172fb5230a
The generated regex code is limited in the range of jumps and counts, and this commit checks all cases which can overflow given the right kind of input regex, and returns an error in such a case. This change assumes that the results that overflow an int8_t do not overflow a platform int. Closes: #7078 Signed-off-by: Jeff Epler <jepler@gmail.com>
35 lines
550 B
Python
35 lines
550 B
Python
# Test overflow in ure.compile output code.
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try:
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import ure as re
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except ImportError:
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print("SKIP")
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raise SystemExit
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def test_re(r):
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try:
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re.compile(r)
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except:
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print("Error")
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# too many chars in []
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test_re("[" + "a" * 256 + "]")
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# too many groups
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test_re("(a)" * 256)
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# jump too big for ?
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test_re("(" + "a" * 62 + ")?")
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# jump too big for *
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test_re("(" + "a" * 60 + ".)*")
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test_re("(" + "a" * 60 + "..)*")
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# jump too big for +
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test_re("(" + "a" * 62 + ")+")
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# jump too big for |
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test_re("b" * 63 + "|a")
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