;;; double.el --- Support for keyboard remapping with double clicking
-;; Copyright (C) 1994 Free Software Foundation, Inc.
+;; Copyright (C) 1994, 1997, 1998 Free Software Foundation, Inc.
-;; Author: Per Abrahamsen <abraham@iesd.auc.dk>
+;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
;; Keywords: i18n
;; This file is part of GNU Emacs.
;; of such mappings, and just supporting the most common would
;; increase the size of this nice small file manyfold.
-;;; ChangeLog:
-
-;; * 1994-06-21 Per Abrahamsen
-;; Added `double-prefix-only'.
-;; * 1994-02-28 Per Abrahamsen
-;; Use 127 instead of 'delete to delete a character.
-;; * 1994-02-03 Per Abrahamsen
-;; Created.
-
;;; Code:
-(defvar double-map
+(defgroup double nil
+ "Remap keyboard, but get original by typing the same key twice."
+ :group 'i18n)
+
+(defcustom double-map
'((?\; "\346" ";")
(?\' "\370" "'")
(?\[ "\345" "[")
Each entry is a list with three elements:
1. The key activating the translation.
2. The string to be inserted when the key is pressed once.
-3. The string to be inserted when the key is pressed twice.")
+3. The string to be inserted when the key is pressed twice."
+ :group 'double
+ :type '(repeat (list (character :tag "Key")
+ (string :tag "Once")
+ (string :tag "Twice"))))
-(defvar double-prefix-only t
+(defcustom double-prefix-only t
"*Non-nil means that Double mode mapping only works for prefix keys.
That is, for any key `X' in `double-map', `X' alone will be mapped
-but not `C-u X' or `ESC X' since the X is not the prefix key.")
+but not `C-u X' or `ESC X' since the X is not the prefix key."
+ :group 'double
+ :type 'boolean)
;;; Read Event
;;; Key Translation Map
-(defvar default-key-translation-map
- (or key-translation-map (make-sparse-keymap))
- "Key translation you want to have effect, regardless of Double mode.
-This defaults to the value of `key-translation-map' when double was
-first loaded.")
-
-(make-variable-buffer-local 'key-translation-map)
-
-(defun double-setup ()
- ;; Setup key-translation-map as indicated by `double-map'.
- (setq key-translation-map (copy-keymap default-key-translation-map))
- (mapcar (function (lambda (entry)
- (define-key key-translation-map (vector (nth 0 entry))
- 'double-translate-key)))
- (append double-map '((magic-start) (magic-end)))))
+(defun double-setup (enable-flag)
+ (if enable-flag
+ (progn
+ ;; Set up key-translation-map as indicated by `double-map'.
+ (kill-local-variable 'key-translation-map)
+ (make-local-variable 'key-translation-map)
+ (setq key-translation-map (if (keymapp key-translation-map)
+ (copy-keymap key-translation-map)
+ (make-sparse-keymap)))
+ (mapcar (function (lambda (entry)
+ (define-key key-translation-map
+ (vector (nth 0 entry))
+ 'double-translate-key)))
+ (append double-map '((magic-start) (magic-end)))))
+ (kill-local-variable 'key-translation-map)))
;;; Mode
-(defvar double-mode nil)
-;; Indicator for the double mode.
- (make-variable-buffer-local 'double-mode)
+;;;###autoload
+(defcustom double-mode nil
+ "Toggle Double mode.
+Setting this variable directly does not take effect;
+use either \\[customize] or the function `double-mode'."
+ :set (lambda (symbol value)
+ (double-mode (if value 1 0)))
+ :initialize 'custom-initialize-default
+ :link '(emacs-commentary-link "double")
+ :type 'boolean
+ :require 'double
+ :group 'double)
+(make-variable-buffer-local 'double-mode)
(or (assq 'double-mode minor-mode-alist)
(setq minor-mode-alist
(if double-mode
(progn
(let ((double-map))
- (double-setup))
+ (double-setup nil))
(setq double-mode nil)
(force-mode-line-update)))
;;Turn it on
(if double-mode
()
- (double-setup)
+ (double-setup t)
(setq double-mode t)
(force-mode-line-update))))