re_tests.py 31 KB
Newer Older
Guido van Rossum's avatar
Guido van Rossum committed
1 2 3
#!/usr/bin/env python
# -*- mode: python -*-

Guido van Rossum's avatar
Guido van Rossum committed
4
# Re test suite and benchmark suite v1.5
Guido van Rossum's avatar
Guido van Rossum committed
5 6 7 8 9 10 11

# The 3 possible outcomes for each pattern
[SUCCEED, FAIL, SYNTAX_ERROR] = range(3)

# Benchmark suite (needs expansion)
#
# The benchmark suite does not test correctness, just speed.  The
12
# first element of each tuple is the regex pattern; the second is a
Guido van Rossum's avatar
Guido van Rossum committed
13
# string to match it against.  The benchmarking code will embed the
14
# second string inside several sizes of padding, to test how regex
Guido van Rossum's avatar
Guido van Rossum committed
15 16 17
# matching performs on large strings.

benchmarks = [
18 19 20 21 22 23 24 25 26 27 28 29

    # test common prefix
    ('Python|Perl', 'Perl'),    # Alternation
    ('(Python|Perl)', 'Perl'),  # Grouped alternation

    ('Python|Perl|Tcl', 'Perl'),        # Alternation
    ('(Python|Perl|Tcl)', 'Perl'),      # Grouped alternation

    ('(Python)\\1', 'PythonPython'),    # Backreference
    ('([0a-z][a-z0-9]*,)+', 'a5,b7,c9,'), # Disable the fastmap optimization
    ('([a-z][a-z0-9]*,)+', 'a5,b7,c9,'), # A few sets

30 31 32 33 34
    ('Python', 'Python'),               # Simple text literal
    ('.*Python', 'Python'),             # Bad text literal
    ('.*Python.*', 'Python'),           # Worse text literal
    ('.*(Python)', 'Python'),           # Bad text literal with grouping

Guido van Rossum's avatar
Guido van Rossum committed
35 36 37 38 39 40 41 42 43 44 45 46
]

# Test suite (for verifying correctness)
#
# The test suite is a list of 5- or 3-tuples.  The 5 parts of a
# complete tuple are:
# element 0: a string containing the pattern
#         1: the string to match against the pattern
#         2: the expected result (SUCCEED, FAIL, SYNTAX_ERROR)
#         3: a string that will be eval()'ed to produce a test string.
#            This is an arbitrary Python expression; the available
#            variables are "found" (the whole match), and "g1", "g2", ...
47 48 49 50
#            up to "g99" contain the contents of each group, or the
#            string 'None' if the group wasn't given a value, or the
#            string 'Error' if the group index was out of range;
#            also "groups", the return value of m.group() (a tuple).
Guido van Rossum's avatar
Guido van Rossum committed
51 52 53 54 55
#         4: The expected result of evaluating the expression.
#            If the two don't match, an error is reported.
#
# If the regex isn't expected to work, the latter two elements can be omitted.

56
tests = [
57 58 59 60 61 62 63 64 65 66 67 68 69 70
    # Test ?P< and ?P= extensions
    ('(?P<foo_123', '', SYNTAX_ERROR),      # Unterminated group identifier
    ('(?P<1>a)', '', SYNTAX_ERROR),         # Begins with a digit
    ('(?P<!>a)', '', SYNTAX_ERROR),         # Begins with an illegal char
    ('(?P<foo!>a)', '', SYNTAX_ERROR),      # Begins with an illegal char

    # Same tests, for the ?P= form
    ('(?P<foo_123>a)(?P=foo_123', 'aa', SYNTAX_ERROR),
    ('(?P<foo_123>a)(?P=1)', 'aa', SYNTAX_ERROR),
    ('(?P<foo_123>a)(?P=!)', 'aa', SYNTAX_ERROR),
    ('(?P<foo_123>a)(?P=foo_124', 'aa', SYNTAX_ERROR),  # Backref to undefined group

    ('(?P<foo_123>a)', 'a', SUCCEED, 'g1', 'a'),
    ('(?P<foo_123>a)(?P=foo_123)', 'aa', SUCCEED, 'g1', 'a'),
Guido van Rossum's avatar
Guido van Rossum committed
71

72
    # Test octal escapes
Guido van Rossum's avatar
Guido van Rossum committed
73 74
    ('\\1', 'a', SYNTAX_ERROR),    # Backreference
    ('[\\1]', '\1', SUCCEED, 'found', '\1'),  # Character
75 76 77 78
    ('\\09', chr(0) + '9', SUCCEED, 'found', chr(0) + '9'),
    ('\\141', 'a', SUCCEED, 'found', 'a'),
    ('(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)\\119', 'abcdefghijklk9', SUCCEED, 'found+"-"+g11', 'abcdefghijklk9-k'),

Guido van Rossum's avatar
Guido van Rossum committed
79
    # Test \0 is handled everywhere
80 81 82 83
    (r'\0', '\0', SUCCEED, 'found', '\0'),
    (r'[\0a]', '\0', SUCCEED, 'found', '\0'),
    (r'[a\0]', '\0', SUCCEED, 'found', '\0'),
    (r'[^a\0]', '\0', FAIL),
84

85 86 87
    # Test various letter escapes
    (r'\a[\b]\f\n\r\t\v', '\a\b\f\n\r\t\v', SUCCEED, 'found', '\a\b\f\n\r\t\v'),
    (r'[\a][\b][\f][\n][\r][\t][\v]', '\a\b\f\n\r\t\v', SUCCEED, 'found', '\a\b\f\n\r\t\v'),
88 89
    # NOTE: not an error under PCRE/PRE:
    # (r'\u', '', SYNTAX_ERROR),    # A Perl escape
90 91
    (r'\c\e\g\h\i\j\k\m\o\p\q\y\z', 'ceghijkmopqyz', SUCCEED, 'found', 'ceghijkmopqyz'),
    (r'\xff', '\377', SUCCEED, 'found', chr(255)),
92 93 94 95 96 97 98
    # new \x semantics
    (r'\x00ffffffffffffff', '\377', FAIL, 'found', chr(255)),
    (r'\x00f', '\017', FAIL, 'found', chr(15)),
    (r'\x00fe', '\376', FAIL, 'found', chr(254)),
    # (r'\x00ffffffffffffff', '\377', SUCCEED, 'found', chr(255)),
    # (r'\x00f', '\017', SUCCEED, 'found', chr(15)),
    # (r'\x00fe', '\376', SUCCEED, 'found', chr(254)),
99

100
    (r"^\w+=(\\[\000-\277]|[^\n\\])*", "SRC=eval.c g.c blah blah blah \\\\\n\tapes.c",
101
     SUCCEED, 'found', "SRC=eval.c g.c blah blah blah \\\\"),
102

