X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2FgTopLevel%2FgTopLevel.ml;h=88b6f9206b83dd3ca8552093253061b207c9a30f;hb=b0f879da074adb838681869bf401c97d0a860c6b;hp=d0aef1a04210608320f73eaf3b50a8baebb49212;hpb=3066e4dcb7270a5eb20020a91d45da9eb87e2f2e;p=helm.git

diff --git a/helm/gTopLevel/gTopLevel.ml b/helm/gTopLevel/gTopLevel.ml
index d0aef1a04..88b6f9206 100644
--- a/helm/gTopLevel/gTopLevel.ml
+++ b/helm/gTopLevel/gTopLevel.ml
@@ -61,16 +61,22 @@ let htmlfooter =
 
 (*
 let prooffile = "/home/tassi/miohelm/tmp/currentproof";;
+let prooffile = "/public/sacerdot/currentproof";;
 *)
+
 let prooffile = "/public/sacerdot/currentproof";;
 let prooffiletype = "/public/sacerdot/currentprooftype";;
+
 (*CSC: the getter should handle the innertypes, not the FS *)
 (*
 let innertypesfile = "/home/tassi/miohelm/tmp/innertypes";;
+let innertypesfile = "/public/sacerdot/innertypes";;
 *)
+
 let innertypesfile = "/public/sacerdot/innertypes";;
 let constanttypefile = "/public/sacerdot/constanttype";;
 
+
 (* GLOBAL REFERENCES (USED BY CALLBACKS) *)
 
 let htmlheader_and_content = ref htmlheader;;
@@ -79,6 +85,11 @@ let current_cic_infos = ref None;;
 let current_goal_infos = ref None;;
 let current_scratch_infos = ref None;;
 
+let id_to_uris = ref ([],function _ -> None);;
+
+let check_term = ref (fun _ _ _ -> assert false);;
+let rendering_window = ref None;;
+
 (* COMMAND LINE OPTIONS *)
 
 let usedb = ref true
@@ -115,6 +126,7 @@ let cic_textual_parser_uri_of_uri uri' =
    )
 ;;
 
+
 let term_of_uri uri =
  let module C = Cic in
  let module CTP = CicTextualParser0 in
@@ -125,6 +137,209 @@ let term_of_uri uri =
    | CTP.IndConUri (uri,tyno,consno) -> C.MutConstruct (uri,tyno,consno,[])
 ;;
 
