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RE: MathML 3 review

From: Yves Savourel <yves@opentag.com>
Date: Thu, 29 Oct 2009 07:36:46 -0600
To: "'Jirka Kosek'" <jirka@kosek.cz>, <public-i18n-its-ig@w3.org>
Message-ID: <000c01ca589c$dd022c10$97068430$@com>
Sound good to me.
-ys


> -----Original Message-----
> From: public-i18n-its-ig-request@w3.org [mailto:public-i18n-its-ig-request@w3.org] On
> Behalf Of Jirka Kosek
> Sent: Wednesday, October 28, 2009 12:28 PM
> To: public-i18n-its-ig@w3.org
> Subject: MathML 3 review
> 
> Hi folks,
> 
> I have made quick review of MathML 3.0 (http://www.w3.org/TR/MathML3/) and there are my
> comments related to ITS:
> 
> - MathML allows foreign attributes almost everywhere, so it is possible to use local ITS
> markup within MathML
> 
> - MathML allows foreign elements inside general annotations framwork
> (http://www.w3.org/TR/MathML3/chapter5.html#mixing.semantic.annotations),
> inside annotation-xml element, so it is possible to store global rules inside it
> 
> So for, so good. But I think that MathML has some areas which should be improved.
> 
> In general MathML provides markup for mathematical expressions which usually are not
> translated. But there is element called mtext, which can contain arbitrary text that is
> part of math expression:
> 
> http://www.w3.org/TR/MathML3/chapter3.html#presm.mtext
> 
> There are several problems with mtext:
> 
> - although MathML defines dir attribute for directionality on several elements, dir is not
> allowed on mtext
> 
> - schema disallows attributes from XML namespace on mtext, so it is not possible to use
> xml:lang on mtext
> 
> - there is no generic inline element (something like span in HTML) which can be used inside
> mtext to markup changes in directionality, language or other local ITS categories
> 
> If no one objects, I think that we should send inquiry to MathML WG asking for
> 
> 1. adding dir to mtext
> 2. allowing xml:lang on mtext
> 3. adding child element to mtext which can contain dir, xml:lang and any number of other
> foreign attributes (e.g. ITS local markup).
> 
> Any comments or additions?
> 
> 					Jirka
> 
> --
> ------------------------------------------------------------------
>   Jirka Kosek      e-mail: jirka@kosek.cz      http://xmlguru.cz
> ------------------------------------------------------------------
>        Professional XML consulting and training services
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Received on Thursday, 29 October 2009 13:37:21 UTC

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