[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Avoiding boneheaded mistakes in XSLT?

Subject: Re: Avoiding boneheaded mistakes in XSLT?
From: Graydon <graydon@xxxxxxxxx>
Date: Wed, 29 Dec 2010 23:49:53 -0500
Re:  Avoiding boneheaded mistakes in XSLT?
On Wed, Dec 29, 2010 at 02:39:04PM +0000, Dave Pawson scripsit:
> On Wed, 29 Dec 2010 13:14:15 +0000
> David Carlisle <davidc@xxxxxxxxx> 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.
> Even without schema awareness/context, surely the processor can
> tell when an xpath expression will result in zero match?

But a zero match is completely legitimate, isn't it?

If I'm matching on para/b, and much of my input doesn't have it, and
some of it does, I shouldn't get a warning because I'm looking for
something that isn't in this particular input file.

Or am I completely mis-understanding what you want, there?

-- Graydon

Current Thread


Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
First Name
Last Name
Subscribe in XML format
RSS 2.0
Atom 0.3
Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.