mirror of https://github.com/python/cpython
288 lines
8.9 KiB
Python
288 lines
8.9 KiB
Python
# Regex test suite and benchmark suite v1.5a2
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# Due to the use of r"aw" strings, this file will
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# only work with Python 1.5 or higher.
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# The 3 possible outcomes for each pattern
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[SUCCEED, FAIL, SYNTAX_ERROR] = range(3)
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# Benchmark suite (needs expansion)
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#
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# The benchmark suite does not test correctness, just speed. The
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# first element of each tuple is the regex pattern; the second is a
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# string to match it against. The benchmarking code will embed the
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# second string inside several sizes of padding, to test how regex
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# matching performs on large strings.
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benchmarks = [
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('Python', 'Python'), # Simple text literal
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('.*Python', 'Python'), # Bad text literal
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('.*Python.*', 'Python'), # Worse text literal
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('.*\\(Python\\)', 'Python'), # Bad text literal with grouping
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('(Python\\|Perl\\|Tcl', 'Perl'), # Alternation
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('\\(Python\\|Perl\\|Tcl\\)', 'Perl'), # Grouped alternation
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('\\(Python\\)\\1', 'PythonPython'), # Backreference
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# ('\\([0a-z][a-z]*,\\)+', 'a5,b7,c9,'), # Disable the fastmap optimization
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('\\([a-z][a-z0-9]*,\\)+', 'a5,b7,c9,') # A few sets
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]
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# Test suite (for verifying correctness)
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#
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# The test suite is a list of 5- or 3-tuples. The 5 parts of a
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# complete tuple are:
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# element 0: a string containing the pattern
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# 1: the string to match against the pattern
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# 2: the expected result (SUCCEED, FAIL, SYNTAX_ERROR)
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# 3: a string that will be eval()'ed to produce a test string.
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# This is an arbitrary Python expression; the available
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# variables are "found" (the whole match), and "g1", "g2", ...
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# up to "g10" contain the contents of each group, or the
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# string 'None' if the group wasn't given a value.
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# 4: The expected result of evaluating the expression.
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# If the two don't match, an error is reported.
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#
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# If the regex isn't expected to work, the latter two elements can be omitted.
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tests = [
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('abc', 'abc', SUCCEED,
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'found', 'abc'),
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('abc', 'xbc', FAIL),
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('abc', 'axc', FAIL),
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('abc', 'abx', FAIL),
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('abc', 'xabcy', SUCCEED,
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'found', 'abc'),
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('abc', 'ababc', SUCCEED,
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'found', 'abc'),
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('ab*c', 'abc', SUCCEED,
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'found', 'abc'),
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('ab*bc', 'abc', SUCCEED,
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'found', 'abc'),
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('ab*bc', 'abbc', SUCCEED,
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'found', 'abbc'),
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('ab*bc', 'abbbbc', SUCCEED,
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'found', 'abbbbc'),
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('ab+bc', 'abbc', SUCCEED,
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'found', 'abbc'),
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('ab+bc', 'abc', FAIL),
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('ab+bc', 'abq', FAIL),
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('ab+bc', 'abbbbc', SUCCEED,
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'found', 'abbbbc'),
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('ab?bc', 'abbc', SUCCEED,
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'found', 'abbc'),
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('ab?bc', 'abc', SUCCEED,
