From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: David Kastrup Newsgroups: gmane.emacs.devel Subject: Re: bidi-display-reordering is now non-nil by default Date: Fri, 05 Aug 2011 07:46:21 +0200 Organization: Organization?!? Message-ID: <87k4asz9zm.fsf@fencepost.gnu.org> References: <87fwlm7fam.fsf@fencepost.gnu.org> <87bowa7dza.fsf@fencepost.gnu.org> <877h6y7chn.fsf@fencepost.gnu.org> <831ux6cv5o.fsf@gnu.org> <87d3gpku3o.fsf@gnus.org> <834o1ypa2b.fsf@gnu.org> <87sjphhnbj.fsf@uwakimon.sk.tsukuba.ac.jp> <87k4ath4rd.fsf@uwakimon.sk.tsukuba.ac.jp> <87ipqdgu1e.fsf@uwakimon.sk.tsukuba.ac.jp> <87fwlhglqy.fsf@uwakimon.sk.tsukuba.ac.jp> <83ty9xnkcu.fsf@gnu.org> <87bow4h6j6.fsf@uwakimon.sk.tsukuba.ac.jp> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1312523208 11967 80.91.229.12 (5 Aug 2011 05:46:48 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 5 Aug 2011 05:46:48 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Aug 05 07:46:44 2011 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QpDF5-0003aV-MX for ged-emacs-devel@m.gmane.org; Fri, 05 Aug 2011 07:46:43 +0200 Original-Received: from localhost ([::1]:41496 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QpDF5-0003QM-1v for ged-emacs-devel@m.gmane.org; Fri, 05 Aug 2011 01:46:43 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:40627) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QpDF1-0003Q5-Qa for emacs-devel@gnu.org; Fri, 05 Aug 2011 01:46:40 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QpDF0-0000ft-Hc for emacs-devel@gnu.org; Fri, 05 Aug 2011 01:46:39 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:34044) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QpDF0-0000eV-8S for emacs-devel@gnu.org; Fri, 05 Aug 2011 01:46:38 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1QpDEy-0003Xk-4t for emacs-devel@gnu.org; Fri, 05 Aug 2011 07:46:36 +0200 Original-Received: from p508ed631.dip.t-dialin.net ([80.142.214.49]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 05 Aug 2011 07:46:36 +0200 Original-Received: from dak by p508ed631.dip.t-dialin.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 05 Aug 2011 07:46:36 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 17 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: p508ed631.dip.t-dialin.net X-Face: 2FEFf>]>q>2iw=B6, xrUubRI>pR&Ml9=ao@P@i)L:\urd*t9M~y1^:+Y]'C0~{mAl`oQuAl \!3KEIp?*w`|bL5qr,H)LFO6Q=qx~iH4DN; i"; /yuIsqbLLCh/!U#X[S~(5eZ41to5f%E@'ELIi$t^ Vc\LWP@J5p^rst0+('>Er0=^1{]M9!p?&:\z]|;&=NP3AhB!B_bi^]Pfkw User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) Cancel-Lock: sha1:7RVjBrne/ZvP1mOMqFaQbzROXUk= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 80.91.229.12 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:142896 Archived-At: "Stephen J. Turnbull" writes: > > And then move that string when text is inserted after the preceding > > non-mark character, or that character is deleted, yes? Sounds like > > fun. > > Put that way, not at all. But you know what? Emacs has long ago > solved such problems, at least most of them. IIUC, in XEmacs, this > could easily be implemented with a zero-length extent with appropriate > stickiness attributes. If Emacs doesn't already have such a device, Text properties can't be zero-length, overlays don't copy along with text. If this were different, you could copy an empty region and could not be sure that it did not contain extents after all. -- David Kastrup