but the rest of the compiling process is hosed
(although the parser itself should still be fine).

The configuration object is unifying a lot of work
that was scattered around either the interpreter or
the scopes, and it simplifies the whole system.

However, its new simplicity has made the complexity
of the rest of the system that much more apparent,
and I am resolved to fixing the system rather than
hacking it sufficiently to just make it work.

and knows how to retrieve data from those sources.  Now I just need to fix
the language stuff to use this handler instead of the existing node stuff.

This has required splitting the interpreter up considerably, which is much
cleaner but is a large project.  There is now a 'nodes' handler, but it is
currently non-functional, although all the support structure is there.  It just
needs to have the individual methods fleshed out, and it needs to be connected
to the 'facts' handler.