;;; mule-conf.el --- configure multilingual environment  -*- lexical-binding: t; -*-

;; Copyright (C) 1997-2025 Free Software Foundation, Inc.
;; Copyright (C) 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: i18n, mule, multilingual, character set, coding system

;; 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:

;; This file defines the Emacs charsets and some basic coding systems.
;; Other coding systems are defined in the files in directory
;; lisp/language.

;;; Code:

;;; Remarks

;; The ISO-IR registry is maintained by the Information Processing
;; Society of Japan/Information Technology Standards Commission of
;; Japan (IPSJ/ITSCJ) at https://www.itscj.ipsj.or.jp/itscj_english/.
;; Standards docs equivalent to iso-2022 and iso-8859 are at
;; https://www.ecma.ch/.

;; FWIW, https://www.microsoft.com/globaldev/ lists the following for
;; MS Windows, which are presumably the only charsets we really need
;; to worry about on such systems:
;; `OEM codepages': 437, 720, 737, 775, 850, 852, 855, 857, 858, 862, 866
;; `Windows codepages': 1250, 1251, 1252, 1253, 1254, 1255, 1256, 1257,
;;                      1258, 874, 932, 936, 949, 950

;;; Definitions of character sets.

;; The charsets `ascii', `unicode' and `eight-bit' are already defined
;; in charset.c as below:
;;
;; (define-charset 'ascii
;;   ""
;;   :dimension 1
;;   :code-space [0 127]
;;   :iso-final-char ?B
;;   :ascii-compatible-p t
;;   :emacs-mule-id 0
;;   :code-offset 0)
;;
;; (define-charset 'unicode
;;   ""
;;   :dimension 3
;;   :code-space [0 255 0 255 0 16]
;;   :ascii-compatible-p t
;;   :code-offset 0)
;;
;; (define-charset 'emacs
;;   ""
;;   :dimension 3
;;   :code-space [0 255 0 255 0 63]
;;   :ascii-compatible-p t
;;   :supplementary-p t
;;   :code-offset 0)
;;
;; (define-charset 'eight-bit
;;   ""
;;   :dimension 1
;;   :code-space [128 255]
;;   :code-offset #x3FFF80)
;;
;; We now set :docstring, :short-name, and :long-name properties.

(put-charset-property
 'ascii :docstring "ASCII (ISO646 IRV)")
(put-charset-property
 'ascii :short-name "ASCII")
(put-charset-property
 'ascii :long-name "ASCII (ISO646 IRV)")
(put-charset-property
 'iso-8859-1 :docstring "Latin-1 (ISO/IEC 8859-1)")
(put-charset-property
 'iso-8859-1 :short-name "Latin-1")
(put-charset-property
 'iso-8859-1 :long-name "Latin-1")
(put-charset-property
 'unicode :docstring "Unicode (ISO10646)")
(put-charset-property
 'unicode :short-name "Unicode")
(put-charset-property
 'unicode :long-name "Unicode (ISO10646)")
(put-charset-property
 'emacs :docstring "Full Emacs charset (excluding eight bit chars)")
(put-charset-property
 'emacs :short-name "Emacs")
(put-charset-property
 'emacs :long-name "Emacs")

(put-charset-property 'eight-bit :docstring "Raw bytes 128-255")
(put-charset-property 'eight-bit :short-name "Raw bytes")

(define-charset-alias 'ucs 'unicode)

(define-charset 'latin-iso8859-1
  "Right-Hand Part of ISO/IEC 8859/1 (Latin-1): ISO-IR-100"
  :short-name "RHP of Latin-1"
  :long-name "RHP of ISO/IEC 8859/1 (Latin-1): ISO-IR-100"
  :iso-final-char ?A
  :emacs-mule-id 129
  :code-space [32 127]
  :code-offset 160)

;; Name perhaps not ideal, but is XEmacs-compatible.
(define-charset 'control-1
  "8-bit control code (0x80..0x9F)"
  :short-name "8-bit control code"
  :code-space [128 159]
  :code-offset 128)

(define-charset 'eight-bit-control
  "Raw bytes in the range 0x80..0x9F (usually produced from invalid encodings)"
  :short-name "Raw bytes 0x80..0x9F"
  :supplementary-p t
  :code-space [128 159]
  :code-offset #x3FFF80)		; see character.h

(define-charset 'eight-bit-graphic
  "Raw bytes in the range 0xA0..0xFF (usually produced from invalid encodings)"
  :short-name "Raw bytes 0xA0..0xFF"
  :supplementary-p t
  :code-space [160 255]
  :code-offset #x3FFFA0)		; see character.h

(defmacro define-iso-single-byte-charset (symbol iso-symbol name nickname
						 iso-ir iso-final
						 emacs-mule-id map)
  (declare (indent defun))
  `(progn
     (define-charset ,symbol
       ,name
       :short-name ,nickname
       :long-name ,name
       :ascii-compatible-p t
       :code-space [0 255]
       :map ,map)
     (if ,iso-symbol
	 (define-charset ,iso-symbol
	   (if ,iso-ir
	       (format "Right-Hand Part of %s (%s): ISO-IR-%d"
		       ,name ,nickname ,iso-ir)
	     (format "Right-Hand Part of %s (%s)" ,name ,nickname))
	   :short-name (format "RHP of %s" ,name)
	   :long-name (format "RHP of %s (%s)" ,name ,nickname)
	   :iso-final-char ,iso-final
	   :emacs-mule-id ,emacs-mule-id
	   :code-space [32 127]
	   :subset (list ,symbol 160 255 -128)))))

(define-iso-single-byte-charset 'iso-8859-2 'latin-iso8859-2
  "ISO/IEC 8859/2" "Latin-2" 101 ?B 130 "8859-2")

(define-iso-single-byte-charset 'iso-8859-3 'latin-iso8859-3
  "ISO/IEC 8859/3" "Latin-3" 109 ?C 131 "8859-3")

(define-iso-single-byte-charset 'iso-8859-4 'latin-iso8859-4
  "ISO/IEC 8859/4" "Latin-4" 110 ?D 132 "8859-4")

(define-iso-single-byte-charset 'iso-8859-5 'cyrillic-iso8859-5
  "ISO/IEC 8859/5" "Latin/Cyrillic" 144 ?L 140 "8859-5")

(define-iso-single-byte-charset 'iso-8859-6 'arabic-iso8859-6
  "ISO/IEC 8859/6" "Latin/Arabic" 127 ?G 135 "8859-6")

(define-iso-single-byte-charset 'iso-8859-7 'greek-iso8859-7
  "ISO/IEC 8859/7" "Latin/Greek" 126 ?F 134 "8859-7")

(define-iso-single-byte-charset 'iso-8859-8 'hebrew-iso8859-8
  "ISO/IEC 8859/8" "Latin/Hebrew" 138 ?H 136 "8859-8")

(define-iso-single-byte-charset 'iso-8859-9 'latin-iso8859-9
  "ISO/IEC 8859/9" "Latin-5" 148 ?M 141 "8859-9")

(define-iso-single-byte-charset 'iso-8859-10 'latin-iso8859-10
  "ISO/IEC 8859/10" "Latin-6" 157 ?V nil "8859-10")

;; http://www.nectec.or.th/it-standards/iso8859-11/
;; http://www.cwi.nl/~dik/english/codes/8859.html says this is tis-620
;; plus nbsp
(define-iso-single-byte-charset 'iso-8859-11 'thai-iso8859-11
  "ISO/IEC 8859/11" "Latin/Thai" 166 ?T nil "8859-11")

;; 8859-12 doesn't (yet?) exist.

