From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Kevin Rodgers Newsgroups: gmane.emacs.help Subject: Re: Elisp newbie trying a derived mode (clarifying intent) Date: Fri, 29 Sep 2006 10:48:11 -0600 Organization: IHS Message-ID: References: <1159470167.933570.91970@b28g2000cwb.googlegroups.com> <1159494566.323253.174670@m73g2000cwd.googlegroups.com> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: sea.gmane.org 1159548640 9313 80.91.229.2 (29 Sep 2006 16:50:40 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 29 Sep 2006 16:50:40 +0000 (UTC) Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Sep 29 18:50:38 2006 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1GTLZ2-0005Hf-Ne for geh-help-gnu-emacs@m.gmane.org; Fri, 29 Sep 2006 18:50:17 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GTLZ2-00055N-Ce for geh-help-gnu-emacs@m.gmane.org; Fri, 29 Sep 2006 12:50:16 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1GTLYo-00052U-S9 for help-gnu-emacs@gnu.org; Fri, 29 Sep 2006 12:50:02 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1GTLYn-00050c-U3 for help-gnu-emacs@gnu.org; Fri, 29 Sep 2006 12:50:02 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GTLYn-00050L-Q8 for help-gnu-emacs@gnu.org; Fri, 29 Sep 2006 12:50:01 -0400 Original-Received: from [80.91.229.2] (helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA:32) (Exim 4.52) id 1GTLe9-0003WN-42 for help-gnu-emacs@gnu.org; Fri, 29 Sep 2006 12:55:33 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1GTLYQ-00056s-7q for help-gnu-emacs@gnu.org; Fri, 29 Sep 2006 18:49:38 +0200 Original-Received: from 207.167.42.206 ([207.167.42.206]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 29 Sep 2006 18:49:38 +0200 Original-Received: from ihs_4664 by 207.167.42.206 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 29 Sep 2006 18:49:38 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-To: help-gnu-emacs@gnu.org Original-Lines: 54 Original-X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: 207.167.42.206 User-Agent: Thunderbird 1.5.0.7 (Windows/20060909) In-Reply-To: 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-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 Xref: news.gmane.org gmane.emacs.help:37716 Archived-At: Mathias Dahl wrote: > "davex" writes: > >> let me clarify the above--I'd like to make this simple to use >> regularly, hence have a single keystroke call >> dired-do-shell-command, with the correct shell command (to write out >> the filename) hard-coded-- i suppose i could do this as a keyboard >> macro, but if I can do a derived mode in a clean concise way, I >> could apply this skill elsewhere. Am I on the right track? Is a >> derived mode a common useful solution? > > To me it seems overkill to create a new mode for this. Just create > your new defuns and bind a free key to one of them. You can add a hook > to dired mode that binds this key each time dired starts. Definitely. > I have this in my .emacs: > > ;; if dired's already loaded, then the keymap will be bound > (if (boundp 'dired-mode-map) > ;; we're good to go; just add our bindings > (my-dired-init) > ;; it's not loaded yet, so add our bindings to the load-hook > (add-hook 'dired-load-hook 'my-dired-init)) Why not just unconditionally (add-hook 'dired-mode-hook 'my-dired-init)? > `my-dired-init' does a lot of extra stuff I want in dired, like these > bindings, for example: > > ... > (define-key mode-specific-map "xp" 'dired-w32-open-files) > (define-key dired-mode-map [return] 'joc-dired-single-buffer) > ... I generally prefer (local-set-key KEY COMMAND) to (define-key 'some-mode-map KEY COMMAND) For davex's situation, I think the command he wants would be something like: (defun davex-dired-do-shell-command (&optional next-files) "Run the \"davex.exe\" command on the marked files. If no files are marked or a specific numeric prefix arg is given, the next ARG files are used. Just \\[universal-argument] means \ the current file." (interactive "P") (dired-do-shell-command "davex.exe" ; or "davex.exe *" next-files ; prefix arg (dired-get-marked-files t next-files))) -- Kevin