103 104 105 106 107 108 109 110 111 112 113
    # Test that . only matches \n in DOTALL mode
    ('a.b', 'acb', SUCCEED, 'found', 'acb'),
    ('a.b', 'a\nb', FAIL),
    ('a.*b', 'acc\nccb', FAIL),
    ('a.{4,5}b', 'acc\nccb', FAIL),
    ('a.b', 'a\rb', SUCCEED, 'found', 'a\rb'),
    ('a.b(?s)', 'a\nb', SUCCEED, 'found', 'a\nb'),
    ('a.*(?s)b', 'acc\nccb', SUCCEED, 'found', 'acc\nccb'),
    ('(?s)a.{4,5}b', 'acc\nccb', SUCCEED, 'found', 'acc\nccb'),
    ('(?s)a.b', 'a\nb', SUCCEED, 'found', 'a\nb'),

Guido van Rossum's avatar
Guido van Rossum committed
114 115
    (')', '', SYNTAX_ERROR),           # Unmatched right bracket
    ('', '', SUCCEED, 'found', ''),    # Empty pattern
Guido van Rossum's avatar
Guido van Rossum committed
116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149
    ('abc', 'abc', SUCCEED, 'found', 'abc'),
    ('abc', 'xbc', FAIL),
    ('abc', 'axc', FAIL),
    ('abc', 'abx', FAIL),
    ('abc', 'xabcy', SUCCEED, 'found', 'abc'),
    ('abc', 'ababc', SUCCEED, 'found', 'abc'),
    ('ab*c', 'abc', SUCCEED, 'found', 'abc'),
    ('ab*bc', 'abc', SUCCEED, 'found', 'abc'),
    ('ab*bc', 'abbc', SUCCEED, 'found', 'abbc'),
    ('ab*bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
    ('ab+bc', 'abbc', SUCCEED, 'found', 'abbc'),
    ('ab+bc', 'abc', FAIL),
    ('ab+bc', 'abq', FAIL),
    ('ab+bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
    ('ab?bc', 'abbc', SUCCEED, 'found', 'abbc'),
    ('ab?bc', 'abc', SUCCEED, 'found', 'abc'),
    ('ab?bc', 'abbbbc', FAIL),
    ('ab?c', 'abc', SUCCEED, 'found', 'abc'),
    ('^abc$', 'abc', SUCCEED, 'found', 'abc'),
    ('^abc$', 'abcc', FAIL),
    ('^abc', 'abcc', SUCCEED, 'found', 'abc'),
    ('^abc$', 'aabc', FAIL),
    ('abc$', 'aabc', SUCCEED, 'found', 'abc'),
    ('^', 'abc', SUCCEED, 'found+"-"', '-'),
    ('$', 'abc', SUCCEED, 'found+"-"', '-'),
    ('a.c', 'abc', SUCCEED, 'found', 'abc'),
    ('a.c', 'axc', SUCCEED, 'found', 'axc'),
    ('a.*c', 'axyzc', SUCCEED, 'found', 'axyzc'),
    ('a.*c', 'axyzd', FAIL),
    ('a[bc]d', 'abc', FAIL),
    ('a[bc]d', 'abd', SUCCEED, 'found', 'abd'),
    ('a[b-d]e', 'abd', FAIL),
    ('a[b-d]e', 'ace', SUCCEED, 'found', 'ace'),
    ('a[b-d]', 'aac', SUCCEED, 'found', 'ac'),
150
    ('a[-b]', 'a-', SUCCEED, 'found', 'a-'),
Guido van Rossum's avatar
Guido van Rossum committed
151
    ('a[\\-b]', 'a-', SUCCEED, 'found', 'a-'),
152 153
    # NOTE: not an error under PCRE/PRE:
    # ('a[b-]', 'a-', SYNTAX_ERROR),
Guido van Rossum's avatar
Guido van Rossum committed
154 155 156 157 158 159
    ('a[]b', '-', SYNTAX_ERROR),
    ('a[', '-', SYNTAX_ERROR),
    ('a\\', '-', SYNTAX_ERROR),
    ('abc)', '-', SYNTAX_ERROR),
    ('(abc', '-', SYNTAX_ERROR),
    ('a]', 'a]', SUCCEED, 'found', 'a]'),
160
    ('a[]]b', 'a]b', SUCCEED, 'found', 'a]b'),
Guido van Rossum's avatar
Guido van Rossum committed
161 162 163
    ('a[\]]b', 'a]b', SUCCEED, 'found', 'a]b'),
    ('a[^bc]d', 'aed', SUCCEED, 'found', 'aed'),
    ('a[^bc]d', 'abd', FAIL),
164 165 166 167
    ('a[^-b]c', 'adc', SUCCEED, 'found', 'adc'),
    ('a[^-b]c', 'a-c', FAIL),
    ('a[^]b]c', 'a]c', FAIL),
    ('a[^]b]c', 'adc', SUCCEED, 'found', 'adc'),
Guido van Rossum's avatar
Guido van Rossum committed
168 169 170 171 172 173
    ('\\ba\\b', 'a-', SUCCEED, '"-"', '-'),
    ('\\ba\\b', '-a', SUCCEED, '"-"', '-'),
    ('\\ba\\b', '-a-', SUCCEED, '"-"', '-'),
    ('\\by\\b', 'xy', FAIL),
    ('\\by\\b', 'yz', FAIL),
    ('\\by\\b', 'xyz', FAIL),
174 175 176 177 178 179 180 181 182 183 184 185 186
    ('x\\b', 'xyz', FAIL),
    ('x\\B', 'xyz', SUCCEED, '"-"', '-'),
    ('\\Bz', 'xyz', SUCCEED, '"-"', '-'),
    ('z\\B', 'xyz', FAIL),
    ('\\Bx', 'xyz', FAIL),
    ('\\Ba\\B', 'a-', FAIL, '"-"', '-'),
    ('\\Ba\\B', '-a', FAIL, '"-"', '-'),
    ('\\Ba\\B', '-a-', FAIL, '"-"', '-'),
    ('\\By\\B', 'xy', FAIL),
    ('\\By\\B', 'yz', FAIL),
    ('\\By\\b', 'xy', SUCCEED, '"-"', '-'),
    ('\\by\\B', 'yz', SUCCEED, '"-"', '-'),
    ('\\By\\B', 'xyz', SUCCEED, '"-"', '-'),
Guido van Rossum's avatar
Guido van Rossum committed
187 188 189 190
    ('ab|cd', 'abc', SUCCEED, 'found', 'ab'),
    ('ab|cd', 'abcd', SUCCEED, 'found', 'ab'),
    ('()ef', 'def', SUCCEED, 'found+"-"+g1', 'ef-'),
    ('$b', 'b', FAIL),
191
    ('a\\(b', 'a(b', SUCCEED, 'found+"-"+g1', 'a(b-Error'),
Guido van Rossum's avatar
Guido van Rossum committed
192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211
    ('a\\(*b', 'ab', SUCCEED, 'found', 'ab'),
    ('a\\(*b', 'a((b', SUCCEED, 'found', 'a((b'),
