From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.bugs Subject: bug#15343: 24.3.50; Document window point better in Emacs manual Date: Wed, 11 Sep 2013 08:00:25 -0700 (PDT) Message-ID: <19c3183a-6e69-4627-b004-db572034f873@default> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1378911685 5605 80.91.229.3 (11 Sep 2013 15:01:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 11 Sep 2013 15:01:25 +0000 (UTC) To: 15343@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Sep 11 17:01:24 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 1VJlv0-00034f-V2 for geb-bug-gnu-emacs@m.gmane.org; Wed, 11 Sep 2013 17:01:23 +0200 Original-Received: from localhost ([::1]:36450 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VJlv0-0007MK-Ha for geb-bug-gnu-emacs@m.gmane.org; Wed, 11 Sep 2013 11:01:22 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40962) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VJlup-0007LA-Ew for bug-gnu-emacs@gnu.org; Wed, 11 Sep 2013 11:01:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VJlug-0004bW-DV for bug-gnu-emacs@gnu.org; Wed, 11 Sep 2013 11:01:11 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:47543) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VJlug-0004bS-9H for bug-gnu-emacs@gnu.org; Wed, 11 Sep 2013 11:01:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VJluf-0004Ht-Ri for bug-gnu-emacs@gnu.org; Wed, 11 Sep 2013 11:01:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Drew Adams Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 11 Sep 2013 15:01:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 15343 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.137891166016471 (code B ref -1); Wed, 11 Sep 2013 15:01:01 +0000 Original-Received: (at submit) by debbugs.gnu.org; 11 Sep 2013 15:01:00 +0000 Original-Received: from localhost ([127.0.0.1]:55836 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VJlud-0004Hb-En for submit@debbugs.gnu.org; Wed, 11 Sep 2013 11:00:59 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:39172) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VJlub-0004HN-FY for submit@debbugs.gnu.org; Wed, 11 Sep 2013 11:00:58 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VJluO-0004Yx-2E for submit@debbugs.gnu.org; Wed, 11 Sep 2013 11:00:52 -0400 Original-Received: from lists.gnu.org ([2001:4830:134:3::11]:59716) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VJluN-0004Yq-VC for submit@debbugs.gnu.org; Wed, 11 Sep 2013 11:00:43 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40822) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VJluG-0007H4-Jw for bug-gnu-emacs@gnu.org; Wed, 11 Sep 2013 11:00:43 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VJlu9-0004Wz-9q for bug-gnu-emacs@gnu.org; Wed, 11 Sep 2013 11:00:36 -0400 Original-Received: from aserp1040.oracle.com ([141.146.126.69]:30283) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VJlu9-0004Wd-3m for bug-gnu-emacs@gnu.org; Wed, 11 Sep 2013 11:00:29 -0400 Original-Received: from ucsinet21.oracle.com (ucsinet21.oracle.com [156.151.31.93]) by aserp1040.oracle.com (Sentrion-MTA-4.3.1/Sentrion-MTA-4.3.1) with ESMTP id r8BF0RrC021447 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 11 Sep 2013 15:00:28 GMT Original-Received: from userz7022.oracle.com (userz7022.oracle.com [156.151.31.86]) by ucsinet21.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id r8BF0QKl021249 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 11 Sep 2013 15:00:26 GMT Original-Received: from abhmt111.oracle.com (abhmt111.oracle.com [141.146.116.63]) by userz7022.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id r8BF0Quo012472 for ; Wed, 11 Sep 2013 15:00:26 GMT X-Priority: 3 X-Mailer: Oracle Beehive Extensions for Outlook 2.0.1.8 (707110) [OL 12.0.6680.5000 (x86)] X-Source-IP: ucsinet21.oracle.com [156.151.31.93] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). 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:78233 Archived-At: The concept of point is fundamental to Emacs, and it is introduced in (emacs) `Point'. However, users sometimes get confused because multiple windows for the same buffer have different notions of point: the window point. This concept is hardly presented in the Emacs manual, AFAICT. The most that is said is this, which is easily missed in (emacs) `Point': Furthermore, if a buffer is displayed in multiple windows, each of those windows has its own value of point. Great, but what are the consequences of that? In particular, what are some gotchas that might confuse users? I don't have a great suggestion of what the improvement might be, but I think something more is needed to dispel or prevent this confusion. Perhaps an example, to illustrate the notion and the possible confusion. This problem report comes to mind in this regard. Dunno whether the problem reported here is really due to confusion about `window-point', but I can see such a problem possibly coming from such confusion. http://stackoverflow.com/questions/18734850/point-moves-when-switching-buff= ers-in-emacs-aquamacs/18744622#18744622 In GNU Emacs 24.3.50.1 (i686-pc-mingw32) of 2013-08-31 on ODIEONE Bzr revision: 114088 rgm@gnu.org-20130901021232-sazo0qla2qgcko95 Windowing system distributor `Microsoft Corp.', version 6.1.7601 Configured using: `configure --prefix=3D/c/Devel/emacs/binary --enable-checking=3Dyes,glyphs 'CFLAGS=3D-O0 -g3' LDFLAGS=3D-Lc:/Devel/emacs/lib CPPFLAGS=3D-Ic:/Devel/emacs/include'