lisp/language/cyrillic.el

   1 ;;; cyrillic.el --- Support for Cyrillic -*- coding: iso-2022-7bit; -*-
   2
   3 ;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
   4 ;; Licensed to the Free Software Foundation.
   5
   6 ;; Keywords: multilingual, Cyrillic
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Commentary:
  26
  27 ;; The character set ISO8859-5 is supported.  KOI-8 and ALTERNATIVNYJ
  28 ;; are converted to ISO8859-5 internally.
  29
  30 ;;; Code:
  31
  32 ;; Cyrillic (general)
  33
  34 ;; ISO-8859-5 staff
  35
  36 (make-coding-system
  37  'cyrillic-iso-8bit 2 ?5
  38  "ISO 2022 based 8-bit encoding for Cyrillic script (MIME:ISO-8859-5)"
  39  '(ascii cyrillic-iso8859-5  nil nil
  40    nil nil nil nil nil nil nil)
  41  '((safe-charsets ascii cyrillic-iso8859-5)
  42    (mime-charset . iso-8859-5)))
  43
  44 (define-coding-system-alias 'iso-8859-5 'cyrillic-iso-8bit)
  45
  46 (set-language-info-alist
  47  "Cyrillic-ISO" '((charset cyrillic-iso8859-5)
  48                   (coding-system cyrillic-iso-8bit)
  49                   (coding-priority cyrillic-iso-8bit)
  50                   (input-method . "cyrillic-yawerty")
  51                   (nonascii-translation . cyrillic-iso8859-5)
  52                   (unibyte-display . cyrillic-iso-8bit)
  53                   (features cyril-util)
  54                   (sample-text . "Russian (\e,L@caaZXY\e(B)       \e,L7T`PRabRcYbU\e(B!")
  55                   (documentation . "Support for Cyrillic ISO-8859-5."))
  56  '("Cyrillic"))
  57
  58 ;; KOI-8 staff
  59
  60 (eval-and-compile
  61
  62 (defvar cyrillic-koi8-r-decode-table
  63   [
  64    0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
  65    16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
  66    32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
  67    48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
  68    64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
  69    80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
  70    96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
  71    112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
  72    128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143
  73    144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
  74    160 161 162 ?\e,Lq\e(B  164 165 166 167 168 169 170 171 172 173 174 175
  75    176 177 178 ?\e,L!\e(B  180 181 182 183 184 185 186 187 188 189 190 191
  76    ?\e,Ln\e(B  ?\e,LP\e(B  ?\e,LQ\e(B  ?\e,Lf\e(B  ?\e,LT\e(B  ?\e,LU\e(B  ?\e,Ld\e(B  ?\e,LS\e(B  ?\e,Le\e(B  ?\e,LX\e(B  ?\e,LY\e(B  ?\e,LZ\e(B  ?\e,L[\e(B  ?\e,L\\e(B  ?\e,L]\e(B  ?\e,L^\e(B
  77    ?\e,L_\e(B  ?\e,Lo\e(B  ?\e,L`\e(B  ?\e,La\e(B  ?\e,Lb\e(B  ?\e,Lc\e(B  ?\e,LV\e(B  ?\e,LR\e(B  ?\e,Ll\e(B  ?\e,Lk\e(B  ?\e,LW\e(B  ?\e,Lh\e(B  ?\e,Lm\e(B  ?\e,Li\e(B  ?\e,Lg\e(B  ?\e,Lj\e(B
  78    ?\e,LN\e(B  ?\e,L0\e(B  ?\e,L1\e(B  ?\e,LF\e(B  ?\e,L4\e(B  ?\e,L5\e(B  ?\e,LD\e(B  ?\e,L3\e(B  ?\e,LE\e(B  ?\e,L8\e(B  ?\e,L9\e(B  ?\e,L:\e(B  ?\e,L;\e(B  ?\e,L<\e(B  ?\e,L=\e(B  ?\e,L>\e(B
  79    ?\e,L?\e(B  ?\e,LO\e(B  ?\e,L@\e(B  ?\e,LA\e(B  ?\e,LB\e(B  ?\e,LC\e(B  ?\e,L6\e(B  ?\e,L2\e(B  ?\e,LL\e(B  ?\e,LK\e(B  ?\e,L7\e(B  ?\e,LH\e(B  ?\e,LM\e(B  ?\e,LI\e(B  ?\e,LG\e(B  ?\e,LJ\e(B ]
  80   "Cyrillic KOI8-R decoding table.")
  81
  82 (defvar cyrillic-koi8-r-encode-table
  83   (let ((table (make-vector 256 32))
  84         (i 0))
  85     (while (< i 256)
  86       (let* ((ch (aref cyrillic-koi8-r-decode-table i))
  87              (split (split-char ch)))
  88         (if (eq (car split) 'cyrillic-iso8859-5)
  89             (aset table (logior (nth 1 split) 128) i)
  90           (if (/= ch 32)
  91               (aset table ch i))))
  92       (setq i (1+ i)))
  93     table)
  94   "Cyrillic KOI8-R encoding table.")
