example.lsp: Replace (block) and (return-from) to (quit)

example.lsp

@@ -1,8 +1,7 @@
-(block main
 (if (< (length *argv*) 2)
   (progn
     (format (error-output) "Usage: ~A ~A {SSH-OPTIONS} USERNAME@DOMAIN PASSWORD~%" *executable-name* *program-name*)
-      (return-from main nil)))
+    (quit 1)))
 
 (let* ((ssh-param (subseq *argv* 0 (- (length *argv*) 1)))
        (password (elt *argv* (- (length *argv*) 1)))
@@ -11,7 +10,7 @@
   (with-handler
     (lambda (c)
       (format (error-output) "ssh is not found~%")
-        (return-from main nil))
+      (quit 2))
     (setq sshpid (apply #'spawn "ssh" ssh-param)))
 
   (expect*
@@ -19,26 +18,29 @@
      (sendln "yes")
      (expect "password:")
      (sendln password))
+
     ("password:"
      (sendln password))
+
     (("Connection refused"
       "Could not resolve hostname")
-       (return-from main nil))
+     (quit 3))
+
     (30
      (format (error-output) "TIME OUT~%")
-       (return-from main nil)))
+     (quit 4)))
 
   (expect*
     ("Permission denied"
      (expect "password:")
      (send #\U3)
      (wait sshpid)
-       (return-from main nil)
+     (quit 5))
+
+    ("$ ")
     )
-      ("$ "))
   (sendln "echo YOU CAN CALL SOME COMMAND HERE")
   (expect "$ ")
   (sendln "exit")
   (wait sshpid)
   )
-  )