lib/cp856.h

   1 /*
   2  * Copyright (C) 1999-2001, 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  * CP856
  22  */
  23
  24 static const unsigned short cp856_2uni[128] = {
  25   /* 0x80 */
  26   0x05d0, 0x05d1, 0x05d2, 0x05d3, 0x05d4, 0x05d5, 0x05d6, 0x05d7,
  27   0x05d8, 0x05d9, 0x05da, 0x05db, 0x05dc, 0x05dd, 0x05de, 0x05df,
  28   /* 0x90 */
  29   0x05e0, 0x05e1, 0x05e2, 0x05e3, 0x05e4, 0x05e5, 0x05e6, 0x05e7,
  30   0x05e8, 0x05e9, 0x05ea, 0xfffd, 0x00a3, 0xfffd, 0x00d7, 0xfffd,
  31   /* 0xa0 */
  32   0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
  33   0xfffd, 0x00ae, 0x00ac, 0x00bd, 0x00bc, 0xfffd, 0x00ab, 0x00bb,
  34   /* 0xb0 */
  35   0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0xfffd, 0xfffd, 0xfffd,
  36   0x00a9, 0x2563, 0x2551, 0x2557, 0x255d, 0x00a2, 0x00a5, 0x2510,
  37   /* 0xc0 */
  38   0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0xfffd, 0xfffd,
  39   0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x00a4,
  40   /* 0xd0 */
  41   0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
  42   0xfffd, 0x2518, 0x250c, 0x2588, 0x2584, 0x00a6, 0xfffd, 0x2580,
  43   /* 0xe0 */
  44   0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0x00b5, 0xfffd,
  45   0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0x00af, 0x00b4,
  46   /* 0xf0 */
  47   0x00ad, 0x00b1, 0x2017, 0x00be, 0x00b6, 0x00a7, 0x00f7, 0x00b8,
  48   0x00b0, 0x00a8, 0x00b7, 0x00b9, 0x00b3, 0x00b2, 0x25a0, 0x00a0,
  49 };
  50
  51 static int
  52 cp856_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 = cp856_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 cp856_page00[88] = {
  70   0xff, 0x00, 0xbd, 0x9c, 0xcf, 0xbe, 0xdd, 0xf5, /* 0xa0-0xa7 */
  71   0xf9, 0xb8, 0x00, 0xae, 0xaa, 0xf0, 0xa9, 0xee, /* 0xa8-0xaf */
  72   0xf8, 0xf1, 0xfd, 0xfc, 0xef, 0xe6, 0xf4, 0xfa, /* 0xb0-0xb7 */
  73   0xf7, 0xfb, 0x00, 0xaf, 0xac, 0xab, 0xf3, 0x00, /* 0xb8-0xbf */
  74   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
  75   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
  76   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9e, /* 0xd0-0xd7 */
  77   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
  78   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
  79   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
  80   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf6, /* 0xf0-0xf7 */
  81 };
  82 static const unsigned char cp856_page05[32] = {
  83   0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0xd0-0xd7 */
  84   0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0xd8-0xdf */
  85   0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0xe0-0xe7 */
  86   0x98, 0x99, 0x9a, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
  87 };
  88 static const unsigned char cp856_page25[168] = {
  89   0xc4, 0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
  90   0x00, 0x00, 0x00, 0x00, 0xda, 0x00, 0x00, 0x00, /* 0x08-0x0f */
  91   0xbf, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 0x10-0x17 */
  92   0xd9, 0x00, 0x00, 0x00, 0xc3, 0x00, 0x00, 0x00, /* 0x18-0x1f */
  93   0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, /* 0x20-0x27 */
  94   0x00, 0x00, 0x00, 0x00, 0xc2, 0x00, 0x00, 0x00, /* 0x28-0x2f */
  95   0x00, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00, /* 0x30-0x37 */
  96   0x00, 0x00, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, /* 0x38-0x3f */
  97   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
  98   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */
  99   0xcd, 0xba, 0x00, 0x00, 0xc9, 0x00, 0x00, 0xbb, /* 0x50-0x57 */
 100   0x00, 0x00, 0xc8, 0x00, 0x00, 0xbc, 0x00, 0x00, /* 0x58-0x5f */
 101   0xcc, 0x00, 0x00, 0xb9, 0x00, 0x00, 0xcb, 0x00, /* 0x60-0x67 */
 102   0x00, 0xca, 0x00, 0x00, 0xce, 0x00, 0x00, 0x00, /* 0x68-0x6f */
 103   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
 104   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
 105   0xdf, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0x00, /* 0x80-0x87 */
 106   0xdb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
 107   0x00, 0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
 108   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
 109   0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
 110 };
 111
 112 static int
 113 cp856_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)
 114 {
 115   unsigned char c = 0;
 116   if (wc < 0x0080) {
 117     *r = wc;
 118     return 1;
 119   }
 120   else if (wc >= 0x00a0 && wc < 0x00f8)
 121     c = cp856_page00[wc-0x00a0];
 122   else if (wc >= 0x05d0 && wc < 0x05f0)
 123     c = cp856_page05[wc-0x05d0];
 124   else if (wc == 0x2017)
 125     c = 0xf2;
 126   else if (wc >= 0x2500 && wc < 0x25a8)
 127     c = cp856_page25[wc-0x2500];
 128   if (c != 0) {
 129     *r = c;
 130     return 1;
 131   }
 132   return RET_ILUNI;
 133 }