From: Kevin Rodgers <kevin.d.rodgers@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: Setting truncate-lines based on file type (extension)
Date: Thu, 01 Oct 2009 06:11:33 -0600 [thread overview]
Message-ID: <ha269j$fbh$1@ger.gmane.org> (raw)
In-Reply-To: <041b1f7f-5c7f-4753-ac0b-f179ccbcbfe6@o9g2000prg.googlegroups.com>
amicitas wrote:
> On Sep 29, 11:00 pm, Kevin Rodgers <kevin.d.rodg...@gmail.com> 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
prev parent reply other threads:[~2009-10-01 12:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-28 20:11 Setting truncate-lines based on file type (extension) amicitas
2009-09-30 6:00 ` Kevin Rodgers
[not found] ` <mailman.7740.1254290461.2239.help-gnu-emacs@gnu.org>
2009-09-30 13:51 ` John A Pershing Jr
2009-09-30 20:09 ` amicitas
2009-10-01 12:11 ` Kevin Rodgers [this message]
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