From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Kenichi Handa Newsgroups: gmane.emacs.bugs Subject: bug#10383: 24.0.91; (prefer-coding-system 'utf-8-with-signature) breaks the world Date: Wed, 28 Dec 2011 17:07:43 +0900 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1325059709 8565 80.91.229.12 (28 Dec 2011 08:08:29 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 28 Dec 2011 08:08:29 +0000 (UTC) Cc: 10383@debbugs.gnu.org To: Eric Hanchrow Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Dec 28 09:08:25 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RfoYi-0005i2-IC for geb-bug-gnu-emacs@m.gmane.org; Wed, 28 Dec 2011 09:08:24 +0100 Original-Received: from localhost ([::1]:59036 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RfoYh-0002Nz-UU for geb-bug-gnu-emacs@m.gmane.org; Wed, 28 Dec 2011 03:08:23 -0500 Original-Received: from eggs.gnu.org ([140.186.70.92]:53834) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RfoYe-0002Ni-Vt for bug-gnu-emacs@gnu.org; Wed, 28 Dec 2011 03:08:22 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RfoYd-0006Yj-QC for bug-gnu-emacs@gnu.org; Wed, 28 Dec 2011 03:08:20 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:55414) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RfoYd-0006Yf-NV for bug-gnu-emacs@gnu.org; Wed, 28 Dec 2011 03:08:19 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1RfobG-0004OE-DO for bug-gnu-emacs@gnu.org; Wed, 28 Dec 2011 03:11:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Kenichi Handa Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 28 Dec 2011 08:11:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 10383 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 10383-submit@debbugs.gnu.org id=B10383.132505983716843 (code B ref 10383); Wed, 28 Dec 2011 08:11:02 +0000 Original-Received: (at 10383) by debbugs.gnu.org; 28 Dec 2011 08:10:37 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Rfoaq-0004Nb-OO for submit@debbugs.gnu.org; Wed, 28 Dec 2011 03:10:36 -0500 Original-Received: from mx1.aist.go.jp ([150.29.246.133]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Rfoan-0004NP-EO for 10383@debbugs.gnu.org; Wed, 28 Dec 2011 03:10:35 -0500 Original-Received: from rqsmtp2.aist.go.jp (rqsmtp2.aist.go.jp [150.29.254.123]) by mx1.aist.go.jp with ESMTP id pBS87ilq010588; Wed, 28 Dec 2011 17:07:44 +0900 (JST) env-from (handa@m17n.org) Original-Received: from smtp2.aist.go.jp by rqsmtp2.aist.go.jp with ESMTP id pBS87his002812; Wed, 28 Dec 2011 17:07:44 +0900 (JST) env-from (handa@m17n.org) Original-Received: by smtp2.aist.go.jp with ESMTP id pBS87hbg020568; Wed, 28 Dec 2011 17:07:43 +0900 (JST) env-from (handa@m17n.org) In-Reply-To: (message from Eric Hanchrow on Tue, 27 Dec 2011 14:23:58 -0800) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Wed, 28 Dec 2011 03:11:02 -0500 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 140.186.70.43 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:55239 Archived-At: In article , Eric Hanchrow writes: > Type the following in *scratch*, then C-x C-e: > (prefer-coding-system 'utf-8-with-signature) > Now type C-x d. > You'll see an error: > Cannot open load file: dired > You will soon find that your emacs is entirely broken, since no files > can be loaded. This is because utf-8-with-signature is recognized as ASCII compatible and thus default-file-coding-system is also set to it. I've just committed a fix to make utf-8-with-signature not ASCII compatible. Please try again with the latest trunk code. By the way, as a result, now (prefer-coding-system 'utf-8-with-signature) does not change default-file-coding-system. I'm not sure what is the intention of preferring utf-8-with-signature, one may want default-file-coding-system be set to utf-8 in such a case. But, doing that automatically is too heuristic. Another possibility is that what actually wanted is such a coding as utf-8-with-signature-on-decoding-only (i.e. on decoding, BOM is recognized, but on encoding, don't produce BOM). --- Kenichi Handa handa@m17n.org