From: Gavin Kistner <gavin.kistner@...>
Date: 2006-09-13T03:02:48+09:00
Subject: Re: removing spaces between single characters with regual expression

From: ciapecki [mailto:ciapecki@gmail.com] 
> 'A B C' -> 'ABC'
> 'AB C' -> 'AB C'                 (no change)
> 'Teddy Bear A B' -> 'Teddy Bear AB'

irb(main):005:0> s = 'A long cat and a quick mouse met o j simpson on
the t c p stack'
=> "A long cat and a quick mouse met o j simpson on the t c p stack"

irb(main):006:0> s.gsub( /\b([a-z]) (?=[a-z]\b)/i, '\\1' )
=> "A long cat and a quick mouse met oj simpson on the tcp stack"