[Webkit-unassigned] [Bug 77568] Different font glyphs for Hebrew/Yiddish not being displayed

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Feb 3 04:51:29 PST 2012


--- Comment #8 from Kenichi Ishibashi <bashi at chromium.org>  2012-02-03 04:51:29 PST ---
Hi Steve,

(In reply to comment #7)
> This longstanding OpenType technology *enables* a simple way to make fine typographic distinctions between languages.  If you're not a native reader of those languages, it seems a little delicate.  But to native readers, it can make a big difference.

I agree that it could be a big difference.

> Let me emphasize that this is easy.  Just properly pass the 'lang' attribute down to the underlying font rendering libraries.

What is the exact mean when you say "passing 'lang' attribute to the underling libraries"? WebKit uses different font rendering libraries for each port. For example, Mac Safari/Chrome use CoreText, Chrome Win uses Uniscribe, and Chrome Linux uses (old) HarfBuzz. Which APIs we can use to solve the problem? I'm happy to create patches if it's actually easy as you said. If you can tell us what OpenType feature should we use, it would be also helpful.

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