[Webkit-unassigned] [Bug 69282] [chromium] some Japanese punctuation displayed wrong in vertical writing in Chromium Linux

Thu Mar 1 12:36:54 PST 2012

https://bugs.webkit.org/show_bug.cgi?id=69282

--- Comment #7 from Xiaomei Ji <xji at chromium.org>  2012-03-01 12:36:54 PST ---
(In reply to comment #6)
> (In reply to comment #5)
> > If there is no vert table in the font, but there is Unicode corresponding vertical presentation form in the font, can we introduce a fallback mapping table so that those glyphs can be displayed?
> 
> There are two kinds of relevant tables/features. 
>  1.  ‘vhea’/ ‘vmtx’ to provide vertical metrics
>  2.  ‘vert’ or ‘vrt2’ GSUB features for mapping horizontal punctuations to vertical ones
> 
> It seems you are talking about 2. Yes, we can retrieve 'vert' or 'vrt2'  from a font with good font. But I think this should be a platform independent function instead of a Chromium specific one.

I agree.

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