1 /**********************************************************************
2 iso8859_2.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 #include "iso_8859.h"
32
33 #define ENC_ISO_8859_2_TO_LOWER_CASE(c) EncISO_8859_2_ToLowerCaseTable[c]
34 #define ENC_IS_ISO_8859_2_CTYPE(code,ctype) \
35 ((EncISO_8859_2_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
36
37 static const UChar EncISO_8859_2_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 '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
55 '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
56 '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
57 '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
58 '\240', '\261', '\242', '\263', '\244', '\265', '\266', '\247',
59 '\250', '\271', '\272', '\273', '\274', '\255', '\276', '\277',
60 '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
61 '\270', '\271', '\272', '\273', '\274', '\275', '\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', '\327',
65 '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\337',
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 EncISO_8859_2_CtypeTable[256] = {
73 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
74 0x4008, 0x420c, 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 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 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
93 0x0284, 0x34a2, 0x00a0, 0x34a2, 0x00a0, 0x34a2, 0x34a2, 0x00a0,
94 0x00a0, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x01a0, 0x34a2, 0x34a2,
95 0x00a0, 0x30e2, 0x00a0, 0x30e2, 0x00a0, 0x30e2, 0x30e2, 0x00a0,
96 0x00a0, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0, 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, 0x00a0,
100 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2,
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, 0x00a0,
104 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0
105 };
106
107 static int
mbc_case_fold(OnigCaseFoldType flag,const UChar ** pp,const UChar * end ARG_UNUSED,UChar * lower,OnigEncoding enc ARG_UNUSED)108 mbc_case_fold(OnigCaseFoldType flag,
109 const UChar** pp, const UChar* end ARG_UNUSED, UChar* lower,
110 OnigEncoding enc ARG_UNUSED)
111 {
112 const UChar* p = *pp;
113
114 if (*p == SHARP_s && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
115 *lower++ = 's';
116 *lower = 's';
117 (*pp)++;
118 return 2;
119 }
120
121 *lower = ENC_ISO_8859_2_TO_LOWER_CASE(*p);
122 (*pp)++;
123 return 1; /* return byte length of converted char to lower */
124 }
125
126 #if 0
127 static int
128 is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp, const UChar* end)
129 {
130 int v;
131 const UChar* p = *pp;
132
133 if (*p == SHARP_s && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
134 (*pp)++;
135 return TRUE;
136 }
137
138 (*pp)++;
139 v = (EncISO_8859_2_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
140 if ((v | BIT_CTYPE_LOWER) != 0) {
141 return TRUE;
142 }
143
144 return (v != 0 ? TRUE : FALSE);
145 }
146 #endif
147
148 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
149 { 0xa1, 0xb1 },
150 { 0xa3, 0xb3 },
151 { 0xa5, 0xb5 },
152 { 0xa6, 0xb6 },
153 { 0xa9, 0xb9 },
154 { 0xaa, 0xba },
155 { 0xab, 0xbb },
156 { 0xac, 0xbc },
157 { 0xae, 0xbe },
158 { 0xaf, 0xbf },
159
160 { 0xc0, 0xe0 },
161 { 0xc1, 0xe1 },
162 { 0xc2, 0xe2 },
163 { 0xc3, 0xe3 },
164 { 0xc4, 0xe4 },
165 { 0xc5, 0xe5 },
166 { 0xc6, 0xe6 },
167 { 0xc7, 0xe7 },
168 { 0xc8, 0xe8 },
169 { 0xc9, 0xe9 },
170 { 0xca, 0xea },
171 { 0xcb, 0xeb },
172 { 0xcc, 0xec },
173 { 0xcd, 0xed },
174 { 0xce, 0xee },
175 { 0xcf, 0xef },
176
177 { 0xd0, 0xf0 },
178 { 0xd1, 0xf1 },
