EVOLUTION-MANAGER

Edit File: pcre2_substring_length_bynumber.html

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<title>pcre2_substring_length_bynumber specification</title>
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<h1>pcre2_substring_length_bynumber man page</h1>

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SYNOPSIS
 

#include &#60;pcre2.h&#62;


int pcre2_substring_length_bynumber(pcre2_match_data *match_data,
 uint32_t number, PCRE2_SIZE *length);

 
DESCRIPTION
 

This function returns the length of a matched substring, identified by number.
The arguments are:
<pre>
 match_data The match data block for the match
 number The substring number
 length Where to return the length, or NULL
</pre>
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. After a partial match, only substring 0 is available.


There is a complete description of the PCRE2 native API in the
<a href="pcre2api.html">pcre2api</a>
page and a description of the POSIX API in the
<a href="pcre2posix.html">pcre2posix</a>
page.

Return to the <a href="index.html">PCRE2 index page</a>.