Lib/test/re_tests.py

   1 #!/usr/bin/env python
   2 # -*- mode: python -*-
   3 # $Id$
   4
   5 # Re test suite and benchmark suite v1.5
   6
   7 # The 3 possible outcomes for each pattern
   8 [SUCCEED, FAIL, SYNTAX_ERROR] = range(3)
   9
  10 # Benchmark suite (needs expansion)
  11 #
  12 # The benchmark suite does not test correctness, just speed.  The
  13 # first element of each tuple is the regex pattern; the second is a
  14 # string to match it against.  The benchmarking code will embed the
  15 # second string inside several sizes of padding, to test how regex
  16 # matching performs on large strings.
  17
  18 benchmarks = [
  19     ('Python', 'Python'),               # Simple text literal
  20     ('.*Python', 'Python'),             # Bad text literal
  21     ('.*Python.*', 'Python'),           # Worse text literal
  22     ('.*(Python)', 'Python'),           # Bad text literal with grouping
  23
  24     ('(Python|Perl|Tcl', 'Perl'),       # Alternation
  25     ('(Python|Perl|Tcl)', 'Perl'),      # Grouped alternation
  26     ('(Python)\\1', 'PythonPython'),    # Backreference
  27     ('([0a-z][a-z]*,)+', 'a5,b7,c9,'),  # Disable the fastmap optimization
  28     ('([a-z][a-z0-9]*,)+', 'a5,b7,c9,') # A few sets
  29 ]
  30
  31 # Test suite (for verifying correctness)
  32 #
  33 # The test suite is a list of 5- or 3-tuples.  The 5 parts of a
  34 # complete tuple are:
  35 # element 0: a string containing the pattern
  36 #         1: the string to match against the pattern
  37 #         2: the expected result (SUCCEED, FAIL, SYNTAX_ERROR)
  38 #         3: a string that will be eval()'ed to produce a test string.
  39 #            This is an arbitrary Python expression; the available
  40 #            variables are "found" (the whole match), and "g1", "g2", ...
  41 #            up to "g99" contain the contents of each group, or the
  42 #            string 'None' if the group wasn't given a value, or the
  43 #            string 'Error' if the group index was out of range;
  44 #            also "groups", the return value of m.group() (a tuple).
  45 #         4: The expected result of evaluating the expression.
  46 #            If the two don't match, an error is reported.
  47 #
  48 # If the regex isn't expected to work, the latter two elements can be omitted.
  49
  50 tests = [
  51     # Test ?P< and ?P= extensions
  52     ('(?P<foo_123', '', SYNTAX_ERROR),      # Unterminated group identifier
  53     ('(?P<1>a)', '', SYNTAX_ERROR),         # Begins with a digit
  54     ('(?P<!>a)', '', SYNTAX_ERROR),         # Begins with an illegal char
  55     ('(?P<foo!>a)', '', SYNTAX_ERROR),      # Begins with an illegal char
  56
  57     # Same tests, for the ?P= form
  58     ('(?P<foo_123>a)(?P=foo_123', 'aa', SYNTAX_ERROR),
  59     ('(?P<foo_123>a)(?P=1)', 'aa', SYNTAX_ERROR),
  60     ('(?P<foo_123>a)(?P=!)', 'aa', SYNTAX_ERROR),
  61     ('(?P<foo_123>a)(?P=foo_124', 'aa', SYNTAX_ERROR),  # Backref to undefined group
  62
  63     ('(?P<foo_123>a)', 'a', SUCCEED, 'g1', 'a'),
  64     ('(?P<foo_123>a)(?P=foo_123)', 'aa', SUCCEED, 'g1', 'a'),
  65
  66     # Test octal escapes
  67     ('\\1', 'a', SYNTAX_ERROR),    # Backreference
  68     ('[\\1]', '\1', SUCCEED, 'found', '\1'),  # Character
  69     ('\\09', chr(0) + '9', SUCCEED, 'found', chr(0) + '9'),
  70     ('\\141', 'a', SUCCEED, 'found', 'a'),
  71     ('(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)\\119', 'abcdefghijklk9', SUCCEED, 'found+"-"+g11', 'abcdefghijklk9-k'),
  72
  73     # Test \0 is handled everywhere
  74     (r'\0', '\0', SUCCEED, 'found', '\0'),
  75     (r'[\0a]', '\0', SUCCEED, 'found', '\0'),
  76     (r'[a\0]', '\0', SUCCEED, 'found', '\0'),
  77     (r'[^a\0]', '\0', FAIL),
  78
  79     # Test various letter escapes
  80     (r'\a[\b]\f\n\r\t\v', '\a\b\f\n\r\t\v', SUCCEED, 'found', '\a\b\f\n\r\t\v'),
