import java.util.zip.*;
import java.util.List;
import java.util.regex.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.*;
import java.util.concurrent.locks.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.table.*;
import java.lang.reflect.*;
import java.lang.ref.*;
import java.lang.management.*;
import java.security.*;
import java.security.spec.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.imageio.*;
import java.math.*;


import java.text.SimpleDateFormat;
import java.security.KeyStore;
import java.nio.ByteBuffer;
import java.util.regex.Pattern;
import org.pushingpixels.substance.api.skin.*;
import java.nio.channels.FileChannel;
import java.util.logging.Logger;
import javax.swing.event.AncestorEvent;
import java.nio.*;
import java.io.*;
import java.nio.charset.Charset;
import java.util.logging.Logger;
import javax.net.ssl.*;
import org.pushingpixels.substance.api.*;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.util.logging.Level;
import javax.net.ssl.*;
import javax.swing.event.AncestorListener;
import javax.swing.Timer;
import javax.swing.Timer;
import java.awt.datatransfer.StringSelection;
import java.nio.charset.*;
import java.util.*;
import java.net.*;
import java.nio.channels.FileChannel;
import java.security.KeyStore;
import java.util.logging.Level;
import java.util.regex.Matcher;
import java.util.zip.GZIPOutputStream;
class main {
static boolean autoClose = true;
static int initialDelay = 0;
static boolean infoBox, repeatEverything;

static int port;
static Object onUtterance; // voidfunc(S)
static List<String> botsToSendUtterancesTo = ll(); // ll("Voice Actions.", "Show Item Page.");
static List<WebSocket> webSockets = synchroList();
static boolean startRecognition;
static java.util.Timer stopper;
static String language = "en-US";
static String myURL;
static JButton btn;
static boolean hadAnyWebSockets; // Does Chrome work at all?

public static void main(final String[] args) throws Exception { substance();
  startBotHere("Andy", "#1009593");
  startBotHere("Gudrun", "#1008549");
  botsToSendUtterancesTo = persistentList("Bots to send utterances to", botsToSendUtterancesTo);
  load("language");
  if (isMainProgram()) {
    infoBox = true;
    repeatEverything = true;
  }
  
  NanoHTTPD.SOCKET_READ_TIMEOUT = 24*3600*1000; // not long enough - TODO: Fix in NanoHTTPD
  
  port = serveHttpWithWebSockets(9999, new Object() { Object get(NanoHTTPD.IHTTPSession handshake) { try { 
    WebSocket ws = new WebSocket(handshake) {
      protected void onPong(WebSocketFrame pongFrame) { print("pong"); }
      protected void onMessage(WebSocketFrame messageFrame) { try {
        cancelTimeout();
        final String s = messageFrame.getTextPayload();
        if (repeatEverything) {
          //send("stop");
          sendOpt(mouth(), infoBoxAndReturn(/*switcheroo*/(s)));
          send("start");
        } else infoBoxOrPrint(/*"User said: " +*/ s, infoBox);
        { Thread _t_0 = new Thread() {
public void run() { try {
          pcallF(onUtterance, s);
          for (String bot : cloneList(botsToSendUtterancesTo)) {
            print("Sending to bot " + bot);
            sendOptInNewThread(bot, "User said: *", s);
          }
        } catch (Throwable __e) { printStackTrace2(__e); } }
};
startThread(_t_0); }
        hotCommands(s);
      } catch (Exception __e) { throw rethrow(__e); } }
      protected void onClose(WebSocketFrame.CloseCode code, String reason, boolean initiatedByRemote) { webSockets.remove(this); }
      protected void onException(IOException e) { printStackTrace(e); }
    };
    if (startRecognition) {
      startRecognition = false;
      ws.send("start");
    }
    
    // close any other recognizers
    for (WebSocket ws2 : cloneList(webSockets)) {
      try { ws2.close(WebSocketFrame.CloseCode.NormalClosure, ""); } catch (Throwable __e) { printStackTrace2(__e); }
      webSockets.remove(ws2);
    }
    
    hadAnyWebSockets = true;
    
    return addAndReturn(webSockets, ws);
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "WebSocket ws = new WebSocket(handshake) {\n      protected void onPong(WebSocketF..."; }});
  myURL = print("http://localhost:" + port + "/popup");
  startChromeApp(myURL);
  makeBot("Chrome Speech.");
  
  showControls(jcenteredline(btn = jbutton("Open Speech Recognizer", new Runnable() { public void run() { try { 
    startChromeApp(myURL)
  ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "startChromeApp(myURL)"; }})));
  awtEvery(btn, 500, new Runnable() { public void run() { try {  setEnabled(btn, empty(webSockets)) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "setEnabled(btn, empty(webSockets))"; }});
  
  /*thread "Chrome Re-Starter" {
    sleepSeconds(20);
    repeat with sleep 5 {
      if (hadAnyWebSockets && empty(webSockets)) {
        startChromeApp(myURL);
        sleepSeconds(15);
      }
    }
  });*/
}

static Object html(String uri, final Map<String, String> params) { try {

  if (neq(uri, "/popup"))
    return hbody("Opening popup..." + hjavascript("\n      window.open('/popup', 'speech_recognizer', 'width=300,height=300,location=no');\n      setTimeout(function() { window.close(); }, 10000);\n    "));

  return hhtml(hhead(htitle("Speech Recognizer")) + hbody(div(
    h3("Speech Recognizer")
    + loadJQuery()
    + hdiv("Language: " + language, "id" , "lang", "style" , "font-size: 10px")
    + hdiv("Results come here", "id" , "results", "style" , "margin: 10px")
  + hjavascript("\n    var websocket;\n    var stopUntil = 0;\n    \n    function stopRecognition() {\n      recognition.stop();\n      started = false;\n      $(\"#btn\").html(\"Start recognition\");\n      document.title = \"Speech Recognizer\";\n    }\n    \n    function startRecognition() {\n      if (Date.now() < stopUntil) return;\n      recognition.start();\n      started = true;\n      $(\"#btn\").html(\"Stop recognition\");\n      document.title = \"Listening - Speech Recognizer\";\n    }\n    \n    function restartRecognition() {\n      stopRecognition();\n      startRecognition();\n    }\n    \n    function openWebSocket() {\n      websocket = new WebSocket(\"ws://localhost:#PORT#/\");\n      websocket.onopen = function(event) {\n        $(\"#btn\").prop('disabled', false);\n        $(\"#results\").html(\"Speak now...\");\n        startRecognition();\n      };\n    \n      websocket.onmessage = function(event) {\n        if (event.data == 'start' && !started) startOrStop();\n        if (event.data == 'stop' && started) { stopUntil = Date.now()+200; stopRecognition(); }\n        if (event.data.substring(0, 9) == 'language ') {\n          var l = event.data.substring(9);\n          recognition.lang = l;\n          $(\"#lang\").html(\"Language: \" + l);\n        }\n      };\n    \n      websocket.onclose = function(event) {\n        $(\"#results\").html(\"WebSocket closed\");\n        if (#AUTOCLOSE#) window.close();\n      };\n    }\n    \n    setTimeout(openWebSocket, #INITIALDELAY#);\n      \n    var recognition = new webkitSpeechRecognition();\n    recognition.lang = \"#LANGUAGE#\";\n    \n    recognition.onerror = function(event) { \n      var s = \"&nbsp;\";\n      if (event.error != \"no-speech\") s = \"Error: \" + event.error;\n      $(\"#results\").html(s);\n      stopRecognition();\n      //setTimeout(startRecognition, 1000); // safety delay\n    }\n    \n    recognition.onresult = function(event) { \n      var result = event.results[0];\n      var transcript = result[0].transcript;\n      $(\"#results\").html(\"Transcript: \" + transcript);\n      websocket.send(transcript);\n      stopUntil = Date.now()+200;\n      //stopRecognition(); setTimeout(startRecognition, 100);\n    }\n    \n    recognition.onnomatch = function(event) { \n      $(\"#results\").html(\"-\");\n      //stopRecognition(); setTimeout(startRecognition, 100);\n    }\n    \n    recognition.onend = function(event) { \n      //$(\"#results\").html(\"-end-\");\n      stopRecognition();\n      setTimeout(startRecognition, 100);\n    }\n    \n    var started = false;\n    \n    function startOrStop() {\n      if (started) {\n        stopUntil = Date.now()+1000; // block restart by onend handler\n        stopRecognition();\n      } else {\n        stopRecognition(); startRecognition();\n      }\n    }\n    \n    window.resizeTo(300, 300);\n  ").replace("#PORT#", str(port)).replace("#AUTOCLOSE#", autoClose ? "true" : "false").replace("#INITIALDELAY#", str(initialDelay)).replace("#LANGUAGE#", language)
    + tag("button", "Start recognition", "onclick" , "startOrStop()", "type" , "button", "id" , "btn", "disabled" , "disabled")
    //+ p(ahref("#", "Popup", onClick := "window.open('/', 'speech_recognizer', 'width=300,height=300,location=no'); return false;"));
  , "style" , "text-align: center")));
} catch (Exception __e) { throw rethrow(__e); } }

static void startRecognition() {
  List<WebSocket> l = cloneList(webSockets);
  if (empty(l)) startRecognition = true;
  else {
    //print("Starting recognition." + (l(l) > 1 ? "Weird: Have " + l(l) + " websockets" : ""));
    try {
      first(l).send("start");
    } catch (Throwable __e) { printStackTrace2(__e); }
  }
}

static void stopRecognition() {
  if (startRecognition) startRecognition = false;
  if (nempty(webSockets)) try {
    first(webSockets).send("stop");
  } catch (Throwable __e) { printStackTrace2(__e); }
}

static String hotCommands(String s) {
  if (match("english", s) || match("englisch", s)) return answer("language " + quote("en-US"));
  if (match("german", s) || match("deutsch", s)) return answer("language " + quote("de-DE"));
  if (match("stop recognition", s)) { stopRecognition(); return "OK"; }
  return null;
}

static String answer(String s) {
final Matches m = new Matches();

  { String _a_4 = hotCommands(s); if (!empty(_a_4)) return _a_4; }
  if (match("start recognition timeout *", s, m)) {
    final int seconds = parseInt(m.unq(0));
    startRecognition();
    stopper = timerOnce(toMS(seconds), "stopRecognition");
    return "OK";
  }
  if (match("start recognition", s)) { startRecognition(); return "OK"; }
  if (match("send to bot *", s, m)) { setAdd(botsToSendUtterancesTo, m.unq(0)); return "OK"; }
  if (match("what bots are you sending to", s)) return sfu(botsToSendUtterancesTo);
  if (match("language *", s, m)) {
    setAndSave("language", m.unq(0));
    try { if (nempty(webSockets)) first(webSockets).send("language " + m.unq(0)); } catch (Throwable __e) { printStackTrace2(__e); }
    stopRecognition();
    sleep(500);
    startRecognition();
    return "OK";
  }

return null;
}

static void cancelTimeout() {
  if (stopper != null) { stopper.cancel(); stopper = null; }
}

static String mouth() {
  return eq(language, "de-DE") ? "Gudrun" : "Andy";
}
static <A> List<A> ll(A... a) {
  return litlist(a);
}
static void infoBoxOrPrint(String s, boolean infoBox) {
  if (infoBox) infoBox(s);
  else print(s);
}
static String sfu(Object o) { return structureForUser(o); }
static Object pcallF(Object f, Object... args) {
  return pcallFunction(f, args);
}


static <A, B> B pcallF(F1<A, B> f, A a) { try {
  return f == null ? null : f.get(a);
} catch (Throwable __e) { return null; } }

static String sendOpt(String bot, String text, Object... args) {
  return sendToLocalBotOpt(bot, text, args);
}
static boolean empty(Collection c) { return c == null || c.isEmpty(); }
static boolean empty(String s) { return s == null || s.length() == 0; }
static boolean empty(Map map) { return map == null || map.isEmpty(); }
static boolean empty(Object[] o) { return o == null || o.length == 0; }
static boolean empty(Object o) {
  if (o instanceof Collection) return empty((Collection) o);
  if (o instanceof String) return empty((String) o);
  if (o instanceof Map) return empty((Map) o);
  if (o instanceof Object[]) return empty((Object[]) o);
  throw fail("unknown type for 'empty': " + getType(o));
}

static boolean empty(float[] a) { return a == null || a.length == 0; }
static boolean empty(int[] a) { return a == null || a.length == 0; }
static boolean empty(long[] a) { return a == null || a.length == 0; }
static String div(Object contents, Object... params) {
  return htag("div", contents, params);
}
static String quote(Object o) {
  if (o == null) return "null";
  return quote(str(o));
}

static String quote(String s) {
  if (s == null) return "null";
  StringBuilder out = new StringBuilder((int) (l(s)*1.5+2));
  quote_impl(s, out);
  return out.toString();
}
  
static void quote_impl(String s, StringBuilder out) {
  out.append('"');
  int l = s.length();
  for (int i = 0; i < l; i++) {
    char c = s.charAt(i);
    if (c == '\\' || c == '"')
      out.append('\\').append(c);
    else if (c == '\r')
      out.append("\\r");
    else if (c == '\n')
      out.append("\\n");
    else
      out.append(c);
  }
  out.append('"');
}
static int serveHttpWithWebSockets(int port, Object factory) {
  return serveHttpWithWebsockets(port, factory);
}

// serve on random port, return port number used
static int serveHttpWithWebSockets(Object factory) {
  return serveHttpWithWebsockets(factory);
}
static String hdiv(Object contents, Object... params) {
  return div(contents, params);
}
// returns bot class if it is started here, null otherwise
static Class startBotHere(String botName, String botID) {
  DialogIO bot = newFindBot(botName);
  if (bot != null) {
    bot.close();
    return null;
  } else {
    print("Bot " + quote(botName) + " not found. Starting " + botID);
    return run(botID);
  }
}
static boolean neq(Object a, Object b) {
  return !eq(a, b);
}
static String tag(String tag) {
  return htag(tag);
}

static String tag(String tag, Object contents, Object... params) {
  return htag(tag, str(contents), params);
}

static String tag(String tag, StringBuilder contents, Object... params) {
  return htag(tag, contents, params);
}

static String tag(String tag, StringBuffer contents, Object... params) {
  return htag(tag, contents, params);
}
static String hhead(Object contents) {
  return tag("head", contents);
}
static Throwable printStackTrace(Throwable e) {
  // we go to system.out now - system.err is nonsense
  print(getStackTrace(e));
  return e;
}

static void printStackTrace() {
  printStackTrace(new Throwable());
}

static void printStackTrace(String msg) {
  printStackTrace(new Throwable(msg));
}

/*static void printStackTrace(S indent, Throwable e) {
  if (endsWithLetter(indent)) indent += " ";
  printIndent(indent, getStackTrace(e));
}*/
static <A> List<A> cloneList(Collection<A> l) {
  if (l == null) return new ArrayList();
  // assume collection's mutex is equal to collection, which will be true unless you explicitly pass a mutex to synchronizedList() which no one ever does.
  synchronized(l) {
    return new ArrayList<A>(l);
  }
}
static JButton jbutton(String text, Object action) {
  return newButton(text, action);
}

