pcre2_substring_length_byname(3) Library Functions Manual
NAME
PCRE2 - Perl-compatible regular expressions (revised API)
SYNOPSIS
#include <pcre2.h>
pcre2_substring_length_byname(3) *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
error 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_substring_length_byname(3)
pcre2 10.47 - Generated Fri Dec 12 07:37:43 CST 2025