code.delx.au - gnu-emacs/blob - lisp/language/korea-util.el

   1 ;;; korea-util.el --- utilities for Korean
   2
   3 ;; Copyright (C) 1997, 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
   4 ;;   Free Software Foundation, Inc.
   5 ;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   6 ;;   2007, 2008, 2009, 2010, 2011
   7 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
   8 ;;   Registration Number H14PRO021
   9
  10 ;; Keywords: mule, multilingual, Korean
  11
  12 ;; This file is part of GNU Emacs.
  13
  14 ;; GNU Emacs is free software: you can redistribute it and/or modify
  15 ;; it under the terms of the GNU General Public License as published by
  16 ;; the Free Software Foundation, either version 3 of the License, or
  17 ;; (at your option) any later version.
  18
  19 ;; GNU Emacs is distributed in the hope that it will be useful,
  20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 ;; GNU General Public License for more details.
  23
  24 ;; You should have received a copy of the GNU General Public License
  25 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  26
  27 ;;; Commentary:
  28
  29 ;;; Code:
  30
  31 ;;;###autoload
  32 (defvar default-korean-keyboard
  33    (purecopy (if (string-match "3" (or (getenv "HANGUL_KEYBOARD_TYPE") ""))
  34       "3"
  35     ""))
  36   "*The kind of Korean keyboard for Korean input method.
  37 \"\" for 2, \"3\" for 3.")
  38
  39 ;; functions useful for Korean text input
  40
  41 (defun toggle-korean-input-method ()
  42   "Turn on or off a Korean text input method for the current buffer."
  43   (interactive)
  44   (if current-input-method
  45       (inactivate-input-method)
  46     (activate-input-method
  47      (concat "korean-hangul" default-korean-keyboard))))
  48
  49 (defun quail-hangul-switch-symbol-ksc (&rest ignore)
  50   "Swith to/from Korean symbol package."
  51   (interactive "i")
  52   (and current-input-method
  53        (if (string-equal current-input-method "korean-symbol")
  54            (activate-input-method (concat "korean-hangul"
  55                                           default-korean-keyboard))
  56          (activate-input-method "korean-symbol"))))
  57
  58 (defun quail-hangul-switch-hanja (&rest ignore)
  59   "Swith to/from Korean hanja package."
  60   (interactive "i")
  61   (and current-input-method
  62        (if (string-match "korean-hanja" current-input-method)
  63            (activate-input-method (concat "korean-hangul"
  64                                           default-korean-keyboard))
  65          (activate-input-method (concat "korean-hanja"
  66                                         default-korean-keyboard)))))
  67
  68 ;; The following three commands are set in isearch-mode-map.
  69
  70 (defun isearch-toggle-korean-input-method ()
  71   (interactive)
  72   (let ((overriding-terminal-local-map nil))
  73     (toggle-korean-input-method))
  74   (setq isearch-input-method-function input-method-function
  75         isearch-input-method-local-p t)
  76   (setq input-method-function nil)
  77   (isearch-update))
  78
  79 (defun isearch-hangul-switch-symbol-ksc ()
  80   (interactive)
  81   (let ((overriding-terminal-local-map nil))
  82     (quail-hangul-switch-symbol-ksc))
  83   (setq isearch-input-method-function input-method-function
  84         isearch-input-method-local-p t)
  85   (setq input-method-function nil)
  86   (isearch-update))
  87
  88 (defun isearch-hangul-switch-hanja ()
  89   (interactive)
  90   (let ((overriding-terminal-local-map nil))
  91     (quail-hangul-switch-hanja))
  92   (setq isearch-input-method-function input-method-function
  93         isearch-input-method-local-p t)
  94   (setq input-method-function nil)
  95   (isearch-update))
  96
  97 ;; Information for setting and exiting Korean environment.
  98 (defvar korean-key-bindings
  99   `((global [?\S- ] toggle-korean-input-method nil)
 100     (global [Hangul] toggle-korean-input-method nil)
 101     (global [C-f9] quail-hangul-switch-symbol-ksc nil)
 102     (global [f9] hangul-to-hanja-conversion nil)
 103     (global [Hangul_Hanja] hangul-to-hanja-conversion nil)
 104     (,isearch-mode-map [?\S- ] isearch-toggle-korean-input-method nil)
 105     (,isearch-mode-map [Hangul] isearch-toggle-korean-input-method nil)
 106     (,isearch-mode-map [C-f9] isearch-hangul-switch-symbol-ksc nil)
 107     (,isearch-mode-map [f9] isearch-hangul-switch-hanja nil)))
 108
 109 ;;;###autoload
 110 (defun setup-korean-environment-internal ()
 111   (use-cjk-char-width-table 'ko_KR)
 112   (let ((key-bindings korean-key-bindings))
 113     (while key-bindings
 114       (let* ((this (car key-bindings))
 115              (key (nth 1 this))
 116              (new-def (nth 2 this))
 117              old-def)
 118         (if (eq (car this) 'global)
 119             (progn
 120               (setq old-def (global-key-binding key))
 121               (global-set-key key new-def))
 122           (setq old-def (lookup-key (car this) key))
 123           (define-key (car this) key new-def))
 124         (setcar (nthcdr 3 this) old-def))
 125       (setq key-bindings (cdr key-bindings)))))
 126
 127 (defun exit-korean-environment ()
 128   "Exit Korean language environment."
 129   (use-default-char-width-table)
 130   (let ((key-bindings korean-key-bindings))
 131     (while key-bindings
 132       (let* ((this (car key-bindings))
 133              (key (nth 1 this))
 134              (new-def (nth 2 this))
 135              (old-def (nth 3 this)))
 136         (if (eq (car this) 'global)
 137             (if (eq (global-key-binding key) new-def)
 138                 (global-set-key key old-def))
 139           (if (eq (lookup-key (car this) key) new-def)
 140               (define-key (car this) key old-def))))
 141       (setq key-bindings (cdr key-bindings)))))
 142
 143 ;;
 144 (provide 'korea-util)
 145
 146 ;;; korea-util.el ends here