From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.devel Subject: Re: Is there something like `on-display-functions'? Date: Fri, 29 Jan 2010 13:17:51 +0000 Message-ID: <20100129131751.GC3272@muc.de> References: <20100127153733.GD3432@muc.de> <83k4v34f49.fsf@gnu.org> <83fx5r48gd.fsf@gnu.org> <20100128103856.GC2285@muc.de> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1264770824 14023 80.91.229.12 (29 Jan 2010 13:13:44 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 29 Jan 2010 13:13:44 +0000 (UTC) Cc: Eli Zaretskii , emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Jan 29 14:13:41 2010 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Naqer-0006BN-0i for ged-emacs-devel@m.gmane.org; Fri, 29 Jan 2010 14:13:40 +0100 Original-Received: from localhost ([127.0.0.1]:44534 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Naqej-0000mp-NM for ged-emacs-devel@m.gmane.org; Fri, 29 Jan 2010 08:13:01 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Naqcw-0008T8-GF for emacs-devel@gnu.org; Fri, 29 Jan 2010 08:11:10 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Naqcs-0008Rg-TE for emacs-devel@gnu.org; Fri, 29 Jan 2010 08:11:10 -0500 Original-Received: from [199.232.76.173] (port=45298 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Naqcs-0008Rc-Ob for emacs-devel@gnu.org; Fri, 29 Jan 2010 08:11:06 -0500 Original-Received: from colin.muc.de ([193.149.48.1]:3297 helo=mail.muc.de) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Naqcr-00034X-Bn for emacs-devel@gnu.org; Fri, 29 Jan 2010 08:11:05 -0500 Original-Received: (qmail 3211 invoked by uid 3782); 29 Jan 2010 13:11:02 -0000 Original-Received: from acm.muc.de (pD9E226D3.dip.t-dialin.net [217.226.38.211]) by colin2.muc.de (tmda-ofmipd) with ESMTP; Fri, 29 Jan 2010 14:11:01 +0100 Original-Received: (qmail 5308 invoked by uid 1000); 29 Jan 2010 13:17:51 -0000 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i X-Delivery-Agent: TMDA/1.1.5 (Fettercairn) X-Primary-Address: acm@muc.de X-detected-operating-system: by monty-python.gnu.org: FreeBSD 4.6-4.9 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:120651 Archived-At: Hi, Stefan, On Thu, Jan 28, 2010 at 02:37:52PM -0500, Stefan Monnier wrote: > > As a zero order approximation, something like > > `before-display-functions', where an element would look like this: > > (defun foo-before-display (buffer beg end) .....) > > , BEG and END defining the piece of BUFFER about to be displayed. The > > hook would be called before fontification. (Is it possible in general > > to determine BEG and END before fontification?). > That's exactly what jit-lock-register offers. jit-lock-register's function only gets called when font lock is enabled, or at least that's what the fine manual says and the doc string implies. Yes, I know, I said "before fontification" too, when I really meant "before redisplay". This is confusing stuff. ;-) > Stefan -- Alan Mackenzie (Nuremberg, Germany).