Perl-совместимые регулярные выражения (Perl-compatible regular expressions)
Имя (Name)
PCRE - Perl-compatible regular expressions
Синопсис (Synopsis)
#include <pcre.h>
pcre_extra *pcre_study(const pcre *code, int options,
const char **errptr);
pcre16_extra *pcre16_study(const pcre16 *code, int options,
const char **errptr);
pcre32_extra *pcre32_study(const pcre32 *code, int options,
const char **errptr);
Описание (Description)
This function studies a compiled pattern, to see if additional
information can be extracted that might speed up matching. Its
arguments are:
code A compiled regular expression
options Options for pcre[16|32]_study()
errptr Where to put an error message
If the function succeeds, it returns a value that can be passed
to pcre[16|32]_exec() or pcre[16|32]_dfa_exec() via their extra
arguments.
If the function returns NULL, either it could not find any
additional information, or there was an error. You can tell the
difference by looking at the error value. It is NULL in first
case.
The only option is PCRE_STUDY_JIT_COMPILE. It requests just-in-
time compilation if possible. If PCRE has been compiled without
JIT support, this option is ignored. See the pcrejit page for
further details.
There is a complete description of the PCRE native API in the
pcreapi page and a description of the POSIX API in the pcreposix
page.
