From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#9642: move-overlay creates an empty overlay with the evaporate property Date: Mon, 03 Oct 2011 05:56:37 +0200 Message-ID: <83lit2sp6y.fsf@gnu.org> References: <4E8648C6.5050905@cs.ucla.edu> <4E86C25D.5010108@cs.ucla.edu> <83hb3tce8w.fsf@gnu.org> <4E87F8D0.5090105@cs.ucla.edu> <4E890B57.2090602@cs.ucla.edu> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: dough.gmane.org 1317614275 23891 80.91.229.12 (3 Oct 2011 03:57:55 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Mon, 3 Oct 2011 03:57:55 +0000 (UTC) Cc: 9642@debbugs.gnu.org To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Oct 03 05:57:49 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 1RAZez-0003yG-Ay for geb-bug-gnu-emacs@m.gmane.org; Mon, 03 Oct 2011 05:57:45 +0200 Original-Received: from localhost ([::1]:49756 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RAZey-0001Br-OO for geb-bug-gnu-emacs@m.gmane.org; Sun, 02 Oct 2011 23:57:44 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:46755) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RAZew-0001Ba-6f for bug-gnu-emacs@gnu.org; Sun, 02 Oct 2011 23:57:43 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RAZeu-0003fK-Qi for bug-gnu-emacs@gnu.org; Sun, 02 Oct 2011 23:57:42 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:40452) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RAZeu-0003fG-PB for bug-gnu-emacs@gnu.org; Sun, 02 Oct 2011 23:57:40 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1RAZgD-00031W-Fo for bug-gnu-emacs@gnu.org; Sun, 02 Oct 2011 23:59:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 03 Oct 2011 03:59:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 9642 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 9642-submit@debbugs.gnu.org id=B9642.131761430011569 (code B ref 9642); Mon, 03 Oct 2011 03:59:01 +0000 Original-Received: (at 9642) by debbugs.gnu.org; 3 Oct 2011 03:58:20 +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 1RAZfY-00030Y-0T for submit@debbugs.gnu.org; Sun, 02 Oct 2011 23:58:20 -0400 Original-Received: from mtaout20.012.net.il ([80.179.55.166]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1RAZfW-00030Q-97 for 9642@debbugs.gnu.org; Sun, 02 Oct 2011 23:58:19 -0400 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0LSH008001HQTX00@a-mtaout20.012.net.il> for 9642@debbugs.gnu.org; Mon, 03 Oct 2011 05:56:38 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([77.126.229.231]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0LSH008XI1MDEEC0@a-mtaout20.012.net.il>; Mon, 03 Oct 2011 05:56:38 +0200 (IST) In-reply-to: <4E890B57.2090602@cs.ucla.edu> X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Sun, 02 Oct 2011 23:59:01 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 1) 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:52094 Archived-At: > Date: Sun, 02 Oct 2011 18:09:43 -0700 > From: Paul Eggert > CC: monnier@iro.umontreal.ca, 9642@debbugs.gnu.org > > But regardless of the more-general issue, > the behavior of move-overlay is not undefined in this case. > The Elisp documentation states that for overlays with the > evaporate property, "If this property is non-nil, the overlay > is deleted automatically if it becomes empty (i.e., if its > length becomes zero)." This is a general statement about > overlays, and it constrains the behavior of all Emacs built-ins. The interval 0..1 is not empty.