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import java.io.*;
import nu.xom.*
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();
}
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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