1 /**********************************************************************
2 iso8859_13.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_13_TO_LOWER_CASE(c) EncISO_8859_13_ToLowerCaseTable[c]
34 #define ENC_IS_ISO_8859_13_CTYPE(code,ctype) \
35 ((EncISO_8859_13_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
36
37 static const UChar EncISO_8859_13_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', '\246', '\247',
59 '\270', '\251', '\272', '\253', '\254', '\255', '\256', '\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_13_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, 0x01a0, 0x00a0, 0x00a0,
94 0x34a2, 0x00a0, 0x34a2, 0x01a0, 0x00a0, 0x01a0, 0x00a0, 0x34a2,
95 0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x01a0, 0x30e2, 0x00a0, 0x01a0,
96 0x30e2, 0x10a0, 0x30e2, 0x01a0, 0x10a0, 0x10a0, 0x10a0, 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, 0x01a0
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_13_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_13_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
140 if ((v | BIT_CTYPE_LOWER) != 0) {
141 /* 0xdf, 0xb5 are lower case letter, but can't convert. */
142 if (*p == 0xb5)
143 return FALSE;
144 else
145 return TRUE;
146 }
147
148 return (v != 0 ? TRUE : FALSE);
149 }
150 #endif
151
152 static int
is_code_ctype(OnigCodePoint code,unsigned int ctype,OnigEncoding enc ARG_UNUSED)153 is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED)
154 {
155 if (code < 256)
156 return ENC_IS_ISO_8859_13_CTYPE(code, ctype);
157 else
158 return FALSE;
159 }
160
161 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
162 { 0xa8, 0xb8 },
163 { 0xaa, 0xba },
164 { 0xaf, 0xbf },
165
166 { 0xc0, 0xe0 },
167 { 0xc1, 0xe1 },
168 { 0xc2, 0xe2 },
169 { 0xc3, 0xe3 },
170 { 0xc4, 0xe4 },
171 { 0xc5, 0xe5 },
172 { 0xc6, 0xe6 },
173 { 0xc7, 0xe7 },
174 { 0xc8, 0xe8 },
175 { 0xc9, 0xe9 },
176 { 0xca, 0xea },
177 { 0xcb, 0xeb },
178 { 0xcc, 0xec },
179 { 0xcd, 0xed },
180 { 0xce, 0xee },
181 { 0xcf, 0xef },
182
183 { 0xd0, 0xf0 },
184 { 0xd1, 0xf1 },
185 { 0xd2, 0xf2 },
186 { 0xd3, 0xf3 },
187 { 0xd4, 0xf4 },
188 { 0xd5, 0xf5 },
189 { 0xd6, 0xf6 },
190 { 0xd8, 0xf8 },
191 { 0xd9, 0xf9 },
192 { 0xda, 0xfa },
193 { 0xdb, 0xfb },
194 { 0xdc, 0xfc },
195 { 0xdd, 0xfd },
196 { 0xde, 0xfe }
197 };
198
199 static int
apply_all_case_fold(OnigCaseFoldType flag,OnigApplyAllCaseFoldFunc f,void * arg,OnigEncoding enc ARG_UNUSED)200 apply_all_case_fold(OnigCaseFoldType flag,
201 OnigApplyAllCaseFoldFunc f, void* arg,
202 OnigEncoding enc ARG_UNUSED)
203 {
204 return onigenc_apply_all_case_fold_with_map(
205 numberof(CaseFoldMap), CaseFoldMap, 1,
206 flag, f, arg);
207 }
208
209 static int
get_case_fold_codes_by_str(OnigCaseFoldType flag,const OnigUChar * p,const OnigUChar * end,OnigCaseFoldCodeItem items[],OnigEncoding enc ARG_UNUSED)210 get_case_fold_codes_by_str(OnigCaseFoldType flag,
211 const OnigUChar* p, const OnigUChar* end,
212 OnigCaseFoldCodeItem items[],
213 OnigEncoding enc ARG_UNUSED)
214 {
215 return onigenc_get_case_fold_codes_by_str_with_map(
216 numberof(CaseFoldMap), CaseFoldMap, 1,
217 flag, p, end, items);
218 }
219
220 static int
case_map(OnigCaseFoldType * flagP,const OnigUChar ** pp,const OnigUChar * end,OnigUChar * to,OnigUChar * to_end,const struct OnigEncodingTypeST * enc)221 case_map(OnigCaseFoldType* flagP, const OnigUChar** pp,
222 const OnigUChar* end, OnigUChar* to, OnigUChar* to_end,
223 const struct OnigEncodingTypeST* enc)
224 {
225 OnigCodePoint code;
226 OnigUChar *to_start = to;
227 OnigCaseFoldType flags = *flagP;
228
229 while (*pp < end && to < to_end) {
230 code = *(*pp)++;
231 if (code == SHARP_s) {
232 if (flags & ONIGENC_CASE_UPCASE) {
233 flags |= ONIGENC_CASE_MODIFIED;
234 *to++ = 'S';
235 code = (flags & ONIGENC_CASE_TITLECASE) ? 's' : 'S';
236 }
237 else if (flags & ONIGENC_CASE_FOLD) {
238 flags |= ONIGENC_CASE_MODIFIED;
239 *to++ = 's';
240 code = 's';
241 }
242 }
243 else if ((EncISO_8859_13_CtypeTable[code] & BIT_CTYPE_UPPER)
244 && (flags & (ONIGENC_CASE_DOWNCASE | ONIGENC_CASE_FOLD))) {
245 flags |= ONIGENC_CASE_MODIFIED;
246 code = ENC_ISO_8859_13_TO_LOWER_CASE(code);
247 }
248 else if (code == 0xB5)
249 ;
250 else if ((EncISO_8859_13_CtypeTable[code] & BIT_CTYPE_LOWER)
251 && (flags & ONIGENC_CASE_UPCASE)) {
252 flags |= ONIGENC_CASE_MODIFIED;
253 if (code == 0xB8 || code == 0xBA || code == 0xBF) {
254 code -= 0x10;
255 }
256 else {
257 code -= 0x20;
258 }
259 }
260 *to++ = code;
261 if (flags & ONIGENC_CASE_TITLECASE) /* switch from titlecase to lowercase for capitalize */
262 flags ^= (ONIGENC_CASE_UPCASE | ONIGENC_CASE_DOWNCASE | ONIGENC_CASE_TITLECASE);
263 }
264 *flagP = flags;
265 return (int )(to - to_start);
266 }
267
268 OnigEncodingDefine(iso_8859_13, ISO_8859_13) = {
269 onigenc_single_byte_mbc_enc_len,
270 "ISO-8859-13", /* name */
271 1, /* max enc length */
272 1, /* min enc length */
273 onigenc_is_mbc_newline_0x0a,
274 onigenc_single_byte_mbc_to_code,
275 onigenc_single_byte_code_to_mbclen,
276 onigenc_single_byte_code_to_mbc,
277 mbc_case_fold,
278 apply_all_case_fold,
279 get_case_fold_codes_by_str,
280 onigenc_minimum_property_name_to_ctype,
281 is_code_ctype,
282 onigenc_not_support_get_ctype_code_range,
283 onigenc_single_byte_left_adjust_char_head,
284 onigenc_always_true_is_allowed_reverse_match,
285 case_map,
286 0,
287 ONIGENC_FLAG_NONE,
288 };
289 ENC_ALIAS("ISO8859-13", "ISO-8859-13")
290