SHRDLU

This is a minimally modified version of Terry Winograd's SHRDLU code from 1972.

You can try to run this by executing clisp or some equivalent in the code directory, then attempting (load "init").

Expect errors! This code is from 1972.

Current lines of work:

• Improve support for the behavior of MACLISP properties... the most glaring behavioral difference right now is that (cdr 'foo) for a symbol foo which has a property list will actually return the property list. Additionally (get 1 'asdf) will return nil for all properties. Ways of handling this:
  1. Let it run and handle cases as they come up (hopefully cdr is never used in both the sense of "get property list" and the sense of "tail of list" ...
  2. Rip out every cdr and replace it with a macro.
• Macros in morpho are acting weird... they require NOSTOP which is defined in setup and shouldn't be needed by syscom (because it is used in a function) until runtime. Need insight into current macro expansions...