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Edit comment LC-2973 for Timed Text Working Group

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Comment LC-2973
:
Commenter: Andreas Tai <tai@irt.de>

or
Resolution status:

It would be good to give more emphasis that a presentation processor
should not reject a document "with foreign namespace elements or
attributes".

Examples for possible edits:
a) "...*The subtitle document SHALL be processed but* such elements and
attributes may be ignored by the presentation processor or
transformation processor."

b) "A *conforming* subtitle document may contain elements and attributes
that are neither specifically permitted nor forbidden by a profile."

It may be a good idea to align this paragraph with the section in TTML
5.3.2. As far as I can see it is not explicitly forbidden to use the
IMSC namespaces for extensions. So either in IMSC 1 5.3 or somewhere
else an additional constraint may be added.
(space separated ids)
(Please make sure the resolution is adapted for public consumption)


Developed and maintained by Dominique Hazaël-Massieux (dom@w3.org).
$Id: 2973.html,v 1.1 2017/08/11 06:39:30 dom Exp $
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