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22 """a set of helper functions for filters..."""
23
24 import operator
25
27 """checks whether a string is all alphanumeric, allowing any unicode characters >= 0x80 to pass the test"""
28 return s.isalnum() or reduce(operator.and_, [c.isalnum() or c >= "\x80" for c in s], True)
29
31 """checks whether countstr occurs the same number of times in str1 and str2"""
32 return str1.count(countstr) == str2.count(countstr)
33
35 """returns whether the result of func is the same for str1 and str2"""
36 return func(str1, *args) == func(str2, *args)
37
39 """checks whether each element in countlist occurs the same number of times in str1 and str2"""
40 return reduce(operator.and_, [countmatch(str1, str2, countstr) for countstr in countlist], True)
41
43 """checks whether the results of each func in funclist match for str1 and str2"""
44 return reduce(operator.and_, [funcmatch(str1, str2, funcstr) for funcstr in funclist], True)
45
47 """returns the number of characters in str1 that pass func"""
48 return len(filter(func, str1))
49
51 """returns a version of the testmethod that operates on filtered strings using strfilter"""
52 def filteredmethod(str1, str2):
53 return testmethod(strfilter(str1), strfilter(str2))
54 filteredmethod.__doc__ = testmethod.__doc__
55 filteredmethod.name = getattr(testmethod, 'name', testmethod.__name__)
56 return filteredmethod
57
59 """passes str1 through a list of filters"""
60 for strfilter in strfilters:
61 str1 = strfilter(str1)
62 return str1
63
65 """returns a version of the testmethod that operates on filtered strings using strfilter"""
66 def filteredmethod(str1, str2):
67 return testmethod(multifilter(str1, strfilters), multifilter(str2, strfilters))
68 filteredmethod.__doc__ = testmethod.__doc__
69 filteredmethod.name = getattr(testmethod, 'name', testmethod.__name__)
70 return filteredmethod
71