From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B Date: Sat, 12 Jan 2013 19:01:16 +0100 Message-ID: <50F1A4EC.7090702@gmx.at> References: <50EE7BE5.2060806@gmx.at> <83hamohmtj.fsf@gnu.org> <50EFCA6D.7090702@gmx.at> <83ip74ume7.fsf@gnu.org> <50EFE99A.5070508@gmx.at> <838v80ugv1.fsf@gnu.org> <50F021EC.4040107@gmx.at> <50F054A0.2040606@gmx.at> <83pq1btu5p.fsf@gnu.org> <50F17365.6050006@gmx.at> <83obgusb4w.fsf@gnu.org> <50F19165.1060600@gmx.at> <83libys5sg.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1358013726 21287 80.91.229.3 (12 Jan 2013 18:02:06 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 12 Jan 2013 18:02:06 +0000 (UTC) Cc: 13399@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Jan 12 19:02:24 2013 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 1Tu5PP-0008Uj-Di for geb-bug-gnu-emacs@m.gmane.org; Sat, 12 Jan 2013 19:02:19 +0100 Original-Received: from localhost ([::1]:51143 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tu5P9-0003cN-FC for geb-bug-gnu-emacs@m.gmane.org; Sat, 12 Jan 2013 13:02:03 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:54382) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tu5Oz-0003Qn-Rr for bug-gnu-emacs@gnu.org; Sat, 12 Jan 2013 13:02:01 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Tu5Ov-00075q-HV for bug-gnu-emacs@gnu.org; Sat, 12 Jan 2013 13:01:53 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:51742) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tu5Ov-00075m-EC for bug-gnu-emacs@gnu.org; Sat, 12 Jan 2013 13:01:49 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1Tu5P8-0004eN-Ow for bug-gnu-emacs@gnu.org; Sat, 12 Jan 2013 13:02:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: martin rudalics Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 12 Jan 2013 18:02:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 13399 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 13399-submit@debbugs.gnu.org id=B13399.135801370717819 (code B ref 13399); Sat, 12 Jan 2013 18:02:02 +0000 Original-Received: (at 13399) by debbugs.gnu.org; 12 Jan 2013 18:01:47 +0000 Original-Received: from localhost ([127.0.0.1]:57198 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1Tu5Os-0004dK-7Y for submit@debbugs.gnu.org; Sat, 12 Jan 2013 13:01:47 -0500 Original-Received: from mout.gmx.net ([212.227.15.18]:57869) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1Tu5Op-0004d3-Q6 for 13399@debbugs.gnu.org; Sat, 12 Jan 2013 13:01:44 -0500 Original-Received: from mailout-de.gmx.net ([10.1.76.30]) by mrigmx.server.lan (mrigmx002) with ESMTP (Nemesis) id 0MckQB-1TcHWn1OKH-00HyYq for <13399@debbugs.gnu.org>; Sat, 12 Jan 2013 19:01:24 +0100 Original-Received: (qmail invoked by alias); 12 Jan 2013 18:01:24 -0000 Original-Received: from 62-47-61-165.adsl.highway.telekom.at (EHLO [62.47.61.165]) [62.47.61.165] by mail.gmx.net (mp030) with SMTP; 12 Jan 2013 19:01:24 +0100 X-Authenticated: #14592706 X-Provags-ID: V01U2FsdGVkX18kbtp9Y/gk4jBmoUTPiqjm0s2Rj//KZOYNRSlBh0 76dQ0FYChz0d7k In-Reply-To: <83libys5sg.fsf@gnu.org> X-Y-GMX-Trusted: 0 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.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:69677 Archived-At: >> But PARTIALLY nil means to return nil if the position is only partially >> visible. And in this case `fit-window-to-buffer' should try to enlarge >> the window. > > Should it? It enlarges the window in line units, so the enlarged > window will again show a partially visible line, no? That's the clue. The bug is in this part of `fit-window-to-buffer': (if (zerop delta) ;; Return zero if DELTA became zero in the process. 0 The delta comes from `count-screen-lines' and that function returns the number of lines in the buffer but NOT in canonical line units. Removing this conditional now seems to fix the problem for sure. Still `fit-window-to-buffer' would benefit from a function that returned either the pixel height needed for displaying the region or its number of canonical line units. Obviously, the former would be preferable when we switch to pixel-sized windows. martin