I learned a lot. Thanks.

Best Regards
Shen Feng


On Wed, Jul 27, 2011 at 8:50 PM, Feng Shen <shen...@gmail.com> wrote:

> Clojure core.clj has a macro when-let,
> I am wondering how to write a macro `when-lets`
>
> (when-lets [symbol-1 test-1
>                   symbol-2 test-2
>            ...
>            ]
>           body
>           )
>
> body only get evaluated when (and test-1 test-2 ....)
> I am thinking about it, anybody has any clue?

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