GNU bug report logs - #24582
25.1; [macOS] incorrect display width for ligatures (prettify-symbols-mode)

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From: Alan Third <alan <at> idiocy.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 24582 <at> debbugs.gnu.org, hafner <at> tutanota.com, YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
Subject: bug#24582: 25.1; liga incorrect work (dublicate)
Date: Tue, 11 Aug 2020 22:01:19 +0200 (CEST)

On Tue, Aug 11, 2020 at 03:55:13PM +0200, Lars Ingebrigtsen wrote:
> YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp> writes:
> 
> >> Please see the attached screenshot.
> >>> So the problem is text alignment due to display of characters such
> >>> as ⇒, is that right?
> >> Yes
> >
> > I could reproduce it with Hasklig 11pt.  Does the following patch work
> > for you?
> 
> This was more than three years ago, but there was no followup.  The
> patch still applies to Emacs 28, and it compiles and runs on Macos
> without any immediately adverse effects.
> 
> Alan, does this patch look reasonable to you?

I really have very little grasp on macfont.m, but it's Yamamoto
Mitsuharu's code, so I would tend to go along with him.
-- 
Alan Third

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