[yelo]

Hi,

I'm trying to write a regular expression to match a string which contains numbers.

The string can be any sentence with a number in any format, eg., 122.5, $1000, 90%.

Could anyone please help?

Thanks in advance,
Ami

[yelo]

This is what I tried. I have a file containing a few lines, which I have in a list.

pattern = None
file = open('file.txt','r')
for line in file:
    pattern = re.search('\S*'+ (('\$?(\d+)\.?(\d?)') or ('(\d+)\s?(\d+)/(\d+)') or ('(\d+)\.?(\d?)%?')), line)
    if pattern:
        print pattern.split("text")[-1]

I'm not sure whether we could use "or" operators within regular expressions. I am a newbie and I have been trying to figure this out, but could not find anything that was of help to me.

Your help is appreciated.

Thanks,
Ami

[atraub]

I'd be genuinely impressed with Python if it was smart enough to make that work. I think a better solution would be to pipe those regular expressions together. You can find more information on how to do that here.

This post has been edited by JackOfAllTrades: 23 September 2012 - 05:21 AM
Reason for edit:: Used bit.ly on link to fix link bug

[alpertt]

could you fix the link, some tag broke it i guess.

[JackOfAllTrades]

Done.