1PCRE2_SUBSTRING_LENGTH_BYNUMLBiEbRr(a3r)y FunctionsPMCaRnEu2a_lSUBSTRING_LENGTH_BYNUMBER(3)
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NAME

6       PCRE2 - Perl-compatible regular expressions (revised API)
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SYNOPSIS

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10       #include <pcre2.h>
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12       int pcre2_substring_length_bynumber(pcre2_match_data *match_data,
13         uint32_t number, PCRE2_SIZE *length);
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DESCRIPTION

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17       This  function returns the length of a matched substring, identified by
18       number.  The arguments are:
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20         match_data   The match data block for the match
21         number       The substring number
22         length       Where to return the length, or NULL
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24       The third argument may be NULL if all you want to know  is  whether  or
25       not  a  substring  is  set. The yield is zero on success, or a negative
26       error code otherwise. After a partial match, only substring 0 is avail‐
27       able.
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29       There is a complete description of the PCRE2 native API in the pcre2api
30       page and a description of the POSIX API in the pcre2posix page.
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34PCRE2 10.00                    22 December 20P1C4RE2_SUBSTRING_LENGTH_BYNUMBER(3)
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