Prototype ¬ Detail

author: Evgeniy Potapenko [+], Submitted: 10.10.01 7a

//Evgeniy Potapeno (aka john) john@3wgraphics.com http://www.3wgraphics.com

//This code is written for correct visual reflection of XML while testing (function trace).
//By default XML is shown in one line, and it would be nice to see its structure. 
//By changing the method toString in the XML object, I have changed the reflection. 
//I think it's not needed to explain the need of this solution.

XML.prototype.__proto__.toString = function(tab)
{
	var traced_value;
	
	if(this.nodeType!=3)
	{
		if(this.nodeName!=null)
		{
			traced_value = "<"+this.nodeName;
			for(var v in this.attributes)
			{
				traced_value+=" "+v+"=\""+this.attributes[v]+"\""
			}
			
			if(this.firstChild==null)
			{
				traced_value+=" />"
			}else{
				traced_value+=">\r\t"+tab+this.firstChild.toString(tab+"\t")+"\r"+tab+"</"+this.nodeName+">";
			}
		}else{
			traced_value = this.firstChild.toString("");
		}
		
	}else{
		traced_value=this.nodeValue;
	}
	if(this.nextSibling!=null)
	{
		traced_value+="\r"+tab+this.nextSibling.toString(tab);
	}
	
	return traced_value;
}

usage

//Evgeniy Potapeno (aka john) john@3wgraphics.com http://www.3wgraphics.com

//This code is written for correct visual reflection of XML while testing (function trace).
//By default XML is shown in one line, and it would be nice to see its structure. 
//By changing the method toString in the XML object, I have changed the reflection. 
//I think it's not needed to explain the need of this solution.

//Below - a small example which reflects the changes.

//Let's create a simple XML and trace it in usual way.

text = "<a><b a='1' b='2' c='3'><c a='1' b='2' c='3'/>aaa<d a='1' b='2' c='3'/></b><c a='1' b='2' c='3'/><d a='1' b='2' c='3'/></a>"

anyXML = new XML(text)

trace(anyXML);

//In the output we see:

/*

<a><b a="1" b="2" c="3"><c a="1" b="2" c="3" />aaa<d a="1" b="2" c="3" /></b><c a="1" b="2" c="3" /><d a="1" b="2" c="3" /></a>

*/

//Now let's change the method toString and look for changes.

XML.prototype.__proto__.toString = function(tab)
{
	var traced_value;
	
	if(this.nodeType!=3)
	{
		if(this.nodeName!=null)
		{
			traced_value = "<"+this.nodeName;
			for(var v in this.attributes)
			{
				traced_value+=" "+v+"=\""+this.attributes[v]+"\""
			}
			
			if(this.firstChild==null)
			{
				traced_value+=" />"
			}else{
				traced_value+=">\r\t"+tab+this.firstChild.toString(tab+"\t")+"\r"+tab+"</"+this.nodeName+">";
			}
		}else{
			traced_value = this.firstChild.toString("");
		}
		
	}else{
		traced_value=this.nodeValue;
	}
	if(this.nextSibling!=null)
	{
		traced_value+="\r"+tab+this.nextSibling.toString(tab);
	}
	
	return traced_value;
}

trace(" - - - - - new trace - - - - - - - - -");
trace(anyXML);

//In the output we see:

/*

<a>
	<b a="1" b="2" c="3">
		<c a="1" b="2" c="3" />
		aaa
		<d a="1" b="2" c="3" />
	</b>
	<c a="1" b="2" c="3" />
	<d a="1" b="2" c="3" />
</a>

*/

//My congratulations.