-(* Todo refactor and remove this alias *)
INCLUDE "debug.ml"
-module Tree = Tree.Binary
+INCLUDE "utils.ml"
+
+type jump_kind = [ `TAG of Tag.t | `CONTAINS of string | `NOTHING ]
+let cpt_trans = ref 0
+let miss_trans = ref 0
+let cpt_eval = ref 0
+let miss_eval = ref 0
+
+let gen_id =
+ let id = ref (-1) in
+ fun () -> incr id;!id
+
+let h_union = Hashtbl.create 4097
+
+let pt_cup s1 s2 =
+ (* special case, since this is a union we want hash(s1,s2) = hash(s2,s1) *)
+ let x = Ptset.hash s1
+ and y = Ptset.hash s2 in
+ let h = if x < y then HASHINT2(x,y) else HASHINT2(y,x) in
+ try
+ Hashtbl.find h_union h
+ with
+ | Not_found -> let s = Ptset.union s1 s2
+ in
+ Hashtbl.add h_union h s;s
-let gen_id() = Oo.id (object end)
module State = struct
type t = int
type state = State.t
-type predicate = Ptset.t*Ptset.t -> Tree.t -> [ `True | `False | `Maybe ]
+
type formula_expr =
| False | True
- | Or of formula * formula
- | And of formula * formula
- | Atom of ([ `Left | `Right ]*bool*state*predicate option)
+ | Or of formula * formula
+ | And of formula * formula
+ | Atom of ([ `Left | `Right | `LLeft | `RRight ]*bool*state)
and formula = { fid: int;
- pos : formula_expr;
- neg : formula;
- st : Ptset.t*Ptset.t;
+ fkey : int;
+ pos : formula_expr;
+ neg : formula;
+ st : (Ptset.t*Ptset.t*Ptset.t)*(Ptset.t*Ptset.t*Ptset.t);
+ size: int;
}
+external hash_const_variant : [> ] -> int = "%identity"
+external vb : bool -> int = "%identity"
+
+let hash_node_form t = match t with
+ | False -> 0
+ | True -> 1
+ | And(f1,f2) -> (2+17*f1.fkey + 37*f2.fkey) (*land max_int *)
+ | Or(f1,f2) -> (3+101*f1.fkey + 253*f2.fkey) (*land max_int *)
+ | Atom(v,b,s) -> HASHINT3(hash_const_variant v,(3846*(vb b) +257),s)
+
+
module FormNode =
struct
type t = formula
- let hash = function
- | False -> 0
- | True -> 1
- | And(f1,f2) -> 2+17*f1.fid + 37*f2.fid
- | Or(f1,f2) -> 3+101*f1.fid + 253*f2.fid
- | Atom(d,b,s,_) -> 5+(if d=`Left then 11 else 19)*(if b then 23 else 31)*s
-
- let hash t = (hash t.pos) land max_int
-
+
+ let hash t = t.fkey
let equal f1 f2 =
+ if f1.fid == f2.fid || f1.fkey == f2.fkey || f1.pos == f2.pos then true
+ else
match f1.pos,f2.pos with
| False,False | True,True -> true
- | Atom(d1,b1,s1,_), Atom(d2,b2,s2,_) when (d1 = d2) && (b1=b2) &&(s1=s2) -> true
+ | Atom(d1,b1,s1), Atom(d2,b2,s2) when (b1==b2) && (s1==s2) && (d1 = d2) -> true
| Or(g1,g2),Or(h1,h2)
| And(g1,g2),And(h1,h2) -> g1.fid == h1.fid && g2.fid == h2.fid
| _ -> false
+
end
module WH = Weak.Make(FormNode)
let f_pool = WH.create 107
+let empty_triple = Ptset.empty,Ptset.empty,Ptset.empty
+let empty_hex = empty_triple,empty_triple
+
let true_,false_ =
- let rec t = { fid = 1; pos = True; neg = f ; st = Ptset.empty,Ptset.empty}
- and f = { fid = 0; pos = False; neg = t; st = Ptset.empty,Ptset.empty }
+ let rec t = { fid = 1; pos = True; fkey=1; neg = f ; st = empty_hex; size =1; }
+ and f = { fid = 0; pos = False; fkey=0; neg = t; st = empty_hex; size = 1; }
in
WH.add f_pool f;
WH.add f_pool t;
let is_false f = f.fid == 0
-let cons pos neg s1 s2 =
+let cons pos neg s1 s2 size1 size2 =
let rec pnode =
{ fid = gen_id ();
+ fkey = hash_node_form pos;
pos = pos;
neg = nnode;
- st = s1; }
+ st = s1;
+ size = size1;}
and nnode = {
fid = gen_id ();
pos = neg;
+ fkey = hash_node_form neg;
neg = pnode;
st = s2;
+ size = size2;
}
in
(WH.merge f_pool pnode),(WH.merge f_pool nnode)
-let atom_ ?(pred=None) d p s =
+let atom_ d p s =
let si = Ptset.singleton s in
let ss = match d with
- | `Left -> si,Ptset.empty
- | `Right -> Ptset.empty,si
- in fst (cons (Atom(d,p,s,pred)) (Atom(d,not p,s,pred)) ss ss )
+ | `Left -> (si,Ptset.empty,si),empty_triple
+ | `Right -> empty_triple,(si,Ptset.empty,si)
+ | `LLeft -> (Ptset.empty,si,si),empty_triple
+ | `RRight -> empty_triple,(Ptset.empty,si,si)
+ in fst (cons (Atom(d,p,s)) (Atom(d,not p,s)) ss ss 1 1)
+
+let union_hex ((l1,ll1,lll1),(r1,rr1,rrr1)) ((l2,ll2,lll2),(r2,rr2,rrr2)) =
+ (pt_cup l1 l2 ,pt_cup ll1 ll2,pt_cup lll1 lll2),
+ (pt_cup r1 r2 ,pt_cup rr1 rr2,pt_cup rrr1 rrr2)
let merge_states f1 f2 =
let sp =
- Ptset.union (fst f1.st) (fst f2.st),
- Ptset.union (snd f1.st) (snd f2.st)
+ union_hex f1.st f2.st
and sn =
- Ptset.union (fst f1.neg.st) (fst f2.neg.st),
- Ptset.union (snd f1.neg.st) (snd f2.neg.st)
+ union_hex f1.neg.st f2.neg.st
in
sp,sn
+
+let full_or_ f1 f2 =
+ let f1,f2 = if f1.fid < f2.fid then f2,f1 else f1,f2 in
+ let sp,sn = merge_states f1 f2 in
+ let psize = f1.size + f2.size in
+ let nsize = f1.neg.size + f2.neg.size in
+ fst (cons (Or(f1,f2)) (And(f1.neg,f2.neg)) sp sn psize nsize )
let or_ f1 f2 =
+ let f1,f2 = if f1.fid < f2.fid then f2,f1 else f1,f2 in
if is_true f1 || is_true f2 then true_
else if is_false f1 && is_false f2 then false_
else if is_false f1 then f2
else if is_false f2 then f1
else
+ let psize = f1.size + f2.size in
+ let nsize = f1.neg.size + f2.neg.size in
