Into the Arc: Error Trapping
by Lee Calcraft

Running !Errors runs the Basic program !Errors.IntoArc2. The program asks the user to insert a disc and press a key. It then attempts to catalogue the disc in drive 0. If the drive is empty, the program informs the user and repeats the prompt. The program terminates when a disc has been catalogued or the user presses Escape.

The program !Errors.IntoArc1 demonstrates how to trap Escape errors to return to the start of the program when Escape is pressed. It can be run by double clicking on !Errors with Shift depressed, then double clicking on IntoArc1.
