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Re: Add usage of OpenType font feature to the documents (issue 328140043


From: tisimst . lilypond
Subject: Re: Add usage of OpenType font feature to the documents (issue 328140043 by address@hidden)
Date: Tue, 01 Aug 2017 09:28:35 -0700

On 2017/07/31 17:55:29, tisimst wrote:
On 2017/07/31 17:48:10, lemzwerg wrote:
> It's not Pango but HarfBuzz that processes (i.e., applies) the
OpenType
> features to a run of glyphs.

Ah, I see! Thanks for clarifying that. I didn't realize Harfbuzz was
part of the
picture. Guess I haven't looked deep enough into the code.

I looked into the latest Harfbuzz internals, and it looks like the list
of supported OpenType features is manually maintained. Not all the
features listed on the Microsoft feature registry are supported, but
many are. The full list can be found here:

https://github.com/behdad/harfbuzz/blob/9813be3d1212eef5a525d64978e0bb2032cd44d9/src/hb-coretext.cc#L439

This list covers pretty much all likely candidates a user is going to
encounter or want to use in modern fonts, so it probably isn't worth
listing each of the supported features.

https://codereview.appspot.com/328140043/



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