let sp,sn = merge_states f1 f2 in
- fst (cons (Or(f1,f2)) (And(f1.neg,f2.neg)) sp sn)
+ fst (cons (Or(f1,f2)) (And(f1.neg,f2.neg)) sp sn psize nsize)
let and_ f1 f2 =
+ let f1,f2 = if f1.fid < f2.fid then f2,f1 else f1,f2 in
if is_true f1 && is_true f2 then true_
else if is_false f1 || is_false f2 then false_
else if is_true f1 then f2
else if is_true f2 then f1
else
+ let psize = f1.size + f2.size in
+ let nsize = f1.neg.size + f2.neg.size in
let sp,sn = merge_states f1 f2 in
- fst (cons (And(f1,f2)) (Or(f1.neg,f2.neg)) sp sn)
+ fst (cons (And(f1,f2)) (Or(f1.neg,f2.neg)) sp sn psize nsize)
let not_ f = f.neg
-type property = [ `None | `Existential ]
-let get_prop h s =
- try
- Hashtbl.find h s
- with
- Not_found -> `None
-
-type t = {
+let k_hash (s,t) = HASHINT2(Ptset.hash s,Tag.hash t)
+
+module HTagSetKey =
+struct
+ type t = Ptset.t*Tag.t
+ let equal (s1,s2) (t1,t2) = (s2 == t2) && Ptset.equal s1 t1
+ let hash = k_hash
+end
+
+module HTagSet = Hashtbl.Make(HTagSetKey)
+
+type skiplist = Nothing | All
+ | Zero of skiplist
+ | One of skiplist | Two of skiplist | Three of skiplist
+ | Four of skiplist | Five of skiplist | Six of skiplist
+ | Seven of skiplist | Eight of skiplist | Nine of skiplist
+
+
+type formlist = Nil | Cons of state*formula*int*bool*formlist
+
+type 'a t = {
id : int;
- states : Ptset.t;
+ mutable states : Ptset.t;
init : Ptset.t;
- final : Ptset.t;
+ mutable final : Ptset.t;
universal : Ptset.t;
+ starstate : Ptset.t option;
(* Transitions of the Alternating automaton *)
- (* (tags,q) -> (marking,formula) *)
- phi : ((TagSet.t*state),(bool*formula)) Hashtbl.t;
- delta : (TagSet.t,(Ptset.t*bool*Ptset.t*Ptset.t)) Hashtbl.t;
- properties : (state,property) Hashtbl.t;
- }
-
+ phi : (state,(TagSet.t*(bool*formula*bool)) list) Hashtbl.t;
+ sigma : (int,('a t -> Tree.t -> Tree.t -> Ptset.t*'a)) Hashtbl.t;
+}
+
module Pair (X : Set.OrderedType) (Y : Set.OrderedType) =
struct
type t = X.t*Y.t
module PL = Set.Make (Pair (Ptset) (Ptset))
- let pr_st ppf l = Format.fprintf ppf "{";
+ let pr_st ppf l = Format.fprintf ppf "{";
begin
match l with
| [] -> ()
Format.fprintf ppf " }"
let rec pr_frm ppf f = match f.pos with
| True -> Format.fprintf ppf "⊤"
- | False -> Format.fprintf ppf "â\8a¤"
+ | False -> Format.fprintf ppf "â\8a¥"
| And(f1,f2) ->
Format.fprintf ppf "(";
(pr_frm ppf f1);
(pr_frm ppf f1);
Format.fprintf ppf " ∨ ";
(pr_frm ppf f2);
- | Atom(dir,b,s,p) -> Format.fprintf ppf "%s%s[%i]%s"
+ | Atom(dir,b,s) -> Format.fprintf ppf "%s%s[%i]"
(if b then "" else "¬")
- (if dir = `Left then "↓₁" else "↓₂")s
- (match p with None -> "" | _ -> " <hint>")
-
- let dnf_hash = Hashtbl.create 17
-
- let rec dnf_aux f = match f.pos with
- | False -> PL.empty
- | True -> PL.singleton (Ptset.empty,Ptset.empty)
- | Atom(`Left,_,s,_) -> PL.singleton (Ptset.singleton s,Ptset.empty)
- | Atom(`Right,_,s,_) -> PL.singleton (Ptset.empty,Ptset.singleton s)
- | Or(f1,f2) -> PL.union (dnf f1) (dnf f2)
- | And(f1,f2) ->
- let pl1 = dnf f1
- and pl2 = dnf f2
- in
- PL.fold (fun (s1,s2) acc ->
- PL.fold ( fun (s1', s2') acc' ->
- (PL.add
- ((Ptset.union s1 s1'),
- (Ptset.union s2 s2')) acc') )
- pl2 acc )
- pl1 PL.empty
-
-
- and dnf f =
- try
- Hashtbl.find dnf_hash f.fid
- with
- Not_found ->
- let d = dnf_aux f in
- Hashtbl.add dnf_hash f.fid d;d
-
-
- let equal_form f1 f2 =
- (f1.fid == f2.fid) || (FormNode.equal f1 f2) || (PL.equal (dnf f1) (dnf f2))
-
- let alt_trans_to_nfa ?(accu=[]) ts s mark f =
- (* todo memoize *)
- let f' = dnf f in
- PL.fold (fun (s1,s2) acc -> (ts,s,mark,s1,s2)::acc) f' accu
-
-
- let possible_trans ?(accu=[]) a q tag =
- (* todo change the data structure to avoid creating (,) *)
- let ata_trans =
- Hashtbl.fold (fun (ts,s) (m,f) acc ->
- if (q==s) && (TagSet.mem tag ts)
- then (ts,s,m,f)::acc
- else acc) a.phi []
- in
- if ata_trans != []
- then begin
- List.iter (fun (ts,s,m,f) ->
- (* The following builds too many transitions in the nfa
- let ts' = TagSet.remove tag ts
- in
- Hashtbl.remove a.phi (ts,s);
- if not (TagSet.is_empty ts')
- then Hashtbl.add a.phi (ts',s) (m,f)
- *)
- Hashtbl.remove a.phi (ts,s)
- ) ata_trans;
- (* let tstag = TagSet.tag tag in *)
- let nfa_trs = List.fold_left (fun acc (ts,s,m,f) ->
- alt_trans_to_nfa ~accu:acc ts s m f) [] ata_trans
- in
- List.iter (fun (ts,s,m,s1,s2) ->
- Hashtbl.add a.delta ts ((Ptset.singleton s),m,s1,s2)) nfa_trs
- end;
- Hashtbl.fold (fun ts (s,m,s1,s2) acc ->
- if (Ptset.mem q s) && (TagSet.mem tag ts)
- then (m,s1,s2)::acc else acc) a.delta accu
+ (match dir with
+ | `Left -> "↓₁"
+ | `Right -> "↓₂"
+ | `LLeft -> "⇓₁"
+ | `RRight -> "⇓₂") s
let dump ppf a =
Format.fprintf ppf "Automaton (%i) :\n" a.id;
Format.fprintf ppf "\nFinal states : "; pr_st ppf (Ptset.elements a.final);
Format.fprintf ppf "\nUniversal states : "; pr_st ppf (Ptset.elements a.universal);
Format.fprintf ppf "\nAlternating transitions :\n------------------------------\n";
