lib/cp853.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  * CP853
  22  */
  23
  24 static const unsigned short cp853_2uni[128] = {
  25   /* 0x80 */
  26   0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x0109, 0x00e7,
  27   0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x0108,
  28   /* 0x90 */
  29   0x00c9, 0x010b, 0x010a, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
  30   0x0130, 0x00d6, 0x00dc, 0x011d, 0x00a3, 0x011c, 0x00d7, 0x0135,
  31   /* 0xa0 */
  32   0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x011e, 0x011f,
  33   0x0124, 0x0125, 0xfffd, 0x00bd, 0x0134, 0x015f, 0x00ab, 0x00bb,
  34   /* 0xb0 */
  35   0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00c1, 0x00c2, 0x00c0,
  36   0x015e, 0x2563, 0x2551, 0x2557, 0x255d, 0x017b, 0x017c, 0x2510,
  37   /* 0xc0 */
  38   0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x015c, 0x015d,
  39   0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x00a4,
  40   /* 0xd0 */
  41   0xfffd, 0xfffd, 0x00ca, 0x00cb, 0x00c8, 0x0131, 0x00cd, 0x00ce,
  42   0x00cf, 0x2518, 0x250c, 0x2588, 0x2584, 0xfffd, 0x00cc, 0x2580,
  43   /* 0xe0 */
  44   0x00d3, 0x00df, 0x00d4, 0x00d2, 0x0120, 0x0121, 0x00b5, 0x0126,
  45   0x0127, 0x00da, 0x00db, 0x00d9, 0x016c, 0x016d, 0xfffd, 0x00b4,
  46   /* 0xf0 */
  47   0x00ad, 0xfffd, 0x2113, 0x0149, 0x02d8, 0x00a7, 0x00f7, 0x00b8,
  48   0x00b0, 0x00a8, 0x02d9, 0xfffd, 0x00b3, 0x00b2, 0x25a0, 0x00a0,
  49 };
  50
  51 static int
  52 cp853_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 = cp853_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 cp853_page00[96] = {
  70   0xff, 0x00, 0x00, 0x9c, 0xcf, 0x00, 0x00, 0xf5, /* 0xa0-0xa7 */
  71   0xf9, 0x00, 0x00, 0xae, 0x00, 0xf0, 0x00, 0x00, /* 0xa8-0xaf */
  72   0xf8, 0x00, 0xfd, 0xfc, 0xef, 0xe6, 0x00, 0x00, /* 0xb0-0xb7 */
  73   0xf7, 0x00, 0x00, 0xaf, 0x00, 0xab, 0x00, 0x00, /* 0xb8-0xbf */
  74   0xb7, 0xb5, 0xb6, 0x00, 0x8e, 0x00, 0x00, 0x80, /* 0xc0-0xc7 */
  75   0xd4, 0x90, 0xd2, 0xd3, 0xde, 0xd6, 0xd7, 0xd8, /* 0xc8-0xcf */
  76   0x00, 0xa5, 0xe3, 0xe0, 0xe2, 0x00, 0x99, 0x9e, /* 0xd0-0xd7 */
  77   0x00, 0xeb, 0xe9, 0xea, 0x9a, 0x00, 0x00, 0xe1, /* 0xd8-0xdf */
  78   0x85, 0xa0, 0x83, 0x00, 0x84, 0x00, 0x00, 0x87, /* 0xe0-0xe7 */
  79   0x8a, 0x82, 0x88, 0x89, 0x8d, 0xa1, 0x8c, 0x8b, /* 0xe8-0xef */
  80   0x00, 0xa4, 0x95, 0xa2, 0x93, 0x00, 0x94, 0xf6, /* 0xf0-0xf7 */
  81   0x00, 0x97, 0xa3, 0x96, 0x81, 0x00, 0x00, 0x00, /* 0xf8-0xff */
  82 };
  83 static const unsigned char cp853_page01[120] = {
  84   0x8f, 0x86, 0x92, 0x91, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
  85   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
  86   0x00, 0x00, 0x00, 0x00, 0x9d, 0x9b, 0xa6, 0xa7, /* 0x18-0x1f */
  87   0xe4, 0xe5, 0x00, 0x00, 0xa8, 0xa9, 0xe7, 0xe8, /* 0x20-0x27 */
  88   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
  89   0x98, 0xd5, 0x00, 0x00, 0xac, 0x9f, 0x00, 0x00, /* 0x30-0x37 */
  90   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
  91   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
  92   0x00, 0xf3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
  93   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
  94   0x00, 0x00, 0x00, 0x00, 0xc6, 0xc7, 0xb8, 0xad, /* 0x58-0x5f */
  95   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
  96   0x00, 0x00, 0x00, 0x00, 0xec, 0xed, 0x00, 0x00, /* 0x68-0x6f */
  97   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
  98   0x00, 0x00, 0x00, 0xbd, 0xbe, 0x00, 0x00, 0x00, /* 0x78-0x7f */
  99 };
 100 static const unsigned char cp853_page02[8] = {
 101   0xf4, 0xfa, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
 102 };
 103 static const unsigned char cp853_page25[168] = {
 104   0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
 105   0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
 106   0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
 107   0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
 108   0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
 109   0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
 110   0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
 111   0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
 112   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
 113   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
 114   0xcd, 0xba, 0x00, 0x00, 0xc9, 0x00, 0x00, 0xbb, /* 0x50-0x57 */
 115   0x00, 0x00, 0xc8, 0x00, 0x00, 0xbc, 0x00, 0x00, /* 0x58-0x5f */
 116   0xcc, 0x00, 0x00, 0xb9, 0x00, 0x00, 0xcb, 0x00, /* 0x60-0x67 */
 117   0x00, 0xca, 0x00, 0x00, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
 118   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
 119   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
 120   0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
 121   0xdb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
 122   0x00, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
 123   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
 124   0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
 125 };
 126
 127 static int
 128 cp853_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)
 129 {
 130   unsigned char c = 0;
 131   if (wc < 0x0080) {
 132     *r = wc;
 133     return 1;
 134   }
 135   else if (wc >= 0x00a0 && wc < 0x0100)
 136     c = cp853_page00[wc-0x00a0];
 137   else if (wc >= 0x0108 && wc < 0x0180)
 138     c = cp853_page01[wc-0x0108];
 139   else if (wc >= 0x02d8 && wc < 0x02e0)
 140     c = cp853_page02[wc-0x02d8];
 141   else if (wc == 0x2113)
 142     c = 0xf2;
 143   else if (wc >= 0x2500 && wc < 0x25a8)
 144     c = cp853_page25[wc-0x2500];
 145   if (c != 0) {
 146     *r = c;
 147     return 1;
 148   }
 149   return RET_ILUNI;
 150 }