1 files changed, 58 insertions, 0 deletions
diff --git a/interp/ppextend.ml b/interp/ppextend.ml
new file mode 100644
index 00000000..29fb7cc7
--- /dev/null
+++ b/interp/ppextend.ml
@@ -0,0 +1,58 @@
+(************************************************************************)
+(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
+(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
+(*   \VV/  **************************************************************)
+(*    //   *      This file is distributed under the terms of the       *)
+(*         *       GNU Lesser General Public License Version 2.1        *)
+(************************************************************************)
+
+(*i $Id: ppextend.ml,v 1.4.2.1 2004/07/16 19:30:22 herbelin Exp $ *)
+
+(*i*)
+open Pp
+open Util
+open Names
+(*i*)
+
+(*s Pretty-print. *)
+
+(* Dealing with precedences *)
+
+type precedence = int
+
+type parenRelation = L | E | Any | Prec of precedence
+
+type tolerability = precedence * parenRelation
+
+type ppbox =
+  | PpHB of int
+  | PpHOVB of int
+  | PpHVB of int
+  | PpVB of int
+  | PpTB
+
+type ppcut =
+  | PpBrk of int * int
+  | PpTbrk of int * int
+  | PpTab
+  | PpFnl
+
+let ppcmd_of_box = function
+  | PpHB n -> h n
+  | PpHOVB n -> hov n
+  | PpHVB n -> hv n
+  | PpVB n -> v n
+  | PpTB   -> t
+
+let ppcmd_of_cut = function
+  | PpTab -> tab ()
+  | PpFnl -> fnl ()
+  | PpBrk(n1,n2) -> brk(n1,n2)
+  | PpTbrk(n1,n2) -> tbrk(n1,n2)
+
+type unparsing = 
+  | UnpMetaVar of int * parenRelation
+  | UnpListMetaVar of int * parenRelation * unparsing list
+  | UnpTerminal of string
+  | UnpBox of ppbox * unparsing list
+  | UnpCut of ppcut