10.3 Listener commands
1. Type (* 5 5)
and then
2. Type :use + *
A copy of the previous event is extracted from the history list, and its *
is replaced by a +
. The new expression, (+ 5 5)
is evaluated, yielding a 10
.
CL-USER 10 > (* 5 5) 25 CL-USER 11 > :use + * (+ 5 5) 10 CL-USER 12 >
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