tokens.cpp

#include <iostream>
#include <string>
#include <vector>
#include <sstream>

#include "tokens.h"

namespace Math_Interpreter {

std::string Token::str() const {
    std::string result;

    switch (type) {
        case TokenType::NUMBER:
            result += "NUMBER:" + std::to_string(value);
            break;
        case TokenType::PLUS:
            result += "PLUS";
            break;
        case TokenType::MINUS:
            result += "MINUS";
            break;
        case TokenType::MULTIPLY:
            result += "MULTIPLY";
            break;
        case TokenType::DIVIDE:
            result += "DIVIDE";
            break;
        case TokenType::LPAREN:
            result += "LPAREN";
            break;
        case TokenType::RPAREN:
            result += "RPAREN";
            break;
        case TokenType::EOF_:
            result += "EOF";
            break;
    }

    return result;
}

Token::operator bool() const {
    if (type != TokenType::EOF_) {
        return true;
    } else {
        return false;
    }
}

Token::operator std::string() const {
    return str();
}

void print_tokens(const std::vector<Token>& tokens) {
    std::ostringstream oss;
    bool empty = true;

    oss << "[";

    for (const Token& token : tokens) {
        if (empty) {
            empty = false;
            oss << token.str();
        } else {
            oss << ", " << token.str();
        }
    }

    oss << "]";

    std::cout << oss.str() << '\n';
}

    
} // namespace Math_Interpreter