From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: How to setup default program to launch directory? Date: Sun, 17 Oct 2021 08:32:47 +0300 Message-ID: References: <87tuhkv4qo.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="38586"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.0.7+183 (3d24855) (2021-05-28) Cc: help-gnu-emacs@gnu.org To: Michael Heerdegen Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Oct 17 07:34:10 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mbyoE-0009o0-LK for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 17 Oct 2021 07:34:10 +0200 Original-Received: from localhost ([::1]:52856 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mbyoC-00060d-NV for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 17 Oct 2021 01:34:08 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:50134) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mbynh-00060N-TJ for help-gnu-emacs@gnu.org; Sun, 17 Oct 2021 01:33:37 -0400 Original-Received: from stw1.rcdrun.com ([217.170.207.13]:44721) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mbyng-0005fy-64 for help-gnu-emacs@gnu.org; Sun, 17 Oct 2021 01:33:37 -0400 Original-Received: from localhost ([::ffff:41.75.191.219]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 0000000000065D98.00000000616BB5AB.00000F80; Sat, 16 Oct 2021 22:33:29 -0700 Mail-Followup-To: Michael Heerdegen , help-gnu-emacs@gnu.org Content-Disposition: inline In-Reply-To: <87tuhkv4qo.fsf@web.de> Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:133819 Archived-At: * Michael Heerdegen [2021-10-14 03:19]: > Jean Louis writes: > > > I would like to launch programs on directories, is there any way to > > set it up by default? This is also useful to launch videos on > > directory. > > In each entry (REGEXP COMMAND...) in `dired-guess-shell-alist-user', > COMMAND > > | can either be a string or a Lisp expression that evaluates to a > | string. If this expression needs to consult the name of the file for > | which the shell commands are being requested, it can access that file > | name as the variable `file'. > > (quoting from the docstring). This is what you want to use. Use a > catchall REGEXP and make COMMAND an expression that returns something > for directories, and nil else. AFAICT COMMAND is also allowed to return > a list of strings. > > I made it so that the expression also looks inside the directory, and > when it's full of images or media files, I return appropriate > viewers. I have made regexp to be: . and expression to be "(rcd-open-dir file)" Though I find it not logical to have to put Lisp expression in quotes. And I am trying to use this one. (defun rcd-open-dir (file) "vlc") but it says "exited abnormally" and I cannot see error messages. Please show me example how you deal with it. -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/