    ('a\\\\b', 'a\\b', SUCCEED, 'found', 'a\\b'),
    ('((a))', 'abc', SUCCEED, 'found+"-"+g1+"-"+g2', 'a-a-a'),
    ('(a)b(c)', 'abc', SUCCEED, 'found+"-"+g1+"-"+g2', 'abc-a-c'),
    ('a+b+c', 'aabbabc', SUCCEED, 'found', 'abc'),
    ('(a+|b)*', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
    ('(a+|b)+', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
    ('(a+|b)?', 'ab', SUCCEED, 'found+"-"+g1', 'a-a'),
    (')(', '-', SYNTAX_ERROR),
    ('[^ab]*', 'cde', SUCCEED, 'found', 'cde'),
    ('abc', '', FAIL),
    ('a*', '', SUCCEED, 'found', ''),
    ('a|b|c|d|e', 'e', SUCCEED, 'found', 'e'),
    ('(a|b|c|d|e)f', 'ef', SUCCEED, 'found+"-"+g1', 'ef-e'),
    ('abcd*efg', 'abcdefg', SUCCEED, 'found', 'abcdefg'),
    ('ab*', 'xabyabbbz', SUCCEED, 'found', 'ab'),
    ('ab*', 'xayabbbz', SUCCEED, 'found', 'a'),
    ('(ab|cd)e', 'abcde', SUCCEED, 'found+"-"+g1', 'cde-cd'),
    ('[abhgefdc]ij', 'hij', SUCCEED, 'found', 'hij'),
212
    ('^(ab|cd)e', 'abcde', FAIL, 'xg1y', 'xy'),
Guido van Rossum's avatar
Guido van Rossum committed
213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277
    ('(abc|)ef', 'abcdef', SUCCEED, 'found+"-"+g1', 'ef-'),
    ('(a|b)c*d', 'abcd', SUCCEED, 'found+"-"+g1', 'bcd-b'),
    ('(ab|ab*)bc', 'abc', SUCCEED, 'found+"-"+g1', 'abc-a'),
    ('a([bc]*)c*', 'abc', SUCCEED, 'found+"-"+g1', 'abc-bc'),
    ('a([bc]*)(c*d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-bc-d'),
    ('a([bc]+)(c*d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-bc-d'),
    ('a([bc]*)(c+d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-b-cd'),
    ('a[bcd]*dcdcde', 'adcdcde', SUCCEED, 'found', 'adcdcde'),
    ('a[bcd]+dcdcde', 'adcdcde', FAIL),
    ('(ab|a)b*c', 'abc', SUCCEED, 'found+"-"+g1', 'abc-ab'),
    ('((a)(b)c)(d)', 'abcd', SUCCEED, 'g1+"-"+g2+"-"+g3+"-"+g4', 'abc-a-b-d'),
    ('[a-zA-Z_][a-zA-Z0-9_]*', 'alpha', SUCCEED, 'found', 'alpha'),
    ('^a(bc+|b[eh])g|.h$', 'abh', SUCCEED, 'found+"-"+g1', 'bh-None'),
    ('(bc+d$|ef*g.|h?i(j|k))', 'effgz', SUCCEED, 'found+"-"+g1+"-"+g2', 'effgz-effgz-None'),
    ('(bc+d$|ef*g.|h?i(j|k))', 'ij', SUCCEED, 'found+"-"+g1+"-"+g2', 'ij-ij-j'),
    ('(bc+d$|ef*g.|h?i(j|k))', 'effg', FAIL),
    ('(bc+d$|ef*g.|h?i(j|k))', 'bcdd', FAIL),
    ('(bc+d$|ef*g.|h?i(j|k))', 'reffgz', SUCCEED, 'found+"-"+g1+"-"+g2', 'effgz-effgz-None'),
    ('(((((((((a)))))))))', 'a', SUCCEED, 'found', 'a'),
    ('multiple words of text', 'uh-uh', FAIL),
    ('multiple words', 'multiple words, yeah', SUCCEED, 'found', 'multiple words'),
    ('(.*)c(.*)', 'abcde', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcde-ab-de'),
    ('\\((.*), (.*)\\)', '(a, b)', SUCCEED, 'g2+"-"+g1', 'b-a'),
    ('[k]', 'ab', FAIL),
    ('a[-]?c', 'ac', SUCCEED, 'found', 'ac'),
    ('(abc)\\1', 'abcabc', SUCCEED, 'g1', 'abc'),
    ('([a-c]*)\\1', 'abcabc', SUCCEED, 'g1', 'abc'),
    ('^(.+)?B', 'AB', SUCCEED, 'g1', 'A'),
    ('(a+).\\1$', 'aaaaa', SUCCEED, 'found+"-"+g1', 'aaaaa-aa'),
    ('^(a+).\\1$', 'aaaa', FAIL),
    ('(abc)\\1', 'abcabc', SUCCEED, 'found+"-"+g1', 'abcabc-abc'),
    ('([a-c]+)\\1', 'abcabc', SUCCEED, 'found+"-"+g1', 'abcabc-abc'),
    ('(a)\\1', 'aa', SUCCEED, 'found+"-"+g1', 'aa-a'),
    ('(a+)\\1', 'aa', SUCCEED, 'found+"-"+g1', 'aa-a'),
    ('(a+)+\\1', 'aa', SUCCEED, 'found+"-"+g1', 'aa-a'),
    ('(a).+\\1', 'aba', SUCCEED, 'found+"-"+g1', 'aba-a'),
    ('(a)ba*\\1', 'aba', SUCCEED, 'found+"-"+g1', 'aba-a'),
    ('(aa|a)a\\1$', 'aaa', SUCCEED, 'found+"-"+g1', 'aaa-a'),
    ('(a|aa)a\\1$', 'aaa', SUCCEED, 'found+"-"+g1', 'aaa-a'),
    ('(a+)a\\1$', 'aaa', SUCCEED, 'found+"-"+g1', 'aaa-a'),
    ('([abc]*)\\1', 'abcabc', SUCCEED, 'found+"-"+g1', 'abcabc-abc'),
    ('(a)(b)c|ab', 'ab', SUCCEED, 'found+"-"+g1+"-"+g2', 'ab-None-None'),
    ('(a)+x', 'aaax', SUCCEED, 'found+"-"+g1', 'aaax-a'),
    ('([ac])+x', 'aacx', SUCCEED, 'found+"-"+g1', 'aacx-c'),
    ('([^/]*/)*sub1/', 'd:msgs/tdir/sub1/trial/away.cpp', SUCCEED, 'found+"-"+g1', 'd:msgs/tdir/sub1/-tdir/'),
    ('([^.]*)\\.([^:]*):[T ]+(.*)', 'track1.title:TBlah blah blah', SUCCEED, 'found+"-"+g1+"-"+g2+"-"+g3', 'track1.title:TBlah blah blah-track1-title-Blah blah blah'),
    ('([^N]*N)+', 'abNNxyzN', SUCCEED, 'found+"-"+g1', 'abNNxyzN-xyzN'),
    ('([^N]*N)+', 'abNNxyz', SUCCEED, 'found+"-"+g1', 'abNN-N'),
    ('([abc]*)x', 'abcx', SUCCEED, 'found+"-"+g1', 'abcx-abc'),
    ('([abc]*)x', 'abc', FAIL),
    ('([xyz]*)x', 'abcx', SUCCEED, 'found+"-"+g1', 'x-'),
    ('(a)+b|aac', 'aac', SUCCEED, 'found+"-"+g1', 'aac-None'),

