2015-01-23 17:51:47 +01:00
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<title>pcre2_serialize_encode specification</title>
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<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
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<h1>pcre2_serialize_encode 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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2015-09-12 20:12:01 +02:00
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<b>int32_t pcre2_serialize_encode(const pcre2_code **<i>codes</i>,</b>
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<b> int32_t <i>number_of_codes</i>, uint8_t **<i>serialized_bytes</i>,</b>
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<b> PCRE2_SIZE *<i>serialized_size</i>, 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 encodes a list of compiled patterns into a byte stream that can
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2018-08-13 13:57:09 +02:00
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be saved on disc or elsewhere. Note that this is not an abstract format like
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2018-06-27 19:20:58 +02:00
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Java or .NET. Conversion of the byte stream back into usable compiled patterns
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can only happen on a host that is running the same version of PCRE2, with the
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same code unit width, and the host must also have the same endianness, pointer
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width and PCRE2_SIZE type. The arguments for <b>pcre2_serialize_encode()</b>
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are:
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<pre>
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<i>codes</i> pointer to a vector containing the list
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<i>number_of_codes</i> number of slots in the vector
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<i>serialized_bytes</i> set to point to the serialized byte stream
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<i>serialized_size</i> set to the number of bytes in the 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 context argument is used to obtain memory for the byte stream. When the
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serialized data is no longer needed, it must be freed by calling
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<b>pcre2_serialize_free()</b>. The yield of the function is the number of
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serialized patterns, or one of 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 one of the patterns
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PCRE2_ERROR_MEMORY memory allocation failed
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PCRE2_ERROR_MIXEDTABLES the patterns do not all use the same tables
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PCRE2_ERROR_NULL an argument other than <i>gcontext</i> is NULL
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</pre>
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PCRE2_ERROR_BADMAGIC means either that a pattern's code has been corrupted, or
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that a slot in the vector does not point to a compiled pattern.
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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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2018-06-27 19:20:58 +02:00
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page and a description of the serialization functions in the
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<a href="pcre2serialize.html"><b>pcre2serialize</b></a>
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2015-01-23 17:51:47 +01:00
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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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