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: Setting truncate-lines based on file type (extension) Date: Thu, 01 Oct 2009 06:11:33 -0600 Message-ID: References: <1f1c52b2-58c2-4674-98b0-836acf647b33@v25g2000yqk.googlegroups.com> <041b1f7f-5c7f-4753-ac0b-f179ccbcbfe6@o9g2000prg.googlegroups.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1254401700 24555 80.91.229.12 (1 Oct 2009 12:55:00 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 1 Oct 2009 12:55:00 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Oct 01 14:54:54 2009 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1MtLBH-0005jU-6W for geh-help-gnu-emacs@m.gmane.org; Thu, 01 Oct 2009 14:54:52 +0200 Original-Received: from localhost ([127.0.0.1]:33665 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MtLB7-0002DE-Tp for geh-help-gnu-emacs@m.gmane.org; Thu, 01 Oct 2009 08:54:37 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MtKW1-0006Kn-Qb for help-gnu-emacs@gnu.org; Thu, 01 Oct 2009 08:12:09 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MtKVw-0006KQ-2O for help-gnu-emacs@gnu.org; Thu, 01 Oct 2009 08:12:08 -0400 Original-Received: from [199.232.76.173] (port=50730 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MtKVv-0006KN-Ug for help-gnu-emacs@gnu.org; Thu, 01 Oct 2009 08:12:03 -0400 Original-Received: from mx20.gnu.org ([199.232.41.8]:44348) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1MtKVv-0007OR-Ih for help-gnu-emacs@gnu.org; Thu, 01 Oct 2009 08:12:03 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MtKVu-0000mx-AG for help-gnu-emacs@gnu.org; Thu, 01 Oct 2009 08:12:02 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.50) id 1MtKVr-0001hb-GJ for help-gnu-emacs@gnu.org; Thu, 01 Oct 2009 14:11:59 +0200 Original-Received: from c-71-237-24-138.hsd1.co.comcast.net ([71.237.24.138]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 01 Oct 2009 14:11:59 +0200 Original-Received: from kevin.d.rodgers by c-71-237-24-138.hsd1.co.comcast.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 01 Oct 2009 14:11:59 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 36 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: c-71-237-24-138.hsd1.co.comcast.net User-Agent: Thunderbird 2.0.0.23 (Macintosh/20090812) In-Reply-To: <041b1f7f-5c7f-4753-ac0b-f179ccbcbfe6@o9g2000prg.googlegroups.com> X-detected-operating-system: by mx20.gnu.org: GNU/Linux 2.6 (newer, 3) X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) 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:68598 Archived-At: amicitas wrote: > On Sep 29, 11:00 pm, Kevin Rodgers wrote: >> amicitas wrote: >>> For certain types of files I want to set truncate-lines to true. I >>> would like to be able to specify these files based on the file >>> extension. While I know how to set the mode, but how would I go about >>> changing settings? >> (defun my-set-truncate-lines () >> "Set `truncate-lines' to t when visiting a file whose extension is >> \"ext1\", \"ext2\", or \"ext3\"." >> (when (member (file-name-extension buffer-file-name) >> '("ext1" "ext2" "ext3")) >> (setq truncate-lines t)) >> ;; return value for find-file-not-found-hooks: >> nil) >> >> (add-hook 'find-file-hook 'my-set-truncate-lines) >> (add-hook 'find-file-not-found-functions 'my-set-truncate-lines) > > Thank you Kevin. That is precisely what I was looking for. > > In my case I am using this to make viewing of certain types of data > and calibration files easier. These files should be opened in 'text- > mode', except with out wrapping. Setting a mode hook is therefore not > appropriate. This seems like a better solution that creating (or > finding) a 'data-mode'. I don't know: define-derived-mode makes it very easy to define your data-mode, which would set truncate-lines directly. Alternatively, there's no reason not to put the hook function on text-mode-hook instead of find-file-hook and find-file-not-found-functions. -- Kevin Rodgers Denver, Colorado, USA