From: Ryan Davis <ryand-ruby@...>
Date: 2012-09-08T07:20:10+09:00
Subject: Re: regix in grep or something like this


On Sep 7, 2012, at 15:05 , Ferdous ara <lists@ruby-forum.com> wrote:

>> Paste the data above into the "text string" box, then try your regexp in
>> the regexp box. It'll show what it matches live. You can then tweak the
>> regexp until it matches everything you want.
> 
> 
> I been to these site before but bit confused about how it works
> 
> Under Regular expresson ,i type
> 
> c0d1
> its give me 3 match ..
> 
> but i want only 1 math.. so how that site helping to build regular 
> expression ??

Writing the regexp is up to you. I'm providing you tools to get faster feedback so you can learn regexps. Also check out my quickref, it has a whole section an what can go into a regexp:

http://www.zenspider.com/Languages/Ruby/QuickRef.html#regexen