root / tags / v1_0_1_RELEASE / libraries / libIverUtiles / src / com / iver / utiles / StringUtilities.java @ 9531
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1 | 1104 | fjp | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | 149 | fernando | package com.iver.utiles; |
42 | |||
43 | import java.awt.Color; |
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44 | import java.awt.geom.Rectangle2D; |
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45 | import java.util.Iterator; |
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46 | 5657 | jorpiell | import java.util.Random; |
47 | 149 | fernando | import java.util.TreeSet; |
48 | |||
49 | |||
50 | /**
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51 | 169 | fernando | * Clase de utilidad para Strings
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52 | 149 | fernando | *
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53 | * @author Fernando Gonz?lez Cort?s
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54 | */
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55 | public class StringUtilities { |
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56 | /**
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57 | 169 | fernando | * Inserta una string en otra en la posici?n indicada
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58 | 149 | fernando | *
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59 | 169 | fernando | * @param base String donde se inserta
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60 | * @param position posici?n de "base" donde se inserta la String
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61 | * @param injerto String que se inserta en "base"
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62 | 149 | fernando | *
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63 | 169 | fernando | * @return String con la inserci?n hecha
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64 | 149 | fernando | */
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65 | public static String insert(String base, int position, String injerto) { |
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66 | return base.substring(0, position) + injerto + |
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67 | base.substring(position); |
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68 | } |
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69 | |||
70 | /**
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71 | 169 | fernando | * Busca en la cadena si la posici?n se encuentra entre un s?mbolo de
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72 | * apertura y su correspondiente s?mbolo de clausura
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73 | 149 | fernando | *
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74 | 169 | fernando | * @param string Cadena donde se busca
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75 | * @param position posici?n que se est? evaluando
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76 | * @param startSymbol s?mbolo de apertura
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77 | * @param endSymbol s?mbolo de clausura
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78 | 149 | fernando | *
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79 | 169 | fernando | * @return true si la posici?n dada est? entre un s?mbolo de apertura y
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80 | * otro de clausura
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81 | 149 | fernando | */
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82 | public static boolean isBetweenSymbols(String string, int position, |
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83 | String startSymbol, String endSymbol) { |
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84 | TreeSet startSymbolIndexes = new TreeSet(); |
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85 | TreeSet endSymbolIndexes = new TreeSet(); |
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86 | boolean sameSymbolOpen = true; |
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87 | |||
88 | int pos = 0; |
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89 | |||
90 | 169 | fernando | //Itera sobre la cadena almacenando las posiciones de los s?mbolos de apertura hasta posici?n
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91 | 149 | fernando | while ((pos = string.indexOf(startSymbol, pos)) < position) {
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92 | if (pos == -1) { |
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93 | break;
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94 | } |
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95 | |||
96 | startSymbolIndexes.add(new Integer(pos)); |
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97 | pos++; |
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98 | } |
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99 | |||
100 | pos = 0;
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101 | |||
102 | 169 | fernando | //Itera sobre la cadena almacenando las posiciones de los s?mbolos de clausura hasta posici?n
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103 | 149 | fernando | while ((pos = string.indexOf(endSymbol, pos)) < position) {
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104 | if (pos == -1) { |
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105 | break;
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106 | } |
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107 | |||
108 | endSymbolIndexes.add(new Integer(pos)); |
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109 | pos++; |
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110 | } |
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111 | |||
112 | Iterator startIndexesIterator = startSymbolIndexes.iterator();
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113 | Iterator endIndexesIterator = endSymbolIndexes.iterator();
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114 | Integer startIndex = null; |
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115 | Integer endIndex = null; |
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116 | int count = 0; |
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117 | |||
118 | while (startIndexesIterator.hasNext() || endIndexesIterator.hasNext()) {
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119 | if (startIndexesIterator.hasNext()) {
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120 | startIndex = (Integer) startIndexesIterator.next();
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121 | } |
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122 | |||
123 | if (endIndexesIterator.hasNext()) {
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124 | endIndex = (Integer) endIndexesIterator.next();
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125 | } |
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126 | |||
127 | if (startIndex == null) { |
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128 | if (endIndexesIterator.hasNext()) {
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129 | endIndex = (Integer) startIndexesIterator.next();
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130 | } |
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131 | |||
132 | count--; |
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133 | } else if (endIndex == null) { |
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134 | if (startIndexesIterator.hasNext()) {
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135 | startIndex = (Integer) startIndexesIterator.next();
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136 | } |
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137 | |||
138 | count++; |
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139 | } else {
