📄 htmlencoder.java
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/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org. All rights reserved.
* This code is licensed under the GPL 2.0 license, availible at the root
* application directory.
*/
/*
* Created on Feb 2, 2004
*
* To change the template for this generated file go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
package org.vfny.geoserver.action;
/**
* HTMLEncoder purpose.
*
* <p>
* This is a class taken from the java.sun.com Developer forums that can be
* used to encode/decode a String to/from HTML text.
* </p>
*
* <p>
* Capabilities:
* </p>
*
* <ul>
* <li>
* encode: Encodes a String into HTML text
* </li>
* <li>
* decode: Takes an HTML text and decodes it to a normal String
* </li>
* </ul>
*
* <p>
* Example Use:
* </p>
* <pre><code>
* HTMLEncoder.encode("K�nig"); //will return "König" (For JavaDocs: "K&ouml;nig")
* HTMLEncoder.decode("König"); //will return "K�nig"
* </code></pre>
*
* @author rgould, Refractions Research, Inc.
* @author $Author: dmzwiers $ (last modification)
* @version $Id: HTMLEncoder.java 7048 2007-06-19 16:34:53Z amanfredi $
*/
public class HTMLEncoder {
private static java.util.Hashtable chars = null;
/**
* Translate a String from HTML-text to a regular human-readable String
* @param val the String to be decoded
* @return
*/
public static String decode(String val) {
if (val != null) {
StringBuffer buf = new StringBuffer(val.length() + 8);
char c;
char d;
String res;
int indice;
for (int i = 0; i < val.length(); i++) {
c = val.charAt(i);
switch (c) {
case '&':
if ((i + 1) <= val.length()) {
res = val.substring(i);
/*
* drichard 2005-06-20 : indice should be relative to res :
indice = val.indexOf(';'); // Hasta el ;
*/
indice = res.indexOf(';'); // Hasta el ;
if (indice != -1) {
/*
* drichard 2005-06-20 : d should be relative to res :
d = val.charAt(1);
*/
d = res.charAt(1);
if (d == '#') {
res = res.substring(2, indice);
try {
buf.append((char) Integer.parseInt(res));
i = i + indice;
break;
} catch (Throwable t) {
}
// es un numero se coge hasta el ;
} else {
// No es un numero
res = res.substring(1, indice);
try {
buf.append(getChar(res));
i = i + indice;
break;
} catch (Throwable t) {
}
}
}
}
buf.append(c);
break;
default:
buf.append(c);
break;
}
}
return buf.toString();
} else {
return new String("");
}
}
/**
* Translate a String to an HTML-encoded version of itself
* @param val The String to be encoded
* @return
*/
public static String encode(String val) {
if (val != null) {
StringBuffer buf = new StringBuffer(val.length() + 8);
char c;
for (int i = 0; i < val.length(); i++) {
c = val.charAt(i);
switch (c) {
case '<':
buf.append("<");
break;
case '>':
buf.append(">");
break;
case '&':
buf.append("&");
break;
case '\"':
buf.append(""");
break;
case '\'':
buf.append("'");
break;
// This shows up lower in the other numbered cases.
/*case '�':
case '�':
case '�':
case '�':
case '�':
case '�':
case '�':
case '�':
case '�':
case '�':
buf.append(c + "´");
break;*/
case 160:
case 161:
case 162:
case 163:
case 164:
case 165:
case 166:
case 167:
case 168:
case 169:
case 170:
case 171:
case 172:
case 173:
case 174:
case 175:
case 176:
case 177:
case 178:
case 179:
case 180:
case 181:
case 182:
case 183:
case 184:
case 185:
case 186:
case 187:
case 188:
case 189:
case 190:
case 191:
case 192:
case 194:
case 195:
case 196:
case 197:
case 198:
case 199:
case 200:
case 202:
case 203:
case 204:
case 206:
case 207:
case 208:
case 209:
case 210:
case 212:
case 213:
case 214:
case 215:
case 216:
case 217:
case 219:
case 220:
case 221:
case 222:
case 223:
case 224:
case 226:
case 227:
case 228:
case 229:
case 230:
case 231:
case 232:
case 234:
case 235:
case 236:
case 238:
case 239:
case 240:
case 241:
case 242:
case 244:
case 245:
case 246:
case 247:
case 248:
case 249:
case 251:
case 252:
case 253:
case 254:
case 255:
buf.append("&#" + ((int) c) + ";");
break;
default:
buf.append(c);
break;
}
}
return buf.toString();
} else {
return new String("");
}
}
private static char getChar(String res) throws IllegalArgumentException {
loadChar();
Character o = (Character) chars.get(res);
if (o == null) {
throw new IllegalArgumentException("Inexistant char: " + res);
} else {
return o.charValue();
}
}
private static void loadChar() {
if (chars == null) {
chars = new java.util.Hashtable();
chars.put("amp", new Character((char) 38));
chars.put("lt", new Character((char) 60));
chars.put("gt", new Character((char) 62));
chars.put("nbsp", new Character((char) 160));
