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- import sys
- sys.path = ['.'] + sys.path
-
- from test.test_support import verbose, run_unittest
- import re
- from sre import Scanner
- import sys, os, traceback
-
- # Misc tests from Tim Peters' re.doc
-
- # WARNING: Don't change details in these tests if you don't know
- # what you're doing. Some of these tests were carefuly modeled to
- # cover most of the code.
-
- import unittest
-
- class ReTests(unittest.TestCase):
- def test_search_star_plus(self):
- self.assertEqual(re.search('x*', 'axx').span(0), (0, 0))
- self.assertEqual(re.search('x*', 'axx').span(), (0, 0))
- self.assertEqual(re.search('x+', 'axx').span(0), (1, 3))
- self.assertEqual(re.search('x+', 'axx').span(), (1, 3))
- self.assertEqual(re.search('x', 'aaa'), None)
- self.assertEqual(re.match('a*', 'xxx').span(0), (0, 0))
- self.assertEqual(re.match('a*', 'xxx').span(), (0, 0))
- self.assertEqual(re.match('x*', 'xxxa').span(0), (0, 3))
- self.assertEqual(re.match('x*', 'xxxa').span(), (0, 3))
- self.assertEqual(re.match('a+', 'xxx'), None)
-
- def bump_num(self, matchobj):
- int_value = int(matchobj.group(0))
- return str(int_value + 1)
-
- def test_basic_re_sub(self):
- self.assertEqual(re.sub("(?i)b+", "x", "bbbb BBBB"), 'x x')
- self.assertEqual(re.sub(r'\d+', self.bump_num, '08.2 -2 23x99y'),
- '9.3 -3 24x100y')
- self.assertEqual(re.sub(r'\d+', self.bump_num, '08.2 -2 23x99y', 3),
- '9.3 -3 23x99y')
-
- self.assertEqual(re.sub('.', lambda m: r"\n", 'x'), '\\n')
- self.assertEqual(re.sub('.', r"\n", 'x'), '\n')
-
- s = r"\1\1"
- self.assertEqual(re.sub('(.)', s, 'x'), 'xx')
- self.assertEqual(re.sub('(.)', re.escape(s), 'x'), s)
- self.assertEqual(re.sub('(.)', lambda m: s, 'x'), s)
-
- self.assertEqual(re.sub('(?P<a>x)', '\g<a>\g<a>', 'xx'), 'xxxx')
- self.assertEqual(re.sub('(?P<a>x)', '\g<a>\g<1>', 'xx'), 'xxxx')
- self.assertEqual(re.sub('(?P<unk>x)', '\g<unk>\g<unk>', 'xx'), 'xxxx')
- self.assertEqual(re.sub('(?P<unk>x)', '\g<1>\g<1>', 'xx'), 'xxxx')
-
- self.assertEqual(re.sub('a',r'\t\n\v\r\f\a\b\B\Z\a\A\w\W\s\S\d\D','a'),
- '\t\n\v\r\f\a\b\\B\\Z\a\\A\\w\\W\\s\\S\\d\\D')
- self.assertEqual(re.sub('a', '\t\n\v\r\f\a', 'a'), '\t\n\v\r\f\a')
- self.assertEqual(re.sub('a', '\t\n\v\r\f\a', 'a'),
- (chr(9)+chr(10)+chr(11)+chr(13)+chr(12)+chr(7)))
-
- self.assertEqual(re.sub('^\s*', 'X', 'test'), 'Xtest')
-
- def test_bug_449964(self):
- # fails for group followed by other escape
- self.assertEqual(re.sub(r'(?P<unk>x)', '\g<1>\g<1>\\b', 'xx'),
- 'xx\bxx\b')
-
- def test_bug_449000(self):
- # Test for sub() on escaped characters
- self.assertEqual(re.sub(r'\r\n', r'\n', 'abc\r\ndef\r\n'),
- 'abc\ndef\n')
- self.assertEqual(re.sub('\r\n', r'\n', 'abc\r\ndef\r\n'),
- 'abc\ndef\n')
- self.assertEqual(re.sub(r'\r\n', '\n', 'abc\r\ndef\r\n'),
- 'abc\ndef\n')
- self.assertEqual(re.sub('\r\n', '\n', 'abc\r\ndef\r\n'),
- 'abc\ndef\n')
-
- def test_qualified_re_sub(self):
- self.assertEqual(re.sub('a', 'b', 'aaaaa'), 'bbbbb')
- self.assertEqual(re.sub('a', 'b', 'aaaaa', 1), 'baaaa')
-
- def test_bug_114660(self):
