XSLT, using a string value as a node-set() param

Hi everyone,
Apologies if this is off-topic..

I am writing an XSLT where I want to pass an XPath statement in as a parameter.  Like so:

<xsl:param name="contentXPath" select="'//content[@id=535]'" />

Note the single quotes around the XPath - the param is a string literal, not a node set.

I then want to go:

<xsl:apply-templates select="msxsl:node-set($contentXPath)">
</xsl:apply-templates>

But ASP.Net doesn't like this at all, in fact my web server crashes as soon as it attempts the transform. XMLSpy doesn't like it either. It works fine when I declare the param like this:

<xsl:param name="contentXPath" select="//content[@id=535]" />

Can anyone tell me if there's a way to get it to do what I want, or a workaround?

As background, I'm doing this because I need to calculate the XPath on the fly based on the current URL. It's basically a kind of URL rewriter - I'll convert /mypages/mypage.htm to /pagegroup[@title='mypages']/page[@title='mypage']

Hi Andrew,

You can't use the node-set function in that way surely?  The node-set needs to operate on well a node-set, not a string literal.  Maybe transfer this query over to http://www.xmlpitstop.com if you want to discuss further.

Cheers

Dave Mc

Dave I suspect you're right. I've thought of a reasonably elegant workaround which I'll implement for now, and I'll post the question in that forum too. Thanks for the link!