+(* 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/.
+ *)
(*
* implementazione dei comandi USE/USED BY
*
* output: string list list; lista su cui e' stato eseguito il
* comando USE/USED BY
- *
- * TODO
- * USE e USED BY sono identici dal punto di vista algoritmico, per questo
- * sono stati accorpati in una sola funzione; stilisticamente, sarebbe meglio
- * avere due implementazioni distinte...
*)
-let use_ex alist asvar usek =
+let get_prop_id prop =
+ if prop="refObj" then "F"
+ else if prop="backPointer" then "B"
+ else assert false
+ ;;
+
+
+let relation_ex rop path rset attl =
+ let usek = get_prop_id (List.hd path) in
+
+let _ = print_string ("RELATION "^usek)
+and t = Sys.time () in
+let result =
let c = pgc () in
- List.fold_left
- (fun parziale xres ->
- let r1 = pgresult_to_string (c#exec
- ("select att0 from property where att2='" ^ usek ^ "'"))
- and r2 = pgresult_to_string (c#exec
- "select att0 from property where att2='position'")
- and r3 = pgresult_to_string (c#exec
- "select att0 from property where att2='occurrence'")
- in
- let res = c#exec (
- "select distinct t" ^ r3 ^ ".att1, t" ^ r2 ^ ".att1 " ^
- "from t" ^ r3 ^ ", t" ^ r2 ^ ", t" ^ r1 ^ " " ^
- "where " ^ "t" ^ r1 ^ ".att0 = '" ^ (List.hd xres) ^ "' and t" ^ r1 ^
- ".att1 = t" ^ r2 ^ ".att0 and t" ^ r1 ^ ".att1 = t" ^ r3 ^
- ".att0")
- in
- parziale
- @
- if not (List.mem asvar (List.tl (List.hd alist))) then
- List.map
- (fun l -> [List.hd l] @ List.tl xres @ List.tl l)
- res#get_list
- else
- List.map
- (fun l ->
- let t =
- match xres with
- hd::tl -> (List.hd l)::tl
- | [] -> []
- in
- List.map
- snd
- (Utility.set_assoc
- asvar
- (List.hd (List.tl l))
- (List.combine (List.hd alist) t)
- )
- )
- (List.find_all
- (fun l ->
- let currv =
- List.hd (List.tl l)
- and xresv =
- try (
- List.assoc
- asvar
- (List.combine
- (List.tl (List.hd alist))
- (List.tl xres)
- )
- ) with
- Not_found -> ""
- in
- xresv = "" or xresv = currv
- )
- res#get_list
- )
+ Sort.list
+ (fun (uri1-> uri1 < uri2)
+ (List.fold_left
+ (fun parziale (uri,aset)->
+ print_string uri ;
+ let tv =
+ pgresult_to_string
+ (c#exec ("select id from registry where uri='" ^ uri ^ "'"))
+ in
+ let qq =
+ "select uri, context from t" ^ tv ^ " where prop_id='" ^ usek ^
+ "' order by uri asc"
+ in
+ let res = c#exec qq in
+ (List.map
+ (function
+ [uri;context] -> {S.uri = uri ; S.attributes = [asvar, context] ; S.extra = ""}
+ | _ -> assert false
+ ) res#get_list
+ ) @
+ parziale
+ ) [] rset
)
- [ (List.hd alist)
- @
- if not (List.mem asvar (List.tl (List.hd alist))) then
- [asvar]
- else
- []
- ]
- (List.tl alist)
+in
+print_string (" = " ^ string_of_int (List.length result) ^ ": ") ;
+print_endline (string_of_float (Sys.time () -. t) ^ "s") ;
+flush stdout ;
+ result
;;
-(** TEST **)
-
-(*
-let use_ex alist asvar =
- if (List.find_all asvar (List.tl (List.hd alist))) = [] then
- use_ex_nc alist asvar
- else
- use_ex_co alist asvar
-;;
-
-List.map
- (fun l ->
- let t =
- match xres with
- hd::tl -> (List.hd l)::tl
- | [] -> []
- in
- let hash = List.combine (List.hd alist) t in
- snd (set_assoc asvar (snd l) hash)
- )
- (List.find_all
- (fun l ->
- let currv =
- List.hd (List.tl l)
- and xresv =
- try (
- List.assoc asvar (List.combine (List.tl (List.hd alist)) (List.tl xres))
- ) with
- Not_found -> ""
- in
- xresv = "" or xresv = currv
- )
- res#get_list
- )
-;;
-*)