RE: [xsl] Getting unique items from elements

Subject: RE: [xsl] Getting unique items from elements
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Tue, 14 Nov 2006 17:20:39 -0000
> The output as you would expect includes the category of 
> "Children" twice. Is there a way in XSL to extract only the 
> unique elements from <category>?

This problem is known as "grouping": you'll find it in the index of any XSLT
book under that name, or at http://www.jenitennison.com/xslt/grouping. It's
easy in XSLT 2.0 using <xsl:for-each-group>, but a little tricky in XSLT
1.0.

Michael Kay
http://www.saxonica.com/

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