cfg-predict 0.0.1

Library for manipulating context-free grammars.
Documentation 
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use std::collections::{BTreeMap, BTreeSet};

use cfg_symbol::Symbol;

/// The representation of FIRST and FOLLOW sets.
pub type PerSymbolSets = BTreeMap<Symbol, BTreeSet<Option<Symbol>>>;

pub trait PredictSets {
    fn predict_sets(&self) -> &PerSymbolSets;
}