From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: M-x call with optional arg; call from Elisp Date: Mon, 27 May 2013 18:03:55 +0200 Organization: Aioe.org NNTP Server Message-ID: <87hahobeac.fsf@VLAN-3434.student.uu.se> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1369674439 18072 80.91.229.3 (27 May 2013 17:07:19 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 27 May 2013 17:07:19 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon May 27 19:07:22 2013 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Uh0tF-00014s-Pd for geh-help-gnu-emacs@m.gmane.org; Mon, 27 May 2013 19:07:21 +0200 Original-Received: from localhost ([::1]:40965 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uh0tF-0001k1-A6 for geh-help-gnu-emacs@m.gmane.org; Mon, 27 May 2013 13:07:21 -0400 Original-Path: usenet.stanford.edu!goblin3!goblin2!goblin.stu.neva.ru!aioe.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 34 Original-NNTP-Posting-Host: SWN/nubmpQxYKwY7hPy4YA.user.speranza.aioe.org Original-X-Complaints-To: abuse@aioe.org User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.4 (gnu/linux) X-Notice: Filtered by postfilter v. 0.8.2 Cancel-Lock: sha1:JPyxB3nubP8n/Hzn70IxPUpxQ/w= Original-Xref: usenet.stanford.edu gnu.emacs.help:198825 X-Mailman-Approved-At: Mon, 27 May 2013 13:07:00 -0400 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:91090 Archived-At: Take a look at the below code, and you'll understand immediately what I ask. 1. How can I call a function with M-x and provide an optional string arg? 2. Why do I get 0 when I call from Elisp? (Is it the return code - $? - and not the output?) I tried with eval and funcall as well: same. How do I call from Elisp? ;;; word count (defun words (&optional opts) "Count buffer words with wc OPTS, or wc -w if not OPTS is given." (interactive) (defvar count-cmd) (setq count-cmd (format "wc %s" (if (stringp opts) opts "-w"))) (if mark-active (shell-command-on-region (region-beginning) (region-end) count-cmd) (shell-command-on-region (point-min) (point-max) count-cmd) )) (words "-l") ; doesn't work (0) - can I call this with M-x and an arg? (words) ; same, but `M-x words' works (defun count-buffer-wc-option (option) (interactive "s wc options: ") "Count buffer according to wc OPTION." (shell-command-on-region (point-min) (point-max) (format "wc %s" option)) ) (count-buffer-wc-option "-l") ; same, but ; `M-x count-... RET -l' works -- Emanuel Berg - programmer (hire me! CV below) computer projects: http://user.it.uu.se/~embe8573 internet activity: http://home.student.uu.se/embe8573