#include "operators.hpp"

#include <string>
#include <iostream>

DEF_TERMINAL( MyTerminal , "asdfasdf" )

int main()
{
    //compile time parsing
    constexpr const_string< char > cstr = "2  + 54 * 2 + 83";
    constexpr addition a( cstr );
    static_assert( a.eval() == 193 , "");
    constexpr const_string< char > cstr2 = "asd fasdf";
    constexpr MyTerminal t( cstr2 );
    static_assert( !t.valid() , "" );

    //run time parsing, but I guess this is very inefficient
    std::string str;
    std::cin >> str;
    const_string< char > cstr3( &*str.begin() , &*str.end() );
    addition a_run_time( cstr3 );
    if( a_run_time.end() == str.size() )
        std::cout << a_run_time.eval() << std::endl;
    else
        std::cout << "parse error" << std::endl;
}