From: Joost Kremers <joost.m.kremers@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Make a defcustom dependent on another variable
Date: 19 Mar 2014 23:05:21 GMT [thread overview]
Message-ID: <slrnlik8lh.9nq.joost.m.kremers@j.kremers4.news.arnhem.chello.nl> (raw)
Hi all,
Defining a custom variable that can have one of (e.g.,) two values is
easy:
(defcustom some-option 'value1
"Doc string"
:group 'some-group
:type '(choice (const value1)
(const value2)))
However, what if the possible values `some-option' can take are defined
in another variable? Is it ok to do something like the following:
(defcustom some-option 'value1
"Doc string"
:group 'some-group
:type '(choice ,@(mapcar #'(lambda (x) `(const ,x))
some-option-list)))
where `some-option-list' is a variable holding a list of possible values
for `some-option'.
The code seems to work (the resulting customisation option works), but I
was wondering a) if there are any hidden problems I'm not aware of; and
b) if there is a more canonical way of doing this.
TIA
Joost
--
Joost Kremers joostkremers@fastmail.fm
Selbst in die Unterwelt dringt durch Spalten Licht
EN:SiS(9)
next reply other threads:[~2014-03-19 23:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-19 23:05 Joost Kremers [this message]
2014-03-20 8:17 ` Make a defcustom dependent on another variable Thien-Thi Nguyen
2014-03-20 12:19 ` Stefan
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