// button without action
static JButton jbutton(String text) {
  return newButton(text, null);
}

static JButton jbutton(BufferedImage img, Object action) {
  return setButtonImage(img, jbutton("", action));
}

static JButton jbutton(Action action) {
  return new JButton(action);
}
static boolean eq(Object a, Object b) {
  return a == null ? b == null : a == b || a.equals(b);
}
static String str(Object o) {
  return o == null ? "null" : o.toString();
}

static String str(char[] c) {
  return new String(c);
}
static void setEnabled(final JComponent c, final boolean enable) {
  if (c != null) { swingAndWait(new Runnable() { public void run() { try {  c.setEnabled(enable); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.setEnabled(enable);"; }}); }
}
static JPanel jcenteredline(final Component... components) {
  //ret new CenteredLine(components);
  return swing(new F0<JPanel>() { JPanel get() { try { return  jFullCenter(hstackWithSpacing(components)) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "jFullCenter(hstackWithSpacing(components))"; }});
}

static JPanel jcenteredline(List<? extends Component> components) {
  return jcenteredline(asArray(Component.class, components));
}
static String send(String bot, String text, Object... args) {
  return sendToLocalBot(bot, text, args);
}

static String send(int port, String text, Object... args) {
  return sendToLocalBot(port, text, args);
}
static JComponent showControls_controls;

static void showControls(final JComponent controls) {
  { swingAndWait(new Runnable() { public void run() { try { 
    hideControls();
    JComponent _controls = withMargin(controls);
    showControls_controls = _controls;
    addToConsole2(showControls_controls);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "hideControls();\r\n    JComponent _controls = withMargin(controls);\r\n    showContr..."; }}); }
}
static boolean isMainProgram() {
  return creator() == null;
}
static String h3(String s, Object... params) {
  return tag("h3", s, params) + "\n";
}
static java.util.Timer timerOnce(long delay, final Object r) {
  final java.util.Timer timer = new java.util.Timer(true);
  timer.schedule(timerTask(r, timer), delay);
  return timer;
}

static volatile boolean sleep_noSleep;

static void sleep(long ms) {
  ping();
  if (ms < 0) return;
  // allow spin locks
  if (isAWTThread() && ms > 100) throw fail("Should not sleep on AWT thread");
  try {
    Thread.sleep(ms);
  } catch (Exception e) { throw new RuntimeException(e); }
}

static void sleep() { try {
  if (sleep_noSleep) throw fail("nosleep");
  print("Sleeping.");
  sleepQuietly();
} catch (Exception __e) { throw rethrow(__e); } }
static Object load(String varName) {
  readLocally(varName);
  return get(mc(), varName);
}

static Object load(String progID, String varName) {
  readLocally(progID, varName);
  return get(mc(), varName);
}
static <A> List<A> synchroList() {
  return Collections.synchronizedList(new ArrayList<A>());
}

static <A> List<A> synchroList(List<A> l) {
  return Collections.synchronizedList(l);
}

static long toMS(double seconds) {
  return (long) (seconds*1000);
}
static int makeBot(String greeting) {
  return makeAndroid3(greeting).port;
}

static Android3 makeBot(Android3 a) {
  makeAndroid3(a);
  return a;
}

static Android3 makeBot(String greeting, Object responder) {
  Android3 a = new Android3(greeting);
  a.responder = makeResponder(responder);
  makeBot(a);
  return a;
}

static Android3 makeBot() {
  return makeAndroid3(getProgramTitle() + ".");
}
static String infoBoxAndReturn(String s) {
  infoBox(s);
  return s;
}
static List persistentList(String name) {
  return l_persistentList(name);
}

static List persistentList(String name, List defaultList) {
  return l_persistentList(name, defaultList);
}
static <A> boolean setAdd(Collection<A> c, A a) {
  if (c.contains(a)) return false;
  c.add(a);
  return true;
}
static <B, A extends B> A addAndReturn(Collection<B> c, A a) {
  if (c != null) c.add(a);
  return a;
}
static String loadJQuery() {
  return "<script src=\"https://code.jquery.com/jquery-1.10.2.js\"></script>";
}
static Map<Thread, Boolean> _registerThread_threads = Collections.synchronizedMap(new WeakHashMap());

static Thread _registerThread(Thread t) {
  _registerThread_threads.put(t, true);
  return t;
}

static void _registerThread() { _registerThread(Thread.currentThread()); }
static boolean nempty(Collection c) {
  return !isEmpty(c);
}

static boolean nempty(CharSequence s) {
  return !isEmpty(s);
}

static boolean nempty(Object[] o) {
  return !isEmpty(o);
}

static boolean nempty(Map m) {
  return !isEmpty(m);
}

static boolean nempty(Iterator i) {
  return i != null && i.hasNext();
}
static <A> A setAndSave(String var, A value) {
  set(mc(), var, value);
  save(var);
  return value;
}
static String hbody(Object contents, Object... params) {
  return tag("body", contents, params);
}
static void sendOptInNewThread(final String bot, final String text, final Object... args) {
  { Thread _t_1 = new Thread() {
public void run() { try { sendOpt(bot, text, args); } catch (Throwable __e) { printStackTrace2(__e); } }
};
startThread(_t_1); }
}
static void awtEvery(JComponent component, long delay, Object r) {
  swingEvery(component, delay, r);
}

static void awtEvery(JComponent component, long delay, long firstDelay, Object r) {
  swingEvery(component, delay, firstDelay, r);
}

static void awtEvery(RootPaneContainer frame, long delay, Object r) {
  swingEvery(frame, delay, r);
}
static int parseInt(String s) {
  return empty(s) ? 0 : Integer.parseInt(s);
}
static volatile StringBuffer local_log = new StringBuffer(); // not redirected
static volatile StringBuffer print_log = local_log; // might be redirected, e.g. to main bot

// in bytes - will cut to half that
static volatile int print_log_max = 1024*1024;
static volatile int local_log_max = 100*1024;
//static int print_maxLineLength = 0; // 0 = unset

static boolean print_silent; // total mute if set

static Object print_byThread_lock = new Object();
static volatile ThreadLocal<F1<String, Boolean>> print_byThread; // special handling by thread

static void print() {
  print("");
}

// slightly overblown signature to return original object...
static <A> A print(A o) {
  ping();
  if (print_silent) return o;
  String s = String.valueOf(o) + "\n";
  print_noNewLine(s);
  return o;
}

static void print_noNewLine(String s) {
  if (print_byThread != null) {
    F1<String, Boolean> f = print_byThread.get();
    if (f != null)
      if (isFalse(f.get(s))) return;
  }

  print_raw(s);
}

static void print_raw(String s) {
  s = fixNewLines(s);
  // TODO if (print_maxLineLength != 0)
  StringBuffer loc = local_log;
  StringBuffer buf = print_log;
  int loc_max = print_log_max;
  if (buf != loc && buf != null) {
    print_append(buf, s, print_log_max);
    loc_max = local_log_max;
  }
  if (loc != null) 
    print_append(loc, s, loc_max);
  System.out.print(s);
}

static void print(long l) {
  print(String.valueOf(l));
}

static void print(char c) {
  print(String.valueOf(c));
}

static void print_append(StringBuffer buf, String s, int max) {
  synchronized(buf) {
    buf.append(s);
    max /= 2;
    if (buf.length() > max) try {
      int newLength = max/2;
      int ofs = buf.length()-newLength;
      String newString = buf.substring(ofs);
      buf.setLength(0);
      buf.append("[...] ").append(newString);
    } catch (Exception e) {
      buf.setLength(0);
    }
  }
}
static void startChromeApp(String url) {
  String exe = isWindows() ? ("\"C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe\"")
    : "chromium-browser"; 
  nohup(exe + " --app=" + url);
}
static String hjavascript(String script) {
  return tag("script", script, "type", "text/javascript");
}
static String hhtml(Object contents) {
  return containerTag("html", contents);
}
static String htitle(String title) {
  return tag("title", htmlencode(title));
}
static Object first(Object list) {
  return empty((List) list) ? null : ((List) list).get(0);
}

static <A> A first(List<A> list) {
  return empty(list) ? null : list.get(0);
}

static <A> A first(A[] bla) {
  return bla == null || bla.length == 0 ? null : bla[0];
}

static <A> A first(Iterable<A> i) {
  if (i == null) return null;
  Iterator<A> it = i.iterator();
  return it.hasNext() ? it.next() : null;
}

static Character first(String s) { return empty(s) ? null : s.charAt(0); }




static String htag(String tag) {
  return htag(tag, "");
}

static String htag(String tag, Object contents, Object... params) {
  String openingTag = hopeningTag(tag, params);
  String s = str(contents);
  if (empty(s))
    return dropLast(openingTag) + "/>";
  return openingTag + s + "</" + tag + ">";
}
static Object[] asArray(List l) {
  return toObjectArray(l);
}

static <A> A[] asArray(Class<A> type, List l) {
  return (A[]) l.toArray((Object[]) Array.newInstance(type, l.size()));
}
// An "Android" is a program that accepts text questions (on console or TCP) and outputs one response text per question

static boolean makeAndroid3_disable; // disable all android making

static class Android3 {
  String greeting;
  boolean publicOverride; // optionally set this in client
  int startPort = 5000; // optionally set this in client
  Responder responder;
  boolean console = true;
  boolean quiet; // no messages on console
  boolean daemon = false;
  boolean incomingSilent = false;
  int incomingPrintLimit = 200;
  boolean useMultiPort = true;
  boolean recordHistory;
  boolean verbose;
  int answerPrintLimit = 500;
  boolean newLineAboveAnswer, newLineBelowAnswer;
  
  // set by system
  int port;
  long vport;
  DialogHandler handler;
  ServerSocket server;
  
  Android3(String greeting) {
  this.greeting = greeting;}
  Android3() {}
  
  synchronized void dispose() {
    if (server != null) {
      try {
        server.close();
      } catch (IOException e) {
        print("[internal] " + e);
      }
      server = null;
    }
    if (vport != 0) try {
      print("Disposing " + this);
      removeFromMultiPort(vport);
      vport = 0;
    } catch (Throwable __e) { printStackTrace2(__e); }
  }
  
  public String toString() { return "Bot: " + greeting + " [vport " + vport + "]"; }
}

static abstract class Responder {
  abstract String answer(String s, List<String> history);
}

static Android3 makeAndroid3(final String greeting) {
  return makeAndroid3(new Android3(greeting));
}

static Android3 makeAndroid3(final String greeting, Responder responder) {
  Android3 android = new Android3(greeting);
  android.responder = responder;
  return makeAndroid3(android);
}

static Android3 makeAndroid3(final Android3 a) {
  if (makeAndroid3_disable) return a;
  
  if (a.responder == null)
    a.responder = new Responder() {
      String answer(String s, List<String> history) {
        return callStaticAnswerMethod(s, history);
      }
    };
    
  if (!a.quiet)
    print("[bot] " + a.greeting);
  
  if (a.console && makeAndroid3_consoleInUse() && !readLine_noReadLine) a.console = false;
  
  record(a);
  
  if (a.useMultiPort)
    a.vport = addToMultiPort(a.greeting,
      makeAndroid3_verboseResponder(a));
      
  if (a.console)
    makeAndroid3_handleConsole(a);

  if (a.useMultiPort) return a;

  a.handler = makeAndroid3_makeDialogHandler(a);
  if (a.quiet) startDialogServer_quiet.set(true);
  try {
    a.port = a.daemon
      ? startDialogServerOnPortAboveDaemon(a.startPort, a.handler)
      : startDialogServerOnPortAbove(a.startPort, a.handler);
  } finally {
    startDialogServer_quiet.set(null);
  }
  a.server = startDialogServer_serverSocket;

  return a;
}

static void makeAndroid3_handleConsole(final Android3 a) {
  // Console handling stuff
  if (!a.quiet)
    print("You may also type on this console.");
  { Thread _t_2 = new Thread() {
public void run() { try {
    List<String> history = new ArrayList();
    while (licensed()) {
      String line;
      try {
        line = readLine();
      } catch (Throwable e) {
        print(getInnerMessage(e));
        break;
      }
      if (line == null) break;
      /*if (eq(line, "bye")) {
        print("> bye stranger");
        history = new ArrayList<S>();
      } else*/ {
        history.add(line);
        history.add(makeAndroid3_getAnswer(line, history, a)); // prints answer on console too
      }
    }
  } catch (Throwable __e) { printStackTrace2(__e); } }
};
startThread(_t_2); }
}

static DialogHandler makeAndroid3_makeDialogHandler(final Android3 a) {
  return new DialogHandler() {
public void run(final DialogIO io) {
    if (!a.publicOverride && !(publicCommOn() || io.isLocalConnection())) {
      io.sendLine("Sorry, not allowed");
      return;
    }
    
    String dialogID = randomID(8);
    
    io.sendLine(a.greeting + " / Your ID: " + dialogID);
    
    List<String> history = new ArrayList();
    
    while (io.isStillConnected()) {
      if (io.waitForLine()) {
        final String line = io.readLineNoBlock();
        String s = dialogID + " at " + now() + ": " + quote(line);
        if (!a.incomingSilent)
          print(shorten(s, a.incomingPrintLimit));
        if (eq(line, "bye")) {
          io.sendLine("bye stranger");
          return;
        }
        Matches m = new Matches();
        if (a.recordHistory)
          history.add(line);
        String answer;
        if (match3("this is a continuation of talk *", s, m)
          || match3("hello bot! this is a continuation of talk *", s, m)) {
          dialogID = unquote(m.m[0]);
          answer = "ok";
        } else try {
          makeAndroid3_io.set(io);
          answer = makeAndroid3_getAnswer(line, history, a);
        } finally {
          makeAndroid3_io.set(null);
        }
        if (a.recordHistory)
          history.add(answer);
        io.sendLine(answer);
        //appendToLog(logFile, s);
      }
    }
  }};
}

static String makeAndroid3_getAnswer(String line, List<String> history, Android3 a) {
  String answer, originalAnswer;
  try {
    originalAnswer = a.responder.answer(line, history);
    answer = makeAndroid3_fallback(line, history, originalAnswer);
  } catch (Throwable e) {
    e = getInnerException(e);
    printStackTrace(e);
    originalAnswer = answer = e.toString();
  }
  if (!a.incomingSilent) {
    if (originalAnswer == null) originalAnswer = "?";
    if (a.newLineAboveAnswer) print();
    print(">" + dropFirst(indentx(2, shorten(rtrim(originalAnswer), a.answerPrintLimit))));
    if (a.newLineBelowAnswer) print();
  }
  return answer;
}

static String makeAndroid3_fallback(String s, List<String> history, String answer) {
  // Now we only do the safe thing instead of VM inspection - give out our process ID
  if (answer == null && match3("what is your pid", s))
    return getPID();
    
  if (answer == null && match3("what is your program id", s)) // should be fairly safe, right?
    return getProgramID();
    
  if (match3("get injection id", s))
    return getInjectionID();
    
  if (answer == null) answer = "?";
  if (answer.indexOf('\n') >= 0 || answer.indexOf('\r') >= 0)
    answer = quote(answer);
  return answer;
}

static boolean makeAndroid3_consoleInUse() {
  for (Object o : record_list)
    if (o instanceof Android3 && ((Android3) o).console)
      return true;
  return false;
}

static Responder makeAndroid3_verboseResponder(final Android3 a) {
  return new Responder() {
    String answer(String s, List<String> history) {
      if (a.verbose)
        print("> " + shorten(s, a.incomingPrintLimit));
      String answer = a.responder.answer(s, history);
      if (a.verbose)
        print("< " + shorten(answer, a.incomingPrintLimit));
      return answer;
    }
  };
}

static ThreadLocal<DialogIO> makeAndroid3_io = new ThreadLocal();

static Android3 makeAndroid3() {
  return makeAndroid3(getProgramTitle() + ".");
}
static Class run(String progID, String... args) {
  Class main = hotwire(progID);
  callMain(main, args);
  return main;
}
static JPanel jFullCenter(Component c) {
  JPanel panel = new JPanel(new GridBagLayout());
  panel.add(c);
  return panel;
}
static String getStackTrace(Throwable throwable) {
  StringWriter writer = new StringWriter();
  throwable.printStackTrace(new PrintWriter(writer));
  return writer.toString();
}
static Class mc() {
  return main.class;
}
static int newFindBot_botVM;

static synchronized DialogIO newFindBot(String name) {
  if (newFindBot_botVM == 0) {
    print("Looking for Bot VM.");
    List<ProgramScan.Program> botVMs = quickBotScan("This is a JavaX VM. Bot VM.");
    if (!botVMs.isEmpty()) {
      newFindBot_botVM = botVMs.get(0).port;
      print("Bot VM is at port " + newFindBot_botVM + ".");
    }
  }
  
  if (newFindBot_botVM != 0) {
    DialogIO io = talkTo(newFindBot_botVM);
    String q = format("has bot *", name);
    String s = io.ask(q);
    //print(format("Answer of Bot VM to *: *", q, s));
    
    if (match("yes", s)) {
      io = talkToSubBot(name, io);
      call(io, "pushback", "?"); // put some hello string in (yes, this should be improved.)
      return io;
    }
  }
  
  return findBot(name);
}
public static boolean isWindows() {
  return System.getProperty("os.name").contains("Windows");
}
// TODO: test if android complains about this
static boolean isAWTThread() {
  if (isAndroid()) return false;
  if (isHeadless()) return false;
  return isAWTThread_awt();
}

static boolean isAWTThread_awt() {
  return SwingUtilities.isEventDispatchThread();
}
static String getProgramTitle() {
  return getProgramName();
}
static void hideControls() {
  { swingAndWait(new Runnable() { public void run() { try { 
    removeFromConsole2(showControls_controls);
    showControls_controls = null;
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "removeFromConsole2(showControls_controls);\r\n    showControls_controls = null;"; }}); }
}
static int withMargin_defaultWidth = 6;

static JPanel withMargin(Component c) {
  JPanel p = new JPanel(new BorderLayout());
  int w = withMargin_defaultWidth;
  p.setBorder(BorderFactory.createEmptyBorder(w, w, w, w));
  p.add(c);
  return p;
}
static JButton setButtonImage(BufferedImage img, JButton btn) {
  btn.setIcon(imageIcon(img));
  return btn;
}
static boolean isFalse(Object o) {
  return eq(false, o);
}









static class MyHTTPD extends NanoWebSocketServer {
  MyHTTPD(int port, Object factory) {
    super(port, webSocketFactory(factory));
  }

  public Response serve(String uri, Method method,
    Map<String, String> header, Map<String, String> parms,
    Map<String, String> files) {
    String remoteAddr  = header.get("remote-addr");
    print("Serving URI: " + quote(uri) + " to: " + remoteAddr);
    
    /*if (nempty(remoteAddr) &&
      isTrue(callOpt(mc(), "isBlockedIP", remoteAddr))) {
      print("BLOCKED IP.");
      ret serve404();
    }*/
    
    try {
      Response response = (Response) ( callOpt(getMainClass(), "serve", uri, method, header, parms, files));
      if (response != null) return response;
      String html = callHtmlMethod(getMainClass(), uri, parms);
      if (html != null)
        return serveHTML(html);
      return serve404();
    } catch (Throwable e) {
      printStackTrace(e);
      return serveHTML("ERROR.");
    }
  }
}

static MyHTTPD serveHttpWithWebsockets_server;
static int serveHttpWithWebsockets_port = 8888;

static TreeSet<String> serveHttpWithWebsockets_peers = new TreeSet();