- self.assertEqual(re.sub(r'(\S)\s+(\S)', r'\1 \2', 'hello there'),
- 'hello there')
-
- def test_bug_462270(self):
- # Test for empty sub() behaviour, see SF bug #462270
- self.assertEqual(re.sub('x*', '-', 'abxd'), '-a-b-d-')
- self.assertEqual(re.sub('x+', '-', 'abxd'), 'ab-d')
-
- def test_symbolic_refs(self):
- self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<a', 'xx')
- self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<', 'xx')
- self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g', 'xx')
- self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<a a>', 'xx')
- self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<1a1>', 'xx')
- self.assertRaises(IndexError, re.sub, '(?P<a>x)', '\g<ab>', 'xx')
- self.assertRaises(re.error, re.sub, '(?P<a>x)|(?P<b>y)', '\g<b>', 'xx')
- self.assertRaises(re.error, re.sub, '(?P<a>x)|(?P<b>y)', '\\2', 'xx')
-
- def test_re_subn(self):
- self.assertEqual(re.subn("(?i)b+", "x", "bbbb BBBB"), ('x x', 2))
- self.assertEqual(re.subn("b+", "x", "bbbb BBBB"), ('x BBBB', 1))
- self.assertEqual(re.subn("b+", "x", "xyz"), ('xyz', 0))
- self.assertEqual(re.subn("b*", "x", "xyz"), ('xxxyxzx', 4))
- self.assertEqual(re.subn("b*", "x", "xyz", 2), ('xxxyz', 2))
-
- def test_re_split(self):
- self.assertEqual(re.split(":", ":a:b::c"), ['', 'a', 'b', '', 'c'])
- self.assertEqual(re.split(":*", ":a:b::c"), ['', 'a', 'b', 'c'])
- self.assertEqual(re.split("(:*)", ":a:b::c"),
- ['', ':', 'a', ':', 'b', '::', 'c'])
- self.assertEqual(re.split("(?::*)", ":a:b::c"), ['', 'a', 'b', 'c'])
- self.assertEqual(re.split("(:)*", ":a:b::c"),
- ['', ':', 'a', ':', 'b', ':', 'c'])
- self.assertEqual(re.split("([b:]+)", ":a:b::c"),
- ['', ':', 'a', ':b::', 'c'])
- self.assertEqual(re.split("(b)|(:+)", ":a:b::c"),
- ['', None, ':', 'a', None, ':', '', 'b', None, '',
- None, '::', 'c'])
- self.assertEqual(re.split("(?:b)|(?::+)", ":a:b::c"),
- ['', 'a', '', '', 'c'])
-
- def test_qualified_re_split(self):
- self.assertEqual(re.split(":", ":a:b::c", 2), ['', 'a', 'b::c'])
- self.assertEqual(re.split(':', 'a:b:c:d', 2), ['a', 'b', 'c:d'])
- self.assertEqual(re.split("(:)", ":a:b::c", 2),
- ['', ':', 'a', ':', 'b::c'])
- self.assertEqual(re.split("(:*)", ":a:b::c", 2),
- ['', ':', 'a', ':', 'b::c'])
-
- def test_re_findall(self):
- self.assertEqual(re.findall(":+", "abc"), [])
- self.assertEqual(re.findall(":+", "a:b::c:::d"), [":", "::", ":::"])
- self.assertEqual(re.findall("(:+)", "a:b::c:::d"), [":", "::", ":::"])
- self.assertEqual(re.findall("(:)(:*)", "a:b::c:::d"), [(":", ""),
- (":", ":"),
- (":", "::")])
-
- def test_bug_117612(self):
- self.assertEqual(re.findall(r"(a|(b))", "aba"),
- [("a", ""),("b", "b"),("a", "")])
-
- def test_re_match(self):
- self.assertEqual(re.match('a', 'a').groups(), ())
- self.assertEqual(re.match('(a)', 'a').groups(), ('a',))
- self.assertEqual(re.match(r'(a)', 'a').group(0), 'a')
- self.assertEqual(re.match(r'(a)', 'a').group(1), 'a')
- self.assertEqual(re.match(r'(a)', 'a').group(1, 1), ('a', 'a'))
-
- pat = re.compile('((a)|(b))(c)?')
