1  doc.root.elements["entry[last()]"]

   1  
   2    def map_pattr(node, fieldx, valuex)
   3      begin
   4      parameter = node.root.elements["parameter[@field='#{fieldx}']"]
   5      parameter.add_attribute('value', valuex)
   6      parameter
   7      
   8      rescue
   9        puts 'feedpopulated.rb: map_attr() the field ' + fieldx + ' was not found in params.'
  10        raise
  11      end
  12    end

   1  
   2  ./feedpopulated.rb:27:in `map_pattr': undefined method `add_attribute' for nil:NilClass (NoMethodError)
   3       from ./feedpopulated.rb:51:in `create_record'
   4       from ./feedpopulated.rb:49:in `each'
   5       from ./feedpopulated.rb:49:in `create_record'
   6       from ./recordx.rb:91:in `call_create'
   7       from ./s3fileuploader_handler.rb:14:in `call'
   8       from ./s3fileuploader_handler.rb:40:in `invoke'
   9       from ./uploadtwitteraudio.rb:22:in `initialize'
  10       from /usr/lib/ruby/1.8/rexml/element.rb:890:in `each'
  11       from /usr/lib/ruby/1.8/rexml/xpath.rb:53:in `each'
  12       from /usr/lib/ruby/1.8/rexml/element.rb:890:in `each'
  13       from ./uploadtwitteraudio.rb:18:in `initialize'
  14       from ./uploadtwitteraudio.rb:72:in `new'
  15       from ./uploadtwitteraudio.rb:72

   1  
   2  /bookstore/book[1] 	# Selects the first book element that is the child of the bookstore element. 
   3                          # Note: IE5 and later has implemented that [0] should be the first node, 
   4                          # but according to the W3C standard it should have been [1]!!
   5  /bookstore/book[last()] 	# Selects the last book element that is the child of the bookstore element
   6  /bookstore/book[last()-1] 	# Selects the last but one book element that is the child of the bookstore element
   7  /bookstore/book[position()<3] 	# Selects the first two book elements that are children of the bookstore element
   8  //title[@lang] 	# Selects all the title elements that have an attribute named lang

   1  
   2  /bookstore/* 	# Selects all the child nodes of the bookstore element
   3  //* 	# Selects all elements in the document
   4  //title[@*] 	# Selects all title elements which have any attribute

   1  
   2  //book/title | //book/price  	# Selects all the title AND price elements of all book elements

   1  
   2    def call_delete_shape(params)
   3      #get the shape's message id.
   4      doc = Document.new(params)
   5      shape_id = doc.root.elements["param[@var='id']"].text.to_s
   6      initialize_doc
   7  
   8      doc_xml = Document.new(decode2(@doc_file.root.to_s))
   9      id = doc_xml.root.elements["records/message/body/*[@id='#{shape_id}']"].parent.parent.attributes.get_attribute('id')
  10      delete_record(id)
  11      save_file
  12    end

