gistfile1.txt

class OHash
	attr_reader :keys
	def initialize(&default)
		super()
		@default = default
		@keys = []
		@hash = Hash.new(&default)
	end

	def[](key)
		@hash.[](key)
	end

	def []=(key, val)
		@keys << key
		@hash.[]=(key,val)
	end

	def delete(key)
		@keys.delete(key)
		@hash.delete(key)
	end

	def each
		@keys && @keys.each { |k| yield(k, @hash[k]) }
	end

	def each_key
		@keys.each { |k| yield(k) }
	end       

	def each_value
		@keys.each { |k| yield @hash[k] }
	end
	
	def values()
		@keys.map { |k| @hash[k] }
	end

end