The Mini-Trace Package:
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The following 4 functions (all FEXPRs) are defined:
(they each redefine the functions, saving an old definition)
TR ([F:id]) Cause TRACE message to be printed on entry to
and exit from calls to the functions F1 ... Fn.
UNTR ([F:id]) Restore original definitions
BR ([F:id]) Cause BREAK on entry and on exit from functions,
permitting arguments and results to be examined
and modified.
UNBR ([F:id]) Restore original definitions of the functions
F1 ... Fn.
Fluids:
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TrSpace!* Controls indentation, may need to be reset to 0
in "funny" cases.
!*NoTrArgs Set to T to suppress printing of arguments of
traced functions.
[See also the Full DEBUG package (do Help Debug; in RLISP, (Help
Debug) in LISP).]