Re: [xsl] eliminating duplicates

["Mukul Gandhi" <gandhi.mukul@xxxxxxxxx>]

Taking help from Abel's ideas, I find this solution nice:

<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="2.0">

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

 <xsl:template match="x">
   <x>
    <xsl:for-each select="edge[not(some $i in preceding-sibling::edge
satisfies deep-equal($i, .))]">
      <xsl:copy-of select="." />
    </xsl:for-each>
   </x>
 </xsl:template>

</xsl:stylesheet>

This when applied to the XML:

<x>
 <edge source="IGetter" target="CGetter" dependency="positive"/>
 <edge source="IGetter" target="CGetter" dependency="positive"/>
 <edge source="IGetter" target="CCount" dependency="positive"/>
 <edge source="ICount" target="IGetter" dependency="positive"/>
 <edge source="ICount" target="CGetter" dependency="positive"/>
 <edge source="ICount" target="ICount" dependency="positive"/>
 <edge source="ICount" target="CCount" dependency="positive"/>
 <edge source="ICount" target="CCount" dependency="positive"/>
</x>

Produces output:

<?xml version="1.0" encoding="UTF-8"?>
<x>
  <edge source="IGetter" target="CGetter" dependency="positive"/>
  <edge source="IGetter" target="CCount" dependency="positive"/>
  <edge source="ICount" target="IGetter" dependency="positive"/>
  <edge source="ICount" target="CGetter" dependency="positive"/>
  <edge source="ICount" target="ICount" dependency="positive"/>
  <edge source="ICount" target="CCount" dependency="positive"/>
</x>

On 5/11/07, Garvin Riensche <g.riensche@xxxxxxx> wrote:
> Hello,
>
> I am wondering what's the best way of getting rid of duplicate nodes
> which contain more than one attribute. Suppose I have den following xml:
>
>
> <edge source="IGetter" target="CGetter" dependency="positive"/>
> <edge source="IGetter" target="CGetter" dependency="positive"/>
> <edge source="IGetter" target="CCount" dependency="positive"/>
> <edge source="ICount" target="IGetter" dependency="positive"/>
> <edge source="ICount" target="CGetter" dependency="positive"/>
> <edge source="ICount" target="ICount" dependency="positive"/>
> <edge source="ICount" target="CCount" dependency="positive"/>
> <edge source="ICount" target="CCount" dependency="positive"/>
>
> How do I get rid of one
> <edge source="IGetter" target="CGetter" dependency="positive"/>
> and one
> <edge source="ICount" target="CCount" dependency="positive"/>
> which appear twice?
>
> If there was only one attribute, lets say "source" it would be simple:
>
> <xsl:for-each
> select="//edge[not(./@source=preceding-sibling::edge/@source)]">
>   <xsl:copy-of select="."/>
> </xsl:for-each>
>
> So I thought with more attributes this would work:
> <xsl:for-each select="//edge[not(./@source=preceding-sibling::edge/@source
>                and ./@target=preceding-sibling::edge/@target
>                and ./@dependency=preceding-sibling::edge/@dependency
>                )]">
> </xsl:for-each>
>
> But of course it doesen't because in one iterartion the
> "preceding-siblings" doesn't point to the same element.
>
> So, any help would be appreciated on how to get rid of duplicates.
>
> Regards,
> Garvin


--
Regards,
Mukul Gandhi