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Define a recursive lambda.
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| ; dump tree with a recursive lambda | |
| (funcall | |
| (fn dump-tree (e) | |
| (if (atom e) | |
| (format t "~A~%" e) | |
| (mapc #'dump-tree e))) | |
| '(1 (2 (3 (4) 5) 6) 7 (8 9))) |
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| (defmacro fn (&rest body) | |
| "(fn name? [param*] body) | |
| Define a recursive lambda." | |
| (if (listp (car body)) | |
| `(lambda ,@body) | |
| `(lambda (&rest args) | |
| (labels (,body) | |
| (apply (function ,(car body)) args))))) |
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