From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eric Abrahamsen Newsgroups: gmane.emacs.devel Subject: catching keyboard-quit from read-char Date: Wed, 25 Jul 2018 15:11:04 -0700 Message-ID: <877eljj79j.fsf@ericabrahamsen.net> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1532556565 31003 195.159.176.226 (25 Jul 2018 22:09:25 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 25 Jul 2018 22:09:25 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Jul 26 00:09:21 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fiRyC-0007z7-Rb for ged-emacs-devel@m.gmane.org; Thu, 26 Jul 2018 00:09:20 +0200 Original-Received: from localhost ([::1]:56360 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fiS0J-0004i4-Lf for ged-emacs-devel@m.gmane.org; Wed, 25 Jul 2018 18:11:31 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:50112) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fiS0B-0004hy-7r for emacs-devel@gnu.org; Wed, 25 Jul 2018 18:11:26 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fiS08-0002AW-6A for emacs-devel@gnu.org; Wed, 25 Jul 2018 18:11:23 -0400 Original-Received: from [195.159.176.226] (port=50751 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fiS07-0002AS-UT for emacs-devel@gnu.org; Wed, 25 Jul 2018 18:11:20 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1fiRxw-0007ju-5v for emacs-devel@gnu.org; Thu, 26 Jul 2018 00:09:04 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 23 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:/mdCPyWgKl/Oxt2BEwMUuyqutts= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:227818 Archived-At: I thought this used to work, but maybe I'm imagining things... I've got a macro for prompting the user for a value, but catching a couple of signals and returning nil in those cases. It looks like: (defmacro ebdb-with-exit (&rest body) "Execute BODY, returning nil on quit or an empty value." `(condition-case-unless-debug nil ,@body ((quit ebdb-empty) nil))) It works for `read-string', but not `read-char': (ebdb-with-exit (read-string "String: ")) ; C-g returns nil (ebdb-with-exit (read-char "Character: ")) ; C-g raises an error I thought this used to work, but maybe I'm mis-remembering. Is there anything I can do to get this to behave the way I want it to? (Ie, returning nil). Thanks, Eric