From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Daniel Colascione Newsgroups: gmane.emacs.devel Subject: Re: Variable-width font indentation Date: Tue, 6 Mar 2018 12:20:53 -0800 Message-ID: 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> <8b94336f-1bb4-84ab-263b-af5ba40bfca4@cs.ucla.edu> <673d6612-f0d4-5d34-c6ee-a276dbba3068@cs.ucla.edu> <836069rxfw.fsf@gnu.org> <83r2oxqelu.fsf@gnu.org> <1f646d8d6a6c4731cc789715df4d7e9b.squirrel@dancol.org> <83o9k1q7oi.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: blaine.gmane.org 1520367587 28862 195.159.176.226 (6 Mar 2018 20:19:47 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 6 Mar 2018 20:19:47 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 Cc: cpitclaudel@gmail.com, eggert@cs.ucla.edu, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Mar 06 21:19:43 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 1etJ3Q-00043Q-8R for ged-emacs-devel@m.gmane.org; Tue, 06 Mar 2018 21:19:20 +0100 Original-Received: from localhost ([::1]:57931 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1etJ5S-0005C0-W5 for ged-emacs-devel@m.gmane.org; Tue, 06 Mar 2018 15:21:27 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:39434) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1etJ5A-00052x-Tz for emacs-devel@gnu.org; Tue, 06 Mar 2018 15:21:09 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1etJ57-0000YM-Pa for emacs-devel@gnu.org; Tue, 06 Mar 2018 15:21:08 -0500 Original-Received: from dancol.org ([2600:3c01::f03c:91ff:fedf:adf3]:34244) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1etJ57-0000TE-G5; Tue, 06 Mar 2018 15:21:05 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dancol.org; s=x; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject; bh=PfZeprj9KWFK2J02wT/Qrqm2ZeBmFX7xG/3bKuOWeZI=; b=knw09motXt8W6FDyVHXiJlDsIoUE0/Xf99KRTJ54eJOxny3QN+Y3EJHlHcbdiaiVVrNlZzW3sPJbVIwLP+CI5rygjZgtc9H0EPntwOcXLHGt+ySub5kgklZ6GdEB+kBpBTw7N4sugw6JiHdhHvX+StB45rB8ThrqXOcF3ZNgZ2QMBYJg5UQpWzj9osHMsr+Aczi71ttnv/xP/70mOs3WhDGDu2kX5F5iJfytNgyDG6vw7eeIoYPIVoBNAUsJNXIEzTjRnciMeJFPzC8WHyforg1zu+gQr4VkuPPakDLoje+gw+cXBLrpCP2lLMXJYPqqphJTNUdzvrolxlwQFXgdfA==; Original-Received: from [172.92.145.124] (helo=[192.168.86.27]) by dancol.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from ) id 1etJ50-0004bK-W9; Tue, 06 Mar 2018 12:20:59 -0800 In-Reply-To: <83o9k1q7oi.fsf@gnu.org> Content-Language: en-US X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2600:3c01::f03c:91ff:fedf:adf3 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:223368 Archived-At: On 03/06/2018 12:18 PM, Eli Zaretskii wrote: >> Date: Tue, 6 Mar 2018 09:55:16 -0800 >> From: dancol@dancol.org >> Cc: "Daniel Colascione" , >> eggert@cs.ucla.edu, >> cpitclaudel@gmail.com, >> emacs-devel@gnu.org >> >>> You mean, save it to a disk file? I think we should insert the number >>> of blanks to align stuff with fixed-pitch font, so that it looks well >>> with those fonts. If we want to preserve the display properties >>> across sessions, we could use enriched-text-mode, I think. >> >> I don't think there's any clean way to embed this alignment information in >> arbitrary program text though. > > No, it would be necessary to reconstruct it. But any solution that > uses text properties will have the same problem. And I don't quite > see how we can align text rendered with variable-pitch font without > something like that. Right. The leading-indentation case is *barely* feasible, if you imagine that modes can accurately indent all lines automatically. I don't see a path toward internal alignment, since there's no algorithmic way to disambiguate spacing. The closest thing would be something like align-regexp, and even this facility requires manual intervention.