- self.assertEqual(pat.match('a').groups(), ('a', 'a', None, None))
- self.assertEqual(pat.match('b').groups(), ('b', None, 'b', None))
- self.assertEqual(pat.match('ac').groups(), ('a', 'a', None, 'c'))
- self.assertEqual(pat.match('bc').groups(), ('b', None, 'b', 'c'))
- self.assertEqual(pat.match('bc').groups(""), ('b', "", 'b', 'c'))
-
- # A single group
- m = re.match('(a)', 'a')
- self.assertEqual(m.group(0), 'a')
- self.assertEqual(m.group(0), 'a')
- self.assertEqual(m.group(1), 'a')
- self.assertEqual(m.group(1, 1), ('a', 'a'))
-
- pat = re.compile('(?:(?P<a1>a)|(?P<b2>b))(?P<c3>c)?')
- self.assertEqual(pat.match('a').group(1, 2, 3), ('a', None, None))
- self.assertEqual(pat.match('b').group('a1', 'b2', 'c3'),
- (None, 'b', None))
- self.assertEqual(pat.match('ac').group(1, 'b2', 3), ('a', None, 'c'))
-
- def test_re_groupref_exists(self):
- return # not yet
- self.assertEqual(re.match('^(\()?([^()]+)(?(1)\))$', '(a)').groups(),
- ('(', 'a'))
- self.assertEqual(re.match('^(\()?([^()]+)(?(1)\))$', 'a').groups(),
- (None, 'a'))
- self.assertEqual(re.match('^(\()?([^()]+)(?(1)\))$', 'a)'), None)
- self.assertEqual(re.match('^(\()?([^()]+)(?(1)\))$', '(a'), None)
- self.assertEqual(re.match('^(?:(a)|c)((?(1)b|d))$', 'ab').groups(),
- ('a', 'b'))
- self.assertEqual(re.match('^(?:(a)|c)((?(1)b|d))$', 'cd').groups(),
- (None, 'd'))
- self.assertEqual(re.match('^(?:(a)|c)((?(1)|d))$', 'cd').groups(),
- (None, 'd'))
- self.assertEqual(re.match('^(?:(a)|c)((?(1)|d))$', 'a').groups(),
- ('a', ''))
-
- def test_re_groupref(self):
- self.assertEqual(re.match(r'^(\|)?([^()]+)\1$', '|a|').groups(),
- ('|', 'a'))
- self.assertEqual(re.match(r'^(\|)?([^()]+)\1?$', 'a').groups(),
- (None, 'a'))
- self.assertEqual(re.match(r'^(\|)?([^()]+)\1$', 'a|'), None)
- self.assertEqual(re.match(r'^(\|)?([^()]+)\1$', '|a'), None)
- self.assertEqual(re.match(r'^(?:(a)|c)(\1)$', 'aa').groups(),
- ('a', 'a'))
- self.assertEqual(re.match(r'^(?:(a)|c)(\1)?$', 'c').groups(),
- (None, None))
-
- def test_groupdict(self):
- self.assertEqual(re.match('(?P<first>first) (?P<second>second)',
- 'first second').groupdict(),
- {'first':'first', 'second':'second'})
-
- def test_expand(self):
- self.assertEqual(re.match("(?P<first>first) (?P<second>second)",
- "first second")
- .expand(r"\2 \1 \g<second> \g<first>"),
- "second first second first")
-
- def test_repeat_minmax(self):
- self.assertEqual(re.match("^(\w){1}$", "abc"), None)
- self.assertEqual(re.match("^(\w){1}?$", "abc"), None)
- self.assertEqual(re.match("^(\w){1,2}$", "abc"), None)
- self.assertEqual(re.match("^(\w){1,2}?$", "abc"), None)
-
- self.assertEqual(re.match("^(\w){3}$", "abc").group(1), "c")
- self.assertEqual(re.match("^(\w){1,3}$", "abc").group(1), "c")
- self.assertEqual(re.match("^(\w){1,4}$", "abc").group(1), "c")
- self.assertEqual(re.match("^(\w){3,4}?$", "abc").group(1), "c")
- self.assertEqual(re.match("^(\w){3}?$", "abc").group(1), "c")
