PCRE2 — Perl-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); |
This function scans a compiled regular expression and
calls the callback() function
for each callout within the pattern. The yield of the
function is zero for success and non-zero otherwise. The
arguments are:
codePoints to the compiled patterncallbackThe callback functioncallout_dataUser data that is passed to the callback
The callback() function is
passed a pointer to a data block containing the following
fields:
versionBlock version numberpattern_positionOffset to next item in patternnext_item_lengthLength of next item in patterncallout_numberNumber for numbered calloutscallout_string_offsetOffset to string within patterncallout_string_lengthLength of callout stringcallout_stringPoints to callout string or is NULL
The second argument is the callout data that was passed to
pcre2_callout_enumerate(). The
callback() function 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(3) page and a description of the POSIX API in the pcre2posix(3) page.
| COPYRIGHT |
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This manual page is taken from the PCRE library, which is distributed under the BSD license. |