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Re: URGENT: Preparing for next round of TAG Review of HTML 5

From: Henry S. Thompson <ht@inf.ed.ac.uk>
Date: Thu, 03 Sep 2009 17:54:19 +0100
To: noah_mendelsohn@us.ibm.com
Cc: www-tag@w3.org
Message-ID: <f5bws4ghsuc.fsf@hildegard.inf.ed.ac.uk>
noah_mendelsohn writes:

> [send input]

I'm behind, but this is going more slowly than I had hoped, partly
because I'm finding the structure of the document inimical to finding
answers to my questions easily -- that's in itself an issue, but one I
can't formulate concretely yet. . .

I've attached my raw notes, which are complete up through the end of
section 2.4.

Specific issues meriting consideration:

 1.4 implies XForms _could not_ be reconstructed within HTML, which is
 a best contentious and at worst manifestly false, and appeals to an
 unidentified decision about "the previously chosen direction for the
 Web's evolution".

 1.7 Is HTML5 two things or three out of the following?:
    1) An abstract language;
    2) In-memory representations of resources that use that abstract
    3) Concrete syntax

 2.2 Document conformance and implementation performance are in
 principle decoupled, with the consequence that every document-content
 'must' has to be checked against the parser, and every 'parse error'
 or algorithm 'fail' or 'abort' has to be checked against the document
 constraints.  Which, if either, of these is the so-called authoring
 spec. based on?

 2.4.2, 2.4.3 -- two changes from XHTML/HTML 4.01, one more
 restrictive, one less -- a general issue -- are these changes a)
 tabulated anywhere, b) motivated?

 [no specific locus] There's a strong implication, if not an
 explicitly stated requirement, that only character sequences are *XML
 documents*.  This appears to rule out the possibility of conformant
 processing of XHTML in e.g. a pipeline processor.  There is a more
 general problem in that the word 'document' is used both of character
 sequences and of DOM *Documents*, and it is not always clear what
 constraints apply to what.


       Henry S. Thompson, School of Informatics, University of Edinburgh
                         Half-time member of W3C Team
      10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440
                Fax: (44) 131 651-1426, e-mail: ht@inf.ed.ac.uk
                       URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged spam]

Received on Thursday, 3 September 2009 16:55:06 UTC

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