Matthew Boehm <[email protected]> added the comment:
Here are some windows results with Python 2.7:
>>> import re
>>> re.match("()*?1", "1")
<_sre.SRE_Match object at 0x025C0E60>
>>> re.match("()+?1", "1")
>>> re.match("()+?1", "11")
<_sre.SRE_Match object at 0x025C0E60>
>>> re.match("()*?1", "11")
<_sre.SRE_Match object at 0x025C3C60>
<_sre.SRE_Match object at 0x025C3C60>
>>> re.match("()*?1", "a1")
Traceback (most recent call last):
File "<pyshell#12>", line 1, in <module>
re.match("()*?1", "a1")
File "C:\Python27\lib\re.py", line 137, in match
return _compile(pattern, flags).match(string)
MemoryError
>>> re.match("()+?1", "a1")
Traceback (most recent call last):
File "<pyshell#13>", line 1, in <module>
re.match("()+?1", "a1")
File "C:\Python27\lib\re.py", line 137, in match
return _compile(pattern, flags).match(string)
MemoryError
Note that when matching to a string starting with "1", the matcher will not
throw a MemoryError.
----------
nosy: +Matthew.Boehm
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Python tracker <[email protected]>
<http://bugs.python.org/issue12177>
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