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Modal Keyboard Layout for EMACS
From: |
Junia |
Subject: |
Modal Keyboard Layout for EMACS |
Date: |
Thu, 22 Nov 2012 12:04:11 -0800 (PST) |
User-agent: |
G2/1.0 |
I would like to write a small VI emulator for Emacs. By small, I mean really
small. The source code should not go beyond 100 lines. I also need a better
keyboard map than one can find in VIM. The ESC key should be replaced by a key
that a typist can easily reach with the right hand.
My first idea was to substitute the [ square bracket for ESC. This substitution
is nice since people often uses ^[ to represent ESC. If the typist needs a [
square bracket, she can press the [ square bracket key twice. If she presses
the [ key once, Emacs enters the normal command mode, that appears as <N> on
the mode-line. The program below works fine with the [ square bracket.
The problem is that Dvořák layout places the [ square bracket at the upper
right hand side corner of the keyboard. In fewer words, the position of the [
square bracket in Dvořák layout is not easy to reach. As a matter of fact, it
is almost as bad as the Esc position in VIM. Therefore, I decided to use /
slash instead of [ square bracket.
However, if I replace / slash for the square bracket, the program below does
not work correctly. I mean, it ignores my remap of the / slash key. If I press
slash after replacing / slash for the occurrences of [ the program fails to
enter normal command mode.
Can anybody tell me why?
;; Variables for possible keyboards
(defvar default-keyboard
(copy-keymap (current-global-map)))
(defvar emap
(copy-keymap (current-global-map)))
(defun tovim() (interactive)
(setq minor-mode-alist
(assq-delete-all 'normal minor-mode-alist))
(add-to-list 'minor-mode-alist '(normal "<N>"))
(force-mode-line-update)
(use-global-map vmap))
(define-key emap "[" 'tovim)
(defvar vmap
(copy-keymap (current-global-map)))
(define-key vmap (kbd "h") 'backward-char)
(define-key vmap (kbd "j") 'next-line)
(define-key vmap (kbd "k") 'previous-line)
(define-key vmap (kbd "l") 'forward-char)
(defun ademacs()
(setq minor-mode-alist
(assq-delete-all 'normal minor-mode-alist))
(add-to-list 'minor-mode-alist '(normal "<I>"))
(force-mode-line-update)
(use-global-map emap) )
(defun toemacs() (interactive)
(ademacs))
(define-key vmap (kbd "i") 'toemacs)
(defun slash()(interactive)
(ademacs) ; type twice for [
(insert "["))
(define-key vmap (kbd "[") 'slash)
(defun puremacs()
(use-global-map default-keyboard))
(define-minor-mode normal
:init-value nil
:lighter " <N> "
:keymap '(emap)
:group 'normal
(if normal (ademacs) (puremacs) ))
(define-globalized-minor-mode gnormal normal
(lambda() (normal t)))
(provide 'normal)
Re: Modal Keyboard Layout for EMACS, rosangelamesil, 2012/11/23
Re: Modal Keyboard Layout for EMACS, rosangelamesil, 2012/11/23