From 97fefe1fcca363a1317e066e7f4b99b9c1e9987b Mon Sep 17 00:00:00 2001
From: Stephane Glondu <steph@glondu.net>
Date: Thu, 12 Jan 2012 16:02:20 +0100
Subject: Imported Upstream version 8.4~beta

---
 tools/compat5b.mlp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 tools/compat5b.mlp

(limited to 'tools/compat5b.mlp')

diff --git a/tools/compat5b.mlp b/tools/compat5b.mlp
new file mode 100644
index 00000000..cf8e5494
--- /dev/null
+++ b/tools/compat5b.mlp
@@ -0,0 +1,23 @@
+(************************************************************************)
+(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
+(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010     *)
+(*   \VV/  **************************************************************)
+(*    //   *      This file is distributed under the terms of the       *)
+(*         *       GNU Lesser General Public License Version 2.1        *)
+(************************************************************************)
+
+(** Adding a bit of camlp5 syntax to camlp4 for compatibility:
+    - EXTEND ... becomes EXTEND Gram ...
+*)
+
+open Camlp4.PreCast
+
+let rec my_token_filter = parser
+  | [< '(KEYWORD "EXTEND",_ as t); s >] ->
+    [< 't; '(UIDENT "Gram", Loc.ghost); my_token_filter s >]
+  | [< 'tokloc; s >] -> [< 'tokloc; my_token_filter s >]
+  | [< >] -> [< >]
+
+let _ =
+  Token.Filter.define_filter (Gram.get_filter())
+    (fun prev strm -> prev (my_token_filter strm))
-- 
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