From: Claudio Sacerdoti Coen <claudio.sacerdoticoen@unibo.it>
Date: Fri, 30 Oct 2009 10:17:49 +0000 (+0000)
Subject: Sometimes it is useful to be able to print the subst without applying it.
X-Git-Tag: make_still_working~3222
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=40ebec98f53ac1a9a1e7a462cbf0dd3e3d8d42fd;p=helm.git

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

diff --git a/helm/software/components/ng_kernel/nCicPp.ml b/helm/software/components/ng_kernel/nCicPp.ml
index 6131a7daf..1a793b92f 100644
--- a/helm/software/components/ng_kernel/nCicPp.ml
+++ b/helm/software/components/ng_kernel/nCicPp.ml
@@ -261,8 +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
@@ -355,7 +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;;
 
diff --git a/helm/software/components/ng_kernel/nCicPp.mli b/helm/software/components/ng_kernel/nCicPp.mli
index 3b4cffb6d..a01895678 100644
--- a/helm/software/components/ng_kernel/nCicPp.mli
+++ b/helm/software/components/ng_kernel/nCicPp.mli
@@ -33,7 +33,8 @@ val ppcontext:
 val ppmetasenv:
   subst:NCic.substitution -> NCic.metasenv -> string
 
-val ppsubst: metasenv:NCic.metasenv -> NCic.substitution -> string
+val ppsubst:
+ metasenv:NCic.metasenv -> ?use_subst:bool -> NCic.substitution -> string
 
 val ppobj: NCic.obj -> string