  81     (r'[\a][\b][\f][\n][\r][\t][\v]', '\a\b\f\n\r\t\v', SUCCEED, 'found', '\a\b\f\n\r\t\v'),
  82     (r'\u', '', SYNTAX_ERROR),    # A Perl escape
  83     (r'\c\e\g\h\i\j\k\m\o\p\q\y\z', 'ceghijkmopqyz', SUCCEED, 'found', 'ceghijkmopqyz'),
  84     (r'\xff', '\377', SUCCEED, 'found', chr(255)),
  85     (r'\x00ffffffffffffff', '\377', SUCCEED, 'found', chr(255)),
  86     (r'\x00f', '\017', SUCCEED, 'found', chr(15)),
  87     (r'\x00fe', '\376', SUCCEED, 'found', chr(254)),
  88
  89     (r"^\w+=(\\[\000-\277]|[^\n\\])*", "SRC=eval.c g.c blah blah blah \\\\\n\tapes.c",
  90      SUCCEED, 'found', "SRC=eval.c g.c blah blah blah \\\\"),
  91
  92     # Test that . only matches \n in DOTALL mode
  93     ('a.b', 'acb', SUCCEED, 'found', 'acb'),
  94     ('a.b', 'a\nb', FAIL),
  95     ('a.*b', 'acc\nccb', FAIL),
  96     ('a.{4,5}b', 'acc\nccb', FAIL),
  97     ('a.b', 'a\rb', SUCCEED, 'found', 'a\rb'),
  98     ('a.b(?s)', 'a\nb', SUCCEED, 'found', 'a\nb'),
  99     ('a.*(?s)b', 'acc\nccb', SUCCEED, 'found', 'acc\nccb'),
 100     ('(?s)a.{4,5}b', 'acc\nccb', SUCCEED, 'found', 'acc\nccb'),
 101     ('(?s)a.b', 'a\nb', SUCCEED, 'found', 'a\nb'),
 102
 103     (')', '', SYNTAX_ERROR),           # Unmatched right bracket
 104     ('', '', SUCCEED, 'found', ''),    # Empty pattern
 105     ('abc', 'abc', SUCCEED, 'found', 'abc'),
 106     ('abc', 'xbc', FAIL),
 107     ('abc', 'axc', FAIL),
 108     ('abc', 'abx', FAIL),
 109     ('abc', 'xabcy', SUCCEED, 'found', 'abc'),
 110     ('abc', 'ababc', SUCCEED, 'found', 'abc'),
 111     ('ab*c', 'abc', SUCCEED, 'found', 'abc'),
 112     ('ab*bc', 'abc', SUCCEED, 'found', 'abc'),
 113     ('ab*bc', 'abbc', SUCCEED, 'found', 'abbc'),
 114     ('ab*bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
 115     ('ab+bc', 'abbc', SUCCEED, 'found', 'abbc'),
 116     ('ab+bc', 'abc', FAIL),
 117     ('ab+bc', 'abq', FAIL),
 118     ('ab+bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
 119     ('ab?bc', 'abbc', SUCCEED, 'found', 'abbc'),
 120     ('ab?bc', 'abc', SUCCEED, 'found', 'abc'),
 121     ('ab?bc', 'abbbbc', FAIL),
 122     ('ab?c', 'abc', SUCCEED, 'found', 'abc'),
 123     ('^abc$', 'abc', SUCCEED, 'found', 'abc'),
 124     ('^abc$', 'abcc', FAIL),
 125     ('^abc', 'abcc', SUCCEED, 'found', 'abc'),
 126     ('^abc$', 'aabc', FAIL),
 127     ('abc$', 'aabc', SUCCEED, 'found', 'abc'),
 128     ('^', 'abc', SUCCEED, 'found+"-"', '-'),
 129     ('$', 'abc', SUCCEED, 'found+"-"', '-'),
 130     ('a.c', 'abc', SUCCEED, 'found', 'abc'),
 131     ('a.c', 'axc', SUCCEED, 'found', 'axc'),
 132     ('a.*c', 'axyzc', SUCCEED, 'found', 'axyzc'),
 133     ('a.*c', 'axyzd', FAIL),
 134     ('a[bc]d', 'abc', FAIL),
 135     ('a[bc]d', 'abd', SUCCEED, 'found', 'abd'),
 136     ('a[b-d]e', 'abd', FAIL),
 137     ('a[b-d]e', 'ace', SUCCEED, 'found', 'ace'),
 138     ('a[b-d]', 'aac', SUCCEED, 'found', 'ac'),
 139     ('a[-b]', 'a-', SUCCEED, 'found', 'a-'),
 140     ('a[\\-b]', 'a-', SUCCEED, 'found', 'a-'),
 141     ('a[b-]', 'a-', SYNTAX_ERROR),
 142     ('a[]b', '-', SYNTAX_ERROR),
 143     ('a[', '-', SYNTAX_ERROR),
 144     ('a\\', '-', SYNTAX_ERROR),
 145     ('abc)', '-', SYNTAX_ERROR),
 146     ('(abc', '-', SYNTAX_ERROR),
 147     ('a]', 'a]', SUCCEED, 'found', 'a]'),
 148     ('a[]]b', 'a]b', SUCCEED, 'found', 'a]b'),
 149     ('a[\]]b', 'a]b', SUCCEED, 'found', 'a]b'),
 150     ('a[^bc]d', 'aed', SUCCEED, 'found', 'aed'),
 151     ('a[^bc]d', 'abd', FAIL),
 152     ('a[^-b]c', 'adc', SUCCEED, 'found', 'adc'),
 153     ('a[^-b]c', 'a-c', FAIL),
 154     ('a[^]b]c', 'a]c', FAIL),
 155     ('a[^]b]c', 'adc', SUCCEED, 'found', 'adc'),
 156     ('\\ba\\b', 'a-', SUCCEED, '"-"', '-'),
 157     ('\\ba\\b', '-a', SUCCEED, '"-"', '-'),
 158     ('\\ba\\b', '-a-', SUCCEED, '"-"', '-'),
 159     ('\\by\\b', 'xy', FAIL),
 160     ('\\by\\b', 'yz', FAIL),
 161     ('\\by\\b', 'xyz', FAIL),
 162     ('x\\b', 'xyz', FAIL),
 163     ('x\\B', 'xyz', SUCCEED, '"-"', '-'),
