content: /*
   * $Id: Console.java,v 1.7 2006/12/22 14:06:40 thiago Exp $
   * Copyright (C) 2003-2007 Kepler Project.
   *
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * "Software"), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   *
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
   * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
   * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
   * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
   * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  
  package org.keplerproject.luajava;
  
  import java.io.BufferedReader;
  import java.io.InputStreamReader;
  
  /**
   * Simple LuaJava console.
   * This is also an example on how to use the Java side of LuaJava and how to startup
   * a LuaJava application.
   *
   * @author Thiago Ponte
   */
  public class Console {
  
      /**
       * Creates a console for user interaction.
       *
       * @param args names of the lua files to be executed
       */
      public static void main(String[] args) {
          try {
              LuaState L = LuaStateFactory.newLuaState();
              L.openLibs();
  
              if (args.length > 0) {
                  for (int i = 0; i < args.length; i++) {
                      int res = L.LloadFile(args[i]);
                      if (res == 0) {
                          res = L.pcall(0, 0, 0);
                      }
                      if (res != 0) {
                          throw new LuaException("Error on file: " + args[i] + ". " + L.toString(-1));
                      }
                  }
  
                  return;
              }
  
              System.out.println("API Lua Java - console mode.");
  
              BufferedReader inp = new BufferedReader(new InputStreamReader(System.in));
  
              String line;
  
              System.out.print("> ");
              while ((line = inp.readLine()) != null && !line.equals("exit")) {
                  int ret = L.LloadBuffer(line.getBytes(), "from console");
                  if (ret == 0) {
                      ret = L.pcall(0, 0, 0);
                  }
                  if (ret != 0) {
                      System.err.println("Error on line: " + line);
                      System.err.println(L.toString(-1));
                  }
                  System.out.print("> ");
              }
  
              L.close();
          } catch (Exception e) {
              e.printStackTrace();
          }
  
      }
  }