Module expr 

CRUDUI expression engine — formal lexer→parser→AST→evaluator (expressions.md §0–§8). The single truth is the shared 4-language fixture tests/fixtures/expr/cases.json; this engine matches it byte-for-byte (tokens, AST without position, evaluated value, and truthy).

No eval / no regex-split anywhere (GRAMMAR §10) — a strictly staged pipeline.

Re-exports

pub use ast::LiteralValue;

pub use ast::Node;

pub use ast::PathSegment;

pub use error::ParseError;

pub use evaluator::is_truthy;

pub use evaluator::Evaluator;

pub use expression::Expression;

pub use lexer::Lexer;

pub use parser::Parser;

pub use token::Literal;

pub use token::Token;

pub use token::TokenType;

Modules

ast

CRUDUI expression AST nodes (expressions.md §4, JS ConditionParser.ts parity).

condition_map

Condition-map resolver (expressions.md §8). A thin wrapper over the expression engine — NOT a separate parser.

error

Parse error for the CRUDUI expression engine.

evaluator

CRUDUI expression evaluator (expressions.md §5/§6/§7, JS PathResolver parity).

expression

Public facade for the CRUDUI expression engine: string → tokens → AST → value.

lexer

CRUDUI expression lexer (expressions.md §1, JS/PHP Lexer parity).

parser

CRUDUI expression parser: Vec<Token> → AST (expressions.md §3/§4, JS/PHP Parser parity).

token

CRUDUI expression tokens (expressions.md §1, JS types.ts TokenType parity).