+ let term_RE = Pcre.regexp "^term:(.*)" in
+ let whelp_RE = Pcre.regexp "^\\s*whelp" in
+ let uri_RE =
+ Pcre.regexp
+ "^cic:/(\\w+/)*\\w+\\.(con|ind|var)(#xpointer\\(\\d+(/\\d+)+\\))?$"
+ in
+ let dir_RE = Pcre.regexp "^cic:((/(\\w+/)*\\w+(/)?)|/|)$" in
+ let whelp_query_RE = Pcre.regexp "^\\s*whelp\\s+([^\\s]+)\\s+(.*)$" in
+ let trailing_slash_RE = Pcre.regexp "/$" in
+ let has_xpointer_RE = Pcre.regexp "#xpointer\\(\\d+/\\d+(/\\d+)?\\)$" in
+ let is_whelp txt = Pcre.pmatch ~rex:whelp_RE txt in
+ let is_uri txt = Pcre.pmatch ~rex:uri_RE txt in
+ let is_dir txt = Pcre.pmatch ~rex:dir_RE txt in
+ let gui = MatitaGui.instance () in
+ let win = gui#newBrowserWin () in
+ let queries = ["Locate";"Hint";"Match";"Elim";"Instance"] in
+ let combo,_ = GEdit.combo_box_text ~strings:queries () in
+ let activate_combo_query input q =
+ let q' = String.lowercase q in
+ let rec aux i = function
+ | [] -> failwith ("Whelp query '" ^ q ^ "' not found")
+ | h::_ when String.lowercase h = q' -> i
+ | _::tl -> aux (i+1) tl
+ in
+ combo#set_active (aux 0 queries);
+ win#queryInputText#set_text input
+ in
+ let set_whelp_query txt =
+ let query, arg =
+ try
+ let q = Pcre.extract ~rex:whelp_query_RE txt in
+ q.(1), q.(2)
+ with Invalid_argument _ -> failwith "Malformed Whelp query"
+ in
+ activate_combo_query arg query
+ in
+ let toplevel = win#toplevel in
+ let mathView = sequentViewer ~packing:win#scrolledBrowser#add () in
+ let fail msg =
+ ignore (MatitaGtkMisc.ask_confirmation ~gui:(MatitaGui.instance ())
+ ~title:"Cic browser" ~msg ~cancel:false ());
+ in
+ let tags =
+ [ "dir", GdkPixbuf.from_file (MatitaMisc.image_path "matita-folder.png");
+ "obj", GdkPixbuf.from_file (MatitaMisc.image_path "matita-object.png") ]
+ in
+ let handle_error f =
+ try
+ f ()
+ with exn ->
+ fail (sprintf "Uncaught exception:\n%s" (Printexc.to_string exn))
+ in
+ let handle_error' f = (fun () -> handle_error (fun () -> f ())) in
+ object (self)
+ inherit scriptAccessor
+
+ (* Whelp bar queries *)
+
+ initializer
+ activate_combo_query "" "locate";
+ win#whelpBarComboVbox#add combo#coerce;
+ let start_query () =
+ let query = String.lowercase (List.nth queries combo#active) in
+ let input = win#queryInputText#text in
+ let statement = "whelp " ^ query ^ " " ^ input ^ "." in
+ (MatitaScript.instance ())#advance ~statement ()
+ in
+ ignore(win#queryInputText#connect#activate ~callback:start_query);
+ ignore(combo#connect#changed ~callback:start_query);
+ win#whelpBarImage#set_file (MatitaMisc.image_path "whelp.png");
+ win#mathOrListNotebook#set_show_tabs false;
+
+ win#browserForwardButton#misc#set_sensitive false;
+ win#browserBackButton#misc#set_sensitive false;
+ ignore (win#browserUri#entry#connect#activate (handle_error' (fun () ->
+ self#loadInput win#browserUri#entry#text)));
+ ignore (win#browserHomeButton#connect#clicked (handle_error' (fun () ->
+ self#load (`About `Current_proof))));
+ ignore (win#browserRefreshButton#connect#clicked
+ (handle_error' self#refresh));
+ ignore (win#browserBackButton#connect#clicked (handle_error' self#back));
+ ignore (win#browserForwardButton#connect#clicked
+ (handle_error' self#forward));
+ ignore (win#toplevel#event#connect#delete (fun _ ->
