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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: Tue, 19 May 2020 17:22:04 +0300
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To: Trevor Spiteri <tspiteri@ieee.org>
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In-Reply-To: <59b018c9-9748-b84b-5768-a0a7a1b87871@ieee.org> (message from
 Trevor Spiteri on Tue, 19 May 2020 12:09:32 +0200)
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> From: Trevor Spiteri <tspiteri@ieee.org>
> Date: Tue, 19 May 2020 12:09:32 +0200
> 
> For what it's worth, LibreOffice does it differently. I think what it
> does is place the cursor on the position it would be if any following
> text was missing. So moving after the second f in ffi would move the
> cursor to the same position as after ff if the i was missing.

This is only possible if the metrics of a sole f and f inside the
ligature are identical or sufficiently close.  That is not generally
true in ligatures, not even in Latin ligatures.