+let empty = {
+ reco = StateSet.empty;
+ selec = StateSet.empty;
+ bottom = StateSet.empty;
+ top = StateSet.empty;
+ trans = SetT.empty;
+}
+
+let any_label = QNameSet.complement (QNameSet.empty)
+
+let new_state () = State.make()
+
+let add_tr ast tr = ast.trans <- (SetT.add tr (ast.trans))
+
+let add_reco ast st = ast.reco <- (StateSet.add st (ast.reco))
+
+let add_selec ast st = ast.selec <- (StateSet.add st (ast.selec))
+
+let add_bot ast st = ast.bottom <- (StateSet.add st (ast.bottom))
+
+let add_top ast st = ast.top <- (StateSet.add st (ast.top))
+
+let top_states ast = StateSet.elements ast.top
+
+let print fmt asta =
+ let pp = Format.fprintf fmt in
+ pp "Recognizing states: ";
+ StateSet.print fmt asta.reco;
+ pp "\nSelecting states: ";
+ StateSet.print fmt asta.selec;
+ pp "\nBottom states: ";
+ StateSet.print fmt asta.bottom;
+ pp "\nTop states: ";
+ StateSet.print fmt asta.top;
+ pp "\nTransitions: \n";
+ Format.fprintf fmt "{@[<hov 2> %a @]}" (* todo: check boxes *)
+ (Pretty.print_list ~sep:"@, " (Transition.print))
+ (SetT.elements (asta.trans))
+