
     * ];
     *
     * _.pluck(_.where(users, { 'age': 36, 'active': false }), 'user');
     * // => ['barney']
     *
     * _.pluck(_.where(users, { 'pets': ['dino'] }), 'user');
     * // => ['fred']
     */
    function where(collection, source) {
      return filter(collection, baseMatches(source));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Gets the number of milliseconds that have elapsed since the Unix epoch
     * (1 January 1970 00:00:00 UTC).
     *
     * @static
     * @memberOf _
     * @category Date
     * @example
     *
     * _.defer(function(stamp) {
     *   console.log(_.now() - stamp);
     * }, _.now());
     * // => logs the number of milliseconds it took for the deferred function to be invoked
     */
    var now = nativeNow || function() {
      return new Date().getTime();
    };

    /*------------------------------------------------------------------------*/

    /**
     * The opposite of `_.before`; this method creates a function that invokes
     * `func` once it is called `n` or more times.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {number} n The number of calls before `func` is invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var saves = ['profile', 'settings'];
     *
     * var done = _.after(saves.length, function() {
     *   console.log('done saving!');
     * });
     *
     * _.forEach(saves, function(type) {
     *   asyncSave({ 'type': type, 'complete': done });
     * });
     * // => logs 'done saving!' after the two async saves have completed
     */
    function after(n, func) {
      if (typeof func != 'function') {
        if (typeof n == 'function') {
          var temp = n;
          n = func;
          func = temp;
        } else {
          throw new TypeError(FUNC_ERROR_TEXT);
        }
      }
      n = nativeIsFinite(n = +n) ? n : 0;
      return function() {
        if (--n < 1) {
          return func.apply(this, arguments);
        }
      };
    }

    /**
     * Creates a function that accepts up to `n` arguments ignoring any
     * additional arguments.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to cap arguments for.
     * @param {number} [n=func.length] The arity cap.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Function} Returns the new function.
     * @example
     *
     * _.map(['6', '8', '10'], _.ary(parseInt, 1));
     * // => [6, 8, 10]
     */
    function ary(func, n, guard) {
      if (guard && isIterateeCall(func, n, guard)) {
        n = undefined;
      }
      n = (func && n == null) ? func.length : nativeMax(+n || 0, 0);
      return createWrapper(func, ARY_FLAG, undefined, undefined, undefined, undefined, n);
    }

    /**
     * Creates a function that invokes `func`, with the `this` binding and arguments
     * of the created function, while it is called less than `n` times. Subsequent
     * calls to the created function return the result of the last `func` invocation.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {number} n The number of calls at which `func` is no longer invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * jQuery('#add').on('click', _.before(5, addContactToList));
     * // => allows adding up to 4 contacts to the list
     */
    function before(n, func) {
      var result;
      if (typeof func != 'function') {
        if (typeof n == 'function') {
          var temp = n;
          n = func;
          func = temp;
        } else {
          throw new TypeError(FUNC_ERROR_TEXT);
        }
      }
      return function() {
        if (--n > 0) {
          result = func.apply(this, arguments);
        }
        if (n <= 1) {
          func = undefined;
        }
        return result;
      };
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of `thisArg`
     * and prepends any additional `_.bind` arguments to those provided to the
     * bound function.
     *
     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for partially applied arguments.
     *
     * **Note:** Unlike native `Function#bind` this method does not set the "length"
     * property of bound functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to bind.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * var greet = function(greeting, punctuation) {
     *   return greeting + ' ' + this.user + punctuation;
     * };
     *
     * var object = { 'user': 'fred' };
     *
     * var bound = _.bind(greet, object, 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * // using placeholders
     * var bound = _.bind(greet, object, _, '!');
     * bound('hi');
     * // => 'hi fred!'
     */
    var bind = restParam(function(func, thisArg, partials) {
      var bitmask = BIND_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, bind.placeholder);
        bitmask |= PARTIAL_FLAG;
      }
      return createWrapper(func, bitmask, thisArg, partials, holders);
    });

    /**
     * Binds methods of an object to the object itself, overwriting the existing
     * method. Method names may be specified as individual arguments or as arrays
     * of method names. If no method names are provided all enumerable function
     * properties, own and inherited, of `object` are bound.
     *
     * **Note:** This method does not set the "length" property of bound functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Object} object The object to bind and assign the bound methods to.
     * @param {...(string|string[])} [methodNames] The object method names to bind,
     *  specified as individual method names or arrays of method names.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var view = {
     *   'label': 'docs',
     *   'onClick': function() {
     *     console.log('clicked ' + this.label);
     *   }
     * };
     *
     * _.bindAll(view);
     * jQuery('#docs').on('click', view.onClick);
     * // => logs 'clicked docs' when the element is clicked
     */
    var bindAll = restParam(function(object, methodNames) {
      methodNames = methodNames.length ? baseFlatten(methodNames) : functions(object);

      var index = -1,
          length = methodNames.length;

      while (++index < length) {
        var key = methodNames[index];
        object[key] = createWrapper(object[key], BIND_FLAG, object);
      }
      return object;
    });

    /**
     * Creates a function that invokes the method at `object[key]` and prepends
     * any additional `_.bindKey` arguments to those provided to the bound function.
     *
     * This method differs from `_.bind` by allowing bound functions to reference
     * methods that may be redefined or don't yet exist.
     * See [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
     * for more details.
     *
     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Object} object The object the method belongs to.
     * @param {string} key The key of the method.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * var object = {
     *   'user': 'fred',
     *   'greet': function(greeting, punctuation) {
     *     return greeting + ' ' + this.user + punctuation;
     *   }
     * };
     *
     * var bound = _.bindKey(object, 'greet', 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * object.greet = function(greeting, punctuation) {
     *   return greeting + 'ya ' + this.user + punctuation;
     * };
     *
     * bound('!');
     * // => 'hiya fred!'
     *
     * // using placeholders
     * var bound = _.bindKey(object, 'greet', _, '!');
     * bound('hi');
     * // => 'hiya fred!'
     */
    var bindKey = restParam(function(object, key, partials) {
      var bitmask = BIND_FLAG | BIND_KEY_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, bindKey.placeholder);
        bitmask |= PARTIAL_FLAG;
      }
      return createWrapper(key, bitmask, object, partials, holders);
    });

    /**
     * Creates a function that accepts one or more arguments of `func` that when
     * called either invokes `func` returning its result, if all `func` arguments
     * have been provided, or returns a function that accepts one or more of the
     * remaining `func` arguments, and so on. The arity of `func` may be specified
     * if `func.length` is not sufficient.
     *
     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for provided arguments.
     *
     * **Note:** This method does not set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curry(abc);
     *
     * curried(1)(2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // using placeholders
     * curried(1)(_, 3)(2);
     * // => [1, 2, 3]
     */
    var curry = createCurry(CURRY_FLAG);

    /**
     * This method is like `_.curry` except that arguments are applied to `func`
     * in the manner of `_.partialRight` instead of `_.partial`.
     *
     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for provided arguments.
     *
     * **Note:** This method does not set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curryRight(abc);
     *
     * curried(3)(2)(1);
     * // => [1, 2, 3]
     *
     * curried(2, 3)(1);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // using placeholders
     * curried(3)(1, _)(2);
     * // => [1, 2, 3]
     */
    var curryRight = createCurry(CURRY_RIGHT_FLAG);

    /**
     * Creates a debounced function that delays invoking `func` until after `wait`
     * milliseconds have elapsed since the last time the debounced function was
     * invoked. The debounced function comes with a `cancel` method to cancel
     * delayed invocations. Provide an options object to indicate that `func`
     * should be invoked on the leading and/or trailing edge of the `wait` timeout.
     * Subsequent calls to the debounced function return the result of the last
     * `func` invocation.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
     * on the trailing edge of the timeout only if the the debounced function is
     * invoked more than once during the `wait` timeout.
     *
     * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
     * for details over the differences between `_.debounce` and `_.throttle`.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to debounce.
     * @param {number} [wait=0] The number of milliseconds to delay.
     * @param {Object} [options] The options object.
     * @param {boolean} [options.leading=false] Specify invoking on the leading
     *  edge of the timeout.
     * @param {number} [options.maxWait] The maximum time `func` is allowed to be
     *  delayed before it is invoked.
     * @param {boolean} [options.trailing=true] Specify invoking on the trailing
     *  edge of the timeout.
     * @returns {Function} Returns the new debounced function.
     * @example
     *
     * // avoid costly calculations while the window size is in flux
     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
     *
     * // invoke `sendMail` when the click event is fired, debouncing subsequent calls
     * jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
     *   'leading': true,
     *   'trailing': false
     * }));
     *
     * // ensure `batchLog` is invoked once after 1 second of debounced calls
     * var source = new EventSource('/stream');
     * jQuery(source).on('message', _.debounce(batchLog, 250, {
     *   'maxWait': 1000
     * }));
     *
     * // cancel a debounced call
     * var todoChanges = _.debounce(batchLog, 1000);
     * Object.observe(models.todo, todoChanges);
     *
     * Object.observe(models, function(changes) {
     *   if (_.find(changes, { 'user': 'todo', 'type': 'delete'})) {
     *     todoChanges.cancel();
     *   }
     * }, ['delete']);
     *
     * // ...at some point `models.todo` is changed
     * models.todo.completed = true;
     *
     * // ...before 1 second has passed `models.todo` is deleted
     * // which cancels the debounced `todoChanges` call
     * delete models.todo;
     */
    function debounce(func, wait, options) {
      var args,
          maxTimeoutId,
          result,
          stamp,
          thisArg,
          timeoutId,
          trailingCall,
          lastCalled = 0,
          maxWait = false,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      wait = wait < 0 ? 0 : (+wait || 0);
      if (options === true) {
        var leading = true;
        trailing = false;
      } else if (isObject(options)) {
        leading = !!options.leading;
        maxWait = 'maxWait' in options && nativeMax(+options.maxWait || 0, wait);
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }

      function cancel() {
        if (timeoutId) {
          clearTimeout(timeoutId);
        }
        if (maxTimeoutId) {
          clearTimeout(maxTimeoutId);
        }
        lastCalled = 0;
        maxTimeoutId = timeoutId = trailingCall = undefined;
      }

      function complete(isCalled, id) {
        if (id) {
          clearTimeout(id);
        }
        maxTimeoutId = timeoutId = trailingCall = undefined;
        if (isCalled) {
          lastCalled = now();
          result = func.apply(thisArg, args);
          if (!timeoutId && !maxTimeoutId) {
            args = thisArg = undefined;
          }
        }
      }

      function delayed() {
        var remaining = wait - (now() - stamp);
        if (remaining <= 0 || remaining > wait) {
          complete(trailingCall, maxTimeoutId);
        } else {
          timeoutId = setTimeout(delayed, remaining);
        }
      }

      function maxDelayed() {
        complete(trailing, timeoutId);
      }

      function debounced() {
        args = arguments;
        stamp = now();
        thisArg = this;
        trailingCall = trailing && (timeoutId || !leading);

        if (maxWait === false) {
          var leadingCall = leading && !timeoutId;
        } else {
          if (!maxTimeoutId && !leading) {
            lastCalled = stamp;
          }
          var remaining = maxWait - (stamp - lastCalled),
              isCalled = remaining <= 0 || remaining > maxWait;

          if (isCalled) {
            if (maxTimeoutId) {
              maxTimeoutId = clearTimeout(maxTimeoutId);
            }
            lastCalled = stamp;
            result = func.apply(thisArg, args);
          }
          else if (!maxTimeoutId) {
            maxTimeoutId = setTimeout(maxDelayed, remaining);
          }
        }
        if (isCalled && timeoutId) {
          timeoutId = clearTimeout(timeoutId);
        }
        else if (!timeoutId && wait !== maxWait) {
          timeoutId = setTimeout(delayed, wait);
        }
        if (leadingCall) {
          isCalled = true;
          result = func.apply(thisArg, args);
        }
        if (isCalled && !timeoutId && !maxTimeoutId) {
          args = thisArg = undefined;
        }
        return result;
      }
      debounced.cancel = cancel;
      return debounced;
    }

    /**
     * Defers invoking the `func` until the current call stack has cleared. Any
     * additional arguments are provided to `func` when it is invoked.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to defer.
     * @param {...*} [args] The arguments to invoke the function with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.defer(function(text) {
     *   console.log(text);
     * }, 'deferred');
     * // logs 'deferred' after one or more milliseconds
     */
    var defer = restParam(function(func, args) {
      return baseDelay(func, 1, args);
    });

    /**
     * Invokes `func` after `wait` milliseconds. Any additional arguments are
     * provided to `func` when it is invoked.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {...*} [args] The arguments to invoke the function with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.delay(function(text) {
     *   console.log(text);
     * }, 1000, 'later');
     * // => logs 'later' after one second
     */
    var delay = restParam(function(func, wait, args) {
      return baseDelay(func, wait, args);
    });

    /**
     * Creates a function that returns the result of invoking the provided
     * functions with the `this` binding of the created function, where each
     * successive invocation is supplied the return value of the previous.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {...Function} [funcs] Functions to invoke.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flow(_.add, square);
     * addSquare(1, 2);
     * // => 9
     */
    var flow = createFlow();

    /**
     * This method is like `_.flow` except that it creates a function that
     * invokes the provided functions from right to left.
     *
     * @static
     * @memberOf _
     * @alias backflow, compose
     * @category Function
     * @param {...Function} [funcs] Functions to invoke.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flowRight(square, _.add);
     * addSquare(1, 2);
     * // => 9
     */
    var flowRight = createFlow(true);

    /**
     * Creates a function that memoizes the result of `func`. If `resolver` is
     * provided it determines the cache key for storing the result based on the
     * arguments provided to the memoized function. By default, the first argument
     * provided to the memoized function is coerced to a string and used as the
     * cache key. The `func` is invoked with the `this` binding of the memoized
     * function.
     *
     * **Note:** The cache is exposed as the `cache` property on the memoized
     * function. Its creation may be customized by replacing the `_.memoize.Cache`
     * constructor with one whose instances implement the [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object)
     * method interface of `get`, `has`, and `set`.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to have its output memoized.
     * @param {Function} [resolver] The function to resolve the cache key.
     * @returns {Function} Returns the new memoizing function.
     * @example
     *
     * var upperCase = _.memoize(function(string) {
     *   return string.toUpperCase();
     * });
     *
     * upperCase('fred');
     * // => 'FRED'
     *
     * // modifying the result cache
     * upperCase.cache.set('fred', 'BARNEY');
     * upperCase('fred');
     * // => 'BARNEY'
     *
     * // replacing `_.memoize.Cache`
     * var object = { 'user': 'fred' };
     * var other = { 'user': 'barney' };
     * var identity = _.memoize(_.identity);
     *
     * identity(object);
     * // => { 'user': 'fred' }
     * identity(other);
     * // => { 'user': 'fred' }
     *
     * _.memoize.Cache = WeakMap;
     * var identity = _.memoize(_.identity);
     *
     * identity(object);
     * // => { 'user': 'fred' }
     * identity(other);
     * // => { 'user': 'barney' }
     */
    function memoize(func, resolver) {
      if (typeof func != 'function' || (resolver && typeof resolver != 'function')) {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var memoized = function() {
        var args = arguments,
            key = resolver ? resolver.apply(this, args) : args[0],
            cache = memoized.cache;

        if (cache.has(key)) {
          return cache.get(key);
        }
        var result = func.apply(this, args);
        memoized.cache = cache.set(key, result);
        return result;
      };
      memoized.cache = new memoize.Cache;
      return memoized;
    }

    /**
     * Creates a function that runs each argument through a corresponding
     * transform function.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to wrap.
     * @param {...(Function|Function[])} [transforms] The functions to transform
     * arguments, specified as individual functions or arrays of functions.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function doubled(n) {
     *   return n * 2;
     * }
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var modded = _.modArgs(function(x, y) {
     *   return [x, y];
     * }, square, doubled);
     *
     * modded(1, 2);
     * // => [1, 4]
     *
     * modded(5, 10);
     * // => [25, 20]
     */
    var modArgs = restParam(function(func, transforms) {
      transforms = baseFlatten(transforms);
      if (typeof func != 'function' || !arrayEvery(transforms, baseIsFunction)) {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var length = transforms.length;
      return restParam(function(args) {
        var index = nativeMin(args.length, length);
        while (index--) {
          args[index] = transforms[index](args[index]);
        }
        return func.apply(this, args);
      });
    });

    /**
     * Creates a function that negates the result of the predicate `func`. The
     * `func` predicate is invoked with the `this` binding and arguments of the
     * created function.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} predicate The predicate to negate.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function isEven(n) {
     *   return n % 2 == 0;
     * }
     *
     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
     * // => [1, 3, 5]
     */
    function negate(predicate) {
      if (typeof predicate != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return function() {
        return !predicate.apply(this, arguments);
      };
    }

    /**
     * Creates a function that is restricted to invoking `func` once. Repeat calls
     * to the function return the value of the first call. The `func` is invoked
     * with the `this` binding and arguments of the created function.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var initialize = _.once(createApplication);
     * initialize();
     * initialize();
     * // `initialize` invokes `createApplication` once
     */
    function once(func) {
      return before(2, func);
    }

    /**
     * Creates a function that invokes `func` with `partial` arguments prepended
     * to those provided to the new function. This method is like `_.bind` except
     * it does **not** alter the `this` binding.
     *
     * The `_.partial.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method does not set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * var greet = function(greeting, name) {
     *   return greeting + ' ' + name;
     * };
     *
     * var sayHelloTo = _.partial(greet, 'hello');
     * sayHelloTo('fred');
     * // => 'hello fred'
     *
     * // using placeholders
     * var greetFred = _.partial(greet, _, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     */
    var partial = createPartial(PARTIAL_FLAG);

    /**
     * This method is like `_.partial` except that partially applied arguments
     * are appended to those provided to the new function.
     *
     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method does not set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * var greet = function(greeting, name) {
     *   return greeting + ' ' + name;
     * };
     *
     * var greetFred = _.partialRight(greet, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     *
     * // using placeholders
     * var sayHelloTo = _.partialRight(greet, 'hello', _);
     * sayHelloTo('fred');
     * // => 'hello fred'
     */
    var partialRight = createPartial(PARTIAL_RIGHT_FLAG);

    /**
     * Creates a function that invokes `func` with arguments arranged according
     * to the specified indexes where the argument value at the first index is
     * provided as the first argument, the argument value at the second index is
     * provided as the second argument, and so on.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to rearrange arguments for.
     * @param {...(number|number[])} indexes The arranged argument indexes,
     *  specified as individual indexes or arrays of indexes.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var rearged = _.rearg(function(a, b, c) {
     *   return [a, b, c];
     * }, 2, 0, 1);
     *
     * rearged('b', 'c', 'a')
     * // => ['a', 'b', 'c']
     *
     * var map = _.rearg(_.map, [1, 0]);
     * map(function(n) {
     *   return n * 3;
     * }, [1, 2, 3]);
     * // => [3, 6, 9]
     */
    var rearg = restParam(function(func, indexes) {
      return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes));
    });

    /**
     * Creates a function that invokes `func` with the `this` binding of the
     * created function and arguments from `start` and beyond provided as an array.
     *
     * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters).
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.restParam(function(what, names) {
     *   return what + ' ' + _.initial(names).join(', ') +
     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
     * });
     *
     * say('hello', 'fred', 'barney', 'pebbles');
     * // => 'hello fred, barney, & pebbles'
     */
    function restParam(func, start) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);
      return function() {
        var args = arguments,
            index = -1,
            length = nativeMax(args.length - start, 0),
            rest = Array(length);

        while (++index < length) {
          rest[index] = args[start + index];
        }
        switch (start) {
          case 0: return func.call(this, rest);
          case 1: return func.call(this, args[0], rest);
          case 2: return func.call(this, args[0], args[1], rest);
        }
        var otherArgs = Array(start + 1);
        index = -1;
        while (++index < start) {
          otherArgs[index] = args[index];
        }
        otherArgs[start] = rest;
        return func.apply(this, otherArgs);
      };
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of the created
     * function and an array of arguments much like [`Function#apply`](https://es5.github.io/#x15.3.4.3).
     *
     * **Note:** This method is based on the [spread operator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator).
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to spread arguments over.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.spread(function(who, what) {
     *   return who + ' says ' + what;
     * });
     *
     * say(['fred', 'hello']);
     * // => 'fred says hello'
     *
     * // with a Promise
     * var numbers = Promise.all([
     *   Promise.resolve(40),
     *   Promise.resolve(36)
     * ]);
     *
     * numbers.then(_.spread(function(x, y) {
     *   return x + y;
     * }));
     * // => a Promise of 76
     */
    function spread(func) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return function(array) {
        return func.apply(this, array);
      };
    }

    /**
     * Creates a throttled function that only invokes `func` at most once per
     * every `wait` milliseconds. The throttled function comes with a `cancel`
     * method to cancel delayed invocations. Provide an options object to indicate
     * that `func` should be invoked on the leading and/or trailing edge of the
     * `wait` timeout. Subsequent calls to the throttled function return the
     * result of the last `func` call.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
     * on the trailing edge of the timeout only if the the throttled function is
     * invoked more than once during the `wait` timeout.
     *
     * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
     * for details over the differences between `_.throttle` and `_.debounce`.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {Function} func The function to throttle.
     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
     * @param {Object} [options] The options object.
     * @param {boolean} [options.leading=true] Specify invoking on the leading
     *  edge of the timeout.
     * @param {boolean} [options.trailing=true] Specify invoking on the trailing
     *  edge of the timeout.
     * @returns {Function} Returns the new throttled function.
     * @example
     *
     * // avoid excessively updating the position while scrolling
     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
     *
     * // invoke `renewToken` when the click event is fired, but not more than once every 5 minutes
     * jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
     *   'trailing': false
     * }));
     *
     * // cancel a trailing throttled call
     * jQuery(window).on('popstate', throttled.cancel);
     */
    function throttle(func, wait, options) {
      var leading = true,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      if (options === false) {
        leading = false;
      } else if (isObject(options)) {
        leading = 'leading' in options ? !!options.leading : leading;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }
      return debounce(func, wait, { 'leading': leading, 'maxWait': +wait, 'trailing': trailing });
    }

    /**
     * Creates a function that provides `value` to the wrapper function as its
     * first argument. Any additional arguments provided to the function are
     * appended to those provided to the wrapper function. The wrapper is invoked
     * with the `this` binding of the created function.
     *
     * @static
     * @memberOf _
     * @category Function
     * @param {*} value The value to wrap.
     * @param {Function} wrapper The wrapper function.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var p = _.wrap(_.escape, function(func, text) {
     *   return '<p>' + func(text) + '</p>';
     * });
     *
     * p('fred, barney, & pebbles');
     * // => '<p>fred, barney, &amp; pebbles</p>'
     */
    function wrap(value, wrapper) {
      wrapper = wrapper == null ? identity : wrapper;
      return createWrapper(wrapper, PARTIAL_FLAG, undefined, [value], []);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates a clone of `value`. If `isDeep` is `true` nested objects are cloned,
     * otherwise they are assigned by reference. If `customizer` is provided it is
     * invoked to produce the cloned values. If `customizer` returns `undefined`
     * cloning is handled by the method instead. The `customizer` is bound to
     * `thisArg` and invoked with two argument; (value [, index|key, object]).
     *
     * **Note:** This method is loosely based on the
     * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm).
     * The enumerable properties of `arguments` objects and objects created by
     * constructors other than `Object` are cloned to plain `Object` objects. An
     * empty object is returned for uncloneable values such as functions, DOM nodes,
     * Maps, Sets, and WeakMaps.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @param {Function} [customizer] The function to customize cloning values.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {*} Returns the cloned value.
     * @example
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * var shallow = _.clone(users);
     * shallow[0] === users[0];
     * // => true
     *
     * var deep = _.clone(users, true);
     * deep[0] === users[0];
     * // => false
     *
     * // using a customizer callback
     * var el = _.clone(document.body, function(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(false);
     *   }
     * });
     *
     * el === document.body
     * // => false
     * el.nodeName
     * // => BODY
     * el.childNodes.length;
     * // => 0
     */
    function clone(value, isDeep, customizer, thisArg) {
      if (isDeep && typeof isDeep != 'boolean' && isIterateeCall(value, isDeep, customizer)) {
        isDeep = false;
      }
      else if (typeof isDeep == 'function') {
        thisArg = customizer;
        customizer = isDeep;
        isDeep = false;
      }
      return typeof customizer == 'function'
        ? baseClone(value, isDeep, bindCallback(customizer, thisArg, 1))
        : baseClone(value, isDeep);
    }

    /**
     * Creates a deep clone of `value`. If `customizer` is provided it is invoked
     * to produce the cloned values. If `customizer` returns `undefined` cloning
     * is handled by the method instead. The `customizer` is bound to `thisArg`
     * and invoked with two argument; (value [, index|key, object]).
     *
     * **Note:** This method is loosely based on the
     * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm).
     * The enumerable properties of `arguments` objects and objects created by
     * constructors other than `Object` are cloned to plain `Object` objects. An
     * empty object is returned for uncloneable values such as functions, DOM nodes,
     * Maps, Sets, and WeakMaps.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to deep clone.
     * @param {Function} [customizer] The function to customize cloning values.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {*} Returns the deep cloned value.
     * @example
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * var deep = _.cloneDeep(users);
     * deep[0] === users[0];
     * // => false
     *
     * // using a customizer callback
     * var el = _.cloneDeep(document.body, function(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(true);
     *   }
     * });
     *
     * el === document.body
     * // => false
     * el.nodeName
     * // => BODY
     * el.childNodes.length;
     * // => 20
     */
    function cloneDeep(value, customizer, thisArg) {
      return typeof customizer == 'function'
        ? baseClone(value, true, bindCallback(customizer, thisArg, 1))
        : baseClone(value, true);
    }

    /**
     * Checks if `value` is greater than `other`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than `other`, else `false`.
     * @example
     *
     * _.gt(3, 1);
     * // => true
     *
     * _.gt(3, 3);
     * // => false
     *
     * _.gt(1, 3);
     * // => false
     */
    function gt(value, other) {
      return value > other;
    }

    /**
     * Checks if `value` is greater than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than or equal to `other`, else `false`.
     * @example
     *
     * _.gte(3, 1);
     * // => true
     *
     * _.gte(3, 3);
     * // => true
     *
     * _.gte(1, 3);
     * // => false
     */
    function gte(value, other) {
      return value >= other;
    }

    /**
     * Checks if `value` is classified as an `arguments` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isArguments(function() { return arguments; }());
     * // => true
     *
     * _.isArguments([1, 2, 3]);
     * // => false
     */
    function isArguments(value) {
      return isObjectLike(value) && isArrayLike(value) &&
        hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');
    }

    /**
     * Checks if `value` is classified as an `Array` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isArray([1, 2, 3]);
     * // => true
     *
     * _.isArray(function() { return arguments; }());
     * // => false
     */
    var isArray = nativeIsArray || function(value) {
      return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;
    };

    /**
     * Checks if `value` is classified as a boolean primitive or object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isBoolean(false);
     * // => true
     *
     * _.isBoolean(null);
     * // => false
     */
    function isBoolean(value) {
      return value === true || value === false || (isObjectLike(value) && objToString.call(value) == boolTag);
    }

    /**
     * Checks if `value` is classified as a `Date` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isDate(new Date);
     * // => true
     *
     * _.isDate('Mon April 23 2012');
     * // => false
     */
    function isDate(value) {
      return isObjectLike(value) && objToString.call(value) == dateTag;
    }

    /**
     * Checks if `value` is a DOM element.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
     * @example
     *
     * _.isElement(document.body);
     * // => true
     *
     * _.isElement('<body>');
     * // => false
     */
    function isElement(value) {
      return !!value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value);
    }

    /**
     * Checks if `value` is empty. A value is considered empty unless it is an
     * `arguments` object, array, string, or jQuery-like collection with a length
     * greater than `0` or an object with own enumerable properties.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {Array|Object|string} value The value to inspect.
     * @returns {boolean} Returns `true` if `value` is empty, else `false`.
     * @example
     *
     * _.isEmpty(null);
     * // => true
     *
     * _.isEmpty(true);
     * // => true
     *
     * _.isEmpty(1);
     * // => true
     *
     * _.isEmpty([1, 2, 3]);
     * // => false
     *
     * _.isEmpty({ 'a': 1 });
     * // => false
     */
    function isEmpty(value) {
      if (value == null) {
        return true;
      }
      if (isArrayLike(value) && (isArray(value) || isString(value) || isArguments(value) ||
          (isObjectLike(value) && isFunction(value.splice)))) {
        return !value.length;
      }
      return !keys(value).length;
    }

    /**
     * Performs a deep comparison between two values to determine if they are
     * equivalent. If `customizer` is provided it is invoked to compare values.
     * If `customizer` returns `undefined` comparisons are handled by the method
     * instead. The `customizer` is bound to `thisArg` and invoked with three
     * arguments: (value, other [, index|key]).
     *
     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
     * numbers, `Object` objects, regexes, and strings. Objects are compared by
     * their own, not inherited, enumerable properties. Functions and DOM nodes
     * are **not** supported. Provide a customizer function to extend support
     * for comparing other values.
     *
     * @static
     * @memberOf _
     * @alias eq
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {Function} [customizer] The function to customize value comparisons.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * var object = { 'user': 'fred' };
     * var other = { 'user': 'fred' };
     *
     * object == other;
     * // => false
     *
     * _.isEqual(object, other);
     * // => true
     *
     * // using a customizer callback
     * var array = ['hello', 'goodbye'];
     * var other = ['hi', 'goodbye'];
     *
     * _.isEqual(array, other, function(value, other) {
     *   if (_.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/)) {
     *     return true;
     *   }
     * });
     * // => true
     */
    function isEqual(value, other, customizer, thisArg) {
      customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
      var result = customizer ? customizer(value, other) : undefined;
      return  result === undefined ? baseIsEqual(value, other, customizer) : !!result;
    }

    /**
     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
     * `SyntaxError`, `TypeError`, or `URIError` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
     * @example
     *
     * _.isError(new Error);
     * // => true
     *
     * _.isError(Error);
     * // => false
     */
    function isError(value) {
      return isObjectLike(value) && typeof value.message == 'string' && objToString.call(value) == errorTag;
    }

    /**
     * Checks if `value` is a finite primitive number.
     *
     * **Note:** This method is based on [`Number.isFinite`](http://ecma-international.org/ecma-262/6.0/#sec-number.isfinite).
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
     * @example
     *
     * _.isFinite(10);
     * // => true
     *
     * _.isFinite('10');
     * // => false
     *
     * _.isFinite(true);
     * // => false
     *
     * _.isFinite(Object(10));
     * // => false
     *
     * _.isFinite(Infinity);
     * // => false
     */
    function isFinite(value) {
      return typeof value == 'number' && nativeIsFinite(value);
    }

    /**
     * Checks if `value` is classified as a `Function` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isFunction(_);
     * // => true
     *
     * _.isFunction(/abc/);
     * // => false
     */
    function isFunction(value) {
      // The use of `Object#toString` avoids issues with the `typeof` operator
      // in older versions of Chrome and Safari which return 'function' for regexes
      // and Safari 8 equivalents which return 'object' for typed array constructors.
      return isObject(value) && objToString.call(value) == funcTag;
    }

    /**
     * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
     * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an object, else `false`.
     * @example
     *
     * _.isObject({});
     * // => true
     *
     * _.isObject([1, 2, 3]);
     * // => true
     *
     * _.isObject(1);
     * // => false
     */
    function isObject(value) {
      // Avoid a V8 JIT bug in Chrome 19-20.
      // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
      var type = typeof value;
      return !!value && (type == 'object' || type == 'function');
    }

    /**
     * Performs a deep comparison between `object` and `source` to determine if
     * `object` contains equivalent property values. If `customizer` is provided
     * it is invoked to compare values. If `customizer` returns `undefined`
     * comparisons are handled by the method instead. The `customizer` is bound
     * to `thisArg` and invoked with three arguments: (value, other, index|key).
     *
     * **Note:** This method supports comparing properties of arrays, booleans,
     * `Date` objects, numbers, `Object` objects, regexes, and strings. Functions
     * and DOM nodes are **not** supported. Provide a customizer function to extend
     * support for comparing other values.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @param {Function} [customizer] The function to customize value comparisons.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     * @example
     *
     * var object = { 'user': 'fred', 'age': 40 };
     *
     * _.isMatch(object, { 'age': 40 });
     * // => true
     *
     * _.isMatch(object, { 'age': 36 });
     * // => false
     *
     * // using a customizer callback
     * var object = { 'greeting': 'hello' };
     * var source = { 'greeting': 'hi' };
     *
     * _.isMatch(object, source, function(value, other) {
     *   return _.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/) || undefined;
     * });
     * // => true
     */
    function isMatch(object, source, customizer, thisArg) {
      customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
      return baseIsMatch(object, getMatchData(source), customizer);
    }

    /**
     * Checks if `value` is `NaN`.
     *
     * **Note:** This method is not the same as [`isNaN`](https://es5.github.io/#x15.1.2.4)
     * which returns `true` for `undefined` and other non-numeric values.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
     * @example
     *
     * _.isNaN(NaN);
     * // => true
     *
     * _.isNaN(new Number(NaN));
     * // => true
     *
     * isNaN(undefined);
     * // => true
     *
     * _.isNaN(undefined);
     * // => false
     */
    function isNaN(value) {
      // An `NaN` primitive is the only value that is not equal to itself.
      // Perform the `toStringTag` check first to avoid errors with some host objects in IE.
      return isNumber(value) && value != +value;
    }

    /**
     * Checks if `value` is a native function.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
     * @example
     *
     * _.isNative(Array.prototype.push);
     * // => true
     *
     * _.isNative(_);
     * // => false
     */
    function isNative(value) {
      if (value == null) {
        return false;
      }
      if (isFunction(value)) {
        return reIsNative.test(fnToString.call(value));
      }
      return isObjectLike(value) && reIsHostCtor.test(value);
    }

    /**
     * Checks if `value` is `null`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
     * @example
     *
     * _.isNull(null);
     * // => true
     *
     * _.isNull(void 0);
     * // => false
     */
    function isNull(value) {
      return value === null;
    }

    /**
     * Checks if `value` is classified as a `Number` primitive or object.
     *
     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are classified
     * as numbers, use the `_.isFinite` method.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isNumber(8.4);
     * // => true
     *
     * _.isNumber(NaN);
     * // => true
     *
     * _.isNumber('8.4');
     * // => false
     */
    function isNumber(value) {
      return typeof value == 'number' || (isObjectLike(value) && objToString.call(value) == numberTag);
    }

    /**
     * Checks if `value` is a plain object, that is, an object created by the
     * `Object` constructor or one with a `[[Prototype]]` of `null`.
     *
     * **Note:** This method assumes objects created by the `Object` constructor
     * have no inherited enumerable properties.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * _.isPlainObject(new Foo);
     * // => false
     *
     * _.isPlainObject([1, 2, 3]);
     * // => false
     *
     * _.isPlainObject({ 'x': 0, 'y': 0 });
     * // => true
     *
     * _.isPlainObject(Object.create(null));
     * // => true
     */
    function isPlainObject(value) {
      var Ctor;

      // Exit early for non `Object` objects.
      if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||
          (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {
        return false;
      }
      // IE < 9 iterates inherited properties before own properties. If the first
      // iterated property is an object's own property then there are no inherited
      // enumerable properties.
      var result;
      // In most environments an object's own properties are iterated before
      // its inherited properties. If the last iterated property is an object's
      // own property then there are no inherited enumerable properties.
      baseForIn(value, function(subValue, key) {
        result = key;
      });
      return result === undefined || hasOwnProperty.call(value, result);
    }

    /**
     * Checks if `value` is classified as a `RegExp` object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isRegExp(/abc/);
     * // => true
     *
     * _.isRegExp('/abc/');
     * // => false
     */
    function isRegExp(value) {
      return isObject(value) && objToString.call(value) == regexpTag;
    }

    /**
     * Checks if `value` is classified as a `String` primitive or object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isString('abc');
     * // => true
     *
     * _.isString(1);
     * // => false
     */
    function isString(value) {
      return typeof value == 'string' || (isObjectLike(value) && objToString.call(value) == stringTag);
    }

    /**
     * Checks if `value` is classified as a typed array.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
     * @example
     *
     * _.isTypedArray(new Uint8Array);
     * // => true
     *
     * _.isTypedArray([]);
     * // => false
     */
    function isTypedArray(value) {
      return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];
    }

    /**
     * Checks if `value` is `undefined`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
     * @example
     *
     * _.isUndefined(void 0);
     * // => true
     *
     * _.isUndefined(null);
     * // => false
     */
    function isUndefined(value) {
      return value === undefined;
    }

    /**
     * Checks if `value` is less than `other`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than `other`, else `false`.
     * @example
     *
     * _.lt(1, 3);
     * // => true
     *
     * _.lt(3, 3);
     * // => false
     *
     * _.lt(3, 1);
     * // => false
     */
    function lt(value, other) {
      return value < other;
    }

    /**
     * Checks if `value` is less than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than or equal to `other`, else `false`.
     * @example
     *
     * _.lte(1, 3);
     * // => true
     *
     * _.lte(3, 3);
     * // => true
     *
     * _.lte(3, 1);
     * // => false
     */
    function lte(value, other) {
      return value <= other;
    }

    /**
     * Converts `value` to an array.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Array} Returns the converted array.
     * @example
     *
     * (function() {
     *   return _.toArray(arguments).slice(1);
     * }(1, 2, 3));
     * // => [2, 3]
     */
    function toArray(value) {
      var length = value ? getLength(value) : 0;
      if (!isLength(length)) {
        return values(value);
      }
      if (!length) {
        return [];
      }
      return arrayCopy(value);
    }

    /**
     * Converts `value` to a plain object flattening inherited enumerable
     * properties of `value` to own properties of the plain object.
     *
     * @static
     * @memberOf _
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Object} Returns the converted plain object.
     * @example
     *
     * function Foo() {
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.assign({ 'a': 1 }, new Foo);
     * // => { 'a': 1, 'b': 2 }
     *
     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
     * // => { 'a': 1, 'b': 2, 'c': 3 }
     */
    function toPlainObject(value) {
      return baseCopy(value, keysIn(value));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Recursively merges own enumerable properties of the source object(s), that
     * don't resolve to `undefined` into the destination object. Subsequent sources
     * overwrite property assignments of previous sources. If `customizer` is
     * provided it is invoked to produce the merged values of the destination and
     * source properties. If `customizer` returns `undefined` merging is handled
     * by the method instead. The `customizer` is bound to `thisArg` and invoked
     * with five arguments: (objectValue, sourceValue, key, object, source).
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var users = {
     *   'data': [{ 'user': 'barney' }, { 'user': 'fred' }]
     * };
     *
     * var ages = {
     *   'data': [{ 'age': 36 }, { 'age': 40 }]
     * };
     *
     * _.merge(users, ages);
     * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }
     *
     * // using a customizer callback
     * var object = {
     *   'fruits': ['apple'],
     *   'vegetables': ['beet']
     * };
     *
     * var other = {
     *   'fruits': ['banana'],
     *   'vegetables': ['carrot']
     * };
     *
     * _.merge(object, other, function(a, b) {
     *   if (_.isArray(a)) {
     *     return a.concat(b);
     *   }
     * });
     * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }
     */
    var merge = createAssigner(baseMerge);

    /**
     * Assigns own enumerable properties of source object(s) to the destination
     * object. Subsequent sources overwrite property assignments of previous sources.
     * If `customizer` is provided it is invoked to produce the assigned values.
     * The `customizer` is bound to `thisArg` and invoked with five arguments:
     * (objectValue, sourceValue, key, object, source).
     *
     * **Note:** This method mutates `object` and is based on
     * [`Object.assign`](http://ecma-international.org/ecma-262/6.0/#sec-object.assign).
     *
     * @static
     * @memberOf _
     * @alias extend
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @param {*} [thisArg] The `this` binding of `customizer`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * _.assign({ 'user': 'barney' }, { 'age': 40 }, { 'user': 'fred' });
     * // => { 'user': 'fred', 'age': 40 }
     *
     * // using a customizer callback
     * var defaults = _.partialRight(_.assign, function(value, other) {
     *   return _.isUndefined(value) ? other : value;
     * });
     *
     * defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
     * // => { 'user': 'barney', 'age': 36 }
     */
    var assign = createAssigner(function(object, source, customizer) {
      return customizer
        ? assignWith(object, source, customizer)
        : baseAssign(object, source);
    });

    /**
     * Creates an object that inherits from the given `prototype` object. If a
     * `properties` object is provided its own enumerable properties are assigned
     * to the created object.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} prototype The object to inherit from.
     * @param {Object} [properties] The properties to assign to the object.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Object} Returns the new object.
     * @example
     *
     * function Shape() {
     *   this.x = 0;
     *   this.y = 0;
     * }
     *
     * function Circle() {
     *   Shape.call(this);
     * }
     *
     * Circle.prototype = _.create(Shape.prototype, {
     *   'constructor': Circle
     * });
     *
     * var circle = new Circle;
     * circle instanceof Circle;
     * // => true
     *
     * circle instanceof Shape;
     * // => true
     */
    function create(prototype, properties, guard) {
      var result = baseCreate(prototype);
      if (guard && isIterateeCall(prototype, properties, guard)) {
        properties = undefined;
      }
      return properties ? baseAssign(result, properties) : result;
    }

    /**
     * Assigns own enumerable properties of source object(s) to the destination
     * object for all destination properties that resolve to `undefined`. Once a
     * property is set, additional values of the same property are ignored.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @example
     *
     * _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
     * // => { 'user': 'barney', 'age': 36 }
     */
    var defaults = createDefaults(assign, assignDefaults);

    /**
     * This method is like `_.defaults` except that it recursively assigns
     * default properties.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @example
     *
     * _.defaultsDeep({ 'user': { 'name': 'barney' } }, { 'user': { 'name': 'fred', 'age': 36 } });
     * // => { 'user': { 'name': 'barney', 'age': 36 } }
     *
     */
    var defaultsDeep = createDefaults(merge, mergeDefaults);

    /**
     * This method is like `_.find` except that it returns the key of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {string|undefined} Returns the key of the matched element, else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findKey(users, function(chr) {
     *   return chr.age < 40;
     * });
     * // => 'barney' (iteration order is not guaranteed)
     *
     * // using the `_.matches` callback shorthand
     * _.findKey(users, { 'age': 1, 'active': true });
     * // => 'pebbles'
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.findKey(users, 'active', false);
     * // => 'fred'
     *
     * // using the `_.property` callback shorthand
     * _.findKey(users, 'active');
     * // => 'barney'
     */
    var findKey = createFindKey(baseForOwn);

    /**
     * This method is like `_.findKey` except that it iterates over elements of
     * a collection in the opposite order.
     *
     * If a property name is provided for `predicate` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `predicate` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to search.
     * @param {Function|Object|string} [predicate=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {string|undefined} Returns the key of the matched element, else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findLastKey(users, function(chr) {
     *   return chr.age < 40;
     * });
     * // => returns `pebbles` assuming `_.findKey` returns `barney`
     *
     * // using the `_.matches` callback shorthand
     * _.findLastKey(users, { 'age': 36, 'active': true });
     * // => 'barney'
     *
     * // using the `_.matchesProperty` callback shorthand
     * _.findLastKey(users, 'active', false);
     * // => 'fred'
     *
     * // using the `_.property` callback shorthand
     * _.findLastKey(users, 'active');
     * // => 'pebbles'
     */
    var findLastKey = createFindKey(baseForOwnRight);

    /**
     * Iterates over own and inherited enumerable properties of an object invoking
     * `iteratee` for each property. The `iteratee` is bound to `thisArg` and invoked
     * with three arguments: (value, key, object). Iteratee functions may exit
     * iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forIn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => logs 'a', 'b', and 'c' (iteration order is not guaranteed)
     */
    var forIn = createForIn(baseFor);

    /**
     * This method is like `_.forIn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forInRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => logs 'c', 'b', and 'a' assuming `_.forIn ` logs 'a', 'b', and 'c'
     */
    var forInRight = createForIn(baseForRight);

    /**
     * Iterates over own enumerable properties of an object invoking `iteratee`
     * for each property. The `iteratee` is bound to `thisArg` and invoked with
     * three arguments: (value, key, object). Iteratee functions may exit iteration
     * early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => logs 'a' and 'b' (iteration order is not guaranteed)
     */
    var forOwn = createForOwn(baseForOwn);

    /**
     * This method is like `_.forOwn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwnRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => logs 'b' and 'a' assuming `_.forOwn` logs 'a' and 'b'
     */
    var forOwnRight = createForOwn(baseForOwnRight);

    /**
     * Creates an array of function property names from all enumerable properties,
     * own and inherited, of `object`.
     *
     * @static
     * @memberOf _
     * @alias methods
     * @category Object
     * @param {Object} object The object to inspect.
     * @returns {Array} Returns the new array of property names.
     * @example
     *
     * _.functions(_);
     * // => ['after', 'ary', 'assign', ...]
     */
    function functions(object) {
      return baseFunctions(object, keysIn(object));
    }

    /**
     * Gets the property value at `path` of `object`. If the resolved value is
     * `undefined` the `defaultValue` is used in its place.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to get.
     * @param {*} [defaultValue] The value returned if the resolved value is `undefined`.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.get(object, 'a[0].b.c');
     * // => 3
     *
     * _.get(object, ['a', '0', 'b', 'c']);
     * // => 3
     *
     * _.get(object, 'a.b.c', 'default');
     * // => 'default'
     */
    function get(object, path, defaultValue) {
      var result = object == null ? undefined : baseGet(object, toPath(path), path + '');
      return result === undefined ? defaultValue : result;
    }

    /**
     * Checks if `path` is a direct property.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @returns {boolean} Returns `true` if `path` is a direct property, else `false`.
     * @example
     *
     * var object = { 'a': { 'b': { 'c': 3 } } };
     *
     * _.has(object, 'a');
     * // => true
     *
     * _.has(object, 'a.b.c');
     * // => true
     *
     * _.has(object, ['a', 'b', 'c']);
     * // => true
     */
    function has(object, path) {
      if (object == null) {
        return false;
      }
      var result = hasOwnProperty.call(object, path);
      if (!result && !isKey(path)) {
        path = toPath(path);
        object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
        if (object == null) {
          return false;
        }
        path = last(path);
        result = hasOwnProperty.call(object, path);
      }
      return result || (isLength(object.length) && isIndex(path, object.length) &&
        (isArray(object) || isArguments(object)));
    }

    /**
     * Creates an object composed of the inverted keys and values of `object`.
     * If `object` contains duplicate values, subsequent values overwrite property
     * assignments of previous values unless `multiValue` is `true`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to invert.
     * @param {boolean} [multiValue] Allow multiple values per key.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Object} Returns the new inverted object.
     * @example
     *
     * var object = { 'a': 1, 'b': 2, 'c': 1 };
     *
     * _.invert(object);
     * // => { '1': 'c', '2': 'b' }
     *
     * // with `multiValue`
     * _.invert(object, true);
     * // => { '1': ['a', 'c'], '2': ['b'] }
     */
    function invert(object, multiValue, guard) {
      if (guard && isIterateeCall(object, multiValue, guard)) {
        multiValue = undefined;
      }
      var index = -1,
          props = keys(object),
          length = props.length,
          result = {};

      while (++index < length) {
        var key = props[index],
            value = object[key];

        if (multiValue) {
          if (hasOwnProperty.call(result, value)) {
            result[value].push(key);
          } else {
            result[value] = [key];
          }
        }
        else {
          result[value] = key;
        }
      }
      return result;
    }

    /**
     * Creates an array of the own enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects. See the
     * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
     * for more details.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keys(new Foo);
     * // => ['a', 'b'] (iteration order is not guaranteed)
     *
     * _.keys('hi');
     * // => ['0', '1']
     */
    var keys = !nativeKeys ? shimKeys : function(object) {
      var Ctor = object == null ? undefined : object.constructor;
      if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
          (typeof object != 'function' && isArrayLike(object))) {
        return shimKeys(object);
      }
      return isObject(object) ? nativeKeys(object) : [];
    };

    /**
     * Creates an array of the own and inherited enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keysIn(new Foo);
     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
     */
    function keysIn(object) {
      if (object == null) {
        return [];
      }
      if (!isObject(object)) {
        object = Object(object);
      }
      var length = object.length;
      length = (length && isLength(length) &&
        (isArray(object) || isArguments(object)) && length) || 0;

      var Ctor = object.constructor,
          index = -1,
          isProto = typeof Ctor == 'function' && Ctor.prototype === object,
          result = Array(length),
          skipIndexes = length > 0;

      while (++index < length) {
        result[index] = (index + '');
      }
      for (var key in object) {
        if (!(skipIndexes && isIndex(key, length)) &&
            !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * The opposite of `_.mapValues`; this method creates an object with the
     * same values as `object` and keys generated by running each own enumerable
     * property of `object` through `iteratee`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns the new mapped object.
     * @example
     *
     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
     *   return key + value;
     * });
     * // => { 'a1': 1, 'b2': 2 }
     */
    var mapKeys = createObjectMapper(true);

    /**
     * Creates an object with the same keys as `object` and values generated by
     * running each own enumerable property of `object` through `iteratee`. The
     * iteratee function is bound to `thisArg` and invoked with three arguments:
     * (value, key, object).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
     *  per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Object} Returns the new mapped object.
     * @example
     *
     * _.mapValues({ 'a': 1, 'b': 2 }, function(n) {
     *   return n * 3;
     * });
     * // => { 'a': 3, 'b': 6 }
     *
     * var users = {
     *   'fred':    { 'user': 'fred',    'age': 40 },
     *   'pebbles': { 'user': 'pebbles', 'age': 1 }
     * };
     *
     * // using the `_.property` callback shorthand
     * _.mapValues(users, 'age');
     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
     */
    var mapValues = createObjectMapper();