   1  
   2  var canCElC = document.evaluate( '//a[@class="canc"]' ,document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null );
   3  
   4  for (var m = 0; m < canCElC.snapshotLength; m++){
   5  
   6  	var im = canCElC.snapshotItem(m);
   7  
   8  }
   9  
  10  var mems = document.evaluate( '//a[contains(@href, "profile")][ not( @class = "skyblue" )]' ,document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null );
  11  
  12  for (var l = 0; l < mems.snapshotLength; l++){
  13  
  14  	var cThis = mems.snapshotItem(l);
  15  
  16  }	
  17  
  18  var canHazPics = document.evaluate( '//a[@title= "Click for large image"]' ,document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null ).singleNodeValue;
  19  
  20  document.evaluate( 'html/body/div/div[7]/table/tbody/tr[2]/td[ not( contains(@id, "main") )]' ,document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null );
  21  
  22  for(...
  23  
  24  //bravo's xpath function shortcut
  25  // if you don't have $x already
  26  function $x(p, c) {
  27  	var i, r = [], x = document.evaluate(p, c || document, null, XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
  28  	while(i=x.iterateNext()) r.push(i);
  29  	return r;
  30  }
  31  //
  32  // a function to change history days in links
  33  //
  34  // Usage: ChangeDays(n); where n is 1, 3, 7, 14, 30 or 60 - not sure what other values may do to poor Simones Site
  35  //
  36  function ChangeDays(d) {
  37  	$x('//a[contains(@href, "/forum-user.cfm?id=")][not(contains(@href, "days="))]').forEach(function(e) {
  38  		e.setAttribute('href', e.getAttribute('href').replace(/cfm\?id=/, 'cfm?days='+d+'&id='));
  39  	});
  40  }
  41  
  42  
  43  // more bravo stuff
  44  
  45  // getById
  46  function $i(id) {
  47  	return document.getElementById(id);
  48  }
  49  // xpath unordered nodes
  50  function $xu(p, c) {
  51  	var i, r = [], x = document.evaluate(p, c || document, null, XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
  52  	while(i=x.iterateNext()) r.push(i);
  53  	return r;
  54  }
  55  // xpath ordered nodes
  56  function $xo(p, c) {
  57  	var i, r = [], x = document.evaluate(p, c || document, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
  58  	while(i=x.iterateNext()) r.push(i);
  59  	return r;
  60  }
  61  // xpath single first node
  62  function $xf(p, c) {
  63  	return document.evaluate(p, c || document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
  64  }
  65  // xpath single any node
  66  function $xa(p, c) {
  67  	return document.evaluate(p, c || document, null, XPathResult.ANY_UNORDERED_NODE_TYPE, null).singleNodeValue;
  68  }
  69  // getByCLASS(className, orderedFlag);
  70  // untested!!
  71  function $c(cls, o) {
  72  	var fn=$xu;
  73  	if(o) fn=$xo;
  74  	return fn('//*[@class = "'+cls+'"' +
  75  				' or contains(@class, " '+cls+' ")' +
  76  				' or starts-with(@class, "' +cls+' ")' +
  77  				' or substring(@class,string-length(@class)-'+cls.length+')=" '+cls+'"]');
  78  }
  79  // create Element
  80  function $ec(type, attributes){
  81  	var node = document.createElement(type);
  82  	for (var attr in attributes) if (attributes.hasOwnProperty(attr)){
  83  		node.setAttribute(attr, attributes[attr]);
  84  	}
  85  	return node;
  86  }
  87  // delete Element
  88  function $ed(element) {
  89  	element.parentNode.removeChild(element);
  90  }
  91  // insert element after
  92  function $ea(newNode, node) {
  93  	return node.parentNode.insertBefore(newNode, node.nextSibling);
  94  }
  95  // insert element before
  96  function $eb(newNode, node) {
  97  	return node.parentNode.insertBefore(newNode, node);
  98  }
  99  // make element first child of par
 100  function $ef(newNode, par) {
 101  	return par.insertBefore(newNode, par.firstChild);
 102  }
 103  // make element last child of par
 104  function $el(newNode, par) {
 105  	return par.appendChild(newNode);
 106  }
 107  
 108  

   1  
   2  <?xml version="1.0"?>
   3  
   4  <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
   5        
   6      <xsl:template match="dir">
   7      <div id="articles">
   8        <ul>
   9        <xsl:apply-templates select="records/file[@type='rb']"/>
  10        </ul>
  11      </div>
  12      </xsl:template>
  13      
  14      <xsl:template match="records/file[@type='rb']">
  15        <li><xsl:value-of select="."/></li>
  16      </xsl:template>
  17      
  18  </xsl:stylesheet>

   1  
   2  <div id='articles'>
   3    <ul>
   4      <li>projxmlhelper.rb</li>
   5      <li>feedpopulated.rb</li>
   6      <li>squrl_handler.rb</li>
   7      <li>password_handler.rb</li>
   8      <li>category.rb</li>
   9      <li>gwd.rb</li>
  10    </ul>
  11  </div>
  12  

