pcre2_serialize_decode(3) Library Functions Manual pcre2_serialize_decode(3)
NAME
PCRE2 - Perl-compatible regular expressions (revised API)
SYNOPSIS
#include <pcre2.h>
pcre2_serialize_decode(3) **codes,
int32_t number_of_codes, const uint8_t *bytes,
pcre2_general_context *gcontext);
DESCRIPTION
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 pcre2_serialize_decode(3) are:
codes pointer to a vector in which to build the list
number_of_codes number of slots in the vector
bytes the serialized byte stream
gcontext pointer to a general context or NULL
The bytes argument must point to a block of data that was originally
created by pcre2_serialize_encode(), 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:
PCRE2_ERROR_BADDATA number_of_codes is zero or less
PCRE2_ERROR_BADMAGIC mismatch of id bytes in bytes
PCRE2_ERROR_BADMODE mismatch of variable unit size or PCRE version
PCRE2_ERROR_NOMEMORY memory allocation failed
PCRE2_ERROR_NULL codes or bytes is NULL
PCRE2_ERROR_BADMAGIC may mean that the data is corrupt, or that it was
compiled on a system with different endianness.
There is a complete description of the PCRE2 native API in the pcre2api
page and a description of the serialization functions in the
pcre2serialize page.
PCRE2 10.32 27 June 2018 pcre2_serialize_decode(3)
pcre2 10.42 - Generated Mon Jan 9 16:14:44 CST 2023