config.hpp File Reference

Resource limits guarding against pattern-driven resource exhaustion. More...

#include "real/version.hpp"
#include <cstddef>
#include <cstdint>

Include dependency graph for config.hpp:

Namespaces
namespace	real
	REAL's public API: real::regex, real::static_regex, real::flags and the match/iterator types built on them.
namespace	real::detail
	DFA construction internals: subset construction over a flattened NFA. Not a stable API.

Variables
constexpr std::size_t	real::detail::max_program_size {262144}
	Maximum number of NFA instructions in a compiled program — 256 Ki.
constexpr std::int32_t	real::detail::max_repeat_count {1000}
	Per-quantifier bounded-repeat cap, enforced at parse time.
constexpr std::int32_t	real::detail::max_group_count {32766}
	Maximum capture groups; bounds slot_count = 2 * (groups + 1).
constexpr std::int32_t	real::detail::max_nesting_depth {200}
	Maximum parser recursion depth; prevents stack overflow on deep nesting.
constexpr std::int32_t	real::detail::max_lookaround_length {255}
	Maximum bytes a bounded lookaround sub-pattern may consume (its L_max); bounding it keeps per-position evaluation linear.
constexpr std::size_t	real::detail::max_dfa_states {65536}
	Maximum DFA states (opt-in real::dfa).

Detailed Description

Resource limits guarding against pattern-driven resource exhaustion.

Bounded-repeat unrolling, parser nesting, capture-group count, program size, lookaround width and DFA state count are each capped. Values are conservative for portability while still admitting practical patterns (e.g. a{1000}).