pcre2_serialize_decode(3) — Linux manual page
PCRE2_SE...E_DECODE(3) Library Functions Manual PCRE2_SE...E_DECODE(3)
NAME
PCRE2 - Perl-compatible regular expressions (revised API)
SYNOPSIS
#include <pcre2.h>
int32_t pcre2_serialize_decode(pcre2_code **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() 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.
COLOPHON
This page is part of the PCRE (Perl Compatible Regular
Expressions) project. Information about the project can be found
at ⟨http://www.pcre.org/⟩. If you have a bug report for this
manual page, see
⟨http://bugs.exim.org/enter_bug.cgi?product=PCRE⟩. This page was
obtained from the tarball fetched from
⟨https://github.com/PhilipHazel/pcre2.git⟩ on 2024-06-14. If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org