(define-iso-single-byte-charset 'iso-8859-13 'latin-iso8859-13
  "ISO/IEC 8859/13" "Latin-7" 179 ?Y nil "8859-13")

(define-iso-single-byte-charset 'iso-8859-14 'latin-iso8859-14
  "ISO/IEC 8859/14" "Latin-8" 199 ?_ 143 "8859-14")

(define-iso-single-byte-charset 'iso-8859-15 'latin-iso8859-15
  "ISO/IEC 8859/15" "Latin-9" 203 ?b 142 "8859-15")

(define-iso-single-byte-charset 'iso-8859-16 'latin-iso8859-16
  "ISO/IEC 8859/16" "Latin-10" 226 ?f nil "8859-16")

;; No point in keeping it around.
(fmakunbound 'define-iso-single-byte-charset)

;; Can this be shared with 8859-11?
;; N.b. not all of these are defined in Unicode.
(define-charset 'thai-tis620
  "MULE charset for TIS620.2533"
  :short-name "TIS620.2533"
  :iso-final-char ?T
  :emacs-mule-id 133
  :code-space [32 127]
  :code-offset #x0E00)

(define-charset 'tis620-2533
  "TIS620.2533, a.k.a. TIS-620.  Like `thai-iso8859-11', but without NBSP."
  :short-name "TIS620.2533"
  :ascii-compatible-p t
  :code-space [0 255]
  :superset '(ascii (thai-tis620 . 128)))

(define-charset 'jisx0201
  "JISX0201"
  :short-name "JISX0201"
  :code-space [0 #xDF]
  :map "JISX0201")

(define-charset 'latin-jisx0201
  "Roman Part of JISX0201.1976"
  :short-name "JISX0201 Roman"
  :long-name "Japanese Roman (JISX0201.1976)"
  :iso-final-char ?J
  :emacs-mule-id  138
  :supplementary-p t
  :code-space [33 126]
  :subset '(jisx0201 33 126 0))

(define-charset 'katakana-jisx0201
  "Katakana Part of JISX0201.1976"
  :short-name "JISX0201 Katakana"
  :long-name "Japanese Katakana (JISX0201.1976)"
  :iso-final-char ?I
  :emacs-mule-id  137
  :supplementary-p t
  :code-space [33 126]
  :subset '(jisx0201 161 254 -128))

(define-charset 'chinese-gb2312
  "GB2312 Chinese simplified: ISO-IR-58"
  :short-name "GB2312"
  :long-name "GB2312: ISO-IR-58"
  :iso-final-char ?A
  :emacs-mule-id 145
  :code-space [33 126 33 126]
  :code-offset #x110000
  :unify-map "GB2312")

(define-charset 'chinese-gbk
  "GBK Chinese simplified."
  :short-name "GBK"
  :code-space [#x40 #xFE #x81 #xFE]
  :code-offset #x160000
  :unify-map "GBK")
(define-charset-alias 'cp936 'chinese-gbk)
(define-charset-alias 'windows-936 'chinese-gbk)

(define-charset 'chinese-cns11643-1
  "CNS11643 Plane 1 Chinese traditional: ISO-IR-171"
  :short-name "CNS11643-1"
  :long-name "CNS11643-1 (Chinese traditional): ISO-IR-171"
  :iso-final-char ?G
  :emacs-mule-id  149
  :code-space [33 126 33 126]
  :code-offset #x114000
  :unify-map "CNS-1")

(define-charset 'chinese-cns11643-2
  "CNS11643 Plane 2 Chinese traditional: ISO-IR-172"
  :short-name "CNS11643-2"
  :long-name "CNS11643-2 (Chinese traditional): ISO-IR-172"
  :iso-final-char ?H
  :emacs-mule-id  150
  :code-space [33 126 33 126]
  :code-offset #x118000
  :unify-map "CNS-2")

(define-charset 'chinese-cns11643-3
  "CNS11643 Plane 3 Chinese Traditional: ISO-IR-183"
  :short-name  "CNS11643-3"
  :long-name "CNS11643-3 (Chinese traditional): ISO-IR-183"
  :iso-final-char ?I
  :code-space [33 126 33 126]
  :emacs-mule-id  246
  :code-offset #x11C000
  :unify-map "CNS-3")

(define-charset 'chinese-cns11643-4
  "CNS11643 Plane 4 Chinese Traditional: ISO-IR-184"
  :short-name  "CNS11643-4"
  :long-name "CNS11643-4 (Chinese traditional): ISO-IR-184"
  :iso-final-char ?J
  :emacs-mule-id  247
  :code-space [33 126 33 126]
  :code-offset #x120000
  :unify-map "CNS-4")

(define-charset 'chinese-cns11643-5
  "CNS11643 Plane 5 Chinese Traditional: ISO-IR-185"
  :short-name  "CNS11643-5"
  :long-name "CNS11643-5 (Chinese traditional): ISO-IR-185"
  :iso-final-char ?K
  :emacs-mule-id  248
  :code-space [33 126 33 126]
  :code-offset #x124000
  :unify-map "CNS-5")

(define-charset 'chinese-cns11643-6
  "CNS11643 Plane 6 Chinese Traditional: ISO-IR-186"
  :short-name  "CNS11643-6"
  :long-name "CNS11643-6 (Chinese traditional): ISO-IR-186"
  :iso-final-char ?L
  :emacs-mule-id 249
  :code-space [33 126 33 126]
  :code-offset #x128000
  :unify-map "CNS-6")

(define-charset 'chinese-cns11643-7
  "CNS11643 Plane 7 Chinese Traditional: ISO-IR-187"
  :short-name  "CNS11643-7"
  :long-name "CNS11643-7 (Chinese traditional): ISO-IR-187"
  :iso-final-char ?M
  :emacs-mule-id 250
  :code-space [33 126 33 126]
  :code-offset #x12C000
  :unify-map "CNS-7")

(define-charset 'big5
  "Big5 (Chinese traditional)"
  :short-name "Big5"
  :code-space [#x40 #xFE #xA1 #xFE]
  :code-offset #x130000
  :unify-map "BIG5")
;; Fixme: AKA cp950 according to
;; <URL:https://www.microsoft.com/globaldev/reference/WinCP.asp>.  Is
;; that correct?

(define-charset 'chinese-big5-1
  "Frequently used part (A141-C67E) of Big5 (Chinese traditional)"
  :short-name "Big5 (Level-1)"
  :long-name "Big5 (Level-1) A141-C67F"
  :iso-final-char ?0
  :emacs-mule-id 152
  :supplementary-p t
  :code-space [#x21 #x7E #x21 #x7E]
  :code-offset #x135000
  :unify-map "BIG5-1")

(define-charset 'chinese-big5-2
  "Less frequently used part (C940-FEFE) of Big5 (Chinese traditional)"
  :short-name "Big5 (Level-2)"
  :long-name "Big5 (Level-2) C940-FEFE"
  :iso-final-char ?1
  :emacs-mule-id  153
  :supplementary-p t
  :code-space [#x21 #x7E #x21 #x7E]
  :code-offset #x137800
  :unify-map "BIG5-2")

(define-charset 'japanese-jisx0208
  "JISX0208.1983/1990 Japanese Kanji: ISO-IR-87"
  :short-name "JISX0208"
  :long-name "JISX0208.1983/1990 (Japanese): ISO-IR-87"
  :iso-final-char ?B
  :emacs-mule-id 146
  :code-space [33 126 33 126]
  :code-offset #x140000
  :unify-map "JISX0208")