+(* UTILITY FUNCTIONS TO DISAMBIGUATE AN URI *)
+
+exception NoChoice;;
+
+let interactive_user_uri_choice ?(cancel="Cancel") ~title ~msg uris =
+ let choice = ref None in
+ let window = GWindow.dialog ~modal:true ~title () in
+ let lMessage =
+  GMisc.label ~text:msg ~packing:window#vbox#add () in
+ let vbox = GPack.vbox ~border_width:10
+  ~packing:(window#action_area#pack ~expand:true ~padding:4) () in
+ let hbox1 = GPack.hbox ~border_width:10 ~packing:vbox#add () in
+ let combo =
+  GEdit.combo ~popdown_strings:uris ~packing:hbox1#add () in
+ let checkb =
+  GButton.button ~label:"Check"
+   ~packing:(hbox1#pack ~expand:false ~fill:false ~padding:5) () in
+ let hbox = GPack.hbox ~border_width:10 ~packing:vbox#add () in
+ let okb =
+  GButton.button ~label:"Ok"
+   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
+ let cancelb =
+  GButton.button ~label:cancel
+   ~packing:(hbox#pack ~expand:false ~fill:false ~padding:5) () in
+ (* actions *)
+ let ok_callback () =
+  choice := Some combo#entry#text ;
+  window#destroy ()
+ in
+ let check_callback () = !check_term [] [] (term_of_uri combo#entry#text) in
+  ignore (window#connect#destroy GMain.Main.quit) ;
+  ignore (cancelb#connect#clicked window#destroy) ;
+  ignore (okb#connect#clicked ok_callback) ;
+  ignore (checkb#connect#clicked check_callback) ;
+  window#set_position `CENTER ;
+  window#show () ;
+  GMain.Main.main () ;
+  match !choice with
+     None -> raise NoChoice
+   | Some uri -> uri
+;;
+
+(* MISC FUNCTIONS *)
+
+(* CSC: IMPERATIVE AND NOT VERY CLEAN, TO GET THE LAST ISSUED QUERY *)
+let get_last_query = 
+ let query = ref "" in
+  MQueryGenerator.set_confirm_query
+   (function q -> query := MQueryUtil.text_of_query q ; true) ;
+  function result -> !query ^ " <h1>Result:</h1> " ^ MQueryUtil.text_of_result result "<br>"
+;;
+
+let register_alias (id,uri) =
+ let dom,resolve_id = !id_to_uris in
+  id_to_uris :=
+   (if List.mem id dom then dom else id::dom),
+    function id' -> if id' = id then Some uri else resolve_id id'
+;;  
+
+let output_html outputhtml msg =
+ htmlheader_and_content := !htmlheader_and_content ^ msg ;
+ outputhtml#source (!htmlheader_and_content ^ htmlfooter) ;
+ outputhtml#set_topline (-1)
+;;
+
+let locate_one_id id =
+ let result = MQueryGenerator.locate id in
+ let uris =
+  List.map
+   (function uri,_ ->
+     wrong_xpointer_format_from_wrong_xpointer_format' uri
+   ) result in
+ let html= " <h1>Locate Query: </h1><pre>" ^ get_last_query result ^ "</pre>" in
+  begin
+   match !rendering_window with
+      None -> assert false
+    | Some rw -> output_html rw#outputhtml html ;
+  end ;
+  let uris' =
+   match uris with
+      [] ->
+       (match
+         (GToolbox.input_string ~title:"Unknown input"
+          ("No URI matching \"" ^ id ^ "\" found. Please enter its URI"))
+        with
+           None -> raise NoChoice
+         | Some uri -> ["cic:" ^ uri]
+       )
+    | [uri] -> [uri]
+    | _ ->
+      try
+       [interactive_user_uri_choice
+         ~cancel:"Try every possibility."
+         ~title:"Ambiguous input."
+         ~msg:
+           ("Ambiguous input \"" ^ id ^
+            "\". Please, choose one interpretation:")
+         uris
+       ]
+      with
+       NoChoice -> uris
+  in
+   List.map cic_textual_parser_uri_of_uri uris'
+;;
+
+exception ThereDoesNotExistAnyWellTypedInterpretationOfTheInput;;
+exception AmbiguousInput;;
+
+let disambiguate_input context metasenv dom mk_metasenv_and_expr =
+ let known_ids,resolve_id = !id_to_uris in
+ let dom' =
+  let rec filter =
+   function
+      [] -> []
+    | he::tl ->
+       if List.mem he known_ids then filter tl else he::(filter tl)
+  in
+   filter dom
+ in
+  (* for each id in dom' we get the list of uris associated to it *)
+  let list_of_uris = List.map locate_one_id dom' in
+  (* and now we compute the list of all possible assignments from id to uris *)
+  let resolve_ids =
+   let rec aux ids list_of_uris =
+    match ids,list_of_uris with
+       [],[] -> [resolve_id]
+     | id::idtl,uris::uristl ->
+        let resolves = aux idtl uristl in
+         List.concat
+          (List.map
+            (function uri ->
+              List.map
+               (function f ->
+                 function id' -> if id = id' then Some uri else f id'
+               ) resolves
+            ) uris
+          )
+     | _,_ -> assert false
+   in
+    aux dom' list_of_uris
+  in
+prerr_endline ("##### NE DISAMBIGUO: " ^ string_of_int (List.length resolve_ids)) ;
+   (* now we select only the ones that generates well-typed terms *)
+   let resolve_ids' =
+    let rec filter =
+     function
+        [] -> []
+      | resolve::tl ->
+         let metasenv',expr = mk_metasenv_and_expr resolve in
+          try
+(*CSC: Bug here: we do not try to typecheck also the metasenv' *)
+           ignore
+            (CicTypeChecker.type_of_aux' metasenv context expr) ;
+           resolve::(filter tl)
+          with
+           _ -> filter tl
+    in
+     filter resolve_ids
+   in
+    let resolve_id' =
+     match resolve_ids' with
+        [] -> raise ThereDoesNotExistAnyWellTypedInterpretationOfTheInput
+      | [resolve_id] -> resolve_id
+      | _ ->
+        let choices =
+         List.map
+          (function resolve ->
+            String.concat " ; "
+             (List.map
+              (function id ->
+                id ^ " := " ^
+                 match resolve id with
+                    None -> assert false
+                  | Some uri ->
+                     match uri with
+                        CicTextualParser0.ConUri uri
+                      | CicTextualParser0.VarUri uri ->
+                         UriManager.string_of_uri uri
+                      | CicTextualParser0.IndTyUri (uri,tyno) ->
+                         UriManager.string_of_uri uri ^ "#xpointer(1/" ^
+                          string_of_int (tyno+1) ^ ")"
+                      | CicTextualParser0.IndConUri (uri,tyno,consno) ->
+                         UriManager.string_of_uri uri ^ "#xpointer(1/" ^
+                          string_of_int (tyno+1) ^ "/" ^ string_of_int consno ^                           ")"
+              ) dom
+             )
+          ) resolve_ids'
+        in
+        let choice =
+         GToolbox.question_box ~title:"Ambiguous input."
+          ~buttons:choices
+          ~default:1 "Ambiguous input. Please, choose one interpretation."
+        in
+         if choice > 0 then
+          List.nth resolve_ids' (choice - 1)
+         else
+          (* No choice from the user *)
+          raise NoChoice
+    in
+     id_to_uris := known_ids @ dom', resolve_id' ;
+     mk_metasenv_and_expr resolve_id'
+;;
+
 let domImpl = Gdome.domImplementation ();;
 