 164     ('\\Bz', 'xyz', SUCCEED, '"-"', '-'),
 165     ('z\\B', 'xyz', FAIL),
 166     ('\\Bx', 'xyz', FAIL),
 167     ('\\Ba\\B', 'a-', FAIL, '"-"', '-'),
 168     ('\\Ba\\B', '-a', FAIL, '"-"', '-'),
 169     ('\\Ba\\B', '-a-', FAIL, '"-"', '-'),
 170     ('\\By\\B', 'xy', FAIL),
 171     ('\\By\\B', 'yz', FAIL),
 172     ('\\By\\b', 'xy', SUCCEED, '"-"', '-'),
 173     ('\\by\\B', 'yz', SUCCEED, '"-"', '-'),
 174     ('\\By\\B', 'xyz', SUCCEED, '"-"', '-'),
 175     ('ab|cd', 'abc', SUCCEED, 'found', 'ab'),
 176     ('ab|cd', 'abcd', SUCCEED, 'found', 'ab'),
 177     ('()ef', 'def', SUCCEED, 'found+"-"+g1', 'ef-'),
 178     ('$b', 'b', FAIL),
 179     ('a\\(b', 'a(b', SUCCEED, 'found+"-"+g1', 'a(b-Error'),
 180     ('a\\(*b', 'ab', SUCCEED, 'found', 'ab'),
 181     ('a\\(*b', 'a((b', SUCCEED, 'found', 'a((b'),
 182     ('a\\\\b', 'a\\b', SUCCEED, 'found', 'a\\b'),
 183     ('((a))', 'abc', SUCCEED, 'found+"-"+g1+"-"+g2', 'a-a-a'),
 184     ('(a)b(c)', 'abc', SUCCEED, 'found+"-"+g1+"-"+g2', 'abc-a-c'),
 185     ('a+b+c', 'aabbabc', SUCCEED, 'found', 'abc'),
 186     ('(a+|b)*', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
 187     ('(a+|b)+', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
 188     ('(a+|b)?', 'ab', SUCCEED, 'found+"-"+g1', 'a-a'),
 189     (')(', '-', SYNTAX_ERROR),
 190     ('[^ab]*', 'cde', SUCCEED, 'found', 'cde'),
 191     ('abc', '', FAIL),
 192     ('a*', '', SUCCEED, 'found', ''),
 193     ('a|b|c|d|e', 'e', SUCCEED, 'found', 'e'),
 194     ('(a|b|c|d|e)f', 'ef', SUCCEED, 'found+"-"+g1', 'ef-e'),
 195     ('abcd*efg', 'abcdefg', SUCCEED, 'found', 'abcdefg'),
 196     ('ab*', 'xabyabbbz', SUCCEED, 'found', 'ab'),
 197     ('ab*', 'xayabbbz', SUCCEED, 'found', 'a'),
 198     ('(ab|cd)e', 'abcde', SUCCEED, 'found+"-"+g1', 'cde-cd'),
 199     ('[abhgefdc]ij', 'hij', SUCCEED, 'found', 'hij'),
 200     ('^(ab|cd)e', 'abcde', FAIL, 'xg1y', 'xy'),
 201     ('(abc|)ef', 'abcdef', SUCCEED, 'found+"-"+g1', 'ef-'),
 202     ('(a|b)c*d', 'abcd', SUCCEED, 'found+"-"+g1', 'bcd-b'),
 203     ('(ab|ab*)bc', 'abc', SUCCEED, 'found+"-"+g1', 'abc-a'),
 204     ('a([bc]*)c*', 'abc', SUCCEED, 'found+"-"+g1', 'abc-bc'),
 205     ('a([bc]*)(c*d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-bc-d'),
 206     ('a([bc]+)(c*d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-bc-d'),
 207     ('a([bc]*)(c+d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-b-cd'),
 208     ('a[bcd]*dcdcde', 'adcdcde', SUCCEED, 'found', 'adcdcde'),
 209     ('a[bcd]+dcdcde', 'adcdcde', FAIL),
 210     ('(ab|a)b*c', 'abc', SUCCEED, 'found+"-"+g1', 'abc-ab'),
 211     ('((a)(b)c)(d)', 'abcd', SUCCEED, 'g1+"-"+g2+"-"+g3+"-"+g4', 'abc-a-b-d'),
 212     ('[a-zA-Z_][a-zA-Z0-9_]*', 'alpha', SUCCEED, 'found', 'alpha'),
 213     ('^a(bc+|b[eh])g|.h$', 'abh', SUCCEED, 'found+"-"+g1', 'bh-None'),
 214     ('(bc+d$|ef*g.|h?i(j|k))', 'effgz', SUCCEED, 'found+"-"+g1+"-"+g2', 'effgz-effgz-None'),
 215     ('(bc+d$|ef*g.|h?i(j|k))', 'ij', SUCCEED, 'found+"-"+g1+"-"+g2', 'ij-ij-j'),
 216     ('(bc+d$|ef*g.|h?i(j|k))', 'effg', FAIL),
 217     ('(bc+d$|ef*g.|h?i(j|k))', 'bcdd', FAIL),
 218     ('(bc+d$|ef*g.|h?i(j|k))', 'reffgz', SUCCEED, 'found+"-"+g1+"-"+g2', 'effgz-effgz-None'),
 219     ('(((((((((a)))))))))', 'a', SUCCEED, 'found', 'a'),
 220     ('multiple words of text', 'uh-uh', FAIL),
 221     ('multiple words', 'multiple words, yeah', SUCCEED, 'found', 'multiple words'),
 222     ('(.*)c(.*)', 'abcde', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcde-ab-de'),
 223     ('\\((.*), (.*)\\)', '(a, b)', SUCCEED, 'g2+"-"+g1', 'b-a'),
 224     ('[k]', 'ab', FAIL),
 225     ('a[-]?c', 'ac', SUCCEED, 'found', 'ac'),
 226     ('(abc)\\1', 'abcabc', SUCCEED, 'g1', 'abc'),
 227     ('([a-c]*)\\1', 'abcabc', SUCCEED, 'g1', 'abc'),
 228     ('^(.+)?B', 'AB', SUCCEED, 'g1', 'A'),
 229     ('(a+).\\1$', 'aaaaa', SUCCEED, 'found+"-"+g1', 'aaaaa-aa'),
 230     ('^(a+).\\1$', 'aaaa', FAIL),
