Re: [xsl] Sorting on call-template value?

[Mike Brown <mike@xxxxxxxx>]

Randy Oxentenko wrote:
> I am a novice with XSLT.  My question is with respect to the child of
> <xsl:for-each> that is <xsl:sort>.  Is it possible to use a result returned
> from <xsl:call-template> as the sort key?
> 
> Perhaps a better way to phrase the question might be this: You can sort on
> the value of functions intrinsic to XSL, such as position() or
> substring-before() etc.  Is it possible to write your own "functions" as xsl
> templates, and sort on the value returned from those?

Use a variable?

<xsl:variable name="sortkey">
  <xsl:call-template name="foo"/>
</xsl:variable>
<xsl:for-each select="/some/nodes">
  <xsl:sort select="string($sortkey)"/>
  ...


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