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182 lines
6.0 KiB
EmacsLisp
182 lines
6.0 KiB
EmacsLisp
;;; chinese.el --- Support for Chinese -*- coding: iso-2022-7bit; -*-
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;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
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;; Licensed to the Free Software Foundation.
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;; Keywords: multilingual, Chinese
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; For Chinese, three character sets GB2312, BIG5, and CNS11643 are
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;; supported.
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;;; Code:
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Chinese (general)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(make-coding-system
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'iso-2022-cn 2 ?C
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"ISO 2022 based 7bit encoding for Chinese GB and CNS (MIME:ISO-2022-CN)"
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'(ascii
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(nil chinese-gb2312 chinese-cns11643-1)
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(nil chinese-cns11643-2)
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nil
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nil ascii-eol ascii-cntl seven locking-shift single-shift nil nil nil
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init-bol)
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'((safe-charsets ascii chinese-gb2312 chinese-cns11643-1 chinese-cns11643-2)
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(mime-charset . iso-2022-cn)))
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(define-coding-system-alias 'chinese-iso-7bit 'iso-2022-cn)
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(make-coding-system
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'iso-2022-cn-ext 2 ?C
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"ISO 2022 based 7bit encoding for Chinese GB and CNS (MIME:ISO-2022-CN-EXT)"
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'(ascii
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(nil chinese-gb2312 chinese-cns11643-1)
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(nil chinese-cns11643-2)
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(nil chinese-cns11643-3 chinese-cns11643-4 chinese-cns11643-5
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chinese-cns11643-6 chinese-cns11643-7)
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nil ascii-eol ascii-cntl seven locking-shift single-shift nil nil nil
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init-bol)
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'((safe-charsets ascii chinese-gb2312 chinese-cns11643-1 chinese-cns11643-2
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chinese-cns11643-3 chinese-cns11643-4 chinese-cns11643-5
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chinese-cns11643-6 chinese-cns11643-7)
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(mime-charset . iso-2022-cn-ext)))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Chinese GB2312 (simplified)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(make-coding-system
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'chinese-iso-8bit 2 ?c
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"ISO 2022 based EUC encoding for Chinese GB2312 (MIME:CN-GB-2312)"
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'(ascii chinese-gb2312 nil nil
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nil ascii-eol ascii-cntl nil nil nil nil)
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'((safe-charsets ascii chinese-gb2312)
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(mime-charset . cn-gb-2312)))
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(define-coding-system-alias 'cn-gb-2312 'chinese-iso-8bit)
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(define-coding-system-alias 'euc-china 'chinese-iso-8bit)
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(define-coding-system-alias 'euc-cn 'chinese-iso-8bit)
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(make-coding-system
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'chinese-hz 0 ?z
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"Hz/ZW 7-bit encoding for Chinese GB2312 (MIME:HZ-GB-2312)"
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nil
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'((safe-charsets ascii chinese-gb2312)
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(mime-charset . hz-gb-2312)
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(post-read-conversion . post-read-decode-hz)
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(pre-write-conversion . pre-write-encode-hz)))
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(define-coding-system-alias 'hz-gb-2312 'chinese-hz)
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(define-coding-system-alias 'hz 'chinese-hz)
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(defun post-read-decode-hz (len)
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(let ((pos (point))
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(buffer-modified-p (buffer-modified-p))
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last-coding-system-used)
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(prog1
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(decode-hz-region pos (+ pos len))
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(set-buffer-modified-p buffer-modified-p))))
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(defun pre-write-encode-hz (from to)
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(let ((buf (current-buffer)))
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(set-buffer (generate-new-buffer " *temp*"))
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(if (stringp from)
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(insert from)
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(insert-buffer-substring buf from to))
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(let (last-coding-system-used)
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(encode-hz-region 1 (point-max)))
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nil))
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(set-language-info-alist
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"Chinese-GB" '((charset chinese-gb2312 chinese-sisheng)
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(coding-system chinese-iso-8bit iso-2022-cn chinese-hz)
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(coding-priority chinese-iso-8bit chinese-big5 iso-2022-cn)
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(input-method . "chinese-py-punct")
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(features china-util)
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(sample-text . "Chinese ($AVPND(B,$AFUM(;0(B,$A::So(B) $ADc:C(B")
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(documentation . "Support for Chinese GB2312 character set."))
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'("Chinese"))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Chinese BIG5 (traditional)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(make-coding-system
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'chinese-big5 3 ?B "BIG5 8-bit encoding for Chinese (MIME:CN-BIG5)"
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nil
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'((safe-charsets ascii chinese-big5-1 chinese-big5-2)
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(mime-charset . cn-big5)
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(charset-origin-alist (chinese-big5-1 "BIG5" encode-big5-char)
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(chinese-big5-2 "BIG5" encode-big5-char))))
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(define-coding-system-alias 'big5 'chinese-big5)
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(define-coding-system-alias 'cn-big5 'chinese-big5)
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;; Big5 font requires special encoding.
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(define-ccl-program ccl-encode-big5-font
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`(0
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;; In: R0:chinese-big5-1 or chinese-big5-2
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;; R1:position code 1
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;; R2:position code 2
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;; Out: R1:font code point 1
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;; R2:font code point 2
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((r2 = ((((r1 - ?\x21) * 94) + r2) - ?\x21))
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(if (r0 == ,(charset-id 'chinese-big5-2)) (r2 += 6280))
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(r1 = ((r2 / 157) + ?\xA1))
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(r2 %= 157)
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(if (r2 < ?\x3F) (r2 += ?\x40) (r2 += ?\x62))))
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"CCL program to encode a Big5 code to code point of Big5 font.")
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(setq font-ccl-encoder-alist
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(cons (cons "big5" ccl-encode-big5-font) font-ccl-encoder-alist))
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(set-language-info-alist
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"Chinese-BIG5" '((charset chinese-big5-1 chinese-big5-2)
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(coding-system chinese-big5 chinese-iso-7bit)
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(coding-priority chinese-big5 iso-2022-cn chinese-iso-8bit)
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(input-method . "chinese-py-punct-b5")
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(features china-util)
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(sample-text . "Cantonese ($(0GnM$(B,$(0N]0*Hd(B) $(0*/=((B, $(0+$)p(B")
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(documentation . "Support for Chinese Big5 character set."))
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'("Chinese"))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Chinese CNS11643 (traditional)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(set-language-info-alist
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"Chinese-CNS" '((charset chinese-cns11643-1 chinese-cns11643-2
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chinese-cns11643-3 chinese-cns11643-4
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chinese-cns11643-5 chinese-cns11643-6
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chinese-cns11643-7)
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(coding-system iso-2022-cn)
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(coding-priority iso-2022-cn chinese-big5 chinese-iso-8bit)
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(features china-util)
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(input-method . "chinese-cns-quick")
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(documentation . "Support for Chinese CNS character sets."))
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'("Chinese"))
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;;; chinese.el ends here
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