(define-charset 'japanese-jisx0208-1978
  "JISX0208.1978 Japanese Kanji (so called \"old JIS\"): ISO-IR-42"
  :short-name "JISX0208.1978"
  :long-name  "JISX0208.1978 (JISC6226.1978): ISO-IR-42"
  :iso-final-char ?@
  :emacs-mule-id  144
  :code-space [33 126 33 126]
  :code-offset #x144000
  :unify-map "JISC6226")

(define-charset 'japanese-jisx0212
  "JISX0212 Japanese supplement: ISO-IR-159"
  :short-name "JISX0212"
  :long-name "JISX0212 (Japanese): ISO-IR-159"
  :iso-final-char ?D
  :emacs-mule-id 148
  :code-space [33 126 33 126]
  :code-offset #x148000
  :unify-map "JISX0212")

;; Note that jisx0213 contains characters not in Unicode (3.2?).  It's
;; arguable whether it should have a unify-map.
(define-charset 'japanese-jisx0213-1
  "JISX0213.2000 Plane 1 (Japanese)"
  :short-name "JISX0213-1"
  :iso-final-char ?O
  :emacs-mule-id  151
  :unify-map "JISX2131"
  :code-space [33 126 33 126]
  :code-offset #x14C000)

(define-charset 'japanese-jisx0213-2
  "JISX0213.2000 Plane 2 (Japanese)"
  :short-name "JISX0213-2"
  :iso-final-char ?P
  :emacs-mule-id 254
  :unify-map "JISX2132"
  :code-space [33 126 33 126]
  :code-offset #x150000)

(define-charset 'japanese-jisx0213-a
  "JISX0213.2004 adds these characters to JISX0213.2000."
  :short-name "JISX0213A"
  :dimension 2
  :code-space [33 126 33 126]
  :supplementary-p t
  :map "JISX213A")

(define-charset 'japanese-jisx0213.2004-1
  "JISX0213.2004 Plane1 (Japanese)"
  :short-name "JISX0213.2004-1"
  :dimension 2
  :code-space [33 126 33 126]
  :iso-final-char ?Q
  :superset '(japanese-jisx0213-a japanese-jisx0213-1))

(define-charset 'katakana-sjis
  "Katakana part of Shift-JIS"
  :dimension 1
  :code-space [#xA1 #xDF]
  :subset '(jisx0201 #xA1 #xDF 0)
  :supplementary-p t)

(define-charset 'cp932-2-byte
  "2-byte part of CP932"
  :dimension 2
  :map "CP932-2BYTE"
  :code-space [#x40 #xFC #x81 #xFC]
  :supplementary-p t)

(define-charset 'cp932
  "CP932 (Microsoft shift-jis)"
  :code-space [#x00 #xFF #x00 #xFE]
  :short-name "CP932"
  :superset '(ascii katakana-sjis cp932-2-byte))

(define-charset 'korean-ksc5601
  "KSC5601 Korean Hangul and Hanja: ISO-IR-149"
  :short-name "KSC5601"
  :long-name "KSC5601 (Korean): ISO-IR-149"
  :iso-final-char ?C
  :emacs-mule-id 147
  :code-space [33 126 33 126]
  :code-offset #x279f94			; ... #x27c217
  :unify-map "KSC5601")

(define-charset 'big5-hkscs
  "Big5-HKSCS (Chinese traditional, Hong Kong supplement)"
  :short-name "Big5"
  :code-space [#x40 #xFE #xA1 #xFE]
  :code-offset #x27c218			; ... #x280839
  :unify-map "BIG5-HKSCS")

(define-charset 'cp949-2-byte
  "2-byte part of CP949"
  :dimension 2
  :map "CP949-2BYTE"
  :code-space [#x41 #xFE #x81 #xFD]
  :supplementary-p t)

(define-charset 'cp949
  "CP949 (Korean)"
  :short-name "CP949"
  :long-name  "CP949 (Korean)"
  :code-space [#x00 #xFE #x00 #xFD]
  :superset '(ascii cp949-2-byte))

(define-charset 'chinese-sisheng
  "SiSheng characters for PinYin/ZhuYin"
  :short-name "SiSheng"
  :long-name "SiSheng (PinYin/ZhuYin)"
  :iso-final-char ?0
  :emacs-mule-id 160
  :code-space [33 126]
  :unify-map "MULE-sisheng"
  :supplementary-p t
  :code-offset #x200000)

;; A subset of the 1989 version of IPA.  It consists of the consonant
;; signs used in English, French, German and Italian, and all vowels
;; signs in the table.  [says old MULE doc]
(define-charset 'ipa
  "IPA (International Phonetic Association)"
  :short-name "IPA"
  :iso-final-char ?0
  :emacs-mule-id  161
  :unify-map "MULE-ipa"
  :code-space [32 127]
  :supplementary-p t
  :code-offset #x200080)

(define-charset 'viscii
  "VISCII1.1"
  :short-name "VISCII"
  :long-name "VISCII 1.1"
  :code-space [0 255]
  :map "VISCII")

(define-charset 'vietnamese-viscii-lower
  "VISCII1.1 lower-case"
  :short-name "VISCII lower"
  :long-name "VISCII lower-case"
  :iso-final-char ?1
  :emacs-mule-id  162
  :code-space [32 127]
  :code-offset #x200200
  :supplementary-p t
  :unify-map "MULE-lviscii")

(define-charset 'vietnamese-viscii-upper
  "VISCII1.1 upper-case"
  :short-name "VISCII upper"
  :long-name "VISCII upper-case"
  :iso-final-char ?2
  :emacs-mule-id  163
  :code-space [32 127]
  :code-offset #x200280
  :supplementary-p t
  :unify-map "MULE-uviscii")

(define-charset 'vscii
  "VSCII1.1 (TCVN-5712 VN1)"
  :short-name "VSCII"
  :code-space [0 255]
  :map "VSCII")

(define-charset-alias 'tcvn-5712 'vscii)

;; Fixme: see note in tcvn.map about combining characters
(define-charset 'vscii-2
  "VSCII-2 (TCVN-5712 VN2)"
  :code-space [0 255]
  :map "VSCII-2")

(define-charset 'koi8-r
  "KOI8-R"
  :short-name "KOI8-R"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "KOI8-R")

(define-charset-alias 'koi8 'koi8-r)

(define-charset 'alternativnyj
  "ALTERNATIVNYJ"
  :short-name "alternativnyj"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "ALTERNATIVNYJ")

(define-charset 'cp866
  "CP866"
  :short-name "cp866"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "IBM866")
(define-charset-alias 'ibm866 'cp866)

(define-charset 'koi8-u
  "KOI8-U"
  :short-name "KOI8-U"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "KOI8-U")

(define-charset 'koi8-t
  "KOI8-T"
  :short-name "KOI8-T"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "KOI8-T")

(define-charset 'georgian-ps
  "GEORGIAN-PS"
  :short-name "GEORGIAN-PS"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "KA-PS")

(define-charset 'georgian-academy
  "GEORGIAN-ACADEMY"
  :short-name "GEORGIAN-ACADEMY"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "KA-ACADEMY")

(define-charset 'windows-1250
  "WINDOWS-1250 (Central Europe)"
  :short-name "WINDOWS-1250"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "CP1250")
(define-charset-alias 'cp1250 'windows-1250)

(define-charset 'windows-1251
  "WINDOWS-1251 (Cyrillic)"
  :short-name "WINDOWS-1251"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "CP1251")
(define-charset-alias 'cp1251 'windows-1251)

