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1 | /**********************************************************************\r | |
2 | reggnu.c - Oniguruma (regular expression library)\r | |
3 | **********************************************************************/\r | |
4 | /*-\r | |
5 | * Copyright (c) 2002-2019 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>\r | |
6 | * All rights reserved.\r | |
7 | *\r | |
8 | * Redistribution and use in source and binary forms, with or without\r | |
9 | * modification, are permitted provided that the following conditions\r | |
10 | * are met:\r | |
11 | * 1. Redistributions of source code must retain the above copyright\r | |
12 | * notice, this list of conditions and the following disclaimer.\r | |
13 | * 2. Redistributions in binary form must reproduce the above copyright\r | |
14 | * notice, this list of conditions and the following disclaimer in the\r | |
15 | * documentation and/or other materials provided with the distribution.\r | |
16 | *\r | |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND\r | |
18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r | |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r | |
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE\r | |
21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r | |
22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r | |
23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r | |
24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r | |
25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r | |
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r | |
27 | * SUCH DAMAGE.\r | |
28 | */\r | |
29 | \r | |
30 | #include "regint.h"\r | |
31 | #include "oniggnu.h"\r | |
32 | \r | |
33 | extern void\r | |
34 | re_free_registers(OnigRegion* r)\r | |
35 | {\r | |
36 | /* 0: don't free self */\r | |
37 | onig_region_free(r, 0);\r | |
38 | }\r | |
39 | \r | |
40 | extern int\r | |
41 | re_adjust_startpos(regex_t* reg, const char* string, int size,\r | |
42 | int startpos, int range)\r | |
43 | {\r | |
44 | if (startpos > 0 && ONIGENC_MBC_MAXLEN(reg->enc) != 1 && startpos < size) {\r | |
45 | UChar *p;\r | |
46 | UChar *s = (UChar* )string + startpos;\r | |
47 | \r | |
48 | if (range > 0) {\r | |
49 | p = onigenc_get_right_adjust_char_head(reg->enc, (UChar* )string, s);\r | |
50 | }\r | |
51 | else {\r | |
52 | p = ONIGENC_LEFT_ADJUST_CHAR_HEAD(reg->enc, (UChar* )string, s);\r | |
53 | }\r | |
54 | return (int )(p - (UChar* )string);\r | |
55 | }\r | |
56 | \r | |
57 | return startpos;\r | |
58 | }\r | |
59 | \r | |
60 | extern int\r | |
61 | re_match(regex_t* reg, const char* str, int size, int pos,\r | |
62 | struct re_registers* regs)\r | |
63 | {\r | |
64 | return onig_match(reg, (UChar* )str, (UChar* )(str + size),\r | |
65 | (UChar* )(str + pos), regs, ONIG_OPTION_NONE);\r | |
66 | }\r | |
67 | \r | |
68 | extern int\r | |
69 | re_search(regex_t* bufp, const char* string, int size, int startpos, int range,\r | |
70 | struct re_registers* regs)\r | |
71 | {\r | |
72 | return onig_search(bufp, (UChar* )string, (UChar* )(string + size),\r | |
73 | (UChar* )(string + startpos),\r | |
74 | (UChar* )(string + startpos + range),\r | |
75 | regs, ONIG_OPTION_NONE);\r | |
76 | }\r | |
77 | \r | |
78 | extern int\r | |
79 | re_compile_pattern(const char* pattern, int size, regex_t* reg, char* ebuf)\r | |
80 | {\r | |
81 | int r;\r | |
82 | OnigErrorInfo einfo;\r | |
83 | \r | |
84 | r = onig_compile(reg, (UChar* )pattern, (UChar* )(pattern + size), &einfo);\r | |
85 | if (r != ONIG_NORMAL) {\r | |
86 | if (IS_NOT_NULL(ebuf))\r | |
87 | (void )onig_error_code_to_str((UChar* )ebuf, r, &einfo);\r | |
88 | }\r | |
89 | \r | |
90 | return r;\r | |
91 | }\r | |
92 | \r | |
93 | extern void\r | |
94 | re_free_pattern(regex_t* reg)\r | |
95 | {\r | |
96 | onig_free(reg);\r | |
97 | }\r | |
98 | \r | |
99 | extern int\r | |
100 | re_alloc_pattern(regex_t** reg)\r | |
101 | {\r | |
102 | *reg = (regex_t* )xmalloc(sizeof(regex_t));\r | |
103 | if (IS_NULL(*reg)) return ONIGERR_MEMORY;\r | |
104 | \r | |
105 | return onig_reg_init(*reg, ONIG_OPTION_DEFAULT,\r | |
106 | ONIGENC_CASE_FOLD_DEFAULT,\r | |
107 | OnigEncDefaultCharEncoding,\r | |
108 | OnigDefaultSyntax);\r | |
109 | }\r | |
110 | \r | |
111 | extern void\r | |
112 | re_set_casetable(const char* table)\r | |
113 | {\r | |
114 | onigenc_set_default_caseconv_table((UChar* )table);\r | |
115 | }\r | |
116 | \r | |
117 | extern void\r | |
118 | re_mbcinit(int mb_code)\r | |
119 | {\r | |
120 | OnigEncoding enc;\r | |
121 | \r | |
122 | switch (mb_code) {\r | |
123 | case RE_MBCTYPE_ASCII:\r | |
124 | enc = ONIG_ENCODING_ASCII;\r | |
125 | break;\r | |
126 | }\r | |
127 | \r | |
128 | onig_initialize(&enc, 1);\r | |
129 | \r | |
130 | onigenc_set_default_encoding(enc);\r | |
131 | }\r |