    # Test symbolic groups

    ('(?P<i d>aaa)a', 'aaaa', SYNTAX_ERROR),
    ('(?P<id>aaa)a', 'aaaa', SUCCEED, 'found+"-"+id', 'aaaa-aaa'),
    ('(?P<id>aa)(?P=id)', 'aaaa', SUCCEED, 'found+"-"+id', 'aaaa-aa'),
    ('(?P<id>aa)(?P=xd)', 'aaaa', SYNTAX_ERROR),

    # Test octal escapes/memory references

    ('\\1', 'a', SYNTAX_ERROR),
    ('\\09', chr(0) + '9', SUCCEED, 'found', chr(0) + '9'),
    ('\\141', 'a', SUCCEED, 'found', 'a'),
278
    ('(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)\\119', 'abcdefghijklk9', SUCCEED, 'found+"-"+g11', 'abcdefghijklk9-k'),
279

280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343
    # All tests from Perl

    ('abc', 'abc', SUCCEED, 'found', 'abc'),
    ('abc', 'xbc', FAIL),
    ('abc', 'axc', FAIL),
    ('abc', 'abx', FAIL),
    ('abc', 'xabcy', SUCCEED, 'found', 'abc'),
    ('abc', 'ababc', SUCCEED, 'found', 'abc'),
    ('ab*c', 'abc', SUCCEED, 'found', 'abc'),
    ('ab*bc', 'abc', SUCCEED, 'found', 'abc'),
    ('ab*bc', 'abbc', SUCCEED, 'found', 'abbc'),
    ('ab*bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
    ('ab{0,}bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
    ('ab+bc', 'abbc', SUCCEED, 'found', 'abbc'),
    ('ab+bc', 'abc', FAIL),
    ('ab+bc', 'abq', FAIL),
    ('ab{1,}bc', 'abq', FAIL),
    ('ab+bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
    ('ab{1,}bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
    ('ab{1,3}bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
    ('ab{3,4}bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
    ('ab{4,5}bc', 'abbbbc', FAIL),
    ('ab?bc', 'abbc', SUCCEED, 'found', 'abbc'),
    ('ab?bc', 'abc', SUCCEED, 'found', 'abc'),
    ('ab{0,1}bc', 'abc', SUCCEED, 'found', 'abc'),
    ('ab?bc', 'abbbbc', FAIL),
    ('ab?c', 'abc', SUCCEED, 'found', 'abc'),
    ('ab{0,1}c', 'abc', SUCCEED, 'found', 'abc'),
    ('^abc$', 'abc', SUCCEED, 'found', 'abc'),
    ('^abc$', 'abcc', FAIL),
    ('^abc', 'abcc', SUCCEED, 'found', 'abc'),
    ('^abc$', 'aabc', FAIL),
    ('abc$', 'aabc', SUCCEED, 'found', 'abc'),
    ('^', 'abc', SUCCEED, 'found', ''),
    ('$', 'abc', SUCCEED, 'found', ''),
    ('a.c', 'abc', SUCCEED, 'found', 'abc'),
    ('a.c', 'axc', SUCCEED, 'found', 'axc'),
    ('a.*c', 'axyzc', SUCCEED, 'found', 'axyzc'),
    ('a.*c', 'axyzd', FAIL),
    ('a[bc]d', 'abc', FAIL),
    ('a[bc]d', 'abd', SUCCEED, 'found', 'abd'),
    ('a[b-d]e', 'abd', FAIL),
    ('a[b-d]e', 'ace', SUCCEED, 'found', 'ace'),
    ('a[b-d]', 'aac', SUCCEED, 'found', 'ac'),
    ('a[-b]', 'a-', SUCCEED, 'found', 'a-'),
    ('a[b-]', 'a-', SUCCEED, 'found', 'a-'),
    ('a[b-a]', '-', SYNTAX_ERROR),
    ('a[]b', '-', SYNTAX_ERROR),
    ('a[', '-', SYNTAX_ERROR),
    ('a]', 'a]', SUCCEED, 'found', 'a]'),
    ('a[]]b', 'a]b', SUCCEED, 'found', 'a]b'),
    ('a[^bc]d', 'aed', SUCCEED, 'found', 'aed'),
    ('a[^bc]d', 'abd', FAIL),
    ('a[^-b]c', 'adc', SUCCEED, 'found', 'adc'),
    ('a[^-b]c', 'a-c', FAIL),
    ('a[^]b]c', 'a]c', FAIL),
    ('a[^]b]c', 'adc', SUCCEED, 'found', 'adc'),
    ('ab|cd', 'abc', SUCCEED, 'found', 'ab'),
    ('ab|cd', 'abcd', SUCCEED, 'found', 'ab'),
    ('()ef', 'def', SUCCEED, 'found+"-"+g1', 'ef-'),
    ('*a', '-', SYNTAX_ERROR),
    ('(*)b', '-', SYNTAX_ERROR),
    ('$b', 'b', FAIL),
    ('a\\', '-', SYNTAX_ERROR),
344
    ('a\\(b', 'a(b', SUCCEED, 'found+"-"+g1', 'a(b-Error'),
345 346 347 348 349 350 351 352 353
    ('a\\(*b', 'ab', SUCCEED, 'found', 'ab'),
    ('a\\(*b', 'a((b', SUCCEED, 'found', 'a((b'),
    ('a\\\\b', 'a\\b', SUCCEED, 'found', 'a\\b'),
    ('abc)', '-', SYNTAX_ERROR),
    ('(abc', '-', SYNTAX_ERROR),
    ('((a))', 'abc', SUCCEED, 'found+"-"+g1+"-"+g2', 'a-a-a'),
    ('(a)b(c)', 'abc', SUCCEED, 'found+"-"+g1+"-"+g2', 'abc-a-c'),
    ('a+b+c', 'aabbabc', SUCCEED, 'found', 'abc'),