+ let my_id = Oo.id self in
+ cicBrowsers := List.filter (fun b -> Oo.id b <> my_id) !cicBrowsers;
+ if !cicBrowsers = [] &&
+ Helm_registry.get "matita.mode" = "cicbrowser"
+ then
+ GMain.quit ();
+ false));
+ ignore(win#whelpResultTreeview#connect#row_activated
+ ~callback:(fun _ _ -> self#loadInput (self#_getSelectedUri ())));
+ mathView#set_href_callback (Some (fun uri ->
+ handle_error (fun () -> self#load (`Uri uri))));
+ self#_load (`About `Blank);
+ toplevel#show ()
+
+ val mutable current_entry = `About `Blank
+ val mutable current_infos = None
+ val mutable current_mathml = None
+
+ val model =
+ new MatitaGtkMisc.taggedStringListModel tags win#whelpResultTreeview
+
+ method private _getSelectedUri () =
+ match model#easy_selection () with
+ | [sel] when is_uri sel -> sel (* absolute URI selected *)
+ | [sel] -> win#browserUri#entry#text ^ sel (* relative URI selected *)
+ | _ -> assert false
+
+ (** history RATIONALE
+ *
+ * All operations about history are done using _historyFoo.
+ * Only toplevel functions (ATM load and loadInput) call _historyAdd.
+ *)
+
+ method private _historyAdd item =
+ history#add item;
+ win#browserBackButton#misc#set_sensitive true;
+ win#browserForwardButton#misc#set_sensitive false
+
+ method private _historyPrev () =
+ let item = history#previous in
+ if history#is_begin then win#browserBackButton#misc#set_sensitive false;
+ win#browserForwardButton#misc#set_sensitive true;
+ item
+
+ method private _historyNext () =
+ let item = history#next in
+ if history#is_end then win#browserForwardButton#misc#set_sensitive false;
+ win#browserBackButton#misc#set_sensitive true;
+ item
+
+ (** notebook RATIONALE
+ *
+ * Use only these functions to switch between the tabs
+ *)
+ method private _showList = win#mathOrListNotebook#goto_page 1
+ method private _showMath = win#mathOrListNotebook#goto_page 0
+
+ method private back () =
+ try
+ self#_load (self#_historyPrev ())
+ with MatitaMisc.History_failure -> ()
+
+ method private forward () =
+ try
+ self#_load (self#_historyNext ())
+ with MatitaMisc.History_failure -> ()
+
+ (* loads a uri which can be a cic uri or an about:* uri
+ * @param uri string *)
+ method private _load entry =
+ try
+ if entry <> current_entry || entry = `About `Current_proof then begin
+ (match entry with
+ | `About `Current_proof -> self#home ()
+ | `About `Blank -> self#blank ()
+ | `About `Us -> () (* TODO implement easter egg here :-] *)
+ | `Check term -> self#_loadCheck term
+ | `Cic (term, metasenv) -> self#_loadTermCic term metasenv
+ | `Dir dir -> self#_loadDir dir
+ | `Uri uri -> self#_loadUriManagerUri (UriManager.uri_of_string uri)
+ | `Whelp (query, results) ->
+ set_whelp_query query;
+ self#_loadList (List.map (fun r -> "obj", r) results));
+ self#setEntry entry
+ end
+ with
+ | UriManager.IllFormedUri uri -> fail (sprintf "invalid uri: %s" uri)
+ | CicEnvironment.Object_not_found uri ->
+ fail (sprintf "object not found: %s" (UriManager.string_of_uri uri))
+ | Browser_failure msg -> fail msg
+
+ method private blank () =
+ self#_showMath;
+ mathView#load_root (MatitaMisc.empty_mathml ())#get_documentElement
+
+ method private _loadCheck term =
