Re: [css-ruby] ruby-position: inter-character

On Friday 2014-09-19 10:41 -0500, David Hyatt wrote:
> On Sep 19, 2014, at 6:23 AM, Richard Ishida <ishida@w3.org> wrote:
> > I think Dave is on the right track. I think the CSS spec doesn't need to specify in detail how to arrange the bopomofo letters and tones relative to themselves - I think however the Chinese layout requirements document which is in preparation probably should.
> > 
> > I propose we carry on.
> 
> My preference would be for layout code to do it, since then I can just implement it in WebKit, and it would work with any font. Requiring the font to support it seems impractical to me.
> 
> In order for layout code to do it, though, I need really good documentation telling me how to implement it. 

At first glance, this seems odd to me, though I admit I'm far from
being an expert in this area.

Why should bopomofo be unique here?  Isn't the norm that correct
positioning of glyphs (whether they're combining marks within a
grapheme cluster or separate grapheme clusters) be handled by the
font and the positioning of its glyphs, rather than being handled at
as high a level as CSS layout?  Or is there some particular reason
for an exception here?

-David

-- 
𝄞   L. David Baron                         http://dbaron.org/   𝄂
𝄢   Mozilla                          https://www.mozilla.org/   𝄂
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