    ('a{1,}b{1,}c', 'aabbabc', SUCCEED, 'found', 'abc'),
354
    ('a**', '-', SYNTAX_ERROR),
355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387
    ('a.+?c', 'abcabc', SUCCEED, 'found', 'abc'),
    ('(a+|b)*', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
    ('(a+|b){0,}', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
    ('(a+|b)+', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
    ('(a+|b){1,}', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
    ('(a+|b)?', 'ab', SUCCEED, 'found+"-"+g1', 'a-a'),
    ('(a+|b){0,1}', 'ab', SUCCEED, 'found+"-"+g1', 'a-a'),
    (')(', '-', SYNTAX_ERROR),
    ('[^ab]*', 'cde', SUCCEED, 'found', 'cde'),
    ('abc', '', FAIL),
    ('a*', '', SUCCEED, 'found', ''),
    ('([abc])*d', 'abbbcd', SUCCEED, 'found+"-"+g1', 'abbbcd-c'),
    ('([abc])*bcd', 'abcd', SUCCEED, 'found+"-"+g1', 'abcd-a'),
    ('a|b|c|d|e', 'e', SUCCEED, 'found', 'e'),
    ('(a|b|c|d|e)f', 'ef', SUCCEED, 'found+"-"+g1', 'ef-e'),
    ('abcd*efg', 'abcdefg', SUCCEED, 'found', 'abcdefg'),
    ('ab*', 'xabyabbbz', SUCCEED, 'found', 'ab'),
    ('ab*', 'xayabbbz', SUCCEED, 'found', 'a'),
    ('(ab|cd)e', 'abcde', SUCCEED, 'found+"-"+g1', 'cde-cd'),
    ('[abhgefdc]ij', 'hij', SUCCEED, 'found', 'hij'),
    ('^(ab|cd)e', 'abcde', FAIL),
    ('(abc|)ef', 'abcdef', SUCCEED, 'found+"-"+g1', 'ef-'),
    ('(a|b)c*d', 'abcd', SUCCEED, 'found+"-"+g1', 'bcd-b'),
    ('(ab|ab*)bc', 'abc', SUCCEED, 'found+"-"+g1', 'abc-a'),
    ('a([bc]*)c*', 'abc', SUCCEED, 'found+"-"+g1', 'abc-bc'),
    ('a([bc]*)(c*d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-bc-d'),
    ('a([bc]+)(c*d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-bc-d'),
    ('a([bc]*)(c+d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-b-cd'),
    ('a[bcd]*dcdcde', 'adcdcde', SUCCEED, 'found', 'adcdcde'),
    ('a[bcd]+dcdcde', 'adcdcde', FAIL),
    ('(ab|a)b*c', 'abc', SUCCEED, 'found+"-"+g1', 'abc-ab'),
    ('((a)(b)c)(d)', 'abcd', SUCCEED, 'g1+"-"+g2+"-"+g3+"-"+g4', 'abc-a-b-d'),
    ('[a-zA-Z_][a-zA-Z0-9_]*', 'alpha', SUCCEED, 'found', 'alpha'),
388 389
    ('^a(bc+|b[eh])g|.h$', 'abh', SUCCEED, 'found+"-"+g1', 'bh-None'),
    ('(bc+d$|ef*g.|h?i(j|k))', 'effgz', SUCCEED, 'found+"-"+g1+"-"+g2', 'effgz-effgz-None'),
390 391 392
    ('(bc+d$|ef*g.|h?i(j|k))', 'ij', SUCCEED, 'found+"-"+g1+"-"+g2', 'ij-ij-j'),
    ('(bc+d$|ef*g.|h?i(j|k))', 'effg', FAIL),
    ('(bc+d$|ef*g.|h?i(j|k))', 'bcdd', FAIL),
393
    ('(bc+d$|ef*g.|h?i(j|k))', 'reffgz', SUCCEED, 'found+"-"+g1+"-"+g2', 'effgz-effgz-None'),
394 395
    ('((((((((((a))))))))))', 'a', SUCCEED, 'g10', 'a'),
    ('((((((((((a))))))))))\\10', 'aa', SUCCEED, 'found', 'aa'),
396 397 398
# Python does not have the same rules for \\41 so this is a syntax error
#    ('((((((((((a))))))))))\\41', 'aa', FAIL),
#    ('((((((((((a))))))))))\\41', 'a!', SUCCEED, 'found', 'a!'),
399
    ('((((((((((a))))))))))\\41', '', SYNTAX_ERROR),
400
    ('(?i)((((((((((a))))))))))\\41', '', SYNTAX_ERROR),
401 402 403 404
    ('(((((((((a)))))))))', 'a', SUCCEED, 'found', 'a'),
    ('multiple words of text', 'uh-uh', FAIL),
    ('multiple words', 'multiple words, yeah', SUCCEED, 'found', 'multiple words'),
    ('(.*)c(.*)', 'abcde', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcde-ab-de'),
405
    ('\\((.*), (.*)\\)', '(a, b)', SUCCEED, 'g2+"-"+g1', 'b-a'),
406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471
    ('[k]', 'ab', FAIL),
    ('a[-]?c', 'ac', SUCCEED, 'found', 'ac'),
    ('(abc)\\1', 'abcabc', SUCCEED, 'g1', 'abc'),
    ('([a-c]*)\\1', 'abcabc', SUCCEED, 'g1', 'abc'),
    ('(?i)abc', 'ABC', SUCCEED, 'found', 'ABC'),
    ('(?i)abc', 'XBC', FAIL),
    ('(?i)abc', 'AXC', FAIL),
    ('(?i)abc', 'ABX', FAIL),
    ('(?i)abc', 'XABCY', SUCCEED, 'found', 'ABC'),
    ('(?i)abc', 'ABABC', SUCCEED, 'found', 'ABC'),
    ('(?i)ab*c', 'ABC', SUCCEED, 'found', 'ABC'),
