PCRE2 — Perl-compatible regular expressions (revised API)
#include <pcre2.h>
int
pcre2_set_compile_recursion_guard( |
pcre2_compile_context *ccontext, |
int (*guard_function)(uint32_t,
void *), |
|
void
*user_data); |
This function defines, within a compile context, a
function that is called whenever pcre2_compile() starts to compile a
parenthesized part of a pattern. The first argument to the
function gives the current depth of parenthesis nesting, and
the second is user data that is supplied when the function is
set up. The callout function should return zero if all is
well, or non-zero to force an error. This feature is provided
so that applications can check the available system stack
space, in order to avoid running out. The result of
pcre2_set_compile_recursion_guard() is
always zero.
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. |