summaryrefslogtreecommitdiff
path: root/lisp/language/korea-util.el
blob: 296dbd7897009f8d0a1af4fa138a35475db24f49 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
;;; korea-util.el --- utilities for Korean

;; Copyright (C) 1997, 1999, 2001-2020 Free Software Foundation, Inc.
;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
;;   2007, 2008, 2009, 2010, 2011
;;   National Institute of Advanced Industrial Science and Technology (AIST)
;;   Registration Number H14PRO021

;; Keywords: mule, multilingual, Korean

;; This file is part of GNU Emacs.

;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;;; Code:

;;;###autoload
(defvar default-korean-keyboard
   (purecopy (if (string-match "3" (or (getenv "HANGUL_KEYBOARD_TYPE") ""))
      "3"
    ""))
   "The kind of Korean keyboard for Korean input method.
\"\" for 2, \"3\" for 3.")

;; functions useful for Korean text input

(defun toggle-korean-input-method ()
  "Turn on or off a Korean text input method for the current buffer."
  (interactive)
  (if current-input-method
      (deactivate-input-method)
    (activate-input-method
     (concat "korean-hangul" default-korean-keyboard))))

(defun quail-hangul-switch-symbol-ksc (&rest ignore)
  "Swith to/from Korean symbol package."
  (interactive "i")
  (and current-input-method
       (if (string-equal current-input-method "korean-symbol")
	   (activate-input-method (concat "korean-hangul"
					  default-korean-keyboard))
	 (activate-input-method "korean-symbol"))))

(defun quail-hangul-switch-hanja (&rest ignore)
  "Swith to/from Korean hanja package."
  (interactive "i")
  (and current-input-method
       (if (string-match "korean-hanja" current-input-method)
	   (activate-input-method (concat "korean-hangul"
					  default-korean-keyboard))
	 (activate-input-method (concat "korean-hanja"
					default-korean-keyboard)))))

;; The following three commands are set in isearch-mode-map.

(defun isearch-toggle-korean-input-method ()
  (interactive)
  (let ((overriding-terminal-local-map nil))
    (toggle-korean-input-method))
  (setq isearch-input-method-function input-method-function
	isearch-input-method-local-p t)
  (setq input-method-function nil)
  (isearch-update))

(defun isearch-hangul-switch-symbol-ksc ()
  (interactive)
  (let ((overriding-terminal-local-map nil))
    (quail-hangul-switch-symbol-ksc))
  (setq isearch-input-method-function input-method-function
	isearch-input-method-local-p t)
  (setq input-method-function nil)
  (isearch-update))

(defun isearch-hangul-switch-hanja ()
  (interactive)
  (let ((overriding-terminal-local-map nil))
    (quail-hangul-switch-hanja))
  (setq isearch-input-method-function input-method-function
	isearch-input-method-local-p t)
  (setq input-method-function nil)
  (isearch-update))

;; Information for setting and exiting Korean environment.
(defvar korean-key-bindings
  `((global [?\S- ] toggle-korean-input-method nil)
    (global [Hangul] toggle-korean-input-method nil)
    (global [C-f9] quail-hangul-switch-symbol-ksc nil)
    (global [f9] hangul-to-hanja-conversion nil)
    (global [Hangul_Hanja] hangul-to-hanja-conversion nil)
    (,isearch-mode-map [?\S- ] isearch-toggle-korean-input-method nil)
    (,isearch-mode-map [Hangul] isearch-toggle-korean-input-method nil)
    (,isearch-mode-map [C-f9] isearch-hangul-switch-symbol-ksc nil)
    (,isearch-mode-map [f9] isearch-hangul-switch-hanja nil)))

;;;###autoload
(defun setup-korean-environment-internal ()
  (use-cjk-char-width-table 'ko_KR)
  (let ((key-bindings korean-key-bindings))
    (while key-bindings
      (let* ((this (car key-bindings))
	     (key (nth 1 this))
	     (new-def (nth 2 this))
	     old-def)
	(if (eq (car this) 'global)
	    (progn
	      (setq old-def (global-key-binding key))
	      (global-set-key key new-def))
	  (setq old-def (lookup-key (car this) key))
	  (define-key (car this) key new-def))
	(setcar (nthcdr 3 this) old-def))
      (setq key-bindings (cdr key-bindings)))))

(defun exit-korean-environment ()
  "Exit Korean language environment."
  (use-default-char-width-table)
  (let ((key-bindings korean-key-bindings))
    (while key-bindings
      (let* ((this (car key-bindings))
	     (key (nth 1 this))
	     (new-def (nth 2 this))
	     (old-def (nth 3 this)))
	(if (eq (car this) 'global)
	    (if (eq (global-key-binding key) new-def)
		(global-set-key key old-def))
	  (if (eq (lookup-key (car this) key) new-def)
	      (define-key (car this) key old-def))))
      (setq key-bindings (cdr key-bindings)))))

;;
(provide 'korea-util)

;;; korea-util.el ends here