token.h

#ifndef TOKEN_H
#define TOKEN_H

#include <string>

enum class TokenType {
    // keywords
    KW_INT, KW_FLOAT, KW_BOOL, KW_STRING, KW_CHAR,
    KW_FUN, KW_DONE, KW_RETURN,
    KW_PRINT,
    KW_TRUE, KW_FALSE,

    // NEW:
    KW_WHILE, KW_FOR,

    // Else/if 
    KW_IF, KW_ELSE, KW_DO,


    // identifiers & literals
    IDENT, NUMBER, STRING_LIT, CHAR_LIT,

    // operators
    ASSIGN, PLUS, MINUS, MUL, DIV, MOD,
    EQ, NEQ, LT, GT, LE, GE,
    AND, OR, NOT,

    // punctuation
    LPAREN, RPAREN, COLON, SEMI, COMMA,

    END, INVALID
};

struct Token {
    TokenType type;
    std::string lexeme;
    int line;
};

std::string tokenTypeName(TokenType t);

#endif