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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Ligatures (was: Unify the Platforms: Cairo+FreeType+Harfbuzz
 Everywhere (except TTY))
Date: Mon, 18 May 2020 19:49:28 +0300
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To: <tomas@tuxteam.de>
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> Date: Mon, 18 May 2020 18:45:43 +0200
> Cc: pipcet@gmail.com, emacs-devel@gnu.org
> From:  <tomas@tuxteam.de>
> 
> > On second thought, I think I misunderstood you.  If the font that is
> > used shows "ffi" as a _single_ glyph ffi, and LibreOffice indeed
> > highlights parts of this glyph, then I'd like to know how it does
> > that [...]
> 
> Didn't work for me [1]. It treated the whole ligature as one "character".

That's what I'd expect.