> I've tried an example (using Xalan; see below) and it works.

that is a xalan bug then.


> Am I doing something wrong?

yes you can not use variable or param references in match patterns.

David

________________________________________________________________________
This e-mail has been scanned for all viruses by Star. The
service is powered by MessageLabs. For more information on a proactive
anti-virus service working around the clock, around the globe, visit:
http://www.star.net.uk
________________________________________________________________________