On Sun, Mar 11, 2007 at 03:43:39PM +0100, Michael Sperber wrote: > worth the cost. As I don't use `when' and `unless', it's clear that > they're not worth the cost to me. I wonder what others think.
I'm indifferent about "when": (if (...) (begin ...)) is common enough that something to reduce one level of nesting makes sense, but it's not a big deal for me. However, the additional value of "unless" seems negligible. It's not a big deal to add a "not", and in many cases (e.g. comparisons) a negative predicate is directly available anyway. The utility doesn't seem to justify yet another special form. Lauri _______________________________________________ r6rs-discuss mailing list [email protected] http://lists.r6rs.org/cgi-bin/mailman/listinfo/r6rs-discuss
