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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: master 7e387c9: * lisp/man.el (Man-width-max): New defcustom
 (bug#32536, bug#9385)
Date: Mon, 09 Dec 2019 15:30:55 +0200
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Cc: juri@jurta.org, emacs-devel@gnu.org
To: martin rudalics <rudalics@gmx.at>
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> Cc: emacs-devel@gnu.org
> From: martin rudalics <rudalics@gmx.at>
> Date: Mon, 9 Dec 2019 10:20:38 +0100
> 
>  > I was thinking about the
>  > default face being remapped, which can be easily tested.
> 
> For some value of "easily".

??? face-remapping-alist is a simple alist, and there should be no
difficulty in telling whether 'default' appears in it.  Or what am I
missing?

> Emacs 28 should give 'window-body-height' a special interpretation
> of the PIXELWISE argument which will let you get the body width in
> terms of the remapped face.  Hopefully.

Isn't default-font-width provide the information necessary for man.el
to do this calculation more accurately?