- let l = Hashtbl.fold (fun k t acc -> (k,t)::acc) a.phi [] in
+ let l = Hashtbl.fold (fun k t acc ->
+ (List.map (fun (t,(m,f,p)) -> (t,k),(m,f,p)) t)@ acc) a.phi [] in
let l = List.sort (fun ((tsx,x),_) ((tsy,y),_) -> if x-y == 0 then TagSet.compare tsx tsy else x-y) l in
- List.iter (fun ((ts,q),(b,f)) ->
+ List.iter (fun ((ts,q),(b,f,_)) ->
let s =
- try
- Tag.to_string (TagSet.choose ts)
- with
- | _ -> "*"
+ if TagSet.is_finite ts
+ then "{" ^ (TagSet.fold (fun t a -> a ^ " '" ^ (Tag.to_string t)^"'") ts "") ^" }"
+ else let cts = TagSet.neg ts in
+ if TagSet.is_empty cts then "*" else
+ (TagSet.fold (fun t a -> a ^ " " ^ (Tag.to_string t)) cts "*\\{"
+ )^ "}"
in
Format.fprintf ppf "(%s,%i) %s " s q (if b then "=>" else "->");
pr_frm ppf f;
Format.fprintf ppf "\n")l;
Format.fprintf ppf "NFA transitions :\n------------------------------\n";
- Hashtbl.iter (fun (ts) (q,b,s1,s2) ->
-
- let s =
- try
- Tag.to_string (TagSet.choose ts)
- with
- | _ -> "*"
+(* HTagSet.iter (fun (qs,t) (disp,b,_,flist,_,_) ->
+ let (ls,lls,_),(rs,rrs,_) =
+ List.fold_left (fun ((a1,b1,c1),(a2,b2,c2)) (_,f) ->
+ let (x1,y1,z1),(x2,y2,z2) = f.st in
+ ((Ptset.union x1 a1),(Ptset.union y1 b1),(Ptset.union c1 z1)),
+ ((Ptset.union x2 a2),(Ptset.union y2 b2),(Ptset.union c2 z2)))
+ ((Ptset.empty,Ptset.empty,Ptset.empty),
+ (Ptset.empty,Ptset.empty,Ptset.empty))
+ flist
in
- pr_st ppf (Ptset.elements q);
- Format.fprintf ppf ",%s %s " s (if b then "=>" else "->");
- Format.fprintf ppf "(";
- pr_st ppf (Ptset.elements s1);
- Format.fprintf ppf ",";
- pr_st ppf (Ptset.elements s2);
- Format.fprintf ppf ")\n" ) a.delta;
- Format.fprintf ppf "=======================================\n"
+ pr_st ppf (Ptset.elements qs);
+ Format.fprintf ppf ",%s %s " (Tag.to_string t) (if b then "=>" else "->");
+ List.iter (fun (q,f) ->
+ Format.fprintf ppf "\n%i," q;
+ pr_frm ppf f) flist;
+ Format.fprintf ppf "\nleft=";
+ pr_st ppf (Ptset.elements ls);
+ Format.fprintf ppf " , ";
+ pr_st ppf (Ptset.elements lls);
+ Format.fprintf ppf ", right=";
+ pr_st ppf (Ptset.elements rs);
+ Format.fprintf ppf ", ";
+ pr_st ppf (Ptset.elements rrs);
+ Format.fprintf ppf ", first=%s, next=%s\n\n" disp.flabel disp.nlabel;
+ ) a.sigma; *)
+ Format.fprintf ppf "=======================================\n%!"
module Transitions = struct
- type t = state*TagSet.t*bool*formula
+ type t = state*TagSet.t*bool*formula*bool
let ( ?< ) x = x
- let ( >< ) state label = state,label
- let ( >=> ) (state,(label,mark)) form = (state,label,mark,form)
+ let ( >< ) state (l,b) = state,(l,b,false)
+ let ( ><@ ) state (l,b) = state,(l,b,true)
+ let ( >=> ) (state,(label,mark,pred)) form = (state,label,mark,form,pred)
let ( +| ) f1 f2 = or_ f1 f2
let ( *& ) f1 f2 = and_ f1 f2
let ( ** ) d s = atom_ d true s
end
type transition = Transitions.t
- let equal_trans (q1,t1,m1,f1) (q2,t2,m2,f2) =
- (q1 == q2) && (TagSet.equal t1 t2) && (m1 == m2) && (equal_form f1 f2)
-
- module TS : Set.S with type elt = Tree.t = Set.Make(Tree)
- let res = ref TS.empty
+ let equal_trans (q1,t1,m1,f1,_) (q2,t2,m2,f2,_) =
+ (q1 == q2) && (TagSet.equal t1 t2) && (m1 == m2) (*&& (equal_form f1 f2) *)
+
+ module HFEval = Hashtbl.Make(
+ struct
+ type t = int*Ptset.t*Ptset.t
+ let equal (a,b,c) (d,e,f) =
+ a==d && (Ptset.equal b e) && (Ptset.equal c f)
+ let hash (a,b,c) =
+ HASHINT3(a,Ptset.hash b,Ptset.hash c)
+ end)
+
- module BottomUpNew = struct
-IFDEF DEBUG
-THEN
- type trace =
- | TNil of Ptset.t*Ptset.t
- | TNode of Ptset.t*Ptset.t*bool* (int*bool*formula) list
-
- let traces = Hashtbl.create 17
- let dump_trace t =
- let out = open_out "debug_trace.dot"
+
+ let hfeval = HFEval.create 4097
+ let eval_form_bool f s1 s2 =
+ let rec eval f = match f.pos with
+ (* test some inlining *)
+ | True -> true,true,true
+ | False -> false,false,false
+ | _ ->
+ try
+ HFEval.find hfeval (f.fid,s1,s2)
+ with
+ | Not_found -> let r =
+ match f.pos with
+ | Atom((`Left|`LLeft),b,q) ->
+ if b == (Ptset.mem q s1)
+ then (true,true,false)
+ else false,false,false
+ | Atom(_,b,q) ->
+ if b == (Ptset.mem q s2)
+ then (true,false,true)
+ else false,false,false
+ | Or(f1,f2) ->
+ let b1,rl1,rr1 = eval f1
+ in
+ if b1 && rl1 && rr1 then (true,true,true)
+ else
+ let b2,rl2,rr2 = eval f2
+ in
+ let rl1,rr1 = if b1 then rl1,rr1 else false,false
+ and rl2,rr2 = if b2 then rl2,rr2 else false,false
+ in (b1 || b2, rl1||rl2,rr1||rr2)
+ | And(f1,f2) ->
+ let b1,rl1,rr1 = eval f1 in
+ if b1 && rl1 && rr1 then (true,true,true)
+ else if b1
+ then let b2,rl2,rr2 = eval f2 in
+ if b2 then (true,rl1||rl2,rr1||rr2)
+ else (false,false,false)
+ else (false,false,false)
+ | _ -> assert false
+ in
+ HFEval.add hfeval (f.fid,s1,s2) r;
+ r
+ in eval f
+
+
+ let form_list_fold_left f acc fl =
+ let rec loop acc fl =
+ match fl with
+ | Nil -> acc
+ | Cons(s,frm,h,m,fll) -> loop (f acc s frm h m) fll
in