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'found', 'abc'),
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('ab?bc', 'abbbbc', FAIL),
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('ab?c', 'abc', SUCCEED,
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'found', 'abc'),
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('^abc$', 'abc', SUCCEED,
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'found', 'abc'),
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('^abc$', 'abcc', FAIL),
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('^abc', 'abcc', SUCCEED,
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'found', 'abc'),
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('^abc$', 'aabc', FAIL),
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('abc$', 'aabc', SUCCEED,
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'found', 'abc'),
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('^', 'abc', SUCCEED,
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'found+"-"', '-'),
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('$', 'abc', SUCCEED,
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'found+"-"', '-'),
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('a.c', 'abc', SUCCEED,
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'found', 'abc'),
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('a.c', 'axc', SUCCEED,
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'found', 'axc'),
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('a.*c', 'axyzc', SUCCEED,
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'found', 'axyzc'),
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('a.*c', 'axyzd', FAIL),
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('a[bc]d', 'abc', FAIL),
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('a[bc]d', 'abd', SUCCEED,
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'found', 'abd'),
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('a[b-d]e', 'abd', FAIL),
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('a[b-d]e', 'ace', SUCCEED,
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'found', 'ace'),
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('a[b-d]', 'aac', SUCCEED,
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'found', 'ac'),
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('a[-b]', 'a-', SUCCEED,
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'found', 'a-'),
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('a[b-]', 'a-', SUCCEED,
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'found', 'a-'),
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('a[]b', '-', SYNTAX_ERROR),
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('a[', '-', SYNTAX_ERROR),
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('a\\', '-', SYNTAX_ERROR),
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('abc\\)', '-', SYNTAX_ERROR),
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('\\(abc', '-', SYNTAX_ERROR),
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('a]', 'a]', SUCCEED,
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'found', 'a]'),
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('a[]]b', 'a]b', SUCCEED,
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'found', 'a]b'),
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('a[^bc]d', 'aed', SUCCEED,
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'found', 'aed'),
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('a[^bc]d', 'abd', FAIL),
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('a[^-b]c', 'adc', SUCCEED,
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'found', 'adc'),
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('a[^-b]c', 'a-c', FAIL),
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('a[^]b]c', 'a]c', FAIL),
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('a[^]b]c', 'adc', SUCCEED,
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'found', 'adc'),
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('\\ba\\b', 'a-', SUCCEED,
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'"-"', '-'),
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('\\ba\\b', '-a', SUCCEED,
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'"-"', '-'),
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('\\ba\\b', '-a-', SUCCEED,
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'"-"', '-'),
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('\\by\\b', 'xy', FAIL),
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('\\by\\b', 'yz', FAIL),
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('\\by\\b', 'xyz', FAIL),
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('ab\\|cd', 'abc', SUCCEED,
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'found', 'ab'),
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('ab\\|cd', 'abcd', SUCCEED,
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'found', 'ab'),
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('\\(\\)ef', 'def', SUCCEED,
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'found+"-"+g1', 'ef-'),
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('$b', 'b', FAIL),
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('a(b', 'a(b', SUCCEED,
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'found+"-"+g1', 'a(b-None'),
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('a(*b', 'ab', SUCCEED,
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'found', 'ab'),
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('a(*b', 'a((b', SUCCEED,
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'found', 'a((b'),
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('a\\\\b', 'a\\b', SUCCEED,
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'found', 'a\\b'),
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('\\(\\(a\\)\\)', 'abc', SUCCEED,
