AniNair wrote: > On Sep 5, 4:35 am, Ricardo Aráoz <[EMAIL PROTECTED]> wrote: >> Steve Holden wrote: >>> AniNair wrote: >>>> hi.. I am trying to match '+ %&/-' etc using regular expression in >>>> expressions like 879+34343. I tried \W+ but it matches only in the >>>> beginning of the string Plz help Thanking you in advance... >>> Perhaps you could give a few example of strings that should and >>> shouldn't match? It isn't clear from your description what pattern you >>> are trying to find. >>> regards >>> Steve >> If it's operations between two numbers try : >> r'([\d.]+?)\s*([-+/*%&])([\d.]+)' >> It will give you 3 groups, first number, operation and second number >> (caveat emptor). > > > Hi.. Thanks alot for finding time to help a beginner like me. What I > am trying to do is validate the input i get. I just want to take > numbers and numbers only. So if the input is 23+1 or 2/3 or 9-0 or > 7/0 , I want to find it using reg exp. I know there are other ways to > do this... but i thought i will try this as i need to learn reg exp. I > tried \D+ , \W+, and \D+|\W+ .. Thanks once again... >
Well \d will match a number and '.' inside [] will match a dot ;) so if you want only integer numbers ([\d.]*) should be replaced with (\d+) Only problem with the expression I sent is that it will match a number with more than one dot. HTH -- http://mail.python.org/mailman/listinfo/python-list
