From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: [RFC] Add :invisible face attribute Date: Mon, 23 Dec 2024 15:43:23 +0200 Message-ID: <86r05y4iro.fsf@gnu.org> References: <20241218160813.31108-1-mina86@mina86.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="2408"; mail-complaints-to="usenet@ciao.gmane.io" Cc: rms@gnu.org, mina86@mina86.com, emacs-devel@gnu.org To: Jean Louis Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Dec 23 14:44:35 2024 Return-path: 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 ) id 1tPijb-0000RQ-2P for ged-emacs-devel@m.gmane-mx.org; Mon, 23 Dec 2024 14:44:35 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tPij4-00074S-5f; Mon, 23 Dec 2024 08:44:02 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tPiiz-00073I-9q for emacs-devel@gnu.org; Mon, 23 Dec 2024 08:43:57 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tPiix-0000yX-OH; Mon, 23 Dec 2024 08:43:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=GsAs+kzisUFo2TB02a++LBHeR6SvLK8qd+9Q2L7JTaA=; b=oc82WNW3q/aRrqynuUmf +qkM7vRKz78nhiXJvKuFKKL+I6HUaDcNz5RRC2nVRGE0m8X0xlp23MRzyBA9Cinfslx68EFbvZIlF GsbP4PvD2JplsfXFGKBJvMkUm2EiOjLLAAiftbSva5vwClGR1HXN9ytbU+Le3733OeTF23CcLf9iV tWA528NffTwn7bBrqrnGFu+pMF/YcF+wqGL+JNt2wJKKlHraRHz1t5hLe9xrL9+01IFH+jLMTopcg Ub3lyQnpv1wd+C3RfhafA5sMvlNCWboxOlfwlG1VqAAiyaHHeFN82424WKV/8SXh3BF3ynISrHdhh nyRH5kMrkySbqQ==; In-Reply-To: (message from Jean Louis on Mon, 23 Dec 2024 09:22:33 +0300) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:326906 Archived-At: > Date: Mon, 23 Dec 2024 09:22:33 +0300 > From: Jean Louis > Cc: Michal Nazarewicz , emacs-devel@gnu.org > > > > Introduce :invisible face attribute which makes foreground to be the > > > same as background rendering the text invisible; or when :invert-video > > > is also in effect, background is the same as foreground. > > > > Why is this feature worth having> What is useful about it? > > > (info "(elisp) Special Properties") > > I think it already exists in Emacs: > > ‘invisible’ > A non-‘nil’ ‘invisible’ property can make a character invisible on > the screen. *Note Invisible Text::, for details. > > (info "(elisp) Invisible Text") That's a different feature. Its effect on display is very different.