 231     ('(abc)\\1', 'abcabc', SUCCEED, 'found+"-"+g1', 'abcabc-abc'),
 232     ('([a-c]+)\\1', 'abcabc', SUCCEED, 'found+"-"+g1', 'abcabc-abc'),
 233     ('(a)\\1', 'aa', SUCCEED, 'found+"-"+g1', 'aa-a'),
 234     ('(a+)\\1', 'aa', SUCCEED, 'found+"-"+g1', 'aa-a'),
 235     ('(a+)+\\1', 'aa', SUCCEED, 'found+"-"+g1', 'aa-a'),
 236     ('(a).+\\1', 'aba', SUCCEED, 'found+"-"+g1', 'aba-a'),
 237     ('(a)ba*\\1', 'aba', SUCCEED, 'found+"-"+g1', 'aba-a'),
 238     ('(aa|a)a\\1$', 'aaa', SUCCEED, 'found+"-"+g1', 'aaa-a'),
 239     ('(a|aa)a\\1$', 'aaa', SUCCEED, 'found+"-"+g1', 'aaa-a'),
 240     ('(a+)a\\1$', 'aaa', SUCCEED, 'found+"-"+g1', 'aaa-a'),
 241     ('([abc]*)\\1', 'abcabc', SUCCEED, 'found+"-"+g1', 'abcabc-abc'),
 242     ('(a)(b)c|ab', 'ab', SUCCEED, 'found+"-"+g1+"-"+g2', 'ab-None-None'),
 243     ('(a)+x', 'aaax', SUCCEED, 'found+"-"+g1', 'aaax-a'),
 244     ('([ac])+x', 'aacx', SUCCEED, 'found+"-"+g1', 'aacx-c'),
 245     ('([^/]*/)*sub1/', 'd:msgs/tdir/sub1/trial/away.cpp', SUCCEED, 'found+"-"+g1', 'd:msgs/tdir/sub1/-tdir/'),
 246     ('([^.]*)\\.([^:]*):[T ]+(.*)', 'track1.title:TBlah blah blah', SUCCEED, 'found+"-"+g1+"-"+g2+"-"+g3', 'track1.title:TBlah blah blah-track1-title-Blah blah blah'),
 247     ('([^N]*N)+', 'abNNxyzN', SUCCEED, 'found+"-"+g1', 'abNNxyzN-xyzN'),
 248     ('([^N]*N)+', 'abNNxyz', SUCCEED, 'found+"-"+g1', 'abNN-N'),
 249     ('([abc]*)x', 'abcx', SUCCEED, 'found+"-"+g1', 'abcx-abc'),
 250     ('([abc]*)x', 'abc', FAIL),
 251     ('([xyz]*)x', 'abcx', SUCCEED, 'found+"-"+g1', 'x-'),
 252     ('(a)+b|aac', 'aac', SUCCEED, 'found+"-"+g1', 'aac-None'),
 253
 254     # Test symbolic groups
 255
 256     ('(?P<i d>aaa)a', 'aaaa', SYNTAX_ERROR),
 257     ('(?P<id>aaa)a', 'aaaa', SUCCEED, 'found+"-"+id', 'aaaa-aaa'),
 258     ('(?P<id>aa)(?P=id)', 'aaaa', SUCCEED, 'found+"-"+id', 'aaaa-aa'),
 259     ('(?P<id>aa)(?P=xd)', 'aaaa', SYNTAX_ERROR),
 260
 261     # Test octal escapes/memory references
 262
 263     ('\\1', 'a', SYNTAX_ERROR),
 264     ('\\09', chr(0) + '9', SUCCEED, 'found', chr(0) + '9'),
 265     ('\\141', 'a', SUCCEED, 'found', 'a'),
 266     ('(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)\\119', 'abcdefghijklk9', SUCCEED, 'found+"-"+g11', 'abcdefghijklk9-k'),
 267
 268     # All tests from Perl
 269
 270     ('abc', 'abc', SUCCEED, 'found', 'abc'),
 271     ('abc', 'xbc', FAIL),
 272     ('abc', 'axc', FAIL),
 273     ('abc', 'abx', FAIL),
 274     ('abc', 'xabcy', SUCCEED, 'found', 'abc'),
 275     ('abc', 'ababc', SUCCEED, 'found', 'abc'),
 276     ('ab*c', 'abc', SUCCEED, 'found', 'abc'),
 277     ('ab*bc', 'abc', SUCCEED, 'found', 'abc'),
 278     ('ab*bc', 'abbc', SUCCEED, 'found', 'abbc'),
 279     ('ab*bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
 280     ('ab{0,}bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
 281     ('ab+bc', 'abbc', SUCCEED, 'found', 'abbc'),
 282     ('ab+bc', 'abc', FAIL),
 283     ('ab+bc', 'abq', FAIL),
 284     ('ab{1,}bc', 'abq', FAIL),
 285     ('ab+bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
 286     ('ab{1,}bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
 287     ('ab{1,3}bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
 288     ('ab{3,4}bc', 'abbbbc', SUCCEED, 'found', 'abbbbc'),
 289     ('ab{4,5}bc', 'abbbbc', FAIL),
 290     ('ab?bc', 'abbc', SUCCEED, 'found', 'abbc'),
 291     ('ab?bc', 'abc', SUCCEED, 'found', 'abc'),
 292     ('ab{0,1}bc', 'abc', SUCCEED, 'found', 'abc'),
 293     ('ab?bc', 'abbbbc', FAIL),
 294     ('ab?c', 'abc', SUCCEED, 'found', 'abc'),
 295     ('ab{0,1}c', 'abc', SUCCEED, 'found', 'abc'),
 296     ('^abc$', 'abc', SUCCEED, 'found', 'abc'),
 297     ('^abc$', 'abcc', FAIL),
 298     ('^abc', 'abcc', SUCCEED, 'found', 'abc'),
 299     ('^abc$', 'aabc', FAIL),
 300     ('abc$', 'aabc', SUCCEED, 'found', 'abc'),
 301     ('^', 'abc', SUCCEED, 'found', ''),
 302     ('$', 'abc', SUCCEED, 'found', ''),