    /**
     * The opposite of `_.pick`; this method creates an object composed of the
     * own and inherited enumerable properties of `object` that are not omitted.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {Function|...(string|string[])} [predicate] The function invoked per
     *  iteration or property names to omit, specified as individual property
     *  names or arrays of property names.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'user': 'fred', 'age': 40 };
     *
     * _.omit(object, 'age');
     * // => { 'user': 'fred' }
     *
     * _.omit(object, _.isNumber);
     * // => { 'user': 'fred' }
     */
    var omit = restParam(function(object, props) {
      if (object == null) {
        return {};
      }
      if (typeof props[0] != 'function') {
        var props = arrayMap(baseFlatten(props), String);
        return pickByArray(object, baseDifference(keysIn(object), props));
      }
      var predicate = bindCallback(props[0], props[1], 3);
      return pickByCallback(object, function(value, key, object) {
        return !predicate(value, key, object);
      });
    });

    /**
     * Creates a two dimensional array of the key-value pairs for `object`,
     * e.g. `[[key1, value1], [key2, value2]]`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the new array of key-value pairs.
     * @example
     *
     * _.pairs({ 'barney': 36, 'fred': 40 });
     * // => [['barney', 36], ['fred', 40]] (iteration order is not guaranteed)
     */
    function pairs(object) {
      object = toObject(object);

      var index = -1,
          props = keys(object),
          length = props.length,
          result = Array(length);

      while (++index < length) {
        var key = props[index];
        result[index] = [key, object[key]];
      }
      return result;
    }

    /**
     * Creates an object composed of the picked `object` properties. Property
     * names may be specified as individual arguments or as arrays of property
     * names. If `predicate` is provided it is invoked for each property of `object`
     * picking the properties `predicate` returns truthy for. The predicate is
     * bound to `thisArg` and invoked with three arguments: (value, key, object).
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {Function|...(string|string[])} [predicate] The function invoked per
     *  iteration or property names to pick, specified as individual property
     *  names or arrays of property names.
     * @param {*} [thisArg] The `this` binding of `predicate`.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'user': 'fred', 'age': 40 };
     *
     * _.pick(object, 'user');
     * // => { 'user': 'fred' }
     *
     * _.pick(object, _.isString);
     * // => { 'user': 'fred' }
     */
    var pick = restParam(function(object, props) {
      if (object == null) {
        return {};
      }
      return typeof props[0] == 'function'
        ? pickByCallback(object, bindCallback(props[0], props[1], 3))
        : pickByArray(object, baseFlatten(props));
    });

    /**
     * This method is like `_.get` except that if the resolved value is a function
     * it is invoked with the `this` binding of its parent object and its result
     * is returned.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to resolve.
     * @param {*} [defaultValue] The value returned if the resolved value is `undefined`.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
     *
     * _.result(object, 'a[0].b.c1');
     * // => 3
     *
     * _.result(object, 'a[0].b.c2');
     * // => 4
     *
     * _.result(object, 'a.b.c', 'default');
     * // => 'default'
     *
     * _.result(object, 'a.b.c', _.constant('default'));
     * // => 'default'
     */
    function result(object, path, defaultValue) {
      var result = object == null ? undefined : object[path];
      if (result === undefined) {
        if (object != null && !isKey(path, object)) {
          path = toPath(path);
          object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
          result = object == null ? undefined : object[last(path)];
        }
        result = result === undefined ? defaultValue : result;
      }
      return isFunction(result) ? result.call(object) : result;
    }

    /**
     * Sets the property value of `path` on `object`. If a portion of `path`
     * does not exist it is created.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to augment.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.set(object, 'a[0].b.c', 4);
     * console.log(object.a[0].b.c);
     * // => 4
     *
     * _.set(object, 'x[0].y.z', 5);
     * console.log(object.x[0].y.z);
     * // => 5
     */
    function set(object, path, value) {
      if (object == null) {
        return object;
      }
      var pathKey = (path + '');
      path = (object[pathKey] != null || isKey(path, object)) ? [pathKey] : toPath(path);

      var index = -1,
          length = path.length,
          lastIndex = length - 1,
          nested = object;

      while (nested != null && ++index < length) {
        var key = path[index];
        if (isObject(nested)) {
          if (index == lastIndex) {
            nested[key] = value;
          } else if (nested[key] == null) {
            nested[key] = isIndex(path[index + 1]) ? [] : {};
          }
        }
        nested = nested[key];
      }
      return object;
    }

    /**
     * An alternative to `_.reduce`; this method transforms `object` to a new
     * `accumulator` object which is the result of running each of its own enumerable
     * properties through `iteratee`, with each invocation potentially mutating
     * the `accumulator` object. The `iteratee` is bound to `thisArg` and invoked
     * with four arguments: (accumulator, value, key, object). Iteratee functions
     * may exit iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Array|Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The custom accumulator value.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {*} Returns the accumulated value.
     * @example
     *
     * _.transform([2, 3, 4], function(result, n) {
     *   result.push(n *= n);
     *   return n % 2 == 0;
     * });
     * // => [4, 9]
     *
     * _.transform({ 'a': 1, 'b': 2 }, function(result, n, key) {
     *   result[key] = n * 3;
     * });
     * // => { 'a': 3, 'b': 6 }
     */
    function transform(object, iteratee, accumulator, thisArg) {
      var isArr = isArray(object) || isTypedArray(object);
      iteratee = getCallback(iteratee, thisArg, 4);

      if (accumulator == null) {
        if (isArr || isObject(object)) {
          var Ctor = object.constructor;
          if (isArr) {
            accumulator = isArray(object) ? new Ctor : [];
          } else {
            accumulator = baseCreate(isFunction(Ctor) ? Ctor.prototype : undefined);
          }
        } else {
          accumulator = {};
        }
      }
      (isArr ? arrayEach : baseForOwn)(object, function(value, index, object) {
        return iteratee(accumulator, value, index, object);
      });
      return accumulator;
    }

    /**
     * Creates an array of the own enumerable property values of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.values(new Foo);
     * // => [1, 2] (iteration order is not guaranteed)
     *
     * _.values('hi');
     * // => ['h', 'i']
     */
    function values(object) {
      return baseValues(object, keys(object));
    }

    /**
     * Creates an array of the own and inherited enumerable property values
     * of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.valuesIn(new Foo);
     * // => [1, 2, 3] (iteration order is not guaranteed)
     */
    function valuesIn(object) {
      return baseValues(object, keysIn(object));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Checks if `n` is between `start` and up to but not including, `end`. If
     * `end` is not specified it is set to `start` with `start` then set to `0`.
     *
     * @static
     * @memberOf _
     * @category Number
     * @param {number} n The number to check.
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @returns {boolean} Returns `true` if `n` is in the range, else `false`.
     * @example
     *
     * _.inRange(3, 2, 4);
     * // => true
     *
     * _.inRange(4, 8);
     * // => true
     *
     * _.inRange(4, 2);
     * // => false
     *
     * _.inRange(2, 2);
     * // => false
     *
     * _.inRange(1.2, 2);
     * // => true
     *
     * _.inRange(5.2, 4);
     * // => false
     */
    function inRange(value, start, end) {
      start = +start || 0;
      if (end === undefined) {
        end = start;
        start = 0;
      } else {
        end = +end || 0;
      }
      return value >= nativeMin(start, end) && value < nativeMax(start, end);
    }

    /**
     * Produces a random number between `min` and `max` (inclusive). If only one
     * argument is provided a number between `0` and the given number is returned.
     * If `floating` is `true`, or either `min` or `max` are floats, a floating-point
     * number is returned instead of an integer.
     *
     * @static
     * @memberOf _
     * @category Number
     * @param {number} [min=0] The minimum possible value.
     * @param {number} [max=1] The maximum possible value.
     * @param {boolean} [floating] Specify returning a floating-point number.
     * @returns {number} Returns the random number.
     * @example
     *
     * _.random(0, 5);
     * // => an integer between 0 and 5
     *
     * _.random(5);
     * // => also an integer between 0 and 5
     *
     * _.random(5, true);
     * // => a floating-point number between 0 and 5
     *
     * _.random(1.2, 5.2);
     * // => a floating-point number between 1.2 and 5.2
     */
    function random(min, max, floating) {
      if (floating && isIterateeCall(min, max, floating)) {
        max = floating = undefined;
      }
      var noMin = min == null,
          noMax = max == null;

      if (floating == null) {
        if (noMax && typeof min == 'boolean') {
          floating = min;
          min = 1;
        }
        else if (typeof max == 'boolean') {
          floating = max;
          noMax = true;
        }
      }
      if (noMin && noMax) {
        max = 1;
        noMax = false;
      }
      min = +min || 0;
      if (noMax) {
        max = min;
        min = 0;
      } else {
        max = +max || 0;
      }
      if (floating || min % 1 || max % 1) {
        var rand = nativeRandom();
        return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand + '').length - 1)))), max);
      }
      return baseRandom(min, max);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the camel cased string.
     * @example
     *
     * _.camelCase('Foo Bar');
     * // => 'fooBar'
     *
     * _.camelCase('--foo-bar');
     * // => 'fooBar'
     *
     * _.camelCase('__foo_bar__');
     * // => 'fooBar'
     */
    var camelCase = createCompounder(function(result, word, index) {
      word = word.toLowerCase();
      return result + (index ? (word.charAt(0).toUpperCase() + word.slice(1)) : word);
    });

    /**
     * Capitalizes the first character of `string`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to capitalize.
     * @returns {string} Returns the capitalized string.
     * @example
     *
     * _.capitalize('fred');
     * // => 'Fred'
     */
    function capitalize(string) {
      string = baseToString(string);
      return string && (string.charAt(0).toUpperCase() + string.slice(1));
    }

    /**
     * Deburrs `string` by converting [latin-1 supplementary letters](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
     * to basic latin letters and removing [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to deburr.
     * @returns {string} Returns the deburred string.
     * @example
     *
     * _.deburr('déjà vu');
     * // => 'deja vu'
     */
    function deburr(string) {
      string = baseToString(string);
      return string && string.replace(reLatin1, deburrLetter).replace(reComboMark, '');
    }

    /**
     * Checks if `string` ends with the given target string.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to search.
     * @param {string} [target] The string to search for.
     * @param {number} [position=string.length] The position to search from.
     * @returns {boolean} Returns `true` if `string` ends with `target`, else `false`.
     * @example
     *
     * _.endsWith('abc', 'c');
     * // => true
     *
     * _.endsWith('abc', 'b');
     * // => false
     *
     * _.endsWith('abc', 'b', 2);
     * // => true
     */
    function endsWith(string, target, position) {
      string = baseToString(string);
      target = (target + '');

      var length = string.length;
      position = position === undefined
        ? length
        : nativeMin(position < 0 ? 0 : (+position || 0), length);

      position -= target.length;
      return position >= 0 && string.indexOf(target, position) == position;
    }

    /**
     * Converts the characters "&", "<", ">", '"', "'", and "\`", in `string` to
     * their corresponding HTML entities.
     *
     * **Note:** No other characters are escaped. To escape additional characters
     * use a third-party library like [_he_](https://mths.be/he).
     *
     * Though the ">" character is escaped for symmetry, characters like
     * ">" and "/" don't need escaping in HTML and have no special meaning
     * unless they're part of a tag or unquoted attribute value.
     * See [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
     * (under "semi-related fun fact") for more details.
     *
     * Backticks are escaped because in Internet Explorer < 9, they can break out
     * of attribute values or HTML comments. See [#59](https://html5sec.org/#59),
     * [#102](https://html5sec.org/#102), [#108](https://html5sec.org/#108), and
     * [#133](https://html5sec.org/#133) of the [HTML5 Security Cheatsheet](https://html5sec.org/)
     * for more details.
     *
     * When working with HTML you should always [quote attribute values](http://wonko.com/post/html-escaping)
     * to reduce XSS vectors.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escape('fred, barney, & pebbles');
     * // => 'fred, barney, &amp; pebbles'
     */
    function escape(string) {
      // Reset `lastIndex` because in IE < 9 `String#replace` does not.
      string = baseToString(string);
      return (string && reHasUnescapedHtml.test(string))
        ? string.replace(reUnescapedHtml, escapeHtmlChar)
        : string;
    }

    /**
     * Escapes the `RegExp` special characters "\", "/", "^", "$", ".", "|", "?",
     * "*", "+", "(", ")", "[", "]", "{" and "}" in `string`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escapeRegExp('[lodash](https://lodash.com/)');
     * // => '\[lodash\]\(https:\/\/lodash\.com\/\)'
     */
    function escapeRegExp(string) {
      string = baseToString(string);
      return (string && reHasRegExpChars.test(string))
        ? string.replace(reRegExpChars, escapeRegExpChar)
        : (string || '(?:)');
    }

    /**
     * Converts `string` to [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the kebab cased string.
     * @example
     *
     * _.kebabCase('Foo Bar');
     * // => 'foo-bar'
     *
     * _.kebabCase('fooBar');
     * // => 'foo-bar'
     *
     * _.kebabCase('__foo_bar__');
     * // => 'foo-bar'
     */
    var kebabCase = createCompounder(function(result, word, index) {
      return result + (index ? '-' : '') + word.toLowerCase();
    });

    /**
     * Pads `string` on the left and right sides if it's shorter than `length`.
     * Padding characters are truncated if they can't be evenly divided by `length`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.pad('abc', 8);
     * // => '  abc   '
     *
     * _.pad('abc', 8, '_-');
     * // => '_-abc_-_'
     *
     * _.pad('abc', 3);
     * // => 'abc'
     */
    function pad(string, length, chars) {
      string = baseToString(string);
      length = +length;

      var strLength = string.length;
      if (strLength >= length || !nativeIsFinite(length)) {
        return string;
      }
      var mid = (length - strLength) / 2,
          leftLength = nativeFloor(mid),
          rightLength = nativeCeil(mid);

      chars = createPadding('', rightLength, chars);
      return chars.slice(0, leftLength) + string + chars;
    }

    /**
     * Pads `string` on the left side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padLeft('abc', 6);
     * // => '   abc'
     *
     * _.padLeft('abc', 6, '_-');
     * // => '_-_abc'
     *
     * _.padLeft('abc', 3);
     * // => 'abc'
     */
    var padLeft = createPadDir();

    /**
     * Pads `string` on the right side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padRight('abc', 6);
     * // => 'abc   '
     *
     * _.padRight('abc', 6, '_-');
     * // => 'abc_-_'
     *
     * _.padRight('abc', 3);
     * // => 'abc'
     */
    var padRight = createPadDir(true);

    /**
     * Converts `string` to an integer of the specified radix. If `radix` is
     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a hexadecimal,
     * in which case a `radix` of `16` is used.
     *
     * **Note:** This method aligns with the [ES5 implementation](https://es5.github.io/#E)
     * of `parseInt`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} string The string to convert.
     * @param {number} [radix] The radix to interpret `value` by.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.parseInt('08');
     * // => 8
     *
     * _.map(['6', '08', '10'], _.parseInt);
     * // => [6, 8, 10]
     */
    function parseInt(string, radix, guard) {
      // Firefox < 21 and Opera < 15 follow ES3 for `parseInt`.
      // Chrome fails to trim leading <BOM> whitespace characters.
      // See https://code.google.com/p/v8/issues/detail?id=3109 for more details.
      if (guard ? isIterateeCall(string, radix, guard) : radix == null) {
        radix = 0;
      } else if (radix) {
        radix = +radix;
      }
      string = trim(string);
      return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10));
    }

    /**
     * Repeats the given string `n` times.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to repeat.
     * @param {number} [n=0] The number of times to repeat the string.
     * @returns {string} Returns the repeated string.
     * @example
     *
     * _.repeat('*', 3);
     * // => '***'
     *
     * _.repeat('abc', 2);
     * // => 'abcabc'
     *
     * _.repeat('abc', 0);
     * // => ''
     */
    function repeat(string, n) {
      var result = '';
      string = baseToString(string);
      n = +n;
      if (n < 1 || !string || !nativeIsFinite(n)) {
        return result;
      }
      // Leverage the exponentiation by squaring algorithm for a faster repeat.
      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
      do {
        if (n % 2) {
          result += string;
        }
        n = nativeFloor(n / 2);
        string += string;
      } while (n);

      return result;
    }

    /**
     * Converts `string` to [snake case](https://en.wikipedia.org/wiki/Snake_case).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the snake cased string.
     * @example
     *
     * _.snakeCase('Foo Bar');
     * // => 'foo_bar'
     *
     * _.snakeCase('fooBar');
     * // => 'foo_bar'
     *
     * _.snakeCase('--foo-bar');
     * // => 'foo_bar'
     */
    var snakeCase = createCompounder(function(result, word, index) {
      return result + (index ? '_' : '') + word.toLowerCase();
    });

    /**
     * Converts `string` to [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the start cased string.
     * @example
     *
     * _.startCase('--foo-bar');
     * // => 'Foo Bar'
     *
     * _.startCase('fooBar');
     * // => 'Foo Bar'
     *
     * _.startCase('__foo_bar__');
     * // => 'Foo Bar'
     */
    var startCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + (word.charAt(0).toUpperCase() + word.slice(1));
    });

    /**
     * Checks if `string` starts with the given target string.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to search.
     * @param {string} [target] The string to search for.
     * @param {number} [position=0] The position to search from.
     * @returns {boolean} Returns `true` if `string` starts with `target`, else `false`.
     * @example
     *
     * _.startsWith('abc', 'a');
     * // => true
     *
     * _.startsWith('abc', 'b');
     * // => false
     *
     * _.startsWith('abc', 'b', 1);
     * // => true
     */
    function startsWith(string, target, position) {
      string = baseToString(string);
      position = position == null
        ? 0
        : nativeMin(position < 0 ? 0 : (+position || 0), string.length);

      return string.lastIndexOf(target, position) == position;
    }

    /**
     * Creates a compiled template function that can interpolate data properties
     * in "interpolate" delimiters, HTML-escape interpolated data properties in
     * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
     * properties may be accessed as free variables in the template. If a setting
     * object is provided it takes precedence over `_.templateSettings` values.
     *
     * **Note:** In the development build `_.template` utilizes
     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
     * for easier debugging.
     *
     * For more information on precompiling templates see
     * [lodash's custom builds documentation](https://lodash.com/custom-builds).
     *
     * For more information on Chrome extension sandboxes see
     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The template string.
     * @param {Object} [options] The options object.
     * @param {RegExp} [options.escape] The HTML "escape" delimiter.
     * @param {RegExp} [options.evaluate] The "evaluate" delimiter.
     * @param {Object} [options.imports] An object to import into the template as free variables.
     * @param {RegExp} [options.interpolate] The "interpolate" delimiter.
     * @param {string} [options.sourceURL] The sourceURL of the template's compiled source.
     * @param {string} [options.variable] The data object variable name.
     * @param- {Object} [otherOptions] Enables the legacy `options` param signature.
     * @returns {Function} Returns the compiled template function.
     * @example
     *
     * // using the "interpolate" delimiter to create a compiled template
     * var compiled = _.template('hello <%= user %>!');
     * compiled({ 'user': 'fred' });
     * // => 'hello fred!'
     *
     * // using the HTML "escape" delimiter to escape data property values
     * var compiled = _.template('<b><%- value %></b>');
     * compiled({ 'value': '<script>' });
     * // => '<b>&lt;script&gt;</b>'
     *
     * // using the "evaluate" delimiter to execute JavaScript and generate HTML
     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // using the internal `print` function in "evaluate" delimiters
     * var compiled = _.template('<% print("hello " + user); %>!');
     * compiled({ 'user': 'barney' });
     * // => 'hello barney!'
     *
     * // using the ES delimiter as an alternative to the default "interpolate" delimiter
     * var compiled = _.template('hello ${ user }!');
     * compiled({ 'user': 'pebbles' });
     * // => 'hello pebbles!'
     *
     * // using custom template delimiters
     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
     * var compiled = _.template('hello {{ user }}!');
     * compiled({ 'user': 'mustache' });
     * // => 'hello mustache!'
     *
     * // using backslashes to treat delimiters as plain text
     * var compiled = _.template('<%= "\\<%- value %\\>" %>');
     * compiled({ 'value': 'ignored' });
     * // => '<%- value %>'
     *
     * // using the `imports` option to import `jQuery` as `jq`
     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // using the `sourceURL` option to specify a custom sourceURL for the template
     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
     * compiled(data);
     * // => find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector
     *
     * // using the `variable` option to ensure a with-statement isn't used in the compiled template
     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
     * compiled.source;
     * // => function(data) {
     * //   var __t, __p = '';
     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
     * //   return __p;
     * // }
     *
     * // using the `source` property to inline compiled templates for meaningful
     * // line numbers in error messages and a stack trace
     * fs.writeFileSync(path.join(cwd, 'jst.js'), '\
     *   var JST = {\
     *     "main": ' + _.template(mainText).source + '\
     *   };\
     * ');
     */
    function template(string, options, otherOptions) {
      // Based on John Resig's `tmpl` implementation (http://ejohn.org/blog/javascript-micro-templating/)
      // and Laura Doktorova's doT.js (https://github.com/olado/doT).
      var settings = lodash.templateSettings;

      if (otherOptions && isIterateeCall(string, options, otherOptions)) {
        options = otherOptions = undefined;
      }
      string = baseToString(string);
      options = assignWith(baseAssign({}, otherOptions || options), settings, assignOwnDefaults);

      var imports = assignWith(baseAssign({}, options.imports), settings.imports, assignOwnDefaults),
          importsKeys = keys(imports),
          importsValues = baseValues(imports, importsKeys);

      var isEscaping,
          isEvaluating,
          index = 0,
          interpolate = options.interpolate || reNoMatch,
          source = "__p += '";

      // Compile the regexp to match each delimiter.
      var reDelimiters = RegExp(
        (options.escape || reNoMatch).source + '|' +
        interpolate.source + '|' +
        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
        (options.evaluate || reNoMatch).source + '|$'
      , 'g');

      // Use a sourceURL for easier debugging.
      var sourceURL = '//# sourceURL=' +
        ('sourceURL' in options
          ? options.sourceURL
          : ('lodash.templateSources[' + (++templateCounter) + ']')
        ) + '\n';

      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
        interpolateValue || (interpolateValue = esTemplateValue);

        // Escape characters that can't be included in string literals.
        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);

        // Replace delimiters with snippets.
        if (escapeValue) {
          isEscaping = true;
          source += "' +\n__e(" + escapeValue + ") +\n'";
        }
        if (evaluateValue) {
          isEvaluating = true;
          source += "';\n" + evaluateValue + ";\n__p += '";
        }
        if (interpolateValue) {
          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
        }
        index = offset + match.length;

        // The JS engine embedded in Adobe products requires returning the `match`
        // string in order to produce the correct `offset` value.
        return match;
      });

      source += "';\n";

      // If `variable` is not specified wrap a with-statement around the generated
      // code to add the data object to the top of the scope chain.
      var variable = options.variable;
      if (!variable) {
        source = 'with (obj) {\n' + source + '\n}\n';
      }
      // Cleanup code by stripping empty strings.
      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
        .replace(reEmptyStringMiddle, '$1')
        .replace(reEmptyStringTrailing, '$1;');

      // Frame code as the function body.
      source = 'function(' + (variable || 'obj') + ') {\n' +
        (variable
          ? ''
          : 'obj || (obj = {});\n'
        ) +
        "var __t, __p = ''" +
        (isEscaping
           ? ', __e = _.escape'
           : ''
        ) +
        (isEvaluating
          ? ', __j = Array.prototype.join;\n' +
            "function print() { __p += __j.call(arguments, '') }\n"
          : ';\n'
        ) +
        source +
        'return __p\n}';

      var result = attempt(function() {
        return Function(importsKeys, sourceURL + 'return ' + source).apply(undefined, importsValues);
      });

      // Provide the compiled function's source by its `toString` method or
      // the `source` property as a convenience for inlining compiled templates.
      result.source = source;
      if (isError(result)) {
        throw result;
      }
      return result;
    }

    /**
     * Removes leading and trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trim('  abc  ');
     * // => 'abc'
     *
     * _.trim('-_-abc-_-', '_-');
     * // => 'abc'
     *
     * _.map(['  foo  ', '  bar  '], _.trim);
     * // => ['foo', 'bar']
     */
    function trim(string, chars, guard) {
      var value = string;
      string = baseToString(string);
      if (!string) {
        return string;
      }
      if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
        return string.slice(trimmedLeftIndex(string), trimmedRightIndex(string) + 1);
      }
      chars = (chars + '');
      return string.slice(charsLeftIndex(string, chars), charsRightIndex(string, chars) + 1);
    }

    /**
     * Removes leading whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimLeft('  abc  ');
     * // => 'abc  '
     *
     * _.trimLeft('-_-abc-_-', '_-');
     * // => 'abc-_-'
     */
    function trimLeft(string, chars, guard) {
      var value = string;
      string = baseToString(string);
      if (!string) {
        return string;
      }
      if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
        return string.slice(trimmedLeftIndex(string));
      }
      return string.slice(charsLeftIndex(string, (chars + '')));
    }

    /**
     * Removes trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimRight('  abc  ');
     * // => '  abc'
     *
     * _.trimRight('-_-abc-_-', '_-');
     * // => '-_-abc'
     */
    function trimRight(string, chars, guard) {
      var value = string;
      string = baseToString(string);
      if (!string) {
        return string;
      }
      if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
        return string.slice(0, trimmedRightIndex(string) + 1);
      }
      return string.slice(0, charsRightIndex(string, (chars + '')) + 1);
    }

    /**
     * Truncates `string` if it's longer than the given maximum string length.
     * The last characters of the truncated string are replaced with the omission
     * string which defaults to "...".
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to truncate.
     * @param {Object|number} [options] The options object or maximum string length.
     * @param {number} [options.length=30] The maximum string length.
     * @param {string} [options.omission='...'] The string to indicate text is omitted.
     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {string} Returns the truncated string.
     * @example
     *
     * _.trunc('hi-diddly-ho there, neighborino');
     * // => 'hi-diddly-ho there, neighbo...'
     *
     * _.trunc('hi-diddly-ho there, neighborino', 24);
     * // => 'hi-diddly-ho there, n...'
     *
     * _.trunc('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': ' '
     * });
     * // => 'hi-diddly-ho there,...'
     *
     * _.trunc('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': /,? +/
     * });
     * // => 'hi-diddly-ho there...'
     *
     * _.trunc('hi-diddly-ho there, neighborino', {
     *   'omission': ' [...]'
     * });
     * // => 'hi-diddly-ho there, neig [...]'
     */
    function trunc(string, options, guard) {
      if (guard && isIterateeCall(string, options, guard)) {
        options = undefined;
      }
      var length = DEFAULT_TRUNC_LENGTH,
          omission = DEFAULT_TRUNC_OMISSION;

      if (options != null) {
        if (isObject(options)) {
          var separator = 'separator' in options ? options.separator : separator;
          length = 'length' in options ? (+options.length || 0) : length;
          omission = 'omission' in options ? baseToString(options.omission) : omission;
        } else {
          length = +options || 0;
        }
      }
      string = baseToString(string);
      if (length >= string.length) {
        return string;
      }
      var end = length - omission.length;
      if (end < 1) {
        return omission;
      }
      var result = string.slice(0, end);
      if (separator == null) {
        return result + omission;
      }
      if (isRegExp(separator)) {
        if (string.slice(end).search(separator)) {
          var match,
              newEnd,
              substring = string.slice(0, end);

          if (!separator.global) {
            separator = RegExp(separator.source, (reFlags.exec(separator) || '') + 'g');
          }
          separator.lastIndex = 0;
          while ((match = separator.exec(substring))) {
            newEnd = match.index;
          }
          result = result.slice(0, newEnd == null ? end : newEnd);
        }
      } else if (string.indexOf(separator, end) != end) {
        var index = result.lastIndexOf(separator);
        if (index > -1) {
          result = result.slice(0, index);
        }
      }
      return result + omission;
    }

    /**
     * The inverse of `_.escape`; this method converts the HTML entities
     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, `&#39;`, and `&#96;` in `string` to their
     * corresponding characters.
     *
     * **Note:** No other HTML entities are unescaped. To unescape additional HTML
     * entities use a third-party library like [_he_](https://mths.be/he).
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to unescape.
     * @returns {string} Returns the unescaped string.
     * @example
     *
     * _.unescape('fred, barney, &amp; pebbles');
     * // => 'fred, barney, & pebbles'
     */
    function unescape(string) {
      string = baseToString(string);
      return (string && reHasEscapedHtml.test(string))
        ? string.replace(reEscapedHtml, unescapeHtmlChar)
        : string;
    }

    /**
     * Splits `string` into an array of its words.
     *
     * @static
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {RegExp|string} [pattern] The pattern to match words.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Array} Returns the words of `string`.
     * @example
     *
     * _.words('fred, barney, & pebbles');
     * // => ['fred', 'barney', 'pebbles']
     *
     * _.words('fred, barney, & pebbles', /[^, ]+/g);
     * // => ['fred', 'barney', '&', 'pebbles']
     */
    function words(string, pattern, guard) {
      if (guard && isIterateeCall(string, pattern, guard)) {
        pattern = undefined;
      }
      string = baseToString(string);
      return string.match(pattern || reWords) || [];
    }

    /*------------------------------------------------------------------------*/

    /**
     * Attempts to invoke `func`, returning either the result or the caught error
     * object. Any additional arguments are provided to `func` when it is invoked.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Function} func The function to attempt.
     * @returns {*} Returns the `func` result or error object.
     * @example
     *
     * // avoid throwing errors for invalid selectors
     * var elements = _.attempt(function(selector) {
     *   return document.querySelectorAll(selector);
     * }, '>_>');
     *
     * if (_.isError(elements)) {
     *   elements = [];
     * }
     */
    var attempt = restParam(function(func, args) {
      try {
        return func.apply(undefined, args);
      } catch(e) {
        return isError(e) ? e : new Error(e);
      }
    });

    /**
     * Creates a function that invokes `func` with the `this` binding of `thisArg`
     * and arguments of the created function. If `func` is a property name the
     * created callback returns the property value for a given element. If `func`
     * is an object the created callback returns `true` for elements that contain
     * the equivalent object properties, otherwise it returns `false`.
     *
     * @static
     * @memberOf _
     * @alias iteratee
     * @category Utility
     * @param {*} [func=_.identity] The value to convert to a callback.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
     * @returns {Function} Returns the callback.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * // wrap to create custom callback shorthands
     * _.callback = _.wrap(_.callback, function(callback, func, thisArg) {
     *   var match = /^(.+?)__([gl]t)(.+)$/.exec(func);
     *   if (!match) {
     *     return callback(func, thisArg);
     *   }
     *   return function(object) {
     *     return match[2] == 'gt'
     *       ? object[match[1]] > match[3]
     *       : object[match[1]] < match[3];
     *   };
     * });
     *
     * _.filter(users, 'age__gt36');
     * // => [{ 'user': 'fred', 'age': 40 }]
     */
    function callback(func, thisArg, guard) {
      if (guard && isIterateeCall(func, thisArg, guard)) {
        thisArg = undefined;
      }
      return isObjectLike(func)
        ? matches(func)
        : baseCallback(func, thisArg);
    }

    /**
     * Creates a function that returns `value`.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {*} value The value to return from the new function.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var object = { 'user': 'fred' };
     * var getter = _.constant(object);
     *
     * getter() === object;
     * // => true
     */
    function constant(value) {
      return function() {
        return value;
      };
    }

    /**
     * This method returns the first argument provided to it.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {*} value Any value.
     * @returns {*} Returns `value`.
     * @example
     *
     * var object = { 'user': 'fred' };
     *
     * _.identity(object) === object;
     * // => true
     */
    function identity(value) {
      return value;
    }

    /**
     * Creates a function that performs a deep comparison between a given object
     * and `source`, returning `true` if the given object has equivalent property
     * values, else `false`.
     *
     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
     * numbers, `Object` objects, regexes, and strings. Objects are compared by
     * their own, not inherited, enumerable properties. For comparing a single
     * own or inherited property value see `_.matchesProperty`.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * _.filter(users, _.matches({ 'age': 40, 'active': false }));
     * // => [{ 'user': 'fred', 'age': 40, 'active': false }]
     */
    function matches(source) {
      return baseMatches(baseClone(source, true));
    }

    /**
     * Creates a function that compares the property value of `path` on a given
     * object to `value`.
     *
     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
     * numbers, `Object` objects, regexes, and strings. Objects are compared by
     * their own, not inherited, enumerable properties.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Array|string} path The path of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * _.find(users, _.matchesProperty('user', 'fred'));
     * // => { 'user': 'fred' }
     */
    function matchesProperty(path, srcValue) {
      return baseMatchesProperty(path, baseClone(srcValue, true));
    }

    /**
     * Creates a function that invokes the method at `path` on a given object.
     * Any additional arguments are provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Array|string} path The path of the method to invoke.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': { 'c': _.constant(2) } } },
     *   { 'a': { 'b': { 'c': _.constant(1) } } }
     * ];
     *
     * _.map(objects, _.method('a.b.c'));
     * // => [2, 1]
     *
     * _.invoke(_.sortBy(objects, _.method(['a', 'b', 'c'])), 'a.b.c');
     * // => [1, 2]
     */
    var method = restParam(function(path, args) {
      return function(object) {
        return invokePath(object, path, args);
      };
    });

    /**
     * The opposite of `_.method`; this method creates a function that invokes
     * the method at a given path on `object`. Any additional arguments are
     * provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Object} object The object to query.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var array = _.times(3, _.constant),
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.methodOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
     * // => [2, 0]
     */
    var methodOf = restParam(function(object, args) {
      return function(path) {
        return invokePath(object, path, args);
      };
    });

    /**
     * Adds all own enumerable function properties of a source object to the
     * destination object. If `object` is a function then methods are added to
     * its prototype as well.
     *
     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
     * avoid conflicts caused by modifying the original.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Function|Object} [object=lodash] The destination object.
     * @param {Object} source The object of functions to add.
     * @param {Object} [options] The options object.
     * @param {boolean} [options.chain=true] Specify whether the functions added
     *  are chainable.
     * @returns {Function|Object} Returns `object`.
     * @example
     *
     * function vowels(string) {
     *   return _.filter(string, function(v) {
     *     return /[aeiou]/i.test(v);
     *   });
     * }
     *
     * _.mixin({ 'vowels': vowels });
     * _.vowels('fred');
     * // => ['e']
     *
     * _('fred').vowels().value();
     * // => ['e']
     *
     * _.mixin({ 'vowels': vowels }, { 'chain': false });
     * _('fred').vowels();
     * // => ['e']
     */
    function mixin(object, source, options) {
      if (options == null) {
        var isObj = isObject(source),
            props = isObj ? keys(source) : undefined,
            methodNames = (props && props.length) ? baseFunctions(source, props) : undefined;

        if (!(methodNames ? methodNames.length : isObj)) {
          methodNames = false;
          options = source;
          source = object;
          object = this;
        }
      }
      if (!methodNames) {
        methodNames = baseFunctions(source, keys(source));
      }
      var chain = true,
          index = -1,
          isFunc = isFunction(object),
          length = methodNames.length;

      if (options === false) {
        chain = false;
      } else if (isObject(options) && 'chain' in options) {
        chain = options.chain;
      }
      while (++index < length) {
        var methodName = methodNames[index],
            func = source[methodName];

        object[methodName] = func;
        if (isFunc) {
          object.prototype[methodName] = (function(func) {
            return function() {
              var chainAll = this.__chain__;
              if (chain || chainAll) {
                var result = object(this.__wrapped__),
                    actions = result.__actions__ = arrayCopy(this.__actions__);

                actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
                result.__chain__ = chainAll;
                return result;
              }
              return func.apply(object, arrayPush([this.value()], arguments));
            };
          }(func));
        }
      }
      return object;
    }

    /**
     * Reverts the `_` variable to its previous value and returns a reference to
     * the `lodash` function.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @returns {Function} Returns the `lodash` function.
     * @example
     *
     * var lodash = _.noConflict();
     */
    function noConflict() {
      root._ = oldDash;
      return this;
    }

    /**
     * A no-operation function that returns `undefined` regardless of the
     * arguments it receives.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @example
     *
     * var object = { 'user': 'fred' };
     *
     * _.noop(object) === undefined;
     * // => true
     */
    function noop() {
      // No operation performed.
    }

    /**
     * Creates a function that returns the property value at `path` on a
     * given object.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': { 'c': 2 } } },
     *   { 'a': { 'b': { 'c': 1 } } }
     * ];
     *
     * _.map(objects, _.property('a.b.c'));
     * // => [2, 1]
     *
     * _.pluck(_.sortBy(objects, _.property(['a', 'b', 'c'])), 'a.b.c');
     * // => [1, 2]
     */
    function property(path) {
      return isKey(path) ? baseProperty(path) : basePropertyDeep(path);
    }

    /**
     * The opposite of `_.property`; this method creates a function that returns
     * the property value at a given path on `object`.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {Object} object The object to query.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var array = [0, 1, 2],
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
     * // => [2, 0]
     */
    function propertyOf(object) {
      return function(path) {
        return baseGet(object, toPath(path), path + '');
      };
    }

    /**
     * Creates an array of numbers (positive and/or negative) progressing from
     * `start` up to, but not including, `end`. If `end` is not specified it is
     * set to `start` with `start` then set to `0`. If `end` is less than `start`
     * a zero-length range is created unless a negative `step` is specified.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @param {number} [step=1] The value to increment or decrement by.
     * @returns {Array} Returns the new array of numbers.
     * @example
     *
     * _.range(4);
     * // => [0, 1, 2, 3]
     *
     * _.range(1, 5);
     * // => [1, 2, 3, 4]
     *
     * _.range(0, 20, 5);
     * // => [0, 5, 10, 15]
     *
     * _.range(0, -4, -1);
     * // => [0, -1, -2, -3]
     *
     * _.range(1, 4, 0);
     * // => [1, 1, 1]
     *
     * _.range(0);
     * // => []
     */
    function range(start, end, step) {
      if (step && isIterateeCall(start, end, step)) {
        end = step = undefined;
      }
      start = +start || 0;
      step = step == null ? 1 : (+step || 0);

      if (end == null) {
        end = start;
        start = 0;
      } else {
        end = +end || 0;
      }
      // Use `Array(length)` so engines like Chakra and V8 avoid slower modes.
      // See https://youtu.be/XAqIpGU8ZZk#t=17m25s for more details.
      var index = -1,
          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
          result = Array(length);

      while (++index < length) {
        result[index] = start;
        start += step;
      }
      return result;
    }

    /**
     * Invokes the iteratee function `n` times, returning an array of the results
     * of each invocation. The `iteratee` is bound to `thisArg` and invoked with
     * one argument; (index).
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {number} n The number of times to invoke `iteratee`.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * var diceRolls = _.times(3, _.partial(_.random, 1, 6, false));
     * // => [3, 6, 4]
     *
     * _.times(3, function(n) {
     *   mage.castSpell(n);
     * });
     * // => invokes `mage.castSpell(n)` three times with `n` of `0`, `1`, and `2`
     *
     * _.times(3, function(n) {
     *   this.cast(n);
     * }, mage);
     * // => also invokes `mage.castSpell(n)` three times
     */
    function times(n, iteratee, thisArg) {
      n = nativeFloor(n);

      // Exit early to avoid a JSC JIT bug in Safari 8
      // where `Array(0)` is treated as `Array(1)`.
      if (n < 1 || !nativeIsFinite(n)) {
        return [];
      }
      var index = -1,
          result = Array(nativeMin(n, MAX_ARRAY_LENGTH));

      iteratee = bindCallback(iteratee, thisArg, 1);
      while (++index < n) {
        if (index < MAX_ARRAY_LENGTH) {
          result[index] = iteratee(index);
        } else {
          iteratee(index);
        }
      }
      return result;
    }

    /**
     * Generates a unique ID. If `prefix` is provided the ID is appended to it.
     *
     * @static
     * @memberOf _
     * @category Utility
     * @param {string} [prefix] The value to prefix the ID with.
     * @returns {string} Returns the unique ID.
     * @example
     *
     * _.uniqueId('contact_');
     * // => 'contact_104'
     *
     * _.uniqueId();
     * // => '105'
     */
    function uniqueId(prefix) {
      var id = ++idCounter;
      return baseToString(prefix) + id;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Adds two numbers.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {number} augend The first number to add.
     * @param {number} addend The second number to add.
     * @returns {number} Returns the sum.
     * @example
     *
     * _.add(6, 4);
     * // => 10
     */
    function add(augend, addend) {
      return (+augend || 0) + (+addend || 0);
    }

    /**
     * Calculates `n` rounded up to `precision`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {number} n The number to round up.
     * @param {number} [precision=0] The precision to round up to.
     * @returns {number} Returns the rounded up number.
     * @example
     *
     * _.ceil(4.006);
     * // => 5
     *
     * _.ceil(6.004, 2);
     * // => 6.01
     *
     * _.ceil(6040, -2);
     * // => 6100
     */
    var ceil = createRound('ceil');

    /**
     * Calculates `n` rounded down to `precision`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {number} n The number to round down.
     * @param {number} [precision=0] The precision to round down to.
     * @returns {number} Returns the rounded down number.
     * @example
     *
     * _.floor(4.006);
     * // => 4
     *
     * _.floor(0.046, 2);
     * // => 0.04
     *
     * _.floor(4060, -2);
     * // => 4000
     */
    var floor = createRound('floor');

    /**
     * Gets the maximum value of `collection`. If `collection` is empty or falsey
     * `-Infinity` is returned. If an iteratee function is provided it is invoked
     * for each value in `collection` to generate the criterion by which the value
     * is ranked. The `iteratee` is bound to `thisArg` and invoked with three
     * arguments: (value, index, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {*} Returns the maximum value.
     * @example
     *
     * _.max([4, 2, 8, 6]);
     * // => 8
     *
     * _.max([]);
     * // => -Infinity
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * _.max(users, function(chr) {
     *   return chr.age;
     * });
     * // => { 'user': 'fred', 'age': 40 }
     *
     * // using the `_.property` callback shorthand
     * _.max(users, 'age');
     * // => { 'user': 'fred', 'age': 40 }
     */
    var max = createExtremum(gt, NEGATIVE_INFINITY);

    /**
     * Gets the minimum value of `collection`. If `collection` is empty or falsey
     * `Infinity` is returned. If an iteratee function is provided it is invoked
     * for each value in `collection` to generate the criterion by which the value
     * is ranked. The `iteratee` is bound to `thisArg` and invoked with three
     * arguments: (value, index, collection).
     *
     * If a property name is provided for `iteratee` the created `_.property`
     * style callback returns the property value of the given element.
     *
     * If a value is also provided for `thisArg` the created `_.matchesProperty`
     * style callback returns `true` for elements that have a matching property
     * value, else `false`.
     *
     * If an object is provided for `iteratee` the created `_.matches` style
     * callback returns `true` for elements that have the properties of the given
     * object, else `false`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {*} Returns the minimum value.
     * @example
     *
     * _.min([4, 2, 8, 6]);
     * // => 2
     *
     * _.min([]);
     * // => Infinity
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * _.min(users, function(chr) {
     *   return chr.age;
     * });
     * // => { 'user': 'barney', 'age': 36 }
     *
     * // using the `_.property` callback shorthand
     * _.min(users, 'age');
     * // => { 'user': 'barney', 'age': 36 }
     */
    var min = createExtremum(lt, POSITIVE_INFINITY);

    /**
     * Calculates `n` rounded to `precision`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {number} n The number to round.
     * @param {number} [precision=0] The precision to round to.
     * @returns {number} Returns the rounded number.
     * @example
     *
     * _.round(4.006);
     * // => 4
     *
     * _.round(4.006, 2);
     * // => 4.01
     *
     * _.round(4060, -2);
     * // => 4100
     */
    var round = createRound('round');

    /**
     * Gets the sum of the values in `collection`.
     *
     * @static
     * @memberOf _
     * @category Math
     * @param {Array|Object|string} collection The collection to iterate over.
     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
     * @param {*} [thisArg] The `this` binding of `iteratee`.
     * @returns {number} Returns the sum.
     * @example
     *
     * _.sum([4, 6]);
     * // => 10
     *
     * _.sum({ 'a': 4, 'b': 6 });
     * // => 10
     *
     * var objects = [
     *   { 'n': 4 },
     *   { 'n': 6 }
     * ];
     *
     * _.sum(objects, function(object) {
     *   return object.n;
     * });
     * // => 10
     *
     * // using the `_.property` callback shorthand
     * _.sum(objects, 'n');
     * // => 10
     */
    function sum(collection, iteratee, thisArg) {
      if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
        iteratee = undefined;
      }
      iteratee = getCallback(iteratee, thisArg, 3);
      return iteratee.length == 1
        ? arraySum(isArray(collection) ? collection : toIterable(collection), iteratee)
        : baseSum(collection, iteratee);
    }

    /*------------------------------------------------------------------------*/

    // Ensure wrappers are instances of `baseLodash`.
    lodash.prototype = baseLodash.prototype;

    LodashWrapper.prototype = baseCreate(baseLodash.prototype);
    LodashWrapper.prototype.constructor = LodashWrapper;

    LazyWrapper.prototype = baseCreate(baseLodash.prototype);
    LazyWrapper.prototype.constructor = LazyWrapper;

    // Add functions to the `Map` cache.
    MapCache.prototype['delete'] = mapDelete;
    MapCache.prototype.get = mapGet;
    MapCache.prototype.has = mapHas;
    MapCache.prototype.set = mapSet;

    // Add functions to the `Set` cache.
    SetCache.prototype.push = cachePush;

    // Assign cache to `_.memoize`.
    memoize.Cache = MapCache;

    // Add functions that return wrapped values when chaining.
    lodash.after = after;
    lodash.ary = ary;
    lodash.assign = assign;
    lodash.at = at;
    lodash.before = before;
    lodash.bind = bind;
    lodash.bindAll = bindAll;
    lodash.bindKey = bindKey;
    lodash.callback = callback;
    lodash.chain = chain;
    lodash.chunk = chunk;
    lodash.compact = compact;
    lodash.constant = constant;
    lodash.countBy = countBy;
    lodash.create = create;
    lodash.curry = curry;
    lodash.curryRight = curryRight;
    lodash.debounce = debounce;
    lodash.defaults = defaults;
    lodash.defaultsDeep = defaultsDeep;
    lodash.defer = defer;
    lodash.delay = delay;
    lodash.difference = difference;
    lodash.drop = drop;
    lodash.dropRight = dropRight;
    lodash.dropRightWhile = dropRightWhile;
    lodash.dropWhile = dropWhile;
    lodash.fill = fill;
    lodash.filter = filter;
    lodash.flatten = flatten;
    lodash.flattenDeep = flattenDeep;
    lodash.flow = flow;
    lodash.flowRight = flowRight;
    lodash.forEach = forEach;
    lodash.forEachRight = forEachRight;
    lodash.forIn = forIn;
    lodash.forInRight = forInRight;
    lodash.forOwn = forOwn;
    lodash.forOwnRight = forOwnRight;
    lodash.functions = functions;
    lodash.groupBy = groupBy;
    lodash.indexBy = indexBy;
    lodash.initial = initial;
    lodash.intersection = intersection;
    lodash.invert = invert;
    lodash.invoke = invoke;
    lodash.keys = keys;
    lodash.keysIn = keysIn;
    lodash.map = map;
    lodash.mapKeys = mapKeys;
    lodash.mapValues = mapValues;
    lodash.matches = matches;
    lodash.matchesProperty = matchesProperty;
    lodash.memoize = memoize;
    lodash.merge = merge;
    lodash.method = method;
    lodash.methodOf = methodOf;
    lodash.mixin = mixin;
    lodash.modArgs = modArgs;
    lodash.negate = negate;
    lodash.omit = omit;
    lodash.once = once;
    lodash.pairs = pairs;
    lodash.partial = partial;
    lodash.partialRight = partialRight;
    lodash.partition = partition;
    lodash.pick = pick;
    lodash.pluck = pluck;
    lodash.property = property;
    lodash.propertyOf = propertyOf;
    lodash.pull = pull;
    lodash.pullAt = pullAt;
    lodash.range = range;
    lodash.rearg = rearg;
    lodash.reject = reject;
    lodash.remove = remove;
    lodash.rest = rest;
    lodash.restParam = restParam;
    lodash.set = set;
    lodash.shuffle = shuffle;
    lodash.slice = slice;
    lodash.sortBy = sortBy;
    lodash.sortByAll = sortByAll;
    lodash.sortByOrder = sortByOrder;
    lodash.spread = spread;
    lodash.take = take;
    lodash.takeRight = takeRight;
    lodash.takeRightWhile = takeRightWhile;
    lodash.takeWhile = takeWhile;
    lodash.tap = tap;
    lodash.throttle = throttle;
    lodash.thru = thru;
    lodash.times = times;
    lodash.toArray = toArray;
    lodash.toPlainObject = toPlainObject;
    lodash.transform = transform;
    lodash.union = union;
    lodash.uniq = uniq;
    lodash.unzip = unzip;
    lodash.unzipWith = unzipWith;
    lodash.values = values;
    lodash.valuesIn = valuesIn;
    lodash.where = where;
    lodash.without = without;
    lodash.wrap = wrap;
    lodash.xor = xor;
    lodash.zip = zip;
    lodash.zipObject = zipObject;
    lodash.zipWith = zipWith;

    // Add aliases.
    lodash.backflow = flowRight;
    lodash.collect = map;
    lodash.compose = flowRight;
    lodash.each = forEach;
    lodash.eachRight = forEachRight;
    lodash.extend = assign;
    lodash.iteratee = callback;
    lodash.methods = functions;
    lodash.object = zipObject;
    lodash.select = filter;
    lodash.tail = rest;
    lodash.unique = uniq;

    // Add functions to `lodash.prototype`.
    mixin(lodash, lodash);

