xref: /PHP-7.3/ext/mbstring/oniguruma/src/iso8859_3.c (revision 1979c5d1)
1 /**********************************************************************
2   iso8859_3.c -  Oniguruma (regular expression library)
3 **********************************************************************/
4 /*-
5  * Copyright (c) 2002-2019  K.Kosako
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_3_TO_LOWER_CASE(c) EncISO_8859_3_ToLowerCaseTable[c]
33 #define ENC_IS_ISO_8859_3_CTYPE(code,ctype) \
34   ((EncISO_8859_3_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
35 
36 static const UChar EncISO_8859_3_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', '\261', '\242', '\243', '\244', '\245', '\266', '\247',
58   '\250', '\271', '\272', '\273', '\274', '\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', '\303', '\344', '\345', '\346', '\347',
62   '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
63   '\320', '\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_3_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, 0x34a2, 0x00a0, 0x00a0, 0x00a0, 0x0000, 0x34a2, 0x00a0,
93   0x00a0, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x01a0, 0x0000, 0x34a2,
94   0x00a0, 0x30e2, 0x10a0, 0x10a0, 0x00a0, 0x30e2, 0x30e2, 0x01a0,
95   0x00a0, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x11a0, 0x0000, 0x30e2,
96   0x34a2, 0x34a2, 0x34a2, 0x0000, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
97   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
98   0x0000, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x00a0,
99   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2,
100   0x30e2, 0x30e2, 0x30e2, 0x0000, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
101   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
102   0x0000, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0,
103   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0
104 };
105 
106 static int
mbc_case_fold(OnigCaseFoldType flag,const UChar ** pp,const UChar * end ARG_UNUSED,UChar * lower)107 mbc_case_fold(OnigCaseFoldType flag, const UChar** pp,
108               const UChar* end ARG_UNUSED, UChar* lower)
109 {
110   const UChar* p = *pp;
111 
112   if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
113     *lower++ = 's';
114     *lower   = 's';
115     (*pp)++;
116     return 2;
117   }
118 
119   *lower = ENC_ISO_8859_3_TO_LOWER_CASE(*p);
120   (*pp)++;
121   return 1;
122 }
123 
124 static int
is_code_ctype(OnigCodePoint code,unsigned int ctype)125 is_code_ctype(OnigCodePoint code, unsigned int ctype)
126 {
127   if (code < 256)
128     return ENC_IS_ISO_8859_3_CTYPE(code, ctype);
129   else
130     return FALSE;
131 }
132 
133 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
134  { 0xa1, 0xb1 },
135  { 0xa6, 0xb6 },
136  { 0xa9, 0xb9 },
137  { 0xaa, 0xba },
138  { 0xab, 0xbb },
139  { 0xac, 0xbc },
140  { 0xaf, 0xbf },
141 
142  { 0xc0, 0xe0 },
143  { 0xc1, 0xe1 },
144  { 0xc2, 0xe2 },
145  { 0xc4, 0xe4 },
146  { 0xc5, 0xe5 },
147  { 0xc6, 0xe6 },
148  { 0xc7, 0xe7 },
149  { 0xc8, 0xe8 },
150  { 0xc9, 0xe9 },
151  { 0xca, 0xea },
152  { 0xcb, 0xeb },
153  { 0xcc, 0xec },
154  { 0xcd, 0xed },
155  { 0xce, 0xee },
156  { 0xcf, 0xef },
157 
158  { 0xd1, 0xf1 },
159  { 0xd2, 0xf2 },
160  { 0xd3, 0xf3 },
161  { 0xd4, 0xf4 },
162  { 0xd5, 0xf5 },
163  { 0xd6, 0xf6 },
164  { 0xd8, 0xf8 },
165  { 0xd9, 0xf9 },
166  { 0xda, 0xfa },
167  { 0xdb, 0xfb },
168  { 0xdc, 0xfc },
169  { 0xdd, 0xfd },
170  { 0xde, 0xfe }
171 };
172 
173 
174 static int
apply_all_case_fold(OnigCaseFoldType flag,OnigApplyAllCaseFoldFunc f,void * arg)175 apply_all_case_fold(OnigCaseFoldType flag,
176                     OnigApplyAllCaseFoldFunc f, void* arg)
177 {
178   return onigenc_apply_all_case_fold_with_map(
179              sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
180              flag, f, arg);
181 }
182 
183 static int
get_case_fold_codes_by_str(OnigCaseFoldType flag,const OnigUChar * p,const OnigUChar * end,OnigCaseFoldCodeItem items[])184 get_case_fold_codes_by_str(OnigCaseFoldType flag,
185    const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[])
186 {
187   return onigenc_get_case_fold_codes_by_str_with_map(
188                  sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
189                  flag, p, end, items);
190 }
191 
192 OnigEncodingType OnigEncodingISO_8859_3 = {
193   onigenc_single_byte_mbc_enc_len,
194   "ISO-8859-3",  /* name */
195   1,             /* max enc length */
196   1,             /* min enc length */
197   onigenc_is_mbc_newline_0x0a,
198   onigenc_single_byte_mbc_to_code,
199   onigenc_single_byte_code_to_mbclen,
200   onigenc_single_byte_code_to_mbc,
201   mbc_case_fold,
202   apply_all_case_fold,
203   get_case_fold_codes_by_str,
204   onigenc_minimum_property_name_to_ctype,
205   is_code_ctype,
206   onigenc_not_support_get_ctype_code_range,
207   onigenc_single_byte_left_adjust_char_head,
208   onigenc_always_true_is_allowed_reverse_match,
209   NULL, /* init */
210   NULL, /* is_initialized */
211   onigenc_always_true_is_valid_mbc_string,
212   ENC_FLAG_ASCII_COMPATIBLE|ENC_FLAG_SKIP_OFFSET_1,
213   0, 0
214 };
215