[HarfBuzz] Ligatures

[Eli Zaretskii]

> From: Khaled Hosny <dr.khaled.hosny at gmail.com>
> Date: Sat, 23 May 2020 20:09:50 +0200
> Cc: harfbuzz at lists.freedesktop.org
> 
> Overall, if you can’t send the whole text (words are the absolute minimum, but this has its issues as well), don’t just send arbitrary parts of it as the result will be some inconsistent mess.

I almost understand (and agree), sans one part: the "arbitrary parts"
of what you wrote.  If we want to produce a ligature out of "ffi", the
shaper will get "fii" and nothing more.  Which part here is arbitrary?

Thanks.