From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#12872: 24.2; Provide a feature to trigger mode-line redisplay Date: Tue, 13 Nov 2012 05:57:59 +0200 Message-ID: <83vcdaupbs.fsf@gnu.org> References: <837gpqwuai.fsf@gnu.org> <831ufywqnh.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1352779123 24779 80.91.229.3 (13 Nov 2012 03:58:43 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 13 Nov 2012 03:58:43 +0000 (UTC) Cc: 12872@debbugs.gnu.org To: Drew Adams Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Nov 13 04:58:54 2012 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1TY7eG-0000Uu-JI for geb-bug-gnu-emacs@m.gmane.org; Tue, 13 Nov 2012 04:58:52 +0100 Original-Received: from localhost ([::1]:56857 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TY7e6-0004iz-VL for geb-bug-gnu-emacs@m.gmane.org; Mon, 12 Nov 2012 22:58:42 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:38671) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TY7e2-0004hn-Cv for bug-gnu-emacs@gnu.org; Mon, 12 Nov 2012 22:58:41 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TY7dz-0005Vy-9p for bug-gnu-emacs@gnu.org; Mon, 12 Nov 2012 22:58:38 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:54815) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TY7dz-0005Vt-6e for bug-gnu-emacs@gnu.org; Mon, 12 Nov 2012 22:58:35 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1TY7eQ-000096-63 for bug-gnu-emacs@gnu.org; Mon, 12 Nov 2012 22:59:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 13 Nov 2012 03:59:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 12872 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 12872-submit@debbugs.gnu.org id=B12872.1352779096501 (code B ref 12872); Tue, 13 Nov 2012 03:59:02 +0000 Original-Received: (at 12872) by debbugs.gnu.org; 13 Nov 2012 03:58:16 +0000 Original-Received: from localhost ([127.0.0.1]:36833 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TY7dg-000081-G8 for submit@debbugs.gnu.org; Mon, 12 Nov 2012 22:58:16 -0500 Original-Received: from mtaout21.012.net.il ([80.179.55.169]:41691) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TY7dc-00007r-KS for 12872@debbugs.gnu.org; Mon, 12 Nov 2012 22:58:14 -0500 Original-Received: from conversion-daemon.a-mtaout21.012.net.il by a-mtaout21.012.net.il (HyperSendmail v2007.08) id <0MDE00000QXUPZ00@a-mtaout21.012.net.il> for 12872@debbugs.gnu.org; Tue, 13 Nov 2012 05:57:43 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout21.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MDE0005UR06P420@a-mtaout21.012.net.il>; Tue, 13 Nov 2012 05:57:43 +0200 (IST) In-reply-to: X-012-Sender: halo1@inter.net.il X-Spam-Score: 1.5 (+) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-Spam-Score: 1.5 (+) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:66847 Archived-At: > From: "Drew Adams" > Cc: <12872@debbugs.gnu.org> > Date: Mon, 12 Nov 2012 14:17:38 -0800 > > I wonder (without being very familiar with the mode-line %-constructs, so maybe > speaking nonsense) whether it might be useful to add specific %-constructs (or > variables?) that say when (i.e., in what contexts) to trigger mode-line > redisplay. What would be the advantages of such a feature? Since the mode line format is not even consulted in order to decide whether or not to redisplay the mode line (because its processing is very non-trivial, what with all the propertize stuff and Lisp expressions going on there even in the standard value), we will need internal variables to shadow these constructs anyway. Having variables or maybe a plist of the mode line format allows easier access to this information, and is IMO more Lispy than hiding the information in some % magic.