Hi Anders,
(defmacro def-name [name-vec & body]
`(let ~(vec (interleave (map symbol name-vec)
name-vec))
~@body))
user=> (macroexpand '(def-name ["a" "b" "c"] 1 2 3))
(let* [a "a" b "b" c "c"] 1 2 3)
user=> (def-name ["a" "b" "c"] a)
"a"
user=> (def-name ["a" "b" "c"] b)
"b"
user=> (def-name ["a" "b" "c"] (str a b))
"ab"
Best,
Alex
On Tue, Jul 23, 2013 at 12:18 AM, <[email protected]> wrote:
> Hi,
> I want to write a macro that introduces new variables from data.
> The data is a vector and looks like this for example: ["a" "b" "c"]
>
> I want to use the macro like this:
> (def-names ["a" "b" "c"] (str a b))
>
> What code I want the macro to produce from the above is the following:
> (let [a "a"
> b "b"
> c "c"]
> (str a b))
>
> Is it possible to do that?
> Is it a good thing to do that or is it bad practice?
>
> Thanks
> --anders
>
>
>
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