| from test.support import verbose, run_unittest, gc_collect, bigmemtest, _2G |
| import io |
| import re |
| from re import Scanner |
| import sys |
| import string |
| import traceback |
| from weakref import proxy |
| |
| from test.test_bigmem import character_size |
| |
| |
| # 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 carefully modeled to |
| # cover most of the code. |
| |
| import unittest |
| |
| class ReTests(unittest.TestCase): |
| |
| def test_keep_buffer(self): |
| # See bug 14212 |
| b = bytearray(b'x') |
| it = re.finditer(b'a', b) |
| with self.assertRaises(BufferError): |
| b.extend(b'x'*400) |
| list(it) |
| del it |
| gc_collect() |
| b.extend(b'x'*400) |
| |
| def test_weakref(self): |
| s = 'QabbbcR' |
| x = re.compile('ab+c') |
| y = proxy(x) |
| self.assertEqual(x.findall('QabbbcR'), y.findall('QabbbcR')) |
| |
| 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_bug_1661(self): |
| # Verify that flags do not get silently ignored with compiled patterns |
| pattern = re.compile('.') |
| self.assertRaises(ValueError, re.match, pattern, 'A', re.I) |
| self.assertRaises(ValueError, re.search, pattern, 'A', re.I) |
| self.assertRaises(ValueError, re.findall, pattern, 'A', re.I) |
| self.assertRaises(ValueError, re.compile, pattern, re.I) |
| |
| def test_bug_3629(self): |
| # A regex that triggered a bug in the sre-code validator |
| re.compile("(?P<quote>)(?(quote))") |
| |
| def test_sub_template_numeric_escape(self): |
| # bug 776311 and friends |
| self.assertEqual(re.sub('x', r'\0', 'x'), '\0') |
| self.assertEqual(re.sub('x', r'\000', 'x'), '\000') |
| self.assertEqual(re.sub('x', r'\001', 'x'), '\001') |
| self.assertEqual(re.sub('x', r'\008', 'x'), '\0' + '8') |
| self.assertEqual(re.sub('x', r'\009', 'x'), '\0' + '9') |
| self.assertEqual(re.sub('x', r'\111', 'x'), '\111') |
| self.assertEqual(re.sub('x', r'\117', 'x'), '\117') |
| |
| self.assertEqual(re.sub('x', r'\1111', 'x'), '\1111') |
| self.assertEqual(re.sub('x', r'\1111', 'x'), '\111' + '1') |
| |
| self.assertEqual(re.sub('x', r'\00', 'x'), '\x00') |
| self.assertEqual(re.sub('x', r'\07', 'x'), '\x07') |
| self.assertEqual(re.sub('x', r'\08', 'x'), '\0' + '8') |
| self.assertEqual(re.sub('x', r'\09', 'x'), '\0' + '9') |
| self.assertEqual(re.sub('x', r'\0a', 'x'), '\0' + 'a') |
| |
| self.assertEqual(re.sub('x', r'\400', 'x'), '\0') |
| self.assertEqual(re.sub('x', r'\777', 'x'), '\377') |
| |
| self.assertRaises(re.error, re.sub, 'x', r'\1', 'x') |
| self.assertRaises(re.error, re.sub, 'x', r'\8', 'x') |
| self.assertRaises(re.error, re.sub, 'x', r'\9', 'x') |
| self.assertRaises(re.error, re.sub, 'x', r'\11', 'x') |
| self.assertRaises(re.error, re.sub, 'x', r'\18', 'x') |
| self.assertRaises(re.error, re.sub, 'x', r'\1a', 'x') |
| self.assertRaises(re.error, re.sub, 'x', r'\90', 'x') |
| self.assertRaises(re.error, re.sub, 'x', r'\99', 'x') |
| self.assertRaises(re.error, re.sub, 'x', r'\118', 'x') # r'\11' + '8' |
| self.assertRaises(re.error, re.sub, 'x', r'\11a', 'x') |
| self.assertRaises(re.error, re.sub, 'x', r'\181', 'x') # r'\18' + '1' |
| self.assertRaises(re.error, re.sub, 'x', r'\800', 'x') # r'\80' + '0' |
| |
| # in python2.3 (etc), these loop endlessly in sre_parser.py |
| self.assertEqual(re.sub('(((((((((((x)))))))))))', r'\11', 'x'), 'x') |
| self.assertEqual(re.sub('((((((((((y))))))))))(.)', r'\118', 'xyz'), |
| 'xz8') |
