Example: SELECT

Note that the backquote doesn’t have to be at top-level. Also note the use of the dot (.) in the body which means that the list that follows should be spliced into the current list.

(define-macro (select object . clauses)

(append '(cond)

(map

(lambda (clause)

`((equal? (car ',clause) ,object)

. ,(cdr clause)) )

clauses)))

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