1/********************************************************************** 2 koi8_r.c - Oniguruma (regular expression library) 3**********************************************************************/ 4/*- 5 * Copyright (c) 2002-2008 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_KOI8_R_TO_LOWER_CASE(c) EncKOI8_R_ToLowerCaseTable[c] 33#define ENC_IS_KOI8_R_CTYPE(code,ctype) \ 34 ((EncKOI8_R_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0) 35 36static const UChar EncKOI8_R_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', '\241', '\242', '\243', '\244', '\245', '\246', '\247', 58 '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257', 59 '\260', '\261', '\262', '\243', '\264', '\265', '\266', '\267', 60 '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277', 61 '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307', 62 '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317', 63 '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327', 64 '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337', 65 '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307', 66 '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317', 67 '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327', 68 '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337' 69}; 70 71static const unsigned short EncKOI8_R_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 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 89 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 90 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 91 0x00a0, 0x00a0, 0x0284, 0x00a0, 0x00a0, 0x10a0, 0x01a0, 0x00a0, 92 0x00a0, 0x00a0, 0x00a0, 0x30e2, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 93 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 94 0x00a0, 0x00a0, 0x00a0, 0x34a2, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 95 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 96 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 97 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 98 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 99 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 100 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 101 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 102 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 103 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2 104}; 105 106static int 107koi8_r_mbc_case_fold(OnigCaseFoldType flag ARG_UNUSED, 108 const UChar** pp, const UChar* end ARG_UNUSED, 109 UChar* lower, OnigEncoding enc ARG_UNUSED) 110{ 111 const UChar* p = *pp; 112 113 *lower = ENC_KOI8_R_TO_LOWER_CASE(*p); 114 (*pp)++; 115 return 1; 116} 117 118#if 0 119static int 120koi8_r_is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp, 121 const UChar* end, OnigEncoding enc ARG_UNUSED) 122{ 123 int v; 124 const UChar* p = *pp; 125 126 (*pp)++; 127 v = (EncKOI8_R_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER)); 128 return (v != 0 ? TRUE : FALSE); 129} 130#endif 131 132static int 133koi8_r_is_code_ctype(OnigCodePoint code, unsigned int ctype, 134 OnigEncoding enc ARG_UNUSED) 135{ 136 if (code < 256) 137 return ENC_IS_KOI8_R_CTYPE(code, ctype); 138 else 139 return FALSE; 140} 141 142static const OnigPairCaseFoldCodes CaseFoldMap[] = { 143 { 0xa3, 0xb3 }, 144 145 { 0xc0, 0xe0 }, 146 { 0xc1, 0xe1 }, 147 { 0xc2, 0xe2 }, 148 { 0xc3, 0xe3 }, 149 { 0xc4, 0xe4 }, 150 { 0xc5, 0xe5 }, 151 { 0xc6, 0xe6 }, 152 { 0xc7, 0xe7 }, 153 { 0xc8, 0xe8 }, 154 { 0xc9, 0xe9 }, 155 { 0xca, 0xea }, 156 { 0xcb, 0xeb }, 157 { 0xcc, 0xec }, 158 { 0xcd, 0xed }, 159 { 0xce, 0xee }, 160 { 0xcf, 0xef }, 161 162 { 0xd0, 0xf0 }, 163 { 0xd1, 0xf1 }, 164 { 0xd2, 0xf2 }, 165 { 0xd3, 0xf3 }, 166 { 0xd4, 0xf4 }, 167 { 0xd5, 0xf5 }, 168 { 0xd6, 0xf6 }, 169 { 0xd7, 0xf7 }, 170 { 0xd8, 0xf8 }, 171 { 0xd9, 0xf9 }, 172 { 0xda, 0xfa }, 173 { 0xdb, 0xfb }, 174 { 0xdc, 0xfc }, 175 { 0xdd, 0xfd }, 176 { 0xde, 0xfe }, 177 { 0xdf, 0xff } 178}; 179 180static int 181koi8_r_apply_all_case_fold(OnigCaseFoldType flag, 182 OnigApplyAllCaseFoldFunc f, 183 void* arg, OnigEncoding enc ARG_UNUSED) 184{ 185 return onigenc_apply_all_case_fold_with_map( 186 sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0, 187 flag, f, arg); 188} 189 190static int 191koi8_r_get_case_fold_codes_by_str(OnigCaseFoldType flag, 192 const OnigUChar* p, const OnigUChar* end, 193 OnigCaseFoldCodeItem items[], OnigEncoding enc ARG_UNUSED) 194{ 195 return onigenc_get_case_fold_codes_by_str_with_map( 196 sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0, 197 flag, p, end, items); 198} 199 200OnigEncodingDefine(koi8_r, KOI8_R) = { 201 onigenc_single_byte_mbc_enc_len, 202 "KOI8-R", /* name */ 203 1, /* max enc length */ 204 1, /* min enc length */ 205 onigenc_is_mbc_newline_0x0a, 206 onigenc_single_byte_mbc_to_code, 207 onigenc_single_byte_code_to_mbclen, 208 onigenc_single_byte_code_to_mbc, 209 koi8_r_mbc_case_fold, 210 koi8_r_apply_all_case_fold, 211 koi8_r_get_case_fold_codes_by_str, 212 onigenc_minimum_property_name_to_ctype, 213 koi8_r_is_code_ctype, 214 onigenc_not_support_get_ctype_code_range, 215 onigenc_single_byte_left_adjust_char_head, 216 onigenc_always_true_is_allowed_reverse_match, 217 0, 218 ONIGENC_FLAG_NONE, 219}; 220ENC_ALIAS("CP878", "KOI8-R") 221 222