From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: phillip.lord@newcastle.ac.uk (Phillip Lord)
Cc: emacs-devel@gnu.org
Subject: Re: pre-command-hook with input methods
Date: Thu, 05 Feb 2015 15:19:40 -0500 [thread overview]
Message-ID: <jwvh9v02k2i.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <878ugcmqr6.fsf@newcastle.ac.uk> (Phillip Lord's message of "Thu, 05 Feb 2015 13:28:45 +0000")
> So, the pre-command-hook runs only *after* the multi-key press behaviour
> has been completed (either by introducing a diacritical letter or by not
> doing so). Hence on pressing "b" it gets run twice -- once to say "a has
> been entered" and once to say "b has been entered".
This is correct, since when you hit `a' the self-insert-command is not
run yet (instead the `a' char is inserted in the buffer by the input
method, which then waits for the next key to see which character was
really meant); it's only run after you hit `b'.
> All fine, but it's breaking my completion framework which removes
> previously offered completions on the pre-command-hook.
Indeed, I wouldn't be surprised if several other uses of
pre-command-hook could suffer from unexpected behaviors in
such situations.
> I need it to run as soon as the "a" key has been pressed.
Of course, you can do that using one of the input-method hooks (maybe
input-method-after-insert-chunk-hook), or you could rely on
before-change-functions.
> Is there a better hook?
I don't think so, sadly.
Maybe we could introduce a new hook like `after-idle-hook'. Part of the
question is what should happen if a timer or a process filter runs
(these can run while Emacs is "idle")? How 'bout when that
timer/process-filter inserts text near/at point?
Stefan
next prev parent reply other threads:[~2015-02-05 20:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-05 13:28 pre-command-hook with input methods Phillip Lord
2015-02-05 20:19 ` Stefan Monnier [this message]
2015-02-06 13:55 ` Phillip Lord
2015-02-06 15:17 ` Stefan Monnier
2015-02-06 15:45 ` Phillip Lord
2015-02-06 23:58 ` Stefan Monnier
2015-02-09 10:47 ` Phillip Lord
2015-02-09 14:41 ` Stefan Monnier
2015-02-09 15:30 ` Phillip Lord
2015-02-09 16:13 ` Stefan Monnier
2015-02-10 14:09 ` Phillip Lord
2015-02-11 17:17 ` Phillip Lord
2015-02-11 19:21 ` Stefan Monnier
2015-02-12 10:27 ` Phillip Lord
2015-05-25 22:52 ` Stefan Monnier
2015-05-27 16:03 ` Phillip Lord
2015-05-27 19:45 ` Stefan Monnier
2015-05-27 21:54 ` Phillip Lord
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