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