Home Original page

please help with simple regex

jam jam at p98.f112.n480.z2.fidonet.org
Thu Jul 1 13:10:34 EDT 1999 
From: jam <jam at newimage.com>

On Fri, Jul 02, 1999 at 12:35:51AM +0000, viofis at my-deja.com wrote:
> 
> I'm a beginner at Python, so this may be a stupid question:
> 
> I have a string, for example, myString="the Potato".
> 1. Convert it to all lowercase ("the potato")
> 2. Match it against a list of strings - "potato,tomato,corn,etc...",
> extract "potato" (if it matches with something on the list), then save
> into myNewString.
> 
> Any help is greatly appreciated.
> 
> thanks,
> Vadim
> 

hi.

I don't quite understand what it is you are trying to do. if you want to
take a string and find out if it contains some other string, you probably
don't need to worry about regular expressions at all.

what kind of problem are you trying to solve? do you 'need' to use a
specific solution for some reason?

I tried this:

[~] [9:02pm] [jam at toast-pts/6] % python
Python 1.5.2 (#1, Apr 18 1999, 16:03:16)  [GCC pgcc-2.91.60 19981201
(egcs-1.1.1  on linux2
Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
>>> import string
>>> buf = "The Carrot"
>>> validveggies = ("carrot", "corn", "spam")
>>> buf = string.lower(buf)
>>> for w in string.split(buf):
...     if w in validveggies:
...             print "valid veggie '%s' found." % (w)
... 
valid veggie 'carrot' found.

does that help?

regards,
Jeff
-- 
|| visit gfd <http://quark.newimage.com/> 
|| psa member #293 <http://www.python.org/> 
|| New Image Systems & Services, Inc. <http://www.newimage.com/>
More information about the Python-list mailing list