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 * KOI8-T
23 */
24
25static const unsigned short koi8_t_2uni[128] = {
26  /* 0x80 */
27  0x049b, 0x0493, 0x201a, 0x0492, 0x201e, 0x2026, 0x2020, 0x2021,
28  0xfffd, 0x2030, 0x04b3, 0x2039, 0x04b2, 0x04b7, 0x04b6, 0xfffd,
29  /* 0x90 */
30  0x049a, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014,
31  0xfffd, 0x2122, 0xfffd, 0x203a, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
32  /* 0xa0 */
33  0xfffd, 0x04ef, 0x04ee, 0x0451, 0x00a4, 0x04e3, 0x00a6, 0x00a7,
34  0xfffd, 0xfffd, 0xfffd, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0xfffd,
35  /* 0xb0 */
36  0x00b0, 0x00b1, 0x00b2, 0x0401, 0xfffd, 0x04e2, 0x00b6, 0x00b7,
37  0xfffd, 0x2116, 0xfffd, 0x00bb, 0xfffd, 0xfffd, 0xfffd, 0x00a9,
38  /* 0xc0 */
39  0x044e, 0x0430, 0x0431, 0x0446, 0x0434, 0x0435, 0x0444, 0x0433,
40  0x0445, 0x0438, 0x0439, 0x043a, 0x043b, 0x043c, 0x043d, 0x043e,
41  /* 0xd0 */
42  0x043f, 0x044f, 0x0440, 0x0441, 0x0442, 0x0443, 0x0436, 0x0432,
43  0x044c, 0x044b, 0x0437, 0x0448, 0x044d, 0x0449, 0x0447, 0x044a,
44  /* 0xe0 */
45  0x042e, 0x0410, 0x0411, 0x0426, 0x0414, 0x0415, 0x0424, 0x0413,
46  0x0425, 0x0418, 0x0419, 0x041a, 0x041b, 0x041c, 0x041d, 0x041e,
47  /* 0xf0 */
48  0x041f, 0x042f, 0x0420, 0x0421, 0x0422, 0x0423, 0x0416, 0x0412,
49  0x042c, 0x042b, 0x0417, 0x0428, 0x042d, 0x0429, 0x0427, 0x042a,
50};
51
52static int
53koi8_t_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
54{
55  unsigned char c = *s;
56  if (c < 0x80) {
57    *pwc = (ucs4_t) c;
58    return 1;
59  }
60  else {
61    unsigned short wc = koi8_t_2uni[c-0x80];
62    if (wc != 0xfffd) {
63      *pwc = (ucs4_t) wc;
64      return 1;
65    }
66  }
67  return RET_ILSEQ;
68}
69
70static const unsigned char koi8_t_page00[32] = {
71  0x00, 0x00, 0x00, 0x00, 0xa4, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
72  0x00, 0xbf, 0x00, 0xab, 0xac, 0xad, 0xae, 0x00, /* 0xa8-0xaf */
73  0xb0, 0xb1, 0xb2, 0x00, 0x00, 0x00, 0xb6, 0xb7, /* 0xb0-0xb7 */
74  0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
75};
76static const unsigned char koi8_t_page04[240] = {
77  0x00, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
78  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
79  0xe1, 0xe2, 0xf7, 0xe7, 0xe4, 0xe5, 0xf6, 0xfa, /* 0x10-0x17 */
80  0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, /* 0x18-0x1f */
81  0xf2, 0xf3, 0xf4, 0xf5, 0xe6, 0xe8, 0xe3, 0xfe, /* 0x20-0x27 */
82  0xfb, 0xfd, 0xff, 0xf9, 0xf8, 0xfc, 0xe0, 0xf1, /* 0x28-0x2f */
83  0xc1, 0xc2, 0xd7, 0xc7, 0xc4, 0xc5, 0xd6, 0xda, /* 0x30-0x37 */
84  0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, /* 0x38-0x3f */
85  0xd2, 0xd3, 0xd4, 0xd5, 0xc6, 0xc8, 0xc3, 0xde, /* 0x40-0x47 */
86  0xdb, 0xdd, 0xdf, 0xd9, 0xd8, 0xdc, 0xc0, 0xd1, /* 0x48-0x4f */
87  0x00, 0xa3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
88  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
89  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
90  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
91  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
92  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
93  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
94  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
95  0x00, 0x00, 0x83, 0x81, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
96  0x00, 0x00, 0x90, 0x80, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */
97  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
98  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
99  0x00, 0x00, 0x8c, 0x8a, 0x00, 0x00, 0x8e, 0x8d, /* 0xb0-0xb7 */
100  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
101  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
102  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
103  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0-0xd7 */
104  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8-0xdf */
105  0x00, 0x00, 0xb5, 0xa5, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */
106  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa2, 0xa1, /* 0xe8-0xef */
107};
108static const unsigned char koi8_t_page20[48] = {
109  0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00, /* 0x10-0x17 */
110  0x91, 0x92, 0x82, 0x00, 0x93, 0x94, 0x84, 0x00, /* 0x18-0x1f */
111  0x86, 0x87, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x20-0x27 */
112  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */
113  0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */
114  0x00, 0x8b, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
115};
116static const unsigned char koi8_t_page21[24] = {
117  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb9, 0x00, /* 0x10-0x17 */
118  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
119  0x00, 0x00, 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
120};
121
122static int
123koi8_t_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
124{
125  unsigned char c = 0;
126  if (wc < 0x0080) {
127    *r = wc;
128    return 1;
129  }
130  else if (wc >= 0x00a0 && wc < 0x00c0)
131    c = koi8_t_page00[wc-0x00a0];
132  else if (wc >= 0x0400 && wc < 0x04f0)
133    c = koi8_t_page04[wc-0x0400];
134  else if (wc >= 0x2010 && wc < 0x2040)
135    c = koi8_t_page20[wc-0x2010];
136  else if (wc >= 0x2110 && wc < 0x2128)
137    c = koi8_t_page21[wc-0x2110];
138  if (c != 0) {
139    *r = c;
140    return 1;
141  }
142  return RET_ILUNI;
143}
144