added HBugs interface module for gTopLevel

diff --git a/helm/gTopLevel/hbugs.ml b/helm/gTopLevel/hbugs.ml
new file mode 100644 (file)
index 0000000..0d71d94
--- /dev/null
+++ b/helm/gTopLevel/hbugs.ml
@@ -0,0 +1,134 @@
+(*
+ * Copyright (C) 2003:
+ *    Stefano Zacchiroli <zack@cs.unibo.it>
+ *    for the HELM Team http://helm.cs.unibo.it/
+ *
+ *  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://helm.cs.unibo.it/
+ *)
+
+open Hbugs_types;;
+open Printf;;
+
+let debug_print = 
+  let debug = true in
+  fun s -> prerr_endline (sprintf "DEBUG: %s" s)
+;;
+
+exception NoProofInProgress;;
+
+module type HbugsActions =
+  sig
+    val enable: unit -> unit
+    val disable: unit -> unit
+    val toggle: bool -> unit
+
+    val quit: unit -> unit
+
+    val notify: unit -> unit
+  end
+
+module Make (Tactics: InvokeTactics.Tactics) : HbugsActions =
+  struct
+    let hbugs_client = ref None
+
+    let quit () =
+      match !hbugs_client with
+      | Some c -> c#unregisterFromBroker ()
+      | None -> ()
+
+    let hbugs_enabled = ref false
+
+    let get_hbugs_client () =
+      match !hbugs_client with
+      | Some c -> c
+      | None -> assert false
+
+    let disable () =
+      match !hbugs_client with None -> () | Some c -> c#hide ()
+
+      (** send current proof assistant state to hbugs broker *)
+    let notify () =
+      try
+        if !hbugs_enabled then begin
+          let client = get_hbugs_client () in
+          let goal =
+            match !ProofEngine.goal with
+            | Some g -> g
+            | None -> raise NoProofInProgress
+          in
+          let (type_string, body_string) =
+            let (type_xml, body_xml) = ProofEngine.get_current_status_as_xml () in
+            (Xml.pp_to_string type_xml, Xml.pp_to_string body_xml)
+          in
+          let new_state =
+            (Misc.strip_xml_headings type_string,
+             Misc.strip_xml_headings body_string,
+             goal)
+          in
+          client#stateChange new_state
+        end
+      with NoProofInProgress -> ()
+
+    let use_hint = function
+      | Use_ring_Luke -> Tactics.ring ()
+      | Use_fourier_Luke -> Tactics.fourier ()
+      | Use_reflexivity_Luke -> Tactics.reflexivity ()
+      | Use_symmetry_Luke -> Tactics.symmetry ()
+      | Use_assumption_Luke -> Tactics.assumption ()
+      | Use_contradiction_Luke -> Tactics.contradiction ()
+      | Use_exists_Luke -> Tactics.exists ()
+      | Use_split_Luke -> Tactics.split ()
+      | Use_left_Luke -> Tactics.left ()
+      | Use_right_Luke -> Tactics.right ()
+      | Use_apply_Luke term -> Tactics.apply ~term ()
+      | Hints _ -> assert false
+
+    let rec enable () =
+      (match !hbugs_client with
+      | None -> (* create an hbugs client and show its window *)
+          hbugs_client :=
+            (try
+              Some
+                (new Hbugs_client.hbugsClient
+                  ~on_use_hint: use_hint
+                  ~on_exit: ignore  (* TODO disable hbugs on 'on_exit' callback *)
+                  ())
+            with e ->
+              prerr_endline (sprintf "Can't start HBugs client: %s"
+                (Printexc.to_string e));
+              None);
+          (match !hbugs_client with
+          |Some client ->
+              client#show ();
+              client#subscribeAll ()
+          | None -> ())
+      | Some c -> (* show hbugs client window *)
+          c#show ())
+
+    let toggle state =
+      if state <> !hbugs_enabled then (* status has been changed *)
+        (if state then enable () else disable ());
+      hbugs_enabled := state
+
+  end
+

diff --git a/helm/gTopLevel/hbugs.mli b/helm/gTopLevel/hbugs.mli
new file mode 100644 (file)
index 0000000..2982ba0
--- /dev/null
+++ b/helm/gTopLevel/hbugs.mli
@@ -0,0 +1,41 @@
+(*
+ * Copyright (C) 2003:
+ *    Stefano Zacchiroli <zack@cs.unibo.it>
+ *    for the HELM Team http://helm.cs.unibo.it/
+ *
+ *  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://helm.cs.unibo.it/
+ *)
+
+module type HbugsActions =
+  sig
+    val enable: unit -> unit
+    val disable: unit -> unit
+    val toggle: bool -> unit
+
+    val quit: unit -> unit
+
+    val notify: unit -> unit
+  end
+
+module Make (Tactics: InvokeTactics.Tactics) : HbugsActions
+