• To: mc@x... (Mike Champion)
• Subject: Re: Validating an XML document having no DTD/XSD (using
• From: John Cowan <jcowan@r...>
• Date: Sat, 13 Jul 2002 01:05:05 -0400 (EDT)
• Cc: xml-dev@l...
• In-reply-to: <TQRMOI1ZUO981XB0VRKJYJDOL8K1Z.3d2e3985@MChamp> from "Mike Champion" at Jul 11, 2002 10:05:57 PM

Mike Champion scripsit:

> BTW, can anyone explain the RELAX NG philosophy of how one associates an
> instance with a schema?  [I have a DOM WG action item to check with the
> RELAX NG folks about this,  and this post just reminded me!!!]

There is no standard way, for several reasons:

1) A receiver often wants to check the document against a standard
schema, not one specified by the sender which may not be equivalent.

2) It makes sense to check a document against different schemas for
different purposes.  In particular, checking XHTML involves three
different schemas, the "main" one and two that check various
exclusions (e.g. no A elements within A elements).

3) It's really a special case of the general XML processing problem,
which should be solved with a general solution.

-- 
John Cowan                              <jcowan@r...>
http://www.reutershealth.com            http://www.ccil.org/~cowan
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