Re: [xsl] Testing by counting or positional predicate

[Francis Norton <francis at redrice dot com>]

David Carlisle wrote:
> 
> >   count($node1|$node2) = 1
> >
> > or:
> >
> >   not(($node1|$node2)[2])
> 
> or generate-id($node1)=generate-id($node1)
> 
logically equivalent and certainly more readable, but on one stylesheet
that I run (to de-dupe the output of an XML Spy conversion from XML
Schema to XDR) the difference between Muenchian grouping with
"count($node1|$node2) = 1" and one with "generate-id(node1) =
generate-id(node2)" is 4.4 seconds v. 14.3 seconds!

Francis.

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