new tacticals

[helm.git] / helm / matita / matitaMisc.ml

diff --git a/helm/matita/matitaMisc.ml b/helm/matita/matitaMisc.ml
index 8f97b25a9384b9f77f8ec1b7f0aab49893f7526d..17473f38b3826029c62674fa7e8a6e23371ab928 100644 (file)
--- a/helm/matita/matitaMisc.ml
+++ b/helm/matita/matitaMisc.ml
@@ -115,13 +115,16 @@ let append_phrase_sep s =
   else
     s
 
-let empty_mathml () =
+let empty_mathml = lazy (
   DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.mathml_ns)
-    ~qualifiedName:(Gdome.domString "math") ~doctype:None
+    ~qualifiedName:(Gdome.domString "math") ~doctype:None)
 
-let empty_boxml () =
+let empty_boxml = lazy (
   DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.boxml_ns) 
-    ~qualifiedName:(Gdome.domString "box") ~doctype:None
+    ~qualifiedName:(Gdome.domString "box") ~doctype:None)
+
+let closed_goal_mathml = lazy (
+  DomMisc.domImpl#createDocumentFromURI ~uri:BuildTimeConf.closed_xml ())
 
 exception History_failure
 
@@ -217,31 +220,47 @@ let singleton f =
   let instance = lazy (f ()) in
   fun () -> Lazy.force instance
 
-let get_proof_status status =
+let get_current_proof status =
   match status.proof_status with
-  | Incomplete_proof s -> s
+  | Incomplete_proof { proof = p } -> p
   | _ -> statement_error "no ongoing proof"
 
 let get_proof_metasenv status =
   match status.proof_status with
   | No_proof -> []
-  | Incomplete_proof ((_, metasenv, _, _), _) -> metasenv
-  | Proof (_, metasenv, _, _) -> metasenv
-  | Intermediate m -> m
+  | Proof (_, metasenv, _, _)
+  | Incomplete_proof { proof = (_, metasenv, _, _) }
+  | Intermediate metasenv ->
+      metasenv
 
-let get_proof_context status =
+let get_proof_context status goal =
   match status.proof_status with
-  | Incomplete_proof ((_, metasenv, _, _), goal) ->
+  | Incomplete_proof { proof = (_, metasenv, _, _) } ->
       let (_, context, _) = CicUtil.lookup_meta goal metasenv in
       context
   | _ -> []
  
-let get_proof_conclusion status =
+let get_proof_conclusion status goal =
   match status.proof_status with
-  | Incomplete_proof ((_, metasenv, _, _), goal) ->
+  | Incomplete_proof { proof = (_, metasenv, _, _) } ->
       let (_, _, conclusion) = CicUtil.lookup_meta goal metasenv in
       conclusion
   | _ -> statement_error "no ongoing proof"
+
+let get_stack status =
+  match status.proof_status with
+  | Incomplete_proof p -> p.stack
+  | Proof _ -> Continuationals.Stack.empty
+  | _ -> assert false
+
+let set_stack stack status =
+  match status.proof_status with
+  | Incomplete_proof p ->
+      { status with proof_status = Incomplete_proof { p with stack = stack } }
+  | Proof _ ->
+      assert (Continuationals.Stack.is_empty stack);
+      status
+  | _ -> assert false
  
 let qualify status name = get_string_option status "baseuri" ^ "/" ^ name