--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/language/japanese.el	Mon Aug 13 09:41:43 2007 +0200
@@ -0,0 +1,302 @@
+;;; japanese.el --- Japanese support
+
+;; Copyright (C) 1995 Free Software Foundation, Inc.
+;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
+;; Copyright (C) 1997 MORIOKA Tomohiko
+
+;; Keywords: multilingual, Japanese
+
+;; This file is part of XEmacs.
+
+;; XEmacs 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 2, or (at your option)
+;; any later version.
+
+;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the Free
+;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Commentary:
+
+;; For Japanese, character sets JISX0201, JISX0208, JISX0212 are
+;; supported.
+
+;;; Code:
+
+;;; Syntax of Japanese characters.
+(modify-syntax-entry 'katakana-jisx0201 "w")
+(modify-syntax-entry 'japanese-jisx0212 "w")
+
+(modify-syntax-entry 'japanese-jisx0208 "w")
+(loop for row in '(33 34 40)
+      do (modify-syntax-entry `[japanese-jisx0208 ,row] "_"))
+(loop for char in '(?$B!<(B ?$B!+(B ?$B!,(B ?$B!3(B ?$B!4(B ?$B!5(B ?$B!6(B ?$B!7(B ?$B!8(B ?$B!9(B ?$B!:(B ?$B!;(B)
+      do (modify-syntax-entry char "w"))
+(modify-syntax-entry ?\$B!J(B "($B!K(B")
+(modify-syntax-entry ?\$B!N(B "($B!O(B")
+(modify-syntax-entry ?\$B!P(B "($B!Q(B")
+(modify-syntax-entry ?\$B!V(B "($B!W(B")
+(modify-syntax-entry ?\$B!X(B "($B!Y(B")
+(modify-syntax-entry ?\$B!K(B ")$B!J(B")
+(modify-syntax-entry ?\$B!O(B ")$B!N(B")
+(modify-syntax-entry ?\$B!Q(B ")$B!P(B")
+(modify-syntax-entry ?\$B!W(B ")$B!V(B")
+(modify-syntax-entry ?\$B!Y(B ")$B!X(B")
+
+;;; Character categories S, A, H, K, G, Y, and C
+(define-category ?S "Japanese 2-byte symbol character.")
+(modify-category-entry [japanese-jisx0208 33] ?S)
+(modify-category-entry [japanese-jisx0208 34] ?S)
+(modify-category-entry [japanese-jisx0208 40] ?S)
+(define-category ?A "Japanese 2-byte Alphanumeric character.")
+(modify-category-entry [japanese-jisx0208 35] ?A)
+(define-category ?H "Japanese 2-byte Hiragana character.")
+(modify-category-entry [japanese-jisx0208 36] ?H)
+(define-category ?K "Japanese 2-byte Katakana character.")
+(modify-category-entry [japanese-jisx0208 37] ?K)
+(define-category ?G "Japanese 2-byte Greek character.")
+(modify-category-entry [japanese-jisx0208 38] ?G)
+(define-category ?Y "Japanese 2-byte Cyrillic character.")
+(modify-category-entry [japanese-jisx0208 39] ?Y)
+(define-category ?C "Japanese 2-byte Kanji characters.")
+(loop for row from 48 to 126
+      do (modify-category-entry `[japanese-jisx0208 ,row] ?C))
+(loop for char in '(?$B!<(B ?$B!+(B ?$B!,(B)
+      do (modify-category-entry char ?K)
+         (modify-category-entry char ?H))
+(loop for char in '(?$B!3(B ?$B!4(B ?$B!5(B ?$B!6(B ?$B!7(B ?$B!8(B ?$B!9(B ?$B!:(B ?$B!;(B)
+      do (modify-category-entry char ?C))
+(modify-category-entry 'japanese-jisx0212 ?C)
+
+(defvar japanese-word-regexp
+  "\\cA+\\cH*\\|\\cK+\\cH*\\|\\cC+\\cH*\\|\\cH+\\|\\ck+\\|\\sw+"
+  "Regular expression used to match a Japanese word.")
+
+(set-word-regexp japanese-word-regexp)
+(setq forward-word-regexp  "\\w\\>")
+(setq backward-word-regexp "\\<\\w")
+
+;;; Paragraph setting
+(setq sentence-end
+      (concat
+       "\\("
+       "\\("
+       "[.?!][]\"')}]*"
+       "\\|"
+       "[$B!%!)!*(B][$B!O!I!G!K!Q!M!S!U!W!Y(B]*"
+       "\\)"
+       "\\($\\|\t\\|  \\)"
+       "\\|"
+       "$B!#(B"
+       "\\)"
+       "[ \t\n]*"))
+(setq paragraph-start    "^[ $B!!(B\t\n\f]")
+(setq paragraph-separate "^[ $B!!(B\t\f]*$")
+
+;; EGG specific setup
+(define-egg-environment 'japanese
+  "Japanese settings for egg."