- let outf = Format.formatter_of_out_channel out in
-
- let rec aux t num =
- if Tree.is_node t
- then
- match (try Hashtbl.find traces (Tree.id t) with Not_found -> TNil(Ptset.empty,Ptset.empty)) with
- | TNode(r,s,mark,trs) ->
- let numl = aux (Tree.left t) num in
- let numr = aux (Tree.right t) (numl+1) in
- let mynum = numr + 1 in
- Format.fprintf outf "n%i [ label=\"<%s>\\nr=" mynum (Tag.to_string (Tree.tag t));
- pr_st outf (Ptset.elements r);
- Format.fprintf outf "\\ns=";
- pr_st outf (Ptset.elements s);
- List.iter (fun (q,m,f) ->
- Format.fprintf outf "\\n%i %s" q (if m then "⇨" else "→");
- pr_frm outf f ) trs;
- Format.fprintf outf "\", %s shape=box ];\n"
- (if mark then "color=cyan1, style=filled," else "");
- let _ = Format.fprintf outf "n%i -> n%i;\n" mynum numl in
- let _ = Format.fprintf outf "n%i -> n%i;\n" mynum numr in
- mynum
- | TNil(r,s) -> Format.fprintf outf "n%i [ shape=box, label=\"Nil\\nr=" num;
- pr_st outf (Ptset.elements r);
- Format.fprintf outf "\\ns=";
- pr_st outf (Ptset.elements s);
- Format.fprintf outf "\"];\n";num
- else
- match Hashtbl.find traces (-10) with
- | TNil(r,s) ->
- Format.fprintf outf "n%i [ shape=box, label=\"Nil\\nr=" num;
- pr_st outf (Ptset.elements r);
- Format.fprintf outf "\\ns=";
- pr_st outf (Ptset.elements s);
- Format.fprintf outf "\"];\n";
- num
- | _ -> assert false
+ loop acc fl
+
+ let h_formlist = Hashtbl.create 4096
+ let rec eval_formlist ?(memo=true) s1 s2 fl =
+ match fl with
+ | Nil -> Ptset.empty,false,false,false,false
+ | Cons(q,f,h,mark,fll) ->
+ let k = (h,Ptset.hash s1,Ptset.hash s2,mark)
+ in
+
+ try
+ if memo then Hashtbl.find h_formlist k
+ else (raise Not_found)
+ with
+ Not_found ->
+ let s,b',b1',b2',amark = eval_formlist (~memo:memo) s1 s2 fll in
+ let b,b1,b2 = eval_form_bool f s1 s2 in
+ let r = if b then (Ptset.add q s, b, b1'||b1,b2'||b2,mark||amark)
+ else s,b',b1',b2',amark
+ in(*
+ Format.fprintf Format.err_formatter "\nEvaluating formula (%i) %i %s" h q (if mark then "=>" else "->");
+ pr_frm (Format.err_formatter) f;
+ Format.fprintf Format.err_formatter " in context ";
+ pr_st Format.err_formatter (Ptset.elements s1);
+ Format.fprintf Format.err_formatter ", ";
+ pr_st Format.err_formatter (Ptset.elements s2);
+ Format.fprintf Format.err_formatter " result is %b\n%!" b; *)
+ (Hashtbl.add h_formlist k r;r)
+
+
+
+ let tags_of_state a q = Hashtbl.fold
+ (fun p l acc ->
+ if p == q then
+ List.fold_left
+ (fun acc (ts,(_,_,aux)) ->
+ if aux then acc else
+ TagSet.cup ts acc) acc l
+ else acc) a.phi TagSet.empty
+
+
+ let tags a qs =
+ let ts = Ptset.fold (fun q acc -> TagSet.cup acc (tags_of_state a q)) qs TagSet.empty
in
- Format.fprintf outf "digraph G {\n";
- ignore(aux t 0);
- Format.fprintf outf "}\n%!";
- close_out out;
- ignore(Sys.command "dot -Tsvg debug_trace.dot > debug_trace.svg")
-END
-
-
-
- let hfeval = Hashtbl.create 17
- let miss = ref 0
- let call = ref 0
- let rec findlist s1 s2 = function
- | [] -> raise Not_found
- | ((ss1,ss2),r)::_ when
- (not (Ptset.is_empty s1)) && (Ptset.subset s1 ss1) &&
- (not (Ptset.is_empty s2)) && (Ptset.subset s2 ss2) -> r
- | _::r -> findlist s1 s2 r
-
- let eval_form f s1 s2 res1 res2 =
+ if TagSet.is_finite ts
+ then `Positive(TagSet.positive ts)
+ else `Negative(TagSet.negative ts)
+
+ let inter_text a b =
+ match b with
+ | `Positive s -> let r = Ptset.inter a s in (r,Ptset.mem Tag.pcdata r, true)
+ | `Negative s -> let r = Ptset.diff a s in (r, Ptset.mem Tag.pcdata r, false)
+
+ let mk_nil_ctx x _ = Tree.mk_nil x
+ let next_sibling_ctx x _ = Tree.next_sibling x
+ let r_ignore _ x = x
- let rec eval_aux f = match f.pos with
- | Atom(`Left,b,q,_) -> if b == (Ptset.mem q s1) then (true,res1) else false,TS.empty
- | Atom(`Right,b,q,_) -> if b == (Ptset.mem q s2) then (true,res2) else false,TS.empty
- | True -> true,(TS.union res1 res2)
- | False -> false,TS.empty
- | Or(f1,f2) ->
- let b1,r1 = eval_aux f1
- and b2,r2 = eval_aux f2
- in
- let r1 = if b1 then r1 else TS.empty
- and r2 = if b2 then r2 else TS.empty
- in (b1 || b2, TS.union r1 r2)
-
- | And(f1,f2) ->
- let b1,r1 = eval_aux f1
- and b2,r2 = eval_aux f2
- in
- if b1 && b2 then (true, TS.union r1 r2)
- else (false,TS.empty)
+ let set_get_tag r t = r := (fun _ -> t)
+
+ module type ResultSet =
+ sig
+ type t
+ val empty : t
+ val cons : Tree.t -> t -> t
+ val concat : t -> t -> t
+ val iter : (Tree.t -> unit) -> t -> unit
+ val fold : (Tree.t -> 'a -> 'a) -> t -> 'a -> 'a
+ val map : (Tree.t -> Tree.t) -> t -> t
+ val length : t -> int
+ end
+
+ module Integer : ResultSet =
+ struct
+ type t = int
+ let empty = 0
+ let cons _ x = x+1
+ let concat x y = x + y
+ let iter _ _ = failwith "iter not implemented"
+ let fold _ _ _ = failwith "fold not implemented"
+ let map _ _ = failwith "map not implemented"
+ let length x = x
+ end
+
+ module IdSet : ResultSet =
+ struct
+ type node = Nil
+ | Cons of Tree.t * node
