Re: [xsl] Converting a string to node test

[Jeni Tennison <mail@xxxxxxxxxxxxxxxx>]

Hi,

> Does Microsoft have an extension function like saxon:evaluate() ?

Not a built-in one, no. However, you can define one of your own using
msxsl:script. The following one just interprets XPaths and is
basically the one posted by Andrew Kimball in January:

<xsl:stylesheet version="1.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
                xmlns:dyn="http://exslt.org/dynamic";
                xmlns:msxsl="urn:schemas-microsoft-com:xslt"
                extension-element-prefixes="dyn msxsl">

<msxsl:script implements-prefix="dyn" language="jscript">
   function evaluate(context, expression)
      {
         return context.nextNode().selectNodes(expression);
      }
</msxsl:script>

...

</xsl:stylesheet>

You could call it with:

   dyn:evaluate(., concat('@', $y))

to get the attribute named the same as the string held in $y on the
context node.

[I've used the EXSLT namespace here, but you should make up your own
unless you submit the function to the EXSLT site at
http://www.exslt.org/.]

I hope that helps,

Jeni

---
Jeni Tennison
http://www.jenitennison.com/



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