Version extractor for beatmania IIDX ULTIMATE MOBILE

iidxum-versionpicker.rb

#!/usr/bin/env ruby

require "kconv"

# iidxum-versionpicker.rb : Version extractor for beatmania IIDX ULTIMATE MOBILE
#   by takehikom
#   see also: https://takehikom.hateblo.jp/entry/2019/12/10/000000

# 通信せず、27.0（という名前）のファイルを読み出して、
# game_idの値とバージョン名を見つけ、カンマ区切りで出力する

class IIDXumVersionpicker
  # def initialize; end

  def pick_version
    html = open("27.0").read
    html2 = html.toutf8
    # html2.sub!(/charset=shift.?jis/, "charset=utf-8")

    result = []
    html2.scan(/<option .*?game_id=(.*?)".*?>(.*?)<\/option>/) do |u, v|
      # '<option value="/game/2dx/mobile/music/game.html?game_id=27.0" selected >beatmania IIDX 27 HEROIC VERSE</option>'
      # のとき，u = '27.0', v = 'beatmania IIDX 27 HEROIC VERSE'
      result << [u.to_f, v.strip]
    end

    result
  end

  def start
    result = pick_version.sort_by { |item| item.first }

    result.each do |u, v|
      print "#{u},#{v}\r\n"
    end
  end
end

if __FILE__ == $0
  IIDXumVersionpicker.new.start
end