enum TokenKind
{
    EOI,
    BAD_TOKEN,
    DEC_LITERAL,
    HEX_LITERAL,
    OCT_LITERAL,
    IDENTIFIER,
    AMPERSAND,
    AMPERSAND2,
    ASTERISK,
    CARET,
    DOLLAR,
    EQUAL,
    EQUAL2,
    NOT,
    NOT_EQUAL,
    GREATER,
    GREATER_EQUAL,
    LBRACE,
    LESS,
    LESS_EQUAL,
    LPAREN,
    MINUS,
    PERCENT,
    PLUS,
    RBRACE,
    RPAREN,
    SEMICOLON,
    SLASH,
    TILDE,
    VBAR,
    VBAR2,
    FOR,
    WHILE,
    DO,
    IF,
    ELSE,
};