本文整理汇总了Python中quex.engine.misc.interval_handling.NumberSet.is_empty方法的典型用法代码示例。如果您正苦于以下问题：Python NumberSet.is_empty方法的具体用法？Python NumberSet.is_empty怎么用？Python NumberSet.is_empty使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类quex.engine.misc.interval_handling.NumberSet的用法示例。
在下文中一共展示了NumberSet.is_empty方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: create_ALL_BUT_NEWLINE_state_machine
# 需要导入模块: from quex.engine.misc.interval_handling import NumberSet [as 别名]
# 或者: from quex.engine.misc.interval_handling.NumberSet import is_empty [as 别名]
def create_ALL_BUT_NEWLINE_state_machine(stream):
global Setup
result = StateMachine()
# NOTE: Buffer control characters are supposed to be filtered out by the code
# generator.
trigger_set = NumberSet(Interval(ord("\n"))).get_complement(Setup.buffer_codec.source_set)
if trigger_set.is_empty():
error.log("The set of admissible characters contains only newline.\n"
"The '.' for 'all but newline' is an empty set.",
SourceRef.from_FileHandle(stream))
result.add_transition(result.init_state_index, trigger_set, AcceptanceF=True)
return result示例2: __whitespace_default
# 需要导入模块: from quex.engine.misc.interval_handling import NumberSet [as 别名]
# 或者: from quex.engine.misc.interval_handling.NumberSet import is_empty [as 别名]
def __whitespace_default(self):
"""Try to define default whitespace ' ' or '\t' if their positions
are not yet occupied in the count_command_map.
"""
cs0 = NumberSet(ord(" "))
cs1 = NumberSet(ord("\t"))
result = NumberSet()
if not self.specifier_count_op_map.find_occupier(cs0, set()):
result.unite_with(cs0)
if not self.specifier_count_op_map.find_occupier(cs1, set()):
result.unite_with(cs1)
if result.is_empty():
error.log("Trying to implement default whitespace ' ' or '\\t' failed.\n"
"Characters are occupied by other elements.", self.sr)
return result