 let parseStyle name =
@@ -340,12 +555,6 @@ let mml_of_cic_term metano term =
       res
 ;;
 
-let output_html outputhtml msg =
- htmlheader_and_content := !htmlheader_and_content ^ msg ;
- outputhtml#source (!htmlheader_and_content ^ htmlfooter) ;
- outputhtml#set_topline (-1)
-;;
-
 (***********************)
 (*       TACTICS       *)
 (***********************)
@@ -406,32 +615,38 @@ let call_tactic_with_input tactic rendering_window () =
        None -> assert false
      | Some (uri,metasenv,bo,ty) -> uri,metasenv,bo,ty
    in
+   let canonical_context =
+    match !ProofEngine.goal with
+       None -> assert false
+     | Some metano ->
+        let (_,canonical_context,_) =
+         List.find (function (m,_,_) -> m=metano) metasenv
+        in
+         canonical_context
+   in
    let context =
     List.map
      (function
          Some (n,_) -> Some n
-       | None -> None)
-     (match !ProofEngine.goal with
-         None -> assert false
-       | Some metano ->
-          let (_,canonical_context,_) =
-           List.find (function (m,_,_) -> m=metano) metasenv
-          in
-           canonical_context
-     )
+       | None -> None
+     ) canonical_context
    in
     try
      while true do
       match
-       CicTextualParserContext.main
-        curi context metasenv CicTextualLexer.token lexbuf
+       CicTextualParserContext.main context metasenv CicTextualLexer.token
+        lexbuf register_alias
       with
          None -> ()
-       | Some (metasenv',expr) ->
-          ProofEngine.proof := Some (uri,metasenv',bo,ty) ;
-          tactic expr ;
-          refresh_sequent proofw ;
-          refresh_proof output
+       | Some (dom,mk_metasenv_and_expr) ->
+          let (metasenv',expr) =
+           disambiguate_input canonical_context metasenv dom
+            mk_metasenv_and_expr
+          in
+           ProofEngine.proof := Some (uri,metasenv',bo,ty) ;
+           tactic expr ;
+           refresh_sequent proofw ;
+           refresh_proof output
      done
     with
        CicTextualParser0.Eof ->
@@ -548,34 +763,39 @@ let call_tactic_with_input_and_goal_input tactic rendering_window () =
                     None -> assert false
                   | Some (uri,metasenv,bo,ty) -> uri,metasenv,bo,ty
                 in
+                let canonical_context =
+                 match !ProofEngine.goal with
+                    None -> assert false
+                  | Some metano ->
+                     let (_,canonical_context,_) =
+                      List.find (function (m,_,_) -> m=metano) metasenv
+                     in
+                      canonical_context in
                 let context =
                  List.map
                   (function
                       Some (n,_) -> Some n
-                    | None -> None)
-                  (match !ProofEngine.goal with
-                      None -> assert false
-                    | Some metano ->
-                       let (_,canonical_context,_) =
-                        List.find (function (m,_,_) -> m=metano) metasenv
-                       in
-                        canonical_context
-                  )
+                    | None -> None
+                  ) canonical_context
                 in
                  begin
                   try
                    while true do
                     match
-                     CicTextualParserContext.main curi context metasenv
-                      CicTextualLexer.token lexbuf
+                     CicTextualParserContext.main context metasenv
+                      CicTextualLexer.token lexbuf register_alias
                     with
                        None -> ()
-                     | Some (metasenv',expr) ->
-                        ProofEngine.proof := Some (uri,metasenv',bo,ty) ;
-                        tactic ~goal_input:(Hashtbl.find ids_to_terms id)
-                         ~input:expr ;
-                        refresh_sequent proofw ;
-                        refresh_proof output
+                     | Some (dom,mk_metasenv_and_expr) ->
+                        let (metasenv',expr) =
+                         disambiguate_input canonical_context metasenv dom
+                          mk_metasenv_and_expr
+                        in
+                         ProofEngine.proof := Some (uri,metasenv',bo,ty) ;
+                         tactic ~goal_input:(Hashtbl.find ids_to_terms id)
+                          ~input:expr ;
+                         refresh_sequent proofw ;
+                         refresh_proof output
                    done
                   with
                      CicTextualParser0.Eof ->
@@ -747,7 +967,29 @@ let fourier rendering_window =
 let rewritesimpl rendering_window =
  call_tactic_with_input ProofEngine.rewrite_simpl rendering_window
 ;;
-
+let reflexivity rendering_window =
+ call_tactic ProofEngine.reflexivity rendering_window
+;;
+let symmetry rendering_window =
+ call_tactic ProofEngine.symmetry rendering_window
+;;
+let transitivity rendering_window =
+ call_tactic_with_input ProofEngine.transitivity rendering_window
+;;
+let left rendering_window =
+ call_tactic ProofEngine.left rendering_window
+;;
+let right rendering_window =
+ call_tactic ProofEngine.right rendering_window
+;;
+let assumption rendering_window =
+ call_tactic ProofEngine.assumption rendering_window
+;;
+(*
+let prova_tatticali rendering_window =
+ call_tactic ProofEngine.prova_tatticali rendering_window
+;;
+*)
 