    ('(?i)ab*bc', 'ABC', SUCCEED, 'found', 'ABC'),
    ('(?i)ab*bc', 'ABBC', SUCCEED, 'found', 'ABBC'),
    ('(?i)ab*?bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
    ('(?i)ab{0,}?bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
    ('(?i)ab+?bc', 'ABBC', SUCCEED, 'found', 'ABBC'),
    ('(?i)ab+bc', 'ABC', FAIL),
    ('(?i)ab+bc', 'ABQ', FAIL),
    ('(?i)ab{1,}bc', 'ABQ', FAIL),
    ('(?i)ab+bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
    ('(?i)ab{1,}?bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
    ('(?i)ab{1,3}?bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
    ('(?i)ab{3,4}?bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
    ('(?i)ab{4,5}?bc', 'ABBBBC', FAIL),
    ('(?i)ab??bc', 'ABBC', SUCCEED, 'found', 'ABBC'),
    ('(?i)ab??bc', 'ABC', SUCCEED, 'found', 'ABC'),
    ('(?i)ab{0,1}?bc', 'ABC', SUCCEED, 'found', 'ABC'),
    ('(?i)ab??bc', 'ABBBBC', FAIL),
    ('(?i)ab??c', 'ABC', SUCCEED, 'found', 'ABC'),
    ('(?i)ab{0,1}?c', 'ABC', SUCCEED, 'found', 'ABC'),
    ('(?i)^abc$', 'ABC', SUCCEED, 'found', 'ABC'),
    ('(?i)^abc$', 'ABCC', FAIL),
    ('(?i)^abc', 'ABCC', SUCCEED, 'found', 'ABC'),
    ('(?i)^abc$', 'AABC', FAIL),
    ('(?i)abc$', 'AABC', SUCCEED, 'found', 'ABC'),
    ('(?i)^', 'ABC', SUCCEED, 'found', ''),
    ('(?i)$', 'ABC', SUCCEED, 'found', ''),
    ('(?i)a.c', 'ABC', SUCCEED, 'found', 'ABC'),
    ('(?i)a.c', 'AXC', SUCCEED, 'found', 'AXC'),
    ('(?i)a.*?c', 'AXYZC', SUCCEED, 'found', 'AXYZC'),
    ('(?i)a.*c', 'AXYZD', FAIL),
    ('(?i)a[bc]d', 'ABC', FAIL),
    ('(?i)a[bc]d', 'ABD', SUCCEED, 'found', 'ABD'),
    ('(?i)a[b-d]e', 'ABD', FAIL),
    ('(?i)a[b-d]e', 'ACE', SUCCEED, 'found', 'ACE'),
    ('(?i)a[b-d]', 'AAC', SUCCEED, 'found', 'AC'),
    ('(?i)a[-b]', 'A-', SUCCEED, 'found', 'A-'),
    ('(?i)a[b-]', 'A-', SUCCEED, 'found', 'A-'),
    ('(?i)a[b-a]', '-', SYNTAX_ERROR),
    ('(?i)a[]b', '-', SYNTAX_ERROR),
    ('(?i)a[', '-', SYNTAX_ERROR),
    ('(?i)a]', 'A]', SUCCEED, 'found', 'A]'),
    ('(?i)a[]]b', 'A]B', SUCCEED, 'found', 'A]B'),
    ('(?i)a[^bc]d', 'AED', SUCCEED, 'found', 'AED'),
    ('(?i)a[^bc]d', 'ABD', FAIL),
    ('(?i)a[^-b]c', 'ADC', SUCCEED, 'found', 'ADC'),
    ('(?i)a[^-b]c', 'A-C', FAIL),
    ('(?i)a[^]b]c', 'A]C', FAIL),
    ('(?i)a[^]b]c', 'ADC', SUCCEED, 'found', 'ADC'),
    ('(?i)ab|cd', 'ABC', SUCCEED, 'found', 'AB'),
    ('(?i)ab|cd', 'ABCD', SUCCEED, 'found', 'AB'),
    ('(?i)()ef', 'DEF', SUCCEED, 'found+"-"+g1', 'EF-'),
    ('(?i)*a', '-', SYNTAX_ERROR),
    ('(?i)(*)b', '-', SYNTAX_ERROR),
    ('(?i)$b', 'B', FAIL),
    ('(?i)a\\', '-', SYNTAX_ERROR),
472
    ('(?i)a\\(b', 'A(B', SUCCEED, 'found+"-"+g1', 'A(B-Error'),
473 474 475 476 477 478 479 480 481
    ('(?i)a\\(*b', 'AB', SUCCEED, 'found', 'AB'),
    ('(?i)a\\(*b', 'A((B', SUCCEED, 'found', 'A((B'),
    ('(?i)a\\\\b', 'A\\B', SUCCEED, 'found', 'A\\B'),
    ('(?i)abc)', '-', SYNTAX_ERROR),
    ('(?i)(abc', '-', SYNTAX_ERROR),
    ('(?i)((a))', 'ABC', SUCCEED, 'found+"-"+g1+"-"+g2', 'A-A-A'),
    ('(?i)(a)b(c)', 'ABC', SUCCEED, 'found+"-"+g1+"-"+g2', 'ABC-A-C'),
    ('(?i)a+b+c', 'AABBABC', SUCCEED, 'found', 'ABC'),
    ('(?i)a{1,}b{1,}c', 'AABBABC', SUCCEED, 'found', 'ABC'),
482
    ('(?i)a**', '-', SYNTAX_ERROR),
483 484 485 486 487 488 489 490 491
    ('(?i)a.+?c', 'ABCABC', SUCCEED, 'found', 'ABC'),
    ('(?i)a.*?c', 'ABCABC', SUCCEED, 'found', 'ABC'),
    ('(?i)a.{0,5}?c', 'ABCABC', SUCCEED, 'found', 'ABC'),
    ('(?i)(a+|b)*', 'AB', SUCCEED, 'found+"-"+g1', 'AB-B'),
    ('(?i)(a+|b){0,}', 'AB', SUCCEED, 'found+"-"+g1', 'AB-B'),
    ('(?i)(a+|b)+', 'AB', SUCCEED, 'found+"-"+g1', 'AB-B'),
    ('(?i)(a+|b){1,}', 'AB', SUCCEED, 'found+"-"+g1', 'AB-B'),
    ('(?i)(a+|b)?', 'AB', SUCCEED, 'found+"-"+g1', 'A-A'),
    ('(?i)(a+|b){0,1}', 'AB', SUCCEED, 'found+"-"+g1', 'A-A'),
492
