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RE: Let's get some principles nailed down

From: Dare Obasanjo <dareo@microsoft.com>
Date: Fri, 22 Nov 2002 13:37:21 -0800
Message-ID: <B885BEDCB3664E4AB1C72F1D85CB29F804104EE5@RED-MSG-10.redmond.corp.microsoft.com>
To: <noah_mendelsohn@us.ibm.com>
Cc: "Tim Bray" <tbray@textuality.com>, "WWW-Tag" <www-tag@w3.org>

If you're reconciling the XPath data model and the infoset then I can't
see how you can't include having to reconcile the DOM as well. In the
DOM one can have adjacent text nodes while they can't exist in the
XQuery data model and the infoset is particularly silent on this with
its impractical description of character information items. Similar
issues exist with namespace declarations. CData sections which are
insignificant in both the infoset and the XPath data model are not in
the DOM. 

Then there is all the type & sequences hoopla once you throw in the
XPath 2.0 data model. 

-- 
PITHY WORDS OF WISDOM 
Nature is a mother.                  

This posting is provided "AS IS" with no warranties, and confers no
rights. 

>  
>  
> -----Original Message-----
> From: noah_mendelsohn@us.ibm.com [mailto:noah_mendelsohn@us.ibm.com] 
> Sent: Friday, November 22, 2002 1:27 PM
> To: Dare Obasanjo
> Cc: Tim Bray; WWW-Tag
> 
> Well, a DOM reflects an Infoset.  Just as I would discourage 
> applications from deriving semantics from the non-Infoset 
> visible aspects of a serialization (e.g.  choice of single or 
> double quotes on attribute values), I would discourage 
> applications from attributing semantics to whatever the DOM 
> may provide for content over and above infoset.  Using DOM is 
> fine, of course, and the fact that DOM allows some utiltity 
> functions like limited query on the Infoset is cool.  Does 
> this make sense?
> 
> ------------------------------------------------------------------
> Noah Mendelsohn                              Voice: 1-617-693-4036
> IBM Corporation                                Fax: 1-617-693-8676
> One Rogers Street
> Cambridge, MA 02142
> ------------------------------------------------------------------
> 
> 
> 
> 
> 
> 
> 
> "Dare Obasanjo" <dareo@microsoft.com>
> 11/22/2002 01:04 PM
> 
>  
>         To:     <noah_mendelsohn@us.ibm.com>, "Tim Bray" 
> <tbray@textuality.com>
>         cc:     "WWW-Tag" <www-tag@w3.org>
>         Subject:        RE: Let's get some principles nailed down
> 
> 
> > -----Original Message-----
> > From: noah_mendelsohn@us.ibm.com [mailto:noah_mendelsohn@us.ibm.com]
> > Sent: Thursday, November 21, 2002 7:58 PM
> > To: Tim Bray
> > Cc: WWW-Tag
> > 
> > 
> > (...and then we have to clean up the mess that we have both 
> an Infoset 
> > and an XPath data model that are gee, almost the same but 
> not quite.)
> 
> What about the XML DOM? Is that not an XML data model as well? 
> 
> --
> PITHY WORDS OF WISDOM
> Nature is a mother. 
> 
> This posting is provided "AS IS" with no warranties, and 
> confers no rights. 
> 
> 
> 
> 
Received on Friday, 22 November 2002 16:38:17 GMT

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