 303     ('a.c', 'abc', SUCCEED, 'found', 'abc'),
 304     ('a.c', 'axc', SUCCEED, 'found', 'axc'),
 305     ('a.*c', 'axyzc', SUCCEED, 'found', 'axyzc'),
 306     ('a.*c', 'axyzd', FAIL),
 307     ('a[bc]d', 'abc', FAIL),
 308     ('a[bc]d', 'abd', SUCCEED, 'found', 'abd'),
 309     ('a[b-d]e', 'abd', FAIL),
 310     ('a[b-d]e', 'ace', SUCCEED, 'found', 'ace'),
 311     ('a[b-d]', 'aac', SUCCEED, 'found', 'ac'),
 312     ('a[-b]', 'a-', SUCCEED, 'found', 'a-'),
 313     ('a[b-]', 'a-', SUCCEED, 'found', 'a-'),
 314     ('a[b-a]', '-', SYNTAX_ERROR),
 315     ('a[]b', '-', SYNTAX_ERROR),
 316     ('a[', '-', SYNTAX_ERROR),
 317     ('a]', 'a]', SUCCEED, 'found', 'a]'),
 318     ('a[]]b', 'a]b', SUCCEED, 'found', 'a]b'),
 319     ('a[^bc]d', 'aed', SUCCEED, 'found', 'aed'),
 320     ('a[^bc]d', 'abd', FAIL),
 321     ('a[^-b]c', 'adc', SUCCEED, 'found', 'adc'),
 322     ('a[^-b]c', 'a-c', FAIL),
 323     ('a[^]b]c', 'a]c', FAIL),
 324     ('a[^]b]c', 'adc', SUCCEED, 'found', 'adc'),
 325     ('ab|cd', 'abc', SUCCEED, 'found', 'ab'),
 326     ('ab|cd', 'abcd', SUCCEED, 'found', 'ab'),
 327     ('()ef', 'def', SUCCEED, 'found+"-"+g1', 'ef-'),
 328     ('*a', '-', SYNTAX_ERROR),
 329     ('(*)b', '-', SYNTAX_ERROR),
 330     ('$b', 'b', FAIL),
 331     ('a\\', '-', SYNTAX_ERROR),
 332     ('a\\(b', 'a(b', SUCCEED, 'found+"-"+g1', 'a(b-Error'),
 333     ('a\\(*b', 'ab', SUCCEED, 'found', 'ab'),
 334     ('a\\(*b', 'a((b', SUCCEED, 'found', 'a((b'),
 335     ('a\\\\b', 'a\\b', SUCCEED, 'found', 'a\\b'),
 336     ('abc)', '-', SYNTAX_ERROR),
 337     ('(abc', '-', SYNTAX_ERROR),
 338     ('((a))', 'abc', SUCCEED, 'found+"-"+g1+"-"+g2', 'a-a-a'),
 339     ('(a)b(c)', 'abc', SUCCEED, 'found+"-"+g1+"-"+g2', 'abc-a-c'),
 340     ('a+b+c', 'aabbabc', SUCCEED, 'found', 'abc'),
 341     ('a{1,}b{1,}c', 'aabbabc', SUCCEED, 'found', 'abc'),
 342     ('a**', '-', SYNTAX_ERROR),
 343     ('a.+?c', 'abcabc', SUCCEED, 'found', 'abc'),
 344     ('(a+|b)*', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
 345     ('(a+|b){0,}', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
 346     ('(a+|b)+', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
 347     ('(a+|b){1,}', 'ab', SUCCEED, 'found+"-"+g1', 'ab-b'),
 348     ('(a+|b)?', 'ab', SUCCEED, 'found+"-"+g1', 'a-a'),
 349     ('(a+|b){0,1}', 'ab', SUCCEED, 'found+"-"+g1', 'a-a'),
 350     (')(', '-', SYNTAX_ERROR),
 351     ('[^ab]*', 'cde', SUCCEED, 'found', 'cde'),
 352     ('abc', '', FAIL),
 353     ('a*', '', SUCCEED, 'found', ''),
 354     ('([abc])*d', 'abbbcd', SUCCEED, 'found+"-"+g1', 'abbbcd-c'),
 355     ('([abc])*bcd', 'abcd', SUCCEED, 'found+"-"+g1', 'abcd-a'),
 356     ('a|b|c|d|e', 'e', SUCCEED, 'found', 'e'),
 357     ('(a|b|c|d|e)f', 'ef', SUCCEED, 'found+"-"+g1', 'ef-e'),
 358     ('abcd*efg', 'abcdefg', SUCCEED, 'found', 'abcdefg'),
 359     ('ab*', 'xabyabbbz', SUCCEED, 'found', 'ab'),
 360     ('ab*', 'xayabbbz', SUCCEED, 'found', 'a'),
 361     ('(ab|cd)e', 'abcde', SUCCEED, 'found+"-"+g1', 'cde-cd'),
 362     ('[abhgefdc]ij', 'hij', SUCCEED, 'found', 'hij'),
 363     ('^(ab|cd)e', 'abcde', FAIL),
 364     ('(abc|)ef', 'abcdef', SUCCEED, 'found+"-"+g1', 'ef-'),
 365     ('(a|b)c*d', 'abcd', SUCCEED, 'found+"-"+g1', 'bcd-b'),
 366     ('(ab|ab*)bc', 'abc', SUCCEED, 'found+"-"+g1', 'abc-a'),
 367     ('a([bc]*)c*', 'abc', SUCCEED, 'found+"-"+g1', 'abc-bc'),
 368     ('a([bc]*)(c*d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-bc-d'),
 369     ('a([bc]+)(c*d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-bc-d'),
 370     ('a([bc]*)(c+d)', 'abcd', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcd-b-cd'),
 371     ('a[bcd]*dcdcde', 'adcdcde', SUCCEED, 'found', 'adcdcde'),
 372     ('a[bcd]+dcdcde', 'adcdcde', FAIL),
 373     ('(ab|a)b*c', 'abc', SUCCEED, 'found+"-"+g1', 'abc-ab'),
 374     ('((a)(b)c)(d)', 'abcd', SUCCEED, 'g1+"-"+g2+"-"+g3+"-"+g4', 'abc-a-b-d'),
