ISSUE-24: subscript and superscript support

script

subscript and superscript support

State:
OPEN
Product:
TTML2
Raised by:
Pierre-Anthony Lemieux
Opened on:
2008-12-05
Description:
Interoperability with current practice in US captioning has been expressed as a desirable goal, however CEA 708 offers text subscript/ out - no equivalent mechanism exists in DFXP for intermediate animation. Could set font height in a span, but no way to accurately move baseline of character.

Should subscript and superscript be added to DFXP (possibly by a baseline attribute on span)?
Related Actions Items:
No related actions
Related emails:
  1. {minutes} TTML Meeting of 24/10/13 (from glenn@skynav.com on 2013-10-24)
  2. RE: TTML Agenda for 24/10/13 (from mdolan@newtbt.com on 2013-10-23)
  3. TTML Agenda for 24/10/13 (from nigel.megitt@bbc.co.uk on 2013-10-23)
  4. {status} [was Re: TTML Agenda for 8/3/12] (from glenn@skynav.com on 2012-03-08)
  5. [TTWG] Draft Minutes (was: Re: TTML Agenda for 1/3/12) (from glenn@skynav.com on 2012-03-01)
  6. Re: TTML Agenda for 23/2/12 (from geoff_freed@wgbh.org on 2012-02-22)
  7. Re: TTML Weekly meetings (from glenn@skynav.com on 2012-02-16)
  8. [minutes] teleconference 20090123 (from plh@w3.org on 2009-01-26)

Related notes:

re-opening for v-next

Sean Hayes, 15 Feb 2012, 12:16:20

re-opening for v-next

Sean Hayes, 15 Feb 2012, 12:17:23

PAL: that's a P1

Philippe Le Hégaret, 24 Oct 2013, 15:05:38

See also issue-233

Philippe Le Hégaret, 24 Oct 2013, 15:07:44

Changelog:

Created issue 'subscript and superscript support' nickname script owned by Philippe Le Hégaret on product DFXP 1.0, description '<p>Interoperability with current practice in US captioning has been expressed as a desirable goal, however CEA 708 offers text subscript/ out - no equivalent mechanism exists in DFXP for intermediate animation. Could set font height in a span, but no way to accurately move baseline of character.</p>

<p>Should subscript and superscript be added to DFXP (possibly by a baseline attribute on span)?</p>
' non-public

Philippe Le Hégaret, 5 Dec 2008, 20:27:53

Description changed to 'Interoperability with current practice in US captioning has been expressed as a desirable goal, however CEA 708 offers text subscript/ out - no equivalent mechanism exists in DFXP for intermediate animation. Could set font height in a span, but no way to accurately move baseline of character.

Should subscript and superscript be added to DFXP (possibly by a baseline attribute on span)?
'

Philippe Le Hégaret, 5 Dec 2008, 20:32:22

Product changed to DFXP v.next

Philippe Le Hégaret, 23 Jan 2009, 16:22:06

Status changed to 'closed'

Philippe Le Hégaret, 23 Jan 2009, 16:22:06

Status changed to 'open'

Sean Hayes, 15 Feb 2012, 12:17:23

Owner changed to 'Pierre-Anthony Lemieux'

Philippe Le Hégaret, 24 Oct 2013, 15:05:38


David Singer <singer@apple.com>, Nigel Megitt <nigel.megitt@bbc.co.uk>, Chairs, Thierry Michel <tmichel@w3.org>, Philippe Le Hégaret <plh@w3.org>, Staff Contacts
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