   1  
   2  <?xml version="1.0"?>
   3  
   4  <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
   5        
   6      <xsl:template match="dir">
   7      <div id="articles">
   8        <ul>
   9        <xsl:apply-templates select="records/file"/>
  10        </ul>
  11      </div>
  12      </xsl:template>
  13      
  14      <xsl:template match="records/file">
  15        <xsl:if test="@type=$type">
  16          <li><xsl:value-of select="."/></li>
  17        </xsl:if>
  18      </xsl:template>
  19      
  20  </xsl:stylesheet>

   1  
   2  <codes>
   3    <codex value='bQ' index='Q'/>
   4    <codex value='S' index='R'/>
   5    <codex value='PU' index='S'/>
   6    <codex value='ji' index='T'/>
   7    <codex value='0' index='U'/>
   8    <codex value='33' index='V'/>
   9    <codex value='A' index='W'/>
  10    <codex value='tO' index='X'/>
  11    <codex value='fW' index='Y'/>
  12    <codex value='P' index='Z'/>
  13    <codex value='4h' index='a'/>
  14    <codex value='B' index='b'/>
  15    <codex value='m' index='c'/>
  16    <codex value='qf' index='d'/>
  17    <codex value='uJ' index='e'/>
  18  </codes>

   1  
   2  var nodesSnapshot = doc.evaluate("codes/codex[@index='a']", doc, null, XPathResult.
   3    UNORDERED_NODE_SNAPSHOT_TYPE, null );
   4  node = nodesSnapshot.snapshotItem(0);
   5  msg = "The secret code for '" + node.getAttribute('index') + "' is " + node.getAttribute('value');
   6  alert(msg);

   1  
   2  "The secret code for 'a' is 4h"

