Re: question with using Muenchian/xsl:key (Re: sort/group/co

> Thanks for the suggestion, but this did not seems to work.

Oh why not?

As you replied in this manner I thought I'd try it, it seems to work for
me unless I misunderstood the problem.

David

<x>
      <itemlist>
	<item itemid="Z101" units="1"/>
	<item itemid="Z102" units="2"/>
	<item itemid="Z101" units="4"/>
      </itemlist>


      <itemlist>
	<item itemid="y101" units="1"/>
	<item itemid="y102" units="3"/>
	<item itemid="y102" units="2"/>
	<item itemid="y101" units="5"/>
	<item itemid="y101" units="4"/>
      </itemlist>



</x>
 

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                version="1.0"
                >

<xsl:output method="xml" indent="yes"/>



<xsl:key name="items-by-itemid" match="item" use="concat(generate-id(..),@itemid)"
/>
<xsl:template match="itemlist">
 <xsl:variable name="x" select="generate-id(.)"/>
  <xsl:for-each select="item[count(. | key('items-by-itemid', concat($x,@itemid))[1]) =
1]">
    <xsl:sort select="@itemid" />
      <tr>
        <td><xsl:value-of select="@itemid"/></td>
	<td><xsl:value-of
select="sum(key('items-by-itemid',concat($x,@itemid))/@units)"/></td>
      </tr>
  </xsl:for-each>
</xsl:template>

</xsl:stylesheet>



bash-2.01$ saxon key.xml key.xsl

<?xml version="1.0" encoding="utf-8" ?>
      
<tr>
   <td>Z101</td>
   <td>5</td>
</tr>
<tr>
   <td>Z102</td>
   <td>2</td>
</tr>


      
<tr>
   <td>y101</td>
   <td>10</td>
</tr>
<tr>
   <td>y102</td>
   <td>5</td>
</tr>




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