asksuite-core/keyword_interpreter/keyword-util.js

const Knwl = require('knwl.js');
const knwlInstance = new Knwl('english');
knwlInstance.register('dates', require('./pt-br-date'));

const KeywordUtil = {};

KeywordUtil.removeDotsAndComma = function(string) {
  const regex = /[.,]/g;
  return string.replace(regex, '');
};

function str2slug(str) {
  str = str.toLowerCase();

  // remove accents, swap ñ for n, etc
  const from = 'àáäãâèéëêìíïîòóöôõùúüûñç';
  const to = 'aaaaaeeeeiiiiooooouuuunc';
  for (let i = 0, l = from.length; i < l; i++) {
    str = str.replace(new RegExp(from.charAt(i), 'g'), to.charAt(i));
  }
  // remove invalid chars

  return str;
}

KeywordUtil.removeSpecial = function(string) {
  const newString = string.replace(/[&#,+()$~%.'":*?<>{}]/g, ' ');
  let newStr = newString.replace(/\s+/g, ' ');
  newStr = str2slug(newStr);

  return newStr;
};

KeywordUtil.hasWordInString = function(string, words) {
  let value = false;

  if (words && words.length > 0) {
    string = KeywordUtil.removeDotsAndComma(string);
    const re = new RegExp('(\\s|^)(?:' + words.join('|') + ')(?=\\s|$)');

    const valueTemp = string.match(re);

    if (valueTemp) {
      value = valueTemp.length > 0;
    }
  }

  return value;
};

KeywordUtil.hasNumber = function(string) {
  return /\d/.test(string);
};

KeywordUtil.hasDate = function(string) {
  knwlInstance.init(string);
  const dates = knwlInstance.get('dates');
  return dates && dates.length > 0;
};

module.exports = KeywordUtil;