# File lib/map.rb, line 854
  def Map.explode(hash)
    accum = {:branches => [], :leaves => []}

    hash.each do |key, value|
      Map._explode(key, value, accum)
    end

    branches = accum[:branches]
    leaves = accum[:leaves]

    sort_by_key_size = proc{|a,b| a.first.size <=> b.first.size}

    branches.sort!(&sort_by_key_size)
    leaves.sort!(&sort_by_key_size)

    accum
  end