Hi,
you could use a macro, but a simple function should suffice. I use
something along the lines of
(defn cond-transform [x & pairs]
(reduce (fn [x [test-fn transform-fn]]
(if (test-fn x)
(transform-fn x)
x))
x
pairs))
;; example
(cond-transform x
[test1 transform1]
[test2 transform2]
[test3 transform3])
in my project. test1,transform1,etc are functions with one argument (the
current x). transform will only be called when test returns true.
HTH,
/thomas
On Friday, July 5, 2013 2:13:05 PM UTC+2, Laurent PETIT wrote:
>
> hello,
>
> More often than not, I'm facing code looking like this:
>
> (let [x (if (test1 x) (transform1 x) x)
> x (if (test2 x) (transform2 x) x)
> x (if (test3 x) (transform3 x) x)]
> x)
>
> Do you know of a better way to write this with only clojure.core
> functions?
>
> So far, I've had no success with cond->, as->, etc.
>
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