From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Drew Adams" Newsgroups: gmane.emacs.help,gmane.emacs.bugs Subject: RE: C-u C-space Date: Wed, 9 May 2007 15:54:37 -0700 Message-ID: References: <8687164.77511178750736564.JavaMail.www@wwinf4201> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Trace: sea.gmane.org 1178751373 10836 80.91.229.12 (9 May 2007 22:56:13 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 9 May 2007 22:56:13 +0000 (UTC) Cc: "Emacs Bug \[bug-gnu-emacs\]" To: , "Emacs Help [help-gnu-emacs]" Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu May 10 00:56:12 2007 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1Hlv4q-00085T-U2 for geh-help-gnu-emacs@m.gmane.org; Thu, 10 May 2007 00:56:09 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HlvC5-0005zH-K7 for geh-help-gnu-emacs@m.gmane.org; Wed, 09 May 2007 19:03:37 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1HlvBn-0005sq-Ew for help-gnu-emacs@gnu.org; Wed, 09 May 2007 19:03:19 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1HlvBl-0005pV-Jq for help-gnu-emacs@gnu.org; Wed, 09 May 2007 19:03:18 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HlvBl-0005pG-Dj; Wed, 09 May 2007 19:03:17 -0400 Original-Received: from rgminet01.oracle.com ([148.87.113.118]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Hlv4V-0006AQ-MU; Wed, 09 May 2007 18:55:47 -0400 Original-Received: from rgmgw2.us.oracle.com (rgmgw2.us.oracle.com [138.1.186.111]) by rgminet01.oracle.com (Switch-3.2.4/Switch-3.1.6) with ESMTP id l49Mthsd016360; Wed, 9 May 2007 16:55:43 -0600 Original-Received: from acsmt350.oracle.com (acsmt350.oracle.com [141.146.40.150]) by rgmgw2.us.oracle.com (Switch-3.2.4/Switch-3.1.7) with ESMTP id l49MVeYG027968; Wed, 9 May 2007 16:55:42 -0600 Original-Received: from dhcp-4op11-4op12-west-130-35-178-179.us.oracle.com by acsmt351.oracle.com with ESMTP id 2685488911178751279; Wed, 09 May 2007 15:54:39 -0700 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) In-Reply-To: <8687164.77511178750736564.JavaMail.www@wwinf4201> Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Whitelist: TRUE X-Whitelist: TRUE X-Brightmail-Tracker: AAAAAQAAAAI= X-detected-kernel: Linux 2.4-2.6 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:43851 gmane.emacs.bugs:15704 Archived-At: > Now I am trying to find out what command is associated with C-u=20 > C-space. I do C-h k C-u . >=20 > It appears <> . I did=20 > not arrive to press C-space. >=20 > Is it a bug? Or I used wrong describe-key ? It is not a bug. It is the way Emacs works. You need to read the Emacs = manual section on C-u (prefix argument).=20 Once you understand that, you'll understand that you need only do C-h = C-SPC. That will give you an explanation of the command bound to C-SPC, = `set-mark-command', and that explanation will tell you what `C-u' means = in that context: C-SPC runs the command set-mark-command ... With argument, e.g. C-u C-@, jump to mark, and pop a new position for mark off the local mark ring... With a double C-u prefix argument, e.g. C-u C-u C-@, unconditionally set mark where point is. IOW, C-u has different meanings and behaviors, depending on what key = sequence follows it. Use C-h on the base key sequence to find out about = its behavior when it is modified by C-u.