diff options
Diffstat (limited to 'Lib/test/test_re.py')
| -rw-r--r-- | Lib/test/test_re.py | 200 |
1 files changed, 100 insertions, 100 deletions
diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py index 24a0604..02fed21 100644 --- a/Lib/test/test_re.py +++ b/Lib/test/test_re.py @@ -113,10 +113,10 @@ class ReTests(unittest.TestCase): 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('(?P<a>x)', r'\g<a>\g<a>', 'xx'), 'xxxx') + self.assertEqual(re.sub('(?P<a>x)', r'\g<a>\g<1>', 'xx'), 'xxxx') + self.assertEqual(re.sub('(?P<unk>x)', r'\g<unk>\g<unk>', 'xx'), 'xxxx') + self.assertEqual(re.sub('(?P<unk>x)', r'\g<1>\g<1>', 'xx'), 'xxxx') self.assertEqual(re.sub('a', r'\t\n\v\r\f\a\b', 'a'), '\t\n\v\r\f\a\b') self.assertEqual(re.sub('a', '\t\n\v\r\f\a\b', 'a'), '\t\n\v\r\f\a\b') @@ -127,11 +127,11 @@ class ReTests(unittest.TestCase): with self.assertRaises(re.error): self.assertEqual(re.sub('a', '\\' + c, 'a'), '\\' + c) - self.assertEqual(re.sub('^\s*', 'X', 'test'), 'Xtest') + self.assertEqual(re.sub(r'^\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'), + self.assertEqual(re.sub(r'(?P<unk>x)', r'\g<1>\g<1>\b', 'xx'), 'xx\bxx\b') def test_bug_449000(self): @@ -218,26 +218,26 @@ class ReTests(unittest.TestCase): 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)') - re.compile('(?P<a1>x)\1(?(1)y)') - self.checkPatternError('(?P<a>)(?P<a>)', + re.compile(r'(?P<a>x)(?P=a)(?(a)y)') + re.compile(r'(?P<a1>x)(?P=a1)(?(a1)y)') + re.compile(r'(?P<a1>x)\1(?(1)y)') + self.checkPatternError(r'(?P<a>)(?P<a>)', "redefinition of group name 'a' as group 2; " "was group 1") - self.checkPatternError('(?P<a>(?P=a))', + self.checkPatternError(r'(?P<a>(?P=a))', "cannot refer to an open group", 10) - self.checkPatternError('(?Pxy)', 'unknown extension ?Px') - self.checkPatternError('(?P<a>)(?P=a', 'missing ), unterminated name', 11) - self.checkPatternError('(?P=', 'missing group name', 4) - self.checkPatternError('(?P=)', 'missing group name', 4) - self.checkPatternError('(?P=1)', "bad character in group name '1'", 4) - self.checkPatternError('(?P=a)', "unknown group name 'a'") - self.checkPatternError('(?P=a1)', "unknown group name 'a1'") - self.checkPatternError('(?P=a.)', "bad character in group name 'a.'", 4) - self.checkPatternError('(?P<)', 'missing >, unterminated name', 4) - self.checkPatternError('(?P<a', 'missing >, unterminated name', 4) - self.checkPatternError('(?P<', 'missing group name', 4) - self.checkPatternError('(?P<>)', 'missing group name', 4) + self.checkPatternError(r'(?Pxy)', 'unknown extension ?Px') + self.checkPatternError(r'(?P<a>)(?P=a', 'missing ), unterminated name', 11) + self.checkPatternError(r'(?P=', 'missing group name', 4) + self.checkPatternError(r'(?P=)', 'missing group name', 4) + self.checkPatternError(r'(?P=1)', "bad character in group name '1'", 4) + self.checkPatternError(r'(?P=a)', "unknown group name 'a'") + self.checkPatternError(r'(?P=a1)', "unknown