text processing

MRAB google at mrabarnett.plus.com
Fri Sep 26 00:01:15 CEST 2008


On Sep 25, 6:34 pm, Marc 'BlackJack' Rintsch <bj_... at gmx.net> wrote:
> On Thu, 25 Sep 2008 15:51:28 +0100, jitensha... at gmail.com wrote:
> > I have string like follow
> > 12560/ABC,12567/BC,123,567,890/JK
>
> > I want above string to group like as follow (12560,ABC)
> > (12567,BC)
> > (123,567,890,JK)
>
> > i try regular expression i am able to get first two not the third one.
> > can regular expression given data in different groups
>
> Without regular expressions:
>
> def group(string):
>     result = list()
>     for item in string.split(','):
>         if '/' in item:
>             result.extend(item.split('/'))
>             yield tuple(result)
>             result = list()
>         else:
>             result.append(item)
>
> def main():
>     string = '12560/ABC,12567/BC,123,567,890/JK'
>     print list(group(string))
>
How about:

>>> string = "12560/ABC,12567/BC,123,567,890/JK"
>>> r = re.findall(r"(\d+(?:,\d+)*/\w+)", string)
>>> r
['12560/ABC', '12567/BC', '123,567,890/JK']
>>> [tuple(x.replace(",", "/").split("/")) for x in r]
[('12560', 'ABC'), ('12567', 'BC'), ('123', '567', '890', 'JK')]



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