+ (defevaluator :normal " +\\n" (constantly "No whitespace at end of line"))
+ (defevaluator :beginning-of-line " *" (lambda () (set-state :beginning-of-symbols)))
+ (defevaluator :beginning-of-line-with-separator " *" (lambda () (set-state :beginning-of-symbols-with-separator)))
+ (defevaluator :beginning-of-symbols "\\n"
+ (lambda ()
+ (if
+ (< 0 *col-no*)
+ "No whitespace only lines"
+ (set-state :beginning-of-line-with-separator))))
+ (defevaluator :beginning-of-symbols "\\)" (constantly "No hanging close parens"))
+ (defevaluator :beginning-of-symbols-with-separator "\\)" (constantly "No hanging close parens"))
+ (defevaluator :beginning-of-symbols ""
+ (lambda ()
+ (if
+ (and (not *form-stack*) (not *form-ended-on-same-line*))
+ "Multiline top level forms must be separated by a space"
+ (set-state :normal))))
+ (defevaluator :beginning-of-symbols-with-separator ""
+ (lambda ()
+ (set-state :normal)))
+ (defevaluator :normal "\\("
+ (lambda ()
+ (push
+ (list *line-no* *col-no*)
+ *form-stack*)
+ (set-state :first-symbol-of-form)))
+ (defevaluator :normal "\\)"
+ (lambda ()
+ (let
+ ((form (pop *form-stack*)))
+ (cond
+ ((not form) "Unmatched ending paren")
+ ((< 50 (- *line-no* (car form))) "Forms can't be over 50 lines long")
+ (t (setf *form-ended-on-same-line* (= *line-no* (car form))) nil)))))
+ (defevaluator :normal "::" (constantly "No internal symbols from other packages"))
+ (defevaluator :first-symbol-of-form "\\n" (constantly "No new line after opening form"))
+ (defevaluator :first-symbol-of-form " " (constantly "No space after opening parens"))
+ (defevaluator :first-symbol-of-form "" (lambda () (set-state :normal)))
+ (defevaluator :normal "." (constantly nil)))