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1   /*
2    * Copyright (C) 2006 uguu@users.sourceforge.jp, All Rights Reserved.
3    *
4    * Redistribution and use in source and binary forms, with or without
5    * modification, are permitted provided that the following conditions
6    * are met:
7    *
8    *    1. Redistributions of source code must retain the above copyright
9    *       notice, this list of conditions and the following disclaimer.
10   *
11   *    2. Redistributions in binary form must reproduce the above copyright
12   *       notice, this list of conditions and the following disclaimer in the
13   *       documentation and/or other materials provided with the distribution.
14   *
15   *    3. Neither the name of Clarkware Consulting, Inc. nor the names of its
16   *       contributors may be used to endorse or promote products derived
17   *       from this software without prior written permission. For written
18   *       permission, please contact clarkware@clarkware.com.
19   *
20   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
21   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
22   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
23   * CLARKWARE CONSULTING OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
26   * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28   * NEGLIGENCE OR OTHERWISE) ARISING IN  ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29   * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30   */
31  
32  package jp.sourceforge.rpn_computer.node;
33  
34  import jp.sourceforge.rpn_computer.ParseException;
35  import jp.sourceforge.rpn_computer.RpnCompileContext;
36  import jp.sourceforge.rpn_computer.command.SurplusCommand;
37  import jp.sourceforge.rpn_computer.token.PercentToken;
38  import jp.sourceforge.rpn_computer.token.PercentTokenInfo;
39  import jp.sourceforge.tokenizer.Token;
40  import jp.sourceforge.tokenizer.TokenInfo;
41  import jp.sourceforge.tokenizer.Tokenizer;
42  
43  /**
44   * <p>
45   * 二項剰余演算子を表すノードです。
46   * </p>
47   * 
48   * @author uguu@users.sourceforge.jp
49   */
50  public final class SurplusNode extends AbstractNode {
51  
52      /**
53       * {@inheritDoc}
54       */
55      public void parse(Tokenizer tokenizer) {
56          Token token = tokenizer.current();
57          if (!(token instanceof PercentToken)) {
58              throw new ParseException(token, new TokenInfo[] { new PercentTokenInfo() });
59          }
60      }
61  
62      /**
63       * {@inheritDoc}
64       */
65      public String toString() {
66          return "surplus[%]";
67      }
68  
69      /**
70       * 
71       * {@inheritDoc}
72       */
73      public void compile(RpnCompileContext context) {
74          context.add(new SurplusCommand());
75      }
76  }