LCD Numbers Another Version

lcd.rb

#!/usr/bin/ruby
class LCDNumber

  def initialize(size, input_number)
    @input_number = input_number
    @size = size

    @display_code = [
      ['horizontal_line_yes', 'vertical_line_both', 'horizontal_line_no', 'vertical_line_both', 'horizontal_line_yes'   ],
      ['horizontal_line_no', 'vertical_line_right', 'horizontal_line_no', 'vertical_line_right', 'horizontal_line_no'   ],
      ['horizontal_line_yes', 'vertical_line_right', 'horizontal_line_yes', 'vertical_line_left', 'horizontal_line_yes' ],
      ['horizontal_line_yes', 'vertical_line_right', 'horizontal_line_yes', 'vertical_line_right', 'horizontal_line_yes'],
      ['horizontal_line_no', 'vertical_line_both', 'horizontal_line_yes', 'vertical_line_right', 'horizontal_line_no'   ],
      ['horizontal_line_yes', 'vertical_line_left', 'horizontal_line_yes', 'vertical_line_right', 'horizontal_line_yes' ],
      ['horizontal_line_yes', 'vertical_line_left', 'horizontal_line_yes', 'vertical_line_both', 'horizontal_line_yes'  ],
      ['horizontal_line_yes', 'vertical_line_right', 'horizontal_line_no', 'vertical_line_right', 'horizontal_line_no'  ],
      ['horizontal_line_yes', 'vertical_line_both', 'horizontal_line_yes', 'vertical_line_both', 'horizontal_line_yes'  ],
      ['horizontal_line_yes', 'vertical_line_both', 'horizontal_line_yes', 'vertical_line_right', 'horizontal_line_yes' ]
    ]

  end

  def print_LCD
    @numbers = convert_to_array_from(@input_number)
    5.times do |row_index|
      @output = ''
      if row_index == 1 || row_index == 3
        print_vertical row_index
      else
        print_horizontal row_index    
      end
      puts @output.concat('')
    end
  end

  private
  def print_vertical column_index
    (@size).times do
        @numbers.each do |number|
          code_value = @display_code[number][column_index]
          case code_value
          when 'vertical_line_right' then @output.concat (' ' + ' ' * @size + '|')
          when 'vertical_line_left'  then @output.concat ('|' + ' ' * @size + ' ')
          when 'vertical_line_both'  then @output.concat ('|' + ' ' * @size + '|')
          end
        end
        @output.concat("\n") 
    end     
  end

  private
  def print_horizontal column_index
    @numbers.each do |number|
      code_value = @display_code[number][column_index]
      case code_value          
      when 'horizontal_line_no'  then @output.concat (' ' + ' ' * @size + ' ')
      when 'horizontal_line_yes' then @output.concat (' ' + '-' * @size + ' ')
      end
    end
  end

  private
  def convert_to_array_from(string_of_numbers)
    string_of_numbers.split('').map { |string_of_numbers| string_of_numbers.to_i }
  end
end

if ARGV.length == 3 && ARGV[0].match('-s') && ARGV[1].match(/\A\d+\z/) && ARGV[2].match(/\A\d+\z/)
    lcd = LCDNumber.new(ARGV[1].to_i, ARGV[2])
    lcd.print_LCD
elsif ARGV.length == 1 && ARGV[0].match(/^[0-9]+$/)
    lcd = LCDNumber.new(2, ARGV[0])
    lcd.print_LCD
else
  puts "Incorrect input"
  exit
end