;;; cjk-enc.el --- provide a coding system for LaTeX2e CJK package
;; Copyright (C) 1996, 1998 Electrotechnical Laboratory, JAPAN.
;; Author: Kenichi HANDA <handa@etl.go.jp>
;; Werner LEMBERG <wl@gnu.org>
;; Keywords: CJK package, LaTeX2e, mule
;; This program 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.
;; This program 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, 675 Mass Ave, Cambridge, MA 02139, USA.
;;
;; CJK Version 4.8.5 (16-Oct-2021)
;;
;;; Code
;; The following tables map from Mule's internal encoding to LaTeX2e
;; macros. Note that not all macros defined here really do exist. See
;; MULEenc.sty and cjk-enc.txt for further details.
;;
;; The active TeX character 0x80 is defined as a multiplex command which
;; executes its first argument. To make the macro expansion robust
;; against \uppercase and \lowercase, numbers are used as parameters which
;; index the various commands.
;;
;; 0xFF will be used as a parameter delimiting character.
(defconst cjk-latin-1
[;0xa0
"99\177" "1\177" "2\177" "3\177"
"4\177" "5\177" "6\177" "7\177"
"8\177\\ " "9\177" "10\177" "11\177"
"12\177" "0\177-{}" "14\177" "15\177\\ "
; 0xb0
"16\177" "17\177" "18\177" "19\177"
"20\177\\ " "21\177" "22\177" "23\177"
"24\177\\ " "25\177" "26\177" "27\177"
"28\177" "29\177" "30\177" "31\177"
; 0xc0
"32\177A" "20\177A" "33\177A" "34\177A"
"8\177A" "0\177\\AA" "0\177\\AE" "24\177C"
"32\177E" "20\177E" "33\177E" "8\177E"
"32\177I" "20\177I" "33\177I" "8\177I"
; 0xd0
"0\177\\DJ" "34\177N" "32\177O" "20\177O"
"33\177O" "34\177O" "8\177O" "38\177"
"0\177\\O" "32\177U" "20\177U" "33\177U"
"8\177U" "20\177Y" "0\177\\TH" "0\177\\ss"
; 0xe0
"32\177a" "20\177a" "33\177a" "34\177a"
"8\177a" "0\177\\aa" "0\177\\ae" "24\177c"
"32\177e" "20\177e" "33\177e" "8\177e"
"32\177\\i" "20\177\\i" "33\177\\i" "8\177\\i"
; 0xf0
"0\177\\dj" "34\177n" "32\177o" "20\177o"
"33\177o" "34\177o" "8\177o" "45\177"
"0\177\\o" "32\177u" "20\177u" "33\177u"
"8\177u" "20\177y" "0\177\\th" "8\177y"
])
(defconst cjk-latin-2
[; 0xa0
"99\177" "48\177A" "49\177\\ " "0\177\\L"
"4\177" "51\177L" "20\177S" "7\177"
"8\177\\ " "51\177S" "24\177S" "51\177T"
"20\177Z" "0\177-{}" "51\177Z" "52\177Z"
; 0xb0
"16\177" "48\177a" "48\177\\ " "0\177\\l"
"20\177\\ " "51\177l" "20\177s" "51\177\\ "
"24\177\\ " "51\177s" "24\177s" "51\177t"
"20\177z" "55\177\\ " "51\177z" "52\177z"
; 0xc0
"20\177R" "20\177A" "33\177A" "49\177A"
