* limit input allowed by read-from-minibuffer?
@ 2006-02-23 21:38 bturnip
2006-02-24 22:28 ` Drew Adams
0 siblings, 1 reply; 5+ messages in thread
From: bturnip @ 2006-02-23 21:38 UTC (permalink / raw)
I want to prompt for a value in the minibuffer and only accept the
input if it matches one of the choices presented in my prompt string.
How do I do this?
(defun example()
(interactive)
(setq read_method(read-from-minibuffer "Read Method?
[<,>,>>,+<,+>,+>>] " nil nil nil nil "<"))
)
^ permalink raw reply [flat|nested] 5+ messages in thread
* RE: limit input allowed by read-from-minibuffer?
2006-02-23 21:38 limit input allowed by read-from-minibuffer? bturnip
@ 2006-02-24 22:28 ` Drew Adams
0 siblings, 0 replies; 5+ messages in thread
From: Drew Adams @ 2006-02-24 22:28 UTC (permalink / raw)
I want to prompt for a value in the minibuffer and only accept the
input if it matches one of the choices presented in my prompt string.
How do I do this?
(defun example()
(interactive)
(setq read_method(read-from-minibuffer "Read Method?
[<,>,>>,+<,+>,+>>] " nil nil nil nil "<")))
You want `completing-read', not `read-from-minibuffer'. That will: 1) let
users complete their input to any of the possible values, and 2) require
that their input be one of those values. Use non-nil for the REQUIRE-MATCH
argument.
^ permalink raw reply [flat|nested] 5+ messages in thread
* limit input allowed by read-from-minibuffer?
@ 2006-02-23 21:39 bturnip
2006-02-23 23:30 ` B. T. Raven
0 siblings, 1 reply; 5+ messages in thread
From: bturnip @ 2006-02-23 21:39 UTC (permalink / raw)
I want to prompt for a value in the minibuffer and only accept the
input if it matches one of the choices presented in my prompt string.
How do I do this?
(defun example()
(interactive)
(setq read_method(read-from-minibuffer "Read Method?
[<,>,>>,+<,+>,+>>] " nil nil nil nil "<"))
)
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: limit input allowed by read-from-minibuffer?
2006-02-23 21:39 bturnip
@ 2006-02-23 23:30 ` B. T. Raven
2006-02-24 19:45 ` bturnip
0 siblings, 1 reply; 5+ messages in thread
From: B. T. Raven @ 2006-02-23 23:30 UTC (permalink / raw)
"bturnip" <bturnip@gmail.com> wrote in message
news:1140730760.877986.48650@i39g2000cwa.googlegroups.com...
> I want to prompt for a value in the minibuffer and only accept the
> input if it matches one of the choices presented in my prompt string.
> How do I do this?
>
> (defun example()
> (interactive)
> (setq read_method(read-from-minibuffer "Read Method?
> [<,>,>>,+<,+>,+>>] " nil nil nil nil "<"))
> )
>
(defun example()
(interactive)
(setq rm '("" "<" ">" ">>" "+<" "+>" "+>>"))
(while (progn
(setq read_method(read-from-minibuffer "Read Method?
[<,>,>>,+<,+>,+>>] " nil nil nil nil "<"))
(not (member read_method rm))))
)
I haven't tested this but something close to it should work. You have to
look for the null string because that's what will be bound to your
'read_method variable if you just press enter. It will then be a synonym
for "<"
Ed
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2006-02-24 22:28 UTC | newest]
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2006-02-23 21:38 limit input allowed by read-from-minibuffer? bturnip
2006-02-24 22:28 ` Drew Adams
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2006-02-23 21:39 bturnip
2006-02-23 23:30 ` B. T. Raven
2006-02-24 19:45 ` bturnip
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