(define-charset 'windows-1252
  "WINDOWS-1252 (Latin I)"
  :short-name "WINDOWS-1252"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "CP1252")
(define-charset-alias 'cp1252 'windows-1252)

(define-charset 'windows-1253
  "WINDOWS-1253 (Greek)"
  :short-name "WINDOWS-1253"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "CP1253")
(define-charset-alias 'cp1253 'windows-1253)

(define-charset 'windows-1254
  "WINDOWS-1254 (Turkish)"
  :short-name "WINDOWS-1254"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "CP1254")
(define-charset-alias 'cp1254 'windows-1254)

(define-charset 'windows-1255
  "WINDOWS-1255 (Hebrew)"
  :short-name "WINDOWS-1255"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "CP1255")
(define-charset-alias 'cp1255 'windows-1255)

(define-charset 'windows-1256
  "WINDOWS-1256 (Arabic)"
  :short-name "WINDOWS-1256"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "CP1256")
(define-charset-alias 'cp1256 'windows-1256)

(define-charset 'windows-1257
  "WINDOWS-1257 (Baltic)"
  :short-name "WINDOWS-1257"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "CP1257")
(define-charset-alias 'cp1257 'windows-1257)

(define-charset 'windows-1258
  "WINDOWS-1258 (Viet Nam)"
  :short-name "WINDOWS-1258"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "CP1258")
(define-charset-alias 'cp1258 'windows-1258)

(define-charset 'next
  "NEXT"
  :short-name "NEXT"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "NEXTSTEP")

(define-charset 'cp1125
  "CP1125"
  :short-name "CP1125"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "CP1125")
(define-charset-alias 'ruscii 'cp1125)
;; Original name for cp1125, says Serhii Hlodin <hlodin@lutsk.bank.gov.ua>
(define-charset-alias 'cp866u 'cp1125)

;; FIXME: Cf. iconv, https://czyborra.com/charsets/codepages.html
;; shows this as not ASCII compatible, with various graphics in
;; 0x01-0x1F.
(define-charset 'cp437
  "CP437 (MS-DOS United States, Australia, New Zealand, South Africa)"
  :short-name "CP437"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM437")

(define-charset 'cp720
  "CP720 (Arabic)"
  :short-name "CP720"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "CP720")

(define-charset 'cp737
  "CP737 (PC Greek)"
  :short-name "CP737"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "CP737")

(define-charset 'cp775
  "CP775 (PC Baltic)"
  :short-name "CP775"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "CP775")

(define-charset 'cp851
  "CP851 (Greek)"
  :short-name "CP851"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM851")

(define-charset 'cp852
  "CP852 (MS-DOS Latin-2)"
  :short-name "CP852"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM852")

(define-charset 'cp855
  "CP855 (IBM Cyrillic)"
  :short-name "CP855"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM855")

(define-charset 'cp857
  "CP857 (IBM Turkish)"
  :short-name "CP857"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM857")

(define-charset 'cp858
  "CP858 (Multilingual Latin I + Euro)"
  :short-name "CP858"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "CP858")
(define-charset-alias 'cp00858 'cp858)	; IANA has IBM00858/CP00858

(define-charset 'cp860
  "CP860 (MS-DOS Portuguese)"
  :short-name "CP860"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM860")

(define-charset 'cp861
  "CP861 (MS-DOS Icelandic)"
  :short-name "CP861"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM861")

(define-charset 'cp862
  "CP862 (PC Hebrew)"
  :short-name "CP862"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM862")

(define-charset 'cp863
  "CP863 (MS-DOS Canadian French)"
  :short-name "CP863"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM863")

(define-charset 'cp864
  "CP864 (PC Arabic)"
  :short-name "CP864"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM864")

(define-charset 'cp865
  "CP865 (MS-DOS Nordic)"
  :short-name "CP865"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM865")

(define-charset 'cp869
  "CP869 (IBM Modern Greek)"
  :short-name "CP869"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM869")

(define-charset 'cp874
  "CP874 (IBM Thai)"
  :short-name "CP874"
  :code-space [0 255]
  :ascii-compatible-p t
  :map "IBM874")

;; For Arabic, we need three different types of character sets.
;; Digits are of direction left-to-right and of width 1-column.
;; Others are of direction right-to-left and of width 1-column or
;; 2-column.
(define-charset 'arabic-digit
  "Arabic digit"
  :short-name "Arabic digit"
  :iso-final-char ?2
  :emacs-mule-id 164
  :supplementary-p t
  :code-space [34 42]
  :code-offset #x0600)

(define-charset 'arabic-1-column
  "Arabic 1-column"
  :short-name "Arabic 1-col"
  :long-name "Arabic 1-column"
  :iso-final-char ?3
  :emacs-mule-id 165
  :supplementary-p t
  :code-space [33 126]
  :code-offset #x200100)

(define-charset 'arabic-2-column
  "Arabic 2-column"
  :short-name "Arabic 2-col"
  :long-name "Arabic 2-column"
  :iso-final-char ?4
  :emacs-mule-id 224
  :supplementary-p t
  :code-space [33 126]
  :code-offset #x200180)

;; Lao script.
;; Codes 0x21..0x7E are mapped to Unicode U+0E81..U+0EDF.
;; Not all of them are defined in Unicode.
(define-charset 'lao
  "Lao characters (ISO10646 0E81..0EDF)"
  :short-name "Lao"
  :iso-final-char ?1
  :emacs-mule-id 167
  :supplementary-p t
  :code-space [33 126]
  :code-offset #x0E81)

(define-charset 'mule-lao
  "Lao characters (ISO10646 0E81..0EDF)"
  :short-name "Lao"
  :code-space [0 255]
  :supplementary-p t
  :superset '(ascii eight-bit-control (lao . 128)))


;; Indian scripts.  Symbolic charset for data exchange.  Glyphs are
;; not assigned.  They are automatically converted to each Indian
;; script which IS-13194 supports.

(define-charset 'indian-is13194
  "7-bit representation of IS 13194 (ISCII) for Devanagari"
  :short-name "IS 13194 (DEV)"
  :long-name "Indian IS 13194 (DEV)"
  :iso-final-char ?5
  :emacs-mule-id 225
  :supplementary-p t
  :code-space [33 126]
  :code-offset #x180000
  :unify-map "MULE-is13194")

(let ((code-offset #x180100))
  (dolist (script '(devanagari sanskrit bengali tamil telugu assamese
			       oriya kannada malayalam gujarati punjabi))
    (define-charset (intern (format "%s-cdac" script))
      (format
       "Glyphs of %s script for CDAC font.  Subset of `indian-glyph'."
       (capitalize (symbol-name script)))
      :short-name (format "CDAC %s glyphs" (capitalize (symbol-name script)))
      :supplementary-p t
      :code-space [0 255]
      :code-offset code-offset)
    (setq code-offset (+ code-offset #x100)))

  (dolist (script '(devanagari bengali punjabi gujarati
			       oriya tamil telugu kannada malayalam))
    (define-charset (intern (format "%s-akruti" script))
      (format
       "Glyphs of %s script for AKRUTI font.  Subset of `indian-glyph'."
       (capitalize (symbol-name script)))
      :short-name (format "AKRUTI %s glyphs" (capitalize (symbol-name script)))
      :supplementary-p t
      :code-space [0 255]
      :code-offset code-offset)
    (setq code-offset (+ code-offset #x100))))

(define-charset 'indian-glyph
  "Glyphs for Indian characters."
  :short-name "Indian glyph"
  :iso-final-char ?4
  :emacs-mule-id 240
  :supplementary-p t
  :code-space [32 127 32 127]
  :code-offset #x180100)

