本文整理汇总了Python中_sre.MAXREPEAT属性的典型用法代码示例。如果您正苦于以下问题：Python _sre.MAXREPEAT属性的具体用法？Python _sre.MAXREPEAT怎么用？Python _sre.MAXREPEAT使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类_sre的用法示例。
在下文中一共展示了_sre.MAXREPEAT属性的5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: _simple
# 需要导入模块: import _sre [as 别名]
# 或者: from _sre import MAXREPEAT [as 别名]
def _simple(av):
# check if av is a "simple" operator
lo, hi = av[2].getwidth()
if lo == 0 and hi == MAXREPEAT:
raise error("nothing to repeat")
return lo == hi == 1 and av[2][0][0] != SUBPATTERN 示例2: test_repeat_minmax_overflow
# 需要导入模块: import _sre [as 别名]
# 或者: from _sre import MAXREPEAT [as 别名]
def test_repeat_minmax_overflow(self):
# Issue #13169
string = "x" * 100000
self.assertEqual(re.match(r".{65535}", string).span(), (0, 65535))
self.assertEqual(re.match(r".{,65535}", string).span(), (0, 65535))
self.assertEqual(re.match(r".{65535,}?", string).span(), (0, 65535))
self.assertEqual(re.match(r".{65536}", string).span(), (0, 65536))
self.assertEqual(re.match(r".{,65536}", string).span(), (0, 65536))
self.assertEqual(re.match(r".{65536,}?", string).span(), (0, 65536))
# 2**128 should be big enough to overflow both SRE_CODE and Py_ssize_t.
self.assertRaises(OverflowError, re.compile, r".{%d}" % 2**128)
self.assertRaises(OverflowError, re.compile, r".{,%d}" % 2**128)
self.assertRaises(OverflowError, re.compile, r".{%d,}?" % 2**128)
self.assertRaises(OverflowError, re.compile, r".{%d,%d}" % (2**129, 2**128))
# FIXME: brython: implement test.support
# @cpython_only
# def test_repeat_minmax_overflow_maxrepeat(self):
# try:
# from _sre import MAXREPEAT
# except ImportError:
# self.skipTest('requires _sre.MAXREPEAT constant')
# string = "x" * 100000
# self.assertIsNone(re.match(r".{%d}" % (MAXREPEAT - 1), string))
# self.assertEqual(re.match(r".{,%d}" % (MAXREPEAT - 1), string).span(),
# (0, 100000))
# self.assertIsNone(re.match(r".{%d,}?" % (MAXREPEAT - 1), string))
# self.assertRaises(OverflowError, re.compile, r".{%d}" % MAXREPEAT)
# self.assertRaises(OverflowError, re.compile, r".{,%d}" % MAXREPEAT)
# self.assertRaises(OverflowError, re.compile, r".{%d,}?" % MAXREPEAT) 示例3: test_repeat_minmax_overflow_maxrepeat
# 需要导入模块: import _sre [as 别名]
# 或者: from _sre import MAXREPEAT [as 别名]
def test_repeat_minmax_overflow_maxrepeat(self):
try:
from _sre import MAXREPEAT
except ImportError:
self.skipTest('requires _sre.MAXREPEAT constant')
string = "x" * 100000
self.assertIsNone(re.match(r".{%d}" % (MAXREPEAT - 1), string))
self.assertEqual(re.match(r".{,%d}" % (MAXREPEAT - 1), string).span(),
(0, 100000))
self.assertIsNone(re.match(r".{%d,}?" % (MAXREPEAT - 1), string))
self.assertRaises(OverflowError, re.compile, r".{%d}" % MAXREPEAT)
self.assertRaises(OverflowError, re.compile, r".{,%d}" % MAXREPEAT)
self.assertRaises(OverflowError, re.compile, r".{%d,}?" % MAXREPEAT) 示例4: _simple
# 需要导入模块: import _sre [as 别名]
# 或者: from _sre import MAXREPEAT [as 别名]
def _simple(av):
# check if av is a "simple" operator
lo, hi = av[2].getwidth()
if lo == 0 and hi == MAXREPEAT:
raise error, "nothing to repeat"
return lo == hi == 1 and av[2][0][0] != SUBPATTERN 示例5: getwidth
# 需要导入模块: import _sre [as 别名]
# 或者: from _sre import MAXREPEAT [as 别名]
def getwidth(self):
# determine the width (min, max) for this subpattern
if self.width:
return self.width
lo = hi = 0
UNITCODES = (ANY, RANGE, IN, LITERAL, NOT_LITERAL, CATEGORY)
REPEATCODES = (MIN_REPEAT, MAX_REPEAT)
for op, av in self.data:
if op is BRANCH:
i = MAXREPEAT - 1
j = 0
for av in av[1]:
l, h = av.getwidth()
i = min(i, l)
j = max(j, h)
lo = lo + i
hi = hi + j
elif op is CALL:
i, j = av.getwidth()
lo = lo + i
hi = hi + j
elif op is SUBPATTERN:
i, j = av[1].getwidth()
lo = lo + i
hi = hi + j
elif op in REPEATCODES:
i, j = av[2].getwidth()
lo = lo + i * av[0]
hi = hi + j * av[1]
elif op in UNITCODES:
lo = lo + 1
hi = hi + 1
elif op == SUCCESS:
break
self.width = min(lo, MAXREPEAT - 1), min(hi, MAXREPEAT)
return self.width