Re: [Chicken-users] what is the difference between "#!rest" and "."

[Kon Lovett]

On Nov 2, 2007, at 5:09 PM, naruto canada wrote:

> hi
>
> chicken.pdf mentions "#!rest".
> I did a quick test:
> echo '((lambda (x y . z) z) 3 4 5 6)' | csi -q
> (5 6)
>
> "." seems to works as intened, why "#!rest" ?

For use w/ #!key & #!optional - DSSSL style formal parameter list.

If your optional parameters are either easy to parse (they are all of  
the same kind) or very hard to parse then just use a dotted formal  
parameter list.

Many ways to do the same thing - see let-optionals[*], case-lambda, &  
optional.

> Thanks
>
>
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Best Wishes,
Kon