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Re: Emacs completion matches selection UI
From: |
João Távora |
Subject: |
Re: Emacs completion matches selection UI |
Date: |
Mon, 30 Dec 2013 16:32:17 +0000 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) |
Stefan Monnier <address@hidden> writes:
>> Does it not then follow that part of creating a more uniform completion
>> experience ought to include direct Emacs support for that pattern? The
>> alternative is today's hodgepodge of per-package idiosyncratic redefinition
>> mechanisms.
>
> Yes. We should make it easier to extend indent-for-tab-command.
Do you think it's possible/desirable to generalize this mechanism (to
support the "fallback-maybe" pattern) so that we can make it easier to
extend any command, not just indent-for-tab-command?
In other words, I believe this could be useful for any binding. I've yet
to think of a nice interface, here's just a thought
(define-fallbackish-command maybe-foo (kbd "[somekey]") ()
(interactive)
(if (foop)
(foo)
(fallback)))
(define-fallbackish-command maybe-bar (kbd "[somekey]") (args...)
(interactive ...)
(if (barp)
(bar)
(fallback)))
Now, in a buffer where the active binding (set in whatever manner and
following the normal priority rules) for [somekey] is maybe-bar:
* if (barp) returns true, (bar) is run
* if (barp) fails and (foop) return true, (foo) is run
* if both (barp) and (foop) fail, we get the original keybinding
[somekey], or nothing if it wasn't bound.
In a buffer where the active binding for [somekey] is maybe-foo, only
(foo) can ever be run, maybe-bar doesn't enter into play, because it was
defined later.
Also note that the fallback doesn't have to be mutually exclusive with
the actual (bar) and (foo) calls, I just thought of this example.
João
- Re: Emacs completion matches selection UI, (continued)
- Re: Emacs completion matches selection UI, John Yates, 2013/12/23
- Re: Emacs completion matches selection UI, Stefan Monnier, 2013/12/23
- Re: Emacs completion matches selection UI, John Yates, 2013/12/23
- Re: Emacs completion matches selection UI, Stefan Monnier, 2013/12/28
- Re: Emacs completion matches selection UI, John Yates, 2013/12/28
- Re: Emacs completion matches selection UI, Stefan Monnier, 2013/12/30
- Re: Emacs completion matches selection UI,
João Távora <=
- Re: Emacs completion matches selection UI, João Távora, 2013/12/28
- Re: Emacs completion matches selection UI, John Yates, 2013/12/28
- Re: Emacs completion matches selection UI, Josh, 2013/12/28
- Re: Emacs completion matches selection UI, Stephen J. Turnbull, 2013/12/18
- Re: Emacs completion matches selection UI, chad, 2013/12/19
- Re: Emacs completion matches selection UI, Stephen J. Turnbull, 2013/12/19
- Re: Emacs completion matches selection UI, Aaron Ecay, 2013/12/19
- Re: Emacs completion matches selection UI, Stephen J. Turnbull, 2013/12/19
- Re: Emacs completion matches selection UI, Eli Zaretskii, 2013/12/19
- Re: Emacs completion matches selection UI, Ted Zlatanov, 2013/12/19