179 { 0xd2, 0xf2 },
180 { 0xd3, 0xf3 },
181 { 0xd4, 0xf4 },
182 { 0xd5, 0xf5 },
183 { 0xd6, 0xf6 },
184 { 0xd8, 0xf8 },
185 { 0xd9, 0xf9 },
186 { 0xda, 0xfa },
187 { 0xdb, 0xfb },
188 { 0xdc, 0xfc },
189 { 0xdd, 0xfd },
190 { 0xde, 0xfe }
191 };
192
193 static int
apply_all_case_fold(OnigCaseFoldType flag,OnigApplyAllCaseFoldFunc f,void * arg,OnigEncoding enc ARG_UNUSED)194 apply_all_case_fold(OnigCaseFoldType flag,
195 OnigApplyAllCaseFoldFunc f, void* arg,
196 OnigEncoding enc ARG_UNUSED)
197 {
198 return onigenc_apply_all_case_fold_with_map(
199 numberof(CaseFoldMap), CaseFoldMap, 1,
200 flag, f, arg);
201 }
202
203 static int
get_case_fold_codes_by_str(OnigCaseFoldType flag,const OnigUChar * p,const OnigUChar * end,OnigCaseFoldCodeItem items[],OnigEncoding enc ARG_UNUSED)204 get_case_fold_codes_by_str(OnigCaseFoldType flag,
205 const OnigUChar* p, const OnigUChar* end,
206 OnigCaseFoldCodeItem items[],
207 OnigEncoding enc ARG_UNUSED)
208 {
209 return onigenc_get_case_fold_codes_by_str_with_map(
210 numberof(CaseFoldMap), CaseFoldMap, 1,
211 flag, p, end, items);
212 }
213
214 static int
is_code_ctype(OnigCodePoint code,unsigned int ctype,OnigEncoding enc ARG_UNUSED)215 is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED)
216 {
217 if (code < 256)
218 return ENC_IS_ISO_8859_2_CTYPE(code, ctype);
219 else
220 return FALSE;
221 }
222
223 static int
case_map(OnigCaseFoldType * flagP,const OnigUChar ** pp,const OnigUChar * end,OnigUChar * to,OnigUChar * to_end,const struct OnigEncodingTypeST * enc)224 case_map(OnigCaseFoldType* flagP, const OnigUChar** pp,
225 const OnigUChar* end, OnigUChar* to, OnigUChar* to_end,
226 const struct OnigEncodingTypeST* enc)
227 {
228 OnigCodePoint code;
229 OnigUChar *to_start = to;
230 OnigCaseFoldType flags = *flagP;
231
232 while (*pp < end && to < to_end) {
233 code = *(*pp)++;
234 if (code == SHARP_s) {
235 if (flags & ONIGENC_CASE_UPCASE) {
236 flags |= ONIGENC_CASE_MODIFIED;
237 *to++ = 'S';
238 code = (flags & ONIGENC_CASE_TITLECASE) ? 's' : 'S';
239 }
240 else if (flags & ONIGENC_CASE_FOLD) {
241 flags |= ONIGENC_CASE_MODIFIED;
242 *to++ = 's';
243 code = 's';
244 }
245 }
246 else if ((EncISO_8859_2_CtypeTable[code] & BIT_CTYPE_UPPER)
247 && (flags & (ONIGENC_CASE_DOWNCASE | ONIGENC_CASE_FOLD))) {
248 flags |= ONIGENC_CASE_MODIFIED;
249 code = ENC_ISO_8859_2_TO_LOWER_CASE(code);
250 }
251 else if ((EncISO_8859_2_CtypeTable[code] & BIT_CTYPE_LOWER)
252 && (flags & ONIGENC_CASE_UPCASE)) {
253 if (code >= 0xB1 && code <= 0xBF) {
254 flags |= ONIGENC_CASE_MODIFIED;
255 code -= 0x10;
256 }
257 else {
258 flags |= ONIGENC_CASE_MODIFIED;
259 code -= 0x20;
260 }
261 }
262 *to++ = code;
263 if (flags & ONIGENC_CASE_TITLECASE) /* switch from titlecase to lowercase for capitalize */
264 flags ^= (ONIGENC_CASE_UPCASE | ONIGENC_CASE_DOWNCASE | ONIGENC_CASE_TITLECASE);
265 }
266 *flagP = flags;
267 return (int )(to - to_start);
268 }
269
270 OnigEncodingDefine(iso_8859_2, ISO_8859_2) = {
271 onigenc_single_byte_mbc_enc_len,
272 "ISO-8859-2", /* name */
273 1, /* max enc length */
274 1, /* min enc length */
275 onigenc_is_mbc_newline_0x0a,
276 onigenc_single_byte_mbc_to_code,
277 onigenc_single_byte_code_to_mbclen,
278 onigenc_single_byte_code_to_mbc,
279 mbc_case_fold,
280 apply_all_case_fold,
281 get_case_fold_codes_by_str,
282 onigenc_minimum_property_name_to_ctype,
283 is_code_ctype,
284 onigenc_not_support_get_ctype_code_range,
285 onigenc_single_byte_left_adjust_char_head,
286 onigenc_always_true_is_allowed_reverse_match,
287 case_map,
288 0,
289 ONIGENC_FLAG_NONE,
290 };
291 ENC_ALIAS("ISO8859-2", "ISO-8859-2")
292