1 /**********************************************************************
2 cp1251.c - Oniguruma (regular expression library)
3 **********************************************************************/
4 /*-
5 * Copyright (c) 2006-2016 Byte <byte AT mail DOT kna DOT ru>
6 * K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 #include "regenc.h"
32
33 #define ENC_CP1251_TO_LOWER_CASE(c) EncCP1251_ToLowerCaseTable[c]
34 #define ENC_IS_CP1251_CTYPE(code,ctype) \
35 ((EncCP1251_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
36
37 static const UChar EncCP1251_ToLowerCaseTable[256] = {
38 '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
39 '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
40 '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
41 '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
42 '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
43 '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
44 '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
45 '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
46 '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
47 '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
48 '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
49 '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
50 '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
51 '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
52 '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
53 '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
54 '\220', '\203', '\202', '\203', '\204', '\205', '\206', '\207',
55 '\210', '\211', '\232', '\213', '\234', '\235', '\236', '\237',
56 '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
57 '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
58 '\240', '\242', '\242', '\274', '\244', '\264', '\246', '\247',
59 '\270', '\251', '\272', '\253', '\254', '\255', '\256', '\277',
60 '\260', '\261', '\263', '\263', '\264', '\265', '\266', '\267',
61 '\270', '\271', '\272', '\273', '\274', '\276', '\276', '\277',
62 '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
63 '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
64 '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
65 '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377',
66 '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
67 '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
68 '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
69 '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377'
70 };
71
72 static const unsigned short EncCP1251_CtypeTable[256] = {
73 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
74 0x4008, 0x428c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,
75 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
76 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
77 0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
78 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
79 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,
80 0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
81 0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,
82 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
83 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
84 0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,
85 0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,
86 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
87 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
88 0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,
89 0x34a2, 0x34a2, 0x01a0, 0x30e2, 0x01a0, 0x01a0, 0x01a0, 0x01a0,
90 0x0000, 0x01a0, 0x34a2, 0x01a0, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
91 0x30e2, 0x01a0, 0x01a0, 0x01a0, 0x01a0, 0x01a0, 0x01a0, 0x01a0,
92 0x0008, 0x0000, 0x30e2, 0x01a0, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
93 0x0280, 0x34a2, 0x30e2, 0x34a2, 0x01a0, 0x34a2, 0x01a0, 0x01a0,
94 0x34a2, 0x01a0, 0x34a2, 0x01a0, 0x01a0, 0x01a0, 0x01a0, 0x34a2,
95 0x01a0, 0x01a0, 0x34a2, 0x30e2, 0x30e2, 0x31e2, 0x01a0, 0x01a0,
96 0x30e2, 0x0000, 0x30e2, 0x01a0, 0x30e2, 0x34a2, 0x30e2, 0x30e2,
97 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
98 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
99 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
100 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
101 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
102 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
103 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
104 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2
105 };
106
107 static int
cp1251_mbc_case_fold(OnigCaseFoldType flag ARG_UNUSED,const UChar ** pp,const UChar * end ARG_UNUSED,UChar * lower)108 cp1251_mbc_case_fold(OnigCaseFoldType flag ARG_UNUSED,
109 const UChar** pp, const UChar* end ARG_UNUSED, UChar* lower)
110 {
111 const UChar* p = *pp;
112
113 *lower = ENC_CP1251_TO_LOWER_CASE(*p);
114 (*pp)++;
115 return 1;
116 }
117
118 static int
cp1251_is_code_ctype(OnigCodePoint code,unsigned int ctype)119 cp1251_is_code_ctype(OnigCodePoint code, unsigned int ctype)
120 {
121 if (code < 256)
122 return ENC_IS_CP1251_CTYPE(code, ctype);
123 else
124 return FALSE;
125 }
126
127 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
128 { 0xb8, 0xa8 },
129
130 { 0xe0, 0xc0 },
131 { 0xe1, 0xc1 },
132 { 0xe2, 0xc2 },
133 { 0xe3, 0xc3 },
134 { 0xe4, 0xc4 },
135 { 0xe5, 0xc5 },
136 { 0xe6, 0xc6 },
137 { 0xe7, 0xc7 },
138 { 0xe8, 0xc8 },
139 { 0xe9, 0xc9 },
140 { 0xea, 0xca },
141 { 0xeb, 0xcb },
142 { 0xec, 0xcc },
143 { 0xed, 0xcd },
144 { 0xee, 0xce },
145 { 0xef, 0xcf },
146
147 { 0xf0, 0xd0 },
148 { 0xf1, 0xd1 },
149 { 0xf2, 0xd2 },
150 { 0xf3, 0xd3 },
151 { 0xf4, 0xd4 },
152 { 0xf5, 0xd5 },
153 { 0xf6, 0xd6 },
154 { 0xf7, 0xd7 },
155 { 0xf8, 0xd8 },
156 { 0xf9, 0xd9 },
157 { 0xfa, 0xda },
158 { 0xfb, 0xdb },
159 { 0xfc, 0xdc },
160 { 0xfd, 0xdd },
161 { 0xfe, 0xde },
162 { 0xff, 0xdf }
163 };
164
165 static int
cp1251_apply_all_case_fold(OnigCaseFoldType flag,OnigApplyAllCaseFoldFunc f,void * arg)166 cp1251_apply_all_case_fold(OnigCaseFoldType flag,
167 OnigApplyAllCaseFoldFunc f, void* arg)
168 {
169 return onigenc_apply_all_case_fold_with_map(
170 sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
171 flag, f, arg);
172 }
173
174 static int
cp1251_get_case_fold_codes_by_str(OnigCaseFoldType flag,const OnigUChar * p,const OnigUChar * end,OnigCaseFoldCodeItem items[])175 cp1251_get_case_fold_codes_by_str(OnigCaseFoldType flag,
176 const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[])
177 {
178 return onigenc_get_case_fold_codes_by_str_with_map(
179 sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
180 flag, p, end, items);
181 }
182
183 OnigEncodingType OnigEncodingCP1251 = {
184 onigenc_single_byte_mbc_enc_len,
185 "CP1251", /* name */
186 1, /* max enc length */
187 1, /* min enc length */
188 onigenc_is_mbc_newline_0x0a,
189 onigenc_single_byte_mbc_to_code,
190 onigenc_single_byte_code_to_mbclen,
191 onigenc_single_byte_code_to_mbc,
192 cp1251_mbc_case_fold,
193 cp1251_apply_all_case_fold,
194 cp1251_get_case_fold_codes_by_str,
195 onigenc_minimum_property_name_to_ctype,
196 cp1251_is_code_ctype,
197 onigenc_not_support_get_ctype_code_range,
198 onigenc_single_byte_left_adjust_char_head,
199 onigenc_always_true_is_allowed_reverse_match,
200 NULL, /* init */
201 NULL, /* is_initialized */
202 onigenc_always_true_is_valid_mbc_string
203 };
204