 375     ('[a-zA-Z_][a-zA-Z0-9_]*', 'alpha', SUCCEED, 'found', 'alpha'),
 376     ('^a(bc+|b[eh])g|.h$', 'abh', SUCCEED, 'found+"-"+g1', 'bh-None'),
 377     ('(bc+d$|ef*g.|h?i(j|k))', 'effgz', SUCCEED, 'found+"-"+g1+"-"+g2', 'effgz-effgz-None'),
 378     ('(bc+d$|ef*g.|h?i(j|k))', 'ij', SUCCEED, 'found+"-"+g1+"-"+g2', 'ij-ij-j'),
 379     ('(bc+d$|ef*g.|h?i(j|k))', 'effg', FAIL),
 380     ('(bc+d$|ef*g.|h?i(j|k))', 'bcdd', FAIL),
 381     ('(bc+d$|ef*g.|h?i(j|k))', 'reffgz', SUCCEED, 'found+"-"+g1+"-"+g2', 'effgz-effgz-None'),
 382     ('((((((((((a))))))))))', 'a', SUCCEED, 'g10', 'a'),
 383     ('((((((((((a))))))))))\\10', 'aa', SUCCEED, 'found', 'aa'),
 384 # Python does not have the same rules for \\41 so this is a syntax error
 385 #    ('((((((((((a))))))))))\\41', 'aa', FAIL),
 386 #    ('((((((((((a))))))))))\\41', 'a!', SUCCEED, 'found', 'a!'),
 387     ('((((((((((a))))))))))\\41', '', SYNTAX_ERROR),
 388     ('(?i)((((((((((a))))))))))\\41', '', SYNTAX_ERROR),
 389     ('(((((((((a)))))))))', 'a', SUCCEED, 'found', 'a'),
 390     ('multiple words of text', 'uh-uh', FAIL),
 391     ('multiple words', 'multiple words, yeah', SUCCEED, 'found', 'multiple words'),
 392     ('(.*)c(.*)', 'abcde', SUCCEED, 'found+"-"+g1+"-"+g2', 'abcde-ab-de'),
 393     ('\\((.*), (.*)\\)', '(a, b)', SUCCEED, 'g2+"-"+g1', 'b-a'),
 394     ('[k]', 'ab', FAIL),
 395     ('a[-]?c', 'ac', SUCCEED, 'found', 'ac'),
 396     ('(abc)\\1', 'abcabc', SUCCEED, 'g1', 'abc'),
 397     ('([a-c]*)\\1', 'abcabc', SUCCEED, 'g1', 'abc'),
 398     ('(?i)abc', 'ABC', SUCCEED, 'found', 'ABC'),
 399     ('(?i)abc', 'XBC', FAIL),
 400     ('(?i)abc', 'AXC', FAIL),
 401     ('(?i)abc', 'ABX', FAIL),
 402     ('(?i)abc', 'XABCY', SUCCEED, 'found', 'ABC'),
 403     ('(?i)abc', 'ABABC', SUCCEED, 'found', 'ABC'),
 404     ('(?i)ab*c', 'ABC', SUCCEED, 'found', 'ABC'),
 405     ('(?i)ab*bc', 'ABC', SUCCEED, 'found', 'ABC'),
 406     ('(?i)ab*bc', 'ABBC', SUCCEED, 'found', 'ABBC'),
 407     ('(?i)ab*?bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
 408     ('(?i)ab{0,}?bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
 409     ('(?i)ab+?bc', 'ABBC', SUCCEED, 'found', 'ABBC'),
 410     ('(?i)ab+bc', 'ABC', FAIL),
 411     ('(?i)ab+bc', 'ABQ', FAIL),
 412     ('(?i)ab{1,}bc', 'ABQ', FAIL),
 413     ('(?i)ab+bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
 414     ('(?i)ab{1,}?bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
 415     ('(?i)ab{1,3}?bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
 416     ('(?i)ab{3,4}?bc', 'ABBBBC', SUCCEED, 'found', 'ABBBBC'),
 417     ('(?i)ab{4,5}?bc', 'ABBBBC', FAIL),
 418     ('(?i)ab??bc', 'ABBC', SUCCEED, 'found', 'ABBC'),
 419     ('(?i)ab??bc', 'ABC', SUCCEED, 'found', 'ABC'),
 420     ('(?i)ab{0,1}?bc', 'ABC', SUCCEED, 'found', 'ABC'),
 421     ('(?i)ab??bc', 'ABBBBC', FAIL),
 422     ('(?i)ab??c', 'ABC', SUCCEED, 'found', 'ABC'),
 423     ('(?i)ab{0,1}?c', 'ABC', SUCCEED, 'found', 'ABC'),
 424     ('(?i)^abc$', 'ABC', SUCCEED, 'found', 'ABC'),
 425     ('(?i)^abc$', 'ABCC', FAIL),
 426     ('(?i)^abc', 'ABCC', SUCCEED, 'found', 'ABC'),
 427     ('(?i)^abc$', 'AABC', FAIL),
 428     ('(?i)abc$', 'AABC', SUCCEED, 'found', 'ABC'),
 429     ('(?i)^', 'ABC', SUCCEED, 'found', ''),
 430     ('(?i)$', 'ABC', SUCCEED, 'found', ''),
 431     ('(?i)a.c', 'ABC', SUCCEED, 'found', 'ABC'),
 432     ('(?i)a.c', 'AXC', SUCCEED, 'found', 'AXC'),
 433     ('(?i)a.*?c', 'AXYZC', SUCCEED, 'found', 'AXYZC'),
 434     ('(?i)a.*c', 'AXYZD', FAIL),
 435     ('(?i)a[bc]d', 'ABC', FAIL),
 436     ('(?i)a[bc]d', 'ABD', SUCCEED, 'found', 'ABD'),
 437     ('(?i)a[b-d]e', 'ABD', FAIL),
 438     ('(?i)a[b-d]e', 'ACE', SUCCEED, 'found', 'ACE'),
 439     ('(?i)a[b-d]', 'AAC', SUCCEED, 'found', 'AC'),
 440     ('(?i)a[-b]', 'A-', SUCCEED, 'found', 'A-'),
 441     ('(?i)a[b-]', 'A-', SUCCEED, 'found', 'A-'),
 442     ('(?i)a[b-a]', '-', SYNTAX_ERROR),
 443     ('(?i)a[]b', '-', SYNTAX_ERROR),
