flex Expert System Toolkit - LPIS

Appendix C - KSL Keyword Glossary 208
do
see also include and while
KSL Context Sentence
Description Prefix to a directive.
Used with action
Example action jug_update ;
do the contents of the jug := 7.5 and
the position of the jug := upright .
KSL Context
Description
Example
Formula
An optional prefix to a directive.
if ... then do danger_level is red
does
see include.
doing
KSL Context
Description
Used with
Example
Sentence
Used in ruleset to define a set of actions to be
performed prior to forward chaining.
initiate by
ruleset start
contains all rules ;
initiate by doing restart .
each
KSL Context Sentence
Description Used in ruleset to remove, promote or demote each
selected rule from the rule agenda.
Used with update ruleset by [removing,
promoting, demoting], selected rule
Example
ruleset spelling_checker
contains all rules ;
update ruleset by demoting each
selected rule .
else
KSL Context Object
Description Indicates the alternative object within an IF-THEN-
ELSE construct.
Used with if, then
Example the result is if parameter > 0 then 1
else 0
empty
see nothing / nobody.
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