chars.put("iexcl", new Character((char) 161));
chars.put("cent", new Character((char) 162));
chars.put("pound", new Character((char) 163));
chars.put("curren", new Character((char) 164));
chars.put("yen", new Character((char) 165));
chars.put("brvbar", new Character((char) 166));
chars.put("sect", new Character((char) 167));
chars.put("uml", new Character((char) 168));
chars.put("copy", new Character((char) 169));
chars.put("ordf", new Character((char) 170));
chars.put("laquo", new Character((char) 171));
chars.put("not", new Character((char) 172));
chars.put("shy", new Character((char) 173));
chars.put("reg", new Character((char) 174));
chars.put("macr", new Character((char) 175));
chars.put("deg", new Character((char) 176));
chars.put("plusmn", new Character((char) 177));
chars.put("sup2", new Character((char) 178));
chars.put("sup3", new Character((char) 179));
chars.put("acute", new Character((char) 180));
chars.put("micro", new Character((char) 181));
chars.put("para", new Character((char) 182));
chars.put("middot", new Character((char) 183));
chars.put("cedil", new Character((char) 184));
chars.put("sup1", new Character((char) 185));
chars.put("ordm", new Character((char) 186));
chars.put("raquo", new Character((char) 187));
chars.put("frac14", new Character((char) 188));
chars.put("frac12", new Character((char) 189));
chars.put("frac34", new Character((char) 190));
chars.put("iquest", new Character((char) 191));
chars.put("Agrave", new Character((char) 192));
chars.put("Aacute", new Character((char) 193));
chars.put("Acirc", new Character((char) 194));
chars.put("Atilde", new Character((char) 195));
chars.put("Auml", new Character((char) 196));
chars.put("Aring", new Character((char) 197));
chars.put("AElig", new Character((char) 198));
chars.put("Ccedil", new Character((char) 199));
chars.put("Egrave", new Character((char) 200));
chars.put("Eacute", new Character((char) 201));
chars.put("Ecirc", new Character((char) 202));
chars.put("Euml", new Character((char) 203));
chars.put("Igrave", new Character((char) 204));
chars.put("Iacute", new Character((char) 205));
chars.put("Icirc", new Character((char) 206));
chars.put("Iuml", new Character((char) 207));
chars.put("ETH", new Character((char) 208));
chars.put("Ntilde", new Character((char) 209));
chars.put("Ograve", new Character((char) 210));
chars.put("Oacute", new Character((char) 211));
chars.put("Ocirc", new Character((char) 212));
chars.put("Otilde", new Character((char) 213));
chars.put("Ouml", new Character((char) 214));
chars.put("times", new Character((char) 215));
chars.put("Oslash", new Character((char) 216));
chars.put("Ugrave", new Character((char) 217));
chars.put("Uacute", new Character((char) 218));
chars.put("Ucirc", new Character((char) 219));
chars.put("Uuml", new Character((char) 220));
chars.put("Yacute", new Character((char) 221));
chars.put("THORN", new Character((char) 222));
chars.put("szlig", new Character((char) 223));
chars.put("agrave", new Character((char) 224));
chars.put("aacute", new Character((char) 225));
chars.put("acirc", new Character((char) 226));
chars.put("atilde", new Character((char) 227));
chars.put("auml", new Character((char) 228));
chars.put("aring", new Character((char) 229));
chars.put("aelig", new Character((char) 230));
chars.put("ccedil", new Character((char) 231));
chars.put("egrave", new Character((char) 232));
chars.put("eacute", new Character((char) 233));
chars.put("ecirc", new Character((char) 234));
chars.put("euml", new Character((char) 235));
chars.put("igrave", new Character((char) 236));
chars.put("iacute", new Character((char) 237));
chars.put("icirc", new Character((char) 238));
chars.put("iuml", new Character((char) 239));
chars.put("eth", new Character((char) 240));
chars.put("ntilde", new Character((char) 241));
chars.put("ograve", new Character((char) 242));
chars.put("oacute", new Character((char) 243));
chars.put("ocirc", new Character((char) 244));
chars.put("otilde", new Character((char) 245));
chars.put("ouml", new Character((char) 246));
chars.put("divide", new Character((char) 247));
chars.put("oslash", new Character((char) 248));
chars.put("ugrave", new Character((char) 249));
chars.put("uacute", new Character((char) 250));
chars.put("ucirc", new Character((char) 251));
chars.put("uuml", new Character((char) 252));
chars.put("yacute", new Character((char) 253));
chars.put("thorn", new Character((char) 254));
chars.put("yuml", new Character((char) 255));
}
}
}
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