On Sat, Jan 12, 2008 at 07:37:28PM -0800, Bob La Quey wrote:

I do not know about LISP but I have written a _lot_ of FORTH code
in the past. One extremely powerful feature of FORTH is the ability
to interrupt the compiler and then run _any_ FORTH program one wishes,
including deep introspection of the existing code in order to compute
anything, and then to return to compiling using the result that has
been computed.

To say this is powerful is a serious understatement. I am not quite
sure just how such things are done (if at all) in more conventional
languages though I suspect that it is something advanced LISPers do
all of the time.

Lisp and FORTH have a lot of similarities in this regard.  I do think that
lisp does a better job of making itself into a useful programming language,
even for large problems.

Dave

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