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#53729: 29.0.50; Tamil text not shaped in modeline Date: Thu, 03 Feb 2022 11:23:33 +0200 Message-ID: <83zgn8482y.fsf@gnu.org> References: <87h79h438r.fsf@gmail.com> <83r18l5cc6.fsf@gnu.org> <87tudg7kzz.fsf@gmail.com> <83bkzo5rgs.fsf@gnu.org> <877dacpe2k.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="38440"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 53729@debbugs.gnu.org To: Visuwesh Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Feb 03 10:27:34 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 1nFYOs-0009rQ-Gq for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 03 Feb 2022 10:27:34 +0100 Original-Received: from localhost ([::1]:50214 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nFYOq-0004MP-MY for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 03 Feb 2022 04:27:32 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:40324) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nFYMS-0004EO-7c for bug-gnu-emacs@gnu.org; Thu, 03 Feb 2022 04:25:20 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:60523) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nFYMQ-00050l-PC for bug-gnu-emacs@gnu.org; Thu, 03 Feb 2022 04:25:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1nFYMQ-00019O-N6 for bug-gnu-emacs@gnu.org; Thu, 03 Feb 2022 04:25:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 03 Feb 2022 09:25:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 53729 X-GNU-PR-Package: emacs Original-Received: via spool by 53729-submit@debbugs.gnu.org id=B53729.16438802724354 (code B ref 53729); Thu, 03 Feb 2022 09:25:02 +0000 Original-Received: (at 53729) by debbugs.gnu.org; 3 Feb 2022 09:24:32 +0000 Original-Received: from localhost ([127.0.0.1]:54416 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nFYLw-000189-0Q for submit@debbugs.gnu.org; Thu, 03 Feb 2022 04:24:32 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:33428) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nFYLu-00017v-0t for 53729@debbugs.gnu.org; Thu, 03 Feb 2022 04:24:31 -0500 Original-Received: from [2001:470:142:3::e] (port=58420 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 1nFYLF-0004tQ-H7; Thu, 03 Feb 2022 04:24:21 -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=acoNWryI9TscfVzBj+M5VJ/LNM1Tbp3CpBFlM72y1/0=; b=HCq2MFSn3BUs1lLYnJgY aSajUlgg99nmpOccX77Krw17H60cFruwfI8VH9u+5KuUN8YLwutqpguYavlDEcvptm/VZx4Mu0gKX U4WHdUBOG0VGKWAkgtqK5aB1gii9snCJl8fhJBUjocxdh6chwr8mx/pMouDNS+nBhPhmp4HOXiJwu nkrjZd84ui1+/ZFhWlnkIPuT+CM9hBnyybrP3M9Vr+BHSLVv59/kSNasG4mPu0gP0/iZZZdeqPHTU Ar/3zI/c0QLhSK2YBgbyMZFrh8iwRX2jZHW198YwFN51hCmsYSiFUn0Z6HdknQDASaP4nVJLnyJgK Je/0wlspkdBAig==; Original-Received: from [87.69.77.57] (port=4629 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 1nFYKv-000540-U3; Thu, 03 Feb 2022 04:23:35 -0500 In-Reply-To: <877dacpe2k.fsf@gmail.com> (message from Visuwesh on Thu, 03 Feb 2022 13:37:09 +0530) 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:225857 Archived-At: > From: Visuwesh > Cc: 53729@debbugs.gnu.org > Date: Thu, 03 Feb 2022 13:37:09 +0530 > > > Strange. I guess the only way of investigating this is to step with > > GDB into the code which renders the mode line, and see which font > > specifically is being used there? > > > > I suppose so but I'm confident that "Noto Serif Tamil" is the font used > in the modeline. The only other Tamil font I have installed is "Noto > Sans Tamil" and I can easily make out the difference between the two. > Font selection does not seem to be the problem, at least. It could be that Emacs selects some variant of Noto Serif Tamil (some weight or maybe width) which causes this. Btw, can you try this with other fonts and see if any of them displays the buffer name correctly in the mode line? > In either case, I think I can only get to this in two weeks. And is the > information in etc/DEBUG all I need (except the breakpoint which will be > provided?)? It should get you started, yes. There are special commands defined in src/.gdbinit that will help showing Lisp objects, and feel free to ask for guidance if you aren't sure how to proceed or have any questions. > You're right. In the OP, even simple combinations like க + ் is not > rendered right: the dot should be on top of க but in the buffer name, it > is next to it. However, Emacs seems to have no problem shaping க + ி. > The grossest of all is க + ு where the combined letter should be க plus > some kind of arc that surrounds the letter i.e., கு (hopefully Emacs > renders this fine on your end, if not, I guess I could write it down on > paper and send a picture). OK, thanks. One more question: which version of HarfBuzz do you have installed there?