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Re: conformance constraints on producers that go beyond syntax

From: Henry S. Thompson <ht@inf.ed.ac.uk>
Date: Mon, 21 Sep 2009 18:28:40 +0100
To: Jonathan Rees <jar@creativecommons.org>
Cc: www-tag@w3.org, Alan Ruttenberg <alanruttenberg@gmail.com>
Message-ID: <f5b4oqwnr5j.fsf@hildegard.inf.ed.ac.uk>
Hash: SHA1

Jonathan Rees writes:

> There's nothing suggesting that [HTML] inherits anything from SGML other
> than its definition of conforming document. The HTML5 draft is
> careful to say "This specification describes the conformance
> criteria for user agents and documents" omitting any mention of
> authors. SGML has been expunged. The bit about author good practice
> has been removed, promoting the no-tag-abuse rule to normative
> status.

I suspect we have a [tendentious, in the spirit of this thread :-]
difference of interpretation here.  I interpret the SGML definition of
conformance as applying to documents and that _includes_ the
requirement that the semantics of the documents must conform to the
semantics specified by the application in the document type
definition, which means, _inter alia_ no tag abuse.

So HTML _does_ inherit the prohibition on tag abuse from SGML, IMO.

- -- 
       Henry S. Thompson, School of Informatics, University of Edinburgh
                         Half-time member of W3C Team
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                       URL: http://www.ltg.ed.ac.uk/~ht/
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Received on Monday, 21 September 2009 17:29:20 UTC

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