1 /**********************************************************************
2 iso8859_7.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_7_TO_LOWER_CASE(c) EncISO_8859_7_ToLowerCaseTable[c]
33 #define ENC_IS_ISO_8859_7_CTYPE(code,ctype) \
34 ((EncISO_8859_7_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
35
36 static const UChar EncISO_8859_7_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 '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
59 '\260', '\261', '\262', '\263', '\264', '\265', '\334', '\267',
60 '\335', '\336', '\337', '\273', '\374', '\275', '\375', '\376',
61 '\300', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
62 '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
63 '\360', '\361', '\322', '\363', '\364', '\365', '\366', '\367',
64 '\370', '\371', '\372', '\373', '\334', '\335', '\336', '\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_7_CtypeTable[256] = {
72 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
73 0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,
74 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
75 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
76 0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
77 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
78 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,
79 0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
80 0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,
81 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
82 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
83 0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,
84 0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,
85 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
86 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
87 0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,
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, 0x01a0, 0x00a0, 0x0000, 0x0000, 0x00a0, 0x00a0,
93 0x00a0, 0x00a0, 0x0000, 0x01a0, 0x00a0, 0x01a0, 0x0000, 0x01a0,
94 0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x00a0, 0x00a0, 0x34a2, 0x01a0,
95 0x34a2, 0x34a2, 0x34a2, 0x01a0, 0x34a2, 0x10a0, 0x34a2, 0x34a2,
96 0x30e2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
97 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
98 0x34a2, 0x34a2, 0x0000, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
99 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
100 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 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, 0x0000
104 };
105
106 static int
mbc_case_fold(OnigCaseFoldType flag ARG_UNUSED,const UChar ** pp,const UChar * end ARG_UNUSED,UChar * lower)107 mbc_case_fold(OnigCaseFoldType flag ARG_UNUSED,
108 const UChar** pp, const UChar* end ARG_UNUSED, UChar* lower)
109 {
110 const UChar* p = *pp;
111
112 *lower = ENC_ISO_8859_7_TO_LOWER_CASE(*p);
113 (*pp)++;
114 return 1;
115 }
116
117 #if 0
118 static int
119 is_mbc_ambiguous(OnigCaseFoldType flag,
120 const UChar** pp, const UChar* end)
121 {
122 int v;
123 const UChar* p = *pp;
124
125 (*pp)++;
126 v = (EncISO_8859_7_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
127 if ((v | BIT_CTYPE_LOWER) != 0) {
128 if (*p == 0xc0 || *p == 0xe0)
129 return FALSE;
130 else
131 return TRUE;
132 }
133
134 return (v != 0 ? TRUE : FALSE);
135 }
136 #endif
137
138 static int
is_code_ctype(OnigCodePoint code,unsigned int ctype)139 is_code_ctype(OnigCodePoint code, unsigned int ctype)
140 {
141 if (code < 256)
142 return ENC_IS_ISO_8859_7_CTYPE(code, ctype);
143 else
144 return FALSE;
145 }
146
147 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
148 { 0xb6, 0xdc },
149 { 0xb8, 0xdd },
150 { 0xb9, 0xde },
151 { 0xba, 0xdf },
152 { 0xbc, 0xfc },
153 { 0xbe, 0xfd },
154 { 0xbf, 0xfe },
155
156 { 0xc1, 0xe1 },
157 { 0xc2, 0xe2 },
158 { 0xc3, 0xe3 },
159 { 0xc4, 0xe4 },
160 { 0xc5, 0xe5 },
161 { 0xc6, 0xe6 },
162 { 0xc7, 0xe7 },
163 { 0xc8, 0xe8 },
164 { 0xc9, 0xe9 },
165 { 0xca, 0xea },
166 { 0xcb, 0xeb },
167 { 0xcc, 0xec },
168 { 0xcd, 0xed },
169 { 0xce, 0xee },
170 { 0xcf, 0xef },
171
172 { 0xd0, 0xf0 },
173 { 0xd1, 0xf1 },
174 { 0xd2, 0xf2 },
175 { 0xd3, 0xf3 },
176 { 0xd4, 0xf4 },
177 { 0xd5, 0xf5 },
178 { 0xd6, 0xf6 },
179 { 0xd7, 0xf7 },
180 { 0xd8, 0xf8 },
181 { 0xd9, 0xf9 },
182 { 0xda, 0xfa },
183 { 0xdb, 0xfb }
184 };
185
186 static int
apply_all_case_fold(OnigCaseFoldType flag,OnigApplyAllCaseFoldFunc f,void * arg)187 apply_all_case_fold(OnigCaseFoldType flag,
188 OnigApplyAllCaseFoldFunc f, void* arg)
189 {
190 return onigenc_apply_all_case_fold_with_map(
191 sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
192 flag, f, arg);
193 }
194
195 static int
get_case_fold_codes_by_str(OnigCaseFoldType flag,const OnigUChar * p,const OnigUChar * end,OnigCaseFoldCodeItem items[])196 get_case_fold_codes_by_str(OnigCaseFoldType flag,
197 const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[])
198 {
199 return onigenc_get_case_fold_codes_by_str_with_map(
200 sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
201 flag, p, end, items);
202 }
203
204
205 OnigEncodingType OnigEncodingISO_8859_7 = {
206 onigenc_single_byte_mbc_enc_len,
207 "ISO-8859-7", /* name */
208 1, /* max enc length */
209 1, /* min enc length */
210 onigenc_is_mbc_newline_0x0a,
211 onigenc_single_byte_mbc_to_code,
212 onigenc_single_byte_code_to_mbclen,
213 onigenc_single_byte_code_to_mbc,
214 mbc_case_fold,
215 apply_all_case_fold,
216 get_case_fold_codes_by_str,
217 onigenc_minimum_property_name_to_ctype,
218 is_code_ctype,
219 onigenc_not_support_get_ctype_code_range,
220 onigenc_single_byte_left_adjust_char_head,
221 onigenc_always_true_is_allowed_reverse_match
222 };
223
