writer.println(")>");
writer.println(")*>");
    public void writeDtd(Database model, Writer output) throws IOException    {        PrintWriter writer = new PrintWriter(output);        writer.println("<!-- DTD for XML data files for database "+model.getName()+" -->\n");        writer.println("<!ELEMENT data (");        for (Iterator tableIt = model.getTables().iterator(); tableIt.hasNext();)        {            Table table = (Table)tableIt.next();            writer.print("    "+table.getName());            if (tableIt.hasNext())            {                writer.println(" |");            }            else            {                writer.println();            }        }        writer.println(")>");        for (Iterator tableIt = model.getTables().iterator(); tableIt.hasNext();)        {            writeTableElement((Table)tableIt.next(), writer);        }    }