type result_set
val top_down_run : Ata.t -> Tree.t -> Tree.node -> result_set
val bottom_up_run : Ata.t -> Tree.t -> Compile.text_query * string -> result_set
- val grammar_run : Ata.t -> Grammar2.t -> unit -> result_set
val naive_top_down_run : Ata.t -> Tree.t -> Tree.node -> result_set
val twopass_top_down_run : Ata.t -> Tree.t -> Tree.node -> result_set
end
let cache_apply cache auto tlist s1 s2 =
let f = gen_code auto tlist s1 s2 in
- LOG(__ "grammar" 2 "Inserting: %i, %a, %a\n%!"
+ LOG(__ "top-down-run" 2 "Inserting: %i, %a, %a\n%!"
(Uid.to_int tlist.Translist.Node.id) StateSet.print s1 StateSet.print s2);
if not !Options.no_cache then add cache tlist s1 s2 f;
f
slot.(StateSet.min_elt auto.topdown_marking_states)
-let get_trans g auto tag states =
- StateSet.fold (fun q tr_acc ->
- List.fold_left
- (fun ((lstates, rstates, tacc) as acc) (ts, trs) ->
- if TagSet.mem (Tag.translate tag) ts then
- if not (TagSet.mem Tag.attribute ts) && Grammar2.is_attribute g tag
- then acc
- else
- let _, _, _, phi = Transition.node trs in
- let l, r = Formula.st phi in
- (StateSet.union l lstates,
- StateSet.union r rstates,
- Translist.cons trs tacc)
- else acc)
- tr_acc (Hashtbl.find auto.trans q)
- ) states (StateSet.empty, StateSet.empty, Translist.nil)
-
-(* Grammar run *)
-let dispatch_param0 conf id2 y0 y1 =
- match conf with
- | Grammar2.C0 | Grammar2.C2 -> Grammar2.Node0 id2
- | Grammar2.C1 | Grammar2.C5 -> Grammar2.Node1(id2,y0)
- | Grammar2.C3 | Grammar2.C6 -> y0
- | Grammar2.C4 -> Grammar2.Node2(id2, y0, y1)
-
-let dispatch_param1 conf id2 y0 y1 =
- match conf with
- | Grammar2.C2 -> y0
- | Grammar2.C3 -> Grammar2.Node0 id2
- | Grammar2.C5 -> y1
- | Grammar2.C6 -> Grammar2.Node1(id2, y1)
- | _ -> Grammar2.dummy_param
-
- module K_down = struct
- type t = Grammar2.n_symbol * StateSet.t
- let hash (x,y) = HASHINT2(Node.to_int x, Uid.to_int y.StateSet.Node.id)
- let equal (x1,y1) (x2,y2) = x1 == x2 && y1 == y2
- end
-
- module K_up = struct
- type t = Grammar2.n_symbol * StateSet.t * StateSet.t * StateSet.t
- let hash (a,b,c,d) =
- HASHINT4 (Node.to_int a,
- Uid.to_int b.StateSet.Node.id,
- Uid.to_int c.StateSet.Node.id,
- Uid.to_int d.StateSet.Node.id)
- let equal (a1, b1, c1, d1) (a2, b2, c2, d2) =
- a1 == a2 && b1 == b2 && c1 == c2 && d1 == d2
- end
-
- module DCache =
- struct
- include Hashtbl.Make(K_down)
- let dummy = StateSet.singleton State.dummy
- let notfound l = l.(0) == dummy && l.(1) == dummy
- let find h k =
- try
- find h k
- with
- Not_found ->
- let a = [| dummy; dummy |] in
- add h k a;
- a
- end
- module UCache = Hashtbl.Make(K_up)
- type result = {
- in0 : StateSet.t;
- in1 : StateSet.t;
- out0 : StateSet.t * U.t;
- out1 : StateSet.t * U.t;
- main : StateSet.t * U.t
- }
- let mk_empty e =
- { in0 = StateSet.empty;
- in1 = StateSet.empty;
- out0 = e;
- out1 = e;
- main = e
- }
- let mk_nil s v =
- {
- mk_empty (s,v) with
- out0 = StateSet.empty,v;
- out1 = StateSet.empty,v;
- }
-
- let grammar_run auto g () =
- let dummy_leaf = Grammar2.dummy_param in
- let dummy_set = StateSet.singleton State.dummy in
- let res_len = (StateSet.max_elt auto.states) + 1 in
- let empty_slot = Array.create res_len U.NS.empty in
- let nil_res = mk_nil auto.bottom_states empty_slot in
- let cache3 = L3JIT.create () in
- let dummy2 = (StateSet.empty, StateSet.empty, Translist.nil) in
- let cache2 = Cache.Lvl2.create 512 dummy2 in
- let rule_counter = ref 0 in
- let preorder_counter = ref 0 in
- let term_array = [| StateSet.empty; StateSet.empty |] in
- let get_trans tag states =
- let c = Cache.Lvl2.find cache2 tag (Uid.to_int states.StateSet.Node.id) in
- if c == dummy2 then
- let c = get_trans g auto tag states in
- begin
- Cache.Lvl2.add cache2 tag (Uid.to_int states.StateSet.Node.id) c;
- c
- end
- else c
- in
- let lambda = ref 0 in
- let rec start_loop idx states =
- LOG(__ "grammar" 2 "Node %i\n%!" (Node.to_int idx));
- if states == dummy_set then nil_res else
- if idx < Node.null then nil_res
- else begin
- let symbol = Grammar2.start_tag g idx in
- let fc = Grammar2.start_first_child g idx in
