-(define client-beh
- (let ((name "name")
- (recipients '()))
-
- (lambda (self . message)
- (match message
- (('start)
- (send-message system 'print "Welcome to chat!\n"
- "Your client address is " self ".\n"
- "Type '/help' for a list of commands.\n")
- (send-message system 'read self))
- (('show-msg from text)
- (send-message system 'print "Message from " from ": " text))
- (((? string? str))
- (if (string-prefix? "/" str)
- (let* ((maybe-idx (string-index str #\space))
- (idx (if maybe-idx maybe-idx (string-length str)))
- (cmd (substring str 1 idx))
- (arg (string-trim (substring str idx))))
- (match cmd
- ((or "h" "help")
- (send-message system 'print
- "Command | Description\n"
- "------------------------------\n"
- "/help List commands\n"
- "/name Name Set name to use in chat.\n"
- "/join <address> Join chat with specified client\n"
- "/clear Clear recipients\n"
- "/list List current recipients\n"
- "/quit Quit chat"))
- ((or "j" "join")
- (if (string-null? arg)
- (send-message system 'print "Missing address of client.")
- (begin
- (set! recipients (cons arg recipients))
- (send-message system 'print "Added recipient to chat."))))
- ((or "c" "clear")
- (set! recipients '())
- (send-message system 'print "Cleared recipient list."))
- ((or "n" "name")
- (set! name arg)
- (send-message system 'print "Name now set to '" name "'."))
- ((or "l" "list")
- (if (null? recipients)
- (send-message system 'print "Recipients list empty.")
- (begin
- (send-message system 'print "Current recipients:")
- (let loop ((recipients-left recipients))
- (unless (null? recipients-left)
- (send-message system 'print (car recipients-left))
- (loop (cdr recipients-left)))))))
- ((or "q" "quit")
- (send-message system 'shutdown))
- (else
- (send-message system 'print "Unrecognised command '" cmd "'"))))
- (if (null? recipients)
- (send-message system 'print "Speaking to the void.")
- (let loop ((recipients-left recipients))
- (unless (null? recipients-left)
- (send-message (car recipients-left) 'show-msg name str)
- (loop (cdr recipients-left))))))))
- (send-message system 'read self)
- 'sleep)))
+(define (make-rollodex-beh system)
+ (let ((recipients '()))
+ (make-beh (self)
+ (('list) =>
+ (if (null? recipients)
+ (send-message system 'print "Recipients list empty.")
+ (begin
+ (send-message system 'print "Current recipients")
+ (let loop ((r recipients))
+ (unless (null? r)
+ (send-message system 'print (address->string (car r)))
+ (loop (cdr r)))))))
+ (('clear) =>
+ (set! recipients '())
+ (send-message system 'print "Cleared recipient list."))
+ (('add rstr) =>
+ (set! recipients (cons (string->address rstr) recipients))
+ (send-message system 'print "Added recipient to chat."))
+ (('send name str) =>
+ (if (null? recipients)
+ (send-message system 'print "Speaking to the void.")
+ (let loop ((recipients-left recipients))
+ (unless (null? recipients-left)
+ (send-message (car recipients-left) 'show-msg name str)
+ (loop (cdr recipients-left))))))
+ (finally
+ 'sleep))))
+
+(define (make-receiver-beh system)
+ (make-beh (self)
+ (('show-msg from text) =>
+ (send-message system 'print from "> " text)
+ 'sleep)))
+