group name 'a1'") + self.checkPatternError(r'(?P=a.)', "bad character in group name 'a.'", 4) + self.checkPatternError(r'(?P<)', 'missing >, unterminated name', 4) + self.checkPatternError(r'(?P<a', 'missing >, unterminated name', 4) + self.checkPatternError(r'(?P<', 'missing group name', 4) + self.checkPatternError(r'(?P<>)', 'missing group name', 4) self.checkPatternError(r'(?P<1>)', "bad character in group name '1'", 4) self.checkPatternError(r'(?P<a.>)', "bad character in group name 'a.'", 4) self.checkPatternError(r'(?(', 'missing group name', 3) @@ -256,35 +256,35 @@ class ReTests(unittest.TestCase): self.assertEqual(re.match(pat, 'xc8yz').span(), (0, 5)) def test_symbolic_refs(self): - self.checkTemplateError('(?P<a>x)', '\g<a', 'xx', + self.checkTemplateError('(?P<a>x)', r'\g<a', 'xx', 'missing >, unterminated name', 3) - self.checkTemplateError('(?P<a>x)', '\g<', 'xx', + self.checkTemplateError('(?P<a>x)', r'\g<', 'xx', 'missing group name', 3) - self.checkTemplateError('(?P<a>x)', '\g', 'xx', 'missing <', 2) - self.checkTemplateError('(?P<a>x)', '\g<a a>', 'xx', + self.checkTemplateError('(?P<a>x)', r'\g', 'xx', 'missing <', 2) + self.checkTemplateError('(?P<a>x)', r'\g<a a>', 'xx', "bad character in group name 'a a'", 3) - self.checkTemplateError('(?P<a>x)', '\g<>', 'xx', + self.checkTemplateError('(?P<a>x)', r'\g<>', 'xx', 'missing group name', 3) - self.checkTemplateError('(?P<a>x)', '\g<1a1>', 'xx', + self.checkTemplateError('(?P<a>x)', r'\g<1a1>', 'xx', "bad character in group name '1a1'", 3) self.checkTemplateError('(?P<a>x)', r'\g<2>', 'xx', 'invalid group reference') self.checkTemplateError('(?P<a>x)', r'\2', 'xx', 'invalid group reference') with self.assertRaisesRegex(IndexError, "unknown group name 'ab'"): - re.sub('(?P<a>x)', '\g<ab>', 'xx') + re.sub('(?P<a>x)', r'\g<ab>', 'xx') self.assertEqual(re.sub('(?P<a>x)|(?P<b>y)', r'\g<b>', 'xx'), '') self.assertEqual(re.sub('(?P<a>x)|(?P<b>y)', r'\2', 'xx'), '') - self.checkTemplateError('(?P<a>x)', '\g<-1>', 'xx', + self.checkTemplateError('(?P<a>x)', r'\g<-1>', 'xx', "bad character in group name '-1'", 3) # New valid/invalid identifiers in Python 3 self.assertEqual(re.sub('(?P<ยต>x)', r'\g<ยต>', 'xx'), 'xx') self.assertEqual(re.sub('(?P<๐๐ซ๐ฆ๐ ๐ฌ๐ก๐ข>x)', r'\g<๐๐ซ๐ฆ๐ ๐ฌ๐ก๐ข>', 'xx'), 'xx') - self.checkTemplateError('(?P<a>x)', '\g<ยฉ>', 'xx', + self.checkTemplateError('(?P<a>x)', r'\g<ยฉ>', 'xx', "bad character in group name 'ยฉ'", 3) # Support > 100 groups. pat = '|'.join('x(?P<a%d>%x)y' % (i, i) for i in range(1, 200 + 1)) - self.assertEqual(re.sub(pat, '\g<200>', 'xc8yzxc8y'), 'c8zc8') + self.assertEqual(re.sub(pat, r'\g<200>', 'xc8yzxc8y'), 'c8zc8') def test_re_subn(self): self.assertEqual(re.subn("(?i)b+", "x", "bbbb BBBB"), ('x x', 2)) @@ -472,19 +472,19 @@ class ReTests(unittest.TestCase): re.compile(r".*?").fullmatch("abcd", pos=1, endpos=3).span(), (1, 3)) def test_re_groupref_exists(self): - self.assertEqual(re.match('^(\()?