Pastable version of Looking for comments on style and clearness

<pre class='prettyprint' language='ruby'># Ruby Quiz 2 - Scalable LCD Monitor 
# Gerard (smeevil) de Brieder - Govannon - 2008-06-12

class Lcd
  attr_accessor :line
    
  def initialize(numbers,scale)
    
    total_lines=5+((scale-1)*2) #compute the total output lines needed for scale (minimal 5)
    
    @lines=Array.new # build and reserve array spaces for the output lines
    total_lines.times do
      @lines &lt;&lt; &quot;&quot;
    end
    
    @scale=scale
    numbers.scan(/./).each { |number| number_builder(get_number_sequence(number)) } 
  end

def get_number_sequence(number) #converts a given number to a sequence used by number_builder
    
    case number
      when &quot;0&quot; then @sequence=&quot;24142&quot;
      when &quot;1&quot; then @sequence=&quot;15151&quot;
      when &quot;2&quot; then @sequence=&quot;25232&quot;
      when &quot;3&quot; then @sequence=&quot;25252&quot;
      when &quot;4&quot; then @sequence=&quot;14251&quot;
      when &quot;5&quot; then @sequence=&quot;23252&quot;
      when &quot;6&quot; then @sequence=&quot;23242&quot;
      when &quot;7&quot; then @sequence=&quot;25151&quot;
      when &quot;8&quot; then @sequence=&quot;24242&quot;
      when &quot;9&quot; then @sequence=&quot;24252&quot;
    end
    
    @result=''
        
    @sequence.scan(/./).each_with_index { |seq,index|
      @result+=seq
      unless index%2==0 #add extra chars for the bigger scale lcd
        (@scale-1).times{ @result+=seq }
      end
    }

return @result    
  end
  
  def number_builder(sequence) #creates an lcd number from a given sequence and adds it to the lines array
    
    dashes=&quot;&quot;
    spaces=&quot;&quot;
    @scale.times do #define spaces and vertical dash size for scale
      dashes+=&quot;-&quot;
      spaces+=&quot; &quot;
    end
    
    sequence.scan(/./).each_with_index do |s,i| #create the lcd number 
        case s
          when &quot;1&quot; then @lines[i]+=&quot; #{spaces}  &quot;
          when &quot;2&quot; then @lines[i]+=&quot; #{dashes}  &quot;
          when &quot;3&quot; then @lines[i]+=&quot;|#{spaces}  &quot;
          when &quot;4&quot; then @lines[i]+=&quot;|#{spaces}| &quot;
          when &quot;5&quot; then @lines[i]+=&quot; #{spaces}| &quot;  
        end
    end
  end
  
  def print
    @lines.each { |line| puts line unless line==''}
  end
end

def check_arguments
  
  if ARGV[0]=~/^\d+$/ 
    @scale=&quot;1&quot;
    @number=ARGV[0]
  end

if ARGV[0]=~/^-s$/ 
    @scale=ARGV[1]
    @number=ARGV[2]
  end

@scale &amp;&amp; @number &amp;&amp; @number=~/^\d+$/ ? true : false #are all arguments accepted ?
end</pre>
<pre class='prettyprint' language='ruby'>if check_arguments
  @lcd=Lcd.new(@number,@scale.to_i)
  @lcd.print
else
  print &quot;
    LCD DISPLAY
    ===========
    usage         : quiz2 -s &lt;scale&gt; &lt;number&gt;
    example       : quiz2 -s 2 12345
    -s &lt;scale&gt;     -s is optional
  &quot;
end</pre>
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Pastable version of Looking for comments on style and clearness