add extended variable checking

dist/index.d.ts

@@ -5,3 +5,4 @@ export * from './smarthbs.compile';
 import './smarthbs.helpers';
 export * from './smarthbs.partials';
 export * from './smarthbs.template';
+export * from './smarthbs.variables';

dist/index.js

@@ -9,4 +9,5 @@ __export(require("./smarthbs.compile"));
 require("./smarthbs.helpers");
 __export(require("./smarthbs.partials"));
 __export(require("./smarthbs.template"));
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiaW5kZXguanMiLCJzb3VyY2VSb290IjoiIiwic291cmNlcyI6WyIuLi90cy9pbmRleC50cyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiOzs7OztBQUFBLDhDQUE2QztBQUdsQyxRQUFBLFVBQVUsR0FBRyxPQUFPLENBQUMsVUFBVSxDQUFBO0FBQzFDLHdDQUFrQztBQUNsQyw4QkFBMkI7QUFDM0IseUNBQW1DO0FBQ25DLHlDQUFtQyJ9
+__export(require("./smarthbs.variables"));
+//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiaW5kZXguanMiLCJzb3VyY2VSb290IjoiIiwic291cmNlcyI6WyIuLi90cy9pbmRleC50cyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiOzs7OztBQUFBLDhDQUE2QztBQUdsQyxRQUFBLFVBQVUsR0FBRyxPQUFPLENBQUMsVUFBVSxDQUFBO0FBQzFDLHdDQUFrQztBQUNsQyw4QkFBMkI7QUFDM0IseUNBQW1DO0FBQ25DLHlDQUFtQztBQUNuQywwQ0FBb0MifQ==

dist/smarthbs.partials.d.ts

@@ -1,4 +1,4 @@
 /**
  * registers a directory of partials to make them available within handlebars compilation
  */
-export declare let registerPartialDir: (dirPathArg: string) => Promise<{}>;
+export declare let registerPartialDir: (dirPathArg: string) => Promise<any>;

dist/smarthbs.plugins.d.ts

@@ -1,6 +1,7 @@
 import 'typings-global';
 import * as handlebars from 'handlebars';
+import * as lodash from 'lodash';
+import * as path from 'path';
 import * as smartfile from 'smartfile';
 import * as smartq from 'smartq';
-import * as path from 'path';
-export { handlebars, smartfile, smartq, path };
+export { handlebars, lodash, path, smartfile, smartq };

dist/smarthbs.plugins.js

@@ -3,10 +3,12 @@ Object.defineProperty(exports, "__esModule", { value: true });
 require("typings-global");
 const handlebars = require("handlebars");
 exports.handlebars = handlebars;
+const lodash = require("lodash");
+exports.lodash = lodash;
+const path = require("path");
+exports.path = path;
 const smartfile = require("smartfile");
 exports.smartfile = smartfile;
 const smartq = require("smartq");
 exports.smartq = smartq;
-const path = require("path");
-exports.path = path;
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoic21hcnRoYnMucGx1Z2lucy5qcyIsInNvdXJjZVJvb3QiOiIiLCJzb3VyY2VzIjpbIi4uL3RzL3NtYXJ0aGJzLnBsdWdpbnMudHMiXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6Ijs7QUFBQSwwQkFBdUI7QUFDdkIseUNBQXdDO0FBTXRDLGdDQUFVO0FBTFosdUNBQXNDO0FBTXBDLDhCQUFTO0FBTFgsaUNBQWdDO0FBTTlCLHdCQUFNO0FBTFIsNkJBQTRCO0FBTTFCLG9CQUFJIn0=
+//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoic21hcnRoYnMucGx1Z2lucy5qcyIsInNvdXJjZVJvb3QiOiIiLCJzb3VyY2VzIjpbIi4uL3RzL3NtYXJ0aGJzLnBsdWdpbnMudHMiXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6Ijs7QUFBQSwwQkFBdUI7QUFDdkIseUNBQXdDO0FBT3RDLGdDQUFVO0FBTlosaUNBQWdDO0FBTzlCLHdCQUFNO0FBTlIsNkJBQTRCO0FBTzFCLG9CQUFJO0FBTk4sdUNBQXNDO0FBT3BDLDhCQUFTO0FBTlgsaUNBQWdDO0FBTzlCLHdCQUFNIn0=

dist/smarthbs.variables.d.ts

@@ -0,0 +1,11 @@
+/**
+ * finds all variables in a handlebars template
+ * @param hbsStringArg
+ */
+export declare let findVarsInHbsString: (hbsStringArg: string) => Promise<string[]>;
+/**
+ * checks if supplied variables satisfy an handlebars template
+ * @param hbsStringArg
+ * @param varObjectArg
+ */
+export declare let checkVarsSatisfaction: (hbsStringArg: string, varObjectArg: any) => Promise<string[]>;

dist/smarthbs.variables.js

@@ -0,0 +1,68 @@
+"use strict";
+// This file contains code that makes it easy to search handlebar templates for variables.
+// Why? To get a clue if you are missing some.
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const plugins = require("./smarthbs.plugins");
+// the curly regex objects
+let tripleCurlyRegex = /{{{\s*[\w\.]+\s*}}}/g;
+let doubleCurlyRegex = /{{\s*[\w\.]+\s*}}/g;
+let nameInCurlsRegex = /[\w\.]+/;
+/**
+ * finds all variables in a handlebars template
+ * @param hbsStringArg
+ */
+exports.findVarsInHbsString = (hbsStringArg) => __awaiter(this, void 0, void 0, function* () {
+    let hbsString = hbsStringArg; // make sure we have a new string object that we may destroy
+    let varNameArray = [];
+    let tripleCurlyMatches = hbsString.match(tripleCurlyRegex);
+    hbsString = hbsString.replace(tripleCurlyRegex, '[[[replaced]]]');
+    let doubleCurlyMatches = hbsString.match(doubleCurlyRegex);
+    hbsString = hbsString.replace(doubleCurlyRegex, '[[[replaced]]]');
+    varNameArray = plugins.lodash.concat(varNameArray, tripleCurlyMatches, doubleCurlyMatches)
+        .map((x) => {
+        return x.match(nameInCurlsRegex)[0];
+    });
+    varNameArray = plugins.lodash.uniq(varNameArray);
+    return varNameArray;
+});
+/**
+ * checks if supplied variables satisfy an handlebars template
+ * @param hbsStringArg
+ * @param varObjectArg
+ */
+exports.checkVarsSatisfaction = (hbsStringArg, varObjectArg) => __awaiter(this, void 0, void 0, function* () {
+    // required vars as combined deep string with . notation
+    let requiredVarStrings = yield exports.findVarsInHbsString(hbsStringArg);
+    // comparison objects
+    let suppliedVarsObject = varObjectArg;
+    let missingVarsObject = [];
+    // building the 
+    for (let stringVar of requiredVarStrings) {
+        let splittedVars = stringVar.split('.');
+        let requiredPointer = suppliedVarsObject;
+        for (let i = 0; i < splittedVars.length; i++) {
+            let splitVar = splittedVars[i];
+            let varAvailable = (requiredPointer[splitVar] !== undefined);
+            if (varAvailable && splittedVars.length === (i + 1)) {
+                // ok
+            }
+            else if (varAvailable) {
+                requiredPointer = requiredPointer[splitVar];
+            }
+            else {
+                missingVarsObject.push(stringVar);
+                i = splittedVars.length;
+            }
+        }
+    }
+    return missingVarsObject;
+});
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