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: =?US-ASCII?Q?Re=3A_Can_watermarking_Unicode_text_using_invisible_dif?= =?US-ASCII?Q?ferences_sneak_through_Emacs=2C_or_can_Emacs_detect_it=3F?= Date: Wed, 26 Jan 2022 07:38:11 +0200 Message-ID: <3E718CA2-889F-4AEE-B79C-EB3A221D1CB2@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> <83ilu8htws.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31357"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: K-9 Mail for Android Cc: psainty@orcon.net.nz, luangruo@yahoo.com, emacs-devel@gnu.org, kevin.legouguec@gmail.com To: rms@gnu.org, Richard Stallman Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Jan 26 06:44:28 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 1nCb6Z-0007yy-Q4 for ged-emacs-devel@m.gmane-mx.org; Wed, 26 Jan 2022 06:44:27 +0100 Original-Received: from localhost ([::1]:59588 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nCb6X-0000HQ-1b for ged-emacs-devel@m.gmane-mx.org; Wed, 26 Jan 2022 00:44:25 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:51532) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nCb0d-0006dD-IH for emacs-devel@gnu.org; Wed, 26 Jan 2022 00:38:19 -0500 Original-Received: from [2001:470:142:3::e] (port=53974 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 1nCb0d-0001eW-0L; Wed, 26 Jan 2022 00:38:19 -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:In-Reply-To:Subject:To:From: Date; bh=5pRwC6LyV1/w1+TAgkmEpIKwTwM4CVFku9Los+zG3fY=; b=oIjTxL9u3codBcFV2DA9 JphrEb7UKzoW6pZtDP07sWHY52PmxJoyA0ajwc6R8nyURH5/0lB45GEflySjYovmj8VKlcYMUnViE 3ya4oCBNDxJf3wnrCmxs7nZAVxBPl42r3bxmw+ZkfAFwxQoDckVG+g29FQ6zvidGQwx0gs9Byn2a1 vje4BUrsCpA8VEp+1cW/eUhgD6JgpU2qtBnpZXCR/fsCoE2XbeF+3euZFNDP2VI6RD2tQOnKK6m7e 6q3NP3N6QsZqAp7WeXTLmzOk8MEYe8YvNk3RgzCpiiWFp/m9IKdF5eipChWSswt260jCxyIJV88p/ Cf/bKC8kSGKmGA==; Original-Received: from [2a02:14f:1fe:e40e::2805:5172] (port=52078 helo=[IPv6:::1]) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nCb0W-0008WT-Bh; Wed, 26 Jan 2022 00:38:13 -0500 In-Reply-To: Autocrypt: addr=eliz@gnu.org; keydata= mQENBF+pf4UBCAC6vjkWLSAsQpe8YIGKLQzNOJx/IjGtCdFF8uzmO5jmME+SD8ROuJN+t5KXVw58 uzu75EFD0vHTY9e+udJ2gkpuy0NnzkFcbumdLLo2ERKCoSctZZRhzKXI5z5cHxCqW0B2ygHRrRLt oNlGID7bAgcgSViT1ptGqTXO7zGVu4Airok7dNzcPtHgns8GlR5YAFX0TvE6oGd0l2VPghNeVJKJ OjrbfhoDxl3ucFpqbqMH8z9HTLDOFpz8UaYYUdJMi3xX6vwTZxI2sM2RRVLUpZyllAkSMI4lln1O OgazM/62DJUs/rKIHKBnF6h3/qsJUjUYXaAHbrXY26mWllAd536lABEBAAG0I0VsaSBaYXJldHNr aWkgKGVsaXopIDxlbGl6QGdudS5vcmc+iQE4BBMBAgAiBQJfqX+FAhsDBgsJCAcDAgYVCAIJCgsE FgIDAQIeAQIXgAAKCRCRwSYvAeuNOYUQB/4/iIKKOG45ijNaRoTvmJJZMvj1S07WQxEm7c5SHEeE QbLOAxB9vESOV7sLueuN3oqEndtzyYt4x1WTSBmHFF7h5fcCMjBs41siOIp5Sj/xD0Bvaa0IKGCR SZ7PAo8Mq3wgajXpTpn9vxE2PmtzA8KdEE0K1+f9pVAfOpUIcCl44rIxLUW352XG0y7iz6c/O6LB 1deOKMiKFctKO7pBti1dJEm1ImewLH3H8uTbwspLOs3EB8xhsESxmTidnze68HX2jt+2EeMgCdki NU+LWbexQZPfIS7+ZmE06ll0v6+Jy7ZdTkCCRypKWTnW7pIFsq/p4kybV8O/kHSV6B4vvQBfuQEN BF 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:285413 Archived-At: On January 26, 2022 5:39:17 AM GMT+02:00, Richard Stallman = wrote: >=20 > I didn't know that there were two different kinds of ligatures in Unicod= e=2E It is not specific to ligatures=2E Some character sequences that are supp= osed to be composed on display have precomposed variants with their own cod= epoints=2E This is generally for legacy reasons=2E The most widely known = example is Latin characters with diacritics, such as =C3=A7 and =C3=A0=2E