The prompt printed by ld
The prompt printed by ACL2 conveys information about various
``modes.'' See default-print-prompt and see ld-prompt for
The prompt during raw Lisp breaks is, with most Common Lisp
implementations, adjusted by ACL2 to include the string "[RAW LISP"],
in order to reminder users not to submit ACL2 forms there; see breaks.
For Lisps that seem to use the same code for printing prompts at the top-level
as in breaks, the top-level prompt is similarly adjusted. For Lisps
with the above prompt adjustment, The following forms may be executed in raw
Lisp (i.e., after typing :q).
(install-new-raw-prompt) ; install prompt with [RAW LISP] as described above
(install-old-raw-prompt) ; revert to original prompt from host Common Lisp