    /*------------------------------------------------------------------------*/

    // Add functions that return unwrapped values when chaining.
    lodash.add = add;
    lodash.attempt = attempt;
    lodash.camelCase = camelCase;
    lodash.capitalize = capitalize;
    lodash.ceil = ceil;
    lodash.clone = clone;
    lodash.cloneDeep = cloneDeep;
    lodash.deburr = deburr;
    lodash.endsWith = endsWith;
    lodash.escape = escape;
    lodash.escapeRegExp = escapeRegExp;
    lodash.every = every;
    lodash.find = find;
    lodash.findIndex = findIndex;
    lodash.findKey = findKey;
    lodash.findLast = findLast;
    lodash.findLastIndex = findLastIndex;
    lodash.findLastKey = findLastKey;
    lodash.findWhere = findWhere;
    lodash.first = first;
    lodash.floor = floor;
    lodash.get = get;
    lodash.gt = gt;
    lodash.gte = gte;
    lodash.has = has;
    lodash.identity = identity;
    lodash.includes = includes;
    lodash.indexOf = indexOf;
    lodash.inRange = inRange;
    lodash.isArguments = isArguments;
    lodash.isArray = isArray;
    lodash.isBoolean = isBoolean;
    lodash.isDate = isDate;
    lodash.isElement = isElement;
    lodash.isEmpty = isEmpty;
    lodash.isEqual = isEqual;
    lodash.isError = isError;
    lodash.isFinite = isFinite;
    lodash.isFunction = isFunction;
    lodash.isMatch = isMatch;
    lodash.isNaN = isNaN;
    lodash.isNative = isNative;
    lodash.isNull = isNull;
    lodash.isNumber = isNumber;
    lodash.isObject = isObject;
    lodash.isPlainObject = isPlainObject;
    lodash.isRegExp = isRegExp;
    lodash.isString = isString;
    lodash.isTypedArray = isTypedArray;
    lodash.isUndefined = isUndefined;
    lodash.kebabCase = kebabCase;
    lodash.last = last;
    lodash.lastIndexOf = lastIndexOf;
    lodash.lt = lt;
    lodash.lte = lte;
    lodash.max = max;
    lodash.min = min;
    lodash.noConflict = noConflict;
    lodash.noop = noop;
    lodash.now = now;
    lodash.pad = pad;
    lodash.padLeft = padLeft;
    lodash.padRight = padRight;
    lodash.parseInt = parseInt;
    lodash.random = random;
    lodash.reduce = reduce;
    lodash.reduceRight = reduceRight;
    lodash.repeat = repeat;
    lodash.result = result;
    lodash.round = round;
    lodash.runInContext = runInContext;
    lodash.size = size;
    lodash.snakeCase = snakeCase;
    lodash.some = some;
    lodash.sortedIndex = sortedIndex;
    lodash.sortedLastIndex = sortedLastIndex;
    lodash.startCase = startCase;
    lodash.startsWith = startsWith;
    lodash.sum = sum;
    lodash.template = template;
    lodash.trim = trim;
    lodash.trimLeft = trimLeft;
    lodash.trimRight = trimRight;
    lodash.trunc = trunc;
    lodash.unescape = unescape;
    lodash.uniqueId = uniqueId;
    lodash.words = words;

    // Add aliases.
    lodash.all = every;
    lodash.any = some;
    lodash.contains = includes;
    lodash.eq = isEqual;
    lodash.detect = find;
    lodash.foldl = reduce;
    lodash.foldr = reduceRight;
    lodash.head = first;
    lodash.include = includes;
    lodash.inject = reduce;

    mixin(lodash, (function() {
      var source = {};
      baseForOwn(lodash, function(func, methodName) {
        if (!lodash.prototype[methodName]) {
          source[methodName] = func;
        }
      });
      return source;
    }()), false);

    /*------------------------------------------------------------------------*/

    // Add functions capable of returning wrapped and unwrapped values when chaining.
    lodash.sample = sample;

    lodash.prototype.sample = function(n) {
      if (!this.__chain__ && n == null) {
        return sample(this.value());
      }
      return this.thru(function(value) {
        return sample(value, n);
      });
    };

    /*------------------------------------------------------------------------*/

    /**
     * The semantic version number.
     *
     * @static
     * @memberOf _
     * @type string
     */
    lodash.VERSION = VERSION;

    // Assign default placeholders.
    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
      lodash[methodName].placeholder = lodash;
    });

    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
    arrayEach(['drop', 'take'], function(methodName, index) {
      LazyWrapper.prototype[methodName] = function(n) {
        var filtered = this.__filtered__;
        if (filtered && !index) {
          return new LazyWrapper(this);
        }
        n = n == null ? 1 : nativeMax(nativeFloor(n) || 0, 0);

        var result = this.clone();
        if (filtered) {
          result.__takeCount__ = nativeMin(result.__takeCount__, n);
        } else {
          result.__views__.push({ 'size': n, 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') });
        }
        return result;
      };

      LazyWrapper.prototype[methodName + 'Right'] = function(n) {
        return this.reverse()[methodName](n).reverse();
      };
    });

    // Add `LazyWrapper` methods that accept an `iteratee` value.
    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
      var type = index + 1,
          isFilter = type != LAZY_MAP_FLAG;

      LazyWrapper.prototype[methodName] = function(iteratee, thisArg) {
        var result = this.clone();
        result.__iteratees__.push({ 'iteratee': getCallback(iteratee, thisArg, 1), 'type': type });
        result.__filtered__ = result.__filtered__ || isFilter;
        return result;
      };
    });

    // Add `LazyWrapper` methods for `_.first` and `_.last`.
    arrayEach(['first', 'last'], function(methodName, index) {
      var takeName = 'take' + (index ? 'Right' : '');

      LazyWrapper.prototype[methodName] = function() {
        return this[takeName](1).value()[0];
      };
    });

    // Add `LazyWrapper` methods for `_.initial` and `_.rest`.
    arrayEach(['initial', 'rest'], function(methodName, index) {
      var dropName = 'drop' + (index ? '' : 'Right');

      LazyWrapper.prototype[methodName] = function() {
        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
      };
    });

    // Add `LazyWrapper` methods for `_.pluck` and `_.where`.
    arrayEach(['pluck', 'where'], function(methodName, index) {
      var operationName = index ? 'filter' : 'map',
          createCallback = index ? baseMatches : property;

      LazyWrapper.prototype[methodName] = function(value) {
        return this[operationName](createCallback(value));
      };
    });

    LazyWrapper.prototype.compact = function() {
      return this.filter(identity);
    };

    LazyWrapper.prototype.reject = function(predicate, thisArg) {
      predicate = getCallback(predicate, thisArg, 1);
      return this.filter(function(value) {
        return !predicate(value);
      });
    };

    LazyWrapper.prototype.slice = function(start, end) {
      start = start == null ? 0 : (+start || 0);

      var result = this;
      if (result.__filtered__ && (start > 0 || end < 0)) {
        return new LazyWrapper(result);
      }
      if (start < 0) {
        result = result.takeRight(-start);
      } else if (start) {
        result = result.drop(start);
      }
      if (end !== undefined) {
        end = (+end || 0);
        result = end < 0 ? result.dropRight(-end) : result.take(end - start);
      }
      return result;
    };

    LazyWrapper.prototype.takeRightWhile = function(predicate, thisArg) {
      return this.reverse().takeWhile(predicate, thisArg).reverse();
    };

    LazyWrapper.prototype.toArray = function() {
      return this.take(POSITIVE_INFINITY);
    };

    // Add `LazyWrapper` methods to `lodash.prototype`.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var checkIteratee = /^(?:filter|map|reject)|While$/.test(methodName),
          retUnwrapped = /^(?:first|last)$/.test(methodName),
          lodashFunc = lodash[retUnwrapped ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName];

      if (!lodashFunc) {
        return;
      }
      lodash.prototype[methodName] = function() {
        var args = retUnwrapped ? [1] : arguments,
            chainAll = this.__chain__,
            value = this.__wrapped__,
            isHybrid = !!this.__actions__.length,
            isLazy = value instanceof LazyWrapper,
            iteratee = args[0],
            useLazy = isLazy || isArray(value);

        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
          // Avoid lazy use if the iteratee has a "length" value other than `1`.
          isLazy = useLazy = false;
        }
        var interceptor = function(value) {
          return (retUnwrapped && chainAll)
            ? lodashFunc(value, 1)[0]
            : lodashFunc.apply(undefined, arrayPush([value], args));
        };

        var action = { 'func': thru, 'args': [interceptor], 'thisArg': undefined },
            onlyLazy = isLazy && !isHybrid;

        if (retUnwrapped && !chainAll) {
          if (onlyLazy) {
            value = value.clone();
            value.__actions__.push(action);
            return func.call(value);
          }
          return lodashFunc.call(undefined, this.value())[0];
        }
        if (!retUnwrapped && useLazy) {
          value = onlyLazy ? value : new LazyWrapper(this);
          var result = func.apply(value, args);
          result.__actions__.push(action);
          return new LodashWrapper(result, chainAll);
        }
        return this.thru(interceptor);
      };
    });

    // Add `Array` and `String` methods to `lodash.prototype`.
    arrayEach(['join', 'pop', 'push', 'replace', 'shift', 'sort', 'splice', 'split', 'unshift'], function(methodName) {
      var func = (/^(?:replace|split)$/.test(methodName) ? stringProto : arrayProto)[methodName],
          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
          retUnwrapped = /^(?:join|pop|replace|shift)$/.test(methodName);

      lodash.prototype[methodName] = function() {
        var args = arguments;
        if (retUnwrapped && !this.__chain__) {
          return func.apply(this.value(), args);
        }
        return this[chainName](function(value) {
          return func.apply(value, args);
        });
      };
    });

    // Map minified function names to their real names.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var lodashFunc = lodash[methodName];
      if (lodashFunc) {
        var key = lodashFunc.name,
            names = realNames[key] || (realNames[key] = []);

        names.push({ 'name': methodName, 'func': lodashFunc });
      }
    });

    realNames[createHybridWrapper(undefined, BIND_KEY_FLAG).name] = [{ 'name': 'wrapper', 'func': undefined }];

    // Add functions to the lazy wrapper.
    LazyWrapper.prototype.clone = lazyClone;
    LazyWrapper.prototype.reverse = lazyReverse;
    LazyWrapper.prototype.value = lazyValue;

    // Add chaining functions to the `lodash` wrapper.
    lodash.prototype.chain = wrapperChain;
    lodash.prototype.commit = wrapperCommit;
    lodash.prototype.concat = wrapperConcat;
    lodash.prototype.plant = wrapperPlant;
    lodash.prototype.reverse = wrapperReverse;
    lodash.prototype.toString = wrapperToString;
    lodash.prototype.run = lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;

    // Add function aliases to the `lodash` wrapper.
    lodash.prototype.collect = lodash.prototype.map;
    lodash.prototype.head = lodash.prototype.first;
    lodash.prototype.select = lodash.prototype.filter;
    lodash.prototype.tail = lodash.prototype.rest;

    return lodash;
  }

  /*--------------------------------------------------------------------------*/

  // Export lodash.
  var _ = runInContext();

  // Some AMD build optimizers like r.js check for condition patterns like the following:
  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
    // Expose lodash to the global object when an AMD loader is present to avoid
    // errors in cases where lodash is loaded by a script tag and not intended
    // as an AMD module. See http://requirejs.org/docs/errors.html#mismatch for
    // more details.
    root._ = _;

    // Define as an anonymous module so, through path mapping, it can be
    // referenced as the "underscore" module.
    define(function() {
      return _;
    });
  }
  // Check for `exports` after `define` in case a build optimizer adds an `exports` object.
  else if (freeExports && freeModule) {
    // Export for Node.js or RingoJS.
    if (moduleExports) {
      (freeModule.exports = _)._ = _;
    }
    // Export for Rhino with CommonJS support.
    else {
      freeExports._ = _;
    }
  }
  else {
    // Export for a browser or Rhino.
    root._ = _;
  }
}.call(this));

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],542:[function(require,module,exports){
(function (process){
/**
 * Readline API façade to fix some issues
 * @Note: May look a bit like Monkey patching... if you know a better way let me know.
 */

"use strict";
var readline = require("readline");
var MuteStream = require("mute-stream");
var codePointAt = require("code-point-at");
var isFullwidthCodePoint = require("is-fullwidth-code-point");

var Interface = module.exports = {};


/**
 * Create a readline interface
 * @param  {Object} opt Readline option hash
 * @return {readline}   the new readline interface
 */

Interface.createInterface = function( opt ) {
  opt || (opt = {});
  var filteredOpt = opt;

  // Default `input` to stdin
  filteredOpt.input = opt.input || process.stdin;

  // Add mute capabilities to the output
  var ms = new MuteStream();
  ms.pipe( opt.output || process.stdout );
  filteredOpt.output = ms;

  // Create the readline
  var rl = readline.createInterface( filteredOpt );

  // Fix bug with refreshLine
  var _refreshLine = rl._refreshLine;
  rl._refreshLine = function() {
    _refreshLine.call(rl);

    var line = this._prompt + this.line;
    var cursorPos = this._getCursorPos();

    readline.moveCursor(this.output, -line.length, 0);
    readline.moveCursor(this.output, cursorPos.cols, 0);
  };

  // Returns current cursor's position and line
  rl._getCursorPos = function() {
    var columns = this.columns;
    var strBeforeCursor = this._prompt + this.line.substring(0, this.cursor);
    var dispPos = this._getDisplayPos(strBeforeCursor);
    var cols = dispPos.cols;
    var rows = dispPos.rows;
    // If the cursor is on a full-width character which steps over the line,
    // move the cursor to the beginning of the next line.
    if (cols + 1 === columns &&
        this.cursor < this.line.length &&
        isFullwidthCodePoint(codePointAt(this.line, this.cursor))) {
      rows++;
      cols = 0;
    }
    return {cols: cols, rows: rows};
  };

  // Returns the last character's display position of the given string
  rl._getDisplayPos = function(str) {
    var offset = 0;
    var col = this.columns;
    var row = 0;
    var code;
    str = stripVTControlCharacters(str);
    for (var i = 0, len = str.length; i < len; i++) {
      code = codePointAt(str, i);
      if (code >= 0x10000) { // surrogates
        i++;
      }
      if (code === 0x0a) { // new line \n
        offset = 0;
        row += 1;
        continue;
      }
      if (isFullwidthCodePoint(code)) {
        if ((offset + 1) % col === 0) {
          offset++;
        }
        offset += 2;
      } else {
        offset++;
      }
    }
    var cols = offset % col;
    var rows = row + (offset - cols) / col;
    return {cols: cols, rows: rows};
  };

  // Prevent arrows from breaking the question line
  var origWrite = rl._ttyWrite;
  rl._ttyWrite = function( s, key ) {
    key || (key = {});

    if ( key.name === "up" ) return;
    if ( key.name === "down" ) return;

    origWrite.apply( this, arguments );
  };

  return rl;
};

// Regexes used for ansi escape code splitting
var metaKeyCodeReAnywhere = /(?:\x1b)([a-zA-Z0-9])/;
var functionKeyCodeReAnywhere = new RegExp('(?:\x1b+)(O|N|\\[|\\[\\[)(?:' + [
  '(\\d+)(?:;(\\d+))?([~^$])',
  '(?:M([@ #!a`])(.)(.))', // mouse
  '(?:1;)?(\\d+)?([a-zA-Z])'
].join('|') + ')');

/**
 * Tries to remove all VT control characters. Use to estimate displayed
 * string width. May be buggy due to not running a real state machine
 */
function stripVTControlCharacters (str) {
  str = str.replace(new RegExp(functionKeyCodeReAnywhere.source, 'g'), '');
  return str.replace(new RegExp(metaKeyCodeReAnywhere.source, 'g'), '');
}

}).call(this,require('_process'))
},{"_process":215,"code-point-at":543,"is-fullwidth-code-point":545,"mute-stream":547,"readline":2}],543:[function(require,module,exports){
'use strict';
var numberIsNan = require('number-is-nan');

module.exports = function (str, pos) {
	if (str === null || str === undefined) {
		throw TypeError();
	}

	str = String(str);

	var size = str.length;
	var i = pos ? Number(pos) : 0;

	if (numberIsNan(i)) {
		i = 0;
	}

	if (i < 0 || i >= size) {
		return undefined;
	}

	var first = str.charCodeAt(i);

	if (first >= 0xD800 && first <= 0xDBFF && size > i + 1) {
		var second = str.charCodeAt(i + 1);

		if (second >= 0xDC00 && second <= 0xDFFF) {
			return (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
		}
	}

	return first;
};

},{"number-is-nan":544}],544:[function(require,module,exports){
'use strict';
module.exports = Number.isNaN || function (x) {
	return x !== x;
};

},{}],545:[function(require,module,exports){
'use strict';
var numberIsNan = require('number-is-nan');

module.exports = function (x) {
	if (numberIsNan(x)) {
		return false;
	}

	// https://github.com/nodejs/io.js/blob/cff7300a578be1b10001f2d967aaedc88aee6402/lib/readline.js#L1369

	// code points are derived from:
	// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
	if (x >= 0x1100 && (
		x <= 0x115f ||  // Hangul Jamo
		0x2329 === x || // LEFT-POINTING ANGLE BRACKET
		0x232a === x || // RIGHT-POINTING ANGLE BRACKET
		// CJK Radicals Supplement .. Enclosed CJK Letters and Months
		(0x2e80 <= x && x <= 0x3247 && x !== 0x303f) ||
		// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
		0x3250 <= x && x <= 0x4dbf ||
		// CJK Unified Ideographs .. Yi Radicals
		0x4e00 <= x && x <= 0xa4c6 ||
		// Hangul Jamo Extended-A
		0xa960 <= x && x <= 0xa97c ||
		// Hangul Syllables
		0xac00 <= x && x <= 0xd7a3 ||
		// CJK Compatibility Ideographs
		0xf900 <= x && x <= 0xfaff ||
		// Vertical Forms
		0xfe10 <= x && x <= 0xfe19 ||
		// CJK Compatibility Forms .. Small Form Variants
		0xfe30 <= x && x <= 0xfe6b ||
		// Halfwidth and Fullwidth Forms
		0xff01 <= x && x <= 0xff60 ||
		0xffe0 <= x && x <= 0xffe6 ||
		// Kana Supplement
		0x1b000 <= x && x <= 0x1b001 ||
		// Enclosed Ideographic Supplement
		0x1f200 <= x && x <= 0x1f251 ||
		// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
		0x20000 <= x && x <= 0x3fffd)) {
		return true;
	}

	return false;
}

},{"number-is-nan":546}],546:[function(require,module,exports){
arguments[4][544][0].apply(exports,arguments)
},{"dup":544}],547:[function(require,module,exports){
var Stream = require('stream')

module.exports = MuteStream

// var out = new MuteStream(process.stdout)
// argument auto-pipes
function MuteStream (opts) {
  Stream.apply(this)
  opts = opts || {}
  this.writable = this.readable = true
  this.muted = false
  this.on('pipe', this._onpipe)
  this.replace = opts.replace

  // For readline-type situations
  // This much at the start of a line being redrawn after a ctrl char
  // is seen (such as backspace) won't be redrawn as the replacement
  this._prompt = opts.prompt || null
  this._hadControl = false
}

MuteStream.prototype = Object.create(Stream.prototype)

Object.defineProperty(MuteStream.prototype, 'constructor', {
  value: MuteStream,
  enumerable: false
})

MuteStream.prototype.mute = function () {
  this.muted = true
}

MuteStream.prototype.unmute = function () {
  this.muted = false
}

Object.defineProperty(MuteStream.prototype, '_onpipe', {
  value: onPipe,
  enumerable: false,
  writable: true,
  configurable: true
})

function onPipe (src) {
  this._src = src
}

Object.defineProperty(MuteStream.prototype, 'isTTY', {
  get: getIsTTY,
  set: setIsTTY,
  enumerable: true,
  configurable: true
})

function getIsTTY () {
  return( (this._dest) ? this._dest.isTTY
        : (this._src) ? this._src.isTTY
        : false
        )
}

// basically just get replace the getter/setter with a regular value
function setIsTTY (isTTY) {
  Object.defineProperty(this, 'isTTY', {
    value: isTTY,
    enumerable: true,
    writable: true,
    configurable: true
  })
}

Object.defineProperty(MuteStream.prototype, 'rows', {
  get: function () {
    return( this._dest ? this._dest.rows
          : this._src ? this._src.rows
          : undefined )
  }, enumerable: true, configurable: true })

Object.defineProperty(MuteStream.prototype, 'columns', {
  get: function () {
    return( this._dest ? this._dest.columns
          : this._src ? this._src.columns
          : undefined )
  }, enumerable: true, configurable: true })


MuteStream.prototype.pipe = function (dest) {
  this._dest = dest
  return Stream.prototype.pipe.call(this, dest)
}

MuteStream.prototype.pause = function () {
  if (this._src) return this._src.pause()
}

MuteStream.prototype.resume = function () {
  if (this._src) return this._src.resume()
}

MuteStream.prototype.write = function (c) {
  if (this.muted) {
    if (!this.replace) return true
    if (c.match(/^\u001b/)) {
      this._hadControl = true
      return this.emit('data', c)
    } else {
      if (this._prompt && this._hadControl &&
          c.indexOf(this._prompt) === 0) {
        this._hadControl = false
        this.emit('data', this._prompt)
        c = c.substr(this._prompt.length)
      }
      c = c.toString().replace(/./g, this.replace)
    }
  }
  this.emit('data', c)
}

MuteStream.prototype.end = function (c) {
  if (this.muted) {
    if (c && this.replace) {
      c = c.toString().replace(/./g, this.replace)
    } else {
      c = null
    }
  }
  if (c) this.emit('data', c)
  this.emit('end')
}

function proxy (fn) { return function () {
  var d = this._dest
  var s = this._src
  if (d && d[fn]) d[fn].apply(d, arguments)
  if (s && s[fn]) s[fn].apply(s, arguments)
}}

MuteStream.prototype.destroy = proxy('destroy')
MuteStream.prototype.destroySoon = proxy('destroySoon')
MuteStream.prototype.close = proxy('close')

},{"stream":233}],548:[function(require,module,exports){
'use strict';

var once = require('once');

/**
 * Run a function asynchronously or synchronously
 * @param   {Function} func  Function to run
 * @param   {Function} cb    Callback function passed the `func` returned value
 * @...rest {Mixed}    rest  Arguments to pass to `func`
 * @return  {Null}
 */

module.exports = function (func, cb) {
  var async = false;
  var answer = func.apply({
    async: function () {
      async = true;
      return once(cb);
    }
  }, Array.prototype.slice.call(arguments, 2) );

  if (!async) {
    cb(answer);
  }
};

},{"once":550}],549:[function(require,module,exports){
// Returns a wrapper function that returns a wrapped callback
// The wrapper function should do some stuff, and return a
// presumably different callback function.
// This makes sure that own properties are retained, so that
// decorations and such are not lost along the way.
module.exports = wrappy
function wrappy (fn, cb) {
  if (fn && cb) return wrappy(fn)(cb)

  if (typeof fn !== 'function')
    throw new TypeError('need wrapper function')

  Object.keys(fn).forEach(function (k) {
    wrapper[k] = fn[k]
  })

  return wrapper

  function wrapper() {
    var args = new Array(arguments.length)
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i]
    }
    var ret = fn.apply(this, args)
    var cb = args[args.length-1]
    if (typeof ret === 'function' && ret !== cb) {
      Object.keys(cb).forEach(function (k) {
        ret[k] = cb[k]
      })
    }
    return ret
  }
}

},{}],550:[function(require,module,exports){
var wrappy = require('wrappy')
module.exports = wrappy(once)

once.proto = once(function () {
  Object.defineProperty(Function.prototype, 'once', {
    value: function () {
      return once(this)
    },
    configurable: true
  })
})

function once (fn) {
  var f = function () {
    if (f.called) return f.value
    f.called = true
    return f.value = fn.apply(this, arguments)
  }
  f.called = false
  return f
}

},{"wrappy":549}],551:[function(require,module,exports){
(function (process,global){
// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.

;(function (undefined) {

  var objectTypes = {
    'function': true,
    'object': true
  };

  var
    freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports,
    freeSelf = objectTypes[typeof self] && self.Object && self,
    freeWindow = objectTypes[typeof window] && window && window.Object && window,
    freeModule = objectTypes[typeof module] && module && !module.nodeType && module,
    moduleExports = freeModule && freeModule.exports === freeExports && freeExports,
    freeGlobal = freeExports && freeModule && typeof global == 'object' && global && global.Object && global;

  var root = root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || freeSelf || this;

  var Rx = {
    internals: {},
    config: {
      Promise: root.Promise
    },
    helpers: { }
  };

  // Defaults
  var noop = Rx.helpers.noop = function () { },
    identity = Rx.helpers.identity = function (x) { return x; },
    defaultNow = Rx.helpers.defaultNow = Date.now,
    defaultComparer = Rx.helpers.defaultComparer = function (x, y) { return isEqual(x, y); },
    defaultSubComparer = Rx.helpers.defaultSubComparer = function (x, y) { return x > y ? 1 : (x < y ? -1 : 0); },
    defaultKeySerializer = Rx.helpers.defaultKeySerializer = function (x) { return x.toString(); },
    defaultError = Rx.helpers.defaultError = function (err) { throw err; },
    isPromise = Rx.helpers.isPromise = function (p) { return !!p && typeof p.subscribe !== 'function' && typeof p.then === 'function'; },
    isFunction = Rx.helpers.isFunction = (function () {

      var isFn = function (value) {
        return typeof value == 'function' || false;
      }

      // fallback for older versions of Chrome and Safari
      if (isFn(/x/)) {
        isFn = function(value) {
          return typeof value == 'function' && toString.call(value) == '[object Function]';
        };
      }

      return isFn;
    }());

    function cloneArray(arr) {
      var len = arr.length, a = new Array(len);
      for(var i = 0; i < len; i++) { a[i] = arr[i]; }
      return a;
    }

  var errorObj = {e: {}};
  function tryCatcherGen(tryCatchTarget) {
    return function tryCatcher() {
      try {
        return tryCatchTarget.apply(this, arguments);
      } catch (e) {
        errorObj.e = e;
        return errorObj;
      }
    }
  }
  var tryCatch = Rx.internals.tryCatch = function tryCatch(fn) {
    if (!isFunction(fn)) { throw new TypeError('fn must be a function'); }
    return tryCatcherGen(fn);
  }
  function thrower(e) {
    throw e;
  }

  Rx.config.longStackSupport = false;
  var hasStacks = false, stacks = tryCatch(function () { throw new Error(); })();
  hasStacks = !!stacks.e && !!stacks.e.stack;

  // All code after this point will be filtered from stack traces reported by RxJS
  var rStartingLine = captureLine(), rFileName;

  var STACK_JUMP_SEPARATOR = 'From previous event:';

  function makeStackTraceLong(error, observable) {
    // If possible, transform the error stack trace by removing Node and RxJS
    // cruft, then concatenating with the stack trace of `observable`.
    if (hasStacks &&
        observable.stack &&
        typeof error === 'object' &&
        error !== null &&
        error.stack &&
        error.stack.indexOf(STACK_JUMP_SEPARATOR) === -1
    ) {
      var stacks = [];
      for (var o = observable; !!o; o = o.source) {
        if (o.stack) {
          stacks.unshift(o.stack);
        }
      }
      stacks.unshift(error.stack);

      var concatedStacks = stacks.join('\n' + STACK_JUMP_SEPARATOR + '\n');
      error.stack = filterStackString(concatedStacks);
    }
  }

  function filterStackString(stackString) {
    var lines = stackString.split('\n'), desiredLines = [];
    for (var i = 0, len = lines.length; i < len; i++) {
      var line = lines[i];

      if (!isInternalFrame(line) && !isNodeFrame(line) && line) {
        desiredLines.push(line);
      }
    }
    return desiredLines.join('\n');
  }

  function isInternalFrame(stackLine) {
    var fileNameAndLineNumber = getFileNameAndLineNumber(stackLine);
    if (!fileNameAndLineNumber) {
      return false;
    }
    var fileName = fileNameAndLineNumber[0], lineNumber = fileNameAndLineNumber[1];

    return fileName === rFileName &&
      lineNumber >= rStartingLine &&
      lineNumber <= rEndingLine;
  }

  function isNodeFrame(stackLine) {
    return stackLine.indexOf('(module.js:') !== -1 ||
      stackLine.indexOf('(node.js:') !== -1;
  }

  function captureLine() {
    if (!hasStacks) { return; }

    try {
      throw new Error();
    } catch (e) {
      var lines = e.stack.split('\n');
      var firstLine = lines[0].indexOf('@') > 0 ? lines[1] : lines[2];
      var fileNameAndLineNumber = getFileNameAndLineNumber(firstLine);
      if (!fileNameAndLineNumber) { return; }

      rFileName = fileNameAndLineNumber[0];
      return fileNameAndLineNumber[1];
    }
  }

  function getFileNameAndLineNumber(stackLine) {
    // Named functions: 'at functionName (filename:lineNumber:columnNumber)'
    var attempt1 = /at .+ \((.+):(\d+):(?:\d+)\)$/.exec(stackLine);
    if (attempt1) { return [attempt1[1], Number(attempt1[2])]; }

    // Anonymous functions: 'at filename:lineNumber:columnNumber'
    var attempt2 = /at ([^ ]+):(\d+):(?:\d+)$/.exec(stackLine);
    if (attempt2) { return [attempt2[1], Number(attempt2[2])]; }

    // Firefox style: 'function@filename:lineNumber or @filename:lineNumber'
    var attempt3 = /.*@(.+):(\d+)$/.exec(stackLine);
    if (attempt3) { return [attempt3[1], Number(attempt3[2])]; }
  }

  var EmptyError = Rx.EmptyError = function() {
    this.message = 'Sequence contains no elements.';
    this.name = 'EmptyError';
    Error.call(this);
  };
  EmptyError.prototype = Object.create(Error.prototype);

  var ObjectDisposedError = Rx.ObjectDisposedError = function() {
    this.message = 'Object has been disposed';
    this.name = 'ObjectDisposedError';
    Error.call(this);
  };
  ObjectDisposedError.prototype = Object.create(Error.prototype);

  var ArgumentOutOfRangeError = Rx.ArgumentOutOfRangeError = function () {
    this.message = 'Argument out of range';
    this.name = 'ArgumentOutOfRangeError';
    Error.call(this);
  };
  ArgumentOutOfRangeError.prototype = Object.create(Error.prototype);

  var NotSupportedError = Rx.NotSupportedError = function (message) {
    this.message = message || 'This operation is not supported';
    this.name = 'NotSupportedError';
    Error.call(this);
  };
  NotSupportedError.prototype = Object.create(Error.prototype);

  var NotImplementedError = Rx.NotImplementedError = function (message) {
    this.message = message || 'This operation is not implemented';
    this.name = 'NotImplementedError';
    Error.call(this);
  };
  NotImplementedError.prototype = Object.create(Error.prototype);

  var notImplemented = Rx.helpers.notImplemented = function () {
    throw new NotImplementedError();
  };

  var notSupported = Rx.helpers.notSupported = function () {
    throw new NotSupportedError();
  };

  // Shim in iterator support
  var $iterator$ = (typeof Symbol === 'function' && Symbol.iterator) ||
    '_es6shim_iterator_';
  // Bug for mozilla version
  if (root.Set && typeof new root.Set()['@@iterator'] === 'function') {
    $iterator$ = '@@iterator';
  }

  var doneEnumerator = Rx.doneEnumerator = { done: true, value: undefined };

  var isIterable = Rx.helpers.isIterable = function (o) {
    return o[$iterator$] !== undefined;
  }

  var isArrayLike = Rx.helpers.isArrayLike = function (o) {
    return o && o.length !== undefined;
  }

  Rx.helpers.iterator = $iterator$;

  var bindCallback = Rx.internals.bindCallback = function (func, thisArg, argCount) {
    if (typeof thisArg === 'undefined') { return func; }
    switch(argCount) {
      case 0:
        return function() {
          return func.call(thisArg)
        };
      case 1:
        return function(arg) {
          return func.call(thisArg, arg);
        }
      case 2:
        return function(value, index) {
          return func.call(thisArg, value, index);
        };
      case 3:
        return function(value, index, collection) {
          return func.call(thisArg, value, index, collection);
        };
    }

    return function() {
      return func.apply(thisArg, arguments);
    };
  };

  /** Used to determine if values are of the language type Object */
  var dontEnums = ['toString',
    'toLocaleString',
    'valueOf',
    'hasOwnProperty',
    'isPrototypeOf',
    'propertyIsEnumerable',
    'constructor'],
  dontEnumsLength = dontEnums.length;

  /** `Object#toString` result shortcuts */
  var argsClass = '[object Arguments]',
    arrayClass = '[object Array]',
    boolClass = '[object Boolean]',
    dateClass = '[object Date]',
    errorClass = '[object Error]',
    funcClass = '[object Function]',
    numberClass = '[object Number]',
    objectClass = '[object Object]',
    regexpClass = '[object RegExp]',
    stringClass = '[object String]';

  var toString = Object.prototype.toString,
    hasOwnProperty = Object.prototype.hasOwnProperty,
    supportsArgsClass = toString.call(arguments) == argsClass, // For less <IE9 && FF<4
    supportNodeClass,
    errorProto = Error.prototype,
    objectProto = Object.prototype,
    stringProto = String.prototype,
    propertyIsEnumerable = objectProto.propertyIsEnumerable;

  try {
    supportNodeClass = !(toString.call(document) == objectClass && !({ 'toString': 0 } + ''));
  } catch (e) {
    supportNodeClass = true;
  }

  var nonEnumProps = {};
  nonEnumProps[arrayClass] = nonEnumProps[dateClass] = nonEnumProps[numberClass] = { 'constructor': true, 'toLocaleString': true, 'toString': true, 'valueOf': true };
  nonEnumProps[boolClass] = nonEnumProps[stringClass] = { 'constructor': true, 'toString': true, 'valueOf': true };
  nonEnumProps[errorClass] = nonEnumProps[funcClass] = nonEnumProps[regexpClass] = { 'constructor': true, 'toString': true };
  nonEnumProps[objectClass] = { 'constructor': true };

  var support = {};
  (function () {
    var ctor = function() { this.x = 1; },
      props = [];

    ctor.prototype = { 'valueOf': 1, 'y': 1 };
    for (var key in new ctor) { props.push(key); }
    for (key in arguments) { }

    // Detect if `name` or `message` properties of `Error.prototype` are enumerable by default.
    support.enumErrorProps = propertyIsEnumerable.call(errorProto, 'message') || propertyIsEnumerable.call(errorProto, 'name');

    // Detect if `prototype` properties are enumerable by default.
    support.enumPrototypes = propertyIsEnumerable.call(ctor, 'prototype');

    // Detect if `arguments` object indexes are non-enumerable
    support.nonEnumArgs = key != 0;

    // Detect if properties shadowing those on `Object.prototype` are non-enumerable.
    support.nonEnumShadows = !/valueOf/.test(props);
  }(1));

  var isObject = Rx.internals.isObject = function(value) {
    var type = typeof value;
    return value && (type == 'function' || type == 'object') || false;
  };

  function keysIn(object) {
    var result = [];
    if (!isObject(object)) {
      return result;
    }
    if (support.nonEnumArgs && object.length && isArguments(object)) {
      object = slice.call(object);
    }
    var skipProto = support.enumPrototypes && typeof object == 'function',
        skipErrorProps = support.enumErrorProps && (object === errorProto || object instanceof Error);

    for (var key in object) {
      if (!(skipProto && key == 'prototype') &&
          !(skipErrorProps && (key == 'message' || key == 'name'))) {
        result.push(key);
      }
    }

    if (support.nonEnumShadows && object !== objectProto) {
      var ctor = object.constructor,
          index = -1,
          length = dontEnumsLength;

      if (object === (ctor && ctor.prototype)) {
        var className = object === stringProto ? stringClass : object === errorProto ? errorClass : toString.call(object),
            nonEnum = nonEnumProps[className];
      }
      while (++index < length) {
        key = dontEnums[index];
        if (!(nonEnum && nonEnum[key]) && hasOwnProperty.call(object, key)) {
          result.push(key);
        }
      }
    }
    return result;
  }

  function internalFor(object, callback, keysFunc) {
    var index = -1,
      props = keysFunc(object),
      length = props.length;

    while (++index < length) {
      var key = props[index];
      if (callback(object[key], key, object) === false) {
        break;
      }
    }
    return object;
  }

  function internalForIn(object, callback) {
    return internalFor(object, callback, keysIn);
  }

  function isNode(value) {
    // IE < 9 presents DOM nodes as `Object` objects except they have `toString`
    // methods that are `typeof` "string" and still can coerce nodes to strings
    return typeof value.toString != 'function' && typeof (value + '') == 'string';
  }

  var isArguments = function(value) {
    return (value && typeof value == 'object') ? toString.call(value) == argsClass : false;
  }

  // fallback for browsers that can't detect `arguments` objects by [[Class]]
  if (!supportsArgsClass) {
    isArguments = function(value) {
      return (value && typeof value == 'object') ? hasOwnProperty.call(value, 'callee') : false;
    };
  }

  var isEqual = Rx.internals.isEqual = function (x, y) {
    return deepEquals(x, y, [], []);
  };

  /** @private
   * Used for deep comparison
   **/
  function deepEquals(a, b, stackA, stackB) {
    // exit early for identical values
    if (a === b) {
      // treat `+0` vs. `-0` as not equal
      return a !== 0 || (1 / a == 1 / b);
    }

    var type = typeof a,
        otherType = typeof b;

    // exit early for unlike primitive values
    if (a === a && (a == null || b == null ||
        (type != 'function' && type != 'object' && otherType != 'function' && otherType != 'object'))) {
      return false;
    }

    // compare [[Class]] names
    var className = toString.call(a),
        otherClass = toString.call(b);

    if (className == argsClass) {
      className = objectClass;
    }
    if (otherClass == argsClass) {
      otherClass = objectClass;
    }
    if (className != otherClass) {
      return false;
    }
    switch (className) {
      case boolClass:
      case dateClass:
        // coerce dates and booleans to numbers, dates to milliseconds and booleans
        // to `1` or `0` treating invalid dates coerced to `NaN` as not equal
        return +a == +b;

      case numberClass:
        // treat `NaN` vs. `NaN` as equal
        return (a != +a) ?
          b != +b :
          // but treat `-0` vs. `+0` as not equal
          (a == 0 ? (1 / a == 1 / b) : a == +b);

      case regexpClass:
      case stringClass:
        // coerce regexes to strings (http://es5.github.io/#x15.10.6.4)
        // treat string primitives and their corresponding object instances as equal
        return a == String(b);
    }
    var isArr = className == arrayClass;
    if (!isArr) {

      // exit for functions and DOM nodes
      if (className != objectClass || (!support.nodeClass && (isNode(a) || isNode(b)))) {
        return false;
      }
      // in older versions of Opera, `arguments` objects have `Array` constructors
      var ctorA = !support.argsObject && isArguments(a) ? Object : a.constructor,
          ctorB = !support.argsObject && isArguments(b) ? Object : b.constructor;

      // non `Object` object instances with different constructors are not equal
      if (ctorA != ctorB &&
            !(hasOwnProperty.call(a, 'constructor') && hasOwnProperty.call(b, 'constructor')) &&
            !(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
            ('constructor' in a && 'constructor' in b)
          ) {
        return false;
      }
    }
    // assume cyclic structures are equal
    // the algorithm for detecting cyclic structures is adapted from ES 5.1
    // section 15.12.3, abstract operation `JO` (http://es5.github.io/#x15.12.3)
    var initedStack = !stackA;
    stackA || (stackA = []);
    stackB || (stackB = []);

    var length = stackA.length;
    while (length--) {
      if (stackA[length] == a) {
        return stackB[length] == b;
      }
    }
    var size = 0;
    var result = true;

    // add `a` and `b` to the stack of traversed objects
    stackA.push(a);
    stackB.push(b);

    // recursively compare objects and arrays (susceptible to call stack limits)
    if (isArr) {
      // compare lengths to determine if a deep comparison is necessary
      length = a.length;
      size = b.length;
      result = size == length;

      if (result) {
        // deep compare the contents, ignoring non-numeric properties
        while (size--) {
          var index = length,
              value = b[size];

          if (!(result = deepEquals(a[size], value, stackA, stackB))) {
            break;
          }
        }
      }
    }
    else {
      // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
      // which, in this case, is more costly
      internalForIn(b, function(value, key, b) {
        if (hasOwnProperty.call(b, key)) {
          // count the number of properties.
          size++;
          // deep compare each property value.
          return (result = hasOwnProperty.call(a, key) && deepEquals(a[key], value, stackA, stackB));
        }
      });

      if (result) {
        // ensure both objects have the same number of properties
        internalForIn(a, function(value, key, a) {
          if (hasOwnProperty.call(a, key)) {
            // `size` will be `-1` if `a` has more properties than `b`
            return (result = --size > -1);
          }
        });
      }
    }
    stackA.pop();
    stackB.pop();

    return result;
  }

  var hasProp = {}.hasOwnProperty,
      slice = Array.prototype.slice;

  var inherits = Rx.internals.inherits = function (child, parent) {
    function __() { this.constructor = child; }
    __.prototype = parent.prototype;
    child.prototype = new __();
  };

  var addProperties = Rx.internals.addProperties = function (obj) {
    for(var sources = [], i = 1, len = arguments.length; i < len; i++) { sources.push(arguments[i]); }
    for (var idx = 0, ln = sources.length; idx < ln; idx++) {
      var source = sources[idx];
      for (var prop in source) {
        obj[prop] = source[prop];
      }
    }
  };

  // Rx Utils
  var addRef = Rx.internals.addRef = function (xs, r) {
    return new AnonymousObservable(function (observer) {
      return new CompositeDisposable(r.getDisposable(), xs.subscribe(observer));
    });
  };

  function arrayInitialize(count, factory) {
    var a = new Array(count);
    for (var i = 0; i < count; i++) {
      a[i] = factory();
    }
    return a;
  }

  /**
   * Represents a group of disposable resources that are disposed together.
   * @constructor
   */
  var CompositeDisposable = Rx.CompositeDisposable = function () {
    var args = [], i, len;
    if (Array.isArray(arguments[0])) {
      args = arguments[0];
      len = args.length;
    } else {
      len = arguments.length;
      args = new Array(len);
      for(i = 0; i < len; i++) { args[i] = arguments[i]; }
    }
    for(i = 0; i < len; i++) {
      if (!isDisposable(args[i])) { throw new TypeError('Not a disposable'); }
    }
    this.disposables = args;
    this.isDisposed = false;
    this.length = args.length;
  };

  var CompositeDisposablePrototype = CompositeDisposable.prototype;

  /**
   * Adds a disposable to the CompositeDisposable or disposes the disposable if the CompositeDisposable is disposed.
   * @param {Mixed} item Disposable to add.
   */
  CompositeDisposablePrototype.add = function (item) {
    if (this.isDisposed) {
      item.dispose();
    } else {
      this.disposables.push(item);
      this.length++;
    }
  };

  /**
   * Removes and disposes the first occurrence of a disposable from the CompositeDisposable.
   * @param {Mixed} item Disposable to remove.
   * @returns {Boolean} true if found; false otherwise.
   */
  CompositeDisposablePrototype.remove = function (item) {
    var shouldDispose = false;
    if (!this.isDisposed) {
      var idx = this.disposables.indexOf(item);
      if (idx !== -1) {
        shouldDispose = true;
        this.disposables.splice(idx, 1);
        this.length--;
        item.dispose();
      }
    }
    return shouldDispose;
  };

  /**
   *  Disposes all disposables in the group and removes them from the group.
   */
  CompositeDisposablePrototype.dispose = function () {
    if (!this.isDisposed) {
      this.isDisposed = true;
      var len = this.disposables.length, currentDisposables = new Array(len);
      for(var i = 0; i < len; i++) { currentDisposables[i] = this.disposables[i]; }
      this.disposables = [];
      this.length = 0;

      for (i = 0; i < len; i++) {
        currentDisposables[i].dispose();
      }
    }
  };

  /**
   * Provides a set of static methods for creating Disposables.
   * @param {Function} dispose Action to run during the first call to dispose. The action is guaranteed to be run at most once.
   */
  var Disposable = Rx.Disposable = function (action) {
    this.isDisposed = false;
    this.action = action || noop;
  };

  /** Performs the task of cleaning up resources. */
  Disposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this.action();
      this.isDisposed = true;
    }
  };

  /**
   * Creates a disposable object that invokes the specified action when disposed.
   * @param {Function} dispose Action to run during the first call to dispose. The action is guaranteed to be run at most once.
   * @return {Disposable} The disposable object that runs the given action upon disposal.
   */
  var disposableCreate = Disposable.create = function (action) { return new Disposable(action); };

  /**
   * Gets the disposable that does nothing when disposed.
   */
  var disposableEmpty = Disposable.empty = { dispose: noop };

  /**
   * Validates whether the given object is a disposable
   * @param {Object} Object to test whether it has a dispose method
   * @returns {Boolean} true if a disposable object, else false.
   */
  var isDisposable = Disposable.isDisposable = function (d) {
    return d && isFunction(d.dispose);
  };

  var checkDisposed = Disposable.checkDisposed = function (disposable) {
    if (disposable.isDisposed) { throw new ObjectDisposedError(); }
  };

  // Single assignment
  var SingleAssignmentDisposable = Rx.SingleAssignmentDisposable = function () {
    this.isDisposed = false;
    this.current = null;
  };
  SingleAssignmentDisposable.prototype.getDisposable = function () {
    return this.current;
  };
  SingleAssignmentDisposable.prototype.setDisposable = function (value) {
    if (this.current) { throw new Error('Disposable has already been assigned'); }
    var shouldDispose = this.isDisposed;
    !shouldDispose && (this.current = value);
    shouldDispose && value && value.dispose();
  };
  SingleAssignmentDisposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this.isDisposed = true;
      var old = this.current;
      this.current = null;
    }
    old && old.dispose();
  };

  // Multiple assignment disposable
  var SerialDisposable = Rx.SerialDisposable = function () {
    this.isDisposed = false;
    this.current = null;
  };
  SerialDisposable.prototype.getDisposable = function () {
    return this.current;
  };
  SerialDisposable.prototype.setDisposable = function (value) {
    var shouldDispose = this.isDisposed;
    if (!shouldDispose) {
      var old = this.current;
      this.current = value;
    }
    old && old.dispose();
    shouldDispose && value && value.dispose();
  };
  SerialDisposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this.isDisposed = true;
      var old = this.current;
      this.current = null;
    }
    old && old.dispose();
  };

  /**
   * Represents a disposable resource that only disposes its underlying disposable resource when all dependent disposable objects have been disposed.
   */
  var RefCountDisposable = Rx.RefCountDisposable = (function () {

    function InnerDisposable(disposable) {
      this.disposable = disposable;
      this.disposable.count++;
      this.isInnerDisposed = false;
    }

    InnerDisposable.prototype.dispose = function () {
      if (!this.disposable.isDisposed && !this.isInnerDisposed) {
        this.isInnerDisposed = true;
        this.disposable.count--;
        if (this.disposable.count === 0 && this.disposable.isPrimaryDisposed) {
          this.disposable.isDisposed = true;
          this.disposable.underlyingDisposable.dispose();
        }
      }
    };

    /**
     * Initializes a new instance of the RefCountDisposable with the specified disposable.
     * @constructor
     * @param {Disposable} disposable Underlying disposable.
      */
    function RefCountDisposable(disposable) {
      this.underlyingDisposable = disposable;
      this.isDisposed = false;
      this.isPrimaryDisposed = false;
      this.count = 0;
    }

    /**
     * Disposes the underlying disposable only when all dependent disposables have been disposed
     */
    RefCountDisposable.prototype.dispose = function () {
      if (!this.isDisposed && !this.isPrimaryDisposed) {
        this.isPrimaryDisposed = true;
        if (this.count === 0) {
          this.isDisposed = true;
          this.underlyingDisposable.dispose();
        }
      }
    };

    /**
     * Returns a dependent disposable that when disposed decreases the refcount on the underlying disposable.
     * @returns {Disposable} A dependent disposable contributing to the reference count that manages the underlying disposable's lifetime.
     */
    RefCountDisposable.prototype.getDisposable = function () {
      return this.isDisposed ? disposableEmpty : new InnerDisposable(this);
    };

    return RefCountDisposable;
  })();

  var ScheduledItem = Rx.internals.ScheduledItem = function (scheduler, state, action, dueTime, comparer) {
    this.scheduler = scheduler;
    this.state = state;
    this.action = action;
    this.dueTime = dueTime;
    this.comparer = comparer || defaultSubComparer;
    this.disposable = new SingleAssignmentDisposable();
  }

  ScheduledItem.prototype.invoke = function () {
    this.disposable.setDisposable(this.invokeCore());
  };

  ScheduledItem.prototype.compareTo = function (other) {
    return this.comparer(this.dueTime, other.dueTime);
  };

  ScheduledItem.prototype.isCancelled = function () {
    return this.disposable.isDisposed;
  };

  ScheduledItem.prototype.invokeCore = function () {
    return this.action(this.scheduler, this.state);
  };

  /** Provides a set of static properties to access commonly used schedulers. */
  var Scheduler = Rx.Scheduler = (function () {

    function Scheduler(now, schedule, scheduleRelative, scheduleAbsolute) {
      this.now = now;
      this._schedule = schedule;
      this._scheduleRelative = scheduleRelative;
      this._scheduleAbsolute = scheduleAbsolute;
    }

    /** Determines whether the given object is a scheduler */
    Scheduler.isScheduler = function (s) {
      return s instanceof Scheduler;
    }

    function invokeAction(scheduler, action) {
      action();
      return disposableEmpty;
    }

    var schedulerProto = Scheduler.prototype;

    /**
     * Schedules an action to be executed.
     * @param {Function} action Action to execute.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.schedule = function (action) {
      return this._schedule(action, invokeAction);
    };

    /**
     * Schedules an action to be executed.
     * @param state State passed to the action to be executed.
     * @param {Function} action Action to be executed.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleWithState = function (state, action) {
      return this._schedule(state, action);
    };

