From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: New hook before-region-change-functions wanted Date: Fri, 08 Sep 2017 18:10:31 +0300 Message-ID: <83d171xm3c.fsf@gnu.org> References: <20170908144657.GA3463@ACM> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1504883465 15734 195.159.176.226 (8 Sep 2017 15:11:05 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 8 Sep 2017 15:11:05 +0000 (UTC) Cc: emacs-devel@gnu.org To: Alan Mackenzie Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Sep 08 17:10:58 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 1dqKvh-0003Q1-Td for ged-emacs-devel@m.gmane.org; Fri, 08 Sep 2017 17:10:50 +0200 Original-Received: from localhost ([::1]:45888 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dqKvp-00040b-4C for ged-emacs-devel@m.gmane.org; Fri, 08 Sep 2017 11:10:57 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:39548) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dqKve-000408-Nv for emacs-devel@gnu.org; Fri, 08 Sep 2017 11:10:52 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dqKva-0004Vp-Dc for emacs-devel@gnu.org; Fri, 08 Sep 2017 11:10:46 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:36927) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dqKva-0004VU-5q; Fri, 08 Sep 2017 11:10:42 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3941 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1dqKvV-00036M-HR; Fri, 08 Sep 2017 11:10:41 -0400 In-reply-to: <20170908144657.GA3463@ACM> (message from Alan Mackenzie on Fri, 8 Sep 2017 14:46:57 +0000) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e 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:218019 Archived-At: > Date: Fri, 8 Sep 2017 14:46:57 +0000 > From: Alan Mackenzie > > I would like to implement a new abnormal hook, > before-change-region-functions. It would be called just before a change > in the buffer's restriction (i.e., from widen and from narrow-to-region) > and each function on it would take two parameters, the beginning and end > of the new region being set. If this hook will react to restriction, then before-change-region-functions is not an appropriate name for it. It's not the region you are changing.