  95
  96 )
  97
  98 (define-ccl-program ccl-decode-koi8
  99   `(3
 100     ((read r0)
 101      (loop
 102       (write-read-repeat r0 ,cyrillic-koi8-r-decode-table))))
 103   "CCL program to decode KOI8.")
 104
 105 (define-ccl-program ccl-encode-koi8
 106   `(1
 107     ((read r0)
 108      (loop
 109       (if (r0 != ,(charset-id 'cyrillic-iso8859-5))
 110           (write-read-repeat r0)
 111         ((read r0)
 112          (write-read-repeat r0 , cyrillic-koi8-r-encode-table))))))
 113   "CCL program to encode KOI8.")
 114
 115 (make-coding-system
 116  'cyrillic-koi8 4
 117  ;; We used to use ?K.  It is true that ?K is more strictly correct,
 118  ;; but it is also used for Korean.
 119  ;; So people who use koi8 for languages other than Russian
 120  ;; will have to forgive us.
 121  ?R "KOI8 8-bit encoding for Cyrillic (MIME: KOI8-R)"
 122  '(ccl-decode-koi8 . ccl-encode-koi8)
 123  '((safe-charsets ascii cyrillic-iso8859-5)
 124    (mime-charset . koi8-r)
 125    (valid-codes (0 . 127) 163 179 (192 . 255))
 126    (charset-origin-alist (cyrillic-iso8859-5 "KOI8-R"
 127                                              cyrillic-encode-koi8-r-char))))
 128
 129 (define-coding-system-alias 'koi8-r 'cyrillic-koi8)
 130 (define-coding-system-alias 'koi8 'cyrillic-koi8)
 131
 132 (define-ccl-program ccl-encode-koi8-font
 133   `(0
 134     ((r1 |= 128)
 135      (r1 = r1 ,cyrillic-koi8-r-encode-table)))
 136   "CCL program to encode Cyrillic chars to KOI font.")
 137
 138 (setq font-ccl-encoder-alist
 139       (cons (cons "koi8" ccl-encode-koi8-font) font-ccl-encoder-alist))
 140
 141 (defvar cyrillic-koi8-r-nonascii-translation-table
 142   (make-translation-table-from-vector cyrillic-koi8-r-decode-table)
 143   "Value of `nonascii-translation-table' in Cyrillic-KOI8 language environment..")
 144
 145 (set-language-info-alist
 146  "Cyrillic-KOI8" `((charset cyrillic-iso8859-5)
 147                    (nonascii-translation
 148                     . ,cyrillic-koi8-r-nonascii-translation-table)
 149                    (coding-system cyrillic-koi8)
 150                    (coding-priority cyrillic-koi8)
 151                    (input-method . "cyrillic-jcuken")
 152                    (features cyril-util)
 153                    (unibyte-display . cyrillic-koi8)
 154                    (sample-text . "Russian (\e,L@caaZXY\e(B)      \e,L7T`PRabRcYbU\e(B!")
 155                    (documentation . "Support for Cyrillic KOI8-R."))
 156  '("Cyrillic"))
 157
 158 ;;; ALTERNATIVNYJ staff
 159
 160 (eval-and-compile
 161
 162 (defvar cyrillic-alternativnyj-decode-table
 163   [
 164    0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 165    16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
 166    32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47
 167    48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63
 168    64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79
 169    80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95
 170    96  97  98  99 100 101 102 103 104 105 106 107 108 109 110 111
 171    112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
 172    ?\e,L0\e(B  ?\e,L1\e(B  ?\e,L2\e(B  ?\e,L3\e(B  ?\e,L4\e(B  ?\e,L5\e(B  ?\e,L6\e(B  ?\e,L7\e(B  ?\e,L8\e(B  ?\e,L9\e(B  ?\e,L:\e(B  ?\e,L;\e(B  ?\e,L<\e(B  ?\e,L=\e(B  ?\e,L>\e(B  ?\e,L?\e(B
 173    ?\e,L@\e(B  ?\e,LA\e(B  ?\e,LB\e(B  ?\e,LC\e(B  ?\e,LD\e(B  ?\e,LE\e(B  ?\e,LF\e(B  ?\e,LG\e(B  ?\e,LH\e(B  ?\e,LI\e(B  ?\e,LJ\e(B  ?\e,LK\e(B  ?\e,LL\e(B  ?\e,LM\e(B  ?\e,LN\e(B  ?\e,LO\e(B
 174    ?\e,LP\e(B  ?\e,LQ\e(B  ?\e,LR\e(B  ?\e,LS\e(B  ?\e,LT\e(B  ?\e,LU\e(B  ?\e,LV\e(B  ?\e,LW\e(B  ?\e,LX\e(B  ?\e,LY\e(B  ?\e,LZ\e(B  ?\e,L[\e(B  ?\e,L\\e(B  ?\e,L]\e(B  ?\e,L^\e(B  ?\e,L_\e(B
 175    176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
 176    192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207
 177    208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
 178    ?\e,L`\e(B  ?\e,La\e(B  ?\e,Lb\e(B  ?\e,Lc\e(B  ?\e,Ld\e(B  ?\e,Le\e(B  ?\e,Lf\e(B  ?\e,Lg\e(B  ?\e,Lh\e(B  ?\e,Li\e(B  ?\e,Lj\e(B  ?\e,Lk\e(B  ?\e,Ll\e(B  ?\e,Lm\e(B  ?\e,Ln\e(B  ?\e,Lo\e(B
 179    ?\e,L!\e(B  ?\e,Lq\e(B  242 243 244 245 246 247 248 249 250 251 252 253 254 ?\e,Lp\e(B]
 180   "Cyrillic ALTERNATIVNYJ decoding table.")
