Added the load functionality to the java javascript scripting engine and deal with

ScriptFromFile.java

/*
Copyright (C) 2012 Andreas Löf

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

*/

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;

import javax.script.*;

public class ScriptFromFile {
	
	private final ScriptEngine engine;
	private String scriptroot;

	  public ScriptFromFile() throws ScriptException {
	    ScriptEngineManager factory = new ScriptEngineManager();
	    this.engine = factory.getEngineByName("JavaScript");

	    this.engine.put("ScriptFromFile", this);
	    this.engine.eval("function load(filename) { ScriptFromFile.load(filename); }");
	  }
	

    public static void main(String args[]) throws FileNotFoundException, ScriptException {
    	
        new ScriptFromFile().load(args[0]);
        
    	
    }
    
    

    public void load(String filename) throws ScriptException {
      try {
    	  String sep = System.getProperty("file.separator");
    	  filename = filename.replace("\\", sep);
    	  filename = filename.replace("/", sep);
    	  System.out.println("loading> " + filename);
    	  
    	if(scriptroot == null) {
    		scriptroot = filename.substring(0,filename.lastIndexOf(sep));
    	}
    	if(scriptroot != null && filename.startsWith("."+sep)) {
    		
    		filename = scriptroot + sep + filename.substring(2);
    	}
    	else if(scriptroot != null && filename.startsWith(".."+sep)) {
    		filename = scriptroot + sep + filename;
    	} 
        
    	this.engine.eval(new FileReader(filename));
      }
      catch(FileNotFoundException e) {
        throw new RuntimeException("Error loading javascript file: " + filename, e);
      }
    }
}