From mboxrd@z Thu Jan  1 00:00:00 1970
Path: main.gmane.org!not-for-mail
From: John Paul Wallington <jpw@gnu.org>
Newsgroups: gmane.emacs.help
Subject: Re: 2-key prefix and Invalid Prefix keys in sequence
Date: Sun, 6 Mar 2005 02:45:03 +0000
Message-ID: <20050306024503.GA11257@sol.shootybangbang.com>
References: <112iadoa88vv7bc@news.supernews.com>
NNTP-Posting-Host: main.gmane.org
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Trace: sea.gmane.org 1110077068 27614 80.91.229.2 (6 Mar 2005 02:44:28 GMT)
X-Complaints-To: usenet@sea.gmane.org
NNTP-Posting-Date: Sun, 6 Mar 2005 02:44:28 +0000 (UTC)
Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Mar 06 03:44:27 2005
Original-Received: from lists.gnu.org ([199.232.76.165])
	by ciao.gmane.org with esmtp (Exim 4.43)
	id 1D7lkc-0006gb-Ih
	for geh-help-gnu-emacs@m.gmane.org; Sun, 06 Mar 2005 03:44:15 +0100
Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43)
	id 1D7m46-0002cp-Fm
	for geh-help-gnu-emacs@m.gmane.org; Sat, 05 Mar 2005 22:04:22 -0500
Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1D7m37-0002CK-Ok
	for help-gnu-emacs@gnu.org; Sat, 05 Mar 2005 22:03:21 -0500
Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1D7m31-000290-Ue
	for help-gnu-emacs@gnu.org; Sat, 05 Mar 2005 22:03:16 -0500
Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1D7m31-00028N-RM
	for help-gnu-emacs@gnu.org; Sat, 05 Mar 2005 22:03:15 -0500
Original-Received: from [82.108.132.252] (helo=sol.shootybangbang.com)
	by monty-python.gnu.org with esmtp (Exim 4.34) id 1D7llS-0000CW-5v
	for help-gnu-emacs@gnu.org; Sat, 05 Mar 2005 21:45:06 -0500
Original-Received: by sol.shootybangbang.com (Postfix, from userid 1000)
	id BE4232B1; Sun,  6 Mar 2005 02:45:03 +0000 (GMT)
Original-To: help-gnu-emacs@gnu.org
Content-Disposition: inline
In-Reply-To: <112iadoa88vv7bc@news.supernews.com>
X-Face: R(_z-<e!Z,qjN8xeu/^:Szs}15R'D_9}g7Qlm0x+2sF<`w9o]-oT>rF:grdKO.*u`n);
	p.i$Eiz=h^CO5eDYv"4:K@#\HN09*Ykx}}B{kF/KH}%f_o^Wp<kb`,1KLtZp"^C{-{e~S=IP0_"8B6K+CkbKw='FSzftzu
User-Agent: Mutt/1.5.8i
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 <help-gnu-emacs.gnu.org>
List-Unsubscribe: <http://lists.gnu.org/mailman/listinfo/help-gnu-emacs>,
	<mailto:help-gnu-emacs-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/help-gnu-emacs>
List-Post: <mailto:help-gnu-emacs@gnu.org>
List-Help: <mailto:help-gnu-emacs-request@gnu.org?subject=help>
List-Subscribe: <http://lists.gnu.org/mailman/listinfo/help-gnu-emacs>,
	<mailto:help-gnu-emacs-request@gnu.org?subject=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
X-MailScanner-To: geh-help-gnu-emacs@m.gmane.org
Xref: main.gmane.org gmane.emacs.help:24548
X-Report-Spam: http://spam.gmane.org/gmane.emacs.help:24548

Tim Johnson wrote:

> I'd like to map out a series of 3-key commands, with
> control-c control-; as the prefix.
> Initially I am attempting the following:
> (global-set-key [(control \c\;) (b)] 'isearch-forward)
> ;; evaluation gives me the "Invalid Prefix Keys in sequence"
> ;; error message

How about:

(defvar foo-map (make-sparse-keymap)
  "Foo keymap.")
(define-prefix-command 'foo-map)
(global-set-key [(control c) (control \;)] 'foo-map)
(define-key foo-map "b" 'isearch-forward)

[FWIW, C-; may not be a good choice because many terminals won't pass
it to Emacs -- on my main desktop machine at home the Linux console
ignores C-; and the xterm program passes on a bare semi-colon]

The section on Keymaps in the elisp info manual talks about defining
Prefix Keymaps.  Perhaps the emacs info manual should too.