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
32 #define ENC_ISO_8859_13_TO_LOWER_CASE(c) EncISO_8859_13_ToLowerCaseTable[c]
33 #define ENC_IS_ISO_8859_13_CTYPE(code,ctype) \
34 ((EncISO_8859_13_CtypeTable[code] & ctype) != 0)
35
36 static const UChar EncISO_8859_13_ToLowerCaseTable[256] = {
37 '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
38 '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
39 '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
40 '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
41 '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
42 '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
43 '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
44 '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
45 '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
46 '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
47 '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
48 '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
49 '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
50 '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
51 '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
52 '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
53 '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
54 '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
55 '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
56 '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
57 '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
58 '\270', '\251', '\272', '\253', '\254', '\255', '\256', '\277',
59 '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
60 '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
61 '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
62 '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
63 '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\327',
64 '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\337',
65 '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
66 '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
67 '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
68 '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377'
69 };
70
71 static const unsigned short EncISO_8859_13_CtypeTable[256] = {
72 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008,
73 0x2008, 0x220c, 0x2209, 0x2208, 0x2208, 0x2208, 0x2008, 0x2008,
74 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008,
75 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008,
76 0x2284, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0,
77 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0,
78 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0,
79 0x38b0, 0x38b0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0,
80 0x21a0, 0x3ca2, 0x3ca2, 0x3ca2, 0x3ca2, 0x3ca2, 0x3ca2, 0x34a2,
81 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
82 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
83 0x34a2, 0x34a2, 0x34a2, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x31a0,
84 0x21a0, 0x38e2, 0x38e2, 0x38e2, 0x38e2, 0x38e2, 0x38e2, 0x30e2,
85 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
86 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
87 0x30e2, 0x30e2, 0x30e2, 0x21a0, 0x21a0, 0x21a0, 0x21a0, 0x2008,
88 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
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 0x0284, 0x01a0, 0x00a0, 0x00a0, 0x00a0, 0x01a0, 0x00a0, 0x00a0,
93 0x14a2, 0x00a0, 0x14a2, 0x01a0, 0x00a0, 0x01a0, 0x00a0, 0x14a2,
94 0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x01a0, 0x10e2, 0x00a0, 0x01a0,
95 0x10e2, 0x10a0, 0x10e2, 0x01a0, 0x10a0, 0x10a0, 0x10a0, 0x10e2,
96 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2,
97 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2,
98 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x00a0,
99 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x10e2,
100 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2,
101 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2,
102 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x00a0,
103 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x01a0
104 };
105
106 static int
mbc_to_normalize(OnigAmbigType flag,const UChar ** pp,const UChar * end,UChar * lower)107 mbc_to_normalize(OnigAmbigType flag,
108 const UChar** pp, const UChar* end, UChar* lower)
109 {
