On 17 Feb 2009, at 9:01 pm, Michael Radford wrote: > P.S. Wouldn't it be nice if regular matches had the same syntax, e.g., > X (when X < 3) = f(X) > I think "(when" is never currently legal, so it's even unambiguous. There has already been a proposal to allow (X when X < 3) = f(X) Abstract patterns would subsume this. >