 
 let whd_in_scratch scratch_window =
@@ -1077,16 +1319,22 @@ let state rendering_window () =
     try
      while true do
       (* Execute the actions *)
-      match CicTextualParser.main CicTextualLexer.token lexbuf with
+      match
+       CicTextualParserContext.main [] [] CicTextualLexer.token
+        lexbuf register_alias
+      with
          None -> ()
-       | Some expr ->
-          let _  = CicTypeChecker.type_of_aux' [] [] expr in
-           ProofEngine.proof :=
-            Some (UriManager.uri_of_string "cic:/dummy.con",
-                   [1,[],expr], Cic.Meta (1,[]), expr) ;
-           ProofEngine.goal := Some 1 ;
-           refresh_sequent proofw ;
-           refresh_proof output ;
+       | Some (dom,mk_metasenv_and_expr) ->
+          let metasenv,expr =
+           disambiguate_input [] [] dom mk_metasenv_and_expr
+          in
+           let _  = CicTypeChecker.type_of_aux' metasenv [] expr in
+            ProofEngine.proof :=
+             Some (UriManager.uri_of_string "cic:/dummy.con",
+                    (1,[],expr)::metasenv, Cic.Meta (1,[]), expr) ;
+            ProofEngine.goal := Some 1 ;
+            refresh_sequent proofw ;
+            refresh_proof output ;
      done
     with
        CicTextualParser0.Eof ->
@@ -1105,11 +1353,22 @@ let state rendering_window () =
          ("<h1 color=\"red\">" ^ Printexc.to_string e ^ "</h1>") ;
 ;;
 
