2009/11/15 Angel Java Lopez <ajlopez2...@gmail.com>:
[...]
> (defn spread
> {:private true}
> [arglist]
> (cond
> (nil? arglist) nil
> (nil? (next arglist)) (seq (first arglist))
> :else (cons (first arglist) (spread (next arglist)))))
>
> Where is defined :else keyword behaviour? I can't find how :else is defined
> to be managed in cond/if code
I don't know about your other questions, but I believe :else could be
replace by anything that is logically true. It's just a convention to
use ":else".
user=> (cond (zero? 42) "42 is zero"
:else "42 is not zero")
"42 is not zero"
user=> (cond (zero? 42) "42 is zero"
true "42 is not zero")
"42 is not zero"
user=> (cond (zero? 42) "42 is zero"
:something-that-is-logically-true "42 is not zero")
"42 is not zero"
user=> (cond (zero? 42) "42 is zero"
"otherwise, if the above is not true, then" "42 is not zero")
"42 is not zero"
--
Michael Wood <esiot...@gmail.com>
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