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;;; chinese.el --- support for Chinese -*- coding: utf-8; lexical-binding: t; -*-
;; Copyright (C) 2001-2025 Free Software Foundation, Inc.
;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
;; 2005, 2006, 2007, 2008, 2009, 2010, 2011
;; National Institute of Advanced Industrial Science and Technology (AIST)
;; Registration Number H14PRO021
;; Copyright (C) 2003
;; National Institute of Advanced Industrial Science and Technology (AIST)
;; Registration Number H13PRO009
;; 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 3 of the License, 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. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; For Chinese, three character sets GB2312, BIG5, and CNS11643 are
;; supported.
;;; Code:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Chinese (general)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-coding-system 'iso-2022-cn
"ISO 2022 based 7bit encoding for Chinese GB and CNS (MIME:ISO-2022-CN)."
:coding-type 'iso-2022
:mnemonic ?C
:charset-list '(ascii chinese-gb2312 chinese-cns11643-1 chinese-cns11643-2)
:designation [ascii
(nil chinese-gb2312 chinese-cns11643-1)
(nil chinese-cns11643-2)
nil]
:flags '(ascii-at-eol ascii-at-cntl 7-bit
designation locking-shift single-shift init-at-bol)
:mime-charset 'iso-2022-cn
:suitable-for-keyboard t)
(define-coding-system-alias 'chinese-iso-7bit 'iso-2022-cn)
(define-coding-system 'iso-2022-cn-ext
"ISO 2022 based 7bit encoding for Chinese GB and CNS (MIME:ISO-2022-CN-EXT)."
:coding-type 'iso-2022
:mnemonic ?C
:charset-list '(ascii
chinese-gb2312 chinese-cns11643-1
chinese-cns11643-2 chinese-cns11643-3 chinese-cns11643-4
chinese-cns11643-5 chinese-cns11643-6 chinese-cns11643-7)
:designation '[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)]
:flags '(ascii-at-eol ascii-at-cntl 7-bit
designation locking-shift single-shift init-at-bol)
:mime-charset 'iso-2022-cn-ext
:suitable-for-keyboard t)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Chinese GB2312 (simplified)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-coding-system 'chinese-iso-8bit
"ISO 2022 based EUC encoding for Chinese GB2312 (MIME:GB2312)."
:coding-type 'iso-2022
:mnemonic ?c
:charset-list '(ascii chinese-gb2312)
:designation [ascii chinese-gb2312 nil nil]
:mime-charset 'gb2312)
(define-coding-system-alias 'cn-gb-2312 'chinese-iso-8bit)
(define-coding-system-alias 'euc-china 'chinese-iso-8bit)
(define-coding-system-alias 'euc-cn 'chinese-iso-8bit)
(define-coding-system-alias 'cn-gb 'chinese-iso-8bit)
(define-coding-system-alias 'gb2312 'chinese-iso-8bit)
(define-coding-system 'chinese-hz
"Hz/ZW 7-bit encoding for Chinese GB2312 (MIME:HZ-GB-2312)."
:coding-type 'utf-8
:mnemonic ?z
:charset-list '(ascii chinese-gb2312)
:mime-charset 'hz-gb-2312
:post-read-conversion 'post-read-decode-hz
:pre-write-conversion 'pre-write-encode-hz)
(define-coding-system-alias 'hz-gb-2312 'chinese-hz)
(define-coding-system-alias 'hz 'chinese-hz)
;; FIXME: 'define-coding-system' automatically sets :ascii-compatible-p,
;; to any encoding whose :coding-type is 'utf-8', but UTF-7 is not ASCII
;; compatible, so we override that here (bug#40407).
(coding-system-put 'chinese-hz :ascii-compatible-p nil)
(set-language-info-alist
"Chinese-GB" '((charset chinese-gb2312 chinese-sisheng)
(iso639-language . zh)
(cjk-locale-symbol . zh_CN)
(setup-function . (lambda ()
(use-cjk-char-width-table 'zh_CN)))
(exit-function . use-default-char-width-table)
(coding-system chinese-iso-8bit iso-2022-cn chinese-hz)
(coding-priority chinese-iso-8bit chinese-gbk chinese-big5
iso-2022-cn)
(input-method . "chinese-py-punct")
(features china-util)
(sample-text . "Chinese (中文,普通话,汉语) 你好")
(documentation . "Support for Chinese GB2312 character set.")
(tutorial . "TUTORIAL.cn"))
'("Chinese"))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Chinese BIG5 (traditional)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-coding-system 'chinese-big5
"BIG5 8-bit encoding for Chinese (MIME:Big5)"
:coding-type 'big5
:mnemonic ?B
:charset-list '(ascii big5)
:mime-charset 'big5)
(define-coding-system-alias 'big5 'chinese-big5)
(define-coding-system-alias 'cn-big5 'chinese-big5)
(define-coding-system-alias 'cp950 'chinese-big5)
(set-language-info-alist
"Chinese-BIG5" '((charset chinese-big5-1 chinese-big5-2)
(iso639-language . zh)
(cjk-locale-symbol . zh_HK)
(setup-function . (lambda ()
(use-cjk-char-width-table 'zh_HK)))
(exit-function . use-default-char-width-table)
(coding-system chinese-big5 chinese-iso-7bit)
(coding-priority chinese-big5 iso-2022-cn chinese-iso-8bit
chinese-gbk)
(input-method . "chinese-py-punct-b5")
(ctext-non-standard-encodings "big5-0")
(features china-util)
(sample-text . "Cantonese (粵語,廣東話) 早晨, 你好")
(documentation . "Support for Chinese Big5 character set.")