+  (lambda ()
+    (when (not (featurep 'egg-jpn))
+      (load "its/its-hira")
+      (load "its/its-kata")
+      (load "its/its-hankaku")
+      (load "its/its-zenkaku")
+      (setq its:*standard-modes*
+	    (append
+	     (list (its:get-mode-map "roma-kana")
+		   (its:get-mode-map "roma-kata")
+		   (its:get-mode-map "downcase")
+		   (its:get-mode-map "upcase")
+		   (its:get-mode-map "zenkaku-downcase")
+		   (its:get-mode-map "zenkaku-upcase"))
+	     its:*standard-modes*))
+      (provide 'egg-jpn))
+    (setq wnn-server-type 'jserver)
+    (setq egg-default-startup-file "eggrc-wnn")
+    (setq-default its:*current-map* (its:get-mode-map "roma-kana"))))
+
+;; stuff for providing gramatic processing of Japanese text
+;; something like this should probably be created for all environments...
+
+(defvar aletter (concat "\\(" ascii-char "\\|" kanji-char "\\)"))
+(defvar kanji-space-insertable (concat 
+	   "$B!"(B" aletter                   "\\|"
+	   "$B!#(B" aletter                   "\\|"
+	   aletter "$B!J(B"                   "\\|"
+	   "$B!K(B" aletter                   "\\|"
+	   ascii-alphanumeric  kanji-kanji-char "\\|"
+	   kanji-kanji-char    ascii-alphanumeric ))
+
+(defvar space-insertable (concat " " aletter "\\|" kanji-space-insertable)
+  "Regexp for finding points that can have spaces inserted into them for justification")
+
+;; (define-coding-system-alias 'iso-2022-7 'iso-2022-jp)
+;; (define-coding-system-alias 'iso-2022-7 'junet)
+
+(make-coding-system
+ 'iso-2022-jp 'iso2022
+ "Coding-system used for communication with mail and news in Japan."
+ '(charset-g0 ascii
+   short t
+   seven t
+   input-charset-conversion ((latin-jisx0201 ascii)
+			     (japanese-jisx0208-1978 japanese-jisx0208))
+   mnemonic "MULE/7bit"
+   ))
+
+(copy-coding-system 'iso-2022-jp 'junet)
+
+;; (make-coding-system
+;;  'shift_jis 1 ?S
+;;  "Coding-system of Shift-JIS used in Japan." t)
+
+(make-coding-system
+ 'shift_jis 'shift-jis
+ "Coding-system of Shift-JIS used in Japan."
+ '(mnemonic "Ja/SJIS"))
+
+;;(define-coding-system-alias 'shift_jis 'sjis)
+
+(copy-coding-system 'shift_jis 'sjis)
+
+;; (make-coding-system
+;;  'iso-2022-jp-1978-irv 2 ?J
+;;  "Coding-system used for old jis terminal."
+;;  '((ascii t) nil nil nil
+;;    short ascii-eol ascii-cntl seven nil nil use-roman use-oldjis))
+
+(make-coding-system
+ 'iso-2022-jp-1978-irv 'iso2022
+ "Coding-system used for old JIS terminal."
+ '(charset-g0 ascii
+   short t
+   seven t
+   output-charset-conversion ((ascii latin-jisx0201)
+			      (japanese-jisx0208 japanese-jisx0208-1978))
+   mnemonic "Ja-78/7bit"
+   ))
+
+;;(define-coding-system-alias 'iso-2022-jp-1978-irv 'old-jis)
+
+(copy-coding-system 'iso-2022-jp-1978-irv 'old-jis)
+
+;; (make-coding-system
+;;  'euc-japan-1990 2 ?E
+;;  "Coding-system of Japanese EUC (Extended Unix Code)."
+;;  '(ascii japanese-jisx0208 katakana-jisx0201 japanese-jisx0212
+;;          short ascii-eol ascii-cntl nil nil single-shift))
+
+(make-coding-system
+ 'euc-jp 'iso2022
+ "Coding-system of Japanese EUC (Extended Unix Code)."
