[whatwg] Timed tracks: feedback compendium

[Tab Atkins Jr.]

On Wed, Sep 8, 2010 at 2:27 AM, Philip Jägenstedt <philipj at opera.com> wrote:
> On Wed, 08 Sep 2010 01:19:17 +0200, Ian Hickson <ian at hixie.ch> wrote:
>> We could say that a custom voice has to start with some punctuation or
>> other, say <:philip>?
>
> Yes, that would be better than numerical voices IMO. Unless there's a very
> good reason for making voices always apply to the whole cue, could we not
> use the same parsing for voices and other tags (i, b, ruby, rt)?
>
> Ideally, the CSS extensions
> (http://wiki.whatwg.org/wiki/Timed_tracks#CSS_extensions) should also work
> the same for voices and tags, using the normal child selectors would work.
> Something like video::cue(narrator > i) to style the following cue:
>
> 00:01.000 --> 00:02.000
> <narrator><i>The story begins
>
> I'm not sure what constraints CSS syntax puts on the prefix for custom
> voices, is : safe? Other options might be <@philip> (Twitter style) or
> <-philip> (vendor prefix style).

A token preceded by a : is just treated as a pseudoclass by the
grammar.  That's not necessarily a bad thing, though.  I believe -
should be just fine.  @ would be too.

~TJ