;; Actual Glyph for 1-column width.
(define-charset 'indian-1-column
  "Indian charset for 1-column width glyphs."
  :short-name "Indian 1-col"
  :long-name "Indian 1 Column"
  :iso-final-char ?6
  :emacs-mule-id  251
  :supplementary-p t
  :code-space [33 126 33 126]
  :code-offset #x184000)

;; Actual Glyph for 2-column width.
(define-charset 'indian-2-column
  "Indian charset for 2-column width glyphs."
  :short-name "Indian 2-col"
  :long-name "Indian 2 Column"
  :iso-final-char ?5
  :emacs-mule-id  251
  :supplementary-p t
  :code-space [33 126 33 126]
  :code-offset #x184000)

(define-charset 'tibetan
  "Tibetan characters"
  :iso-final-char ?7
  :short-name "Tibetan 2-col"
  :long-name "Tibetan 2 column"
  :iso-final-char ?7
  :emacs-mule-id 252
  :unify-map "MULE-tibetan"
  :supplementary-p t
  :code-space [33 126 33 37]
  :code-offset #x190000)

(define-charset 'tibetan-1-column
  "Tibetan 1 column glyph"
  :short-name "Tibetan 1-col"
  :long-name "Tibetan 1 column"
  :iso-final-char ?8
  :emacs-mule-id 241
  :supplementary-p t
  :code-space [33 126 33 37]
  :code-offset #x190000)

;; Subsets of Unicode.
(define-charset 'mule-unicode-2500-33ff
  "Unicode characters of the range U+2500..U+33FF."
  :short-name "Unicode subset 2"
  :long-name "Unicode subset (U+2500..U+33FF)"
  :iso-final-char ?2
  :emacs-mule-id 242
  :supplementary-p t
  :code-space [#x20 #x7f #x20 #x47]
  :code-offset #x2500)

(define-charset 'mule-unicode-e000-ffff
  "Unicode characters of the range U+E000..U+FFFF."
  :short-name "Unicode subset 3"
  :long-name "Unicode subset (U+E000+FFFF)"
  :iso-final-char ?3
  :emacs-mule-id 243
  :supplementary-p t
  :code-space [#x20 #x7F #x20 #x75]
  :code-offset #xE000
  :max-code 30015)			; U+FFFF

(define-charset 'mule-unicode-0100-24ff
  "Unicode characters of the range U+0100..U+24FF."
  :short-name "Unicode subset"
  :long-name "Unicode subset (U+0100..U+24FF)"
  :iso-final-char ?1
  :emacs-mule-id 244
  :supplementary-p t
  :code-space [#x20 #x7F #x20 #x7F]
  :code-offset #x100)

(define-charset 'unicode-bmp
  "Unicode Basic Multilingual Plane (U+0000..U+FFFF)"
  :short-name "Unicode BMP"
  :code-space [0 255 0 255]
  :code-offset 0)

(define-charset 'unicode-smp
  "Unicode Supplementary Multilingual Plane (U+10000..U+1FFFF)"
  :short-name "Unicode SMP "
  :code-space [0 255 0 255]
  :code-offset #x10000)

(define-charset 'unicode-sip
  "Unicode Supplementary Ideographic Plane (U+20000..U+2FFFF)"
  :short-name "Unicode SIP"
  :code-space [0 255 0 255]
  :code-offset #x20000)

(define-charset 'unicode-ssp
  "Unicode Supplementary Special-purpose Plane (U+E0000..U+EFFFF)"
  :short-name "Unicode SSP"
  :code-space [0 255 0 255]
  :code-offset #xE0000)

(define-charset 'ethiopic
  "Ethiopic characters for Amharic and Tigrigna."
  :short-name "Ethiopic"
  :long-name "Ethiopic characters"
  :iso-final-char ?3
  :emacs-mule-id  245
  :supplementary-p t
  :unify-map "MULE-ethiopic"
  :code-space [33 126 33 126]
  :code-offset #x1A0000)

(define-charset 'mac-roman
  "Mac Roman charset"
  :short-name "Mac Roman"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "MACINTOSH")

;; Fixme: modern EBCDIC variants, e.g. IBM00924?
(define-charset 'ebcdic-us
  "US version of EBCDIC"
  :short-name "EBCDIC-US"
  :code-space [0 255]
  :mime-charset 'ebcdic-us
  :map "EBCDICUS")

(define-charset 'ebcdic-uk
  "UK version of EBCDIC"
  :short-name "EBCDIC-UK"
  :code-space [0 255]
  :mime-charset 'ebcdic-uk
  :map "EBCDICUK")

(define-charset 'ibm038
  "International version of EBCDIC"
  :short-name "IBM038"
  :code-space [0 255]
  :mime-charset 'ibm038
  :map "IBM038")
(define-charset-alias 'ebcdic-int 'ibm038)
(define-charset-alias 'cp038 'ibm038)

(define-charset 'ibm256
  "Netherlands version of EBCDIC"
  :short-name "IBM256"
  :code-space [0 255]
  :mime-charset 'ibm256
  :map "IBM256")

(define-charset 'ibm273
  "Austrian / German version of EBCDIC"
  :short-name "IBM273"
  :code-space [0 255]
  :mime-charset 'ibm273
  :map "IBM273")

(define-charset 'ibm274
  "Belgian version of EBCDIC"
  :short-name "IBM274"
  :code-space [0 255]
  :mime-charset 'ibm274
  :map "IBM274")

(define-charset 'ibm275
  "Brazilian version of EBCDIC"
  :short-name "IBM275"
  :code-space [0 255]
  :mime-charset 'ibm275
  :map "IBM275")

(define-charset 'ibm277
  "Danish / Norwegian version of EBCDIC"
  :short-name "IBM277"
  :code-space [0 255]
  :mime-charset 'ibm277
  :map "IBM277")

(define-charset 'ibm278
  "Finnish / Swedish version of EBCDIC"
  :short-name "IBM278"
  :code-space [0 255]
  :mime-charset 'ibm278
  :map "IBM278")

(define-charset 'ibm280
  "Italian version of EBCDIC"
  :short-name "IBM280"
  :code-space [0 255]
  :mime-charset 'ibm270
  :map "IBM280")

(define-charset 'ibm281
  "Japanese-E version of EBCDIC"
  :short-name "IBM281"
  :code-space [0 255]
  :mime-charset 'ibm281
  :map "IBM281")

(define-charset 'ibm284
  "Spanish version of EBCDIC"
  :short-name "IBM284"
  :code-space [0 255]
  :mime-charset 'ibm284
  :map "IBM284")

(define-charset 'ibm285
  "UK english version of EBCDIC"
  :short-name "IBM285"
  :code-space [0 255]
  :mime-charset 'ibm285
  :map "IBM285")

(define-charset 'ibm290
  "Japanese katakana version of EBCDIC"
  :short-name "IBM290"
  :code-space [0 255]
  :mime-charset 'ibm290
  :map "IBM290")

(define-charset 'ibm297
  "French version of EBCDIC"
  :short-name "IBM297"
  :code-space [0 255]
  :mime-charset 'ibm297
  :map "IBM297")

(define-charset 'ibm1047
  ;; Says groff:
  "IBM1047, `EBCDIC Latin 1/Open Systems' used by OS/390 Unix."
  :short-name "IBM1047"
  :code-space [0 255]
  :mime-charset 'ibm1047
  :map "IBM1047")
(define-charset-alias 'cp1047 'ibm1047)

