def run
      show_result @parser_class.parse!(ARGF.read)
    rescue Rattler::Runtime::SyntaxError => e
      puts e
    end
def run
      show_result @parser_class.parse!(ARGF.read)
    rescue Rattler::Runtime::SyntaxError => e
      puts e
    end
Create a new command line interface for the given parser class

 @param [Class] parser_class the parser class to run the command line
   interface for
 Run the command line interface