[api] [parsing] Move Egram* to `vernac/`

The extension mechanism is specific to metasyntax and vernacinterp,
thus it makes sense to place them next to each other.

We also fix the META entry for the `grammar` camlp5 plugin.

1 files changed, 33 insertions, 0 deletions

diff --git a/vernac/egramml.mli b/vernac/egramml.mli
new file mode 100644
index 000000000..31aa1a989
--- /dev/null
+++ b/vernac/egramml.mli
@@ -0,0 +1,33 @@
+(************************************************************************)
+(*         *   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)         *)
+(************************************************************************)
+
+open Vernacexpr
+
+(** Mapping of grammar productions to camlp5 actions. *)
+
+(** This is the part specific to vernac extensions.
+    For the Coq-level Notation and Tactic Notation, see Egramcoq. *)
+
+type 's grammar_prod_item =
+  | GramTerminal of string
+  | GramNonTerminal : ('a Genarg.raw_abstract_argument_type option *
+      ('s, 'a) Extend.symbol) Loc.located -> 's grammar_prod_item
+
+val extend_vernac_command_grammar :
+  Vernacexpr.extend_name -> vernac_expr Pcoq.Gram.entry option ->
+    vernac_expr grammar_prod_item list -> unit
+
+val get_extend_vernac_rule : Vernacexpr.extend_name -> vernac_expr grammar_prod_item list
+
+(** Utility function reused in Egramcoq : *)
+
+val make_rule :
+  (Loc.t -> Genarg.raw_generic_argument list -> 'a) ->
+  'a grammar_prod_item list -> 'a Extend.production_rule