lib/iso8859_15.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  * ISO-8859-15
  22  */
  23
  24 static const unsigned short iso8859_15_2uni[32] = {
  25   /* 0xa0 */
  26   0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x20ac, 0x00a5, 0x0160, 0x00a7,
  27   0x0161, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af,
  28   /* 0xb0 */
  29   0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x017d, 0x00b5, 0x00b6, 0x00b7,
  30   0x017e, 0x00b9, 0x00ba, 0x00bb, 0x0152, 0x0153, 0x0178, 0x00bf,
  31 };
  32
  33 static int
  34 iso8859_15_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)
  35 {
  36   unsigned char c = *s;
  37   if (c >= 0xa0 && c < 0xc0)
  38     *pwc = (ucs4_t) iso8859_15_2uni[c-0xa0];
  39   else
  40     *pwc = (ucs4_t) c;
  41   return 1;
  42 }
  43
  44 static const unsigned char iso8859_15_page00[32] = {
  45   0xa0, 0xa1, 0xa2, 0xa3, 0x00, 0xa5, 0x00, 0xa7, /* 0xa0-0xa7 */
  46   0x00, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
  47   0xb0, 0xb1, 0xb2, 0xb3, 0x00, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
  48   0x00, 0xb9, 0xba, 0xbb, 0x00, 0x00, 0x00, 0xbf, /* 0xb8-0xbf */
  49 };
  50 static const unsigned char iso8859_15_page01[48] = {
  51   0x00, 0x00, 0xbc, 0xbd, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
  52   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
  53   0xa6, 0xa8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
  54   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
  55   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
  56   0xbe, 0x00, 0x00, 0x00, 0x00, 0xb4, 0xb8, 0x00, /* 0x78-0x7f */
  57 };
  58
  59 static int
  60 iso8859_15_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)
  61 {
  62   unsigned char c = 0;
  63   if (wc < 0x00a0) {
  64     *r = wc;
  65     return 1;
  66   }
  67   else if (wc >= 0x00a0 && wc < 0x00c0)
  68     c = iso8859_15_page00[wc-0x00a0];
  69   else if (wc >= 0x00c0 && wc < 0x0100)
  70     c = wc;
  71   else if (wc >= 0x0150 && wc < 0x0180)
  72     c = iso8859_15_page01[wc-0x0150];
  73   else if (wc == 0x20ac)
  74     c = 0xa4;
  75   if (c != 0) {
  76     *r = c;
  77     return 1;
  78   }
  79   return RET_ILUNI;
  80 }