--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/luan/tools/CmdLine.java	Thu Dec 20 02:43:37 2012 +0000
@@ -0,0 +1,114 @@
+package luan.tools;
+
+import java.util.Arrays;
+import java.util.Scanner;
+import luan.lib.BasicLib;
+import luan.lib.JavaLib;
+import luan.Lua;
+import luan.LuaState;
+import luan.LuaFunction;
+import luan.LuaTable;
+import luan.LuaNumber;
+import luan.LuaException;
+import luan.interp.LuaCompiler;
+
+
+public class CmdLine {
+
+	public static void main(String[] args) throws Exception {
+		LuaState lua = LuaCompiler.newLuaState();
+		BasicLib.register(lua);
+		JavaLib.register(lua);
+		boolean interactive = false;
+		boolean showVersion = false;
+		int i = 0;
+		if( args.length == 0 ) {
+			interactive = true;
+			showVersion = true;
+		} else {
+			while( i < args.length ) {
+				String arg = args[i];
+				if( !arg.startsWith("-") || arg.equals("--") )
+					break;
+				if( arg.equals("-i") ) {
+					interactive = true;
+				} else if( arg.equals("-v") ) {
+					showVersion = true;
+				} else if( arg.equals("-e") ) {
+					if( ++i == args.length )
+						error("'-e' needs argument");
+					String cmd = args[i];
+					try {
+						LuaFunction fn = BasicLib.load(lua,cmd);
+						fn.call(lua);
+					} catch(LuaException e) {
+						System.err.println("command line error: "+e.getMessage());
+						System.exit(-1);
+					}
+				} else if( arg.equals("-") ) {
+					try {
+						BasicLib.dofile(lua,null);
+					} catch(LuaException e) {
+						System.err.println(e.getMessage());
+						System.exit(-1);
+					}
+					System.exit(0);
+				} else {
+					error("unrecognized option '"+arg+"'");
+				}
+				i++;
+			}
+		}
+		if( showVersion )
+			System.out.println(Lua.version);
+		if( i < args.length ) {
+			String file = args[i++];
+			Object[] varArgs = new Object[args.length-1];
+			System.arraycopy(args,1,varArgs,0,varArgs.length);
+			LuaTable argsTable = new LuaTable();
+			for( int j=0; j<args.length; j++ ) {
+				argsTable.put( new LuaNumber(j), args[j] );
+			}
+			lua.global().put("arg",argsTable);
+			try {
+				LuaFunction fn = BasicLib.loadfile(lua,file);
+				fn.call(lua,varArgs);
+			} catch(LuaException e) {
+//				System.err.println(e.getMessage());
+				e.printStackTrace();
+				System.exit(-1);
+			}
+		}
+		if( interactive )
+			interactive(lua);
+	}
+
+	private static void error(String msg) {
+		System.err.println(msg);
+		System.err.println("usage: java luan.CmdLine [options] [script [args]]");
+		System.err.println("Available options are:");
+		System.err.println("  -e stat  execute string 'stat'");
+		System.err.println("  -i       enter interactive mode after executing 'script'");
+//		System.err.println("  -l name  require library 'name'");
+		System.err.println("  -v       show version information");
+//		System.err.println("  -E       ignore environment variables");
+		System.err.println("  --       stop handling options");
+		System.err.println("  -        stop handling options and execute stdin");
+		System.exit(-1);
+	}
+
+	static void interactive(LuaState lua) {
+		while( true ) {
+			System.out.print("> ");
+			String input = new Scanner(System.in).nextLine();
+			try {
+				LuaFunction fn = BasicLib.load(lua,input);
+				Object[] rtn = fn.call(lua);
+				if( rtn.length > 0 )
+					BasicLib.print(lua,rtn);
+			} catch(LuaException e) {
+				System.out.println(e.getMessage());
+			}
+		}
+	}
+}