    /**
     * Schedules an action to be executed after the specified relative due time.
     * @param {Function} action Action to execute.
     * @param {Number} dueTime Relative time after which to execute the action.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleWithRelative = function (dueTime, action) {
      return this._scheduleRelative(action, dueTime, invokeAction);
    };

    /**
     * Schedules an action to be executed after dueTime.
     * @param state State passed to the action to be executed.
     * @param {Function} action Action to be executed.
     * @param {Number} dueTime Relative time after which to execute the action.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleWithRelativeAndState = function (state, dueTime, action) {
      return this._scheduleRelative(state, dueTime, action);
    };

    /**
     * Schedules an action to be executed at the specified absolute due time.
     * @param {Function} action Action to execute.
     * @param {Number} dueTime Absolute time at which to execute the action.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
      */
    schedulerProto.scheduleWithAbsolute = function (dueTime, action) {
      return this._scheduleAbsolute(action, dueTime, invokeAction);
    };

    /**
     * Schedules an action to be executed at dueTime.
     * @param {Mixed} state State passed to the action to be executed.
     * @param {Function} action Action to be executed.
     * @param {Number}dueTime Absolute time at which to execute the action.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleWithAbsoluteAndState = function (state, dueTime, action) {
      return this._scheduleAbsolute(state, dueTime, action);
    };

    /** Gets the current time according to the local machine's system clock. */
    Scheduler.now = defaultNow;

    /**
     * Normalizes the specified TimeSpan value to a positive value.
     * @param {Number} timeSpan The time span value to normalize.
     * @returns {Number} The specified TimeSpan value if it is zero or positive; otherwise, 0
     */
    Scheduler.normalize = function (timeSpan) {
      timeSpan < 0 && (timeSpan = 0);
      return timeSpan;
    };

    return Scheduler;
  }());

  var normalizeTime = Scheduler.normalize, isScheduler = Scheduler.isScheduler;

  (function (schedulerProto) {

    function invokeRecImmediate(scheduler, pair) {
      var state = pair[0], action = pair[1], group = new CompositeDisposable();
      action(state, innerAction);
      return group;

      function innerAction(state2) {
        var isAdded = false, isDone = false;

        var d = scheduler.scheduleWithState(state2, scheduleWork);
        if (!isDone) {
          group.add(d);
          isAdded = true;
        }

        function scheduleWork(_, state3) {
          if (isAdded) {
            group.remove(d);
          } else {
            isDone = true;
          }
          action(state3, innerAction);
          return disposableEmpty;
        }
      }
    }

    function invokeRecDate(scheduler, pair, method) {
      var state = pair[0], action = pair[1], group = new CompositeDisposable();
      action(state, innerAction);
      return group;

      function innerAction(state2, dueTime1) {
        var isAdded = false, isDone = false;

        var d = scheduler[method](state2, dueTime1, scheduleWork);
        if (!isDone) {
          group.add(d);
          isAdded = true;
        }

        function scheduleWork(_, state3) {
          if (isAdded) {
            group.remove(d);
          } else {
            isDone = true;
          }
          action(state3, innerAction);
          return disposableEmpty;
        }
      }
    }

    function invokeRecDateRelative(s, p) {
      return invokeRecDate(s, p, 'scheduleWithRelativeAndState');
    }

    function invokeRecDateAbsolute(s, p) {
      return invokeRecDate(s, p, 'scheduleWithAbsoluteAndState');
    }

    function scheduleInnerRecursive(action, self) {
      action(function(dt) { self(action, dt); });
    }

    /**
     * Schedules an action to be executed recursively.
     * @param {Function} action Action to execute recursively. The parameter passed to the action is used to trigger recursive scheduling of the action.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleRecursive = function (action) {
      return this.scheduleRecursiveWithState(action, scheduleInnerRecursive);
    };

    /**
     * Schedules an action to be executed recursively.
     * @param {Mixed} state State passed to the action to be executed.
     * @param {Function} action Action to execute recursively. The last parameter passed to the action is used to trigger recursive scheduling of the action, passing in recursive invocation state.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleRecursiveWithState = function (state, action) {
      return this.scheduleWithState([state, action], invokeRecImmediate);
    };

    /**
     * Schedules an action to be executed recursively after a specified relative due time.
     * @param {Function} action Action to execute recursively. The parameter passed to the action is used to trigger recursive scheduling of the action at the specified relative time.
     * @param {Number}dueTime Relative time after which to execute the action for the first time.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleRecursiveWithRelative = function (dueTime, action) {
      return this.scheduleRecursiveWithRelativeAndState(action, dueTime, scheduleInnerRecursive);
    };

    /**
     * Schedules an action to be executed recursively after a specified relative due time.
     * @param {Mixed} state State passed to the action to be executed.
     * @param {Function} action Action to execute recursively. The last parameter passed to the action is used to trigger recursive scheduling of the action, passing in the recursive due time and invocation state.
     * @param {Number}dueTime Relative time after which to execute the action for the first time.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleRecursiveWithRelativeAndState = function (state, dueTime, action) {
      return this._scheduleRelative([state, action], dueTime, invokeRecDateRelative);
    };

    /**
     * Schedules an action to be executed recursively at a specified absolute due time.
     * @param {Function} action Action to execute recursively. The parameter passed to the action is used to trigger recursive scheduling of the action at the specified absolute time.
     * @param {Number}dueTime Absolute time at which to execute the action for the first time.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleRecursiveWithAbsolute = function (dueTime, action) {
      return this.scheduleRecursiveWithAbsoluteAndState(action, dueTime, scheduleInnerRecursive);
    };

    /**
     * Schedules an action to be executed recursively at a specified absolute due time.
     * @param {Mixed} state State passed to the action to be executed.
     * @param {Function} action Action to execute recursively. The last parameter passed to the action is used to trigger recursive scheduling of the action, passing in the recursive due time and invocation state.
     * @param {Number}dueTime Absolute time at which to execute the action for the first time.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleRecursiveWithAbsoluteAndState = function (state, dueTime, action) {
      return this._scheduleAbsolute([state, action], dueTime, invokeRecDateAbsolute);
    };
  }(Scheduler.prototype));

  (function (schedulerProto) {

    /**
     * Schedules a periodic piece of work by dynamically discovering the scheduler's capabilities. The periodic task will be scheduled using window.setInterval for the base implementation.
     * @param {Number} period Period for running the work periodically.
     * @param {Function} action Action to be executed.
     * @returns {Disposable} The disposable object used to cancel the scheduled recurring action (best effort).
     */
    Scheduler.prototype.schedulePeriodic = function (period, action) {
      return this.schedulePeriodicWithState(null, period, action);
    };

    /**
     * Schedules a periodic piece of work by dynamically discovering the scheduler's capabilities. The periodic task will be scheduled using window.setInterval for the base implementation.
     * @param {Mixed} state Initial state passed to the action upon the first iteration.
     * @param {Number} period Period for running the work periodically.
     * @param {Function} action Action to be executed, potentially updating the state.
     * @returns {Disposable} The disposable object used to cancel the scheduled recurring action (best effort).
     */
    Scheduler.prototype.schedulePeriodicWithState = function(state, period, action) {
      if (typeof root.setInterval === 'undefined') { throw new NotSupportedError(); }
      period = normalizeTime(period);
      var s = state, id = root.setInterval(function () { s = action(s); }, period);
      return disposableCreate(function () { root.clearInterval(id); });
    };

  }(Scheduler.prototype));

  /** Gets a scheduler that schedules work immediately on the current thread. */
  var immediateScheduler = Scheduler.immediate = (function () {
    function scheduleNow(state, action) { return action(this, state); }
    return new Scheduler(defaultNow, scheduleNow, notSupported, notSupported);
  }());

  /**
   * Gets a scheduler that schedules work as soon as possible on the current thread.
   */
  var currentThreadScheduler = Scheduler.currentThread = (function () {
    var queue;

    function runTrampoline () {
      while (queue.length > 0) {
        var item = queue.shift();
        !item.isCancelled() && item.invoke();
      }
    }

    function scheduleNow(state, action) {
      var si = new ScheduledItem(this, state, action, this.now());

      if (!queue) {
        queue = [si];

        var result = tryCatch(runTrampoline)();
        queue = null;
        if (result === errorObj) { return thrower(result.e); }
      } else {
        queue.push(si);
      }
      return si.disposable;
    }

    var currentScheduler = new Scheduler(defaultNow, scheduleNow, notSupported, notSupported);
    currentScheduler.scheduleRequired = function () { return !queue; };

    return currentScheduler;
  }());

  var SchedulePeriodicRecursive = Rx.internals.SchedulePeriodicRecursive = (function () {
    function tick(command, recurse) {
      recurse(0, this._period);
      try {
        this._state = this._action(this._state);
      } catch (e) {
        this._cancel.dispose();
        throw e;
      }
    }

    function SchedulePeriodicRecursive(scheduler, state, period, action) {
      this._scheduler = scheduler;
      this._state = state;
      this._period = period;
      this._action = action;
    }

    SchedulePeriodicRecursive.prototype.start = function () {
      var d = new SingleAssignmentDisposable();
      this._cancel = d;
      d.setDisposable(this._scheduler.scheduleRecursiveWithRelativeAndState(0, this._period, tick.bind(this)));

      return d;
    };

    return SchedulePeriodicRecursive;
  }());

  var scheduleMethod, clearMethod;

  var localTimer = (function () {
    var localSetTimeout, localClearTimeout = noop;
    if (!!root.setTimeout) {
      localSetTimeout = root.setTimeout;
      localClearTimeout = root.clearTimeout;
    } else if (!!root.WScript) {
      localSetTimeout = function (fn, time) {
        root.WScript.Sleep(time);
        fn();
      };
    } else {
      throw new NotSupportedError();
    }

    return {
      setTimeout: localSetTimeout,
      clearTimeout: localClearTimeout
    };
  }());
  var localSetTimeout = localTimer.setTimeout,
    localClearTimeout = localTimer.clearTimeout;

  (function () {

    var nextHandle = 1, tasksByHandle = {}, currentlyRunning = false;

    clearMethod = function (handle) {
      delete tasksByHandle[handle];
    };

    function runTask(handle) {
      if (currentlyRunning) {
        localSetTimeout(function () { runTask(handle) }, 0);
      } else {
        var task = tasksByHandle[handle];
        if (task) {
          currentlyRunning = true;
          var result = tryCatch(task)();
          clearMethod(handle);
          currentlyRunning = false;
          if (result === errorObj) { return thrower(result.e); }
        }
      }
    }

    var reNative = RegExp('^' +
      String(toString)
        .replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
        .replace(/toString| for [^\]]+/g, '.*?') + '$'
    );

    var setImmediate = typeof (setImmediate = freeGlobal && moduleExports && freeGlobal.setImmediate) == 'function' &&
      !reNative.test(setImmediate) && setImmediate;

    function postMessageSupported () {
      // Ensure not in a worker
      if (!root.postMessage || root.importScripts) { return false; }
      var isAsync = false, oldHandler = root.onmessage;
      // Test for async
      root.onmessage = function () { isAsync = true; };
      root.postMessage('', '*');
      root.onmessage = oldHandler;

      return isAsync;
    }

    // Use in order, setImmediate, nextTick, postMessage, MessageChannel, script readystatechanged, setTimeout
    if (isFunction(setImmediate)) {
      scheduleMethod = function (action) {
        var id = nextHandle++;
        tasksByHandle[id] = action;
        setImmediate(function () { runTask(id); });

        return id;
      };
    } else if (typeof process !== 'undefined' && {}.toString.call(process) === '[object process]') {
      scheduleMethod = function (action) {
        var id = nextHandle++;
        tasksByHandle[id] = action;
        process.nextTick(function () { runTask(id); });

        return id;
      };
    } else if (postMessageSupported()) {
      var MSG_PREFIX = 'ms.rx.schedule' + Math.random();

      function onGlobalPostMessage(event) {
        // Only if we're a match to avoid any other global events
        if (typeof event.data === 'string' && event.data.substring(0, MSG_PREFIX.length) === MSG_PREFIX) {
          runTask(event.data.substring(MSG_PREFIX.length));
        }
      }

      if (root.addEventListener) {
        root.addEventListener('message', onGlobalPostMessage, false);
      } else if (root.attachEvent) {
        root.attachEvent('onmessage', onGlobalPostMessage);
      } else {
        root.onmessage = onGlobalPostMessage;
      }

      scheduleMethod = function (action) {
        var id = nextHandle++;
        tasksByHandle[id] = action;
        root.postMessage(MSG_PREFIX + currentId, '*');
        return id;
      };
    } else if (!!root.MessageChannel) {
      var channel = new root.MessageChannel();

      channel.port1.onmessage = function (e) { runTask(e.data); };

      scheduleMethod = function (action) {
        var id = nextHandle++;
        tasksByHandle[id] = action;
        channel.port2.postMessage(id);
        return id;
      };
    } else if ('document' in root && 'onreadystatechange' in root.document.createElement('script')) {

      scheduleMethod = function (action) {
        var scriptElement = root.document.createElement('script');
        var id = nextHandle++;
        tasksByHandle[id] = action;

        scriptElement.onreadystatechange = function () {
          runTask(id);
          scriptElement.onreadystatechange = null;
          scriptElement.parentNode.removeChild(scriptElement);
          scriptElement = null;
        };
        root.document.documentElement.appendChild(scriptElement);
        return id;
      };

    } else {
      scheduleMethod = function (action) {
        var id = nextHandle++;
        tasksByHandle[id] = action;
        localSetTimeout(function () {
          runTask(id);
        }, 0);

        return id;
      };
    }
  }());

  /**
   * Gets a scheduler that schedules work via a timed callback based upon platform.
   */
  var timeoutScheduler = Scheduler.timeout = Scheduler['default'] = (function () {

    function scheduleNow(state, action) {
      var scheduler = this, disposable = new SingleAssignmentDisposable();
      var id = scheduleMethod(function () {
        !disposable.isDisposed && disposable.setDisposable(action(scheduler, state));
      });
      return new CompositeDisposable(disposable, disposableCreate(function () {
        clearMethod(id);
      }));
    }

    function scheduleRelative(state, dueTime, action) {
      var scheduler = this, dt = Scheduler.normalize(dueTime), disposable = new SingleAssignmentDisposable();
      if (dt === 0) { return scheduler.scheduleWithState(state, action); }
      var id = localSetTimeout(function () {
        !disposable.isDisposed && disposable.setDisposable(action(scheduler, state));
      }, dt);
      return new CompositeDisposable(disposable, disposableCreate(function () {
        localClearTimeout(id);
      }));
    }

    function scheduleAbsolute(state, dueTime, action) {
      return this.scheduleWithRelativeAndState(state, dueTime - this.now(), action);
    }

    return new Scheduler(defaultNow, scheduleNow, scheduleRelative, scheduleAbsolute);
  })();

  /**
   *  Represents a notification to an observer.
   */
  var Notification = Rx.Notification = (function () {
    function Notification(kind, value, exception, accept, acceptObservable, toString) {
      this.kind = kind;
      this.value = value;
      this.exception = exception;
      this._accept = accept;
      this._acceptObservable = acceptObservable;
      this.toString = toString;
    }

    /**
     * Invokes the delegate corresponding to the notification or the observer's method corresponding to the notification and returns the produced result.
     *
     * @memberOf Notification
     * @param {Any} observerOrOnNext Delegate to invoke for an OnNext notification or Observer to invoke the notification on..
     * @param {Function} onError Delegate to invoke for an OnError notification.
     * @param {Function} onCompleted Delegate to invoke for an OnCompleted notification.
     * @returns {Any} Result produced by the observation.
     */
    Notification.prototype.accept = function (observerOrOnNext, onError, onCompleted) {
      return observerOrOnNext && typeof observerOrOnNext === 'object' ?
        this._acceptObservable(observerOrOnNext) :
        this._accept(observerOrOnNext, onError, onCompleted);
    };

    /**
     * Returns an observable sequence with a single notification.
     *
     * @memberOf Notifications
     * @param {Scheduler} [scheduler] Scheduler to send out the notification calls on.
     * @returns {Observable} The observable sequence that surfaces the behavior of the notification upon subscription.
     */
    Notification.prototype.toObservable = function (scheduler) {
      var self = this;
      isScheduler(scheduler) || (scheduler = immediateScheduler);
      return new AnonymousObservable(function (observer) {
        return scheduler.scheduleWithState(self, function (_, notification) {
          notification._acceptObservable(observer);
          notification.kind === 'N' && observer.onCompleted();
        });
      });
    };

    return Notification;
  })();

  /**
   * Creates an object that represents an OnNext notification to an observer.
   * @param {Any} value The value contained in the notification.
   * @returns {Notification} The OnNext notification containing the value.
   */
  var notificationCreateOnNext = Notification.createOnNext = (function () {
      function _accept(onNext) { return onNext(this.value); }
      function _acceptObservable(observer) { return observer.onNext(this.value); }
      function toString() { return 'OnNext(' + this.value + ')'; }

      return function (value) {
        return new Notification('N', value, null, _accept, _acceptObservable, toString);
      };
  }());

  /**
   * Creates an object that represents an OnError notification to an observer.
   * @param {Any} error The exception contained in the notification.
   * @returns {Notification} The OnError notification containing the exception.
   */
  var notificationCreateOnError = Notification.createOnError = (function () {
    function _accept (onNext, onError) { return onError(this.exception); }
    function _acceptObservable(observer) { return observer.onError(this.exception); }
    function toString () { return 'OnError(' + this.exception + ')'; }

    return function (e) {
      return new Notification('E', null, e, _accept, _acceptObservable, toString);
    };
  }());

  /**
   * Creates an object that represents an OnCompleted notification to an observer.
   * @returns {Notification} The OnCompleted notification.
   */
  var notificationCreateOnCompleted = Notification.createOnCompleted = (function () {
    function _accept (onNext, onError, onCompleted) { return onCompleted(); }
    function _acceptObservable(observer) { return observer.onCompleted(); }
    function toString () { return 'OnCompleted()'; }

    return function () {
      return new Notification('C', null, null, _accept, _acceptObservable, toString);
    };
  }());

  /**
   * Supports push-style iteration over an observable sequence.
   */
  var Observer = Rx.Observer = function () { };

  /**
   *  Creates an observer from the specified OnNext, along with optional OnError, and OnCompleted actions.
   * @param {Function} [onNext] Observer's OnNext action implementation.
   * @param {Function} [onError] Observer's OnError action implementation.
   * @param {Function} [onCompleted] Observer's OnCompleted action implementation.
   * @returns {Observer} The observer object implemented using the given actions.
   */
  var observerCreate = Observer.create = function (onNext, onError, onCompleted) {
    onNext || (onNext = noop);
    onError || (onError = defaultError);
    onCompleted || (onCompleted = noop);
    return new AnonymousObserver(onNext, onError, onCompleted);
  };

  /**
   * Abstract base class for implementations of the Observer class.
   * This base class enforces the grammar of observers where OnError and OnCompleted are terminal messages.
   */
  var AbstractObserver = Rx.internals.AbstractObserver = (function (__super__) {
    inherits(AbstractObserver, __super__);

    /**
     * Creates a new observer in a non-stopped state.
     */
    function AbstractObserver() {
      this.isStopped = false;
    }

    // Must be implemented by other observers
    AbstractObserver.prototype.next = notImplemented;
    AbstractObserver.prototype.error = notImplemented;
    AbstractObserver.prototype.completed = notImplemented;

    /**
     * Notifies the observer of a new element in the sequence.
     * @param {Any} value Next element in the sequence.
     */
    AbstractObserver.prototype.onNext = function (value) {
      !this.isStopped && this.next(value);
    };

    /**
     * Notifies the observer that an exception has occurred.
     * @param {Any} error The error that has occurred.
     */
    AbstractObserver.prototype.onError = function (error) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.error(error);
      }
    };

    /**
     * Notifies the observer of the end of the sequence.
     */
    AbstractObserver.prototype.onCompleted = function () {
      if (!this.isStopped) {
        this.isStopped = true;
        this.completed();
      }
    };

    /**
     * Disposes the observer, causing it to transition to the stopped state.
     */
    AbstractObserver.prototype.dispose = function () { this.isStopped = true; };

    AbstractObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.error(e);
        return true;
      }

      return false;
    };

    return AbstractObserver;
  }(Observer));

  /**
   * Class to create an Observer instance from delegate-based implementations of the on* methods.
   */
  var AnonymousObserver = Rx.AnonymousObserver = (function (__super__) {
    inherits(AnonymousObserver, __super__);

    /**
     * Creates an observer from the specified OnNext, OnError, and OnCompleted actions.
     * @param {Any} onNext Observer's OnNext action implementation.
     * @param {Any} onError Observer's OnError action implementation.
     * @param {Any} onCompleted Observer's OnCompleted action implementation.
     */
    function AnonymousObserver(onNext, onError, onCompleted) {
      __super__.call(this);
      this._onNext = onNext;
      this._onError = onError;
      this._onCompleted = onCompleted;
    }

    /**
     * Calls the onNext action.
     * @param {Any} value Next element in the sequence.
     */
    AnonymousObserver.prototype.next = function (value) {
      this._onNext(value);
    };

    /**
     * Calls the onError action.
     * @param {Any} error The error that has occurred.
     */
    AnonymousObserver.prototype.error = function (error) {
      this._onError(error);
    };

    /**
     *  Calls the onCompleted action.
     */
    AnonymousObserver.prototype.completed = function () {
      this._onCompleted();
    };

    return AnonymousObserver;
  }(AbstractObserver));

  var observableProto;

  /**
   * Represents a push-style collection.
   */
  var Observable = Rx.Observable = (function () {

    function makeSubscribe(self, subscribe) {
      return function (o) {
        var oldOnError = o.onError;
        o.onError = function (e) {
          makeStackTraceLong(e, self);
          oldOnError.call(o, e);
        };

        return subscribe.call(self, o);
      };
    }

    function Observable(subscribe) {
      if (Rx.config.longStackSupport && hasStacks) {
        var e = tryCatch(thrower)(new Error()).e;
        this.stack = e.stack.substring(e.stack.indexOf('\n') + 1);
        this._subscribe = makeSubscribe(this, subscribe);
      } else {
        this._subscribe = subscribe;
      }
    }

    observableProto = Observable.prototype;

    /**
    * Determines whether the given object is an Observable
    * @param {Any} An object to determine whether it is an Observable
    * @returns {Boolean} true if an Observable, else false.
    */
    Observable.isObservable = function (o) {
      return o && isFunction(o.subscribe);
    }

    /**
     *  Subscribes an o to the observable sequence.
     *  @param {Mixed} [oOrOnNext] The object that is to receive notifications or an action to invoke for each element in the observable sequence.
     *  @param {Function} [onError] Action to invoke upon exceptional termination of the observable sequence.
     *  @param {Function} [onCompleted] Action to invoke upon graceful termination of the observable sequence.
     *  @returns {Diposable} A disposable handling the subscriptions and unsubscriptions.
     */
    observableProto.subscribe = observableProto.forEach = function (oOrOnNext, onError, onCompleted) {
      return this._subscribe(typeof oOrOnNext === 'object' ?
        oOrOnNext :
        observerCreate(oOrOnNext, onError, onCompleted));
    };

    /**
     * Subscribes to the next value in the sequence with an optional "this" argument.
     * @param {Function} onNext The function to invoke on each element in the observable sequence.
     * @param {Any} [thisArg] Object to use as this when executing callback.
     * @returns {Disposable} A disposable handling the subscriptions and unsubscriptions.
     */
    observableProto.subscribeOnNext = function (onNext, thisArg) {
      return this._subscribe(observerCreate(typeof thisArg !== 'undefined' ? function(x) { onNext.call(thisArg, x); } : onNext));
    };

    /**
     * Subscribes to an exceptional condition in the sequence with an optional "this" argument.
     * @param {Function} onError The function to invoke upon exceptional termination of the observable sequence.
     * @param {Any} [thisArg] Object to use as this when executing callback.
     * @returns {Disposable} A disposable handling the subscriptions and unsubscriptions.
     */
    observableProto.subscribeOnError = function (onError, thisArg) {
      return this._subscribe(observerCreate(null, typeof thisArg !== 'undefined' ? function(e) { onError.call(thisArg, e); } : onError));
    };

    /**
     * Subscribes to the next value in the sequence with an optional "this" argument.
     * @param {Function} onCompleted The function to invoke upon graceful termination of the observable sequence.
     * @param {Any} [thisArg] Object to use as this when executing callback.
     * @returns {Disposable} A disposable handling the subscriptions and unsubscriptions.
     */
    observableProto.subscribeOnCompleted = function (onCompleted, thisArg) {
      return this._subscribe(observerCreate(null, null, typeof thisArg !== 'undefined' ? function() { onCompleted.call(thisArg); } : onCompleted));
    };

    return Observable;
  })();

  var ScheduledObserver = Rx.internals.ScheduledObserver = (function (__super__) {
    inherits(ScheduledObserver, __super__);

    function ScheduledObserver(scheduler, observer) {
      __super__.call(this);
      this.scheduler = scheduler;
      this.observer = observer;
      this.isAcquired = false;
      this.hasFaulted = false;
      this.queue = [];
      this.disposable = new SerialDisposable();
    }

    ScheduledObserver.prototype.next = function (value) {
      var self = this;
      this.queue.push(function () { self.observer.onNext(value); });
    };

    ScheduledObserver.prototype.error = function (e) {
      var self = this;
      this.queue.push(function () { self.observer.onError(e); });
    };

    ScheduledObserver.prototype.completed = function () {
      var self = this;
      this.queue.push(function () { self.observer.onCompleted(); });
    };

    ScheduledObserver.prototype.ensureActive = function () {
      var isOwner = false;
      if (!this.hasFaulted && this.queue.length > 0) {
        isOwner = !this.isAcquired;
        this.isAcquired = true;
      }
      if (isOwner) {
        this.disposable.setDisposable(this.scheduler.scheduleRecursiveWithState(this, function (parent, self) {
          var work;
          if (parent.queue.length > 0) {
            work = parent.queue.shift();
          } else {
            parent.isAcquired = false;
            return;
          }
          var res = tryCatch(work)();
          if (res === errorObj) {
            parent.queue = [];
            parent.hasFaulted = true;
            return thrower(res.e);
          }
          self(parent);
        }));
      }
    };

    ScheduledObserver.prototype.dispose = function () {
      __super__.prototype.dispose.call(this);
      this.disposable.dispose();
    };

    return ScheduledObserver;
  }(AbstractObserver));

  var ObservableBase = Rx.ObservableBase = (function (__super__) {
    inherits(ObservableBase, __super__);

    function fixSubscriber(subscriber) {
      return subscriber && isFunction(subscriber.dispose) ? subscriber :
        isFunction(subscriber) ? disposableCreate(subscriber) : disposableEmpty;
    }

    function setDisposable(s, state) {
      var ado = state[0], self = state[1];
      var sub = tryCatch(self.subscribeCore).call(self, ado);

      if (sub === errorObj) {
        if(!ado.fail(errorObj.e)) { return thrower(errorObj.e); }
      }
      ado.setDisposable(fixSubscriber(sub));
    }

    function subscribe(observer) {
      var ado = new AutoDetachObserver(observer), state = [ado, this];

      if (currentThreadScheduler.scheduleRequired()) {
        currentThreadScheduler.scheduleWithState(state, setDisposable);
      } else {
        setDisposable(null, state);
      }
      return ado;
    }

    function ObservableBase() {
      __super__.call(this, subscribe);
    }

    ObservableBase.prototype.subscribeCore = notImplemented;

    return ObservableBase;
  }(Observable));

var FlatMapObservable = (function(__super__){

    inherits(FlatMapObservable, __super__);

    function FlatMapObservable(source, selector, resultSelector, thisArg) {
        this.resultSelector = Rx.helpers.isFunction(resultSelector) ?
            resultSelector : null;

        this.selector = Rx.internals.bindCallback(Rx.helpers.isFunction(selector) ? selector : function() { return selector; }, thisArg, 3);
        this.source = source;

        __super__.call(this);

    }

    FlatMapObservable.prototype.subscribeCore = function(o) {
        return this.source.subscribe(new InnerObserver(o, this.selector, this.resultSelector, this));
    };

    function InnerObserver(observer, selector, resultSelector, source) {
        this.i = 0;
        this.selector = selector;
        this.resultSelector = resultSelector;
        this.source = source;
        this.isStopped = false;
        this.o = observer;
    }

    InnerObserver.prototype._wrapResult = function(result, x, i) {
        return this.resultSelector ?
            result.map(function(y, i2) { return this.resultSelector(x, y, i, i2); }, this) :
            result;
    };

    InnerObserver.prototype.onNext = function(x) {

        if (this.isStopped) return;

        var i = this.i++;
        var result = tryCatch(this.selector)(x, i, this.source);

        if (result === errorObj) {
            return this.o.onError(result.e);
        }

        Rx.helpers.isPromise(result) && (result = Rx.Observable.fromPromise(result));
        (Rx.helpers.isArrayLike(result) || Rx.helpers.isIterable(result)) && (result = Rx.Observable.from(result));

        this.o.onNext(this._wrapResult(result, x, i));

    };

    InnerObserver.prototype.onError = function(e) {
        if(!this.isStopped) { this.isStopped = true; this.o.onError(e); }
    };

    InnerObserver.prototype.onCompleted = function() {
        if (!this.isStopped) {this.isStopped = true; this.o.onCompleted(); }
    };

    return FlatMapObservable;

}(ObservableBase));

  var Enumerable = Rx.internals.Enumerable = function () { };

  var ConcatEnumerableObservable = (function(__super__) {
    inherits(ConcatEnumerableObservable, __super__);
    function ConcatEnumerableObservable(sources) {
      this.sources = sources;
      __super__.call(this);
    }
    
    ConcatEnumerableObservable.prototype.subscribeCore = function (o) {
      var isDisposed, subscription = new SerialDisposable();
      var cancelable = immediateScheduler.scheduleRecursiveWithState(this.sources[$iterator$](), function (e, self) {
        if (isDisposed) { return; }
        var currentItem = tryCatch(e.next).call(e);
        if (currentItem === errorObj) { return o.onError(currentItem.e); }

        if (currentItem.done) {
          return o.onCompleted();
        }

        // Check if promise
        var currentValue = currentItem.value;
        isPromise(currentValue) && (currentValue = observableFromPromise(currentValue));

        var d = new SingleAssignmentDisposable();
        subscription.setDisposable(d);
        d.setDisposable(currentValue.subscribe(new InnerObserver(o, self, e)));
      });

      return new CompositeDisposable(subscription, cancelable, disposableCreate(function () {
        isDisposed = true;
      }));
    };
    
    function InnerObserver(o, s, e) {
      this.o = o;
      this.s = s;
      this.e = e;
      this.isStopped = false;
    }
    InnerObserver.prototype.onNext = function (x) { if(!this.isStopped) { this.o.onNext(x); } };
    InnerObserver.prototype.onError = function (err) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(err);
      }
    };
    InnerObserver.prototype.onCompleted = function () {
      if (!this.isStopped) {
        this.isStopped = true;
        this.s(this.e);
      }
    };
    InnerObserver.prototype.dispose = function () { this.isStopped = true; };
    InnerObserver.prototype.fail = function (err) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(err);
        return true;
      }
      return false;
    };
    
    return ConcatEnumerableObservable;
  }(ObservableBase));

  Enumerable.prototype.concat = function () {
    return new ConcatEnumerableObservable(this);
  };
  
  var CatchErrorObservable = (function(__super__) {
    inherits(CatchErrorObservable, __super__);
    function CatchErrorObservable(sources) {
      this.sources = sources;
      __super__.call(this);
    }
    
    CatchErrorObservable.prototype.subscribeCore = function (o) {
      var e = this.sources[$iterator$]();

      var isDisposed, subscription = new SerialDisposable();
      var cancelable = immediateScheduler.scheduleRecursiveWithState(null, function (lastException, self) {
        if (isDisposed) { return; }
        var currentItem = tryCatch(e.next).call(e);
        if (currentItem === errorObj) { return o.onError(currentItem.e); }

        if (currentItem.done) {
          return lastException !== null ? o.onError(lastException) : o.onCompleted();
        }

        // Check if promise
        var currentValue = currentItem.value;
        isPromise(currentValue) && (currentValue = observableFromPromise(currentValue));

        var d = new SingleAssignmentDisposable();
        subscription.setDisposable(d);
        d.setDisposable(currentValue.subscribe(
          function(x) { o.onNext(x); },
          self,
          function() { o.onCompleted(); }));
      });
      return new CompositeDisposable(subscription, cancelable, disposableCreate(function () {
        isDisposed = true;
      }));
    };
    
    return CatchErrorObservable;
  }(ObservableBase));

  Enumerable.prototype.catchError = function () {
    return new CatchErrorObservable(this);
  };

  Enumerable.prototype.catchErrorWhen = function (notificationHandler) {
    var sources = this;
    return new AnonymousObservable(function (o) {
      var exceptions = new Subject(),
        notifier = new Subject(),
        handled = notificationHandler(exceptions),
        notificationDisposable = handled.subscribe(notifier);

      var e = sources[$iterator$]();

      var isDisposed,
        lastException,
        subscription = new SerialDisposable();
      var cancelable = immediateScheduler.scheduleRecursive(function (self) {
        if (isDisposed) { return; }
        var currentItem = tryCatch(e.next).call(e);
        if (currentItem === errorObj) { return o.onError(currentItem.e); }

        if (currentItem.done) {
          if (lastException) {
            o.onError(lastException);
          } else {
            o.onCompleted();
          }
          return;
        }

        // Check if promise
        var currentValue = currentItem.value;
        isPromise(currentValue) && (currentValue = observableFromPromise(currentValue));

        var outer = new SingleAssignmentDisposable();
        var inner = new SingleAssignmentDisposable();
        subscription.setDisposable(new CompositeDisposable(inner, outer));
        outer.setDisposable(currentValue.subscribe(
          function(x) { o.onNext(x); },
          function (exn) {
            inner.setDisposable(notifier.subscribe(self, function(ex) {
              o.onError(ex);
            }, function() {
              o.onCompleted();
            }));

            exceptions.onNext(exn);
          },
          function() { o.onCompleted(); }));
      });

      return new CompositeDisposable(notificationDisposable, subscription, cancelable, disposableCreate(function () {
        isDisposed = true;
      }));
    });
  };
  
  var RepeatEnumerable = (function (__super__) {
    inherits(RepeatEnumerable, __super__);
    
    function RepeatEnumerable(v, c) {
      this.v = v;
      this.c = c == null ? -1 : c;
    }
    RepeatEnumerable.prototype[$iterator$] = function () {
      return new RepeatEnumerator(this); 
    };
    
    function RepeatEnumerator(p) {
      this.v = p.v;
      this.l = p.c;
    }
    RepeatEnumerator.prototype.next = function () {
      if (this.l === 0) { return doneEnumerator; }
      if (this.l > 0) { this.l--; }
      return { done: false, value: this.v }; 
    };
    
    return RepeatEnumerable;
  }(Enumerable));

  var enumerableRepeat = Enumerable.repeat = function (value, repeatCount) {
    return new RepeatEnumerable(value, repeatCount);
  };
  
  var OfEnumerable = (function(__super__) {
    inherits(OfEnumerable, __super__);
    function OfEnumerable(s, fn, thisArg) {
      this.s = s;
      this.fn = fn ? bindCallback(fn, thisArg, 3) : null;
    }
    OfEnumerable.prototype[$iterator$] = function () {
      return new OfEnumerator(this);
    };
    
    function OfEnumerator(p) {
      this.i = -1;
      this.s = p.s;
      this.l = this.s.length;
      this.fn = p.fn;
    }
    OfEnumerator.prototype.next = function () {
     return ++this.i < this.l ?
       { done: false, value: !this.fn ? this.s[this.i] : this.fn(this.s[this.i], this.i, this.s) } :
       doneEnumerator; 
    };
    
    return OfEnumerable;
  }(Enumerable));

  var enumerableOf = Enumerable.of = function (source, selector, thisArg) {
    return new OfEnumerable(source, selector, thisArg);
  };

  var ToArrayObservable = (function(__super__) {
    inherits(ToArrayObservable, __super__);
    function ToArrayObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    ToArrayObservable.prototype.subscribeCore = function(o) {
      return this.source.subscribe(new InnerObserver(o));
    };

    function InnerObserver(o) {
      this.o = o;
      this.a = [];
      this.isStopped = false;
    }
    InnerObserver.prototype.onNext = function (x) { if(!this.isStopped) { this.a.push(x); } };
    InnerObserver.prototype.onError = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
      }
    };
    InnerObserver.prototype.onCompleted = function () {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onNext(this.a);
        this.o.onCompleted();
      }
    };
    InnerObserver.prototype.dispose = function () { this.isStopped = true; }
    InnerObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
        return true;
      }
 
      return false;
    };

    return ToArrayObservable;
  }(ObservableBase));

  /**
  * Creates an array from an observable sequence.
  * @returns {Observable} An observable sequence containing a single element with a list containing all the elements of the source sequence.
  */
  observableProto.toArray = function () {
    return new ToArrayObservable(this);
  };

  /**
   *  Creates an observable sequence from a specified subscribe method implementation.
   * @example
   *  var res = Rx.Observable.create(function (observer) { return function () { } );
   *  var res = Rx.Observable.create(function (observer) { return Rx.Disposable.empty; } );
   *  var res = Rx.Observable.create(function (observer) { } );
   * @param {Function} subscribe Implementation of the resulting observable sequence's subscribe method, returning a function that will be wrapped in a Disposable.
   * @returns {Observable} The observable sequence with the specified implementation for the Subscribe method.
   */
  Observable.create = function (subscribe, parent) {
    return new AnonymousObservable(subscribe, parent);
  };

  /**
   *  Returns an observable sequence that invokes the specified factory function whenever a new observer subscribes.
   *
   * @example
   *  var res = Rx.Observable.defer(function () { return Rx.Observable.fromArray([1,2,3]); });
   * @param {Function} observableFactory Observable factory function to invoke for each observer that subscribes to the resulting sequence or Promise.
   * @returns {Observable} An observable sequence whose observers trigger an invocation of the given observable factory function.
   */
  var observableDefer = Observable.defer = function (observableFactory) {
    return new AnonymousObservable(function (observer) {
      var result;
      try {
        result = observableFactory();
      } catch (e) {
        return observableThrow(e).subscribe(observer);
      }
      isPromise(result) && (result = observableFromPromise(result));
      return result.subscribe(observer);
    });
  };

  var EmptyObservable = (function(__super__) {
    inherits(EmptyObservable, __super__);
    function EmptyObservable(scheduler) {
      this.scheduler = scheduler;
      __super__.call(this);
    }

    EmptyObservable.prototype.subscribeCore = function (observer) {
      var sink = new EmptySink(observer, this.scheduler);
      return sink.run();
    };

    function EmptySink(observer, scheduler) {
      this.observer = observer;
      this.scheduler = scheduler;
    }

    function scheduleItem(s, state) {
      state.onCompleted();
      return disposableEmpty;
    }

    EmptySink.prototype.run = function () {
      return this.scheduler.scheduleWithState(this.observer, scheduleItem);
    };

    return EmptyObservable;
  }(ObservableBase));

  var EMPTY_OBSERVABLE = new EmptyObservable(immediateScheduler);

  /**
   *  Returns an empty observable sequence, using the specified scheduler to send out the single OnCompleted message.
   *
   * @example
   *  var res = Rx.Observable.empty();
   *  var res = Rx.Observable.empty(Rx.Scheduler.timeout);
   * @param {Scheduler} [scheduler] Scheduler to send the termination call on.
   * @returns {Observable} An observable sequence with no elements.
   */
  var observableEmpty = Observable.empty = function (scheduler) {
    isScheduler(scheduler) || (scheduler = immediateScheduler);
    return scheduler === immediateScheduler ? EMPTY_OBSERVABLE : new EmptyObservable(scheduler);
  };

  var FromObservable = (function(__super__) {
    inherits(FromObservable, __super__);
    function FromObservable(iterable, mapper, scheduler) {
      this.iterable = iterable;
      this.mapper = mapper;
      this.scheduler = scheduler;
      __super__.call(this);
    }

    FromObservable.prototype.subscribeCore = function (o) {
      var sink = new FromSink(o, this);
      return sink.run();
    };

    return FromObservable;
  }(ObservableBase));

  var FromSink = (function () {
    function FromSink(o, parent) {
      this.o = o;
      this.parent = parent;
    }

    FromSink.prototype.run = function () {
      var list = Object(this.parent.iterable),
          it = getIterable(list),
          o = this.o,
          mapper = this.parent.mapper;

      function loopRecursive(i, recurse) {
        var next = tryCatch(it.next).call(it);
        if (next === errorObj) { return o.onError(next.e); }
        if (next.done) { return o.onCompleted(); }

        var result = next.value;

        if (isFunction(mapper)) {
          result = tryCatch(mapper)(result, i);
          if (result === errorObj) { return o.onError(result.e); }
        }

        o.onNext(result);
        recurse(i + 1);
      }

      return this.parent.scheduler.scheduleRecursiveWithState(0, loopRecursive);
    };

    return FromSink;
  }());

  var maxSafeInteger = Math.pow(2, 53) - 1;

  function StringIterable(s) {
    this._s = s;
  }

  StringIterable.prototype[$iterator$] = function () {
    return new StringIterator(this._s);
  };

  function StringIterator(s) {
    this._s = s;
    this._l = s.length;
    this._i = 0;
  }

  StringIterator.prototype[$iterator$] = function () {
    return this;
  };

  StringIterator.prototype.next = function () {
    return this._i < this._l ? { done: false, value: this._s.charAt(this._i++) } : doneEnumerator;
  };

  function ArrayIterable(a) {
    this._a = a;
  }

  ArrayIterable.prototype[$iterator$] = function () {
    return new ArrayIterator(this._a);
  };

  function ArrayIterator(a) {
    this._a = a;
    this._l = toLength(a);
    this._i = 0;
  }

  ArrayIterator.prototype[$iterator$] = function () {
    return this;
  };

  ArrayIterator.prototype.next = function () {
    return this._i < this._l ? { done: false, value: this._a[this._i++] } : doneEnumerator;
  };

  function numberIsFinite(value) {
    return typeof value === 'number' && root.isFinite(value);
  }

  function isNan(n) {
    return n !== n;
  }

  function getIterable(o) {
    var i = o[$iterator$], it;
    if (!i && typeof o === 'string') {
      it = new StringIterable(o);
      return it[$iterator$]();
    }
    if (!i && o.length !== undefined) {
      it = new ArrayIterable(o);
      return it[$iterator$]();
    }
    if (!i) { throw new TypeError('Object is not iterable'); }
    return o[$iterator$]();
  }

  function sign(value) {
    var number = +value;
    if (number === 0) { return number; }
    if (isNaN(number)) { return number; }
    return number < 0 ? -1 : 1;
  }

  function toLength(o) {
    var len = +o.length;
    if (isNaN(len)) { return 0; }
    if (len === 0 || !numberIsFinite(len)) { return len; }
    len = sign(len) * Math.floor(Math.abs(len));
    if (len <= 0) { return 0; }
    if (len > maxSafeInteger) { return maxSafeInteger; }
    return len;
  }

  /**
  * This method creates a new Observable sequence from an array-like or iterable object.
  * @param {Any} arrayLike An array-like or iterable object to convert to an Observable sequence.
  * @param {Function} [mapFn] Map function to call on every element of the array.
  * @param {Any} [thisArg] The context to use calling the mapFn if provided.
  * @param {Scheduler} [scheduler] Optional scheduler to use for scheduling.  If not provided, defaults to Scheduler.currentThread.
  */
  var observableFrom = Observable.from = function (iterable, mapFn, thisArg, scheduler) {
    if (iterable == null) {
      throw new Error('iterable cannot be null.')
    }
    if (mapFn && !isFunction(mapFn)) {
      throw new Error('mapFn when provided must be a function');
    }
    if (mapFn) {
      var mapper = bindCallback(mapFn, thisArg, 2);
    }
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new FromObservable(iterable, mapper, scheduler);
  }

  var FromArrayObservable = (function(__super__) {
    inherits(FromArrayObservable, __super__);
    function FromArrayObservable(args, scheduler) {
      this.args = args;
      this.scheduler = scheduler;
      __super__.call(this);
    }

    FromArrayObservable.prototype.subscribeCore = function (observer) {
      var sink = new FromArraySink(observer, this);
      return sink.run();
    };

    return FromArrayObservable;
  }(ObservableBase));

  function FromArraySink(observer, parent) {
    this.observer = observer;
    this.parent = parent;
  }

  FromArraySink.prototype.run = function () {
    var observer = this.observer, args = this.parent.args, len = args.length;
    function loopRecursive(i, recurse) {
      if (i < len) {
        observer.onNext(args[i]);
        recurse(i + 1);
      } else {
        observer.onCompleted();
      }
    }

    return this.parent.scheduler.scheduleRecursiveWithState(0, loopRecursive);
  };

  /**
  *  Converts an array to an observable sequence, using an optional scheduler to enumerate the array.
  * @deprecated use Observable.from or Observable.of
  * @param {Scheduler} [scheduler] Scheduler to run the enumeration of the input sequence on.
  * @returns {Observable} The observable sequence whose elements are pulled from the given enumerable sequence.
  */
  var observableFromArray = Observable.fromArray = function (array, scheduler) {
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new FromArrayObservable(array, scheduler)
  };

  var NeverObservable = (function(__super__) {
    inherits(NeverObservable, __super__);
    function NeverObservable() {
      __super__.call(this);
    }

    NeverObservable.prototype.subscribeCore = function (observer) {
      return disposableEmpty;
    };

    return NeverObservable;
  }(ObservableBase));

  var NEVER_OBSERVABLE = new NeverObservable();

  /**
   * Returns a non-terminating observable sequence, which can be used to denote an infinite duration (e.g. when using reactive joins).
   * @returns {Observable} An observable sequence whose observers will never get called.
   */
  var observableNever = Observable.never = function () {
    return NEVER_OBSERVABLE;
  };

  function observableOf (scheduler, array) {
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new FromArrayObservable(array, scheduler);
  }

  /**
  *  This method creates a new Observable instance with a variable number of arguments, regardless of number or type of the arguments.
  * @returns {Observable} The observable sequence whose elements are pulled from the given arguments.
  */
  Observable.of = function () {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return new FromArrayObservable(args, currentThreadScheduler);
  };

  /**
  *  This method creates a new Observable instance with a variable number of arguments, regardless of number or type of the arguments.
  * @param {Scheduler} scheduler A scheduler to use for scheduling the arguments.
  * @returns {Observable} The observable sequence whose elements are pulled from the given arguments.
  */
  Observable.ofWithScheduler = function (scheduler) {
    var len = arguments.length, args = new Array(len - 1);
    for(var i = 1; i < len; i++) { args[i - 1] = arguments[i]; }
    return new FromArrayObservable(args, scheduler);
  };

  var PairsObservable = (function(__super__) {
    inherits(PairsObservable, __super__);
    function PairsObservable(obj, scheduler) {
      this.obj = obj;
      this.keys = Object.keys(obj);
      this.scheduler = scheduler;
      __super__.call(this);
    }

    PairsObservable.prototype.subscribeCore = function (observer) {
      var sink = new PairsSink(observer, this);
      return sink.run();
    };

    return PairsObservable;
  }(ObservableBase));

  function PairsSink(observer, parent) {
    this.observer = observer;
    this.parent = parent;
  }

  PairsSink.prototype.run = function () {
    var observer = this.observer, obj = this.parent.obj, keys = this.parent.keys, len = keys.length;
    function loopRecursive(i, recurse) {
      if (i < len) {
        var key = keys[i];
        observer.onNext([key, obj[key]]);
        recurse(i + 1);
      } else {
        observer.onCompleted();
      }
    }

    return this.parent.scheduler.scheduleRecursiveWithState(0, loopRecursive);
  };

  /**
   * Convert an object into an observable sequence of [key, value] pairs.
   * @param {Object} obj The object to inspect.
   * @param {Scheduler} [scheduler] Scheduler to run the enumeration of the input sequence on.
   * @returns {Observable} An observable sequence of [key, value] pairs from the object.
   */
  Observable.pairs = function (obj, scheduler) {
    scheduler || (scheduler = currentThreadScheduler);
    return new PairsObservable(obj, scheduler);
  };

    var RangeObservable = (function(__super__) {
    inherits(RangeObservable, __super__);
    function RangeObservable(start, count, scheduler) {
      this.start = start;
      this.rangeCount = count;
      this.scheduler = scheduler;
      __super__.call(this);
    }

    RangeObservable.prototype.subscribeCore = function (observer) {
      var sink = new RangeSink(observer, this);
      return sink.run();
    };

    return RangeObservable;
  }(ObservableBase));

  var RangeSink = (function () {
    function RangeSink(observer, parent) {
      this.observer = observer;
      this.parent = parent;
    }

    RangeSink.prototype.run = function () {
      var start = this.parent.start, count = this.parent.rangeCount, observer = this.observer;
      function loopRecursive(i, recurse) {
        if (i < count) {
          observer.onNext(start + i);
          recurse(i + 1);
        } else {
          observer.onCompleted();
        }
      }

      return this.parent.scheduler.scheduleRecursiveWithState(0, loopRecursive);
    };

    return RangeSink;
  }());

  /**
  *  Generates an observable sequence of integral numbers within a specified range, using the specified scheduler to send out observer messages.
  * @param {Number} start The value of the first integer in the sequence.
  * @param {Number} count The number of sequential integers to generate.
  * @param {Scheduler} [scheduler] Scheduler to run the generator loop on. If not specified, defaults to Scheduler.currentThread.
  * @returns {Observable} An observable sequence that contains a range of sequential integral numbers.
  */
  Observable.range = function (start, count, scheduler) {
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new RangeObservable(start, count, scheduler);
  };

  var RepeatObservable = (function(__super__) {
    inherits(RepeatObservable, __super__);
    function RepeatObservable(value, repeatCount, scheduler) {
      this.value = value;
      this.repeatCount = repeatCount == null ? -1 : repeatCount;
      this.scheduler = scheduler;
      __super__.call(this);
    }

