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Java > Open Source Codes > jxl > biff > formula > Percent


1 /*********************************************************************
2 *
3 * Copyright (C) 2002 Andrew Khan
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 ***************************************************************************/
19
20 package jxl.biff.formula;
21
22 import java.util.Stack JavaDoc;
23
24 import jxl.biff.IntegerHelper;
25
26 /**
27  * A cell reference in a formula
28  */
29 class Percent extends UnaryOperator implements ParsedThing
30 {
31   /**
32    * Constructor
33    */
34   public Percent()
35   {
36   }
37
38   public String JavaDoc getSymbol()
39   {
40     return "%";
41   }
42
43   public void getString(StringBuffer JavaDoc buf)
44   {
45     ParseItem[] operands = getOperands();
46     operands[0].getString(buf);
47     buf.append(getSymbol());
48   }
49
50  
51   /**
52    * Abstract method which gets the token for this operator
53    *
54    * @return the string symbol for this token
55    */
56   Token getToken()
57   {
58     return Token.PERCENT;
59   }
60
61   /**
62    * Gets the precedence for this operator. Operator precedents run from
63    * 1 to 5, one being the highest, 5 being the lowest
64    *
65    * @return the operator precedence
66    */
67   int getPrecedence()
68   {
69     return 5;
70   }
71 }
72
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