Question: Does VAR match input? Uses (or updates) and returns bindings. ( l e t ((binding (get-binding var bindings))) (cond ((not binding) (extend-bindings var input bindings))
"Does VAR match input? Uses (or updates) and returns bindings."
( l e t ((binding (get-binding var bindings)))
(cond ((not binding) (extend-bindings var input bindings))
((equal input (binding-val binding) bindings)
(t f a i l ) ) ) )
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