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: Need help writing file-visiting macro Date: Mon, 25 Jul 2005 12:05:10 -0600 Message-ID: References: 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 1122315426 19270 80.91.229.2 (25 Jul 2005 18:17:06 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Mon, 25 Jul 2005 18:17:06 +0000 (UTC) Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon Jul 25 20:17:04 2005 Return-path: Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1Dx7Un-0001ox-C2 for geh-help-gnu-emacs@m.gmane.org; Mon, 25 Jul 2005 20:16:10 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Dx7X4-00082Y-Ap for geh-help-gnu-emacs@m.gmane.org; Mon, 25 Jul 2005 14:18:30 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Dx7Vg-0007LE-K2 for help-gnu-emacs@gnu.org; Mon, 25 Jul 2005 14:17:05 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Dx7VV-0007Gc-O2 for help-gnu-emacs@gnu.org; Mon, 25 Jul 2005 14:17:01 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Dx7VS-00079B-Od for help-gnu-emacs@gnu.org; Mon, 25 Jul 2005 14:16:51 -0400 Original-Received: from [80.91.229.2] (helo=ciao.gmane.org) by monty-python.gnu.org with esmtp (TLS-1.0:RSA_AES_128_CBC_SHA:16) (Exim 4.34) id 1Dx7Vw-0006Jo-E4 for help-gnu-emacs@gnu.org; Mon, 25 Jul 2005 14:17:20 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1Dx7Kp-0000Vc-GJ for help-gnu-emacs@gnu.org; Mon, 25 Jul 2005 20:05:51 +0200 Original-Received: from 207.167.42.60 ([207.167.42.60]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 25 Jul 2005 20:05:51 +0200 Original-Received: from ihs_4664 by 207.167.42.60 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 25 Jul 2005 20:05:51 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-To: help-gnu-emacs@gnu.org Original-Lines: 21 Original-X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: 207.167.42.60 User-Agent: Mozilla Thunderbird 0.9 (X11/20041105) X-Accept-Language: en-us, en 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:28174 X-Report-Spam: http://spam.gmane.org/gmane.emacs.help:28174 Roy Smith wrote: > I'm working in a software development system which has classes defined > in foo.mdl files, with the corresponding implementation code in > foo_Impl.c files I want to write a macro or function which lets you > flip back and forth between the two. If I'm looking at a .mdl file, I > want it to construct the corresponding _Impl.c filename and visit that > file. Is that possible? Of course. (defun find-impl-file (&optional mdl-file) "When visiting a \".mdl\", visit the corresponding \"_Impl.c\" file." (interactive) (when (null mdl-file) (setq mdl-file buffer-file-name)) (unless (and mdl-file (equal (file-name-extension mdl-file) "mdl")) (error "%s is not a \".mdl\" file" mdl-file)) (find-file (concat (file-name-sans-extension mdl-file) "_Impl.c"))) -- Kevin Rodgers