smartstring/dist/smartstring.indent.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/**
 * splits a string into an array
 * @param stringArg
 */
const splitStringAtLineBreak = (stringArg) => {
    let resultArray = stringArg.split('\n');
    return cleanStringArray(resultArray);
};
/**
 * joins a string together again
 * @param stringArrayArg
 */
const joinStringWithLineBreaks = (stringArrayArg) => {
    let resultString = '';
    for (let line of stringArrayArg) {
        resultString = resultString + line + '\n'; // add new line at end
    }
    return resultString;
};
/**
 * cleans first and last line in case they are empty
 * @param stringArrayArg
 */
const cleanStringArray = (stringArrayArg) => {
    let testRegex = /^[\s]*$/;
    if (testRegex.test(stringArrayArg[0])) {
        stringArrayArg.shift();
    }
    if (testRegex.test(stringArrayArg[stringArrayArg.length - 1])) {
        stringArrayArg.pop();
    }
    return stringArrayArg;
};
/**
 * indent an array
 * @param stringArg
 * @param spaceAmount
 */
exports.indent = (stringArg, spaceAmount) => {
    let localStringArray = splitStringAtLineBreak(stringArg);
    for (let stringArg of localStringArray) {
        stringArg = ' '.repeat(spaceAmount) + stringArg;
    }
    let resultString = joinStringWithLineBreaks(localStringArray);
    return resultString;
};
/**
 * indents a string with prefix
 * @param stringArg
 * @param prefixArg
 */
exports.indentWithPrefix = (stringArg, prefixArg) => {
    let resultString;
    let stringArray = splitStringAtLineBreak(stringArg);
    let resultArray = [];
    for (let stringItem of stringArray) {
        resultArray.push(prefixArg + stringItem);
    }
    resultString = joinStringWithLineBreaks(resultArray);
    return resultString;
};
exports.normalize = (stringArg) => {
    let resultString;
    let splitStringArray = splitStringAtLineBreak(stringArg);
    let minCommonLeftOffset;
    const deIndentRegex = /^(\s*)/;
    const emptyLineRegex = /^(\s*)$/;
    for (let stringItem of splitStringArray) {
        let offsetString = deIndentRegex.exec(stringItem)[1];
        if ((typeof minCommonLeftOffset === 'undefined' || offsetString.length < minCommonLeftOffset)
            && !emptyLineRegex.test(stringItem)) {
            minCommonLeftOffset = offsetString.length;
        }
    }
    ;
    let resultSplitStringArray = [];
    for (let stringItem of splitStringArray) {
        resultSplitStringArray.push(stringItem.substr(minCommonLeftOffset));
    }
    resultString = joinStringWithLineBreaks(resultSplitStringArray);
    return resultString;
};
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