1/*
2 * Copyright (C) 1999-2001 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., 51 Franklin Street,
18 * Fifth Floor, Boston, MA 02110-1301, USA.
19 */
20
21/*
22 * CP1252
23 */
24
25static const unsigned short cp1252_2uni[32] = {
26  /* 0x80 */
27  0x20ac, 0xfffd, 0x201a, 0x0192, 0x201e, 0x2026, 0x2020, 0x2021,
28  0x02c6, 0x2030, 0x0160, 0x2039, 0x0152, 0xfffd, 0x017d, 0xfffd,
29  /* 0x90 */
30  0xfffd, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014,
31  0x02dc, 0x2122, 0x0161, 0x203a, 0x0153, 0xfffd, 0x017e, 0x0178,
32};
33
34static int
35cp1252_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
36{
37  unsigned char c = *s;
38  if (c < 0x80 || c >= 0xa0) {
39    *pwc = (ucs4_t) c;
40    return 1;
41  }
42  else {
43    unsigned short wc = cp1252_2uni[c-0x80];
44    if (wc != 0xfffd) {
45      *pwc = (ucs4_t) wc;
46      return 1;
47    }
48  }
49  return RET_ILSEQ;
50}
51
52static const unsigned char cp1252_page01[72] = {
53  0x00, 0x00, 0x8c, 0x9c, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
54  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
55  0x8a, 0x9a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
56  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
57  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
58  0x9f, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x9e, 0x00, /* 0x78-0x7f */
59  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
60  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
61  0x00, 0x00, 0x83, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
62};
63static const unsigned char cp1252_page02[32] = {
64  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x00, /* 0xc0-0xc7 */
65  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
66  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
67  0x00, 0x00, 0x00, 0x00, 0x98, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
68};
69static const unsigned char cp1252_page20[48] = {
70  0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00, /* 0x10-0x17 */
71  0x91, 0x92, 0x82, 0x00, 0x93, 0x94, 0x84, 0x00, /* 0x18-0x1f */
72  0x86, 0x87, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x20-0x27 */
73  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
74  0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
75  0x00, 0x8b, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
76};
77
78static int
79cp1252_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
80{
81  unsigned char c = 0;
82  if (wc < 0x0080) {
83    *r = wc;
84    return 1;
85  }
86  else if (wc >= 0x00a0 && wc < 0x0100)
87    c = wc;
88  else if (wc >= 0x0150 && wc < 0x0198)
89    c = cp1252_page01[wc-0x0150];
90  else if (wc >= 0x02c0 && wc < 0x02e0)
91    c = cp1252_page02[wc-0x02c0];
92  else if (wc >= 0x2010 && wc < 0x2040)
93    c = cp1252_page20[wc-0x2010];
94  else if (wc == 0x20ac)
95    c = 0x80;
96  else if (wc == 0x2122)
97    c = 0x99;
98  if (c != 0) {
99    *r = c;
100    return 1;
101  }
102  return RET_ILUNI;
103}
104