X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=components%2Fmetadata%2FmetadataDeps.ml;h=3309843509c65c22af46a3e018c3615f5f96a57c;hb=abdee9194d49a401d15054ae93c7986e4199108e;hp=91fa8004ca14ae49694c98209a751ffb765d2f2b;hpb=a08493538b6e678fd812356dd6965aa31bf1f769;p=helm.git

diff --git a/components/metadata/metadataDeps.ml b/components/metadata/metadataDeps.ml
index 91fa8004c..330984350 100644
--- a/components/metadata/metadataDeps.ml
+++ b/components/metadata/metadataDeps.ml
@@ -91,6 +91,44 @@ let inverse_deps ~dbd uri =
   do_query (MetadataTypes.obj_tbl ())
     @ do_query MetadataTypes.library_obj_tbl
 
+let topological_sort ~dbd uris =
+ let module OrderedUri =
+  struct
+   type t = UriManager.uri
+   let compare = UriManager.compare
+  end in
+ let module Topo = HTopoSort.Make(OrderedUri) in
+  Topo.topological_sort uris
+   (fun uri -> fst (List.split (direct_deps ~dbd uri)))
+
+let sorted_uris_of_baseuri ~dbd baseuri =
+   let sql_pat = 
+      Pcre.replace ~rex:(Pcre.regexp "_") ~templ:"\\_" baseuri ^ "%" 
+   in
+   let query =
+      Printf.sprintf
+         ("SELECT source FROM %s WHERE source LIKE \"%s\" UNION "^^
+          "SELECT source FROM %s WHERE source LIKE \"%s\"")
+         (MetadataTypes.name_tbl ()) sql_pat
+         MetadataTypes.library_name_tbl sql_pat
+   in
+   let result = HMysql.exec dbd query in
+   let map cols = match cols.(0) with
+      | Some s -> UriManager.uri_of_string s
+      | _ -> assert false
+   in
+   let uris = HMysql.map result map in
+   let sorted_uris = topological_sort ~dbd uris in
+   let filter_map uri =
+      let s =
+         Pcre.replace ~rex:(Pcre.regexp "#xpointer\\(1/1\\)") ~templ:""
+                      (UriManager.string_of_uri uri)
+      in
+      try ignore (Pcre.exec ~rex:(Pcre.regexp"#xpointer") s); None
+      with Not_found -> Some (UriManager.uri_of_string s)
+   in
+   HExtlib.filter_map filter_map sorted_uris
+
 module DepGraph =
 struct
   module UriTbl = UriManager.UriHashtbl
@@ -132,7 +170,7 @@ struct
         (*eprintf "Node '%s' not found.\n" (UriManager.string_of_uri uri);*)
         assert false
     in
-    Pp.header ~graph_attrs:["rankdir", "LR"] ~node_attrs:global_node_attrs fmt;
+    Pp.header ~graph_type:"strict digraph" ~graph_attrs:["rankdir", "LR"] ~node_attrs:global_node_attrs fmt;
     let rec aux =
       function
         | [] -> ()