1 /**********************************************************************
2 iso8859_10.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_10_TO_LOWER_CASE(c) EncISO_8859_10_ToLowerCaseTable[c]
34 #define ENC_IS_ISO_8859_10_CTYPE(code,ctype) \
35 ((EncISO_8859_10_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
36
37 static const UChar EncISO_8859_10_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', '\262', '\263', '\264', '\265', '\266', '\247',
59 '\270', '\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', '\367',
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_10_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, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x00a0,
94 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x01a0, 0x34a2, 0x34a2,
95 0x00a0, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x01a0,
96 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x01a0, 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, 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, 0x30e2,
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_10_TO_LOWER_CASE(*p);
122 (*pp)++;
123 return 1;
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_10_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 int
is_code_ctype(OnigCodePoint code,unsigned int ctype,OnigEncoding enc ARG_UNUSED)149 is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED)
150 {
151 if (code < 256)
152 return ENC_IS_ISO_8859_10_CTYPE(code, ctype);
153 else
154 return FALSE;
155 }
156
157 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
158 { 0xa1, 0xb1 },
159 { 0xa2, 0xb2 },
160 { 0xa3, 0xb3 },
161 { 0xa4, 0xb4 },
162 { 0xa5, 0xb5 },
163 { 0xa6, 0xb6 },
164 { 0xa8, 0xb8 },
165 { 0xa9, 0xb9 },
166 { 0xaa, 0xba },
167 { 0xab, 0xbb },
168 { 0xac, 0xbc },
169 { 0xae, 0xbe },
170 { 0xaf, 0xbf },
171
172 { 0xc0, 0xe0 },
173 { 0xc1, 0xe1 },
174 { 0xc2, 0xe2 },
175 { 0xc3, 0xe3 },
176 { 0xc4, 0xe4 },
177 { 0xc5, 0xe5 },
178 { 0xc6, 0xe6 },
179 { 0xc7, 0xe7 },
180 { 0xc8, 0xe8 },
181 { 0xc9, 0xe9 },
182 { 0xca, 0xea },
183 { 0xcb, 0xeb },
184 { 0xcc, 0xec },
185 { 0xcd, 0xed },
186 { 0xce, 0xee },
187 { 0xcf, 0xef },
188
189 { 0xd0, 0xf0 },
190 { 0xd1, 0xf1 },
191 { 0xd2, 0xf2 },
192 { 0xd3, 0xf3 },
193 { 0xd4, 0xf4 },
194 { 0xd5, 0xf5 },
195 { 0xd6, 0xf6 },
196 { 0xd7, 0xf7 },
197 { 0xd8, 0xf8 },
198 { 0xd9, 0xf9 },
199 { 0xda, 0xfa },
200 { 0xdb, 0xfb },
201 { 0xdc, 0xfc },
202 { 0xdd, 0xfd },
203 { 0xde, 0xfe }
204 };
205
206 static int
apply_all_case_fold(OnigCaseFoldType flag,OnigApplyAllCaseFoldFunc f,void * arg,OnigEncoding enc ARG_UNUSED)207 apply_all_case_fold(OnigCaseFoldType flag,
208 OnigApplyAllCaseFoldFunc f, void* arg,
209 OnigEncoding enc ARG_UNUSED)
210 {
211 return onigenc_apply_all_case_fold_with_map(
212 numberof(CaseFoldMap), CaseFoldMap, 1,
213 flag, f, arg);
214 }
215
216 static int
get_case_fold_codes_by_str(OnigCaseFoldType flag,const OnigUChar * p,const OnigUChar * end,OnigCaseFoldCodeItem items[],OnigEncoding enc ARG_UNUSED)217 get_case_fold_codes_by_str(OnigCaseFoldType flag,
218 const OnigUChar* p, const OnigUChar* end,
219 OnigCaseFoldCodeItem items[],
220 OnigEncoding enc ARG_UNUSED)
221 {
222 return onigenc_get_case_fold_codes_by_str_with_map(
223 numberof(CaseFoldMap), CaseFoldMap, 1,
224 flag, p, end, items);
225 }
226
227 static int
case_map(OnigCaseFoldType * flagP,const OnigUChar ** pp,const OnigUChar * end,OnigUChar * to,OnigUChar * to_end,const struct OnigEncodingTypeST * enc)228 case_map(OnigCaseFoldType* flagP, const OnigUChar** pp,
229 const OnigUChar* end, OnigUChar* to, OnigUChar* to_end,
230 const struct OnigEncodingTypeST* enc)
231 {
232 OnigCodePoint code;
233 OnigUChar *to_start = to;
234 OnigCaseFoldType flags = *flagP;
235
236 while (*pp < end && to < to_end) {
237 code = *(*pp)++;
238 if (code == SHARP_s) {
239 if (flags & ONIGENC_CASE_UPCASE) {
240 flags |= ONIGENC_CASE_MODIFIED;
241 *to++ = 'S';
242 code = (flags & ONIGENC_CASE_TITLECASE) ? 's' : 'S';
243 }
244 else if (flags & ONIGENC_CASE_FOLD) {
245 flags |= ONIGENC_CASE_MODIFIED;
246 *to++ = 's';
247 code = 's';
248 }
249 }
250 else if (code == 0xBD || code == 0xFF)
251 ;
252 else if ((EncISO_8859_10_CtypeTable[code] & BIT_CTYPE_UPPER)
253 && (flags & (ONIGENC_CASE_DOWNCASE | ONIGENC_CASE_FOLD))) {
254 flags |= ONIGENC_CASE_MODIFIED;
255 code = ENC_ISO_8859_10_TO_LOWER_CASE(code);
256 }
257 else if ((EncISO_8859_10_CtypeTable[code] & BIT_CTYPE_LOWER)
258 && (flags & ONIGENC_CASE_UPCASE)) {
259 flags |= ONIGENC_CASE_MODIFIED;
260 if (code >= 0xA0 && code <= 0xBF)
261 code -= 0x10;
262 else
263 code -= 0x20;
264 }
265 *to++ = code;
266 if (flags & ONIGENC_CASE_TITLECASE) /* switch from titlecase to lowercase for capitalize */
267 flags ^= (ONIGENC_CASE_UPCASE | ONIGENC_CASE_DOWNCASE | ONIGENC_CASE_TITLECASE);
268 }
269 *flagP = flags;
270 return (int )(to - to_start);
271 }
272
273 OnigEncodingDefine(iso_8859_10, ISO_8859_10) = {
274 onigenc_single_byte_mbc_enc_len,
275 "ISO-8859-10", /* name */
276 1, /* max enc length */
277 1, /* min enc length */
278 onigenc_is_mbc_newline_0x0a,
279 onigenc_single_byte_mbc_to_code,
280 onigenc_single_byte_code_to_mbclen,
281 onigenc_single_byte_code_to_mbc,
282 mbc_case_fold,
283 apply_all_case_fold,
284 get_case_fold_codes_by_str,
285 onigenc_minimum_property_name_to_ctype,
286 is_code_ctype,
287 onigenc_not_support_get_ctype_code_range,
288 onigenc_single_byte_left_adjust_char_head,
289 onigenc_always_true_is_allowed_reverse_match,
290 case_map,
291 0,
292 ONIGENC_FLAG_NONE,
293 };
294 ENC_ALIAS("ISO8859-10", "ISO-8859-10")
295