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Re: Testing if variable exists
- From: David Carlisle <davidc at nag dot co dot uk>
- To: xsl-list at lists dot mulberrytech dot com
- Date: Wed, 22 May 2002 17:34:45 +0100
- Subject: Re: [xsl] Testing if variable exists
- References: <F224kpB9pbKWZfEAkqB0000251a@hotmail.com>
- Reply-to: xsl-list at lists dot mulberrytech dot com
> How anyone know if there is a way to test to see if a variable of a
> particular name exists
You should never need to do this: You can tell whether or not a variable
is in scope by looking at the stylesheet, it never depends on runtime
behaviour.
So either the variable is in scope, in which case it has a value, or it
isn't in scope in which case you can't test for it.
David
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