Mercurial > hg > nginx

annotate src/core/ngx_regex.c @ 2039:4d8140271204

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*) add ngx_palloc_aligned() to allocate explicitlty aligned memory *) allows non-aligned memory blocks for small allocations and for odd length strings on all platforms *) use ngx_palloc_aligned()
author Igor Sysoev <igor@sysoev.ru>
date Tue, 27 May 2008 09:37:40 +0000
parents 7d313324d874
children 2a92804f4109
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 381
diff changeset
1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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parents: 381
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2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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parents: 381
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4 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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5
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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6
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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7 #include <ngx_config.h>
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents:
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8 #include <ngx_core.h>
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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9
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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10
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b1648294f693 nginx-0.1.26-RELEASE import
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11 static void * ngx_libc_cdecl ngx_regex_malloc(size_t size);
b1648294f693 nginx-0.1.26-RELEASE import
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12 static void ngx_libc_cdecl ngx_regex_free(void *p);
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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13
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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14
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
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15 static ngx_pool_t *ngx_pcre_pool;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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16
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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17
503
b1648294f693 nginx-0.1.26-RELEASE import
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18 void
b1648294f693 nginx-0.1.26-RELEASE import
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19 ngx_regex_init(void)
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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20 {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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21 pcre_malloc = ngx_regex_malloc;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
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22 pcre_free = ngx_regex_free;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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23 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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24
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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25
503
b1648294f693 nginx-0.1.26-RELEASE import
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26 ngx_regex_t *
b1648294f693 nginx-0.1.26-RELEASE import
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27 ngx_regex_compile(ngx_str_t *pattern, ngx_int_t options, ngx_pool_t *pool,
b1648294f693 nginx-0.1.26-RELEASE import
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28 ngx_str_t *err)
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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29 {
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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30 int erroff;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
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31 const char *errstr;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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32 ngx_regex_t *re;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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33 #if (NGX_THREADS)
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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34 ngx_core_tls_t *tls;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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35
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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36 #if (NGX_SUPPRESS_WARN)
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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37 tls = NULL;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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38 #endif
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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39
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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parents: 294
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40 if (ngx_threaded) {
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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41 tls = ngx_thread_get_tls(ngx_core_tls_key);
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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42 tls->pool = pool;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
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43 } else {
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
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44 ngx_pcre_pool = pool;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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45 }
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
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46
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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diff changeset
47 #else
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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48
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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49 ngx_pcre_pool = pool;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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50
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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51 #endif
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
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52
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
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53 re = pcre_compile((const char *) pattern->data, (int) options,
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 216
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54 &errstr, &erroff, NULL);
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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55
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
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56 if (re == NULL) {
208
0b67be7d4489 nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
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57 if ((size_t) erroff == pattern->len) {
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
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58 ngx_snprintf(err->data, err->len - 1,
479
c52408583801 nginx-0.1.14-RELEASE import
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59 "pcre_compile() failed: %s in \"%s\"%Z",
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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60 errstr, pattern->data);
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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61 } else {
461
a88a3e4e158f nginx-0.1.5-RELEASE import
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62 ngx_snprintf(err->data, err->len - 1,
479
c52408583801 nginx-0.1.14-RELEASE import
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parents: 461
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63 "pcre_compile() failed: %s in \"%s\" at \"%s\"%Z",
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents:
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64 errstr, pattern->data, pattern->data + erroff);
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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65 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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66 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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67
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
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68 /* ensure that there is no current pool */
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
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69
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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70 #if (NGX_THREADS)
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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parents: 294
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71 if (ngx_threaded) {
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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72 tls->pool = NULL;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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73 } else {
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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74 ngx_pcre_pool = NULL;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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parents: 294
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75 }
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
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76 #else
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
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77 ngx_pcre_pool = NULL;
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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78 #endif
