PCRE – Perl-compatible regular expressions
Synopsis
#include <pcre.h>
int pcre_fullinfo(const pcre *code, const pcre_extra *extra,
int what, void *where);
int pcre16_fullinfo(const pcre16 *code, const pcre16_extra *extra,
int what, void *where);
int pcre32_fullinfo(const pcre32 *code, const pcre32_extra *extra,
int what, void *where);
Description
This function returns information about a compiled pattern. Its arguments are:
code Compiled regular expression
extra Result of pcre[16|32]_study() or NULL
what What information is required
where Where to put the information The following information is available: The where argument must point to an integer variable, except for the following what values:
PCRE_INFO_DEFAULT_TABLES const uint8_t *
PCRE_INFO_FIRSTCHARACTER uint32_t
PCRE_INFO_FIRSTTABLE const uint8_t *
PCRE_INFO_JITSIZE size_t
PCRE_INFO_MATCHLIMIT uint32_t
PCRE_INFO_NAMETABLE PCRE_SPTR16 (16-bit library)
PCRE_INFO_NAMETABLE PCRE_SPTR32 (32-bit library)
PCRE_INFO_NAMETABLE const unsigned char * (8-bit library)
PCRE_INFO_OPTIONS unsigned long int
PCRE_INFO_SIZE size_t
PCRE_INFO_STUDYSIZE size_t
PCRE_INFO_RECURSIONLIMIT uint32_t
PCRE_INFO_REQUIREDCHAR uint32_t The yield of the function is zero on success or:
PCRE_ERROR_NULL the argument code was NULL
the argument where was NULL
PCRE_ERROR_BADMAGIC the "magic number" was not found
PCRE_ERROR_BADOPTION the value of what was invalid
PCRE_ERROR_UNSET
