From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Daniel Brockman Newsgroups: gmane.emacs.devel Subject: Re: `overlay-arrow-position' should be automatically buffer-local Date: Wed, 19 Oct 2005 06:22:34 +0200 Message-ID: <87psq2b0fp.fsf@wigwam.deepwood.net> References: <87u0feb5b7.fsf@wigwam.deepwood.net> <87irvucjdg.fsf@cut.bc.hsia.telus.net> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1129695832 15377 80.91.229.2 (19 Oct 2005 04:23:52 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 19 Oct 2005 04:23:52 +0000 (UTC) Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Oct 19 06:23:43 2005 Return-path: Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1ES5SL-0001Fi-0A for ged-emacs-devel@m.gmane.org; Wed, 19 Oct 2005 06:21:37 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1ES5SK-0007aB-FD for ged-emacs-devel@m.gmane.org; Wed, 19 Oct 2005 00:21:36 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1ES5Ru-0007OB-Ui for emacs-devel@gnu.org; Wed, 19 Oct 2005 00:21:11 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1ES5Rt-0007MZ-Ec for emacs-devel@gnu.org; Wed, 19 Oct 2005 00:21:10 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1ES5Rt-0007MJ-6J for emacs-devel@gnu.org; Wed, 19 Oct 2005 00:21:09 -0400 Original-Received: from [80.91.229.2] (helo=ciao.gmane.org) by monty-python.gnu.org with esmtp (TLS-1.0:RSA_AES_128_CBC_SHA:16) (Exim 4.34) id 1ES5Rs-000826-Ud for emacs-devel@gnu.org; Wed, 19 Oct 2005 00:21:09 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1ES5Pc-0000aw-8e for emacs-devel@gnu.org; Wed, 19 Oct 2005 06:18:48 +0200 Original-Received: from c-60b670d5.028-10-67766c2.cust.bredbandsbolaget.se ([213.112.182.96]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 19 Oct 2005 06:18:48 +0200 Original-Received: from daniel by c-60b670d5.028-10-67766c2.cust.bredbandsbolaget.se with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 19 Oct 2005 06:18:48 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-To: emacs-devel@gnu.org Original-Lines: 37 Original-X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: c-60b670d5.028-10-67766c2.cust.bredbandsbolaget.se X-Face: :&2UWGm>e24)ip~'K@iOsA&JT3JX*v@1-#L)=dUb825\Fwg#`^N!Y*g-TqdS AevzjFJe96f@V'ya8${57/T'"mTd`1o{TGYhHnVucLq!D$r2O{IN)7>.0op_Y`%r;/Q +(]`3F-t10N7NF\.Mm0q}p1:%iqTi:5]1E]rDF)R$9.!,Eu'9K':y9^U3F8UCS1M+A$ 8[[[WT^`$P[vu>P+8]aQMh9giu&fPCqLW2FSsGs User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) Cancel-Lock: sha1:NnzYssLPGEc51NgvZJl2zsrPpxQ= X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:44303 Archived-At: Ryan Yeske writes: > - Variable: overlay-arrow-position > > [...] > > The overlay string is displayed only in the buffer > that this marker points into. Thus, only one buffer > can have an overlay arrow at any given time. > > Which I think was true in 21. Interesting. That would certainly explain why it has not been made to automatically become buffer-local. Here is a seemingly relevant entry from src/ChangeLog: 2004-03-02 Kim F. Storm * window.h (struct window): New member overlay_arrow_bitmap. * window.c (make_window): Initialize overlay_arrow_bitmap. * xdisp.c (Voverlay_arrow_variable_list): New variable to properly implement and integrate multiple overlay arrows with redisplay. [...] Since the restriction seems to have been lifted, I think we should remove the paragraph that Ryan quoted from the manual and make the variable automatically become buffer-local. -- Daniel Brockman