All the equalityTactics have now been ported to use both the equality of

[helm.git] / helm / matita / matitaDb.ml

diff --git a/helm/matita/matitaDb.ml b/helm/matita/matitaDb.ml
index d4f5d01b1979246528a51eee128d46e4e175d214..17aac37450cf091faad1fbaced5d1589eb89f408 100644 (file)
--- a/helm/matita/matitaDb.ml
+++ b/helm/matita/matitaDb.ml
@@ -112,7 +112,7 @@ let create_owner_environment () =
 (* removes uri from the ownerized tables, and returns the list of other objects
  * (theyr uris) that ref the one removed. 
  * AFAIK there is no need to return it, since the MatitaTypes.staus should
- * contain all defined objects. but to double ckeck we do not garbage the
+ * contain all defined objects. but to double check we do not garbage the
  * metadata...
  *)
 let remove_uri uri =
@@ -146,13 +146,18 @@ let remove_uri uri =
     let l = ref [] in
     Mysql.iter rc (fun a -> match a.(0) with None ->()|Some a -> l := a:: !l);
     let l = List.sort Pervasives.compare !l in
-    let rec uniq = function 
-      | [] -> []
-      | h::[] -> [h]
-      | h1::h2::tl when h1 = h2 -> uniq (h2 :: tl) 
-      | h1::tl (* when h1 <> h2 *) -> h1 :: uniq tl
-    in
-    uniq l
+    MatitaMisc.list_uniq l
   with
     exn -> raise exn (* no errors should be accepted *)
 
+let xpointers_of_ind uri =
+  let dbd = instance () in
+  let name_tbl =  MetadataTypes.name_tbl () in
+  let query = sprintf 
+    "SELECT source FROM %s WHERE source LIKE '%s#xpointer%%'" name_tbl 
+      (Mysql.escape (UriManager.string_of_uri uri))
+  in
+  let rc = Mysql.exec dbd query in
+  let l = ref [] in
+  Mysql.iter rc (fun a ->  match a.(0) with None ->()|Some a -> l := a:: !l);
+  List.map UriManager.uri_of_string !l