Sometimes it is useful to be able to print the subst without applying it.

[helm.git] / helm / software / components / ng_kernel / nCicPp.ml

diff --git a/helm/software/components/ng_kernel/nCicPp.ml b/helm/software/components/ng_kernel/nCicPp.ml
index f608acc15109f913c4f92a428a8d0cc5452887e9..1a793b92fde5db51b370c46eac38a5343f188058 100644 (file)
--- a/helm/software/components/ng_kernel/nCicPp.ml
+++ b/helm/software/components/ng_kernel/nCicPp.ml
@@ -180,11 +180,14 @@ let ppterm ~formatter:f ~context ~subst ~metasenv:_ ?(inside_fix=false) t =
 ;;
 
 let on_buffer f t = 
+ try
   let buff = Buffer.create 100 in
   let formatter = F.formatter_of_buffer buff in
   f ~formatter:formatter t;
   F.fprintf formatter "@?";
   Buffer.contents buff
+ with Failure m ->
+  "[[Unprintable: " ^ m ^ "]]"
 ;;
 
 let ppterm ~formatter ~context ~subst ~metasenv ?(margin=80) ?inside_fix t = 
@@ -192,20 +195,25 @@ let ppterm ~formatter ~context ~subst ~metasenv ?(margin=80) ?inside_fix t =
   ppterm ~formatter ~context ~subst ~metasenv ?inside_fix t
 ;;
 
-let rec ppcontext ~formatter ?(sep="\n") ~subst ~metasenv = function
+let rec ppcontext ~formatter ?(sep="; ") ~subst ~metasenv = function
   | [] -> ()
   | (name, NCic.Decl t) :: tl -> 
       ppcontext ~formatter ~sep ~subst ~metasenv tl;
       F.fprintf formatter "%s: " name;
       ppterm ~formatter ~subst ~metasenv ~context:tl t;
-      F.fprintf formatter "%s" sep
+      F.fprintf formatter "%s@;" sep
   | (name, NCic.Def (bo,ty)) :: tl->
       ppcontext ~formatter ~sep ~subst ~metasenv tl;
       F.fprintf formatter "%s: " name;
       ppterm ~formatter ~subst ~metasenv ~context:tl ty;
       F.fprintf formatter " := ";
       ppterm ~formatter ~subst ~metasenv ~context:tl bo;
-      F.fprintf formatter "%s" sep
+      F.fprintf formatter "%s@;" sep
+;;
+let ppcontext ~formatter ?sep ~subst ~metasenv c =
+  F.fprintf formatter "@[<hov>";
+  ppcontext ~formatter ?sep ~subst ~metasenv c;
+  F.fprintf formatter "@]";
 ;;
 
 let ppmetaattrs =
@@ -216,7 +224,9 @@ let ppmetaattrs =
     String.concat ","
      (List.map
        (function
-           `IsSort -> "sort"
+         | `IsTerm -> "term"
+         | `IsType -> "type"
+         | `IsSort -> "sort"
          | `Name n -> "name=" ^ n
          | `InScope -> "in_scope"
          | `OutScope n -> "out_scope:" ^ string_of_int n
@@ -251,8 +261,9 @@ let rec ppsubst ~formatter ~subst ~metasenv = function
       ppsubst ~formatter ~subst ~metasenv tl
 ;;
 
-let ppsubst ~formatter ~metasenv subst =
- ppsubst ~formatter ~metasenv ~subst subst
+let ppsubst ~formatter ~metasenv ?(use_subst=true) subst =
+ let ssubst = if use_subst then subst else [] in
+  ppsubst ~formatter ~metasenv ~subst:ssubst subst
 ;;
 
 let string_of_generated = function
@@ -345,7 +356,9 @@ let ppcontext ?sep ~subst ~metasenv ctx =
 
 let ppmetasenv ~subst metasenv = on_buffer (ppmetasenv ~subst) metasenv;;
 
-let ppsubst ~metasenv subst = on_buffer (ppsubst ~metasenv) subst;;
+let ppsubst ~metasenv ?use_subst subst =
+ on_buffer (ppsubst ~metasenv ?use_subst) subst
+;;
 
 let ppobj obj = on_buffer ppobj obj;;