• To: 'John Cowan' <jcowan@r...>
• Subject: RE: Interesting mailing list & a rare broadside
• From: "Bullard, Claude L (Len)" <clbullar@i...>
• Date: Wed, 5 Jun 2002 15:27:35 -0500
• Cc: elitani@c..., simonstl@s..., xml-dev@l...

Right, but mechanically, one has to ask the instance 
before getting the schema.   It seems inefficient.

And with a DOCTYPE, one could parse subtrees by 
changing that value and ignoring the outer 
tags.   Not always but occasionally useful so 
yet another lost functionality.

len


From: John Cowan [mailto:jcowan@r...]

"Bullard, Claude L (Len)" scripsit:

> Wouldn't it have been better to provide something 
> analogous to DOCTYPE support where 
> 
> <!DOCTYPE thisIsTheROOTforThisPass
> 
> is explicit rathen than relying on syntactic 
> position which may be accidental?

Not really.  In SGML the DOCTYPE declaration had to say what the root
was, because the start-tag of the root element might not appear in the
instance due to start-tag omission.  In XML there is no start-tag
omission, so it is redundant to specify the root in the DOCTYPE declaration,
as it always must agree with the first and last tags in the instance.

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