lib/cp1133.h

   1 /*
   2  * Copyright (C) 1999-2000 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 Library General Public
   7  * License as published by the Free Software Foundation; either version 2
   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  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public
  16  * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
  17  * If not, write to the Free Software Foundation, Inc., 59 Temple Place -
  18  * Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22  * IBM-CP1133
  23  */
  24
  25 static const unsigned short cp1133_2uni_1[64] = {
  26   /* 0xa0 */
  27   0x00a0, 0x0e81, 0x0e82, 0x0e84, 0x0e87, 0x0e88, 0x0eaa, 0x0e8a,
  28   0x0e8d, 0x0e94, 0x0e95, 0x0e96, 0x0e97, 0x0e99, 0x0e9a, 0x0e9b,
  29   /* 0xb0 */
  30   0x0e9c, 0x0e9d, 0x0e9e, 0x0e9f, 0x0ea1, 0x0ea2, 0x0ea3, 0x0ea5,
  31   0x0ea7, 0x0eab, 0x0ead, 0x0eae, 0xfffd, 0xfffd, 0xfffd, 0x0eaf,
  32   /* 0xc0 */
  33   0x0eb0, 0x0eb2, 0x0eb3, 0x0eb4, 0x0eb5, 0x0eb6, 0x0eb7, 0x0eb8,
  34   0x0eb9, 0x0ebc, 0x0eb1, 0x0ebb, 0x0ebd, 0xfffd, 0xfffd, 0xfffd,
  35   /* 0xd0 */
  36   0x0ec0, 0x0ec1, 0x0ec2, 0x0ec3, 0x0ec4, 0x0ec8, 0x0ec9, 0x0eca,
  37   0x0ecb, 0x0ecc, 0x0ecd, 0x0ec6, 0xfffd, 0x0edc, 0x0edd, 0x20ad,
  38 };
  39 static const unsigned short cp1133_2uni_2[16] = {
  40   /* 0xf0 */
  41   0x0ed0, 0x0ed1, 0x0ed2, 0x0ed3, 0x0ed4, 0x0ed5, 0x0ed6, 0x0ed7,
  42   0x0ed8, 0x0ed9, 0xfffd, 0xfffd, 0x00a2, 0x00ac, 0x00a6, 0xfffd,
  43 };
  44
  45 static int
  46 cp1133_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
  47 {
  48   unsigned char c = *s;
  49   if (c < 0xa0) {
  50     *pwc = (ucs4_t) c;
  51     return 1;
  52   }
  53   else if (c < 0xe0) {
  54     unsigned short wc = cp1133_2uni_1[c-0xa0];
  55     if (wc != 0xfffd) {
  56       *pwc = (ucs4_t) wc;
  57       return 1;
  58     }
  59   }
  60   else if (c < 0xf0) {
  61   }
  62   else {
  63     unsigned short wc = cp1133_2uni_2[c-0xf0];
  64     if (wc != 0xfffd) {
  65       *pwc = (ucs4_t) wc;
  66       return 1;
  67     }
  68   }
  69   return RET_ILSEQ;
  70 }
  71
  72 static const unsigned char cp1133_page00[16] = {
  73   0xa0, 0x00, 0xfc, 0x00, 0x00, 0x00, 0xfe, 0x00, /* 0xa0-0xa7 */
  74   0x00, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
  75 };
  76 static const unsigned char cp1133_page0e[96] = {
  77   0x00, 0xa1, 0xa2, 0x00, 0xa3, 0x00, 0x00, 0xa4, /* 0x80-0x87 */
  78   0xa5, 0x00, 0xa7, 0x00, 0x00, 0xa8, 0x00, 0x00, /* 0x88-0x8f */
  79   0x00, 0x00, 0x00, 0x00, 0xa9, 0xaa, 0xab, 0xac, /* 0x90-0x97 */
  80   0x00, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, /* 0x98-0x9f */
  81   0x00, 0xb4, 0xb5, 0xb6, 0x00, 0xb7, 0x00, 0xb8, /* 0xa0-0xa7 */
  82   0x00, 0x00, 0xa6, 0xb9, 0x00, 0xba, 0xbb, 0xbf, /* 0xa8-0xaf */
  83   0xc0, 0xca, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, /* 0xb0-0xb7 */
  84   0xc7, 0xc8, 0x00, 0xcb, 0xc9, 0xcc, 0x00, 0x00, /* 0xb8-0xbf */
  85   0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0x00, 0xdb, 0x00, /* 0xc0-0xc7 */
  86   0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0x00, 0x00, /* 0xc8-0xcf */
  87   0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xd0-0xd7 */
  88   0xf8, 0xf9, 0x00, 0x00, 0xdd, 0xde, 0x00, 0x00, /* 0xd8-0xdf */
  89 };
  90
  91 static int
  92 cp1133_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
  93 {
  94   unsigned char c = 0;
  95   if (wc < 0x00a0) {
  96     *r = wc;
  97     return 1;
  98   }
  99   else if (wc >= 0x00a0 && wc < 0x00b0)
 100     c = cp1133_page00[wc-0x00a0];
 101   else if (wc >= 0x0e80 && wc < 0x0ee0)
 102     c = cp1133_page0e[wc-0x0e80];
 103   else if (wc == 0x20ad)
 104     c = 0xdf;
 105   if (c != 0) {
 106     *r = c;
 107     return 1;
 108   }
 109   return RET_ILSEQ;
 110 }