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
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79
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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80 return re;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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81 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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82
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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83
503
b1648294f693 nginx-0.1.26-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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84 ngx_int_t
b1648294f693 nginx-0.1.26-RELEASE import
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85 ngx_regex_capture_count(ngx_regex_t *re)
481
fd661d14a7fa nginx-0.1.15-RELEASE import
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86 {
fd661d14a7fa nginx-0.1.15-RELEASE import
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87 int rc, n;
fd661d14a7fa nginx-0.1.15-RELEASE import
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88
fd661d14a7fa nginx-0.1.15-RELEASE import
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89 n = 0;
fd661d14a7fa nginx-0.1.15-RELEASE import
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90
fd661d14a7fa nginx-0.1.15-RELEASE import
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91 rc = pcre_fullinfo(re, NULL, PCRE_INFO_CAPTURECOUNT, &n);
fd661d14a7fa nginx-0.1.15-RELEASE import
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92
501
d4ea69372b94 nginx-0.1.25-RELEASE import
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93 if (rc < 0) {
d4ea69372b94 nginx-0.1.25-RELEASE import
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94 return (ngx_int_t) rc;
d4ea69372b94 nginx-0.1.25-RELEASE import
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95 }
d4ea69372b94 nginx-0.1.25-RELEASE import
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96
d4ea69372b94 nginx-0.1.25-RELEASE import
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97 return (ngx_int_t) n;
481
fd661d14a7fa nginx-0.1.15-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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98 }
fd661d14a7fa nginx-0.1.15-RELEASE import
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99
fd661d14a7fa nginx-0.1.15-RELEASE import
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100
503
b1648294f693 nginx-0.1.26-RELEASE import
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101 ngx_int_t
b1648294f693 nginx-0.1.26-RELEASE import
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diff changeset
102 ngx_regex_exec(ngx_regex_t *re, ngx_str_t *s, int *captures, ngx_int_t size)
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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103 {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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104 int rc;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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105
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
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106 rc = pcre_exec(re, NULL, (const char *) s->data, s->len, 0, 0,
481
fd661d14a7fa nginx-0.1.15-RELEASE import
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107 captures, size);
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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108
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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109 if (rc == -1) {
481
fd661d14a7fa nginx-0.1.15-RELEASE import
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110 return NGX_REGEX_NO_MATCHED;
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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111 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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112
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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113 return rc;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents:
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114 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
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115
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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116
1784
7d313324d874 ngx_regex_exec_array()
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117 ngx_int_t
7d313324d874 ngx_regex_exec_array()
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118 ngx_regex_exec_array(ngx_array_t *a, ngx_str_t *s, ngx_log_t *log)
7d313324d874 ngx_regex_exec_array()
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119 {
7d313324d874 ngx_regex_exec_array()
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120 ngx_int_t n;
7d313324d874 ngx_regex_exec_array()
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121 ngx_uint_t i;
7d313324d874 ngx_regex_exec_array()
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122 ngx_regex_elt_t *re;
7d313324d874 ngx_regex_exec_array()
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123
7d313324d874 ngx_regex_exec_array()
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124 re = a->elts;
7d313324d874 ngx_regex_exec_array()
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125
7d313324d874 ngx_regex_exec_array()
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126 for (i = 0; i < a->nelts; i++) {
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127
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128 n = ngx_regex_exec(re[i].regex, s, NULL, 0);
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129
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130 if (n == NGX_REGEX_NO_MATCHED) {
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131 continue;
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132 }
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133
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134 if (n < 0) {
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135 ngx_log_error(NGX_LOG_ALERT, log, 0,
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136 ngx_regex_exec_n " failed: %d on \"%V\" using \"%s\"",
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137 n, s, re[i].name);
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138 return NGX_ERROR;
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139 }
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140
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141 /* match */
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142
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143 return NGX_OK;
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144 }
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145
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146 return NGX_DECLINED;
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147 }
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148
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149
503
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150 static void * ngx_libc_cdecl
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151 ngx_regex_malloc(size_t size)
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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152 {
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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153 ngx_pool_t *pool;
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154 #if (NGX_THREADS)
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155 ngx_core_tls_t *tls;
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156
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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diff changeset
157 if (ngx_threaded) {
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158 tls = ngx_thread_get_tls(ngx_core_tls_key);
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159 pool = tls->pool;
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160 } else {
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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161 pool = ngx_pcre_pool;
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162 }
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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163 #else
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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164 pool = ngx_pcre_pool;
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165 #endif
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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diff changeset
166
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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diff changeset
167 if (pool) {
2039
4d8140271204 *) add ngx_palloc_aligned() to allocate explicitlty aligned memory
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diff changeset
168 return ngx_palloc_aligned(pool, size);
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
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parents: 290
diff changeset
169 }
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
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diff changeset
170
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
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diff changeset
171 return NULL;
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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172 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents:
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173
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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174
503
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diff changeset
175 static void ngx_libc_cdecl
b1648294f693 nginx-0.1.26-RELEASE import
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176 ngx_regex_free(void *p)
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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177 {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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178 return;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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179 }