Subject: Re: [xsl] test context node existence From: David Carlisle <davidc@xxxxxxxxx> Date: Fri, 27 Jun 2008 23:33:46 +0100 |
> Why can't you say: > > <xsl:if test="exists(foo:node)"> because if there isn't a current node evaluating foo:node is an error. (despite a bizare thread in bugzilla currently suggesting that more or less any error condition can be rewritten to avoid the error) I had this problem in xq2xsl where in translating between xquery and xslt I couldn't be sure if theer was a context node. The solution I adopted there was to never use xslt's implicit initial context and always use a named initial template. In cases where I would have used an initial document instead use a global parameter. The para,eter can have a default definition of () so you can test for that safely. David ________________________________________________________________________ The Numerical Algorithms Group Ltd is a company registered in England and Wales with company number 1249803. The registered office is: Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom. This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. ________________________________________________________________________
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