From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: relative line numbers and folding: how to make they play along? Date: Fri, 15 Jul 2016 10:54:51 -0400 Message-ID: References: <8360sbcvbz.fsf@gnu.org> <83lh158eza.fsf@gnu.org> <83bn208djh.fsf@gnu.org> <83mvlj7513.fsf@gnu.org> <83d1mf6kxc.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1468594551 12690 80.91.229.3 (15 Jul 2016 14:55:51 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 15 Jul 2016 14:55:51 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Jul 15 16:55:45 2016 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bO4We-0008MY-7n for geh-help-gnu-emacs@m.gmane.org; Fri, 15 Jul 2016 16:55:36 +0200 Original-Received: from localhost ([::1]:33008 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bO4Wd-0007Wf-E6 for geh-help-gnu-emacs@m.gmane.org; Fri, 15 Jul 2016 10:55:35 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:52155) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bO4WE-0007T6-3C for help-gnu-emacs@gnu.org; Fri, 15 Jul 2016 10:55:10 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bO4W9-0004IY-T5 for help-gnu-emacs@gnu.org; Fri, 15 Jul 2016 10:55:09 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:41857) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bO4W9-0004Hu-MX for help-gnu-emacs@gnu.org; Fri, 15 Jul 2016 10:55:05 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1bO4W8-0007xU-10 for help-gnu-emacs@gnu.org; Fri, 15 Jul 2016 16:55:04 +0200 Original-Received: from 69-165-156-121.dsl.teksavvy.com ([69.165.156.121]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 15 Jul 2016 16:55:04 +0200 Original-Received: from monnier by 69-165-156-121.dsl.teksavvy.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 15 Jul 2016 16:55:04 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 25 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 69-165-156-121.dsl.teksavvy.com User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) Cancel-Lock: sha1:AheXD/9QFYePIHXv6qeOSLdxmMg= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:110868 Archived-At: >> I was more thinking of the situation I mentioned in some other >> discussion: rewrite the top-level of the redisplay code in Elisp, > Conditioning the minor feature discussed in this thread on such a > thorough rewrite of the display code sounds like overkill to me. There's no conditioning at play here. I was only discussing how to make it reasonably efficient. > Frankly, I don't see any significant gains in your suggestion. > Basically, you suggest to leave the bulk of the display code > unchanged, and introduce a Lisp-level driver that calls its parts one > after the other. That's right. The idea being to try and keep as much of the existing code as possible. > I think a much better plan is to expose some of the C data structures > to Lisp, and provide focused hooks at strategic places for Lisp to be > able to affect what redisplay does, by accessing those data structures > and making decisions based on that. I think my plan fits this description. But other plans would too, Stefan