yoastseo/build/languageProcessing/helpers/passiveVoice/periphrastic/directPrecedenceException.js

Yoast client-side content analysis

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = _default;
var _lodash = require("lodash");
var _getWords = _interopRequireDefault(require("../../word/getWords"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
/**
 * Checks whether the participle is directly preceded by a word from the direct precedence exception list.
 * If this is the case, the clause is not passive.
 *
 * @param {string} clause 		The clause that contains the participle.
 * @param {string} participle   The participle.
 * @param {Array} cannotDirectlyPrecedePassiveParticipleList List of words which cannot directly precede a passive participle.
 *
 * @returns {boolean} Returns true if a word from the direct precedence exception list is directly preceding
 *                    the participle, otherwise returns false.
 */
function _default(clause, participle, cannotDirectlyPrecedePassiveParticipleList = []) {
  // Break the sentence part up into words and convert to lower case.
  const wordsInClause = (0, _getWords.default)(clause).map(word => word.toLowerCase());

  // Search the participle in the word list.
  const participleIndex = wordsInClause.indexOf(participle.toLowerCase());

  /*
   * There can be no exception in the following situations:
   *
   * -1 The participle is not found.
   *  0 There is no word before the participle.
   */
  if (participleIndex < 1) {
    return false;
  }
  const wordPrecedingParticiple = wordsInClause[participleIndex - 1];

  // Check if the word preceding the participle is in the exceptions list.
  return (0, _lodash.includes)(cannotDirectlyPrecedePassiveParticipleList, wordPrecedingParticiple);
}
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