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   1  /*
   2   * FCKeditor - The text editor for internet
   3   * Copyright (C) 2003-2006 Frederico Caldeira Knabben
   4   * 
   5   * Licensed under the terms of the GNU Lesser General Public License:
   6   *         http://www.opensource.org/licenses/lgpl-license.php
   7   * 
   8   * For further information visit:
   9   *         http://www.fckeditor.net/
  10   * 
  11   * "Support Open Source software. What about a donation today?"
  12   * 
  13   * File Name: fckjscoreextensions.js
  14   *     Extensions to the JavaScript Core.
  15   * 
  16   *     All custom extentions functions are PascalCased to differ from the standard
  17   *     camelCased ones.
  18   * 
  19   * File Authors:
  20   *         Frederico Caldeira Knabben (fredck@fckeditor.net)
  21   */
  22  
  23  String.prototype.Contains = function( textToCheck )
  24  {
  25      return ( this.indexOf( textToCheck ) > -1 ) ;
  26  }
  27  
  28  String.prototype.Equals = function()
  29  {
  30      for ( var i = 0 ; i < arguments.length ; i++ )
  31          if ( this == arguments[i] )
  32              return true ;
  33      
  34      return false ;
  35  }
  36  
  37  Array.prototype.AddItem = function( item )
  38  {
  39      var i = this.length ;
  40      this[ i ] = item ;
  41      return i ;
  42  }
  43  
  44  Array.prototype.indexOf = function( value )
  45  {
  46      for ( var i = 0 ; i < this.length ; i++ )
  47      {
  48          if ( this[i] == value )
  49              return i ;
  50      }
  51      return -1 ;
  52  }
  53  
  54  String.prototype.startsWith = function( value )
  55  {
  56      return ( this.substr( 0, value.length ) == value ) ;
  57  }
  58  
  59  // Extends the String object, creating a "endsWith" method on it.
  60  String.prototype.endsWith = function( value, ignoreCase )
  61  {
  62      var L1 = this.length ;
  63      var L2 = value.length ;
  64      
  65      if ( L2 > L1 )
  66          return false ;
  67  
  68      if ( ignoreCase )
  69      {
  70          var oRegex = new RegExp( value + '$' , 'i' ) ;
  71          return oRegex.test( this ) ;
  72      }
  73      else
  74          return ( L2 == 0 || this.substr( L1 - L2, L2 ) == value ) ;
  75  }
  76  
  77  String.prototype.remove = function( start, length )
  78  {
  79      var s = '' ;
  80      
  81      if ( start > 0 )
  82          s = this.substring( 0, start ) ;
  83      
  84      if ( start + length < this.length )
  85          s += this.substring( start + length , this.length ) ;
  86          
  87      return s ;
  88  }
  89  
  90  String.prototype.trim = function()
  91  {
  92      return this.replace( /(^\s*)|(\s*$)/g, '' ) ;
  93  }
  94  
  95  String.prototype.ltrim = function()
  96  {
  97      return this.replace( /^\s*/g, '' ) ;
  98  }
  99  
 100  String.prototype.rtrim = function()
 101  {
 102      return this.replace( /\s*$/g, '' ) ;
 103  }
 104  
 105  String.prototype.replaceNewLineChars = function( replacement )
 106  {
 107      return this.replace( /\n/g, replacement ) ;
 108  }