(define-charset 'hp-roman8
  "Encoding used by Hewlet-Packard printer software"
  :short-name "HP-ROMAN8"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "HP-ROMAN8")

;; To make a coding system with this, a pre-write-conversion should
;; account for the commented-out multi-valued code points in
;; stdenc.map.
(define-charset 'adobe-standard-encoding
  "Adobe `standard encoding' used in PostScript"
  :short-name "ADOBE-STANDARD-ENCODING"
  :code-space [#x20 255]
  :map "stdenc")

(define-charset 'symbol
  "Adobe symbol encoding used in PostScript"
  :short-name "ADOBE-SYMBOL"
  :code-space [#x20 255]
  :map "symbol")

(define-charset 'ibm850
  "DOS codepage 850 (Latin-1)"
  :short-name "IBM850"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "IBM850")
(define-charset-alias 'cp850 'ibm850)

(define-charset 'mik
  "Bulgarian DOS codepage"
  :short-name "MIK"
  :ascii-compatible-p t
  :code-space [0 255]
  :map "MIK")

(define-charset 'ptcp154
  "ParaType codepage (Asian Cyrillic)"
  :short-name "PT154"
  :ascii-compatible-p t
  :code-space [0 255]
  :mime-charset 'pt154
  :map "PTCP154")
(define-charset-alias 'pt154 'ptcp154)
(define-charset-alias 'cp154 'ptcp154)

(define-charset 'gb18030-2-byte
  "GB18030 2-byte (0x814E..0xFEFE)"
  :code-space [#x40 #xFE #x81 #xFE]
  :supplementary-p t
  :map "GB180302")

(define-charset 'gb18030-4-byte-bmp
  "GB18030 4-byte for BMP (0x81308130-0x8431A439)"
  :code-space [#x30 #x39 #x81 #xFE #x30 #x39 #x81 #x84]
  :supplementary-p t
  :map "GB180304")

(define-charset 'gb18030-4-byte-smp
  "GB18030 4-byte for SMP (0x90308130-0xE3329A35)"
  :code-space [#x30 #x39 #x81 #xFE #x30 #x39 #x90 #xE3]
  :min-code '(#x9030 . #x8130)
  :max-code '(#xE332 . #x9A35)
  :supplementary-p t
  :code-offset #x10000)

(define-charset 'gb18030-4-byte-ext-1
  "GB18030 4-byte (0x8431A530-0x8F39FE39)"
  :code-space [#x30 #x39 #x81 #xFE #x30 #x39 #x84 #x8F]
  :min-code '(#x8431 . #xA530)
  :max-code '(#x8F39 . #xFE39)
  :supplementary-p t
  :code-offset #x200000			; ... #x22484B
  )

(define-charset 'gb18030-4-byte-ext-2
  "GB18030 4-byte (0xE3329A36-0xFE39FE39)"
  :code-space [#x30 #x39 #x81 #xFE #x30 #x39 #xE3 #xFE]
  :min-code '(#xE332 . #x9A36)
  :max-code '(#xFE39 . #xFE39)
  :supplementary-p t
  :code-offset #x22484C			; ... #x279f93
  )

(define-charset 'gb18030
  "GB18030"
  :code-space [#x00 #xFF #x00 #xFE #x00 #xFE #x00 #xFE]
  :min-code 0
  :max-code '(#xFE39 . #xFE39)
  :superset '(ascii gb18030-2-byte
		    gb18030-4-byte-bmp gb18030-4-byte-smp
		    gb18030-4-byte-ext-1 gb18030-4-byte-ext-2))

(define-charset 'chinese-cns11643-15
  "CNS11643 Plane 15 Chinese Traditional"
  :short-name  "CNS11643-15"
  :long-name "CNS11643-15 (Chinese traditional)"
  :code-space [33 126 33 126]
  :code-offset #x28083A                 ; Right after 'big5-hkscs.
  :unify-map "CNS-F")

(unify-charset 'chinese-gb2312)
(unify-charset 'chinese-gbk)
(unify-charset 'chinese-cns11643-1)
(unify-charset 'chinese-cns11643-2)
(unify-charset 'chinese-cns11643-3)
(unify-charset 'chinese-cns11643-4)
(unify-charset 'chinese-cns11643-5)
(unify-charset 'chinese-cns11643-6)
(unify-charset 'chinese-cns11643-7)
(unify-charset 'chinese-cns11643-15)
(unify-charset 'big5)
(unify-charset 'chinese-big5-1)
(unify-charset 'chinese-big5-2)
(unify-charset 'big5-hkscs)
(unify-charset 'korean-ksc5601)
(unify-charset 'vietnamese-viscii-lower)
(unify-charset 'vietnamese-viscii-upper)
(unify-charset 'chinese-sisheng)
(unify-charset 'ipa)
(unify-charset 'tibetan)
(unify-charset 'ethiopic)
(unify-charset 'indian-is13194)
(unify-charset 'japanese-jisx0208-1978)
(unify-charset 'japanese-jisx0208)
(unify-charset 'japanese-jisx0212)
(unify-charset 'japanese-jisx0213-1)
(unify-charset 'japanese-jisx0213-2)


;; These are tables for translating characters on decoding and
;; encoding.
;; Fixme: these aren't used now -- should they be?
(setq standard-translation-table-for-decode nil)

(setq standard-translation-table-for-encode nil)

;;; Make fundamental coding systems.

;; The coding system `no-conversion' and `undecided' are already
;; defined in coding.c as below:
;;
;; (define-coding-system 'no-conversion
;;   "..."
;;   :coding-type 'raw-text
;;   ...)
;; (define-coding-system 'undecided
;;   "..."
;;   :coding-type 'undecided
;;   ...)

(define-coding-system-alias 'binary 'no-conversion)
(define-coding-system-alias 'unix 'undecided-unix)
(define-coding-system-alias 'dos 'undecided-dos)
(define-coding-system-alias 'mac 'undecided-mac)

(define-coding-system 'prefer-utf-8
  "Like `undecided' but prefer UTF-8 when appropriate.
On decoding, if the source contains 8-bit codes and they all
are valid UTF-8 sequences, detect the source as UTF-8 encoding
regardless of the coding priority.
On encoding, if the source contains non-ASCII characters, encode them
by UTF-8."
  :coding-type 'undecided
  :mnemonic ?-
  :charset-list '(emacs)
  :prefer-utf-8 t
  :inhibit-null-byte-detection 0
  :inhibit-iso-escape-detection 0)

(define-coding-system 'raw-text
  "Raw text, which means text contains random 8-bit codes.
Encoding text with this coding system produces the actual byte
sequence of the text in buffers and strings.  An exception is made for
characters from the `eight-bit' character set.  Each of them is encoded
into a single byte.

When you visit a file with this coding, the file is read into a
unibyte buffer as is (except for EOL format), thus each byte of a file
is treated as a character."
  :coding-type 'raw-text
  :for-unibyte t
  :mnemonic ?t)

(define-coding-system 'no-conversion-multibyte
  "Like `no-conversion' but don't read a file into a unibyte buffer."
  :coding-type 'raw-text
  :eol-type 'unix
  :mnemonic ?=)

(define-coding-system 'iso-latin-1
  "ISO 2022 based 8-bit encoding for Latin-1 (MIME:ISO-8859-1)."
  :coding-type 'charset
  :mnemonic ?1
  :charset-list '(iso-8859-1)
  :mime-charset 'iso-8859-1)

(define-coding-system-alias 'iso-8859-1 'iso-latin-1)
(define-coding-system-alias 'latin-1 'iso-latin-1)

;; Coding systems not specific to each language environment.