- let ns = Grammar2.start_next_sibling g fc in
- if Grammar2.is_terminal g symbol then
- let t = Grammar2.terminal symbol in
- terminal_loop t states (Grammar2.Leaf (~-1,0,term_array, fc)) (Grammar2.Leaf (~-1,1,term_array, ns))
- else
- let nt = Grammar2.non_terminal symbol in
- incr lambda;
- let lmbd = !lambda in
- let y0 = (Grammar2.Leaf (lmbd,0, term_array, fc))
- and y1 = (Grammar2.Leaf (lmbd,1, term_array, ns)) in
- rule_loop nt states y0 y1
- end
- and rule_loop (t : Grammar2.n_symbol) states y0 y1 =
- if t = Node.nil || states == dummy_set then nil_res else
- let () = incr rule_counter in
- if !rule_counter land 65535 == 0 then begin Gc.minor() end;
-(* let k = (t, states) in*)
-(* let pstates = DCache.find dcache k in
- let notfound = DCache.notfound pstates in *)
- let rhs = Grammar2.get_rule g t in
- let id1 = Grammar2.get_id1 rhs in
- let id2 = Grammar2.get_id2 rhs in
- let conf = Grammar2.get_conf rhs in
-(* if notfound then*)
- let ny0 = dispatch_param0 conf id2 y0 y1 in
- let ny1 = dispatch_param1 conf id2 y0 y1 in
- let res = dispatch_loop id1 states ny0 ny1 in
-(* pstates.(0) <- res.in0;
- pstates.(1) <- res.in1; *)
- res (*
- UCache.add ucache (t, states, fst res.out0, fst res.out1)
- res.main;
- let h = Hashtbl.create 7 in
- for i = 0 to res_len - 1 do
- Hashtbl.add h (0, i) (snd res.out0).(i);
- Hashtbl.add h (1, i) (snd res.out1).(i);
- done;
- { res with
- main = ((fst res.main), (U.close h (snd res.main)));
- } *)
-(*
- else
- let res0 = partial_loop y0 pstates.(0) in
- let res1 = partial_loop y1 pstates.(1) in
- let k2 = (t, states, fst res0.main, fst res1.main) in
- let s, r =
- try
- UCache.find ucache k2
- with
- Not_found ->
- let ores0 = { res0 with main = fst res0.main, U.var 0 (snd res0.main) }
- and ores1 = { res1 with main = fst res1.main, U.var 1 (snd res1.main) }
- in
- let res = dispatch_loop id1 states (Grammar2.Cache (0,ores0)) (Grammar2.Cache (1, ores1)) in
- UCache.add ucache k2 res.main;
- res.main
- in
- let h = Hashtbl.create 7 in
- for i = 0 to res_len - 1 do
- Hashtbl.add h (0, i) (snd res0.main).(i);
- Hashtbl.add h (1, i) (snd res1.main).(i);
- done;
- { in0 = pstates.(0);
- in1 = pstates.(1);
- out0 = res0.main;
- out1 = res1.main;
- main = s, U.close h r;
- }
-*)
- and dispatch_loop id1 states ny0 ny1 =
- if Grammar2.is_non_terminal g id1 then
- rule_loop (Grammar2.non_terminal id1) states ny0 ny1
- else
- terminal_loop (Grammar2.terminal id1) states ny0 ny1
-
- and terminal_loop (symbol : Grammar2.t_symbol) states y0 y1 =
-
- if symbol == Grammar2.nil_symbol || symbol = Node.nil || states == dummy_set then nil_res else begin
- let tag = Grammar2.tag symbol in
- let lst, rst, trans = get_trans tag states in
- let res0 = partial_loop y0 lst in
- let res1 = partial_loop y1 rst in
- let s1, slot1 = res0.main
- and s2, slot2 = res1.main in
- let opcode = L3JIT.find cache3 trans s1 s2 in
- let node = Node.of_int !preorder_counter in
- incr preorder_counter;
- let res =
- if opcode == L3JIT.dummy then
- (L3JIT.cache_apply cache3 auto trans s1 s2) empty_slot slot1 slot2 (Obj.magic ()) node
- else
- opcode empty_slot slot1 slot2 (Obj.magic()) (node)
- in
- { in0 = lst;
- in1 = rst;
- out0 = res0.main;
- out1 = res1.main;
- main = res }
- end
-
- and partial_loop l states =
- if l == dummy_leaf then nil_res else
- match l with
- | Grammar2.Cache (_, r) -> r
- | Grammar2.Leaf (_,_, _, id) -> start_loop id states
- | Grammar2.Node0 id ->
- if (Grammar2.terminal id) == Grammar2.nil_symbol then nil_res
- else
- rule_loop (Grammar2.non_terminal id) states dummy_leaf dummy_leaf
-
- | Grammar2.Node1 (id, y0) ->
- rule_loop (Grammar2.non_terminal id) states y0 dummy_leaf
- | Grammar2.Node2 (id, y0, y1) ->
- if Grammar2.is_terminal g id then
- terminal_loop (Grammar2.terminal id) states y0 y1
- else
- rule_loop (Grammar2.non_terminal id) states y0 y1
- in
-
- let (_, slot) = (start_loop (Node.null) auto.init).main in
- slot.(StateSet.min_elt auto.topdown_marking_states)
- ;;
-
(* Slow reference top-down implementation *)
let naive_top_down auto tree root states ctx =
projects / SXSI / xpathcomp.git / blobdiff