On Wed, 29 Dec 2010 13:14:15 +0000
David Carlisle <davidc(_at_)nag(_dot_)co(_dot_)uk> wrote:
On 29/12/2010 13:09, Piet van Oostrum wrote:
It would be nice if processors would have a debug mode in which
XPath expressions would be checked against a schema or DTD and give
a warning when some 'impossible' expression is encountered.
Impossible meaning something that never can give a non-empty result
on valid documents. Probably just paths that are illegal according
to the schema.
That's exactly what a schema aware xpath2 processor will do.
David
Even without schema awareness/context, surely the processor can
tell when an xpath expression will result in zero match?
--
regards
--
Dave Pawson
XSLT XSL-FO FAQ.
http://www.dpawson.co.uk
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