(tutorial . "TUTORIAL.zh"))
'("Chinese"))
(define-coding-system 'chinese-big5-hkscs
"BIG5-HKSCS 8-bit encoding for Chinese, Hong Kong supplement (MIME:Big5-HKSCS)"
:coding-type 'charset
:mnemonic ?B
:charset-list '(ascii big5-hkscs)
:mime-charset 'big5-hkscs)
(define-coding-system-alias 'big5-hkscs 'chinese-big5-hkscs)
(define-coding-system-alias 'cn-big5-hkscs 'chinese-big5-hkscs)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Chinese CNS11643 (traditional)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-coding-system 'euc-tw
"ISO 2022 based EUC encoding for Chinese CNS11643."
:coding-type 'iso-2022
:mnemonic ?Z
:charset-list '(ascii
chinese-cns11643-1
chinese-cns11643-2
chinese-cns11643-3
chinese-cns11643-4
chinese-cns11643-5
chinese-cns11643-6
chinese-cns11643-7)
:designation [ascii chinese-cns11643-1 (chinese-cns11643-1
chinese-cns11643-2
chinese-cns11643-3
chinese-cns11643-4
chinese-cns11643-5
chinese-cns11643-6
chinese-cns11643-7) nil]
:mime-charset 'euc-tw)
(define-coding-system-alias 'euc-taiwan 'euc-tw)
(set-language-info-alist
"Chinese-CNS" '((charset chinese-cns11643-1 chinese-cns11643-2
chinese-cns11643-3 chinese-cns11643-4
chinese-cns11643-5 chinese-cns11643-6
chinese-cns11643-7)
(iso639-language . zh)
(cjk-locale-symbol . zh_TW)
(setup-function . (lambda ()
(use-cjk-char-width-table 'zh_TW)))
(exit-function . use-default-char-width-table)
(coding-system iso-2022-cn euc-tw)
(coding-priority iso-2022-cn euc-tw chinese-big5
chinese-iso-8bit chinese-gbk)
(features china-util)
(input-method . "chinese-cns-quick")
;; Fixme: presumably it won't accept big5 now.
(documentation . "\
Support for Chinese CNS character sets. Note that the EUC-TW coding system
accepts Big5 for input also (which is then converted to CNS)."))
'("Chinese"))
(set-language-info-alist
"Chinese-EUC-TW" '((charset chinese-cns11643-1 chinese-cns11643-2
chinese-cns11643-3 chinese-cns11643-4
chinese-cns11643-5 chinese-cns11643-6
chinese-cns11643-7 chinese-big5-1 chinese-big5-2)
(iso639-language . zh)
(cjk-locale-symbol . zh_TW)
(setup-function . (lambda ()
(use-cjk-char-width-table 'zh_TW)))
(exit-function . use-default-char-width-table)
(coding-system euc-tw iso-2022-cn)
(coding-priority euc-tw chinese-big5 iso-2022-cn
chinese-iso-8bit chinese-gbk)
(features china-util)
(input-method . "chinese-cns-quick")
(documentation . "\
Support for Chinese, preferring the EUC-TW character set. Note that
the EUC-TW coding system accepts Big5 for input also (which is then
converted to CNS)."))
'("Chinese"))
;;; Chinese GBK
(define-coding-system 'chinese-gbk
"GBK encoding for Chinese (MIME:GBK)."
:coding-type 'charset
:mnemonic ?c
:charset-list '(ascii chinese-gbk)
:mime-charset 'gbk)
(define-coding-system-alias 'gbk 'chinese-gbk)
(define-coding-system-alias 'cp936 'chinese-gbk)
(define-coding-system-alias 'windows-936 'chinese-gbk)
(set-language-info-alist
"Chinese-GBK" '((charset chinese-gbk)
(iso639-language . zh)
(cjk-locale-symbol . zh_CN)
(setup-function . (lambda ()
(use-cjk-char-width-table 'zh_CN)))
(exit-function . use-default-char-width-table)
(coding-system chinese-gbk)
(coding-priority gbk iso-2022-cn chinese-big5
chinese-iso-8bit) ; fixme?
(ctext-non-standard-encodings "gbk-0")
(input-method . "chinese-py-punct") ; fixme?
(sample-text . "Chinese (中文,普通话,汉语) 妳好")
(features china-util)
(documentation . "Support for Chinese GBK character set.")
(tutorial . "TUTORIAL.cn"))
'("Chinese"))
;;; Chinese GB18030
(define-coding-system 'chinese-gb18030
"GB18030 encoding for Chinese (MIME:GB18030)."
:coding-type 'charset
:mnemonic ?c
:charset-list '(ascii gb18030-2-byte
gb18030-4-byte-bmp gb18030-4-byte-smp
gb18030-4-byte-ext-1 gb18030-4-byte-ext-2)
:mime-charset 'gb18030)
(define-coding-system-alias 'gb18030 'chinese-gb18030)
(set-language-info-alist
"Chinese-GB18030" '((charset gb18030)
(iso639-language . zh)
(coding-system chinese-gb18030)
(coding-priority gb18030 gbk iso-2022-cn chinese-big5
chinese-iso-8bit) ; fixme?
(input-method . "chinese-py-punct") ; fixme?
(sample-text . "Chinese (中文,普通话,汉语) 你好")
(features china-util)
(documentation
. "Support for Chinese GB18030 character set.")
(tutorial . "TUTORIAL.cn"))
'("Chinese"))
;; Fixme: add HKSCS
(provide 'chinese)
;;; chinese.el ends here
|
