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. 35 * 36 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 37 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 38 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 39 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 42 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 43 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 44 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 45 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 46 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 47 * SUCH DAMAGE. 48 * ==================================================================== 49 * 50 * This software consists of voluntary contributions made by many 51 * individuals on behalf of the Apache Software Foundation. For more 52 * information on the Apache Software Foundation, please see 53 * <http://www.apache.org/>. 54 */ 55 56 /* 57 * IntPtg.java 58 * 59 * Created on October 29, 2001, 7:37 PM 60 */ 61 package org.apache.poi.hssf.record.formula; 62 63 import org.apache.poi.util.LittleEndian; 64 65 /** 66 * Integer (short intger) 67 * Stores a (java) short value in a formula 68 * @author andy 69 */ 70 71 public class IntPtg 72 extends Ptg 73 { 74 public final static int SIZE = 3; 75 public final static byte sid = 0x1e; 76 private short field_1_value; 77 78 private String val; 79 private int strlen = 0; 80 /** Creates new IntPtg */ 81 82 public IntPtg() 83 { 84 } 85 86 public IntPtg(byte [] data, int offset) 87 { 88 setValue(LittleEndian.getShort(data, offset + 1)); 89 } 90 91 protected IntPtg(String formula, int offset) { 92 val = parseString(formula, offset); 93 if (val == null) throw new RuntimeException("WHOOAA there...thats got no int!"); 94 strlen=val.length(); 95 field_1_value = Short.parseShort(val); 96 } 97 98 99 public void setValue(short value) 100 { 101 field_1_value = value; 102 } 103 104 public short getValue() 105 { 106 return field_1_value; 107 } 108 109 public void writeBytes(byte [] array, int offset) 110 { 111 array[ offset + 0 ] = sid; 112 LittleEndian.putShort(array, offset + 1, getValue()); 113 } 114 115 public int getSize() 116 { 117 return SIZE; 118 } 119 120 public String toFormulaString() 121 { 122 return "" + getValue(); 123 } 124 125 private static String parseString(String formula, int pos) { 126 String retval = null; 127 while (pos < formula.length() && Character.isWhitespace(formula.charAt(pos))) { 128 pos++; 129 } 130 131 if (pos < formula.length()) { 132 if (Character.isDigit(formula.charAt(pos)) ) { 133 int numpos = pos; 134 135 while (numpos < formula.length() && Character.isDigit(formula.charAt(numpos))){ 136 numpos++; 137 } 138 139 if (numpos == formula.length() || formula.charAt(numpos) != '.') { 140 String numberstr = formula.substring(pos,numpos); 141 try { 142 int number = Short.parseShort(numberstr); 143 retval = numberstr; 144 } catch (NumberFormatException e) { 145 retval = null; 146 } 147 } 148 } 149 } 150 return retval; 151 152 } 153 154 public static boolean isNextStringToken(String formula, int pos) { 155 return (parseString(formula,pos) != null); 156 } 157 158 public int getPrecedence() { 159 return 5; 160 } 161 162 public int getStringLength() { 163 return strlen; 164 } 165 } 166