From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Luc Teirlinck Newsgroups: gmane.emacs.devel Subject: Re: Various simple.el patches Date: Fri, 23 May 2003 13:47:38 -0500 (CDT) Sender: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Message-ID: <200305231847.h4NIlcf11760@eel.dms.auburn.edu> References: <200305132031.h4DKVp58013718@rum.cs.yale.edu> <84llx9hhwp.fsf@lucy.is.informatik.uni-duisburg.de> <20030514124245.GA24487@gnu.org> <843cjhtytp.fsf@lucy.is.informatik.uni-duisburg.de> <20030514144839.GA6241@gnu.org> <844r3xr0ar.fsf@lucy.is.informatik.uni-duisburg.de> <84fznfzb9t.fsf@lucy.is.informatik.uni-duisburg.de> <84k7co464e.fsf@lucy.is.informatik.uni-duisburg.de> <200305210312.h4L3C4907897@eel.dms.auburn.edu> <200305220252.h4M2q9W10068@eel.dms.auburn.edu> <841xyqywtm.fsf@lucy.is.informatik.uni-duisburg.de> NNTP-Posting-Host: main.gmane.org X-Trace: main.gmane.org 1053716191 30257 80.91.224.249 (23 May 2003 18:56:31 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Fri, 23 May 2003 18:56:31 +0000 (UTC) Cc: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Fri May 23 20:56:27 2003 Return-path: Original-Received: from quimby.gnus.org ([80.91.224.244]) by main.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 19JHiN-0007ri-00 for ; Fri, 23 May 2003 20:56:27 +0200 Original-Received: from monty-python.gnu.org ([199.232.76.173]) by quimby.gnus.org with esmtp (Exim 3.12 #1 (Debian)) id 19JHuF-0005Yp-00 for ; Fri, 23 May 2003 21:08:43 +0200 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.20) id 19JHjj-00050w-Jg for emacs-devel@quimby.gnus.org; Fri, 23 May 2003 14:57:51 -0400 Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.20) id 19JHdW-0003BI-1g for emacs-devel@gnu.org; Fri, 23 May 2003 14:51:26 -0400 Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.20) id 19JHdB-0002wQ-Id for emacs-devel@gnu.org; Fri, 23 May 2003 14:51:06 -0400 Original-Received: from manatee.dms.auburn.edu ([131.204.53.104]) by monty-python.gnu.org with esmtp (Exim 4.20) id 19JHZp-0000so-Nc for emacs-devel@gnu.org; Fri, 23 May 2003 14:47:37 -0400 Original-Received: from eel.dms.auburn.edu (eel.dms.auburn.edu [131.204.53.108]) h4NIlZoc015069; Fri, 23 May 2003 13:47:35 -0500 (CDT) Original-Received: (from teirllm@localhost) by eel.dms.auburn.edu (8.11.6+Sun/8.11.6) id h4NIlcf11760; Fri, 23 May 2003 13:47:38 -0500 (CDT) X-Authentication-Warning: eel.dms.auburn.edu: teirllm set sender to teirllm@dms.auburn.edu using -f Original-To: kai.grossjohann@gmx.net In-reply-to: <841xyqywtm.fsf@lucy.is.informatik.uni-duisburg.de> (kai.grossjohann@gmx.net) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1b5 Precedence: list List-Id: Emacs development discussions. List-Help: List-Post: List-Subscribe: , List-Archive: List-Unsubscribe: , Errors-To: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Xref: main.gmane.org gmane.emacs.devel:14145 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:14145 Kai Grossjohan wrote: (Minor question: are the save-excursions necessary? I don't know if it is desirable to try to minimize them.) To be more precise than in my previous answer: The documentation string of save-excursion says: Save point, mark, and current buffer; execute BODY; restore those things. In our situation, we only need to save and restore the value of point. I have often seen save-excursion used in such situations. One could use the obvious: (let ((opoint (point))) ... (goto-char opoint)) I doubt the gain in efficiency would be measurable to any degree, but it certainly would be easy to change the code to use the above let forms instead of save-excursion. Sincerely, Luc.