- self.assertEqual(re.match("^(\w){1,3}?$", "abc").group(1), "c")
- self.assertEqual(re.match("^(\w){1,4}?$", "abc").group(1), "c")
- self.assertEqual(re.match("^(\w){3,4}?$", "abc").group(1), "c")
-
- self.assertEqual(re.match("^x{1}$", "xxx"), None)
- self.assertEqual(re.match("^x{1}?$", "xxx"), None)
- self.assertEqual(re.match("^x{1,2}$", "xxx"), None)
- self.assertEqual(re.match("^x{1,2}?$", "xxx"), None)
-
- self.assertNotEqual(re.match("^x{3}$", "xxx"), None)
- self.assertNotEqual(re.match("^x{1,3}$", "xxx"), None)
- self.assertNotEqual(re.match("^x{1,4}$", "xxx"), None)
- self.assertNotEqual(re.match("^x{3,4}?$", "xxx"), None)
- self.assertNotEqual(re.match("^x{3}?$", "xxx"), None)
- self.assertNotEqual(re.match("^x{1,3}?$", "xxx"), None)
- self.assertNotEqual(re.match("^x{1,4}?$", "xxx"), None)
- self.assertNotEqual(re.match("^x{3,4}?$", "xxx"), None)
-
- def test_getattr(self):
- self.assertEqual(re.match("(a)", "a").pos, 0)
- self.assertEqual(re.match("(a)", "a").endpos, 1)
- self.assertEqual(re.match("(a)", "a").string, "a")
- self.assertEqual(re.match("(a)", "a").regs, ((0, 1), (0, 1)))
- self.assertNotEqual(re.match("(a)", "a").re, None)
-
- def test_special_escapes(self):
- self.assertEqual(re.search(r"\b(b.)\b",
- "abcd abc bcd bx").group(1), "bx")
- self.assertEqual(re.search(r"\B(b.)\B",
- "abc bcd bc abxd").group(1), "bx")
- self.assertEqual(re.search(r"\b(b.)\b",
- "abcd abc bcd bx", re.LOCALE).group(1), "bx")
- self.assertEqual(re.search(r"\B(b.)\B",
- "abc bcd bc abxd", re.LOCALE).group(1), "bx")
- self.assertEqual(re.search(r"\b(b.)\b",
- "abcd abc bcd bx", re.UNICODE).group(1), "bx")
- self.assertEqual(re.search(r"\B(b.)\B",
- "abc bcd bc abxd", re.UNICODE).group(1), "bx")
- self.assertEqual(re.search(r"^abc$", "\nabc\n", re.M).group(0), "abc")
- self.assertEqual(re.search(r"^\Aabc\Z$", "abc", re.M).group(0), "abc")
- self.assertEqual(re.search(r"^\Aabc\Z$", "\nabc\n", re.M), None)
- self.assertEqual(re.search(r"\b(b.)\b",
- u"abcd abc bcd bx").group(1), "bx")
- self.assertEqual(re.search(r"\B(b.)\B",
- u"abc bcd bc abxd").group(1), "bx")
- self.assertEqual(re.search(r"^abc$", u"\nabc\n", re.M).group(0), "abc")
- self.assertEqual(re.search(r"^\Aabc\Z$", u"abc", re.M).group(0), "abc")
- self.assertEqual(re.search(r"^\Aabc\Z$", u"\nabc\n", re.M), None)
- self.assertEqual(re.search(r"\d\D\w\W\s\S",
- "1aa! a").group(0), "1aa! a")
- self.assertEqual(re.search(r"\d\D\w\W\s\S",
- "1aa! a", re.LOCALE).group(0), "1aa! a")
- self.assertEqual(re.search(r"\d\D\w\W\s\S",
- "1aa! a", re.UNICODE).group(0), "1aa! a")
-
- def test_ignore_case(self):
- self.assertEqual(re.match("abc", "ABC", re.I).group(0), "ABC")
- self.assertEqual(re.match("abc", u"ABC", re.I).group(0), "ABC")
-
- def test_bigcharset(self):
- self.assertEqual(re.match(u"([\u2222\u2223])",
- u"\u2222").group(1), u"\u2222")
- self.assertEqual(re.match(u"([\u2222\u2223])",
- u"\u2222", re.UNICODE).group(1), u"\u2222")
