[Python-Dev] Re: pre-PEP: Complete,
Structured Regular Expression Group Matching
Mike Coleman
mkc at mathdogs.com
Sat Aug 7 05:59:04 CEST 2004
"Raymond Hettinger" <python at rcn.com> writes:
> > A notable limitation of the ``re.match`` method is that it fails to
> > capture all group match information for repeatedly matched groups.
> > For example, in a call like this ::
> >
> > m0 = re.match(r'([A-Z]|[a-z])*', 'XxxxYzz')
> >
> > one would like to see that the group which matched four times matched
> > the strings ``'X'``, ``'xxx'``, ``'Y'`` and ``'zz'``.
>
> I suspect there is a typo in the example and that the asterisk should
> precede the right paren:
>
> m0 = re.match(r'([A-Z]|[a-z]*)', 'XxxxYzz')
Oops, you are correct. In fact, I was thinking of
m0 = re.match(r'([A-Z]*|[a-z]*)', 'XxxxYzz')
when I wrote this, but since only single capitals are given in my example, it
could be either.
Fixed. Thanks!
Mike
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