One could extend this requirement to all sorts of other situations, e.g. if
parameters are supplied but invalid, the source document is invalid, etc.
You're opening a whole new area. It would be wrong to tackle this one example
on its own.
Michael Kay
Saxonica
mike(_at_)saxonica(_dot_)com
+44 (0) 118 946 5893
On 15 Oct 2014, at 17:19, David Sewell dsewell(_at_)virginia(_dot_)edu
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:
Given a stylesheet parameter <xsl:param name="somevar" required="yes"/>,
failing to supply a parameter value at run-time results in a boilerplate
error message such as "XTDE0050: No value supplied for required parameter
somevar".
It would be helpful to be able to supply a custom error message such as
"required: somevar=[true|false|unknown]" to save the user the time it takes
to look through the code to figure out what parameter is expected. There's no
way to do this in the XSLT spec through 3.0, correct? and no common
extensions for doing it?
If not, would that be a useful feature for others, or are there reasons not
to implement something like that as an extension or enhancement?
David
--
David Sewell, Editorial and Technical Manager
ROTUNDA, The University of Virginia Press
PO Box 400314, Charlottesville, VA 22904-4314 USA
Email: dsewell(_at_)virginia(_dot_)edu Tel: +1 434 924 9973
Web: http://rotunda.upress.virginia.edu/
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