| self.assertEqual(re.sub('((((((((((y))))))))))(.)', r'\11a', 'xyz'), |
| 'xza') |
| |
| 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_groups(self): |
| re.compile('(?P<a>x)(?P=a)(?(a)y)') |
| re.compile('(?P<a1>x)(?P=a1)(?(a1)y)') |
| self.assertRaises(re.error, re.compile, '(?P<a>)(?P<a>)') |
| self.assertRaises(re.error, re.compile, '(?Px)') |
| self.assertRaises(re.error, re.compile, '(?P=)') |
| self.assertRaises(re.error, re.compile, '(?P=1)') |
| self.assertRaises(re.error, re.compile, '(?P=a)') |
| self.assertRaises(re.error, re.compile, '(?P=a1)') |
| self.assertRaises(re.error, re.compile, '(?P=a.)') |
| self.assertRaises(re.error, re.compile, '(?P<)') |
| self.assertRaises(re.error, re.compile, '(?P<>)') |
| self.assertRaises(re.error, re.compile, '(?P<1>)') |
| self.assertRaises(re.error, re.compile, '(?P<a.>)') |
| self.assertRaises(re.error, re.compile, '(?())') |
| self.assertRaises(re.error, re.compile, '(?(a))') |
| self.assertRaises(re.error, re.compile, '(?(1a))') |
| self.assertRaises(re.error, re.compile, '(?(a.))') |
| |
| 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<>', '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') |
| self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<-1>', '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): |
| 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))$', 'a').groups(), |
| ('a', '')) |
| |
| # Tests for bug #1177831: exercise groups other than the first group |
| p = re.compile('(?P<g1>a)(?P<g2>b)?((?(g2)c|d))') |
| self.assertEqual(p.match('abc').groups(), |
| ('a', 'b', 'c')) |
| self.assertEqual(p.match('ad').groups(), |
| ('a', None, 'd')) |
| self.assertEqual(p.match('abd'), None) |
| self.assertEqual(p.match('ac'), None) |
| |
| |
| def test_re_groupref(self): |
| self.assertEqual(re.match(r'^(\|)?([^()]+)\1$', '|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}?$", "xxx"), None) |
| |
| self.assertEqual(re.match("^x{}$", "xxx"), None) |
| self.assertNotEqual(re.match("^x{}$", "x{}"), None) |
| |
| def test_getattr(self): |
| self.assertEqual(re.compile("(?i)(a)(b)").pattern, "(?i)(a)(b)") |
| self.assertEqual(re.compile("(?i)(a)(b)").flags, re.I | re.U) |
| self.assertEqual(re.compile("(?i)(a)(b)").groups, 2) |
| self.assertEqual(re.compile("(?i)(a)(b)").groupindex, {}) |
| self.assertEqual(re.compile("(?i)(?P<first>a)(?P<other>b)").groupindex, |
| {'first': 1, 'other': 2}) |
| |
| self.assertEqual(re.match("(a)", "a").pos, 0) |
| self.assertEqual(re.match("(a)", "a").endpos, 1) |
| self.assertEqual(re.match("(a)", "a").string, "a") |
| self.assertEqual(re.match("(a)", "a").regs, ((0, 1), (0, 1))) |
| self.assertNotEqual(re.match("(a)", "a").re, None) |
| |
| def test_special_escapes(self): |
| self.assertEqual(re.search(r"\b(b.)\b", |
| "abcd abc bcd bx").group(1), "bx") |
| self.assertEqual(re.search(r"\B(b.)\B", |
| "abc bcd bc abxd").group(1), "bx") |
| self.assertEqual(re.search(r"\b(b.)\b", |
| "abcd abc bcd bx", re.LOCALE).group(1), "bx") |
| self.assertEqual(re.search(r"\B(b.)\B", |
| "abc bcd bc abxd", re.LOCALE).group(1), "bx") |
| self.assertEqual(re.search(r"\b(b.)\b", |
| "abcd abc bcd bx", re.UNICODE).group(1), "bx") |
| self.assertEqual(re.search(r"\B(b.)\B", |
| "abc bcd bc abxd", re.UNICODE).group(1), "bx") |
| self.assertEqual(re.search(r"^abc$", "\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", |
