vendor/rails/activesupport/lib/active_support/core_ext/range/overlaps.rb

   1 module ActiveSupport #:nodoc:
   2   module CoreExtensions #:nodoc:
   3     module Range #:nodoc:
   4       # Check if Ranges overlap.
   5       module Overlaps
   6         # Compare two ranges and see if they overlap eachother
   7         #  (1..5).overlaps?(4..6) # => true
   8         #  (1..5).overlaps?(7..9) # => false
   9         def overlaps?(other)
  10           include?(other.first) || other.include?(first)
  11         end
  12       end
  13     end
  14   end
  15 end