- redesigned error and warning handling for libxslt

[helm.git] / helm / ocaml / mathql_interpreter / pattern.ml

diff --git a/helm/ocaml/mathql_interpreter/pattern.ml b/helm/ocaml/mathql_interpreter/pattern.ml
index 2445e1c760fdae5096914631b5a2f70c2d0a6597..9809552a034c64d55373c3dfcd771157409b5b3c 100644 (file)
--- a/helm/ocaml/mathql_interpreter/pattern.ml
+++ b/helm/ocaml/mathql_interpreter/pattern.ml
@@ -1,14 +1,54 @@
+(* 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://www.cs.unibo.it/helm/.
+ *)
 
 open Dbconn;;
 open Utility;;
-open Eval;;
-
-let pattern_ex apreamble apattern ext afragid =
- let c = pgc () in
-  let r1 = c#exec "select att0 from class where att2='Object'" in
-   let res =
-    c#exec ("select att0 from t" ^ (pgresult_to_string r1) ^
-            " where att0 " ^ (pattern_match apreamble apattern ext afragid))
-   in
-    [["retVal"]] @ List.map (fun l -> [l]) (pgresult_to_string_list res)
+
+let cat l1 l2 =
+    if l1 > l2 then 
+        l2 @ l1
+    else
+        l1 @ l2
 ;;
+
+let rec pattern_ex l =
+  match l with
+     [] -> []
+   | s::tl -> let result = 
+             let c = pgc () in
+             let quoted_s =
+              Str.global_substitute (Str.regexp "'")
+               (function _ -> "\\'") s in
+             let qq = "select uri from registry where uri ~ '" ^ quoted_s ^ "' order by registry.uri asc" in
+             let res = c#exec (qq) in
+             List.map (function uri -> (List.hd uri,[])) res#get_list
+             (*for i = 0 to res#ntuples do 
+            List.map (function uri -> (uri,[])) (res#get_tuple_list i)
+             done*)
+
+            in
+            cat result (pattern_ex tl)
+;;
+