altos: Escape lisp REP loop with () input
authorKeith Packard <keithp@keithp.com>
Sun, 9 Apr 2017 19:55:34 +0000 (12:55 -0700)
committerKeith Packard <keithp@keithp.com>
Sun, 9 Apr 2017 19:55:34 +0000 (12:55 -0700)
Provide a way to get out of a lisp read-eval-print loop that can be
easily input from the keyboard.

Signed-off-by: Keith Packard <keithp@keithp.com>

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