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#18417: 24.3.93; posn-at-point confused by fill-column-indicator Date: Sun, 07 Sep 2014 22:56:54 +0300 Message-ID: <83y4tvb3w9.fsf@gnu.org> References: <86sik513vf.fsf@yandex.ru> <837g1fcpm9.fsf@gnu.org> <540CAA26.8070303@yandex.ru> <83zjebb4i2.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1410119846 13909 80.91.229.3 (7 Sep 2014 19:57:26 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 7 Sep 2014 19:57:26 +0000 (UTC) Cc: 18417@debbugs.gnu.org, dgutov@yandex.ru To: Alp Aker Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Sep 07 21:57:16 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 1XQiaK-00049A-3t for geb-bug-gnu-emacs@m.gmane.org; Sun, 07 Sep 2014 21:57:16 +0200 Original-Received: from localhost ([::1]:39434 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XQiaJ-0003D9-Ol for geb-bug-gnu-emacs@m.gmane.org; Sun, 07 Sep 2014 15:57:15 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40870) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XQiaB-0003D3-KL for bug-gnu-emacs@gnu.org; Sun, 07 Sep 2014 15:57:12 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XQia6-00015D-9k for bug-gnu-emacs@gnu.org; Sun, 07 Sep 2014 15:57:07 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:41464) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XQia6-000159-7V for bug-gnu-emacs@gnu.org; Sun, 07 Sep 2014 15:57:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XQia5-0007nN-TN for bug-gnu-emacs@gnu.org; Sun, 07 Sep 2014 15:57:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 07 Sep 2014 19:57:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18417 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18417-submit@debbugs.gnu.org id=B18417.141011981729954 (code B ref 18417); Sun, 07 Sep 2014 19:57:01 +0000 Original-Received: (at 18417) by debbugs.gnu.org; 7 Sep 2014 19:56:57 +0000 Original-Received: from localhost ([127.0.0.1]:33028 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XQia1-0007n4-8M for submit@debbugs.gnu.org; Sun, 07 Sep 2014 15:56:57 -0400 Original-Received: from mtaout21.012.net.il ([80.179.55.169]:49071) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XQiZz-0007mr-F9 for 18417@debbugs.gnu.org; Sun, 07 Sep 2014 15:56:56 -0400 Original-Received: from conversion-daemon.a-mtaout21.012.net.il by a-mtaout21.012.net.il (HyperSendmail v2007.08) id <0NBJ00E00QWDAC00@a-mtaout21.012.net.il> for 18417@debbugs.gnu.org; Sun, 07 Sep 2014 22:56:49 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout21.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NBJ00ED3REO9S30@a-mtaout21.012.net.il>; Sun, 07 Sep 2014 22:56:49 +0300 (IDT) In-reply-to: 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:93117 Archived-At: > Date: Sun, 7 Sep 2014 15:52:34 -0400 > From: Alp Aker > Cc: Dmitry Gutov , 18417@debbugs.gnu.org > > > There are 2 special characters, u+e000 and u+e001, each one has a > > display-table setting to display it as something else, then there's an > > empty overlay with an after-string made of these special characters > > that has a display property with :align-to, followed by an image... > > And I'm not sure I listed all of the "features". (The 'cursor' > > property I omitted intentionally, because I believe I know why they > > are needed.) Why each one of these is needed? > > At least some of that is cruft, as at one point I was trying to support all of > v22, v23, and v24, and there were various differences in the behavior of > overlay-strings (as well as the 'cursor property) among those versions. That was my guess, yes. > I'll try to simplify the implementation and see if I can come up > with something that doesn't trigger any UB in the display engine. Thank you.