pcre2_substring_number_from_name man page

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SYNOPSIS

#include <pcre2.h>

int pcre2_substring_number_from_name(const pcre2_code *code, PCRE2_SPTR 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 PCRE2_ERROR_NOSUBSTRING otherwise. When duplicate names are allowed (PCRE2_DUPNAMES is set), it is not defined which of the numbers is returned. You can obtain the complete list by calling pcre2_substring_nametable_scan().

There is a complete description of the PCRE2 native API in the pcre2api page and a description of the POSIX API in the pcre2posix page.

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