"8\177A" "20\177L" "20\177C" "24\177C"
"51\177C" "20\177E" "48\177E" "8\177E"
"51\177E" "20\177I" "33\177I" "51\177D"
; 0xd0
"0\177\\DJ" "20\177N" "51\177N" "20\177O"
"33\177O" "55\177O" "8\177O" "38\177"
"51\177R" "53\177U" "20\177U" "55\177U"
"8\177U" "20\177Y" "24\177T" "0\177\\ss"
; 0xe0
"20\177r" "20\177a" "33\177a" "49\177a"
"8\177a" "20\177l" "20\177c" "24\177c"
"51\177c" "20\177e" "48\177e" "8\177e"
"51\177e" "20\177\\i" "33\177\\i" "51\177d"
; 0xf0
"0\177\\dj" "20\177n" "51\177n" "20\177o"
"33\177o" "55\177o" "8\177o" "45\177"
"51\177r" "53\177u" "20\177u" "55\177u"
"8\177u" "20\177y" "24\177t" "52\177\\ "
])
(defconst cjk-latin-3
[; 0xa0
"99\177" "0\177\\TEXTMALTESEH" "49\177\\ " "3\177"
"4\177" "" "33\177H" "7\177"
"8\177\\ " "52\177I" "24\177S" "49\177G"
"33\177J" "0\177-{}" "" "52\177Z"
; 0xb0
"16\177" "0\177\\textmalteseh" "18\177" "19\177"
"20\177\\ " "21\177" "33\177h" "23\177"
"24\177\\ " "0\177\\i" "24\177s" "49\177g"
"33\177\\j" "29\177" "" "52\177z"
; 0xc0
"32\177A" "20\177A" "33\177A" ""
"8\177A" "52\177C" "33\177C" "24\177C"
"32\177E" "20\177E" "33\177E" "8\177E"
"32\177I" "20\177I" "33\177I" "8\177I"
; 0xd0
"" "34\177N" "32\177O" "20\177O"
"33\177O" "52\177G" "8\177O" "38\177"
"33\177G" "32\177U" "20\177U" "33\177U"
"8\177U" "49\177U" "33\177S" "0\177\\ss"
; 0xe0
"32\177a" "20\177a" "33\177a" ""
"8\177a" "52\177c" "33\177c" "24\177c"
"32\177e" "20\177e" "33\177e" "8\177e"
"32\177\\i" "20\177\\i" "33\177\\i" "8\177\\i"
; 0xf0
"" "34\177n" "32\177o" "20\177o"
"33\177o" "52\177g" "8\177o" "45\177"
"33\177g" "32\177u" "20\177u" "33\177u"
"8\177u" "49\177u" "33\177s" "52\177\\ "
])
(defconst cjk-latin-4
[; 0xa0
"99\177" "48\177A" "59\177" "24\177R"
"4\177" "34\177I" "24\177L" "7\177"
"8\177\\ " "51\177S" "15\177E" "24\177G"
"0\177\\TEXTTSTROKE" "0\177-{}" "51\177Z" "15\177\\ "
; 0xb0
"16\177" "48\177a" "48\177\\ " "24\177r"
"20\177\\ " "34\177\\i" "24\177l" "51\177\\ "
"24\177\\ " "51\177s" "15\177e" "24\177g"
"0\177\\texttstroke" "0\177\\NG" "51\177z" "0\177\\ng"
; 0xc0
"15\177A" "20\177A" "33\177A" "34\177A"
"8\177A" "0\177\\AA" "0\177\\AE" "48\177I"
"51\177C" "20\177E" "48\177E" "8\177E"
"52\177E" "20\177I" "33\177I" "15\177I"
; 0xd0
"0\177\\DJ" "24\177N" "15\177O" "24\177K"
"33\177O" "34\177O" "8\177O" "38\177"
"0\177\\O" "48\177U" "20\177U" "33\177U"
"8\177U" "34\177U" "15\177U" "0\177\\ss"
; 0xe0
"15\177a" "20\177a" "33\177a" "34\177a"
