pcre2_substring_number_from_name - compatible regular expressions (revised API)
#include <pcre2.h> int pcre2_substring_number_from_name(const pcre2_code *code, PCRE2_SPTR name);
Library Functions Manual                   PCRE2_SUBSTRING_NUMBER_FROM_NAME(3)
NAME
       PCRE2 - Perl-compatible regular expressions (revised API)
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 captur-
       ing parenthesis in a compiled pattern, provided that  it  is  a  unique
       name. The function 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 if it is not found. When duplicate
       names  are  allowed (PCRE2_DUPNAMES is set), if the name is not unique,
       PCRE2_ERROR_NOUNIQUESUBSTRING is returned. You can obtain the  list  of
       numbers with the same name 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.
ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:
       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | library/pcre2    |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+
NOTES
       Source code for open source software components in Oracle  Solaris  can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.
       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source     was     downloaded     from       https://github.com/Philip-
       Hazel/pcre2/releases/download/pcre2-10.39/pcre2-10.39.tar.gz.
       Further information about this software can be found on the open source
       community website at http://pcre.org/.
PCRE2 10.00                     21 October 2014
                                           PCRE2_SUBSTRING_NUMBER_FROM_NAME(3)