* bug#13685: a way to say that dir-locals should only apply to buffers with files
[not found] <emtxpj7gzs.fsf@fencepost.gnu.org>
@ 2013-02-12 2:32 ` Glenn Morris
2013-02-13 3:24 ` Josh
0 siblings, 1 reply; 5+ messages in thread
From: Glenn Morris @ 2013-02-12 2:32 UTC (permalink / raw
To: 13685
Glenn Morris wrote:
> I think there should be some way in a dir-locals file to say
> "these settings should only be applied to buffers with files".
> Sometimes some options are not appropriate for file-less buffers.
> Ref bug#11127.
This seems easy to do, but I don't know what the best UI is.
An element in the dir-locals list:
(fileonly . t)
or
(apply-to . files)
The latter allows for
(apply-to . nonfiles)
as well (though I can't think of a use for that).
^ permalink raw reply [flat|nested] 5+ messages in thread* bug#13685: a way to say that dir-locals should only apply to buffers with files
2013-02-12 2:32 ` bug#13685: a way to say that dir-locals should only apply to buffers with files Glenn Morris
@ 2013-02-13 3:24 ` Josh
2013-02-13 8:36 ` Andreas Schwab
2013-02-21 16:16 ` Ted Zlatanov
0 siblings, 2 replies; 5+ messages in thread
From: Josh @ 2013-02-13 3:24 UTC (permalink / raw
To: Glenn Morris; +Cc: 13685
On Mon, Feb 11, 2013 at 6:32 PM, Glenn Morris <rgm@gnu.org> wrote:
> Glenn Morris wrote:
>
>> I think there should be some way in a dir-locals file to say
>> "these settings should only be applied to buffers with files".
>> Sometimes some options are not appropriate for file-less buffers.
>> Ref bug#11127.
>
> This seems easy to do, but I don't know what the best UI is.
> An element in the dir-locals list:
>
> (fileonly . t)
>
> or
>
> (apply-to . files)
Or more generally, the cdr could specify a predicate taking a single
argument (the buffer), e.g.
(apply-if . buffer-file-name)
> The latter allows for
>
> (apply-to . nonfiles)
>
> as well (though I can't think of a use for that).
Likewise, (apply-if . (lambda (buffer) (not (buffer-file-name buffer))))
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#13685: a way to say that dir-locals should only apply to buffers with files
2013-02-13 3:24 ` Josh
@ 2013-02-13 8:36 ` Andreas Schwab
2013-02-13 17:18 ` Josh
2013-02-21 16:16 ` Ted Zlatanov
1 sibling, 1 reply; 5+ messages in thread
From: Andreas Schwab @ 2013-02-13 8:36 UTC (permalink / raw
To: Josh; +Cc: 13685
Josh <josh@foxtail.org> writes:
> Likewise, (apply-if . (lambda (buffer) (not (buffer-file-name buffer))))
Be careful about execution of arbitrary code.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#13685: a way to say that dir-locals should only apply to buffers with files
2013-02-13 8:36 ` Andreas Schwab
@ 2013-02-13 17:18 ` Josh
0 siblings, 0 replies; 5+ messages in thread
From: Josh @ 2013-02-13 17:18 UTC (permalink / raw
To: Andreas Schwab; +Cc: 13685
On Wed, Feb 13, 2013 at 12:36 AM, Andreas Schwab <schwab@linux-m68k.org> wrote:
> Josh <josh@foxtail.org> writes:
>
>> Likewise, (apply-if . (lambda (buffer) (not (buffer-file-name buffer))))
>
> Be careful about execution of arbitrary code.
>
> Andreas.
Indeed, such a feature should be governed by `enable-local-eval' and
`safe-local-eval-forms' or similar, with `buffer-file-name' being an
element of the latter by default.
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#13685: a way to say that dir-locals should only apply to buffers with files
2013-02-13 3:24 ` Josh
2013-02-13 8:36 ` Andreas Schwab
@ 2013-02-21 16:16 ` Ted Zlatanov
1 sibling, 0 replies; 5+ messages in thread
From: Ted Zlatanov @ 2013-02-21 16:16 UTC (permalink / raw
To: Josh; +Cc: 13685
On Tue, 12 Feb 2013 19:24:19 -0800 Josh <josh@foxtail.org> wrote:
J> Or more generally, the cdr could specify a predicate taking a single
J> argument (the buffer), e.g.
J> (apply-if . buffer-file-name)
...
J> Likewise, (apply-if . (lambda (buffer) (not (buffer-file-name buffer))))
I like the idea, but why not structure it like a cond statement since
that's what you're doing anyway?
Ted
^ permalink raw reply [flat|nested] 5+ messages in thread
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2013-02-12 2:32 ` bug#13685: a way to say that dir-locals should only apply to buffers with files Glenn Morris
2013-02-13 3:24 ` Josh
2013-02-13 8:36 ` Andreas Schwab
2013-02-13 17:18 ` Josh
2013-02-21 16:16 ` Ted Zlatanov
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