Re: Eliminating Duplicate Elements

if you have a structure like the one you have given..
( i have added <students> as  root element..)

<?xml version="1.0"?>
<students>
<fred>
<wilma>
<pebbles> one </pebbles>
</wilma>
</fred>

<fred>
<wilma>
<pebbles> two </pebbles>
</wilma>
</fred>

<fred>
<wilma>
<pebbles> one </pebbles>
</wilma>
</fred>
</students>

and if you want to eliminate the duplicates and print
one,two ( the texts in pebbles)
instead of one,two, one

then the simplest way of doing this is..
<xsl:template match="/">
<xsl:for-each select="//pebbles[not(. = preceding::pebbles/text())]">
<xsl:value-of select="."/>
<xsl:if test="not(position()=last())">
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:for-each>
this would give one , two

From: Antony.Tomasovic@xxxxxxxx
Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
To: XSL-List@xxxxxxxxxxxxxxxxxxxxxx
Subject:  Eliminating Duplicate Elements
Date: Wed, 14 Aug 2002 14:33:13 +1000

Hi,

I've read the archives about elimating duplicate elements
but still can't seem to get my head around the concept.

Can anyone, in as simple terms as possible, explain how
I can use XSL to turn the following XML:

<fred>
<wilma>
<pebbles> one </pebbles>
</wilma>
</fred>

<fred>
<wilma>
<pebbles> two </pebbles>
</wilma>
</fred>

<fred>
<wilma>
<pebbles> one </pebbles>
</wilma>
</fred>

to output as:

<fred>
<wilma>
<pebbles> one </pebbles>
</wilma>
</fred>

<fred>
<wilma>
<pebbles> two </pebbles>
</wilma>
</fred>

using <xsl:for-each> loops.

Thanks,
Antony

Antony Tomasovic


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