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48 lines
1.5 KiB
48 lines
1.5 KiB
<html>
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<head>
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<title>pcre2_substring_length_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_length_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_length_bynumber(pcre2_match_data *<i>match_data</i>,</b>
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<b> uint32_t <i>number</i>, PCRE2_SIZE *<i>length</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 function returns the length of a matched substring, identified by number.
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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> The substring number
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<i>length</i> Where to return the length, or NULL
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</pre>
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The third argument may be NULL if all you want to know is whether or not a
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substring is set. The yield is zero on success, or a negative error code
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otherwise. After a partial match, only substring 0 is available.
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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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