From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#16526: 24.3.50; scroll-conservatively & c-mode regression Date: Sat, 05 Jul 2014 19:06:15 -0400 Message-ID: References: <53B02042.1050107@gmx.at> <20140629144151.GD2948@acm.acm> <53B03876.9070307@gmx.at> <20140629174953.GE2948@acm.acm> <53B117D6.1050306@gmx.at> <20140702200522.GB3823@acm.acm> <20140704182709.GA3535@acm.acm> <20140705202534.GA3449@acm.acm> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1404601657 4896 80.91.229.3 (5 Jul 2014 23:07:37 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 5 Jul 2014 23:07:37 +0000 (UTC) Cc: 16526@debbugs.gnu.org To: Alan Mackenzie Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jul 06 01:07:30 2014 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 1X3Z3K-00054c-7H for geb-bug-gnu-emacs@m.gmane.org; Sun, 06 Jul 2014 01:07:30 +0200 Original-Received: from localhost ([::1]:44176 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X3Z3J-0003MF-Mv for geb-bug-gnu-emacs@m.gmane.org; Sat, 05 Jul 2014 19:07:29 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37775) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X3Z39-0003Lv-Aj for bug-gnu-emacs@gnu.org; Sat, 05 Jul 2014 19:07:26 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X3Z31-0003Hv-RU for bug-gnu-emacs@gnu.org; Sat, 05 Jul 2014 19:07:19 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:53245) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X3Z2s-00031Y-CI; Sat, 05 Jul 2014 19:07:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1X3Z2s-0003vB-3p; Sat, 05 Jul 2014 19:07:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org, bug-cc-mode@gnu.org Resent-Date: Sat, 05 Jul 2014 23:07:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 16526 X-GNU-PR-Package: emacs,cc-mode X-GNU-PR-Keywords: Original-Received: via spool by 16526-submit@debbugs.gnu.org id=B16526.140460158415014 (code B ref 16526); Sat, 05 Jul 2014 23:07:02 +0000 Original-Received: (at 16526) by debbugs.gnu.org; 5 Jul 2014 23:06:24 +0000 Original-Received: from localhost ([127.0.0.1]:44395 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1X3Z2F-0003u6-8R for submit@debbugs.gnu.org; Sat, 05 Jul 2014 19:06:23 -0400 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.181]:63894) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1X3Z2D-0003tp-8l for 16526@debbugs.gnu.org; Sat, 05 Jul 2014 19:06:21 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArYGAIDvNVNLd+D9/2dsb2JhbABZgwaDSr0vgw6BFxd0giUBAQEBAgFWIwULCw4mEhQYDSSIBAjSGReOegeEOASpGYFqg0wh X-IPAS-Result: ArYGAIDvNVNLd+D9/2dsb2JhbABZgwaDSr0vgw6BFxd0giUBAQEBAgFWIwULCw4mEhQYDSSIBAjSGReOegeEOASpGYFqg0wh X-IronPort-AV: E=Sophos;i="4.97,753,1389762000"; d="scan'208";a="76505324" Original-Received: from 75-119-224-253.dsl.teksavvy.com (HELO pastel.home) ([75.119.224.253]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 05 Jul 2014 19:06:15 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id 5636966F86; Sat, 5 Jul 2014 19:06:15 -0400 (EDT) In-Reply-To: <20140705202534.GA3449@acm.acm> (Alan Mackenzie's message of "Sat, 5 Jul 2014 20:25:34 +0000") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.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:91226 Archived-At: > from point-min. When I optimised c-parse-state a few years back, I was > under the impression that a backwards scan-lists wasn't much more > expensive than a forwards one. Often, this is not true. Indeed. Programming language syntax is designed to be parsed forward, so parsing it backward can sometimes be surprisingly difficult. > about adjusting c-parse-state again. It surely wouldn't hurt for the > documentation of open-paren-etc and scan-lists to be a bit more > forthcoming about backwards scan-listses and what the variable _really_ > does. I think open-paren-in-column-0-is-defun-start is on the way out, FWIW. `syntax-ppss' makes is largely irrelevant. Stefan