    RepeatObservable.prototype.subscribeCore = function (observer) {
      var sink = new RepeatSink(observer, this);
      return sink.run();
    };

    return RepeatObservable;
  }(ObservableBase));

  function RepeatSink(observer, parent) {
    this.observer = observer;
    this.parent = parent;
  }

  RepeatSink.prototype.run = function () {
    var observer = this.observer, value = this.parent.value;
    function loopRecursive(i, recurse) {
      if (i === -1 || i > 0) {
        observer.onNext(value);
        i > 0 && i--;
      }
      if (i === 0) { return observer.onCompleted(); }
      recurse(i);
    }

    return this.parent.scheduler.scheduleRecursiveWithState(this.parent.repeatCount, loopRecursive);
  };

  /**
   *  Generates an observable sequence that repeats the given element the specified number of times, using the specified scheduler to send out observer messages.
   * @param {Mixed} value Element to repeat.
   * @param {Number} repeatCount [Optiona] Number of times to repeat the element. If not specified, repeats indefinitely.
   * @param {Scheduler} scheduler Scheduler to run the producer loop on. If not specified, defaults to Scheduler.immediate.
   * @returns {Observable} An observable sequence that repeats the given element the specified number of times.
   */
  Observable.repeat = function (value, repeatCount, scheduler) {
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new RepeatObservable(value, repeatCount, scheduler);
  };

  var JustObservable = (function(__super__) {
    inherits(JustObservable, __super__);
    function JustObservable(value, scheduler) {
      this.value = value;
      this.scheduler = scheduler;
      __super__.call(this);
    }

    JustObservable.prototype.subscribeCore = function (observer) {
      var sink = new JustSink(observer, this.value, this.scheduler);
      return sink.run();
    };

    function JustSink(observer, value, scheduler) {
      this.observer = observer;
      this.value = value;
      this.scheduler = scheduler;
    }

    function scheduleItem(s, state) {
      var value = state[0], observer = state[1];
      observer.onNext(value);
      observer.onCompleted();
      return disposableEmpty;
    }

    JustSink.prototype.run = function () {
      var state = [this.value, this.observer];
      return this.scheduler === immediateScheduler ?
        scheduleItem(null, state) :
        this.scheduler.scheduleWithState(state, scheduleItem);
    };

    return JustObservable;
  }(ObservableBase));

  /**
   *  Returns an observable sequence that contains a single element, using the specified scheduler to send out observer messages.
   *  There is an alias called 'just' or browsers <IE9.
   * @param {Mixed} value Single element in the resulting observable sequence.
   * @param {Scheduler} scheduler Scheduler to send the single element on. If not specified, defaults to Scheduler.immediate.
   * @returns {Observable} An observable sequence containing the single specified element.
   */
  var observableReturn = Observable['return'] = Observable.just = function (value, scheduler) {
    isScheduler(scheduler) || (scheduler = immediateScheduler);
    return new JustObservable(value, scheduler);
  };

  var ThrowObservable = (function(__super__) {
    inherits(ThrowObservable, __super__);
    function ThrowObservable(error, scheduler) {
      this.error = error;
      this.scheduler = scheduler;
      __super__.call(this);
    }

    ThrowObservable.prototype.subscribeCore = function (o) {
      var sink = new ThrowSink(o, this);
      return sink.run();
    };

    function ThrowSink(o, p) {
      this.o = o;
      this.p = p;
    }

    function scheduleItem(s, state) {
      var e = state[0], o = state[1];
      o.onError(e);
    }

    ThrowSink.prototype.run = function () {
      return this.p.scheduler.scheduleWithState([this.p.error, this.o], scheduleItem);
    };

    return ThrowObservable;
  }(ObservableBase));

  /**
   *  Returns an observable sequence that terminates with an exception, using the specified scheduler to send out the single onError message.
   *  There is an alias to this method called 'throwError' for browsers <IE9.
   * @param {Mixed} error An object used for the sequence's termination.
   * @param {Scheduler} scheduler Scheduler to send the exceptional termination call on. If not specified, defaults to Scheduler.immediate.
   * @returns {Observable} The observable sequence that terminates exceptionally with the specified exception object.
   */
  var observableThrow = Observable['throw'] = function (error, scheduler) {
    isScheduler(scheduler) || (scheduler = immediateScheduler);
    return new ThrowObservable(error, scheduler);
  };

  var CatchObserver = (function(__super__) {
    inherits(CatchObserver, __super__);
    function CatchObserver(o, s, fn) {
      this._o = o;
      this._s = s;
      this._fn = fn;
      __super__.call(this);
    }

    CatchObserver.prototype.next = function (x) { this._o.onNext(x); };
    CatchObserver.prototype.completed = function () { return this._o.onCompleted(); };
    CatchObserver.prototype.error = function (e) {
      var result = tryCatch(this._fn)(e);
      if (result === errorObj) { return this._o.onError(result.e); }
      isPromise(result) && (result = observableFromPromise(result));

      var d = new SingleAssignmentDisposable();
      this._s.setDisposable(d);
      d.setDisposable(result.subscribe(this._o));
    };

    return CatchObserver;
  }(AbstractObserver));

  function observableCatchHandler(source, handler) {
    return new AnonymousObservable(function (o) {
      var d1 = new SingleAssignmentDisposable(), subscription = new SerialDisposable();
      subscription.setDisposable(d1);
      d1.setDisposable(source.subscribe(new CatchObserver(o, subscription, handler)));
      return subscription;
    }, source);
  }

  /**
   * Continues an observable sequence that is terminated by an exception with the next observable sequence.
   * @param {Mixed} handlerOrSecond Exception handler function that returns an observable sequence given the error that occurred in the first sequence, or a second observable sequence used to produce results when an error occurred in the first sequence.
   * @returns {Observable} An observable sequence containing the first sequence's elements, followed by the elements of the handler sequence in case an exception occurred.
   */
  observableProto['catch'] = function (handlerOrSecond) {
    return isFunction(handlerOrSecond) ? observableCatchHandler(this, handlerOrSecond) : observableCatch([this, handlerOrSecond]);
  };

  /**
   * Continues an observable sequence that is terminated by an exception with the next observable sequence.
   * @param {Array | Arguments} args Arguments or an array to use as the next sequence if an error occurs.
   * @returns {Observable} An observable sequence containing elements from consecutive source sequences until a source sequence terminates successfully.
   */
  var observableCatch = Observable['catch'] = function () {
    var items;
    if (Array.isArray(arguments[0])) {
      items = arguments[0];
    } else {
      var len = arguments.length;
      items = new Array(len);
      for(var i = 0; i < len; i++) { items[i] = arguments[i]; }
    }
    return enumerableOf(items).catchError();
  };

  /**
   * Merges the specified observable sequences into one observable sequence by using the selector function whenever any of the observable sequences or Promises produces an element.
   * This can be in the form of an argument list of observables or an array.
   *
   * @example
   * 1 - obs = observable.combineLatest(obs1, obs2, obs3, function (o1, o2, o3) { return o1 + o2 + o3; });
   * 2 - obs = observable.combineLatest([obs1, obs2, obs3], function (o1, o2, o3) { return o1 + o2 + o3; });
   * @returns {Observable} An observable sequence containing the result of combining elements of the sources using the specified result selector function.
   */
  observableProto.combineLatest = function () {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    if (Array.isArray(args[0])) {
      args[0].unshift(this);
    } else {
      args.unshift(this);
    }
    return combineLatest.apply(this, args);
  };

  function falseFactory() { return false; }
  function argumentsToArray() {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return args;
  }

  /**
   * Merges the specified observable sequences into one observable sequence by using the selector function whenever any of the observable sequences or Promises produces an element.
   *
   * @example
   * 1 - obs = Rx.Observable.combineLatest(obs1, obs2, obs3, function (o1, o2, o3) { return o1 + o2 + o3; });
   * 2 - obs = Rx.Observable.combineLatest([obs1, obs2, obs3], function (o1, o2, o3) { return o1 + o2 + o3; });
   * @returns {Observable} An observable sequence containing the result of combining elements of the sources using the specified result selector function.
   */
  var combineLatest = Observable.combineLatest = function () {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    var resultSelector = isFunction(args[len - 1]) ? args.pop() : argumentsToArray;
    Array.isArray(args[0]) && (args = args[0]);

    return new AnonymousObservable(function (o) {
      var n = args.length,
        hasValue = arrayInitialize(n, falseFactory),
        hasValueAll = false,
        isDone = arrayInitialize(n, falseFactory),
        values = new Array(n);

      function next(i) {
        hasValue[i] = true;
        if (hasValueAll || (hasValueAll = hasValue.every(identity))) {
          try {
            var res = resultSelector.apply(null, values);
          } catch (e) {
            return o.onError(e);
          }
          o.onNext(res);
        } else if (isDone.filter(function (x, j) { return j !== i; }).every(identity)) {
          o.onCompleted();
        }
      }

      function done (i) {
        isDone[i] = true;
        isDone.every(identity) && o.onCompleted();
      }

      var subscriptions = new Array(n);
      for (var idx = 0; idx < n; idx++) {
        (function (i) {
          var source = args[i], sad = new SingleAssignmentDisposable();
          isPromise(source) && (source = observableFromPromise(source));
          sad.setDisposable(source.subscribe(function (x) {
              values[i] = x;
              next(i);
            },
            function(e) { o.onError(e); },
            function () { done(i); }
          ));
          subscriptions[i] = sad;
        }(idx));
      }

      return new CompositeDisposable(subscriptions);
    }, this);
  };

  /**
   * Concatenates all the observable sequences.  This takes in either an array or variable arguments to concatenate.
   * @returns {Observable} An observable sequence that contains the elements of each given sequence, in sequential order.
   */
  observableProto.concat = function () {
    for(var args = [], i = 0, len = arguments.length; i < len; i++) { args.push(arguments[i]); }
    args.unshift(this);
    return observableConcat.apply(null, args);
  };

  var ConcatObservable = (function(__super__) {
    inherits(ConcatObservable, __super__);
    function ConcatObservable(sources) {
      this.sources = sources;
      __super__.call(this);
    }

    ConcatObservable.prototype.subscribeCore = function(o) {
      var sink = new ConcatSink(this.sources, o);
      return sink.run();
    };

    function ConcatSink(sources, o) {
      this.sources = sources;
      this.o = o;
    }
    ConcatSink.prototype.run = function () {
      var isDisposed, subscription = new SerialDisposable(), sources = this.sources, length = sources.length, o = this.o;
      var cancelable = immediateScheduler.scheduleRecursiveWithState(0, function (i, self) {
        if (isDisposed) { return; }
        if (i === length) {
          return o.onCompleted();
        }

        // Check if promise
        var currentValue = sources[i];
        isPromise(currentValue) && (currentValue = observableFromPromise(currentValue));

        var d = new SingleAssignmentDisposable();
        subscription.setDisposable(d);
        d.setDisposable(currentValue.subscribe(
          function (x) { o.onNext(x); },
          function (e) { o.onError(e); },
          function () { self(i + 1); }
        ));
      });

      return new CompositeDisposable(subscription, cancelable, disposableCreate(function () {
        isDisposed = true;
      }));
    };


    return ConcatObservable;
  }(ObservableBase));

  /**
   * Concatenates all the observable sequences.
   * @param {Array | Arguments} args Arguments or an array to concat to the observable sequence.
   * @returns {Observable} An observable sequence that contains the elements of each given sequence, in sequential order.
   */
  var observableConcat = Observable.concat = function () {
    var args;
    if (Array.isArray(arguments[0])) {
      args = arguments[0];
    } else {
      args = new Array(arguments.length);
      for(var i = 0, len = arguments.length; i < len; i++) { args[i] = arguments[i]; }
    }
    return new ConcatObservable(args);
  };

  /**
   * Concatenates an observable sequence of observable sequences.
   * @returns {Observable} An observable sequence that contains the elements of each observed inner sequence, in sequential order.
   */
  observableProto.concatAll = function () {
    return this.merge(1);
  };

  var MergeObservable = (function (__super__) {
    inherits(MergeObservable, __super__);

    function MergeObservable(source, maxConcurrent) {
      this.source = source;
      this.maxConcurrent = maxConcurrent;
      __super__.call(this);
    }

    MergeObservable.prototype.subscribeCore = function(observer) {
      var g = new CompositeDisposable();
      g.add(this.source.subscribe(new MergeObserver(observer, this.maxConcurrent, g)));
      return g;
    };

    return MergeObservable;

  }(ObservableBase));

  var MergeObserver = (function () {
    function MergeObserver(o, max, g) {
      this.o = o;
      this.max = max;
      this.g = g;
      this.done = false;
      this.q = [];
      this.activeCount = 0;
      this.isStopped = false;
    }
    MergeObserver.prototype.handleSubscribe = function (xs) {
      var sad = new SingleAssignmentDisposable();
      this.g.add(sad);
      isPromise(xs) && (xs = observableFromPromise(xs));
      sad.setDisposable(xs.subscribe(new InnerObserver(this, sad)));
    };
    MergeObserver.prototype.onNext = function (innerSource) {
      if (this.isStopped) { return; }
        if(this.activeCount < this.max) {
          this.activeCount++;
          this.handleSubscribe(innerSource);
        } else {
          this.q.push(innerSource);
        }
      };
      MergeObserver.prototype.onError = function (e) {
        if (!this.isStopped) {
          this.isStopped = true;
          this.o.onError(e);
        }
      };
      MergeObserver.prototype.onCompleted = function () {
        if (!this.isStopped) {
          this.isStopped = true;
          this.done = true;
          this.activeCount === 0 && this.o.onCompleted();
        }
      };
      MergeObserver.prototype.dispose = function() { this.isStopped = true; };
      MergeObserver.prototype.fail = function (e) {
        if (!this.isStopped) {
          this.isStopped = true;
          this.o.onError(e);
          return true;
        }

        return false;
      };

      function InnerObserver(parent, sad) {
        this.parent = parent;
        this.sad = sad;
        this.isStopped = false;
      }
      InnerObserver.prototype.onNext = function (x) { if(!this.isStopped) { this.parent.o.onNext(x); } };
      InnerObserver.prototype.onError = function (e) {
        if (!this.isStopped) {
          this.isStopped = true;
          this.parent.o.onError(e);
        }
      };
      InnerObserver.prototype.onCompleted = function () {
        if(!this.isStopped) {
          this.isStopped = true;
          var parent = this.parent;
          parent.g.remove(this.sad);
          if (parent.q.length > 0) {
            parent.handleSubscribe(parent.q.shift());
          } else {
            parent.activeCount--;
            parent.done && parent.activeCount === 0 && parent.o.onCompleted();
          }
        }
      };
      InnerObserver.prototype.dispose = function() { this.isStopped = true; };
      InnerObserver.prototype.fail = function (e) {
        if (!this.isStopped) {
          this.isStopped = true;
          this.parent.o.onError(e);
          return true;
        }

        return false;
      };

      return MergeObserver;
  }());





  /**
  * Merges an observable sequence of observable sequences into an observable sequence, limiting the number of concurrent subscriptions to inner sequences.
  * Or merges two observable sequences into a single observable sequence.
  *
  * @example
  * 1 - merged = sources.merge(1);
  * 2 - merged = source.merge(otherSource);
  * @param {Mixed} [maxConcurrentOrOther] Maximum number of inner observable sequences being subscribed to concurrently or the second observable sequence.
  * @returns {Observable} The observable sequence that merges the elements of the inner sequences.
  */
  observableProto.merge = function (maxConcurrentOrOther) {
    return typeof maxConcurrentOrOther !== 'number' ?
      observableMerge(this, maxConcurrentOrOther) :
      new MergeObservable(this, maxConcurrentOrOther);
  };

  /**
   * Merges all the observable sequences into a single observable sequence.
   * The scheduler is optional and if not specified, the immediate scheduler is used.
   * @returns {Observable} The observable sequence that merges the elements of the observable sequences.
   */
  var observableMerge = Observable.merge = function () {
    var scheduler, sources = [], i, len = arguments.length;
    if (!arguments[0]) {
      scheduler = immediateScheduler;
      for(i = 1; i < len; i++) { sources.push(arguments[i]); }
    } else if (isScheduler(arguments[0])) {
      scheduler = arguments[0];
      for(i = 1; i < len; i++) { sources.push(arguments[i]); }
    } else {
      scheduler = immediateScheduler;
      for(i = 0; i < len; i++) { sources.push(arguments[i]); }
    }
    if (Array.isArray(sources[0])) {
      sources = sources[0];
    }
    return observableOf(scheduler, sources).mergeAll();
  };

  var CompositeError = Rx.CompositeError = function(errors) {
    this.name = "NotImplementedError";
    this.innerErrors = errors;
    this.message = 'This contains multiple errors. Check the innerErrors';
    Error.call(this);
  }
  CompositeError.prototype = Error.prototype;

  /**
  * Flattens an Observable that emits Observables into one Observable, in a way that allows an Observer to
  * receive all successfully emitted items from all of the source Observables without being interrupted by
  * an error notification from one of them.
  *
  * This behaves like Observable.prototype.mergeAll except that if any of the merged Observables notify of an
  * error via the Observer's onError, mergeDelayError will refrain from propagating that
  * error notification until all of the merged Observables have finished emitting items.
  * @param {Array | Arguments} args Arguments or an array to merge.
  * @returns {Observable} an Observable that emits all of the items emitted by the Observables emitted by the Observable
  */
  Observable.mergeDelayError = function() {
    var args;
    if (Array.isArray(arguments[0])) {
      args = arguments[0];
    } else {
      var len = arguments.length;
      args = new Array(len);
      for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    }
    var source = observableOf(null, args);

    return new AnonymousObservable(function (o) {
      var group = new CompositeDisposable(),
        m = new SingleAssignmentDisposable(),
        isStopped = false,
        errors = [];

      function setCompletion() {
        if (errors.length === 0) {
          o.onCompleted();
        } else if (errors.length === 1) {
          o.onError(errors[0]);
        } else {
          o.onError(new CompositeError(errors));
        }
      }

      group.add(m);

      m.setDisposable(source.subscribe(
        function (innerSource) {
          var innerSubscription = new SingleAssignmentDisposable();
          group.add(innerSubscription);

          // Check for promises support
          isPromise(innerSource) && (innerSource = observableFromPromise(innerSource));

          innerSubscription.setDisposable(innerSource.subscribe(
            function (x) { o.onNext(x); },
            function (e) {
              errors.push(e);
              group.remove(innerSubscription);
              isStopped && group.length === 1 && setCompletion();
            },
            function () {
              group.remove(innerSubscription);
              isStopped && group.length === 1 && setCompletion();
          }));
        },
        function (e) {
          errors.push(e);
          isStopped = true;
          group.length === 1 && setCompletion();
        },
        function () {
          isStopped = true;
          group.length === 1 && setCompletion();
        }));
      return group;
    });
  };

  var MergeAllObservable = (function (__super__) {
    inherits(MergeAllObservable, __super__);

    function MergeAllObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    MergeAllObservable.prototype.subscribeCore = function (observer) {
      var g = new CompositeDisposable(), m = new SingleAssignmentDisposable();
      g.add(m);
      m.setDisposable(this.source.subscribe(new MergeAllObserver(observer, g)));
      return g;
    };

    function MergeAllObserver(o, g) {
      this.o = o;
      this.g = g;
      this.isStopped = false;
      this.done = false;
    }
    MergeAllObserver.prototype.onNext = function(innerSource) {
      if(this.isStopped) { return; }
      var sad = new SingleAssignmentDisposable();
      this.g.add(sad);

      isPromise(innerSource) && (innerSource = observableFromPromise(innerSource));

      sad.setDisposable(innerSource.subscribe(new InnerObserver(this, sad)));
    };
    MergeAllObserver.prototype.onError = function (e) {
      if(!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
      }
    };
    MergeAllObserver.prototype.onCompleted = function () {
      if(!this.isStopped) {
        this.isStopped = true;
        this.done = true;
        this.g.length === 1 && this.o.onCompleted();
      }
    };
    MergeAllObserver.prototype.dispose = function() { this.isStopped = true; };
    MergeAllObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
        return true;
      }

      return false;
    };

    function InnerObserver(parent, sad) {
      this.parent = parent;
      this.sad = sad;
      this.isStopped = false;
    }
    InnerObserver.prototype.onNext = function (x) { if (!this.isStopped) { this.parent.o.onNext(x); } };
    InnerObserver.prototype.onError = function (e) {
      if(!this.isStopped) {
        this.isStopped = true;
        this.parent.o.onError(e);
      }
    };
    InnerObserver.prototype.onCompleted = function () {
      if(!this.isStopped) {
        var parent = this.parent;
        this.isStopped = true;
        parent.g.remove(this.sad);
        parent.done && parent.g.length === 1 && parent.o.onCompleted();
      }
    };
    InnerObserver.prototype.dispose = function() { this.isStopped = true; };
    InnerObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.parent.o.onError(e);
        return true;
      }

      return false;
    };

    return MergeAllObservable;
  }(ObservableBase));

  /**
  * Merges an observable sequence of observable sequences into an observable sequence.
  * @returns {Observable} The observable sequence that merges the elements of the inner sequences.
  */
  observableProto.mergeAll = function () {
    return new MergeAllObservable(this);
  };

  /**
   * Returns the values from the source observable sequence only after the other observable sequence produces a value.
   * @param {Observable | Promise} other The observable sequence or Promise that triggers propagation of elements of the source sequence.
   * @returns {Observable} An observable sequence containing the elements of the source sequence starting from the point the other sequence triggered propagation.
   */
  observableProto.skipUntil = function (other) {
    var source = this;
    return new AnonymousObservable(function (o) {
      var isOpen = false;
      var disposables = new CompositeDisposable(source.subscribe(function (left) {
        isOpen && o.onNext(left);
      }, function (e) { o.onError(e); }, function () {
        isOpen && o.onCompleted();
      }));

      isPromise(other) && (other = observableFromPromise(other));

      var rightSubscription = new SingleAssignmentDisposable();
      disposables.add(rightSubscription);
      rightSubscription.setDisposable(other.subscribe(function () {
        isOpen = true;
        rightSubscription.dispose();
      }, function (e) { o.onError(e); }, function () {
        rightSubscription.dispose();
      }));

      return disposables;
    }, source);
  };

  var SwitchObservable = (function(__super__) {
    inherits(SwitchObservable, __super__);
    function SwitchObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    SwitchObservable.prototype.subscribeCore = function (o) {
      var inner = new SerialDisposable(), s = this.source.subscribe(new SwitchObserver(o, inner));
      return new CompositeDisposable(s, inner);
    };

    function SwitchObserver(o, inner) {
      this.o = o;
      this.inner = inner;
      this.stopped = false;
      this.latest = 0;
      this.hasLatest = false;
      this.isStopped = false;
    }
    SwitchObserver.prototype.onNext = function (innerSource) {
      if (this.isStopped) { return; }
      var d = new SingleAssignmentDisposable(), id = ++this.latest;
      this.hasLatest = true;
      this.inner.setDisposable(d);
      isPromise(innerSource) && (innerSource = observableFromPromise(innerSource));
      d.setDisposable(innerSource.subscribe(new InnerObserver(this, id)));
    };
    SwitchObserver.prototype.onError = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
      }
    };
    SwitchObserver.prototype.onCompleted = function () {
      if (!this.isStopped) {
        this.isStopped = true;
        this.stopped = true;
        !this.hasLatest && this.o.onCompleted();
      }
    };
    SwitchObserver.prototype.dispose = function () { this.isStopped = true; };
    SwitchObserver.prototype.fail = function (e) {
      if(!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
        return true;
      }
      return false;
    };

    function InnerObserver(parent, id) {
      this.parent = parent;
      this.id = id;
      this.isStopped = false;
    }
    InnerObserver.prototype.onNext = function (x) {
      if (this.isStopped) { return; }
      this.parent.latest === this.id && this.parent.o.onNext(x);
    };
    InnerObserver.prototype.onError = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.parent.latest === this.id && this.parent.o.onError(e);
      }
    };
    InnerObserver.prototype.onCompleted = function () {
      if (!this.isStopped) {
        this.isStopped = true;
        if (this.parent.latest === this.id) {
          this.parent.hasLatest = false;
          this.parent.isStopped && this.parent.o.onCompleted();
        }
      }
    };
    InnerObserver.prototype.dispose = function () { this.isStopped = true; }
    InnerObserver.prototype.fail = function (e) {
      if(!this.isStopped) {
        this.isStopped = true;
        this.parent.o.onError(e);
        return true;
      }
      return false;
    };

    return SwitchObservable;
  }(ObservableBase));

  /**
  * Transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.
  * @returns {Observable} The observable sequence that at any point in time produces the elements of the most recent inner observable sequence that has been received.
  */
  observableProto['switch'] = observableProto.switchLatest = function () {
    return new SwitchObservable(this);
  };

  var TakeUntilObservable = (function(__super__) {
    inherits(TakeUntilObservable, __super__);

    function TakeUntilObservable(source, other) {
      this.source = source;
      this.other = isPromise(other) ? observableFromPromise(other) : other;
      __super__.call(this);
    }

    TakeUntilObservable.prototype.subscribeCore = function(o) {
      return new CompositeDisposable(
        this.source.subscribe(o),
        this.other.subscribe(new InnerObserver(o))
      );
    };

    function InnerObserver(o) {
      this.o = o;
      this.isStopped = false;
    }
    InnerObserver.prototype.onNext = function (x) {
      if (this.isStopped) { return; }
      this.o.onCompleted();
    };
    InnerObserver.prototype.onError = function (err) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(err);
      }
    };
    InnerObserver.prototype.onCompleted = function () {
      !this.isStopped && (this.isStopped = true);
    };
    InnerObserver.prototype.dispose = function() { this.isStopped = true; };
    InnerObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
        return true;
      }
      return false;
    };

    return TakeUntilObservable;
  }(ObservableBase));

  /**
   * Returns the values from the source observable sequence until the other observable sequence produces a value.
   * @param {Observable | Promise} other Observable sequence or Promise that terminates propagation of elements of the source sequence.
   * @returns {Observable} An observable sequence containing the elements of the source sequence up to the point the other sequence interrupted further propagation.
   */
  observableProto.takeUntil = function (other) {
    return new TakeUntilObservable(this, other);
  };

  function falseFactory() { return false; }

  /**
   * Merges the specified observable sequences into one observable sequence by using the selector function only when the (first) source observable sequence produces an element.
   * @returns {Observable} An observable sequence containing the result of combining elements of the sources using the specified result selector function.
   */
  observableProto.withLatestFrom = function () {
    var len = arguments.length, args = new Array(len)
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    var resultSelector = args.pop(), source = this;
    Array.isArray(args[0]) && (args = args[0]);

    return new AnonymousObservable(function (observer) {
      var n = args.length,
        hasValue = arrayInitialize(n, falseFactory),
        hasValueAll = false,
        values = new Array(n);

      var subscriptions = new Array(n + 1);
      for (var idx = 0; idx < n; idx++) {
        (function (i) {
          var other = args[i], sad = new SingleAssignmentDisposable();
          isPromise(other) && (other = observableFromPromise(other));
          sad.setDisposable(other.subscribe(function (x) {
            values[i] = x;
            hasValue[i] = true;
            hasValueAll = hasValue.every(identity);
          }, function (e) { observer.onError(e); }, noop));
          subscriptions[i] = sad;
        }(idx));
      }

      var sad = new SingleAssignmentDisposable();
      sad.setDisposable(source.subscribe(function (x) {
        var allValues = [x].concat(values);
        if (!hasValueAll) { return; }
        var res = tryCatch(resultSelector).apply(null, allValues);
        if (res === errorObj) { return observer.onError(res.e); }
        observer.onNext(res);
      }, function (e) { observer.onError(e); }, function () {
        observer.onCompleted();
      }));
      subscriptions[n] = sad;

      return new CompositeDisposable(subscriptions);
    }, this);
  };

  function falseFactory() { return false; }
  function emptyArrayFactory() { return []; }
  function argumentsToArray() {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return args;
  }

  /**
   * Merges the specified observable sequences into one observable sequence by using the selector function whenever all of the observable sequences or an array have produced an element at a corresponding index.
   * The last element in the arguments must be a function to invoke for each series of elements at corresponding indexes in the args.
   * @returns {Observable} An observable sequence containing the result of combining elements of the args using the specified result selector function.
   */
  observableProto.zip = function () {
    if (arguments.length === 0) { throw new Error('invalid arguments'); }

    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    var resultSelector = isFunction(args[len - 1]) ? args.pop() : argumentsToArray;
    Array.isArray(args[0]) && (args = args[0]);

    var parent = this;
    args.unshift(parent);
    return new AnonymousObservable(function (o) {
      var n = args.length,
        queues = arrayInitialize(n, emptyArrayFactory),
        isDone = arrayInitialize(n, falseFactory);

      var subscriptions = new Array(n);
      for (var idx = 0; idx < n; idx++) {
        (function (i) {
          var source = args[i], sad = new SingleAssignmentDisposable();

          isPromise(source) && (source = observableFromPromise(source));

          sad.setDisposable(source.subscribe(function (x) {
            queues[i].push(x);
            if (queues.every(function (x) { return x.length > 0; })) {
              var queuedValues = queues.map(function (x) { return x.shift(); }),
                  res = tryCatch(resultSelector).apply(parent, queuedValues);
              if (res === errorObj) { return o.onError(res.e); }
              o.onNext(res);
            } else if (isDone.filter(function (x, j) { return j !== i; }).every(identity)) {
              o.onCompleted();
            }
          }, function (e) { o.onError(e); }, function () {
            isDone[i] = true;
            isDone.every(identity) && o.onCompleted();
          }));
          subscriptions[i] = sad;
        })(idx);
      }

      return new CompositeDisposable(subscriptions);
    }, parent);
  };

  /**
   * Merges the specified observable sequences into one observable sequence by using the selector function whenever all of the observable sequences have produced an element at a corresponding index.
   * @param arguments Observable sources.
   * @param {Function} resultSelector Function to invoke for each series of elements at corresponding indexes in the sources.
   * @returns {Observable} An observable sequence containing the result of combining elements of the sources using the specified result selector function.
   */
  Observable.zip = function () {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    if (Array.isArray(args[0])) {
      args = isFunction(args[1]) ? args[0].concat(args[1]) : args[0];
    }
    var first = args.shift();
    return first.zip.apply(first, args);
  };

function falseFactory() { return false; }
function emptyArrayFactory() { return []; }
function argumentsToArray() {
  var len = arguments.length, args = new Array(len);
  for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
  return args;
}

/**
 * Merges the specified observable sequences into one observable sequence by using the selector function whenever all of the observable sequences or an array have produced an element at a corresponding index.
 * The last element in the arguments must be a function to invoke for each series of elements at corresponding indexes in the args.
 * @returns {Observable} An observable sequence containing the result of combining elements of the args using the specified result selector function.
 */
observableProto.zipIterable = function () {
  if (arguments.length === 0) { throw new Error('invalid arguments'); }

  var len = arguments.length, args = new Array(len);
  for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
  var resultSelector = isFunction(args[len - 1]) ? args.pop() : argumentsToArray;

  var parent = this;
  args.unshift(parent);
  return new AnonymousObservable(function (o) {
    var n = args.length,
      queues = arrayInitialize(n, emptyArrayFactory),
      isDone = arrayInitialize(n, falseFactory);

    var subscriptions = new Array(n);
    for (var idx = 0; idx < n; idx++) {
      (function (i) {
        var source = args[i], sad = new SingleAssignmentDisposable();

        (isArrayLike(source) || isIterable(source)) && (source = observableFrom(source));

        sad.setDisposable(source.subscribe(function (x) {
          queues[i].push(x);
          if (queues.every(function (x) { return x.length > 0; })) {
            var queuedValues = queues.map(function (x) { return x.shift(); }),
                res = tryCatch(resultSelector).apply(parent, queuedValues);
            if (res === errorObj) { return o.onError(res.e); }
            o.onNext(res);
          } else if (isDone.filter(function (x, j) { return j !== i; }).every(identity)) {
            o.onCompleted();
          }
        }, function (e) { o.onError(e); }, function () {
          isDone[i] = true;
          isDone.every(identity) && o.onCompleted();
        }));
        subscriptions[i] = sad;
      })(idx);
    }

    return new CompositeDisposable(subscriptions);
  }, parent);
};

  function asObservable(source) {
    return function subscribe(o) { return source.subscribe(o); };
  }

  /**
   *  Hides the identity of an observable sequence.
   * @returns {Observable} An observable sequence that hides the identity of the source sequence.
   */
  observableProto.asObservable = function () {
    return new AnonymousObservable(asObservable(this), this);
  };

  /**
   * Dematerializes the explicit notification values of an observable sequence as implicit notifications.
   * @returns {Observable} An observable sequence exhibiting the behavior corresponding to the source sequence's notification values.
   */
  observableProto.dematerialize = function () {
    var source = this;
    return new AnonymousObservable(function (o) {
      return source.subscribe(function (x) { return x.accept(o); }, function(e) { o.onError(e); }, function () { o.onCompleted(); });
    }, this);
  };

  var DistinctUntilChangedObservable = (function(__super__) {
    inherits(DistinctUntilChangedObservable, __super__);
    function DistinctUntilChangedObservable(source, keyFn, comparer) {
      this.source = source;
      this.keyFn = keyFn;
      this.comparer = comparer;
      __super__.call(this);
    }

    DistinctUntilChangedObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new DistinctUntilChangedObserver(o, this.keyFn, this.comparer));
    };

    return DistinctUntilChangedObservable;
  }(ObservableBase));

  var DistinctUntilChangedObserver = (function(__super__) {
    inherits(DistinctUntilChangedObserver, __super__);
    function DistinctUntilChangedObserver(o, keyFn, comparer) {
      this.o = o;
      this.keyFn = keyFn;
      this.comparer = comparer;
      this.hasCurrentKey = false;
      this.currentKey = null;
      __super__.call(this);
    }

    DistinctUntilChangedObserver.prototype.next = function (x) {
      var key = x, comparerEquals;
      if (isFunction(this.keyFn)) {
        key = tryCatch(this.keyFn)(x);
        if (key === errorObj) { return this.o.onError(key.e); }
      }
      if (this.hasCurrentKey) {
        comparerEquals = tryCatch(this.comparer)(this.currentKey, key);
        if (comparerEquals === errorObj) { return this.o.onError(comparerEquals.e); }
      }
      if (!this.hasCurrentKey || !comparerEquals) {
        this.hasCurrentKey = true;
        this.currentKey = key;
        this.o.onNext(x);
      }
    };
    DistinctUntilChangedObserver.prototype.error = function(e) {
      this.o.onError(e);
    };
    DistinctUntilChangedObserver.prototype.completed = function () {
      this.o.onCompleted();
    };

    return DistinctUntilChangedObserver;
  }(AbstractObserver));

  /**
  *  Returns an observable sequence that contains only distinct contiguous elements according to the keyFn and the comparer.
  * @param {Function} [keyFn] A function to compute the comparison key for each element. If not provided, it projects the value.
  * @param {Function} [comparer] Equality comparer for computed key values. If not provided, defaults to an equality comparer function.
  * @returns {Observable} An observable sequence only containing the distinct contiguous elements, based on a computed key value, from the source sequence.
  */
  observableProto.distinctUntilChanged = function (keyFn, comparer) {
    comparer || (comparer = defaultComparer);
    return new DistinctUntilChangedObservable(this, keyFn, comparer);
  };

  var TapObservable = (function(__super__) {
    inherits(TapObservable,__super__);
    function TapObservable(source, observerOrOnNext, onError, onCompleted) {
      this.source = source;
      this._oN = observerOrOnNext;
      this._oE = onError;
      this._oC = onCompleted;
      __super__.call(this);
    }

    TapObservable.prototype.subscribeCore = function(o) {
      return this.source.subscribe(new InnerObserver(o, this));
    };

    function InnerObserver(o, p) {
      this.o = o;
      this.t = !p._oN || isFunction(p._oN) ?
        observerCreate(p._oN || noop, p._oE || noop, p._oC || noop) :
        p._oN;
      this.isStopped = false;
    }
    InnerObserver.prototype.onNext = function(x) {
      if (this.isStopped) { return; }
      var res = tryCatch(this.t.onNext).call(this.t, x);
      if (res === errorObj) { this.o.onError(res.e); }
      this.o.onNext(x);
    };
    InnerObserver.prototype.onError = function(err) {
      if (!this.isStopped) {
        this.isStopped = true;
        var res = tryCatch(this.t.onError).call(this.t, err);
        if (res === errorObj) { return this.o.onError(res.e); }
        this.o.onError(err);
      }
    };
    InnerObserver.prototype.onCompleted = function() {
      if (!this.isStopped) {
        this.isStopped = true;
        var res = tryCatch(this.t.onCompleted).call(this.t);
        if (res === errorObj) { return this.o.onError(res.e); }
        this.o.onCompleted();
      }
    };
    InnerObserver.prototype.dispose = function() { this.isStopped = true; };
    InnerObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
        return true;
      }
      return false;
    };

    return TapObservable;
  }(ObservableBase));

  /**
  *  Invokes an action for each element in the observable sequence and invokes an action upon graceful or exceptional termination of the observable sequence.
  *  This method can be used for debugging, logging, etc. of query behavior by intercepting the message stream to run arbitrary actions for messages on the pipeline.
  * @param {Function | Observer} observerOrOnNext Action to invoke for each element in the observable sequence or an o.
  * @param {Function} [onError]  Action to invoke upon exceptional termination of the observable sequence. Used if only the observerOrOnNext parameter is also a function.
  * @param {Function} [onCompleted]  Action to invoke upon graceful termination of the observable sequence. Used if only the observerOrOnNext parameter is also a function.
  * @returns {Observable} The source sequence with the side-effecting behavior applied.
  */
  observableProto['do'] = observableProto.tap = observableProto.doAction = function (observerOrOnNext, onError, onCompleted) {
    return new TapObservable(this, observerOrOnNext, onError, onCompleted);
  };

  /**
  *  Invokes an action for each element in the observable sequence.
  *  This method can be used for debugging, logging, etc. of query behavior by intercepting the message stream to run arbitrary actions for messages on the pipeline.
  * @param {Function} onNext Action to invoke for each element in the observable sequence.
  * @param {Any} [thisArg] Object to use as this when executing callback.
  * @returns {Observable} The source sequence with the side-effecting behavior applied.
  */
  observableProto.doOnNext = observableProto.tapOnNext = function (onNext, thisArg) {
    return this.tap(typeof thisArg !== 'undefined' ? function (x) { onNext.call(thisArg, x); } : onNext);
  };

  /**
  *  Invokes an action upon exceptional termination of the observable sequence.
  *  This method can be used for debugging, logging, etc. of query behavior by intercepting the message stream to run arbitrary actions for messages on the pipeline.
  * @param {Function} onError Action to invoke upon exceptional termination of the observable sequence.
  * @param {Any} [thisArg] Object to use as this when executing callback.
  * @returns {Observable} The source sequence with the side-effecting behavior applied.
  */
  observableProto.doOnError = observableProto.tapOnError = function (onError, thisArg) {
    return this.tap(noop, typeof thisArg !== 'undefined' ? function (e) { onError.call(thisArg, e); } : onError);
  };

  /**
  *  Invokes an action upon graceful termination of the observable sequence.
  *  This method can be used for debugging, logging, etc. of query behavior by intercepting the message stream to run arbitrary actions for messages on the pipeline.
  * @param {Function} onCompleted Action to invoke upon graceful termination of the observable sequence.
  * @param {Any} [thisArg] Object to use as this when executing callback.
  * @returns {Observable} The source sequence with the side-effecting behavior applied.
  */
  observableProto.doOnCompleted = observableProto.tapOnCompleted = function (onCompleted, thisArg) {
    return this.tap(noop, null, typeof thisArg !== 'undefined' ? function () { onCompleted.call(thisArg); } : onCompleted);
  };

  /**
   *  Invokes a specified action after the source observable sequence terminates gracefully or exceptionally.
   * @param {Function} finallyAction Action to invoke after the source observable sequence terminates.
   * @returns {Observable} Source sequence with the action-invoking termination behavior applied.
   */
  observableProto['finally'] = function (action) {
    var source = this;
    return new AnonymousObservable(function (observer) {
      var subscription = tryCatch(source.subscribe).call(source, observer);
      if (subscription === errorObj) {
        action();
        return thrower(subscription.e);
      }
      return disposableCreate(function () {
        var r = tryCatch(subscription.dispose).call(subscription);
        action();
        r === errorObj && thrower(r.e);
      });
    }, this);
  };

  var IgnoreElementsObservable = (function(__super__) {
    inherits(IgnoreElementsObservable, __super__);

    function IgnoreElementsObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    IgnoreElementsObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new InnerObserver(o));
    };

    function InnerObserver(o) {
      this.o = o;
      this.isStopped = false;
    }
    InnerObserver.prototype.onNext = noop;
    InnerObserver.prototype.onError = function (err) {
      if(!this.isStopped) {
        this.isStopped = true;
        this.o.onError(err);
      }
    };
    InnerObserver.prototype.onCompleted = function () {
      if(!this.isStopped) {
        this.isStopped = true;
        this.o.onCompleted();
      }
    };
    InnerObserver.prototype.dispose = function() { this.isStopped = true; };
    InnerObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.observer.onError(e);
        return true;
      }

      return false;
    };

    return IgnoreElementsObservable;
  }(ObservableBase));

  /**
   *  Ignores all elements in an observable sequence leaving only the termination messages.
   * @returns {Observable} An empty observable sequence that signals termination, successful or exceptional, of the source sequence.
   */
  observableProto.ignoreElements = function () {
    return new IgnoreElementsObservable(this);
  };

  /**
   *  Materializes the implicit notifications of an observable sequence as explicit notification values.
   * @returns {Observable} An observable sequence containing the materialized notification values from the source sequence.
   */
  observableProto.materialize = function () {
    var source = this;
    return new AnonymousObservable(function (observer) {
      return source.subscribe(function (value) {
        observer.onNext(notificationCreateOnNext(value));
      }, function (e) {
        observer.onNext(notificationCreateOnError(e));
        observer.onCompleted();
      }, function () {
        observer.onNext(notificationCreateOnCompleted());
        observer.onCompleted();
      });
    }, source);
  };

  /**
   *  Repeats the observable sequence a specified number of times. If the repeat count is not specified, the sequence repeats indefinitely.
   * @param {Number} [repeatCount]  Number of times to repeat the sequence. If not provided, repeats the sequence indefinitely.
   * @returns {Observable} The observable sequence producing the elements of the given sequence repeatedly.
   */
  observableProto.repeat = function (repeatCount) {
    return enumerableRepeat(this, repeatCount).concat();
  };

  /**
   *  Repeats the source observable sequence the specified number of times or until it successfully terminates. If the retry count is not specified, it retries indefinitely.
   *  Note if you encounter an error and want it to retry once, then you must use .retry(2);
   *
   * @example
   *  var res = retried = retry.repeat();
   *  var res = retried = retry.repeat(2);
   * @param {Number} [retryCount]  Number of times to retry the sequence. If not provided, retry the sequence indefinitely.
   * @returns {Observable} An observable sequence producing the elements of the given sequence repeatedly until it terminates successfully.
   */
  observableProto.retry = function (retryCount) {
    return enumerableRepeat(this, retryCount).catchError();
  };

  /**
   *  Repeats the source observable sequence upon error each time the notifier emits or until it successfully terminates. 
   *  if the notifier completes, the observable sequence completes.
   *
   * @example
   *  var timer = Observable.timer(500);
   *  var source = observable.retryWhen(timer);
   * @param {Observable} [notifier] An observable that triggers the retries or completes the observable with onNext or onCompleted respectively.
   * @returns {Observable} An observable sequence producing the elements of the given sequence repeatedly until it terminates successfully.
   */
  observableProto.retryWhen = function (notifier) {
    return enumerableRepeat(this).catchErrorWhen(notifier);
  };
  var ScanObservable = (function(__super__) {
    inherits(ScanObservable, __super__);
    function ScanObservable(source, accumulator, hasSeed, seed) {
      this.source = source;
      this.accumulator = accumulator;
      this.hasSeed = hasSeed;
      this.seed = seed;
      __super__.call(this);
    }

    ScanObservable.prototype.subscribeCore = function(o) {
      return this.source.subscribe(new InnerObserver(o,this));
    };

    return ScanObservable;
  }(ObservableBase));

  function InnerObserver(o, parent) {
    this.o = o;
    this.accumulator = parent.accumulator;
    this.hasSeed = parent.hasSeed;
    this.seed = parent.seed;
    this.hasAccumulation = false;
    this.accumulation = null;
    this.hasValue = false;
    this.isStopped = false;
  }
  InnerObserver.prototype = {
    onNext: function (x) {
      if (this.isStopped) { return; }
      !this.hasValue && (this.hasValue = true);
      if (this.hasAccumulation) {
        this.accumulation = tryCatch(this.accumulator)(this.accumulation, x);
      } else {
        this.accumulation = this.hasSeed ? tryCatch(this.accumulator)(this.seed, x) : x;
        this.hasAccumulation = true;
      }
      if (this.accumulation === errorObj) { return this.o.onError(this.accumulation.e); }
      this.o.onNext(this.accumulation);
    },
    onError: function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
      }
    },
    onCompleted: function () {
      if (!this.isStopped) {
        this.isStopped = true;
        !this.hasValue && this.hasSeed && this.o.onNext(this.seed);
        this.o.onCompleted();
      }
    },
    dispose: function() { this.isStopped = true; },
    fail: function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
        return true;
      }
      return false;
    }
  };

  /**
  *  Applies an accumulator function over an observable sequence and returns each intermediate result. The optional seed value is used as the initial accumulator value.
  *  For aggregation behavior with no intermediate results, see Observable.aggregate.
  * @param {Mixed} [seed] The initial accumulator value.
  * @param {Function} accumulator An accumulator function to be invoked on each element.
  * @returns {Observable} An observable sequence containing the accumulated values.
  */
  observableProto.scan = function () {
    var hasSeed = false, seed, accumulator = arguments[0];
    if (arguments.length === 2) {
      hasSeed = true;
      seed = arguments[1];
    }
    return new ScanObservable(this, accumulator, hasSeed, seed);
  };

  /**
   *  Bypasses a specified number of elements at the end of an observable sequence.
   * @description
   *  This operator accumulates a queue with a length enough to store the first `count` elements. As more elements are
   *  received, elements are taken from the front of the queue and produced on the result sequence. This causes elements to be delayed.
   * @param count Number of elements to bypass at the end of the source sequence.
   * @returns {Observable} An observable sequence containing the source sequence elements except for the bypassed ones at the end.
   */
  observableProto.skipLast = function (count) {
    if (count < 0) { throw new ArgumentOutOfRangeError(); }
    var source = this;
    return new AnonymousObservable(function (o) {
      var q = [];
      return source.subscribe(function (x) {
        q.push(x);
        q.length > count && o.onNext(q.shift());
      }, function (e) { o.onError(e); }, function () { o.onCompleted(); });
    }, source);
  };

  /**
   *  Prepends a sequence of values to an observable sequence with an optional scheduler and an argument list of values to prepend.
   *  @example
   *  var res = source.startWith(1, 2, 3);
   *  var res = source.startWith(Rx.Scheduler.timeout, 1, 2, 3);
   * @param {Arguments} args The specified values to prepend to the observable sequence
   * @returns {Observable} The source sequence prepended with the specified values.
   */
  observableProto.startWith = function () {
    var values, scheduler, start = 0;
    if (!!arguments.length && isScheduler(arguments[0])) {
      scheduler = arguments[0];
      start = 1;
    } else {
      scheduler = immediateScheduler;
    }
    for(var args = [], i = start, len = arguments.length; i < len; i++) { args.push(arguments[i]); }
    return enumerableOf([observableFromArray(args, scheduler), this]).concat();
  };

  /**
   *  Returns a specified number of contiguous elements from the end of an observable sequence.
   * @description
   *  This operator accumulates a buffer with a length enough to store elements count elements. Upon completion of
   *  the source sequence, this buffer is drained on the result sequence. This causes the elements to be delayed.
   * @param {Number} count Number of elements to take from the end of the source sequence.
   * @returns {Observable} An observable sequence containing the specified number of elements from the end of the source sequence.
   */
  observableProto.takeLast = function (count) {
    if (count < 0) { throw new ArgumentOutOfRangeError(); }
    var source = this;
    return new AnonymousObservable(function (o) {
      var q = [];
      return source.subscribe(function (x) {
        q.push(x);
        q.length > count && q.shift();
      }, function (e) { o.onError(e); }, function () {
        while (q.length > 0) { o.onNext(q.shift()); }
        o.onCompleted();
      });
    }, source);
  };

observableProto.flatMapConcat = observableProto.concatMap = function(selector, resultSelector, thisArg) {
    return new FlatMapObservable(this, selector, resultSelector, thisArg).merge(1);
};
  var MapObservable = (function (__super__) {
    inherits(MapObservable, __super__);

    function MapObservable(source, selector, thisArg) {
      this.source = source;
      this.selector = bindCallback(selector, thisArg, 3);
      __super__.call(this);
    }

    function innerMap(selector, self) {
      return function (x, i, o) { return selector.call(this, self.selector(x, i, o), i, o); }
    }

    MapObservable.prototype.internalMap = function (selector, thisArg) {
      return new MapObservable(this.source, innerMap(selector, this), thisArg);
    };

    MapObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new InnerObserver(o, this.selector, this));
    };

    function InnerObserver(o, selector, source) {
      this.o = o;
      this.selector = selector;
      this.source = source;
      this.i = 0;
      this.isStopped = false;
    }

    InnerObserver.prototype.onNext = function(x) {
      if (this.isStopped) { return; }
      var result = tryCatch(this.selector)(x, this.i++, this.source);
      if (result === errorObj) { return this.o.onError(result.e); }
      this.o.onNext(result);
    };
    InnerObserver.prototype.onError = function (e) {
      if(!this.isStopped) { this.isStopped = true; this.o.onError(e); }
    };
    InnerObserver.prototype.onCompleted = function () {
      if(!this.isStopped) { this.isStopped = true; this.o.onCompleted(); }
    };
    InnerObserver.prototype.dispose = function() { this.isStopped = true; };
    InnerObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
        return true;
      }

      return false;
    };

    return MapObservable;

