/*
** Copyright (c) 2007, Paul Cager
** All rights reserved.
** 
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are met:
** 
**    * Redistributions of source code must retain the above copyright notice,
**      this list of conditions and the following disclaimer.
**    * Redistributions in binary form must reproduce the above copyright
**      notice, this list of conditions and the following disclaimer in the
**      documentation and/or other materials provided with the distribution.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
** ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
** LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
** INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
** CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
** THE POSSIBILITY OF SUCH DAMAGE.
*/

options { STATIC=false; OUTPUT_DIRECTORY="out-dir"; }

PARSER_BEGIN(Tree)

/**
 *  Test the creation / modification of Java Files (Token.java etc).
**/
public class Tree {

  public static void main(String args[]) throws Exception {
    Tree t = new Tree(System.in);
    t.CompilationUnit();
    System.out.println("Parser ran sucessfully");
  }

}

PARSER_END(Tree)

TOKEN :
{
  < A: "A">
| < B: "B">
| < C: "C">
| < D: "D">
}

void CompilationUnit() : {}
{
	("A" | "B" )*
	<EOF>
}
