我们从Python开源项目中，提取了以下11个代码示例，用于说明如何使用_sre.MAXREPEAT。
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)
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
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
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
