From: William James <w_a_x_man@...>
Date: 2006-03-13T18:58:45+09:00
Subject: Re: What's the best way to split this kind of string?


Sam Kong wrote:
> Hi!
>
> I'm trying to make a routine to make a Morris Number Sequence.
> (http://www.ocf.berkeley.edu/~stoll/number_sequence.html)
> I need to split a string in the following way, for example.
>
> "111223133" => ["111", "22", "3", "1", "33"]
>
> I can loop thru the string by each character, comparing with the
> previous character.
> But is there a quick and easy way?
> Probably a regular expression?
> 
> Thanks.
> 
> Sam

"111223133".scan(/(.)(\1*)/).map{|x|x.join}