1 .TH PCRE2_SERIALIZE_DECODE 3 "27 June 2018" "PCRE2 10.32"
3 PCRE2 - Perl-compatible regular expressions (revised API)
10 .B int32_t pcre2_serialize_decode(pcre2_code **\fIcodes\fP,
11 .B " int32_t \fInumber_of_codes\fP, const uint8_t *\fIbytes\fP,"
12 .B " pcre2_general_context *\fIgcontext\fP);"
18 This function decodes a serialized set of compiled patterns back into a list of
19 individual patterns. This is possible only on a host that is running the same
20 version of PCRE2, with the same code unit width, and the host must also have
21 the same endianness, pointer width and PCRE2_SIZE type. The arguments for
22 \fBpcre2_serialize_decode()\fP are:
24 \fIcodes\fP pointer to a vector in which to build the list
25 \fInumber_of_codes\fP number of slots in the vector
26 \fIbytes\fP the serialized byte stream
27 \fIgcontext\fP pointer to a general context or NULL
29 The \fIbytes\fP argument must point to a block of data that was originally
30 created by \fBpcre2_serialize_encode()\fP, though it may have been saved on
31 disc or elsewhere in the meantime. If there are more codes in the serialized
32 data than slots in the list, only those compiled patterns that will fit are
33 decoded. The yield of the function is the number of decoded patterns, or one of
34 the following negative error codes:
36 PCRE2_ERROR_BADDATA \fInumber_of_codes\fP is zero or less
37 PCRE2_ERROR_BADMAGIC mismatch of id bytes in \fIbytes\fP
38 PCRE2_ERROR_BADMODE mismatch of variable unit size or PCRE version
39 PCRE2_ERROR_MEMORY memory allocation failed
40 PCRE2_ERROR_NULL \fIcodes\fP or \fIbytes\fP is NULL
42 PCRE2_ERROR_BADMAGIC may mean that the data is corrupt, or that it was compiled
43 on a system with different endianness.
45 There is a complete description of the PCRE2 native API in the
49 page and a description of the serialization functions in the