From: Thorsten Jolitz <tjolitz@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: How to exit function from inside its `interactive' call?
Date: Wed, 06 Aug 2014 21:38:31 +0200 [thread overview]
Message-ID: <878un1s91k.fsf@gmail.com> (raw)
Hi List,
how can I use catch/throw (or whatever) to exit function foo from inside
its 'interactive call? All combinations I tried so far only exit
'interactive and still execute the function body.
#+begin_src emacs-lisp
(defun foo (&optional arg)
(catch 'exit
(interactive
(let ((bar (if current-prefix-arg
(prefix-numeric-value)
(throw 'exit nil))))
(list (+ 2 bar)))))
(message "Arg: %s" arg))
#+end_src
#+results:
: Arg: nil
#+begin_src emacs-lisp
(foo)
#+end_src
#+results:
: Arg: nil
#+begin_src emacs-lisp
(foo '(4))
#+end_src
#+results:
: Arg: (4)
Thanks for any hint.
--
cheers,
Thorsten
next reply other threads:[~2014-08-06 19:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-06 19:38 Thorsten Jolitz [this message]
2014-08-06 19:47 ` How to exit function from inside its `interactive' call? Drew Adams
2014-08-06 21:12 ` Thorsten Jolitz
2014-08-07 7:14 ` Nicolas Richard
2014-08-07 8:33 ` Thorsten Jolitz
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