+ | Concat of node*node
+
+ and t = { node : node;
+ length : int }
+
+ let empty = { node = Nil; length = 0 }
+
+ let cons e t = { node = Cons(e,t.node); length = t.length+1 }
+ let concat t1 t2 = { node = Concat(t1.node,t2.node); length = t1.length+t2.length }
+ let append e t = { node = Concat(t.node,Cons(e,Nil)); length = t.length+1 }
+
+ let fold f l acc =
+ let rec loop acc t = match t with
+ | Nil -> acc
+ | Cons (e,t) -> loop (f e acc) t
+ | Concat (t1,t2) -> loop (loop acc t1) t2
+ in
+ loop acc l.node
+
+ let length l = l.length
+
+
+ let iter f l =
+ let rec loop = function
+ | Nil -> ()
+ | Cons (e,t) -> f e; loop t
+ | Concat(t1,t2) -> loop t1;loop t2
+ in loop l.node
+
+ let map f l =
+ let rec loop = function
+ | Nil -> Nil
+ | Cons(e,t) -> Cons(f e, loop t)
+ | Concat(t1,t2) -> Concat(loop t1,loop t2)
+ in
+ { l with node = loop l.node }
- in incr call;eval_aux f
+
+ end
+
+ module Run (RS : ResultSet) =
+ struct
+ let fmt = Format.err_formatter
+ let pr x = Format.fprintf fmt x
+ module Formlist =
+ struct
+ type t = formlist
+ let nil : t = Nil
+ let cons q f i m l = Cons(q,f,i,m,l)
+ let hash = function Nil -> 0 | Cons(_,_,i,_,_) -> max_int land i
+ let pr fmt l =
+ let rec loop = function
+ | Nil -> ()
+ | Cons(q,f,_,m,l) ->
+ Format.fprintf fmt "%i %s" q (if m then "=>" else "->");
+ pr_frm fmt f;
+ Format.fprintf fmt "\n%!";
+ loop l
+ in
+ loop l
+ end
+ type ptset_list = Nil | Cons of Ptset.t*int*ptset_list
+ let hpl l = match l with
+ | Nil -> 0
+ | Cons (_,i,_) -> i
- (* If true, then the formule may evaluate to true in the future,
- if false it will always return false, i.e. necessary conditions are not
- satisfied
- *)
-
- let val3 = function true -> `True
- | false -> `False
-
- let or3 a b = match a,b with
- | `True,_ | _,`True -> `True
- | `False,`False -> `False
- | _ -> `Maybe
-
- let and3 a b = match a,b with
- | `True,`True -> `True
- | `False,_ | _,`False -> `False
- | _ -> `Maybe
- let not3 = function
- | `True -> `False
- | `False -> `True
- | `Maybe -> `Maybe
-
- let true3 = function true -> `Maybe
- | false -> `False
-
- let may_eval (s1,s2) f t =
- let rec aux f = match f.pos with
- | True -> `True
- | False -> `False
- | Or(f1,f2) -> or3 (aux f1) (aux f2)
- | And(f1,f2) -> and3 (aux f1) (aux f2)
- | Atom(dir,b,q,predo) ->
- and3 (true3 ((Ptset.mem q (match dir with
- | `Left -> s1
- | `Right -> s2)) == b))
- (match predo with
- | Some pred -> (pred (s1,s2) t)
- | None -> `True)
-
- in aux f
-
- let rec accepting_among a t r =
- let r = Ptset.diff r a.final in
- let rest = Ptset.inter a.final r in
- if Ptset.is_empty r then r,TS.empty else
- if (not (Tree.is_node t))
- then
- let _ = D(Hashtbl.add traces (-10) (TNil(r,Ptset.inter a.final r)))
- in
- Ptset.inter a.final r,TS.empty
- else
- let tag = Tree.tag t
- and t1 = Tree.first_child t
- and t2 = Tree.next_sibling t
- in
- let r1,r2,trs =
- Hashtbl.fold (fun (ts,q) ((m,f)as tr) ((ar1,ar2,lt)as acc) ->
- if (TagSet.mem tag ts) && Ptset.mem q r
- then begin
- (* Format.fprintf Format.err_formatter "Tree with tag %s qualifies for transition : (%s,%i)%s"
- (Tag.to_string tag)
- (try
- Tag.to_string (TagSet.choose ts)
- with
- | _ -> "*" )
- q
- (if m then "=>" else "->");
- pr_frm Format.err_formatter f;
- Format.fprintf Format.err_formatter "\n"; *)
- let ls,rs = f.st in
- Ptset.union ls ar1,Ptset.union rs ar2,(q,tr)::lt
- end
- else acc
- ) a.phi (Ptset.empty,Ptset.empty,[])
- in
- let rtrue,rfalse,rmay,trs,selnodes =
- List.fold_left (fun (at,af,am,atrs,selnodes) (q,(m,f)) ->
- let ppf = Format.err_formatter in
- match (*may_eval (r1,r2) f t *) `Maybe with
- | `True ->
- (* Format.fprintf ppf "Will skip (%i) %s " q (if m then "=>" else "->");
- pr_frm ppf f;
- Format.fprintf ppf ", always true \n"; *)
- (Ptset.add q at),af,am,atrs,TS.add t selnodes
- | `False ->
- (*Format.fprintf ppf "Will skip (%i) %s " q (if m then "=>" else "->");
- pr_frm ppf f;
- Format.fprintf ppf ", always false \n"; *)
- at,(Ptset.add q af),am,atrs,selnodes
-
- | `Maybe ->
-(* Format.fprintf ppf "Must take (%i) %s " q (if m then "=>" else "->");
- pr_frm ppf f;
- Format.fprintf ppf "\n"; *)
- at,af,(Ptset.add q am),(q,(m,f))::atrs,selnodes)
- (Ptset.empty,Ptset.empty,Ptset.empty,[],TS.empty) trs
+ let cons s l = Cons (s,(Ptset.hash s) + 65599 * (hpl l), l)
+
+ let rec empty_size n =
+ if n == 0 then Nil
+ else cons Ptset.empty (empty_size (n-1))
+
+ let fold_pl f l acc =
+ let rec loop l acc = match l with
+ Nil -> acc
+ | Cons(s,h,pl) -> loop pl (f s h acc)
in
- let rr1,rr2,trs =
- List.fold_left (fun ((ar1,ar2,trs)as acc) ((q,(_,f)as tr)) ->
- if Ptset.mem q rmay
- then let ls,rs = f.st in
- Ptset.union ls ar1,Ptset.union rs ar2,tr::trs
- else acc) (Ptset.empty,Ptset.empty,[]) trs
+ loop l acc
+ let map_pl f l =
+ let rec loop =
+ function Nil -> Nil
+ | Cons(s,h,ll) -> cons (f s) (loop ll)
+ in loop l
+ let iter_pl f l =
