所蔵式 HLV の巻情報を展開する

ext-hlv.rb

class String
  def expand_hlv
    self.gsub(/\([^\)]+\)/, "").split(/;/).map do |e1|
      e1.split(/,\s*/).map do |e|
        start_vol, end_vol, = e.gsub(/\+/, "").split(/-/)
        if end_vol
          (start_vol .. end_vol).to_a
        else
          start_vol
        end
      end
    end.flatten
  end
end

if $0 == __FILE__
  p "40-80".expand_hlv
  p "60,7-8".expand_hlv
  p "6(6),7(2-4),8(1-4)".expand_hlv
  p "7-8,9(1-7,9-12),10-16".expand_hlv

  p "4-9;5-8".expand_hlv
  p "4-9;5-7,8(1-4)".expand_hlv
  p "159-170;16-18,19(1-2,4-6,8-12),20-21".expand_hlv
end