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.  See
  28 ;; http://www.ecma.ch/ecma1/STAND/ECMA-113.HTM.  KOI-8 and
  29 ;; ALTERNATIVNYJ are converted to ISO8859-5 internally.
  30
  31 ;;; Code:
  32
  33 ;; Cyrillic (general)
  34
  35 ;; ISO-8859-5 staff
  36
  37 (make-coding-system
  38  'cyrillic-iso-8bit 2 ?5
  39  "ISO 2022 based 8-bit encoding for Cyrillic script (MIME:ISO-8859-5)"
  40  '(ascii cyrillic-iso8859-5  nil nil
  41    nil nil nil nil nil nil nil)
  42  '((safe-charsets ascii cyrillic-iso8859-5)
  43    (mime-charset . iso-8859-5)))
  44
  45 (define-coding-system-alias 'iso-8859-5 'cyrillic-iso-8bit)
  46
  47 (set-language-info-alist
  48  "Cyrillic-ISO" '((charset cyrillic-iso8859-5)
  49                   (coding-system cyrillic-iso-8bit)
  50                   (coding-priority cyrillic-iso-8bit)
  51                   (input-method . "cyrillic-yawerty")
  52                   (nonascii-translation . cyrillic-iso8859-5)
  53                   (unibyte-display . cyrillic-iso-8bit)
  54                   (features cyril-util)
  55                   (sample-text . "Russian (\e,L@caaZXY\e(B)       \e,L7T`PRabRcYbU\e(B!")
  56                   (documentation . "Support for Cyrillic ISO-8859-5."))
  57  '("Cyrillic"))
  58
  59 ;; KOI-8 staff
  60
  61 (defvar cyrillic-koi8-r-decode-table
  62   [
  63    0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
  64    16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
  65    32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
  66    48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
  67    64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
  68    80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
  69    96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
  70    112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
  71    128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143
  72    144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
  73    160 161 162 ?\e,Lq\e(B  164 165 166 167 168 169 170 171 172 173 174 175
  74    176 177 178 ?\e,L!\e(B  180 181 182 183 184 185 186 187 188 189 190 191
  75    ?\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
  76    ?\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
  77    ?\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
  78    ?\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 ]
  79   "Cyrillic KOI8-R decoding table.")
  80
  81 (let ((table (make-translation-table-from-vector
  82               cyrillic-koi8-r-decode-table)))
  83   (define-translation-table 'cyrillic-koi8-r-nonascii-translation-table table)
  84   (define-translation-table 'cyrillic-koi8-r-encode-table
  85     (char-table-extra-slot table 0)))
  86
  87 (define-ccl-program ccl-decode-koi8
  88   `(3
  89     ((loop
  90       (r0 = 0)
  91       (read r1)
  92       (if (r1 < 128)
  93           (write-repeat r1)
  94         ((translate-character cyrillic-koi8-r-nonascii-translation-table r0 r1)
  95          (write-multibyte-character r0 r1)
  96          (repeat))))))
  97   "CCL program to decode KOI8.")
  98
  99 (define-ccl-program ccl-encode-koi8
 100   `(1
 101     ((loop
 102       (read-multibyte-character r0 r1)
 103       (if (r0 == ,(charset-id 'cyrillic-iso8859-5))
 104           (translate-character cyrillic-koi8-r-encode-table r0 r1))
 105       (if (r0 != ,(charset-id 'eight-bit-graphic))
 106           (if (r0 != ,(charset-id 'eight-bit-control))
 107               (r1 = ??)))
 108       (write-repeat r1))))
 109   "CCL program to encode KOI8.")
 110
 111 (make-coding-system
 112  'cyrillic-koi8 4
 113  ;; We used to use ?K.  It is true that ?K is more strictly correct,
 114  ;; but it is also used for Korean.
 115  ;; So people who use koi8 for languages other than Russian
 116  ;; will have to forgive us.
 117  ?R "KOI8 8-bit encoding for Cyrillic (MIME: KOI8-R)"
 118  '(ccl-decode-koi8 . ccl-encode-koi8)
 119  `((safe-chars . ,(let ((table (make-char-table 'safe-chars))
 120                         (i 0))
 121                     (while (< i 256)
 122                       (aset table (aref cyrillic-koi8-r-decode-table i) t)
 123                       (setq i (1+ i)))
 124                     table))
 125    (mime-charset . koi8-r)
 126    (valid-codes (0 . 127) 163 179 (192 . 255))
 127    (charset-origin-alist (cyrillic-iso8859-5 "KOI8-R"
 128                                              cyrillic-encode-koi8-r-char))))
 129
 130 (define-coding-system-alias 'koi8-r 'cyrillic-koi8)
 131 (define-coding-system-alias 'koi8 'cyrillic-koi8)
 132
 133 (define-ccl-program ccl-encode-koi8-font
 134   `(0
 135     ((translate-character cyrillic-koi8-r-encode-table r0 r1)))
 136   "CCL program to encode Cyrillic chars to KOI font.")
