On Jul 17, 2008, at 8:54, Jonathan S. Shapiro wrote: > If anybody has strong objections, we need to hear them!
This is not an objection, but a "have you thought about this?". > As we have been writing code, I find increasingly that I want to be > able > to use a two-legged if. In functional programs this form has fairly > limited value, but in stateful programs it is a very common idiom. ... > a derived form returning unit: > > (if e-test e-then) => > (if e-test (begin e-then ()) ()) Have you considered instead introducing a separate operator with an implicit begin, allowing multiple forms in the body, since this is often useful in such imperative code? Common Lisp calls this WHEN. (when e-test e-then*) => (if e-test (begin e-then* ()) ()) (using * to denote repetition; I don't know your preferred notation) -- Kevin Reid <http://homepage.mac.com/kpreid/> _______________________________________________ bitc-dev mailing list [email protected] http://www.coyotos.org/mailman/listinfo/bitc-dev
