else if (comp_node t h1 h2) then h1::(union_list t ll1 l2)
else h1 ::(union_list t ll1 ll2)
+let rec merge_list t l1 l2 =
+ match l1,l2 with
+ | [],l2 -> l2
+ | l1,[] -> l1
+ | h1::ll1, h2::ll2 -> if (comp_node t h2 h1) then h1:: (merge_list t ll1 l2)
+ else if (comp_node t h1 h2) then h2:: (merge_list t l1 ll2)
+ else h1::(merge_list t ll1 ll2)
+
let rec inter_list t l1 l2 =
match l1,l2 with
| [],l2 -> []
| n1::ll1,n2::ll2 -> let b = compare_node tree n1 n2 in
if b=0 then compare_node_list tree ll1 ll2
else b
-
+
+let get_list_ordred tree ll =
+ let l1 = List.fold_left (fun acc l -> merge_list tree acc l) [] ll in
+ List.rev l1
+
let get_descendant tree ln =
let rec aux n acc =
if n == Naive_tree.nil then acc
let acc2 = aux n2 acc1 in
acc2
in
- let l = List.fold_left (fun acc n -> if List.mem n acc then acc
+ let ll = List.map (fun n ->
+ let n1 = Naive_tree.first_child tree n in
+ aux n1 [] ) ln in
+ get_list_ordred tree ll
+ (* let l = List.fold_left (fun acc n -> if List.mem n acc then acc
else let n1 = Naive_tree.first_child tree n in
aux n1 acc) [] ln
in
- List.rev l
+ List.rev l *)
let get_child tree ln =
let rec aux n acc =
in
let ll = List.map (fun n->
let n1 = Naive_tree.first_child tree n in
- let res = aux n1 [] in
- List.rev res
- ) ln in
- List.fold_left (fun acc l -> union_list tree acc l) [] ll
+ aux n1 [] ) ln in
+ get_list_ordred tree ll
let get_followingSibling tree ln =
if n1 == Naive_tree.nil then acc
else aux n1 (n1::acc)
in
- let ll = List.map (fun n -> let res = aux n [] in
- List.rev res ) ln in
- List.fold_left (fun acc l1 -> union_list tree acc l1) [] ll
+ let ll = List.map (fun n -> aux n [] ) ln in
+ get_list_ordred tree ll
let rec get_firstBling tree n pred =
else get_firstBling tree (Naive_tree.prev_sibling tree n) n
let get_parent tree ln =
- let l = List.fold_left (fun acc n ->
+ List.fold_left (fun acc n ->
let n1 = get_firstBling tree n Naive_tree.nil in
let n2 = Naive_tree.parent_of_first tree n1 in
- if n2 == Naive_tree.nil or List.mem n2 acc then acc
- else union_list tree [n2] acc
+ if n2 != Naive_tree.nil then union_list tree [n2] acc
+ else acc
) [] ln
- in
- l
-
-
+
let get_ancestor tree ln =
let rec aux tree l1 acc =