From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#37633: Column part interpreted wrong in compilation mode Date: Sat, 05 Oct 2019 21:53:02 +0300 Message-ID: <83v9t32fe9.fsf@gnu.org> References: <2282407.NbK4RY0fEn@daiyu> <83zhif2n0q.fsf@gnu.org> <83y2xz2mmi.fsf@gnu.org> <3214582.DlieoQrNBz@daiyu> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="79764"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 37633@debbugs.gnu.org, anton@mips.complang.tuwien.ac.at To: Bernd Paysan Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Oct 05 20:54:14 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iGpC1-000Kad-PU for geb-bug-gnu-emacs@m.gmane.org; Sat, 05 Oct 2019 20:54:13 +0200 Original-Received: from localhost ([::1]:58412 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iGpC0-0005DL-Jy for geb-bug-gnu-emacs@m.gmane.org; Sat, 05 Oct 2019 14:54:12 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:32785) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iGpBq-0005BE-TB for bug-gnu-emacs@gnu.org; Sat, 05 Oct 2019 14:54:03 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iGpBp-0008Lo-Sp for bug-gnu-emacs@gnu.org; Sat, 05 Oct 2019 14:54:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:36405) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iGpBp-0008Lj-Pq for bug-gnu-emacs@gnu.org; Sat, 05 Oct 2019 14:54:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1iGpBp-0005u7-NZ for bug-gnu-emacs@gnu.org; Sat, 05 Oct 2019 14:54:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 05 Oct 2019 18:54:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 37633 X-GNU-PR-Package: emacs Original-Received: via spool by 37633-submit@debbugs.gnu.org id=B37633.157030160122646 (code B ref 37633); Sat, 05 Oct 2019 18:54:01 +0000 Original-Received: (at 37633) by debbugs.gnu.org; 5 Oct 2019 18:53:21 +0000 Original-Received: from localhost ([127.0.0.1]:45226 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iGpBB-0005tC-Ed for submit@debbugs.gnu.org; Sat, 05 Oct 2019 14:53:21 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:51875) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iGpB9-0005sy-66 for 37633@debbugs.gnu.org; Sat, 05 Oct 2019 14:53:19 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:44875) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1iGpB2-0007sX-Gs; Sat, 05 Oct 2019 14:53:12 -0400 Original-Received: from [176.228.60.248] (port=2606 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1iGpB0-000582-VX; Sat, 05 Oct 2019 14:53:12 -0400 In-reply-to: <3214582.DlieoQrNBz@daiyu> (message from Bernd Paysan on Sat, 05 Oct 2019 19:05:26 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:168392 Archived-At: > From: Bernd Paysan > Cc: 37633@debbugs.gnu.org, anton@mips.complang.tuwien.ac.at > Date: Sat, 05 Oct 2019 19:05:26 +0200 > > We can likely assume that the auto-detected encoding is the correct one, i.e. > buffer-file-coding-system can be used (the default for the optional encoding > system parameter for bufferpos-to-filepos and filepos-to-bufferpos). Encoding of subprocess output is generally not auto-detected, it uses the defaults derived from the locale. I don't recommend auto-detecting, because that's quite fragile (and is not needed here anyway, IMO). > Problem with precision: "exact" requires encoding the entire file, so it's > slow for large files. Particularly with automatically generated files, this > is likely not acceptable, so "approximate" could be good enough. We cannot use 'exact' here because there's no file per se: we only have the compiler output. We must use 'approximate'.