Re: for-each-group group-by existing and non-existing

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
		version="2.0">
 <xsl:output indent="yes"/>
 <xsl:template match="/container">
  <test>
   <xsl:for-each-group select="*[.//validation/@idref]"
		       group-by=".//validation/concat(@idref,' == ',(@value,'true')[1])">
    <group condition="{current-grouping-key()}">
     <xsl:copy-of select="current-group()"/>
    </group>
   </xsl:for-each-group>
  </test>
 </xsl:template>
</xsl:stylesheet>


David

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