-type move = Self
- | Firstchild
- | Nextsibling
- | Revfirstchild
- | Prevsibling
-
type query_tree_desc = Binop of op * query_tree * query_tree
| Axis of Xpath.Ast.axis * query_tree
| Start
let compare_node tree a b =
compare (Naive_tree.preorder tree a ) (Naive_tree.preorder tree b )
-module Tas = struct
-type 'a tas =
- | Vide
- | Noeud of 'a tas * 'a * 'a tas
-
-let comp_node tree a b = (Naive_tree.preorder tree a )< (Naive_tree.preorder tree b )
-
-let rec size t =
- match t with
- Vide -> 0
- | Noeud (t1,racine,t2) -> 1+ size t1 + size t2
-
-let rec height t =
- match t with
- Vide -> 0
- | Noeud (t1,racine,t2) -> 1 + max (height t1) (height t2)
-
-let equilibre t =
- let rec aux t =
- match t with
- Vide -> 0
- | Noeud (t1,racine,t2) -> 1 + min (aux t1) (aux t2)
- in
- let max_h = height t in
- let min_h = aux t in
- if max_h- min_h >1 then false
- else true
-
-let is_tas t =
- if not (equilibre t) then false
- else
- let rec aux n t =
- match t with
- Vide -> true
- | Noeud (Vide,racine,Vide) -> racine >= n
- | Noeud (t1,racine, t2) -> (aux racine t1) && (aux racine t2)
- in
- aux 0 t
-
-let rec pop tree t =
- match t with
- Vide -> failwith "Tas vide"
- | Noeud (t1, racine, t2) -> begin
- match t1,t2 with
- Vide,t2 -> t2
- | t1,Vide -> t1
- | Noeud (t3,r1,t4),Noeud (t5,r2,t6) -> if comp_node tree r1 r2 then Noeud (pop tree t1, r1,t2)
- else Noeud (pop tree t2, r2, t1)
- end
-
-let rec push tree t a =
- match t with
- Vide -> Noeud(Vide,a,Vide)
- | Noeud (t1,r,t2) -> if comp_node tree a r then Noeud (t2,a,push tree t1 r)
- else Noeud(t2,r, push tree t1 a)
-
-let tas_of_list tree l =
- List.fold_left (push tree) Vide l
-
-let is_empty t = (size t )== 0
-
-let rec list_of_tas tree t =
- match t with
- Vide -> []
- | Noeud(t1,r,t2) -> r::(list_of_tas tree (pop tree t))
-
-let sort_of_list tree l =
- let t = tas_of_list tree l in
- list_of_tas tree t
-
-end
-
-(*28/01/2014
- parametres : tree l'arbre xml
- n un noeud
- m move
- retour :un noeud qui correspond ॆ la relation r
-*)
+let comp_node t n1 n2 = (Naive_tree.preorder t n1) < (Naive_tree.preorder t n2)
+
+
+let rec union_list t l1 l2 =
+ match l1,l2 with
+ | [],l2 -> l2
+ | l1, [] -> l1
+ | h1::ll1, h2::ll2 -> if (comp_node t h2 h1) then h2 :: (union_list t l1 ll2)
+ 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 -> []
+ | l1, [] -> []
+ | h1::ll1, h2::ll2 -> if (comp_node t h1 h2) then inter_list t ll1 l2
+ else if (comp_node t h2 h1) then inter_list t l1 ll2
+ else h1 :: (inter_list t ll1 ll2)
+
+let rec diff_list t l1 l2 =
+ match l1,l2 with
+ | [],l2 -> []
+ | l1, [] -> l1
+ | h1::ll1, h2::ll2 -> if (comp_node t h1 h2) then h1::(diff_list t ll1 l2)
+ else if (comp_node t h2 h1) then h2 :: (diff_list t l1 ll2)
+ else diff_list t ll1 ll2
let print_node_list tree l =
List.iter (fun node ->
| Inter -> Format.fprintf fmt "Inter"
| Diff -> Format.fprintf fmt "Diff"
-let rec eval_relation tree m n =
- match m with
- Self -> n
- | Firstchild -> Naive_tree.first_child tree n
- | Nextsibling -> Naive_tree.next_sibling tree n
- | Revfirstchild -> Naive_tree.parent_of_first tree n
- | Prevsibling -> Naive_tree.prev_sibling tree n
-
-(*28/01/2014
- parametres : tree l'arbre xml
- ls l'ensemble de noeuds
- m move
- retour : l'ensemble de noeuds qui correspondent ॆ la relation r
-*)
-
-
-
-
-let rec eval_move tree ls m =
- match m with
- Self -> ls
- | r -> List.filter (fun n -> n != Naive_tree.nil)
- (List.map (eval_relation tree r) ls)
+let rec compare_node_list tree l1 l2 =
+ match l1,l2 with
+ [],[] -> 0
+ | _,[] -> 1
+ | [],_ -> -1
+ | 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
+ else let n1 = Naive_tree.first_child tree n in
+ let acc1 = aux n1 (n::acc) in
+ let n2 = Naive_tree.next_sibling tree n in
+ let acc2 = aux n2 acc1 in
