Subject: RE: [xsl] news From: "Michael Kay" <mhkay@xxxxxxxxxxxx> Date: Mon, 19 Feb 2001 20:43:50 -0000 |
> >> Can anyone please tell me how to test whether a variable has been > defined? > > > >There is no such test. ... > > What if the variable may, or may not, be defined as a global > variable in a > stylesheet which imports or includes the stylesheet you are writing? It's always known at compile time which variables are in scope, because xsl:import and xsl:include can be resolved at compile time. Therefore, there's no point in having a run-time test on the existence of a variable, any more than there is in C or Java. Mike Kay XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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