Mercurial > hg > nginx
view src/core/ngx_regex.c @ 9230:e14debe728b0 radix_with_skip
Closed the radix_with_skip branch.
The radix_with_skip branch is an archive of an experiment did in 2008,
and it is no longer relevant. It is now closed to avoid cluttering of
the branches list. If needed, closed branches still can be seen with
"hg branches --closed".
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Sat, 23 Mar 2024 04:30:45 +0300 |
parents | 2a92804f4109 |
children | be47fe127f8c |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> static void * ngx_libc_cdecl ngx_regex_malloc(size_t size); static void ngx_libc_cdecl 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; } ngx_int_t ngx_regex_exec_array(ngx_array_t *a, ngx_str_t *s, ngx_log_t *log) { ngx_int_t n; ngx_uint_t i; ngx_regex_elt_t *re; re = a->elts; for (i = 0; i < a->nelts; i++) { n = ngx_regex_exec(re[i].regex, s, NULL, 0); if (n == NGX_REGEX_NO_MATCHED) { continue; } if (n < 0) { ngx_log_error(NGX_LOG_ALERT, log, 0, ngx_regex_exec_n " failed: %d on \"%V\" using \"%s\"", n, s, re[i].name); return NGX_ERROR; } /* match */ return NGX_OK; } return NGX_DECLINED; } static void * ngx_libc_cdecl 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_libc_cdecl ngx_regex_free(void *p) { return; }