CASE

• Key-form is evaluated to produce a test-key

• match is established if the result of the evaluation is eql to a key of the clause

• first element of final clause may be t or otherwise, either of which assures a match

(case x

((1 5)(print 'odd)(print "less than 7"))

(2 (print 'two)(print 'twin))

((3 6 9)(print "multiple of 3"))

(otherwise (print 'ok)))

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