pcre2_callout_enumerate - compatible regular expressions (revised API)
#include <pcre2.h> int pcre2_callout_enumerate(const pcre2_code *code, int (*callback)(pcre2_callout_enumerate_block *, void *), void *callout_data);
PCRE2_COMPILE(3) Library Functions Manual PCRE2_COMPILE(3)
NAME
PCRE2 - Perl-compatible regular expressions (revised API)
SYNOPSIS
#include <pcre2.h>
int pcre2_callout_enumerate(const pcre2_code *code,
int (*callback)(pcre2_callout_enumerate_block *, void *),
void *callout_data);
DESCRIPTION
This function scans a compiled regular expression and calls the call-
back() function for each callout within the pattern. The yield of the
function is zero for success and non-zero otherwise. The arguments are:
code Points to the compiled pattern
callback The callback function
callout_data User data that is passed to the callback
The callback() function is passed a pointer to a data block containing
the following fields (not necessarily in this order):
uint32_t version Block version number
uint32_t callout_number Number for numbered callouts
PCRE2_SIZE pattern_position Offset to next item in pattern
PCRE2_SIZE next_item_length Length of next item in pattern
PCRE2_SIZE callout_string_offset Offset to string within pattern
PCRE2_SIZE callout_string_length Length of callout string
PCRE2_SPTR callout_string Points to callout string or is NULL
The second argument passed to the callback() function is the callout
data that was passed to pcre2_callout_enumerate(). The callback() func-
tion must return zero for success. Any other value causes the pattern
scan to stop, with the value being passed back as the result of
pcre2_callout_enumerate().
There is a complete description of the PCRE2 native API in the pcre2api
page and a description of the POSIX API in the pcre2posix page.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | library/pcre2 |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://github.com/Philip-
Hazel/pcre2/releases/download/pcre2-10.39/pcre2-10.39.tar.gz.
Further information about this software can be found on the open source
community website at http://pcre.org/.
PCRE2 10.30 23 March 2017 PCRE2_COMPILE(3)