def __init__(self, formatter, raise_on_error=True, machine_name='root'):
self.formatter = formatter
self.raise_on_error = raise_on_error
self.machine_name = machine_name
self.line_offset = None
self.i18n_language = None
self.feature_uri = None
self.listener = FormatterListener(self.formatter)
self.machines = []
self.push_machine(machine_name)
self.lexer = I18nLexer(self)
class Parser(object):
def __init__(self, formatter, raise_on_error=True, machine_name='root'):
self.formatter = formatter
self.raise_on_error = raise_on_error
self.machine_name = machine_name
self.line_offset = None
self.i18n_language = None
self.feature_uri = None
self.listener = FormatterListener(self.formatter)
self.machines = []
self.push_machine(machine_name)
self.lexer = I18nLexer(self)
def parse(self, gherkin, feature_uri, line_offset):
self.feature_uri = feature_uri
self.formatter.uri(feature_uri)
self.line_offset = line_offset
self.lexer.scan(gherkin)
def __getattr__(self, name):
attr = getattr(self.listener, name)
if type(attr) is not types.MethodType:
raise AttributeError
def wrapper(*args):
if args[0] is self:
args = args[1:]
if name == u'eof':
self.event(name, None)
else:
self.event(name, args[-1])
attr(*args)
if name == u'eof':
self.pop_machine()
self.push_machine(self.machine_name)
setattr(self, name, wrapper)
return wrapper.__get__(self, self.__class__)
def event(self, event, line):
if line:
line = self.line_offset + line
else:
line = None
self.machine.event(event, line)
if not self.machine.error:
return
state = self.machine.state
legal_events = self.machine.expected
if self.raise_on_error:
raise ParseError(state, event, legal_events, self.feature_uri, line)
else:
self.listener.syntax_error(state, event, legal_events,
self.feature_uri, line)
def push_machine(self, name):
self.machines.append(Machine(self, name))
def pop_machine(self):
self.machines.pop()
@property
def machine(self):
return self.machines[-1]
@property
def expected(self):
return self.machine.expected
def force_state(self, state):
self.machine.state = state
