Attribute files added.

diff --git a/helm/ocaml/mathql_interpreter/attribute.cmi b/helm/ocaml/mathql_interpreter/attribute.cmi
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diff --git a/helm/ocaml/mathql_interpreter/attribute.cmx b/helm/ocaml/mathql_interpreter/attribute.cmx
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diff --git a/helm/ocaml/mathql_interpreter/attribute.ml b/helm/ocaml/mathql_interpreter/attribute.ml
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+++ b/helm/ocaml/mathql_interpreter/attribute.ml
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+(* Copyright (C) 2000, HELM Team.
+ * 
+ * This file is part of HELM, an Hypertextual, Electronic
+ * Library of Mathematics, developed at the Computer Science
+ * Department, University of Bologna, Italy.
+ * 
+ * HELM is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * HELM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with HELM; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA  02111-1307, USA.
+ * 
+ * For details, see the HELM World-Wide-Web page,
+ * http://cs.unibo.it/helm/.
+ *)
+
+(*
+ *
+ *)
+
+open Dbconn;;
+open Utility;;
+open Intersect;;
+
+(*
+ * implementazione delle funzioni dublin core
+ *)
+let rec attribute_ex rop path inv = function
+    [] -> []
+  | s::tl -> let tab = List.hd path in
+             if (not inv) then
+               let res =
+               let c = pgc () in
+              let q = ("select " ^ tab ^ ".uri from " ^ tab ^ " where " ^ tab ^ ".value = '" ^ s ^ "'") in
+                    pgresult_to_string_list (c#exec q)
+               in
+               append (res,(attribute_ex rop path inv tl))
+             else
+              let res =
+               let c = pgc () in
+              let q = ("select " ^ tab ^ ".value from " ^ tab ^ " where " ^ tab ^ ".uri = '" ^ s ^ "'") in
+                    pgresult_to_string_list (c#exec q)
+               in
+               append (res,(attribute_ex rop path inv tl))
+
+;;
+

diff --git a/helm/ocaml/mathql_interpreter/attribute.mli b/helm/ocaml/mathql_interpreter/attribute.mli
new file mode 100644 (file)
index 0000000..149d6fc
--- /dev/null
+++ b/helm/ocaml/mathql_interpreter/attribute.mli
@@ -0,0 +1,27 @@
+(* Copyright (C) 2000, HELM Team.
+ * 
+ * This file is part of HELM, an Hypertextual, Electronic
+ * Library of Mathematics, developed at the Computer Science
+ * Department, University of Bologna, Italy.
+ * 
+ * HELM is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * HELM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with HELM; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA  02111-1307, USA.
+ * 
+ * For details, see the HELM World-Wide-Web page,
+ * http://cs.unibo.it/helm/.
+ *)
+
+val attribute_ex: MathQL.refine_op -> MathQL.path -> bool -> MathQL.value -> MathQL.value
+