Re: [xsl] comparing a part of the XML tree

[Jethro Borsje <jethro@xxxxxxxxxxxx>]

> > I want to match the nodes *inside* the <selection> node against the 
> > nodes *inside* the original node. 
>
> deep-equal(selection/node(),$original/node())
Alright, that sounds logical. I assume that in this case $original is a 
variable that refers to the <original> element in the input XML file?

I constantly get an error like this when trying to use the deep-equal 
function:
[error]
ERROR:  'Error checking type of the expression 'funcall(deep-equal, 
[ParentLocationPath(ParentLocationPath(step("child", 14), step("child", 
15)), step("child", -1)), 
ParentLocationPath(ParentLocationPath(step("child", 14), step("child", 
15)), step("child", -1))])'.'
FATAL ERROR:  'Could not compile stylesheet'
Error creating transformer
javax.xml.transform.TransformerConfigurationException: Could not compile 
stylesheet
	at 
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:824)
	at 
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl.newTransformer(TransformerFactoryImpl.java:613)
	at Main.getTransformer(Main.java:128)
	at Main.compare(Main.java:70)
	at Main.<init>(Main.java:44)
	at Main.main(Main.java:53)
------------------------------------
Parsing body[<compare><selection><z color="blue" 
flavor="vanilla">testje</z></selection><original><e><x color="red" 
flavor="chocolate">testje 2</x><z color="blue" 
flavor="vanilla">testje</z></e></original></compare>]
Exception in thread "main" java.lang.NullPointerException
	at Main.compare(Main.java:79)
	at Main.<init>(Main.java:44)
	at Main.main(Main.java:53)
[/error]

This is my stylesheet:
[stylesheet]
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="2.0"
	xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>

	<xsl:template match="/">
		<xsl:choose>
			<xsl:when test="deep-equal(compare/selection/node(), 
compare/selection/node())">true</xsl:when>
			<xsl:otherwise>false</xsl:otherwise>
		</xsl:choose>
	</xsl:template>
</xsl:stylesheet>
[/stylesheet]
As you can see I am trying to compare the node inside the selection 
element to itself, just to check if everything is working.

This is the input:
[input]
<compare>
<selection>
	<z color="blue" flavor="vanilla">testje</z>
</selection>
<original>
	<e>
		<x color="red" flavor="chocolate">testje 2</x>
		<z color="blue" flavor="vanilla">testje</z>
	</e>
</original>
</compare>
[/input]

--
Best regards,
Jethro Borsje

http://www.jborsje.nl