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PCRE_GET_STRINGNUMBER(3) Library Functions Manual PCRE_GET_STRINGNUMBER(3)

NAME

PCRE - Perl-compatible regular expressions

SYNOPSIS

#include <pcre.h>
int pcre_get_stringnumber(const pcre *code, const char *name);
int pcre16_get_stringnumber(const pcre16 *code, PCRE_SPTR16 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. When duplicate names are allowed (PCRE_DUPNAMES is set), it is not defined which of the numbers is returned by pcre[16]_get_stringnumber(). You can obtain the complete list by calling pcre[16]_get_stringtable_entries().
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.