2014-10-25 16:16:46 +02:00
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<title>pcre2_match_data_create_from_pattern specification</title>
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</head>
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<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
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<h1>pcre2_match_data_create_from_pattern man page</h1>
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<p>
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Return to the <a href="index.html">PCRE2 index page</a>.
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</p>
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<p>
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This page is part of the PCRE2 HTML documentation. It was generated
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automatically from the original man page. If there is any nonsense in it,
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please consult the man page, in case the conversion went wrong.
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<br>
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<br><b>
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SYNOPSIS
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</b><br>
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<P>
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<b>#include <pcre2.h></b>
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</P>
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<P>
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2015-08-30 19:47:36 +02:00
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<b>pcre2_match_data *pcre2_match_data_create_from_pattern(</b>
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<b> const pcre2_code *<i>code</i>, pcre2_general_context *<i>gcontext</i>);</b>
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2014-10-25 16:16:46 +02:00
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</P>
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<br><b>
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DESCRIPTION
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</b><br>
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<P>
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2021-08-28 17:25:59 +02:00
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This function creates a new match data block for holding the result of a match.
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The first argument points to a compiled pattern. The number of capturing
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parentheses within the pattern is used to compute the number of pairs of
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offsets that are required in the match data block. These form the "output
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vector" (ovector) within the match data block, and are used to identify the
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matched string and any captured substrings when matching with
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<b>pcre2_match()</b>. If you are using <b>pcre2_dfa_match()</b>, which uses the
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outut vector in a different way, you should use <b>pcre2_match_data_create()</b>
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instead of this function.
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2014-10-25 16:16:46 +02:00
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</P>
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<P>
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The second argument points to a general context, for custom memory management,
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2014-11-28 14:23:40 +01:00
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or is NULL to use the same memory allocator as was used for the compiled
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pattern. The result of the function is NULL if the memory for the block could
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not be obtained.
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2014-10-25 16:16:46 +02:00
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</P>
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<P>
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There is a complete description of the PCRE2 native API in the
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<a href="pcre2api.html"><b>pcre2api</b></a>
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page and a description of the POSIX API in the
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<a href="pcre2posix.html"><b>pcre2posix</b></a>
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page.
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<p>
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Return to the <a href="index.html">PCRE2 index page</a>.
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</p>
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