//
// Created by lenfrex on 2023/5/5.
//

#ifndef LEXER_CPP_CHECKER_H
#define LEXER_CPP_CHECKER_H

#include "stack"
#include "grammar/Grammar.h"

class Checker {
private:
    Grammar grammar;

    static std::string getStackContent(std::stack<char> source);

public:
    explicit Checker(Grammar grammar);

    bool identifyString(std::string input);

    static bool canDeducedEmpty(const std::set<std::string> &productions);
};


#endif //LEXER_CPP_CHECKER_H