Baby.lisp
In our household, a baby just ain't a baby without an appropriately geeky birth announcement. And since Nick is mostly functional — I mean, he can't exactly type yet — this one is in Lisp. Share and enjoy!
; This program forks(). That should be plenty for a few years' entertainment
; Copyright (C) 2007 Kirk & Jennifer Strauser
; This program is free software: you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation, either version 3 of the License, or
; (at your option) any later version.
; However, the output of this particular instance shall remain
; exclusively licensed to the authors for a period of up to eighteen
; years.
; $Id: baby.lisp 4 2007-09-05 23:18:12Z kirk $
(require :sb-posix)
(defvar *birthtime* (encode-universal-time 0 20 1 1 9 2007))
(defvar *age* (- (get-universal-time) *birthtime*))
(defun hello ()
(format t "Hello, world! My name is Nicholas Arthur Strauser and this is ~
my ~:r day!~%" (ceiling (/ *age* 86400))))
(defun labor ()
(cond
((zerop (sb-posix:fork)) (format t "Ouch!~%"))
(t (hello))))
(defun wait ()
(cond
((< *age* 0)
(sleep (- *age*))
(setf *age* 0)
(labor))
(t (hello))))
(wait)