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PCRE2_SUB...GTH_BYNAME(3)  Library Functions Manual  PCRE2_SUB...GTH_BYNAME(3)

NAME
       PCRE2 - Perl-compatible regular expressions (revised API)

SYNOPSIS

       #include	<pcre2.h>

       int pcre2_substring_length_byname(pcre2_match_data *match_data,
	 PCRE2_SPTR name, PCRE2_SIZE *length);

DESCRIPTION

       This  function returns the length of a matched substring, identified by
       name.  The arguments are:

	 match_data   The match	data block for the match
	 name	      The substring name
	 length	      Where to return the length, or NULL

       The third argument may be NULL if all you want to know  is  whether  or
       not a substring is set. The yield is zero on success, or	a negative er-
       ror code	otherwise.

       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.

PCRE2 10.47		       26 September 2025     PCRE2_SUB...GTH_BYNAME(3)

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