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XSLT

XSLT

XSLT Contents

Grouping using xsl:key and the key() function -- the Muenchian method
Comparing Strings in XSLT for greater/less
How to do a search and replace in XSLT
How to work with more than one xml document in your XSLT transformation
Sorting (advanced) of dynamically constructed strings
In case you need a ""break"" from an xsl:for-each loop
Format XML/XSL for Documentation
Find all xsl:variables that are in scope?
Binary Search in XSLT
Get the newest 5 articles out of hundreds -- a super efficient sort in XSLT
Dynamically change the encoding of your XSLT stylesheet
Identifying an attribute or a namespace node
Build a XPath expression for a node
Avoiding an XSLT Processor crash due to deep recursive processing
Conditional generation of a string in a single XPath expression
Re: Re: ABS function implemented as a single XPath expression
Re: ABS function implemented as a single XPath expression
ABS function implemented as a single XPath expression
XML to HTML text editor
Dynamically Selecting Which Element To Sort On Using Parameters
 
 

<< XQuery.NET and XML >>

By Dimitre Novatchev
First Posted 12/03/2007
Times viewed 476

Intersection and other set operations on node-sets

Summary This snippet describes how to use the "Kaysian method" to express the intersection of two node-sets in pure XPath.

The only set operation provided in XSLT is the Union -- and it can be specified using the XPath and XSLT union operator |.

Until recently it was believed that in order to implement other types of set operations (e.g. intersection) one could only resort on using extension functions -- and different XSLT processors provided such extensions (e.g. saxon:intersection).

As it turned out in June 2000, it is possible to express the intersection of two node-sets in pure XPath. This technique was discovered by Michael Kay and is known as the Kaysian method.

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<< XQuery.NET and XML >>



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