    ('(?i)(a+|b){0,1}?', 'AB', SUCCEED, 'found+"-"+g1', '-None'),
493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518
    ('(?i))(', '-', SYNTAX_ERROR),
    ('(?i)[^ab]*', 'CDE', SUCCEED, 'found', 'CDE'),
    ('(?i)abc', '', FAIL),
    ('(?i)a*', '', SUCCEED, 'found', ''),
    ('(?i)([abc])*d', 'ABBBCD', SUCCEED, 'found+"-"+g1', 'ABBBCD-C'),
    ('(?i)([abc])*bcd', 'ABCD', SUCCEED, 'found+"-"+g1', 'ABCD-A'),
    ('(?i)a|b|c|d|e', 'E', SUCCEED, 'found', 'E'),
    ('(?i)(a|b|c|d|e)f', 'EF', SUCCEED, 'found+"-"+g1', 'EF-E'),
    ('(?i)abcd*efg', 'ABCDEFG', SUCCEED, 'found', 'ABCDEFG'),
    ('(?i)ab*', 'XABYABBBZ', SUCCEED, 'found', 'AB'),
    ('(?i)ab*', 'XAYABBBZ', SUCCEED, 'found', 'A'),
    ('(?i)(ab|cd)e', 'ABCDE', SUCCEED, 'found+"-"+g1', 'CDE-CD'),
    ('(?i)[abhgefdc]ij', 'HIJ', SUCCEED, 'found', 'HIJ'),
    ('(?i)^(ab|cd)e', 'ABCDE', FAIL),
    ('(?i)(abc|)ef', 'ABCDEF', SUCCEED, 'found+"-"+g1', 'EF-'),
    ('(?i)(a|b)c*d', 'ABCD', SUCCEED, 'found+"-"+g1', 'BCD-B'),
    ('(?i)(ab|ab*)bc', 'ABC', SUCCEED, 'found+"-"+g1', 'ABC-A'),
    ('(?i)a([bc]*)c*', 'ABC', SUCCEED, 'found+"-"+g1', 'ABC-BC'),
    ('(?i)a([bc]*)(c*d)', 'ABCD', SUCCEED, 'found+"-"+g1+"-"+g2', 'ABCD-BC-D'),
    ('(?i)a([bc]+)(c*d)', 'ABCD', SUCCEED, 'found+"-"+g1+"-"+g2', 'ABCD-BC-D'),
    ('(?i)a([bc]*)(c+d)', 'ABCD', SUCCEED, 'found+"-"+g1+"-"+g2', 'ABCD-B-CD'),
    ('(?i)a[bcd]*dcdcde', 'ADCDCDE', SUCCEED, 'found', 'ADCDCDE'),
    ('(?i)a[bcd]+dcdcde', 'ADCDCDE', FAIL),
    ('(?i)(ab|a)b*c', 'ABC', SUCCEED, 'found+"-"+g1', 'ABC-AB'),
    ('(?i)((a)(b)c)(d)', 'ABCD', SUCCEED, 'g1+"-"+g2+"-"+g3+"-"+g4', 'ABC-A-B-D'),
    ('(?i)[a-zA-Z_][a-zA-Z0-9_]*', 'ALPHA', SUCCEED, 'found', 'ALPHA'),
519 520
    ('(?i)^a(bc+|b[eh])g|.h$', 'ABH', SUCCEED, 'found+"-"+g1', 'BH-None'),
    ('(?i)(bc+d$|ef*g.|h?i(j|k))', 'EFFGZ', SUCCEED, 'found+"-"+g1+"-"+g2', 'EFFGZ-EFFGZ-None'),
521 522 523
    ('(?i)(bc+d$|ef*g.|h?i(j|k))', 'IJ', SUCCEED, 'found+"-"+g1+"-"+g2', 'IJ-IJ-J'),
    ('(?i)(bc+d$|ef*g.|h?i(j|k))', 'EFFG', FAIL),
    ('(?i)(bc+d$|ef*g.|h?i(j|k))', 'BCDD', FAIL),
524
    ('(?i)(bc+d$|ef*g.|h?i(j|k))', 'REFFGZ', SUCCEED, 'found+"-"+g1+"-"+g2', 'EFFGZ-EFFGZ-None'),
525 526
    ('(?i)((((((((((a))))))))))', 'A', SUCCEED, 'g10', 'A'),
    ('(?i)((((((((((a))))))))))\\10', 'AA', SUCCEED, 'found', 'AA'),
527 528
    #('(?i)((((((((((a))))))))))\\41', 'AA', FAIL),
    #('(?i)((((((((((a))))))))))\\41', 'A!', SUCCEED, 'found', 'A!'),
529 530 531 532 533 534
    ('(?i)(((((((((a)))))))))', 'A', SUCCEED, 'found', 'A'),
    ('(?i)(?:(?:(?:(?:(?:(?:(?:(?:(?:(a))))))))))', 'A', SUCCEED, 'g1', 'A'),
    ('(?i)(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))', 'C', SUCCEED, 'g1', 'C'),
    ('(?i)multiple words of text', 'UH-UH', FAIL),
    ('(?i)multiple words', 'MULTIPLE WORDS, YEAH', SUCCEED, 'found', 'MULTIPLE WORDS'),
    ('(?i)(.*)c(.*)', 'ABCDE', SUCCEED, 'found+"-"+g1+"-"+g2', 'ABCDE-AB-DE'),
535
    ('(?i)\\((.*), (.*)\\)', '(A, B)', SUCCEED, 'g2+"-"+g1', 'B-A'),
536
    ('(?i)[k]', 'AB', FAIL),
537 538
#    ('(?i)abcd', 'ABCD', SUCCEED, 'found+"-"+\\found+"-"+\\\\found', 'ABCD-$&-\\ABCD'),
#    ('(?i)a(bc)d', 'ABCD', SUCCEED, 'g1+"-"+\\g1+"-"+\\\\g1', 'BC-$1-\\BC'),
539 540 541
    ('(?i)a[-]?c', 'AC', SUCCEED, 'found', 'AC'),
    ('(?i)(abc)\\1', 'ABCABC', SUCCEED, 'g1', 'ABC'),
    ('(?i)([a-c]*)\\1', 'ABCABC', SUCCEED, 'g1', 'ABC'),
542 543 544
    ('a(?!b).', 'abad', SUCCEED, 'found', 'ad'),
    ('a(?=d).', 'abad', SUCCEED, 'found', 'ad'),
    ('a(?=c|d).', 'abad', SUCCEED, 'found', 'ad'),
545 546 547
    ('a(?:b|c|d)(.)', 'ace', SUCCEED, 'g1', 'e'),
    ('a(?:b|c|d)*(.)', 'ace', SUCCEED, 'g1', 'e'),
    ('a(?:b|c|d)+?(.)', 'ace', SUCCEED, 'g1', 'e'),
548
    ('a(?:b|(c|e){1,2}?|d)+?(.)', 'ace', SUCCEED, 'g1 + g2', 'ce'),
549
    ('^(.+)?B', 'AB', SUCCEED, 'g1', 'A'),
550

