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Re: [xsl] Counting matching elements across two documents

Subject: Re: [xsl] Counting matching elements across two documents
From: David Carlisle <davidc@xxxxxxxxx>
Date: Mon, 17 Jan 2005 14:34:00 GMT

  <xsl:value-of select="count(//player[number = ./number])" />

The Xpaths number and ./number will always select the same thing so your
predicate is the same as true() ie the same as no predicate.

I think you want current() not . to get the number of the current player
in $roster.

//player selects all the players in the current document which is
roster.xml at this point. I think you intend that to be in matches.xml
in which case it wants to start with $matches  not with / where
$matches is defined at the top level by
<xsl:variable name="matches" select="/">


I changed // to an explict path as morally it ought to be faster, but
last time I told someone to do that MK pointed out that saxon has
optimisations for // (saving previous results) not used in general so it
isn't clearly a win. In any case probably using keys would speed things
up (or at least make the optimisation explict) but best to get things
working before worrying about speed.


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