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// Copyright (c) 2019 Egor Tensin <Egor.Tensin@gmail.com>
// This file is part of the "math-server" project.
// For details, see https://github.com/egor-tensin/math-server.
// Distributed under the MIT License.
#pragma once
#include <ostream>
#include <string>
#include <type_traits>
#include <unordered_set>
namespace math::server::lexer::token {
enum class Type {
WHITESPACE,
PLUS,
MINUS,
ASTERISK,
SLASH,
CARET,
LEFT_PAREN,
RIGHT_PAREN,
NUMBER,
};
using TypeInt = std::underlying_type<Type>::type;
using TypeSet = std::unordered_set<Type>;
TypeInt type_to_int(Type);
std::string type_to_int_string(Type);
bool is_const_token(Type);
const TypeSet& const_tokens();
bool token_has_value(Type);
std::string type_to_string(Type);
Type type_from_string(const std::string&);
std::ostream& operator<<(std::ostream&, const Type&);
}
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