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bug#14591: New keyword :local for defcustom

From: Ted Zlatanov
Subject: bug#14591: New keyword :local for defcustom
Date: Tue, 11 Jun 2013 17:01:04 -0400
User-agent: Gnus/5.130004 (Ma Gnus v0.4) Emacs/24.3.50 (darwin)

On Tue, 11 Jun 2013 19:18:54 +0200 Juanma Barranquero <address@hidden> wrote: 

JB> This patch adds a new keyword :local to defcustom, to simplify cases like

JB> (defcustom some-var some-val
JB>    "A very long description
JB> filling many lines
JB> ...
JB> ...
JB> ..."
JB>   ;; some keywords)
JB> (make-variable-buffer-local 'some-var)

JB> i.e., it tries to solve the same problem (non-locality) for
JB> customization variables that the new macro defvar-local solves for
JB> defvars.

JB> As designed, it accepts values 'local (which means make the symbol
JB> automatically buffer-local), 'permanent (which makes the symbol
JB> permanent-local), and t which does both.

JB> OK to the idea, the interface, comments...?

I like it.  Also we have `defvoo' in Gnus which is along the same lines
but more aimed at the server data structure than defcustoms.

The interface makes perfect sense to me.


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