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#56695: A new and old font problem with Arabic Date: Mon, 25 Jul 2022 19:06:42 +0300 Message-ID: <83k081dvn1.fsf@gnu.org> References: <1658477476172.1551810.eccda65c0f1753ea37e1355f26961ec46de3f906@spica.telekom.de> <83edydl80c.fsf@gnu.org> <1658497265479.1589294.1e7fbe71a9c257912af2f6c3a3b45532d616817d@spica.telekom.de> <83tu79jkmx.fsf@gnu.org> <1658505514827.73776.682275763c1d9abc1bd4255a438e1cc56f74d095@spica.telekom.de> <83fsitjeya.fsf@gnu.org> <1658647485367.1660023.0bfff6814be31f7bc4cfabb21b2b5c99e5f083d8@spica.telekom.de> <838roihoph.fsf@gnu.org> <1658762963915.1797956.84a8985b7fe32b4077cf35452c034178b85b515d@spica.telekom.de> 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="19914"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 56695-done@debbugs.gnu.org To: "fr_ml@t-online.de" Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Jul 25 18:09:32 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 1oG0eA-0004y6-4O for geb-bug-gnu-emacs@m.gmane-mx.org; 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Original-Received: from [87.69.77.57] (port=2293 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 1oG0bQ-0005xN-47; Mon, 25 Jul 2022 12:06:40 -0400 In-Reply-To: <1658762963915.1797956.84a8985b7fe32b4077cf35452c034178b85b515d@spica.telekom.de> (fr_ml@t-online.de) 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:237896 Archived-At: > Date: Mon, 25 Jul 2022 17:29:23 +0200 (CEST) > From: "fr_ml@t-online.de" > Cc: "56695@debbugs.gnu.org" <56695@debbugs.gnu.org> > > > This is expected: Emacs caches the results of previous text-shaping. > > You should invoke > > > > M-: (clear-composition-cache) RET > > > > to force Emacs to forget the old text-shaping results. > If I have the positioning problem, this command doesn't solve it. It doesn't always work, indeed. > > > It works, Emacs uses the font correctly. > > > And it seems that the positioning is then much better. The old problem is still there but not so often. > > > > Does this mean we can close this bug? > It's better but it's strange. And unfortunately some years ago this > problem wasn't there at all. I'm guessing "some years ago" you used different versions of the same fonts. A font that was OK in the past could regress later. For correct complex shaping, it is very important to find good fonts. I suggest to look for a good Arabic font that is fixed-pitch, and use it instead of DejaVu Sans. > But it's ok. We can close it. Many thanks. Done.