(***********************************************************************)
(*
- Time-stamp: <Last modified on 2013-03-14 19:14:03 CET by Kim Nguyen>
+ Time-stamp: <Last modified on 2013-03-15 23:38:04 CET by Kim Nguyen>
*)
INCLUDE "utils.ml"
end
-type t = {
- id : Uid.t;
- mutable states : StateSet.t;
- mutable selection_states: StateSet.t;
- transitions: (State.t, (QNameSet.t*SFormula.t) list) Hashtbl.t;
-}
-
-let next = Uid.make_maker ()
-
-let create () = { id = next ();
- states = StateSet.empty;
- selection_states = StateSet.empty;
- transitions = Hashtbl.create 17;
- }
-
module Transition = Hcons.Make (struct
type t = State.t * QNameSet.t * SFormula.t
HASHINT4 (PRIME1, a, ((QNameSet.uid b) :> int), ((SFormula.uid c) :> int))
end)
+
module TransList : sig
include Hlist.S with type elt = Transition.t
- val print : Format.formatter -> t -> unit
+ val print : Format.formatter -> ?sep:string -> t -> unit
end =
struct
include Hlist.Make(Transition)
- let print ppf l =
+ let print ppf ?(sep="\n") l =
iter (fun t ->
let q, lab, f = Transition.node t in
- fprintf ppf "%a, %a -> %a<br/>" State.print q QNameSet.print lab SFormula.print f) l
+ fprintf ppf "%a, %a -> %a%s" State.print q QNameSet.print lab SFormula.print f sep) l
end
-let get_trans a states tag =
+
+type t = {
+ id : Uid.t;
+ mutable states : StateSet.t;
+ mutable selection_states: StateSet.t;
+ transitions: (State.t, (QNameSet.t*SFormula.t) list) Hashtbl.t;
+ mutable cache2 : TransList.t Cache.N2.t;
+ mutable cache6 : (TransList.t*StateSet.t) Cache.N6.t;
+}
+
+let next = Uid.make_maker ()
+
+let dummy2 = TransList.cons
+ (Transition.make (State.dummy,QNameSet.empty, SFormula.false_))
+ TransList.nil
+
+let dummy6 = (dummy2, StateSet.empty)
+
+
+let create s ss =
+ let auto = { id = next ();
+ states = s;
+ selection_states = ss;
+ transitions = Hashtbl.create 17;
+ cache2 = Cache.N2.create dummy2;
+ cache6 = Cache.N6.create dummy6;
+ }
+ in
+ at_exit (fun () ->
+ let n6 = ref 0 in
+ let n2 = ref 0 in
+ Cache.N2.iteri (fun _ _ _ b -> if b then incr n2) auto.cache2;
+ Cache.N6.iteri (fun _ _ _ _ _ _ _ b -> if b then incr n6) auto.cache6;
+ Format.eprintf "INFO: automaton %i, cache2: %i entries, cache6: %i entries\n%!"
+ (auto.id :> int) !n2 !n6
+ );
+ auto
+
+let reset a =
+ a.cache2 <- Cache.N2.create dummy2;
+ a.cache6 <- Cache.N6.create dummy6
+
+
+let get_trans_aux a tag states =
StateSet.fold (fun q acc0 ->
try
let trs = Hashtbl.find a.transitions q in
with Not_found -> acc0
) states TransList.nil
+
+let get_trans a tag states =
+ let trs =
+ Cache.N2.find a.cache2
+ (tag.QName.id :> int) (states.StateSet.id :> int)
+ in
+ if trs == dummy2 then
+ let trs = get_trans_aux a tag states in
+ (Cache.N2.add
+ a.cache2
+ (tag.QName.id :> int)
+ (states.StateSet.id :> int) trs; trs)
+ else trs
+
+
+
+let eval_form phi fcs nss ps ss is_left is_right has_left has_right kind =
+ let rec loop phi =
+ begin match SFormula.expr phi with
+ Formula.True -> true
+ | Formula.False -> false
+ | Formula.Atom a ->
+ let p, b, q = Atom.node a in
+ let pos =
+ match p with
+ | First_child -> StateSet.mem q fcs
+ | Next_sibling -> StateSet.mem q nss
+ | Parent | Previous_sibling -> StateSet.mem q ps
+ | Stay -> StateSet.mem q ss
+ | Is_first_child -> is_left
+ | Is_next_sibling -> is_right
+ | Is k -> k == kind
+ | Has_first_child -> has_left
+ | Has_next_sibling -> has_right
+ in
+ if is_move p && (not b) then
+ eprintf "Warning: Invalid negative atom %a" Atom.print a;
+ b == pos
+ | Formula.And(phi1, phi2) -> loop phi1 && loop phi2
+ | Formula.Or (phi1, phi2) -> loop phi1 || loop phi2
+ end
+ in
+ loop phi
+
+let int_of_conf is_left is_right has_left has_right kind =
+ ((Obj.magic kind) lsl 4) lor
+ ((Obj.magic is_left) lsl 3) lor
+ ((Obj.magic is_right) lsl 2) lor
+ ((Obj.magic has_left) lsl 1) lor
+ (Obj.magic has_right)
+
+let eval_trans auto ltrs fcs nss ps ss is_left is_right has_left has_right kind =
+ let i = int_of_conf is_left is_right has_left has_right kind
+ and k = (fcs.StateSet.id :> int)
+ and l = (nss.StateSet.id :> int)
+ and m = (ps.StateSet.id :> int)
+ in
+
+ let rec loop ltrs ss =
+ let j = (ltrs.TransList.id :> int)
+ and n = (ss.StateSet.id :> int) in
+ let (new_ltrs, new_ss) as res =
+ let res = Cache.N6.find auto.cache6 i j k l m n in
+ if res == dummy6 then
+ let res =
+ TransList.fold (fun trs (acct, accs) ->
+ let q, _, phi = Transition.node trs in
+ if StateSet.mem q accs then (acct, accs) else
+ if eval_form
+ phi fcs nss ps accs
+ is_left is_right has_left has_right kind
+ then
+ (acct, StateSet.add q accs)
+ else
+ (TransList.cons trs acct, accs)
+ ) ltrs (TransList.nil, ss)
+ in
+ Cache.N6.add auto.cache6 i j k l m n res; res
+ else
+ res
+ in
+ if new_ss == ss then res else
+ loop new_ltrs new_ss
+ in
+ loop ltrs ss
+
+
+
+
+
(*
[add_trans a q labels f] adds a transition [(q,labels) -> f] to the
automaton [a] but ensures that transitions remains pairwise disjoint
projects / tatoo.git / blobdiff