Subject: Re: [xsl] A problem using the xsl:key facility From: Lars Huttar <lars_huttar@xxxxxxx> Date: Tue, 20 Jul 2010 16:31:36 -0500 |
On 7/20/2010 3:30 PM, Michael Kay wrote: > On 20/07/2010 21:17, Nathan Potter wrote: > > The key() function, when called with two arguments, always searches > within the current document (more accurately, the document containing > the context node). Your xsl:for-each changes the current document, so > you are searching the wrong thing. In XSLT 2.0 you can use the third > argument of the key() function to indicate which document you want to > search. Maybe this should go on the list of common XSLT mistakes. http://saxonica.blogharbor.com/blog/_archives/2010/6/11/4550606.html Even if it's not as common as others, this mistake is one that is hard to debug because there's a context dependency in the key() that one often doesn't think about (affected by a context change in the for-each that one often doesn't think about). Usually they "just work" fine, but when they don't, it's mysterious, even baffling. Lars
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