import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.StreamTokenizer;


/**
 * A simple class that prints out all the tokens in the file 
 * specified on the command line.  Intended as a mechanism for
 * experimenting with java.io.StreamTokenizer.  Documentation on
 * that class is available at.
 *  http://java.sun.com/j2se/1.4/docs/api/java/io/StreamTokenizer.html
 *
 * @author Samuel A. Rebelsky
 * @version 1.0 of 23 September 2002
 */
public class PrintTokens {
  public static void main(String[] args) {
    // Make sure that the program is called correctly.
    if (args.length != 1) {
      System.err.println("Usage: java Test filename");
      System.exit(1);
    } // if (args.length != 1)
    try {
      // Local variables
      int tok;	// The number of the token
      // Create the token stream.
      StreamTokenizer tokenStream =
        new StreamTokenizer(new FileReader(args[0]));

      // Update any characteristics of the stream.
      // (Nothing right now)

      // Repeatedly read tokens until we're out of tokens.
      while ((tok = tokenStream.nextToken()) != StreamTokenizer.TT_EOF) {
        // Print the token id.
        System.out.print("(");
        System.out.print(tok);
        System.out.print("): ");
        // Print the token value.
        System.out.println(tokenStream.toString());
      }
    } // try
    // Whoops!  Tried to tokenize a file that doesn't exist.
    catch (FileNotFoundException fnfe) {
      System.err.println("Error: " + fnfe.toString());
    } // catch
    // Whoops!  Something went seriously wrong in nextToken().
    catch (IOException ioe) {
      System.err.println("I/O Error: " + ioe.toString());
    }
  } // main(String[])
} // class PrintTokens