From: "Arne Jørgensen" <arne@arnested.dk>
To: help-gnu-emacs@gnu.org
Subject: Re: Problem with `dir-locals-set-class-variables'
Date: Sun, 08 Apr 2012 11:09:26 +0200 [thread overview]
Message-ID: <m2pqbitws9.fsf@arnested.dk> (raw)
In-Reply-To: mailman.660.1333729584.20052.help-gnu-emacs@gnu.org
Glenn Morris <rgm@gnu.org> writes:
> Arne Jørgensen wrote:
>
>> But if I want to use the other form of `dir-locals-set-class-variables'
>> where variables is of the form (DIRECTORY . LIST) like this:
>>
>> (dir-locals-set-class-variables 'my-test '(("~/my-test-dir" . ((nil . ((my-test-var . "some-value")))))))
>>
>> and then visit a file i.e. ~/my-test-dir/my-test-file the variable is
>> NOT applied.
>
> I don't see this form documented anywhere. What makes you think it
> should work?
>
> C-h f dir-locals-set-class-variables
>
> (dir-locals-set-directory-class DIRECTORY CLASS &optional MTIME)
> [...]
> CLASS is the name of a project class, a symbol.
C-h f dir-locals-set-class-variables
dir-locals-set-class-variables is a compiled Lisp function in
`files.el'.
(dir-locals-set-class-variables CLASS VARIABLES)
Map the type CLASS to a list of variable settings.
CLASS is the project class, a symbol. VARIABLES is a list
that declares directory-local variables for the class.
An element in VARIABLES is either of the form:
(MAJOR-MODE . ALIST)
or
(DIRECTORY . LIST)
In the first form, MAJOR-MODE is a symbol, and ALIST is an alist
whose elements are of the form (VARIABLE . VALUE).
In the second form, DIRECTORY is a directory name (a string), and
LIST is a list of the form accepted by the function.
When a file is visited, the file's class is found. A directory
may be assigned a class using `dir-locals-set-directory-class'.
Then variables are set in the file's buffer according to the
class' LIST. The list is processed in order.
* If the element is of the form (MAJOR-MODE . ALIST), and the
buffer's major mode is derived from MAJOR-MODE (as determined
by `derived-mode-p'), then all the variables in ALIST are
applied. A MAJOR-MODE of nil may be used to match any buffer.
`make-local-variable' is called for each variable before it is
set.
* If the element is of the form (DIRECTORY . LIST), and DIRECTORY
is an initial substring of the file's directory, then LIST is
applied by recursively following these rules.
next prev parent reply other threads:[~2012-04-08 9:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-06 8:26 Problem with `dir-locals-set-class-variables' Arne Jørgensen
2012-04-06 16:26 ` Glenn Morris
[not found] ` <mailman.660.1333729584.20052.help-gnu-emacs@gnu.org>
2012-04-08 9:09 ` Arne Jørgensen [this message]
2012-04-09 7:05 ` Glenn Morris
[not found] ` <mailman.781.1333955155.20052.help-gnu-emacs@gnu.org>
2012-04-09 16:24 ` Arne Jørgensen
2012-04-11 16:36 ` Glenn Morris
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