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1 office 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 * ARMSCII-8
23 */
24  
25 static const unsigned short armscii_8_2uni[96] = {
26 /* 0xa0 */
27 0x00a0, 0xfffd, 0x0587, 0x0589, 0x0029, 0x0028, 0x00bb, 0x00ab,
28 0x2014, 0x002e, 0x055d, 0x002c, 0x002d, 0x058a, 0x2026, 0x055c,
29 /* 0xb0 */
30 0x055b, 0x055e, 0x0531, 0x0561, 0x0532, 0x0562, 0x0533, 0x0563,
31 0x0534, 0x0564, 0x0535, 0x0565, 0x0536, 0x0566, 0x0537, 0x0567,
32 /* 0xc0 */
33 0x0538, 0x0568, 0x0539, 0x0569, 0x053a, 0x056a, 0x053b, 0x056b,
34 0x053c, 0x056c, 0x053d, 0x056d, 0x053e, 0x056e, 0x053f, 0x056f,
35 /* 0xd0 */
36 0x0540, 0x0570, 0x0541, 0x0571, 0x0542, 0x0572, 0x0543, 0x0573,
37 0x0544, 0x0574, 0x0545, 0x0575, 0x0546, 0x0576, 0x0547, 0x0577,
38 /* 0xe0 */
39 0x0548, 0x0578, 0x0549, 0x0579, 0x054a, 0x057a, 0x054b, 0x057b,
40 0x054c, 0x057c, 0x054d, 0x057d, 0x054e, 0x057e, 0x054f, 0x057f,
41 /* 0xf0 */
42 0x0550, 0x0580, 0x0551, 0x0581, 0x0552, 0x0582, 0x0553, 0x0583,
43 0x0554, 0x0584, 0x0555, 0x0585, 0x0556, 0x0586, 0x055a, 0xfffd,
44 };
45  
46 static int
47 armscii_8_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
48 {
49 unsigned char c = *s;
50 if (c < 0xa0) {
51 *pwc = (ucs4_t) c;
52 return 1;
53 }
54 else {
55 unsigned short wc = armscii_8_2uni[c-0xa0];
56 if (wc != 0xfffd) {
57 *pwc = (ucs4_t) wc;
58 return 1;
59 }
60 }
61 return RET_ILSEQ;
62 }
63  
64 static const unsigned char armscii_8_page00[8] = {
65 0xa5, 0xa4, 0x2a, 0x2b, 0xab, 0xac, 0xa9, 0x2f, /* 0x28-0x2f */
66 };
67 static const unsigned char armscii_8_page00_1[32] = {
68 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
69 0x00, 0x00, 0x00, 0xa7, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
70 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
71 0x00, 0x00, 0x00, 0xa6, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
72 };
73 static const unsigned char armscii_8_page05[96] = {
74 0x00, 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe, /* 0x30-0x37 */
75 0xc0, 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, /* 0x38-0x3f */
76 0xd0, 0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde, /* 0x40-0x47 */
77 0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee, /* 0x48-0x4f */
78 0xf0, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0x00, /* 0x50-0x57 */
79 0x00, 0x00, 0xfe, 0xb0, 0xaf, 0xaa, 0xb1, 0x00, /* 0x58-0x5f */
80 0x00, 0xb3, 0xb5, 0xb7, 0xb9, 0xbb, 0xbd, 0xbf, /* 0x60-0x67 */
81 0xc1, 0xc3, 0xc5, 0xc7, 0xc9, 0xcb, 0xcd, 0xcf, /* 0x68-0x6f */
82 0xd1, 0xd3, 0xd5, 0xd7, 0xd9, 0xdb, 0xdd, 0xdf, /* 0x70-0x77 */
83 0xe1, 0xe3, 0xe5, 0xe7, 0xe9, 0xeb, 0xed, 0xef, /* 0x78-0x7f */
84 0xf1, 0xf3, 0xf5, 0xf7, 0xf9, 0xfb, 0xfd, 0xa2, /* 0x80-0x87 */
85 0x00, 0xa3, 0xad, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
86 };
87 static const unsigned char armscii_8_page20[24] = {
88 0x00, 0x00, 0x00, 0x00, 0xa8, 0x00, 0x00, 0x00, /* 0x10-0x17 */
89 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
90 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xae, 0x00, /* 0x20-0x27 */
91 };
92  
93 static int
94 armscii_8_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
95 {
96 unsigned char c = 0;
97 if (wc < 0x0028) {
98 *r = wc;
99 return 1;
100 }
101 else if (wc >= 0x0028 && wc < 0x0030)
102 c = armscii_8_page00[wc-0x0028];
103 else if (wc >= 0x0030 && wc < 0x00a0)
104 c = wc;
105 else if (wc >= 0x00a0 && wc < 0x00c0)
106 c = armscii_8_page00_1[wc-0x00a0];
107 else if (wc >= 0x0530 && wc < 0x0590)
108 c = armscii_8_page05[wc-0x0530];
109 else if (wc >= 0x2010 && wc < 0x2028)
110 c = armscii_8_page20[wc-0x2010];
111 if (c != 0) {
112 *r = c;
113 return 1;
114 }
115 return RET_ILUNI;
116 }