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140 | if (endIndex.intValue() < startIndex.intValue()) {
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141 | if (endIndexesIterator.hasNext()) {
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142 | endIndex = (Integer) startIndexesIterator.next();
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143 | } else {
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144 | endIndex = null;
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145 | } |
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146 | |||
147 | count--; |
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148 | } else {
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149 | if (startIndexesIterator.hasNext()) {
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150 | startIndex = (Integer) startIndexesIterator.next();
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151 | } else {
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152 | startIndex = null;
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153 | } |
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154 | |||
155 | count++; |
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156 | } |
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157 | } |
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158 | } |
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159 | |||
160 | if (count == 0) { |
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161 | return false; |
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162 | } else {
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163 | return true; |
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164 | } |
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165 | } |
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166 | |||
167 | /**
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168 | * Busca en la cadena si la posici?n tiene un n?mero par de symbol delante
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169 | 169 | fernando | * de ella o impar.
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170 | 149 | fernando | *
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171 | 169 | fernando | * @param string Cadena donde se busca
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172 | * @param position posici?n que se est? evaluando
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173 | * @param symbol s?mbolo que se toma para la comprobaci?n
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174 | 149 | fernando | *
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175 | 169 | fernando | * @return true si hay un n?mero impar de s?mbolos delante de la posici?n
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176 | * pos y false en caso contrario
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177 | 149 | fernando | */
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178 | public static boolean isBetweenSymbols(String string, int position, |
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179 | String symbol) {
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180 | int pos = 0; |
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181 | |||
182 | int count = 0; |
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183 | |||
184 | while ((pos = string.indexOf(symbol, pos)) < position) {
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185 | if (pos == -1) { |
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186 | break;
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187 | } |
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188 | |||
189 | count = 1 - count;
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190 | pos++; |
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191 | } |
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192 | |||
193 | if (count == 0) { |
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194 | return false; |
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195 | } else {
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196 | return true; |
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197 | } |
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198 | } |
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199 | |||
200 | /**
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201 | 169 | fernando | * Obtiene una cadena delimitada por s?mbolos
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202 | 149 | fernando | *
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203 | 169 | fernando | * @param string Cadena de la que se obtendr? la subcadena
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204 | * @param symbolSet Conjunto de s?mbolos delimitadores
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205 | * @param position Posici?n a partir de la cual se busca la subcadena
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206 | 149 | fernando | *
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207 | 169 | fernando | * @return Cadena delimitada por cualquier combinaci?n de los s?mbolos
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208 | * definidos en el SimbolSet, o null si no se encuentra ninguna
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209 | 149 | fernando | */
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210 | public static String substringWithSymbols(String string, |
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211 | SymbolSet symbolSet, int position) {
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212 | char[] characters = new char[string.length() - position]; |
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213 | string.getChars(position, string.length(), characters, 0);
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214 | |||
215 | for (int i = position; i < characters.length; i++) { |
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216 | if (symbolSet.contains(characters[i])) {
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217 | char[] buff = new char[string.length() - i]; |
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218 | int j = 0; |
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219 | |||
220 | while (symbolSet.contains(characters[i])) {
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221 | buff[j] = characters[i]; |
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222 | j++; |
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223 | i++; |
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224 | |||
225 | if (i == characters.length) {
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226 | break;
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227 | } |
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228 | } |
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229 | |||
230 | char[] ret = new char[j]; |
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231 | System.arraycopy(buff, 0, ret, 0, j); |
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232 | |||
233 | return new String(ret); |
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234 | } |
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235 | } |
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236 | |||
237 | return null; |
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238 | } |
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239 | |||
240 | /**
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241 | * Encuentra una cadena delimitada por otras dos
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242 | *
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243 | * @param string Cadena en la que se busca
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244 | * @param start Cadena de inicio de la delimitaci?n
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245 | * @param end Cadena de final de la delimitaci?n