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'found+"-"+g1+"-"+g2', 'a-a-a'),
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('\\(a\\)b\\(c\\)', 'abc', SUCCEED,
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'found+"-"+g1+"-"+g2', 'abc-a-c'),
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('a+b+c', 'aabbabc', SUCCEED,
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'found', 'abc'),
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('\\(a+\\|b\\)*', 'ab', SUCCEED,
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'found+"-"+g1', 'ab-b'),
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('\\(a+\\|b\\)+', 'ab', SUCCEED,
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'found+"-"+g1', 'ab-b'),
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('\\(a+\\|b\\)?', 'ab', SUCCEED,
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'found+"-"+g1', 'a-a'),
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('\\)\\(', '-', SYNTAX_ERROR),
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('[^ab]*', 'cde', SUCCEED,
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'found', 'cde'),
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('abc', '', FAIL),
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('a*', '', SUCCEED,
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'found', ''),
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('a\\|b\\|c\\|d\\|e', 'e', SUCCEED,
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'found', 'e'),
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('\\(a\\|b\\|c\\|d\\|e\\)f', 'ef', SUCCEED,
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'found+"-"+g1', 'ef-e'),
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('abcd*efg', 'abcdefg', SUCCEED,
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'found', 'abcdefg'),
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('ab*', 'xabyabbbz', SUCCEED,
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'found', 'ab'),
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('ab*', 'xayabbbz', SUCCEED,
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'found', 'a'),
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('\\(ab\\|cd\\)e', 'abcde', SUCCEED,
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'found+"-"+g1', 'cde-cd'),
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('[abhgefdc]ij', 'hij', SUCCEED,
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'found', 'hij'),
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('^\\(ab\\|cd\\)e', 'abcde', FAIL,
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'xg1y', 'xy'),
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('\\(abc\\|\\)ef', 'abcdef', SUCCEED,
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'found+"-"+g1', 'ef-'),
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('\\(a\\|b\\)c*d', 'abcd', SUCCEED,
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'found+"-"+g1', 'bcd-b'),
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('\\(ab\\|ab*\\)bc', 'abc', SUCCEED,
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'found+"-"+g1', 'abc-a'),
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('a\\([bc]*\\)c*', 'abc', SUCCEED,
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'found+"-"+g1', 'abc-bc'),
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('a\\([bc]*\\)\\(c*d\\)', 'abcd', SUCCEED,
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'found+"-"+g1+"-"+g2', 'abcd-bc-d'),
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('a\\([bc]+\\)\\(c*d\\)', 'abcd', SUCCEED,
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'found+"-"+g1+"-"+g2', 'abcd-bc-d'),
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('a\\([bc]*\\)\\(c+d\\)', 'abcd', SUCCEED,
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'found+"-"+g1+"-"+g2', 'abcd-b-cd'),
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('a[bcd]*dcdcde', 'adcdcde', SUCCEED,
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'found', 'adcdcde'),
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('a[bcd]+dcdcde', 'adcdcde', FAIL),
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('\\(ab\\|a\\)b*c', 'abc', SUCCEED,
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'found+"-"+g1', 'abc-ab'),
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('\\(\\(a\\)\\(b\\)c\\)\\(d\\)', 'abcd', SUCCEED,
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'g1+"-"+g2+"-"+g3+"-"+g4', 'abc-a-b-d'),
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('[a-zA-Z_][a-zA-Z0-9_]*', 'alpha', SUCCEED,
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'found', 'alpha'),
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('^a\\(bc+\\|b[eh]\\)g\\|.h$', 'abh', SUCCEED,
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'found+"-"+g1', 'bh-None'),
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('\\(bc+d$\\|ef*g.\\|h?i\\(j\\|k\\)\\)', 'effgz', SUCCEED,
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'found+"-"+g1+"-"+g2', 'effgz-effgz-None'),
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('\\(bc+d$\\|ef*g.\\|h?i\\(j\\|k\\)\\)', 'ij', SUCCEED,
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'found+"-"+g1+"-"+g2', 'ij-ij-j'),
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('\\(bc+d$\\|ef*g.\\|h?i\\(j\\|k\\)\\)', 'effg', FAIL),
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('\\(bc+d$\\|ef*g.\\|h?i\\(j\\|k\\)\\)', 'bcdd', FAIL),
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('\\(bc+d$\\|ef*g.\\|h?i\\(j\\|k\\)\\)', 'reffgz', SUCCEED,
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'found+"-"+g1+"-"+g2', 'effgz-effgz-None'),
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('\\(\\(\\(\\(\\(\\(\\(\\(\\(a\\)\\)\\)\\)\\)\\)\\)\\)\\)', 'a', SUCCEED,
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'found', 'a'),
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('multiple words of text', 'uh-uh', FAIL),
