Contents

require "takami2/version"

class String
  def is_valid_taiwanese_id?
    cities = {
      :A => '10', :B => '11', :C => '12', :D => '13',
      :E => '14', :F => '15', :G => '16', :H => '17',
      :I => '34', :J => '18', :K => '19', :L => '20',
      :M => '21', :N => '22', :O => '35', :P => '23',
      :Q => '24', :R => '25', :S => '26', :T => '27',
      :U => '28', :V => '29', :W => '32', :X => '30',
      :Y => '31', :Z => '33',
    }

    id_array = self.upcase.split('')

    special = cities[id_array.first.to_sym][0].to_i * 1 + cities[id_array.first.to_sym][1].to_i * 9
    sum =
      special +
      id_array[1].to_i * 8 +
      id_array[2].to_i * 7 +
      id_array[3].to_i * 6 +
      id_array[4].to_i * 5 +
      id_array[5].to_i * 4 +
      id_array[6].to_i * 3 +
      id_array[7].to_i * 2 +
      id_array[8].to_i * 1 +
      id_array[9].to_i
    return sum % 10 == 0
  end
end

module Takami2
  def is_ruby_awesome?
    "YES"
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
takami2-0.0.3	lib/takami2.rb