| "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"^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"\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_string_boundaries(self): |
| # See http://bugs.python.org/issue10713 |
| self.assertEqual(re.search(r"\b(abc)\b", "abc").group(1), |
| "abc") |
| # There's a word boundary at the start of a string. |
| self.assertTrue(re.match(r"\b", "abc")) |
| # A non-empty string includes a non-boundary zero-length match. |
| self.assertTrue(re.search(r"\B", "abc")) |
| # There is no non-boundary match at the start of a string. |
| self.assertFalse(re.match(r"\B", "abc")) |
| # However, an empty string contains no word boundaries, and also no |
| # non-boundaries. |
| self.assertEqual(re.search(r"\B", ""), None) |
| # This one is questionable and different from the perlre behaviour, |
| # but describes current behavior. |
| self.assertEqual(re.search(r"\b", ""), None) |
| # A single word-character string has two boundaries, but no |
| # non-boundary gaps. |
| self.assertEqual(len(re.findall(r"\b", "a")), 2) |
| self.assertEqual(len(re.findall(r"\B", "a")), 0) |
| # If there are no words, there are no boundaries |
| self.assertEqual(len(re.findall(r"\b", " ")), 0) |
| self.assertEqual(len(re.findall(r"\b", " ")), 0) |
| # Can match around the whitespace. |
| self.assertEqual(len(re.findall(r"\B", " ")), 2) |
| |
| def test_bigcharset(self): |
| self.assertEqual(re.match("([\u2222\u2223])", |
| "\u2222").group(1), "\u2222") |
| self.assertEqual(re.match("([\u2222\u2223])", |
| "\u2222", re.UNICODE).group(1), "\u2222") |
| |
| def test_big_codesize(self): |
| # Issue #1160 |
| r = re.compile('|'.join(('%d'%x for x in range(10000)))) |
| self.assertIsNotNone(r.match('1000')) |
| self.assertIsNotNone(r.match('9999')) |
| |
| 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("abc", "ABC", re.I).group(0), "ABC") |
| self.assertEqual(re.match("abc", "ABC", re.I).group(0), "ABC") |
| 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", "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 assertMatch(self, pattern, text, match=None, span=None, |
| matcher=re.match): |
| if match is None and span is None: |
| # the pattern matches the whole text |
| match = text |
| span = (0, len(text)) |
| elif match is None or span is None: |
| raise ValueError('If match is not None, span should be specified ' |
| '(and vice versa).') |
| m = matcher(pattern, text) |
| self.assertTrue(m) |
| self.assertEqual(m.group(), match) |
| self.assertEqual(m.span(), span) |
| |
| def test_re_escape(self): |
| alnum_chars = string.ascii_letters + string.digits |
| p = ''.join(chr(i) for i in range(256)) |
| for c in p: |
| if c in alnum_chars: |
| self.assertEqual(re.escape(c), c) |
| elif c == '\x00': |
| self.assertEqual(re.escape(c), '\\000') |
| else: |
| self.assertEqual(re.escape(c), '\\' + c) |
| self.assertMatch(re.escape(c), c) |
| self.assertMatch(re.escape(p), p) |
| |
| def test_re_escape_byte(self): |
| alnum_chars = (string.ascii_letters + string.digits).encode('ascii') |
| p = bytes(range(256)) |
| for i in p: |
| b = bytes([i]) |
| if b in alnum_chars: |
| self.assertEqual(re.escape(b), b) |
| elif i == 0: |
| self.assertEqual(re.escape(b), b'\\000') |
| else: |
| self.assertEqual(re.escape(b), b'\\' + b) |
| self.assertMatch(re.escape(b), b) |
| self.assertMatch(re.escape(p), p) |
| |
| def test_re_escape_non_ascii(self): |