"8\177a" "0\177\\aa" "0\177\\ae" "48\177i"
"51\177c" "20\177e" "48\177e" "8\177e"
"52\177e" "20\177\\i" "33\177\\i" "15\177\\i"
; 0xf0
"0\177\\dj" "24\177n" "15\177o" "24\177k"
"33\177o" "34\177o" "8\177o" "45\177"
"0\177\\o" "48\177u" "20\177u" "33\177u"
"8\177u" "34\177u" "15\177u" "52\177\\ "
])
(defconst cjk-latin-5 ; ISO 8859-9
[; 0xa0
"99\177" "1\177" "2\177" "3\177"
"4\177" "5\177" "6\177" "7\177"
"8\177\\ " "9\177" "10\177" "11\177"
"12\177" "0\177-{}" "14\177" "15\177\\ "
; 0xb0
"16\177" "17\177" "18\177" "19\177"
"20\177\\ " "21\177" "22\177" "23\177"
"24\177\\ " "25\177" "26\177" "27\177"
"28\177" "29\177" "30\177" "31\177"
; 0xc0
"32\177A" "20\177A" "33\177A" "34\177A"
"8\177A" "0\177\\AA" "0\177\\AE" "24\177C"
"32\177E" "20\177E" "33\177E" "8\177E"
"32\177I" "20\177I" "33\177I" "8\177I"
; 0xd0
"49\177G" "34\177N" "32\177O" "20\177O"
"33\177O" "34\177O" "8\177O" "38\177"
"0\177\\O" "32\177U" "20\177U" "33\177U"
"8\177U" "52\177I" "24\177S" "0\177\\ss"
; 0xe0
"32\177a" "20\177a" "33\177a" "34\177a"
"8\177a" "0\177\\aa" "0\177\\ae" "24\177c"
"32\177e" "20\177e" "33\177e" "8\177e"
"32\177\\i" "20\177\\i" "33\177\\i" "8\177\\i"
; 0xf0
"49\177g" "34\177n" "32\177o" "20\177o"
"33\177o" "34\177o" "8\177o" "45\177"
"0\177\\o" "32\177u" "20\177u" "33\177u"
"8\177u" "0\177\\i" "24\177s" "8\177y"
])
(defconst cjk-latin-jisx ; JIS X 0201 lower half
[; 0xa0
"" "0\177!" "37\177" "0\177\\#"
"39\177" "0\177\\%" "0\177\\&" "40\177"
"0\177(" "0\177)" "0\177*" "0\177+"
"0\177," "0\177-" "0\177." "0\177/"
; 0xb0
"0\1770" "0\1771" "0\1772" "0\1773"
"0\1774" "0\1775" "0\1776" "0\1777"
"0\1778" "0\1779" "0\177:" "0\177;"
"41\177" "0\177=" "42\177" "0\177?"
; 0xc0
"36\177" "0\177A" "0\177B" "0\177C"
"0\177D" "0\177E" "0\177F" "0\177G"
"0\177H" "0\177I" "0\177J" "0\177K"
"0\177L" "0\177M" "0\177N" "0\177O"
; 0xd0
"0\177P" "0\177Q" "0\177R" "0\177S"
"0\177T" "0\177U" "0\177V" "0\177W"
"0\177X" "0\177Y" "0\177Z" "0\177["
"5\177" "0\177]" "43\177" "44\177"
; 0xe0
"46\177" "0\177a" "0\177b" "0\177c"
"0\177d" "0\177e" "0\177f" "0\177g"
"0\177h" "0\177i" "0\177j" "0\177k"
"0\177l" "0\177m" "0\177n" "0\177o"
; 0xf0
"0\177p" "0\177q" "0\177r" "0\177s"
"0\177t" "0\177u" "0\177v" "0\177w"
"0\177x" "0\177y" "0\177z" "47\177"
"50\177" "54\177" "56\177" ""
])
(defconst cjk-cyrillic ; ISO 8859-5
[; 0xa0
"99\177" "0\177\\CYRYO" "0\177\\CYRDJE" "20\177\\CYRG"