 181
 182 (defvar cyrillic-alternativnyj-encode-table
 183   (let ((table (make-vector 256 32))
 184         (i 0))
 185     (while (< i 256)
 186       (let* ((ch (aref cyrillic-alternativnyj-decode-table i))
 187              (split (split-char ch)))
 188         (if (eq (car split) 'cyrillic-iso8859-5)
 189             (aset table (logior (nth 1 split) 128) i)
 190           (if (/= ch 32)
 191               (aset table ch i))))
 192       (setq i (1+ i)))
 193     table)
 194   "Cyrillic ALTERNATIVNYJ encoding table.")
 195
 196 )
 197
 198
 199 (define-ccl-program ccl-decode-alternativnyj
 200   `(3
 201     ((read r0)
 202      (loop
 203       (write-read-repeat r0 ,cyrillic-alternativnyj-decode-table))))
 204   "CCL program to decode Alternativnyj.")
 205
 206 (define-ccl-program ccl-encode-alternativnyj
 207   `(1
 208     ((read r0)
 209      (loop
 210       (if (r0 != ,(charset-id 'cyrillic-iso8859-5))
 211           (write-read-repeat r0)
 212         ((read r0)
 213          (write-read-repeat r0 ,cyrillic-alternativnyj-encode-table))))))
 214   "CCL program to encode Alternativnyj.")
 215
 216 (make-coding-system
 217  'cyrillic-alternativnyj 4 ?A
 218  "ALTERNATIVNYJ 8-bit encoding for Cyrillic"
 219  '(ccl-decode-alternativnyj . ccl-encode-alternativnyj)
 220  '((safe-charsets ascii cyrillic-iso8859-5)
 221    (valid-codes (0 . 175) (224 . 241) 255)
 222    (charset-origin-alist (cyrillic-iso8859-5 "ALTERNATIVNYJ"
 223                                              cyrillic-encode-koi8-r-char))))
 224
 225
 226 (define-coding-system-alias 'alternativnyj 'cyrillic-alternativnyj)
 227
 228 (define-ccl-program ccl-encode-alternativnyj-font
 229   '(0
 230     ((r1 |= 128)
 231      (r1 = r1 ,cyrillic-alternativnyj-encode-table)))
 232   "CCL program to encode Cyrillic chars to Alternativnyj font.")
 233
 234 (setq font-ccl-encoder-alist
 235       (cons (cons "alternativnyj" ccl-encode-alternativnyj-font)
 236             font-ccl-encoder-alist))
 237
 238 (defvar cyrillic-alternativnyj-nonascii-translation-table
 239   (make-translation-table-from-vector cyrillic-alternativnyj-decode-table)
 240   "Value of `nonascii-translation-table' in Cyrillic-ALT language environment.")
 241
 242 (set-language-info-alist
 243  "Cyrillic-ALT" `((charset cyrillic-iso8859-5)
 244                   (nonascii-translation
 245                    . ,cyrillic-alternativnyj-nonascii-translation-table)
 246                   (coding-system cyrillic-alternativnyj)
 247                   (coding-priority cyrillic-alternativnyj)
 248                   (input-method . "cyrillic-jcuken")
 249                   (features cyril-util)
 250                   (unibyte-display . cyrillic-alternativnyj)
 251                   (sample-text . "Russian (\e,L@caaZXY\e(B)       \e,L7T`PRabRcYbU\e(B!")
 252                   (documentation . "Support for Cyrillic ALTERNATIVNYJ."))
 253  '("Cyrillic"))
 254
 255 ;;; cyrillic.el ends here