From mboxrd@z Thu Jan  1 00:00:00 1970
Path: main.gmane.org!not-for-mail
From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Using overlay in register
Date: Mon, 22 Mar 2004 00:24:53 -0500
Sender: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org
Message-ID: <E1B5Hvh-00078e-U3@fencepost.gnu.org>
References: <20040318.193346.21592706.jet@gyve.org>
	<E1B4YPw-0007h8-Ef@fencepost.gnu.org>
	<20040321.230322.85700391.jet@gyve.org>
Reply-To: rms@gnu.org
NNTP-Posting-Host: deer.gmane.org
X-Trace: sea.gmane.org 1079933589 19096 80.91.224.253 (22 Mar 2004 05:33:09 GMT)
X-Complaints-To: usenet@sea.gmane.org
NNTP-Posting-Date: Mon, 22 Mar 2004 05:33:09 +0000 (UTC)
Cc: emacs-devel@gnu.org
Original-X-From: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Mon Mar 22 06:33:05 2004
Return-path: <emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org>
Original-Received: from quimby.gnus.org ([80.91.224.244])
	by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian))
	id 1B5I3d-0001rR-00
	for <emacs-devel@deer.gmane.org>; Mon, 22 Mar 2004 06:33:05 +0100
Original-Received: from monty-python.gnu.org ([199.232.76.173])
	by quimby.gnus.org with esmtp (Exim 3.35 #1 (Debian))
	id 1B5I3c-0002AN-00
	for <emacs-devel@quimby.gnus.org>; Mon, 22 Mar 2004 06:33:04 +0100
Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org)
	by monty-python.gnu.org with esmtp (Exim 4.30)
	id 1B5I3c-0002BO-Ma
	for emacs-devel@quimby.gnus.org; Mon, 22 Mar 2004 00:33:04 -0500
Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.30)
	id 1B5I0U-0000n2-Qk
	for emacs-devel@gnu.org; Mon, 22 Mar 2004 00:29:50 -0500
Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.30)
	id 1B5Hzx-0000Ug-QT
	for emacs-devel@gnu.org; Mon, 22 Mar 2004 00:29:48 -0500
Original-Received: from [199.232.76.164] (helo=fencepost.gnu.org)
	by monty-python.gnu.org with esmtp (Exim 4.30) id 1B5Hzx-0000UQ-L8
	for emacs-devel@gnu.org; Mon, 22 Mar 2004 00:29:17 -0500
Original-Received: from rms by fencepost.gnu.org with local (Exim 4.24)
	id 1B5Hvh-00078e-U3; Mon, 22 Mar 2004 00:24:53 -0500
Original-To: Masatake YAMATO <jet@gyve.org>
In-reply-to: <20040321.230322.85700391.jet@gyve.org> (message from Masatake
	YAMATO on Sun, 21 Mar 2004 23:03:22 +0900 (JST))
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.4
Precedence: list
List-Id: "Emacs development discussions." <emacs-devel.gnu.org>
List-Unsubscribe: <http://mail.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://mail.gnu.org/pipermail/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <http://mail.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=subscribe>
Errors-To: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org
Xref: main.gmane.org gmane.emacs.devel:20702
X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:20702

    I have seen emacs's strange behaviors twice; Emacs returned an overlay whose start is
    greater than its end. I cannot find the way to reproduce it.

That is a bug.  It should never happen.

    (defun register-get-overlay-position (overlay)
      "Get the position for OVERLAY."
      (min (overlay-start overlay) (overlay-end overlay)))

Please eliminate that function and use overlay-start.