From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: Variable-width font indentation Date: Mon, 5 Mar 2018 11:49:31 -0800 Organization: UCLA Computer Science Department Message-ID: <29d3eeff-f9a9-ec31-f72c-cfbd7d00f7e0@cs.ucla.edu> 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> 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 1520279295 2413 195.159.176.226 (5 Mar 2018 19:48:15 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 5 Mar 2018 19:48:15 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 Cc: raeburn@raeburn.org, rms@gnu.org, emacs-devel@gnu.org To: dancol@dancol.org, Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Mar 05 20:48:11 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 1esw5i-0008N6-GO for ged-emacs-devel@m.gmane.org; Mon, 05 Mar 2018 20:48:10 +0100 Original-Received: from localhost ([::1]:51271 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1esw7l-0003ho-8H for ged-emacs-devel@m.gmane.org; Mon, 05 Mar 2018 14:50:17 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:56763) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1esw79-0003hM-SY for emacs-devel@gnu.org; Mon, 05 Mar 2018 14:49:40 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1esw79-0004AT-5j for emacs-devel@gnu.org; Mon, 05 Mar 2018 14:49:39 -0500 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:49642) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1esw75-00047U-9j; Mon, 05 Mar 2018 14:49:35 -0500 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 471511615A9; Mon, 5 Mar 2018 11:49:33 -0800 (PST) Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id o0OHIK2V1y38; Mon, 5 Mar 2018 11:49:32 -0800 (PST) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 6A3EF1615D7; Mon, 5 Mar 2018 11:49:32 -0800 (PST) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id f2UWw6Sbbt_8; Mon, 5 Mar 2018 11:49:32 -0800 (PST) Original-Received: from Penguin.CS.UCLA.EDU (Penguin.CS.UCLA.EDU [131.179.64.200]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 4EBB31615A9; Mon, 5 Mar 2018 11:49:32 -0800 (PST) In-Reply-To: Content-Language: en-US X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 131.179.128.68 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:223295 Archived-At: On 03/05/2018 11:32 AM, dancol@dancol.org wrote: > 1: void foo(int a, > 2: int b) > 3: { > 4: ... > > How is any generic indentation system supposed to know that the "i" on > line 2 is supposed to line up with the "i" on line 1? It assumes the input is fixed-width, and that leading white space is intended to indent with respect to previous lines. Although it'd be some work to get Emacs to do this, I don't offhand see any algorithmic problem here.