;; (ffap-machine-p "mathcs" 5678 nil 'ping)
;; (ffap-machine-p "foo.bonk" nil nil 'ping)
;; (ffap-machine-p "foo.bonk.com" nil nil 'ping)
- (if (or (string-match "[^-[:alnum:].]" host) ; Illegal chars (?)
+ (if (or (string-match "[^-[:alnum:].]" host) ; Invalid chars (?)
(not (string-match "[^0-9]" host))) ; 1: a number? 2: quick reject
nil
(let* ((domain