  }(ObservableBase));

  /**
  * Projects each element of an observable sequence into a new form by incorporating the element's index.
  * @param {Function} selector A transform function to apply to each source element; the second parameter of the function represents the index of the source element.
  * @param {Any} [thisArg] Object to use as this when executing callback.
  * @returns {Observable} An observable sequence whose elements are the result of invoking the transform function on each element of source.
  */
  observableProto.map = observableProto.select = function (selector, thisArg) {
    var selectorFn = typeof selector === 'function' ? selector : function () { return selector; };
    return this instanceof MapObservable ?
      this.internalMap(selectorFn, thisArg) :
      new MapObservable(this, selectorFn, thisArg);
  };

  function plucker(args, len) {
    return function mapper(x) {
      var currentProp = x;
      for (var i = 0; i < len; i++) {
        var p = currentProp[args[i]];
        if (typeof p !== 'undefined') {
          currentProp = p;
        } else {
          return undefined;
        }
      }
      return currentProp;
    }
  }

  /**
   * Retrieves the value of a specified nested property from all elements in
   * the Observable sequence.
   * @param {Arguments} arguments The nested properties to pluck.
   * @returns {Observable} Returns a new Observable sequence of property values.
   */
  observableProto.pluck = function () {
    var len = arguments.length, args = new Array(len);
    if (len === 0) { throw new Error('List of properties cannot be empty.'); }
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return this.map(plucker(args, len));
  };

observableProto.flatMap = observableProto.selectMany = function(selector, resultSelector, thisArg) {
    return new FlatMapObservable(this, selector, resultSelector, thisArg).mergeAll();
};


//
//Rx.Observable.prototype.flatMapWithMaxConcurrent = function(limit, selector, resultSelector, thisArg) {
//    return new FlatMapObservable(this, selector, resultSelector, thisArg).merge(limit);
//};
//

Rx.Observable.prototype.flatMapLatest = function(selector, resultSelector, thisArg) {
    return new FlatMapObservable(this, selector, resultSelector, thisArg).switchLatest();
};
  var SkipObservable = (function(__super__) {
    inherits(SkipObservable, __super__);
    function SkipObservable(source, count) {
      this.source = source;
      this.skipCount = count;
      __super__.call(this);
    }
    
    SkipObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new InnerObserver(o, this.skipCount));
    };
    
    function InnerObserver(o, c) {
      this.c = c;
      this.r = c;
      this.o = o;
      this.isStopped = false;
    }
    InnerObserver.prototype.onNext = function (x) {
      if (this.isStopped) { return; }
      if (this.r <= 0) { 
        this.o.onNext(x);
      } else {
        this.r--;
      }
    };
    InnerObserver.prototype.onError = function(e) {
      if (!this.isStopped) { this.isStopped = true; this.o.onError(e); }
    };
    InnerObserver.prototype.onCompleted = function() {
      if (!this.isStopped) { this.isStopped = true; this.o.onCompleted(); }
    };
    InnerObserver.prototype.dispose = function() { this.isStopped = true; };
    InnerObserver.prototype.fail = function(e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
        return true;
      }
      return false;
    };
    
    return SkipObservable;
  }(ObservableBase));  
  
  /**
   * Bypasses a specified number of elements in an observable sequence and then returns the remaining elements.
   * @param {Number} count The number of elements to skip before returning the remaining elements.
   * @returns {Observable} An observable sequence that contains the elements that occur after the specified index in the input sequence.
   */
  observableProto.skip = function (count) {
    if (count < 0) { throw new ArgumentOutOfRangeError(); }
    return new SkipObservable(this, count);
  };
  /**
   *  Bypasses elements in an observable sequence as long as a specified condition is true and then returns the remaining elements.
   *  The element's index is used in the logic of the predicate function.
   *
   *  var res = source.skipWhile(function (value) { return value < 10; });
   *  var res = source.skipWhile(function (value, index) { return value < 10 || index < 10; });
   * @param {Function} predicate A function to test each element for a condition; the second parameter of the function represents the index of the source element.
   * @param {Any} [thisArg] Object to use as this when executing callback.
   * @returns {Observable} An observable sequence that contains the elements from the input sequence starting at the first element in the linear series that does not pass the test specified by predicate.
   */
  observableProto.skipWhile = function (predicate, thisArg) {
    var source = this,
        callback = bindCallback(predicate, thisArg, 3);
    return new AnonymousObservable(function (o) {
      var i = 0, running = false;
      return source.subscribe(function (x) {
        if (!running) {
          try {
            running = !callback(x, i++, source);
          } catch (e) {
            o.onError(e);
            return;
          }
        }
        running && o.onNext(x);
      }, function (e) { o.onError(e); }, function () { o.onCompleted(); });
    }, source);
  };

  /**
   *  Returns a specified number of contiguous elements from the start of an observable sequence, using the specified scheduler for the edge case of take(0).
   *
   *  var res = source.take(5);
   *  var res = source.take(0, Rx.Scheduler.timeout);
   * @param {Number} count The number of elements to return.
   * @param {Scheduler} [scheduler] Scheduler used to produce an OnCompleted message in case <paramref name="count count</paramref> is set to 0.
   * @returns {Observable} An observable sequence that contains the specified number of elements from the start of the input sequence.
   */
  observableProto.take = function (count, scheduler) {
    if (count < 0) { throw new ArgumentOutOfRangeError(); }
    if (count === 0) { return observableEmpty(scheduler); }
    var source = this;
    return new AnonymousObservable(function (o) {
      var remaining = count;
      return source.subscribe(function (x) {
        if (remaining-- > 0) {
          o.onNext(x);
          remaining <= 0 && o.onCompleted();
        }
      }, function (e) { o.onError(e); }, function () { o.onCompleted(); });
    }, source);
  };

  /**
   *  Returns elements from an observable sequence as long as a specified condition is true.
   *  The element's index is used in the logic of the predicate function.
   * @param {Function} predicate A function to test each element for a condition; the second parameter of the function represents the index of the source element.
   * @param {Any} [thisArg] Object to use as this when executing callback.
   * @returns {Observable} An observable sequence that contains the elements from the input sequence that occur before the element at which the test no longer passes.
   */
  observableProto.takeWhile = function (predicate, thisArg) {
    var source = this,
        callback = bindCallback(predicate, thisArg, 3);
    return new AnonymousObservable(function (o) {
      var i = 0, running = true;
      return source.subscribe(function (x) {
        if (running) {
          try {
            running = callback(x, i++, source);
          } catch (e) {
            o.onError(e);
            return;
          }
          if (running) {
            o.onNext(x);
          } else {
            o.onCompleted();
          }
        }
      }, function (e) { o.onError(e); }, function () { o.onCompleted(); });
    }, source);
  };

  var FilterObservable = (function (__super__) {
    inherits(FilterObservable, __super__);

    function FilterObservable(source, predicate, thisArg) {
      this.source = source;
      this.predicate = bindCallback(predicate, thisArg, 3);
      __super__.call(this);
    }

    FilterObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new InnerObserver(o, this.predicate, this));
    };
    
    function innerPredicate(predicate, self) {
      return function(x, i, o) { return self.predicate(x, i, o) && predicate.call(this, x, i, o); }
    }

    FilterObservable.prototype.internalFilter = function(predicate, thisArg) {
      return new FilterObservable(this.source, innerPredicate(predicate, this), thisArg);
    };
    
    function InnerObserver(o, predicate, source) {
      this.o = o;
      this.predicate = predicate;
      this.source = source;
      this.i = 0;
      this.isStopped = false;
    }
  
    InnerObserver.prototype.onNext = function(x) {
      if (this.isStopped) { return; }
      var shouldYield = tryCatch(this.predicate)(x, this.i++, this.source);
      if (shouldYield === errorObj) {
        return this.o.onError(shouldYield.e);
      }
      shouldYield && this.o.onNext(x);
    };
    InnerObserver.prototype.onError = function (e) {
      if(!this.isStopped) { this.isStopped = true; this.o.onError(e); }
    };
    InnerObserver.prototype.onCompleted = function () {
      if(!this.isStopped) { this.isStopped = true; this.o.onCompleted(); }
    };
    InnerObserver.prototype.dispose = function() { this.isStopped = true; };
    InnerObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.o.onError(e);
        return true;
      }
      return false;
    };

    return FilterObservable;

  }(ObservableBase));

  /**
  *  Filters the elements of an observable sequence based on a predicate by incorporating the element's index.
  * @param {Function} predicate A function to test each source element for a condition; the second parameter of the function represents the index of the source element.
  * @param {Any} [thisArg] Object to use as this when executing callback.
  * @returns {Observable} An observable sequence that contains elements from the input sequence that satisfy the condition.
  */
  observableProto.filter = observableProto.where = function (predicate, thisArg) {
    return this instanceof FilterObservable ? this.internalFilter(predicate, thisArg) :
      new FilterObservable(this, predicate, thisArg);
  };

function createCbObservable(fn, ctx, selector, args) {
  var o = new AsyncSubject();

  args.push(createCbHandler(o, ctx, selector));
  fn.apply(ctx, args);

  return o.asObservable();
}

function createCbHandler(o, ctx, selector) {
  return function handler () {
    var len = arguments.length, results = new Array(len);
    for(var i = 0; i < len; i++) { results[i] = arguments[i]; }

    if (isFunction(selector)) {
      results = tryCatch(selector).apply(ctx, results);
      if (results === errorObj) { return o.onError(results.e); }
      o.onNext(results);
    } else {
      if (results.length <= 1) {
        o.onNext(results[0]);
      } else {
        o.onNext(results);
      }
    }

    o.onCompleted();
  };
}

/**
 * Converts a callback function to an observable sequence.
 *
 * @param {Function} fn Function with a callback as the last parameter to convert to an Observable sequence.
 * @param {Mixed} [ctx] The context for the func parameter to be executed.  If not specified, defaults to undefined.
 * @param {Function} [selector] A selector which takes the arguments from the callback to produce a single item to yield on next.
 * @returns {Function} A function, when executed with the required parameters minus the callback, produces an Observable sequence with a single value of the arguments to the callback as an array.
 */
Observable.fromCallback = function (fn, ctx, selector) {
  return function () {
    typeof ctx === 'undefined' && (ctx = this); 

    var len = arguments.length, args = new Array(len)
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return createCbObservable(fn, ctx, selector, args);
  };
};

function createNodeObservable(fn, ctx, selector, args) {
  var o = new AsyncSubject();

  args.push(createNodeHandler(o, ctx, selector));
  fn.apply(ctx, args);

  return o.asObservable();
}

function createNodeHandler(o, ctx, selector) {
  return function handler () {
    var err = arguments[0];
    if (err) { return o.onError(err); }

    var len = arguments.length, results = [];
    for(var i = 1; i < len; i++) { results[i - 1] = arguments[i]; }

    if (isFunction(selector)) {
      var results = tryCatch(selector).apply(ctx, results);
      if (results === errorObj) { return o.onError(results.e); }
      o.onNext(results);
    } else {
      if (results.length <= 1) {
        o.onNext(results[0]);
      } else {
        o.onNext(results);
      }
    }

    o.onCompleted();
  };
}

/**
 * Converts a Node.js callback style function to an observable sequence.  This must be in function (err, ...) format.
 * @param {Function} fn The function to call
 * @param {Mixed} [ctx] The context for the func parameter to be executed.  If not specified, defaults to undefined.
 * @param {Function} [selector] A selector which takes the arguments from the callback minus the error to produce a single item to yield on next.
 * @returns {Function} An async function which when applied, returns an observable sequence with the callback arguments as an array.
 */
Observable.fromNodeCallback = function (fn, ctx, selector) {
  return function () {
    typeof ctx === 'undefined' && (ctx = this); 
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return createNodeObservable(fn, ctx, selector, args);
  };
};

  function ListenDisposable(e, n, fn) {
    this._e = e;
    this._n = n;
    this._fn = fn;
    this._e.addEventListener(this._n, this._fn, false);
    this.isDisposed = false;
  }
  ListenDisposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this._e.removeEventListener(this._n, this._fn, false);
      this.isDisposed = true;
    }
  };

  function createEventListener (el, eventName, handler) {
    var disposables = new CompositeDisposable();

    // Asume NodeList or HTMLCollection
    var elemToString = Object.prototype.toString.call(el);
    if (elemToString === '[object NodeList]' || elemToString === '[object HTMLCollection]') {
      for (var i = 0, len = el.length; i < len; i++) {
        disposables.add(createEventListener(el.item(i), eventName, handler));
      }
    } else if (el) {
      disposables.add(new ListenDisposable(el, eventName, handler));
    }

    return disposables;
  }

  /**
   * Configuration option to determine whether to use native events only
   */
  Rx.config.useNativeEvents = false;

  function eventHandler(o, selector) {
    return function handler () {
      var results = arguments[0];
      if (isFunction(selector)) {
        results = tryCatch(selector).apply(null, arguments);
        if (results === errorObj) { return o.onError(results.e); }
      }
      o.onNext(results);
    };
  }

  /**
   * Creates an observable sequence by adding an event listener to the matching DOMElement or each item in the NodeList.
   * @param {Object} element The DOMElement or NodeList to attach a listener.
   * @param {String} eventName The event name to attach the observable sequence.
   * @param {Function} [selector] A selector which takes the arguments from the event handler to produce a single item to yield on next.
   * @returns {Observable} An observable sequence of events from the specified element and the specified event.
   */
  Observable.fromEvent = function (element, eventName, selector) {
    // Node.js specific
    if (element.addListener) {
      return fromEventPattern(
        function (h) { element.addListener(eventName, h); },
        function (h) { element.removeListener(eventName, h); },
        selector);
    }

    // Use only if non-native events are allowed
    if (!Rx.config.useNativeEvents) {
      // Handles jq, Angular.js, Zepto, Marionette, Ember.js
      if (typeof element.on === 'function' && typeof element.off === 'function') {
        return fromEventPattern(
          function (h) { element.on(eventName, h); },
          function (h) { element.off(eventName, h); },
          selector);
      }
    }

    return new AnonymousObservable(function (o) {
      return createEventListener(
        element,
        eventName,
        eventHandler(o, selector));
    }).publish().refCount();
  };

  /**
   * Creates an observable sequence from an event emitter via an addHandler/removeHandler pair.
   * @param {Function} addHandler The function to add a handler to the emitter.
   * @param {Function} [removeHandler] The optional function to remove a handler from an emitter.
   * @param {Function} [selector] A selector which takes the arguments from the event handler to produce a single item to yield on next.
   * @param {Scheduler} [scheduler] A scheduler used to schedule the remove handler.
   * @returns {Observable} An observable sequence which wraps an event from an event emitter
   */
  var fromEventPattern = Observable.fromEventPattern = function (addHandler, removeHandler, selector, scheduler) {
    isScheduler(scheduler) || (scheduler = immediateScheduler);
    return new AnonymousObservable(function (o) {
      function innerHandler () {
        var result = arguments[0];
        if (isFunction(selector)) {
          result = tryCatch(selector).apply(null, arguments);
          if (result === errorObj) { return o.onError(result.e); }
        }
        o.onNext(result);
      }

      var returnValue = addHandler(innerHandler);
      return disposableCreate(function () {
        isFunction(removeHandler) && removeHandler(innerHandler, returnValue);
      });
    }).publish().refCount();
  };

  var FromPromiseObservable = (function(__super__) {
    inherits(FromPromiseObservable, __super__);
    function FromPromiseObservable(p) {
      this.p = p;
      __super__.call(this);
    }

    FromPromiseObservable.prototype.subscribeCore = function(o) {
      this.p.then(function (data) {
        o.onNext(data);
        o.onCompleted();
      }, function (err) { o.onError(err); });
      return disposableEmpty;
    };

    return FromPromiseObservable;
  }(ObservableBase));

  /**
  * Converts a Promise to an Observable sequence
  * @param {Promise} An ES6 Compliant promise.
  * @returns {Observable} An Observable sequence which wraps the existing promise success and failure.
  */
  var observableFromPromise = Observable.fromPromise = function (promise) {
    return new FromPromiseObservable(promise);
  };
  /*
   * Converts an existing observable sequence to an ES6 Compatible Promise
   * @example
   * var promise = Rx.Observable.return(42).toPromise(RSVP.Promise);
   *
   * // With config
   * Rx.config.Promise = RSVP.Promise;
   * var promise = Rx.Observable.return(42).toPromise();
   * @param {Function} [promiseCtor] The constructor of the promise. If not provided, it looks for it in Rx.config.Promise.
   * @returns {Promise} An ES6 compatible promise with the last value from the observable sequence.
   */
  observableProto.toPromise = function (promiseCtor) {
    promiseCtor || (promiseCtor = Rx.config.Promise);
    if (!promiseCtor) { throw new NotSupportedError('Promise type not provided nor in Rx.config.Promise'); }
    var source = this;
    return new promiseCtor(function (resolve, reject) {
      // No cancellation can be done
      var value, hasValue = false;
      source.subscribe(function (v) {
        value = v;
        hasValue = true;
      }, reject, function () {
        hasValue && resolve(value);
      });
    });
  };

  /**
   * Invokes the asynchronous function, surfacing the result through an observable sequence.
   * @param {Function} functionAsync Asynchronous function which returns a Promise to run.
   * @returns {Observable} An observable sequence exposing the function's result value, or an exception.
   */
  Observable.startAsync = function (functionAsync) {
    var promise;
    try {
      promise = functionAsync();
    } catch (e) {
      return observableThrow(e);
    }
    return observableFromPromise(promise);
  }

  /**
   * Multicasts the source sequence notifications through an instantiated subject into all uses of the sequence within a selector function. Each
   * subscription to the resulting sequence causes a separate multicast invocation, exposing the sequence resulting from the selector function's
   * invocation. For specializations with fixed subject types, see Publish, PublishLast, and Replay.
   *
   * @example
   * 1 - res = source.multicast(observable);
   * 2 - res = source.multicast(function () { return new Subject(); }, function (x) { return x; });
   *
   * @param {Function|Subject} subjectOrSubjectSelector
   * Factory function to create an intermediate subject through which the source sequence's elements will be multicast to the selector function.
   * Or:
   * Subject to push source elements into.
   *
   * @param {Function} [selector] Optional selector function which can use the multicasted source sequence subject to the policies enforced by the created subject. Specified only if <paramref name="subjectOrSubjectSelector" is a factory function.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.multicast = function (subjectOrSubjectSelector, selector) {
    var source = this;
    return typeof subjectOrSubjectSelector === 'function' ?
      new AnonymousObservable(function (observer) {
        var connectable = source.multicast(subjectOrSubjectSelector());
        return new CompositeDisposable(selector(connectable).subscribe(observer), connectable.connect());
      }, source) :
      new ConnectableObservable(source, subjectOrSubjectSelector);
  };

  /**
   * Returns an observable sequence that is the result of invoking the selector on a connectable observable sequence that shares a single subscription to the underlying sequence.
   * This operator is a specialization of Multicast using a regular Subject.
   *
   * @example
   * var resres = source.publish();
   * var res = source.publish(function (x) { return x; });
   *
   * @param {Function} [selector] Selector function which can use the multicasted source sequence as many times as needed, without causing multiple subscriptions to the source sequence. Subscribers to the given source will receive all notifications of the source from the time of the subscription on.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.publish = function (selector) {
    return selector && isFunction(selector) ?
      this.multicast(function () { return new Subject(); }, selector) :
      this.multicast(new Subject());
  };

  /**
   * Returns an observable sequence that shares a single subscription to the underlying sequence.
   * This operator is a specialization of publish which creates a subscription when the number of observers goes from zero to one, then shares that subscription with all subsequent observers until the number of observers returns to zero, at which point the subscription is disposed.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence.
   */
  observableProto.share = function () {
    return this.publish().refCount();
  };

  /**
   * Returns an observable sequence that is the result of invoking the selector on a connectable observable sequence that shares a single subscription to the underlying sequence containing only the last notification.
   * This operator is a specialization of Multicast using a AsyncSubject.
   *
   * @example
   * var res = source.publishLast();
   * var res = source.publishLast(function (x) { return x; });
   *
   * @param selector [Optional] Selector function which can use the multicasted source sequence as many times as needed, without causing multiple subscriptions to the source sequence. Subscribers to the given source will only receive the last notification of the source.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.publishLast = function (selector) {
    return selector && isFunction(selector) ?
      this.multicast(function () { return new AsyncSubject(); }, selector) :
      this.multicast(new AsyncSubject());
  };

  /**
   * Returns an observable sequence that is the result of invoking the selector on a connectable observable sequence that shares a single subscription to the underlying sequence and starts with initialValue.
   * This operator is a specialization of Multicast using a BehaviorSubject.
   *
   * @example
   * var res = source.publishValue(42);
   * var res = source.publishValue(function (x) { return x.select(function (y) { return y * y; }) }, 42);
   *
   * @param {Function} [selector] Optional selector function which can use the multicasted source sequence as many times as needed, without causing multiple subscriptions to the source sequence. Subscribers to the given source will receive immediately receive the initial value, followed by all notifications of the source from the time of the subscription on.
   * @param {Mixed} initialValue Initial value received by observers upon subscription.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.publishValue = function (initialValueOrSelector, initialValue) {
    return arguments.length === 2 ?
      this.multicast(function () {
        return new BehaviorSubject(initialValue);
      }, initialValueOrSelector) :
      this.multicast(new BehaviorSubject(initialValueOrSelector));
  };

  /**
   * Returns an observable sequence that shares a single subscription to the underlying sequence and starts with an initialValue.
   * This operator is a specialization of publishValue which creates a subscription when the number of observers goes from zero to one, then shares that subscription with all subsequent observers until the number of observers returns to zero, at which point the subscription is disposed.
   * @param {Mixed} initialValue Initial value received by observers upon subscription.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence.
   */
  observableProto.shareValue = function (initialValue) {
    return this.publishValue(initialValue).refCount();
  };

  /**
   * Returns an observable sequence that is the result of invoking the selector on a connectable observable sequence that shares a single subscription to the underlying sequence replaying notifications subject to a maximum time length for the replay buffer.
   * This operator is a specialization of Multicast using a ReplaySubject.
   *
   * @example
   * var res = source.replay(null, 3);
   * var res = source.replay(null, 3, 500);
   * var res = source.replay(null, 3, 500, scheduler);
   * var res = source.replay(function (x) { return x.take(6).repeat(); }, 3, 500, scheduler);
   *
   * @param selector [Optional] Selector function which can use the multicasted source sequence as many times as needed, without causing multiple subscriptions to the source sequence. Subscribers to the given source will receive all the notifications of the source subject to the specified replay buffer trimming policy.
   * @param bufferSize [Optional] Maximum element count of the replay buffer.
   * @param windowSize [Optional] Maximum time length of the replay buffer.
   * @param scheduler [Optional] Scheduler where connected observers within the selector function will be invoked on.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.replay = function (selector, bufferSize, windowSize, scheduler) {
    return selector && isFunction(selector) ?
      this.multicast(function () { return new ReplaySubject(bufferSize, windowSize, scheduler); }, selector) :
      this.multicast(new ReplaySubject(bufferSize, windowSize, scheduler));
  };

  /**
   * Returns an observable sequence that shares a single subscription to the underlying sequence replaying notifications subject to a maximum time length for the replay buffer.
   * This operator is a specialization of replay which creates a subscription when the number of observers goes from zero to one, then shares that subscription with all subsequent observers until the number of observers returns to zero, at which point the subscription is disposed.
   *
   * @example
   * var res = source.shareReplay(3);
   * var res = source.shareReplay(3, 500);
   * var res = source.shareReplay(3, 500, scheduler);
   *

   * @param bufferSize [Optional] Maximum element count of the replay buffer.
   * @param window [Optional] Maximum time length of the replay buffer.
   * @param scheduler [Optional] Scheduler where connected observers within the selector function will be invoked on.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence.
   */
  observableProto.shareReplay = function (bufferSize, windowSize, scheduler) {
    return this.replay(null, bufferSize, windowSize, scheduler).refCount();
  };

  var ConnectableObservable = Rx.ConnectableObservable = (function (__super__) {
    inherits(ConnectableObservable, __super__);

    function ConnectableObservable(source, subject) {
      var hasSubscription = false,
        subscription,
        sourceObservable = source.asObservable();

      this.connect = function () {
        if (!hasSubscription) {
          hasSubscription = true;
          subscription = new CompositeDisposable(sourceObservable.subscribe(subject), disposableCreate(function () {
            hasSubscription = false;
          }));
        }
        return subscription;
      };

      __super__.call(this, function (o) { return subject.subscribe(o); });
    }

    ConnectableObservable.prototype.refCount = function () {
      var connectableSubscription, count = 0, source = this;
      return new AnonymousObservable(function (observer) {
          var shouldConnect = ++count === 1,
            subscription = source.subscribe(observer);
          shouldConnect && (connectableSubscription = source.connect());
          return function () {
            subscription.dispose();
            --count === 0 && connectableSubscription.dispose();
          };
      });
    };

    return ConnectableObservable;
  }(Observable));

  function observableTimerDate(dueTime, scheduler) {
    return new AnonymousObservable(function (observer) {
      return scheduler.scheduleWithAbsolute(dueTime, function () {
        observer.onNext(0);
        observer.onCompleted();
      });
    });
  }

  function observableTimerDateAndPeriod(dueTime, period, scheduler) {
    return new AnonymousObservable(function (observer) {
      var d = dueTime, p = normalizeTime(period);
      return scheduler.scheduleRecursiveWithAbsoluteAndState(0, d, function (count, self) {
        if (p > 0) {
          var now = scheduler.now();
          d = d + p;
          d <= now && (d = now + p);
        }
        observer.onNext(count);
        self(count + 1, d);
      });
    });
  }

  function observableTimerTimeSpan(dueTime, scheduler) {
    return new AnonymousObservable(function (observer) {
      return scheduler.scheduleWithRelative(normalizeTime(dueTime), function () {
        observer.onNext(0);
        observer.onCompleted();
      });
    });
  }

  function observableTimerTimeSpanAndPeriod(dueTime, period, scheduler) {
    return dueTime === period ?
      new AnonymousObservable(function (observer) {
        return scheduler.schedulePeriodicWithState(0, period, function (count) {
          observer.onNext(count);
          return count + 1;
        });
      }) :
      observableDefer(function () {
        return observableTimerDateAndPeriod(scheduler.now() + dueTime, period, scheduler);
      });
  }

  /**
   *  Returns an observable sequence that produces a value after each period.
   *
   * @example
   *  1 - res = Rx.Observable.interval(1000);
   *  2 - res = Rx.Observable.interval(1000, Rx.Scheduler.timeout);
   *
   * @param {Number} period Period for producing the values in the resulting sequence (specified as an integer denoting milliseconds).
   * @param {Scheduler} [scheduler] Scheduler to run the timer on. If not specified, Rx.Scheduler.timeout is used.
   * @returns {Observable} An observable sequence that produces a value after each period.
   */
  var observableinterval = Observable.interval = function (period, scheduler) {
    return observableTimerTimeSpanAndPeriod(period, period, isScheduler(scheduler) ? scheduler : timeoutScheduler);
  };

  /**
   *  Returns an observable sequence that produces a value after dueTime has elapsed and then after each period.
   * @param {Number} dueTime Absolute (specified as a Date object) or relative time (specified as an integer denoting milliseconds) at which to produce the first value.
   * @param {Mixed} [periodOrScheduler]  Period to produce subsequent values (specified as an integer denoting milliseconds), or the scheduler to run the timer on. If not specified, the resulting timer is not recurring.
   * @param {Scheduler} [scheduler]  Scheduler to run the timer on. If not specified, the timeout scheduler is used.
   * @returns {Observable} An observable sequence that produces a value after due time has elapsed and then each period.
   */
  var observableTimer = Observable.timer = function (dueTime, periodOrScheduler, scheduler) {
    var period;
    isScheduler(scheduler) || (scheduler = timeoutScheduler);
    if (periodOrScheduler != null && typeof periodOrScheduler === 'number') {
      period = periodOrScheduler;
    } else if (isScheduler(periodOrScheduler)) {
      scheduler = periodOrScheduler;
    }
    if (dueTime instanceof Date && period === undefined) {
      return observableTimerDate(dueTime.getTime(), scheduler);
    }
    if (dueTime instanceof Date && period !== undefined) {
      return observableTimerDateAndPeriod(dueTime.getTime(), periodOrScheduler, scheduler);
    }
    return period === undefined ?
      observableTimerTimeSpan(dueTime, scheduler) :
      observableTimerTimeSpanAndPeriod(dueTime, period, scheduler);
  };

  function observableDelayRelative(source, dueTime, scheduler) {
    return new AnonymousObservable(function (o) {
      var active = false,
        cancelable = new SerialDisposable(),
        exception = null,
        q = [],
        running = false,
        subscription;
      subscription = source.materialize().timestamp(scheduler).subscribe(function (notification) {
        var d, shouldRun;
        if (notification.value.kind === 'E') {
          q = [];
          q.push(notification);
          exception = notification.value.exception;
          shouldRun = !running;
        } else {
          q.push({ value: notification.value, timestamp: notification.timestamp + dueTime });
          shouldRun = !active;
          active = true;
        }
        if (shouldRun) {
          if (exception !== null) {
            o.onError(exception);
          } else {
            d = new SingleAssignmentDisposable();
            cancelable.setDisposable(d);
            d.setDisposable(scheduler.scheduleRecursiveWithRelative(dueTime, function (self) {
              var e, recurseDueTime, result, shouldRecurse;
              if (exception !== null) {
                return;
              }
              running = true;
              do {
                result = null;
                if (q.length > 0 && q[0].timestamp - scheduler.now() <= 0) {
                  result = q.shift().value;
                }
                if (result !== null) {
                  result.accept(o);
                }
              } while (result !== null);
              shouldRecurse = false;
              recurseDueTime = 0;
              if (q.length > 0) {
                shouldRecurse = true;
                recurseDueTime = Math.max(0, q[0].timestamp - scheduler.now());
              } else {
                active = false;
              }
              e = exception;
              running = false;
              if (e !== null) {
                o.onError(e);
              } else if (shouldRecurse) {
                self(recurseDueTime);
              }
            }));
          }
        }
      });
      return new CompositeDisposable(subscription, cancelable);
    }, source);
  }

  function observableDelayAbsolute(source, dueTime, scheduler) {
    return observableDefer(function () {
      return observableDelayRelative(source, dueTime - scheduler.now(), scheduler);
    });
  }

  function delayWithSelector(source, subscriptionDelay, delayDurationSelector) {
    var subDelay, selector;
    if (isFunction(subscriptionDelay)) {
      selector = subscriptionDelay;
    } else {
      subDelay = subscriptionDelay;
      selector = delayDurationSelector;
    }
    return new AnonymousObservable(function (o) {
      var delays = new CompositeDisposable(), atEnd = false, subscription = new SerialDisposable();

      function start() {
        subscription.setDisposable(source.subscribe(
          function (x) {
            var delay = tryCatch(selector)(x);
            if (delay === errorObj) { return o.onError(delay.e); }
            var d = new SingleAssignmentDisposable();
            delays.add(d);
            d.setDisposable(delay.subscribe(
              function () {
                o.onNext(x);
                delays.remove(d);
                done();
              },
              function (e) { o.onError(e); },
              function () {
                o.onNext(x);
                delays.remove(d);
                done();
              }
            ));
          },
          function (e) { o.onError(e); },
          function () {
            atEnd = true;
            subscription.dispose();
            done();
          }
        ));
      }

      function done () {
        atEnd && delays.length === 0 && o.onCompleted();
      }

      if (!subDelay) {
        start();
      } else {
        subscription.setDisposable(subDelay.subscribe(start, function (e) { o.onError(e); }, start));
      }

      return new CompositeDisposable(subscription, delays);
    }, this);
  }

  /**
   *  Time shifts the observable sequence by dueTime.
   *  The relative time intervals between the values are preserved.
   *
   * @param {Number} dueTime Absolute (specified as a Date object) or relative time (specified as an integer denoting milliseconds) by which to shift the observable sequence.
   * @param {Scheduler} [scheduler] Scheduler to run the delay timers on. If not specified, the timeout scheduler is used.
   * @returns {Observable} Time-shifted sequence.
   */
  observableProto.delay = function () {
    if (typeof arguments[0] === 'number' || arguments[0] instanceof Date) {
      var dueTime = arguments[0], scheduler = arguments[1];
      isScheduler(scheduler) || (scheduler = timeoutScheduler);
      return dueTime instanceof Date ?
        observableDelayAbsolute(this, dueTime, scheduler) :
        observableDelayRelative(this, dueTime, scheduler);
    } else if (isFunction(arguments[0])) {
      return delayWithSelector(this, arguments[0], arguments[1]);
    } else {
      throw new Error('Invalid arguments');
    }
  };

  function debounce(source, dueTime, scheduler) {
    isScheduler(scheduler) || (scheduler = timeoutScheduler);
    return new AnonymousObservable(function (observer) {
      var cancelable = new SerialDisposable(), hasvalue = false, value, id = 0;
      var subscription = source.subscribe(
        function (x) {
          hasvalue = true;
          value = x;
          id++;
          var currentId = id,
            d = new SingleAssignmentDisposable();
          cancelable.setDisposable(d);
          d.setDisposable(scheduler.scheduleWithRelative(dueTime, function () {
            hasvalue && id === currentId && observer.onNext(value);
            hasvalue = false;
          }));
        },
        function (e) {
          cancelable.dispose();
          observer.onError(e);
          hasvalue = false;
          id++;
        },
        function () {
          cancelable.dispose();
          hasvalue && observer.onNext(value);
          observer.onCompleted();
          hasvalue = false;
          id++;
        });
      return new CompositeDisposable(subscription, cancelable);
    }, this);
  }

  function debounceWithSelector(source, durationSelector) {
    return new AnonymousObservable(function (o) {
      var value, hasValue = false, cancelable = new SerialDisposable(), id = 0;
      var subscription = source.subscribe(
        function (x) {
          var throttle = tryCatch(durationSelector)(x);
          if (throttle === errorObj) { return o.onError(throttle.e); }

          isPromise(throttle) && (throttle = observableFromPromise(throttle));

          hasValue = true;
          value = x;
          id++;
          var currentid = id, d = new SingleAssignmentDisposable();
          cancelable.setDisposable(d);
          d.setDisposable(throttle.subscribe(
            function () {
              hasValue && id === currentid && o.onNext(value);
              hasValue = false;
              d.dispose();
            },
            function (e) { o.onError(e); },
            function () {
              hasValue && id === currentid && o.onNext(value);
              hasValue = false;
              d.dispose();
            }
          ));
        },
        function (e) {
          cancelable.dispose();
          o.onError(e);
          hasValue = false;
          id++;
        },
        function () {
          cancelable.dispose();
          hasValue && o.onNext(value);
          o.onCompleted();
          hasValue = false;
          id++;
        }
      );
      return new CompositeDisposable(subscription, cancelable);
    }, source);
  }

  observableProto.debounce = function () {
    if (isFunction (arguments[0])) {
      return debounceWithSelector(this, arguments[0]);
    } else if (typeof arguments[0] === 'number') {
      return debounce(this, arguments[0], arguments[1]);
    } else {
      throw new Error('Invalid arguments');
    }
  };

  /**
   *  Records the timestamp for each value in an observable sequence.
   *
   * @example
   *  1 - res = source.timestamp(); // produces { value: x, timestamp: ts }
   *  2 - res = source.timestamp(Rx.Scheduler.default);
   *
   * @param {Scheduler} [scheduler]  Scheduler used to compute timestamps. If not specified, the default scheduler is used.
   * @returns {Observable} An observable sequence with timestamp information on values.
   */
  observableProto.timestamp = function (scheduler) {
    isScheduler(scheduler) || (scheduler = timeoutScheduler);
    return this.map(function (x) {
      return { value: x, timestamp: scheduler.now() };
    });
  };

  function sampleObservable(source, sampler) {
    return new AnonymousObservable(function (o) {
      var atEnd = false, value, hasValue = false;

      function sampleSubscribe() {
        if (hasValue) {
          hasValue = false;
          o.onNext(value);
        }
        atEnd && o.onCompleted();
      }

      var sourceSubscription = new SingleAssignmentDisposable();
      sourceSubscription.setDisposable(source.subscribe(
        function (newValue) {
          hasValue = true;
          value = newValue;
        },
        function (e) { o.onError(e); },
        function () {
          atEnd = true;
          sourceSubscription.dispose(); 
        }
      ));

      return new CompositeDisposable(
        sourceSubscription,
        sampler.subscribe(sampleSubscribe, function (e) { o.onError(e); }, sampleSubscribe)
      );
    }, source);
  }

  /**
   *  Samples the observable sequence at each interval.
   *
   * @example
   *  1 - res = source.sample(sampleObservable); // Sampler tick sequence
   *  2 - res = source.sample(5000); // 5 seconds
   *  2 - res = source.sample(5000, Rx.Scheduler.timeout); // 5 seconds
   *
   * @param {Mixed} intervalOrSampler Interval at which to sample (specified as an integer denoting milliseconds) or Sampler Observable.
   * @param {Scheduler} [scheduler]  Scheduler to run the sampling timer on. If not specified, the timeout scheduler is used.
   * @returns {Observable} Sampled observable sequence.
   */
  observableProto.sample = observableProto.throttleLatest = function (intervalOrSampler, scheduler) {
    isScheduler(scheduler) || (scheduler = timeoutScheduler);
    return typeof intervalOrSampler === 'number' ?
      sampleObservable(this, observableinterval(intervalOrSampler, scheduler)) :
      sampleObservable(this, intervalOrSampler);
  };

  var TimeoutError = Rx.TimeoutError = function(message) {
    this.message = message || 'Timeout has occurred';
    this.name = 'TimeoutError';
    Error.call(this);
  };
  TimeoutError.prototype = Object.create(Error.prototype);

  function timeoutWithSelector(source, firstTimeout, timeoutDurationSelector, other) {
    if (isFunction(firstTimeout)) {
      other = timeoutDurationSelector;
      timeoutDurationSelector = firstTimeout;
      firstTimeout = observableNever();
    }
    other || (other = observableThrow(new TimeoutError()));
    return new AnonymousObservable(function (o) {
      var subscription = new SerialDisposable(), timer = new SerialDisposable(), original = new SingleAssignmentDisposable();

      subscription.setDisposable(original);

      var id = 0, switched = false;

      function setTimer(timeout) {
        var myId = id, d = new SingleAssignmentDisposable();
        timer.setDisposable(d);
        d.setDisposable(timeout.subscribe(function () {
          id === myId && subscription.setDisposable(other.subscribe(o));
          d.dispose();
        }, function (e) {
          id === myId && o.onError(e);
        }, function () {
          id === myId && subscription.setDisposable(other.subscribe(o));
        }));
      };

      setTimer(firstTimeout);

      function oWins() {
        var res = !switched;
        if (res) { id++; }
        return res;
      }

      original.setDisposable(source.subscribe(function (x) {
        if (oWins()) {
          o.onNext(x);
          var timeout = tryCatch(timeoutDurationSelector)(x);
          if (timeout === errorObj) { return o.onError(timeout.e); }
          setTimer(isPromise(timeout) ? observableFromPromise(timeout) : timeout);
        }
      }, function (e) {
        oWins() && o.onError(e);
      }, function () {
        oWins() && o.onCompleted();
      }));
      return new CompositeDisposable(subscription, timer);
    }, source);
  }

  function timeout(source, dueTime, other, scheduler) {
    if (other == null) { throw new Error('other or scheduler must be specified'); }
    if (isScheduler(other)) {
      scheduler = other;
      other = observableThrow(new TimeoutError());
    }
    if (other instanceof Error) { other = observableThrow(other); }
    isScheduler(scheduler) || (scheduler = timeoutScheduler);

    var schedulerMethod = dueTime instanceof Date ?
      'scheduleWithAbsolute' :
      'scheduleWithRelative';

    return new AnonymousObservable(function (o) {
      var id = 0,
        original = new SingleAssignmentDisposable(),
        subscription = new SerialDisposable(),
        switched = false,
        timer = new SerialDisposable();

      subscription.setDisposable(original);

      function createTimer() {
        var myId = id;
        timer.setDisposable(scheduler[schedulerMethod](dueTime, function () {
          if (id === myId) {
            isPromise(other) && (other = observableFromPromise(other));
            subscription.setDisposable(other.subscribe(o));
          }
        }));
      }

      createTimer();

      original.setDisposable(source.subscribe(function (x) {
        if (!switched) {
          id++;
          o.onNext(x);
          createTimer();
        }
      }, function (e) {
        if (!switched) {
          id++;
          o.onError(e);
        }
      }, function () {
        if (!switched) {
          id++;
          o.onCompleted();
        }
      }));
      return new CompositeDisposable(subscription, timer);
    }, source);
  }

  observableProto.timeout = function () {
    var firstArg = arguments[0];
    if (firstArg instanceof Date || typeof firstArg === 'number') {
      return timeout(this, firstArg, arguments[1], arguments[2]);
    } else if (Observable.isObservable(firstArg) || isFunction(firstArg)) {
      return timeoutWithSelector(this, firstArg, arguments[1], arguments[2]);
    } else {
      throw new Error('Invalid arguments');
    }
  };

  /**
   * Returns an Observable that emits only the first item emitted by the source Observable during sequential time windows of a specified duration.
   * @param {Number} windowDuration time to wait before emitting another item after emitting the last item
   * @param {Scheduler} [scheduler] the Scheduler to use internally to manage the timers that handle timeout for each item. If not provided, defaults to Scheduler.timeout.
   * @returns {Observable} An Observable that performs the throttle operation.
   */
  observableProto.throttle = function (windowDuration, scheduler) {
    isScheduler(scheduler) || (scheduler = timeoutScheduler);
    var duration = +windowDuration || 0;
    if (duration <= 0) { throw new RangeError('windowDuration cannot be less or equal zero.'); }
    var source = this;
    return new AnonymousObservable(function (o) {
      var lastOnNext = 0;
      return source.subscribe(
        function (x) {
          var now = scheduler.now();
          if (lastOnNext === 0 || now - lastOnNext >= duration) {
            lastOnNext = now;
            o.onNext(x);
          }
        },function (e) { o.onError(e); }, function () { o.onCompleted(); }
      );
    }, source);
  };

  var PausableObservable = (function (__super__) {

    inherits(PausableObservable, __super__);

    function subscribe(observer) {
      var conn = this.source.publish(),
        subscription = conn.subscribe(observer),
        connection = disposableEmpty;

      var pausable = this.pauser.distinctUntilChanged().subscribe(function (b) {
        if (b) {
          connection = conn.connect();
        } else {
          connection.dispose();
          connection = disposableEmpty;
        }
      });

      return new CompositeDisposable(subscription, connection, pausable);
    }

    function PausableObservable(source, pauser) {
      this.source = source;
      this.controller = new Subject();

      if (pauser && pauser.subscribe) {
        this.pauser = this.controller.merge(pauser);
      } else {
        this.pauser = this.controller;
      }

      __super__.call(this, subscribe, source);
    }

    PausableObservable.prototype.pause = function () {
      this.controller.onNext(false);
    };

    PausableObservable.prototype.resume = function () {
      this.controller.onNext(true);
    };

    return PausableObservable;

  }(Observable));

  /**
   * Pauses the underlying observable sequence based upon the observable sequence which yields true/false.
   * @example
   * var pauser = new Rx.Subject();
   * var source = Rx.Observable.interval(100).pausable(pauser);
   * @param {Observable} pauser The observable sequence used to pause the underlying sequence.
   * @returns {Observable} The observable sequence which is paused based upon the pauser.
   */
  observableProto.pausable = function (pauser) {
    return new PausableObservable(this, pauser);
  };

  function combineLatestSource(source, subject, resultSelector) {
    return new AnonymousObservable(function (o) {
      var hasValue = [false, false],
        hasValueAll = false,
        isDone = false,
        values = new Array(2),
        err;

      function next(x, i) {
        values[i] = x;
        hasValue[i] = true;
        if (hasValueAll || (hasValueAll = hasValue.every(identity))) {
          if (err) { return o.onError(err); }
          var res = tryCatch(resultSelector).apply(null, values);
          if (res === errorObj) { return o.onError(res.e); }
          o.onNext(res);
        }
        isDone && values[1] && o.onCompleted();
      }

      return new CompositeDisposable(
        source.subscribe(
          function (x) {
            next(x, 0);
          },
          function (e) {
            if (values[1]) {
              o.onError(e);
            } else {
              err = e;
            }
          },
          function () {
            isDone = true;
            values[1] && o.onCompleted();
          }),
        subject.subscribe(
          function (x) {
            next(x, 1);
          },
          function (e) { o.onError(e); },
          function () {
            isDone = true;
            next(true, 1);
          })
        );
    }, source);
  }

  var PausableBufferedObservable = (function (__super__) {

    inherits(PausableBufferedObservable, __super__);

    function subscribe(o) {
      var q = [], previousShouldFire;

      function drainQueue() { while (q.length > 0) { o.onNext(q.shift()); } }

      var subscription =
        combineLatestSource(
          this.source,
          this.pauser.startWith(false).distinctUntilChanged(),
          function (data, shouldFire) {
            return { data: data, shouldFire: shouldFire };
          })
          .subscribe(
            function (results) {
              if (previousShouldFire !== undefined && results.shouldFire != previousShouldFire) {
                previousShouldFire = results.shouldFire;
                // change in shouldFire
                if (results.shouldFire) { drainQueue(); }
              } else {
                previousShouldFire = results.shouldFire;
                // new data
                if (results.shouldFire) {
                  o.onNext(results.data);
                } else {
                  q.push(results.data);
                }
              }
            },
            function (err) {
              drainQueue();
              o.onError(err);
            },
            function () {
              drainQueue();
              o.onCompleted();
            }
          );
      return subscription;
    }

    function PausableBufferedObservable(source, pauser) {
      this.source = source;
      this.controller = new Subject();

      if (pauser && pauser.subscribe) {
        this.pauser = this.controller.merge(pauser);
      } else {
        this.pauser = this.controller;
      }

      __super__.call(this, subscribe, source);
    }

    PausableBufferedObservable.prototype.pause = function () {
      this.controller.onNext(false);
    };

    PausableBufferedObservable.prototype.resume = function () {
      this.controller.onNext(true);
    };

    return PausableBufferedObservable;

  }(Observable));

  /**
   * Pauses the underlying observable sequence based upon the observable sequence which yields true/false,
   * and yields the values that were buffered while paused.
   * @example
   * var pauser = new Rx.Subject();
   * var source = Rx.Observable.interval(100).pausableBuffered(pauser);
   * @param {Observable} pauser The observable sequence used to pause the underlying sequence.
   * @returns {Observable} The observable sequence which is paused based upon the pauser.
   */
  observableProto.pausableBuffered = function (subject) {
    return new PausableBufferedObservable(this, subject);
  };

var ControlledObservable = (function (__super__) {

  inherits(ControlledObservable, __super__);

  function subscribe (observer) {
    return this.source.subscribe(observer);
  }

  function ControlledObservable (source, enableQueue, scheduler) {
    __super__.call(this, subscribe, source);
    this.subject = new ControlledSubject(enableQueue, scheduler);
    this.source = source.multicast(this.subject).refCount();
  }

  ControlledObservable.prototype.request = function (numberOfItems) {
    return this.subject.request(numberOfItems == null ? -1 : numberOfItems);
  };

  return ControlledObservable;

}(Observable));

var ControlledSubject = (function (__super__) {

  function subscribe (observer) {
    return this.subject.subscribe(observer);
  }

  inherits(ControlledSubject, __super__);

  function ControlledSubject(enableQueue, scheduler) {
    enableQueue == null && (enableQueue = true);

    __super__.call(this, subscribe);
    this.subject = new Subject();
    this.enableQueue = enableQueue;
    this.queue = enableQueue ? [] : null;
    this.requestedCount = 0;
    this.requestedDisposable = null;
    this.error = null;
    this.hasFailed = false;
    this.hasCompleted = false;
    this.scheduler = scheduler || currentThreadScheduler;
  }

  addProperties(ControlledSubject.prototype, Observer, {
    onCompleted: function () {
      this.hasCompleted = true;
      if (!this.enableQueue || this.queue.length === 0) {
        this.subject.onCompleted();
        this.disposeCurrentRequest()
      } else {
        this.queue.push(Notification.createOnCompleted());
      }
    },
    onError: function (error) {
      this.hasFailed = true;
      this.error = error;
      if (!this.enableQueue || this.queue.length === 0) {
        this.subject.onError(error);
        this.disposeCurrentRequest()
      } else {
        this.queue.push(Notification.createOnError(error));
      }
    },
    onNext: function (value) {
      if (this.requestedCount <= 0) {
        this.enableQueue && this.queue.push(Notification.createOnNext(value));
      } else {
        (this.requestedCount-- === 0) && this.disposeCurrentRequest();
        this.subject.onNext(value);
      }
    },
    _processRequest: function (numberOfItems) {
      if (this.enableQueue) {
        while (this.queue.length > 0 && (numberOfItems > 0 || this.queue[0].kind !== 'N')) {
          var first = this.queue.shift();
          first.accept(this.subject);
          if (first.kind === 'N') {
            numberOfItems--;
          } else {
            this.disposeCurrentRequest();
            this.queue = [];
          }
        }
      }

      return numberOfItems;
    },
    request: function (number) {
      this.disposeCurrentRequest();
      var self = this;

      this.requestedDisposable = this.scheduler.scheduleWithState(number,
      function(s, i) {
        var remaining = self._processRequest(i);
        var stopped = self.hasCompleted || self.hasFailed
        if (!stopped && remaining > 0) {
          self.requestedCount = remaining;

          return disposableCreate(function () {
            self.requestedCount = 0;
          });
            // Scheduled item is still in progress. Return a new
            // disposable to allow the request to be interrupted
            // via dispose.
        }
      });

      return this.requestedDisposable;
    },
    disposeCurrentRequest: function () {
      if (this.requestedDisposable) {
        this.requestedDisposable.dispose();
        this.requestedDisposable = null;
      }
    }
  });

  return ControlledSubject;
}(Observable));

