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Re: SAX2: Namespace proposal

• From: David Megginson <david@m...>
• To: XMLDev list <xml-dev@i...>
• Date: Mon, 20 Dec 1999 11:57:02 -0500 (EST)

Tim Bray writes:
 > At 08:21 AM 12/20/99 -0500, David Megginson wrote:
 > >> - a pure namespaces view
 > >> - a simultaneous namespaces and XML 1.0 view
 > >> - a pure XML 1.0 view
 > >
 > >I agree -- I think that this is the cleanest approach.
 > 
 > I have a great deal of trouble imagining a situation in which the 
 > "simultaneous" view is desirable or even safe.  Could someone help out
 > with a use-case please?

The classic use case is a transformation where the result will be
still used by an author, sort of an XML sed.  I don't find this case
particularly persuasive, but clearly the DOM WG did, and as a result,
the Infoset was constrained to follow.

What I like about James's approach is that it's transparent for proper
Namespace processing -- you get what you expect -- and the (very
slight) extra difficulty is offloaded onto those who want the original
prefix.

 > If I'm right, then given that SAX1 already does the pure XML1.0
 > view, why do we need more than one view?

When you need both simultaneously.  I have never encountered such a
case, and I imagine that it's mostly imaginary, but I would like to be 
able to manage a little more DOM2 compatibility in SAX2.


All the best,


David

-- 
David Megginson                 david@m...
           http://www.megginson.com/

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