source: frontend/node_modules/chalk/source/util.js

'use strict';

const stringReplaceAll = (string, substring, replacer) => {
        let index = string.indexOf(substring);
        if (index === -1) {
                return string;
        }

        const substringLength = substring.length;
        let endIndex = 0;
        let returnValue = '';
        do {
                returnValue += string.substr(endIndex, index - endIndex) + substring + replacer;
                endIndex = index + substringLength;
                index = string.indexOf(substring, endIndex);
        } while (index !== -1);

        returnValue += string.substr(endIndex);
        return returnValue;
};

const stringEncaseCRLFWithFirstIndex = (string, prefix, postfix, index) => {
        let endIndex = 0;
        let returnValue = '';
        do {
                const gotCR = string[index - 1] === '\r';
                returnValue += string.substr(endIndex, (gotCR ? index - 1 : index) - endIndex) + prefix + (gotCR ? '\r\n' : '\n') + postfix;
                endIndex = index + 1;
                index = string.indexOf('\n', endIndex);
        } while (index !== -1);

        returnValue += string.substr(endIndex);
        return returnValue;
};

module.exports = {
        stringReplaceAll,
        stringEncaseCRLFWithFirstIndex
};