RE: [xsl] dynamic XPath?

["Yue Ma" <MaY@xxxxxxxxxxxxxxxx>]

Rod
Thanks for the information.
For the tagPath, it will be the literal string and setup by <xsl:variable>, then later in, for example
<xsl:if test='SomeXPathExpFortagPath'> the string "tagPath" will be evaluated as node set.

Exactly as you pointed out I need a "evaluate()" function here. :)
And I'm a little bit disappointed that it will not be available in XSLT 2.0.

Thanks again.
Yue

>>> rod.humphris@xxxxxxxxxxxxxx 03/12/03 10:23AM >>>
Yue

Looks like the brains on the list have ignored this one so you've got me.

If the question is: 

can you uses xpath to evaluate an reference to a node tree 
	(test="//root/tag1/tag2
against something dynamically generated in or passed to the xslt like 
	$MyVar")
then the answer is no in xlst 1.0 without using a proprietary evaluate()
extension, and it will be no in xslt 2.0 also which I personally think is a
shame. I would like to be able to do Kurts'
<xsl:apply-templates select="$myContext/{$anXPathExpression}"/>
(from thread: A proposal:xsl:result-document asynchronous attribute)

On the other hand if you have a string literal 'actual value' then it's
probably possible to make the comparison you need. What exactly is $tagPath
? a string, a node set? 

Send some more details

cheers

Rod 

-----Original Message-----
From: Yue Ma [mailto:MaY@xxxxxxxxxxxxxxxx] 
Sent: 12 March 2003 14:45
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx 
Subject: [xsl] dynamic XPath?


Hi there,
This could be a dumb question:
Is there a way we can evaluate a dynamic XPath like:
<xsl:if test="$tagPath = 'actual value'">
The tagPath is something like "//root/tag1/tag2"

Seems we can not do it with XSLT 1.0,  right?

Thanks!
Yue



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