// factory: func(NanoHTTPD.IHTTPSession) -> WebSocket
static int serveHttpWithWebsockets(int port, Object factory) { try {
  serveHttpWithWebsockets_port = port;
  serveHttpWithWebsockets_server = new MyHTTPD(port, factory);
  serveHttpWithWebsockets_server.start();
  return serveHttpWithWebsockets_port();
} catch (Exception __e) { throw rethrow(__e); } }

// serve on random port, return port number used
static int serveHttpWithWebsockets(Object factory) {
  serveHttpWithWebsockets(0, factory);
  return serveHttpWithWebsockets_port();
}

static int serveHttpWithWebsockets_port() {
  return serveHttpWithWebsockets_server == null ? 0 : serveHttpWithWebsockets_server.getListeningPort();
}

static void cleanMeUp_serveHttpWithWebsockets() {
  if (serveHttpWithWebsockets_server != null) {
    serveHttpWithWebsockets_server.stop();
    serveHttpWithWebsockets_server = null;
  }
}
static RuntimeException fail() { throw new RuntimeException("fail"); }
static RuntimeException fail(Throwable e) { throw asRuntimeException(e); }
static RuntimeException fail(Object msg) { throw new RuntimeException(String.valueOf(msg)); }
static RuntimeException fail(String msg) { throw new RuntimeException(unnull(msg)); }
static RuntimeException fail(String msg, Throwable innerException) { throw new RuntimeException(msg, innerException); }

static String getType(Object o) {
  return getClassName(o);
}
static String fixNewLines(String s) {
  return s.replace("\r\n", "\n").replace("\r", "\n");
}
static TimerTask timerTask(final Object r, final java.util.Timer timer) {
  return new TimerTask() {
    public void run() {
      if (!licensed())
        timer.cancel();
      else
        pcallF(r);
    }
  };
}
static volatile boolean ping_pauseAll;
static int ping_sleep = 100; // poll pauseAll flag every 100
static volatile boolean ping_anyActions;
static Map<Thread, Object> ping_actions = synchroMap(new WeakHashMap());

// always returns true
static boolean ping() {
  if (ping_pauseAll || ping_anyActions) ping_impl();
  return true;
}

// returns true when it slept
static boolean ping_impl() { try {
  if (ping_pauseAll && !isAWTThread()) {
    do
      Thread.sleep(ping_sleep);
    while (ping_pauseAll);
    return true;
  }
  
  if (ping_anyActions) {
    Object action;
    synchronized(ping_actions) {
      action = ping_actions.get(currentThread());
      if (action instanceof Runnable)
        ping_actions.remove(currentThread());
      if (ping_actions.isEmpty()) ping_anyActions = false;
    }
    
    if (action instanceof Runnable)
      ((Runnable) action).run();
    else if (eq(action, "cancelled"))
      throw fail("Thread cancelled.");
  }
  
  return false;
} catch (Exception __e) { throw rethrow(__e); } }
static void save(String varName) {
  saveLocally(varName);
}

static void save(String progID, String varName) {
  saveLocally(progID, varName);
}
static JWindow infoBox(String text) {
  return infoMessage(text);
}

static JWindow infoBox(String text, double seconds) {
  return infoMessage(text, seconds);
}

static JWindow infoBox(Throwable e) {
  return infoMessage(e);
}
static int hstackWithSpacing_spacing = 10;

// first part can be spacing value
static JPanel hstackWithSpacing(Object... parts) {
  int spacing = hstackWithSpacing_spacing;
  int i = 0;
  if (first(parts) instanceof Integer) {
    spacing = toInt(first(parts));
    ++i;
  }
  JPanel panel = new JPanel(new GridBagLayout());
  GridBagConstraints gbc = new GridBagConstraints();
  gbc.weighty = 1;
  gbc.fill = GridBagConstraints.VERTICAL;
  gbc.gridheight = GridBagConstraints.REMAINDER;
  for (; i < l(parts); i++) {
    if (i != 0)
      panel.add(Box.createRigidArea(new Dimension(spacing, 0)), gbc);
    panel.add(wrapForSmartAdd(parts[i]), gbc);
  }
  gbc.weightx = 1;
  panel.add(Box.createRigidArea(new Dimension(0, 0)), gbc);
  return panel;
}
static <A> ArrayList<A> litlist(A... a) {
  return new ArrayList<A>(Arrays.asList(a));
}
static Object sleepQuietly_monitor = new Object();

static void sleepQuietly() { try {
  assertFalse(isAWTThread());
  synchronized(sleepQuietly_monitor) { sleepQuietly_monitor.wait(); }
} catch (Exception __e) { throw rethrow(__e); } }
// get purpose 1: access a list/array/map (safer version of x.get(y))

static <A> A get(List<A> l, int idx) {
  return l != null && idx >= 0 && idx < l(l) ? l.get(idx) : null;
}

// seems to conflict with other signatures
/*static <A, B> B get(Map<A, B> map, A key) {
  ret map != null ? map.get(key) : null;
}*/

static <A> A get(A[] l, int idx) {
  return idx >= 0 && idx < l(l) ? l[idx] : null;
}

// default to false
static boolean get(boolean[] l, int idx) {
  return idx >= 0 && idx < l(l) ? l[idx] : false;
}

// get purpose 2: access a field by reflection or a map

static Object get(Object o, String field) {
  try {
    if (o instanceof Class) return get((Class) o, field);
    
    if (o instanceof Map)
      return ((Map) o).get(field);
      
    Field f = getOpt_findField(o.getClass(), field);
    if (f != null) {
      f.setAccessible(true);
      return f.get(o);
    }
      
    
      if (o instanceof DynamicObject)
        return ((DynamicObject) o).fieldValues.get(field);
    
  } catch (Exception e) {
    throw asRuntimeException(e);
  }
  throw new RuntimeException("Field '" + field + "' not found in " + o.getClass().getName());
}

static Object get_raw(Object o, String field) {
  try {
    Field f = get_findField(o.getClass(), field);
    f.setAccessible(true);
    return f.get(o);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static Object get(Class c, String field) {
  try {
    Field f = get_findStaticField(c, field);
    f.setAccessible(true);
    return f.get(null);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static Field get_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Static field '" + field + "' not found in " + c.getName());
}

static Field get_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}

static String structureForUser(Object o) {
  return struct_noStringSharing(o);
}
static void readLocally(String progID, String varNames) {
  readLocally2(mc(), progID, varNames);
}

static void readLocally(String varNames) {
  readLocally2(mc(), programID(), varNames);
}

static void readLocally2(Object obj, String varNames) {
  readLocally2(obj, programID(), varNames);
}

static int readLocally_stringLength;

static ThreadLocal<Boolean> readLocally2_allDynamic = new ThreadLocal();

// read a string variable from standard storage
// does not overwrite variable contents if there is no file
static void readLocally2(Object obj, String progID, String varNames) { try {
  boolean allDynamic = isTrue(getAndClearThreadLocal(readLocally2_allDynamic));
  for (String variableName : javaTokC(varNames)) {
    File textFile = new File(programDir(progID), variableName + ".text");
    
    String value = loadTextFile(textFile);
    if (value != null)
      set(main.class, variableName, value);
    else {
      File structureFile = new File(programDir(progID), variableName + ".structure");
      value = loadTextFile(structureFile);
      
      if (value == null) {
        File structureGZFile = new File(programDir(progID), variableName + ".structure.gz");
        if (!structureGZFile.isFile()) return;
        //value = loadGZTextFile(structureGZFile);
        InputStream fis = new FileInputStream(structureGZFile);
        try {
          GZIPInputStream gis = new GZIPInputStream(fis);
          InputStreamReader reader = new InputStreamReader(gis, "UTF-8");
          BufferedReader bufferedReader = new BufferedReader(reader);
          //O o = unstructure_reader(bufferedReader);
          Object o = unstructure_tok(javaTokC_noMLS_onReader(bufferedReader), allDynamic, null);
          readLocally_set(obj, variableName, o);
        } finally {
          fis.close();
        }
        return;
      }
      
      readLocally_stringLength = l(value);
      if (nempty(value))
        readLocally_set(obj, variableName, allDynamic ? safeUnstructure(value) : unstructure(value));
    }
  }
} catch (Exception __e) { throw rethrow(__e); } }

static void readLocally_set(Object c, String varName, Object value) {
  Object oldValue = get(c, varName);
  if (oldValue instanceof List && !(oldValue instanceof ArrayList) && value != null) {
    // Assume it's a synchroList.
    value = synchroList((List) value);
  }
  set(c, varName, value);
}

static boolean nohup_debug;
static boolean nohup_noSlashB;

public static File nohup(String cmd) { try {
  File outFile = File.createTempFile("nohup_" + nohup_sanitize(cmd) + "_", ".out");
  nohup(cmd, outFile, false);
  return outFile;
} catch (Exception __e) { throw rethrow(__e); } }

/** outFile takes stdout and stderr. */
public static void nohup(String cmd, File outFile, boolean append) { try {
  String command = nohup_makeNohupCommand(cmd, outFile, append);

  File scriptFile = File.createTempFile("_realnohup", isWindows() ? ".bat" : "");
  System.out.println("[Nohup] " + command);
  try {
    if (nohup_debug)
      print("[nohup] Script file: " + scriptFile.getPath());
    saveTextFile(scriptFile.getPath(), command);
    String[] command2;
    if (isWindows())
      if (nohup_noSlashB)
        command2 = new String[] {"cmd", "/c", "start", scriptFile.getPath() };
      else
        command2 = new String[] {"cmd", "/c", "start", "/b", scriptFile.getPath() };
    else
      command2 = new String[] {"/bin/bash", scriptFile.getPath() };
      
    printStruct("[nohup] " , command2);
    Process process = Runtime.getRuntime().exec(command2);
    try {
      process.waitFor();
    } catch (InterruptedException e) {
      throw new RuntimeException(e);
    }
    int value = process.exitValue();
    //System.out.println("exit value: " + value);
  } finally {
    if (!isWindows())
      scriptFile.delete();
  }
} catch (Exception __e) { throw rethrow(__e); } }

public static String nohup_makeNohupCommand(String cmd, File outFile, boolean append) {
  mkdirsForFile(outFile);

  String command;
  if (isWindows())
    command = cmd + (append ? " >>" : " >") + winQuote(outFile.getPath()) + " 2>&1";
  else
    command = "nohup " + cmd + (append ? " >>" : " >") + bashQuote(outFile.getPath()) + " 2>&1 &";
  return command;
}

static void swingEvery(JComponent component, long delay, Object r) {
  installTimer(component, delay, r);
}

static void swingEvery(JComponent component, long delay, long firstDelay, Object r) {
  installTimer(component, r, delay, firstDelay);
}

static void swingEvery(RootPaneContainer frame, long delay, Object r) {
  installTimer(frame, delay, r);
}
static WeakReference<Class> creator_class;

static Class creator() {
  return creator_class == null ? null : creator_class.get();
}
static void set(Object o, String field, Object value) {
  if (o instanceof Class) set((Class) o, field, value);
  else try {
    Field f = set_findField(o.getClass(), field);
    smartSet(f, o, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static void set(Class c, String field, Object value) {
  try {
    Field f = set_findStaticField(c, field);
    smartSet(f, null, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}
  
static Field set_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Static field '" + field + "' not found in " + c.getName());
}

static Field set_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}
static boolean isEmpty(Collection c) {
  return c == null || c.isEmpty();
}

static boolean isEmpty(CharSequence s) {
  return s == null || s.length() == 0;
}

static boolean isEmpty(Object[] a) {
  return a == null || a.length == 0;
}

static boolean isEmpty(Map map) {
  return map == null || map.isEmpty();
}
static int l(Object[] a) { return a == null ? 0 : a.length; }
static int l(boolean[] a) { return a == null ? 0 : a.length; }
static int l(byte[] a) { return a == null ? 0 : a.length; }
static int l(int[] a) { return a == null ? 0 : a.length; }
static int l(float[] a) { return a == null ? 0 : a.length; }
static int l(char[] a) { return a == null ? 0 : a.length; }
static int l(Collection c) { return c == null ? 0 : c.size(); }
static int l(Map m) { return m == null ? 0 : m.size(); }
static int l(CharSequence s) { return s == null ? 0 : s.length(); } static long l(File f) { return f == null ? 0 : f.length(); }

static int l(Object o) {
  return o instanceof String ? l((String) o)
    : o instanceof Map ? l((Map) o)
    : l((Collection) o); // incomplete
}




  // automagically encode a whole map (keys+values)
  static Map htmlencode(Map o) {
    HashMap bla = new HashMap();
    for (Object key : keys(o)) {
      Object value = o.get(key);
      bla.put(htmlencode(key), htmlencode(value));
    }
    return bla;
  }

  static String htmlencode(Object o) {
    return htmlencode(string(o));
  }
  
  static String htmlencode(String s) {
    if (s == null) return "";
    StringBuilder out = new StringBuilder(Math.max(16, s.length()));
    for (int i = 0; i < s.length(); i++) {
        char c = s.charAt(i);
        if (c > 127 || c == '"' || c == '<' || c == '>' || c == '&') {
            out.append("&#");
            out.append((int) c);
            out.append(';');
        } else {
            out.append(c);
        }
    }
    return out.toString();
  }
static Object swing(Object f) {
  return swingAndWait(f);
}

static <A> A swing(F0<A> f) {
  return (A) swingAndWait(f);
}
static void addToConsole2(Component toAdd) {
  JFrame frame = consoleFrame();
  if (frame == null) return;
  Container cp = frame.getContentPane();
  Container cp2 = (Container) getCenterComponent(cp);
  replaceCenterComponent(cp, centerAndSouth(cp2, toAdd));
  validateFrame(frame);
}
static String makeResponder_callAnswerMethod(Object bot, String s, List<String> history) {
  String answer = (String) callOpt(bot, "answer", s, history);
  if (answer == null)
    answer = (String) callOpt(bot, "answer", s);
  return answer;
}

static Responder makeResponder(final Object bot) {
  if (bot instanceof Responder) return (Responder) bot;
  
  if (bot instanceof String) {
    String f = (String) ( bot);
    return new Responder() {
      String answer(String s, List<String> history) {
        String answer = (String) callOptMC((String) bot, s, history);
        if (answer == null)
          answer = (String) callOptMC((String) bot, s);
        return answer;
      }
    };
  }
  
  return new Responder() {
    String answer(String s, List<String> history) {
      return makeResponder_callAnswerMethod(bot, s, history);
    }
  };
}
static String sendToLocalBot(String bot, String text, Object... args) {
  text = format3(text, args);
  