 444     ('(?i)a[', '-', SYNTAX_ERROR),
 445     ('(?i)a]', 'A]', SUCCEED, 'found', 'A]'),
 446     ('(?i)a[]]b', 'A]B', SUCCEED, 'found', 'A]B'),
 447     ('(?i)a[^bc]d', 'AED', SUCCEED, 'found', 'AED'),
 448     ('(?i)a[^bc]d', 'ABD', FAIL),
 449     ('(?i)a[^-b]c', 'ADC', SUCCEED, 'found', 'ADC'),
 450     ('(?i)a[^-b]c', 'A-C', FAIL),
 451     ('(?i)a[^]b]c', 'A]C', FAIL),
 452     ('(?i)a[^]b]c', 'ADC', SUCCEED, 'found', 'ADC'),
 453     ('(?i)ab|cd', 'ABC', SUCCEED, 'found', 'AB'),
 454     ('(?i)ab|cd', 'ABCD', SUCCEED, 'found', 'AB'),
 455     ('(?i)()ef', 'DEF', SUCCEED, 'found+"-"+g1', 'EF-'),
 456     ('(?i)*a', '-', SYNTAX_ERROR),
 457     ('(?i)(*)b', '-', SYNTAX_ERROR),
 458     ('(?i)$b', 'B', FAIL),
 459     ('(?i)a\\', '-', SYNTAX_ERROR),
 460     ('(?i)a\\(b', 'A(B', SUCCEED, 'found+"-"+g1', 'A(B-Error'),
 461     ('(?i)a\\(*b', 'AB', SUCCEED, 'found', 'AB'),
 462     ('(?i)a\\(*b', 'A((B', SUCCEED, 'found', 'A((B'),
 463     ('(?i)a\\\\b', 'A\\B', SUCCEED, 'found', 'A\\B'),
 464     ('(?i)abc)', '-', SYNTAX_ERROR),
 465     ('(?i)(abc', '-', SYNTAX_ERROR),
 466     ('(?i)((a))', 'ABC', SUCCEED, 'found+"-"+g1+"-"+g2', 'A-A-A'),
 467     ('(?i)(a)b(c)', 'ABC', SUCCEED, 'found+"-"+g1+"-"+g2', 'ABC-A-C'),
 468     ('(?i)a+b+c', 'AABBABC', SUCCEED, 'found', 'ABC'),
 469     ('(?i)a{1,}b{1,}c', 'AABBABC', SUCCEED, 'found', 'ABC'),
 470     ('(?i)a**', '-', SYNTAX_ERROR),
 471     ('(?i)a.+?c', 'ABCABC', SUCCEED, 'found', 'ABC'),
 472     ('(?i)a.*?c', 'ABCABC', SUCCEED, 'found', 'ABC'),
 473     ('(?i)a.{0,5}?c', 'ABCABC', SUCCEED, 'found', 'ABC'),
 474     ('(?i)(a+|b)*', 'AB', SUCCEED, 'found+"-"+g1', 'AB-B'),
 475     ('(?i)(a+|b){0,}', 'AB', SUCCEED, 'found+"-"+g1', 'AB-B'),
 476     ('(?i)(a+|b)+', 'AB', SUCCEED, 'found+"-"+g1', 'AB-B'),
 477     ('(?i)(a+|b){1,}', 'AB', SUCCEED, 'found+"-"+g1', 'AB-B'),
 478     ('(?i)(a+|b)?', 'AB', SUCCEED, 'found+"-"+g1', 'A-A'),
 479     ('(?i)(a+|b){0,1}', 'AB', SUCCEED, 'found+"-"+g1', 'A-A'),
 480     ('(?i)(a+|b){0,1}?', 'AB', SUCCEED, 'found+"-"+g1', '-None'),
 481     ('(?i))(', '-', SYNTAX_ERROR),
 482     ('(?i)[^ab]*', 'CDE', SUCCEED, 'found', 'CDE'),
 483     ('(?i)abc', '', FAIL),
 484     ('(?i)a*', '', SUCCEED, 'found', ''),
 485     ('(?i)([abc])*d', 'ABBBCD', SUCCEED, 'found+"-"+g1', 'ABBBCD-C'),
 486     ('(?i)([abc])*bcd', 'ABCD', SUCCEED, 'found+"-"+g1', 'ABCD-A'),
 487     ('(?i)a|b|c|d|e', 'E', SUCCEED, 'found', 'E'),
 488     ('(?i)(a|b|c|d|e)f', 'EF', SUCCEED, 'found+"-"+g1', 'EF-E'),
 489     ('(?i)abcd*efg', 'ABCDEFG', SUCCEED, 'found', 'ABCDEFG'),
 490     ('(?i)ab*', 'XABYABBBZ', SUCCEED, 'found', 'AB'),
 491     ('(?i)ab*', 'XAYABBBZ', SUCCEED, 'found', 'A'),
 492     ('(?i)(ab|cd)e', 'ABCDE', SUCCEED, 'found+"-"+g1', 'CDE-CD'),
 493     ('(?i)[abhgefdc]ij', 'HIJ', SUCCEED, 'found', 'HIJ'),
 494     ('(?i)^(ab|cd)e', 'ABCDE', FAIL),
 495     ('(?i)(abc|)ef', 'ABCDEF', SUCCEED, 'found+"-"+g1', 'EF-'),
 496     ('(?i)(a|b)c*d', 'ABCD', SUCCEED, 'found+"-"+g1', 'BCD-B'),
 497     ('(?i)(ab|ab*)bc', 'ABC', SUCCEED, 'found+"-"+g1', 'ABC-A'),
 498     ('(?i)a([bc]*)c*', 'ABC', SUCCEED, 'found+"-"+g1', 'ABC-BC'),
 499     ('(?i)a([bc]*)(c*d)', 'ABCD', SUCCEED, 'found+"-"+g1+"-"+g2', 'ABCD-BC-D'),
 500     ('(?i)a([bc]+)(c*d)', 'ABCD', SUCCEED, 'found+"-"+g1+"-"+g2', 'ABCD-BC-D'),
 501     ('(?i)a([bc]*)(c+d)', 'ABCD', SUCCEED, 'found+"-"+g1+"-"+g2', 'ABCD-B-CD'),
 502     ('(?i)a[bcd]*dcdcde', 'ADCDCDE', SUCCEED, 'found', 'ADCDCDE'),
 503     ('(?i)a[bcd]+dcdcde', 'ADCDCDE', FAIL),
 504     ('(?i)(ab|a)b*c', 'ABC', SUCCEED, 'found+"-"+g1', 'ABC-AB'),
 505     ('(?i)((a)(b)c)(d)', 'ABCD', SUCCEED, 'g1+"-"+g2+"-"+g3+"-"+g4', 'ABC-A-B-D'),
 506     ('(?i)[a-zA-Z_][a-zA-Z0-9_]*', 'ALPHA', SUCCEED, 'found', 'ALPHA'),
 507     ('(?i)^a(bc+|b[eh])g|.h$', 'ABH', SUCCEED, 'found+"-"+g1', 'BH-None'),
 508     ('(?i)(bc+d$|ef*g.|h?i(j|k))', 'EFFGZ', SUCCEED, 'found+"-"+g1+"-"+g2', 'EFFGZ-EFFGZ-None'),