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('multiple words', 'multiple words, yeah', SUCCEED,
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'found', 'multiple words'),
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('\\(.*\\)c\\(.*\\)', 'abcde', SUCCEED,
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'found+"-"+g1+"-"+g2', 'abcde-ab-de'),
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('(\\(.*\\), \\(.*\\))', '(a, b)', SUCCEED,
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'g2+"-"+g1', 'b-a'),
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('[k]', 'ab', FAIL),
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('a[-]?c', 'ac', SUCCEED,
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'found', 'ac'),
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('\\(abc\\)\\1', 'abcabc', SUCCEED,
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'g1', 'abc'),
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('\\([a-c]*\\)\\1', 'abcabc', SUCCEED,
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'g1', 'abc'),
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('^\\(.+\\)?B', 'AB', SUCCEED,
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'g1', 'A'),
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('\\(a+\\).\\1$', 'aaaaa', SUCCEED,
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'found+"-"+g1', 'aaaaa-aa'),
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('^\\(a+\\).\\1$', 'aaaa', FAIL),
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('\\(abc\\)\\1', 'abcabc', SUCCEED,
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'found+"-"+g1', 'abcabc-abc'),
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('\\([a-c]+\\)\\1', 'abcabc', SUCCEED,
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'found+"-"+g1', 'abcabc-abc'),
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('\\(a\\)\\1', 'aa', SUCCEED,
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'found+"-"+g1', 'aa-a'),
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('\\(a+\\)\\1', 'aa', SUCCEED,
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'found+"-"+g1', 'aa-a'),
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('\\(a+\\)+\\1', 'aa', SUCCEED,
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'found+"-"+g1', 'aa-a'),
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('\\(a\\).+\\1', 'aba', SUCCEED,
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'found+"-"+g1', 'aba-a'),
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('\\(a\\)ba*\\1', 'aba', SUCCEED,
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'found+"-"+g1', 'aba-a'),
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('\\(aa\\|a\\)a\\1$', 'aaa', SUCCEED,
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'found+"-"+g1', 'aaa-a'),
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('\\(a\\|aa\\)a\\1$', 'aaa', SUCCEED,
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'found+"-"+g1', 'aaa-a'),
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('\\(a+\\)a\\1$', 'aaa', SUCCEED,
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'found+"-"+g1', 'aaa-a'),
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('\\([abc]*\\)\\1', 'abcabc', SUCCEED,
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'found+"-"+g1', 'abcabc-abc'),
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('\\(a\\)\\(b\\)c\\|ab', 'ab', SUCCEED,
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'found+"-"+g1+"-"+g2', 'ab-None-None'),
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('\\(a\\)+x', 'aaax', SUCCEED,
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'found+"-"+g1', 'aaax-a'),
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('\\([ac]\\)+x', 'aacx', SUCCEED,
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'found+"-"+g1', 'aacx-c'),
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('\\([^/]*/\\)*sub1/', 'd:msgs/tdir/sub1/trial/away.cpp', SUCCEED,
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'found+"-"+g1', 'd:msgs/tdir/sub1/-tdir/'),
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('\\([^.]*\\)\\.\\([^:]*\\):[T ]+\\(.*\\)', 'track1.title:TBlah blah blah', SUCCEED,
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'found+"-"+g1+"-"+g2+"-"+g3', 'track1.title:TBlah blah blah-track1-title-Blah blah blah'),
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('\\([^N]*N\\)+', 'abNNxyzN', SUCCEED,
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'found+"-"+g1', 'abNNxyzN-xyzN'),
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('\\([^N]*N\\)+', 'abNNxyz', SUCCEED,
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'found+"-"+g1', 'abNN-N'),
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('\\([abc]*\\)x', 'abcx', SUCCEED,
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'found+"-"+g1', 'abcx-abc'),
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('\\([abc]*\\)x', 'abc', FAIL),
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('\\([xyz]*\\)x', 'abcx', SUCCEED,
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'found+"-"+g1', 'x-'),
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('\\(a\\)+b\\|aac', 'aac', SUCCEED,
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'found+"-"+g1', 'aac-None'),
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('\<a', 'a', SUCCEED, 'found', 'a'),
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('\<a', '!', FAIL),
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('a\<b', 'ab', FAIL),
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('a\>', 'ab', FAIL),
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('a\>', 'a!', SUCCEED, 'found', 'a'),
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('a\>', 'a', SUCCEED, 'found', 'a'),
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]
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