Encode HTML : Document HTML « Development Class « Java

1. Java
2. Development Class
3. Document HTML

Encode HTML

   

/*
 *  SSHTools - Java SSH2 API
 *
 *  Copyright (C) 2002-2003 Lee David Painter and Contributors.
 *
 *  Contributions made by:
 *
 *  Brett Smith
 *  Richard Pernavas
 *  Erwin Bolwidt
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */



import java.awt.Color;

public class Util {
    /**
  * This method will replace '&' with "&amp;", '"' with "&quot;", '<' with "&lt;" and '>' with "&gt;".
  *
  * @param html html to encode
  * @return encoded html
  */
      public static String encodeHTML(String html) {
          // Does java have a method of doing this?
          StringBuffer buf = new StringBuffer();
          char ch;

          for (int i = 0; i < html.length(); i++) {
              ch = html.charAt(i);

              switch (ch) {
              case '&':

                  //  May be already encoded
                  if (((i + 5) < html.length()) &&
                          html.substring(i + 1, i + 5).equals("amp;")) {
                      buf.append(ch);
                  } else {
                      buf.append("&amp;");
                  }

                  break;

              case '"':
                  buf.append("&quot;");

                  break;

              case '<':
                  buf.append("&lt;");

                  break;

              case '>':
                  buf.append("&gt;");

                  break;

              default:
                  buf.append(ch);
              }
          }

          return buf.toString();
      }

}

   
    
    
  

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