Merge PR #8064: Numeral notation (revisited again)

1 files changed, 37 insertions, 0 deletions

diff --git a/plugins/syntax/g_numeral.ml4 b/plugins/syntax/g_numeral.ml4
new file mode 100644
index 0000000000..ec14df3baa
--- /dev/null
+++ b/plugins/syntax/g_numeral.ml4
@@ -0,0 +1,37 @@
+(************************************************************************)
+(*         *   The Coq Proof Assistant / The Coq Development Team       *)
+(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
+(* <O___,, *       (see CREDITS file for the list of authors)           *)
+(*   \VV/  **************************************************************)
+(*    //   *    This file is distributed under the terms of the         *)
+(*         *     GNU Lesser General Public License Version 2.1          *)
+(*         *     (see LICENSE file for the text of the license)         *)
+(************************************************************************)
+
+DECLARE PLUGIN "numeral_notation_plugin"
+
+open Numeral
+open Pp
+open Names
+open Vernacinterp
+open Ltac_plugin
+open Stdarg
+open Pcoq.Prim
+
+let pr_numnot_option _ _ _ = function
+  | Nop -> mt ()
+  | Warning n -> str "(warning after " ++ str n ++ str ")"
+  | Abstract n -> str "(abstract after " ++ str n ++ str ")"
+
+ARGUMENT EXTEND numnotoption
+  PRINTED BY pr_numnot_option
+| [ ] -> [ Nop ]
+| [ "(" "warning" "after" bigint(waft) ")" ] -> [ Warning waft ]
+| [ "(" "abstract" "after" bigint(n) ")" ] -> [ Abstract n ]
+END
+
+VERNAC COMMAND EXTEND NumeralNotation CLASSIFIED AS SIDEFF
+  | [ "Numeral" "Notation" reference(ty) reference(f) reference(g) ":"
+      ident(sc) numnotoption(o) ] ->
+    [ vernac_numeral_notation (Locality.make_module_locality atts.locality) ty f g (Id.to_string sc) o ]
+END