Re: How to turn off conf-mode

[Sven Joachim]

On 2007-12-12 21:50 +0100, Peter Dyballa wrote:

> Am 12.12.2007 um 07:49 schrieb Robert L Knighten:
>
>> I think the relevant dotted pair in auto-mode-alist is
>>
>>  ("[/.]c\\(?:on\\)?f\\(?:i?g\\)?\\(?:\\.[a-zA-Z0-9._-]+\\)?\\'"
>> . conf-mode)
>>
>
> In my Emacsen .out files are not listed in the set of files for which
> conf-mode should be applied. Or, to be more exact: this is my
> interpretation of the lines and I cannot make .out files open in conf- 
> mode.

It's not the .out extension that puts the files into conf-mode, but
rather the cf _before_ the extension.  Just try "emacs -Q cf" and see
what happens.

> So it's likely that you add something. To find out when it happens
>
>       1.) launch GNU Emacs with --no-init-file and open such a .out file
>
>       2.) launch GNU Emacs with --no-site-file and open such a .out file
>
> In case 1 your personal .emacs or default.el is not loaded, only the
> system's ones.
> In case 2 the system's init file(s) is (are) not loaded, only your
> personal one.
>
> If in case 1 the .out file is opened in conf-mode, then the system's
> init file(s) set(s) it.
> If in case 2 the .out file is opened in conf-mode, then your personal
> init file sets it.
> If in case 1 and in case 2 the .out file is opened in conf-mode, then
> both are polluted and you should launch GNU Emacs with -Q!
>
> If your personal init file sets it, then it's easy to correct the
> setting: delete the statement!
> If your system's init file(s) set(s) it, then it's also easy to
> correct the setting in your personal init file: remove the mapping
> from the alist:
>
>       (remove '("<whatever>" . conf-mode) auto-mode-alist)

All this does not apply here, since Robert's report can be reproduced in
"emacs -Q".

> BTW, the reg-exp you're citation tells (most probably):
>
>       .cfg, .conf, .cnf, .config files are opened in conf-mode.

As are cf.*, conf.*, cnf.*, config.* files.  That's rather broad.

> I don't understand the \\(?:\\.[a-zA-Z0-9._-]+\\) part – can it really
> stand for *any* extension?

It stands for most extensions, actually.

> If it's really that, then remove  the line
> cited from auto-mode-alist and add it in a changed form with  the
> reg-exp part I don't understand:
>
>       (add-to-list 'auto-mode-alist
> ("[/.]c\\(?:on\\)?f\\(?:i?g\\)\\'". conf-mode))

That would be a good idea.

Cheers,
       Sven