Tree.NodeKind.is_a (Naive_tree.kind tree c) kind &&
QNameSet.mem (Naive_tree.tag tree c) tagset ) dom
+let mk_node q = {desc = q; id = -1; hash = -1}
+
let rec compile_single_path p =
let open Xpath.Ast in
match p with
and compile_step_list p =
match p with
- | [] -> Start
+ | [] -> mk_node Start
| (a,(test,kind),el) :: r ->
let qtree = compile_step_list r in
- let res = Binop ( Inter,Axis (a,qtree), Tag (test,kind) ) in
+ let res = mk_node ( Binop ( Inter,mk_node( Axis (a,qtree)),mk_node (Tag (test,kind) )) ) in
List.fold_left (fun acc e ->
- Binop(Inter, acc, compile_expr e)) res el
+ mk_node (Binop(Inter, acc, compile_expr e))) res el
and compile_expr (e : Xpath.Ast.expr ) = match e with
| Fun_call (f, [ e0 ]) when (QName.to_string f) = "not" ->
let qtree = compile_expr e0 in
- Binop (Diff , Dom, qtree)
+ mk_node (Binop (Diff , mk_node (Dom), qtree))
| Binop (e1,op,e2) -> let qtree1 = compile_expr e1 in
let qtree2 = compile_expr e2 in
begin
match op with
- | Or -> Binop (Union , qtree1,qtree2)
- | And -> Binop (Inter ,qtree1,qtree2)
+ | Or -> mk_node (Binop (Union , qtree1,qtree2))
+ | And -> mk_node (Binop (Inter ,qtree1,qtree2))
| _ -> failwith "Unknown operator"
end
| Path p -> compile_path_rev p
match p with
| [] -> assert false
| [p] -> compile_single_path_rev p
- | p::r -> List.fold_left (fun acc p -> Binop (Union , acc, compile_single_path_rev p) ) (compile_single_path_rev p) r
+ | p::r -> List.fold_left (fun acc p -> mk_node (Binop (Union , acc, compile_single_path_rev p)) ) (compile_single_path_rev p) r
and compile_single_path_rev p =
match p with
- | Absolute p | Relative p -> compile_step_list_rev p (*(List.rev p)*)
+ | Absolute p | Relative p -> compile_step_list_rev p
and compile_step_list_rev p = match p with
- | [] -> Dom
+ | [] -> mk_node Dom
| (a,(test,kind),el) :: r ->
let qtree = compile_step_list_rev r in
- let res = Binop (Inter , qtree, Tag(test,kind)) in
+ let res = mk_node (Binop (Inter , qtree,mk_node (Tag(test,kind)))) in
let qtree2 = List.fold_left (fun acc e ->
- Binop(Inter, acc, compile_expr e)) res el in
+ mk_node (Binop(Inter, acc, compile_expr e))) res el in
let a_rev = axis_rev a in
- Axis (a_rev , qtree2)
+ mk_node (Axis (a_rev , qtree2))
and axis_rev a =
let compile_xpath p = match p with
| [] -> assert false
| [p] -> compile_single_path p
- | p::r -> List.fold_left (fun acc p -> Binop (Union , acc, compile_single_path p) ) (compile_single_path p) r
+ | p::r -> List.fold_left (fun acc p -> mk_node (Binop (Union , acc, compile_single_path p) )) (compile_single_path p) r
let comp_node t n1 n2 = (Naive_tree.preorder t n1) < (Naive_tree.preorder t n2)
Hashtbl.find table_query_tree q
with Not_found ->
let res =
- match q with
+ match q.desc with
| Start -> start
| Dom -> all_nodes tree
| Tag (t,k) -> element_by_tag tree t k