-
- def test_anyall(self):
- self.assertEqual(re.match("a.b", "a\nb", re.DOTALL).group(0),
- "a\nb")
- self.assertEqual(re.match("a.*b", "a\n\nb", re.DOTALL).group(0),
- "a\n\nb")
-
- def test_non_consuming(self):
- self.assertEqual(re.match("(a(?=\s[^a]))", "a b").group(1), "a")
- self.assertEqual(re.match("(a(?=\s[^a]*))", "a b").group(1), "a")
- self.assertEqual(re.match("(a(?=\s[abc]))", "a b").group(1), "a")
- self.assertEqual(re.match("(a(?=\s[abc]*))", "a bc").group(1), "a")
- self.assertEqual(re.match(r"(a)(?=\s\1)", "a a").group(1), "a")
- self.assertEqual(re.match(r"(a)(?=\s\1*)", "a aa").group(1), "a")
- self.assertEqual(re.match(r"(a)(?=\s(abc|a))", "a a").group(1), "a")
-
- self.assertEqual(re.match(r"(a(?!\s[^a]))", "a a").group(1), "a")
- self.assertEqual(re.match(r"(a(?!\s[abc]))", "a d").group(1), "a")
- self.assertEqual(re.match(r"(a)(?!\s\1)", "a b").group(1), "a")
- self.assertEqual(re.match(r"(a)(?!\s(abc|a))", "a b").group(1), "a")
-
- def test_ignore_case(self):
- self.assertEqual(re.match(r"(a\s[^a])", "a b", re.I).group(1), "a b")
- self.assertEqual(re.match(r"(a\s[^a]*)", "a bb", re.I).group(1), "a bb")
- self.assertEqual(re.match(r"(a\s[abc])", "a b", re.I).group(1), "a b")
- self.assertEqual(re.match(r"(a\s[abc]*)", "a bb", re.I).group(1), "a bb")
- self.assertEqual(re.match(r"((a)\s\2)", "a a", re.I).group(1), "a a")
- self.assertEqual(re.match(r"((a)\s\2*)", "a aa", re.I).group(1), "a aa")
- self.assertEqual(re.match(r"((a)\s(abc|a))", "a a", re.I).group(1), "a a")
- self.assertEqual(re.match(r"((a)\s(abc|a)*)", "a aa", re.I).group(1), "a aa")
-
- def test_category(self):
- self.assertEqual(re.match(r"(\s)", " ").group(1), " ")
-
- def test_getlower(self):
- import _sre
- self.assertEqual(_sre.getlower(ord('A'), 0), ord('a'))
- self.assertEqual(_sre.getlower(ord('A'), re.LOCALE), ord('a'))
- self.assertEqual(_sre.getlower(ord('A'), re.UNICODE), ord('a'))
-
- self.assertEqual(re.match("abc", "ABC", re.I).group(0), "ABC")
- self.assertEqual(re.match("abc", u"ABC", re.I).group(0), "ABC")
-
- def test_not_literal(self):
- self.assertEqual(re.search("\s([^a])", " b").group(1), "b")
- self.assertEqual(re.search("\s([^a]*)", " bb").group(1), "bb")
-
- def test_search_coverage(self):
- self.assertEqual(re.search("\s(b)", " b").group(1), "b")
- self.assertEqual(re.search("a\s", "a ").group(0), "a ")
-
- def test_re_escape(self):
- p=""
- for i in range(0, 256):
- p = p + chr(i)
- self.assertEqual(re.match(re.escape(chr(i)), chr(i)) is not None,
- True)
- self.assertEqual(re.match(re.escape(chr(i)), chr(i)).span(), (0,1))
-
- pat=re.compile(re.escape(p))
- self.assertEqual(pat.match(p) is not None, True)
- self.assertEqual(pat.match(p).span(), (0,256))
-
- def test_pickling(self):
- import pickle
- self.pickle_test(pickle)
- import cPickle
- self.pickle_test(cPickle)
-
- def pickle_test(self, pickle):
- oldpat = re.compile('a(?:b|(c|e){1,2}?|d)+?(.)')
