
KEYWORDS = ['class','constructor','function',
            'method','field','static', 'var','int','char',
            'boolean','void','true','false','null','this',
            'let','do','if','else','while','return']

SYMBOLS = ['{','}','(',')','[',']','.',',',';','+','-','*','/','&','|','<','>','=','~']

TOKEN_TYPES = ['keyword', 'symbol', ]

TOKEN_TYPE_KEYWORD = 'keyword'
TOKEN_TYPE_SYMBOL = 'symbol'
TOKEN_TYPE_INT_CONST = 'integerConstant'
TOKEN_TYPE_STR_CONST = 'stringConstant'
TOKEN_TYPE_IDENTIFIER = 'identifier'
