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Re: Removing Dupicates

From: "Joris Gillis" <roac@-------.-->
To: NULL
Date: 3/13/2005 9:37:00 AM

Tempore 09:56:13, die Sunday 13 March 2005 AD, hinc in foro {microsoft.public.xsl} scripsit volume <a@a...>:

> How do I remove all dupicates nodes from an xml document?
>
> For example, remove all dupicates "item" nodes from the following:
>
> <items>
> <item>aaa</item>
> <item>zzz</item>
> <item>aaa</item>
> </items>

Hi,

one of the most common ways to do this (in XSLT1.0) is with the combination of 'generate-id()' and key()': the mueanchian grouping technique.

here's a sample:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes" />

<xsl:key name="item" match="item" use="."/>

<xsl:template match="items">
	<xsl:copy-of select="item[generate-id(key('item',.)[1])=generate-id()]"/>
</xsl:template>

</xsl:stylesheet>


regards,
-- 
Joris Gillis (http://www.ticalc.org/cgi-bin/acct-view.cgi?userid=38041)
Ceterum censeo XML omnibus esse utendum

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