:FAIL
Purpose
Inverts the success or failure result of a clause.
Parameters
- clause
- A clause to be evaluated.
Examples
(:FAIL (color ?x green))
(:FAIL (:RETRIEVE (color ?x ?y)))
(:FAIL (:TEST (:LISP (> ?length 10)))
Success criteria
Succeeds if the clause does not succeed.
Failure criteria
Fails if the clause succeeds.
Notes
Related commands
All commands can be used in the clause parameter of :FAIL.
Back to...
Algernon commands
Algernon Documentation Central
Algernon home page