+ let rec loop =
+ function Nil -> ()
+ | Cons(s,h,ll) -> (f s);(loop ll)
+ in loop l
+
+ let rev_pl l =
+ let rec loop acc l = match l with
+ | Nil -> acc
+ | Cons(s,_,ll) -> loop (cons s acc) ll
in
- let s1,res1 = accepting_among a t1 rr1
- and s2,res2 = accepting_among a t2 rr2
+ loop Nil l
+
+ let rev_map_pl f l =
+ let rec loop acc l =
+ match l with
+ | Nil -> acc
+ | Cons(s,_,ll) -> loop (cons (f s) acc) ll
in
- let res,set,mark,trs = List.fold_left (fun ((sel_nodes,res,amark,acctr) as acc) (q,(mark,f)) ->
- let b,resnodes = eval_form f s1 s2 res1 res2 in
- (* if b then begin
- pr_st Format.err_formatter (Ptset.elements s1);
- Format.fprintf Format.err_formatter ",";
- pr_st Format.err_formatter (Ptset.elements s2);
- Format.fprintf Format.err_formatter " satisfies ";
- pr_frm Format.err_formatter f;
- Format.fprintf Format.err_formatter " for input tree %s\n" (Tag.to_string tag);
- end; *)
- if b
- then
- (TS.union
- (if mark then TS.add t resnodes else resnodes)
- sel_nodes)
- ,Ptset.add q res,amark||mark,(q,mark,f)::acctr
- else acc
- ) (TS.empty,rtrue,false,[]) trs
- in
-
- let set = Ptset.union a.final set in
- let _ = D(Hashtbl.add traces (Tree.id t) (TNode(r,set,mark,trs))) in
- set,res
+ loop Nil l
+
+ let td_trans = Hashtbl.create 4096
+
-
- let run a t =
- let st,res = accepting_among a t a.init in
- let b = Ptset.is_empty (st) in
- let _ = D(dump_trace t) in
- if b then []
- else (TS.elements res)
+ let choose_jump tagset qtags1 qtagsn a f_nil f_text f_t1 f_s1 f_tn f_sn f_notext =
+ let tags1,hastext1,fin1 = inter_text tagset (tags a qtags1) in
+ let tagsn,hastextn,finn = inter_text tagset (tags a qtagsn) in
+(* Format.fprintf Format.err_formatter "Tags below states ";
+ pr_st Format.err_formatter (Ptset.elements qtags1);
+ Format.fprintf Format.err_formatter " are { ";
+ Ptset.iter (fun t -> Format.fprintf Format.err_formatter "%s " (Tag.to_string t)) tags1;
+ Format.fprintf Format.err_formatter "}, %b,%b\n%!" hastext1 fin1;
+
+ Format.fprintf Format.err_formatter "Tags below states ";
+ pr_st Format.err_formatter (Ptset.elements qtagsn);
+ Format.fprintf Format.err_formatter " are { ";
+ Ptset.iter (fun t -> Format.fprintf Format.err_formatter "%s " (Tag.to_string t)) tagsn;
+ Format.fprintf Format.err_formatter "}, %b,%b\n%!" hastextn finn;
+*)
+ if (hastext1||hastextn) then f_text (* jumping to text nodes doesn't work really well *)
+ else if (Ptset.is_empty tags1) && (Ptset.is_empty tagsn) then f_nil
+ else if (Ptset.is_empty tagsn) then
+ if (Ptset.is_singleton tags1) then f_t1 (Ptset.choose tags1) (* TaggedChild/Sibling *)
+ else f_s1 tags1 (* SelectChild/Sibling *)
+ else if (Ptset.is_empty tags1) then
+ if (Ptset.is_singleton tagsn) then f_tn (Ptset.choose tagsn) (* TaggedDesc/Following *)
+ else f_sn tagsn (* SelectDesc/Following *)
+ else f_notext
- end
+ let choose_jump_down a b c d =
+ choose_jump a b c d
+ (Tree.mk_nil)
+ (Tree.text_below)
+ (*fun x -> let i,j = Tree.doc_ids x in
+ let res = Tree.text_below x in
+ Printf.printf "Calling text_below %s (tag=%s), docids= (%i,%i), res=%s\n"
+ (Tree.dump_node x) (Tag.to_string (Tree.tag x)) i j (Tree.dump_node res);
+ res*)
+ (fun _ -> Tree.node_child ) (* !! no tagged_child in Tree.ml *)
+ (fun _ -> Tree.node_child ) (* !! no select_child in Tree.ml *)
+ (Tree.tagged_desc)
+ (fun _ -> Tree.node_child ) (* !! no select_desc *)
+ (Tree.node_child)
+
+ let choose_jump_next a b c d =
+ choose_jump a b c d
+ (fun t _ -> Tree.mk_nil t)
+ (Tree.text_next)
+ (*fun x y -> let i,j = Tree.doc_ids x in
+ let res = Tree.text_next x y in
+ Printf.printf "Calling text_next %s (tag=%s) ctx=%s, docids= (%i,%i), res=%s\n"
+ (Tree.dump_node x) (Tag.to_string (Tree.tag x)) (Tree.dump_node y) i j (Tree.dump_node res);
+ res*)
+
+ (fun _ -> Tree.node_sibling_ctx) (* !! no tagged_sibling in Tree.ml *)
+ (fun _ -> Tree.node_sibling_ctx) (* !! no select_child in Tree.ml *)
+ (Tree.tagged_foll_below)
+ (fun _ -> Tree.node_sibling_ctx) (* !! no select_foll *)
+ (Tree.node_sibling_ctx)
+
+
+ let get_trans slist tag a t =
+ try
+ Hashtbl.find td_trans (tag,hpl slist)
+ with
+ | Not_found ->
+ let fl_list,llist,rlist,ca,da,sa,fa =
+ fold_pl
+ (fun set _ (fll_acc,lllacc,rllacc,ca,da,sa,fa) -> (* For each set *)
+ let fl,ll,rr,ca,da,sa,fa =
+ Ptset.fold
+ (fun q acc ->
+ fst (
+ List.fold_left
+ (fun (((fl_acc,ll_acc,rl_acc,c_acc,d_acc,s_acc,f_acc),h_acc) as acc)
+ (ts,(m,f,_)) ->
+ if (TagSet.mem tag ts)
+ then
+ let (child,desc,below),(sibl,foll,after) = f.st in
+ let h_acc = HASHINT3(h_acc,f.fid,HASHINT2(q,vb m)) in
+ ((Formlist.cons q f h_acc m fl_acc,
+ Ptset.union ll_acc below,
+ Ptset.union rl_acc after,
+ Ptset.union child c_acc,
+ Ptset.union desc d_acc,
+ Ptset.union sibl s_acc,
+ Ptset.union foll f_acc),
+ h_acc)
+ else acc ) (acc,0) (
+ try Hashtbl.find a.phi q
+ with
+ Not_found -> Printf.eprintf "Looking for state %i, doesn't exist!!!\n%!"
