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: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it? Date: Tue, 25 Jan 2022 14:38:43 +0200 Message-ID: <83ilu8htws.fsf@gnu.org> References: <87sftk49ih.fsf@yahoo.com> <837dawt0h4.fsf@gnu.org> <838rv9plyf.fsf@gnu.org> <837dasntoj.fsf@gnu.org> <834k5tl4a9.fsf@gnu.org> <87mtjkt6m9.fsf@gmail.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="7927"; mail-complaints-to="usenet@ciao.gmane.io" Cc: psainty@orcon.net.nz, luangruo@yahoo.com, rms@gnu.org, emacs-devel@gnu.org To: =?utf-8?Q?K=C3=A9vin?= Le Gouguec Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Jan 25 14:16:14 2022 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 1nCLgD-0001pm-91 for ged-emacs-devel@m.gmane-mx.org; Tue, 25 Jan 2022 14:16:13 +0100 Original-Received: from localhost ([::1]:39796 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nCLgB-0005My-S1 for ged-emacs-devel@m.gmane-mx.org; Tue, 25 Jan 2022 08:16:11 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:33516) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nCL6S-0000dP-DX for emacs-devel@gnu.org; Tue, 25 Jan 2022 07:39:22 -0500 Original-Received: from [2001:470:142:3::e] (port=33366 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nCL6Q-0006pl-Px; Tue, 25 Jan 2022 07:39:15 -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=k0azgrEwMDPLn0xsjaqLEsFYephT+3QA/wMOLDEED60=; b=bqO9M0nqjTLq7qn3R5m0 7Qmbdbg6GVRco+I4fG/KqJY0InEEcDTK6z0XTC55OO8fQVi0WcAuNTWZvVH3LdANiTqbEnLpFEzpf gDGWsM8Shg+ZzmxiwkQtPSYyczelFBKM/0KeHr7F87Hqu1tu4lCEbJlU2pu09eeTZKiqeyEdemqBL GYRdOlJJKpzXD+dqAyMO4+hhVLtQrORLikWaKpgKZ3IqxW3WNSQtyL+THNQ4H2OpX4C4WMmlG2/n+ eXfNY4RLWxqLbyQ4cQ0W/6mRY65odisvjHvyXu4Y6oDS/PEF9V9jFg1f0anFpgFcGdIk9Uv7fehU5 QRdIGjOJL0Mi9A==; Original-Received: from [87.69.77.57] (port=1694 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nCL65-0000Y7-Vg; Tue, 25 Jan 2022 07:38:58 -0500 In-Reply-To: <87mtjkt6m9.fsf@gmail.com> (message from =?utf-8?Q?K=C3=A9vin?= Le Gouguec on Tue, 25 Jan 2022 12:08:46 +0100) 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" Xref: news.gmane.io gmane.emacs.devel:285365 Archived-At: > From: Kévin Le Gouguec > Cc: rms@gnu.org, psainty@orcon.net.nz, luangruo@yahoo.com, > emacs-devel@gnu.org > Date: Tue, 25 Jan 2022 12:08:46 +0100 > > Richard, would you happen to be talking about literal U+FB01 or U+FB03 > characters (fi or ffi, respectively, named "LATIN SMALL LIGATURE FI/FFI"), > rather than the kind of ligature Emacs produces when configured to do so > with "fi" and "ffi"? As I explained in that message, Emacs doesn't produce any ligatures when it displays on TTY frames. It expects the terminal to display the ligatures when it receives the characters that should ligate.