+ '(charset-g0 ascii
+   charset-g1 japanese-jisx0208
+   charset-g2 katakana-jisx0201
+   charset-g3 japanese-jisx0212
+   short t
+   mnemonic "Ja/EUC"
+   ))
+
+;;(define-coding-system-alias 'euc-japan-1990 'euc-japan)
+
+(copy-coding-system 'euc-jp 'euc-japan) ; only for w3
+(copy-coding-system 'euc-jp 'japanese-euc)
+
+(register-input-method
+ "Japanese" '("quail-ja-hiragana" quail-use-package "quail/japanese"))
+(register-input-method
+ "Japanese" '("quail-ja" quail-use-package "quail/japanese"))
+
+(defun setup-japanese-environment ()
+  "Setup multilingual environment (MULE) for Japanese."
+  (interactive)
+  (setq coding-category-iso-8-2 'euc-jp)
+
+  (set-coding-priority
+   '(coding-category-iso-7
+     coding-category-iso-8-2
+     coding-category-sjis
+     coding-category-iso-8-1
+     coding-category-iso-else
+     coding-category-internal))
+
+  (if (eq system-type 'ms-dos)
+      (progn
+	(setq-default buffer-file-coding-system 'shift_jis)
+	(set-terminal-coding-system 'shift_jis)
+	(set-keyboard-coding-system 'shift_jis)
+	(setq default-process-coding-system '(shift_jis-dos . shift_jis-dos)))
+    (setq-default buffer-file-coding-system 'iso-2022-jp)
+    (set-terminal-coding-system 'iso-2022-jp)
+    (set-keyboard-coding-system 'iso-2022-jp))
+
+  (set-default-input-method "Japanese" "quail-ja")
+
+  (setq sendmail-coding-system 'iso-2022-jp
+	rmail-file-coding-system 'iso-2022-jp)
+  )
+
+(defun describe-japanese-support ()
+  "Describe how Emacs supports Japanese."
+  (interactive)
+  (describe-language-support-internal "Japanese"))
+
+(set-language-info-alist
+ "Japanese" '((setup-function . setup-japanese-environment)
+	      (describe-function . describe-japanese-support)
+	      (tutorial . "TUTORIAL.jp")
+	      (charset . (japanese-jisx0208 japanese-jisx0208-1978
+			  japanese-jisx0212 latin-jisx0201
+			  katakana-jisx0201))
+	      (coding-system . (euc-jp shift_jis
+				iso-2022-jp iso-2022-jp-1978-irv))
+	      (sample-text . "Japanese ($BF|K\8l(B)		$B$3$s$K$A$O(B, (I:]FAJ(B")
+	      (documentation . nil)))
+
+;; for XEmacs (will be obsoleted)
+
+(define-language-environment 'japanese
+  "Japanese (includes JIS and EUC)"
+  (lambda ()
+    (set-coding-category-system 'iso-7   'iso-2022-jp)
+    (set-coding-category-system 'iso-8-2 'euc-jp)
+    (set-coding-priority-list '(iso-7 iso-8-2 shift-jis no-conversion))
+    ;;'(iso-8-2 iso-8-designate iso-8-1 shift-jis big5)
+    
+    ;; Added by mrb, who doesn't speak japanese - so be sceptical...
+    ;; (when (string-match "solaris\\|sunos" system-configuration)
+    ;;(set-native-coding-system          'euc-japan) ; someday
+    (set-pathname-coding-system 'euc-jp)
+    (add-hook 'comint-exec-hook
+              (lambda ()
+                (let ((proc (get-buffer-process (current-buffer))))
+                  (set-process-input-coding-system  proc 'euc-jp)
+                  (set-process-output-coding-system proc 'euc-jp))))
+    ;;(set-buffer-file-coding-system-for-read 'automatic-conversion)
+    (set-default-buffer-file-coding-system  'euc-jp)
+    (setq keyboard-coding-system            'euc-jp)
+    (setq terminal-coding-system            'euc-jp)
+    (when (eq 'x (device-type (selected-device)))
+      (x-use-halfwidth-roman-font 'japanese-jisx0208 "jisx0201"))
+    
+    (when (eq system-type 'ms-dos)
+      ;; Shift-JIS is the standard coding system under Japanese MS-DOS
+      ;; This isn't really code - just a hint to future implementors
+      (setq keyboard-coding-system           'shift_jis-dos)
+      (setq terminal-coding-system           'shift_jis-dos)
+      (set-default-buffer-file-coding-system 'shift_jis-dos)
+      ;;(set-default-process-coding-system 'shift_jis-dos 'shift_jis-dos)
+      )
+    ))
+
+(set-coding-category-system 'shift-jis 'shift_jis)
+
+;;; japanese.el ends here