commonregex.js

(function(root, factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module.
    define(factory);
  } else if (typeof exports === 'object') {
    // CommonJS
    module.exports = factory();
  } else {
    // Browser globals
    root.CommonRegex = factory();
  }
}(this, function() {
  function CommonRegex(_text) {
    this.text = _text || '';

    if (_text !== undefined) {

      // Use lazy evaluation
      regexesNames.forEach(function(r) {
        Object.defineProperty(this, r, {
          get: function() {
            var propertyName = '_' + r;

            if(!this[propertyName]) {
              this[propertyName] = this.getMatches(this.text, CommonRegex.regexes[r]);
            }

            return this[propertyName];
          }
        });
      }.bind(this));
    }
  }

  /**
    * Used to get all the matches of a regex from a string
    * @param  {String} text  Text to look for the matches
    * @param  {Regexp} regex Regex to match the text
    * @return {Array}       Array of matches
    */
  CommonRegex.prototype.getMatches = function getMatches(_text, regex) {
    var text = _text || this.text;
    var matches = text.match(regex);

    return matches || [];
  };

  CommonRegex.regexes = {

    dates: (function() {
      function opt(regex) {
        return '(?:' + regex + ')?';
      }

      function group(regex) {
        return '(?:' + regex + ')';
      }

      function any(regexes) {
        return regexes.join('|');
      }

      var monthRegex = '(?:jan\\.?|january|feb\\.?|february|mar\\.?|march|apr\\.?|april|may|jun\\.?|june|jul\\.?|july|aug\\.?|august|sep\\.?|september|oct\\.?|october|nov\\.?|november|dec\\.?|december)';
      var dayRegex = '[0-3]?\\d(?:st|nd|rd|th)?';
      var yearRegex = '\\d{4}';

      var datesRegex = group(any([dayRegex + '\\s+(?:of\\s+)?' + monthRegex, monthRegex + '\\s+' + dayRegex])) + '(?:\\,)?\\s*' + opt(yearRegex) + '|[0-3]?\\d[-/][0-3]?\\d[-/]\\d{2,4}';

      return new RegExp(datesRegex, 'gim');
    }()),

    times: /\b((0?[0-9]|1[0-2])(:[0-5][0-9])?(am|pm)|([01]?[0-9]|2[0-3]):[0-5][0-9])/gim,

    phones: /(\d?[^\s\w]*(?:\(?\d{3}\)?\W*)?\d{3}\W*\d{4})/gim,

    links: /((?:https?:\/\/|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\((?:[^\s()<>]+|(?:\([^\s()<>]+\)))*\))+(?:\((?:[^\s()<>]+|(?:\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:\'".,<>?\xab\xbb\u201c\u201d\u2018\u2019]))/gim,

    emails: /([a-z0-9!#$%&'*+\/=?\^_`{|}~\-]+@([a-z0-9]+\.)+([a-z0-9]+))/gim,

    IPv4: /\b((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b/gm,

    IPv6: /((([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){6}:[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){5}:([0-9A-Fa-f]{1,4}:)?[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){4}:([0-9A-Fa-f]{1,4}:){0,2}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){3}:([0-9A-Fa-f]{1,4}:){0,3}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){2}:([0-9A-Fa-f]{1,4}:){0,4}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){6}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|(([0-9A-Fa-f]{1,4}:){0,5}:((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|(::([0-9A-Fa-f]{1,4}:){0,5}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|([0-9A-Fa-f]{1,4}::([0-9A-Fa-f]{1,4}:){0,5}[0-9A-Fa-f]{1,4})|(::([0-9A-Fa-f]{1,4}:){0,6}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){1,7}:))\b/gim,

    hexColors: /#(?:[0-9a-fA-F]{3}){1,2}\b/gim,

    acronyms: /\b(([A-Z]\.)+|([A-Z]){2,})/gm,

    money: /((^|\b)US?)?\$\s?[0-9]{1,3}((,[0-9]{3})+|([0-9]{3})+)?(\.[0-9]{1,2})?\b/gm,

    percentages: /(100(\.0+)?|[0-9]{1,2}(\.[0-9]+)?)%/gm,

    creditCards: /((?:(?:\d{4}[- ]){3}\d{4}|\d{16}))(?![\d])/gm,

    addresses: /\d{1,4} [\w\s]{1,20}(?:(street|avenue|road|highway|square|trail|drive|court|parkway|boulevard|circle)\b|(st|ave|rd|hwy|sq|trl|dr|ct|pkwy|blvd|cir)\.(?=\b)?)/gim
  };

  var regexesNames = Object.keys(CommonRegex.regexes);

  var capitalize = function capitalize(string) {
    return string.charAt(0).toUpperCase() + string.slice(1);
  };

  // Add a method relative to each one of the regexes
  regexesNames.forEach(function(r) {
    CommonRegex.prototype['get' + capitalize(r)] = function(text) {
      if(text) {
        return this.getMatches(text, CommonRegex.regexes[r]);
      }

      return this[r];
    };
  });

  return CommonRegex;
}));