- s = pickle.dumps(oldpat)
- newpat = pickle.loads(s)
- self.assertEqual(oldpat, newpat)
-
- def test_constants(self):
- self.assertEqual(re.I, re.IGNORECASE)
- self.assertEqual(re.L, re.LOCALE)
- self.assertEqual(re.M, re.MULTILINE)
- self.assertEqual(re.S, re.DOTALL)
- self.assertEqual(re.X, re.VERBOSE)
-
- def test_flags(self):
- for flag in [re.I, re.M, re.X, re.S, re.L]:
- self.assertNotEqual(re.compile('^pattern$', flag), None)
-
- def test_sre_character_literals(self):
- for i in [0, 8, 16, 32, 64, 127, 128, 255]:
- self.assertNotEqual(re.match(r"\%03o" % i, chr(i)), None)
- self.assertNotEqual(re.match(r"\%03o0" % i, chr(i)+"0"), None)
- self.assertNotEqual(re.match(r"\%03o8" % i, chr(i)+"8"), None)
- self.assertNotEqual(re.match(r"\x%02x" % i, chr(i)), None)
- self.assertNotEqual(re.match(r"\x%02x0" % i, chr(i)+"0"), None)
- self.assertNotEqual(re.match(r"\x%02xz" % i, chr(i)+"z"), None)
- self.assertRaises(re.error, re.match, "\911", "")
-
- def test_bug_113254(self):
- self.assertEqual(re.match(r'(a)|(b)', 'b').start(1), -1)
- self.assertEqual(re.match(r'(a)|(b)', 'b').end(1), -1)
- self.assertEqual(re.match(r'(a)|(b)', 'b').span(1), (-1, -1))
-
- def test_bug_527371(self):
- # bug described in patches 527371/672491
- self.assertEqual(re.match(r'(a)?a','a').lastindex, None)
- self.assertEqual(re.match(r'(a)(b)?b','ab').lastindex, 1)
- self.assertEqual(re.match(r'(?P<a>a)(?P<b>b)?b','ab').lastgroup, 'a')
- self.assertEqual(re.match("(?P<a>a(b))", "ab").lastgroup, 'a')
- self.assertEqual(re.match("((a))", "a").lastindex, 1)
-
- def test_bug_545855(self):
- # bug 545855 -- This pattern failed to cause a compile error as it
- # should, instead provoking a TypeError.
- self.assertRaises(re.error, re.compile, 'foo[a-')
-
- def test_bug_418626(self):
- # bugs 418626 at al. -- Testing Greg Chapman's addition of op code
- # SRE_OP_MIN_REPEAT_ONE for eliminating recursion on simple uses of
- # pattern '*?' on a long string.
