[r6rs-discuss] Re: r6rs-discuss Digest, Vol 2, Issue 8

[Jason Orendorff]

On 2 Oct 2006, Marcin 'Qrczak' Kowalczyk wrote:
> If any sorting is adopted, I call for making Schwartzian transform
> available. People must not be advised to pass
>    (lambda (x y) (< (car x) (car y)))
> as the comparison. They should pass
>    car <
> as two separate arguments (or just car with < being the default).

I find this feature *almost* indispensible, but I would happily
dispense with it (for a few years at least) rather than be left with
the status quo.

Eli Barzilay wrote:
> I think that the `sort' issue is hopeless, since there are many
> features you need to make everyone happy.

This committee knows it isn't going to "make everyone happy", and it
has made bold changes nonetheless.  I remain resolutely optimistic.

> Some Lisp implementations will do something similar when
> receiving a `:key' argument.

This feature is actually in Common Lisp.  I agree it's useful.

http://www.lisp.org/HyperSpec/Body/fun_sortcm_stable-sort.html

-j