parsing combination strings

PKKR superprad at gmail.com
Wed Mar 21 20:18:41 CET 2007


On Mar 21, 2:51 pm, "Steven D. Arnold" <stev... at neosynapse.net> wrote:
> On Mar 21, 2007, at 2:42 PM, PKKR wrote:
>
> > I need a fast and efficient way to parse a combination string(digits +
> > chars)
>
> > ex: s = "12ABA" or "1ACD" or "123CSD" etc
>
> > I want to parse the the above string such that i can grab only the
> > first digits and ignore the rest of the chacters,
>
> A regex leaps to mind.....have you investigated the "re" module?
>
>  >>> import re
>  >>> re.match(r'(\d+)', '123abc').group(1)
> '123'
>
> steven


yep thats what i tried as per tommy's advice and came up with:

re.split('[^0-9]', str)[0]

or is there a better way?




More information about the Python-list mailing list