X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fmatita%2FmatitaDb.ml;h=b5b64d46f1d958c7d9c02a48a099253bb3137176;hb=33a02e0b639217093eb63f30169aaa6ac8c78907;hp=d4f5d01b1979246528a51eee128d46e4e175d214;hpb=7d425434a70ed1eae2ef83ebff5adbbbeeaec099;p=helm.git

diff --git a/helm/matita/matitaDb.ml b/helm/matita/matitaDb.ml
index d4f5d01b1..b5b64d46f 100644
--- a/helm/matita/matitaDb.ml
+++ b/helm/matita/matitaDb.ml
@@ -37,6 +37,7 @@ let instance =
 
 
 let xpointer_RE = Pcre.regexp "#.*$"
+let file_scheme_RE = Pcre.regexp "^file://"
 
 let clean_owner_environment () =
   let dbd = instance () in
@@ -65,10 +66,10 @@ let clean_owner_environment () =
     (fun uri ->
       let uri = Pcre.replace ~rex:xpointer_RE ~templ:"" uri in
       List.iter
-        (fun suffix -> 
-          (*prerr_endline ("unregistering " ^ uri ^ suffix);*)
-          Http_getter.unregister (uri ^ suffix))
-        
+        (fun suffix ->
+          try
+           MatitaMisc.safe_remove (Http_getter.resolve (uri ^ suffix))
+          with Http_getter_types.Key_not_found _ -> ())
         [""; ".body"; ".types"])
     owned_uris;
   List.iter (fun statement -> 
@@ -104,6 +105,7 @@ let create_owner_environment () =
          let status = Mysql.status dbd in
          match status with 
          | Mysql.StatusError Mysql.Table_exists_error -> ()
+         | Mysql.StatusError Mysql.Dup_keyname -> ()
          | Mysql.StatusError _ -> raise exn
          | _ -> ()
       ) statements
@@ -112,7 +114,7 @@ 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 +148,19 @@ 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
+