xref: /PHP-7.2/ext/mbstring/oniguruma/src/iso8859_5.c (revision 0ae2f95b)
1 /**********************************************************************
2   iso8859_5.c -  Oniguruma (regular expression library)
3 **********************************************************************/
4 /*-
5  * Copyright (c) 2002-2016  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_5_TO_LOWER_CASE(c) EncISO_8859_5_ToLowerCaseTable[c]
33 #define ENC_IS_ISO_8859_5_CTYPE(code,ctype) \
34   ((EncISO_8859_5_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
35 
36 static const UChar EncISO_8859_5_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', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
58   '\370', '\371', '\372', '\373', '\374', '\255', '\376', '\377',
59   '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
60   '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337',
61   '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
62   '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
63   '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
64   '\330', '\331', '\332', '\333', '\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_5_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, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
93   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x01a0, 0x34a2, 0x34a2,
94   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
95   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
96   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
97   0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
98   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
99   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
100   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
101   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
102   0x00a0, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
103   0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0, 0x30e2, 0x30e2
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_5_TO_LOWER_CASE(*p);
113   (*pp)++;
114   return 1;
115 }
116 
117 #if 0
118 static int
119 is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp, const UChar* end)
120 {
121   int v;
122   const UChar* p = *pp;
123 
124   (*pp)++;
125   v = (EncISO_8859_5_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
126   return (v != 0 ? TRUE : FALSE);
127 }
128 #endif
129 
130 static int
is_code_ctype(OnigCodePoint code,unsigned int ctype)131 is_code_ctype(OnigCodePoint code, unsigned int ctype)
132 {
133   if (code < 256)
134     return ENC_IS_ISO_8859_5_CTYPE(code, ctype);
135   else
136     return FALSE;
137 }
138 
139 static const OnigPairCaseFoldCodes CaseFoldMap[] = {
140  { 0xa1, 0xf1 },
141  { 0xa2, 0xf2 },
142  { 0xa3, 0xf3 },
143  { 0xa4, 0xf4 },
144  { 0xa5, 0xf5 },
145  { 0xa6, 0xf6 },
146  { 0xa7, 0xf7 },
147  { 0xa8, 0xf8 },
148  { 0xa9, 0xf9 },
149  { 0xaa, 0xfa },
150  { 0xab, 0xfb },
151  { 0xac, 0xfc },
152  { 0xae, 0xfe },
153  { 0xaf, 0xff },
154 
155  { 0xb0, 0xd0 },
156  { 0xb1, 0xd1 },
157  { 0xb2, 0xd2 },
158  { 0xb3, 0xd3 },
159  { 0xb4, 0xd4 },
160  { 0xb5, 0xd5 },
161  { 0xb6, 0xd6 },
162  { 0xb7, 0xd7 },
163  { 0xb8, 0xd8 },
164  { 0xb9, 0xd9 },
165  { 0xba, 0xda },
166  { 0xbb, 0xdb },
167  { 0xbc, 0xdc },
168  { 0xbd, 0xdd },
169  { 0xbe, 0xde },
170  { 0xbf, 0xdf },
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 
190 static int
apply_all_case_fold(OnigCaseFoldType flag,OnigApplyAllCaseFoldFunc f,void * arg)191 apply_all_case_fold(OnigCaseFoldType flag,
192 		    OnigApplyAllCaseFoldFunc f, void* arg)
193 {
194   return onigenc_apply_all_case_fold_with_map(
195              sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
196              flag, f, arg);
197 }
198 
199 static int
get_case_fold_codes_by_str(OnigCaseFoldType flag,const OnigUChar * p,const OnigUChar * end,OnigCaseFoldCodeItem items[])200 get_case_fold_codes_by_str(OnigCaseFoldType flag,
201 			   const OnigUChar* p, const OnigUChar* end,
202 			   OnigCaseFoldCodeItem items[])
203 {
204   return onigenc_get_case_fold_codes_by_str_with_map(
205 	     sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 0,
206 	     flag, p, end, items);
207 }
208 
209 OnigEncodingType OnigEncodingISO_8859_5 = {
210   onigenc_single_byte_mbc_enc_len,
211   "ISO-8859-5",  /* name */
212   1,             /* max enc length */
213   1,             /* min enc length */
214   onigenc_is_mbc_newline_0x0a,
215   onigenc_single_byte_mbc_to_code,
216   onigenc_single_byte_code_to_mbclen,
217   onigenc_single_byte_code_to_mbc,
218   mbc_case_fold,
219   apply_all_case_fold,
220   get_case_fold_codes_by_str,
221   onigenc_minimum_property_name_to_ctype,
222   is_code_ctype,
223   onigenc_not_support_get_ctype_code_range,
224   onigenc_single_byte_left_adjust_char_head,
225   onigenc_always_true_is_allowed_reverse_match,
226   NULL, /* init */
227   NULL, /* is_initialized */
228   onigenc_always_true_is_valid_mbc_string
229 };
230