From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Alp Aker Newsgroups: gmane.emacs.bugs Subject: bug#18417: 24.3.93; posn-at-point confused by fill-column-indicator Date: Sun, 7 Sep 2014 15:52:34 -0400 Message-ID: References: <86sik513vf.fsf@yandex.ru> <837g1fcpm9.fsf@gnu.org> <540CAA26.8070303@yandex.ru> <83zjebb4i2.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=e89a8f64672f260ad305027f0bb0 X-Trace: ger.gmane.org 1410119607 11369 80.91.229.3 (7 Sep 2014 19:53:27 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 7 Sep 2014 19:53:27 +0000 (UTC) Cc: 18417@debbugs.gnu.org, Dmitry Gutov To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Sep 07 21:53:20 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 1XQiWU-0002lc-9I for geb-bug-gnu-emacs@m.gmane.org; Sun, 07 Sep 2014 21:53:18 +0200 Original-Received: from localhost ([::1]:39425 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XQiWT-0002jw-Ux for geb-bug-gnu-emacs@m.gmane.org; Sun, 07 Sep 2014 15:53:17 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40494) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XQiWK-0002il-CS for bug-gnu-emacs@gnu.org; Sun, 07 Sep 2014 15:53:14 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XQiWE-00006q-7A for bug-gnu-emacs@gnu.org; Sun, 07 Sep 2014 15:53:08 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:41456) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XQiWE-00006m-3s for bug-gnu-emacs@gnu.org; Sun, 07 Sep 2014 15:53:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XQiWD-0007h3-MS for bug-gnu-emacs@gnu.org; Sun, 07 Sep 2014 15:53:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Alp Aker Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 07 Sep 2014 19:53:01 +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=B18417.141011956329551 (code B ref 18417); Sun, 07 Sep 2014 19:53:01 +0000 Original-Received: (at 18417) by debbugs.gnu.org; 7 Sep 2014 19:52:43 +0000 Original-Received: from localhost ([127.0.0.1]:33020 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XQiVu-0007gY-W5 for submit@debbugs.gnu.org; Sun, 07 Sep 2014 15:52:43 -0400 Original-Received: from mail-wi0-f182.google.com ([209.85.212.182]:50075) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XQiVs-0007gE-HE for 18417@debbugs.gnu.org; Sun, 07 Sep 2014 15:52:41 -0400 Original-Received: by mail-wi0-f182.google.com with SMTP id z2so1650797wiv.9 for <18417@debbugs.gnu.org>; Sun, 07 Sep 2014 12:52:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=CVRgEOtTsD3yYvKLvRJtDpWHWSnbLMnVHRJjGAIdA8M=; b=qt6l9BJNVM11SOaJyC6rvHUJCtxCOt0lwfJiyRF6+8LxQjFOh2GHlFtMb0ZJx51CHX 1gTDwyLkZ9uN+1uUETk4PMcdZVPpjbR7diOEMvEHG1ISLZFO+GLRWKsRZJHS4PbjqbeA VHOvH87jQGEZxOKN4rvsk7EkGzNthVpVt28UbE8hznhaNNvPslolUkLBmZqRnOR/xPLs W6SSvm28vroNRXWWUFe2YzpnWC2Oky86cfrbtzlqdKPiY1J39oaqvAmVM6pho8DWuyRQ oO596EqaA5zi6DKyYi0JZee+JvfCrvWHNa+In41izmIEbvI/4zC9RTEVoUKUw5nBYbC7 6Pug== X-Received: by 10.180.36.236 with SMTP id t12mr18089157wij.38.1410119554696; Sun, 07 Sep 2014 12:52:34 -0700 (PDT) Original-Received: by 10.217.39.84 with HTTP; Sun, 7 Sep 2014 12:52:34 -0700 (PDT) In-Reply-To: <83zjebb4i2.fsf@gnu.org> 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:93115 Archived-At: --e89a8f64672f260ad305027f0bb0 Content-Type: text/plain; charset=UTF-8 > 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. 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. --e89a8f64672f260ad305027f0bb0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
> There are 2 special characters, u+e000 and u+e00= 1, each one has a
> display-table setting to display it as something = else, then there's an
> empty overlay with an after-string made o= f these special characters
> that has a display property with :align-= to, followed by an image...
> And I'm not sure I listed all of th= e "features".=C2=A0 (The 'cursor'
> property I omit= ted intentionally, because I believe I know why they
> are needed.)= =C2=A0 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.=C2=A0 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.
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