110 const UChar* p = *pp;
111
112 if (((flag & ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE) != 0 &&
113 ONIGENC_IS_MBC_ASCII(p)) ||
114 ((flag & ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE) != 0 &&
115 !ONIGENC_IS_MBC_ASCII(p))) {
116 *lower = ENC_ISO_8859_13_TO_LOWER_CASE(*p);
117 }
118 else {
119 *lower = *p;
120 }
121 (*pp)++;
122 return 1; /* return byte length of converted char to lower */
123 }
124
125 static int
is_mbc_ambiguous(OnigAmbigType flag,const UChar ** pp,const UChar * end)126 is_mbc_ambiguous(OnigAmbigType flag, const UChar** pp, const UChar* end)
127 {
128 const UChar* p = *pp;
129
130 (*pp)++;
131 if (((flag & ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE) != 0 &&
132 ONIGENC_IS_MBC_ASCII(p)) ||
133 ((flag & ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE) != 0 &&
134 !ONIGENC_IS_MBC_ASCII(p))) {
135 int v = (EncISO_8859_13_CtypeTable[*p] &
136 (ONIGENC_CTYPE_UPPER | ONIGENC_CTYPE_LOWER));
137
138 if ((v | ONIGENC_CTYPE_LOWER) != 0) {
139 /* 0xdf, 0xb5 are lower case letter, but can't convert. */
140 if (*p == 0xdf || *p == 0xb5)
141 return FALSE;
142 else
143 return TRUE;
144 }
145
146 return (v != 0 ? TRUE : FALSE);
147 }
148 return FALSE;
149 }
150
151 static int
is_code_ctype(OnigCodePoint code,unsigned int ctype)152 is_code_ctype(OnigCodePoint code, unsigned int ctype)
153 {
154 if (code < 256)
155 return ENC_IS_ISO_8859_13_CTYPE(code, ctype);
156 else
157 return FALSE;
158 }
159
160 static int
get_all_pair_ambig_codes(OnigAmbigType flag,const OnigPairAmbigCodes ** ccs)161 get_all_pair_ambig_codes(OnigAmbigType flag, const OnigPairAmbigCodes** ccs)
162 {
163 static const OnigPairAmbigCodes cc[] = {
164 { 0xc0, 0xe0 },
165 { 0xc1, 0xe1 },
166 { 0xc2, 0xe2 },
167 { 0xc3, 0xe3 },
168 { 0xc4, 0xe4 },
169 { 0xc5, 0xe5 },
170 { 0xc6, 0xe6 },
171 { 0xc7, 0xe7 },
172 { 0xc8, 0xe8 },
173 { 0xc9, 0xe9 },
174 { 0xca, 0xea },
175 { 0xcb, 0xeb },
176 { 0xcc, 0xec },
177 { 0xcd, 0xed },
178 { 0xce, 0xee },
179 { 0xcf, 0xef },
180
181 { 0xd0, 0xf0 },
182 { 0xd1, 0xf1 },
183 { 0xd2, 0xf2 },
184 { 0xd3, 0xf3 },
185 { 0xd4, 0xf4 },
186 { 0xd5, 0xf5 },
187 { 0xd6, 0xf6 },
188 { 0xd8, 0xf8 },
189 { 0xd9, 0xf9 },
190 { 0xda, 0xfa },
191 { 0xdb, 0xfb },
192 { 0xdc, 0xfc },
193 { 0xdd, 0xfd },
194 { 0xde, 0xfe },
195
196 { 0xe0, 0xc0 },
197 { 0xe1, 0xc1 },
198 { 0xe2, 0xc2 },
199 { 0xe3, 0xc3 },
200 { 0xe4, 0xc4 },
201 { 0xe5, 0xc5 },
202 { 0xe6, 0xc6 },
203 { 0xe7, 0xc7 },
204 { 0xe8, 0xc8 },
205 { 0xe9, 0xc9 },
206 { 0xea, 0xca },
207 { 0xeb, 0xcb },
208 { 0xec, 0xcc },
209 { 0xed, 0xcd },
210 { 0xee, 0xce },
211 { 0xef, 0xcf },
212
213 { 0xf0, 0xd0 },
214 { 0xf1, 0xd1 },
215 { 0xf2, 0xd2 },
216 { 0xf3, 0xd3 },
217 { 0xf4, 0xd4 },
218 { 0xf5, 0xd5 },
219 { 0xf6, 0xd6 },
220 { 0xf8, 0xd8 },
221 { 0xf9, 0xd9 },
222 { 0xfa, 0xda },
223 { 0xfb, 0xdb },
224 { 0xfc, 0xdc },
225 { 0xfd, 0xdd },
226 { 0xfe, 0xde }
227 };
228
229 if (flag == ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE) {
230 *ccs = OnigAsciiPairAmbigCodes;
231 return 52;
232 }
233 if (flag == ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE) {
234 *ccs = cc;
235 return sizeof(cc) / sizeof(OnigPairAmbigCodes);
236 }
237 else
238 return 0;
239 }
240
241 OnigEncodingType OnigEncodingISO_8859_13 = {
242 onigenc_single_byte_mbc_enc_len,
243 "ISO-8859-13", /* name */
244 1, /* max enc length */
245 1, /* min enc length */
246 (ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE |
247 ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE ),
248 {
249 (OnigCodePoint )'\\' /* esc */
250 , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar '.' */
251 , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anytime '*' */
252 , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* zero or one time '?' */
253 , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* one or more time '+' */
254 , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar anytime */
255 },
256 onigenc_is_mbc_newline_0x0a,
257 onigenc_single_byte_mbc_to_code,
258 onigenc_single_byte_code_to_mbclen,
259 onigenc_single_byte_code_to_mbc,
260 mbc_to_normalize,
261 is_mbc_ambiguous,
262 get_all_pair_ambig_codes,
263 onigenc_ess_tsett_get_all_comp_ambig_codes,
264 is_code_ctype,
265 onigenc_not_support_get_ctype_code_range,
266 onigenc_single_byte_left_adjust_char_head,
267 onigenc_always_true_is_allowed_reverse_match
268 };
269
