def perform_stack_action(self, stack: AutomatonStack,
configuration: Configuration):
current_content = stack.get_current_content()
if not current_content:
raise ParsingError('A variable name was expected!')
stack.add_data(Argument(current_content, free_variable=True))
stack.remove_level()
AcceptState.add_function_to_stack(stack)
def __init__(self):
ModifiedPushdownAutomaton.__init__(self, FunctionNameState(), [AcceptState()], [
FunctionNameStateDescription(),
ArgumentStartStateDescription(),
ArgumentStateDescription(),
FreeArgumentStateDescription(),
RequiredArgumentStateDescription(),
AcceptStateDescription()
])
def __init__(self):
StateDescription.__init__(
self, ArgumentStartState(), _ArgumentStartDefaultTransition(), [
TransitionWithAction(Configuration(ArgumentStartState(), ')'),
Configuration(AcceptState(), ''),
AcceptState.add_function_to_stack),
TransitionWithAction(Configuration(ArgumentStartState(), '*'),
Configuration(FreeArgumentState(), ''),
lambda stack: stack.add_level())
])
def __init__(self):
TransitionWithoutAction.__init__(
self, Configuration(FreeArgumentState(), ')'),
Configuration(AcceptState(), ''))
def __init__(self):
StateDescription.__init__(self, AcceptState(),
_InvalidAcceptTransition(), [])
def __init__(self):
DefaultTransition.__init__(self, AcceptState())