1<html> 2<head> 3<title>pcre2_match_data_create_from_pattern specification</title> 4</head> 5<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB"> 6<h1>pcre2_match_data_create_from_pattern man page</h1> 7<p> 8Return to the <a href="index.html">PCRE2 index page</a>. 9</p> 10<p> 11This page is part of the PCRE2 HTML documentation. It was generated 12automatically from the original man page. If there is any nonsense in it, 13please consult the man page, in case the conversion went wrong. 14<br> 15<br><b> 16SYNOPSIS 17</b><br> 18<P> 19<b>#include <pcre2.h></b> 20</P> 21<P> 22<b>pcre2_match_data *pcre2_match_data_create_from_pattern(</b> 23<b> const pcre2_code *<i>code</i>, pcre2_general_context *<i>gcontext</i>);</b> 24</P> 25<br><b> 26DESCRIPTION 27</b><br> 28<P> 29This function creates a new match data block, which is used for holding the 30result of a match. The first argument points to a compiled pattern. The number 31of capturing parentheses within the pattern is used to compute the number of 32pairs of offsets that are required in the match data block. These form the 33"output vector" (ovector) within the match data block, and are used to identify 34the matched string and any captured substrings. 35</P> 36<P> 37The second argument points to a general context, for custom memory management, 38or is NULL to use the same memory allocator as was used for the compiled 39pattern. The result of the function is NULL if the memory for the block could 40not be obtained. 41</P> 42<P> 43There is a complete description of the PCRE2 native API in the 44<a href="pcre2api.html"><b>pcre2api</b></a> 45page and a description of the POSIX API in the 46<a href="pcre2posix.html"><b>pcre2posix</b></a> 47page. 48<p> 49Return to the <a href="index.html">PCRE2 index page</a>. 50</p> 51