ajoute l'evaluation d'attributes

[tatoo.git] / src / query_tree.ml

diff --git a/src/query_tree.ml b/src/query_tree.ml
index a1b47a6..1599c4c 100644 (file)
--- a/src/query_tree.ml
+++ b/src/query_tree.ml
@@ -1,6 +1,6 @@
 open Table
 
-
+let compteur = ref 0
 
 let all_nodes tree = let root = Naive_tree.root tree in
                     eval_axis tree [root] (Descendant true)
@@ -46,7 +46,7 @@ and compile_step_list p =
        
   and compile_single_path_rev p = 
     match p with
-      | Absolute p | Relative p -> compile_step_list_rev (List.rev p)
+      | Absolute p | Relative p -> compile_step_list_rev p (*(List.rev p)*)
 
   and compile_step_list_rev p = match p with
     | [] -> Dom         (*assert false*) (*on fait rien , mais comment signifer ???*)
@@ -63,7 +63,7 @@ and compile_step_list p =
       let open Xpath.Ast in
          match a with
              Self -> Self
-           | Attribute -> assert false
+           | Attribute -> Parent
            | Child -> Parent
            | Descendant b -> 
              if not b then (Ancestor false)
@@ -111,7 +111,7 @@ let rec diff_list t l1 l2 =
       else diff_list t ll1 ll2
 
 
-let do_debug = ref true
+let do_debug = ref false
 
 let debug tree q l =
   if !do_debug then begin
@@ -125,24 +125,35 @@ let debug tree q l =
     Format.pp_print_flush Format.std_formatter ();
   end
 
+let table_query_tree = Hashtbl.create 97 
 
+  
 let rec eval_query_tree tree start q =
   let resultat = 
-    match q with
-      | Start ->  start
-      | Dom -> all_nodes tree
-      | Tag t -> element_by_tag tree t
-      | Axis (a,q1) -> let ls = eval_query_tree tree start q1 in
-                      eval_axis tree ls a
-      | Binop (op,q1,q2)-> begin
-       let ls1 = eval_query_tree tree start q1 in
-       let ls2 = eval_query_tree tree start q2 in
-       match op with     
-         | Union -> union_list tree ls1 ls2        
-         | Inter -> inter_list tree ls1 ls2
-         | Diff -> diff_list tree ls1 ls2
-      end
+    begin
+      try
+       Hashtbl.find table_query_tree q
+      with Not_found ->        
+       let res =
+       match q with
+         | Start -> start
+         | Dom ->  all_nodes tree          
+         | Tag t -> element_by_tag tree t                   
+         | Axis (a,q1) -> let ls = eval_query_tree tree start q1 in
+                          eval_axis tree ls a                     
+         | Binop (op,q1,q2)-> begin
+           let ls1 = eval_query_tree tree start q1 in
+           let ls2 = eval_query_tree tree start q2 in
+           match op with         
+             | Union -> union_list tree ls1 ls2            
+             | Inter -> inter_list tree ls1 ls2
+             | Diff -> diff_list tree ls1 ls2
+         end
+       in
+       Hashtbl.add table_query_tree q res;
+       compteur := !compteur + (List.length res);
+       res
+    end
   in
   debug tree q resultat;
   resultat
-