Call Goal , but suspend the debugger while Goal is executing. The current implementation cuts the choicepoints of Goal after successful completion. Put a spy point on all predicates meeting the predicate specification Pred . See section 3.3 . Name or a list of these.
Name succeeds or fails according to the current setting.
Set the ports shown by the debugger. Default is full . Unify Old with the current value of the unknown system flag. On success New will be used to specify the new value. Default is trace .