text: from video_scripts.video_processor import *
  
  step = parse_line('# just a comment')
  print('1:', step)
  
  step = parse_line('file path/to/file.avi')
  print('2:', step)
  if isinstance(step, FileSpec):
      print(step.path, step.start, step.end)
  
  
  step = parse_line('file path/to/file.avi -s 20 -e 44.5')
  print('3:', step)
  if isinstance(step, FileSpec):
      print(step.path, step.start, step.end)
  
  
  step = parse_line('set-video -gamma 1.4 -abc Abc ')
  print('4:', step)
  if isinstance(step, OptionSpec):
      print(step.what, step.params)
  
  
  step = parse_line('set-video -crop 1792,896,64,128 -scale 1280,640 -gamma 1.4 -speed 4 -textlist a,bc,d')
  print('5:', step)
  if isinstance(step, OptionSpec):
      print(step.what, step.params)
  
  step = parse_line('set-video -cited "Ala ma kota"')
  print('6:', step)
  if isinstance(step, OptionSpec):
      print(step.what, step.params)
  
  step = parse_line('set-video -cited "Ala ma kota" -normal Ola')
  print('7:', step)
  if isinstance(step, OptionSpec):
      print(step.what, step.params)
  
  
  