lisp/language/korea-util.el

   1 ;;; korea-util.el --- utilities for Korean
   2
   3 ;; Copyright (C) 1997, 1999, 2001-2013 Free Software Foundation, Inc.
   4 ;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   5 ;;   2007, 2008, 2009, 2010, 2011
   6 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
   7 ;;   Registration Number H14PRO021
   8
   9 ;; Keywords: mule, multilingual, Korean
  10
  11 ;; This file is part of GNU Emacs.
  12
  13 ;; GNU Emacs is free software: you can redistribute it and/or modify
  14 ;; it under the terms of the GNU General Public License as published by
  15 ;; the Free Software Foundation, either version 3 of the License, or
  16 ;; (at your option) any later version.
  17
  18 ;; GNU Emacs is distributed in the hope that it will be useful,
  19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 ;; GNU General Public License for more details.
  22
  23 ;; You should have received a copy of the GNU General Public License
  24 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  25
  26 ;;; Commentary:
  27
  28 ;;; Code:
  29
  30 ;;;###autoload
  31 (defvar default-korean-keyboard
  32    (purecopy (if (string-match "3" (or (getenv "HANGUL_KEYBOARD_TYPE") ""))
  33       "3"
  34     ""))
  35    "The kind of Korean keyboard for Korean input method.
  36 \"\" for 2, \"3\" for 3.")
  37
  38 ;; functions useful for Korean text input
  39
  40 (defun toggle-korean-input-method ()
  41   "Turn on or off a Korean text input method for the current buffer."
  42   (interactive)
  43   (if current-input-method
  44       (deactivate-input-method)
  45     (activate-input-method
  46      (concat "korean-hangul" default-korean-keyboard))))
  47
  48 (defun quail-hangul-switch-symbol-ksc (&rest ignore)
  49   "Swith to/from Korean symbol package."
  50   (interactive "i")
  51   (and current-input-method
  52        (if (string-equal current-input-method "korean-symbol")
  53            (activate-input-method (concat "korean-hangul"
  54                                           default-korean-keyboard))
  55          (activate-input-method "korean-symbol"))))
  56
  57 (defun quail-hangul-switch-hanja (&rest ignore)
  58   "Swith to/from Korean hanja package."
  59   (interactive "i")
  60   (and current-input-method
  61        (if (string-match "korean-hanja" current-input-method)
  62            (activate-input-method (concat "korean-hangul"
  63                                           default-korean-keyboard))
  64          (activate-input-method (concat "korean-hanja"
  65                                         default-korean-keyboard)))))
  66
  67 ;; The following three commands are set in isearch-mode-map.
  68
  69 (defun isearch-toggle-korean-input-method ()
  70   (interactive)
  71   (let ((overriding-terminal-local-map nil))
  72     (toggle-korean-input-method))
  73   (setq isearch-input-method-function input-method-function
  74         isearch-input-method-local-p t)
  75   (setq input-method-function nil)
  76   (isearch-update))
  77
  78 (defun isearch-hangul-switch-symbol-ksc ()
  79   (interactive)
  80   (let ((overriding-terminal-local-map nil))
  81     (quail-hangul-switch-symbol-ksc))
  82   (setq isearch-input-method-function input-method-function
  83         isearch-input-method-local-p t)
  84   (setq input-method-function nil)
  85   (isearch-update))
  86
  87 (defun isearch-hangul-switch-hanja ()
  88   (interactive)
  89   (let ((overriding-terminal-local-map nil))
  90     (quail-hangul-switch-hanja))
  91   (setq isearch-input-method-function input-method-function
  92         isearch-input-method-local-p t)
  93   (setq input-method-function nil)
  94   (isearch-update))
  95
  96 ;; Information for setting and exiting Korean environment.
  97 (defvar korean-key-bindings
  98   `((global [?\S- ] toggle-korean-input-method nil)
  99     (global [Hangul] toggle-korean-input-method nil)
 100     (global [C-f9] quail-hangul-switch-symbol-ksc nil)
 101     (global [f9] hangul-to-hanja-conversion nil)
 102     (global [Hangul_Hanja] hangul-to-hanja-conversion nil)
 103     (,isearch-mode-map [?\S- ] isearch-toggle-korean-input-method nil)
 104     (,isearch-mode-map [Hangul] isearch-toggle-korean-input-method nil)
 105     (,isearch-mode-map [C-f9] isearch-hangul-switch-symbol-ksc nil)
 106     (,isearch-mode-map [f9] isearch-hangul-switch-hanja nil)))
 107
 108 ;;;###autoload
 109 (defun setup-korean-environment-internal ()
 110   (use-cjk-char-width-table 'ko_KR)
 111   (let ((key-bindings korean-key-bindings))
 112     (while key-bindings
 113       (let* ((this (car key-bindings))
 114              (key (nth 1 this))
 115              (new-def (nth 2 this))
 116              old-def)
 117         (if (eq (car this) 'global)
 118             (progn
 119               (setq old-def (global-key-binding key))
 120               (global-set-key key new-def))
 121           (setq old-def (lookup-key (car this) key))
 122           (define-key (car this) key new-def))
 123         (setcar (nthcdr 3 this) old-def))
 124       (setq key-bindings (cdr key-bindings)))))
 125
 126 (defun exit-korean-environment ()
 127   "Exit Korean language environment."
 128   (use-default-char-width-table)
 129   (let ((key-bindings korean-key-bindings))
 130     (while key-bindings
 131       (let* ((this (car key-bindings))
 132              (key (nth 1 this))
 133              (new-def (nth 2 this))
 134              (old-def (nth 3 this)))
 135         (if (eq (car this) 'global)
 136             (if (eq (global-key-binding key) new-def)
 137                 (global-set-key key old-def))
 138           (if (eq (lookup-key (car this) key) new-def)
 139               (define-key (car this) key old-def))))
 140       (setq key-bindings (cdr key-bindings)))))
 141
 142 ;;
 143 (provide 'korea-util)
 144
 145 ;;; korea-util.el ends here