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From: Eli Zaretskii <eliz@gnu.org>
To: John Wiegley <johnw@gnu.org>
Cc: 66503@debbugs.gnu.org
Subject: bug#66503: 29.1; Problem rendering Arabic diacriticals
Date: Sat, 14 Oct 2023 09:57:48 +0300	[thread overview]
Message-ID: <83pm1hsnbn.fsf@gnu.org> (raw)
In-Reply-To: <m2sf6dkcg7.fsf@newartisans.com> (message from John Wiegley on Fri, 13 Oct 2023 22:19:52 -0700)

> From: John Wiegley <johnw@gnu.org>
> Cc: bug-gnu-emacs@gnu.org
> Date: Fri, 13 Oct 2023 22:19:52 -0700
> 
> I have found a workaround: By typing “shadda followed by fatha” instead of
> “fatha followed by shadda”, my Emacs renders it correctly. Here are the two
> different lines:
> 
> لَنَهْدِيَنَّهُمْ
> لَنَهْدِيَنَّهُمْ
> 
> In Mellel these are both rendered the same, but (my) Emacs treats them quite
> differently.

Both lines render identically here.  I think the conclusion is that
the macOS text-shaping engine doesn't sort the combining characters
before rendering them, which is what shaping engines are expected to
do.  However, I don't consider myself an expert on this, so maybe
raise this issue on some forum where the development of the macOS
shaper is discussed?





  reply	other threads:[~2023-10-14  6:57 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-12 17:52 bug#66503: 29.1; Problem rendering Arabic diacriticals John Wiegley
2023-10-12 19:26 ` Eli Zaretskii
2023-10-12 19:30   ` Eli Zaretskii
2023-10-12 20:40   ` John Wiegley
2023-10-13  6:20     ` Eli Zaretskii
2023-10-13 17:04       ` John Wiegley
2023-10-14  5:19       ` John Wiegley
2023-10-14  6:57         ` Eli Zaretskii [this message]
2023-10-14  8:56           ` Alan Third
2023-10-14 16:30         ` Stefan Kangas
2023-10-12 20:39 ` Alan Third
2023-10-13  6:21   ` Eli Zaretskii

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