X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_tactics%2FnTacStatus.ml;h=eeca351c228f01462ce591e70569109d7c2642c4;hb=7cdfae2ec209750303818f2e39f31e4739286858;hp=86487e20d5cc575dc054ef92b4fad67482e865d1;hpb=174d3dbd5779c2ad602f905d7f4321dc68a53786;p=helm.git

diff --git a/helm/software/components/ng_tactics/nTacStatus.ml b/helm/software/components/ng_tactics/nTacStatus.ml
index 86487e20d..eeca351c2 100644
--- a/helm/software/components/ng_tactics/nTacStatus.ml
+++ b/helm/software/components/ng_tactics/nTacStatus.ml
@@ -99,6 +99,12 @@ let term_of_cic_term s t c =
   s, t
 ;;
 
+let ppterm status t =
+ let uri,height,metasenv,subst,obj = status.pstatus in
+ let _,context,t = t in
+  NCicPp.ppterm ~metasenv ~subst ~context t
+;;
+
 let disambiguate status t ty context =
  let status, expty = 
    match ty with 
@@ -319,3 +325,46 @@ let analyse_indty status ty =
 ;;
 
 let mk_cic_term c t = None,c,t ;;
+
+(* CSC: next two functions to be moved elsewhere *)
+let rec apply_subst subst ctx =
+ function
+    NCic.Meta (i,lc) ->
+     (try
+       let _,_,t,_ = NCicUtils.lookup_subst i subst in
+       let t = NCicSubstitution.subst_meta lc t in
+        apply_subst subst ctx t
+      with
+       Not_found ->
+        match lc with
+           _,NCic.Irl _ -> NCic.Meta (i,lc)
+         | n,NCic.Ctx l ->
+            NCic.Meta
+             (i,(0,NCic.Ctx
+                 (List.map (fun t ->
+                   apply_subst subst ctx (NCicSubstitution.lift n t)) l))))
+  | t -> NCicUtils.map (fun item ctx -> item::ctx) ctx (apply_subst subst) t
+;;
+
+let apply_subst_obj subst =
+ function
+    NCic.Constant (relev,name,bo,ty,attrs) ->
+     NCic.Constant
+      (relev,name,HExtlib.map_option (apply_subst subst []) bo,
+        apply_subst subst [] ty,attrs)
+  | NCic.Fixpoint (ind,fl,attrs) ->
+     let fl =
+      List.map
+       (function (relevance,name,recno,ty,bo) ->
+         relevance,name,recno,apply_subst subst [] ty,apply_subst subst [] bo
+       ) fl
+     in
+      NCic.Fixpoint (ind,fl,attrs)
+  | _ -> assert false (* not implemented yet *)
+;;
+
+let apply_subst status ctx t =
+ let status, (name,_,t) = relocate status ctx t in
+ let _,_,_,subst,_ = status.pstatus in
+  status, (name, ctx, apply_subst subst ctx t)
+;;