rust-rule-engine 1.20.1

A blazing-fast Rust rule engine with RETE algorithm, backward chaining inference, and GRL (Grule Rule Language) syntax. Features: forward/backward chaining, pattern matching, unification, O(1) rule indexing, TMS, expression evaluation, method calls, streaming with Redis state backend, watermarking, and custom functions. Production-ready for business rules, expert systems, real-time stream processing, and decision automation.
Documentation 
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//! Memory for RETE nodes

#[derive(Debug, Clone)]
pub struct AlphaMemory {
    pub matches: Vec<(String, String)>,
}

#[derive(Debug, Clone)]
pub struct BetaMemory {
    pub partial_matches: Vec<Vec<(String, String)>>,
}