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#18504: 24.3.93; posn-at-point intermittently returns wrong value for a valid buffer position Date: Tue, 23 Sep 2014 22:16:14 +0300 Message-ID: <83wq8uw3k1.fsf@gnu.org> References: <86mw9wfmxn.fsf@yandex.ru> <83ha041677.fsf@gnu.org> <541C0481.3050101@yandex.ru> <83a95v21qr.fsf@gnu.org> <541C2FBB.3030008@yandex.ru> <837g0z20oc.fsf@gnu.org> <541C33D1.6020707@yandex.ru> <834mw31zix.fsf@gnu.org> <541C3877.2010107@yandex.ru> <8338bn1yjw.fsf@gnu.org> <541C8526.8010204@yandex.ru> <83mw9uzrvd.fsf@gnu.org> <5421BE75.5020206@yandex.ru> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1411499859 327 80.91.229.3 (23 Sep 2014 19:17:39 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 23 Sep 2014 19:17:39 +0000 (UTC) Cc: 18504@debbugs.gnu.org To: Dmitry Gutov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Sep 23 21:17:29 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XWVaY-0000RP-VG for geb-bug-gnu-emacs@m.gmane.org; Tue, 23 Sep 2014 21:17:27 +0200 Original-Received: from localhost ([::1]:55483 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XWVaY-0006hu-Gm for geb-bug-gnu-emacs@m.gmane.org; Tue, 23 Sep 2014 15:17:26 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58792) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XWVaQ-0006hT-2n for bug-gnu-emacs@gnu.org; Tue, 23 Sep 2014 15:17:24 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XWVaF-0005qm-Se for bug-gnu-emacs@gnu.org; Tue, 23 Sep 2014 15:17:18 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:58689) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XWVaF-0005pD-Pa for bug-gnu-emacs@gnu.org; Tue, 23 Sep 2014 15:17:07 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XWVaA-0006U5-84 for bug-gnu-emacs@gnu.org; Tue, 23 Sep 2014 15:17:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 23 Sep 2014 19:17:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18504 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18504-submit@debbugs.gnu.org id=B18504.141149978524858 (code B ref 18504); Tue, 23 Sep 2014 19:17:02 +0000 Original-Received: (at 18504) by debbugs.gnu.org; 23 Sep 2014 19:16:25 +0000 Original-Received: from localhost ([127.0.0.1]:50253 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XWVZZ-0006Ss-7M for submit@debbugs.gnu.org; Tue, 23 Sep 2014 15:16:25 -0400 Original-Received: from mtaout21.012.net.il ([80.179.55.169]:39862) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XWVZW-0006Si-Aq for 18504@debbugs.gnu.org; Tue, 23 Sep 2014 15:16:23 -0400 Original-Received: from conversion-daemon.a-mtaout21.012.net.il by a-mtaout21.012.net.il (HyperSendmail v2007.08) id <0NCD00500C4I0V00@a-mtaout21.012.net.il> for 18504@debbugs.gnu.org; Tue, 23 Sep 2014 22:16:19 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout21.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NCD004ZQC77ZS30@a-mtaout21.012.net.il>; Tue, 23 Sep 2014 22:16:19 +0300 (IDT) In-reply-to: <5421BE75.5020206@yandex.ru> X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x 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:93663 Archived-At: > Date: Tue, 23 Sep 2014 22:39:49 +0400 > From: Dmitry Gutov > CC: 18504-done@debbugs.gnu.org > > On 09/20/2014 11:13 AM, Eli Zaretskii wrote: > > > This happens when posn-at-point is called with the company-mode > > overlay still (or already?) in place at that position. That overlay > > has the invisible property, so it hides the buffer text starting at > > the position with which you call posn-at-point. Therefore, > > posn-at-point returns information about the first visible buffer > > position after the overlay string. > > I see, thanks. But does the fact that we get a different return value > with different values of bidi-display-reordering, look right to you? You are not supposed to change the value of bidi-display-reordering. This variable exists only for debugging. So what happens when it is nil is "undefined behavior" ;-)