flex Expert System Toolkit - LPIS

9. Flex Predicates 153
flex toolkit
Clear from the workspace all watchdogs.
remove_watchdogs( +Attribute,+Frame )
restart
run_data
Clear from the workspace all watchdog procedures associated with an
Attribute of a Frame.
Example
remove_watchdogs( _, account ) .
Clear the workspace of all instances, slot values, all facts and all exceptions,
re-enable all rules and finally run all data directives. It is defined by the
program:
restart :-
remove_instances,
remove_slots,
remove_facts,
remove_exceptions,
enable_rules,
run_data.
Invoke the actions associated with all data directives. If any action fails then
a message to indicate this is written to the current output stream.
run_data( +Name )
Invoke the action associated with the data Name. If the action fails then a
message to indicate this is written to the current output stream.
Example
run_data( start_up_configuration ) .
some_instance( +Name,?Element )
Retrieve (or check) an Element which is an instance of Name. Name can be
the name of a group, the name of a frame or an instance or the name of a
unary relation (e.g. a type predicate in Prolog).
Examples
?- some_instance( colours, E ).
E = black
E = blue
E = green
etc.