PCRE2_SET_...RSION_GUARD(3) Library Functions Manual PCRE2_SET_...RSION_GUARD(3) 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 pat- tern. The first argument to the function gives the current depth of paren- thesis nesting, and the second is user data that is supplied when the func- tion 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 10.47 26 November 2014 PCRE2_SET_...RSION_GUARD(3)
NAME | SYNOPSIS | DESCRIPTION
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