From: "David A. Black" <dblack@...>
Date: 2009-06-21T07:42:10+09:00
Subject: Re: replacing repetition of characters in string

Hi --

On Sun, 21 Jun 2009, David Rio wrote:

> Hi there,
>
> A friend of mine asked me to write a script that reads a file and
> marks the double characters.
> Something like:
>
> $ ruby scratch_ruby_drio.rb
> INPUT
> ---------
> test. AA. I greatXXrr love it.
> audi tt uu yes.
> stop here, axmmen.
>
> OUTPUT
> ------------
> {3} test. *AA*. I great*XX**rr* love it.
> {2} audi *tt* *uu* yes.
> {1} stop here, ax*mm*en.
>
> I coded something up that works but I don't like it:
>
> http://gist.github.com/133299
>
> Do you guys have any other alternatives?

Try this:

str.gsub(/((\w)\2)/,'*\1*')

(Change \w to whatever represents the characters you want to capture.)


David

-- 
David A. Black / Ruby Power and Light, LLC
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