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(*                                                                        *)
(*  Menhir                                                                *)
(*                                                                        *)
(*  François Pottier and Yann Régis-Gianas, INRIA Rocquencourt            *)
(*                                                                        *)
(*  Copyright 2005 Institut National de Recherche en Informatique et      *)
(*  en Automatique. All rights reserved. This file is distributed         *)
(*  under the terms of the Q Public License version 1.0, with the         *)
(*  change described in file LICENSE.                                     *)
(*                                                                        *)
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(* This module drives the first half of the front-end. It opens and
   parses the input files, which yields a number of partial
   grammars. It joins these grammars, expands them to get rid of
   parameterized nonterminals, and performs reachability
   analysis. This yields a single unified grammar.

   More transformations over this grammar are performed in the second
   half of the front-end, which is driven by [Front]. The modules
   [PreFront] and [Front] are separated because it is convenient to
   insert auxiliary modules, such as [TokenType] and [Infer], in
   between the two.  *)

val grammar: UnparameterizedSyntax.grammar