|
definition:
|
showPlGoal :: PlGoal -> String
showPlGoal (PlLit pred args)
| pred == "="
= showPlTerm (args!!0) ++ "=" ++ showPlTerm (args!!1)
| pred == "!" && null args
= "!"
| otherwise
= showPlTerm (PlStruct pred args)
showPlGoal (PlNeg goal) =
"\\+" ++ showSimpleGoals goal
showPlGoal (PlCond cond tgoal fgoal) =
"(" ++ showSimpleGoals cond ++ " -> " ++ showPlGoals tgoal ++ " ; " ++
showPlGoals fgoal ++ ")"
|
|
demand:
|
argument 1
|
|
deterministic:
|
deterministic operation
|
|
documentation:
|
--- Shows a Prolog goal in standard Prolog syntax.
|
|
failfree:
|
<FAILING>
|
|
indeterministic:
|
referentially transparent operation
|
|
infix:
|
no fixity defined
|
|
iotype:
|
{({PlLit}) |-> _ || ({PlNeg}) |-> _ || ({PlCond}) |-> _}
|
|
name:
|
showPlGoal
|
|
precedence:
|
no precedence defined
|
|
result-values:
|
_
|
|
signature:
|
Language.Prolog.Types.PlGoal -> String
|
|
solution-complete:
|
operation might suspend on free variables
|
|
terminating:
|
possibly non-terminating
|
|
totally-defined:
|
possibly non-reducible on same data term
|