From: Morris Keesan <mkeesan@...>
Date: 2009-06-21T12:18:50+09:00
Subject: Re: replacing repetition of characters in string

This problem is a little under-specified, and it would be worth asking  
exactly what your friend is trying to accomplish.
As a quick question, what should happen if the input contains THREE of the  
same character?  Should "aaa" become
aaa
*aa*a
*aaa*
*a*a*a*
or something else?


On Sat, 20 Jun 2009 18:05:22 -0400, David Rio <driodeiros@gmail.com> 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?
>
> -drd
>