From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#17893: 24.4.50; (error "Marker does not point anywhere") Date: Sat, 25 Nov 2017 18:06:46 +0200 Message-ID: <837eue8hrd.fsf@gnu.org> References: <8facd635-be88-4990-8e7d-538db19c3e1a@default> <04af8576-c419-4d35-9c6e-7170828ac949@default> <83h8tpdkd4.fsf@gnu.org> <83o9nwd77g.fsf@gnu.org> <83shd38l86.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1511626092 13421 195.159.176.226 (25 Nov 2017 16:08:12 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 25 Nov 2017 16:08:12 +0000 (UTC) Cc: 17893@debbugs.gnu.org, monnier@IRO.UMontreal.CA To: charles@aurox.ch (Charles A. Roelli) Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Nov 25 17:08:07 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eIczs-0002sV-0F for geb-bug-gnu-emacs@m.gmane.org; Sat, 25 Nov 2017 17:08:04 +0100 Original-Received: from localhost ([::1]:53581 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eIczz-0003nt-B8 for geb-bug-gnu-emacs@m.gmane.org; Sat, 25 Nov 2017 11:08:11 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58460) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eIczt-0003mP-JP for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2017 11:08:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eIczq-0001Mg-Ex for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2017 11:08:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:49376) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eIczq-0001Mc-B5 for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2017 11:08:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1eIczq-000407-6L for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2017 11:08:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 25 Nov 2017 16:08:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17893 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 17893-submit@debbugs.gnu.org id=B17893.151162604215321 (code B ref 17893); Sat, 25 Nov 2017 16:08:02 +0000 Original-Received: (at 17893) by debbugs.gnu.org; 25 Nov 2017 16:07:22 +0000 Original-Received: from localhost ([127.0.0.1]:58057 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eIczC-0003z2-Ah for submit@debbugs.gnu.org; Sat, 25 Nov 2017 11:07:22 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:39094) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eIczA-0003yo-Kx for 17893@debbugs.gnu.org; Sat, 25 Nov 2017 11:07:20 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eIcz2-000161-FD for 17893@debbugs.gnu.org; Sat, 25 Nov 2017 11:07:15 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:58789) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eIcz2-00015x-Bd; Sat, 25 Nov 2017 11:07:12 -0500 Original-Received: from [176.228.60.248] (port=4106 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1eIcyz-0007H7-QX; Sat, 25 Nov 2017 11:07:11 -0500 In-reply-to: (charles@aurox.ch) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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" Xref: news.gmane.org gmane.emacs.bugs:140358 Archived-At: > Date: Sat, 25 Nov 2017 15:13:08 +0100 > From: charles@aurox.ch (Charles A. Roelli) > CC: monnier@IRO.UMontreal.CA, 17893@debbugs.gnu.org > > > > To solve the problem more generally, maybe clone-buffer could look for > > > local variables with a non-nil symbol property (called, say, > > > `clone-buffer-update-function'), the value of which would be a > > > function that updates the "cloned" variable properly. > > > > This is not different from running a clone-buffer-update-function: it > > again lets modes take care of the variables thy know about which need > > special handling at clone time. My problem with that is that I don't > > believe this is a complete solution. > > Can you say what you think is missing? What is missing is a way of methodically walking all the markers reachable from the cloned buffer's local variables, and changing each marker to point to the cloned buffer instead of the parent buffer.