"0\177\\CYRIE" "0\177\\CYRDZE" "0\177\\CYRII" "0\177\\CYRYI"
"0\177\\CYRJE" "0\177\\CYRLJE" "0\177\\CYRNJE" "0\177\\CYRTSHE"
"20\177\\CYRK" "0\177-{}" "0\177\\CYRUSHRT" "0\177\\CYRDZHE"
; 0xb0
"0\177\\CYRA" "0\177\\CYRB" "0\177\\CYRV" "0\177\\CYRG"
"0\177\\CYRD" "0\177\\CYRE" "0\177\\CYRZH" "0\177\\CYRZ"
"0\177\\CYRI" "0\177\\CYRISHRT" "0\177\\CYRK" "0\177\\CYRL"
"0\177\\CYRM" "0\177\\CYRN" "0\177\\CYRO" "0\177\\CYRP"
; 0xc0
"0\177\\CYRR" "0\177\\CYRS" "0\177\\CYRT" "0\177\\CYRU"
"0\177\\CYRF" "0\177\\CYRH" "0\177\\CYRC" "0\177\\CYRCH"
"0\177\\CYRSH" "0\177\\CYRSHCH" "0\177\\CYRHRDSN" "0\177\\CYRERY"
"0\177\\CYRSFTSN" "0\177\\CYREREV" "0\177\\CYRYU" "0\177\\CYRYA"
; 0xd0
"0\177\\cyra" "0\177\\cyrb" "0\177\\cyrv" "0\177\\cyrg"
"0\177\\cyrd" "0\177\\cyre" "0\177\\cyrzh" "0\177\\cyrz"
"0\177\\cyri" "0\177\\cyrishrt" "0\177\\cyrk" "0\177\\cyrl"
"0\177\\cyrm" "0\177\\cyrn" "0\177\\cyro" "0\177\\cyrp"
; 0xe0
"0\177\\cyrr" "0\177\\cyrs" "0\177\\cyrt" "0\177\\cyru"
"0\177\\cyrf" "0\177\\cyrh" "0\177\\cyrc" "0\177\\cyrch"
"0\177\\cyrsh" "0\177\\cyrshch" "0\177\\cyrhrdsn" "0\177\\cyrery"
"0\177\\cyrsftsn" "0\177\\cyrerev" "0\177\\cyryu" "0\177\\cyrya"
; 0xf0
"35\177" "0\177\\cyryo" "0\177\\cyrdje" "20\177\\cyrg"
"0\177\\cyrie" "0\177\\cyrdze" "0\177\\cyrii" "0\177\\cyryi"
"0\177\\cyrje" "0\177\\cyrlje" "0\177\\cyrnje" "0\177\\cyrtshe"
"20\177\\cyrk" "7\177" "0\177\\cyrushrt" "0\177\\cyrdzhe"
])
(defconst cjk-greek ; ISO 8859-7
[;0xa0
"99\177" "0\177<{}" "0\177>{}" "3\177"
"" "" "6\177" "7\177"
"8\177\\ " "9\177" "" "0\177(("
"12\177" "0\177-{}" "" "0\177---"
; 0xb0
"16\177" "17\177" "18\177" "19\177"
"0\177'{}" "0\177\"'{}" "0\177'A" "0\177;"
"0\177'E" "0\177'H" "0\177'I" "0\177))"
"0\177'O" "29\177" "0\177'U" "0\177'W"
; 0xc0
"0\177\"'i" "0\177A" "0\177B" "0\177G"
"0\177D" "0\177E" "0\177Z" "0\177H"
"0\177J" "0\177I" "0\177K" "0\177L"
"0\177M" "0\177N" "0\177X" "0\177O"
; 0xd0
"0\177P" "0\177R" "" "0\177S"
"0\177T" "0\177U" "0\177F" "0\177Q"
"0\177Y" "0\177W" "0\177\"I" "0\177\"U"
"0\177'a" "0\177'e" "0\177'h" "0\177'i"
; 0xe0
"0\177\"'u" "0\177a" "0\177b" "0\177g"
"0\177d" "0\177e" "0\177z" "0\177h"
"0\177j" "0\177i" "0\177k" "0\177l"
"0\177m" "0\177n" "0\177x" "0\177o"
; 0xf0
"0\177p" "0\177r" "0\177c" "0\177s"
"0\177t" "0\177u" "0\177f" "0\177q"
"0\177y" "0\177w" "0\177\"i" "0\177\"u"
"0\177'o" "0\177'u" "0\177'w" ""
])
(defconst cjk-viscii-lower
[; 0xA0
"" "20\177\\abreve" "32\177\\abreve" "71\177\\abreve"