  DialogIO channel = findBot(bot);
  if (channel == null)
    throw fail(quote(bot) + " not found");
  try {
    channel.readLine();
    print(bot + "> " + shorten(text, 80));
    channel.sendLine(text);
    String s = channel.readLine();
    print(bot + "< " + shorten(s, 80));
    return s;
  } catch (Throwable e) {
    e.printStackTrace();
    return null;
  } finally {
    channel.close();
  }
}

static String sendToLocalBot(int port, String text, Object... args) {
  text = format3(text, args);
  DialogIO channel = talkTo(port);
  try {
    channel.readLine();
    print(port + "> " + shorten(text, 80));
    channel.sendLine(text);
    String s = channel.readLine();
    print(port + "< " + shorten(s, 80));
    return s;
  } catch (Throwable e) {
    e.printStackTrace();
    return null;
  } finally {
    if (channel != null)
      channel.close();
  }
}
static List l_persistentList(String name) {
  return l_persistentLister().getList(name);
}

static List l_persistentList(String name, List defaultList) {
  return l_persistentLister().getList(name, defaultList);
}
static Object pcallFunction(Object f, Object... args) {
  try { return callFunction(f, args); } catch (Throwable __e) { printStackTrace2(__e); }
  return null;
}
static String sendToLocalBotOpt(String bot, String text, Object... args) {
  if (bot == null) return null;
  text = format(text, args);
  DialogIO channel = findBot(bot);
  if (channel == null) {
    print(quote(bot) + " not found, skipping send: " + quote(text));
    return null;
  }
  try {
    channel.readLine();
    print(shorten(bot + "> " + text, 200));
    channel.sendLine(text);
    String s = channel.readLine();
    print(shorten(bot + "< " + s, 200));
    return s;
  } catch (Throwable e) {
    e.printStackTrace();
    return null;
  } finally {
    channel.close();
  }
}
// action can be Runnable or a function name
static JButton newButton(final String text, final Object action) {
  return swing(new F0<JButton>() { JButton get() { try { 
    JButton btn = new JButton(text);
    if (action != null)
      btn.addActionListener(actionListener(action));
    return btn;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JButton btn = new JButton(text);\r\n    if (action != null)\r\n      btn.addActionLi..."; }});
}
static String containerTag(String tag) { return containerTag(tag, ""); }

static String containerTag(String tag, Object contents, Object... params) {
  String openingTag = hopeningTag(tag, params);
  String s = str(contents);
  return openingTag + s + "</" + tag + ">";
}


static String struct_noStringSharing(Object o) {
  structure_Data d = new structure_Data();
  d.noStringSharing = true;
  return structure(o, d);
}
static JFrame consoleFrame() {
  return (JFrame) getOpt(get(getJavaX(), "console"), "frame");
}
static Object callOptMC(String method, Object... args) {
  return callOpt(mc(), method, args);
}
static Object callFunction(Object f, Object... args) {
  return callF(f, args);
}
static String nohup_sanitize(String s) {
  return takeFirst(50, s.replaceAll("[^a-zA-Z0-9\\-_]", ""));
}

static String[] dropLast(String[] a, int n) {
  n = Math.min(n, a.length);
  String[] b = new String[a.length-n];
  System.arraycopy(a, 0, b, 0, b.length);
  return b;
}

static <A> List<A> dropLast(List<A> l) {
  return subList(l, 0, l(l)-1);
}

static <A> List<A> dropLast(int n, List<A> l) {
  return subList(l, 0, l(l)-n);
}

static <A> List<A> dropLast(Iterable<A> l) {
  return dropLast(asList(l));
}

static String dropLast(String s) {
  return substring(s, 0, l(s)-1);
}
static NanoHTTPD.Response serveHTML(String text) {
  return NanoHTTPD.newFixedLengthResponse(String.valueOf(text));
}

static NanoHTTPD.Response serveHTML(StringBuilder buf) {
  return NanoHTTPD.newFixedLengthResponse(buf.toString());
}

static NanoHTTPD.Response serveHTML(StringBuffer buf) {
  return NanoHTTPD.newFixedLengthResponse(buf.toString());
}
static int shorten_default = 100;

static String shorten(String s) { return shorten(s, shorten_default); }

static String shorten(String s, int max) {
  if (s == null) return "";
  if (max < 0) return s;
  return s.length() <= max ? s : s.substring(0, Math.min(s.length(), max)) + "...";
}

static String shorten(int max, String s) { return shorten(s, max); }
static void replaceCenterComponent(Container container, Component c) {
  Component old = getCenterComponent(container);
  if (old != null)
    container.remove(old);
  container.add(c, BorderLayout.CENTER);
}
static List<Object> record_list = synchroList();

static void record(Object o) {
  record_list.add(o);
}
/** possibly improvable */
static String bashQuote(String text) {
  if (text == null) return null;
  return "\"" + text
    .replace("\\", "\\\\")
    .replace("\"", "\\\"")
    .replace("\n", "\\n")
    .replace("\r", "\\r") + "\"";
}

static String bashQuote(File f) {
  return bashQuote(f.getAbsolutePath());
}
static void swingAndWait(Runnable r) { try {
  if (isAWTThread())
    r.run();
  else
    EventQueue.invokeAndWait(r);
} catch (Exception __e) { throw rethrow(__e); } }

static Object swingAndWait(final Object f) {
  if (isAWTThread())
    return callF(f);
  else {
    final Var result = new Var();
    swingAndWait(new Runnable() { public void run() { try { 
      result.set(callF(f));
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "result.set(callF(f));"; }});
    return result.get();
  }
}
static boolean infoMessage_alwaysOnTop = true;
static double infoMessage_defaultTime = 5.0;

// automatically switches to AWT thread for you
static JWindow infoMessage(String text) {
  return infoMessage(text, infoMessage_defaultTime);
}

static JWindow infoMessage(final String text, final double seconds) {
  print(text);
  return infoMessage_noprint(text, seconds);
}

static JWindow infoMessage_noprint(String text) {
  return infoMessage_noprint(text, infoMessage_defaultTime);
}

static JWindow infoMessage_noprint(final String text, final double seconds) {
  if (isHeadless()) return null;
  return (JWindow) swingAndWait(new Object() { Object get() { try { 
    JTextArea ta = wrappedTextArea(text);
    int size = 14;
    if (l(text) <= 50) size *= 2;
    else if (l(text) < 100) size = iround(size*1.5);
    ta.setFont(typeWriterFont(size));
    JScrollPane sp = jscroll(ta);
    final JWindow window = showWindow(withMargin(sp));
    window.setSize(300, 150);
    moveToTopRightCorner(window);
    onClick(ta, new Runnable() { public void run() { try {  window.dispose() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "window.dispose()"; }});
    if (infoMessage_alwaysOnTop)
      window.setAlwaysOnTop(true);
    window.setVisible(true);
    disposeWindowAfter(iround(seconds*1000), window);
    return window;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JTextArea ta = wrappedTextArea(text);\r\n    int size = 14;\r\n    if (l(text) <= 50..."; }});
}

static JWindow infoMessage(Throwable e) {
  showConsole();
  printStackTrace(e);
  return infoMessage(str(e));
}
static Thread currentThread() {
  return Thread.currentThread();
}
static void removeFromMultiPort(long vport) {
  if (vport == 0) return;
  for (Object port : getMultiPorts())
    call(port, "removePort", vport);
}
static Object safeUnstructure(String s) {
  return unstructure(s, true);
}
static WebSocketFactory webSocketFactory(final Object factory) {
  if (factory instanceof WebSocketFactory) return ((WebSocketFactory) factory);
  if (factory == null) return null;
  return new WebSocketFactory() {
    public WebSocket openWebSocket(NanoHTTPD.IHTTPSession handshake) {
      return (WebSocket) callF(factory, handshake);
    }
  };
}
static DialogIO talkTo(int port) {
  return talkTo("localhost", port);
}

static int talkTo_defaultTimeout = 10000; // This is the CONNECT timeout
static int talkTo_timeoutForReads = 0; // Timeout waiting for answers (0 = no timeout)

static ThreadLocal<Map<String, DialogIO>> talkTo_byThread = new ThreadLocal();

static DialogIO talkTo(String ip, int port) { try {
  String full = ip + ":" + port;
  Map<String, DialogIO> map = talkTo_byThread.get();
  if (map != null && map.containsKey(full)) return map.get(full);
  
  if (isLocalhost(ip) && port == vmPort()) return talkToThisVM();

  return new talkTo_IO(ip, port);
} catch (Exception __e) { throw rethrow(__e); } }

static class talkTo_IO extends DialogIO { 
  String ip;
  int port;
  Socket s;
  Writer w;
  BufferedReader in;
  
  talkTo_IO(String ip, int port) { try {
  this.port = port;
  this.ip = ip;
    s = new Socket();
    try {
      if (talkTo_timeoutForReads != 0)
        s.setSoTimeout(talkTo_timeoutForReads);
      s.connect(new InetSocketAddress(ip, port), talkTo_defaultTimeout);
    } catch (Throwable e) {
      throw fail("Tried talking to " + ip + ":" + port, e);
    }
  
    w = new OutputStreamWriter(s.getOutputStream(), "UTF-8");
    in = new BufferedReader(new InputStreamReader(s.getInputStream(), "UTF-8"));
  } catch (Exception __e) { throw rethrow(__e); } }
  
  boolean isLocalConnection() {
    return s.getInetAddress().isLoopbackAddress();
  }
  
  boolean isStillConnected() {
    return !(eos || s.isClosed());
  }
  
  void sendLine(String line) { try {
    w.write(line + "\n");
    w.flush();
  } catch (Exception __e) { throw rethrow(__e); } }
  
  String readLineImpl() { try {
    return in.readLine();
  } catch (Exception __e) { throw rethrow(__e); } }
  
  void close() {
    try {
      if (!noClose) s.close();
    } catch (IOException e) {
      // whatever
    }
  }
  
  Socket getSocket() {
    return s;
  }
}
static DialogIO talkToSubBot(final long vport, final DialogIO io) {
  return talkToSubBot(String.valueOf(vport), io);
}

static DialogIO talkToSubBot(final String subBot, final DialogIO io) {
  if (subBot == null) return io;
  return new talkToSubBot_IO(subBot, io);
}

static class talkToSubBot_IO extends DialogIO {
  String subBot;
  DialogIO io;
  
  talkToSubBot_IO(String subBot, DialogIO io) {
  this.io = io;
  this.subBot = subBot;}
  
  // delegate all but sendLine
  boolean isStillConnected() { return io.isStillConnected(); }
  String readLineImpl() { return io.readLineImpl(); }
  boolean isLocalConnection() { return io.isLocalConnection(); }
  Socket getSocket() { return io.getSocket(); }
  void close() { io.close(); }

  void sendLine(String line) {
    io.sendLine(format3("please forward to bot *: *", subBot, line));
  }
}
static Object addToMultiPort_responder;

static long addToMultiPort(final String botName) {
  return addToMultiPort(botName, new Object() {
    public String answer(String s, List<String> history) {
      String answer = (String) ( callOpt(getMainClass(), "answer", s, history));
      if (answer != null) return answer;
      answer = (String) callOpt(getMainClass(), "answer", s);
      if (answer != null) return answer;
      if (match3("get injection id", s))
        return getInjectionID();
      return null;
    }
  });
}

static long addToMultiPort(final String botName, final Object responder) {
  //print(botName);
  addToMultiPort_responder = responder;
  startMultiPort();
  List ports = getMultiPorts();
  if (ports == null) return 0;
  if (ports.isEmpty())
    throw fail("No multiports!");
  if (ports.size() > 1)
    print("Multiple multi-ports. Using last one.");
  Object port = last(ports);
  Object responder2 = new Object() {
    public String answer(String s, List<String> history) {
      if (match3("get injection id", s))
        return getInjectionID();
      if (match3("your name", s))
        return botName;
      return (String) call(responder, "answer", s, history);
    }
  };
  record(responder2);
  return (Long) call(port, "addResponder", botName, responder2);
}

static String programID;

static String getProgramID() {
  return nempty(programID) ? formatSnippetIDOpt(programID) : "?";
}

// TODO: ask JavaX instead
static String getProgramID(Class c) {
  String id = (String) getOpt(c, "programID");
  if (nempty(id))
    return formatSnippetID(id);
  return "?";
}

static String getProgramID(Object o) {
  return getProgramID(getMainClass(o));
}
static String myJavaSource_code;

static String myJavaSource() {
  return myJavaSource_code;
}
static String unnull(String s) {
  return s == null ? "" : s;
}

static <A> List<A> unnull(List<A> l) {
  return l == null ? emptyList() : l;
}

static <A> Iterable<A> unnull(Iterable<A> i) {
  return i == null ? emptyList() : i;
}

static Object[] unnull(Object[] a) {
  return a == null ? new Object[0] : a;
}

static BitSet unnull(BitSet b) {
  return b == null ? new BitSet() : b;
}


static String getInnerMessage(Throwable e) {
  if (e == null) return null;
  return getInnerException(e).getMessage();
}
static Object unstructure(String text) {
  return unstructure(text, false);
}

static Object unstructure(String text, final boolean allDynamic) {
  return unstructure(text, allDynamic, null);
}

static int structure_internStringsLongerThan = 50;

static int unstructure_tokrefs; // stats

abstract static class unstructure_Receiver {
  abstract void set(Object o);
}

// classFinder: func(name) -> class (optional)
static Object unstructure(String text, boolean allDynamic,
  Object classFinder) {
  if (text == null) return null;
  return unstructure_tok(javaTokC_noMLS_iterator(text), allDynamic, classFinder);
}

static Object unstructure_reader(BufferedReader reader) {
  return unstructure_tok(javaTokC_noMLS_onReader(reader), false, null);
}

static Object unstructure_tok(final Producer<String> tok, final boolean allDynamic, final Object classFinder) {
  final boolean debug = unstructure_debug;
  
  final class X {
    int i = -1;
    HashMap<Integer,Object> refs = new HashMap();
    HashMap<Integer,Object> tokrefs = new HashMap();
    HashSet<String> concepts = new HashSet();
    HashMap<String,Class> classesMap = new HashMap();
    List<Runnable> stack = new ArrayList();
    String curT;
    
    // look at current token
    String t() {
      return curT;
    }
    
    // get current token, move to next
    String tpp() {
      String t = curT;
      consume();
      return t;
    }
    
    void parse(final unstructure_Receiver out) {
      String t = t();
      
      int refID = 0;
      if (structure_isMarker(t, 0, l(t))) {
        refID = parseInt(t.substring(1));
        consume();
      }
      final int _refID = refID;
      
      // if (debug) print("parse: " + quote(t));
      
      final int tokIndex = i;  
      parse_inner(refID, tokIndex, new unstructure_Receiver() {
        void set(Object o) {
          if (_refID != 0)
            refs.put(_refID, o);
          if (o != null)
            tokrefs.put(tokIndex, o);
          out.set(o);
        }
      });
    }
    
    void parse_inner(int refID, int tokIndex, final unstructure_Receiver out) {
      String t = t();
      
      // if (debug) print("parse_inner: " + quote(t));
      
      Class c = classesMap.get(t);
      if (c == null) {
        if (t.startsWith("\"")) {
          String s = internIfLongerThan(unquote(tpp()), structure_internStringsLongerThan);
          out.set(s); return;
        }
        
        if (t.startsWith("'")) {
          out.set(unquoteCharacter(tpp())); return;
        }
        if (t.equals("bigint")) {
          out.set(parseBigInt()); return;
        }
        if (t.equals("d")) {
          out.set(parseDouble()); return;
        }
        if (t.equals("fl")) {
          out.set(parseFloat()); return;
        }
        if (t.equals("false") || t.equals("f")) {
          consume(); out.set(false); return;
        }
        if (t.equals("true") || t.equals("t")) {
          consume(); out.set(true); return;
        }
        if (t.equals("-")) {
          consume();
          t = tpp();
          out.set(isLongConstant(t) ? (Object) (-parseLong(t)) : (Object) (-parseInt(t))); return;
        }
        if (isInteger(t) || isLongConstant(t)) {
          consume();
          //if (debug) print("isLongConstant " + quote(t) + " => " + isLongConstant(t));
          if (isLongConstant(t)) {
            out.set(parseLong(t)); return;
          }
          long l = parseLong(t);
          boolean isInt = l == (int) l;
          if (debug)
            print("l=" + l + ", isInt: " + isInt);
          out.set(isInt ? (Object) new Integer((int) l) : (Object) new Long(l)); return;
        }
        
        if (t.equals("File")) {
          consume();
          File f = new File(unquote(tpp()));
          out.set(f); return;
        }
        
        if (t.startsWith("r") && isInteger(t.substring(1))) {
          consume();
          int ref = Integer.parseInt(t.substring(1));
          Object o = refs.get(ref);
          if (o == null)
            print("Warning: unsatisfied back reference " + ref);
          out.set(o); return;
        }
      
        if (t.startsWith("t") && isInteger(t.substring(1))) {
          consume();
          int ref = Integer.parseInt(t.substring(1));
          Object o = tokrefs.get(ref);
          if (o == null)
            print("Warning: unsatisfied token reference " + ref);
          out.set(o); return;
        }
        
        if (t.equals("hashset")) {
          parseHashSet(out); return;
        }
        if (t.equals("treeset")) {
          parseTreeSet(out); return;
        }
        if (eqOneOf(t, "hashmap", "hm")) {
          consume();
          parseMap(new HashMap(), out);
          return;
        }
        if (t.equals("lhm")) {
          consume();
          parseMap(new LinkedHashMap(), out);
          return;
        }
        if (t.equals("{")) {
          parseMap(out); return;
        }
        if (t.equals("[")) {
          parseList(out); return;
        }
        if (t.equals("bitset")) {
          parseBitSet(out); return;
        }
        if (t.equals("array") || t.equals("intarray")) {
          parseArray(out); return;
        }
        if (t.equals("ba")) {
          consume();
          String hex = unquote(tpp());
          out.set(hexToBytes(hex)); return;
        }
        if (t.equals("boolarray")) {
          consume();
          int n = parseInt(tpp());
          String hex = unquote(tpp());
          out.set(boolArrayFromBytes(hexToBytes(hex), n)); return;
        }
        if (t.equals("class")) {
          out.set(parseClass()); return;
        }
        if (t.equals("l")) {
          parseLisp(out); return;
        }
        if (t.equals("null")) {
          consume(); out.set(null); return;
        }
        
        if (eq(t, "c")) {
          consume("c");
          t = t();
          assertTrue(isJavaIdentifier(t));
          concepts.add(t);
        }
      }
      
      if (eq(t, "j")) {
        consume("j");
        out.set(parseJava()); return;
      }

      if (c == null && !isJavaIdentifier(t))
        throw new RuntimeException("Unknown token " + (i+1) + ": " + t);
        
      // any other class name
      if (c == null) {
        // First, find class
        if (allDynamic) c = null;
        else c = classFinder != null ? (Class) callF(classFinder, t) : findClass(t);
        if (c != null)
          classesMap.put(t, c);
      }
          
      // Check if it has an outer reference
      consume();
      boolean hasBracket = eq(t(), "(");
      if (hasBracket) consume();
      boolean hasOuter = hasBracket && eq(t(), "this$1");
      