+ failwith "not implemented _loadCheck";
+ self#_showMath
+
+ method private home () =
+ self#_showMath;
+ match self#script#status.proof_status with
+ | Proof (uri, metasenv, bo, ty) ->
+ let name = UriManager.name_of_uri (MatitaMisc.unopt uri) in
+ let obj = Cic.CurrentProof (name, metasenv, bo, ty, [], []) in
+ self#_loadObj obj
+ | Incomplete_proof ((uri, metasenv, bo, ty), _) ->
+ let name = UriManager.name_of_uri (MatitaMisc.unopt uri) in
+ let obj = Cic.CurrentProof (name, metasenv, bo, ty, [], []) in
+ self#_loadObj obj
+ | _ -> self#blank ()
+
+ (** loads a cic uri from the environment
+ * @param uri UriManager.uri *)
+ method private _loadUriManagerUri uri =
+ let uri = UriManager.strip_xpointer uri in
+ let (obj, _) = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
+ self#_loadObj obj
+
+ method private _loadDir dir =
+ let content = Http_getter.ls dir in
+ let l =
+ List.map
+ (function
+ | Http_getter_types.Ls_section s -> "dir", s
+ | Http_getter_types.Ls_object o -> "obj", o.Http_getter_types.uri)
+ content
+ in
+ if l = [] then raise (Browser_failure "no such directory");
+ self#_loadList l
+
+ method private setEntry entry =
+ win#browserUri#entry#set_text (string_of_entry entry);
+ current_entry <- entry
+
+ method private _loadObj obj =
+ self#_showMath;
+ (* this must be _before_ loading the document, since
+ * if the widget is not mapped (hidden by the notebook)
+ * the document is not rendered *)
+ let use_diff = false in (* ZACK TODO use XmlDiff when re-rendering? *)
+ let (mathml, (_,(ids_to_terms, ids_to_father_ids, ids_to_conjectures,
+ ids_to_hypotheses,_,_))) =
+ ApplyTransformation.mml_of_cic_object obj
+ in
+ current_infos <- Some (ids_to_terms, ids_to_father_ids,
+ ids_to_conjectures, ids_to_hypotheses);
+ (match current_mathml with
+ | Some current_mathml when use_diff ->
+ mathView#freeze;
+ XmlDiff.update_dom ~from:current_mathml mathml;
+ mathView#thaw
+ | _ ->
+ mathView#load_root ~root:mathml#get_documentElement;
+ current_mathml <- Some mathml);
+
+ method private _loadTermCic term metasenv =
+ let context = self#script#proofContext in
+ let dummyno = CicMkImplicit.new_meta metasenv [] in
+ let sequent = (dummyno, context, term) in
+ mathView#load_sequent (sequent :: metasenv) dummyno;
+ self#_showMath
+
+ method private _loadList l =
+ model#list_store#clear ();
+ List.iter (fun (tag, s) -> model#easy_append ~tag s) l;
+ self#_showList
+
+ (** { public methods, all must call _load!! } *)
+
+ method load entry =
+ handle_error (fun () -> self#_load entry; self#_historyAdd entry)
+
+ (** this is what the browser does when you enter a string an hit enter *)
+ method loadInput txt =
+ let txt = strip_blanks txt in
+ let fix_uri txt =
+ UriManager.string_of_uri
+ (UriManager.strip_xpointer (UriManager.uri_of_string txt))
+ in
+ if is_whelp txt then begin
+ set_whelp_query txt;
+ (MatitaScript.instance ())#advance ~statement:(txt ^ ".") ()
+ end else begin
+ let entry =
+ match txt with
+ | txt when is_uri txt -> `Uri (fix_uri txt)
+ | txt when is_dir txt -> `Dir (add_trailing_slash txt)
+ | txt ->
+ (try
+ entry_of_string txt
+ with Invalid_argument _ ->
+ raise (Browser_failure (sprintf "unsupported uri: %s" txt)))