+ q;[]
+ ))
+
+ ) set (Formlist.nil,Ptset.empty,Ptset.empty,ca,da,sa,fa)
+ in fl::fll_acc, cons ll lllacc, cons rr rllacc,ca,da,sa,fa)
+ slist ([],Nil,Nil,Ptset.empty,Ptset.empty,Ptset.empty,Ptset.empty)
+ in
+ (* Logic to chose the first and next function *)
+ let tags_below,tags_after = Tree.tags t tag in
+ let first = choose_jump_down tags_below ca da a
+ and next = choose_jump_next tags_after sa fa a in
+ let v = (fl_list,llist,rlist,first,next) in
+ Hashtbl.add td_trans (tag, hpl slist) v; v
+
+ let merge rb rb1 rb2 mark t res1 res2 =
+ if rb
+ then
+ let res1 = if rb1 then res1 else RS.empty
+ and res2 = if rb2 then res2 else RS.empty
+ in
+ if mark then RS.cons t (RS.concat res1 res2)
+ else RS.concat res1 res2
+ else RS.empty
+
+ let top_down ?(noright=false) a t slist ctx slot_size =
+ let pempty = empty_size slot_size in
+ let eval_fold2_slist fll sl1 sl2 res1 res2 t =
+ let res = Array.copy res1 in
+ let rec fold l1 l2 fll i aq = match l1,l2,fll with
+ | Cons(s1,_,ll1), Cons(s2, _ ,ll2),fl::fll ->
+ let r',rb,rb1,rb2,mark = eval_formlist s1 s2 fl in
+(* let _ = pr "Evaluation context : "; pr_st fmt (Ptset.elements s1);
+ pr_st fmt (Ptset.elements s2);
+ pr "Formlist (%i) : " (Formlist.hash fl);
+ Formlist.pr fmt fl;
+ pr "Results : "; pr_st fmt (Ptset.elements r');
+ pr ", %b %b %b %b\n%!" rb rb1 rb2 mark
+ in *)
+ let _ = res.(i) <- merge rb rb1 rb2 mark t res1.(i) res2.(i)
+ in
+ fold ll1 ll2 fll (i+1) (cons r' aq)
+ | Nil, Nil,[] -> aq,res
+ | _ -> assert false
+ in
+ fold sl1 sl2 fll 0 Nil
+ in
+ let null_result() = (pempty,Array.make slot_size RS.empty) in
+ let rec loop t slist ctx =
+ let (a,b) =
+ if Tree.is_nil t then null_result()
+ else
+ let tag = Tree.tag t in
+ let fl_list,llist,rlist,first,next = get_trans slist tag a t in
+(* let _ = pr "For tag %s,node %s, returning formulae list: \n%!"
+ (Tag.to_string tag) (Tree.dump_node t);
+ List.iter (fun f -> Formlist.pr fmt f;pr "\n%!") fl_list
+ in*)
+ let sl1,res1 = loop (first t) llist t in
+ let sl2,res2 = loop (next t ctx) rlist ctx in
+ eval_fold2_slist fl_list sl1 sl2 res1 res2 t
+ in
+(* let _ = pr "Inside topdown call: tree was %s, tag = %s" (Tree.dump_node t) (if Tree.is_nil t then "###"
+ else Tag.to_string (Tree.tag t));
+ iter_pl (fun s -> (pr_st fmt (Ptset.elements s))) a;
+ Array.iter (fun i -> pr "%i" (RS.length i)) b;
+ pr "\n%!"; in*) (a,b)
+
+ in
+ let loop_no_right t slist ctx =
+ if Tree.is_nil t then null_result()
+ else
+ let tag = Tree.tag t in
+ let fl_list,llist,rlist,first,next = get_trans slist tag a t in
+ let sl1,res1 = loop (first t) llist t in
+ let sl2,res2 = null_result() in
+ eval_fold2_slist fl_list sl1 sl2 res1 res2 t
+ in
+ (if noright then loop_no_right else loop) t slist ctx
+
+ let run_top_down a t =
+ let init = cons a.init Nil in
+ let _,res = top_down a t init t 1
+ in res.(0)
+ ;;
+
+ module Configuration =
+ struct
+ module Ptss = Set.Make(Ptset)
+ module IMap = Map.Make(Ptset)
+ type t = { hash : int;
+ sets : Ptss.t;
+ results : RS.t IMap.t }
+ let empty = { hash = 0;
+ sets = Ptss.empty;
+ results = IMap.empty;
+ }
+ let is_empty c = Ptss.is_empty c.sets
+ let add c s r =
+ if Ptss.mem s c.sets then
+ { c with results = IMap.add s (RS.concat r (IMap.find s c.results)) c.results}
+ else
+ { hash = HASHINT2(c.hash,Ptset.hash s);
+ sets = Ptss.add s c.sets;
+ results = IMap.add s r c.results
+ }
+
+ let pr fmt c = Format.fprintf fmt "{";
+ Ptss.iter (fun s -> pr_st fmt (Ptset.elements s);
+ Format.fprintf fmt " ") c.sets;
+ Format.fprintf fmt "}\n%!";
+ IMap.iter (fun k d ->
+ pr_st fmt (Ptset.elements k);
+ Format.fprintf fmt "-> %i\n" (RS.length d)) c.results;
+ Format.fprintf fmt "\n%!"
+
+ let merge c1 c2 =
+ let acc1 = IMap.fold (fun s r acc ->
+ IMap.add s
+ (try
+ RS.concat r (IMap.find s acc)
+ with
+ | Not_found -> r) acc) c1.results IMap.empty
+ in
+ let imap =
+ IMap.fold (fun s r acc ->
+ IMap.add s
+ (try
+ RS.concat r (IMap.find s acc)
+ with
+ | Not_found -> r) acc) c2.results acc1
+ in
+ let h,s =
+ Ptss.fold
+ (fun s (ah,ass) -> (HASHINT2(ah,Ptset.hash s),
+ Ptss.add s ass))
+ (Ptss.union c1.sets c2.sets) (0,Ptss.empty)
+ in
+ { hash = h;
+ sets =s;
+ results = imap }
+
+ end
+
+ let h_fold = Hashtbl.create 511
+
+ let fold_f_conf t slist fl_list conf dir=
+ let rec loop sl fl acc =
+ match sl,fl with
+ |Nil,[] -> acc
+ | Cons(s,hs,sll), formlist::fll ->
+ let r',rb,rb1,rb2,mark =
+ try
+ Hashtbl.find h_fold (hs,Formlist.hash formlist,dir)
+ with
+ Not_found -> let res =
+ if dir then eval_formlist ~memo:false s Ptset.empty formlist
+ else eval_formlist ~memo:false Ptset.empty s formlist
+ in (Hashtbl.add h_fold (hs,Formlist.hash formlist,dir) res;res)
+ in(*
+ let _ = pr "Evaluating on set (%s) with tree %s=%s"
+ (if dir then "left" else "right")
+ (Tag.to_string (Tree.tag t))
+ (Tree.dump_node t) ;
+ pr_st fmt (Ptset.elements s);
+ pr ", formualae (with hash %i): \n" (Formlist.hash formlist);
+ Formlist.pr fmt formlist;
+ pr "result is ";
+ pr_st fmt (Ptset.elements r');
+ pr " %b %b %b %b \n%!" rb rb1 rb2 mark ;
+ in *)
+ if rb && ((dir&&rb1)|| ((not dir) && rb2))
+ then
+ let acc =
+ let old_r =
+ try Configuration.IMap.find s conf.Configuration.results
+ with Not_found -> RS.empty
+ in
+ Configuration.add acc r' (if mark then RS.cons t old_r else old_r)
+ in
+ loop sll fll acc
+ else loop sll fll acc
+ | _ -> assert false
+ in
+ loop slist fl_list Configuration.empty
+
+ let h_trans = Hashtbl.create 4096
+
+ let get_up_trans slist ptag a tree =
+ let key = (HASHINT2(hpl slist,Tag.hash ptag)) in
+ try
+ Hashtbl.find h_trans key
+ with
+ | Not_found ->
+ let f_list,_ =
+ Hashtbl.fold (fun q l acc ->
+ List.fold_left (fun (fl_acc,h_acc) (ts,(m,f,_)) ->
+ if TagSet.mem ptag ts
+ then
+ let h_acc = HASHINT3(h_acc,f.fid,HASHINT2(q,vb m)) in
+ (Formlist.cons q f h_acc m fl_acc,
+ h_acc)
+ else (fl_acc,h_acc))
+ acc l)
+ a.phi (Formlist.nil,0)
+ in
+ let res = fold_pl (fun _ _ acc -> f_list::acc) slist []
+ in
+ (Hashtbl.add h_trans key res;res)
+
+
+ let h_tdconf = Hashtbl.create 511
+ let rec bottom_up a tree conf next jump_fun root dotd init accu =
+ if (not dotd) && (Configuration.is_empty conf ) then
+(* let _ = pr "Returning early from %s, with accu %i, next is %s\n%!"