      DynamicObject dO = null;
      Object o = null;
      if (c != null) {
        o = hasOuter ? nuStubInnerObject(c) : nuEmptyObject(c);
        if (o instanceof DynamicObject) dO = (DynamicObject) o;
      } else {
        if (concepts.contains(t) && (c = findClass("Concept")) != null)
          o = dO = (DynamicObject) nuEmptyObject(c);
        else
          dO = new DynamicObject();
        dO.className = t;
        if (debug) print("Made dynamic object " + t + " " + shortClassName(dO));
      }
      
      // Save in references list early because contents of object
      // might link back to main object
      
      if (refID != 0)
        refs.put(refID, o != null ? o : dO);
      tokrefs.put(tokIndex, o != null ? o : dO);
      
      // NOW parse the fields!
      
      final LinkedHashMap<String,Object> fields = new LinkedHashMap(); // preserve order
      final Object _o = o;
      final DynamicObject _dO = dO;
      if (hasBracket) {
        stack.add(new Runnable() { public void run() { try { 
          if (eq(t(), ")")) {
            consume(")");
            objRead(_o, _dO, fields);
            out.set(_o != null ? _o : _dO);
          } else {
            final String key = unquote(tpp());
            consume("=");
            stack.add(this);
            parse(new unstructure_Receiver() {
              void set(Object value) {
                fields.put(key, value);
                if (eq(t(), ",")) consume();
              }
            });
          }
        
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (eq(t(), \")\")) {\r\n            consume(\")\");\r\n            objRead(_o, _dO, fie..."; }});
      } else {
        objRead(o, dO, fields);
        out.set(o != null ? o : dO);
      }
    }
    
    void objRead(Object o, DynamicObject dO, Map<String, Object> fields) {
      
      if (o != null)
        if (dO != null) {
          if (debug)
            printStructure("setOptAllDyn", fields);
          setOptAllDyn(dO, fields);
        } else {
          setOptAll(o, fields);
          
        }
      else for (String field : keys(fields))
        dO.fieldValues.put(field.intern(), fields.get(field));

      if (o != null)
        pcallOpt_noArgs(o, "_doneLoading");
    }
    
    void parseSet(final Set set, final unstructure_Receiver out) {
      parseList(new unstructure_Receiver() {
        void set(Object o) {
          set.addAll((List) o);
          out.set(set);
        }
      });
    }
    
    void parseLisp(final unstructure_Receiver out) {
      consume("l");
      consume("(");
      final ArrayList list = new ArrayList();
      stack.add(new Runnable() { public void run() { try { 
        if (eq(t(), ")")) {
          consume(")");
          out.set(newObject("main$Lisp", (String) list.get(0), subList(list, 1)));
        } else {
          stack.add(this);
          parse(new unstructure_Receiver() {
            void set(Object o) {
              list.add(o);
              if (eq(t(), ",")) consume();
            }
          });
        }
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (eq(t(), \")\")) {\r\n          consume(\")\");\r\n          out.set(newObject(\"main$..."; }});
    }
    
    void parseBitSet(final unstructure_Receiver out) {
      consume("bitset");
      consume("{");
      final BitSet bs = new BitSet();
      stack.add(new Runnable() { public void run() { try { 
        if (eq(t(), "}")) {
          consume("}");
          out.set(bs);
        } else {
          stack.add(this);
          parse(new unstructure_Receiver() {
            void set(Object o) {
              bs.set((Integer) o);
              if (eq(t(), ",")) consume();
            }
          });
        }
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (eq(t(), \"}\")) {\r\n          consume(\"}\");\r\n          out.set(bs);\r\n        } ..."; }});
    }
    
    void parseList(final unstructure_Receiver out) {
      consume("[");
      final ArrayList list = new ArrayList();
      stack.add(new Runnable() { public void run() { try { 
        if (eq(t(), "]")) {
          consume("]");
          out.set(list);
        } else {
          stack.add(this);
          parse(new unstructure_Receiver() {
            void set(Object o) {
              //if (debug) print("List element type: " + getClassName(o));
              list.add(o);
              if (eq(t(), ",")) consume();
            }
          });
        }
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (eq(t(), \"]\")) {\r\n          consume(\"]\");\r\n          out.set(list);\r\n        ..."; }});
    }
    
    void parseArray(final unstructure_Receiver out) {
      final String type = tpp();
      consume("{");
      final List list = new ArrayList();
      
      stack.add(new Runnable() { public void run() { try { 
        if (eq(t(), "}")) {
          consume("}");
          out.set(type.equals("intarray") ? toIntArray(list) : list.toArray());
        } else {
          stack.add(this);
          parse(new unstructure_Receiver() {
            void set(Object o) {
              list.add(o);
              if (eq(t(), ",")) consume();
            }
          });
        }
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (eq(t(), \"}\")) {\r\n          consume(\"}\");\r\n          out.set(type.equals(\"int..."; }});
    }
    
    Object parseClass() {
      consume("class");
      consume("(");
      String name = unquote(tpp());
      consume(")");
      name = dropPrefix("main$", name);
      Class c = allDynamic ? null : classFinder != null ? (Class) callF(classFinder, name) : findClass(name);
      if (c != null) return c;
      DynamicObject dO = new DynamicObject();
      dO.className = "java.lang.Class";
      dO.fieldValues.put("name", name);
      return dO;
    }
    
    Object parseBigInt() {
      consume("bigint");
      consume("(");
      String val = tpp();
      if (eq(val, "-"))
        val = "-" + tpp();
      consume(")");
      return new BigInteger(val);
    }
    
    Object parseDouble() {
      consume("d");
      consume("(");
      String val = unquote(tpp());
      consume(")");
      return Double.parseDouble(val);
    }
    
    Object parseFloat() {
      consume("fl");
      String val;
      if (eq(t(), "(")) {
        consume("(");
        val = unquote(tpp());
        consume(")");
      } else {
        val = unquote(tpp());
      }
      return Float.parseFloat(val);
    }
    
    void parseHashSet(unstructure_Receiver out) {
      consume("hashset");
      parseSet(new HashSet(), out);
    }
    
    void parseTreeSet(unstructure_Receiver out) {
      consume("treeset");
      parseSet(new TreeSet(), out);
    }
    
    void parseMap(unstructure_Receiver out) {
      parseMap(new TreeMap(), out);
    }
    
    Object parseJava() {
      String j = unquote(tpp());
      Matches m = new Matches();
      if (jmatch("java.awt.Color[r=*,g=*,b=*]", j, m))
        return nuObject("java.awt.Color", parseInt(m.unq(0)), parseInt(m.unq(1)), parseInt(m.unq(2)));
      else throw fail("Unknown Java object: " + j);
    }
    
    void parseMap(final Map map, final unstructure_Receiver out) {
      consume("{");
      stack.add(new Runnable() {
        boolean v;
        Object key;
        
        public void run() { 
          if (v) {
            v = false;
            stack.add(this);
            consume("=");
            parse(new unstructure_Receiver() {
              void set(Object value) {
                map.put(key, value);
                if (debug)
                  print("parseMap: Got value " + getClassName(value) + ", next token: " + quote(t()));
                if (eq(t(), ",")) consume();
              }
            });
          } else {
            if (eq(t(), "}")) {
              consume("}");
              out.set(map);
            } else {
              v = true;
              stack.add(this);
              parse(new unstructure_Receiver() {
                void set(Object o) {
                  key = o;
                }
              });
            }
          } // if v else
        } // run()
      });
    }
    
    /*void parseSub(unstructure_Receiver out) {
      int n = l(stack);
      parse(out);
      while (l(stack) > n)
        stack
    }*/
    
    void consume() { curT = tok.next(); ++i; }
    
    void consume(String s) {
      if (!eq(t(), s)) {
        /*S prevToken = i-1 >= 0 ? tok.get(i-1) : "";
        S nextTokens = join(tok.subList(i, Math.min(i+2, tok.size())));
        fail(quote(s) + " expected: " + prevToken + " " + nextTokens + " (" + i + "/" + tok.size() + ")");*/
        throw fail(quote(s) + " expected, got " + quote(t()));
      }
      consume();
    }
    
    void parse_x(unstructure_Receiver out) {
      consume(); // get first token
      parse(out);
      while (nempty(stack))
        popLast(stack).run();
    }
  }
  
  final Var v = new Var();
  X x = new X();
  x.parse_x(new unstructure_Receiver() {
    void set(Object o) { v.set(o); }
  });
  unstructure_tokrefs = x.tokrefs.size();
  return v.get();
}

static boolean unstructure_debug;
static Component wrapForSmartAdd(Object o) {
  if (o == null) return new JPanel();
  if (o instanceof String) return jlabel((String) o);
  return wrap(o);
}
static ActionListener actionListener(final Object runnable) {
  if (runnable instanceof ActionListener) return (ActionListener) runnable;
  return new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { pcallF(runnable); }};
}
static Class getMainClass() {
  return main.class;
}

static Class getMainClass(Object o) { try {
  return (o instanceof Class ? (Class) o : o.getClass()).getClassLoader().loadClass("main");
} catch (Exception __e) { throw rethrow(__e); } }
static volatile boolean licensed_yes = true;

static boolean licensed() {
  ping();
  return licensed_yes;
}

static void licensed_off() {
  licensed_yes = false;
}
static List<String> javaTokC(String s) {
  int l = s.length();
  ArrayList<String> tok = new ArrayList();
  
  int i = 0;
  while (i < l) {
    int j = i;
    char c, d;
    
    // scan for whitespace
    while (j < l) {
      c = s.charAt(j);
      d = j+1 >= l ? '\0' : s.charAt(j+1);
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
        ++j;
      else if (c == '/' && d == '*') {
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
        j = Math.min(j+2, l);
      } else if (c == '/' && d == '/') {
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
      } else
        break;
    }
    
    i = j;
    if (i >= l) break;
    c = s.charAt(i);
    d = i+1 >= l ? '\0' : s.charAt(i+1);

    // scan for non-whitespace
    if (c == '\'' || c == '"') {
      char opener = c;
      ++j;
      while (j < l) {
        if (s.charAt(j) == opener || s.charAt(j) == '\n') { // end at \n to not propagate unclosed string literal errors
          ++j;
          break;
        } else if (s.charAt(j) == '\\' && j+1 < l)
          j += 2;
        else
          ++j;
      }
    } else if (Character.isJavaIdentifierStart(c))
      do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || "'".indexOf(s.charAt(j)) >= 0)); // for stuff like "don't"
    else if (Character.isDigit(c)) {
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L
    } else if (c == '[' && d == '[') {
      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
      j = Math.min(j+2, l);
    } else if (c == '[' && d == '=' && i+2 < l && s.charAt(i+2) == '[') {
      do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]"));
      j = Math.min(j+3, l);
    } else
      ++j;
      
    tok.add(quickSubstring(s, i, j));
    i = j;
  }
  
  return tok;
}

static String hopeningTag(String tag, Object... params) {
  StringBuilder buf = new StringBuilder();
  buf.append("<" + tag);
  for (int i = 0; i < l(params); i += 2) {
    String name = (String) get(params, i);
    Object val = get(params, i+1);
    if (nempty(name) && val != null) {
      String s = str(val);
      if (!empty(s))
        buf.append(" " + name + "=" + htmlQuote(s));
    }
  }
  buf.append(">");
  return str(buf);
}
static Map<String, Integer> findBot_cache = synchroHashMap();
static int findBot_timeout = 5000;

static DialogIO findBot(String searchPattern) {
  // first split off sub-bot suffix
  String subBot = null;
  int i = searchPattern.indexOf('/');
  if (i >= 0 && (isJavaIdentifier(searchPattern.substring(0, i)) || isInteger(searchPattern.substring(0, i)))) {
    subBot = searchPattern.substring(i+1);
    searchPattern = searchPattern.substring(0, i);
    if (!isInteger(searchPattern))
      searchPattern = "Multi-Port at " + searchPattern + ".";
  }
  
  // assume it's a port if it's an integer
  if (isInteger(searchPattern))
    return talkToSubBot(subBot, talkTo(parseInt(searchPattern)));
    
  if (eq(searchPattern, "remote"))
    return talkToSubBot(subBot, talkTo("second.tinybrain.de", 4999));
    
  Integer port = findBot_cache.get(searchPattern);
  if (port != null) try {
    DialogIO io = talkTo("localhost", port);
    io.waitForLine(/*findBot_timeout*/); // TODO: implement
    String line = io.readLineNoBlock();
    if (indexOfIgnoreCase(line, searchPattern) == 0) {
      call(io, "pushback", line); // put hello string back in
      return talkToSubBot(subBot, io);
    }
  } catch (Exception e) {
    e.printStackTrace();
  }
  
  List<ProgramScan.Program> bots = quickBotScan();
  
  // find top-level bots
  for (ProgramScan.Program p : bots) {
    if (indexOfIgnoreCase(p.helloString, searchPattern) == 0) { // strict matching - start of hello string only, but case-insensitive
      findBot_cache.put(searchPattern, p.port);
      return talkToSubBot(subBot, talkTo("localhost", p.port));
    }
  }
  
  // find sub-bots
  for (ProgramScan.Program p : bots) {
    String botName = firstPartOfHelloString(p.helloString);
    boolean isVM = startsWithIgnoreCase(p.helloString, "This is a JavaX VM.");
    boolean shouldRecurse = startsWithIgnoreCase(botName, "Multi-Port") || isVM;
        
    if (shouldRecurse) try {
      Map<Number, String> subBots = (Map) unstructure(sendToLocalBotQuietly(p.port, "list bots"));
      for (Number vport : subBots.keySet()) {
        String name = subBots.get(vport);
        if (startsWithIgnoreCase(name, searchPattern))
          return talkToSubBot(vport.longValue(), talkTo("localhost", p.port));
      }
    } catch (Throwable __e) { print(exceptionToStringShort(__e)); }
  }
        
  return null;
}
static Throwable getInnerException(Throwable e) {
  while (e.getCause() != null)
    e = e.getCause();
  return e;
}
  static Object call(Object o) {
    return callFunction(o);
  }
  
  // varargs assignment fixer for a single string array argument
  static Object call(Object o, String method, String[] arg) {
    return call(o, method, new Object[] {arg});
  }
  
  static Object call(Object o, String method, Object... args) {
    try {
      if (o instanceof Class) {
        Method m = call_findStaticMethod((Class) o, method, args, false);
        m.setAccessible(true);
        return m.invoke(null, args);
      } else {
        Method m = call_findMethod(o, method, args, false);
        m.setAccessible(true);
        return m.invoke(o, args);
      }
    } catch (Exception e) {
      throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e);
    }
  }

  static Method call_findStaticMethod(Class c, String method, Object[] args, boolean debug) {
    Class _c = c;
    while (c != null) {
      for (Method m : c.getDeclaredMethods()) {
        if (debug)
          System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
        if (!m.getName().equals(method)) {
          if (debug) System.out.println("Method name mismatch: " + method);
          continue;
        }

        if ((m.getModifiers() & Modifier.STATIC) == 0 || !call_checkArgs(m, args, debug))
          continue;

        return m;
      }
      c = c.getSuperclass();
    }
    throw new RuntimeException("Method '" + method + "' (static) with " + args.length + " parameter(s) not found in " + _c.getName());
  }

  static Method call_findMethod(Object o, String method, Object[] args, boolean debug) {
    Class c = o.getClass();
    while (c != null) {
      for (Method m : c.getDeclaredMethods()) {
        if (debug)
          System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
        if (m.getName().equals(method) && call_checkArgs(m, args, debug))
          return m;
      }
      c = c.getSuperclass();
    }
    throw new RuntimeException("Method '" + method + "' (non-static) with " + args.length + " parameter(s) not found in " + o.getClass().getName());
  }

  private static boolean call_checkArgs(Method m, Object[] args, boolean debug) {
    Class<?>[] types = m.getParameterTypes();
    if (types.length != args.length) {
      if (debug)
        System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
      return false;
    }
    for (int i = 0; i < types.length; i++)
      if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
        if (debug)
          System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
        return false;
      }
    return true;
  }


static boolean isTrue(Object o) {
  if (o instanceof Boolean)
    return ((Boolean) o).booleanValue();
  if (o == null) return false;
  throw fail(getClassName(o));
}
static Field getOpt_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
/** possibly improvable */
public static String winQuote(String text) {
  if (text == null) return null;
  return "\"" + text
    .replace("\\", "\\\\")
    .replace("\"", "\\\"")
    .replace("\n", "\\n")
    .replace("\r", "\\r") + "\"";
}

static String winQuote(File f) {
  return winQuote(f.getAbsolutePath());
}
static Boolean isHeadless_cache;

static boolean isHeadless() {
  if (isHeadless_cache != null) return isHeadless_cache;
  if (GraphicsEnvironment.isHeadless()) return isHeadless_cache = true;
  
  // Also check if AWT actually works.
  // If DISPLAY variable is set but no X server up, this will notice.
  
