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 ;;; Commentary:
  25
  26 ;;; Code:
  27
  28 ;;;###autoload
  29 (defvar default-korean-keyboard
  30   (if (string-match "3" (or (getenv "HANGUL_KEYBOARD_TYPE") ""))
  31       "3"
  32     "")
  33   "*The kind of Korean keyboard for Korean input method.
  34 \"\" for 2, \"3\" for 3.")
  35
  36 ;; functions useful for Korean text input
  37
  38 (defun toggle-korean-input-method ()
  39   "Turn on or off a Korean text input method for the current buffer."
  40   (interactive)
  41   (if current-input-method
  42       (inactivate-input-method)
  43     (activate-input-method
  44      (concat "korean-hangul" default-korean-keyboard))))
  45
  46 (defun quail-hangul-switch-symbol-ksc (&rest ignore)
  47   "Swith to/from Korean symbol package."
  48   (interactive "i")
  49   (and current-input-method
  50        (if (string-equal current-input-method "korean-symbol")
  51            (activate-input-method (concat "korean-hangul"
  52                                           default-korean-keyboard))
  53          (activate-input-method "korean-symbol"))))
  54
  55 (defun quail-hangul-switch-hanja (&rest ignore)
  56   "Swith to/from Korean hanja package."
  57   (interactive "i")
  58   (and current-input-method
  59        (if (string-match "korean-hanja" current-input-method)
  60            (activate-input-method (concat "korean-hangul"
  61                                           default-korean-keyboard))
  62          (activate-input-method (concat "korean-hanja"
  63                                         default-korean-keyboard)))))
  64
  65 ;; The following three commands are set in isearch-mode-map.
  66
  67 (defun isearch-toggle-korean-input-method ()
  68   (interactive)
  69   (let ((overriding-terminal-local-map nil))
  70     (toggle-korean-input-method))
  71   (setq isearch-input-method-function input-method-function
  72         isearch-input-method-local-p t)
  73   (setq input-method-function nil)
  74   (isearch-update))
  75
  76 (defun isearch-hangul-switch-symbol-ksc ()
  77   (interactive)
  78   (let ((overriding-terminal-local-map nil))
  79     (quail-hangul-switch-symbol-ksc))
  80   (setq isearch-input-method-function input-method-function
  81         isearch-input-method-local-p t)
  82   (setq input-method-function nil)
  83   (isearch-update))
  84
  85 (defun isearch-hangul-switch-hanja ()
  86   (interactive)
  87   (let ((overriding-terminal-local-map nil))
  88     (quail-hangul-switch-hanja))
  89   (setq isearch-input-method-function input-method-function
  90         isearch-input-method-local-p t)
  91   (setq input-method-function nil)
  92   (isearch-update))
  93
  94 ;; Information for setting and exiting Korean environment.
  95 (defvar korean-key-bindings
  96   `((global [?\S- ] toggle-korean-input-method nil)
  97     (global [C-f9] quail-hangul-switch-symbol-ksc nil)
  98     (global [f9]  quail-hangul-switch-hanja nil)
  99     (,isearch-mode-map [?\S- ] isearch-toggle-korean-input-method nil)
 100     (,isearch-mode-map [C-f9] isearch-hangul-switch-symbol-ksc nil)
 101     (,isearch-mode-map [f9] isearch-hangul-switch-hanja nil)))
 102
 103 ;;;###autoload
 104 (defun setup-korean-environment-internal ()
 105   (let ((key-bindings korean-key-bindings))
 106     (while key-bindings
 107       (let* ((this (car key-bindings))
 108              (key (nth 1 this))
 109              (new-def (nth 2 this))
 110              old-def)
 111         (if (eq (car this) 'global)
 112             (progn
 113               (setq old-def (global-key-binding key))
 114               (global-set-key key new-def))
 115           (setq old-def (lookup-key (car this) key))
 116           (define-key (car this) key new-def))
 117         (setcar (nthcdr 3 this) old-def))
 118       (setq key-bindings (cdr key-bindings)))))
 119
 120 (defun exit-korean-environment ()
 121   "Exit Korean language environment."
 122   (let ((key-bindings korean-key-bindings))
 123     (while key-bindings
 124       (let* ((this (car key-bindings))
 125              (key (nth 1 this))
 126              (new-def (nth 2 this))
 127              (old-def (nth 3 this)))
 128         (if (eq (car this) 'global)
 129             (if (eq (global-key-binding key) new-def)
 130                 (global-set-key key old-def))
 131           (if (eq (lookup-key (car this) key) new-def)
 132               (define-key (car this) key old-def))))
 133       (setq key-bindings (cdr key-bindings)))))
 134
 135 ;;
 136 (provide 'korea-util)
 137
 138 ;;; korea-util.el ends here