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   Re: [xml-dev] XML's Scylla and Charybdis - parse and regexp

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On Tue, Apr 01, 2003 at 10:10:51AM -0500, Rich Salz wrote:
> Dare Obasanjo wrote:
> > As far as I'm concerned there is an XML data model.
>  > It's currently specced by the W3C and is named the XQuery & XPath 2.0 
> data model.
> Unh, then why didn't they call it "The XML Data Model" ?
> Until they do, it's rather unfortunate that Redmond gravitation is 
> pulling us all in that direction.

It's not clear to me that it's approriate to have a single data model
for all possible uses of XML.  A data model needed by a wristwatch for
the time is probably "integer".  A model used by an XML editor may
well include text entity nodes (I know Author/Editor did, and probably
so does XMetaL).  Since XPath can't address text entities (unfortunately),
they are not part of is data model, and, indeed, cannot be added.

An XML data model for a Web service probably doesn't make much use of
parameter entities or attribute default values, but one used for DTD
validation may well need that.

I'm not aware of any "Redmond Gravitation" in this area, overall.  Are
you suggesting .NET will move to using the XPath 2 data model as the
only interface to XML?



Liam Quin, W3C XML Activity Lead, liam@w3.org, http://www.w3.org/People/Quin/
Ankh's list of IRC clients: http://www.valinor.sorcery.net/clients/


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