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Lisp/Scheme  |  1994-02-21  |  217b  |  11 lines

  1. (defun C:myline ()
  2.     (setq e 1)
  3.     (while e
  4.       (setq pt1 (getpoint"\nPick the first point  "))
  5.       (if (= pt1 nil)
  6.         (prompt "\nYou didn't pick a point  ")
  7.         (setq e nil)
  8.       )
  9.     )
  10. )
  11.