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;;; chinese.el --- Support for Chinese
;; Copyright (C) 1995 Free Software Foundation, Inc.
;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
;; Keywords: multilingual, Chinese
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs; 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 Chinese, three character sets GB2312, BIG5, and CNS11643 are
;; supported.
;;; Code:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Chinese (general)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(make-coding-system
'chinese-iso-7bit 2 ?C
"ISO 2022 based 7bit encoding for Chinese GB and CNS (MIME:ISO-2022-CN)"
'(ascii
(nil chinese-gb2312 chinese-cns11643-1)
(nil chinese-cns11643-2)
(nil chinese-cns11643-3 chinese-cns11643-4 chinese-cns11643-5
chinese-cns11643-6 chinese-cns11643-7)
nil ascii-eol ascii-cntl seven locking-shift single-shift nil nil nil
init-bol))
(define-coding-system-alias 'chinese-iso-7bit 'iso-2022-cn)
(define-coding-system-alias 'chinese-iso-7bit 'iso-2022-cn-ext)
(define-prefix-command 'describe-chinese-environment-map)
(define-key-after describe-language-environment-map [Chinese]
'("Chinese" . describe-chinese-environment-map)
t)
(define-prefix-command 'setup-chinese-environment-map)
(define-key-after setup-language-environment-map [Chinese]
'("Chinese" . setup-chinese-environment-map)
t)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Chinese GB2312 (simplified)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(make-coding-system
'chinese-iso-8bit 2 ?c
"ISO 2022 based EUC encoding for Chinese GB2312 (MIME:CN-GB-2312)"
'((ascii t) chinese-gb2312 chinese-sisheng nil
nil ascii-eol ascii-cntl nil nil single-shift nil))
(define-coding-system-alias 'chinese-iso-8bit 'cn-gb-2312)
(define-coding-system-alias 'chinese-iso-8bit 'euc-china)
(make-coding-system
'chinese-hz 0 ?z
"Hz/ZW 7-bit encoding for Chinese GB2312 (MIME:HZ-GB-2312)"
nil)
(put 'chinese-hz 'post-read-conversion 'post-read-decode-hz)
(put 'chinese-hz 'pre-write-conversion 'pre-write-encode-hz)
(define-coding-system-alias 'chinese-hz 'hz-gb-2312)
(define-coding-system-alias 'chinese-hz 'hz)
(defun post-read-decode-hz (len)
(let ((pos (point)))
(decode-hz-region pos (+ pos len))))
(defun pre-write-encode-hz (from to)
(let ((buf (current-buffer))
(work (get-buffer-create " *pre-write-encoding-work*")))
(set-buffer work)
(erase-buffer)
(if (stringp from)
(insert from)
(insert-buffer-substring buf from to))
(encode-hz-region 1 (point-max))
nil))
(register-input-method
"Chinese-GB" '("quail-ccdospy" quail-use-package "quail/ccdospy"))
(register-input-method
"Chinese-GB" '("quail-ctlau" quail-use-package "quail/ctlau"))
(register-input-method
"Chinese-GB" '("quail-punct" quail-use-package "quail/punct"))
(register-input-method
"Chinese-GB" '("quail-qj" quail-use-package "quail/qj"))
(register-input-method
"Chinese-GB" '("quail-sw" quail-use-package "quail/sw"))
(register-input-method
"Chinese-GB" '("quail-ziranma" quail-use-package "quail/ziranma"))
(register-input-method
"Chinese-GB" '("quail-tonepy" quail-use-package "quail/tonepy"))
(register-input-method
"Chinese-GB" '("quail-py" quail-use-package "quail/py"))
(set-language-info-alist
"Chinese-GB" '((setup-function . (setup-chinese-gb-environment
. setup-chinese-environment-map))
(charset . (chinese-gb2312 chinese-sisheng))
(coding-system
. (chinese-iso-8bit chinese-iso-7bit chinese-hz))
(sample-text . "Chinese ($AVPND(B,$AFUM(;0(B,$A::So(B) $ADc:C(B")
(documentation . ("Support for Chinese GB2312 character set."
. describe-chinese-environment-map))
))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Chinese BIG5 (traditional)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(make-coding-system
'chinese-big5 3 ?B "BIG5 8-bit encoding for Chinese (MIME:CN-BIG5)")
(define-coding-system-alias 'chinese-big5 'big5)
(define-coding-system-alias 'chinese-big5 'cn-big5)
;; Big5 font requires special encoding.
(define-ccl-program ccl-encode-big5-font
`(0
;; In: R0:chinese-big5-1 or chinese-big5-2
;; R1:position code 1
;; R2:position code 2
;; Out: R1:font code point 1
;; R2:font code point 2
((r2 = ((((r1 - ?\x21) * 94) + r2) - ?\x21))
(if (r0 == ,(charset-id 'chinese-big5-2)) (r2 += 6280))
(r1 = ((r2 / 157) + ?\xA1))
(r2 %= 157)
(if (r2 < ?\x3F) (r2 += ?\x40) (r2 += ?\x62))))
"CCL program to encode a Big5 code to code point of Big5 font.")
(setq font-ccl-encoder-alist
(cons (cons "big5" ccl-encode-big5-font) font-ccl-encoder-alist))
(register-input-method
"Chinese-BIG5" '("quail-qj-b5" quail-use-package "quail/qj-b5"))
(register-input-method
"Chinese-BIG5" '("quail-zozy" quail-use-package "quail/zozy"))
(register-input-method
"Chinese-BIG5" '("quail-tsangchi-b5" quail-use-package "quail/tsangchi-b5"))
(register-input-method
"Chinese-BIG5" '("quail-py-b5" quail-use-package "quail/py-b5"))
(register-input-method
"Chinese-BIG5" '("quail-quick-b5" quail-use-package "quail/quick-bt"))
(register-input-method
"Chinese-BIG5" '("quail-etzy" quail-use-package "quail/etzy"))
(register-input-method
"Chinese-BIG5" '("quail-ecdict" quail-use-package "quail/ecdict"))
(register-input-method
"Chinese-BIG5" '("quail-ctlaub" quail-use-package "quail/ctlaub"))
(register-input-method
"Chinese-BIG5" '("quail-array30" quail-use-package "quail/array30"))
(register-input-method
"Chinese-BIG5" '("quail-4corner" quail-use-package "quail/4corner"))
(set-language-info-alist
"Chinese-BIG5" '((setup-function . (setup-chinese-big5-environment
. setup-chinese-environment-map))
(charset . (chinese-big5-1 chinese-big5-2))
(coding-system . (chinese-big5 chinese-iso-7bit))
(sample-text . "Cantonese ($(0GnM$(B,$(0N]0*Hd(B) $(0*/=((B, $(0+$)p(B")
(documentation . ("Support for Chinese Big5 character set."
. describe-chinese-environment-map))
))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Chinese CNS11643 (traditional)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(register-input-method
"Chinese-CNS" '("quail-quick-cns" quail-use-package "quail/quick-cns"))
(register-input-method
"Chinese-CNS" '("quail-tsangchi-cns" quail-use-package "quail/tsangchi-cns"))
(set-language-info-alist
"Chinese-CNS" '((setup-function . (setup-chinese-cns-environment
. setup-chinese-environment-map))
(charset . (chinese-cns11643-1 chinese-cns11643-2
chinese-cns11643-3 chinese-cns11643-4
chinese-cns11643-5 chinese-cns11643-6
chinese-cns11643-7))
(coding-system . (chinese-iso-7bit))
(documentation . ("Support for Chinese CNS character sets."
. describe-chinese-environment-map))
))
;;; chinese.el ends here
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