On Sat, Jan 8, 2011 at 9:15 PM, Andreas Kostler
<[email protected]> wrote:
> Basically, I want the clojure equivalent of a clisp atom.
> In clisp, atom is true for everything that is not a cons cell.
> The closest match I found is creating a macro that returns true for
> everything that is not a list:
> clisp:
>
> (atom 1) => true
> (atom '(1 2 3)) => false
>
> I hope that makes things clearer :)
> Andreas
Sounds like you really just want
(defn atom? [x]
(not
(or
(instance? java.util.Collection x)
(instance? java.util.Map x))))
which returns true for integers, strings, and pretty much any other
objects except lists, seqs, vectors, maps, sets, and the like (and
their mutable java.util counterparts).
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