  try {
    SwingUtilities.isEventDispatchThread();
    return isHeadless_cache = false;
  } catch (Throwable e) { return isHeadless_cache = true; }
}
static boolean match3(String pat, String s) {
  return match3(pat, s, null);
}

static boolean match3(String pat, String s, Matches matches) {
  if (s == null) return false;
  return match3(pat, parse3_cached(s), matches);
}
  
static boolean match3(String pat, List<String> toks, Matches matches) {
  List<String> tokpat = parse3(pat);
  return match3(tokpat,toks,matches);
}

static boolean match3(List<String> tokpat, List<String> toks, Matches matches) {
  String[] m = match2(tokpat, toks);
  //print(structure(tokpat) + " on " + structure(toks) + " => " + structure(m));
  if (m == null) return false;
  if (matches != null) matches.m = m; return true;
}
  static String format3(String pat, Object... args) {
    if (args.length == 0) return pat;
    
    List<String> tok = javaTokPlusPeriod(pat);
    int argidx = 0;
    for (int i = 1; i < tok.size(); i += 2)
      if (tok.get(i).equals("*"))
        tok.set(i, format3_formatArg(argidx < args.length ? args[argidx++] : "null"));
    return join(tok);
  }
  
  static String format3_formatArg(Object arg) {
    if (arg == null) return "null";
    if (arg instanceof String) {
      String s = (String) arg;
      return isIdentifier(s) || isNonNegativeInteger(s) ? s : quote(s);
    }
    if (arg instanceof Integer || arg instanceof Long) return String.valueOf(arg);
    return quote(structure(arg));
  }
  

static <A> A callMain(A c, String... args) {
  callOpt(c, "main", new Object[] {args});
  return c;
}

static void callMain() {
  callMain(mc());
}
static <A> A getAndClearThreadLocal(ThreadLocal<A> tl) {
  A a = tl.get();
  tl.set(null);
  return a;
}
static Component getCenterComponent(Container container) {
  return ((BorderLayout) container.getLayout()).getLayoutComponent(BorderLayout.CENTER);
}
static volatile ILister l_persistentLister_instance;

static ILister l_persistentLister() {
  if (l_persistentLister_instance == null) {
    db();
    l_persistentLister_instance = uniq_sync(PersistentLister.class);
    l_defaultLister(l_persistentLister_instance);
  }
  return l_persistentLister_instance;
}

static void l_persistentLister(ILister l) {
  l_persistentLister_instance = l;
  l_defaultLister(l);
}
static RuntimeException asRuntimeException(Throwable t) {
  return t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
}
static boolean publicCommOn() {
  return "1".equals(loadTextFile(new File(userHome(), ".javax/public-communication")));
}
static String indentx(String s) {
  return indentx(indent_default, s);
}

static String indentx(int n, String s) {
  return dropSuffix(repeat(' ', n), indent(n, s));
}

static String indentx(String indent, String s) {
  return dropSuffix(indent, indent(indent, s));
}
static File programDir_mine; // set this to relocate program's data

static File programDir() {
  return programDir(getProgramID());
}

static File programDir(String snippetID) {
  if (programDir_mine != null && sameSnippetID(snippetID, programID()))
    return programDir_mine;
  File dir = new File(javaxDataDir(), formatSnippetID(snippetID));
  String c = caseID();
  if (nempty(c)) dir = newFile(dir, c);
  return dir;
}

static void removeFromConsole2(Component c) {
  JFrame frame = getFrame(c);
  if (frame == null) return;
  Container cp = frame.getContentPane(); // This is our BorderLayout
  cp = (Container) getCenterComponent(cp);
  if (cp != c.getParent()) { print("removeFromWindow fail"); return; }
  cp.remove(c);
  Container mainC = (Container) cp.getComponents()[0];
  cp.remove(mainC);

  replaceCenterComponent(frame.getContentPane(), mainC);
  validateFrame(frame);
}
  static String format(String pat, Object... args) {
    return format3(pat, args);
  }

static String getInjectionID() {
  return (String) call(getJavaX(), "getInjectionID", getMainClass());
}
static void saveLocally(String variableName) {
  saveLocally(programID(), variableName);
}

static void saveLocally(String progID, String variableName) {
  saveLocally2(mc(), progID, variableName);
}

static void saveLocally2(Object obj, String variableName) {
  saveLocally2(obj, programID(), variableName);
}

static void saveLocally2(Object obj, String progID, String variableName) {
  Lock _lock_0 = saveLock(); lock(_lock_0); try {
  File textFile = new File(programDir(progID), variableName + ".text");
  File structureFile = new File(programDir(progID), variableName + ".structure");
  Object x = get(obj, variableName);
  
  if (x == null) {
    textFile.delete();
    structureFile.delete();
  } else if (x instanceof String) {
    saveTextFile(textFile, (String) x);
    structureFile.delete();
  } else {
    saveTextFile(structureFile, javaTokWordWrap(structure(x)));
    textFile.delete();
  }
} finally { _lock_0.unlock(); } }
/** writes safely (to temp file, then rename) */
static void saveTextFile(String fileName, String contents) throws IOException {
  CriticalAction action = beginCriticalAction("Saving file " + fileName + " (" + l(contents) + " chars)");
  try {
    File file = new File(fileName);
    File parentFile = file.getParentFile();
    if (parentFile != null)
      parentFile.mkdirs();
    String tempFileName = fileName + "_temp";
    File tempFile = new File(tempFileName);
    if (contents != null) {
      if (tempFile.exists()) try {
        String saveName = tempFileName + ".saved." + now();
        copyFile(tempFile, new File(saveName));
      } catch (Throwable e) { printStackTrace(e); }
      FileOutputStream fileOutputStream = newFileOutputStream(tempFile.getPath());
      OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, "UTF-8");
      PrintWriter printWriter = new PrintWriter(outputStreamWriter);
      printWriter.print(contents);
      printWriter.close();
    }
    
    if (file.exists() && !file.delete())
      throw new IOException("Can't delete " + fileName);
  
    if (contents != null)
      if (!tempFile.renameTo(file))
        throw new IOException("Can't rename " + tempFile + " to " + file);
  } finally {
    action.done();
  }
}

static File saveTextFile(File fileName, String contents) { try {
  saveTextFile(fileName.getPath(), contents);
  return fileName;
} catch (Exception __e) { throw rethrow(__e); } }

static String getClassName(Object o) {
  return o == null ? "null" : o.getClass().getName();
}
static Map synchroMap() {
  return synchroHashMap();
}

static <A, B> Map<A, B> synchroMap(Map<A, B> map) {
  return Collections.synchronizedMap(map);
}
static <A> A printStruct(String prefix, A a) {
  printStructure(prefix, a);
  return a;
}

static <A> A printStruct(A a) {
  printStructure(a);
  return a;
}

public static File mkdirsForFile(File file) {
  File dir = file.getParentFile();
  if (dir != null) // is null if file is in current dir
    dir.mkdirs();
  return file;
}

static String string(Object o) {
  return String.valueOf(o);
}
static List<ProgramScan.Program> quickBotScan() {
  return ProgramScan.quickBotScan();
}

static List<ProgramScan.Program> quickBotScan(int[] preferredPorts) {
  return ProgramScan.quickBotScan(preferredPorts);
}

static List<ProgramScan.Program> quickBotScan(String searchPattern) {
  List<ProgramScan.Program> l = new ArrayList<ProgramScan.Program>();
  for (ProgramScan.Program p : ProgramScan.quickBotScan())
    if (indexOfIgnoreCase(p.helloString, searchPattern) == 0)
      l.add(p);
  return l;
}

static Object callOpt(Object o) {
  if (o == null) return null;
  return callF(o);
}

static Object callOpt(Object o, String method, Object... args) {
  try {
    if (o == null) return null;
    if (o instanceof Class) {
      Method m = callOpt_findStaticMethod((Class) o, method, args, false);
      if (m == null) return null;
      m.setAccessible(true);
      return m.invoke(null, args);
    } else {
      Method m = callOpt_findMethod(o, method, args, false);
      if (m == null) return null;
      m.setAccessible(true);
      return m.invoke(o, args);
    }
  } catch (Exception e) {
    //fail(e.getMessage() + " | Method: " + method + ", receiver: " + className(o) + ", args: (" + join(", ", map(f className, args) + ")");
    throw new RuntimeException(e);
  }
}

static Method callOpt_findStaticMethod(Class c, String method, Object[] args, boolean debug) {
  Class _c = c;
  while (c != null) {
    for (Method m : c.getDeclaredMethods()) {
      if (debug)
        System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
      if (!m.getName().equals(method)) {
        if (debug) System.out.println("Method name mismatch: " + method);
        continue;
      }

      if ((m.getModifiers() & Modifier.STATIC) == 0 || !callOpt_checkArgs(m, args, debug))
        continue;

      return m;
    }
    c = c.getSuperclass();
  }
  return null;
}

static Method callOpt_findMethod(Object o, String method, Object[] args, boolean debug) {
  Class c = o.getClass();
  while (c != null) {
    for (Method m : c.getDeclaredMethods()) {
      if (debug)
        System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
      if (m.getName().equals(method) && callOpt_checkArgs(m, args, debug))
        return m;
    }
    c = c.getSuperclass();
  }
  return null;
}

private static boolean callOpt_checkArgs(Method m, Object[] args, boolean debug) {
  Class<?>[] types = m.getParameterTypes();
  if (types.length != args.length) {
    if (debug)
      System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
    return false;
  }
  for (int i = 0; i < types.length; i++)
    if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
      if (debug)
        System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
      return false;
    }
  return true;
}


static <A, B> Set<A> keys(Map<A, B> map) {
  return map.keySet();
}

static Set keys(Object map) {
  return keys((Map) map);
}


// o can be a class, then we search for a static method called "html".
static String callHtmlMethod(Object o, String uri) {
  return callHtmlMethod(o, uri, null);
}

static String callHtmlMethod(Object o, String uri, Map<String, String> params) {
  String s = (String) callOpt(o, "html", uri, params);
  if (s == null)
    s = (String) callOpt(o, "html", uri);
  if (s == null)
    s = (String) callOpt(o, "html");
  return s;
}

static void assertFalse(Object o) {
  assertEquals(false, o);
}
  
static boolean assertFalse(boolean b) {
  if (b) throw fail("oops");
  return b;
}

static boolean assertFalse(String msg, boolean b) {
  if (b) throw fail(msg);
  return b;
}

static JPanel centerAndSouth(Component c, Component s) {
  JPanel panel = new JPanel(new BorderLayout());
  panel.add(BorderLayout.CENTER, wrap(c));
  if (s != null) panel.add(BorderLayout.SOUTH, wrap(s));
  return panel;
}
static AtomicInteger dialogServer_clients = new AtomicInteger();
static boolean dialogServer_printConnects;
static ThreadLocal<Boolean> startDialogServer_quiet = new ThreadLocal();

static Set<String> dialogServer_knownClients = synchroTreeSet();

static int startDialogServerOnPortAbove(int port, DialogHandler handler) {
  while (!forbiddenPort(port) && !startDialogServerIfPortAvailable(port, handler))
    ++port;
  return port;
}

static int startDialogServerOnPortAboveDaemon(int port, DialogHandler handler) {
  while (!forbiddenPort(port) && !startDialogServerIfPortAvailable(port, handler, true))
    ++port;
  return port;
}

static void startDialogServer(int port, DialogHandler handler) {
  if (!startDialogServerIfPortAvailable(port, handler))
    throw fail("Can't start dialog server on port " + port);
}

static boolean startDialogServerIfPortAvailable(int port, final DialogHandler handler) {
  return startDialogServerIfPortAvailable(port, handler, false);
}

static ServerSocket startDialogServer_serverSocket;
  
static boolean startDialogServerIfPortAvailable(int port, final DialogHandler handler, boolean daemon) {
  ServerSocket serverSocket = null;
  try {
    serverSocket = new ServerSocket(port);
  } catch (IOException e) {
    // probably the port number is used - let's assume there already is a chat server.
    return false;
  }
  final ServerSocket _serverSocket = serverSocket;
  startDialogServer_serverSocket = serverSocket;

  Thread thread = new Thread("Socket accept port " + port) { public void run() {
   try {
    while (true) {
      try {
        final Socket s = _serverSocket.accept();
        
        String client = s.getInetAddress().toString();
        if (!dialogServer_knownClients.contains(client) && neq(client, "/127.0.0.1")) {
          print("connect from " + client + " - clients: " + dialogServer_clients.incrementAndGet());
          dialogServer_knownClients.add(client);
        }
        
        String threadName = "Handling client " + s.getInetAddress();

        Thread t2 = new Thread(threadName) {
         public void run() {
          try {
            final Writer w = new OutputStreamWriter(s.getOutputStream(), "UTF-8");
            final BufferedReader in = new BufferedReader(
              new InputStreamReader(s.getInputStream(), "UTF-8"));
              
            DialogIO io = new DialogIO() {
            
              // This should be the same as #1001076 (talkTo)
            
  boolean isLocalConnection() {
    return s.getInetAddress().isLoopbackAddress();
  }
  
  boolean isStillConnected() {
    return !(eos || s.isClosed());
  }
  
  void sendLine(String line) { try {
    w.write(line + "\n");
    w.flush();
  } catch (Exception __e) { throw rethrow(__e); } }
  
  String readLineImpl() { try {
    return in.readLine();
  } catch (Exception __e) { throw rethrow(__e); } }
  
  void close() {
    try {
      s.close();
    } catch (IOException e) {
      // whatever
    }
  }
  
  Socket getSocket() {
    return s;
  }
  };
            
            try {
              handler.run(io);
            } finally {
              s.close();
            }
          } catch (IOException e) {
            print("[internal] " + e);
          } finally {
            //print("client disconnect - " + dialogServer_clients.decrementAndGet() + " remaining");
          }
         }
        }; // Thread t2
        t2.setDaemon(true); // ?
        t2.start();
      } catch (SocketTimeoutException e) {
      }
    }   
   } catch (IOException e) {
     print("[internal] " + e);
   }
  }};
  if (daemon) thread.setDaemon(true);
  thread.start();
 
  if (!isTrue(getAndClearThreadLocal(startDialogServer_quiet)))
    print("Dialog server on port " + port + " started."); 
  return true;
}
static long now_virtualTime;
static long now() {
  return now_virtualTime != 0 ? now_virtualTime : System.currentTimeMillis();
}

static ImageIcon imageIcon(String imageID) { try {
  return new ImageIcon(loadBinarySnippet(imageID).toURI().toURL());
} catch (Exception __e) { throw rethrow(__e); } }

static ImageIcon imageIcon(BufferedImage img) {
  return new ImageIcon(img);
}


static Object[] toObjectArray(Collection c) {
  List l = asList(c);
  return l.toArray(new Object[l.size()]);
}





// first delay = delay
static Timer installTimer(JComponent component, Object r, long delay) {
  return installTimer(component, r, delay, delay);
}

// first delay = delay
static Timer installTimer(RootPaneContainer frame, long delay, Object r) {
  return installTimer(frame.getRootPane(), r, delay, delay);
}

// first delay = delay
static Timer installTimer(JComponent component, long delay, Object r) {
  return installTimer(component, r, delay, delay);
}

static Timer installTimer(JComponent component, long delay, long firstDelay, Object r) {
  return installTimer(component, r, delay, firstDelay);
}

static Timer installTimer(final JComponent component, final Object r, final long delay, final long firstDelay) {
  return installTimer(component, r, delay, firstDelay, true);
}

static Timer installTimer(final JComponent component, final Object r, final long delay, final long firstDelay, final boolean repeats) {
  return (Timer) swingAndWait(new Object() { Object get() { try { 
    Timer timer = new Timer(toInt(delay), new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) {
      try {
        if (!allPaused())
          callF(r);
      } catch (Throwable __e) { printStackTrace2(__e); }
    }});
    timer.setInitialDelay(toInt(firstDelay));
    timer.setRepeats(repeats);
    bindTimerToComponent(timer, component);
    return timer;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "Timer timer = new Timer(toInt(delay), actionListener {\r\n      pcall {\r\n        i..."; }});
}

static Timer installTimer(JFrame frame, long delay, long firstDelay, Object r) {
  return installTimer(frame.getRootPane(), r, delay, firstDelay);
}

static String processID_cached;