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246 | * @param startingPosition Posici?n en la que se empieza a buscar
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247 | *
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248 | * @return String cadena delimitada por start y por end
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249 | */
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250 | public static String substringDelimited(String string, String start, |
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251 | String end, int startingPosition) { |
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252 | int startIndex = string.indexOf(start, startingPosition);
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253 | |||
254 | if (startIndex == -1) { |
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255 | return null; |
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256 | } |
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257 | |||
258 | startIndex += start.length(); |
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259 | |||
260 | int endIndex = string.indexOf(end, startIndex);
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261 | |||
262 | if ((startIndex < endIndex) && (endIndex != -1) && (startIndex != -1)) { |
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263 | return string.substring(startIndex, endIndex);
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264 | } |
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265 | |||
266 | return null; |
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267 | } |
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268 | |||
269 | /**
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270 | 169 | fernando | * Obtiene una rect?ngulo como String
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271 | 149 | fernando | *
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272 | 169 | fernando | * @param rect Rect?ngulo a transformar
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273 | 149 | fernando | *
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274 | 169 | fernando | * @return String
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275 | 149 | fernando | */
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276 | public static String rect2String(Rectangle2D rect) { |
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277 | return rect.getMinX() + "," + rect.getMinY() + "," + rect.getWidth() + |
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278 | "," + rect.getHeight();
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279 | } |
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280 | |||
281 | /**
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282 | 169 | fernando | * Convierte un String en un rect?ngulo. El string ha de haber sido
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283 | * convertida a previamente desde un rectangulo mediante el m?todo
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284 | * rect2String
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285 | 149 | fernando | *
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286 | 169 | fernando | * @param rect String
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287 | 149 | fernando | *
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288 | 169 | fernando | * @return Rectangle2D
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289 | 149 | fernando | */
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290 | public static Rectangle2D string2Rect(String rect) { |
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291 | String[] coords = new String[4]; |
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292 | coords = rect.split(",");
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293 | |||
294 | Rectangle2D.Double ret = new Rectangle2D.Double(new Double(coords[0]).doubleValue(), |
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295 | new Double(coords[1]).doubleValue(), |
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296 | new Double(coords[2]).doubleValue(), |
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297 | new Double(coords[3]).doubleValue()); |
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298 | |||
299 | return ret;
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300 | } |
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301 | |||
302 | /**
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303 | 169 | fernando | * Obtiene la representaci?n de un color como String
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304 | 149 | fernando | *
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305 | 169 | fernando | * @param c Color
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306 | 149 | fernando | *
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307 | 169 | fernando | * @return String
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308 | 149 | fernando | */
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309 | public static String color2String(Color c) { |
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310 | return c.getRed() + "," + c.getGreen() + "," + c.getBlue() + "," + |
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311 | c.getAlpha(); |
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312 | } |
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313 | |||
314 | /**
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315 | 169 | fernando | * Obtiene el color de un string generado con color2String
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316 | 149 | fernando | *
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317 | 169 | fernando | * @param stringColor string
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318 | 149 | fernando | *
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319 | 169 | fernando | * @return Color
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320 | 149 | fernando | */
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321 | public static Color string2Color(String stringColor) { |
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322 | 169 | fernando | String[] ints = new String[4]; |
323 | ints = stringColor.split(",");
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324 | 149 | fernando | |
325 | 169 | fernando | int[] ret = new int[4]; |
326 | 149 | fernando | |
327 | 169 | fernando | for (int i = 0; i < ret.length; i++) { |
328 | ret[i] = new Integer(ints[i]).intValue(); |
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329 | } |
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330 | |||
331 | return new Color(ret[0], ret[1], ret[2], ret[3]); |
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332 | |||
333 | 149 | fernando | /*
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334 | long color = new Long(stringColor).longValue();
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335 | long alpha = color / 16777216;
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336 | color = color % 16777216;
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337 | |||
338 | long red = color / 65536;
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339 | color = color % 65536;
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340 | long green = color / 256;
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341 | color = color % 256;
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342 | long blue = color;
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343 | return new Color(red, green, blue, alpha);*/
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344 | } |
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345 | |||
346 | 169 | fernando | /*
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347 | 149 | fernando | * DOCUMENT ME!