| s = 'xxx\u2620\u2620\u2620xxx' |
| s_escaped = re.escape(s) |
| self.assertEqual(s_escaped, 'xxx\\\u2620\\\u2620\\\u2620xxx') |
| self.assertMatch(s_escaped, s) |
| self.assertMatch('.%s+.' % re.escape('\u2620'), s, |
| 'x\u2620\u2620\u2620x', (2, 7), re.search) |
| |
| def test_re_escape_non_ascii_bytes(self): |
| b = 'y\u2620y\u2620y'.encode('utf-8') |
| b_escaped = re.escape(b) |
| self.assertEqual(b_escaped, b'y\\\xe2\\\x98\\\xa0y\\\xe2\\\x98\\\xa0y') |
| self.assertMatch(b_escaped, b) |
| res = re.findall(re.escape('\u2620'.encode('utf-8')), b) |
| self.assertEqual(len(res), 2) |
| |
| 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_sre_character_class_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)), None) |
| self.assertNotEqual(re.match(r"[\%03o8]" % i, chr(i)), None) |
| self.assertNotEqual(re.match(r"[\x%02x]" % i, chr(i)), None) |
| self.assertNotEqual(re.match(r"[\x%02x0]" % i, chr(i)), None) |
| self.assertNotEqual(re.match(r"[\x%02xz]" % i, chr(i)), 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 used to hit the recursion limit, before the |
| # non-recursive scheme was implemented. |
| self.assertEqual(re.search('(a|b)*?c', 10000*'ab'+'cd').end(0), 20001) |
| |
| def test_bug_612074(self): |
| pat="["+re.escape("\u2039")+"]" |
| self.assertEqual(re.compile(pat) and 1, 1) |
| |
| def test_stack_overflow(self): |
| # nasty cases that used to overflow the straightforward recursive |
| # implementation of repeated groups. |
| self.assertEqual(re.match('(x)*', 50000*'x').group(1), 'x') |
| self.assertEqual(re.match('(x)*y', 50000*'x'+'y').group(1), 'x') |
| self.assertEqual(re.match('(x)*?y', 50000*'x'+'y').group(1), 'x') |
| |
| 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 |
| class my_unicode(str): 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): |
| self.assertTrue(re.compile('bug_926075') is not |
| re.compile(b'bug_926075')) |
| |
| def test_bug_931848(self): |
| pattern = eval('"[\u002E\u3002\uFF0E\uFF61]"') |
| self.assertEqual(re.compile(pattern).split("a.b.c"), |
| ['a','b','c']) |
| |
| def test_bug_581080(self): |
| iter = re.finditer(r"\s", "a b") |
| self.assertEqual(next(iter).span(), (1,2)) |
| self.assertRaises(StopIteration, next, iter) |
| |
| scanner = re.compile(r"\s").scanner("a b") |
| self.assertEqual(scanner.search().span(), (1, 2)) |
| self.assertEqual(scanner.search(), None) |
| |
| def test_bug_817234(self): |
| iter = re.finditer(r".*", "asdf") |
| self.assertEqual(next(iter).span(), (0, 4)) |
| self.assertEqual(next(iter).span(), (4, 4)) |
| self.assertRaises(StopIteration, next, iter) |
| |
| def test_bug_6561(self): |
| # '\d' should match characters in Unicode category 'Nd' |
| # (Number, Decimal Digit), but not those in 'Nl' (Number, |
| # Letter) or 'No' (Number, Other). |
| decimal_digits = [ |
| '\u0037', # '\N{DIGIT SEVEN}', category 'Nd' |
| '\u0e58', # '\N{THAI DIGIT SIX}', category 'Nd' |
| '\uff10', # '\N{FULLWIDTH DIGIT ZERO}', category 'Nd' |
| ] |
| for x in decimal_digits: |
| self.assertEqual(re.match('^\d$', x).group(0), x) |
| |
| not_decimal_digits = [ |
| '\u2165', # '\N{ROMAN NUMERAL SIX}', category 'Nl' |
| '\u3039', # '\N{HANGZHOU NUMERAL TWENTY}', category 'Nl' |
| '\u2082', # '\N{SUBSCRIPT TWO}', category 'No' |
| '\u32b4', # '\N{CIRCLED NUMBER THIRTY NINE}', category 'No' |
| ] |
| for x in not_decimal_digits: |
