From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Overlays as an AA-tree Date: Sat, 04 Feb 2017 16:22:00 -0500 Message-ID: References: <87d1jylv43.fsf@fastmail.com> <87fujv64mn.fsf@hochschule-trier.de> <87fujvpkzc.fsf@fastmail.com> <87vasr5tqd.fsf@hochschule-trier.de> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1486243376 23651 195.159.176.226 (4 Feb 2017 21:22:56 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 4 Feb 2017 21:22:56 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Feb 04 22:22:53 2017 Return-path: Envelope-to: ged-emacs-devel@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 1ca7nG-0005tH-QR for ged-emacs-devel@m.gmane.org; Sat, 04 Feb 2017 22:22:50 +0100 Original-Received: from localhost ([::1]:40899 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ca7nM-0003uV-HU for ged-emacs-devel@m.gmane.org; Sat, 04 Feb 2017 16:22:56 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:52510) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ca7md-0003tY-Sn for emacs-devel@gnu.org; Sat, 04 Feb 2017 16:22:12 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ca7md-0007of-3K for emacs-devel@gnu.org; Sat, 04 Feb 2017 16:22:11 -0500 Original-Received: from [195.159.176.226] (port=59672 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ca7mc-0007oV-TH for emacs-devel@gnu.org; Sat, 04 Feb 2017 16:22:11 -0500 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1ca7mT-0003xf-K5 for emacs-devel@gnu.org; Sat, 04 Feb 2017 22:22:01 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 14 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:c+jENCXXluGujUWz84EHE5VYNCA= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.devel:211973 Archived-At: > No problem. Simply write a NEWS entry and declare it a new feature. That's an efficient solution, indeed. > If I'm right, we *could* use one tree for front-advance overlays and one > for non-front-advance ones, such that these tree won't ever become > unordered by insertion/deletion of text. But I don't think this one is an efficient solution. I'm not even sure it will lead to simpler code (at least I'm pretty sure it will lead to more code). Stefan