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October 10, 2022 17:34
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Process command line flags. So simple. Who needs docopt, click, fire, argparse, etc?
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| (defun argv () sb-ext:*posix-argv*) | |
| (defmacro while (expr &body body) | |
| `(do ((now ,expr ,expr)) ((not now)) ,@body)) | |
| (defun deepcopy (x) | |
| (if (atom x) x (mapcar #'deepcopy x))) | |
| (defun cli (flags &key | |
| (help "help") | |
| (args (cdr (deepcopy (argv)))) | |
| (group (getf flags 'all))) | |
| (while (pop args) | |
| (setf now (read-from-string (remove #\- now))) | |
| (cond ((getf group now) (assert (not (null args)) (args)) | |
| (setf (getf group now) | |
| (read-from-string (pop args)))) | |
| ((getf flags now) (setf group (getf flags now))) | |
| ((member now group) (setf (getf group now) t)) | |
| ((equalp now 'h) (format t "~a~%" help)))) | |
| flags) | |
| (defun eg.cli(_) | |
| "demo cli" | |
| (pprint | |
| (cli '(all (fails 0 tries 0 | |
| seed 10013 | |
| data "../data/aa" | |
| loud nil un nil) | |
| col (p 2) | |
| dom (samples 100 | |
| k 23))))) |
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