lib/koi8_t.h

   1 /*
   2  * Copyright (C) 1999-2002, 2016 Free Software Foundation, Inc.
   3  * This file is part of the GNU LIBICONV Library.
   4  *
   5  * The GNU LIBICONV Library is free software; you can redistribute it
   6  * and/or modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either version 2.1
   8  * of the License, or (at your option) any later version.
   9  *
  10  * The GNU LIBICONV Library is distributed in the hope that it will be
  11  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
  17  * If not, see <https://www.gnu.org/licenses/>.
  18  */
  19
  20 /*
  21  * KOI8-T
  22  */
  23
  24 static const unsigned short koi8_t_2uni[128] = {
  25   /* 0x80 */
  26   0x049b, 0x0493, 0x201a, 0x0492, 0x201e, 0x2026, 0x2020, 0x2021,
  27   0xfffd, 0x2030, 0x04b3, 0x2039, 0x04b2, 0x04b7, 0x04b6, 0xfffd,
  28   /* 0x90 */
  29   0x049a, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014,
  30   0xfffd, 0x2122, 0xfffd, 0x203a, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
  31   /* 0xa0 */
  32   0xfffd, 0x04ef, 0x04ee, 0x0451, 0x00a4, 0x04e3, 0x00a6, 0x00a7,
  33   0xfffd, 0xfffd, 0xfffd, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0xfffd,
  34   /* 0xb0 */
  35   0x00b0, 0x00b1, 0x00b2, 0x0401, 0xfffd, 0x04e2, 0x00b6, 0x00b7,
  36   0xfffd, 0x2116, 0xfffd, 0x00bb, 0xfffd, 0xfffd, 0xfffd, 0x00a9,
  37   /* 0xc0 */
  38   0x044e, 0x0430, 0x0431, 0x0446, 0x0434, 0x0435, 0x0444, 0x0433,
  39   0x0445, 0x0438, 0x0439, 0x043a, 0x043b, 0x043c, 0x043d, 0x043e,
  40   /* 0xd0 */
  41   0x043f, 0x044f, 0x0440, 0x0441, 0x0442, 0x0443, 0x0436, 0x0432,
  42   0x044c, 0x044b, 0x0437, 0x0448, 0x044d, 0x0449, 0x0447, 0x044a,
  43   /* 0xe0 */
  44   0x042e, 0x0410, 0x0411, 0x0426, 0x0414, 0x0415, 0x0424, 0x0413,
  45   0x0425, 0x0418, 0x0419, 0x041a, 0x041b, 0x041c, 0x041d, 0x041e,
  46   /* 0xf0 */
  47   0x041f, 0x042f, 0x0420, 0x0421, 0x0422, 0x0423, 0x0416, 0x0412,
  48   0x042c, 0x042b, 0x0417, 0x0428, 0x042d, 0x0429, 0x0427, 0x042a,
  49 };
  50
  51 static int
  52 koi8_t_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)
  53 {
  54   unsigned char c = *s;
  55   if (c < 0x80) {
  56     *pwc = (ucs4_t) c;
  57     return 1;
  58   }
  59   else {
  60     unsigned short wc = koi8_t_2uni[c-0x80];
  61     if (wc != 0xfffd) {
  62       *pwc = (ucs4_t) wc;
  63       return 1;
  64     }
  65   }
  66   return RET_ILSEQ;
  67 }
  68
  69 static const unsigned char koi8_t_page00[32] = {
  70   0x00, 0x00, 0x00, 0x00, 0xa4, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
  71   0x00, 0xbf, 0x00, 0xab, 0xac, 0xad, 0xae, 0x00, /* 0xa8-0xaf */
  72   0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0xb6, 0xb7, /* 0xb0-0xb7 */
  73   0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
  74 };
  75 static const unsigned char koi8_t_page04[240] = {
  76   0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
  77   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
  78   0xe1, 0xe2, 0xf7, 0xe7, 0xe4, 0xe5, 0xf6, 0xfa, /* 0x10-0x17 */
  79   0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, /* 0x18-0x1f */
  80   0xf2, 0xf3, 0xf4, 0xf5, 0xe6, 0xe8, 0xe3, 0xfe, /* 0x20-0x27 */
  81   0xfb, 0xfd, 0xff, 0xf9, 0xf8, 0xfc, 0xe0, 0xf1, /* 0x28-0x2f */
  82   0xc1, 0xc2, 0xd7, 0xc7, 0xc4, 0xc5, 0xd6, 0xda, /* 0x30-0x37 */
  83   0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, /* 0x38-0x3f */
  84   0xd2, 0xd3, 0xd4, 0xd5, 0xc6, 0xc8, 0xc3, 0xde, /* 0x40-0x47 */
  85   0xdb, 0xdd, 0xdf, 0xd9, 0xd8, 0xdc, 0xc0, 0xd1, /* 0x48-0x4f */
  86   0x00, 0xa3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
  87   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
  88   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
  89   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
  90   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
  91   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
  92   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
  93   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
  94   0x00, 0x00, 0x83, 0x81, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
  95   0x00, 0x00, 0x90, 0x80, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
  96   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
  97   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
  98   0x00, 0x00, 0x8c, 0x8a, 0x00, 0x00, 0x8e, 0x8d, /* 0xb0-0xb7 */
  99   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
 100   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
 101   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
 102   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
 103   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
 104   0x00, 0x00, 0xb5, 0xa5, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
 105   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa2, 0xa1, /* 0xe8-0xef */
 106 };
 107 static const unsigned char koi8_t_page20[48] = {
 108   0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00, /* 0x10-0x17 */
 109   0x91, 0x92, 0x82, 0x00, 0x93, 0x94, 0x84, 0x00, /* 0x18-0x1f */
 110   0x86, 0x87, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x20-0x27 */
 111   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
 112   0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
 113   0x00, 0x8b, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
 114 };
 115 static const unsigned char koi8_t_page21[24] = {
 116   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb9, 0x00, /* 0x10-0x17 */
 117   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
 118   0x00, 0x00, 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
 119 };
 120
 121 static int
 122 koi8_t_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)
 123 {
 124   unsigned char c = 0;
 125   if (wc < 0x0080) {
 126     *r = wc;
 127     return 1;
 128   }
 129   else if (wc >= 0x00a0 && wc < 0x00c0)
 130     c = koi8_t_page00[wc-0x00a0];
 131   else if (wc >= 0x0400 && wc < 0x04f0)
 132     c = koi8_t_page04[wc-0x0400];
 133   else if (wc >= 0x2010 && wc < 0x2040)
 134     c = koi8_t_page20[wc-0x2010];
 135   else if (wc >= 0x2110 && wc < 0x2128)
 136     c = koi8_t_page21[wc-0x2110];
 137   if (c != 0) {
 138     *r = c;
 139     return 1;
 140   }
 141   return RET_ILUNI;
 142 }