551 552 553 554 555
    # lookbehind: split by : but not if it is escaped by -.
    ('(?<!-):(.*?)(?<!-):', 'a:bc-:de:f', SUCCEED, 'g1', 'bc-:de' ),
    # escaping with \ as we know it
    ('(?<!\\\):(.*?)(?<!\\\):', 'a:bc\\:de:f', SUCCEED, 'g1', 'bc\\:de' ),
    # terminating with ' and escaping with ? as in edifact
Tim Peters's avatar
Tim Peters committed
556
    ("(?<!\\?)'(.*?)(?<!\\?)'", "a'bc?'de'f", SUCCEED, 'g1', "bc?'de" ),
557

558 559 560 561
    # Comments using the (?#...) syntax

    ('w(?# comment', 'w', SYNTAX_ERROR),
    ('w(?# comment 1)xy(?# comment 2)z', 'wxyz', SUCCEED, 'found', 'wxyz'),
562 563 564

    # Check odd placement of embedded pattern modifiers

565 566 567
    # not an error under PCRE/PRE:
    ('w(?i)', 'W', SUCCEED, 'found', 'W'),
    # ('w(?i)', 'W', SYNTAX_ERROR),
568

569
    # Comments using the x embedded pattern modifier
570

571 572
    ("""(?x)w# comment 1
        x y
573 574
        # comment 2
        z""", 'wxyz', SUCCEED, 'found', 'wxyz'),
575 576 577 578 579 580 581 582 583 584

    # using the m embedded pattern modifier

    ('^abc', """jkl
abc
xyz""", FAIL),
    ('(?m)^abc', """jkl
abc
xyz""", SUCCEED, 'found', 'abc'),

585 586 587
    ('(?m)abc$', """jkl
xyzabc
123""", SUCCEED, 'found', 'abc'),
588

589 590 591 592
    # using the s embedded pattern modifier

    ('a.b', 'a\nb', FAIL),
    ('(?s)a.b', 'a\nb', SUCCEED, 'found', 'a\nb'),
593

594
    # test \w, etc. both inside and outside character classes
595 596

    ('\\w+', '--ab_cd0123--', SUCCEED, 'found', 'ab_cd0123'),
597
    ('[\\w]+', '--ab_cd0123--', SUCCEED, 'found', 'ab_cd0123'),
598
    ('\\D+', '1234abc5678', SUCCEED, 'found', 'abc'),
599
    ('[\\D]+', '1234abc5678', SUCCEED, 'found', 'abc'),
600
    ('[\\da-fA-F]+', '123abc', SUCCEED, 'found', '123abc'),
601 602
    # not an error under PCRE/PRE:
    # ('[\\d-x]', '-', SYNTAX_ERROR),
603 604 605 606
    (r'([\s]*)([\S]*)([\s]*)', ' testing!1972', SUCCEED, 'g3+g2+g1', 'testing!1972 '),
    (r'(\s*)(\S*)(\s*)', ' testing!1972', SUCCEED, 'g3+g2+g1', 'testing!1972 '),

    (r'\xff', '\377', SUCCEED, 'found', chr(255)),
607
    # new \x semantics
608
    (r'\x00ff', '\377', FAIL),
609
    # (r'\x00ff', '\377', SUCCEED, 'found', chr(255)),
610 611 612
    (r'\t\n\v\r\f\a\g', '\t\n\v\r\f\ag', SUCCEED, 'found', '\t\n\v\r\f\ag'),
    ('\t\n\v\r\f\a\g', '\t\n\v\r\f\ag', SUCCEED, 'found', '\t\n\v\r\f\ag'),
    (r'\t\n\v\r\f\a', '\t\n\v\r\f\a', SUCCEED, 'found', chr(9)+chr(10)+chr(11)+chr(13)+chr(12)+chr(7)),
613
    (r'[\t][\n][\v][\r][\f][\b]', '\t\n\v\r\f\b', SUCCEED, 'found', '\t\n\v\r\f\b'),
614

615 616
    #
    # post-1.5.2 additions
617 618 619

    # xmllib problem
    (r'(([a-z]+):)?([a-z]+)$', 'smil', SUCCEED, 'g1+"-"+g2+"-"+g3', 'None-None-smil'),
620 621 622
    # bug 110866: reference to undefined group
    (r'((.)\1+)', '', SYNTAX_ERROR),
    # bug 111869: search (PRE/PCRE fails on this one, SRE doesn't)
623
    (r'.*d', 'abc\nabd', SUCCEED, 'found', 'abd'),
624
    # bug 112468: various expected syntax errors
625 626
    (r'(', '', SYNTAX_ERROR),
    (r'[\41]', '!', SUCCEED, 'found', '!'),
627 628
    # bug 114033: nothing to repeat
    (r'(x?)?', 'x', SUCCEED, 'found', 'x'),
629 630 631
    # bug 115040: rescan if flags are modified inside pattern
    (r' (?x)foo ', 'foo', SUCCEED, 'found', 'foo'),
    # bug 115618: negative lookahead
632
    (r'(?<!abc)(d.f)', 'abcdefdof', SUCCEED, 'found', 'dof'),
633 634
    # bug 116251: character class bug
    (r'[\w-]+', 'laser_beam', SUCCEED, 'found', 'laser_beam'),
635 636 637 638 639 640 641 642 643 644 645
    # bug 123769+127259: non-greedy backtracking bug
    (r'.*?\S *:', 'xx:', SUCCEED, 'found', 'xx:'),
    (r'a[ ]*?\ (\d+).*', 'a   10', SUCCEED, 'found', 'a   10'),
    (r'a[ ]*?\ (\d+).*', 'a    10', SUCCEED, 'found', 'a    10'),
    # bug 127259: \Z shouldn't depend on multiline mode
    (r'(?ms).*?x\s*\Z(.*)','xx\nx\n', SUCCEED, 'g1', ''),
    # bug 128899: uppercase literals under the ignorecase flag
    (r'(?i)M+', 'MMM', SUCCEED, 'found', 'MMM'),
    (r'(?i)m+', 'MMM', SUCCEED, 'found', 'MMM'),
    (r'(?i)[M]+', 'MMM', SUCCEED, 'found', 'MMM'),
    (r'(?i)[m]+', 'MMM', SUCCEED, 'found', 'MMM'),
646 647
    # bug 130748: ^* should be an error (nothing to repeat)
    (r'^*', '', SYNTAX_ERROR),
648 649 650 651 652 653 654 655
    # bug 133283: minimizing repeat problem
    (r'"(?:\\"|[^"])*?"', r'"\""', SUCCEED, 'found', r'"\""'),
    # bug 477728: minimizing repeat problem
    (r'^.*?$', 'one\ntwo\nthree\n', FAIL),
    # bug 483789: minimizing repeat problem
    (r'a[^>]*?b', 'a>b', FAIL),
    # bug 490573: minimizing repeat problem
    (r'^a*?$', 'foo', FAIL),
656 657
    # bug 470582: nested groups problem
    (r'^((a)c)?(ab)$', 'ab', SUCCEED, 'g1+"-"+g2+"-"+g3', 'None-None-ab'),
658 659 660 661
    # another minimizing repeat problem (capturing groups in assertions)
    ('^([ab]*?)(?=(b)?)c', 'abc', SUCCEED, 'g1+"-"+g2', 'ab-None'),
    ('^([ab]*?)(?!(b))c', 'abc', SUCCEED, 'g1+"-"+g2', 'ab-None'),
    ('^([ab]*?)(?<!(a))c', 'abc', SUCCEED, 'g1+"-"+g2', 'ab-None'),
662
]
Fredrik Lundh's avatar
Fredrik Lundh committed
663

664 665
u = '\N{LATIN CAPITAL LETTER A WITH DIAERESIS}'
tests.extend([
Fredrik Lundh's avatar
Fredrik Lundh committed
666 667 668
    # bug 410271: \b broken under locales
    (r'\b.\b', 'a', SUCCEED, 'found', 'a'),
    (r'(?u)\b.\b', u, SUCCEED, 'found', u),
669
    (r'(?u)\w', u, SUCCEED, 'found', u),
670
])