// This file is copyrighted and is part of nzdis-oql package. 
// See the file LICENSE for copyright information and the terms and conditions for copying, distributing and modifications of nzdis-oql package.
// @copyright@

package nzdis.lang.oql.app;

/**/
import nzdis.lang.oql.node.Node;
import nzdis.lang.oql.TreeBuilder;
import java.io.FileReader;
import java.io.FileNotFoundException;


/**
 * Prints the tree of the given OQL file on standard output.
 * This is a toy class which demonstrates the use of PrintWalker adapter
 * for traversing the tree.
 *
 *@author Mariusz Nowostawski
 *@version @version@ $Revision: 1.1 $
 */
public class PrintRawTree {

  public static void main(String[] arguments) {

    if(arguments.length != 1) {
      System.out.println("usage:");
      System.out.println("  java PrintTree filename");
      System.exit(1);
    }
    
    try{
      Node ast = TreeBuilder.getNode(new FileReader(arguments[0]), false);//complex tree
      ast.apply(new PrintWalker()); 
    }catch(Exception ex){
      ex.printStackTrace();
      return;
    }
  }

}