1 /**********************************************************************
2 iso8859_15.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_15_TO_LOWER_CASE(c) EncISO_8859_15_ToLowerCaseTable[c]
34 #define ENC_IS_ISO_8859_15_CTYPE(code,ctype) \
35 ((EncISO_8859_15_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
36
37 static const UChar EncISO_8859_15_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', '\241', '\242', '\243', '\244', '\245', '\250', '\247',
59 '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
60 '\260', '\261', '\262', '\263', '\270', '\265', '\266', '\267',
61 '\270', '\271', '\272', '\273', '\275', '\275', '\377', '\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_15_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, 0x01a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x34a2, 0x00a0,
94 0x30e2, 0x00a0, 0x30e2, 0x01a0, 0x00a0, 0x01a0, 0x00a0, 0x00a0,
95 0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x34a2, 0x30e2, 0x00a0, 0x01a0,
96 0x30e2, 0x10a0, 0x30e2, 0x01a0, 0x34a2, 0x30e2, 0x34a2, 0x01a0,
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, 0x30e2
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,
110 UChar* lower, 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_15_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,
129 const UChar** pp, const UChar* end)
130 {
131 int v;
132 const UChar* p = *pp;
133
134 if (*p == SHARP_s && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
135 (*pp)++;
136 return TRUE;
137 }
138
139 (*pp)++;
140 v = (EncISO_8859_15_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
141 if ((v | BIT_CTYPE_LOWER) != 0) {
142 /* 0xdf etc.. are lower case letter, but can't convert. */
143 if (*p == 0xaa || *p == 0xb5 || *p == 0xba)
144 return FALSE;
145 else
146 return TRUE;
147 }
148
149 return (v != 0 ? TRUE : FALSE);
150 }
151 #endif
152
153 static int
is_code_ctype(OnigCodePoint code,unsigned int ctype,OnigEncoding enc ARG_UNUSED)154 is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED)
155 {
156 if (code < 256)
157 return ENC_IS_ISO_8859_15_CTYPE(code, ctype);
158 else
159 return FALSE;
160 }
161
162 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
163 { 0xa6, 0xa8 },
164
165 { 0xb4, 0xb8 },
166 { 0xbc, 0xbd },
167 { 0xbe, 0xff },
168
169 { 0xc0, 0xe0 },
170 { 0xc1, 0xe1 },
171 { 0xc2, 0xe2 },
172 { 0xc3, 0xe3 },
173 { 0xc4, 0xe4 },
174 { 0xc5, 0xe5 },
175 { 0xc6, 0xe6 },
176 { 0xc7, 0xe7 },
177 { 0xc8, 0xe8 },
178 { 0xc9, 0xe9 },
179 { 0xca, 0xea },
180 { 0xcb, 0xeb },
181 { 0xcc, 0xec },
182 { 0xcd, 0xed },
183 { 0xce, 0xee },
184 { 0xcf, 0xef },
185
186 { 0xd0, 0xf0 },
187 { 0xd1, 0xf1 },
188 { 0xd2, 0xf2 },
189 { 0xd3, 0xf3 },
190 { 0xd4, 0xf4 },
191 { 0xd5, 0xf5 },
192 { 0xd6, 0xf6 },
193 { 0xd8, 0xf8 },
194 { 0xd9, 0xf9 },
195 { 0xda, 0xfa },
196 { 0xdb, 0xfb },
197 { 0xdc, 0xfc },
198 { 0xdd, 0xfd },
199 { 0xde, 0xfe }
200 };
201
202 static int
apply_all_case_fold(OnigCaseFoldType flag,OnigApplyAllCaseFoldFunc f,void * arg,OnigEncoding enc ARG_UNUSED)203 apply_all_case_fold(OnigCaseFoldType flag,
204 OnigApplyAllCaseFoldFunc f, void* arg,
205 OnigEncoding enc ARG_UNUSED)
206 {
207 return onigenc_apply_all_case_fold_with_map(
208 numberof(CaseFoldMap), CaseFoldMap, 1,
209 flag, f, arg);
210 }
211
212 static int
get_case_fold_codes_by_str(OnigCaseFoldType flag,const OnigUChar * p,const OnigUChar * end,OnigCaseFoldCodeItem items[],OnigEncoding enc ARG_UNUSED)213 get_case_fold_codes_by_str(OnigCaseFoldType flag,
214 const OnigUChar* p, const OnigUChar* end,
215 OnigCaseFoldCodeItem items[],
216 OnigEncoding enc ARG_UNUSED)
217 {
218 return onigenc_get_case_fold_codes_by_str_with_map(
219 numberof(CaseFoldMap), CaseFoldMap, 1,
220 flag, p, end, items);
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 (code == 0xAA || code == 0xBA || code == 0xB5)
247 ;
248 else if ((EncISO_8859_15_CtypeTable[code] & BIT_CTYPE_UPPER)
249 && (flags & (ONIGENC_CASE_DOWNCASE | ONIGENC_CASE_FOLD))) {
250 flags |= ONIGENC_CASE_MODIFIED;
251 code = ENC_ISO_8859_15_TO_LOWER_CASE(code);
252 }
253 else if ((EncISO_8859_15_CtypeTable[code] & BIT_CTYPE_LOWER)
254 && (flags & ONIGENC_CASE_UPCASE)) {
255 flags |= ONIGENC_CASE_MODIFIED;
256 if (code == 0xA8)
257 code -= 2;
258 else if (code == 0xB8)
259 code -= 4;
260 else if (code == 0xBD)
261 code -= 1;
262 else if (code == 0xFF)
263 code -= 0x41;
264 else
265 code -= 0x20;
266 }
267 *to++ = code;
268 if (flags & ONIGENC_CASE_TITLECASE) /* switch from titlecase to lowercase for capitalize */
269 flags ^= (ONIGENC_CASE_UPCASE | ONIGENC_CASE_DOWNCASE | ONIGENC_CASE_TITLECASE);
270 }
271 *flagP = flags;
272 return (int )(to - to_start);
273 }
274
275 OnigEncodingDefine(iso_8859_15, ISO_8859_15) = {
276 onigenc_single_byte_mbc_enc_len,
277 "ISO-8859-15", /* name */
278 1, /* max enc length */
279 1, /* min enc length */
280 onigenc_is_mbc_newline_0x0a,
281 onigenc_single_byte_mbc_to_code,
282 onigenc_single_byte_code_to_mbclen,
283 onigenc_single_byte_code_to_mbc,
284 mbc_case_fold,
285 apply_all_case_fold,
286 get_case_fold_codes_by_str,
287 onigenc_minimum_property_name_to_ctype,
288 is_code_ctype,
289 onigenc_not_support_get_ctype_code_range,
290 onigenc_single_byte_left_adjust_char_head,
291 onigenc_always_true_is_allowed_reverse_match,
292 case_map,
293 0,
294 ONIGENC_FLAG_NONE,
295 };
296 ENC_ALIAS("ISO8859-15", "ISO-8859-15")
297