([^()]+)(?(1)\))$', '(a)').groups(), + self.assertEqual(re.match(r'^(\()?([^()]+)(?(1)\))$', '(a)').groups(), ('(', 'a')) - self.assertEqual(re.match('^(\()?([^()]+)(?(1)\))$', 'a').groups(), + self.assertEqual(re.match(r'^(\()?([^()]+)(?(1)\))$', 'a').groups(), (None, 'a')) - self.assertIsNone(re.match('^(\()?([^()]+)(?(1)\))$', 'a)')) - self.assertIsNone(re.match('^(\()?([^()]+)(?(1)\))$', '(a')) + self.assertIsNone(re.match(r'^(\()?([^()]+)(?(1)\))$', 'a)')) + self.assertIsNone(re.match(r'^(\()?([^()]+)(?(1)\))$', '(a')) self.assertEqual(re.match('^(?:(a)|c)((?(1)b|d))$', 'ab').groups(), ('a', 'b')) - self.assertEqual(re.match('^(?:(a)|c)((?(1)b|d))$', 'cd').groups(), + self.assertEqual(re.match(r'^(?:(a)|c)((?(1)b|d))$', 'cd').groups(), (None, 'd')) - self.assertEqual(re.match('^(?:(a)|c)((?(1)|d))$', 'cd').groups(), + self.assertEqual(re.match(r'^(?:(a)|c)((?(1)|d))$', 'cd').groups(), (None, 'd')) - self.assertEqual(re.match('^(?:(a)|c)((?(1)|d))$', 'a').groups(), + self.assertEqual(re.match(r'^(?:(a)|c)((?(1)|d))$', 'a').groups(), ('a', '')) # Tests for bug #1177831: exercise groups other than the first group @@ -509,7 +509,7 @@ class ReTests(unittest.TestCase): 'two branches', 10) def test_re_groupref_overflow(self): - self.checkTemplateError('()', '\g<%s>' % sre_constants.MAXGROUPS, 'xx', + self.checkTemplateError('()', r'\g<%s>' % sre_constants.MAXGROUPS, 'xx', 'invalid group reference', 3) self.checkPatternError(r'(?P<a>)(?(%d))' % sre_constants.MAXGROUPS, 'invalid group reference', 10) @@ -544,37 +544,37 @@ class ReTests(unittest.TestCase): " ") def test_repeat_minmax(self): - self.assertIsNone(re.match("^(\w){1}$", "abc")) - self.assertIsNone(re.match("^(\w){1}?$", "abc")) - self.assertIsNone(re.match("^(\w){1,2}$", "abc")) - self.assertIsNone(re.match("^(\w){1,2}?$", "abc")) - - 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.assertIsNone(re.match("^x{1}$", "xxx")) - self.assertIsNone(re.match("^x{1}?$", "xxx")) - self.assertIsNone(re.match("^x{1,2}$", "xxx")) - self.assertIsNone(re.match("^x{1,2}?$", "xxx")) - - self.assertTrue(re.match("^x{3}$", "xxx")) - self.assertTrue(re.match("^x{1,3}$", "xxx")) - self.assertTrue(re.match("^x{3,3}$", "xxx")) - self.assertTrue(re.match("^x{1,4}$", "xxx")) - self.assertTrue(re.match("^x{3,4}?$", "xxx")) - self.assertTrue(re.match("^x{3}?$", "xxx")) - self.assertTrue(re.match("^x{1,3}?$", "xxx")) - self.assertTrue(re.match("^x{1,4}?$", "xxx")) - self.assertTrue(re.match("^x{3,4}?$", "xxx")) - - self.assertIsNone(re.match("^x{}$", "xxx")) - self.assertTrue(re.match("^x{}$", "x{}")) + self.assertIsNone(re.match(r"^(\w){1}$", "abc")) + self.assertIsNone(re.match(r"^(\w){1}?$", "abc")) + self.assertIsNone(re.match(r"^(\w){1,2}$", "abc")) + self.assertIsNone(re.match(r"^(\w){1,2}?$", "abc")) + + self.assertEqual(re.match(r"^(\w){3}$", "abc").group(1), "c") + self.assertEqual(re.match(r"^(\w){1,3}$", "abc").group(1), "c") + self.assertEqual(re.match(r"^(\w){1,4}$", "abc").group(1), "c") + self.assertEqual(re.match(r"^(\w){3,4}?