lcd_incomplete.rb

#!/usr/bin/env ruby

class Display
  def initialize(integer, scale, lcds)
    @integer = integer
    @scale = scale
    @lcds = lcds
  end
  
  def showargs
    puts "  The integer is #{@integer} with a scale of #{@scale}  ".center(60,'*')
  end
  
  # Display the LCD integer
  def display
    digits = @integer.chars.map { |n| @lcds[n.to_i] }
    digits.each do |digit|
      digit.each do |row|
        # Scale horizontally
        row[1, 1] = row[1, 1] * @scale
      end
      digit.each do |row|
        # Scale vertically    
        if row =~ /\|/
          @scale.times { puts row }
        else
          puts row
        end
      end
    end
  end
end

# Fetching the arguments
if ARGV.size == 2
  num = ARGV[0]
  scale = ARGV[1].to_i
elsif ARGV.size == 1
  scale = 1
  num = ARGV[0]
# Printing message to explain the program if no arguments
else
  puts "  This program accepts 1 or 2 arguments  ".center(60,'*')
  puts " lcd <integer to scale> [ <scale> DEFAULT=1 ]"
  exit
end

template = [

[' - ',
'| |',
'  ',
'| |',
' - '],

['  ',
'  |',
'  ',
'  |',
'  '],

[' - ',
'  |',
' - ',
'| ',
' - '],

[' - ',
'| ',
' - ',
'| ',
' - '],

['  ',
'| |',
' - ',
'  |',
'  '],

[' - ',
'| ',
' - ',
'  |',
' - '],

[' - ',
'| ',
' - ',
'| |',
' - '],

[' - ',
'  |',
'  ',
'  |',
' '],

[' - ',
'| |',
' - ',
'| |',
' - '],

[' - ',
'| |',
' - ',
'  |',
' - ']

]

lcd = Display.new(num, scale, template)
lcd.display
lcd.showargs