I see your point about the bad interaction between indentation-based block delimitation and parens for function parameter delimitation. But I think something l

I see your point about the bad interaction between indentation-based block delimitation and parens for function parameter delimitation. But I think something like Ruby's block syntax should be doable, and probably you can even pass multiple blocks, with some limitations on which parameters can receive them. Here's another shot at it, just for fun: http://codepad.org/mVigj978 http://codepad.org/mVigj978