inverse.rb in facets-2.2.0

- old
+ new

@@ -1,32 +1,18 @@
-# TITLE:
-#
-#   Hash Inverse
-#
-# SUMMARY:
-#
-#   Create a "true" inverse hash by storing mutliple values
-#   in Arrays.
-#
-# CREDITS:
-#
-#   - Tilo Sloboda
-
-#
 class Hash
 
-  # CREDIT Tilo Sloboda
-
   # Create a "true" inverse hash by storing mutliple values
   # in Arrays.
   #
   #   h = {"a"=>3, "b"=>3, "c"=>3, "d"=>2, "e"=>9, "f"=>3, "g"=>9}
   #
   #   h.invert                #=> {2=>"d", 3=>"f", 9=>"g"}
   #   h.inverse               #=> {2=>"d", 3=>["f", "c", "b", "a"], 9=>["g", "e"]}
   #   h.inverse.inverse       #=> {"a"=>3, "b"=>3, "c"=>3, "d"=>2, "e"=>9, "f"=>3, "g"=>9}
   #   h.inverse.inverse == h  #=> true
+  #
+  #   CREDIT: Tilo Sloboda
 
   def inverse
     i = Hash.new
     self.each_pair{ |k,v|
       if (Array === v)
@@ -37,30 +23,5 @@
     }
     return i
   end
 
 end
-
-
-#  _____         _
-# |_   _|__  ___| |_
-#   | |/ _ \/ __| __|
-#   | |  __/\__ \ |_
-#   |_|\___||___/\__|
-#
-=begin test
-
-  require 'test/unit'
-
-  class TestHashInverse < Test::Unit::TestCase
-
-    def test_inverse
-      h1 = { :a=>1, :b=>2, :c=>2 }
-      h2 = h1.inverse
-      assert_equal( :a, h2[1] )
-      assert( h2[2].include?(:b) )
-      assert( h2[2].include?(:c) )
-    end
-
-  end
-
-=end