From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Kenichi Handa Newsgroups: gmane.emacs.devel Subject: Re: save-buffer in tar-mode Date: Thu, 5 Feb 2004 08:36:51 +0900 (JST) Sender: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Message-ID: <200402042336.IAA02815@etlken.m17n.org> References: <20040204.135033.207583862.Takaaki.Ota@am.sony.com> NNTP-Posting-Host: deer.gmane.org Mime-Version: 1.0 (generated by SEMI 1.14.3 - "Ushinoya") Content-Type: text/plain; charset=US-ASCII X-Trace: sea.gmane.org 1075938067 16880 80.91.224.253 (4 Feb 2004 23:41:07 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 4 Feb 2004 23:41:07 +0000 (UTC) Cc: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Thu Feb 05 00:40:57 2004 Return-path: Original-Received: from quimby.gnus.org ([80.91.224.244]) by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 1AoWdd-00066J-00 for ; Thu, 05 Feb 2004 00:40:57 +0100 Original-Received: from monty-python.gnu.org ([199.232.76.173]) by quimby.gnus.org with esmtp (Exim 3.35 #1 (Debian)) id 1AoWdd-0005zY-00 for ; Thu, 05 Feb 2004 00:40:57 +0100 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.24) id 1AoWcQ-0001g9-P0 for emacs-devel@quimby.gnus.org; Wed, 04 Feb 2004 18:39:42 -0500 Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.24) id 1AoWal-0000d2-RV for emacs-devel@gnu.org; Wed, 04 Feb 2004 18:37:59 -0500 Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.24) id 1AoWZs-0007fe-3I for emacs-devel@gnu.org; Wed, 04 Feb 2004 18:37:37 -0500 Original-Received: from [192.47.44.130] (helo=tsukuba.m17n.org) by monty-python.gnu.org with esmtp (Exim 4.24) id 1AoWZo-0007Sw-OQ for emacs-devel@gnu.org; Wed, 04 Feb 2004 18:37:00 -0500 Original-Received: from fs.m17n.org (fs.m17n.org [192.47.44.2]) by tsukuba.m17n.org (8.11.6p2/3.7W-20010518204228) with ESMTP id i14Naqh16656; Thu, 5 Feb 2004 08:36:52 +0900 (JST) (envelope-from handa@m17n.org) Original-Received: from etlken.m17n.org (etlken.m17n.org [192.47.44.125]) by fs.m17n.org (8.11.6p2/3.7W-20010823150639) with ESMTP id i14Naqc28496; Thu, 5 Feb 2004 08:36:52 +0900 (JST) Original-Received: (from handa@localhost) by etlken.m17n.org (8.8.8+Sun/3.7W-2001040620) id IAA02815; Thu, 5 Feb 2004 08:36:51 +0900 (JST) Original-To: Takaaki.Ota@am.sony.com In-reply-to: <20040204.135033.207583862.Takaaki.Ota@am.sony.com> (message from Tak Ota on Wed, 04 Feb 2004 13:50:33 -0800 (PST)) User-Agent: SEMI/1.14.3 (Ushinoya) FLIM/1.14.2 (Yagi-Nishiguchi) APEL/10.2 Emacs/21.3 (sparc-sun-solaris2.6) MULE/5.0 (SAKAKI) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.2 Precedence: list List-Id: Emacs development discussions. List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Xref: main.gmane.org gmane.emacs.devel:19719 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:19719 In article <20040204.135033.207583862.Takaaki.Ota@am.sony.com>, Tak Ota writes: > Recently I realized that undo information was discarded as soon as > executing save-buffer in a buffer which was opened from tar-mode. > tar-subfile-save-buffer at a glance didn't lead me to exactly where it > discarded undo information. Anyway, is this an intended behavior? Yes. tar-mode toggles enable-multibyte-characters on saving a file by set-buffer-multibyte and that function discards undo info. To fix it, we must record this toggling in buffer-undo-list. I proposed it long ago but was rejected at that time (I don't remember the reason, perhaps, just because it's not worth to work on it). --- Ken'ichi HANDA handa@m17n.org