add target option to command line, fix | when its last char on line

cl-forth.lisp

@@ -46,12 +46,12 @@
           (let ((flag t))
             (cond ((char= #\|  next-char)
                    (read-char line-stream)
-                   (if (char-equal #\Space
-                                   (peek-char nil line-stream nil nil))
-                       (collect (make-token :pipe line-num col :identifier)
-                         into tokens)
-                       (progn (unread-char #\| line-stream)
-                              (setf flag nil))))
+                   (let ((peeked (peek-char nil line-stream nil nil)))
+                     (if (or (not peeked) (char-equal #\Space peeked))
+                         (collect (make-token :pipe line-num col :identifier)
+                           into tokens)
+                         (progn (unread-char #\| line-stream)
+                                (setf flag nil)))))
                   ((char= #\Space next-char) (read-char line-stream))
                   ((char= #\; next-char) ;; and not in string
                    (finish))