From: Andreas Schwab <schwab@linux-m68k.org>
To: "alin.s" <alinsoar@voila.fr>
Cc: Emacs-devel@gnu.org
Subject: Re: interactive?
Date: Mon, 18 Jan 2010 14:44:32 +0100 [thread overview]
Message-ID: <m34omjbk8v.fsf@hase.home> (raw)
In-Reply-To: <27210523.post@talk.nabble.com> (alin s.'s message of "Mon, 18 Jan 2010 05:32:02 -0800 (PST)")
"alin.s" <alinsoar@voila.fr> writes:
> Where in the evaluator one makes the diff between interactive and
> non-interactive?
commandp is a built-in function in `C source code'.
(commandp function &optional for-call-interactively)
Non-nil if function makes provisions for interactive calling.
This means it contains a description for how to read arguments to give it.
The value is nil for an invalid function or a symbol with no function
definition.
Interactively callable functions include strings and vectors (treated
as keyboard macros), lambda-expressions that contain a top-level call
to `interactive', autoload definitions made by `autoload' with non-nil
fourth argument, and some of the built-in functions of Lisp.
Also, a symbol satisfies `commandp' if its function definition does so.
If the optional argument for-call-interactively is non-nil,
then strings and vectors are not accepted.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2010-01-18 13:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-18 13:32 interactive? alin.s
2010-01-18 13:44 ` Andreas Schwab [this message]
2010-01-18 14:03 ` interactive? alin.s
2010-01-18 14:00 ` interactive? tomas
2010-01-18 14:10 ` interactive? alin.s
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