From: Lex Williams <etaern@...>
Date: 2008-09-25T23:43:56+09:00
Subject: Re: how to wrap a long string

Considering that :

a = "1112223334444"

watch the following irb session :

irb(main):010:0> a.scan(/((.)\2+)/).collect {|match| match[0]}
=> ["111", "222", "333", "4444"]

using that regex , you'll obtain an array of matches .
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