AW: xpath query in an attribute

Dear Balazs

> -----Ursprüngliche Nachricht-----
> Von: Balazs Scheidler [mailto:bazsi@xxxxxxxxxx]
> Gesendet: Mittwoch, 24. Oktober 2001 16:32
> An: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Betreff:  xpath query in an attribute
> 
> 
> Hi,
> 
> I'm new to XSL, and I'm not sure whether I did something 
> wrong or xalan (the
> xslt engine I use is buggy).
> 
> So I want to run an XPath query I extracted from an attribute 
> in the XML
> document.
> 
> Here's what I did:
> 
>     <xsl:variable name="query" select="@select"/>
>     <xsl:value-of select="$query"/>
> 
> The first statement extracts the select attribute from the 
> current node, and
> the second _should_ run the query in $query, and return the 
> accompanying
> node-set. The problem is that it doesn't, it displays the 
> value of the query
> itself.
> 
> My question is: how to execute string variables as XPath 
> queries? Any help
> welcome.

In order to achieve this, you have to use an extension function.
For example in xalan it would be 

evaluate(string)

which constructs an XPath.

> 
> -- 
> Bazsi
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