From: Phrogz <phrogz@...>
Date: 2007-12-11T12:20:22+09:00
Subject: Re: Word Loop (#149)

On Dec 9, 1:38 pm, Ken Bloom <kbl...@gmail.com> wrote:
> def loopword word
>   matchinfo=
>     word.match(/(.*?)(.)(.(?:..)+?)\2(.*)/i)
>   if matchinfo
>     _,before,letter,looplets,after=matchinfo.to_a
>     pad=" "*before.size
>     after.reverse.split(//).each{|l| puts pad+l}
>     looplets=looplets.split(//)
>     puts before+letter+looplets.shift
>     until looplets.empty?
>       puts pad+looplets.pop+looplets.shift
>     end
>   else
>     puts "No loop."
>   end
> end

Marvelously tight! However, it outputs this:

loopword "chinchilla"
#=> a
#=> l
#=> l
#=> i
#=> h
#=> ch
#=> ni

when I would have expected this:

loopword "chinchilla"
#=> ch
#=> ni
#=>  l
#=>  l
#=>  a