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#56820: outline-minor-mode replacing the first character with an arrow Date: Thu, 08 Sep 2022 20:45:55 +0300 Message-ID: <83czc5ep4c.fsf@gnu.org> References: <87ilngmaei.fsf@gnus.org> <86wnaojst4.fsf@mail.linkov.net> <86mtbfdqdj.fsf@mail.linkov.net> <83ilm3ko51.fsf@gnu.org> <86edwotx6n.fsf@mail.linkov.net> <83tu5kii23.fsf@gnu.org> <86mtbcqx5u.fsf@mail.linkov.net> <83r10oih91.fsf@gnu.org> <86mtbbuj55.fsf@mail.linkov.net> <83a67bggst.fsf@gnu.org> <86edwm7351.fsf@mail.linkov.net> <83h71ifeqo.fsf@gnu.org> <86o7vplq9f.fsf@mail.linkov.net> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="32813"; mail-complaints-to="usenet@ciao.gmane.io" Cc: larsi@gnus.org, yilkalargawworkneh@gmail.com, 56820@debbugs.gnu.org To: Juri Linkov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Sep 08 19:47:24 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 1oWLcZ-0008LY-Rc for geb-bug-gnu-emacs@m.gmane-mx.org; 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Original-Received: from [87.69.77.57] (port=3498 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 1oWLbN-0005Zz-Lw; Thu, 08 Sep 2022 13:46:10 -0400 In-Reply-To: <86o7vplq9f.fsf@mail.linkov.net> (message from Juri Linkov on Thu, 08 Sep 2022 20:39:24 +0300) 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:241931 Archived-At: > From: Juri Linkov > Cc: yilkalargawworkneh@gmail.com, larsi@gnus.org, 56820@debbugs.gnu.org > Date: Thu, 08 Sep 2022 20:39:24 +0300 > > >> I counted ~100 occurrences of display_line_numbers in xdisp.c. > >> So I guess display_outlines could be added based on code > >> for display_line_numbers using the same strategy as > >> tab_line was added based on header_line. > >> > >> If this is a good idea, I could look into doing this > >> after finishing all already opened issues, probably > >> around December. > > > > I don't think I understand what you mean by "same strategy" here, so I > > cannot answer the question yet. > > > > Vdisplay_line_numbers is used in xdisp.c for several purposes: > > > > . adjust layout calculations for the space taken by line numbers > > . disable some redisplay optimizations that cannot be used when line > > numbers (especially relative numbers) are displayed > > . produce and display the line numbers for relevant lines > > > > Which one(s) are "strategy" for the purpose of this discussion? > > The strategy is to reuse the existing code that adjusts layout calculations > to display the line numbers, and to display outline arrows after line numbers. So you are talking only about the first bullet above.