# File proofreader.rb, line 213
    def range?(eloras, die)
      validity = true  # default range, 0..*
      if die
        if die.range
          # divide and count eloras by parent groups
          parent_groups = Hash.new(0)
          eloras.each do |elora|
            case elora
            when REXML::Attribute
              parent_groups[elora.element] += 1
            when REXML::Element
              parent_groups[elora.parent] += 1
            end
          end
          parent_groups.each do |parent, tally|
            if not die.range === tally
              validity = false
              error = "RANGE #{tally} ##{die.range}#"
              @errors << [die.namespace, die.xpath, error]
            end
          end
        end
      end
      return validity
    end