1/*
2 * Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.java_cup.internal.runtime;
27
28/**
29 * Defines the Scanner interface, which CUP uses in the default
30 * implementation of <code>lr_parser.scan()</code>.  Integration
31 * of scanners implementing <code>Scanner</code> is facilitated.
32 *
33 * @author David MacMahon <davidm@smartsc.com>
34 */
35
36/* *************************************************
37  Interface Scanner
38
39  Declares the next_token() method that should be
40  implemented by scanners.  This method is typically
41  called by lr_parser.scan().
42 ***************************************************/
43public interface Scanner {
44    public Symbol next_token() throws java.lang.Exception;
45}
46