NAME

       PCRE2 - Perl-compatible regular expressions (revised API)

SYNOPSIS

       #include <pcre2.h>

       int pcre2_set_compile_recursion_guard(pcre2_compile_context *ccontext,
         int (*guard_function)(uint32_t, void *), void *user_data);

DESCRIPTION

       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 page and a description of the
       POSIX API in the pcre2posix page.

PCRE2 10.45                                     26 November 2014            PCRE2_SET_COMPILE_RECURSION_GUARD(3)