/* Copyright 2002, 2003 Elliotte Rusty Harold
This library is free software; you can redistribute it and/or modify
it under the terms of version 2.1 of the GNU Lesser General Public
License as published by the Free Software Foundation.
This library 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
You can contact Elliotte Rusty Harold by sending e-mail to
[email protected]. Please include the word "XOM" in the
subject line. The XOM home page is located at http://www.xom.nu/
*/
package nu.xom.samples;
import java.io.*;
import nu.xom.Attribute;
import nu.xom.Comment;
import nu.xom.Document;
import nu.xom.Builder;
import nu.xom.NodeFactory;
import nu.xom.Nodes;
import nu.xom.ParsingException;
import nu.xom.ProcessingInstruction;
import nu.xom.Serializer;
import nu.xom.Text;
/**
* @author Elliotte Rusty Harold
* @version 1.0
*
*/
public class StreamingROT13 extends NodeFactory {
public static String rot13(String s) {
StringBuffer out = new StringBuffer(s.length());
for (int i = 0; i < s.length(); i++) {
int c = s.charAt(i);
if (c >= 'A' && c <= 'M') out.append((char) (c+13));
else if (c >= 'N' && c <= 'Z') out.append((char) (c-13));
else if (c >= 'a' && c <= 'm') out.append((char) (c+13));
else if (c >= 'n' && c <= 'z') out.append((char) (c-13));
else out.append((char) c);
}
return out.toString();
}
// We don't really need the comments. We just want to print them.
public Nodes makeComment(String data) {
return new Nodes(new Comment(rot13(data)));
}
public Nodes makeText(String data) {
return new Nodes(new Text(rot13(data)));
}
public Nodes makeAttribute(String name, String namespace,
String value, Attribute.Type type) {
return new Nodes(new Attribute(name, namespace, rot13(value), type));
}
public Nodes makeProcessingInstruction(
String target, String data) {
return new Nodes(new ProcessingInstruction(rot13(target), rot13(data)));
}
public static void main(String[] args) {
if (args.length <= 0) {
System.out.println("Usage: java nu.xom.samples.StreamingROT13 URL");
return;
}
try {
Builder parser = new Builder(new StreamingROT13());
// Read the document
Document document = parser.build(args[0]);
// Write it out again
Serializer serializer = new Serializer(System.out);
serializer.write(document);
}
catch (IOException ex) {
System.out.println(
"Due to an IOException, the parser could not encode " + args[0]
);
}
catch (ParsingException ex) {
System.out.println(ex);
ex.printStackTrace();
}
} // end main
}
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