The following predicates are available if SWI-Prolog is linked to the
GNU readline library. This is by default the case on non-Windows
installations and indicated by the Prolog flag readline.89plwin.exe
uses its own history system and does not support these
predicates. See also readline(3)
Read a readline initialisation file. Readline by default reads
/.inputrc. This predicate may be used to read alternative
readline initialisation files.
Add a line to the Control-P/Control-N history system of the readline
Write current history to FileName. Can be used from at_halt/1
to save the history.
Read history from FileName, appending to the current history.