gistfile1.rb

  class FuzzyHash
    attr_reader :attrs

    def initialize(attrs)
      @attrs = attrs
    end

    def blank?
      attrs.nil?
    end

    def nil?
      attrs.nil?
    end

    def to_s
      ""
    end

    def [](key)
      if blank?
        return self
      end

      value = attrs[key]
      case value
      when Hash, HashWithIndifferentAccess
        FuzzyHash.new(value.dup)
      when nil
        FuzzyHash.new(nil)
      else
        value
      end
    end

    def method_missing(*args)
      if blank?
        self
      else
        self[args.first]
      end
    end
  end

  def fuzzy_attributes
    FuzzyHash.new(attributes.dup)
  end