- From: Nigel Megitt <nigel.megitt@bbc.co.uk>
- Date: Mon, 23 Feb 2015 10:02:33 +0000
- To: Timed Text Working Group <public-tt@w3.org>
Are the super/sub and full/half variants non-combinable, or is it permitted to have "super half" for example? On 23/02/2015 06:55, "Timed Text Working Group Issue Tracker" <sysbot+tracker@w3.org> wrote: >ISSUE-374: Generalize tts:fontVariantPosition [TTML2] > >http://www.w3.org/AudioVideo/TT/tracker/issues/374 > >Raised by: Glenn Adams >On product: TTML2 > >In order to support Japanese (and other CJK) usage, it is useful to >support selection of other axes of glyph variation besides position >(super/sub). In particular, selection of full width and half width >variants, as supported by the OpenType 'fwid' and 'hwid' features, as >well as ruby variants, is useful. To this end, the >tts:fontVariantPosition property should be renamed to tts:fontVariant, >and its values enhanced to specify, at a minimum: > >* super vs sub (script) forms >* full vs half width forms >* ruby forms > >Specifically, propose the value of the generalized property to adhere to >the following: > >tts:fontVariant > : normal > | [ super | sub ] || [ full | half ] || ruby > >When super or sub is specified, then the 'sups' or 'subs' OpenType >feature is enabled. When full or half is specified, then the 'fwid' or >'hwid' OpenType feature is enabled. When ruby is specified, then the >'ruby' OpenType feature is enabled. > > > >
Received on Monday, 23 February 2015 10:03:11 UTC