From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail
From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Unicode combining characters
Date: Wed, 26 May 2021 20:14:02 +0300
Message-ID: <83lf81a04l.fsf@gnu.org>
References: <CADm7Y4kAvc3ogYK+PxPwAm2GaSzXwFjpRSFKkqoj4Z9msPXD2Q@mail.gmail.com>
 <83k0nmbubk.fsf@gnu.org>
 <CADm7Y4kgqO=2owO5XBpV9-iMavfRxRVySuATkCzcZ+_p84M+BQ@mail.gmail.com>
 <83v975ac4s.fsf@gnu.org>
Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214";
	logging-data="8364"; mail-complaints-to="usenet@ciao.gmane.io"
Cc: emacs-devel@gnu.org
To: atamariya@gmail.com
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed May 26 19:30:31 2021
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>
Envelope-to: ged-emacs-devel@m.gmane-mx.org
Original-Received: from lists.gnu.org ([209.51.188.17])
	by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
	(Exim 4.92)
	(envelope-from <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>)
	id 1llxMV-000253-LY
	for ged-emacs-devel@m.gmane-mx.org; Wed, 26 May 2021 19:30:31 +0200
Original-Received: from localhost ([::1]:45102 helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>)
	id 1llxMU-0006AB-M1
	for ged-emacs-devel@m.gmane-mx.org; Wed, 26 May 2021 13:30:30 -0400
Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46034)
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <eliz@gnu.org>) id 1llx6Y-0001T1-He
 for emacs-devel@gnu.org; Wed, 26 May 2021 13:14:03 -0400
Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:40408)
 by eggs.gnu.org with esmtp (Exim 4.90_1)
 (envelope-from <eliz@gnu.org>)
 id 1llx6X-0008Jz-AR; Wed, 26 May 2021 13:14:01 -0400
Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:3949
 helo=home-c4e4a596f7)
 by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <eliz@gnu.org>)
 id 1llx6V-00013r-VD; Wed, 26 May 2021 13:14:00 -0400
In-Reply-To: <83v975ac4s.fsf@gnu.org> (message from Eli Zaretskii on Wed, 26
 May 2021 15:54:43 +0300)
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: "Emacs development discussions." <emacs-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-devel>,
 <mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-devel>,
 <mailto:emacs-devel-request@gnu.org?subject=subscribe>
Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org
Original-Sender: "Emacs-devel"
 <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>
Xref: news.gmane.io gmane.emacs.devel:269920
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/269920>

> Date: Wed, 26 May 2021 15:54:43 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: emacs-devel@gnu.org
> 
> > (setq shr  (string 2358 2381 2352))
> > (setq sh-r (string 2358 2352))
> > 
> > (string-width shr)  ;; 2
> > (string-width sh-r) ;; 2
> 
> Sorry, it turns out I've misremembered: string-width doesn't account
> for "automatic compositions", the ones that happen due to
> composition-function-table (as opposed to "static compositions" which
> happen due to the 'composition' text property).  So this case
> currently cannot be handled correctly by string-width; we should fix
> that.

Please try the latest master branch, I hope I fixed this now.