   1  
   2  
   3  (function() {
   4  	//GLOBALS
   5  		//globals for classMausWork
   6  		var gSelectedElement;	//currently only one selection
   7  		var gHoverElement;		//whatever element the mouse is over
   8  		var gHovering=false;	//mouse is over something
   9  		var gObjArrMW=[];	//global array of classMausWork objects.  for removing event listeners when done selecting.
  10  		
  11  		//extended	
  12  		var infoDiv;		//currently just container for InfoDivHover, might add more here
  13  		var infoDivHover;	//container for hoverText text node.
  14  		var hoverText;		//show information about current element that the mouse is over
  15  		//const EXPERIMENTAL_NEW_CODE=true;	//debugging. new features.
  16  	
  17  	
  18  	//START
  19  	SetupDOMSelection();	
  20  
  21  
  22  
  23  		
  24  	//(Section 1) Element Selection
  25  	function SetupDOMSelection()
  26  	{
  27  
  28  		{
  29  			//setup event listeners
  30  			//var pathx="//div | //span | //table | //td | //tr | //ul | //ol | //li | //p";
  31  			var pathx="//div | //span | //table | //th | //td | //tr | //ul | //ol | //li | //p | //iframe";
  32  			var selection=$XPathSelect(pathx);
  33  			for(var element, i=0;element=selection(i);i++)
  34  			{			
  35  				if(element.tagName.match(/^(div|span|table|td|tr|ul|ol|li|p)$/i))	//redundant check.
  36  				{
  37  					var m = new classMausWork(element);
  38  					gObjArrMW.push(m);
  39  					attachMouseEventListeners(m);
  40  				}
  41  			}
  42  			document.body.addEventListener('mousedown',MiscEvent,false);
  43  			document.body.addEventListener('mouseover',MiscEvent,false);
  44  			document.body.addEventListener('mouseout',MiscEvent,false);
  45  			document.addEventListener('keypress',MiscEvent,false);
  46  		}
  47  		{
  48  			//setup informational div to show which element the mouse is over.
  49  			infoDiv=document.createElement('div');
  50  			var s=infoDiv.style;
  51  			s.position='fixed';
  52  			s.top='0';
  53  			s.right='0';
  54  			
  55  			s.display='block';
  56  			s.width='auto';
  57  			s.padding='0px';
  58  
  59  			document.body.appendChild(infoDiv);
  60  			infoDivHover=document.createElement('div');
  61  
  62  			s=infoDivHover.style;
  63  			s.fontWeight='bold';			
  64  			s.padding='3px';
  65  			s.Opacity='0.8';
  66  			s.borderWidth='thin';
  67  			s.borderStyle='solid';
  68  			s.borderColor='white';
  69  			s.backgroundColor='black';
  70  			s.color='white';
  71  			
  72  			infoDiv.appendChild(infoDivHover);			
  73  			hoverText=document.createTextNode('selecting');
  74  			infoDivHover.appendChild(hoverText);
  75  		}
  76  	}
  77  	
  78  	function CleanupDOMSelection()
  79  	{
  80  		for(var m; m=gObjArrMW.pop(); )
  81  		{
  82  			detachMouseEventListeners(m);
  83  		}
  84  		ElementRemove(infoDiv);
  85  		document.body.removeEventListener('mousedown',MiscEvent,false);
  86  		document.body.removeEventListener('mouseover',MiscEvent,false);
  87  		document.body.removeEventListener('mouseout',MiscEvent,false);		
  88  		document.removeEventListener('keypress',MiscEvent,false);
  89  	}	
  90  
  91  	function attachMouseEventListeners(c)
  92  	{
  93  		//c is object of class classMausWork
  94  		c.element.addEventListener("mouseover",c.mouse_over,false);				
  95  		c.element.addEventListener("mouseout",c.mouse_out,false);	
  96  		c.element.addEventListener("mousedown",c.mouse_click,false);		
  97  	}
  98  
  99  	function detachMouseEventListeners(c)
 100  	{
 101  		//c is object of class classMausWork
 102  		c.resetElementStyle();
 103  		c.element.removeEventListener("mouseover",c.mouse_over,false);				
 104  		c.element.removeEventListener("mouseout",c.mouse_out,false);	
 105  		c.element.removeEventListener("mousedown",c.mouse_click,false);		
 106  	}
 107  
 108  	//mouse event  handling class for element, el.
 109  	function classMausWork(element)
 110  	{	
 111  		//store information about the element this object is assigned to handle. element,  original style, etc.	
 112  		this.element=element;
 113  		
 114  		var elementStyle=element.getAttribute('style');
 115  		var target;
 116  		
 117  		this.mouse_over=function(ev)
 118  		{	
 119  			if(gHovering)return;
 120  			var e=element;			
 121  			var s=e.style;
 122  			s.backgroundColor='yellow';
 123  			s.borderWidth='thin';
 124  			s.borderColor='lime';
 125  			s.borderStyle='solid';					
 126  			InfoMSG(ElementInfo(e),'yellow','blue','yellow');
 127  			gHoverElement=e;
 128  			gHovering=true;
 129  			target=ev.target;
 130  			ev.stopPropagation();		
 131  		};
 132  		
 133  		this.mouse_out=function(ev)
 134  		{
 135  			if(!gHovering)return;
 136  			if(gHoverElement!=element ||ev.target!=target)return;
 137  			var e=element;
 138  			e.setAttribute('style',elementStyle);
 139  			InfoMSG('-','white','black','white');	
 140  			gHoverElement=null;
 141  			gHovering=false;
 142  			target=null;
 143  			//ev.stopPropagation();
 144  		};
 145  		
 146  		this.mouse_click=function(ev)
 147  		{
 148  			if(!gHovering)return;
 149  			if(gHoverElement!=element ||ev.target!=target)return;
 150  			var e=element;
 151  			e.setAttribute('style',elementStyle);
 152  			ev.stopPropagation();			
 153  			CleanupDOMSelection();			
 154  			gHoverElement=null;
 155  			gHovering=false;
 156  			target=null;
 157  			
 158  			if(ev.button==0)
 159  			{
