paragshah.rb

def calc(h,m,s,ms,op,t1,t2)
  ts = t1
  tms = t2
	
  if op==1
     
     total_s =s+ts
     total_m= 0
     total_h= 0
     total_ms = ms+tms 
     
     if total_ms > 999
       total_s = total_s+1
       total_ms = total_ms - 1000          
            
            if total_s > 59
              total_m = total_m+1+m  
              total_s = total_s - 60
              
               if total_m > 59
               total_h = total_h+1+h  
               total_m = total_m - 60
               end 
                
            end
          
      end 
    
     if total_h < 9
       total_h = "0"+total_h.to_s
       else
        total_h = total_h.to_s
      end
    
     if total_m < 9
       total_m = "0"+total_m.to_s
       else
        total_m = total_m.to_s
      end
     
     if total_s < 9
       total_s = "0"+total_s.to_s
       else
        total_s = total_s.to_s
      end
     
     if total_ms < 9
       total_ms = "00"+total_ms.to_s
       elsif total_ms =tms
	     total_ms = ms-tms 
	     else
	     tmp = tms-ms
	     total_ms = 1000-tmp
	     total_s = total_s-1	     	
	     end		
	     
	     newt = ts+total_s
	     if s>= newt  
	     		if newt 59
          total_m = total_m-1-m  
          total_s = total_s - 60
          
           if total_m > 59
           total_h = total_h-1-h  
           total_m = total_m - 60
           end 
            
        end
	          
	     if total_h < 9
	       total_h = "0"+total_h.to_s
	       else
	        total_h = total_h.to_s
	      end
	    
	     if total_m < 9
	       total_m = "0"+total_m.to_s
	       else
	        total_m = total_m.to_s
	      end
	     
	     if total_s < 9
	       total_s = "0"+total_s.to_s
	       else
	        total_s = total_s.to_s
	      end
	     
	     if total_ms < 9
	       total_ms = "00"+total_ms.to_s
	       elsif total_ms ')
            st = temp[0].strip
            et = temp[1].strip
            
            
            temp = st.split(':')
            hh1 = temp[0].strip
            mm1 = temp[1].strip 
            ss1 = temp[2].strip
            
            temp = ss1.split(',')
            ss1 = temp[0].strip
            ms1 = temp[1].strip

            temp = et.split(':')
            hh2 = temp[0].strip
            mm2 = temp[1].strip 
            ss2 = temp[2].strip
                
            temp = ss2.split(',')
            ss2 = temp[0].strip
            ms2 = temp[1].strip
    
                       
                if options.operation == :add
                op=1
                else
                op=0
                end

            final1 = calc(hh1.to_i, mm1.to_i, ss1.to_i, ms1.to_i,op,ts.to_i,tms.to_i)
            final2 = calc(hh2.to_i, mm2.to_i, ss2.to_i, ms2.to_i,op,ts.to_i,tms.to_i)
           
            otext = final1+' --> '+final2
                
          end  
    end  
  
		File.open(output_file, 'w') do |f2|  
    f2.puts otext
		end  

  end 

end 

options = ShiftSubtitle.parse(ARGV)