// try to get our current process ID
static String getPID() {
  if (processID_cached == null) {
    String name = ManagementFactory.getRuntimeMXBean().getName();
    processID_cached = name.replaceAll("@.*", "");
  }
  return processID_cached;
}
static String unquote(String s) {
  if (s == null) return null;
  if (s.startsWith("[")) {
    int i = 1;
    while (i < s.length() && s.charAt(i) == '=') ++i;
    if (i < s.length() && s.charAt(i) == '[') {
      String m = s.substring(1, i);
      if (s.endsWith("]" + m + "]"))
        return s.substring(i+1, s.length()-i-1);
    }
  }
  
  if ((s.startsWith("\"") || s.startsWith("\'")) && s.length() > 1) {
    int l = s.endsWith(substring(s, 0, 1)) ? s.length()-1 : s.length();
    StringBuilder sb = new StringBuilder(l-1);

    for (int i = 1; i < l; i++) {
      char ch = s.charAt(i);
      if (ch == '\\') {
        char nextChar = (i == l - 1) ? '\\' : s.charAt(i + 1);
        // Octal escape?
        if (nextChar >= '0' && nextChar <= '7') {
            String code = "" + nextChar;
            i++;
            if ((i < l - 1) && s.charAt(i + 1) >= '0'
                    && s.charAt(i + 1) <= '7') {
                code += s.charAt(i + 1);
                i++;
                if ((i < l - 1) && s.charAt(i + 1) >= '0'
                        && s.charAt(i + 1) <= '7') {
                    code += s.charAt(i + 1);
                    i++;
                }
            }
            sb.append((char) Integer.parseInt(code, 8));
            continue;
        }
        switch (nextChar) {
        case '\\':
            ch = '\\';
            break;
        case 'b':
            ch = '\b';
            break;
        case 'f':
            ch = '\f';
            break;
        case 'n':
            ch = '\n';
            break;
        case 'r':
            ch = '\r';
            break;
        case 't':
            ch = '\t';
            break;
        case '\"':
            ch = '\"';
            break;
        case '\'':
            ch = '\'';
            break;
        // Hex Unicode: u????
        case 'u':
            if (i >= l - 5) {
                ch = 'u';
                break;
            }
            int code = Integer.parseInt(
                    "" + s.charAt(i + 2) + s.charAt(i + 3)
                       + s.charAt(i + 4) + s.charAt(i + 5), 16);
            sb.append(Character.toChars(code));
            i += 5;
            continue;
        default:
          ch = nextChar; // added by Stefan
        }
        i++;
      }
      sb.append(ch);
    }
    return sb.toString();   
  }
  
  return s; // not quoted - return original
}
static Class<?> hotwire(String src) {
  assertFalse(_inCore());
  Class j = getJavaX();
  if (isAndroid()) {
    synchronized(j) { // hopefully this goes well...
      List<File> libraries = new ArrayList<File>();
      File srcDir = (File) call(j, "transpileMain", src, libraries);
      if (srcDir == null)
        throw fail("transpileMain returned null (src=" + quote(src) + ")");
    
      Object androidContext = get(j, "androidContext");
      return (Class) call(j, "loadx2android", srcDir, src);
    }
  } else {
    // ret hotwire_overInternalBot(src);
    Class c = (Class) ( call(j, "hotwire", src));
    hotwire_copyOver(c);
    return c;
  }
}
static String programID() {
  return getProgramID();
}
static int toInt(Object o) {
  if (o == null) return 0;
  if (o instanceof Number)
    return ((Number) o).intValue();
  if (o instanceof String)
    return parseInt((String) o);
  throw fail("woot not int: " + getClassName(o));
}

static int toInt(long l) {
  if (l != (int) l) throw fail("Too large for int: " + l);
  return (int) l;
}
  public static String loadTextFile(String fileName) {
    return loadTextFile(fileName, null);
  }
  
  public static String loadTextFile(String fileName, String defaultContents) {
    try {
      if (!new File(fileName).exists())
        return defaultContents;
  
      FileInputStream fileInputStream = new FileInputStream(fileName);
      InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8");
      return loadTextFile(inputStreamReader);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
  
  public static String loadTextFile(File fileName) {
    return loadTextFile(fileName, null);
  }

  public static String loadTextFile(File f, String defaultContents) {
    return f == null ? defaultContents : loadTextFile(f.getPath(), defaultContents);
  }
  
  public static String loadTextFile(Reader reader) throws IOException {
    StringBuilder builder = new StringBuilder();
    try {
      char[] buffer = new char[1024];
      int n;
      while (-1 != (n = reader.read(buffer)))
        builder.append(buffer, 0, n);
        
    } finally {
      reader.close();
    }
    return builder.toString();
  }
public static String rtrim(String s) {
  int i = s.length();
  while (i > 0 && " \t\r\n".indexOf(s.charAt(i-1)) >= 0)
    --i;
  return i < s.length() ? s.substring(0, i) : s;
}
static boolean match(String pat, String s) {
  return match3(pat, s);
}

static boolean match(String pat, String s, Matches matches) {
  return match3(pat, s, matches);
}

static String callStaticAnswerMethod(List bots, String s) {
  for (Object c : bots) try {
    String answer = callStaticAnswerMethod(c, s);
    if (!empty(answer)) return answer;
  } catch (Throwable e) {
    print("Error calling " + getProgramID(c));
    e.printStackTrace();
  }
  return null;
}

static String callStaticAnswerMethod(Object c, String s) {
  String answer = (String) callOpt(c, "answer", s, litlist(s));
  if (answer == null)
    answer = (String) callOpt(c, "answer", s);
  return emptyToNull(answer);
}

static String callStaticAnswerMethod(String s) {
  return callStaticAnswerMethod(mc(), s);
}

static String callStaticAnswerMethod(String s, List<String> history) {
  return callStaticAnswerMethod(mc(), s, history);
}

static String callStaticAnswerMethod(Object c, String s, List<String> history) {
  String answer = (String) callOpt(c, "answer", s, history);
  if (answer == null)
    answer = (String) callOpt(c, "answer", s);
  return emptyToNull(answer);
}
static void smartSet(Field f, Object o, Object value) throws Exception {
  f.setAccessible(true);
  
  // take care of common case (long to int)
  if (f.getType() == int.class && value instanceof Long)
    value = ((Long) value).intValue();
    
  try {
    f.set(o, value);
  } catch (Exception e) {
    
      try {
        if (f.getType() == Concept.Ref.class) {
          f.set(o, ((Concept) o).new Ref((Concept) value));
          return;
        }
        if (o instanceof Concept.Ref) {
          f.set(o, ((Concept.Ref) o).get());
          return;
        }
      } catch (Throwable _e) {}
    
    throw e;
  }
}
static volatile boolean readLine_noReadLine;

static String readLine() {
  if (readLine_noReadLine) return null;
  return (String) call(getJavaX(), "readLine");
}
static void validateFrame(Component c) {
  revalidateFrame(c);
}
static int randomID_defaultLength = 12;

static String randomID(int length) {
  return makeRandomID(length);
}

static String randomID() {
  return randomID(randomID_defaultLength);
}
static Producer<String> javaTokC_noMLS_onReader(final BufferedReader r) {
  final class X implements Producer<String> {
    StringBuilder buf = new StringBuilder(); // stores from "i"
    char c, d, e = 'x'; // just not '\0'
    
    X() {
      // fill c, d and e
      nc();
      nc();
      nc();
    }
    
    // get next character(s) into c, d and e
    void nc() { try {
      c = d;
      d = e;
      if (e == '\0') return;
      int i = r.read();
      e = i < 0 ? '\0' : (char) i;
    } catch (Exception __e) { throw rethrow(__e); } }
    
    void ncSave() {
      if (c != '\0') {
        buf.append(c);
        nc();
      }
    }
    
    public String next() {
      // scan for whitespace
      while (c != '\0') {
        if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
          nc();
        else if (c == '/' && d == '*') {
          do nc(); while (c != '\0' && !(c == '*' && d == '/'));
          nc(); nc();
        } else if (c == '/' && d == '/') {
          do nc(); while (c != '\0' && "\r\n".indexOf(c) < 0);
        } else
          break;
      }
      
      if (c == '\0') return null;

      // scan for non-whitespace
      if (c == '\'' || c == '"') {
        char opener = c;
        ncSave();
        while (c != '\0') {
          if (c == opener || c == '\n') { // end at \n to not propagate unclosed string literal errors
            ncSave();
            break;
          } else if (c == '\\') {
            ncSave();
            ncSave();
          } else
            ncSave();
        }
      } else if (Character.isJavaIdentifierStart(c))
        do ncSave(); while (Character.isJavaIdentifierPart(c) || c == '\''); // for stuff like "don't"
      else if (Character.isDigit(c)) {
        do ncSave(); while (Character.isDigit(c));
        if (c == 'L') ncSave(); // Long constants like 1L
      } else
        ncSave();
        
      String t = buf.toString();
      buf.setLength(0);
      return t;
    }
  }
  
  return new X();
}

static String getProgramName_cache;

static synchronized String getProgramName() {
  if (getProgramName_cache == null)
    getProgramName_cache = getSnippetTitleOpt(programID());
  return getProgramName_cache;
}
static NanoHTTPD.Response serve404() {
  return serve404("Not Found");
}

static NanoHTTPD.Response serve404(String msg) {
  return NanoHTTPD.newFixedLengthResponse(NanoHTTPD.Status.NOT_FOUND, NanoHTTPD.MIME_PLAINTEXT, "Code 404 - " + msg);
}
static int isAndroid_flag;

static boolean isAndroid() {
  if (isAndroid_flag == 0)
    isAndroid_flag = System.getProperty("java.vendor").toLowerCase().indexOf("android") >= 0 ? 1 : -1;
  return isAndroid_flag > 0;
}

static String[] dropFirst(int n, String[] a) {
  return drop(n, a);
}

static String[] dropFirst(String[] a) {
  return drop(1, a);
}

static Object[] dropFirst(Object[] a) {
  return drop(1, a);
}

static <A> List<A> dropFirst(List<A> l) {
  return dropFirst(1, l);
}

static <A> List<A> dropFirst(Iterable<A> i) {
  return dropFirst(toList(i));
}

static <A> List<A> dropFirst(int n, List<A> l) {
  return n <= 0 ? l : new ArrayList(l.subList(Math.min(n, l.size()), l.size()));
}

static <A> List<A> dropFirst(List<A> l, int n) {
  return dropFirst(n, l);
}

static String dropFirst(int n, String s) { return substring(s, n); }
static String dropFirst(String s) { return substring(s, 1); }


static Font typeWriterFont() {
  return typeWriterFont(14);
}
  
static Font typeWriterFont(int size) {
  return new Font("Courier", Font.PLAIN, size);
}
static List<CriticalAction> beginCriticalAction_inFlight = synchroList();

static class CriticalAction {
  String description;
  
  CriticalAction() {}
  CriticalAction(String description) {
  this.description = description;}
  
  void done() {
    beginCriticalAction_inFlight.remove(this);
  }
}

static CriticalAction beginCriticalAction(String description) {
  ping();
  CriticalAction c = new CriticalAction(description);
  beginCriticalAction_inFlight.add(c);
  return c;
}

static void cleanMeUp_beginCriticalAction() {
  int n = 0;
  while (nempty(beginCriticalAction_inFlight)) {
    int m = l(beginCriticalAction_inFlight);
    if (m != n) {
      n = m;
      try {
        print("Waiting for " + n(n, "critical actions") + ": " + join(", ", collect(beginCriticalAction_inFlight, "description")));
      } catch (Throwable __e) { printStackTrace2(__e); }
    }
    sleepInCleanUp(10);
  }
}
static WeakHashMap<Class, ArrayList<Method>> callF_cache = new WeakHashMap();

static Object callF(Object f, Object... args) { try {
  if (f instanceof String)
    return callMC((String) f, args);
  if (f instanceof Runnable) {
    ((Runnable) f).run();
    return null;
  }
  if (f == null) return null;
  
  Class c = f.getClass();
  ArrayList<Method> methods;
  synchronized(callF_cache) {
    methods = callF_cache.get(c);
    if (methods == null)
      methods = callF_makeCache(c);
  }
  
  int n = l(methods);
  if (n == 0) throw fail("No get method in " + getClassName(c));
  if (n == 1) return methods.get(0).invoke(f, args);
  for (int i = 0; i < n; i++) {
    Method m = methods.get(i);
    if (call_checkArgs(m, args, false))
      return m.invoke(f, args);
  }
  throw fail("No matching get method in " + getClassName(c));
} catch (Exception __e) { throw rethrow(__e); } }

// used internally
static ArrayList<Method> callF_makeCache(Class c) {
  ArrayList<Method> l = new ArrayList();
  Class _c = c;
  do {
    for (Method m : _c.getDeclaredMethods())
      if (m.getName().equals("get")) {
        m.setAccessible(true);
        l.add(m);
      }
    if (!l.isEmpty()) break;
    _c = _c.getSuperclass();
  } while (_c != null);
  callF_cache.put(c, l);
  return l;
}
static <A extends Window> A disposeWindowAfter(int delay, final A w) {
  if (w != null)
    swingLater(delay, new Runnable() { public void run() { try { 
      w.dispose();
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "w.dispose();"; }});
  return w;
}
static <A> ArrayList<A> asList(A[] a) {
  return new ArrayList<A>(Arrays.asList(a));
}

static ArrayList<Integer> asList(int[] a) {
  ArrayList<Integer> l = new ArrayList();
  for (int i : a) l.add(i);
  return l;
}

static <A> ArrayList<A> asList(Iterable<A> s) {
  if (s instanceof ArrayList) return (ArrayList) s;
  ArrayList l = new ArrayList();
  if (s != null)
    for (A a : s)
      l.add(a);
  return l;
}

static <A> ArrayList<A> asList(Enumeration<A> e) {
  ArrayList l = new ArrayList();
  if (e != null)
    while (e.hasMoreElements())
      l.add(e.nextElement());
  return l;
}
static JTextArea wrappedTextArea(JTextArea ta) {
  ta.setLineWrap(true);
  ta.setWrapStyleWord(true);
  return ta;
}

static JTextArea wrappedTextArea() {
  return wrappedTextArea(new JTextArea());
}

static JTextArea wrappedTextArea(String text) {
  JTextArea ta = wrappedTextArea();
  ta.setText(text);
  return ta;
}
static <A extends Concept> A uniq_sync(final Class<A> c, final Object... params) {
  return withDBLock(new F0<A>() { A get() { try { return  uniq(c, params) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "uniq(c, params)"; }});
}
static byte[] hexToBytes(String s) {
  int n = l(s) / 2;
  byte[] bytes = new byte[n];
  for (int i = 0; i < n; i++) {
    String hex = substring(s, i*2, i*2+2);
    try {
      bytes[i] = (byte) parseHexByte(hex);
    } catch (Throwable _e) {
      throw fail("Bad hex byte: " + quote(hex) + " at " + i*2 + "/" + l(s));
    }
  }
  return bytes;
}
static boolean allPaused() {
  return ping_pauseAll;
}
static HashMap<Class,Constructor> nuEmptyObject_cache = new HashMap();

static <A> A nuEmptyObject(Class<A> c) { try {
  Constructor ctr;
  
  synchronized(nuEmptyObject_cache) {
    ctr = nuEmptyObject_cache.get(c);
    if (ctr == null) {
      nuEmptyObject_cache.put(c, ctr = nuEmptyObject_findConstructor(c));
      ctr.setAccessible(true);
    }
  }

  return (A) ctr.newInstance();
} catch (Exception __e) { throw rethrow(__e); } }

static Constructor nuEmptyObject_findConstructor(Class c) {
  for (Constructor m : c.getDeclaredConstructors())
    if (m.getParameterTypes().length == 0)
      return m;
  throw fail("No default constructor declared in " + c.getName());
}

static String caseID_caseID;

static String caseID() { return caseID_caseID; }
static Lock saveLock_lock = fairLock();

static Lock saveLock() {
  return saveLock_lock;
}
static boolean setOptAllDyn_debug;

static void setOptAllDyn(DynamicObject o, Map<String, Object> fields) {
  if (fields == null) return;
  for (String field : keys(fields)) {
    Object val = fields.get(field);
    boolean has = hasField(o, field);
    if (has)
      setOpt(o, field, val);
    else {
      o.fieldValues.put(field.intern(), val);
      if (setOptAllDyn_debug) print("setOptAllDyn added dyn " + field + " to " + o + " [value: " + val + ", fieldValues = " + systemHashCode(o.fieldValues) + ", " + struct(keys(o.fieldValues)) + "]");
    }
  }
}
static File loadBinarySnippet(String snippetID) { try {
  long id = parseSnippetID(snippetID);
  File f = DiskSnippetCache_getLibrary(id);
  if (fileSize(f) == 0)
    f = loadDataSnippetToFile(snippetID);
  return f;
} catch (Exception __e) { throw rethrow(__e); } }
static String quickSubstring(String s, int i, int j) {
  if (i == j) return "";
  return s.substring(i, j);
}
static <A> Set<A> synchroTreeSet() {
  return Collections.synchronizedSet(new TreeSet<A>());
}

static void showConsole() {
  showFrame(consoleFrame());
}
static boolean structure_isMarker(String s, int i, int j) {
  if (i >= j) return false;
  if (s.charAt(i) != 'm') return false;
  ++i;
  while (i < j) {
    char c = s.charAt(i);
    if (c < '0' || c > '9') return false;
    ++i;
  }
  return true;
}
static Object newObject(Class c, Object... args) {
  return nuObject(c, args);
}

static Object newObject(String className, Object... args) {
  return nuObject(className, args);
}

static int vmPort() {
  return myVMPort();
}
static Class __javax;

static Class getJavaX() {
  return __javax;
}
static String getSnippetTitleOpt(String s) {
  return isSnippetID(s) ? getSnippetTitle(s) : s;
}
static <A> List<A> subList(List<A> l, int startIndex) {
  return subList(l, startIndex, l(l));
}

static <A> List<A> subList(List<A> l, int startIndex, int endIndex) {
  startIndex = max(0, min(l(l), startIndex));
  endIndex = max(0, min(l(l), endIndex));
  if (startIndex > endIndex) return litlist();
  return l.subList(startIndex, endIndex);
}


