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   1  /*
   2  ---
   3  
   4  script: String.Extras.js
   5  
   6  name: String.Extras
   7  
   8  description: Extends the String native object to include methods useful in managing various kinds of strings (query strings, urls, html, etc).
   9  
  10  license: MIT-style license
  11  
  12  authors:
  13    - Aaron Newton
  14    - Guillermo Rauch
  15    - Christopher Pitt
  16  
  17  requires:
  18    - Core/String
  19    - Core/$util
  20    - Core/Array
  21  
  22  provides: [String.Extras]
  23  
  24  ...
  25  */
  26  
  27  (function(){
  28  
  29  var special = {
  30      'a': '[àáâãäåăą]',
  31      'A': '[ÀÁÂÃÄÅĂĄ]',
  32      'c': '[ćčç]',
  33      'C': '[ĆČÇ]',
  34      'd': '[ďđ]',
  35      'D': '[ĎÐ]',
  36      'e': '[èéêëěę]',
  37      'E': '[ÈÉÊËĚĘ]',
  38      'g': '[ğ]',
  39      'G': '[Ğ]',
  40      'i': '[ìíîï]',
  41      'I': '[ÌÍÎÏ]',
  42      'l': '[ĺľł]',
  43      'L': '[ĹĽŁ]',
  44      'n': '[ñňń]',
  45      'N': '[ÑŇŃ]',
  46      'o': '[òóôõöøő]',
  47      'O': '[ÒÓÔÕÖØ]',
  48      'r': '[řŕ]',
  49      'R': '[ŘŔ]',
  50      's': '[ššş]',
  51      'S': '[ŠŞŚ]',
  52      't': '[ťţ]',
  53      'T': '[ŤŢ]',
  54      'ue': '[ü]',
  55      'UE': '[Ü]',
  56      'u': '[ùúûůµ]',
  57      'U': '[ÙÚÛŮ]',
  58      'y': '[ÿý]',
  59      'Y': '[ŸÝ]',
  60      'z': '[žźż]',
  61      'Z': '[ŽŹŻ]',
  62      'th': '[þ]',
  63      'TH': '[Þ]',
  64      'dh': '[ð]',
  65      'DH': '[Ð]',
  66      'ss': '[ß]',
  67      'oe': '[œ]',
  68      'OE': '[Œ]',
  69      'ae': '[æ]',
  70      'AE': '[Æ]'
  71  },
  72  
  73  tidy = {
  74      ' ': '[\xa0\u2002\u2003\u2009]',
  75      '*': '[\xb7]',
  76      '\'': '[\u2018\u2019]',
  77      '"': '[\u201c\u201d]',
  78      '...': '[\u2026]',
  79      '-': '[\u2013]',
  80      '--': '[\u2014]',
  81      '»': '[\uFFFD]'
  82  };
  83  
  84  function walk(string, replacements) {
  85      var result = string;
  86  
  87      for (key in replacements) {
  88          result = result.replace(new RegExp(replacements[key], 'g'), key);
  89      }
  90  
  91      return result;
  92  }
  93  
  94  function getRegForTag(tag, contents) {
  95      tag = tag || '';
  96      var regstr = contents ? "<" + tag + "(?!\\w)[^>]*>([\\s\\S]*?)<\/" + tag + "(?!\\w)>" : "<\/?" + tag + "([^>]+)?>";
  97      reg = new RegExp(regstr, "gi");
  98      return reg;
  99  };
 100  
 101  String.implement({
 102  
 103      standardize: function(){
 104          return walk(this, special);
 105      },
 106  
 107      repeat: function(times){
 108          return new Array(times + 1).join(this);
 109      },
 110  
 111      pad: function(length, str, dir){
 112          if (this.length >= length) return this;
 113          var pad = (str == null ? ' ' : '' + str).repeat(length - this.length).substr(0, length - this.length);
 114          if (!dir || dir == 'right') return this + pad;
 115          if (dir == 'left') return pad + this;
 116          return pad.substr(0, (pad.length / 2).floor()) + this + pad.substr(0, (pad.length / 2).ceil());
 117      },
 118  
 119      getTags: function(tag, contents){
 120          return this.match(getRegForTag(tag, contents)) || [];
 121      },
 122  
 123      stripTags: function(tag, contents){
 124          return this.replace(getRegForTag(tag, contents), '');
 125      },
 126  
 127      tidy: function(){
 128          return walk(this, tidy);
 129      }
 130  
 131  });
 132  
 133  })();