Find in nested hashes, prints key path recursively

gistfile1.rb

def search_in_hash(hash, target, args={}, keys='ROOT')
  find_key = (args[:find_key] == true)

  hash.each do |key, value|
    find_target = find_key ? key.to_s : value
    if find_target == target
      keys = "#{keys} -> '#{key}' => #{target}"
      puts keys
      keys = ""
    end

    if value.is_a?(Hash)
      new_keys = "#{keys} -> '#{key}'"
      search_in_hash(value, target, args, new_keys)
      next
    end
  end
end

h = {:a => 1, :b => {:x => 11, :y => {"i" => 99}}, :c => 99}
search_in_hash(h, 99, {:find_key => false})

#OUTPUT
# ROOT -> 'b' -> 'y' -> 'i' => 99
# ROOT -> 'c' => 99