From: Miles Bader <miles@gnu.org>
To: emacs-devel@gnu.org
Subject: Re: Defining key onto copied global map problem
Date: Wed, 25 Feb 2009 09:11:51 +0900 [thread overview]
Message-ID: <87r61npe7s.fsf@catnip.gol.com> (raw)
In-Reply-To: 2855C172-B555-47C1-A1C1-2440BEDFED30@gmail.com
David Reitter <david.reitter@gmail.com> writes:
>>> (define-key (copy-keymap (current-global-map)) (kbd "M-c") 'ignore)
>
> Which is why changing the copy of the keymap should have no effect -
> but it does. I reproduce on Emacs 22.
>
> Note that
> (define-key (copy-keymap (current-global-map)) (kbd "x") 'ignore)
> works as expected, i.e. it does nothing.
I think the reason is that global meta bindings are looked up in the
ESC-prefix map, which is referenced in the top-level keymap using a
symbolic reference, not as an embedded keymap.
Even if copy-keymap recursively copies embedded keymaps, it does not
seem to recursively copy such symbolic references (which makes sense I
suppose).
(lookup-key (current-global-map) "\e") => ESC-prefix
-Miles
--
Patience, n. A minor form of despair, disguised as a virtue.
next prev parent reply other threads:[~2009-02-25 0:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-24 9:19 Defining key onto copied global map problem Tomohiro MATSUYAMA
2009-02-24 22:14 ` Stefan Monnier
2009-02-24 22:39 ` David Reitter
2009-02-25 0:11 ` Miles Bader [this message]
2009-02-25 4:54 ` Stefan Monnier
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