view 6-Clojure/macro.clj @ 93:39084e2b8744

Add a function for word-aware text wrapping Potentially hugely inefficient because we iterate through the string character by character, but then splitting it first and iterating over words still needs to iterate over the string to know where to split.
author IBBoard <dev@ibboard.co.uk>
date Tue, 18 Jun 2019 21:05:00 +0100
parents eccc649d49a2
children
line wrap: on
line source

(defmacro unless [test body]
    (list 'if (list 'not test) body))

(macroexpand '(unless condition body))

(unless true (println "Should not print"))
(unless false (println "Should print"))