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1ambda/gist:9509007

Last active August 29, 2015 13:57
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lisp example
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gistfile1.lisp
(defun select (selector)
(remove-if-not selector *person-db*))
(defun make-where-exprs (args)
(loop while args
collect `(equal (getf person ,(pop args)) ,(pop args))))
(defmacro where (&rest args)
`#'(lambda (person)
(and ,@(make-where-exprs args))))
;; CL-USER > (select (where :name "Hoon"))
;; ((:NAME "Hoon" :AGE 26 :ADDRESS "Seoul"))
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