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Re: Grouping-by appropriate values from external docu

Subject: Re: Grouping-by appropriate values from external document.
From: David Carlisle <davidc@xxxxxxxxx>
Date: Fri, 21 Oct 2005 13:59:24 +0100
Re:  Grouping-by appropriate values from external  docu
Note that whenever you have a construct like

[@id=current()/@pr_id]

"use a key" should pop automatically in to your head.
Something like

 <xsl:key name="goods" match="goods" use="@name"/>

<xsl:for-each-group select="product" group-by="@pr_id">

 <xsl:sort select="key('goods',@pr_id,$goods)/@name"/>


Conversely you don't need this key:
      <xsl:copy-of select="key('prd', current-grouping-key())"/>
as that is just
      <xsl:copy-of select="current-group()"/>

David

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