real::detail::ast_node Struct Reference

One AST node. Active fields depend on kind (noted per field). More...

#include <ast.hpp>

Public Attributes
node_kind	kind {node_kind::empty}
	Which fields below are meaningful.
std::uint8_t	byte {}
	byte: the exact byte value.
anchor_kind	anchor {anchor_kind::caret}
	anchor: the assertion kind.
bool	negated {}
	klass: written as [^...] / \D \W \S.
bool	raw_byte {}
	any: \C (RE2's raw-byte escape) — always 1 byte, bypasses UTF-8 even outside bytes mode. Parser requires flags::bytes (see parse_escape).
bool	lazy {}
	repeat: prefer the shortest expansion.
bool	possessive {}
	repeat: no give-back (X*+/X++/X?+/X{n,m}+). group: atomic (?>...) — same "no give-back" meaning, reused.
look_dir	direction {look_dir::ahead}
	lookaround: ahead (?=/(?! or behind (?<=/(?<!.
std::int32_t	klass {-1}
	klass: index into ast::classes.
std::int32_t	min {}
	repeat: minimum count.
std::int32_t	max {-1}
	repeat: maximum count (-1 = unbounded).
std::int32_t	group {-1}
	group: capture number, -1 for (?:...).
std::int32_t	child {-1}
	First child (concat, repeat, alternation, group).
std::int32_t	next {-1}
	Next sibling in the parent's child list.
std::uint16_t	effective_flags {}
	Flag set in force where this node was parsed (see flags). Stamped from the scope stack; carried for scoped-flag semantics.

Detailed Description

One AST node. Active fields depend on kind (noted per field).

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

• include/real/frontend/ast.hpp