The
few programming classes I've taken (using procedural
languages) have taught that a lot of global variables are a
Bad Thing, but maybe that axiom doesn't necessarily apply to XSLT.
Global variables are a bad thing in procedural programming because they
can be updated from anywhere, which leads to a lot of errors.
They do no harm in XSLT because they are only evaluated once.
Michael Kay
Software AG
home: Michael(_dot_)H(_dot_)Kay(_at_)ntlworld(_dot_)com
work: Michael(_dot_)Kay(_at_)softwareag(_dot_)com
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