(assert-curr-char '(#\@) "start of the command" port)
(let ((peeked (peek-char port)))
(cond
- ((memq peeked '(#\! #\. #\? #\@ #\\ #\{ #\}))
+ ((memq peeked '(#\! #\: #\. #\? #\@ #\\ #\{ #\}))
;; @-commands that escape characters
(make-token 'STRING (string (read-char port))))
(else