XHTML & Schemas

[David Megginson]

Oren Ben-Kiki writes:

 > > This is something that SGML got wrong and XML got right -- SGML
 > > assumed that there was always a *single* DTD that applied to any
 > > existing document (though that never worked in practice, so we
 > > always had to invent kludges for non-trivial systems), so that a
 > > document instance could not exist independently of its schema and
 > > vice-versa (external DTD subsets are not independent objects in
 > > SGML, but simply part of the document that includes them).
 > 
 > The quoted section 4.1 of the XSchema draft seems to directly
 > contradict his view of what's right, so XML did not "get it
 > right". Am I missing something again?

Yes -- XML-Schema is not XML.  XML-Schema is (currently) getting it
wrong, but they're in the early drafts, so I still hope for their
redemption.


All the best,


David

-- 
David Megginson                 david at megginson.com
           http://www.megginson.com/

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