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deque-blog/dsl_arithmetic_4_print_expr.clj

Last active January 22, 2017 17:53
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dsl_arithmetic_4_print_expr.clj
(defn print-expr [expr]
(walk/postwalk
(fn algebra [e]
(cond
(cst? e) (str e)
(sym? e) e
(add? e) (str "(+ " (string/join " " (rest e)) ")")
(mul? e) (str "(* " (string/join " " (rest e)) ")")
:else e))
expr))
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