PCRE_GET_SUBSTRING(3)PCRE_GET_SUBSTRING(3)NAME
PCRE - Perl-compatible regular expressions
SYNOPSIS
#include <pcre.h>
int pcre_get_substring(const char *subject, int *ovector,
int stringcount, int stringnumber,
const char **stringptr);
int pcre16_get_substring(PCRE_SPTR16 subject, int *ovector,
int stringcount, int stringnumber,
PCRE_SPTR16 *stringptr);
DESCRIPTION
This is a convenience function for extracting a captured substring. The
arguments are:
subject Subject that has been successfully matched
ovector Offset vector that pcre[16]_exec() used
stringcount Value returned by pcre[16]_exec()
stringnumber Number of the required substring
stringptr Where to put the string pointer
The memory in which the substring is placed is obtained by calling
pcre[16]_malloc(). The convenience function pcre[16]_free_substring()
can be used to free it when it is no longer needed. The yield of the
function is the length of the substring, PCRE_ERROR_NOMEMORY if suffi‐
cient memory could not be obtained, or PCRE_ERROR_NOSUBSTRING if the
string number is invalid.
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.
PCRE 8.30 13 January 2012 PCRE_GET_SUBSTRING(3)
