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Re: [Qemu-trivial] [Qemu-devel] [PATCH v2] Add .dir-locals.el file to co

From: John Snow
Subject: Re: [Qemu-trivial] [Qemu-devel] [PATCH v2] Add .dir-locals.el file to configure emacs coding style
Date: Mon, 24 Aug 2015 20:15:52 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0

On 06/18/2015 10:05 AM, Markus Armbruster wrote:
> Peter Maydell <address@hidden> writes:
>> On 18 June 2015 at 10:28, Markus Armbruster <address@hidden> wrote:
>>> However, I can't see how I could define a new C style there without
>>> pushing the "local variables" feature well beyond its intended use, and
>>> triggering the confirmation prompts.
>> We wouldn't want to define a new C style, but in general the items
>> I have in my config over the Stroustrup defaults are going to be there
>> because I've noticed something where Stroustrup doesn't indent right...
> As far as I can see, the difference bwteen stroustrup style and yours is
> a few tweaks to c-offsets-alist and c-hanging-braces-alist.  I'm not
> sure how to do that from .dir-locals.el.
>>> If we take Dan's patch, every Emacs user who hasn't already configured a
>>> suitable style profits.  Users who have may have to adjust their
>>> configuration to work with or around Dan's patch.
>> Is there some way to tell whether your emacs has picked up the local
>> style info rather than the one you have in your .emacs ?
> The obvious way is to check the buffer-local variables.  Buffer-local
> variable c-indentation-style is the name of the style in use.  Without
> anything in .emacs or local variables, it's "gnu".  With your
> (c-add-style "qemu" qemu-c-style) in .emacs, it should be "qemu".  With
> Dan's .dir-locals.el, it should be "stroustrup".
> When you can't or don't want to create or modify a .dir-locals.el, you
> can do something like this instead:
>     (dir-locals-set-class-variables 'qemu '((c-mode . ((c-file-style . 
> "qemu")))))
>     (dir-locals-set-directory-class "~/work/qemu" 'qemu)
> This *overrides* .dir-locals.el in my testing.

ping -- any love for this for 2.5?

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