/**
 * Attaches a controller to the observable sequence with the ability to queue.
 * @example
 * var source = Rx.Observable.interval(100).controlled();
 * source.request(3); // Reads 3 values
 * @param {bool} enableQueue truthy value to determine if values should be queued pending the next request
 * @param {Scheduler} scheduler determines how the requests will be scheduled
 * @returns {Observable} The observable sequence which only propagates values on request.
 */
observableProto.controlled = function (enableQueue, scheduler) {

  if (enableQueue && isScheduler(enableQueue)) {
      scheduler = enableQueue;
      enableQueue = true;
  }

  if (enableQueue == null) {  enableQueue = true; }
  return new ControlledObservable(this, enableQueue, scheduler);
};

  /**
   * Pipes the existing Observable sequence into a Node.js Stream.
   * @param {Stream} dest The destination Node.js stream.
   * @returns {Stream} The destination stream.
   */
  observableProto.pipe = function (dest) {
    var source = this.pausableBuffered();

    function onDrain() {
      source.resume();
    }

    dest.addListener('drain', onDrain);

    source.subscribe(
      function (x) {
        !dest.write(String(x)) && source.pause();
      },
      function (err) {
        dest.emit('error', err);
      },
      function () {
        // Hack check because STDIO is not closable
        !dest._isStdio && dest.end();
        dest.removeListener('drain', onDrain);
      });

    source.resume();

    return dest;
  };

  /**
   * Executes a transducer to transform the observable sequence
   * @param {Transducer} transducer A transducer to execute
   * @returns {Observable} An Observable sequence containing the results from the transducer.
   */
  observableProto.transduce = function(transducer) {
    var source = this;

    function transformForObserver(o) {
      return {
        '@@transducer/init': function() {
          return o;
        },
        '@@transducer/step': function(obs, input) {
          return obs.onNext(input);
        },
        '@@transducer/result': function(obs) {
          return obs.onCompleted();
        }
      };
    }

    return new AnonymousObservable(function(o) {
      var xform = transducer(transformForObserver(o));
      return source.subscribe(
        function(v) {
          var res = tryCatch(xform['@@transducer/step']).call(xform, o, v);
          if (res === errorObj) { o.onError(res.e); }
        },
        function (e) { o.onError(e); },
        function() { xform['@@transducer/result'](o); }
      );
    }, source);
  };

  var AnonymousObservable = Rx.AnonymousObservable = (function (__super__) {
    inherits(AnonymousObservable, __super__);

    // Fix subscriber to check for undefined or function returned to decorate as Disposable
    function fixSubscriber(subscriber) {
      return subscriber && isFunction(subscriber.dispose) ? subscriber :
        isFunction(subscriber) ? disposableCreate(subscriber) : disposableEmpty;
    }

    function setDisposable(s, state) {
      var ado = state[0], self = state[1];
      var sub = tryCatch(self.__subscribe).call(self, ado);

      if (sub === errorObj) {
        if(!ado.fail(errorObj.e)) { return thrower(errorObj.e); }
      }
      ado.setDisposable(fixSubscriber(sub));
    }

    function innerSubscribe(observer) {
      var ado = new AutoDetachObserver(observer), state = [ado, this];

      if (currentThreadScheduler.scheduleRequired()) {
        currentThreadScheduler.scheduleWithState(state, setDisposable);
      } else {
        setDisposable(null, state);
      }
      return ado;
    }

    function AnonymousObservable(subscribe, parent) {
      this.source = parent;
      this.__subscribe = subscribe;
      __super__.call(this, innerSubscribe);
    }

    return AnonymousObservable;

  }(Observable));

  var AutoDetachObserver = (function (__super__) {
    inherits(AutoDetachObserver, __super__);

    function AutoDetachObserver(observer) {
      __super__.call(this);
      this.observer = observer;
      this.m = new SingleAssignmentDisposable();
    }

    var AutoDetachObserverPrototype = AutoDetachObserver.prototype;

    AutoDetachObserverPrototype.next = function (value) {
      var result = tryCatch(this.observer.onNext).call(this.observer, value);
      if (result === errorObj) {
        this.dispose();
        thrower(result.e);
      }
    };

    AutoDetachObserverPrototype.error = function (err) {
      var result = tryCatch(this.observer.onError).call(this.observer, err);
      this.dispose();
      result === errorObj && thrower(result.e);
    };

    AutoDetachObserverPrototype.completed = function () {
      var result = tryCatch(this.observer.onCompleted).call(this.observer);
      this.dispose();
      result === errorObj && thrower(result.e);
    };

    AutoDetachObserverPrototype.setDisposable = function (value) { this.m.setDisposable(value); };
    AutoDetachObserverPrototype.getDisposable = function () { return this.m.getDisposable(); };

    AutoDetachObserverPrototype.dispose = function () {
      __super__.prototype.dispose.call(this);
      this.m.dispose();
    };

    return AutoDetachObserver;
  }(AbstractObserver));

  var InnerSubscription = function (subject, observer) {
    this.subject = subject;
    this.observer = observer;
  };

  InnerSubscription.prototype.dispose = function () {
    if (!this.subject.isDisposed && this.observer !== null) {
      var idx = this.subject.observers.indexOf(this.observer);
      this.subject.observers.splice(idx, 1);
      this.observer = null;
    }
  };

  /**
   *  Represents an object that is both an observable sequence as well as an observer.
   *  Each notification is broadcasted to all subscribed observers.
   */
  var Subject = Rx.Subject = (function (__super__) {
    function subscribe(observer) {
      checkDisposed(this);
      if (!this.isStopped) {
        this.observers.push(observer);
        return new InnerSubscription(this, observer);
      }
      if (this.hasError) {
        observer.onError(this.error);
        return disposableEmpty;
      }
      observer.onCompleted();
      return disposableEmpty;
    }

    inherits(Subject, __super__);

    /**
     * Creates a subject.
     */
    function Subject() {
      __super__.call(this, subscribe);
      this.isDisposed = false,
      this.isStopped = false,
      this.observers = [];
      this.hasError = false;
    }

    addProperties(Subject.prototype, Observer.prototype, {
      /**
       * Indicates whether the subject has observers subscribed to it.
       * @returns {Boolean} Indicates whether the subject has observers subscribed to it.
       */
      hasObservers: function () { return this.observers.length > 0; },
      /**
       * Notifies all subscribed observers about the end of the sequence.
       */
      onCompleted: function () {
        checkDisposed(this);
        if (!this.isStopped) {
          this.isStopped = true;
          for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
            os[i].onCompleted();
          }

          this.observers.length = 0;
        }
      },
      /**
       * Notifies all subscribed observers about the exception.
       * @param {Mixed} error The exception to send to all observers.
       */
      onError: function (error) {
        checkDisposed(this);
        if (!this.isStopped) {
          this.isStopped = true;
          this.error = error;
          this.hasError = true;
          for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
            os[i].onError(error);
          }

          this.observers.length = 0;
        }
      },
      /**
       * Notifies all subscribed observers about the arrival of the specified element in the sequence.
       * @param {Mixed} value The value to send to all observers.
       */
      onNext: function (value) {
        checkDisposed(this);
        if (!this.isStopped) {
          for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
            os[i].onNext(value);
          }
        }
      },
      /**
       * Unsubscribe all observers and release resources.
       */
      dispose: function () {
        this.isDisposed = true;
        this.observers = null;
      }
    });

    /**
     * Creates a subject from the specified observer and observable.
     * @param {Observer} observer The observer used to send messages to the subject.
     * @param {Observable} observable The observable used to subscribe to messages sent from the subject.
     * @returns {Subject} Subject implemented using the given observer and observable.
     */
    Subject.create = function (observer, observable) {
      return new AnonymousSubject(observer, observable);
    };

    return Subject;
  }(Observable));

  /**
   *  Represents the result of an asynchronous operation.
   *  The last value before the OnCompleted notification, or the error received through OnError, is sent to all subscribed observers.
   */
  var AsyncSubject = Rx.AsyncSubject = (function (__super__) {

    function subscribe(observer) {
      checkDisposed(this);

      if (!this.isStopped) {
        this.observers.push(observer);
        return new InnerSubscription(this, observer);
      }

      if (this.hasError) {
        observer.onError(this.error);
      } else if (this.hasValue) {
        observer.onNext(this.value);
        observer.onCompleted();
      } else {
        observer.onCompleted();
      }

      return disposableEmpty;
    }

    inherits(AsyncSubject, __super__);

    /**
     * Creates a subject that can only receive one value and that value is cached for all future observations.
     * @constructor
     */
    function AsyncSubject() {
      __super__.call(this, subscribe);

      this.isDisposed = false;
      this.isStopped = false;
      this.hasValue = false;
      this.observers = [];
      this.hasError = false;
    }

    addProperties(AsyncSubject.prototype, Observer, {
      /**
       * Indicates whether the subject has observers subscribed to it.
       * @returns {Boolean} Indicates whether the subject has observers subscribed to it.
       */
      hasObservers: function () {
        checkDisposed(this);
        return this.observers.length > 0;
      },
      /**
       * Notifies all subscribed observers about the end of the sequence, also causing the last received value to be sent out (if any).
       */
      onCompleted: function () {
        var i, len;
        checkDisposed(this);
        if (!this.isStopped) {
          this.isStopped = true;
          var os = cloneArray(this.observers), len = os.length;

          if (this.hasValue) {
            for (i = 0; i < len; i++) {
              var o = os[i];
              o.onNext(this.value);
              o.onCompleted();
            }
          } else {
            for (i = 0; i < len; i++) {
              os[i].onCompleted();
            }
          }

          this.observers.length = 0;
        }
      },
      /**
       * Notifies all subscribed observers about the error.
       * @param {Mixed} error The Error to send to all observers.
       */
      onError: function (error) {
        checkDisposed(this);
        if (!this.isStopped) {
          this.isStopped = true;
          this.hasError = true;
          this.error = error;

          for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
            os[i].onError(error);
          }

          this.observers.length = 0;
        }
      },
      /**
       * Sends a value to the subject. The last value received before successful termination will be sent to all subscribed and future observers.
       * @param {Mixed} value The value to store in the subject.
       */
      onNext: function (value) {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.value = value;
        this.hasValue = true;
      },
      /**
       * Unsubscribe all observers and release resources.
       */
      dispose: function () {
        this.isDisposed = true;
        this.observers = null;
        this.exception = null;
        this.value = null;
      }
    });

    return AsyncSubject;
  }(Observable));

  var AnonymousSubject = Rx.AnonymousSubject = (function (__super__) {
    inherits(AnonymousSubject, __super__);

    function subscribe(observer) {
      return this.observable.subscribe(observer);
    }

    function AnonymousSubject(observer, observable) {
      this.observer = observer;
      this.observable = observable;
      __super__.call(this, subscribe);
    }

    addProperties(AnonymousSubject.prototype, Observer.prototype, {
      onCompleted: function () {
        this.observer.onCompleted();
      },
      onError: function (error) {
        this.observer.onError(error);
      },
      onNext: function (value) {
        this.observer.onNext(value);
      }
    });

    return AnonymousSubject;
  }(Observable));

  /**
   *  Represents a value that changes over time.
   *  Observers can subscribe to the subject to receive the last (or initial) value and all subsequent notifications.
   */
  var BehaviorSubject = Rx.BehaviorSubject = (function (__super__) {
    function subscribe(observer) {
      checkDisposed(this);
      if (!this.isStopped) {
        this.observers.push(observer);
        observer.onNext(this.value);
        return new InnerSubscription(this, observer);
      }
      if (this.hasError) {
        observer.onError(this.error);
      } else {
        observer.onCompleted();
      }
      return disposableEmpty;
    }

    inherits(BehaviorSubject, __super__);

    /**
     *  Initializes a new instance of the BehaviorSubject class which creates a subject that caches its last value and starts with the specified value.
     *  @param {Mixed} value Initial value sent to observers when no other value has been received by the subject yet.
     */
    function BehaviorSubject(value) {
      __super__.call(this, subscribe);
      this.value = value,
      this.observers = [],
      this.isDisposed = false,
      this.isStopped = false,
      this.hasError = false;
    }

    addProperties(BehaviorSubject.prototype, Observer, {
      /**
       * Gets the current value or throws an exception.
       * Value is frozen after onCompleted is called.
       * After onError is called always throws the specified exception.
       * An exception is always thrown after dispose is called.
       * @returns {Mixed} The initial value passed to the constructor until onNext is called; after which, the last value passed to onNext.
       */
      getValue: function () {
          checkDisposed(this);
          if (this.hasError) {
              throw this.error;
          }
          return this.value;
      },
      /**
       * Indicates whether the subject has observers subscribed to it.
       * @returns {Boolean} Indicates whether the subject has observers subscribed to it.
       */
      hasObservers: function () { return this.observers.length > 0; },
      /**
       * Notifies all subscribed observers about the end of the sequence.
       */
      onCompleted: function () {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.isStopped = true;
        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          os[i].onCompleted();
        }

        this.observers.length = 0;
      },
      /**
       * Notifies all subscribed observers about the exception.
       * @param {Mixed} error The exception to send to all observers.
       */
      onError: function (error) {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.isStopped = true;
        this.hasError = true;
        this.error = error;

        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          os[i].onError(error);
        }

        this.observers.length = 0;
      },
      /**
       * Notifies all subscribed observers about the arrival of the specified element in the sequence.
       * @param {Mixed} value The value to send to all observers.
       */
      onNext: function (value) {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.value = value;
        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          os[i].onNext(value);
        }
      },
      /**
       * Unsubscribe all observers and release resources.
       */
      dispose: function () {
        this.isDisposed = true;
        this.observers = null;
        this.value = null;
        this.exception = null;
      }
    });

    return BehaviorSubject;
  }(Observable));

  /**
   * Represents an object that is both an observable sequence as well as an observer.
   * Each notification is broadcasted to all subscribed and future observers, subject to buffer trimming policies.
   */
  var ReplaySubject = Rx.ReplaySubject = (function (__super__) {

    var maxSafeInteger = Math.pow(2, 53) - 1;

    function createRemovableDisposable(subject, observer) {
      return disposableCreate(function () {
        observer.dispose();
        !subject.isDisposed && subject.observers.splice(subject.observers.indexOf(observer), 1);
      });
    }

    function subscribe(observer) {
      var so = new ScheduledObserver(this.scheduler, observer),
        subscription = createRemovableDisposable(this, so);
      checkDisposed(this);
      this._trim(this.scheduler.now());
      this.observers.push(so);

      for (var i = 0, len = this.q.length; i < len; i++) {
        so.onNext(this.q[i].value);
      }

      if (this.hasError) {
        so.onError(this.error);
      } else if (this.isStopped) {
        so.onCompleted();
      }

      so.ensureActive();
      return subscription;
    }

    inherits(ReplaySubject, __super__);

    /**
     *  Initializes a new instance of the ReplaySubject class with the specified buffer size, window size and scheduler.
     *  @param {Number} [bufferSize] Maximum element count of the replay buffer.
     *  @param {Number} [windowSize] Maximum time length of the replay buffer.
     *  @param {Scheduler} [scheduler] Scheduler the observers are invoked on.
     */
    function ReplaySubject(bufferSize, windowSize, scheduler) {
      this.bufferSize = bufferSize == null ? maxSafeInteger : bufferSize;
      this.windowSize = windowSize == null ? maxSafeInteger : windowSize;
      this.scheduler = scheduler || currentThreadScheduler;
      this.q = [];
      this.observers = [];
      this.isStopped = false;
      this.isDisposed = false;
      this.hasError = false;
      this.error = null;
      __super__.call(this, subscribe);
    }

    addProperties(ReplaySubject.prototype, Observer.prototype, {
      /**
       * Indicates whether the subject has observers subscribed to it.
       * @returns {Boolean} Indicates whether the subject has observers subscribed to it.
       */
      hasObservers: function () {
        return this.observers.length > 0;
      },
      _trim: function (now) {
        while (this.q.length > this.bufferSize) {
          this.q.shift();
        }
        while (this.q.length > 0 && (now - this.q[0].interval) > this.windowSize) {
          this.q.shift();
        }
      },
      /**
       * Notifies all subscribed observers about the arrival of the specified element in the sequence.
       * @param {Mixed} value The value to send to all observers.
       */
      onNext: function (value) {
        checkDisposed(this);
        if (this.isStopped) { return; }
        var now = this.scheduler.now();
        this.q.push({ interval: now, value: value });
        this._trim(now);

        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          var observer = os[i];
          observer.onNext(value);
          observer.ensureActive();
        }
      },
      /**
       * Notifies all subscribed observers about the exception.
       * @param {Mixed} error The exception to send to all observers.
       */
      onError: function (error) {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.isStopped = true;
        this.error = error;
        this.hasError = true;
        var now = this.scheduler.now();
        this._trim(now);
        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          var observer = os[i];
          observer.onError(error);
          observer.ensureActive();
        }
        this.observers.length = 0;
      },
      /**
       * Notifies all subscribed observers about the end of the sequence.
       */
      onCompleted: function () {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.isStopped = true;
        var now = this.scheduler.now();
        this._trim(now);
        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          var observer = os[i];
          observer.onCompleted();
          observer.ensureActive();
        }
        this.observers.length = 0;
      },
      /**
       * Unsubscribe all observers and release resources.
       */
      dispose: function () {
        this.isDisposed = true;
        this.observers = null;
      }
    });

    return ReplaySubject;
  }(Observable));

  /**
  * Used to pause and resume streams.
  */
  Rx.Pauser = (function (__super__) {
    inherits(Pauser, __super__);

    function Pauser() {
      __super__.call(this);
    }

    /**
     * Pauses the underlying sequence.
     */
    Pauser.prototype.pause = function () { this.onNext(false); };

    /**
    * Resumes the underlying sequence.
    */
    Pauser.prototype.resume = function () { this.onNext(true); };

    return Pauser;
  }(Subject));

  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
    root.Rx = Rx;

    define(function() {
      return Rx;
    });
  } else if (freeExports && freeModule) {
    // in Node.js or RingoJS
    if (moduleExports) {
      (freeModule.exports = Rx).Rx = Rx;
    } else {
      freeExports.Rx = Rx;
    }
  } else {
    // in a browser or Rhino
    root.Rx = Rx;
  }

  // All code before this point will be filtered from stack traces.
  var rEndingLine = captureLine();

}.call(this));

}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"_process":215}],552:[function(require,module,exports){
'use strict';
var ansiRegex = require('ansi-regex')();

module.exports = function (str) {
	return typeof str === 'string' ? str.replace(ansiRegex, '') : str;
};

},{"ansi-regex":529}],553:[function(require,module,exports){
(function (process){
var Stream = require('stream')

// through
//
// a stream that does nothing but re-emit the input.
// useful for aggregating a series of changing but not ending streams into one stream)

exports = module.exports = through
through.through = through

//create a readable writable stream.

function through (write, end, opts) {
  write = write || function (data) { this.queue(data) }
  end = end || function () { this.queue(null) }

  var ended = false, destroyed = false, buffer = [], _ended = false
  var stream = new Stream()
  stream.readable = stream.writable = true
  stream.paused = false

//  stream.autoPause   = !(opts && opts.autoPause   === false)
  stream.autoDestroy = !(opts && opts.autoDestroy === false)

  stream.write = function (data) {
    write.call(this, data)
    return !stream.paused
  }

  function drain() {
    while(buffer.length && !stream.paused) {
      var data = buffer.shift()
      if(null === data)
        return stream.emit('end')
      else
        stream.emit('data', data)
    }
  }

  stream.queue = stream.push = function (data) {
//    console.error(ended)
    if(_ended) return stream
    if(data === null) _ended = true
    buffer.push(data)
    drain()
    return stream
  }

  //this will be registered as the first 'end' listener
  //must call destroy next tick, to make sure we're after any
  //stream piped from here.
  //this is only a problem if end is not emitted synchronously.
  //a nicer way to do this is to make sure this is the last listener for 'end'

  stream.on('end', function () {
    stream.readable = false
    if(!stream.writable && stream.autoDestroy)
      process.nextTick(function () {
        stream.destroy()
      })
  })

  function _end () {
    stream.writable = false
    end.call(stream)
    if(!stream.readable && stream.autoDestroy)
      stream.destroy()
  }

  stream.end = function (data) {
    if(ended) return
    ended = true
    if(arguments.length) stream.write(data)
    _end() // will emit or queue
    return stream
  }

  stream.destroy = function () {
    if(destroyed) return
    destroyed = true
    ended = true
    buffer.length = 0
    stream.writable = stream.readable = false
    stream.emit('close')
    return stream
  }

  stream.pause = function () {
    if(stream.paused) return
    stream.paused = true
    return stream
  }

  stream.resume = function () {
    if(stream.paused) {
      stream.paused = false
      stream.emit('resume')
    }
    drain()
    //may have become paused again,
    //as drain emits 'data'.
    if(!stream.paused)
      stream.emit('drain')
    return stream
  }
  return stream
}


}).call(this,require('_process'))
},{"_process":215,"stream":233}],554:[function(require,module,exports){
(function (process,__dirname){
var assert = require('assert')
var Completion = require('./lib/completion')
var Parser = require('./lib/parser')
var path = require('path')
var Usage = require('./lib/usage')
var Validation = require('./lib/validation')
var Y18n = require('y18n')

Argv(process.argv.slice(2))

var exports = module.exports = Argv
function Argv (processArgs, cwd) {
  processArgs = processArgs || [] // handle calling yargs().

  var self = {}
  var completion = null
  var usage = null
  var validation = null
  var y18n = Y18n({
    directory: path.resolve(__dirname, './locales'),
    updateFiles: false
  })

  if (!cwd) cwd = process.cwd()

  self.$0 = process.argv
    .slice(0, 2)
    .map(function (x, i) {
      // ignore the node bin, specify this in your
      // bin file with #!/usr/bin/env node
      if (i === 0 && /\b(node|iojs)$/.test(x)) return
      var b = rebase(cwd, x)
      return x.match(/^\//) && b.length < x.length ? b : x
    })
    .join(' ').trim()

  if (process.env._ !== undefined && process.argv[1] === process.env._) {
    self.$0 = process.env._.replace(
      path.dirname(process.execPath) + '/', ''
    )
  }

  var options
  self.resetOptions = self.reset = function () {
    // put yargs back into its initial
    // state, this is useful for creating a
    // nested CLI.
    options = {
      array: [],
      boolean: [],
      string: [],
      narg: {},
      key: {},
      alias: {},
      default: {},
      defaultDescription: {},
      choices: {},
      requiresArg: [],
      count: [],
      normalize: [],
      config: []
    }

    usage = Usage(self, y18n) // handle usage output.
    validation = Validation(self, usage, y18n) // handle arg validation.
    completion = Completion(self, usage)

    demanded = {}

    exitProcess = true
    strict = false
    helpOpt = null
    versionOpt = null
    commandHandlers = {}
    self.parsed = false

    return self
  }
  self.resetOptions()

  self.boolean = function (bools) {
    options.boolean.push.apply(options.boolean, [].concat(bools))
    return self
  }

  self.array = function (arrays) {
    options.array.push.apply(options.array, [].concat(arrays))
    return self
  }

  self.nargs = function (key, n) {
    if (typeof key === 'object') {
      Object.keys(key).forEach(function (k) {
        self.nargs(k, key[k])
      })
    } else {
      options.narg[key] = n
    }
    return self
  }

  self.choices = function (key, values) {
    if (typeof key === 'object') {
      Object.keys(key).forEach(function (k) {
        self.choices(k, key[k])
      })
    } else {
      options.choices[key] = (options.choices[key] || []).concat(values)
    }
    return self
  }

  self.normalize = function (strings) {
    options.normalize.push.apply(options.normalize, [].concat(strings))
    return self
  }

  self.config = function (key, msg) {
    self.describe(key, msg || usage.deferY18nLookup('Path to JSON config file'))
    options.config.push.apply(options.config, [].concat(key))
    return self
  }

  self.example = function (cmd, description) {
    usage.example(cmd, description)
    return self
  }

  self.command = function (cmd, description, fn) {
    if (description !== false) {
      usage.command(cmd, description)
    }
    if (fn) commandHandlers[cmd] = fn
    return self
  }

  var commandHandlers = {}
  self.getCommandHandlers = function () {
    return commandHandlers
  }

  self.string = function (strings) {
    options.string.push.apply(options.string, [].concat(strings))
    return self
  }

  self.default = function (key, value, defaultDescription) {
    if (typeof key === 'object') {
      Object.keys(key).forEach(function (k) {
        self.default(k, key[k])
      })
    } else {
      if (defaultDescription) options.defaultDescription[key] = defaultDescription
      if (typeof value === 'function') {
        if (!options.defaultDescription[key]) options.defaultDescription[key] = usage.functionDescription(value)
        value = value.call()
      }
      options.default[key] = value
    }
    return self
  }

  self.alias = function (x, y) {
    if (typeof x === 'object') {
      Object.keys(x).forEach(function (key) {
        self.alias(key, x[key])
      })
    } else {
      options.alias[x] = (options.alias[x] || []).concat(y)
    }
    return self
  }

  self.count = function (counts) {
    options.count.push.apply(options.count, [].concat(counts))
    return self
  }

  var demanded = {}
  self.demand = self.required = self.require = function (keys, max, msg) {
    // you can optionally provide a 'max' key,
    // which will raise an exception if too many '_'
    // options are provided.
    if (typeof max !== 'number') {
      msg = max
      max = Infinity
    }

    if (typeof keys === 'number') {
      if (!demanded._) demanded._ = { count: 0, msg: null, max: max }
      demanded._.count = keys
      demanded._.msg = msg
    } else if (Array.isArray(keys)) {
      keys.forEach(function (key) {
        self.demand(key, msg)
      })
    } else {
      if (typeof msg === 'string') {
        demanded[keys] = { msg: msg }
      } else if (msg === true || typeof msg === 'undefined') {
        demanded[keys] = { msg: undefined }
      }
    }

    return self
  }
  self.getDemanded = function () {
    return demanded
  }

  self.requiresArg = function (requiresArgs) {
    options.requiresArg.push.apply(options.requiresArg, [].concat(requiresArgs))
    return self
  }

  self.implies = function (key, value) {
    validation.implies(key, value)
    return self
  }

  self.usage = function (msg, opts) {
    if (!opts && typeof msg === 'object') {
      opts = msg
      msg = null
    }

    usage.usage(msg)

    if (opts) self.options(opts)

    return self
  }

  self.epilogue = self.epilog = function (msg) {
    usage.epilog(msg)
    return self
  }

  self.fail = function (f) {
    usage.failFn(f)
    return self
  }

  self.check = function (f) {
    validation.check(f)
    return self
  }

  self.defaults = self.default

  self.describe = function (key, desc) {
    options.key[key] = true
    usage.describe(key, desc)
    return self
  }

  self.parse = function (args) {
    return parseArgs(args)
  }

  self.option = self.options = function (key, opt) {
    if (typeof key === 'object') {
      Object.keys(key).forEach(function (k) {
        self.options(k, key[k])
      })
    } else {
      assert(typeof opt === 'object', 'second argument to option must be an object')

      options.key[key] = true // track manually set keys.

      if (opt.alias) self.alias(key, opt.alias)

      var demand = opt.demand || opt.required || opt.require

      if (demand) {
        self.demand(key, demand)
      } if ('config' in opt) {
        self.config(key)
      } if ('default' in opt) {
        self.default(key, opt.default)
      } if ('nargs' in opt) {
        self.nargs(key, opt.nargs)
      } if ('choices' in opt) {
        self.choices(key, opt.choices)
      } if (opt.boolean || opt.type === 'boolean') {
        self.boolean(key)
        if (opt.alias) self.boolean(opt.alias)
      } if (opt.array || opt.type === 'array') {
        self.array(key)
        if (opt.alias) self.array(opt.alias)
      } if (opt.string || opt.type === 'string') {
        self.string(key)
        if (opt.alias) self.string(opt.alias)
      } if (opt.count || opt.type === 'count') {
        self.count(key)
      } if (opt.defaultDescription) {
        options.defaultDescription[key] = opt.defaultDescription
      }

      var desc = opt.describe || opt.description || opt.desc
      if (desc) {
        self.describe(key, desc)
      }

      if (opt.requiresArg) {
        self.requiresArg(key)
      }
    }

    return self
  }
  self.getOptions = function () {
    return options
  }

  self.wrap = function (cols) {
    usage.wrap(cols)
    return self
  }

  var strict = false
  self.strict = function () {
    strict = true
    return self
  }
  self.getStrict = function () {
    return strict
  }

  self.showHelp = function (level) {
    if (!self.parsed) parseArgs(processArgs) // run parser, if it has not already been executed.
    usage.showHelp(level)
    return self
  }

  var versionOpt = null
  self.version = function (ver, opt, msg) {
    versionOpt = opt || 'version'
    usage.version(ver)
    self.boolean(versionOpt)
    self.describe(versionOpt, msg || usage.deferY18nLookup('Show version number'))
    return self
  }

  var helpOpt = null
  self.addHelpOpt = function (opt, msg) {
    helpOpt = opt
    self.boolean(opt)
    self.describe(opt, msg || usage.deferY18nLookup('Show help'))
    return self
  }

  self.showHelpOnFail = function (enabled, message) {
    usage.showHelpOnFail(enabled, message)
    return self
  }

  var exitProcess = true
  self.exitProcess = function (enabled) {
    if (typeof enabled !== 'boolean') {
      enabled = true
    }
    exitProcess = enabled
    return self
  }
  self.getExitProcess = function () {
    return exitProcess
  }

  self.help = function () {
    if (arguments.length > 0) return self.addHelpOpt.apply(self, arguments)

    if (!self.parsed) parseArgs(processArgs) // run parser, if it has not already been executed.

    return usage.help()
  }

  var completionCommand = null
  self.completion = function (cmd, desc, fn) {
    // a function to execute when generating
    // completions can be provided as the second
    // or third argument to completion.
    if (typeof desc === 'function') {
      fn = desc
      desc = null
    }

    // register the completion command.
    completionCommand = cmd || 'completion'
    if (!desc && desc !== false) {
      desc = 'generate bash completion script'
    }
    self.command(completionCommand, desc)

    // a function can be provided
    if (fn) completion.registerFunction(fn)

    return self
  }

  self.showCompletionScript = function ($0) {
    $0 = $0 || self.$0
    console.log(completion.generateCompletionScript($0))
    return self
  }

  self.locale = function (locale) {
    if (arguments.length === 0) {
      guessLocale()
      return y18n.getLocale()
    }
    detectLocale = false
    y18n.setLocale(locale)
    return self
  }

  self.updateStrings = self.updateLocale = function (obj) {
    detectLocale = false
    y18n.updateLocale(obj)
    return self
  }

  var detectLocale = true
  self.detectLocale = function (detect) {
    detectLocale = detect
    return self
  }
  self.getDetectLocale = function () {
    return detectLocale
  }

  self.getUsageInstance = function () {
    return usage
  }

  self.getValidationInstance = function () {
    return validation
  }

  self.terminalWidth = function () {
    return require('window-size').width
  }

  Object.defineProperty(self, 'argv', {
    get: function () {
      var args = null

      try {
        args = parseArgs(processArgs)
      } catch (err) {
        usage.fail(err.message)
      }

      return args
    },
    enumerable: true
  })

  function parseArgs (args) {
    var parsed = Parser(args, options, y18n)
    var argv = parsed.argv
    var aliases = parsed.aliases

    argv.$0 = self.$0

    self.parsed = parsed

    guessLocale() // guess locale lazily, so that it can be turned off in chain.

    // while building up the argv object, there
    // are two passes through the parser. If completion
    // is being performed short-circuit on the first pass.
    if (completionCommand &&
      (process.argv.join(' ')).indexOf(completion.completionKey) !== -1 &&
      !argv[completion.completionKey]) {
      return argv
    }

    // if there's a handler associated with a
    // command defer processing to it.
    var handlerKeys = Object.keys(self.getCommandHandlers())
    for (var i = 0, command; (command = handlerKeys[i]) !== undefined; i++) {
      if (~argv._.indexOf(command)) {
        self.getCommandHandlers()[command](self.reset())
        return self.argv
      }
    }

    // generate a completion script for adding to ~/.bashrc.
    if (completionCommand && ~argv._.indexOf(completionCommand) && !argv[completion.completionKey]) {
      self.showCompletionScript()
      if (exitProcess) {
        process.exit(0)
      }
    }

    // we must run completions first, a user might
    // want to complete the --help or --version option.
    if (completion.completionKey in argv) {
      // we allow for asynchronous completions,
      // e.g., loading in a list of commands from an API.
      completion.getCompletion(function (completions) {
        ;(completions || []).forEach(function (completion) {
          console.log(completion)
        })

        if (exitProcess) {
          process.exit(0)
        }
      })
      return
    }

    var helpOrVersion = false
    Object.keys(argv).forEach(function (key) {
      if (key === helpOpt && argv[key]) {
        helpOrVersion = true
        self.showHelp('log')
        if (exitProcess) {
          process.exit(0)
        }
      } else if (key === versionOpt && argv[key]) {
        helpOrVersion = true
        usage.showVersion()
        if (exitProcess) {
          process.exit(0)
        }
      }
    })

    // If the help or version options where used and exitProcess is false,
    // we won't run validations
    if (!helpOrVersion) {
      if (parsed.error) throw parsed.error

      // if we're executed via bash completion, don't
      // bother with validation.
      if (!argv[completion.completionKey]) {
        validation.nonOptionCount(argv)
        validation.missingArgumentValue(argv)
        validation.requiredArguments(argv)
        if (strict) validation.unknownArguments(argv, aliases)
        validation.customChecks(argv, aliases)
        validation.limitedChoices(argv)
        validation.implications(argv)
      }
    }

    setPlaceholderKeys(argv)

    return argv
  }

  function guessLocale () {
    if (!detectLocale) return

    try {
      var osLocale = require('os-locale')
      self.locale(osLocale.sync({ spawn: false }))
    } catch (err) {
      // if we explode looking up locale just noop
      // we'll keep using the default language 'en'.
    }
  }

  function setPlaceholderKeys (argv) {
    Object.keys(options.key).forEach(function (key) {
      // don't set placeholder keys for dot
      // notation options 'foo.bar'.
      if (~key.indexOf('.')) return
      if (typeof argv[key] === 'undefined') argv[key] = undefined
    })
  }

  sigletonify(self)
  return self
}

// rebase an absolute path to a relative one with respect to a base directory
// exported for tests
exports.rebase = rebase
function rebase (base, dir) {
  return path.relative(base, dir)
}

/*  Hack an instance of Argv with process.argv into Argv
    so people can do
    require('yargs')(['--beeble=1','-z','zizzle']).argv
    to parse a list of args and
    require('yargs').argv
    to get a parsed version of process.argv.
*/
function sigletonify (inst) {
  Object.keys(inst).forEach(function (key) {
    if (key === 'argv') {
      Argv.__defineGetter__(key, inst.__lookupGetter__(key))
    } else {
      Argv[key] = typeof inst[key] === 'function' ? inst[key].bind(inst) : inst[key]
    }
  })
}

}).call(this,require('_process'),"/node_modules/pushrocks/node_modules/smartcli/node_modules/yargs")
},{"./lib/completion":555,"./lib/parser":556,"./lib/usage":557,"./lib/validation":558,"_process":215,"assert":3,"os-locale":570,"path":214,"window-size":574,"y18n":575}],555:[function(require,module,exports){
(function (process,__dirname){
var fs = require('fs')
var path = require('path')

// add bash completions to your
//  yargs-powered applications.
module.exports = function (yargs, usage) {
  var self = {
    completionKey: 'get-yargs-completions'
  }

  // get a list of completion commands.
  self.getCompletion = function (done) {
    var completions = []
    var current = process.argv[process.argv.length - 1]
    var previous = process.argv.slice(process.argv.indexOf('--' + self.completionKey) + 1)
    var argv = yargs.parse(previous)

    // a custom completion function can be provided
    // to completion().
    if (completionFunction) {
      if (completionFunction.length < 3) {
        var result = completionFunction(current, argv)

        // promise based completion function.
        if (typeof result.then === 'function') {
          return result.then(function (list) {
            process.nextTick(function () { done(list) })
          }).catch(function (err) {
            process.nextTick(function () { throw err })
          })
        }

        // synchronous completion function.
        return done(result)
      } else {
        // asynchronous completion function
        return completionFunction(current, argv, function (completions) {
          done(completions)
        })
      }
    }

    var handlers = yargs.getCommandHandlers()
    for (var i = 0, ii = previous.length; i < ii; ++i) {
      if (handlers[previous[i]]) {
        return handlers[previous[i]](yargs.reset())
      }
    }

    if (!current.match(/^-/)) {
      usage.getCommands().forEach(function (command) {
        if (previous.indexOf(command[0]) === -1) {
          completions.push(command[0])
        }
      })
    }

    if (current.match(/^-/)) {
      Object.keys(yargs.getOptions().key).forEach(function (key) {
        completions.push('--' + key)
      })
    }

    done(completions)
  }

  // generate the completion script to add to your .bashrc.
  self.generateCompletionScript = function ($0) {
    var script = fs.readFileSync(
      path.resolve(__dirname, '../completion.sh.hbs'),
      'utf-8'
    )
    var name = path.basename($0)

    // add ./to applications not yet installed as bin.
    if ($0.match(/\.js$/)) $0 = './' + $0

    script = script.replace(/{{app_name}}/g, name)
    return script.replace(/{{app_path}}/g, $0)
  }

  // register a function to perform your own custom
  // completions., this function can be either
  // synchrnous or asynchronous.
  var completionFunction = null
  self.registerFunction = function (fn) {
    completionFunction = fn
  }

  return self
}

}).call(this,require('_process'),"/node_modules/pushrocks/node_modules/smartcli/node_modules/yargs/lib")
},{"_process":215,"fs":2,"path":214}],556:[function(require,module,exports){
(function (process){
// fancy-pants parsing of argv, originally forked
// from minimist: https://www.npmjs.com/package/minimist
var camelCase = require('camelcase')
var path = require('path')

function increment (orig) {
  return orig !== undefined ? orig + 1 : 0
}

module.exports = function (args, opts, y18n) {
  if (!opts) opts = {}

  var __ = y18n.__
  var error = null
  var flags = { arrays: {}, bools: {}, strings: {}, counts: {}, normalize: {}, configs: {}, defaulted: {} }

  ;[].concat(opts['array']).filter(Boolean).forEach(function (key) {
    flags.arrays[key] = true
  })

  ;[].concat(opts['boolean']).filter(Boolean).forEach(function (key) {
    flags.bools[key] = true
  })

  ;[].concat(opts.string).filter(Boolean).forEach(function (key) {
    flags.strings[key] = true
  })

  ;[].concat(opts.count).filter(Boolean).forEach(function (key) {
    flags.counts[key] = true
  })

  ;[].concat(opts.normalize).filter(Boolean).forEach(function (key) {
    flags.normalize[key] = true
  })

  ;[].concat(opts.config).filter(Boolean).forEach(function (key) {
    flags.configs[key] = true
  })

  var aliases = {}
  var newAliases = {}

  extendAliases(opts.key)
  extendAliases(opts.alias)

  var defaults = opts['default'] || {}
  Object.keys(defaults).forEach(function (key) {
    if (/-/.test(key) && !opts.alias[key]) {
      aliases[key] = aliases[key] || []
    }
    (aliases[key] || []).forEach(function (alias) {
      defaults[alias] = defaults[key]
    })
  })

  var argv = { _: [] }

  Object.keys(flags.bools).forEach(function (key) {
    setArg(key, !(key in defaults) ? false : defaults[key])
    setDefaulted(key)
  })

  var notFlags = []
  if (args.indexOf('--') !== -1) {
    notFlags = args.slice(args.indexOf('--') + 1)
    args = args.slice(0, args.indexOf('--'))
  }

  for (var i = 0; i < args.length; i++) {
    var arg = args[i]
    var broken
    var key
    var letters
    var m
    var next
    var value

    // -- seperated by =
    if (arg.match(/^--.+=/)) {
      // Using [\s\S] instead of . because js doesn't support the
      // 'dotall' regex modifier. See:
      // http://stackoverflow.com/a/1068308/13216
      m = arg.match(/^--([^=]+)=([\s\S]*)$/)

      // nargs format = '--f=monkey washing cat'
      if (checkAllAliases(m[1], opts.narg)) {
        args.splice(i + 1, m[1], m[2])
        i = eatNargs(i, m[1], args)
      // arrays format = '--f=a b c'
      } else if (checkAllAliases(m[1], flags.arrays) && args.length > i + 1) {
        args.splice(i + 1, m[1], m[2])
        i = eatArray(i, m[1], args)
      } else {
        setArg(m[1], m[2])
      }
    } else if (arg.match(/^--no-.+/)) {
      key = arg.match(/^--no-(.+)/)[1]
      setArg(key, false)

    // -- seperated by space.
    } else if (arg.match(/^--.+/)) {
      key = arg.match(/^--(.+)/)[1]

      // nargs format = '--foo a b c'
      if (checkAllAliases(key, opts.narg)) {
        i = eatNargs(i, key, args)
      // array format = '--foo a b c'
      } else if (checkAllAliases(key, flags.arrays) && args.length > i + 1) {
        i = eatArray(i, key, args)
      } else {
        next = args[i + 1]

        if (next !== undefined && !next.match(/^-/) &&
          !checkAllAliases(key, flags.bools) &&
          !checkAllAliases(key, flags.counts)) {
          setArg(key, next)
          i++
        } else if (/^(true|false)$/.test(next)) {
          setArg(key, next)
          i++
        } else {
          setArg(key, defaultForType(guessType(key, flags)))
        }
      }

    // dot-notation flag seperated by '='.
    } else if (arg.match(/^-.\..+=/)) {
      m = arg.match(/^-([^=]+)=([\s\S]*)$/)
      setArg(m[1], m[2])

    // dot-notation flag seperated by space.
    } else if (arg.match(/^-.\..+/)) {
      next = args[i + 1]
      key = arg.match(/^-(.\..+)/)[1]

      if (next !== undefined && !next.match(/^-/) &&
        !checkAllAliases(key, flags.bools) &&
        !checkAllAliases(key, flags.counts)) {
        setArg(key, next)
        i++
      } else {
        setArg(key, defaultForType(guessType(key, flags)))
      }
    } else if (arg.match(/^-[^-]+/)) {
      letters = arg.slice(1, -1).split('')
      broken = false

      for (var j = 0; j < letters.length; j++) {
        next = arg.slice(j + 2)

        if (letters[j + 1] && letters[j + 1] === '=') {
          value = arg.slice(j + 3)
          key = letters[j]

          // nargs format = '-f=monkey washing cat'
          if (checkAllAliases(letters[j], opts.narg)) {
            args.splice(i + 1, 0, value)
            i = eatNargs(i, key, args)
          // array format = '-f=a b c'
          } else if (checkAllAliases(key, flags.arrays) && args.length > i + 1) {
            args.splice(i + 1, 0, value)
            i = eatArray(i, key, args)
          } else {
            setArg(key, value)
          }

          broken = true
          break
        }

        if (next === '-') {
          setArg(letters[j], next)
          continue
        }

        if (/[A-Za-z]/.test(letters[j]) &&
          /-?\d+(\.\d*)?(e-?\d+)?$/.test(next)) {
          setArg(letters[j], next)
          broken = true
          break
        }

        if (letters[j + 1] && letters[j + 1].match(/\W/)) {
          setArg(letters[j], arg.slice(j + 2))
          broken = true
          break
        } else {
          setArg(letters[j], defaultForType(guessType(letters[j], flags)))
        }
      }

      key = arg.slice(-1)[0]

      if (!broken && key !== '-') {
        // nargs format = '-f a b c'
        if (checkAllAliases(key, opts.narg)) {
          i = eatNargs(i, key, args)
        // array format = '-f a b c'
        } else if (checkAllAliases(key, flags.arrays) && args.length > i + 1) {
          i = eatArray(i, key, args)
        } else {
          if (args[i + 1] && !/^(-|--)[^-]/.test(args[i + 1]) &&
            !checkAllAliases(key, flags.bools) &&
            !checkAllAliases(key, flags.counts)) {
            setArg(key, args[i + 1])
            i++
          } else if (args[i + 1] && /true|false/.test(args[i + 1])) {
            setArg(key, args[i + 1])
            i++
          } else {
            setArg(key, defaultForType(guessType(key, flags)))
          }
        }
      }
    } else {
      argv._.push(
        flags.strings['_'] || !isNumber(arg) ? arg : Number(arg)
      )
    }
  }

  setConfig(argv)
  applyDefaultsAndAliases(argv, aliases, defaults)

  Object.keys(flags.counts).forEach(function (key) {
    setArg(key, defaults[key])
  })

  notFlags.forEach(function (key) {
    argv._.push(key)
  })

  // how many arguments should we consume, based
  // on the nargs option?
  function eatNargs (i, key, args) {
    var toEat = checkAllAliases(key, opts.narg)

    if (args.length - (i + 1) < toEat) error = Error(__('Not enough arguments following: %s', key))

    for (var ii = i + 1; ii < (toEat + i + 1); ii++) {
      setArg(key, args[ii])
    }

    return (i + toEat)
  }

  // if an option is an array, eat all non-hyphenated arguments
  // following it... YUM!
  // e.g., --foo apple banana cat becomes ["apple", "banana", "cat"]
  function eatArray (i, key, args) {
    for (var ii = i + 1; ii < args.length; ii++) {
      if (/^-/.test(args[ii])) break
      i = ii
      setArg(key, args[ii])
    }

    return i
  }

  function setArg (key, val) {
    unsetDefaulted(key)

    // handle parsing boolean arguments --foo=true --bar false.
    if (checkAllAliases(key, flags.bools) || checkAllAliases(key, flags.counts)) {
      if (typeof val === 'string') val = val === 'true'
    }

    if (/-/.test(key) && !(aliases[key] && aliases[key].length)) {
      var c = camelCase(key)
      aliases[key] = [c]
      newAliases[c] = true
    }

    var value = !checkAllAliases(key, flags.strings) && isNumber(val) ? Number(val) : val

    if (checkAllAliases(key, flags.counts)) {
      value = increment
    }

    var splitKey = key.split('.')
    setKey(argv, splitKey, value)

    // alias references an inner-value within
    // a dot-notation object. see #279.
    if (~key.indexOf('.') && aliases[key]) {
      aliases[key].forEach(function (x) {
        x = x.split('.')
        setKey(argv, x, value)
      })
    }

    ;(aliases[splitKey[0]] || []).forEach(function (x) {
      x = x.split('.')