- self.assertEqual(re.match('.*?c', 10000*'ab'+'cd').end(0), 20001)
- self.assertEqual(re.match('.*?cd', 5000*'ab'+'c'+5000*'ab'+'cde').end(0),
- 20003)
- self.assertEqual(re.match('.*?cd', 20000*'abc'+'de').end(0), 60001)
- # non-simple '*?' still recurses and hits the recursion limit
- self.assertRaises(RuntimeError, re.search, '(a|b)*?c', 10000*'ab'+'cd')
-
- def test_bug_612074(self):
- pat=u"["+re.escape(u"\u2039")+u"]"
- self.assertEqual(re.compile(pat) and 1, 1)
-
- def test_stack_overflow(self):
- # nasty case that overflows the straightforward recursive
- # implementation of repeated groups.
- self.assertRaises(RuntimeError, re.match, '(x)*', 50000*'x')
- self.assertRaises(RuntimeError, re.match, '(x)*y', 50000*'x'+'y')
- self.assertRaises(RuntimeError, re.match, '(x)*?y', 50000*'x'+'y')
-
- def test_scanner(self):
- def s_ident(scanner, token): return token
- def s_operator(scanner, token): return "op%s" % token
- def s_float(scanner, token): return float(token)
- def s_int(scanner, token): return int(token)
-
- scanner = Scanner([
- (r"[a-zA-Z_]\w*", s_ident),
- (r"\d+\.\d*", s_float),
- (r"\d+", s_int),
- (r"=|\+|-|\*|/", s_operator),
- (r"\s+", None),
- ])
-
- self.assertNotEqual(scanner.scanner.scanner("").pattern, None)
-
- self.assertEqual(scanner.scan("sum = 3*foo + 312.50 + bar"),
- (['sum', 'op=', 3, 'op*', 'foo', 'op+', 312.5,
- 'op+', 'bar'], ''))
-
- def test_bug_448951(self):
- # bug 448951 (similar to 429357, but with single char match)
- # (Also test greedy matches.)
- for op in '','?','*':
- self.assertEqual(re.match(r'((.%s):)?z'%op, 'z').groups(),
- (None, None))
- self.assertEqual(re.match(r'((.%s):)?z'%op, 'a:z').groups(),
- ('a:', 'a'))
-
- def test_bug_725106(self):
- # capturing groups in alternatives in repeats
- self.assertEqual(re.match('^((a)|b)*', 'abc').groups(),
- ('b', 'a'))
- self.assertEqual(re.match('^(([ab])|c)*', 'abc').groups(),
- ('c', 'b'))
- self.assertEqual(re.match('^((d)|[ab])*', 'abc').groups(),
- ('b', None))
- self.assertEqual(re.match('^((a)c|[ab])*', 'abc').groups(),
- ('b', None))
- self.assertEqual(re.match('^((a)|b)*?c', 'abc').groups(),
- ('b', 'a'))
- self.assertEqual(re.match('^(([ab])|c)*?d', 'abcd').groups(),
- ('c', 'b'))
- self.assertEqual(re.match('^((d)|[ab])*?c', 'abc').groups(),
- ('b', None))
- self.assertEqual(re.match('^((a)c|[ab])*?c', 'abc').groups(),
- ('b', None))
-
- def test_bug_725149(self):
- # mark_stack_base restoring before restoring marks
- self.assertEqual(re.match('(a)(?:(?=(b)*)c)*', 'abb').groups(),
- ('a', None))
- self.assertEqual(re.match('(a)((?!(b)*))*', 'abb').groups(),
- ('a', None, None))
-
- def test_bug_764548(self):
- # bug 764548, re.compile() barfs on str/unicode subclasses
- try:
- unicode
- except NameError:
- return # no problem if we have no unicode
- class my_unicode(unicode): pass
- pat = re.compile(my_unicode("abc"))
- self.assertEqual(pat.match("xyz"), None)
-
- def test_finditer(self):
- iter = re.finditer(r":+", "a:b::c:::d")
- self.assertEqual([item.group(0) for item in iter],
- [":", "::", ":::"])
-
- def test_bug_926075(self):
- try:
- unicode
- except NameError:
- return # no problem if we have no unicode
- self.assert_(re.compile('bug_926075') is not
- re.compile(eval("u'bug_926075'")))
-
- def run_re_tests():
- from test.re_tests import benchmarks, tests, SUCCEED, FAIL, SYNTAX_ERROR
- if verbose:
- print 'Running re_tests test suite'
- else:
- # To save time, only run the first and last 10 tests
- #tests = tests[:10] + tests[-10:]
- pass
-
- for t in tests:
- sys.stdout.flush()
- pattern = s = outcome = repl = expected = None
- if len(t) == 5:
- pattern, s, outcome, repl, expected = t
- elif len(t) == 3:
- pattern, s, outcome = t
- else:
- raise ValueError, ('Test tuples should have 3 or 5 fields', t)
-
- try:
- obj = re.compile(pattern)
- except re.error:
- if outcome == SYNTAX_ERROR: pass # Expected a syntax error
- else:
- print '=== Syntax error:', t
- except KeyboardInterrupt: raise KeyboardInterrupt
- except:
- print '*** Unexpected error ***', t
- if verbose:
- traceback.print_exc(file=sys.stdout)
- else:
- try:
- result = obj.search(s)
- except re.error, msg:
- print '=== Unexpected exception', t, repr(msg)
- if outcome == SYNTAX_ERROR:
- # This should have been a syntax error; forget it.
