yoastseo/build/languageProcessing/languages/en/helpers/getClauses.js

Yoast client-side content analysis

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = getEnglishClauses;
var _yoastseo = require("yoastseo");
var _Clause = _interopRequireDefault(require("../values/Clause"));
var _passiveVoiceAuxiliaries = _interopRequireDefault(require("../config/internal/passiveVoiceAuxiliaries.js"));
var _stopWords = _interopRequireDefault(require("../config/stopWords.js"));
var _lodash = require("lodash");
var _stripSpaces = _interopRequireDefault(require("../../../helpers/sanitize/stripSpaces"));
var _indices = require("../../../helpers/word/indices");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
const {
  createRegexFromArray,
  getClauses
} = _yoastseo.languageProcessing;
const options = {
  Clause: _Clause.default,
  stopwords: _stopWords.default,
  auxiliaries: _passiveVoiceAuxiliaries.default,
  ingExclusions: ["king", "cling", "ring", "being", "thing", "something", "anything"],
  regexes: {
    auxiliaryRegex: createRegexFromArray(_passiveVoiceAuxiliaries.default),
    stopCharacterRegex: /([:,]|('ll)|('ve))(?=[ \n\r\t'"+\-»«‹›<>])/ig,
    verbEndingInIngRegex: /\w+ing(?=$|[ \n\r\t.,'()"+\-;!?:/»«‹›<>])/ig
  },
  otherStopWordIndices: []
};

/**
 * Gets active verbs (ending in ing) to determine sentence breakers in English.
 *
 * @param {string} sentence The sentence to get the active verbs from.
 *
 * @returns {Array} The array with valid matches.
 */
const getVerbsEndingInIngIndices = function (sentence) {
  // Matches the sentences with words ending in ing.
  let matches = sentence.match(options.regexes.verbEndingInIngRegex) || [];
  // Filters out words ending in -ing that aren't verbs.
  matches = matches.filter(match => !(0, _lodash.includes)(options.ingExclusions, (0, _stripSpaces.default)(match)));
  return (0, _indices.getIndicesByWordList)(matches, sentence);
};

/**
 * Gets the clauses from a sentence by determining sentence breakers.
 *
 * @param {string} sentence The sentence to split up in clauses.
 *
 * @returns {Array} The array with all clauses that have an auxiliary.
 */
function getEnglishClauses(sentence) {
  options.otherStopWordIndices = getVerbsEndingInIngIndices(sentence);
  return getClauses(sentence, options);
}
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