+ (Tree.dump_node tree) (Obj.magic accu) (Tree.dump_node next)
+ in *)
+ accu,conf,next
+ else
+(* let _ =
+ pr "Going bottom up for tree with tag %s configuration is"
+ (if Tree.is_nil tree then "###" else Tag.to_string (Tree.tag tree));
+ Configuration.pr fmt conf
+ in *)
+ let below_right = Tree.is_below_right tree next in
+ (* let _ = Format.fprintf Format.err_formatter "below_right %s %s = %b\n%!"
+ (Tree.dump_node tree) (Tree.dump_node next) below_right
+ in *)
+ let accu,rightconf,next_of_next =
+ if below_right then (* jump to the next *)
+(* let _ = pr "Jumping to %s tag %s\n%!" (Tree.dump_node next) (Tag.to_string (Tree.tag next)) in *)
+ bottom_up a next conf (jump_fun next) jump_fun (Tree.next_sibling tree) true init accu
+ else accu,Configuration.empty,next
+ in
+(* let _ = if below_right then pr "Returning from jump to next = %s\n" (Tree.dump_node next)in *)
+ let sub =
+ if dotd then
+ if below_right then (* only recurse on the left subtree *)
+(* let _ = pr "Topdown on left subtree\n%!" in *)
+ prepare_topdown a tree true
+ else
+(* let _ = pr "Topdown on whole tree\n%!" in *)
+ prepare_topdown a tree false
+ else conf
+ in
+ let conf,next =
+ (Configuration.merge rightconf sub, next_of_next)
+ in
+ if Tree.equal tree root then
+(* let _ = pr "Stopping at root, configuration after topdown is:" ;
+ Configuration.pr fmt conf;
+ pr "\n%!"
+ in *) accu,conf,next
+ else
+ let parent = Tree.binary_parent tree in
+ let ptag = Tree.tag parent in
+ let dir = Tree.is_left tree in
+ let slist = Configuration.Ptss.fold (fun e a -> cons e a) conf.Configuration.sets Nil in
+ let fl_list = get_up_trans slist ptag a parent in
+ let slist = rev_pl (slist) in
+(* let _ = pr "Current conf is : %s " (Tree.dump_node tree);
+ Configuration.pr fmt conf;
+ pr "\n"
+ in *)
+ let newconf = fold_f_conf parent slist fl_list conf dir in
+(* let _ = pr "New conf before pruning is (dir=%b):" dir;
+ Configuration.pr fmt newconf ;
+ pr "accu is %i\n" (RS.length accu);
+ in *)
+ let accu,newconf = Configuration.IMap.fold (fun s res (ar,nc) ->
+ if Ptset.intersect s init then
+ ( RS.concat res ar ,nc)
+ else (ar,Configuration.add nc s res))
+ (newconf.Configuration.results) (accu,Configuration.empty)
+ in
+(* let _ = pr "New conf after pruning is (dir=%b):" dir;
+ Configuration.pr fmt newconf ;
+ pr "accu is %i\n" (RS.length accu);
+ in *)
+ bottom_up a parent newconf next jump_fun root false init accu
+
+ and prepare_topdown a t noright =
+ let tag = Tree.tag t in
+(* pr "Going top down on tree with tag %s = %s "
+ (if Tree.is_nil t then "###" else (Tag.to_string(Tree.tag t))) (Tree.dump_node t); *)
+ let r =
+ try
+ Hashtbl.find h_tdconf tag
+ with
+ | Not_found ->
+ let res = Hashtbl.fold (fun q l acc ->
+ if List.exists (fun (ts,_) -> TagSet.mem tag ts) l
+ then Ptset.add q acc
+ else acc) a.phi Ptset.empty
+ in Hashtbl.add h_tdconf tag res;res
+ in
+(* let _ = pr ", among ";
+ pr_st fmt (Ptset.elements r);
+ pr "\n%!";
+ in *)
+ let r = cons r Nil in
+ let set,res = top_down (~noright:noright) a t r t 1 in
+ let set = match set with
+ | Cons(x,_,Nil) ->x
+ | _ -> assert false
+ in
+(* pr "Result of topdown run is %!";
+ pr_st fmt (Ptset.elements set);
+ pr ", number is %i\n%!" (RS.length res.(0)); *)
+ Configuration.add Configuration.empty set res.(0)
+
+
+
+ let run_bottom_up a t k =
+ let trlist = Hashtbl.find a.phi (Ptset.choose a.init)
+ in
+ let init = List.fold_left
+ (fun acc (_,(_,f,_)) ->
+ Ptset.union acc (let (_,_,l) = fst (f.st) in l))
+ Ptset.empty trlist
+ in
+ let tree1,jump_fun =
+ match k with
+ | `TAG (tag) ->
+ (*Tree.tagged_lowest t tag, fun tree -> Tree.tagged_next tree tag*)
+ (Tree.tagged_desc tag t, fun tree -> Tree.tagged_foll_below tag tree t)
+ | `CONTAINS(_) -> (Tree.text_below t,fun tree -> Tree.text_next tree t)
+ | _ -> assert false
+ in
+ let tree2 = jump_fun tree1 in
+ let rec loop tree next acc =
+(* let _ = pr "\n_________________________\nNew iteration\n" in
+ let _ = pr "Jumping to %s\n%!" (Tree.dump_node tree) in *)
+ let acc,conf,next_of_next = bottom_up a tree
+ Configuration.empty next jump_fun (Tree.root tree) true init acc
+ in
+ (* let _ = pr "End of first iteration, conf is:\n%!";
+ Configuration.pr fmt conf
+ in *)
+ let acc = Configuration.IMap.fold
+ ( fun s res acc -> if Ptset.intersect init s
+ then RS.concat res acc else acc) conf.Configuration.results acc
+ in
+ if Tree.is_nil next_of_next (*|| Tree.equal next next_of_next *)then
+ acc
+ else loop next_of_next (jump_fun next_of_next) acc
+ in
+ loop tree1 tree2 RS.empty
+
+
+ end
+
+ let top_down_count a t = let module RI = Run(Integer) in Integer.length (RI.run_top_down a t)
+ let top_down a t = let module RI = Run(IdSet) in (RI.run_top_down a t)
+ let bottom_up_count a t k = let module RI = Run(Integer) in Integer.length (RI.run_bottom_up a t k)
+
+
projects / SXSI / xpathcomp.git / blobdiff