require 'facet/string/to_arr'
require 'facet/enumerable/frequency'

class String

  def frequency(*args)
    to_arr(*args).frequency
  end

end

#--
# NOTE: add String#occur and String#occur_within in future ?
#++



#  _____         _
# |_   _|__  ___| |_
#   | |/ _ \/ __| __|
#   | |  __/\__ \ |_
#   |_|\___||___/\__|
#
=begin test

  require 'test/unit'

  class TCString < Test::Unit::TestCase

    def test_frequency
      assert_equal( {'a'=>1,'b'=>1}, "ab".frequency )
      assert_equal( {'tom'=>1,'boy'=>1}, "tom boy".frequency(:word) )
      assert_equal( {'tom'=>1,'boy'=>1}, "tom\nboy".frequency(:line) )
    end

  end

=end