本文整理匯總了Python中quex.engine.state_machine.core.StateMachine.mount_to_acceptance_states方法的典型用法代碼示例。如果您正苦於以下問題:Python StateMachine.mount_to_acceptance_states方法的具體用法?Python StateMachine.mount_to_acceptance_states怎麽用?Python StateMachine.mount_to_acceptance_states使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類quex.engine.state_machine.core.StateMachine
的用法示例。
在下文中一共展示了StateMachine.mount_to_acceptance_states方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: do
# 需要導入模塊: from quex.engine.state_machine.core import StateMachine [as 別名]
# 或者: from quex.engine.state_machine.core.StateMachine import mount_to_acceptance_states [as 別名]
def do(StateMachineList, CommonTerminalStateF=True, CloneF=True):
"""Connect state machines paralell.
CommonTerminalStateF tells whether the state machines shall trigger
to a common terminal. This may help nfa-to-dfa
or hopcroft minimization for ISOLATED patterns.
A state machine that consists of the COMBINATION
of patterns MUST set this flag to 'False'.
CloneF Controls if state machine list is cloned or not.
If the single state machines are no longer required after
construction, the CloneF can be set to False.
If Cloning is disabled the state machines themselves
will be altered--which brings some advantage in speed.
"""
assert type(StateMachineList) == list
assert len(StateMachineList) != 0
for x in StateMachineList:
assert isinstance(x, StateMachine), x.__class__.__name__
# filter out empty state machines from the consideration
state_machine_list = [ sm for sm in StateMachineList if not (sm.is_empty() or special.is_none(sm))]
empty_state_machine_list = [ sm for sm in StateMachineList if (sm.is_empty() or special.is_none(sm))]
if len(state_machine_list) < 2:
if len(state_machine_list) < 1: result = StateMachine()
elif CloneF: result = state_machine_list[0].clone()
else: result = state_machine_list[0]
return __consider_empty_state_machines(result, empty_state_machine_list)
# (*) need to clone the state machines, i.e. provide their internal
# states with new ids, but the 'behavior' remains. This allows
# state machines to appear twice, or being used in 'larger'
# conglomerates.
if CloneF: clone_list = map(lambda sm: sm.clone(), state_machine_list)
else: clone_list = state_machine_list
# (*) collect all transitions from both state machines into a single one
# (clone to ensure unique identifiers of states)
new_init_state = State.new_merged_core_state((clone.get_init_state() for clone in clone_list),
ClearF=True)
result = StateMachine(InitState=new_init_state)
for clone in clone_list:
result.states.update(clone.states)
# (*) add additional **init** and **end** state
# NOTE: when the result state machine was created, it already contains a
# new initial state index. thus at this point only the new terminal
# state has to be created.
# NOTE: it is essential that the acceptance flag stays False, at this
# point in time, so that the mounting operations only happen on
# the old acceptance states. Later the acceptance state is raised
# to 'accepted' (see below)
new_terminal_state_index = -1L
if CommonTerminalStateF:
new_terminal_state_index = index.get()
result.states[new_terminal_state_index] = \
State.new_merged_core_state(result.get_acceptance_state_list(), \
ClearF=True)
# (*) Connect from the new initial state to the initial states of the
# clones via epsilon transition.
# Connect from each success state of the clones to the new end state
# via epsilon transition.
for clone in clone_list:
result.mount_to_initial_state(clone.init_state_index)
if CommonTerminalStateF:
result.mount_to_acceptance_states(new_terminal_state_index,
CancelStartAcceptanceStateF=False)
return __consider_empty_state_machines(result, empty_state_machine_list)