yoastseo/build/languageProcessing/helpers/morphology/regexHelpers.js

Yoast client-side content analysis

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.applyAllReplacements = applyAllReplacements;
exports.doesWordMatchRegex = doesWordMatchRegex;
exports.searchAndReplaceWithRegex = searchAndReplaceWithRegex;
/**
 * Checks whether a word is matched with a regex.
 *
 * @param {string} word		The word to check.
 * @param {string} regex	The regex.
 *
 * @returns {boolean}		Whether or not there was a match.
 */
function doesWordMatchRegex(word, regex) {
  const regexObject = RegExp(regex);
  return regexObject.test(word);
}

/**
 * Loops through a nested array with pairs of regexes and replacements, and performs the needed replacement if a match is found.
 *
 * @param {string} word 						The word that may need to be modified.
 * @param {[][]} groupOfRegexAndReplacements 	The array with the regexes and the required replacements.
 *
 * @returns {?string} The modified stem or null if no match was found.
 */
function searchAndReplaceWithRegex(word, groupOfRegexAndReplacements) {
  for (const regexAndReplacement of groupOfRegexAndReplacements) {
    if (word.search(new RegExp(regexAndReplacement[0])) !== -1) {
      word = word.replace(new RegExp(regexAndReplacement[0]), regexAndReplacement[1]);
      return word;
    }
  }
}

/**
 * Loops through a nested array of regexes and replacement pairs, and applies all replacements for which a match is found.
 *
 * @param {string}  word                        The word that may need to be modified.
 * @param {[][]}    listOfRegexAndReplacement   The array with the regexes and the replacements.
 *
 * @returns {string} The modified word.
 */
function applyAllReplacements(word, listOfRegexAndReplacement) {
  listOfRegexAndReplacement.forEach(function (setOfRegexAndReplacement) {
    word = word.replace(new RegExp(setOfRegexAndReplacement[0]), setOfRegexAndReplacement[1]);
  });
  return word;
}
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