def _handle_in(self, value):
candidates = list(chain(*(self._handle_state(i) for i in value)))
if candidates[0] is False:
candidates = set(string.printable).difference(candidates[1:])
return random_choice(list(candidates))
else:
return random_choice(candidates)
def _handle_in(self, value):
candidates = list(chain(*(self._handle_state(i) for i in value)))
if candidates[0] is False:
candidates = set(string.printable).difference(candidates[1:])
return random_choice(list(candidates))
else:
return random_choice(candidates)
def __init__(self):
super(Xeger, self).__init__()
self._cache = dict()
self._categories = {
"category_digit": lambda: self._alphabets["digits"],
"category_not_digit": lambda: self._alphabets["nondigits"],
"category_space": lambda: self._alphabets["whitespace"],
"category_not_space": lambda: self._alphabets["nonwhitespace"],
"category_word": lambda: self._alphabets["word"],
"category_not_word": lambda: self._alphabets["nonword"],
}
self._cases = {
"literal": lambda x: unichr(x),
"not_literal": lambda x: random_choice(string.printable.replace(unichr(x), "")),
"at": lambda x: "",
"in": lambda x: self._handle_in(x),
"any": lambda x: self.printable(1),
"range": lambda x: [unichr(i) for i in xrange(x[0], x[1] + 1)],
"category": lambda x: self._categories[x](),
"branch": lambda x: "".join(self._handle_state(i) for i in random_choice(x[1])),
"subpattern": lambda x: self._handle_group(x),
"assert": lambda x: "".join(self._handle_state(i) for i in x[1]),
"assert_not": lambda x: "",
"groupref": lambda x: self._cache[x],
"max_repeat": lambda x: self._handle_repeat(*x),
"negate": lambda x: [False],
}
def __init__(self):
super(Xeger, self).__init__()
self._cache = dict()
self._categories = {
"category_digit": lambda: self._alphabets['digits'],
"category_not_digit": lambda: self._alphabets['nondigits'],
"category_space": lambda: self._alphabets['whitespace'],
"category_not_space": lambda: self._alphabets['nonwhitespace'],
"category_word": lambda: self._alphabets['word'],
"category_not_word": lambda: self._alphabets['nonword'],
}
self._cases = {
"literal":
lambda x: unichr(x),
"not_literal":
lambda x: random_choice(string.printable.replace(unichr(x), '')),
"at":
lambda x: '',
"in":
lambda x: self._handle_in(x),
"any":
lambda x: self.printable(1),
"range":
lambda x: [unichr(i) for i in xrange(x[0], x[1] + 1)],
"category":
lambda x: self._categories[x](),
'branch':
lambda x: ''.join(
self._handle_state(i) for i in random_choice(x[1])),
"subpattern":
lambda x: self._handle_group(x),
"assert":
lambda x: ''.join(self._handle_state(i) for i in x[1]),
"assert_not":
lambda x: '',
"groupref":
lambda x: self._cache[x],
'max_repeat':
lambda x: self._handle_repeat(*x),
'negate':
lambda x: [False],
}
def sample_wr(population, k):
"""Samples k random elements (with replacement) from a population"""
return [random_choice(population) for i in itertools.repeat(None, k)]
def test_008_random_choice(self):
population = [0, 1, 2, 3, 4, 5]
self.assertTrue(utility.random_choice(population) in population)
def test_008_random_choice(self):
population = [0, 1, 2, 3, 4, 5]
self.assertTrue(utility.random_choice(population) in population)
def sample_wr(population, k):
"""Samples k random elements (with replacement) from a population"""
return [random_choice(population) for i in itertools.repeat(None, k)]