| self.assertIsNone(re.match('^\d$', x)) |
| |
| def test_empty_array(self): |
| # SF buf 1647541 |
| import array |
| for typecode in 'bBuhHiIlLfd': |
| a = array.array(typecode) |
| self.assertEqual(re.compile(b"bla").match(a), None) |
| self.assertEqual(re.compile(b"").match(a).groups(), ()) |
| |
| def test_inline_flags(self): |
| # Bug #1700 |
| upper_char = chr(0x1ea0) # Latin Capital Letter A with Dot Bellow |
| lower_char = chr(0x1ea1) # Latin Small Letter A with Dot Bellow |
| |
| p = re.compile(upper_char, re.I | re.U) |
| q = p.match(lower_char) |
| self.assertNotEqual(q, None) |
| |
| p = re.compile(lower_char, re.I | re.U) |
| q = p.match(upper_char) |
| self.assertNotEqual(q, None) |
| |
| p = re.compile('(?i)' + upper_char, re.U) |
| q = p.match(lower_char) |
| self.assertNotEqual(q, None) |
| |
| p = re.compile('(?i)' + lower_char, re.U) |
| q = p.match(upper_char) |
| self.assertNotEqual(q, None) |
| |
| p = re.compile('(?iu)' + upper_char) |
| q = p.match(lower_char) |
| self.assertNotEqual(q, None) |
| |
| p = re.compile('(?iu)' + lower_char) |
| q = p.match(upper_char) |
| self.assertNotEqual(q, None) |
| |
| def test_dollar_matches_twice(self): |
| "$ matches the end of string, and just before the terminating \n" |
| pattern = re.compile('$') |
| self.assertEqual(pattern.sub('#', 'a\nb\n'), 'a\nb#\n#') |
| self.assertEqual(pattern.sub('#', 'a\nb\nc'), 'a\nb\nc#') |
| self.assertEqual(pattern.sub('#', '\n'), '#\n#') |
| |
| pattern = re.compile('$', re.MULTILINE) |
| self.assertEqual(pattern.sub('#', 'a\nb\n' ), 'a#\nb#\n#' ) |
| self.assertEqual(pattern.sub('#', 'a\nb\nc'), 'a#\nb#\nc#') |
| self.assertEqual(pattern.sub('#', '\n'), '#\n#') |
| |
| def test_bytes_str_mixing(self): |
| # Mixing str and bytes is disallowed |
| pat = re.compile('.') |
| bpat = re.compile(b'.') |
| self.assertRaises(TypeError, pat.match, b'b') |
| self.assertRaises(TypeError, bpat.match, 'b') |
| self.assertRaises(TypeError, pat.sub, b'b', 'c') |
| self.assertRaises(TypeError, pat.sub, 'b', b'c') |
| self.assertRaises(TypeError, pat.sub, b'b', b'c') |
| self.assertRaises(TypeError, bpat.sub, b'b', 'c') |
| self.assertRaises(TypeError, bpat.sub, 'b', b'c') |
| self.assertRaises(TypeError, bpat.sub, 'b', 'c') |
| |
| def test_ascii_and_unicode_flag(self): |
| # String patterns |
| for flags in (0, re.UNICODE): |
| pat = re.compile('\xc0', flags | re.IGNORECASE) |
| self.assertNotEqual(pat.match('\xe0'), None) |
| pat = re.compile('\w', flags) |
| self.assertNotEqual(pat.match('\xe0'), None) |
| pat = re.compile('\xc0', re.ASCII | re.IGNORECASE) |
| self.assertEqual(pat.match('\xe0'), None) |
| pat = re.compile('(?a)\xc0', re.IGNORECASE) |
| self.assertEqual(pat.match('\xe0'), None) |
| pat = re.compile('\w', re.ASCII) |
| self.assertEqual(pat.match('\xe0'), None) |
| pat = re.compile('(?a)\w') |
| self.assertEqual(pat.match('\xe0'), None) |
| # Bytes patterns |
| for flags in (0, re.ASCII): |
| pat = re.compile(b'\xc0', re.IGNORECASE) |
| self.assertEqual(pat.match(b'\xe0'), None) |
| pat = re.compile(b'\w') |
| self.assertEqual(pat.match(b'\xe0'), None) |
| # Incompatibilities |
| self.assertRaises(ValueError, re.compile, b'\w', re.UNICODE) |
| self.assertRaises(ValueError, re.compile, b'(?u)\w') |
| self.assertRaises(ValueError, re.compile, '\w', re.UNICODE | re.ASCII) |
| self.assertRaises(ValueError, re.compile, '(?u)\w', re.ASCII) |
