SAX based TagStripper

import org.xml.sax.*;
import org.xml.sax.helpers.*;
import java.io.*;


public class TagStripper implements DocumentHandler {

  private Writer out;
  
  public TagStripper(Writer out) {
    this.out = out;
  }

  public TagStripper(OutputStream out) {
    this(new OutputStreamWriter(out));
  }

  public void setDocumentLocator(Locator locator) {}
  
  public void startDocument() throws SAXException {}

  // Never forget to flush!
  public void endDocument() throws SAXException {
    try {
      out.flush();  
    }
    catch (IOException e) {
      throw new SAXException(e);
    }       
  }
  
  public void startElement(String name, AttributeList atts)
   throws SAXException {}
  
  public void endElement(String name) throws SAXException {}
  
  public void characters(char[] text, int start, int length) 
   throws SAXException {
    try {
      out.write(text, start, length); 
    }
    catch (IOException e) {
      throw new SAXException(e);
    }
  }
  
  public void ignorableWhitespace(char[] text, int start, int length)
   throws SAXException {
    // ignore ignorable white space
  }
  
  public void processingInstruction(String target, String data)
   throws SAXException {}


  // Could easily have put main() method in a separate class
  public static void main(String[] args) {
    
    Parser parser;
    try {
     parser = ParserFactory.makeParser();
    }
    catch (Exception e) {
      // fall back on Xerces parser by name
      try {
        parser = ParserFactory.makeParser(
         "org.apache.xerces.parsers.SAXParser");
      }
      catch (Exception ee) {
        System.err.println("Couldn't locate a SAX parser");
        return;          
      }
    }
     
    if (args.length == 0) {
      System.out.println(
       "Usage: java TagStripper URL1 URL2..."); 
    } 
      
    // Install the Document Handler      
    parser.setDocumentHandler(new TagStripper(System.out));
    
    // start parsing... 
    for (int i = 0; i < args.length; i++) {
      
      // command line should offer URIs or file names
      try {
        parser.parse(args[i]);
      }
      catch (SAXParseException e) { // a well-formedness error
        System.out.println(args[i] + " is not well formed.");
        System.out.println(e.getMessage()
         + " at line " + e.getLineNumber() 
         + ", column " + e.getColumnNumber());
      }
      catch (SAXException e) { // some other kind of error
        System.out.println(e.getMessage());
      }
      catch (IOException e) {
        System.out.println("Could not report on " + args[i] 
         + " because of the IOException " + e);
      }
      
    }  
  
  }

}