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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: Some experience with the igc branch
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> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: pipcet@protonmail.com,  ofv@wanadoo.es,  emacs-devel@gnu.org,
>   eller.helmut@gmail.com,  acorallo@gnu.org
> Date: Thu, 26 Dec 2024 08:57:17 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >   . what are "roots"?
> >   . what is the purpose of each root_create_SOMETHING function in igc.c?
> >   . what is the difference between "exact" and "ambiguous" roots, and
> >     when should we use each one in Emacs?
> 
> Coincidentally, I wrote this today, which might help, and would also be
> interesting to get some feedback for. 

Thanks, this is helpful.  Especially if you extend the MPS section to
cover the above questions.