- From: Simon Pieters <simonp@opera.com>
- Date: Thu, 05 Feb 2015 08:47:20 +0100
- To: public-texttracks@w3.org, "David Singer" <singer@apple.com>
On Wed, 04 Feb 2015 20:34:36 +0100, David Singer <singer@apple.com> wrote: > > >> Begin forwarded message: >> >> Date: February 4, 2015 at 08:39:58 PST >> From: Thierry MICHEL <tmichel@w3.org> >> To: public-tt@w3.org, 'Silvia Pfeiffer' <silviapfeiffer1@gmail.com> >> Subject: WebVTT Horizontal writing direction >> Archived-At: <http://www.w3.org/mid/54D24B5E.7060102@w3.org> >> Resent-From: public-tt@w3.org >> >> Hi, >> >> WebVTT lastest draft [1] >> http://www.w3.org/TR/2014/WD-webvtt1-20141113/ >> specifies the WebVTT vertical text cue setting >> >> A WebVTT vertical text cue setting configures the cue to use vertical >> text layout rather than horizontal text layout. Vertical text layout is >> sometimes used in Japanese, for example. The default is horizontal >> layout. >> >> vertical values: >> - vertical:rl writing direction is right to left >> - vertical:lr writing direction is left to right >> >> >> My issue is how can one set writing direction "right to left" for >> horizontal text ? (example of arabic lang) >> I couldn't find explicit mention in the spec. >> like: >> - horizontal:rl writing direction is right to left >> - horizontal:lr writing direction is left to right >> >> >> Thierry >> >> [1] http://www.w3.org/TR/2014/WD-webvtt1-20141113/ WebVTT determines the direction of a cue using "Unicode Bidirectional Algorithm's Paragraph Level steps". http://dev.w3.org/html5/webvtt/#h4_processing-model step 14.3.3. So arabic should just work. It can also be explicitly set with ‎ or ‏ at the start of the cue text. -- Simon Pieters Opera Software
Received on Thursday, 5 February 2015 07:47:53 UTC