xref: /haiku/src/libs/iconv/cp1162.h (revision 17889a8c70dbb3d59c1412f6431968753c767bab)
1 /*
2  * Copyright (C) 1999-2002 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  * CP1162
23  */
24 
25 static int
26 cp1162_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
27 {
28   unsigned char c = *s;
29   if (c < 0x80) {
30     *pwc = (ucs4_t) c;
31     return 1;
32   }
33   else {
34     unsigned short wc = cp874_2uni[c-0x80];
35     if (wc != 0xfffd) {
36       *pwc = (ucs4_t) wc;
37       return 1;
38     }
39     if (c < 0xa0) {
40       *pwc = (ucs4_t) c;
41       return 1;
42     }
43   }
44   return RET_ILSEQ;
45 }
46 
47 static int
48 cp1162_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
49 {
50   unsigned char c = 0;
51   if (wc < 0x0080) {
52     *r = wc;
53     return 1;
54   }
55   else if (wc >= 0x0080 && wc < 0x00a0 && cp874_2uni[wc-0x0080] == 0xfffd)
56     c = wc;
57   else if (wc == 0x00a0)
58     c = 0xa0;
59   else if (wc >= 0x0e00 && wc < 0x0e60)
60     c = cp874_page0e[wc-0x0e00];
61   else if (wc >= 0x2010 && wc < 0x2028)
62     c = cp874_page20[wc-0x2010];
63   else if (wc == 0x20ac)
64     c = 0x80;
65   if (c != 0) {
66     *r = c;
67     return 1;
68   }
69   return RET_ILUNI;
70 }
71