text: /*
   * Copyright (c) AXA Group Operations Spain S.A.
   *
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * "Software"), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   *
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
   * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  
  const AggressiveTokenizer = require('./aggressive-tokenizer');
  
  class AggressiveTokenizerEn extends AggressiveTokenizer {
    replace(text) {
      let result = text.replace(/n't([ ,:;.!?]|$)/gi, ' not ');
      result = result.replace(/can't([ ,:;.!?]|$)/gi, 'can not ');
      result = result.replace(/'ll([ ,:;.!?]|$)/gi, ' will ');
      result = result.replace(/'s([ ,:;.!?]|$)/gi, ' is ');
      result = result.replace(/'re([ ,:;.!?]|$)/gi, ' are ');
      result = result.replace(/'ve([ ,:;.!?]|$)/gi, ' have ');
      result = result.replace(/'m([ ,:;.!?]|$)/gi, ' am ');
      result = result.replace(/'d([ ,:;.!?]|$)/gi, ' had ');
      return result;
    }
  
    replaceContractions(arr) {
      const contractionsBase = {
        cannot: ['can', 'not'],
        gonna: ['going', 'to'],
        wanna: ['want', 'to'],
      };
  
      const result = [];
      arr.forEach(item => {
        const lowitem = item.toLowerCase();
        if (contractionsBase[lowitem]) {
          result.push(...contractionsBase[lowitem]);
        } else {
          result.push(item);
        }
      });
      return result;
    }
  
    tokenize(text) {
      const replaced = this.replace(text);
      const arr = this.trim(replaced.split(/\W+/));
      return this.replaceContractions(arr, text);
    }
  }
  
  module.exports = AggressiveTokenizerEn;
  