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348 | *
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349 | * @param array DOCUMENT ME!
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350 | *
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351 | * @return DOCUMENT ME!
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352 | 196 | root | */
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353 | 149 | fernando | public static String floatArray2String(float[] array) { |
354 | String aux = "" + array[0]; |
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355 | |||
356 | for (int i = 1; i < array.length; i++) { |
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357 | aux += ("," + array[i]);
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358 | } |
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359 | |||
360 | return aux;
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361 | } |
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362 | |||
363 | /**
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364 | * DOCUMENT ME!
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365 | *
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366 | * @param array DOCUMENT ME!
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367 | *
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368 | * @return DOCUMENT ME!
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369 | 196 | root | */
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370 | 149 | fernando | public static float[] string2FloatArray(String array) { |
371 | String[] floats = new String[4]; |
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372 | floats = array.split(",");
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373 | |||
374 | float[] ret = new float[floats.length]; |
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375 | |||
376 | for (int i = 0; i < ret.length; i++) { |
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377 | ret[i] = new Float(floats[i]).floatValue(); |
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378 | } |
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379 | |||
380 | return ret;
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381 | } |
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382 | |||
383 | 5332 | jorpiell | /**
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384 | * returns a list (comma-separated) in one unique string
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385 | *
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386 | *
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387 | * @return
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388 | * @param input
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389 | */
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390 | public static String getComaSeparated(String[] input) { |
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391 | return getXSeparated("," , input); |
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392 | } |
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393 | |||
394 | /**
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395 | * returns a list (blanck-separated) in one unique string
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396 | *
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397 | *
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398 | * @return
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399 | * @param input
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400 | */
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401 | public static String getBlankSeparated(String[] input) { |
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402 | return getXSeparated(" " , input); |
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403 | } |
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404 | |||
405 | /**
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406 | * returns a list (X-Character-separated) in one unique string
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407 | *
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408 | *
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409 | * @return
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410 | * @param X
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411 | * @param input
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412 | */
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413 | private static String getXSeparated(String X, String[] input) { |
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414 | String output = ""; |
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415 | if (input.length == 0) { |
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416 | return ""; |
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417 | } |
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418 | output = input[0];
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419 | for (int i = 1; i < input.length; i++) |
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420 | output = output + X + input[i]; |
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421 | return output;
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422 | } |
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423 | |||
424 | /**
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425 | * Replace a part of a String
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426 | *
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427 | *
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428 | * @return
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429 | * @param str String to find the pattern
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430 | * @param pattern Pattern to find
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431 | * @param replace String to replace
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432 | */
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433 | public static String replace(String str, String pattern, String replace) { |
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434 | int s = 0; |
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435 | int e = 0; |
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436 | StringBuffer result = new StringBuffer(); |
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437 | while ((e = str.indexOf(pattern, s)) >= 0) { |
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438 | result.append(str.substring(s, e)); |
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439 | result.append(replace); |
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440 | s = e + pattern.length(); |
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441 | } |
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442 | result.append(str.substring(s)); |
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443 | return result.toString();
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444 | } |
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445 | 5657 | jorpiell | |
446 | /**
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447 | * Generates one random string
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448 | * @param length
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449 | * String length
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450 | * @return
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451 | */
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452 | public static String generateRandomString(int length) { |
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453 | int rnd;
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454 | final Random r = new Random(); |
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455 | final String sorigen = |
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456 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" +
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457 | "abcdefghijklmnopqrstuvwxyz";
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458 | final char fuente[] = sorigen.toCharArray(); |
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459 | char buffer[] = new char[length]; |
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460 | |||
461 | for( int i=0; i < length; i++ ) { |
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462 | rnd = Math.abs( r.nextInt() ) % fuente.length;
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463 | buffer[i] = fuente[rnd]; |
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464 | } |
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465 | return( new String( buffer ) ); |
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466 | } |
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467 | 149 | fernando | } |