"20\177\\acircumflex" "32\177\\acircumflex" "73\177\\acircumflex" "71\177\\acircumflex"
"34\177e" "71\177e" "20\177\\ecircumflex" "32\177\\ecircumflex"
"73\177\\ecircumflex" "34\177\\ecircumflex" "71\177\\ecircumflex" "20\177\\ocircumflex"
; 0xB0
"32\177\\ocircumflex" "73\177\\ocircumflex" "34\177\\ocircumflex" ""
"" "71\177\\ocircumflex" "32\177\\ohorn" "73\177\\ohorn"
"71\177i" "" "" ""
"" "0\177\\ohorn" "20\177\\ohorn" ""
; 0xC0
"" "" "" ""
"" "" "73\177\\abreve" "34\177\\abreve"
"" "" "" ""
"" "" "" "32\177y"
; 0xD0
"" "20\177\\uhorn" "" ""
"" "71\177a" "73\177y" "32\177\\uhorn"
"73\177\\uhorn" "" "" "34\177y"
"71\177y" "" "34\177\\ohorn" "0\177\\uhorn"
; 0xE0
"32\177a" "20\177a" "0\177\\acircumflex" "34\177a"
"73\177a" "0\177\\abreve" "34\177\\uhorn" "34\177\\acircumflex"
"32\177e" "20\177e" "0\177\\ecircumflex" "73\177e"
"32\177i" "20\177i" "34\177i" "73\177i"
; 0xF0
"0\177\\dj" "71\177\\uhorn" "32\177o" "20\177o"
"0\177\\ocircumflex" "34\177o" "73\177o" "71\177o"
"71\177u" "32\177u" "20\177u" "34\177u"
"73\177u" "20\177y" "71\177\\ohorn" ""
])
(defconst cjk-viscii-upper
[; 0xA0
"" "20\177\\ABREVE" "32\177\\ABREVE" "71\177\\ABREVE"
"20\177\\ACIRCUMFLEX" "32\177\\ACIRCUMFLEX" "73\177\\ACIRCUMFLEX" "71\177\\ACIRCUMFLEX"
"34\177E" "71\177E" "20\177\\ECIRCUMFLEX" "32\177\\ECIRCUMFLEX"
"73\177\\ECIRCUMFLEX" "34\177\\ECIRCUMFLEX" "71\177\\ECIRCUMFLEX" "20\177\\OCIRCUMFLEX"
; 0xB0
"32\177\\OCIRCUMFLEX" "73\177\\OCIRCUMFLEX" "34\177\\OCIRCUMFLEX" ""
"" "71\177\\OCIRCUMFLEX" "32\177\\OHORN" "73\177\\OHORN"
"71\177I" "" "" ""
"" "0\177\\OHORN" "20\177\\OHORN" ""
; 0xC0
"" "" "" ""
"" "" "73\177\\ABREVE" "34\177\\ABREVE"
"" "" "" ""
"" "" "" "32\177Y"
; 0xD0
"" "20\177\\UHORN" "" ""
"" "71\177A" "73\177Y" "32\177\\UHORN"
"73\177\\UHORN" "" "" "34\177Y"
"71\177Y" "" "34\177\\OHORN" "0\177\\UHORN"
; 0xE0
"32\177A" "20\177A" "0\177\\ACIRCUMFLEX" "34\177A"
"73\177A" "0\177\\ABREVE" "34\177\\UHORN" "34\177\\ACIRCUMFLEX"
"32\177E" "20\177E" "0\177\\ECIRCUMFLEX" "73\177E"
"32\177I" "20\177I" "34\177I" "73\177I"
; 0xF0
"0\177\\DJ" "71\177\\UHORN" "32\177O" "20\177O"
"0\177\\OCIRCUMFLEX" "34\177O" "73\177O" "71\177O"
"71\177U" "32\177U" "20\177U" "34\177U"
"73\177U" "20\177Y" "71\177\\OHORN" ""
])
;; The following encodings will be selected (if they occur in the input
;; buffer) at the very beginning of the output buffer to load the
;; corresponding CJK macros.
