From: Daniel Schierbeck <daniel.schierbeck@...>
Date: 2007-02-20T09:08:03+09:00
Subject: [Facets] Range#overlap?

(I'm sending this to the list because I think it has general interest.
Sorry if you disagree!)

Hi T. and the rest of you,

I was discussing[1] a method that tested whether one range overlaps
another, and noticed that Facets has a somewhat funny implementation
called #within?. I came up with this:

  class Range
    def overlap? other
      include? other.first or other.include? first
    end
  end

It would seem to be simpler, and I really like the method name. Can you
see any errors? Feel free to add it to Facets if you wish to.


Cheers,
Daniel


 1. http://opensoul.org/2007/2/13/ranges-include-or-overlap-with-ranges