(define-coding-system 'emacs-mule
 "Emacs 21 internal format used in buffer and string."
 :coding-type 'emacs-mule
 :charset-list 'emacs-mule
 :mnemonic ?M)

(define-coding-system 'utf-8
  "UTF-8 (no signature (BOM))"
  :coding-type 'utf-8
  :mnemonic ?U
  :charset-list '(unicode)
  :mime-charset 'utf-8)

(define-coding-system 'utf-8-with-signature
  "UTF-8 (with signature (BOM))"
  :coding-type 'utf-8
  :mnemonic ?U
  :charset-list '(unicode)
  :bom t)

(define-coding-system 'utf-8-auto
  "UTF-8 (auto-detect signature (BOM))"
  :coding-type 'utf-8
  :mnemonic ?U
  :charset-list '(unicode)
  :bom '(utf-8-with-signature . utf-8))

(define-coding-system-alias 'mule-utf-8 'utf-8)
;; See this page:
;; https://docs.microsoft.com/en-us/windows/desktop/intl/code-page-identifiers
;; Starting with Windows 10, people are trying to set their systems to
;; use UTF-8 , so we had better recognized this alias:
(define-coding-system-alias 'cp65001 'utf-8)

(define-coding-system 'utf-8-emacs
  "Support for all Emacs characters (including non-Unicode characters)."
  :coding-type 'utf-8
  :mnemonic ?U
  :charset-list '(emacs))

;; The encoding used internally.  This encoding is meant to be able to save
;; any multibyte buffer without losing information.  It can change between
;; Emacs releases, tho, so should only be used for internal files.
(define-coding-system-alias 'emacs-internal 'utf-8-emacs-unix)

(define-coding-system 'utf-16le
  "UTF-16LE (little endian, no signature (BOM))."
  :coding-type 'utf-16
  :mnemonic ?U
  :charset-list '(unicode)
  :endian 'little
  :mime-text-unsuitable t
  :mime-charset 'utf-16le)

(define-coding-system 'utf-16be
  "UTF-16BE (big endian, no signature (BOM))."
  :coding-type 'utf-16
  :mnemonic ?U
  :charset-list '(unicode)
  :endian 'big
  :mime-text-unsuitable t
  :mime-charset 'utf-16be)

(define-coding-system 'utf-16le-with-signature
  "UTF-16 (little endian, with signature (BOM))."
  :coding-type 'utf-16
  :mnemonic ?U
  :charset-list '(unicode)
  :bom t
  :endian 'little
  :mime-text-unsuitable t
  :mime-charset 'utf-16)

(define-coding-system 'utf-16be-with-signature
  "UTF-16 (big endian, with signature (BOM))."
  :coding-type 'utf-16
  :mnemonic ?U
  :charset-list '(unicode)
  :bom t
  :endian 'big
  :mime-text-unsuitable t
  :mime-charset 'utf-16)

(define-coding-system 'utf-16
  "UTF-16 (detect endian on decoding, use big endian on encoding with BOM)."
  :coding-type 'utf-16
  :mnemonic ?U
  :charset-list '(unicode)
  :bom '(utf-16le-with-signature . utf-16be-with-signature)
  :endian 'big
  :mime-text-unsuitable t
  :mime-charset 'utf-16)

;; Backwards compatibility (old names, also used by Mule-UCS).  We
;; prefer the MIME names.
(define-coding-system-alias 'utf-16-le 'utf-16le-with-signature)
(define-coding-system-alias 'utf-16-be 'utf-16be-with-signature)


(define-coding-system 'iso-2022-7bit
  "ISO 2022 based 7-bit encoding using only G0."
  :coding-type 'iso-2022
  :mnemonic ?J
  :charset-list 'iso-2022
  :designation [(ascii t) nil nil nil]
  :flags '(short ascii-at-eol ascii-at-cntl 7-bit designation composition))

(define-coding-system 'iso-2022-7bit-ss2
  "ISO 2022 based 7-bit encoding using SS2 for 96-charset."
  :coding-type 'iso-2022
  :mnemonic ?$
  :charset-list 'iso-2022
  :designation [(ascii 94) nil (nil 96) nil]
  :flags '(short ascii-at-eol ascii-at-cntl 7-bit
		 designation single-shift composition))

(define-coding-system 'iso-2022-7bit-lock
  "ISO-2022 coding system using Locking-Shift for 96-charset."
  :coding-type 'iso-2022
  :mnemonic ?&
  :charset-list 'iso-2022
  :designation [(ascii 94) (nil 96) nil nil]
  :flags '(ascii-at-eol ascii-at-cntl 7-bit
			designation locking-shift composition))

(define-coding-system-alias 'iso-2022-int-1 'iso-2022-7bit-lock)

(define-coding-system 'iso-2022-7bit-lock-ss2
  "Mixture of ISO-2022-JP, ISO-2022-KR, and ISO-2022-CN."
  :coding-type 'iso-2022
  :mnemonic ?i
  :charset-list '(ascii
		  japanese-jisx0208 japanese-jisx0208-1978 latin-jisx0201
		  korean-ksc5601
		  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 94)
		(nil korean-ksc5601 chinese-gb2312 chinese-cns11643-1 96)
		(nil chinese-cns11643-2)
		(nil chinese-cns11643-3 chinese-cns11643-4 chinese-cns11643-5
		     chinese-cns11643-6 chinese-cns11643-7)]
  :flags '(short ascii-at-eol ascii-at-cntl 7-bit locking-shift
		 single-shift init-bol))

(define-coding-system-alias 'iso-2022-cjk 'iso-2022-7bit-lock-ss2)

(define-coding-system 'iso-2022-8bit-ss2
  "ISO 2022 based 8-bit encoding using SS2 for 96-charset."
  :coding-type 'iso-2022
  :mnemonic ?@
  :charset-list 'iso-2022
  :designation [(ascii 94) nil (nil 96) nil]
  :flags '(ascii-at-eol ascii-at-cntl designation single-shift composition))

(define-coding-system 'compound-text
  "Compound text based generic encoding.
This coding system is an extension of X's \"Compound Text Encoding\".
It encodes many characters using the normal ISO-2022 designation sequences,
but it doesn't support extended segments of CTEXT."
  :coding-type 'iso-2022
  :mnemonic ?x
  :charset-list 'iso-2022
  :designation [(ascii 94) (latin-iso8859-1 katakana-jisx0201 96) nil nil]
  :flags '(ascii-at-eol ascii-at-cntl long-form
			designation locking-shift single-shift composition)
  ;; Fixme: this isn't a valid MIME charset and has to be
  ;; special-cased elsewhere  -- fx
  :mime-charset 'x-ctext)

(define-coding-system-alias  'x-ctext 'compound-text)
(define-coding-system-alias  'ctext 'compound-text)

;; Same as compound-text, but doesn't produce composition escape
;; sequences.  Used in post-read and pre-write conversions of
;; compound-text-with-extensions, see mule.el.  Note that this should
;; not have a mime-charset property, to prevent it from showing up
;; close to the beginning of coding systems ordered by priority.
(define-coding-system 'ctext-no-compositions
 "Compound text based generic encoding.

Like `compound-text', but does not produce escape sequences for compositions."
  :coding-type 'iso-2022
  :mnemonic ?x
  :charset-list 'iso-2022
  :designation [(ascii 94) (latin-iso8859-1 katakana-jisx0201 96) nil nil]
  :flags '(ascii-at-eol ascii-at-cntl
			designation locking-shift single-shift))

(define-coding-system 'compound-text-with-extensions
 "Compound text encoding with ICCCM Extended Segment extensions.