+ acc2
+ in
+ 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 *)
+
+let get_child tree ln =
+ let rec aux n acc =
+ if n == Naive_tree.nil then acc
+ else
+ let n1 = Naive_tree.next_sibling tree n in
+ aux n1 (n::acc)
+ in
+ let ll = List.map (fun n->
+ let n1 = Naive_tree.first_child tree n in
+ aux n1 [] ) ln in
+ get_list_ordred tree ll
-(*28/01/2014
- parametres : tree l'arbre xml
- ls l'ensemble de noeuds
- m move
- retour : l'ensemble de noeuds qui correspondent ॆ des relations lr
-*)
-
-and eval_star tree ls lr =
- let h = Hashtbl.create 17 in
- let q = Queue.create () in
- List.iter ( fun e -> Queue.add e q ) ls;
- while not (Queue.is_empty q ) do
- let n = Queue.pop q in
- if not (Hashtbl.mem h n) then begin
- Hashtbl.add h n ();
- List.iter ( fun r -> let m = eval_relation tree r n in
- if m != Naive_tree.nil && not (Hashtbl.mem h m ) then begin
-
- Queue.add m q; end
- ) lr
- end
- done;
- let l = Hashtbl.fold (fun k _ acc -> k::acc) h [] in
- Tas.sort_of_list tree l
-(* List.sort (compare_node tree) l *)
-
+
+let get_followingSibling tree ln =
+ let rec aux n acc =
+ let n1 = Naive_tree.next_sibling tree n in
+ if n1 == Naive_tree.nil then acc
+ else aux n1 (n1::acc)
+ in
+ let ll = List.map (fun n -> aux n [] ) ln in
+ get_list_ordred tree ll
+
+
+let rec get_firstBling tree n pred =
+ if n== Naive_tree.nil then pred
+ else get_firstBling tree (Naive_tree.prev_sibling tree n) n
+
+let get_parent tree ln =
+ 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 then union_list tree [n2] acc
+ else acc
+ ) [] ln
+
+let get_ancestor tree ln =
+ let rec aux tree l1 acc =
+ match l1 with
+ [] -> acc
+ | _ -> let ll1 = get_parent tree l1 in
+ let acc1 = union_list tree acc ll1 in
+ aux tree ll1 acc1
+ in
+ let l = aux tree ln [] in
+ l
+
+let get_preSibling tree ln =
+ let rec aux n acc =
+ let n1 = Naive_tree.prev_sibling tree n in
+ if n1 == Naive_tree.nil then acc
+ else aux n1 (n1::acc)
+ in
+ let ll = List.map (fun n -> aux n [] ) ln in
+ List.fold_left (fun acc l1 -> union_list tree acc l1) [] ll
+
+
let rec eval_axis tree ls a =
let open Xpath.Ast in
match a with
Self -> ls
- | Attribute -> let lfc = eval_move tree ls Firstchild in
- let lc = eval_star tree lfc [Nextsibling] in
- lc
+ | Attribute -> get_child tree ls
- | Child -> let lfc = eval_move tree ls Firstchild in
- let lc = eval_star tree lfc [Nextsibling] in
- lc
+ | Child -> get_child tree ls
- | Descendant c -> let lfc = eval_move tree ls Firstchild in
- let ls2 = eval_star tree lfc [Firstchild;Nextsibling] in
+ | Descendant c -> let ls2 = get_descendant tree ls in
let ldes =
- if not c then ls2
- else List.merge (compare_node tree) ls2 ls
+ if not c then ls2
+ else union_list tree ls2 ls
in
ldes
- | FollowingSibling -> let lnexts = eval_move tree ls Nextsibling in
- let lfs = eval_star tree lnexts [Nextsibling] in
- lfs
+ | FollowingSibling -> get_followingSibling tree ls
- | Parent -> let lprevs = eval_star tree ls [Prevsibling] in
- let lp = eval_move tree lprevs Revfirstchild in
- lp
+ | Parent -> get_parent tree ls
- | Ancestor b -> let ls2 = eval_star tree ls [Revfirstchild;Prevsibling] in
- let ls3 = eval_move tree ls2 Revfirstchild in
+ | Ancestor b ->
+ let ls3 = get_ancestor tree ls in
let lac =
if not b then ls3
- else List.merge (compare_node tree ) ls3 ls
+ else union_list tree ls3 ls
in
lac
- | PrecedingSibling -> let ls2 = eval_star tree ls [Prevsibling] in
- let lps = eval_move tree ls2 Prevsibling in
- lps
+ | PrecedingSibling -> get_preSibling tree ls
| Preceding -> let ls2 = eval_axis tree ls (Ancestor true) in
let ls3 = eval_axis tree ls2 PrecedingSibling in
let ls3 = eval_axis tree ls2 FollowingSibling in
let lf = eval_axis tree ls3 (Descendant true) in
lf
-
-
-
+
projects / tatoo.git / blobdiff