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Re: Exploring new vocabularies for HTML

From: David Carlisle <davidc@nag.co.uk>
Date: Tue, 1 Apr 2008 10:05:47 +0100
Message-Id: <200804010905.m3195lxg008080@edinburgh.nag.co.uk>
To: ian@hixie.ch
Cc: public-html@w3.org, www-math@w3.org

> I don't understand; the two paragraphs above seem to contradict each 
> other. Could you elaborate on what you mean when you say that not 
> including Content MathML is ok, and on what you mean when you say that it 
> is important that we include semantics?

FF supports semantics to the extent that it has a couple of lines of css
setting the display properties of annotation and annotation-xml to none.
of course in an xml context there is no problem of parsing past the
annotations, no special rules are required. Hopefully that would also be
the case with html5 that an annotation representing a well formed tree
could just be parsed as a bunch of unknown elements.

Note that a different level of support would be possible. IE/MathPOlayer
for example will natively render content mathml without the author
needing to supply a presentation form. However I think that a profile of
MathML that doesn't supply this level of support for Content MathML is
more likely to be the eventual outcome for HTML5.

> I would imagine that a much better and more productive way to provide
> Content MathML 

It seems odd that existing practice of web browsers has an overwhelming
effect on the design of html5 such that strange quirks in the handling
of specific elemnts gets baked into the spec, but for any other software
you are quite happy to reject decades of experience and just state that
existing software and practice is wrong and must change.

> What would it mean for the HTML5 language to "support" semantics? 
as above, it would mean having a default display property of none on the

> Yes, I think we would probably want to include them. I understand there is 
> some issue with &phi;, though.

You can't win on phi whatever you do, it will come back and bite you.


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Received on Tuesday, 1 April 2008 09:13:02 UTC

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