Implemented requirement parsing.

include/plasp/pddl/Requirement.h

@@ -1,6 +1,8 @@
 #ifndef __PLASP__PDDL__REQUIREMENT_H
 #define __PLASP__PDDL__REQUIREMENT_H
 
+#include <plasp/utils/Parser.h>
+
 namespace plasp
 {
 namespace pddl
@@ -12,28 +14,36 @@ namespace pddl
 //
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
-enum class Requirement
+struct Requirement
 {
-	STRIPS,
-	Typing,
-	NegativePreconditions,
-	DisjunctivePreconditions,
-	Equality,
-	ExistentialPreconditions,
-	UniversalPreconditions,
-	QuantifiedPreconditions,
-	ConditionalEffects,
-	Fluents,
-	NumericFluents,
-	ADL,
-	DurativeActions,
-	DurationInequalities,
-	ContinuousEffects,
-	DerivedPredicates,
-	TimedInitialLiterals,
-	Preferences,
-	Constraints,
-	ActionCosts
+	enum class Type
+	{
+		STRIPS,
+		Typing,
+		NegativePreconditions,
+		DisjunctivePreconditions,
+		Equality,
+		ExistentialPreconditions,
+		UniversalPreconditions,
+		QuantifiedPreconditions,
+		ConditionalEffects,
+		Fluents,
+		NumericFluents,
+		ADL,
+		DurativeActions,
+		DurationInequalities,
+		ContinuousEffects,
+		DerivedPredicates,
+		TimedInitialLiterals,
+		Preferences,
+		Constraints,
+		ActionCosts
+	};
+
+	static Requirement::Type fromPDDL(utils::Parser &parser);
+
+	static void toPDDL(std::ostream &ostream, Requirement::Type requirementType);
+	static void toASP(std::ostream &ostream, Requirement::Type requirementType);
 };
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////