(defconst cjk-enc-table
(let ((vec (make-vector 256 nil)))
(aset vec lc-cn "GB")
(aset vec lc-kana "SJIS")
(aset vec lc-jp "JIS")
(aset vec lc-jp2 "JIS2")
(aset vec lc-kr "KS")
(aset vec lc-big5-1 "Bg5")
(aset vec lc-big5-2 "Bg5")
(aset vec lc-cns1 "CNS1")
(aset vec lc-cns2 "CNS2")
(aset vec lc-cns3 "CNS3")
(aset vec lc-cns4 "CNS4")
(aset vec lc-cns5 "CNS5")
(aset vec lc-cns6 "CNS6")
(aset vec lc-cns7 "CNS7")
vec))
(defconst cjk-space "\17764\177\177")
(defconst cjk-nospace "\17765\177\177")
;; here we have the format specification table which defines what to do
;; for each encoding.
(defconst cjk-format-spec-table
(let ((vec (make-vector 256 nil)))
;; Element is a vector VEC. Each character is formatted as:
;; (format "\177%s\177" (aref VEC (- char-code 160)))
(aset vec lc-ltn1 cjk-latin-1)
(aset vec lc-ltn2 cjk-latin-2)
(aset vec lc-ltn3 cjk-latin-3)
(aset vec lc-ltn4 cjk-latin-4)
(aset vec lc-ltn5 cjk-latin-5)
(aset vec lc-roman cjk-latin-jisx)
;; T2A encoding is used for Cyrillic letters. You must explicitly
;; switch between T2 and T1/OT1 encoding.
(aset vec lc-crl cjk-cyrillic)
;; LGR encoding (resp. its ligatures) is used for Greek letters. You
;; must explicitly switch between LGR and T1/OT1 encoding (using
;; e.g. Babel's `greek' option).
(aset vec lc-grk cjk-greek)
;; for Vietnamese a Vietnamese TeX-font has to be used which contains
;; ASCII characters too! You must explicitly switch between Vietnamese
;; T5 and T1/OT1 encoding.
(aset vec lc-vn-1 cjk-viscii-lower)
(aset vec lc-vn-2 cjk-viscii-upper)
;; Element is a cons of header HEAD and formatter FORMAT. HEAD is
;; printed first, then each character is formatted as:
;; (format FORMAT char-code-1 char-code-2)
(aset vec lc-kana '("\17770\177\177" . "\177%c\177\177"))
(aset vec lc-jp '("\17766\177\177" . "\177%c\177%d\177"))
(aset vec lc-cn '("\17767\177\177" . "\177%c\177%d\177"))
(aset vec lc-big5-1 '("\17768\177\177" . "\177%c\177%d\177"))
(aset vec lc-big5-2 '("\17768\177\177" . "\177%c\177%d\177"))
(aset vec lc-kr '("\17769\177\177" . "\177%c\177%d\177"))
;; Element is a formatter string FORMAT. Each character is
;; formatted as:
;; (format FORMAT char-code-1 char-code-2)
(aset vec lc-jp2 "\17772\177JIS2\177\177%d\177%d\177")
(aset vec lc-cns1 "\17772\177CNS1\177\177%d\177%d\177")
(aset vec lc-cns2 "\17772\177CNS2\177\177%d\177%d\177")
(aset vec lc-cns3 "\17772\177CNS3\177\177%d\177%d\177")
(aset vec lc-cns4 "\17772\177CNS4\177\177%d\177%d\177")
(aset vec lc-cns5 "\17772\177CNS5\177\177%d\177%d\177")
(aset vec lc-cns6 "\17772\177CNS6\177\177%d\177%d\177")
(aset vec lc-cns7 "\17772\177CNS7\177\177%d\177%d\177")
vec))
(make-coding-system
'*cjk-coding* 0 ?c
"Coding-system for LaTeX2e CJK Package" 1)
(put '*cjk-coding* 'pre-write-conversion 'cjk-encode)
(defun cjk-encode (from to)
(save-excursion
(save-restriction
(narrow-to-region from to)
(let ((mc-flag t)
(re-multibyte-char "[\177-\237][\240-\177]+")
(enc (make-vector 256 nil))
(space-state nil)
(require-cjk-execute nil)
prev-lc lc ch ch1 ch2 format-spec)
(goto-char (point-min))
(if (null (let (mc-flag) (re-search-forward re-multibyte-char nil t)))
;; No multilingual text. Nothing to do.
nil
(goto-char (match-beginning 0))
(setq prev-lc lc-ascii)
(while (not (eobp))
;; Now we are at a multibyte character.
