chickadee » ck-macros » c-quasiquote

Implements quasiquotation. Added in version 0.3.0.

The core ck macro has special support for converting (quasiquote x) (also written as `x) into (c-quasiquote 'x). Within a call to c-quasiquote, you can use (unquote y) (also written as ,y) and (unquote-splicing z) (also written as ,@z). They are supported inside vectors as well as inside pairs/lists.

;; These expressions are exactly equivalent:
(ck () `(define (foo) (list ,@(c-list '1 '2) ,(c-vector '3))))
(ck () (c-quasiquote '(define (foo) (list ,@(c-list '1 '2) ,(c-vector '3)))))
;; ==> (define (foo) (list 1 2 #(3)))

(ck () `#(1 ,@(c-list '2 '3)))
(ck () (c-quasiquote '#(1 ,@(c-list '2 '3))))
;; ==> #(1 2 3)