1    
2    /* ====================================================================
3     * The Apache Software License, Version 1.1
4     *
5     * Copyright (c) 2002 The Apache Software Foundation.  All rights
6     * reserved.
7     *
8     * Redistribution and use in source and binary forms, with or without
9     * modification, are permitted provided that the following conditions
10    * are met:
11    *
12    * 1. Redistributions of source code must retain the above copyright
13    *    notice, this list of conditions and the following disclaimer.
14    *
15    * 2. Redistributions in binary form must reproduce the above copyright
16    *    notice, this list of conditions and the following disclaimer in
17    *    the documentation and/or other materials provided with the
18    *    distribution.
19    *
20    * 3. The end-user documentation included with the redistribution,
21    *    if any, must include the following acknowledgment:
22    *       "This product includes software developed by the
23    *        Apache Software Foundation (http://www.apache.org/)."
24    *    Alternately, this acknowledgment may appear in the software itself,
25    *    if and wherever such third-party acknowledgments normally appear.
26    *
27    * 4. The names "Apache" and "Apache Software Foundation" and
28    *    "Apache POI" must not be used to endorse or promote products
29    *    derived from this software without prior written permission. For
30    *    written permission, please contact apache@apache.org.
31    *
32    * 5. Products derived from this software may not be called "Apache",
33    *    "Apache POI", nor may "Apache" appear in their name, without
34    *    prior written permission of the Apache Software Foundation.
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36    * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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38    * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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46    * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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49    *
50    * This software consists of voluntary contributions made by many
51    * individuals on behalf of the Apache Software Foundation.  For more
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53    * <http://www.apache.org/>.
54    */
55   
56   /*
57    * AddPtg.java
58    *
59    * Created on October 29, 2001, 7:48 PM
60    */
61   package org.apache.poi.hssf.record.formula;
62   
63   /**
64    *
65    * @author  andy
66    */
67   
68   public class AddPtg
69       extends Ptg
70       implements OperationPtg
71   {
72       public final static int  SIZE = 1;
73       public final static byte sid  = 0x03;
74       
75       private final static String ADD = "+";
76   
77       /** Creates new AddPtg */
78   
79       public AddPtg()
80       {
81       }
82   
83       public AddPtg(byte [] data, int offset)
84       {
85   
86           // doesn't need anything
87       }
88       
89       protected AddPtg(String formula, int offset) {
90           
91       }
92   
93       public void writeBytes(byte [] array, int offset)
94       {
95           array[ offset + 0 ] = sid;
96       }
97   
98       public int getSize()
99       {
100          return SIZE;
101      }
102  
103      public int getType()
104      {
105          return TYPE_BINARY;
106      }
107  
108      public int getNumberOfOperands()
109      {
110          return 2;
111      }
112  
113      public String toFormulaString()
114      {
115          return "+";
116      }
117      
118      
119      public static boolean isNextStringToken(String formula, int pos) {
120          boolean retval = false;
121          while (pos < formula.length() && Character.isWhitespace(formula.charAt(pos))) {
122              pos++;
123          }
124          
125          if (pos < formula.length()) {
126              if (formula.charAt(pos) == ADD.toCharArray()[0]) {
127                  retval = true;
128              }
129          }
130          return retval;
131      }
132  
133      public String toFormulaString(Ptg [] operands)
134      {
135          StringBuffer buffer = new StringBuffer();
136  
137          buffer.append(operands[ 0 ].toFormulaString());
138          buffer.append("+");
139          buffer.append(operands[ 1 ].toFormulaString());
140          return buffer.toString();
141      }
142      
143      public int getPrecedence() {
144          return 5;
145      }
146      
147      public int getStringLength() {
148          return 1;
149      }
150  }
151