;; Set the following variables:
;; LC -- leading char
;; CH1 -- first char code
;; CH2 -- second char code (of two byte chars)
(setq ch (following-char))
(delete-char 1)
(setq lc (char-component ch 0))
(if (or (= lc lc-big5-1) (= lc lc-big5-2))
;; Mule has special encoding for Big5 characters. We
;; must decode them to the normal Big5 codes.
(let ((vec (g2b ch)))
(setq ch1 (aref vec 0) ch2 (aref vec 1)))
(setq ch1 (char-component ch 1)
ch2 (char-component ch 2)))
;; FORMAT-SPEC tells how to encode this character.
(setq format-spec (aref cjk-format-spec-table lc))
(if (null format-spec)
;; Unsupported character set.
nil
;; Ok, it is supported. If this character set is one of
;; CJK, we need a special header at the beginning of the
;; file.
(if (aset enc lc (aref cjk-enc-table lc))
(setq require-cjk-execute t))
(cond ((consp format-spec)
;; We may have to insert the car part of the cons
;; and/or space controlling commands
;; (cjk-space/cjk-nospace) depending on the current
;; context.
(if (= lc lc-kr)
(or (eq space-state cjk-space)
(insert (setq space-state cjk-space)))
(or (eq space-state cjk-nospace)
(insert (setq space-state cjk-nospace))))
(if (/= prev-lc lc)
(insert (car format-spec)))
(insert (format (cdr format-spec) ch1 ch2)))
((vectorp format-spec)
(insert (format "\177%s\177"
(aref format-spec (- ch1 160)))))
(t ; FORMAT-SPEC is just a formatting string.
(insert (format format-spec ch1 ch2)))))
;; Prepare the next loop.
(setq prev-lc lc)
;; Skip spaces, etc.
(skip-chars-forward " \t\n")
;; If there are any ASCII chars, skip them also, but set
;; PREV-LC to LC-ASCII.
(if (and (< (following-char) 128)
(let (mc-flag)
(re-search-forward re-multibyte-char nil 'move)))
(progn
(goto-char (match-beginning 0))
(setq prev-lc lc-ascii))))
;; Now, insert an appropriate header at the head of the file.
(goto-char (point-min))
(if require-cjk-execute
(let ((i 128))
(insert "\\def\\CJKhook{")
(while (< i 256)
(if (aref enc i)
(insert (format "\\CJKenc{%s}" (aref enc i))))
(setq i (1+ i)))
(insert "}")
(insert "\\ifx\\CJKpreproc\\undefined")
(insert "\\def\\CJKpreproc{cjk-enc}")
(insert "\\RequirePackage[global]{CJK}")
(insert "\\AtBeginDocument{\\begin{CJK}{}{}\\CJKspace}")
(insert "\\AtEndDocument{\\end{CJK}}")
(insert "\\else\\CJKhook\\fi "))
(insert "\\ifx\\CJKpreproc\\undefined")
(insert "\\def\\CJKpreproc{cjk-enc}")
(insert "\\RequirePackage{MULEenc}")
(insert "\\fi ")))))))
(defun cjk-write-file ()
"Save current buffer and <buffername>.cjk in *cjk-coding*.
Files of the form <buffername>.bib are saved as <buffername>-cjk.bib"
(interactive)
(let ((bufname (buffer-file-name))
body
extension
newbufname)
(save-buffer)
(string-match "\\(.*\\)\\(\\.[^/]*$\\)" bufname)
(setq body (match-string 1 bufname)
extension (match-string 2 bufname))
(setq newbufname
(concat body
(if (string-equal extension ".bib")
"-cjk.bib"
".cjk")))
(message "Saving %s and %s" bufname newbufname)
(let ((set-file-coding-system *cjk-coding*))
(write-region (point-min) (point-max) newbufname))))
;;; EOF