RE: [xsl] RE: XPath: selecting matching nodes in two node-sets

["Michael Kay" <mhk@xxxxxxxxx>]

I guessed correctly what you meant (which is unusual for me) and the
solution I gave you should work.

Michael Kay

> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx 
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Richard Lewis
> Sent: 20 October 2003 19:35
> To: XSL-List@xxxxxxxxxxxxxxxxxxxxxx
> Subject: [xsl] RE: XPath: selecting matching nodes in two node-sets
> 
> 
> Thanks for the ideas.
> 
> It seems I probably haven't made myself clear!
> 
> The project I'm working on is a record library.
> 
> The top-level method is:
> 
> 'library.xml' -->
> --> 'simple-search.xsl' --> [select 'items' which contain ANY
> 					of the keywords] -->
> --> 'results.xml' -->
> --> 'display-results.xsl' --> [select 'items' which contain ALL of the
> 					keywords] -->
> --> HTML output
> 
> The the 'results.xml' document contains a single 'keywords' node:
> 
> <keywords>
> 	<matches>song</matches>
> 	<matches>medieval</matches>
> </keywords>
> 
> and any number of 'item' nodes:
> 
> <item>
> 	<id>CD106</id>
> 	<title>Medieval English Song</title>
> 	<publisher>Hyperion</publisher>
> 	<date_published>1998</date_published>
> 	<matches>song</matches>
> 	<matches>medieval</matches>
> 	<matches>song</matches>
> 	<matches>song</matches>
> 	<matches>medieval</matches>
> 	<matches>song</matches>
> </item>
> <item>
> 	<id>CD258</id>
> 	<title>Kevin Volans Songline Quartets</title>
> 	<publisher>Naxos</publisher>
> 	<date_published>2003</date_published>
> 	<matches>song</matches>
> 	<matches>song</matches>
> </item>
> (Note: the 'item' nodes in 'library.xml' contain a lot more data)
> 
> So what I need is a XPath expression which says:
> 
> select 'items' where every 'keywords/matches' is present in 
> './matches'.
> 
> so I tried:
> "//item[matches = //keywords/matches]"
> 
> but this returned 'items' where any keywords matched.
> 
> I think thats it.
> 
> Thanks for your help so far and in advance for any further ideas!
> 
> Cheers,
> Richard
> 
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