From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Deniz Dogan Newsgroups: gmane.emacs.devel Subject: Re: C-x a C-x C-h Date: Thu, 27 Aug 2009 00:38:18 +0200 Message-ID: <7b501d5c0908261538j6e59a1e3x28952953d1e919f7@mail.gmail.com> References: <7b501d5c0908261431x5de2fb0sa4946779dd37658e@mail.gmail.com> <7b501d5c0908261521j1fb6a5bct3d08704380145343@mail.gmail.com> <7F3F9448431C4790BB7404830406A33F@us.oracle.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1251326336 17337 80.91.229.12 (26 Aug 2009 22:38:56 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 26 Aug 2009 22:38:56 +0000 (UTC) Cc: Emacs-Devel devel To: Drew Adams Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Aug 27 00:38:49 2009 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1MgR8i-0003NZ-6s for ged-emacs-devel@m.gmane.org; Thu, 27 Aug 2009 00:38:48 +0200 Original-Received: from localhost ([127.0.0.1]:51560 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MgR8h-00049D-Ik for ged-emacs-devel@m.gmane.org; Wed, 26 Aug 2009 18:38:47 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MgR8G-0003dW-BR for emacs-devel@gnu.org; Wed, 26 Aug 2009 18:38:20 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MgR8F-0003dC-TR for emacs-devel@gnu.org; Wed, 26 Aug 2009 18:38:19 -0400 Original-Received: from [199.232.76.173] (port=40394 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MgR8F-0003d7-HC for emacs-devel@gnu.org; Wed, 26 Aug 2009 18:38:19 -0400 Original-Received: from ey-out-1920.google.com ([74.125.78.146]:7325) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MgR8F-0003HT-42 for emacs-devel@gnu.org; Wed, 26 Aug 2009 18:38:19 -0400 Original-Received: by ey-out-1920.google.com with SMTP id 3so144531eyh.34 for ; Wed, 26 Aug 2009 15:38:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=V/+V+sfZzTn4NQBoumm8baRR0HVp8+feKW0AowALlBE=; b=VBQ3RRLyxzAPNrRuRC4PX+eDB/wGWGDI6MNtgc4m4dIQ6r2nVxX6yvsPWWv4YaQ5hK FJG7ZQHqFNDm9+czhUt7L79cVWOHo2JS+jmpbVJLtebTly9yVGYyMQdp1pMrJZb1C+kW f+aXlYMQu8WFNMz86u6yk9cPQgNwM6bc9rtnU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=t59RdvNvKBFjKafklyIwx92/SVtq1H4+4D3j/azLtepUO3BWh8R5Xshh0vWexkpvKC WadESit54TRR4Rxp27S+oJ6+OFWN55sTWaQBiO1nHJJwQhLJPkaxst3qjURAOqTpCq6r xRzWs5HimY3/rrPEEs6RvDMzBhHbcCcxwHPQg= Original-Received: by 10.210.79.18 with SMTP id c18mr8531120ebb.87.1251326298392; Wed, 26 Aug 2009 15:38:18 -0700 (PDT) In-Reply-To: <7F3F9448431C4790BB7404830406A33F@us.oracle.com> X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 2) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:114645 Archived-At: 2009/8/27 Drew Adams : >> >> When I hit `C-x a C-x' in the latest Emacs, it awaits >> further input, >> >> as if it was a prefix key sequence. However, `C-x a C-x >> C-h' reveals >> >> that there are no commands bound to anything beginning with that >> >> prefix. Why? >> > >> > Good question. I wonder too. Same thing in Emacs 22, 21, and 20. >> > And C-x C-x C-x C-x C-x ... just keeps on keepin on. >> >> That doesn't happen here, it only gets to `C-x a C-x C-x', after which >> any further keypresses will say the sequence undefined. > > I wasn't quite right. > > On Emacs 20 and 21, you can just keep repeating C-x forever, with no apparent > effect. > > On Emac 22 and 23, it seems that C-x a C-x C-x C-x calls > `exchange-point-and-mark', and every other `C-x' after that calls it again. So > here too I can keep repeating C-x C-x..., but each such pair invokes > `exchange-point-and-mark'. > You're right, I tried it without having set mark. It wasn't undefined here. -- Deniz Dogan