+let check_term_in_scratch scratch_window metasenv context expr = 
+ try
+  let ty  = CicTypeChecker.type_of_aux' metasenv context expr in
+   let mml = mml_of_cic_term 111 (Cic.Cast (expr,ty)) in
+prerr_endline ("### " ^ CicPp.ppterm expr ^ " ==> " ^ CicPp.ppterm ty) ;
+    scratch_window#show () ;
+    scratch_window#mmlwidget#load_tree ~dom:mml
+ with
+  e ->
+   print_endline ("? " ^ CicPp.ppterm expr) ;
+   raise e
+;;
+
 let check rendering_window scratch_window () =
  let inputt = (rendering_window#inputt : GEdit.text) in
  let outputhtml = (rendering_window#outputhtml : GHtml.xmhtml) in
- let output = (rendering_window#output : GMathView.math_view) in
- let proofw = (rendering_window#proofw : GMathView.math_view) in
   let inputlen = inputt#length in
   let input = inputt#get_chars 0 inputlen ^ "\n" in
   let curi,metasenv =
@@ -1139,21 +1398,15 @@ let check rendering_window scratch_window () =
      while true do
       (* Execute the actions *)
       match
-       CicTextualParserContext.main curi names_context metasenv
-        CicTextualLexer.token lexbuf
+       CicTextualParserContext.main names_context metasenv CicTextualLexer.token
+        lexbuf register_alias
       with
          None -> ()
-       | Some (metasenv',expr) ->
-          try
-           let ty  = CicTypeChecker.type_of_aux' metasenv' context expr in
-            let mml = mml_of_cic_term 111 (Cic.Cast (expr,ty)) in
-prerr_endline ("### " ^ CicPp.ppterm expr ^ " ==> " ^ CicPp.ppterm ty) ;
-             scratch_window#show () ;
-             scratch_window#mmlwidget#load_tree ~dom:mml
-          with
-           e ->
-            print_endline ("? " ^ CicPp.ppterm expr) ;
-            raise e
+       | Some (dom,mk_metasenv_and_expr) ->
+          let (metasenv',expr) =
+           disambiguate_input context metasenv dom mk_metasenv_and_expr
+          in
+           check_term_in_scratch scratch_window metasenv' context expr
      done
     with
        CicTextualParser0.Eof -> ()
@@ -1164,30 +1417,17 @@ prerr_endline ("### " ^ CicPp.ppterm expr ^ " ==> " ^ CicPp.ppterm ty) ;
 
 exception NoObjectsLocated;;
 
-let user_uri_choice uris =
+let user_uri_choice ~title ~msg uris =
  let uri =
   match uris with
      [] -> raise NoObjectsLocated
    | [uri] -> uri
    | uris ->
-      let choice =
-       GToolbox.question_box ~title:"Ambiguous result."
-        ~buttons:uris ~default:1
-        "Ambiguous result. Please, choose one."
-      in
-       List.nth uris (choice-1)
+      interactive_user_uri_choice ~title ~msg uris
  in
   String.sub uri 4 (String.length uri - 4)
 ;;
 
-(* CSC: IMPERATIVE AND NOT VERY CLEAN, TO GET THE LAST ISSUED QUERY *)
-let get_last_query = 
- let query = ref "" in
-  MQueryGenerator.set_confirm_query
-   (function q -> query := MQueryUtil.text_of_query q ; true) ;
-  function result -> !query ^ " <h1>Result:</h1> " ^ MQueryUtil.text_of_result result "<br>"
-;;
-
 let locate rendering_window () =
  let inputt = (rendering_window#inputt : GEdit.text) in
  let outputhtml = (rendering_window#outputhtml : GHtml.xmhtml) in
@@ -1205,7 +1445,13 @@ let locate rendering_window () =
           result in
 	let html = (" <h1>Locate Query: </h1><pre>" ^ get_last_query result ^ "</pre>") in
          output_html outputhtml html ;
-         let uri' = user_uri_choice uris in
+         let uri' =
+          user_uri_choice ~title:"Ambiguous input."
+           ~msg:
+             ("Ambiguous input \"" ^ head ^
+              "\". Please, choose one interpetation:")
+           uris
+         in
           ignore ((inputt#insert_text uri') ~pos:0)
    with
     e ->
@@ -1272,7 +1518,11 @@ let searchPattern rendering_window () =
              string_of_int (List.length uris') ^ "</h1>"
            in
             output_html outputhtml html' ;
-            let uri' = user_uri_choice uris' in
+            let uri' =
+             user_uri_choice ~title:"Ambiguous input."
+             ~msg:"Many lemmas can be successfully applied. Please, choose one:"
+              uris'
+            in
              inputt#delete_text 0 inputlen ;
              ignore ((inputt#insert_text uri') ~pos:0)
     with
@@ -1592,6 +1842,31 @@ class rendering_window output proofw (label : GMisc.label) =
  let rewritesimplb =
   GButton.button ~label:"RewriteSimpl ->"
    ~packing:(hbox4#pack ~expand:false ~fill:false ~padding:5) () in
+ let reflexivityb =
+  GButton.button ~label:"Reflexivity"
+   ~packing:(hbox4#pack ~expand:false ~fill:false ~padding:5) () in
+ let symmetryb =
+  GButton.button ~label:"Symmetry"
+   ~packing:(hbox4#pack ~expand:false ~fill:false ~padding:5) () in
+ let transitivityb =
+  GButton.button ~label:"Transitivity"
+   ~packing:(hbox4#pack ~expand:false ~fill:false ~padding:5) () in
+ let hbox5 =
+  GPack.hbox ~packing:(vbox1#pack ~expand:false ~fill:false ~padding:5) () in
+ let leftb =
+  GButton.button ~label:"Left"
+   ~packing:(hbox5#pack ~expand:false ~fill:false ~padding:5) () in
+ let rightb =
+  GButton.button ~label:"Right"
+   ~packing:(hbox5#pack ~expand:false ~fill:false ~padding:5) () in
+ let assumptionb =
+  GButton.button ~label:"Assumption"
+   ~packing:(hbox5#pack ~expand:false ~fill:false ~padding:5) () in
+(*
+ let prova_tatticalib =
+  GButton.button ~label:"Prova_tatticali"
+   ~packing:(hbox5#pack ~expand:false ~fill:false ~padding:5) () in
+*)
  let outputhtml =
   GHtml.xmhtml
    ~source:"<html><body bgColor=\"white\"></body></html>"
@@ -1608,6 +1883,7 @@ object(self)
  method show = window#show
  initializer
   button_export_to_postscript#misc#set_sensitive false ;
+  check_term := (check_term_in_scratch scratch_window) ;
 
