lisp/language/korea-util.el

   1 ;;; korea-util.el --- utilities for Korean
   2
   3 ;; Copyright (C) 1997 Free Software Foundation, Inc.
   4
   5 ;; Keywords: mule, multilingual, Korean
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; GNU Emacs is free software; you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation; either version 2, or (at your option)
  12 ;; any later version.
  13
  14 ;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  22 ;; Boston, MA 02111-1307, USA.
  23
  24 ;;; Code:
  25
  26 ;;;###autoload
  27 (defvar default-korean-keyboard
  28   (if (string-match "3" (or (getenv "HANGUL_KEYBOARD_TYPE") ""))
  29       "3"
  30     "")
  31   "*The kind of Korean keyboard for Korean input method.
  32 \"\" for 2, \"3\" for 3.")
  33
  34 ;; functions useful for Korean text input
  35
  36 (defun toggle-korean-input-method ()
  37   "Turn on or off a Korean text input method for the current buffer."
  38   (interactive)
  39   (if current-input-method
  40       (inactivate-input-method)
  41     (activate-input-method
  42      (concat "korean-hangul" default-korean-keyboard))))
  43
  44 (defun quail-hangul-switch-symbol-ksc (&rest ignore)
  45   "Swith to/from Korean symbol package."
  46   (interactive "i")
  47   (and current-input-method
  48        (if (string-equal current-input-method "korean-symbol")
  49            (activate-input-method (concat "korean-hangul"
  50                                           default-korean-keyboard))
  51          (activate-input-method "korean-symbol"))))
  52
  53 (defun quail-hangul-switch-hanja (&rest ignore)
  54   "Swith to/from Korean hanja package."
  55   (interactive "i")
  56   (and current-input-method
  57        (if (string-match "korean-hanja" current-input-method)
  58            (activate-input-method (concat "korean-hangul"
  59                                           default-korean-keyboard))
  60          (activate-input-method (concat "korean-hanja"
  61                                         default-korean-keyboard)))))
  62
  63 ;; The following three commands are set in isearch-mode-map.
  64
  65 (defun isearch-toggle-korean-input-method ()
  66   (interactive)
  67   (let ((overriding-terminal-local-map nil))
  68     (toggle-korean-input-method))
  69   (setq isearch-input-method-function input-method-function
  70         isearch-input-method-local-p t)
  71   (setq input-method-function nil)
  72   (isearch-update))
  73
  74 (defun isearch-hangul-switch-symbol-ksc ()
  75   (interactive)
  76   (let ((overriding-terminal-local-map nil))
  77     (quail-hangul-switch-symbol-ksc))
  78   (setq isearch-input-method-function input-method-function
  79         isearch-input-method-local-p t)
  80   (setq input-method-function nil)
  81   (isearch-update))
  82
  83 (defun isearch-hangul-switch-hanja ()
  84   (interactive)
  85   (let ((overriding-terminal-local-map nil))
  86     (quail-hangul-switch-hanja))
  87   (setq isearch-input-method-function input-method-function
  88         isearch-input-method-local-p t)
  89   (setq input-method-function nil)
  90   (isearch-update))
  91
  92 ;; Information for setting and exiting Korean environment.
  93 (defvar korean-key-bindings
  94   `((global [?\S- ] toggle-korean-input-method nil)
  95     (global [C-f9] quail-hangul-switch-symbol-ksc nil)
  96     (global [f9]  quail-hangul-switch-hanja nil)
  97     (,isearch-mode-map [?\S- ] isearch-toggle-korean-input-method nil)
  98     (,isearch-mode-map [C-f9] isearch-hangul-switch-symbol-ksc nil)
  99     (,isearch-mode-map [f9] isearch-hangul-switch-hanja nil)))
 100
 101 ;;;###autoload
 102 (defun setup-korean-environment-internal ()
 103   (let ((key-bindings korean-key-bindings))
 104     (while key-bindings
 105       (let* ((this (car key-bindings))
 106              (key (nth 1 this))
 107              (new-def (nth 2 this))
 108              old-def)
 109         (if (eq (car this) 'global)
 110             (progn
 111               (setq old-def (global-key-binding key))
 112               (global-set-key key new-def))
 113           (setq old-def (lookup-key (car this) key))
 114           (define-key (car this) key new-def))
 115         (setcar (nthcdr 3 this) old-def))
 116       (setq key-bindings (cdr key-bindings)))))
 117
 118 (defun exit-korean-environment ()
 119   "Exit Korean language environment."
 120   (let ((key-bindings korean-key-bindings))
 121     (while key-bindings
 122       (let* ((this (car key-bindings))
 123              (key (nth 1 this))
 124              (new-def (nth 2 this))
 125              (old-def (nth 3 this)))
 126         (if (eq (car this) 'global)
 127             (if (eq (global-key-binding key) new-def)
 128                 (global-set-key key old-def))
 129           (if (eq (lookup-key (car this) key) new-def)
 130               (define-key (car this) key old-def))))
 131       (setq key-bindings (cdr key-bindings)))))
 132
 133 ;;
 134 (provide 'korea-util)
 135
 136 ;;; korean-util.el ends here