2015-01-23 11:51:47 -05:00
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<title>pcre2_serialize_decode specification</title>
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<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
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<h1>pcre2_serialize_decode 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>int32_t pcre2_serialize_decode(pcre2_code **<i>codes</i>,</b>
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2015-09-12 14:12:01 -04:00
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<b> int32_t <i>number_of_codes</i>, const uint8_t *<i>bytes</i>,</b>
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2015-01-23 11:51:47 -05:00
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<b> pcre2_general_context *<i>gcontext</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 decodes a serialized set of compiled patterns back into a list of
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individual patterns. Its arguments are:
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<pre>
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<i>codes</i> pointer to a vector in which to build the list
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<i>number_of_codes</i> number of slots in the vector
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<i>bytes</i> the serialized byte stream
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<i>gcontext</i> pointer to a general context or NULL
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</pre>
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The <i>bytes</i> argument must point to a block of data that was originally
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created by <b>pcre2_serialize_encode()</b>, though it may have been saved on
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disc or elsewhere in the meantime. If there are more codes in the serialized
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data than slots in the list, only those compiled patterns that will fit are
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decoded. The yield of the function is the number of decoded patterns, or one of
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the following negative error codes:
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<pre>
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PCRE2_ERROR_BADDATA <i>number_of_codes</i> is zero or less
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PCRE2_ERROR_BADMAGIC mismatch of id bytes in <i>bytes</i>
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PCRE2_ERROR_BADMODE mismatch of variable unit size or PCRE version
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PCRE2_ERROR_MEMORY memory allocation failed
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PCRE2_ERROR_NULL <i>codes</i> or <i>bytes</i> is NULL
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</pre>
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PCRE2_ERROR_BADMAGIC may mean that the data is corrupt, or that it was compiled
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on a system with different endianness.
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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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