From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail
From: "Roland Winkler" <winkler@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: minor mode for highlighting character classes such as non-ascii
 (bug 47455)
Date: Tue, 1 Jun 2021 12:56:31 -0500
Message-ID: <29903.49116.30463.24758@gargle.gargle.HOWL>
References: <23925.69978.953904.24758@gargle.gargle.HOWL>
 <m1bl8pbk6h.fsf@yahoo.es>
 <28608.63306.862705.24758@gargle.gargle.HOWL>
 <83eedlzdp6.fsf@gnu.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214";
	logging-data="10255"; mail-complaints-to="usenet@ciao.gmane.io"
Cc: emacs-devel@gnu.org, mardani29@yahoo.es
To: Eli Zaretskii <eliz@gnu.org>
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Jun 01 19:57:22 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 1lo8dm-0002Ym-Fe
	for ged-emacs-devel@m.gmane-mx.org; Tue, 01 Jun 2021 19:57:22 +0200
Original-Received: from localhost ([::1]:49406 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 1lo8dl-0000KN-Ie
	for ged-emacs-devel@m.gmane-mx.org; Tue, 01 Jun 2021 13:57:21 -0400
Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:39632)
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <winkler@gnu.org>) id 1lo8cy-0007RO-49
 for emacs-devel@gnu.org; Tue, 01 Jun 2021 13:56:32 -0400
Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:40074)
 by eggs.gnu.org with esmtp (Exim 4.90_1)
 (envelope-from <winkler@gnu.org>)
 id 1lo8cx-0004Vk-TS; Tue, 01 Jun 2021 13:56:31 -0400
Original-Received: from [2600:1700:5650:f790:7ccd:4158:4a46:b3e0] (port=36552
 helo=regnitz)
 by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)
 (Exim 4.90_1) (envelope-from <winkler@gnu.org>)
 id 1lo8cx-0002Z3-Nt; Tue, 01 Jun 2021 13:56:31 -0400
In-Reply-To: <83eedlzdp6.fsf@gnu.org>
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:270234
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/270234>

On Tue Jun 1 2021 Eli Zaretskii wrote:
> > Personally, I have been fooled in particular by unicode 'ZERO
> > WIDTH SPACE' which probably requires special treatment.  Could
> > it also make sense to give this particular character a (possibly
> > configurable) treatment by the display engine?
> 
> It already does, see glyphless-char-display.  You can customize it
> to your needs.

Excellent, I knew I may be reinventing the wheel with these ideas.