Re: sorting the unique elements

Subject: Re: sorting the unique elements
From: Gary L Peskin <garyp@xxxxxxxxxxxx>
Date: Thu, 07 Sep 2000 09:47:10 -0700
David Valera wrote:
> My problem is the following. I have an XML file like this:
> 
> <A>
>         <D>
>                 <C/>
>                 <A><B/></A>
>         </D>
>         <B/>
> </A>
> 
> I would like to generate a sortered output of the unique elements in the XML
> file like this:
> 
> ABCD

David --

Does this do what you want?

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>

<xsl:key name="first-id" match="*"
        use="generate-id((preceding::* | ancestor::*)[name() =
name(current())])"/>

<xsl:template match="/">
  <xsl:apply-templates select="key('first-id', '')">
  <xsl:sort select="name()"/>
  </xsl:apply-templates>
</xsl:template>

<xsl:template match="*">
  <xsl:value-of select="name()"/>
</xsl:template>

</xsl:stylesheet>

Gary


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