New submission from Hendrik Lemelson:
When using the Python 2.7.3 re module, it shows a strange behavior upon the use
of quantifiers together with groups:
>>> re.search('(a*)', 'ct').groups()
('',)
>>> re.search('(a+)',
Hendrik Lemelson added the comment:
Thank you for clarifying this. While it still not seems really intuitive to me
I can handle the behavior.
To summarize: It is not possible with re to have an optional ({0,1}) group that
contains further subgroups, because re considers (0,0) to already
