Yeah, the unary operators can cause gotchas. Also, here's a gotcha I've run into where `a(b)` is considered different from `a (b)` x a(b), c # => x(a(b), c);

Yeah, the unary operators can cause gotchas. Also, here's a gotcha I've run into where `a(b)` is considered different from `a (b)` x a(b), c # => x(a(b), c); x a (b), c # => x(a(b, c));