| self.assertRaises(ValueError, re.compile, '(?a)\w', re.UNICODE) |
| self.assertRaises(ValueError, re.compile, '(?au)\w') |
| |
| def test_bug_6509(self): |
| # Replacement strings of both types must parse properly. |
| # all strings |
| pat = re.compile('a(\w)') |
| self.assertEqual(pat.sub('b\\1', 'ac'), 'bc') |
| pat = re.compile('a(.)') |
| self.assertEqual(pat.sub('b\\1', 'a\u1234'), 'b\u1234') |
| pat = re.compile('..') |
| self.assertEqual(pat.sub(lambda m: 'str', 'a5'), 'str') |
| |
| # all bytes |
| pat = re.compile(b'a(\w)') |
| self.assertEqual(pat.sub(b'b\\1', b'ac'), b'bc') |
| pat = re.compile(b'a(.)') |
| self.assertEqual(pat.sub(b'b\\1', b'a\xCD'), b'b\xCD') |
| pat = re.compile(b'..') |
| self.assertEqual(pat.sub(lambda m: b'bytes', b'a5'), b'bytes') |
| |
| def test_dealloc(self): |
| # issue 3299: check for segfault in debug build |
| import _sre |
| # the overflow limit is different on wide and narrow builds and it |
| # depends on the definition of SRE_CODE (see sre.h). |
| # 2**128 should be big enough to overflow on both. For smaller values |
| # a RuntimeError is raised instead of OverflowError. |
| long_overflow = 2**128 |
| self.assertRaises(TypeError, re.finditer, "a", {}) |
| self.assertRaises(OverflowError, _sre.compile, "abc", 0, [long_overflow]) |
| self.assertRaises(TypeError, _sre.compile, {}, 0, []) |
| |
| def test_compile(self): |
| # Test return value when given string and pattern as parameter |
| pattern = re.compile('random pattern') |
| self.assertIsInstance(pattern, re._pattern_type) |
| same_pattern = re.compile(pattern) |
| self.assertIsInstance(same_pattern, re._pattern_type) |
| self.assertIs(same_pattern, pattern) |
| # Test behaviour when not given a string or pattern as parameter |
| self.assertRaises(TypeError, re.compile, 0) |
| |
| @bigmemtest(size=_2G, memuse=character_size) |
| def test_large_search(self, size): |
| # Issue #10182: indices were 32-bit-truncated. |
| s = 'a' * size |
| m = re.search('$', s) |
| self.assertIsNotNone(m) |
| self.assertEqual(m.start(), size) |
| self.assertEqual(m.end(), size) |
| |
| # The huge memuse is because of re.sub() using a list and a join() |
| # to create the replacement result. |
| @bigmemtest(size=_2G, memuse=16 + 2 * character_size) |
| def test_large_subn(self, size): |
| # Issue #10182: indices were 32-bit-truncated. |
| s = 'a' * size |
| r, n = re.subn('', '', s) |
| self.assertEqual(r, s) |
| self.assertEqual(n, size + 1) |
| |
| |
| def run_re_tests(): |
| from test.re_tests import 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 as 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, end=' ') |
| print(repr(repl) + ' should be ' + repr(expected)) |
| else: |
| print('=== Failed incorrectly', t) |
| |
| # Try the match with both pattern and string converted to |
| # bytes, and check that it still succeeds. |
| try: |
| bpat = bytes(pattern, "ascii") |
| bs = bytes(s, "ascii") |
| except UnicodeEncodeError: |
| # skip non-ascii tests |
| pass |
| else: |
| try: |
| bpat = re.compile(bpat) |
| except Exception: |
| print('=== Fails on bytes pattern compile', t) |
| if verbose: |
| traceback.print_exc(file=sys.stdout) |
| else: |
| bytes_result = bpat.search(bs) |
| if bytes_result is None: |
| print('=== Fails on bytes 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. |
| if '(?u)' not in pattern: |
| 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() |