From: Drew Adams <drew.adams@oracle.com>
To: jack-mac <duthen.mac@gmail.com>, help-gnu-emacs@gnu.org
Subject: RE: poor Customize [was: Trying to right-align my window on startup]
Date: Mon, 13 Jan 2014 09:06:12 -0800 (PST) [thread overview]
Message-ID: <8c4d867a-998d-400e-a11d-3b9c237924de@default> (raw)
In-Reply-To: <3d001cf9-b321-4d6a-a41f-2ef0d294b7ba@googlegroups.com>
> > I have even suggested that the same or similar type-checking
> > and other `defcustom' features be made available (for optional
> > use) to `defvar'. Variables that are not user options can also
> > benefit from type checking, :set triggers, etc.
>
> Could you please elaborate on ":set triggers"?
See (elisp) `Variable Definitions'.
:set in `defcustom' specifies a function that is used to change the
option value. It can take care of anything that needs to be done
when the value gets set. By default (e.g., if unspecified), it
does only what `set-default' does: it sets the default value.
I used the word "trigger" loosely, to suggest that, via :set,
arbitrary code can be executed whenever the option value is set.
There are other, similar `defcustom' keywords. In particular,
:initialize.
next prev parent reply other threads:[~2014-01-13 17:06 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <<B67C92F68785104E8816FEEE2B44C9346F33C8FD@TEMCAS01.peinet.peinc.com>
[not found] ` <<83r48idw6z.fsf@gnu.org>
[not found] ` <<B67C92F68785104E8816FEEE2B44C9346F33C978@TEMCAS01.peinet.peinc.com>
[not found] ` <<83mwj5ekrs.fsf@gnu.org>
[not found] ` <<B67C92F68785104E8816FEEE2B44C9346F33D269@TEMCAS01.peinet.peinc.com>
[not found] ` <<28ab7799-fdc5-47c4-9ac0-f7db66771e7e@default>
[not found] ` <<83iotsdh9n.fsf@gnu.org>
2014-01-09 21:02 ` Trying to right-align my window on startup Drew Adams
2014-01-11 14:45 ` Juanma Barranquero
2014-01-11 17:35 ` poor Customize [was: Trying to right-align my window on startup] Drew Adams
[not found] ` <mailman.11630.1389461775.10748.help-gnu-emacs@gnu.org>
2014-01-13 15:11 ` jack-mac
2014-01-13 17:06 ` Drew Adams [this message]
[not found] ` <mailman.11626.1389451551.10748.help-gnu-emacs@gnu.org>
2014-01-14 9:24 ` Trying to right-align my window on startup Rusi
2014-01-14 17:37 ` In defense of Customize [was: Trying to right-align my window on startup] Drew Adams
2014-01-14 19:32 ` session.* files (was: In defense of Customize) gottlieb
2014-01-14 19:52 ` Peter Dyballa
2014-01-15 10:29 ` In defense of Customize [was: Trying to right-align my window on startup] Phillip Lord
2014-01-15 17:28 ` Drew Adams
2014-01-16 10:06 ` Phillip Lord
2014-01-16 15:33 ` Drew Adams
2014-01-14 17:53 ` Trying to right-align my window on startup Emanuel Berg
2014-01-14 17:57 ` Marcin Borkowski
[not found] ` <mailman.11925.1389722262.10748.help-gnu-emacs@gnu.org>
2014-01-14 18:15 ` Rusi
2014-01-14 18:19 ` Emanuel Berg
2014-01-15 4:44 ` Rusi
[not found] ` <mailman.11921.1389721075.10748.help-gnu-emacs@gnu.org>
2014-01-18 2:59 ` In defense of Customize [was: Trying to right-align my window on startup] Rusi
2014-01-18 4:42 ` Emanuel Berg
2014-01-18 15:31 ` Rusi
2014-01-28 15:17 ` Christoph Wedler
2014-01-28 18:35 ` Emanuel Berg
2014-01-29 10:57 ` Phillip Lord
2014-01-29 13:23 ` Stefan Monnier
2014-01-29 16:54 ` Phillip Lord
2014-01-29 18:26 ` Stefan Monnier
2014-01-30 9:59 ` Phillip Lord
[not found] ` <mailman.13090.1390993048.10748.help-gnu-emacs@gnu.org>
2014-01-29 16:52 ` Emanuel Berg
2014-01-29 17:19 ` Phillip Lord
[not found] ` <mailman.13107.1391015968.10748.help-gnu-emacs@gnu.org>
2014-01-29 18:21 ` Emanuel Berg
2014-01-29 0:47 ` Drew Adams
[not found] ` <mailman.13068.1390956492.10748.help-gnu-emacs@gnu.org>
2014-01-30 10:14 ` Christoph Wedler
2014-01-30 13:23 ` Stefan Monnier
2014-01-30 16:06 ` Drew Adams
[not found] ` <mailman.13194.1391088219.10748.help-gnu-emacs@gnu.org>
2014-01-30 16:15 ` Rusi
2014-01-30 18:44 ` Emanuel Berg
2014-01-31 9:56 ` Phillip Lord
[not found] ` <mailman.13338.1391162177.10748.help-gnu-emacs@gnu.org>
2014-01-31 12:08 ` Rusi
2014-01-31 20:41 ` Emanuel Berg
2014-01-31 20:39 ` Emanuel Berg
[not found] ` <mailman.13229.1391098001.10748.help-gnu-emacs@gnu.org>
2014-01-31 6:54 ` Rusi
2014-01-31 17:50 ` Christoph Wedler
2014-01-08 20:11 Trying to right-align my window on startup Mickey Ferguson
2014-01-08 21:01 ` Eli Zaretskii
[not found] ` <B67C92F68785104E8816FEEE2B44C9346F33C978@TEMCAS01.peinet.peinc.com>
2014-01-09 6:23 ` Eli Zaretskii
2014-01-09 20:16 ` Mickey Ferguson
2014-01-09 20:30 ` Eli Zaretskii
2014-01-09 20:32 ` Drew Adams
2014-01-09 20:36 ` Eli Zaretskii
2014-01-09 20:41 ` Marcin Borkowski
2014-01-09 21:04 ` Drew Adams
[not found] ` <mailman.11466.1389300108.10748.help-gnu-emacs@gnu.org>
2014-01-09 21:43 ` Sebastien Vauban
2014-01-09 22:23 ` Drew Adams
2014-01-10 22:31 ` Mickey Ferguson
2014-01-10 23:09 ` Drew Adams
2014-01-11 1:17 ` Mickey Ferguson
2014-01-11 3:07 ` Drew Adams
2014-01-13 23:14 ` Mickey Ferguson
2014-01-14 4:55 ` Eli Zaretskii
[not found] ` <<83k3e8dhj9.fsf@gnu.org>
2014-01-09 21:02 ` Drew Adams
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