PCRE(3)

NAME
PCRE - Perl-compatible regular expressions

SYNOPSIS

#include <pcre.h>

int pcre_get_stringnumber(const pcre *code,
const char *name);

DESCRIPTION

This convenience function finds the number of a named substring capturing parenthesis in a compiled pattern. Its arguments are:
  code Compiled regular expression
  name Name whose number is required The yield of the function is the number of the parenthesis if the name is found, or PCRE_ERROR_NOSUBSTRING otherwise. There is a complete description of the PCRE API in the pcreapi page.