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.bugs Subject: bug#55256: 27.1; Unicode noncharacters may change writing direction Date: Wed, 04 May 2022 11:17:38 +0300 Message-ID: <835yml4spp.fsf@gnu.org> References: <875ymlepz6.fsf@acrolinx.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8923"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 55256@debbugs.gnu.org To: frederik.fouvry@acrolinx.com Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed May 04 10:18:21 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1nmADE-00025c-VK for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 04 May 2022 10:18:21 +0200 Original-Received: from localhost ([::1]:35302 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nmADD-000481-Ic for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 04 May 2022 04:18:19 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:34282) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nmACw-000473-VU for bug-gnu-emacs@gnu.org; Wed, 04 May 2022 04:18:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:47803) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nmACw-0006u4-ND for bug-gnu-emacs@gnu.org; Wed, 04 May 2022 04:18:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1nmACw-0001bY-EL for bug-gnu-emacs@gnu.org; Wed, 04 May 2022 04:18:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 04 May 2022 08:18:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 55256 X-GNU-PR-Package: emacs Original-Received: via spool by 55256-submit@debbugs.gnu.org id=B55256.16516522526131 (code B ref 55256); Wed, 04 May 2022 08:18:02 +0000 Original-Received: (at 55256) by debbugs.gnu.org; 4 May 2022 08:17:32 +0000 Original-Received: from localhost ([127.0.0.1]:41700 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nmACS-0001ap-6L for submit@debbugs.gnu.org; Wed, 04 May 2022 04:17:32 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:40846) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nmACQ-0001ad-Q3 for 55256@debbugs.gnu.org; Wed, 04 May 2022 04:17:31 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:49148) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nmACL-0006nT-9e; Wed, 04 May 2022 04:17:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=STpvPLklMlIvpedWieGzSGT0b6com8NWN5ksmiJv6mc=; b=CXAoHIJJJhZQ W2GNdbFUERc3Ah5MVhE/i0Gl99jaiC06ZWP2nSYaXifFw2CrmWvkeJCTVQK8VxamySXhVbygls14k QNGKouAEL4OGkGfqIMbrOHXqo8gu3Ogm8BBBxEf3ZCzrJZrjWiejeJ3QalihkwpEIn7xolXJmBZhg /UVKi1M7KkoBIVCEr2i6yhDvhdKd/tE1goiyaOuiXgBoTvzKeeSkzxCYY9qmg6q9peUFyJ/+V6x+V 2HQbZMs2izEimDevRP+ZcRaiIiVq8y488C/MqVye4gSs8seQN74U39b2U1VeAJJF1IiV8EKAl6Yn+ CM+p0SOissn2P9nUtZtddA==; Original-Received: from [87.69.77.57] (port=3489 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 1nmACK-0003ki-PU; Wed, 04 May 2022 04:17:25 -0400 In-Reply-To: <875ymlepz6.fsf@acrolinx.com> (bug-gnu-emacs@gnu.org) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:231375 Archived-At: > Date: Wed, 04 May 2022 09:06:37 +0200 > From: frederik.fouvry--- via "Bug reports for GNU Emacs, > the Swiss army knife of text editors" > > > M-x set-input-method RET > ucs RET > jufdd0$1 RET > > If you type C-a and then step through the characters with the right > arrow, the direction is reversed. It seems like the entry of $ followed > by something else is triggering it, but that may just be an > impression/side effect. > > I suspect that the reason is that most Unicode noncharacters > (https://www.unicode.org/faq/private_use.html#nonchar1) are in an Arabic > block (https://www.unicode.org/faq/private_use.html#nonchar4b) and that > the cause is an incorrect generalisation of the properties of the > characters in this block. Correct. We failed to be in sync with the Unicode Standard in this regard. Should be fixed now on the master branch. Thanks.