what does the following part in the code do.
(module+ main
(require racket/cmdline)
;; By default, use 9999 as the port. This can be overridden
;; at the command line.
(define current-port (make-parameter 9999))
(void (command-line
#:once-each [("-p" "--port") p "Port"
(current-port (string->number p))]))
(start-server #:port (current-port)))
____________________ Racket Users list: http://lists.racket-lang.org/users
