The best required inner literal of a pattern (the memmem candidate). len == 0 means the pattern declined: an alternation, an optional (?/*/{0,n}), a lookaround or an anchor at the level walked, or simply no literal run — anything that would make a required literal unsound. More...

#include <inner_literal.hpp>

Public Member Functions
constexpr bool	found () const

Public Attributes
std::array< std::uint8_t, 16 >	bytes {}

std::uint8_t	len {0}

std::uint32_t	score {0}
	Selectivity: higher = rarer/longer = fewer memmem candidates.

std::int32_t	prefix_child_count {-1}

Detailed Description

The best required inner literal of a pattern (the memmem candidate). len == 0 means the pattern declined: an alternation, an optional (?/*/{0,n}), a lookaround or an anchor at the level walked, or simply no literal run — anything that would make a required literal unsound.

Definition at line 27 of file inner_literal.hpp.

Member Function Documentation

◆ found()

constexpr bool real::detail::inner_literal::found ( ) const

inlineconstexpr

Definition at line 37 of file inner_literal.hpp.

Member Data Documentation

◆ bytes

std::array<std::uint8_t, 16> real::detail::inner_literal::bytes {}

Definition at line 29 of file inner_literal.hpp.

◆ len

std::uint8_t real::detail::inner_literal::len {0}

Definition at line 30 of file inner_literal.hpp.

◆ prefix_child_count

std::int32_t real::detail::inner_literal::prefix_child_count {-1}

Top-level concat children BEFORE the literal — the sub-pattern IL.1 reverse-matches from a candidate to find the match start. 0 = the literal is at the head (reverse is the identity: start = candidate). -1 = the literal is nested in a group/repeat, so no clean top-level prefix boundary exists (the prefix-reverse does not apply; the memmem candidate still does).

Definition at line 32 of file inner_literal.hpp.

◆ score

std::uint32_t real::detail::inner_literal::score {0}

Selectivity: higher = rarer/longer = fewer memmem candidates.

Definition at line 31 of file inner_literal.hpp.

The documentation for this struct was generated from the following file:

include/real/frontend/inner_literal.hpp

Public Member Functions

Public Attributes