def roll(self):
while True:
try:
line = read_form()
except (KeyboardInterrupt,EOFError) as e:
print("\nMoriturus te saluto.")
exit(0)
tokens = scan_lexer.tokenize(line)
balance = 0
ast,balance = scan_lexer.prstree_balance(tokens)
if balance < 0:
print("Exception: Cannot close more than opened parentheses")
continue
elif balance > 0:
print("Exception: All opened parentheses must be closed")
continue
""" Replacing the string format"""
ast = str_format(ast)
for expr in ast:
""" Print the evaluation of the expression in scope.evaluate(expression) """
try:
print(evaluator.evaluate(expr))
except Exception as e:
print(str(e))
def completer(self, input, state):
tokens = scan_lexer.tokenize(input)
symbol = tokens[-1]
if not scan_lexer.is_smbl(symbol):
return None
options = self.get_options(symbol.name)
if state >= len(options):
return None
tokens[-1] = options[state]
return ''.join(tokens)