   (* signal handlers here *)
   ignore(output#connect#selection_changed
@@ -1647,6 +1923,15 @@ object(self)
   ignore(clearb#connect#clicked (clear self)) ;
   ignore(fourierb#connect#clicked (fourier self)) ;
   ignore(rewritesimplb#connect#clicked (rewritesimpl self)) ;
+  ignore(reflexivityb#connect#clicked (reflexivity self)) ;
+  ignore(symmetryb#connect#clicked (symmetry self)) ;
+  ignore(transitivityb#connect#clicked (transitivity self)) ;
+  ignore(leftb#connect#clicked (left self)) ;
+  ignore(rightb#connect#clicked (right self)) ;
+  ignore(assumptionb#connect#clicked (assumption self)) ;
+(*
+  ignore(prova_tatticalib#connect#clicked (prova_tatticali self)) ;
+*)
   ignore(introsb#connect#clicked (intros self)) ;
   Logger.log_callback :=
    (Logger.log_to_html ~print_and_flush:(output_html outputhtml))
@@ -1654,8 +1939,6 @@ end;;
 
 (* MAIN *)
 
-let rendering_window = ref None;;
-
 let initialize_everything () =
  let module U = Unix in
   let output = GMathView.math_view ~width:350 ~height:280 ()
@@ -1671,54 +1954,8 @@ let initialize_everything () =
 
 let _ =
  if !usedb then
-  begin
-(*
-   Mqint.init "dbname=helm" ;
-*)
-   Mqint.init "host=mowgli.cs.unibo.it dbname=helm_mowgli user=helm" ;
-   CicTextualParser0.set_locate_object
-    (function id ->
-      let result = MQueryGenerator.locate id in
-      let uris =
-       List.map
-        (function uri,_ ->
-          wrong_xpointer_format_from_wrong_xpointer_format' uri
-        ) result in
-      let html =
-       (" <h1>Locate Query: </h1><pre>" ^ get_last_query result ^ "</pre>")
-      in
-       begin
-        match !rendering_window with
-           None -> assert false
-         | Some rw -> output_html rw#outputhtml html ;
-       end ;
-       let uri = 
-        match uris with
-           [] ->
-            (match
-              (GToolbox.input_string ~title:"Unknown input"
-               ("No URI matching \"" ^ id ^ "\" found. Please enter its URI"))
-             with
-                None -> None
-              | Some uri -> Some ("cic:" ^ uri)
-            )
-         | [uri] -> Some uri
-         | _ ->
-           let choice =
-            GToolbox.question_box ~title:"Ambiguous input."
-             ~buttons:uris ~default:1 "Ambiguous input. Please, choose one."
-           in
-            if choice > 0 then
-             Some (List.nth uris (choice - 1))
-            else
-             (* No choice from the user *)
-             None
-       in
-        match uri with
-           Some uri' -> Some (cic_textual_parser_uri_of_uri uri')
-         | None -> None
-    )
-  end ;
+(* Mqint.init "dbname=helm_mowgli" ; *)
+ Mqint.init "host=mowgli.cs.unibo.it dbname=helm_mowgli user=helm" ;
  ignore (GtkMain.Main.init ()) ;
  initialize_everything () ;
  if !usedb then Mqint.close ();