$", "abc").group(1), "c") + self.assertEqual(re.match(r"^(\w){3}?$", "abc").group(1), "c") + self.assertEqual(re.match(r"^(\w){1,3}?$", "abc").group(1), "c") + self.assertEqual(re.match(r"^(\w){1,4}?$", "abc").group(1), "c") + self.assertEqual(re.match(r"^(\w){3,4}?$", "abc").group(1), "c") + + self.assertIsNone(re.match(r"^x{1}$", "xxx")) + self.assertIsNone(re.match(r"^x{1}?$", "xxx")) + self.assertIsNone(re.match(r"^x{1,2}$", "xxx")) + self.assertIsNone(re.match(r"^x{1,2}?$", "xxx")) + + self.assertTrue(re.match(r"^x{3}$", "xxx")) + self.assertTrue(re.match(r"^x{1,3}$", "xxx")) + self.assertTrue(re.match(r"^x{3,3}$", "xxx")) + self.assertTrue(re.match(r"^x{1,4}$", "xxx")) + self.assertTrue(re.match(r"^x{3,4}?$", "xxx")) + self.assertTrue(re.match(r"^x{3}?$", "xxx")) + self.assertTrue(re.match(r"^x{1,3}?$", "xxx")) + self.assertTrue(re.match(r"^x{1,4}?$", "xxx")) + self.assertTrue(re.match(r"^x{3,4}?$", "xxx")) + + self.assertIsNone(re.match(r"^x{}$", "xxx")) + self.assertTrue(re.match(r"^x{}$", "x{}")) self.checkPatternError(r'x{2,1}', 'min repeat greater than max repeat', 2) @@ -697,10 +697,10 @@ class ReTests(unittest.TestCase): "a\n\nb") def test_lookahead(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[^a]))", "a b").group(1), "a") + self.assertEqual(re.match(r"(a(?=\s[^a]*))", "a b").group(1), "a") + self.assertEqual(re.match(r"(a(?=\s[abc]))", "a b").group(1), "a") + self.assertEqual(re.match(r"(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") @@ -848,12 +848,12 @@ class ReTests(unittest.TestCase): self.assertEqual(re.match(b"abc", b"ABC", re.I|re.L).group(0), b"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") + self.assertEqual(re.search(r"\s([^a])", " b").group(1), "b") + self.assertEqual(re.search(r"\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 ") + self.assertEqual(re.search(r"\s(b)", " b").group(1), "b") + self.assertEqual(re.search(r"a\s", "a ").group(0), "a ") def assertMatch(self, pattern, text, match=None, span=None, matcher=re.match): @@ -1055,8 +1055,8 @@ class ReTests(unittest.TestCase): self.assertIsNone(re.match(r'(a)?a','a').lastindex) 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) + self.assertEqual(re.match(r"(?P<a>a(b))", "ab").lastgroup, 'a') + self.assertEqual(re.match(r"((a))", "a").lastindex, 1) def test_bug_418626(self): # bugs 418626 at al. -- Testing Greg Chapman's addition of op code @@ -1228,7 +1228,7 @@ class ReTests(unittest.TestCase): '\uff10', # '\N{FULLWIDTH DIGIT ZERO}', category 'Nd' ] for x in decimal_digits: - self.assertEqual(re.match('^\d$', x).group(0), x) + self.assertEqual(re.match(r'^\d$', x).group(0), x) not_decimal_digits = [ '\u2165', # '\N{ROMAN NUMERAL SIX}', category 'Nl' @@ -1237,7 +1237,7 @@ class ReTests(unittest.TestCase): '\u32b4', # '\N{CIRCLED NUMBER THIRTY NINE}', category 'No' ] for x in not_decimal_digits: - self.assertIsNone(re.match('^\d$', x)) + self.assertIsNone(re.match(r'^\d$', x)) def test_empty_array(self): # SF buf 1647541 @@ -1306,29 +1306,29 @@ class ReTests(unittest.TestCase): for flags in (0, re.UNICODE): pat = re.compile('\xc0', flags | re.IGNORECASE) self.assertTrue(pat.match('\xe0')) - pat = re.compile('\w', flags) + pat = re.compile(r'\w', flags) self.assertTrue(pat.match('\xe0')) pat = re.compile('\xc0', re.ASCII | re.IGNORECASE) self.assertIsNone(pat.match('\xe0')) pat = re.compile('(?a)\xc0', re.IGNORECASE) self.assertIsNone(pat.match('\xe0')) - pat = re.compile('\w', re.ASCII) + pat = re.compile(r'\w', re.ASCII) self.assertIsNone(pat.match('\xe0')) - pat = re.compile('(?a)\w') + pat = re.compile(r'(?a)\w') self.assertIsNone(pat.match('\xe0')) # Bytes patterns for flags in (0, re.ASCII): pat = re.compile(b'\xc0', flags | re.IGNORECASE) self.assertIsNone(pat.match(b'\xe0')) - pat = re.compile(b'\w', flags) + pat = re.compile(br'\w', flags) self.assertIsNone(pat.match(b'\xe0')) # 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') + self.assertRaises(ValueError, re.compile, br'\w', re.UNICODE) + self.assertRaises(ValueError, re.compile, br'(?u)\w') + self.assertRaises(ValueError, re.compile, r'\w', re.UNICODE | re.ASCII) + self.assertRaises(ValueError, re.compile, r'(?u)\w', re.ASCII) + self.assertRaises(ValueError, re.compile, r'(?a)\w', re.UNICODE) + self.assertRaises(ValueError, re.compile, r'(?au)\w') def test_locale_flag(self): import locale @@ -1359,13 +1359,13 @@ class ReTests(unittest.TestCase): pat = re.compile(bpat, re.IGNORECASE) if bletter: self.assertIsNone(pat.match(bletter)) - pat = re.compile(b'\w', re.LOCALE) + pat = re.compile(br'\w', re.LOCALE) if bletter: self.assertTrue(pat.match(bletter)) - pat = re.compile(b'(?L)\w') + pat = re.compile(br'(?L)\w') if bletter: self.assertTrue(pat.match(bletter)) - pat = re.compile(b'\w') + pat = re.compile(br'\w') if bletter: self.assertIsNone(pat.match(bletter)) # Incompatibilities @@ -1379,7 +1379,7 @@ class ReTests(unittest.TestCase): def test_bug_6509(self): # Replacement strings of both types must parse properly. # all strings - pat = re.compile('a(\w)') + pat = re.compile(r'a(\w)') self.assertEqual(pat.sub('b\\1', 'ac'), 'bc') pat = re.compile('a(.)') self.assertEqual(pat.sub('b\\1', 'a\u1234'), 'b\u1234') @@ -1387,7 +1387,7 @@ class ReTests(unittest.TestCase): self.assertEqual(pat.sub(lambda m: 'str', 'a5'), 'str') # all bytes - pat = re.compile(b'a(\w)') + pat = re.compile(br'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') @@ -1509,7 +1509,7 @@ class ReTests(unittest.TestCase): for string in (b'[abracadabra]', B(b'[abracadabra]'), bytearray(b'[abracadabra]'), memoryview(b'[abracadabra]')): - m = re.search(rb'(.+)(.*?)\1', string) + m = re.search(br'(.+)(.*?)\1', string) self.assertEqual(repr(m), "<%s.%s object; " "span=(1, 12), match=b'abracadabra'>" % (type(m).__module__, type(m).__qualname__)) |