 160  				gSelectedElement=e;
 161  				ElementSelected(e);	//finished selecting, cleanup then move to next part (section 2), element isolation.
 162  			}
 163  		};
 164  		
 165  		this.resetElementStyle=function()
 166  		{
 167  			element.setAttribute('style',elementStyle);
 168  		};		
 169  	}
 170  
 171  	function MiscEvent(ev)		//keypress, and mouseover/mouseout/mousedown event on body.  cancel selecting.
 172  	{
 173  		if(ev.type=='mouseout' && !gHovering)
 174  		{
 175  			InfoMSG('-','white','black','white');
 176  		}
 177  		else if(ev.type=='mouseover' && !gHovering)
 178  		{
 179  			InfoMSG('cancel','yellow','red','yellow');
 180  		}
 181  		else //keypress on document or mousedown on body, cancel ops.
 182  		{
 183  			CleanupDOMSelection();
 184  		}
 185  	}
 186  	
 187  	function InfoMSG(text,color,bgcolor,border)
 188  	{
 189  		
 190  		var s=infoDivHover.style;
 191  		if(color)s.color=color;
 192  		if(bgcolor)s.backgroundColor=bgcolor;
 193  		if(border)s.borderColor=border;
 194  		if(text)hoverText.data=text;
 195  	}
 196  	
 197  
 198  
 199  	
 200  	
 201  	//(Section 2) Element Isolation
 202  	function ElementSelected(element)	//finished selecting element.  setup string to prompt user.
 203  	{
 204  		PromptUserXpath(ElementInfo(element));
 205  	}
 206  	
 207  	
 208  	function PromptUserXpath(defaultpath)		//prompt user, isolate element.
 209  	{
 210  		var userpath = prompt("XPath of elements to isolate : ", defaultpath);
 211  		if(userpath && userpath.length>0)
 212  		{
 213  			var addPredicate = "[count(./ancestor-or-self::head)=0][count(./ancestor-or-self::title)=0]";	//exclude head & title elements from selection so they aren't removed
 214  			var addPath = "//script | //form | //object | //embed";	//include these elements in selection for removal
 215  			var pathx=TransformXPath_NoAncestorDescendentSelf(userpath, addPredicate, addPath);		//the xpath selection of all elements to be removed/deleted.
 216  			
 217  			try
 218  			{
 219  				var element;
 220  				var elements=$XPathSelect(pathx);	
 221  				for(var i=0;element=elements(i);i++)
 222  				{			
 223  
 224  					if(!element.nodeName.match(/^(head|title)$/i))	//redundant check.
 225  					{
 226  						ElementRemove(element);
 227  					}
 228  				}
 229  			}
 230  			
 231  			catch(err)
 232  			{
 233  				alert("wtf: "+err);
 234  			}
 235  			
 236  		}
 237  	}
 238  	
 239  		
 240  	
 241  	//support
 242  	function $XPathSelect(p, context) 
 243  	{
 244  	  if (!context) context = document;
 245  	  var i, arr = [], xpr = document.evaluate(p, context, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
 246  	  return function(x) { return xpr.snapshotItem(x); };	//closure.  wooot!  returns function-type array of elements (usually elements, or something else depending on the xpath expression).
 247  	}
 248  	
 249  	function ElementRemove(e)
 250  	{
 251  		if(e)e.parentNode.removeChild(e);
 252  	}
 253  	
 254  	function ElementInfo(element)
 255  	{
 256  		var txt='';
 257  		if(element)
 258  		{
 259  			txt=element.tagName.toLowerCase();		//txt=element.tagName;
 260  			txt=attrib(txt,element,'id');
 261  			txt=attrib(txt,element,'class');	
 262  			txt='//'+txt;
 263  		}
 264  		return txt;
 265  		
 266  		function attrib(t,e,a)
 267  		{			
 268  			if(e.hasAttribute(a))
 269  			{
 270  				t+="[@"+a+"='"+e.getAttribute(a)+"']";
 271  			}
 272  			return t;
 273  		}
 274  		
 275  	}
 276  
 277  
 278  	
 279  	//function to 'invert' the XPath by selecting all elements that are not ancestor and not descendent and not self.
 280  	function TransformXPath_NoAncestorDescendentSelf(u, includePredicates, includePaths)
 281  	{	
 282  		
 283  		//sample input (u):					//div[@class='sortbox']
 284  		//sample output						//*[  not(./descendant-or-self::*=//div[@class='sortbox'])][  not(./ancestor-or-self::*=//div[@class='sortbox'])]
 285  		//sample output with additional conditions:		//*[  not(./descendant-or-self::*=//div[@class='sortbox'])][  not(./ancestor-or-self::*=//div[@class='sortbox'])][count(./ancestor-or-self::head)=0][count(./ancestor-or-self::title)=0]
 286  		
 287  			//obsolete method.  much faster but can only be used for limited types of (simple) xpath expressions -- unlike the current version, which should be able to convert any xpath.
 288  			//input:			table[@id='topbar']
 289  			//output:			//*[not(./descendant-or-self::table[@id='topbar']) and not(./ancestor-or-self::table[@id='topbar'])]
 290  			//output (alternative):	//*[count(./descendant-or-self::table[@id='topbar'])=0 and count(./ancestor-or-self::table[@id='topbar'])=0]
 291  		
 292  		
 293  		var o1=	'./descendant-or-self::*='+gr(u);
 294  		o1=	'not' + gr(o1);
 295  		o1=	nt(o1);	
 296  		var o2= './ancestor-or-self::*='+gr(u);
 297  		o2=	'not' + gr(o2);
 298  		o2=	nt(o2);
 299  
 300  		var o=	'//*'+o1+o2;
 301  		if(includePredicates && includePredicates.length>0)	o += includePredicates;
 302  		if(includePaths && includePaths.length>0) o += ' | ' + includePaths;
 303  		return o;
 304  		
 305  		
 306  		function nt(term){return wrap(term,'[]');}	//node test; predicate - enclose with bracket.
 307  		function gr(term){return wrap(term,'()');}	//group - parenthesize.
 308  		function wrap(term, enclosure){return enclosure.charAt(0)+term+enclosure.charAt(1);}
 309  	}	
 310  	
 311  
 312  
 313  	
 314  })();
 315  

