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   Re: Deterministic behavior in processors

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  • From: John Cowan <cowan@locke.ccil.org>
  • To: XML Dev <xml-dev@ic.ac.uk>
  • Date: Wed, 05 Aug 1998 13:13:04 -0400

David Brownell wrote:

> Not quite -- it's always an "error" to not have a DTD when
> you're validating.  But it's not a "fatal error", and it's
> allowed (in fact, typical) to continue processing.

Hmm.  You are right and I was wrong.  A DTD-less document
will provoke Element Valid, Attribute Value Type, and
Notation Declared validation errors.

Note that clause 1.2 says validation errors should be
reported at user option, whereas clause 5.1 says validation
errors must be reported, period.

I note that "fatal errors" are of only three kinds:  failure to be
WF, an encoding declaration specifying an encoding the processor
cannot handle, and disallowed entity references (no unparsed entity
refs, no general entity refs in the DTD, no external entity refs in
attribute values).

John Cowan	http://www.ccil.org/~cowan		cowan@ccil.org
	You tollerday donsk?  N.  You tolkatiff scowegian?  Nn.
	You spigotty anglease?  Nnn.  You phonio saxo?  Nnnn.
		Clear all so!  'Tis a Jute.... (Finnegans Wake 16.5)

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