From: Aldric Giacomoni <aldric@...>
Date: 2009-10-30T22:45:10+09:00
Subject: Re: How do you get the tail end of a string?

Bertram Scharpf wrote:
> My question was not _how_ to implement it but _why_ _not_ to add
> it to the interpreter.
> 
> Your method is returning `true' what Numeric#nonzero? will never
> do.
> 
> Bertram

You want a method which returns "nil" if the string is empty, and the 
string itself if the string is nonempty?

class String
  def nonempty?
    self.empty? ? nil : self
  end
end

Happy? ;-)
Why wouldn't this be implemented by default, er, I don't know, I really 
can't think of a time when I'd need this type of behavior.
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