 509     ('(?i)(bc+d$|ef*g.|h?i(j|k))', 'IJ', SUCCEED, 'found+"-"+g1+"-"+g2', 'IJ-IJ-J'),
 510     ('(?i)(bc+d$|ef*g.|h?i(j|k))', 'EFFG', FAIL),
 511     ('(?i)(bc+d$|ef*g.|h?i(j|k))', 'BCDD', FAIL),
 512     ('(?i)(bc+d$|ef*g.|h?i(j|k))', 'REFFGZ', SUCCEED, 'found+"-"+g1+"-"+g2', 'EFFGZ-EFFGZ-None'),
 513     ('(?i)((((((((((a))))))))))', 'A', SUCCEED, 'g10', 'A'),
 514     ('(?i)((((((((((a))))))))))\\10', 'AA', SUCCEED, 'found', 'AA'),
 515     #('(?i)((((((((((a))))))))))\\41', 'AA', FAIL),
 516     #('(?i)((((((((((a))))))))))\\41', 'A!', SUCCEED, 'found', 'A!'),
 517     ('(?i)(((((((((a)))))))))', 'A', SUCCEED, 'found', 'A'),
 518     ('(?i)(?:(?:(?:(?:(?:(?:(?:(?:(?:(a))))))))))', 'A', SUCCEED, 'g1', 'A'),
 519     ('(?i)(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))', 'C', SUCCEED, 'g1', 'C'),
 520     ('(?i)multiple words of text', 'UH-UH', FAIL),
 521     ('(?i)multiple words', 'MULTIPLE WORDS, YEAH', SUCCEED, 'found', 'MULTIPLE WORDS'),
 522     ('(?i)(.*)c(.*)', 'ABCDE', SUCCEED, 'found+"-"+g1+"-"+g2', 'ABCDE-AB-DE'),
 523     ('(?i)\\((.*), (.*)\\)', '(A, B)', SUCCEED, 'g2+"-"+g1', 'B-A'),
 524     ('(?i)[k]', 'AB', FAIL),
 525 #    ('(?i)abcd', 'ABCD', SUCCEED, 'found+"-"+\\found+"-"+\\\\found', 'ABCD-$&-\\ABCD'),
 526 #    ('(?i)a(bc)d', 'ABCD', SUCCEED, 'g1+"-"+\\g1+"-"+\\\\g1', 'BC-$1-\\BC'),
 527     ('(?i)a[-]?c', 'AC', SUCCEED, 'found', 'AC'),
 528     ('(?i)(abc)\\1', 'ABCABC', SUCCEED, 'g1', 'ABC'),
 529     ('(?i)([a-c]*)\\1', 'ABCABC', SUCCEED, 'g1', 'ABC'),
 530     ('a(?!b).', 'abad', SUCCEED, 'found', 'ad'),
 531     ('a(?=d).', 'abad', SUCCEED, 'found', 'ad'),
 532     ('a(?=c|d).', 'abad', SUCCEED, 'found', 'ad'),
 533     ('a(?:b|c|d)(.)', 'ace', SUCCEED, 'g1', 'e'),
 534     ('a(?:b|c|d)*(.)', 'ace', SUCCEED, 'g1', 'e'),
 535     ('a(?:b|c|d)+?(.)', 'ace', SUCCEED, 'g1', 'e'),
 536     ('a(?:b|(c|e){1,2}?|d)+?(.)', 'ace', SUCCEED, 'g1 + g2', 'ce'),
 537     ('^(.+)?B', 'AB', SUCCEED, 'g1', 'A'),
 538
 539     # Comments using the (?#...) syntax
 540
 541     ('w(?# comment', 'w', SYNTAX_ERROR),
 542     ('w(?# comment 1)xy(?# comment 2)z', 'wxyz', SUCCEED, 'found', 'wxyz'),
 543
 544     # Check odd placement of embedded pattern modifiers
 545
 546     ('w(?i)', 'W', SYNTAX_ERROR),
 547
 548     # Comments using the x embedded pattern modifier
 549
 550     ("""(?x)w# comment 1
 551         x y
 552         # comment 2
 553         z""", 'wxyz', SUCCEED, 'found', 'wxyz'),
 554
 555     # using the m embedded pattern modifier
 556
 557     ('^abc', """jkl
 558 abc
 559 xyz""", FAIL),
 560     ('(?m)^abc', """jkl
 561 abc
 562 xyz""", SUCCEED, 'found', 'abc'),
 563
 564     ('(?m)abc$', """jkl
 565 xyzabc
 566 123""", SUCCEED, 'found', 'abc'),
 567
 568     # using the s embedded pattern modifier
 569
 570     ('a.b', 'a\nb', FAIL),
 571     ('(?s)a.b', 'a\nb', SUCCEED, 'found', 'a\nb'),
 572
 573     # test \w, etc. both inside and outside character classes
 574
 575     ('\\w+', '--ab_cd0123--', SUCCEED, 'found', 'ab_cd0123'),
 576     ('[\\w]+', '--ab_cd0123--', SUCCEED, 'found', 'ab_cd0123'),
 577     ('\\D+', '1234abc5678', SUCCEED, 'found', 'abc'),
 578     ('[\\D]+', '1234abc5678', SUCCEED, 'found', 'abc'),
 579     ('[\\da-fA-F]+', '123abc', SUCCEED, 'found', '123abc'),
 580     ('[\\d-x]', '-', SYNTAX_ERROR),
 581     (r'([\s]*)([\S]*)([\s]*)', ' testing!1972', SUCCEED, 'g3+g2+g1', 'testing!1972 '),
 582     (r'(\s*)(\S*)(\s*)', ' testing!1972', SUCCEED, 'g3+g2+g1', 'testing!1972 '),
 583
 584     (r'\xff', '\377', SUCCEED, 'found', chr(255)),
 585     (r'\x00ff', '\377', SUCCEED, 'found', chr(255)),
 586     (r'\t\n\v\r\f\a\g', '\t\n\v\r\f\ag', SUCCEED, 'found', '\t\n\v\r\f\ag'),
 587     ('\t\n\v\r\f\a\g', '\t\n\v\r\f\ag', SUCCEED, 'found', '\t\n\v\r\f\ag'),
 588     (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)),
 589     (r'[\t][\n][\v][\r][\f][\b]', '\t\n\v\r\f\b', SUCCEED, 'found', '\t\n\v\r\f\b'),
 590 ]