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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"> |
| <h1>pcre2_serialize_decode man page</h1> |
| <p> |
| Return to the <a href="index.html">PCRE2 index page</a>. |
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| <p> |
| This page is part of the PCRE2 HTML documentation. It was generated |
| automatically from the original man page. If there is any nonsense in it, |
| please consult the man page, in case the conversion went wrong. |
| <br> |
| <br><b> |
| SYNOPSIS |
| </b><br> |
| <P> |
| <b>#include <pcre2.h></b> |
| </P> |
| <P> |
| <b>int32_t pcre2_serialize_decode(pcre2_code **<i>codes</i>,</b> |
| <b> int32_t <i>number_of_codes</i>, const uint8_t *<i>bytes</i>,</b> |
| <b> pcre2_general_context *<i>gcontext</i>);</b> |
| </P> |
| <br><b> |
| DESCRIPTION |
| </b><br> |
| <P> |
| This function decodes a serialized set of compiled patterns back into a list of |
| individual patterns. This is possible only on a host that is running the same |
| version of PCRE2, with the same code unit width, and the host must also have |
| the same endianness, pointer width and PCRE2_SIZE type. The arguments for |
| <b>pcre2_serialize_decode()</b> are: |
| <pre> |
| <i>codes</i> pointer to a vector in which to build the list |
| <i>number_of_codes</i> number of slots in the vector |
| <i>bytes</i> the serialized byte stream |
| <i>gcontext</i> pointer to a general context or NULL |
| </pre> |
| The <i>bytes</i> argument must point to a block of data that was originally |
| created by <b>pcre2_serialize_encode()</b>, though it may have been saved on |
| disc or elsewhere in the meantime. If there are more codes in the serialized |
| data than slots in the list, only those compiled patterns that will fit are |
| decoded. The yield of the function is the number of decoded patterns, or one of |
| the following negative error codes: |
| <pre> |
| PCRE2_ERROR_BADDATA <i>number_of_codes</i> is zero or less |
| PCRE2_ERROR_BADMAGIC mismatch of id bytes in <i>bytes</i> |
| PCRE2_ERROR_BADMODE mismatch of variable unit size or PCRE version |
| PCRE2_ERROR_MEMORY memory allocation failed |
| PCRE2_ERROR_NULL <i>codes</i> or <i>bytes</i> is NULL |
| </pre> |
| PCRE2_ERROR_BADMAGIC may mean that the data is corrupt, or that it was compiled |
| on a system with different endianness. |
| </P> |
| <P> |
| There is a complete description of the PCRE2 native API in the |
| <a href="pcre2api.html"><b>pcre2api</b></a> |
| page and a description of the serialization functions in the |
| <a href="pcre2serialize.html"><b>pcre2serialize</b></a> |
| page. |
| <p> |
| Return to the <a href="index.html">PCRE2 index page</a>. |
| </p> |