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Re: document() path created from xml
- To: xsl-list at lists dot mulberrytech dot com
- Subject: Re: [xsl] document() path created from xml
- From: Francis Norton <francis at redrice dot com>
- Date: Tue, 04 Sep 2001 13:08:15 +0100
- References: <B7BA76C2.A25A%jeroen@laika.nl>
- Reply-To: xsl-list at lists dot mulberrytech dot com
Hi Jeroen,
Jeroen Janssen wrote:
>
> A related question; is there any way of seeing what the result of an
> expression is? I know I'm doing something wrong but "Reference to variable
> or parameter 'path' must evaluate to a node list" is a bit vague, I would
> like to see what's actually happening...
>
I find xsl:message and xsl:comment really useful for tracking
intermediate results. xsl:comment is more portable because msxsl (unlike
saxon) will ignore any xsl:message that does not have terminate="true".
They're both a bit verbose because you need to have an xsl:value-of (or
two) to get your expression's result into the message or variable, but
it's not complicated.
These two debugging techniques are surprisingly seldom mentioned, but I
find them really useful.
Francis.
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