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Includes : XPath

xpath Function

Ezt a szkriptet nem ajánlott közvetlenül telepíteni. Ez egy könyvtár más szkriptek számára, amik tartalmazzák a // @require https://update.greatest.deepsurf.us/scripts/7145/29376/Includes%20%3A%20XPath.js hivatkozást. 

  1. // ==UserScript==
  2. // @name           Includes : XPath
  3. // @namespace      http://gm.wesley.eti.br/includes
  4. // @description    xpath Function
  5. // @author         w35l3y
  6. // @email          w35l3y@brasnet.org
  7. // @copyright      2009+, w35l3y (http://gm.wesley.eti.br)
  8. // @license        GNU GPL
  9. // @homepage       http://gm.wesley.eti.br
  10. // @version        1.0.0.5
  11. // @language       en
  12. // @include        nowhere
  13. // ==/UserScript==
  14.  
  15. /**************************************************************************
  16.  
  17. 	Author 's NOTE
  18.  
  19.     Original http://lowreal.net/blog/2007/11/17/1
  20.  
  21. ***************************************************************************
  22.  
  23.     This program is free software: you can redistribute it and/or modify
  24.     it under the terms of the GNU General Public License as published by
  25.     the Free Software Foundation, either version 3 of the License, or
  26.     (at your option) any later version.
  27.  
  28.     This program is distributed in the hope that it will be useful,
  29.     but WITHOUT ANY WARRANTY; without even the implied warranty of
  30.     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  31.     GNU General Public License for more details.
  32.  
  33.     You should have received a copy of the GNU General Public License
  34.     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  35.  
  36. **************************************************************************/
  37.  
  38. XPath = Xpath = xpath = function()
  39. {
  40. 	var a = Array.prototype.slice.call(arguments),	// args
  41. 	e = a[0],	// expression
  42. 	c = a[1],	// context
  43. 	t = a[2];	// type
  44. 	
  45. 	if (typeof c == "function")
  46. 	{
  47. 		t = c;
  48. 		c = null;
  49. 	}
  50. 	if (!c)
  51. 	c = document.documentElement||document;
  52. 	var d = c.ownerDocument || c;
  53. 	e = d.createExpression(e, function(p)
  54. 	{
  55.        	var o = d.createNSResolver(c).lookupNamespaceURI(p);
  56.  
  57. 		if (o)
  58. 		return o;
  59. 		else switch (c.contentType)
  60. 		{
  61. 			case "text/xhtml":
  62. 			case "application/xhtml+xml":
  63. 				return "http://www.w3.org/1999/xhtml";
  64. 			default:
  65. 				return "";
  66. 		}
  67. 	});
  68.  
  69. 	switch (t)
  70. 	{
  71. 		case String:
  72. 			return e.evaluate(c, XPathResult.STRING_TYPE, null).stringValue;
  73. 		case Number:
  74. 			return e.evaluate(c, XPathResult.NUMBER_TYPE, null).numberValue;
  75. 		case Boolean:
  76. 			return e.evaluate(c, XPathResult.BOOLEAN_TYPE, null).booleanValue;
  77. 		case Array:
  78. 			var r = e.evaluate(c, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null),
  79. 			o = [];
  80.  
  81. 			for ( var ai = 0 , at = r.snapshotLength ; ai < at ; ++ai )
  82. 				o.push(r.snapshotItem(ai));
  83.  
  84. 			return o;
  85. 		case undefined:
  86. 			var r = e.evaluate(c, XPathResult.ANY_TYPE, null);
  87. 			switch (r.resultType)
  88. 			{
  89. 				case XPathResult.STRING_TYPE:
  90. 					return r.stringValue;
  91. 				case XPathResult.NUMBER_TYPE:
  92. 					return r.numberValue;
  93. 				case XPathResult.BOOLEAN_TYPE:
  94. 					return r.booleanValue;
  95. 				case XPathResult.UNORDERED_NODE_ITERATOR_TYPE:
  96. 					var o = [], i;
  97. 					while (i = r.iterateNext())
  98. 						o.push(i);
  99.  
  100. 					return o;
  101. 			}
  102. 			return null;
  103. 		default:
  104. 			throw(TypeError("xpath: specified type is not valid type."));
  105. 	}
  106. };