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 * VISCII1.1-1 23 */ 24 25 /* Specification: RFC 1456 */ 26 27 static const unsigned short viscii_2uni_1[32] = { 28 /* 0x00 */ 29 0x0000, 0x0001, 0x1eb2, 0x0003, 0x0004, 0x1eb4, 0x1eaa, 0x0007, 30 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f, 31 /* 0x10 */ 32 0x0010, 0x0011, 0x0012, 0x0013, 0x1ef6, 0x0015, 0x0016, 0x0017, 33 0x0018, 0x1ef8, 0x001a, 0x001b, 0x001c, 0x001d, 0x1ef4, 0x001f, 34 }; 35 static const unsigned short viscii_2uni_2[128] = { 36 /* 0x80 */ 37 0x1ea0, 0x1eae, 0x1eb0, 0x1eb6, 0x1ea4, 0x1ea6, 0x1ea8, 0x1eac, 38 0x1ebc, 0x1eb8, 0x1ebe, 0x1ec0, 0x1ec2, 0x1ec4, 0x1ec6, 0x1ed0, 39 /* 0x90 */ 40 0x1ed2, 0x1ed4, 0x1ed6, 0x1ed8, 0x1ee2, 0x1eda, 0x1edc, 0x1ede, 41 0x1eca, 0x1ece, 0x1ecc, 0x1ec8, 0x1ee6, 0x0168, 0x1ee4, 0x1ef2, 42 /* 0xa0 */ 43 0x00d5, 0x1eaf, 0x1eb1, 0x1eb7, 0x1ea5, 0x1ea7, 0x1ea9, 0x1ead, 44 0x1ebd, 0x1eb9, 0x1ebf, 0x1ec1, 0x1ec3, 0x1ec5, 0x1ec7, 0x1ed1, 45 /* 0xb0 */ 46 0x1ed3, 0x1ed5, 0x1ed7, 0x1ee0, 0x01a0, 0x1ed9, 0x1edd, 0x1edf, 47 0x1ecb, 0x1ef0, 0x1ee8, 0x1eea, 0x1eec, 0x01a1, 0x1edb, 0x01af, 48 /* 0xc0 */ 49 0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x1ea2, 0x0102, 0x1eb3, 0x1eb5, 50 0x00c8, 0x00c9, 0x00ca, 0x1eba, 0x00cc, 0x00cd, 0x0128, 0x1ef3, 51 /* 0xd0 */ 52 0x0110, 0x1ee9, 0x00d2, 0x00d3, 0x00d4, 0x1ea1, 0x1ef7, 0x1eeb, 53 0x1eed, 0x00d9, 0x00da, 0x1ef9, 0x1ef5, 0x00dd, 0x1ee1, 0x01b0, 54 /* 0xe0 */ 55 0x00e0, 0x00e1, 0x00e2, 0x00e3, 0x1ea3, 0x0103, 0x1eef, 0x1eab, 56 0x00e8, 0x00e9, 0x00ea, 0x1ebb, 0x00ec, 0x00ed, 0x0129, 0x1ec9, 57 /* 0xf0 */ 58 0x0111, 0x1ef1, 0x00f2, 0x00f3, 0x00f4, 0x00f5, 0x1ecf, 0x1ecd, 59 0x1ee5, 0x00f9, 0x00fa, 0x0169, 0x1ee7, 0x00fd, 0x1ee3, 0x1eee, 60 }; 61 62 static int 63 viscii_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) 64 { 65 unsigned char c = *s; 66 if (c < 0x20) 67 *pwc = (ucs4_t) viscii_2uni_1[c]; 68 else if (c < 0x80) 69 *pwc = (ucs4_t) c; 70 else 71 *pwc = (ucs4_t) viscii_2uni_2[c-0x80]; 72 return 1; 73 } 74 75 static const unsigned char viscii_page00[64+184] = { 76 0xc0, 0xc1, 0xc2, 0xc3, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */ 77 0xc8, 0xc9, 0xca, 0x00, 0xcc, 0xcd, 0x00, 0x00, /* 0xc8-0xcf */ 78 0x00, 0x00, 0xd2, 0xd3, 0xd4, 0xa0, 0x00, 0x00, /* 0xd0-0xd7 */ 79 0x00, 0xd9, 0xda, 0x00, 0x00, 0xdd, 0x00, 0x00, /* 0xd8-0xdf */ 80 0xe0, 0xe1, 0xe2, 0xe3, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */ 81 0xe8, 0xe9, 0xea, 0x00, 0xec, 0xed, 0x00, 0x00, /* 0xe8-0xef */ 82 0x00, 0x00, 0xf2, 0xf3, 0xf4, 0xf5, 0x00, 0x00, /* 0xf0-0xf7 */ 83 0x00, 0xf9, 0xfa, 0x00, 0x00, 0xfd, 0x00, 0x00, /* 0xf8-0xff */ 84 /* 0x0100 */ 85 0x00, 0x00, 0xc5, 0xe5, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */ 