(***********************************************************************)
(*  v      *   The Coq Proof Assistant  /  The Coq Development Team    *)
(* <O___,, *        INRIA-Rocquencourt  &  LRI-CNRS-Orsay              *)
(*   \VV/  *************************************************************)
(*    //   *      This file is distributed under the terms of the      *)
(*         *       GNU Lesser General Public License Version 2.1       *)
(***********************************************************************)

Grammar vernac vernac : ast :=
  extr_constr [ "Extraction" constrarg($c) "." ] -> 
              [ (Extraction $c) ]
| extr_list   [ "Recursive" "Extraction" ne_qualidarg_list($l) "." ] ->
              [ (ExtractionRec ($LIST $l)) ]
| extr_list   
     [ "Extraction" stringarg($f) options($o) ne_qualidarg_list($l) "." ] 
  -> [ (ExtractionFile $o $f ($LIST $l)) ]
| extr_module 
     [ "Extraction" "Module" options($o) identarg($m) "." ]
  -> [ (ExtractionModule $o $m) ]

| extract_constant 
     [ "Extract" "Constant" qualidarg($x) "=>" idorstring($y) "." ]
  -> [ (EXTRACT_CONSTANT $x $y) ]

| extract_inductive 
     [ "Extract" "Inductive" qualidarg($x) "=>" mindnames($y) "."]
  -> [ (EXTRACT_INDUCTIVE $x $y) ]

with mindnames : ast :=
  mlconstr [ idorstring($id) "[" idorstring_list($idl) "]" ]
        -> [(VERNACARGLIST $id ($LIST $idl))]

with idorstring_list: List :=
  ids_nil  [ ] -> [ ]
| ids_cons [ idorstring($x) idorstring_list($l) ] -> [ $x ($LIST $l) ]

with idorstring : ast :=
  ids_ident  [ identarg($id) ] -> [ $id ]
| ids_string [ stringarg($s) ] -> [ $s ]

with options : ast :=
| ext_opt_noopt [ "[" "noopt" "]" ] -> [ (VERNACARGLIST "noopt") ]
| ext_op_expand [ "[" "expand" ne_qualidarg_list($l) "]" ] -> 
                [ (VERNACARGLIST "expand" ($LIST $l)) ]
| ext_opt_none  [ ] -> [ (VERNACARGLIST "nooption") ].