Re: Any way to specify diagnostic message for missing

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@xxxxxxxxxxxx
+44 (0) 118 946 5893




On 15 Oct 2014, at 17:19, David Sewell dsewell@xxxxxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxx   Tel: +1 434 924 9973
> Web: http://rotunda.upress.virginia.edu/