See the variables `ctext-standard-encodings' and
`ctext-non-standard-encodings-alist' for the detail about how
extended segments are handled.

This coding system should be used only for X selections.  It is inappropriate
for decoding and encoding files, process I/O, etc."
  :coding-type 'iso-2022
  :mnemonic ?x
  :charset-list 'iso-2022
  :designation [(ascii 94) (latin-iso8859-1 katakana-jisx0201 96) nil nil]
  :flags '(ascii-at-eol ascii-at-cntl long-form
			designation locking-shift single-shift)
  :post-read-conversion 'ctext-post-read-conversion
  :pre-write-conversion 'ctext-pre-write-conversion
  :mime-charset 'x-ctext)

(define-coding-system-alias
  'x-ctext-with-extensions 'compound-text-with-extensions)
(define-coding-system-alias
  'ctext-with-extensions 'compound-text-with-extensions)

(define-coding-system 'us-ascii
  "Encode ASCII as-is and encode non-ASCII characters to `?'."
  :coding-type 'charset
  :mnemonic ?-
  :charset-list '(ascii)
  :default-char ??
  :mime-charset 'us-ascii)

(define-coding-system-alias 'iso-safe 'us-ascii)
(define-coding-system-alias 'ascii 'us-ascii)

(define-coding-system 'utf-7
  "UTF-7 encoding of Unicode (RFC 2152)."
  :coding-type 'utf-8
  :mnemonic ?u
  :mime-charset 'utf-7
  :charset-list '(unicode)
  :pre-write-conversion 'utf-7-pre-write-conversion
  :post-read-conversion 'utf-7-post-read-conversion)
;; 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 'utf-7 :ascii-compatible-p nil)

(define-coding-system 'utf-7-imap
  "UTF-7 encoding of Unicode, IMAP version (RFC 2060)"
  :coding-type 'utf-8
  :mnemonic ?u
  :charset-list '(unicode)
  :pre-write-conversion 'utf-7-imap-pre-write-conversion
  :post-read-conversion 'utf-7-imap-post-read-conversion)
;; See comment for utf-7 above.
(coding-system-put 'utf-7-imap :ascii-compatible-p nil)

;; Use us-ascii for terminal output if some other coding system is not
;; specified explicitly.
(set-safe-terminal-coding-system-internal 'us-ascii)

;; The other coding-systems are defined in each language specific
;; files under lisp/language.

;; Normally, set coding system to `undecided' before reading a file.
;; Compiled Emacs Lisp files (*.elc) are not decoded at all,
;; but we regard them as containing multibyte characters.
;; Tar files are not decoded at all, but we treat them as raw bytes.

(setq file-coding-system-alist
      (mapcar (lambda (arg) (cons (purecopy (car arg)) (cdr arg)))
      '(("\\.elc\\'" . utf-8-emacs)
	("\\.el\\'" . prefer-utf-8)
	("\\.utf\\(-8\\)?\\'" . utf-8)
	("\\.xml\\'" . xml-find-file-coding-system)
	;; We use raw-text for reading loaddefs.el so that if it
	;; happens to have DOS or Mac EOLs, they are converted to
	;; newlines.  This is required to make the special treatment
	;; of the "\ newline" combination in loaddefs.el, which marks
	;; the beginning of a doc string, work.
	("\\(\\`\\|/\\)loaddefs.el\\'" . (raw-text . raw-text-unix))
	("\\.tar\\'" . (no-conversion . no-conversion))
	( "\\.po[tx]?\\'\\|\\.po\\." . po-find-file-coding-system)
	("\\.\\(tex\\|ltx\\|dtx\\|drv\\)\\'" . latexenc-find-file-coding-system)
	("" . (undecided . nil)))))


;;; Setting coding categories and their priorities.

;; This setting is just to read an Emacs Lisp source files which
;; contain multilingual text while dumping Emacs.  More appropriate
;; values are set by the command `set-language-environment' for each
;; language environment.

(set-coding-system-priority
 'iso-latin-1
 'utf-8
 'iso-2022-7bit
 )


;;; Miscellaneous settings.

;; Make all multibyte characters self-insert.
(set-char-table-range (nth 1 global-map)
		      (cons 128 (max-char))
		      'self-insert-command)

(aset latin-extra-code-table ?\221 t)
(aset latin-extra-code-table ?\222 t)
(aset latin-extra-code-table ?\223 t)
(aset latin-extra-code-table ?\224 t)
(aset latin-extra-code-table ?\225 t)
(aset latin-extra-code-table ?\226 t)

(defcustom password-word-equivalents
  '("password" "passcode" "passphrase" "pass phrase" "pin"
    "decryption key" "encryption key" ; From ccrypt.
    ; These are sorted according to the GNU en_US locale.
    "암호"		; ko
    "パスワード"	; ja
    "ପ୍ରବେଶ ସଙ୍କେତ"	; or
    "ពាក្យសម្ងាត់"		; km
    "adgangskode"	; da
    "contraseña"	; es
    "contrasenya"	; ca
    "geslo"		; sl
    "hasło"		; pl
    "heslo"		; cs, sk
    "iphasiwedi"	; zu
    "jelszó"		; hu
    "lösenord"		; sv
    "lozinka"		; hr, sr
    "mật khẩu"		; vi
    "mot de passe"	; fr
    "parola"		; tr
    "pasahitza"		; eu
    "passord"		; nb
    "passwort"		; de
    "pasvorto"		; eo
    "salasana"		; fi
    "senha"		; pt
    "slaptažodis"	; lt
    "wachtwoord"	; nl
    "كلمة السر"		; ar
    "ססמה"		; he
    "лозинка"		; sr
    "пароль"		; kk, ru, uk
    "गुप्तशब्द"		; mr
    "शब्दकूट"		; hi
    "પાસવર્ડ"		; gu
    "సంకేతపదము"		; te
    "ਪਾਸਵਰਡ"		; pa
    "ಗುಪ್ತಪದ"		; kn
    "கடவுச்சொல்"		; ta
    "അടയാളവാക്ക്"		; ml
    "গুপ্তশব্দ"		; as
    "পাসওয়ার্ড"		; bn_IN
    "රහස්පදය"		; si
    "密码"		; zh_CN
    "密碼"		; zh_TW
    )
  "List of words equivalent to \"password\".
This is used by Shell mode and other parts of Emacs to recognize
password prompts, including prompts in languages other than
English.  Different case choices should not be assumed to be
included; callers should bind `case-fold-search' to t."
  :type '(repeat string)
  :version "27.1"
  :group 'processes)

;; (describe-char-fold-equivalences ?:)
;; The last entry is taken from history.
(defcustom password-colon-equivalents
  '(?\u003a ; ?\N{COLON}
    ?\uff1a ; ?\N{FULLWIDTH COLON}
    ?\ufe55 ; ?\N{SMALL COLON}
    ?\ufe13 ; ?\N{PRESENTATION FORM FOR VERTICAL COLON}
    ?\u17d6 ; ?\N{KHMER SIGN CAMNUC PII KUUH}
    )
  "List of characters equivalent to trailing colon in \"password\" prompts."
  :type '(repeat character)
  :version "30.1"
  :group 'processes)

;; The old code-pages library is obsoleted by coding systems based on
;; the charsets defined in this file but might be required by user
;; code.
(provide 'code-pages)

;;; mule-conf.el ends here
