From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Variable-width font indentation Date: Wed, 07 Mar 2018 19:22:37 +0200 Message-ID: <83bmfzreaq.fsf@gnu.org> References: <87inaiss6l.fsf@web.de> <6FCF6ACA-4F29-4B6B-BE9D-D7130C6E9495@gnu.org> <87fu5moe4c.fsf@web.de> <877eqyocro.fsf@web.de> <83zi3uz4nb.fsf@gnu.org> <0b1dd3fa-e0b0-ed20-a256-dd92d1c1826f@dancol.org> <8bc3c4c7-dfc7-987a-95e7-bd309e2326c6@cs.ucla.edu> <03118DC0-39DA-4AB5-980E-A33809B9A5EE@raeburn.org> <83vaeas8uz.fsf@gnu.org> <83lgf6s3aa.fsf@gnu.org> <838tb5rxoe.fsf@gnu.org> <83lgf5q73p.fsf@gnu.org> <4742f0ae-86b5-48f9-4601-4dbba9e6380d@gmail.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: blaine.gmane.org 1520443264 1821 195.159.176.226 (7 Mar 2018 17:21:04 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 7 Mar 2018 17:21:04 +0000 (UTC) Cc: eggert@cs.ucla.edu, emacs-devel@gnu.org To: =?utf-8?Q?Cl=C3=A9ment?= Pit-Claudel Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Mar 07 18:21:00 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1etckI-0007gW-4Z for ged-emacs-devel@m.gmane.org; Wed, 07 Mar 2018 18:20:54 +0100 Original-Received: from localhost ([::1]:34642 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1etcmK-0000zt-W7 for ged-emacs-devel@m.gmane.org; Wed, 07 Mar 2018 12:23:01 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59343) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1etcmB-0000yL-CX for emacs-devel@gnu.org; Wed, 07 Mar 2018 12:22:52 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1etcmA-0005lY-Gp for emacs-devel@gnu.org; Wed, 07 Mar 2018 12:22:51 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:42872) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1etcm5-0005es-2d; Wed, 07 Mar 2018 12:22:45 -0500 Original-Received: from [176.228.60.248] (port=2824 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1etcm4-0001ER-Hv; Wed, 07 Mar 2018 12:22:44 -0500 In-reply-to: <4742f0ae-86b5-48f9-4601-4dbba9e6380d@gmail.com> (message from =?utf-8?Q?Cl=C3=A9ment?= Pit-Claudel on Tue, 6 Mar 2018 16:47:51 -0500) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:223411 Archived-At: > Cc: emacs-devel@gnu.org, eggert@cs.ucla.edu > From: Clément Pit-Claudel > Date: Tue, 6 Mar 2018 16:47:51 -0500 > > > I don't see a need for such a feature, sorry. We have indentation > > already; its only problem is that it doesn't work well with variable > > pitch fonts. That's what we need to try to fix, if we care about the > > capability of displaying program code with such fonts. > > I'm thoroughly confused: doesn't the algorithm that Paul proposed, and that I show an implementation of, do exactly that? Not AFAIU, no. It is an implementation of a different indentation method. I don't see why we should want to go that way, since there's nothing wrong with the existing algorithm, except for handling of variable-pitch fonts. > Do you want to get the indentation code involved because the heuristic isn't perfect? More like because the existing indentation algorithms are okay, and I see no need to change them to something else. > In your world, concretely, what happens when I open xdisp.c and press M-x variable-pitch-mode? Does everything look misaligned until I M-x indent-region the whole file? Yes. It isn't different from what happens when you change tab-width. > What about a file from a different project that uses a different indenting convention? Not sure how that is relevant. A different indentation convention will look differently, of course.