From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#61196: 30.0.50; X11 rendering of horizontal line in log-edit mode fails with some fonts Date: Wed, 01 Feb 2023 09:29:08 +0800 Message-ID: <87ilgmxjff.fsf@yahoo.com> References: <877cx3xg24.fsf@secretsauce.net> Reply-To: Po Lu Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6399"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: 61196@debbugs.gnu.org To: Dima Kogan Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Feb 01 02:30:18 2023 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 1pN1x4-0001Vy-31 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Hermes SMTP Server) with ESMTPA ID bcb51a8dc9f70c2bd79709dc447f4de1; Wed, 01 Feb 2023 01:29:14 +0000 (UTC) In-Reply-To: <877cx3xg24.fsf@secretsauce.net> (Dima Kogan's message of "Tue, 31 Jan 2023 00:29:39 -0800") X-Mailer: WebService/1.1.21123 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo 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-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:254551 Archived-At: Dima Kogan writes: > Hi. I'm using a bleeding-edge build of emacs from git, but this > particular issue I've been seeing for maybe 6 months now, or maybe even > a year. > > I'm using a GTK build of Emacs running on X11 on GNU/Linux. Some of that > is significant. > > I can tickle the bug by selecting a particular font, entering > log-edit-mode, and entering some text: > > rm /tmp/xxx; > > emacs -Q -geometry 40x8 \ > --eval "(progn (setf (alist-get 'font default-frame-alist) \"-adobe-courier-medium-r-*-*-12-*-*-*-*-*-iso8859-*\") > (require 'log-edit) > (find-file \"/tmp/xxx\") > (log-edit-mode) > (insert \"a:b\\n\\nc d\"))" > > The result looks like the attached 12.png. Note the unrendered 000A > character block. This is a bug. It should be rendering a horizontal line > instead. And if I select a different font, it does work. I can do that > by changing the "-12-" in the above command to "-22-". The result is > attached in 22.png. > > I see it in the wild all the time when making version control commits in > emacs, and typing the commit message. > > Thanks When I last investigated this problem (I use the X core font backend all the time), it was that X fonts typically have no glyph for the newline character, which Emacs seems to expect.