1/********************************************************************** 2 iso8859_4.c - Oniguruma (regular expression library) 3**********************************************************************/ 4/*- 5 * Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include "regenc.h" 31 32#define ENC_ISO_8859_4_TO_LOWER_CASE(c) EncISO_8859_4_ToLowerCaseTable[c] 33#define ENC_IS_ISO_8859_4_CTYPE(code,ctype) \ 34 ((EncISO_8859_4_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0) 35 36static const UChar EncISO_8859_4_ToLowerCaseTable[256] = { 37 '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007', 38 '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017', 39 '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027', 40 '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037', 41 '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047', 42 '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057', 43 '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067', 44 '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077', 45 '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147', 46 '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157', 47 '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167', 48 '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137', 49 '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147', 50 '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157', 51 '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167', 52 '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177', 53 '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207', 54 '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217', 55 '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227', 56 '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237', 57 '\240', '\261', '\242', '\263', '\244', '\265', '\266', '\247', 58 '\250', '\271', '\272', '\273', '\274', '\255', '\276', '\257', 59 '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267', 60 '\270', '\271', '\272', '\273', '\274', '\277', '\276', '\277', 61 '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347', 62 '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357', 63 '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\327', 64 '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\337', 65 '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347', 66 '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357', 67 '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367', 68 '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377' 69}; 70 71static const unsigned short EncISO_8859_4_CtypeTable[256] = { 72 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 73 0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008, 74 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 75 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 76 0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 77 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 78 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 79 0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 80 0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2, 81 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 82 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 83 0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0, 84 0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2, 85 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 86 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 87 0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008, 88 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 89 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 90 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 91 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 92 0x0284, 0x34a2, 0x30e2, 0x34a2, 0x00a0, 0x34a2, 0x34a2, 0x00a0, 93 0x00a0, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x01a0, 0x34a2, 0x00a0, 94 0x00a0, 0x30e2, 0x00a0, 0x30e2, 0x00a0, 0x30e2, 0x30e2, 0x00a0, 95 0x00a0, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x34a2, 0x30e2, 0x30e2, 96 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 97 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 98 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x00a0, 99 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2, 100 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 101 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 102 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0, 103 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0 104}; 105 106static int 107mbc_case_fold(OnigCaseFoldType flag, 108 const UChar** pp, const UChar* end ARG_UNUSED, UChar* lower, 109 OnigEncoding enc ARG_UNUSED) 110{ 111 const UChar* p = *pp; 112 113 if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) { 114 *lower++ = 's'; 115 *lower = 's'; 116 (*pp)++; 117 return 2; 118 } 119 120 *lower = ENC_ISO_8859_4_TO_LOWER_CASE(*p); 121 (*pp)++; 122 return 1; /* return byte length of converted char to lower */ 123} 124 125#if 0 126static int 127is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp, const UChar* end) 128{ 129 int v; 130 const UChar* p = *pp; 131 132 if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) { 133 (*pp)++; 134 return TRUE; 135 } 136 137 (*pp)++; 138 v = (EncISO_8859_4_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER)); 139 if ((v | BIT_CTYPE_LOWER) != 0) { 140 if (*p == 0xa2) 141 return FALSE; 142 else 143 return TRUE; 144 } 145 146 return (v != 0 ? TRUE : FALSE); 147} 148#endif 149 150static int 151is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED) 152{ 153 if (code < 256) 154 return ENC_IS_ISO_8859_4_CTYPE(code, ctype); 155 else 156 return FALSE; 157} 158 159static const OnigPairCaseFoldCodes CaseFoldMap[] = { 160 { 0xa1, 0xb1 }, 161 { 0xa3, 0xb3 }, 162 { 0xa5, 0xb5 }, 163 { 0xa6, 0xb6 }, 164 { 0xa9, 0xb9 }, 165 { 0xaa, 0xba }, 166 { 0xab, 0xbb }, 167 { 0xac, 0xbc }, 168 { 0xae, 0xbe }, 169 170 { 0xc0, 0xe0 }, 171 { 0xc1, 0xe1 }, 172 { 0xc2, 0xe2 }, 173 { 0xc3, 0xe3 }, 174 { 0xc4, 0xe4 }, 175 { 0xc5, 0xe5 }, 176 { 0xc6, 0xe6 }, 177 { 0xc7, 0xe7 }, 178 { 0xc8, 0xe8 }, 179 { 0xc9, 0xe9 }, 180 { 0xca, 0xea }, 181 { 0xcb, 0xeb }, 182 { 0xcc, 0xec }, 183 { 0xcd, 0xed }, 184 { 0xce, 0xee }, 185 { 0xcf, 0xef }, 186 187 { 0xd0, 0xf0 }, 188 { 0xd1, 0xf1 }, 189 { 0xd2, 0xf2 }, 190 { 0xd3, 0xf3 }, 191 { 0xd4, 0xf4 }, 192 { 0xd5, 0xf5 }, 193 { 0xd6, 0xf6 }, 194 { 0xd8, 0xf8 }, 195 { 0xd9, 0xf9 }, 196 { 0xda, 0xfa }, 197 { 0xdb, 0xfb }, 198 { 0xdc, 0xfc }, 199 { 0xdd, 0xfd }, 200 { 0xde, 0xfe } 201}; 202 203static int 204apply_all_case_fold(OnigCaseFoldType flag, 205 OnigApplyAllCaseFoldFunc f, void* arg, 206 OnigEncoding enc ARG_UNUSED) 207{ 208 return onigenc_apply_all_case_fold_with_map( 209 sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1, 210 flag, f, arg); 211} 212 213static int 214get_case_fold_codes_by_str(OnigCaseFoldType flag, 215 const OnigUChar* p, const OnigUChar* end, 216 OnigCaseFoldCodeItem items[], 217 OnigEncoding enc ARG_UNUSED) 218{ 219 return onigenc_get_case_fold_codes_by_str_with_map( 220 sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1, 221 flag, p, end, items); 222} 223 224OnigEncodingDefine(iso_8859_4, ISO_8859_4) = { 225 onigenc_single_byte_mbc_enc_len, 226 "ISO-8859-4", /* name */ 227 1, /* max enc length */ 228 1, /* min enc length */ 229 onigenc_is_mbc_newline_0x0a, 230 onigenc_single_byte_mbc_to_code, 231 onigenc_single_byte_code_to_mbclen, 232 onigenc_single_byte_code_to_mbc, 233 mbc_case_fold, 234 apply_all_case_fold, 235 get_case_fold_codes_by_str, 236 onigenc_minimum_property_name_to_ctype, 237 is_code_ctype, 238 onigenc_not_support_get_ctype_code_range, 239 onigenc_single_byte_left_adjust_char_head, 240 onigenc_always_true_is_allowed_reverse_match, 241 0, 242 ONIGENC_FLAG_NONE, 243}; 244ENC_ALIAS("ISO8859-4", "ISO-8859-4") 245