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: Inaccuracy in Emacs manual. Date: Fri, 7 Feb 2003 17:04:11 -0600 (CST) Sender: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Message-ID: <200302072304.RAA27946@eel.dms.auburn.edu> NNTP-Posting-Host: main.gmane.org X-Trace: main.gmane.org 1044659780 7450 80.91.224.249 (7 Feb 2003 23:16:20 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Fri, 7 Feb 2003 23:16:20 +0000 (UTC) Return-path: Original-Received: from quimby.gnus.org ([80.91.224.244]) by main.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 18hHjH-0001w2-00 for ; Sat, 08 Feb 2003 00:16:19 +0100 Original-Received: from monty-python.gnu.org ([199.232.76.173]) by quimby.gnus.org with esmtp (Exim 3.12 #1 (Debian)) id 18hHt1-0001xk-00 for ; Sat, 08 Feb 2003 00:26:24 +0100 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.10.13) id 18hHgj-0000jf-0C for emacs-devel@quimby.gnus.org; Fri, 07 Feb 2003 18:13:41 -0500 Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.10.13) id 18hHcR-00005k-00 for emacs-devel@gnu.org; Fri, 07 Feb 2003 18:09:15 -0500 Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.10.13) id 18hHbY-000830-00 for emacs-devel@gnu.org; Fri, 07 Feb 2003 18:08:28 -0500 Original-Received: from manatee.dms.auburn.edu ([131.204.53.104]) by monty-python.gnu.org with esmtp (Exim 4.10.13) id 18hHWo-0005vN-00 for emacs-devel@gnu.org; Fri, 07 Feb 2003 18:03:26 -0500 Original-Received: from eel.dms.auburn.edu (eel.dms.auburn.edu [131.204.53.108]) by manatee.dms.auburn.edu (8.9.1a/8.9.1) with ESMTP id RAA11183 for ; Fri, 7 Feb 2003 17:03:25 -0600 (CST) Original-Received: (from teirllm@localhost) by eel.dms.auburn.edu (8.9.3+Sun/8.9.3) id RAA27946; Fri, 7 Feb 2003 17:04:11 -0600 (CST) X-Authentication-Warning: eel.dms.auburn.edu: teirllm set sender to teirllm@dms.auburn.edu using -f Original-To: emacs-devel@gnu.org 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:11494 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:11494 Do C-h m emacs m indentation m just spaces. We see: There are also commands to convert tabs to spaces or vice versa, always preserving the columns of all nonblank text. `M-x tabify' scans the region for sequences of spaces, and converts sequences of at least three spaces to tabs if that can be done without changing indentation. `M-x untabify' changes all tabs in the region to appropriate numbers of spaces. M-x tabify actually converts sequences of at least two (not three as erroneously mentioned above) spaces to tabs. As another current thread shows, this is not meaningless nitpicking. Paste the following into the scratch buffer: (setq aaaa '(? ?a)) Just two spaces after the ? . Put the region around the expression and do M-x tabify. The two spaces are now a tab, changing the car of the list from space to tab. '(? ?a) is safe. Sincerely, Luc.