86 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */ 87 0xd0, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */ 88 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */ 89 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */ 90 0xce, 0xee, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */ 91 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */ 92 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */ 93 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */ 94 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */ 95 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */ 96 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */ 97 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */ 98 0x9d, 0xfb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */ 99 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */ 100 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */ 101 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */ 102 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */ 103 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */ 104 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */ 105 0xb4, 0xbd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */ 106 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbf, /* 0xa8-0xaf */ 107 0xdf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */ 108 }; 109 static const unsigned char viscii_page1e[96] = { 110 0x80, 0xd5, 0xc4, 0xe4, 0x84, 0xa4, 0x85, 0xa5, /* 0xa0-0xa7 */ 111 0x86, 0xa6, 0x06, 0xe7, 0x87, 0xa7, 0x81, 0xa1, /* 0xa8-0xaf */ 112 0x82, 0xa2, 0x02, 0xc6, 0x05, 0xc7, 0x83, 0xa3, /* 0xb0-0xb7 */ 113 0x89, 0xa9, 0xcb, 0xeb, 0x88, 0xa8, 0x8a, 0xaa, /* 0xb8-0xbf */ 114 0x8b, 0xab, 0x8c, 0xac, 0x8d, 0xad, 0x8e, 0xae, /* 0xc0-0xc7 */ 115 0x9b, 0xef, 0x98, 0xb8, 0x9a, 0xf7, 0x99, 0xf6, /* 0xc8-0xcf */ 116 0x8f, 0xaf, 0x90, 0xb0, 0x91, 0xb1, 0x92, 0xb2, /* 0xd0-0xd7 */ 117 0x93, 0xb5, 0x95, 0xbe, 0x96, 0xb6, 0x97, 0xb7, /* 0xd8-0xdf */ 118 0xb3, 0xde, 0x94, 0xfe, 0x9e, 0xf8, 0x9c, 0xfc, /* 0xe0-0xe7 */ 119 0xba, 0xd1, 0xbb, 0xd7, 0xbc, 0xd8, 0xff, 0xe6, /* 0xe8-0xef */ 120 0xb9, 0xf1, 0x9f, 0xcf, 0x1e, 0xdc, 0x14, 0xd6, /* 0xf0-0xf7 */ 121 0x19, 0xdb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */ 122 }; 123 124 static int 125 viscii_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) 126 { 127 unsigned char c = 0; 128 if (wc < 0x0080 && (wc >= 0x0020 || (0x42100064 & (1 << wc)) == 0)) { 129 *r = wc; 130 return 1; 131 } 132 else if (wc >= 0x00c0 && wc < 0x01b8) 133 c = viscii_page00[wc-0x00c0]; 134 else if (wc >= 0x1ea0 && wc < 0x1f00) 135 c = viscii_page1e[wc-0x1ea0]; 136 if (c != 0) { 137 *r = c; 138 return 1; 139 } 140 return RET_ILUNI; 141 } 142