# TODO: Add fast exponentiation, modular arithmetic,
# sqrt, gcd
print('Type "help" to learn about what options are available.')
while True:
try:
text = input('>>> ')
if text.strip().lower() == 'quit':
sys.stdout.write('\n')
break
elif text.strip().lower() == 'help':
print("This shell can handle the following operations:")
print("+, -, *, /, //, %, **")
else:
lexer = Lexer(text)
tokens = list(lexer.generateTokens())
parser = Parser(tokens)
expression = parser.parse()
interpreter = Interpreter()
answer = interpreter.evaluate(expression)
if answer:
print(answer)
except EOFError:
sys.stdout.write('\n')
break
except KeyboardInterrupt: #ctrl+c
sys.stdout.write('\nKeyboardInterrupt\n')
continue
except Exception as e:
print(e)
from lexer import Lexer
from node_parser import Parser
from interpreter import Interpreter
exp = input("> ")
lex = Lexer(exp)
tokens = lex.generateTokens()
parse = Parser(tokens)
parseTree = parse.parse()
if parseTree:
interpreter = Interpreter()
result = interpreter.visit(parseTree)
print(result)
from lexer import Lexer
while True:
text = input('Expression: ')
lexer = Lexer(text)
tokens = lexer.generateTokens()
print(list(tokens))
