lib/iso8859_15.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  * ISO-8859-15
  23  */
  24
  25 static const unsigned short iso8859_15_2uni[32] = {
  26   /* 0xa0 */
  27   0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x20ac, 0x00a5, 0x0160, 0x00a7,
  28   0x0161, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af,
  29   /* 0xb0 */
  30   0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x017d, 0x00b5, 0x00b6, 0x00b7,
  31   0x017e, 0x00b9, 0x00ba, 0x00bb, 0x0152, 0x0153, 0x0178, 0x00bf,
  32 };
  33
  34 static int
  35 iso8859_15_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
  36 {
  37   unsigned char c = *s;
  38   if (c >= 0xa0 && c < 0xc0)
  39     *pwc = (ucs4_t) iso8859_15_2uni[c-0xa0];
  40   else
  41     *pwc = (ucs4_t) c;
  42   return 1;
  43 }
  44
  45 static const unsigned char iso8859_15_page00[32] = {
  46   0xa0, 0xa1, 0xa2, 0xa3, 0x00, 0xa5, 0x00, 0xa7, /* 0xa0-0xa7 */
  47   0x00, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
  48   0xb0, 0xb1, 0xb2, 0xb3, 0x00, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
  49   0x00, 0xb9, 0xba, 0xbb, 0x00, 0x00, 0x00, 0xbf, /* 0xb8-0xbf */
  50 };
  51 static const unsigned char iso8859_15_page01[48] = {
  52   0x00, 0x00, 0xbc, 0xbd, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
  53   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
  54   0xa6, 0xa8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
  55   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
  56   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
  57   0xbe, 0x00, 0x00, 0x00, 0x00, 0xb4, 0xb8, 0x00, /* 0x78-0x7f */
  58 };
  59
  60 static int
  61 iso8859_15_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
  62 {
  63   unsigned char c = 0;
  64   if (wc < 0x00a0) {
  65     *r = wc;
  66     return 1;
  67   }
  68   else if (wc >= 0x00a0 && wc < 0x00c0)
  69     c = iso8859_15_page00[wc-0x00a0];
  70   else if (wc >= 0x00c0 && wc < 0x0100)
  71     c = wc;
  72   else if (wc >= 0x0150 && wc < 0x0180)
  73     c = iso8859_15_page01[wc-0x0150];
  74   else if (wc == 0x20ac)
  75     c = 0xa4;
  76   if (c != 0) {
  77     *r = c;
  78     return 1;
  79   }
  80   return RET_ILSEQ;
  81 }