 137
 138 (setq font-ccl-encoder-alist
 139       (cons '("koi8" . ccl-encode-koi8-font) font-ccl-encoder-alist))
 140
 141 (set-language-info-alist
 142  "Cyrillic-KOI8" `((charset cyrillic-iso8859-5)
 143                    (nonascii-translation
 144                     . ,(get 'cyrillic-koi8-r-nonascii-translation-table
 145                             'translation-table))
 146                    (coding-system cyrillic-koi8)
 147                    (coding-priority cyrillic-koi8)
 148                    (input-method . "cyrillic-jcuken")
 149                    (features cyril-util)
 150                    (unibyte-display . cyrillic-koi8)
 151                    (sample-text . "Russian (\e,L@caaZXY\e(B)      \e,L7T`PRabRcYbU\e(B!")
 152                    (documentation . "Support for Cyrillic KOI8-R."))
 153  '("Cyrillic"))
 154
 155 ;;; ALTERNATIVNYJ stuff
 156
 157 (defvar cyrillic-alternativnyj-decode-table
 158   [
 159    0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 160    16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
 161    32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47
 162    48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63
 163    64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79
 164    80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95
 165    96  97  98  99 100 101 102 103 104 105 106 107 108 109 110 111
 166    112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
 167    ?\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
 168    ?\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
 169    ?\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
 170    176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
 171    192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207
 172    208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
 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,L!\e(B  ?\e,Lq\e(B  ?\e,L$\e(B  ?\e,Lt\e(B  ?\e,L'\e(B  ?\e,Lw\e(B  ?\e,L.\e(B  ?\e,L~\e(B  248 249 250 251 ?\e,Lp\e(B  253 254 ?\e,L \e(B]
 175   "Cyrillic ALTERNATIVNYJ decoding table.")
 176
 177 (let ((table (make-translation-table-from-vector
 178               cyrillic-alternativnyj-decode-table)))
 179   (define-translation-table 'cyrillic-alternativnyj-nonascii-translation-table
 180     table)
 181   (define-translation-table 'cyrillic-alternativnyj-encode-table
 182     (char-table-extra-slot table 0)))
 183
 184
 185 (define-ccl-program ccl-decode-alternativnyj
 186   `(3
 187     ((loop
 188       (r0 = 0)
 189       (read r1)
 190       (if (r1 < 128)
 191           (write-repeat r1)
 192         ((translate-character cyrillic-alternativnyj-nonascii-translation-table
 193                               r0 r1)
 194          (write-multibyte-character r0 r1)
 195          (repeat))))))
 196   "CCL program to decode Alternativnyj.")
 197
 198 (define-ccl-program ccl-encode-alternativnyj
 199   `(1
 200     ((loop
 201       (read-multibyte-character r0 r1)
 202       (translate-character cyrillic-alternativnyj-encode-table r0 r1)
 203       (if (r0 != ,(charset-id 'eight-bit-graphic))
 204           (if (r0 != ,(charset-id 'eight-bit-control))
 205               (r1 = ??)))
 206       (write-repeat r1))))
 207   "CCL program to encode Alternativnyj.")
 208
 209 (make-coding-system
 210  'cyrillic-alternativnyj 4 ?A
 211  "ALTERNATIVNYJ 8-bit encoding for Cyrillic"
 212  '(ccl-decode-alternativnyj . ccl-encode-alternativnyj)
 213  `((safe-chars . ,(let ((table (make-char-table 'safe-chars))
 214                         (i 0))
 215                     (while (< i 256)
 216                       (aset table (aref cyrillic-alternativnyj-decode-table i)
 217                             t)
 218                       (setq i (1+ i)))
 219                     table))
 220    (valid-codes (0 . 175) (224 . 241) 255)))
 221
 222
 223 (define-coding-system-alias 'alternativnyj 'cyrillic-alternativnyj)
 224
 225 (define-ccl-program ccl-encode-alternativnyj-font
 226   '(0
 227     ((translate-character cyrillic-alternativnyj-encode-table r0 r1)))
 228   "CCL program to encode Cyrillic chars to Alternativnyj font.")
 229
 230 (setq font-ccl-encoder-alist
 231       (cons '("alternativnyj" . ccl-encode-alternativnyj-font)
 232             font-ccl-encoder-alist))
 233
 234 (set-language-info-alist
 235  "Cyrillic-ALT" `((charset cyrillic-iso8859-5)
 236                   (nonascii-translation
 237                    . ,(get 'cyrillic-alternativnyj-nonascii-translation-table
 238                            'translation-table))
 239                   (coding-system cyrillic-alternativnyj)
 240                   (coding-priority cyrillic-alternativnyj)
 241                   (input-method . "cyrillic-jcuken")
 242                   (features cyril-util)
 243                   (unibyte-display . cyrillic-alternativnyj)
 244                   (sample-text . "Russian (\e,L@caaZXY\e(B)       \e,L7T`PRabRcYbU\e(B!")
 245                   (documentation . "Support for Cyrillic ALTERNATIVNYJ."))
 246  '("Cyrillic"))
 247
 248 (provide 'cyrillic)
 249
 250 ;;; cyrillic.el ends here