[stepvhen]

any array talk on HN is fine with me. its an opaque topic and more posts means more illumination.

whats particularly interesting is this is implemented in perl, and from a quick look pretty well formatted perl. which, for somebody who might be interested in array languages, would make it a much more palatable starting point for understanding how they are built as opposed to the actual arcane wizardry that is the J source code. whats more, with this laguage operating with a stack and not infix, its parsing can be more easily understood, and in turn, reimplemented. J and APL, on the other hand, are context sensitive, and require more detailed understanding to implement.