def test_construct_regexp(self):
res = [
(u"\\.", None),
(u"..", None),
(u"\\.", None),
(u"^a\aa[ha-z]k{1,3}h*h+h?(x|yy)(a+b|cd)$", None),
(u"(?=Asimov)", None),
(u"(?!Asimov)", None),
(u"(?<=abc)def", None),
(u"(?<!foo)", None),
(u"(?:foo)", None),
(u"(?#foo)", u""),
(u"(.+) \1", None),
(u"\\A\\b\\B\\d\\D\\s\\S\\w\\W\\Z\a",
u"\\A\\b\\B[\\d][\\D][\\s][\\S][\\w][\\W]\\Z\a"),
(u"a{3,5}?a+?a*?a??", None),
(u"^foo$", None),
(u"[-+]?(\\d+(\\.\\d*)?|\\.\\d+)([eE][-+]?\\d+)?",
u"[\\-\\+]?([\\d]+(\\.[\\d]*)?|\\.[\\d]+)([eE][\\-\\+]?[\\d]+)?"),
(u"(\$\d*)", u"(\\$[\\d]*)"),
(u"\\$\\.\\^\\[\\]\\:\\-\\+\\?\\\\", None),
(u"[^a][^ab]", None),
(u"[ab][abc]", None),
(u"[.]", u"\\."),
(u"[^a-z]", None),
(u"[^a-z\w]", None),
]
for r, o in res:
if o is None:
o = r
self.assertEqual(re_replace_literals(r, {}), o)
def test_construct_regexp(self):
res = [
(u"\\.", None),
(u"..", None),
(u"\\.", None),
(u"^a\aa[ha-z]k{1,3}h*h+h?(x|yy)(a+b|cd)$", None),
(u"(?=Asimov)", None),
(u"(?!Asimov)", None),
(u"(?<=abc)def", None),
(u"(?<!foo)", None),
(u"(?#foo)", u""),
(u"(.+) \1", None),
(u"\\A\\b\\B\\d\\D\\s\\S\\w\\W\\Z\a",
u"\\A\\b\\B[\\d][\\D][\\s][\\S][\\w][\\W]\\Z\a"),
(u"a{3,5}?a+?a*?a??", None),
(u"^foo$", None),
(u"[-+]?(\\d+(\\.\\d*)?|\\.\\d+)([eE][-+]?\\d+)?",
u"[\\-\\+]?([\\d]+(\\.[\\d]*)?|\\.[\\d]+)([eE][\\-\\+]?[\\d]+)?"),
(u"(\\$\\d*)", u"(\\$[\\d]*)"),
(u"\\$\\.\\^\\[\\]\\:\\-\\+\\?\\\\", None),
(u"[^a][^ab]", None),
(u"[ab][abc]", None),
(u"[.]", u"\\."),
(u"[^a-z]", None),
(u"[^a-z\\w]", None),
("(x|yy)", None),
]
for r, o in res:
if o is None:
o = r
self.assertEqual(re_replace_literals(r, {}), o)
def test_construct_regexp_37_change(self):
# Starting with 3.7 the parser throws out some subpattern
# nodes. We try to recover them or test against the old and new result.
res = [
(u"(?:foo)", ("(?:foo)", "foo")),
(u"(?:foo)x", ("(?:foo)x", "foox")),
(u"(?:foo)(?:bar)", ("(?:foo)(?:bar)", "foobar")),
(u"(?:foo|bla)", None),
(u"(?:foo|bla)x", None),
]
for r, o in res:
out = re_replace_literals(r, {})
if o is None:
o = r
if isinstance(o, tuple):
assert out in o
else:
assert out == o
def test_construct_regexp_37_change(self):
# Starting with 3.7 the parser throws out some subpattern
# nodes. We try to recover them or test against the old and new result.
res = [
(u"(?:foo)", ("(?:foo)", "foo")),
(u"(?:foo)x", ("(?:foo)x", "foox")),
(u"(?:foo)(?:bar)", ("(?:foo)(?:bar)", "foobar")),
(u"(?:foo|bla)", None),
(u"(?:foo|bla)x", None),
]
for r, o in res:
out = re_replace_literals(r, {})
if o is None:
o = r
if isinstance(o, tuple):
assert out in o
else:
assert out == o