- pass
- elif outcome == FAIL:
- if result is None: pass # No match, as expected
- else: print '=== Succeeded incorrectly', t
- elif outcome == SUCCEED:
- if result is not None:
- # Matched, as expected, so now we compute the
- # result string and compare it to our expected result.
- start, end = result.span(0)
- vardict={'found': result.group(0),
- 'groups': result.group(),
- 'flags': result.re.flags}
- for i in range(1, 100):
- try:
- gi = result.group(i)
- # Special hack because else the string concat fails:
- if gi is None:
- gi = "None"
- except IndexError:
- gi = "Error"
- vardict['g%d' % i] = gi
- for i in result.re.groupindex.keys():
- try:
- gi = result.group(i)
- if gi is None:
- gi = "None"
- except IndexError:
- gi = "Error"
- vardict[i] = gi
- repl = eval(repl, vardict)
- if repl != expected:
- print '=== grouping error', t,
- print repr(repl) + ' should be ' + repr(expected)
- else:
- print '=== Failed incorrectly', t
-
- # Try the match on a unicode string, and check that it
- # still succeeds.
- try:
- result = obj.search(unicode(s, "latin-1"))
- if result is None:
- print '=== Fails on unicode match', t
- except NameError:
- continue # 1.5.2
- except TypeError:
- continue # unicode test case
-
- # Try the match on a unicode pattern, and check that it
- # still succeeds.
- obj=re.compile(unicode(pattern, "latin-1"))
- result = obj.search(s)
- if result is None:
- print '=== Fails on unicode pattern match', t
-
- # Try the match with the search area limited to the extent
- # of the match and see if it still succeeds. \B will
- # break (because it won't match at the end or start of a
- # string), so we'll ignore patterns that feature it.
-
- if pattern[:2] != '\\B' and pattern[-2:] != '\\B' \
- and result is not None:
- obj = re.compile(pattern)
- result = obj.search(s, result.start(0), result.end(0) + 1)
- if result is None:
- print '=== Failed on range-limited match', t
-
- # Try the match with IGNORECASE enabled, and check that it
- # still succeeds.
- obj = re.compile(pattern, re.IGNORECASE)
- result = obj.search(s)
- if result is None:
- print '=== Fails on case-insensitive match', t
-
- # Try the match with LOCALE enabled, and check that it
- # still succeeds.
- obj = re.compile(pattern, re.LOCALE)
- result = obj.search(s)
- if result is None:
- print '=== Fails on locale-sensitive match', t
-
- # Try the match with UNICODE locale enabled, and check
- # that it still succeeds.
- obj = re.compile(pattern, re.UNICODE)
- result = obj.search(s)
- if result is None:
- print '=== Fails on unicode-sensitive match', t
-
- def test_main():
- run_unittest(ReTests)
- run_re_tests()
-
- if __name__ == "__main__":
- test_main()
-