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RE: /WD-xpath-datamodel-20030502/

From: <David.Pawson@rnib.org.uk>
Date: Tue, 13 May 2003 10:15:45 +0100
Message-ID: <9B66BBD37D5DD411B8CE00508B69700F049E1782@pborolocal.rnib.org.uk>
To: public-qt-comments@w3.org

Michael Kay said:

> Dave, I think you are misreading Michael Rys' comments about 
> XSLT. I think
> that all he is saying is that he doesn't know what's in the XSLT
> specification because he is not on the XSL Working Group and 
> hasn't studied
> it in detail.

OK. 


> 
> The XSLT specification does have a few additional things to 
> say about the
> data model (in section 3), though this section has become a 
> lot smaller in
> recent drafts.
> 
> It's not clear to me what point you are trying to make.

The title of the document reads
XQuery 1.0 and XPath 2.0 Data Model

Your comments imply that the data model for xslt is different?
Or at least enhanced?

Yet another variant in this collection of 'common' shared' specs?

regards DaveP




> > -----Original Message-----
> > From: David.Pawson@rnib.org.uk [mailto:David.Pawson@rnib.org.uk] 
> > Sent: 12 May 2003 08:43
> > To: mrys@microsoft.com; public-qt-comments@w3.org
> > Subject: RE: /WD-xpath-datamodel-20030502/
> > 
> > 
> > 
> > From which I may deduce that the data model is then 
> > incomplete for XSLT+XPATH?
> > 
> > I make the assumption that XSLT is incomplete without xpath.
> > 
> > That may be fine for the xquery people, I find it puzzling
> > from an XSLT perspective?
> > 
> > 
> > Perhaps the document title is wrong?
> > 
> > regards DaveP
> > 
> > 
> > 
> > 
> > > -----Original Message-----
> > > From: Michael Rys [mailto:mrys@microsoft.com]
> > > Sent: 09 May 2003 20:40
> > > To: David.Pawson@rnib.org.uk; public-qt-comments@w3.org
> > > Subject: RE: /WD-xpath-datamodel-20030502/
> > > 
> > > 
> > > The wording says it is outside of the scope of the data 
> > model document 
> > > and I think that's where it belongs. However, the XSLT 
> spec may say 
> > > that you have to represent certain information in the data 
> > model and 
> > > thus make this part of the scope of the XSLT spec...
> > > 
> > > Best regards
> > > Michael
> > > 
> > > > -----Original Message-----
> > > > From: David.Pawson@rnib.org.uk [mailto:David.Pawson@rnib.org.uk]
> > > > Sent: Friday, May 09, 2003 7:22 AM
> > > > To: public-qt-comments@w3.org
> > > > Subject: /WD-xpath-datamodel-20030502/
> > > > 
> > > > 
> > > > <quote>
> > > > 3.7 Comments, Processing Instructions, and Whitespace 
> > Although the 
> > > > data model is able to represent comments, processing 
> > instructions, 
> > > > and insignificant whitespace, preservation of this information
> > > > may be unnecessary and onerous for some applications.
> > > > 
> > > > An instance of the data model can be constructed from an 
> > Infoset, a
> > > PSVI,
> > > > or
> > > > from some other data source entirely. Different 
> > applications may or
> > > may
> > > > not
> > > > choose to construct nodes in the data model to represent 
> > comments, 
> > > > processing instructions, and insignificant white space. These
> > > decisions
> > > > are
> > > > considered outside the scope of the data model.
> > > Consequently the data
> > > > model
> > > > makes no attempt to control or identify the sort of
> > > processing in this
> > > > regard that an application uses to construct a data model 
> > instance. 
> > > > </quote>
> > > > 
> > > > 
> > > > I am concerned about the 'may' in the first para, wrt XSLT
> > > applications.
> > > > 
> > > > I'd hope they would be required to be processed in an xslt
> > > application;
> > > > If such an application is using this data model, then how
> > > can that be
> > > > enforced?
> > > > 
> > > > E.g. I'd hope that the determination of the 
> significance of white
> > > space is
> > > > the choice of the end user.
> > > > 
> > > > Hence I disagree with this being outside the scope of this
> > > data model.
> > > > 
> > > > regards DaveP
> > > > AC RNIB.
> > > > 
> > > > 
> > > > **** snip here ****
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > Regards DaveP.
> > > > 
> > > > **** snip here *****
> > > > 
> > > > -
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cannot accept any responsibility for any viruses which are 
transmitted. We therefore recommend you scan all attachments.

Please note that the statements and views expressed in this email 
and any attachments are those of the author and do not necessarily 
represent those of RNIB.

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Received on Tuesday, 13 May 2003 05:16:12 GMT

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