| 1 | 'use strict';
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| 2 |
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| 3 | const stringReplaceAll = (string, substring, replacer) => {
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| 4 | let index = string.indexOf(substring);
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| 5 | if (index === -1) {
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| 6 | return string;
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| 7 | }
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| 8 |
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| 9 | const substringLength = substring.length;
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| 10 | let endIndex = 0;
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| 11 | let returnValue = '';
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| 12 | do {
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| 13 | returnValue += string.substr(endIndex, index - endIndex) + substring + replacer;
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| 14 | endIndex = index + substringLength;
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| 15 | index = string.indexOf(substring, endIndex);
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| 16 | } while (index !== -1);
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| 17 |
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| 18 | returnValue += string.substr(endIndex);
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| 19 | return returnValue;
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| 20 | };
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| 21 |
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| 22 | const stringEncaseCRLFWithFirstIndex = (string, prefix, postfix, index) => {
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| 23 | let endIndex = 0;
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| 24 | let returnValue = '';
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| 25 | do {
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| 26 | const gotCR = string[index - 1] === '\r';
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| 27 | returnValue += string.substr(endIndex, (gotCR ? index - 1 : index) - endIndex) + prefix + (gotCR ? '\r\n' : '\n') + postfix;
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| 28 | endIndex = index + 1;
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| 29 | index = string.indexOf('\n', endIndex);
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| 30 | } while (index !== -1);
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| 31 |
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| 32 | returnValue += string.substr(endIndex);
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| 33 | return returnValue;
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| 34 | };
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| 35 |
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| 36 | module.exports = {
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| 37 | stringReplaceAll,
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| 38 | stringEncaseCRLFWithFirstIndex
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| 39 | };
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