1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/*
* Copyright (C) Igor Sysoev
*/
#include <ngx_config.h>
#include <ngx_core.h>
static void *ngx_regex_malloc(size_t size);
static void ngx_regex_free(void *p);
static ngx_pool_t *ngx_pcre_pool;
void ngx_regex_init(void)
{
pcre_malloc = ngx_regex_malloc;
pcre_free = ngx_regex_free;
}
ngx_regex_t *ngx_regex_compile(ngx_str_t *pattern, ngx_int_t options,
ngx_pool_t *pool, ngx_str_t *err)
{
int erroff;
const char *errstr;
ngx_regex_t *re;
#if (NGX_THREADS)
ngx_core_tls_t *tls;
#if (NGX_SUPPRESS_WARN)
tls = NULL;
#endif
if (ngx_threaded) {
tls = ngx_thread_get_tls(ngx_core_tls_key);
tls->pool = pool;
} else {
ngx_pcre_pool = pool;
}
#else
ngx_pcre_pool = pool;
#endif
re = pcre_compile((const char *) pattern->data, (int) options,
&errstr, &erroff, NULL);
if (re == NULL) {
if ((size_t) erroff == pattern->len) {
ngx_snprintf(err->data, err->len - 1,
"pcre_compile() failed: %s in \"%s\"%Z",
errstr, pattern->data);
} else {
ngx_snprintf(err->data, err->len - 1,
"pcre_compile() failed: %s in \"%s\" at \"%s\"%Z",
errstr, pattern->data, pattern->data + erroff);
}
}
/* ensure that there is no current pool */
#if (NGX_THREADS)
if (ngx_threaded) {
tls->pool = NULL;
} else {
ngx_pcre_pool = NULL;
}
#else
ngx_pcre_pool = NULL;
#endif
return re;
}
ngx_int_t ngx_regex_capture_count(ngx_regex_t *re)
{
int rc, n;
n = 0;
rc = pcre_fullinfo(re, NULL, PCRE_INFO_CAPTURECOUNT, &n);
if (rc < 0) {
return (ngx_int_t) rc;
}
return (ngx_int_t) n;
}
ngx_int_t ngx_regex_exec(ngx_regex_t *re, ngx_str_t *s,
int *captures, ngx_int_t size)
{
int rc;
rc = pcre_exec(re, NULL, (const char *) s->data, s->len, 0, 0,
captures, size);
if (rc == -1) {
return NGX_REGEX_NO_MATCHED;
}
return rc;
}
static void *ngx_regex_malloc(size_t size)
{
ngx_pool_t *pool;
#if (NGX_THREADS)
ngx_core_tls_t *tls;
if (ngx_threaded) {
tls = ngx_thread_get_tls(ngx_core_tls_key);
pool = tls->pool;
} else {
pool = ngx_pcre_pool;
}
#else
pool = ngx_pcre_pool;
#endif
if (pool) {
return ngx_palloc(pool, size);
}
return NULL;
}
static void ngx_regex_free(void *p)
{
return;
}
|
