From: Phrogz <gavin@...>
Date: 2007-04-12T08:10:12+09:00
Subject: Re: How to Write a Spelling Corrector

On Apr 11, 2:54 am, "William James" <w_a_x_...@yahoo.com> wrote:

> class String
>   def replace( which, what )
>     self[0...which] + what + self[which+1 .. -1]
>   end
> end

Cleaner, IMHO:

  class String
    def replace( where, what )
      s2 = dup
      s2[ where ] = what
      s2
    end
  end