      // handle populating dot notation for both
      // the key and its aliases.
      if (splitKey.length > 1) {
        var a = [].concat(splitKey)
        a.shift() // nuke the old key.
        x = x.concat(a)
      }

      setKey(argv, x, value)
    })

    var keys = [key].concat(aliases[key] || [])
    for (var i = 0, l = keys.length; i < l; i++) {
      if (flags.normalize[keys[i]]) {
        keys.forEach(function (key) {
          argv.__defineSetter__(key, function (v) {
            val = path.normalize(v)
          })

          argv.__defineGetter__(key, function () {
            return typeof val === 'string' ? path.normalize(val) : val
          })
        })
        break
      }
    }
  }

  // set args from config.json file, this should be
  // applied last so that defaults can be applied.
  function setConfig (argv) {
    var configLookup = {}

    // expand defaults/aliases, in-case any happen to reference
    // the config.json file.
    applyDefaultsAndAliases(configLookup, aliases, defaults)

    Object.keys(flags.configs).forEach(function (configKey) {
      var configPath = argv[configKey] || configLookup[configKey]
      if (configPath) {
        try {
          var config = require(path.resolve(process.cwd(), configPath))

          Object.keys(config).forEach(function (key) {
            // setting arguments via CLI takes precedence over
            // values within the config file.
            if (argv[key] === undefined || (flags.defaulted[key])) {
              delete argv[key]
              setArg(key, config[key])
            }
          })
        } catch (ex) {
          if (argv[configKey]) error = Error(__('Invalid JSON config file: %s', configPath))
        }
      }
    })
  }

  function applyDefaultsAndAliases (obj, aliases, defaults) {
    Object.keys(defaults).forEach(function (key) {
      if (!hasKey(obj, key.split('.'))) {
        setKey(obj, key.split('.'), defaults[key])

        ;(aliases[key] || []).forEach(function (x) {
          if (hasKey(obj, x.split('.'))) return
          setKey(obj, x.split('.'), defaults[key])
        })
      }
    })
  }

  function hasKey (obj, keys) {
    var o = obj
    keys.slice(0, -1).forEach(function (key) {
      o = (o[key] || {})
    })

    var key = keys[keys.length - 1]

    if (typeof o !== 'object') return false
    else return key in o
  }

  function setKey (obj, keys, value) {
    var o = obj
    keys.slice(0, -1).forEach(function (key) {
      if (o[key] === undefined) o[key] = {}
      o = o[key]
    })

    var key = keys[keys.length - 1]
    if (value === increment) {
      o[key] = increment(o[key])
    } else if (o[key] === undefined && checkAllAliases(key, flags.arrays)) {
      o[key] = Array.isArray(value) ? value : [value]
    } else if (o[key] === undefined || typeof o[key] === 'boolean') {
      o[key] = value
    } else if (Array.isArray(o[key])) {
      o[key].push(value)
    } else {
      o[key] = [ o[key], value ]
    }
  }

  // extend the aliases list with inferred aliases.
  function extendAliases (obj) {
    Object.keys(obj || {}).forEach(function (key) {
      aliases[key] = [].concat(opts.alias[key] || [])
      // For "--option-name", also set argv.optionName
      aliases[key].concat(key).forEach(function (x) {
        if (/-/.test(x)) {
          var c = camelCase(x)
          aliases[key].push(c)
          newAliases[c] = true
        }
      })
      aliases[key].forEach(function (x) {
        aliases[x] = [key].concat(aliases[key].filter(function (y) {
          return x !== y
        }))
      })
    })
  }

  // check if a flag is set for any of a key's aliases.
  function checkAllAliases (key, flag) {
    var isSet = false
    var toCheck = [].concat(aliases[key] || [], key)

    toCheck.forEach(function (key) {
      if (flag[key]) isSet = flag[key]
    })

    return isSet
  }

  function setDefaulted (key) {
    [].concat(aliases[key] || [], key).forEach(function (k) {
      flags.defaulted[k] = true
    })
  }

  function unsetDefaulted (key) {
    [].concat(aliases[key] || [], key).forEach(function (k) {
      delete flags.defaulted[k]
    })
  }

  // return a default value, given the type of a flag.,
  // e.g., key of type 'string' will default to '', rather than 'true'.
  function defaultForType (type) {
    var def = {
      boolean: true,
      string: '',
      array: []
    }

    return def[type]
  }

  // given a flag, enforce a default type.
  function guessType (key, flags) {
    var type = 'boolean'

    if (flags.strings && flags.strings[key]) type = 'string'
    else if (flags.arrays && flags.arrays[key]) type = 'array'

    return type
  }

  function isNumber (x) {
    if (typeof x === 'number') return true
    if (/^0x[0-9a-f]+$/i.test(x)) return true
    return /^[-+]?(?:\d+(?:\.\d*)?|\.\d+)(e[-+]?\d+)?$/.test(x)
  }

  return {
    argv: argv,
    aliases: aliases,
    error: error,
    newAliases: newAliases
  }
}

}).call(this,require('_process'))
},{"_process":215,"camelcase":559,"path":214}],557:[function(require,module,exports){
(function (process){
// this file handles outputting usage instructions,
// failures, etc. keeps logging in one place.
var cliui = require('cliui')
var decamelize = require('decamelize')
var wsize = require('window-size')

module.exports = function (yargs, y18n) {
  var __ = y18n.__
  var self = {}

  // methods for ouputting/building failure message.
  var fails = []
  self.failFn = function (f) {
    fails.push(f)
  }

  var failMessage = null
  var showHelpOnFail = true
  self.showHelpOnFail = function (enabled, message) {
    if (typeof enabled === 'string') {
      message = enabled
      enabled = true
    } else if (typeof enabled === 'undefined') {
      enabled = true
    }
    failMessage = message
    showHelpOnFail = enabled
    return self
  }

  var failureOutput = false
  self.fail = function (msg) {
    if (fails.length) {
      fails.forEach(function (f) {
        f(msg)
      })
    } else {
      // don't output failure message more than once
      if (!failureOutput) {
        failureOutput = true
        if (showHelpOnFail) yargs.showHelp('error')
        if (msg) console.error(msg)
        if (failMessage) {
          if (msg) console.error('')
          console.error(failMessage)
        }
      }
      if (yargs.getExitProcess()) {
        process.exit(1)
      } else {
        throw new Error(msg)
      }
    }
  }

  // methods for ouputting/building help (usage) message.
  var usage
  self.usage = function (msg) {
    usage = msg
  }

  var examples = []
  self.example = function (cmd, description) {
    examples.push([cmd, description || ''])
  }

  var commands = []
  self.command = function (cmd, description) {
    commands.push([cmd, description || ''])
  }
  self.getCommands = function () {
    return commands
  }

  var descriptions = {}
  self.describe = function (key, desc) {
    if (typeof key === 'object') {
      Object.keys(key).forEach(function (k) {
        self.describe(k, key[k])
      })
    } else {
      descriptions[key] = desc
    }
  }
  self.getDescriptions = function () {
    return descriptions
  }

  var epilog
  self.epilog = function (msg) {
    epilog = msg
  }

  var wrap = windowWidth()
  self.wrap = function (cols) {
    wrap = cols
  }

  var deferY18nLookupPrefix = '__yargsString__:'
  self.deferY18nLookup = function (str) {
    return deferY18nLookupPrefix + str
  }

  self.help = function () {
    normalizeAliases()

    var demanded = yargs.getDemanded()
    var options = yargs.getOptions()
    var keys = Object.keys(
      Object.keys(descriptions)
      .concat(Object.keys(demanded))
      .concat(Object.keys(options.default))
      .reduce(function (acc, key) {
        if (key !== '_') acc[key] = true
        return acc
      }, {})
    )
    var ui = cliui({
      width: wrap,
      wrap: !!wrap
    })

    // the usage string.
    if (usage) {
      var u = usage.replace(/\$0/g, yargs.$0)
      ui.div(u + '\n')
    }

    // your application's commands, i.e., non-option
    // arguments populated in '_'.
    if (commands.length) {
      ui.div(__('Commands:'))

      commands.forEach(function (command) {
        ui.div(
          {text: command[0], padding: [0, 2, 0, 2], width: maxWidth(commands) + 4},
          {text: command[1]}
        )
      })

      ui.div()
    }

    // the options table.
    var aliasKeys = (Object.keys(options.alias) || [])
      .concat(Object.keys(yargs.parsed.newAliases) || [])

    keys = keys.filter(function (key) {
      return !yargs.parsed.newAliases[key] && aliasKeys.every(function (alias) {
        return (options.alias[alias] || []).indexOf(key) === -1
      })
    })

    var switches = keys.reduce(function (acc, key) {
      acc[key] = [ key ].concat(options.alias[key] || [])
      .map(function (sw) {
        return (sw.length > 1 ? '--' : '-') + sw
      })
      .join(', ')

      return acc
    }, {})

    if (keys.length) {
      ui.div(__('Options:'))

      keys.forEach(function (key) {
        var kswitch = switches[key]
        var desc = descriptions[key] || ''
        var type = null

        if (~desc.lastIndexOf(deferY18nLookupPrefix)) desc = __(desc.substring(deferY18nLookupPrefix.length))

        if (~options.boolean.indexOf(key)) type = '[' + __('boolean') + ']'
        if (~options.count.indexOf(key)) type = '[' + __('count') + ']'
        if (~options.string.indexOf(key)) type = '[' + __('string') + ']'
        if (~options.normalize.indexOf(key)) type = '[' + __('string') + ']'
        if (~options.array.indexOf(key)) type = '[' + __('array') + ']'

        var extra = [
          type,
          demanded[key] ? '[' + __('required') + ']' : null,
          options.choices && options.choices[key] ? '[' + __('choices:') + ' ' +
            self.stringifiedValues(options.choices[key]) + ']' : null,
          defaultString(options.default[key], options.defaultDescription[key])
        ].filter(Boolean).join(' ')

        ui.span(
          {text: kswitch, padding: [0, 2, 0, 2], width: maxWidth(switches) + 4},
          desc
        )

        if (extra) ui.div({text: extra, padding: [0, 0, 0, 2], align: 'right'})
        else ui.div()
      })

      ui.div()
    }

    // describe some common use-cases for your application.
    if (examples.length) {
      ui.div(__('Examples:'))

      examples.forEach(function (example) {
        example[0] = example[0].replace(/\$0/g, yargs.$0)
      })

      examples.forEach(function (example) {
        ui.div(
          {text: example[0], padding: [0, 2, 0, 2], width: maxWidth(examples) + 4},
          example[1]
        )
      })

      ui.div()
    }

    // the usage string.
    if (epilog) {
      var e = epilog.replace(/\$0/g, yargs.$0)
      ui.div(e + '\n')
    }

    return ui.toString()
  }

  // return the maximum width of a string
  // in the left-hand column of a table.
  function maxWidth (table) {
    var width = 0

    // table might be of the form [leftColumn],
    // or {key: leftColumn}}
    if (!Array.isArray(table)) {
      table = Object.keys(table).map(function (key) {
        return [table[key]]
      })
    }

    table.forEach(function (v) {
      width = Math.max(v[0].length, width)
    })

    // if we've enabled 'wrap' we should limit
    // the max-width of the left-column.
    if (wrap) width = Math.min(width, parseInt(wrap * 0.5, 10))

    return width
  }

  // make sure any options set for aliases,
  // are copied to the keys being aliased.
  function normalizeAliases () {
    var demanded = yargs.getDemanded()
    var options = yargs.getOptions()

    ;(Object.keys(options.alias) || []).forEach(function (key) {
      options.alias[key].forEach(function (alias) {
        // copy descriptions.
        if (descriptions[alias]) self.describe(key, descriptions[alias])
        // copy demanded.
        if (demanded[alias]) yargs.demand(key, demanded[alias].msg)

        // type messages.
        if (~options.boolean.indexOf(alias)) yargs.boolean(key)
        if (~options.count.indexOf(alias)) yargs.count(key)
        if (~options.string.indexOf(alias)) yargs.string(key)
        if (~options.normalize.indexOf(alias)) yargs.normalize(key)
        if (~options.array.indexOf(alias)) yargs.array(key)
      })
    })
  }

  self.showHelp = function (level) {
    level = level || 'error'
    console[level](self.help())
  }

  self.functionDescription = function (fn) {
    var description = fn.name ? decamelize(fn.name, '-') : __('generated-value')
    return ['(', description, ')'].join('')
  }

  self.stringifiedValues = function (values, separator) {
    var string = ''
    var sep = separator || ', '
    var array = [].concat(values)

    if (!values || !array.length) return string

    array.forEach(function (value) {
      if (string.length) string += sep
      string += JSON.stringify(value)
    })

    return string
  }

  // format the default-value-string displayed in
  // the right-hand column.
  function defaultString (value, defaultDescription) {
    var string = '[' + __('default:') + ' '

    if (value === undefined && !defaultDescription) return null

    if (defaultDescription) {
      string += defaultDescription
    } else {
      switch (typeof value) {
        case 'string':
          string += JSON.stringify(value)
          break
        case 'object':
          string += JSON.stringify(value)
          break
        default:
          string += value
      }
    }

    return string + ']'
  }

  // guess the width of the console window, max-width 80.
  function windowWidth () {
    return wsize.width ? Math.min(80, wsize.width) : null
  }

  // logic for displaying application version.
  var version = null
  self.version = function (ver, opt, msg) {
    version = ver
  }

  self.showVersion = function () {
    if (typeof version === 'function') console.log(version())
    else console.log(version)
  }

  return self
}

}).call(this,require('_process'))
},{"_process":215,"cliui":560,"decamelize":569,"window-size":574}],558:[function(require,module,exports){
// validation-type-stuff, missing params,
// bad implications, custom checks.
module.exports = function (yargs, usage, y18n) {
  var __ = y18n.__
  var __n = y18n.__n
  var self = {}

  // validate appropriate # of non-option
  // arguments were provided, i.e., '_'.
  self.nonOptionCount = function (argv) {
    var demanded = yargs.getDemanded()
    var _s = argv._.length

    if (demanded._ && (_s < demanded._.count || _s > demanded._.max)) {
      if (demanded._.msg !== undefined) {
        usage.fail(demanded._.msg)
      } else if (_s < demanded._.count) {
        usage.fail(
          __('Not enough non-option arguments: got %s, need at least %s', argv._.length, demanded._.count)
        )
      } else {
        usage.fail(
          __('Too many non-option arguments: got %s, maximum of %s', argv._.length, demanded._.max)
        )
      }
    }
  }

  // make sure that any args that require an
  // value (--foo=bar), have a value.
  self.missingArgumentValue = function (argv) {
    var defaultValues = [true, false, '']
    var options = yargs.getOptions()

    if (options.requiresArg.length > 0) {
      var missingRequiredArgs = []

      options.requiresArg.forEach(function (key) {
        var value = argv[key]

        // if a value is explicitly requested,
        // flag argument as missing if it does not
        // look like foo=bar was entered.
        if (~defaultValues.indexOf(value) ||
          (Array.isArray(value) && !value.length)) {
          missingRequiredArgs.push(key)
        }
      })

      if (missingRequiredArgs.length > 0) {
        usage.fail(__n(
          'Missing argument value: %s',
          'Missing argument values: %s',
          missingRequiredArgs.length,
          missingRequiredArgs.join(', ')
        ))
      }
    }
  }

  // make sure all the required arguments are present.
  self.requiredArguments = function (argv) {
    var demanded = yargs.getDemanded()
    var missing = null

    Object.keys(demanded).forEach(function (key) {
      if (!argv.hasOwnProperty(key)) {
        missing = missing || {}
        missing[key] = demanded[key]
      }
    })

    if (missing) {
      var customMsgs = []
      Object.keys(missing).forEach(function (key) {
        var msg = missing[key].msg
        if (msg && customMsgs.indexOf(msg) < 0) {
          customMsgs.push(msg)
        }
      })

      var customMsg = customMsgs.length ? '\n' + customMsgs.join('\n') : ''

      usage.fail(__n(
        'Missing required argument: %s',
        'Missing required arguments: %s',
        Object.keys(missing).length,
        Object.keys(missing).join(', ') + customMsg
      ))
    }
  }

  // check for unknown arguments (strict-mode).
  self.unknownArguments = function (argv, aliases) {
    var aliasLookup = {}
    var descriptions = usage.getDescriptions()
    var demanded = yargs.getDemanded()
    var unknown = []

    Object.keys(aliases).forEach(function (key) {
      aliases[key].forEach(function (alias) {
        aliasLookup[alias] = key
      })
    })

    Object.keys(argv).forEach(function (key) {
      if (key !== '$0' && key !== '_' &&
        !descriptions.hasOwnProperty(key) &&
        !demanded.hasOwnProperty(key) &&
        !aliasLookup.hasOwnProperty(key)) {
        unknown.push(key)
      }
    })

    if (unknown.length > 0) {
      usage.fail(__n(
        'Unknown argument: %s',
        'Unknown arguments: %s',
        unknown.length,
        unknown.join(', ')
      ))
    }
  }

  // validate arguments limited to enumerated choices
  self.limitedChoices = function (argv) {
    var options = yargs.getOptions()
    var invalid = {}

    if (!Object.keys(options.choices).length) return

    Object.keys(argv).forEach(function (key) {
      if (key !== '$0' && key !== '_' &&
        options.choices.hasOwnProperty(key)) {
        [].concat(argv[key]).forEach(function (value) {
          // TODO case-insensitive configurability
          if (options.choices[key].indexOf(value) === -1) {
            invalid[key] = (invalid[key] || []).concat(value)
          }
        })
      }
    })

    var invalidKeys = Object.keys(invalid)

    if (!invalidKeys.length) return

    var msg = __('Invalid values:')
    invalidKeys.forEach(function (key) {
      msg += '\n  ' + __(
        'Argument: %s, Given: %s, Choices: %s',
        key,
        usage.stringifiedValues(invalid[key]),
        usage.stringifiedValues(options.choices[key])
      )
    })
    usage.fail(msg)
  }

  // custom checks, added using the `check` option on yargs.
  var checks = []
  self.check = function (f) {
    checks.push(f)
  }

  self.customChecks = function (argv, aliases) {
    checks.forEach(function (f) {
      try {
        var result = f(argv, aliases)
        if (!result) {
          usage.fail(__('Argument check failed: %s', f.toString()))
        } else if (typeof result === 'string') {
          usage.fail(result)
        }
      } catch (err) {
        usage.fail(err.message ? err.message : err)
      }
    })
  }

  // check implications, argument foo implies => argument bar.
  var implied = {}
  self.implies = function (key, value) {
    if (typeof key === 'object') {
      Object.keys(key).forEach(function (k) {
        self.implies(k, key[k])
      })
    } else {
      implied[key] = value
    }
  }
  self.getImplied = function () {
    return implied
  }

  self.implications = function (argv) {
    var implyFail = []

    Object.keys(implied).forEach(function (key) {
      var num
      var origKey = key
      var value = implied[key]

      // convert string '1' to number 1
      num = Number(key)
      key = isNaN(num) ? key : num

      if (typeof key === 'number') {
        // check length of argv._
        key = argv._.length >= key
      } else if (key.match(/^--no-.+/)) {
        // check if key doesn't exist
        key = key.match(/^--no-(.+)/)[1]
        key = !argv[key]
      } else {
        // check if key exists
        key = argv[key]
      }

      num = Number(value)
      value = isNaN(num) ? value : num

      if (typeof value === 'number') {
        value = argv._.length >= value
      } else if (value.match(/^--no-.+/)) {
        value = value.match(/^--no-(.+)/)[1]
        value = !argv[value]
      } else {
        value = argv[value]
      }

      if (key && !value) {
        implyFail.push(origKey)
      }
    })

    if (implyFail.length) {
      var msg = __('Implications failed:') + '\n'

      implyFail.forEach(function (key) {
        msg += ('  ' + key + ' -> ' + implied[key])
      })

      usage.fail(msg)
    }
  }

  return self
}

},{}],559:[function(require,module,exports){
'use strict';
module.exports = function () {
	var str = [].map.call(arguments, function (str) {
		return str.trim();
	}).filter(function (str) {
		return str.length;
	}).join('-');

	if (!str.length) {
		return '';
	}

	if (str.length === 1 || !(/[_.\- ]+/).test(str) ) {
		if (str[0] === str[0].toLowerCase() && str.slice(1) !== str.slice(1).toLowerCase()) {
			return str;
		}

		return str.toLowerCase();
	}

	return str
	.replace(/^[_.\- ]+/, '')
	.toLowerCase()
	.replace(/[_.\- ]+(\w|$)/g, function (m, p1) {
		return p1.toUpperCase();
	});
};

},{}],560:[function(require,module,exports){
var stringWidth = require('string-width')
var stripAnsi = require('strip-ansi')
var wrap = require('wrap-ansi')
var align = {
  right: alignRight,
  center: alignCenter
}
var top = 0
var right = 1
var bottom = 2
var left = 3

function UI (opts) {
  this.width = opts.width
  this.wrap = opts.wrap
  this.rows = []
}

UI.prototype.span = function () {
  var cols = this.div.apply(this, arguments)
  cols.span = true
}

UI.prototype.div = function () {
  if (arguments.length === 0) this.div('')
  if (this.wrap && this._shouldApplyLayoutDSL.apply(this, arguments)) {
    return this._applyLayoutDSL(arguments[0])
  }

  var cols = []

  for (var i = 0, arg; (arg = arguments[i]) !== undefined; i++) {
    if (typeof arg === 'string') cols.push(this._colFromString(arg))
    else cols.push(arg)
  }

  this.rows.push(cols)
  return cols
}

UI.prototype._shouldApplyLayoutDSL = function () {
  return arguments.length === 1 && typeof arguments[0] === 'string' &&
    /[\t\n]/.test(arguments[0])
}

UI.prototype._applyLayoutDSL = function (str) {
  var _this = this
  var rows = str.split('\n')
  var leftColumnWidth = 0

  // simple heuristic for layout, make sure the
  // second column lines up along the left-hand.
  // don't allow the first column to take up more
  // than 50% of the screen.
  rows.forEach(function (row) {
    var columns = row.split('\t')
    if (columns.length > 1 && stringWidth(columns[0]) > leftColumnWidth) {
      leftColumnWidth = Math.min(
        Math.floor(_this.width * 0.5),
        stringWidth(columns[0])
      )
    }
  })

  // generate a table:
  //  replacing ' ' with padding calculations.
  //  using the algorithmically generated width.
  rows.forEach(function (row) {
    var columns = row.split('\t')
    _this.div.apply(_this, columns.map(function (r, i) {
      return {
        text: r.trim(),
        padding: _this._measurePadding(r),
        width: (i === 0 && columns.length > 1) ? leftColumnWidth : undefined
      }
    }))
  })

  return this.rows[this.rows.length - 1]
}

UI.prototype._colFromString = function (str) {
  return {
    text: str,
    padding: this._measurePadding(str)
  }
}

UI.prototype._measurePadding = function (str) {
  // measure padding without ansi escape codes
  var noAnsi = stripAnsi(str)
  return [0, noAnsi.match(/\s*$/)[0].length, 0, noAnsi.match(/^\s*/)[0].length]
}

UI.prototype.toString = function () {
  var _this = this
  var lines = []

  _this.rows.forEach(function (row, i) {
    _this.rowToString(row, lines)
  })

  // don't display any lines with the
  // hidden flag set.
  lines = lines.filter(function (line) {
    return !line.hidden
  })

  return lines.map(function (line) {
    return line.text
  }).join('\n')
}

UI.prototype.rowToString = function (row, lines) {
  var _this = this
  var padding
  var rrows = this._rasterize(row)
  var str = ''
  var ts
  var width
  var wrapWidth

  rrows.forEach(function (rrow, r) {
    str = ''
    rrow.forEach(function (col, c) {
      ts = '' // temporary string used during alignment/padding.
      width = row[c].width // the width with padding.
      wrapWidth = _this._negatePadding(row[c]) // the width without padding.

      ts += col

      for (var i = 0; i < wrapWidth - stringWidth(col); i++) {
        ts += ' '
      }

      // align the string within its column.
      if (row[c].align && row[c].align !== 'left' && _this.wrap) {
        ts = align[row[c].align](ts, wrapWidth)
        if (stringWidth(ts) < wrapWidth) ts += new Array(width - stringWidth(ts)).join(' ')
      }

      // add left/right padding and print string.
      padding = row[c].padding || [0, 0, 0, 0]
      if (padding[left]) str += new Array(padding[left] + 1).join(' ')
      str += ts
      if (padding[right]) str += new Array(padding[right] + 1).join(' ')

      // if prior row is span, try to render the
      // current row on the prior line.
      if (r === 0 && lines.length > 0) {
        str = _this._renderInline(str, lines[lines.length - 1])
      }
    })

    // remove trailing whitespace.
    lines.push({
      text: str.replace(/ +$/, ''),
      span: row.span
    })
  })

  return lines
}

// if the full 'source' can render in
// the target line, do so.
UI.prototype._renderInline = function (source, previousLine) {
  var leadingWhitespace = source.match(/^ */)[0].length
  var target = previousLine.text
  var targetTextWidth = stringWidth(target.trimRight())

  if (!previousLine.span) return source

  // if we're not applying wrapping logic,
  // just always append to the span.
  if (!this.wrap) {
    previousLine.hidden = true
    return target + source
  }

  if (leadingWhitespace < targetTextWidth) return source

  previousLine.hidden = true

  return target.trimRight() + new Array(leadingWhitespace - targetTextWidth + 1).join(' ') + source.trimLeft()
}

UI.prototype._rasterize = function (row) {
  var _this = this
  var i
  var rrow
  var rrows = []
  var widths = this._columnWidths(row)
  var wrapped

  // word wrap all columns, and create
  // a data-structure that is easy to rasterize.
  row.forEach(function (col, c) {
    // leave room for left and right padding.
    col.width = widths[c]
    if (_this.wrap) wrapped = wrap(col.text, _this._negatePadding(col), {hard: true}).split('\n')
    else wrapped = col.text.split('\n')

    // add top and bottom padding.
    if (col.padding) {
      for (i = 0; i < (col.padding[top] || 0); i++) wrapped.unshift('')
      for (i = 0; i < (col.padding[bottom] || 0); i++) wrapped.push('')
    }

    wrapped.forEach(function (str, r) {
      if (!rrows[r]) rrows.push([])

      rrow = rrows[r]

      for (var i = 0; i < c; i++) {
        if (rrow[i] === undefined) rrow.push('')
      }
      rrow.push(str)
    })
  })

  return rrows
}

UI.prototype._negatePadding = function (col) {
  var wrapWidth = col.width
  if (col.padding) wrapWidth -= (col.padding[left] || 0) + (col.padding[right] || 0)
  return wrapWidth
}

UI.prototype._columnWidths = function (row) {
  var _this = this
  var widths = []
  var unset = row.length
  var unsetWidth
  var remainingWidth = this.width

  // column widths can be set in config.
  row.forEach(function (col, i) {
    if (col.width) {
      unset--
      widths[i] = col.width
      remainingWidth -= col.width
    } else {
      widths[i] = undefined
    }
  })

  // any unset widths should be calculated.
  if (unset) unsetWidth = Math.floor(remainingWidth / unset)
  widths.forEach(function (w, i) {
    if (!_this.wrap) widths[i] = row[i].width || stringWidth(row[i].text)
    else if (w === undefined) widths[i] = Math.max(unsetWidth, _minWidth(row[i]))
  })

  return widths
}

// calculates the minimum width of
// a column, based on padding preferences.
function _minWidth (col) {
  var padding = col.padding || []

  return 1 + (padding[left] || 0) + (padding[right] || 0)
}

function alignRight (str, width) {
  str = str.trim()
  var padding = ''
  var strWidth = stringWidth(str)

  if (strWidth < width) {
    padding = new Array(width - strWidth + 1).join(' ')
  }

  return padding + str
}

function alignCenter (str, width) {
  str = str.trim()
  var padding = ''
  var strWidth = stringWidth(str.trim())

  if (strWidth < width) {
    padding = new Array(parseInt((width - strWidth) / 2, 10) + 1).join(' ')
  }

  return padding + str
}

module.exports = function (opts) {
  opts = opts || {}

  return new UI({
    width: (opts || {}).width || 80,
    wrap: typeof opts.wrap === 'boolean' ? opts.wrap : true
  })
}

},{"string-width":561,"strip-ansi":566,"wrap-ansi":568}],561:[function(require,module,exports){
'use strict';
var stripAnsi = require('strip-ansi');
var codePointAt = require('code-point-at');
var isFullwidthCodePoint = require('is-fullwidth-code-point');

// https://github.com/nodejs/io.js/blob/cff7300a578be1b10001f2d967aaedc88aee6402/lib/readline.js#L1345
module.exports = function (str) {
	if (typeof str !== 'string' || str.length === 0) {
		return 0;
	}

	var width = 0;

	str = stripAnsi(str);

	for (var i = 0; i < str.length; i++) {
		var code = codePointAt(str, i);

		// surrogates
		if (code >= 0x10000) {
			i++;
		}

		if (isFullwidthCodePoint(code)) {
			width += 2;
		} else {
			width++;
		}
	}

	return width;
};

},{"code-point-at":562,"is-fullwidth-code-point":564,"strip-ansi":566}],562:[function(require,module,exports){
arguments[4][543][0].apply(exports,arguments)
},{"dup":543,"number-is-nan":563}],563:[function(require,module,exports){
arguments[4][544][0].apply(exports,arguments)
},{"dup":544}],564:[function(require,module,exports){
arguments[4][545][0].apply(exports,arguments)
},{"dup":545,"number-is-nan":565}],565:[function(require,module,exports){
arguments[4][544][0].apply(exports,arguments)
},{"dup":544}],566:[function(require,module,exports){
arguments[4][552][0].apply(exports,arguments)
},{"ansi-regex":567,"dup":552}],567:[function(require,module,exports){
arguments[4][264][0].apply(exports,arguments)
},{"dup":264}],568:[function(require,module,exports){
'use strict';
var stringWidth = require('string-width');

var ESCAPES = [
	'\u001b',
	'\u009b'
];

var END_CODE = 39;

var ESCAPE_CODES = {
	0: 0,
	1: 22,
	2: 22,
	3: 23,
	4: 24,
	7: 27,
	8: 28,
	9: 29,
	30: 39,
	31: 39,
	32: 39,
	33: 39,
	34: 39,
	35: 39,
	36: 39,
	37: 39,
	90: 39,
	40: 49,
	41: 49,
	42: 49,
	43: 49,
	44: 49,
	45: 49,
	46: 49,
	47: 49
};

function wrapAnsi(code) {
	return ESCAPES[0] + '[' + code + 'm';
}

// calculate the length of words split on ' ', ignoring
// the extra characters added by ansi escape codes.
function wordLengths(str) {
	return str.split(' ').map(function (s) {
		return stringWidth(s);
	});
}

// wrap a long word across multiple rows.
// ansi escape codes do not count towards length.
function wrapWord(rows, word, cols) {
	var insideEscape = false;
	var visible = rows[rows.length - 1].length;

	for (var i = 0; i < word.length; i++) {
		var x = word[i];

		rows[rows.length - 1] += x;

		if (ESCAPES.indexOf(x) !== -1) {
			insideEscape = true;
		} else if (insideEscape && x === 'm') {
			insideEscape = false;
			continue;
		}

		if (insideEscape) {
			continue;
		}

		visible++;

		if (visible >= cols && i < word.length - 1) {
			rows.push('');
			visible = 0;
		}
	}

	// it's possible that the last row we copy over is only
	// ansi escape characters, handle this edge-case.
	if (!visible && rows[rows.length - 1].length > 0 && rows.length > 1) {
		rows[rows.length - 2] += rows.pop();
	}
}

// the wrap-ansi module can be invoked
// in either 'hard' or 'soft' wrap mode.
//
// 'hard' will never allow a string to take up more
// than cols characters.
//
// 'soft' allows long words to expand past the column length.
module.exports = function (str, cols, opts) {
	var options = opts || {};

	var pre = '';
	var ret = '';
	var escapeCode;

	var lengths = wordLengths(str);
	var words = str.split(' ');
	var rows = [''];

	for (var i = 0, word; (word = words[i]) !== undefined; i++) {
		var rowLength = stringWidth(rows[rows.length - 1]);

		if (rowLength) {
			rows[rows.length - 1] += ' ';
			rowLength++;
		}

		// in 'hard' wrap mode, the length of a line is
		// never allowed to extend past 'cols'.
		if (lengths[i] > cols && options.hard) {
			if (rowLength) {
				rows.push('');
			}
			wrapWord(rows, word, cols);
			continue;
		}

		if (rowLength + lengths[i] > cols && rowLength > 0) {
			rows.push('');
		}

		rows[rows.length - 1] += word;
	}

	pre = rows.map(function (r) {
		return r.trim();
	}).join('\n');

	for (var j = 0; j < pre.length; j++) {
		var y = pre[j];

		ret += y;

		if (ESCAPES.indexOf(y) !== -1) {
			var code = parseFloat(/[0-9][^m]*/.exec(pre.slice(j, j + 4)));
			escapeCode = code === END_CODE ? null : code;
		}

		if (escapeCode && ESCAPE_CODES[escapeCode]) {
			if (pre[j + 1] === '\n') {
				ret += wrapAnsi(ESCAPE_CODES[escapeCode]);
			} else if (y === '\n') {
				ret += wrapAnsi(escapeCode);
			}
		}
	}

	return ret;
};

},{"string-width":561}],569:[function(require,module,exports){
'use strict';
module.exports = function (str, sep) {
	if (typeof str !== 'string') {
		throw new TypeError('Expected a string');
	}

	return str.replace(/([a-z\d])([A-Z])/g, '$1' + (sep || '_') + '$2').toLowerCase();
};

},{}],570:[function(require,module,exports){
(function (process){
'use strict';
var childProcess = require('child_process');
var execFileSync = childProcess.execFileSync;
var lcid = require('lcid');
var defaultOpts = {spawn: true};
var cache;

function fallback() {
	cache = 'en_US';
	return cache;
}

function getEnvLocale(env) {
	env = env || process.env;
	var ret = env.LC_ALL || env.LC_MESSAGES || env.LANG || env.LANGUAGE;
	cache = getLocale(ret);
	return ret;
}

function parseLocale(x) {
	var env = x.split('\n').reduce(function (env, def) {
		def = def.split('=');
		env[def[0]] = def[1];
		return env;
	}, {});
	return getEnvLocale(env);
}

function getLocale(str) {
	return (str && str.replace(/[.:].*/, '')) || fallback();
}

module.exports = function (opts, cb) {
	if (typeof opts === 'function') {
		cb = opts;
		opts = defaultOpts;
	} else {
		opts = opts || defaultOpts;
	}

	if (cache || getEnvLocale() || opts.spawn === false) {
		setImmediate(cb, null, cache);
		return;
	}

	var getAppleLocale = function () {
		childProcess.execFile('defaults', ['read', '-g', 'AppleLocale'], function (err, stdout) {
			if (err) {
				fallback();
				return;
			}

			cache = stdout.trim() || fallback();
			cb(null, cache);
		});
	};

	if (process.platform === 'win32') {
		childProcess.execFile('wmic', ['os', 'get', 'locale'], function (err, stdout) {
			if (err) {
				fallback();
				return;
			}

			var lcidCode = parseInt(stdout.replace('Locale', ''), 16);
			cache = lcid.from(lcidCode) || fallback();
			cb(null, cache);
		});
	} else {
		childProcess.execFile('locale', function (err, stdout) {
			if (err) {
				fallback();
				return;
			}

			var res = parseLocale(stdout);

			if (!res && process.platform === 'darwin') {
				getAppleLocale();
				return;
			}

			cache = getLocale(res);
			cb(null, cache);
		});
	}
};

module.exports.sync = function (opts) {
	opts = opts || defaultOpts;

	if (cache || getEnvLocale() || !execFileSync || opts.spawn === false) {
		return cache;
	}

	if (process.platform === 'win32') {
		var stdout;

		try {
			stdout = execFileSync('wmic', ['os', 'get', 'locale'], {encoding: 'utf8'});
		} catch (err) {
			return fallback();
		}

		var lcidCode = parseInt(stdout.replace('Locale', ''), 16);
		cache = lcid.from(lcidCode) || fallback();
		return cache;
	}

	var res;

	try {
		res = parseLocale(execFileSync('locale', {encoding: 'utf8'}));
	} catch (err) {}

	if (!res && process.platform === 'darwin') {
		try {
			cache = execFileSync('defaults', ['read', '-g', 'AppleLocale'], {encoding: 'utf8'}).trim() || fallback();
			return cache;
		} catch (err) {
			return fallback();
		}
	}

	cache = getLocale(res);
	return cache;
};

}).call(this,require('_process'))
},{"_process":215,"child_process":2,"lcid":571}],571:[function(require,module,exports){
'use strict';
var invertKv = require('invert-kv');
var all = require('./lcid.json');
var inverted = invertKv(all);

exports.from = function (lcidCode) {
	if (typeof lcidCode !== 'number') {
		throw new TypeError('Expected a number');
	}

	return inverted[lcidCode];
};

exports.to = function (localeId) {
	if (typeof localeId !== 'string') {
		throw new TypeError('Expected a string');
	}

	return all[localeId];
};

exports.all = all;

},{"./lcid.json":572,"invert-kv":573}],572:[function(require,module,exports){
module.exports={
	"af_ZA": 1078,
	"am_ET": 1118,
	"ar_AE": 14337,
	"ar_BH": 15361,
	"ar_DZ": 5121,
	"ar_EG": 3073,
	"ar_IQ": 2049,
	"ar_JO": 11265,
	"ar_KW": 13313,
	"ar_LB": 12289,
	"ar_LY": 4097,
	"ar_MA": 6145,
	"ar_OM": 8193,
	"ar_QA": 16385,
	"ar_SA": 1025,
	"ar_SY": 10241,
	"ar_TN": 7169,
	"ar_YE": 9217,
	"arn_CL": 1146,
	"as_IN": 1101,
	"az_AZ": 2092,
	"ba_RU": 1133,
	"be_BY": 1059,
	"bg_BG": 1026,
	"bn_IN": 1093,
	"bo_BT": 2129,
	"bo_CN": 1105,
	"br_FR": 1150,
	"bs_BA": 8218,
	"ca_ES": 1027,
	"co_FR": 1155,
	"cs_CZ": 1029,
	"cy_GB": 1106,
	"da_DK": 1030,
	"de_AT": 3079,
	"de_CH": 2055,
	"de_DE": 1031,
	"de_LI": 5127,
	"de_LU": 4103,
	"div_MV": 1125,
	"dsb_DE": 2094,
	"el_GR": 1032,
	"en_AU": 3081,
	"en_BZ": 10249,
	"en_CA": 4105,
	"en_CB": 9225,
	"en_GB": 2057,
	"en_IE": 6153,
	"en_IN": 18441,
	"en_JA": 8201,
	"en_MY": 17417,
	"en_NZ": 5129,
	"en_PH": 13321,
	"en_TT": 11273,
	"en_US": 1033,
	"en_ZA": 7177,
	"en_ZW": 12297,
	"es_AR": 11274,
	"es_BO": 16394,
	"es_CL": 13322,
	"es_CO": 9226,
	"es_CR": 5130,
	"es_DO": 7178,
	"es_EC": 12298,
	"es_ES": 3082,
	"es_GT": 4106,
	"es_HN": 18442,
	"es_MX": 2058,
	"es_NI": 19466,
	"es_PA": 6154,
	"es_PE": 10250,
	"es_PR": 20490,
	"es_PY": 15370,
	"es_SV": 17418,
	"es_UR": 14346,
	"es_US": 21514,
	"es_VE": 8202,
	"et_EE": 1061,
	"eu_ES": 1069,
	"fa_IR": 1065,
	"fi_FI": 1035,
	"fil_PH": 1124,
	"fo_FO": 1080,
	"fr_BE": 2060,
	"fr_CA": 3084,
	"fr_CH": 4108,
	"fr_FR": 1036,
	"fr_LU": 5132,
	"fr_MC": 6156,
	"fy_NL": 1122,
	"ga_IE": 2108,
	"gbz_AF": 1164,
	"gl_ES": 1110,
	"gsw_FR": 1156,
	"gu_IN": 1095,
	"ha_NG": 1128,
	"he_IL": 1037,
	"hi_IN": 1081,
	"hr_BA": 4122,
	"hr_HR": 1050,
	"hu_HU": 1038,
	"hy_AM": 1067,
	"id_ID": 1057,
	"ii_CN": 1144,
	"is_IS": 1039,
	"it_CH": 2064,
	"it_IT": 1040,
	"iu_CA": 2141,
	"ja_JP": 1041,
	"ka_GE": 1079,
	"kh_KH": 1107,
	"kk_KZ": 1087,
	"kl_GL": 1135,
	"kn_IN": 1099,
	"ko_KR": 1042,
	"kok_IN": 1111,
	"ky_KG": 1088,
	"lb_LU": 1134,
	"lo_LA": 1108,
	"lt_LT": 1063,
	"lv_LV": 1062,
	"mi_NZ": 1153,
	"mk_MK": 1071,
	"ml_IN": 1100,
	"mn_CN": 2128,
	"mn_MN": 1104,
	"moh_CA": 1148,
	"mr_IN": 1102,
	"ms_BN": 2110,
	"ms_MY": 1086,
	"mt_MT": 1082,
	"my_MM": 1109,
	"nb_NO": 1044,
	"ne_NP": 1121,
	"nl_BE": 2067,
	"nl_NL": 1043,
	"nn_NO": 2068,
	"ns_ZA": 1132,
	"oc_FR": 1154,
	"or_IN": 1096,
	"pa_IN": 1094,
	"pl_PL": 1045,
	"ps_AF": 1123,
	"pt_BR": 1046,
	"pt_PT": 2070,
	"qut_GT": 1158,
	"quz_BO": 1131,
	"quz_EC": 2155,
	"quz_PE": 3179,
	"rm_CH": 1047,
	"ro_RO": 1048,
	"ru_RU": 1049,
	"rw_RW": 1159,
	"sa_IN": 1103,
	"sah_RU": 1157,
	"se_FI": 3131,
	"se_NO": 1083,
	"se_SE": 2107,
	"si_LK": 1115,
	"sk_SK": 1051,
	"sl_SI": 1060,
	"sma_NO": 6203,
	"sma_SE": 7227,
	"smj_NO": 4155,
	"smj_SE": 5179,
	"smn_FI": 9275,
	"sms_FI": 8251,
	"sq_AL": 1052,
	"sr_BA": 7194,
	"sr_SP": 3098,
	"sv_FI": 2077,
	"sv_SE": 1053,
	"sw_KE": 1089,
	"syr_SY": 1114,
	"ta_IN": 1097,
	"te_IN": 1098,
	"tg_TJ": 1064,
	"th_TH": 1054,
	"tk_TM": 1090,
	"tmz_DZ": 2143,
	"tn_ZA": 1074,
	"tr_TR": 1055,
	"tt_RU": 1092,
	"ug_CN": 1152,
	"uk_UA": 1058,
	"ur_IN": 2080,
	"ur_PK": 1056,
	"uz_UZ": 2115,
	"vi_VN": 1066,
	"wen_DE": 1070,
	"wo_SN": 1160,
	"xh_ZA": 1076,
	"yo_NG": 1130,
	"zh_CHS": 4,
	"zh_CHT": 31748,
	"zh_CN": 2052,
	"zh_HK": 3076,
	"zh_MO": 5124,
	"zh_SG": 4100,
	"zh_TW": 1028,
	"zu_ZA": 1077
}

},{}],573:[function(require,module,exports){
'use strict';
module.exports = function (obj) {
	if (typeof obj !== 'object') {
		throw new TypeError('Expected an object');
	}

	var ret = {};

	for (var key in obj) {
		var val = obj[key];
		ret[val] = key;
	}

	return ret;
};

},{}],574:[function(require,module,exports){
(function (process){
/*!
 * window-size <https://github.com/jonschlinkert/window-size>
 *
 * Copyright (c) 2014-2015 Jon Schlinkert
 * Licensed under the MIT license.
 */

const tty = require('tty');

module.exports = (function() {
  var width;
  var height;

  if(tty.isatty(1) && tty.isatty(2)) {
    if(process.stdout.getWindowSize) {
      width = process.stdout.getWindowSize(1)[0];
      height = process.stdout.getWindowSize(1)[1];
    } else if (tty.getWindowSize) {
      width = tty.getWindowSize()[1];
      height = tty.getWindowSize()[0];
    } else if (process.stdout.columns && process.stdout.rows) {
      height = process.stdout.columns;
      width = process.stdout.rows;
    }
  } else {
    new Error('window-size could not get size with tty or process.stdout.');
  }

  return {height: height, width: width};
})();
}).call(this,require('_process'))
},{"_process":215,"tty":244}],575:[function(require,module,exports){
var fs = require('fs')
var path = require('path')
var util = require('util')

function Y18N (opts) {
  // configurable options.
  opts = opts || {}
  this.directory = opts.directory || './locales'
  this.updateFiles = typeof opts.updateFiles === 'boolean' ? opts.updateFiles : true
  this.locale = opts.locale || 'en'
  this.fallbackToLanguage = typeof opts.fallbackToLanguage === 'boolean' ? opts.fallbackToLanguage : true

  // internal stuff.
  this.cache = {}
  this.writeQueue = []
}

Y18N.prototype.__ = function () {
  var args = Array.prototype.slice.call(arguments)
  var str = args.shift()
  var cb = function () {} // start with noop.

  if (typeof args[args.length - 1] === 'function') cb = args.pop()
  cb = cb || function () {} // noop.

  if (!this.cache[this.locale]) this._readLocaleFile()

  // we've observed a new string, update the language file.
  if (!this.cache[this.locale][str] && this.updateFiles) {
    this.cache[this.locale][str] = str

    // include the current directory and locale,
    // since these values could change before the
    // write is performed.
    this._enqueueWrite([this.directory, this.locale, cb])
  } else {
    cb()
  }

  return util.format.apply(util, [this.cache[this.locale][str] || str].concat(args))
}

Y18N.prototype._enqueueWrite = function (work) {
  this.writeQueue.push(work)
  if (this.writeQueue.length === 1) this._processWriteQueue()
}

Y18N.prototype._processWriteQueue = function () {
  var _this = this
  var work = this.writeQueue[0]

  // destructure the enqueued work.
  var directory = work[0]
  var locale = work[1]
  var cb = work[2]

  var languageFile = this._resolveLocaleFile(directory, locale)
  var serializedLocale = JSON.stringify(this.cache[locale], null, 2)

  fs.writeFile(languageFile, serializedLocale, 'utf-8', function (err) {
    _this.writeQueue.shift()
    if (_this.writeQueue.length > 0) _this._processWriteQueue()
    cb(err)
  })
}

Y18N.prototype._readLocaleFile = function () {
  var localeLookup = {}
  var languageFile = this._resolveLocaleFile(this.directory, this.locale)

  try {
    localeLookup = JSON.parse(fs.readFileSync(languageFile, 'utf-8'))
  } catch (err) {
    if (err instanceof SyntaxError) {
      err.message = 'syntax error in ' + languageFile
    }

    if (err.code === 'ENOENT') localeLookup = {}
    else throw err
  }

  this.cache[this.locale] = localeLookup
}

Y18N.prototype._resolveLocaleFile = function (directory, locale) {
  var file = path.resolve(directory, './', locale + '.json')
  if (this.fallbackToLanguage && !this._fileExistsSync(file) && ~locale.lastIndexOf('_')) {
    // attempt fallback to language only
    var languageFile = path.resolve(directory, './', locale.split('_')[0] + '.json')
    if (this._fileExistsSync(languageFile)) file = languageFile
  }
  return file
}

// this only exists because fs.existsSync() "will be deprecated"
// see https://nodejs.org/api/fs.html#fs_fs_existssync_path
Y18N.prototype._fileExistsSync = function (file) {
  try {
    return fs.statSync(file).isFile()
  } catch (err) {
    return false
  }
}

Y18N.prototype.__n = function () {
  var args = Array.prototype.slice.call(arguments)
  var singular = args.shift()
  var plural = args.shift()
  var quantity = args.shift()

  var cb = function () {} // start with noop.
  if (typeof args[args.length - 1] === 'function') cb = args.pop()

  if (!this.cache[this.locale]) this._readLocaleFile()

  var str = quantity === 1 ? singular : plural
  if (this.cache[this.locale][singular]) {
    str = this.cache[this.locale][singular][quantity === 1 ? 'one' : 'other']
  }

  // we've observed a new string, update the language file.
  if (!this.cache[this.locale][singular] && this.updateFiles) {
    this.cache[this.locale][singular] = {
      one: singular,
      other: plural
    }

    // include the current directory and locale,
    // since these values could change before the
    // write is performed.
    this._enqueueWrite([this.directory, this.locale, cb])
  } else {
    cb()
  }

  // if a %d placeholder is provided, add quantity
  // to the arguments expanded by util.format.
  var values = [str]
  if (~str.indexOf('%d')) values.push(quantity)

  return util.format.apply(util, values.concat(args))
}

Y18N.prototype.setLocale = function (locale) {
  this.locale = locale
}

Y18N.prototype.getLocale = function () {
  return this.locale
}

Y18N.prototype.updateLocale = function (obj) {
  if (!this.cache[this.locale]) this._readLocaleFile()

  for (var key in obj) {
    this.cache[this.locale][key] = obj[key]
  }
}

module.exports = function (opts) {
  var y18n = new Y18N(opts)

  // bind all functions to y18n, so that
  // they can be used in isolation.
  for (var key in y18n) {
    if (typeof y18n[key] === 'function') {
      y18n[key] = y18n[key].bind(y18n)
    }
  }

  return y18n
}

},{"fs":2,"path":214,"util":247}],576:[function(require,module,exports){
/// <reference path="typings/tsd.d.ts" />
var bl = require("beautylog");
/**
 * takes a parent object and a child object and adds it in smart ways.
 * @param parentObject parent Object
 * @param childParam child object to add
 * @param action defines the way in which the param is added
 * @param logBool {boolean} turns on logging
 * @returns {boolean} return true if something changes (like param is added), returns false in case nothing changes
 */
module.exports = function (parentObject, childParam, action, logBool) {
    if (action === void 0) { action = 'smartAdd'; }
    if (logBool === void 0) { logBool = false; }
    if (action = 'smartAdd') {
        if (parentObject.hasOwnProperty(childParam)) {
            if (logBool)
                bl.log("param " + childParam + " exists! Nothing changes!");
            return false;
        }
        else {
            if (logBool)
                bl.log('param does not exist, so we make it!');
            parentObject[childParam] = {};
            return true;
        }
    }
};

},{"beautylog":252}],577:[function(require,module,exports){
/// <reference path="typings/tsd.d.ts" />
var path = require("path");
var bl = require("beautylog");
/**
 *
 * @type {{getPath: (function(any): undefined)}}
 */
var smartpath = {
    getAbsPath: function (varPath, logBool) {
        if (logBool === void 0) { logBool = false; }
        var absPath = path.resolve(varPath);
        if (logBool == true) {
            bl.log('varPath is' + varPath);
            bl.log('absPath is' + absPath);
        }
        return absPath;
    }
};
module.exports = smartpath;

},{"beautylog":252,"path":214}],578:[function(require,module,exports){
/// <reference path="typings/tsd.d.ts" />
var path = require("path");
var openURL = require("open");
var smarturl = {};
smarturl.open = openURL;
module.exports = smarturl;

},{"open":579,"path":214}],579:[function(require,module,exports){
(function (process,__dirname){
var exec = require('child_process').exec
  , path = require('path')
  ;


/**
 * open a file or uri using the default application for the file type.
 *
 * @return {ChildProcess} - the child process object.
 * @param {string} target - the file/uri to open.
 * @param {string} appName - (optional) the application to be used to open the
 *      file (for example, "chrome", "firefox")
 * @param {function(Error)} callback - called with null on success, or
 *      an error object that contains a property 'code' with the exit
 *      code of the process.
 */

module.exports = open;

function open(target, appName, callback) {
  var opener;

  if (typeof(appName) === 'function') {
    callback = appName;
    appName = null;
  }

  switch (process.platform) {
  case 'darwin':
    if (appName) {
      opener = 'open -a "' + escape(appName) + '"';
    } else {
      opener = 'open';
    }
    break;
  case 'win32':
    // if the first parameter to start is quoted, it uses that as the title
    // so we pass a blank title so we can quote the file we are opening
    if (appName) {
      opener = 'start "" "' + escape(appName) + '"';
    } else {
      opener = 'start ""';
    }
    break;
  default:
    if (appName) {
      opener = escape(appName);
    } else {
      // use Portlands xdg-open everywhere else
      opener = path.join(__dirname, '../vendor/xdg-open');
    }
    break;
  }

  if (process.env.SUDO_USER) {
    opener = 'sudo -u ' + process.env.SUDO_USER + ' ' + opener;
  }
  return exec(opener + ' "' + escape(target) + '"', callback);
}

function escape(s) {
  return s.replace(/"/g, '\\\"');
}

}).call(this,require('_process'),"/node_modules/pushrocks/node_modules/smarturl/node_modules/open/lib")
},{"_process":215,"child_process":2,"path":214}]},{},[1]);