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57 lines
1.8 KiB
57 lines
1.8 KiB
<html>
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<head>
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<title>pcre2_substring_copy_bynumber 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_substring_copy_bynumber 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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<b>int pcre2_substring_copy_bynumber(pcre2_match_data *<i>match_data</i>,</b>
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<b> uint32_t <i>number</i>, PCRE2_UCHAR *<i>buffer</i>,</b>
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<b> PCRE2_SIZE *<i>bufflen</i>);</b>
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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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This is a convenience function for extracting a captured substring into a given
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buffer. The arguments are:
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<pre>
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<i>match_data</i> The match data block for the match
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<i>number</i> Number of the required substring
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<i>buffer</i> Buffer to receive the string
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<i>bufflen</i> Length of buffer
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</pre>
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The <i>bufflen</i> variable is updated with the length of the extracted string,
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excluding the terminating zero. The yield of the function is zero for success
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or one of the following error numbers:
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<pre>
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PCRE2_ERROR_NOSUBSTRING there are no groups of that number
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PCRE2_ERROR_UNAVAILBLE the ovector was too small for that group
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PCRE2_ERROR_UNSET the group did not participate in the match
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PCRE2_ERROR_NOMEMORY the buffer is too small
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</PRE>
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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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