--- /dev/null
+open Format
+
+type t = {
+ id : Uid.t;
+ mutable states : StateSet.t;
+ mutable top_states : StateSet.t;
+ mutable bottom_states: StateSet.t;
+ mutable selection_states: StateSet.t;
+ transitions: (State.t, (QNameSet.t*Formula.t) list) Hashtbl.t;
+}
+
+let next = Uid.make_maker ()
+
+let create () = { id = next ();
+ states = StateSet.empty;
+ top_states = StateSet.empty;
+ bottom_states = StateSet.empty;
+ selection_states = StateSet.empty;
+ transitions = Hashtbl.create 17;
+ }
+
+let add_trans a q s f =
+ let trs = try Hashtbl.find a.transitions q with Not_found -> [] in
+ let rem, ntrs =
+ List.fold_left (fun (rem, atrs) ((labs, phi) as tr) ->
+ let nlabs = QNameSet.inter labs rem in
+ if QNameSet.is_empty nlabs then
+ (rem, tr :: atrs)
+ else
+ let nrem = QNameSet.diff rem labs in
+ nrem, (nlabs, Formula.or_ phi f)::atrs
+ ) (s, []) trs
+ in
+ let ntrs = if QNameSet.is_empty rem then ntrs
+ else (rem, f) :: ntrs
+ in
+ Hashtbl.replace a.transitions q ntrs
+
+
+let print fmt a =
+ fprintf fmt
+ "Unique ID: %i@\n\
+ States %a@\n\
+ Top states: %a@\n\
+ Bottom states: %a@\n\
+ Selection states: %a@\n\
+ Alternating transitions:@\n"
+ (a.id :> int)
+ StateSet.print a.states
+ StateSet.print a.top_states
+ StateSet.print a.bottom_states
+ StateSet.print a.selection_states;
+ let trs =
+ Hashtbl.fold
+ (fun q t acc -> List.fold_left (fun acc (s , f) -> (q,s,f)::acc) acc t)
+ a.transitions
+ []
+ in
+ let sorted_trs = List.stable_sort (fun (q1, s1, phi1) (q2, s2, phi2) ->
+ let c = State.compare q1 q2 in - (if c == 0 then QNameSet.compare s1 s2 else c))
+ trs
+ in
+ let sfmt = str_formatter in
+ let _ = flush_str_formatter () in
+ let strs_strings, maxs = List.fold_left (fun (accl, accm) (q, s, f) ->
+ let s1 = State.print sfmt q; flush_str_formatter () in
+ let s2 = QNameSet.print sfmt s; flush_str_formatter () in
+ let s3 = Formula.print sfmt f; flush_str_formatter () in
+ ( (s1, s2, s3) :: accl,
+ max
+ accm (2 + String.length s1 + String.length s2))
+ ) ([], 0) sorted_trs
+ in
+ List.iter (fun (s1, s2, s3) ->
+ fprintf fmt "%s, %s" s1 s2;
+ fprintf fmt "%s" (Pretty.padding (maxs - String.length s1 - String.length s2 - 2));
+ fprintf fmt "%s %s@\n" Pretty.right_arrow s3) strs_strings