From: Lars Ingebrigtsen <larsi@gnus.org>
To: "Óscar Fuentes" <ofv@wanadoo.es>
Cc: emacs-devel@gnu.org
Subject: Re: Limit what M-x TAB lists?
Date: Thu, 26 Dec 2013 17:09:49 +0100 [thread overview]
Message-ID: <877garh9v6.fsf@building.gnus.org> (raw)
In-Reply-To: <87mwjn7g75.fsf@wanadoo.es> ("Óscar Fuentes"'s message of "Thu, 26 Dec 2013 17:03:10 +0100")
Óscar Fuentes <ofv@wanadoo.es> writes:
> Instead of a predicate for every function, the usual Emacs idiom of "if
> it is a symbol, filter by mode, if it is a function, it must be a
> predicate returning non-nil if the command is applicable blah blah...".
> I'll bet that 99% of the commands fall in the "symbol" case, which is
> fast.
Yup. But perhaps the symbols we want to use here are really mode names?
And mode names are unfortunately also functions... Hm...
> I'm definitely interested on this idea. It is annoying (as in "Emacs
> looks stupid and counterproductive") to always see useless candidates on
> M-x. If you put the underlying machinery in place, I volunteer for the
> command hunt.
Great!
> It would be nice if the annotations were backwards compatible, so they
> could be added to external packages without making them incompatible
> with past Emacs releases.
Well, if we go with new variations on `interactive', then external
packages could just do something like
(unless (fboundp 'command)
(defmacro command (&rest args)
`(interactive ,@(cdr args))))
and then
(defun vc-dir-mark ()
(command 'vc-dir-mode "p")
...)
(defun quit-window ()
(command (lambda () (..stuff..)) "p")
...)
Or something. Would that work, or is `interactive' interpreted even
more specially? (I.e., before macro expansion...) Let's see...
(defun foo (arg)
(command 'bar "p")
(message "%s" arg))
Yup, seems to work.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
next prev parent reply other threads:[~2013-12-26 16:09 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-26 14:18 Limit what M-x TAB lists? Lars Ingebrigtsen
2013-12-26 14:58 ` Stefan Monnier
2013-12-26 15:24 ` Lars Ingebrigtsen
2013-12-26 16:03 ` Óscar Fuentes
2013-12-26 16:09 ` Lars Ingebrigtsen [this message]
2013-12-26 17:50 ` Stefan Monnier
2013-12-26 18:03 ` Lars Ingebrigtsen
2013-12-27 1:41 ` Lars Ingebrigtsen
2014-01-03 18:00 ` Ted Zlatanov
2014-01-06 15:47 ` Davis Herring
2014-01-18 17:43 ` Lars Ingebrigtsen
2013-12-26 17:50 ` Tom
2014-01-11 21:07 ` Nix
2014-01-11 23:38 ` Drew Adams
2013-12-27 7:29 ` Stephen J. Turnbull
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