From efea8f34e71084fcc6e7791e4927f2f7f8d3f1af Mon Sep 17 00:00:00 2001
From: Enrico Tassi <enrico.tassi@inria.fr>
Date: Mon, 13 Oct 2008 15:51:11 +0000
Subject: [PATCH 1/1] ppmetasenv & subst added

---
 helm/software/components/ng_kernel/nCicPp.ml  | 47 +++++++++++++++----
 helm/software/components/ng_kernel/nCicPp.mli |  6 +++
 2 files changed, 45 insertions(+), 8 deletions(-)

diff --git a/helm/software/components/ng_kernel/nCicPp.ml b/helm/software/components/ng_kernel/nCicPp.ml
index 73c3f572c..cde028be4 100644
--- a/helm/software/components/ng_kernel/nCicPp.ml
+++ b/helm/software/components/ng_kernel/nCicPp.ml
@@ -52,7 +52,8 @@ let ppterm ~context ~subst ~metasenv:_ ?(inside_fix=false) t =
          (try 
             let name = List.nth ctx (m-1) in
             F.fprintf f "%s" (if name = "_" then "__"^string_of_int m else name)
-         with Failure _ -> F.fprintf f " -%d" (m - List.length ctx))
+         with Failure "nth" | Invalid_argument "List.nth" -> 
+             F.fprintf f " -%d" (m - List.length ctx))
    | C.Const r -> F.fprintf f "%s" (r2s inside_fix r)
    | C.Prod ("_",s,t) -> 
        if not toplevel then F.fprintf f "(";
@@ -130,8 +131,9 @@ let ppterm ~context ~subst ~metasenv:_ ?(inside_fix=false) t =
         F.fprintf f "?%d(%d,[" n shift;
         if List.length l > 0 then
           begin 
-            aux ctx (List.hd l);
-            List.iter (fun x -> F.fprintf f ",";aux ctx x) (List.tl l);
+            aux ctx (NCicSubstitution.lift shift (List.hd l));
+            List.iter (fun x -> F.fprintf f ",";aux ctx x) 
+             (List.map (NCicSubstitution.lift shift) (List.tl l));
           end;
         F.fprintf f "])"
    | C.Sort C.Prop -> F.fprintf f "Prop"
@@ -180,13 +182,42 @@ let ppobj = function
           ppterm ~metasenv ~subst ~context:[] bo ^ "\n"
 ;;
 
-let rec ppcontext ~subst ~metasenv = function
+let rec ppcontext ?(sep="\n") ~subst ~metasenv = function
   | [] -> ""
   | (name, NCic.Decl t) :: tl -> 
-      ppcontext ~subst ~metasenv tl ^
-      name ^ ": " ^ ppterm ~subst ~metasenv ~context:tl t ^ "\n"
+      ppcontext ~sep ~subst ~metasenv tl ^
+      name ^ ": " ^ ppterm ~subst ~metasenv ~context:tl t ^ sep
   | (name, NCic.Def (bo,ty)) :: tl->
-      ppcontext ~subst ~metasenv tl ^
+      ppcontext ~sep ~subst ~metasenv tl ^
       name ^ ": " ^ ppterm ~subst ~metasenv ~context:tl ty ^ 
-      " := " ^ ppterm ~subst ~metasenv ~context:tl bo ^ "\n"
+      " := " ^ ppterm ~subst ~metasenv ~context:tl bo ^ sep
 ;;
+
+let rec ppmetasenv ~subst metasenv = function
+  | [] -> ""
+  | (i,(name, ctx, ty)) :: tl ->
+      let name = match name with Some n -> "("^n^")" | _ -> "" in
+      ppcontext ~sep:"; " ~subst ~metasenv ctx ^
+      " ⊢ ?"^string_of_int i^name^" : " ^ 
+      ppterm ~metasenv ~subst ~context:ctx ty ^ "\n" ^
+      ppmetasenv ~subst metasenv tl
+;;
+
+let ppmetasenv ~subst metasenv = ppmetasenv ~subst metasenv metasenv;;
+
+let rec ppsubst ~subst ~metasenv = function
+  | [] -> ""
+  | (i,(name, ctx, t, ty)) :: tl ->
+      
+      let name = match name with Some n -> "("^n^")" | _ -> "" in
+      ppcontext ~sep:"; " ~subst ~metasenv ctx ^
+      " ⊢ ?"^string_of_int i^name^" := " ^ 
+      ppterm ~metasenv ~subst ~context:ctx t ^ " : " ^
+      ppterm ~metasenv ~subst ~context:ctx ty ^ "\n" ^
+      ppsubst ~subst ~metasenv tl
+;;
+
+let ppsubst ~metasenv subst = ppsubst ~metasenv ~subst subst;;
+
+let _ = NCicSubstitution.set_ppterm ppterm;;
+
diff --git a/helm/software/components/ng_kernel/nCicPp.mli b/helm/software/components/ng_kernel/nCicPp.mli
index 1654cdfb2..507f38d16 100644
--- a/helm/software/components/ng_kernel/nCicPp.mli
+++ b/helm/software/components/ng_kernel/nCicPp.mli
@@ -19,8 +19,14 @@ val ppterm:
    NCic.term -> string
 
 val ppcontext:
+  ?sep:string ->
   subst:NCic.substitution -> 
   metasenv:NCic.metasenv ->
   NCic.context -> string 
 
+val ppmetasenv:
+  subst:NCic.substitution -> NCic.metasenv -> string
+
+val ppsubst: metasenv:NCic.metasenv -> NCic.substitution -> string
+
 val ppobj: NCic.obj -> string
-- 
2.39.2