code: def parse_option(self, option, block_name, *values):
          
  
          # treat arguments as part of the program name (support spaces in name)
          values = [x.replace(' ', '\\ ') if not x.startswith(os.sep) else x
                    for x in [str(v) for v in values]]
  
          if option == 'close':
              option = 'start_' + option
  
          key = option.split('_', 1)[0]
          self.paths[key] = set(common.extract_app_paths(values))
docs: Parse app path values for option.