   1  
   2        function getXPath(node, path) {
   3          path = path || [];
   4          if(node.parentNode) {
   5            path = getXPath(node.parentNode, path);
   6          }
   7  
   8          if(node.previousSibling) {
   9            var count = 1;
  10            var sibling = node.previousSibling
  11            do {
  12              if(sibling.nodeType == 1 && sibling.nodeName == node.nodeName) {count++;}
  13              sibling = sibling.previousSibling;
  14            } while(sibling);
  15            if(count == 1) {count = null;}
  16          } else if(node.nextSibling) {
  17            var sibling = node.nextSibling;
  18            do {
  19              if(sibling.nodeType == 1 && sibling.nodeName == node.nodeName) {
  20                var count = 1;
  21                sibling = null;
  22              } else {
  23                var count = null;
  24                sibling = sibling.previousSibling;
  25              }
  26            } while(sibling);
  27          }
  28  
  29          if(node.nodeType == 1) {
  30            path.push(node.nodeName.toLowerCase() + (node.id ? "[@id='"+node.id+"']" : count > 0 ? "["+count+"]" : ''));
  31          }
  32          return path;
  33        };
  34  

   1  
   2      try
   3      {
   4        XPath xpath = XPathFactory.newInstance().newXPath();
   5        Element e = (Element) xpath.evaluate("/Archive/Section/Description", parentNode,
   6            XPathConstants.NODE);
   7        printXmlNode(e);
   8      }
   9      catch (XPathExpressionException e)
  10      {
  11        e.printStackTrace();
  12      }