// c = JComponent or something implementing swing()
static JComponent wrap(Object swingable) {
  if (swingable == null) return null;
  JComponent c = (JComponent) ( swingable instanceof JComponent ? swingable : callOpt(swingable, "swing"));
  if (c instanceof JTable || c instanceof JList
    || c instanceof JTextArea || c instanceof JEditorPane
    || c instanceof JTextPane || c instanceof JTree)
    return new JScrollPane(c);
  return c;
}

static boolean startsWithIgnoreCase(String a, String b) {
  return a != null && a.regionMatches(true, 0, b, 0, b.length());
}
static void db() {
  conceptsAndBot();
}
// match2 matches multiple "*" (matches a single token) wildcards and zero or one "..." wildcards (matches multiple tokens)

static String[] match2(List<String> pat, List<String> tok) {
  // standard case (no ...)
  int i = pat.indexOf("...");
  if (i < 0) return match2_match(pat, tok);
  
  pat = new ArrayList<String>(pat); // We're modifying it, so copy first
  pat.set(i, "*");
  while (pat.size() < tok.size()) {
    pat.add(i, "*");
    pat.add(i+1, ""); // doesn't matter
  }
  
  return match2_match(pat, tok);
}

static String[] match2_match(List<String> pat, List<String> tok) {
  List<String> result = new ArrayList<String>();
  if (pat.size() != tok.size()) {
    
    return null;
  }
  for (int i = 1; i < pat.size(); i += 2) {
    String p = pat.get(i), t = tok.get(i);
    
    if (eq(p, "*"))
      result.add(t);
    else if (!equalsIgnoreCase(unquote(p), unquote(t))) // bold change - match quoted and unquoted now
      return null;
  }
  return result.toArray(new String[result.size()]);
}

static JScrollPane jscroll(Component c) {
  return new JScrollPane(c);
}
static String firstPartOfHelloString(String s) {
  int i = s.lastIndexOf('/');
  return i < 0 ? s : rtrim(s.substring(0, i));
}
static boolean isInteger(String s) {
  if (s == null) return false;
  int n = l(s);
  if (n == 0) return false;
  int i = 0;
  if (s.charAt(0) == '-')
    if (++i >= n) return false;
  while (i < n) {
    char c = s.charAt(i);
    if (c < '0' || c > '9') return false;
    ++i;
  }
  return true;
}
static boolean jmatch(String pat, String s) {
  return jmatch(pat, s, null);
}

static boolean jmatch(String pat, String s, Matches matches) {
  if (s == null) return false;
  return jmatch(pat, javaTok(s), matches);
}

static boolean jmatch(String pat, List<String> toks) {
  return jmatch(pat, toks, null);
}

static boolean jmatch(String pat, List<String> toks, Matches matches) {
  List<String> tokpat = javaTok(pat);
  String[] m = match2(tokpat, toks);
  //print(structure(tokpat) + " on " + structure(toks) + " => " + structure(m));
  if (m == null)
    return false;
  else {
    if (matches != null) matches.m = m;
    return true;
  }
}
static String formatSnippetID(String id) {
  return "#" + parseSnippetID(id);
}

static String formatSnippetID(long id) {
  return "#" + id;
}
static boolean isNonNegativeInteger(String s) {
  return s != null && Pattern.matches("\\d+", s);
}
static <A> A last(List<A> l) {
  return l.isEmpty() ? null : l.get(l.size()-1);
}

static char last(String s) {
  return empty(s) ? '#' : s.charAt(l(s)-1);
}

static int last(int[] a) {
  return l(a) != 0 ? a[l(a)-1] : 0;
}
static Producer<String> javaTokC_noMLS_iterator(final String s) {
  return new Producer<String>() {
    final int l = s.length();
    int i = 0;
    
    public String next() {
      if (i >= l) return null;
      
      int j = i;
      char c, d;
      
      // scan for whitespace
      while (j < l) {
        c = s.charAt(j);
        d = j+1 >= l ? '\0' : s.charAt(j+1);
        if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
          ++j;
        else if (c == '/' && d == '*') {
          do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
          j = Math.min(j+2, l);
        } else if (c == '/' && d == '/') {
          do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
        } else
          break;
      }
      
      i = j;
      if (i >= l) return null;
      c = s.charAt(i);
      d = i+1 >= l ? '\0' : s.charAt(i+1);
  
      // scan for non-whitespace
      if (c == '\'' || c == '"') {
        char opener = c;
        ++j;
        while (j < l) {
          if (s.charAt(j) == opener || s.charAt(j) == '\n') { // end at \n to not propagate unclosed string literal errors
            ++j;
            break;
          } else if (s.charAt(j) == '\\' && j+1 < l)
            j += 2;
          else
            ++j;
        }
      } else if (Character.isJavaIdentifierStart(c))
        do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || "'".indexOf(s.charAt(j)) >= 0)); // for stuff like "don't"
      else if (Character.isDigit(c)) {
        do ++j; while (j < l && Character.isDigit(s.charAt(j)));
        if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L
      } else
        ++j;
        
      String t = quickSubstring(s, i, j);
      i = j;
      return t;
    }
  };
}

static boolean forbiddenPort(int port) {
  return port == 5037; // adb
}

// This is made for NL parsing.
// It's javaTok extended with "..." token, "$n" and "#n" and
// special quotes (which are converted to normal ones).

static List<String> javaTokPlusPeriod(String s) {
  List<String> tok = new ArrayList<String>();
  int l = s.length();
  
  int i = 0;
  while (i < l) {
    int j = i;
    char c; String cc;
    
    // scan for whitespace
    while (j < l) {
      c = s.charAt(j);
      cc = s.substring(j, Math.min(j+2, l));
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
        ++j;
      else if (cc.equals("/*")) {
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
        j = Math.min(j+2, l);
      } else if (cc.equals("//")) {
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
      } else
        break;
    }
    
    tok.add(s.substring(i, j));
    i = j;
    if (i >= l) break;
    c = s.charAt(i);
    cc = s.substring(i, Math.min(i+2, l));

    // scan for non-whitespace
    if (c == '\u201C' || c == '\u201D') c = '"'; // normalize quotes
    if (c == '\'' || c == '"') {
      char opener = c;
      ++j;
      while (j < l) {
        char _c = s.charAt(j);
        if (_c == '\u201C' || _c == '\u201D') _c = '"'; // normalize quotes
        if (_c == opener) {
          ++j;
          break;
        } else if (s.charAt(j) == '\\' && j+1 < l)
          j += 2;
        else
          ++j;
      }
      if (j-1 >= i+1) {
        tok.add(opener + s.substring(i+1, j-1) + opener);
        i = j;
        continue;
      }
    } else if (Character.isJavaIdentifierStart(c))
      do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || s.charAt(j) == '\'')); // for things like "this one's"
    else if (Character.isDigit(c))
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
    else if (cc.equals("[[")) {
      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
      j = Math.min(j+2, l);
    } else if (cc.equals("[=") && i+2 < l && s.charAt(i+2) == '[') {
      do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]"));
      j = Math.min(j+3, l);
    } else if (s.substring(j, Math.min(j+3, l)).equals("..."))
      j += 3;
    else if (c == '$' || c == '#')
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
    else
      ++j;

    tok.add(s.substring(i, j));
    i = j;
  }
  
  if ((tok.size() % 2) == 0) tok.add("");
  return tok;
}

static String sendToLocalBotQuietly(String bot, String text, Object... args) {
  text = format3(text, args);
  
  DialogIO channel = newFindBot2(bot);
  if (channel == null)
    throw fail(quote(bot) + " not found");
  try {
    channel.readLine();
    channel.sendLine(text);
    String s = channel.readLine();
    return s;
  } catch (Throwable e) {
    e.printStackTrace();
    return null;
  } finally {
    channel.close();
  }
}

static String sendToLocalBotQuietly(int port, String text, Object... args) {
  text = format3(text, args);
  DialogIO channel = talkTo(port);
  try {
    channel.readLine();
    channel.sendLine(text);
    String s = channel.readLine();
    return s;
  } catch (Throwable e) {
    e.printStackTrace();
    return null;
  } finally {
    if (channel != null)
      channel.close();
  }
}
static String[] drop(int n, String[] a) {
  n = Math.min(n, a.length);
  String[] b = new String[a.length-n];
  System.arraycopy(a, n, b, 0, b.length);
  return b;
}

static Object[] drop(int n, Object[] a) {
  n = Math.min(n, a.length);
  Object[] b = new Object[a.length-n];
  System.arraycopy(a, n, b, 0, b.length);
  return b;
}
static File newFile(File base, String... names) {
  for (String name : names) base = new File(base, name);
  return base;
}

static File newFile(String name) {
  return name == null ? null : new File(name);
}
static List emptyList() {
  return new ArrayList();
  //ret Collections.emptyList();
}
static FileOutputStream newFileOutputStream(File path) throws IOException {
  return newFileOutputStream(path.getPath());
}

static FileOutputStream newFileOutputStream(String path) throws IOException {
  return newFileOutputStream(path, false);
}

static FileOutputStream newFileOutputStream(String path, boolean append) throws IOException {
  FileOutputStream f = new // Line break for ancient translator
    FileOutputStream(path, append);
  callJavaX("registerIO", f, path, true);
  return f;
}
static String shortClassName(Object o) {
  if (o == null) return null;
  Class c = o instanceof Class ? (Class) o : o.getClass();
  String name = c.getName();
  return shortenClassName(name);
}
static void setOptAll(Object o, Map<String, Object> fields) {
  if (fields == null) return;
  for (String field : keys(fields))
    setOpt(o, field, fields.get(field));
}

static void setOptAll(Object o, Object... values) {
  //values = expandParams(c.getClass(), values);
  warnIfOddCount(values);
  for (int i = 0; i+1 < l(values); i += 2) {
    String field = (String) values[i];
    Object value = values[i+1];
    setOpt(o, field, value);
  }
}
static String makeRandomID(int length) {
  Random random = new Random();
  char[] id = new char[length];
  for (int i = 0; i < id.length; i++)
    id[i] = (char) ((int) 'a' + random.nextInt(26));
  return new String(id);
}
static char unquoteCharacter(String s) {
  assertTrue(s.startsWith("'") && s.length() > 1);
  return unquote("\"" + s.substring(1, s.endsWith("'") ? s.length()-1 : s.length()) + "\"").charAt(0);
}
static Object getOpt(Object o, String field) {
  return getOpt_cached(o, field);
}

static Object getOpt_raw(Object o, String field) {
  try {
    Field f = getOpt_findField(o.getClass(), field);
    if (f == null) return null;
    f.setAccessible(true);
    return f.get(o);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static Object getOpt(Class c, String field) {
  try {
    if (c == null) return null;
    Field f = getOpt_findStaticField(c, field);
    if (f == null) return null;
    f.setAccessible(true);
    return f.get(null);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static Field getOpt_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}

static <A> A popLast(List<A> l) {
  return liftLast(l);
}
static Map synchroHashMap() {
  return Collections.synchronizedMap(new HashMap());
}

static <A> A nuStubInnerObject(Class<A> c) { try {
  Class outerType = getOuterClass(c);
  Constructor m = c.getDeclaredConstructor(outerType);
  m.setAccessible(true);
  return (A) m.newInstance(new Object[] {null});
} catch (Exception __e) { throw rethrow(__e); } }
static boolean[] boolArrayFromBytes(byte[] a, int n) {
  boolean[] b = new boolean[n];
  int m = min(n, l(a)*8);
  for (int i = 0; i < m; i++)
    b[i] = (a[i/8] & 1 << (i & 7)) != 0;
  return b;
}
public static String join(String glue, Iterable<String> strings) {
  if (strings == null) return "";
  StringBuilder buf = new StringBuilder();
  Iterator<String> i = strings.iterator();
  if (i.hasNext()) {
    buf.append(i.next());
    while (i.hasNext())
      buf.append(glue).append(i.next());
  }
  return buf.toString();
}

public static String join(String glue, String[] strings) {
  return join(glue, Arrays.asList(strings));
}

static String join(Iterable<String> strings) {
  return join("", strings);
}

static String join(Iterable<String> strings, String glue) {
  return join(glue, strings);
}

public static String join(String[] strings) {
  return join("", strings);
}

static String dropPrefix(String prefix, String s) {
  return s == null ? null : s.startsWith(prefix) ? s.substring(l(prefix)) : s;
}
static HashMap<String,Class> findClass_cache = new HashMap();

// currently finds only inner classes of class "main"
// returns null on not found
// this is the simple version that is not case-tolerant
static Class findClass(String name) {
  synchronized(findClass_cache) {
    if (findClass_cache.containsKey(name))
      return findClass_cache.get(name);
      
    if (!isJavaIdentifier(name)) return null;
    
    Class c;
    try {
      c = Class.forName("main$" + name);
    } catch (ClassNotFoundException e) {
      c = null;
    }
    findClass_cache.put(name, c);
    return c;
  }
}
static boolean isJavaIdentifier(String s) {
  if (empty(s) || !Character.isJavaIdentifierStart(s.charAt(0)))
    return false;
  for (int i = 1; i < s.length(); i++)
    if (!Character.isJavaIdentifierPart(s.charAt(i)))
      return false;
  return true;
}
public static void copyFile(File src, File dest) { try {
  mkdirsForFile(dest);
  FileInputStream inputStream = new FileInputStream(src.getPath());
  FileOutputStream outputStream = newFileOutputStream(dest.getPath());
  try {
    copyStream(inputStream, outputStream);
    inputStream.close();
  } finally {
    outputStream.close();
  }
} catch (Exception __e) { throw rethrow(__e); } }
static float parseFloat(String s) {
  return Float.parseFloat(s);
}


static void bindTimerToComponent(final Timer timer, JFrame f) {
  bindTimerToComponent(timer, f.getRootPane());
}

static void bindTimerToComponent(final Timer timer, JComponent c) {
  if (c.isShowing())
    timer.start();
  
  c.addAncestorListener(new AncestorListener() {
    public void ancestorAdded(AncestorEvent event) {
      timer.start();
    }

    public void ancestorRemoved(AncestorEvent event) {
      timer.stop();
    }

    public void ancestorMoved(AncestorEvent event) {
    }
  });
}
static String htmlQuote(String s) {
  return "\"" + htmlencode(s) + "\"";
}
static boolean _inCore() {
  return false;
}
static DialogIO talkToThisVM() {
  return new talkToThisVM_IO();
}

static class talkToThisVM_IO extends DialogIO { 
  List<String> answers = ll(thisVMGreeting());
  
  boolean isLocalConnection() { return true; }
  boolean isStillConnected() { return true; }
  int getPort() { return vmPort(); }
  
  void sendLine(String line) {
    answers.add(or2(sendToThisVM_newThread(line), "?"));
  }
  
  String readLineImpl() { try {
    return popFirst(answers);
  } catch (Exception __e) { throw rethrow(__e); } }
  
  void close() {}
  Socket getSocket() { return null; }
}
  static List<String> parse3(String s) {
    return dropPunctuation(javaTokPlusPeriod(s));
  }
static String _userHome;
static String userHome() {
  if (_userHome == null) {
    if (isAndroid())
      _userHome = "/storage/sdcard0/";
    else
      _userHome = System.getProperty("user.home");
    //System.out.println("userHome: " + _userHome);
  }
  return _userHome;
}

static File userHome(String path) {
  return new File(userDir(), path);
}
static void assertTrue(Object o) {
  assertEquals(true, o);
}
  
static boolean assertTrue(String msg, boolean b) {
  if (!b)
    throw fail(msg);
  return b;
}

static boolean assertTrue(boolean b) {
  if (!b)
    throw fail("oops");
  return b;
}
static boolean isLongConstant(String s) {
  if (!s.endsWith("L")) return false;
  s = s.substring(0, l(s)-1);
  return isInteger(s);
}
static String parse3_cached_s;
static List<String> parse3_cached_l;

  static synchronized List<String> parse3_cached(String s) {
    if (neq(s, parse3_cached_s))
      parse3_cached_l = parse3(parse3_cached_s = s);
    return parse3_cached_l;
  }
static String internIfLongerThan(String s, int l) {
  return s == null ? null : l(s) >= l ? s.intern() : s;
}
static void pcallOpt_noArgs(Object o, String method) {
  try { callOpt_noArgs(o, method); } catch (Throwable __e) { printStackTrace2(__e); }
}
static int iround(double d) {
  return (int) Math.round(d);
}
static <A> A assertEquals(Object x, A y) {
  return assertEquals(null, x, y);
}

static <A> A assertEquals(String msg, Object x, A y) {
  if (!(x == null ? y == null : x.equals(y)))
    throw fail((msg != null ? msg + ": " : "") + y + " != " + x);
  return y;
}
static boolean sameSnippetID(String a, String b) {
  return a != null && b != null && parseSnippetID(a) == parseSnippetID(b);
}
static long parseLong(String s) {
  if (s == null) return 0;
  return Long.parseLong(dropSuffix("L", s));
}

static long parseLong(Object s) {
  return Long.parseLong((String) s);
}
// works on lists and strings and null

static int indexOfIgnoreCase(Object a, Object b) {
  if (a == null) return -1;
  if (a instanceof String) {
     Matcher m = Pattern.compile((String) b, Pattern.CASE_INSENSITIVE + Pattern.LITERAL).matcher((String) a);
     if (m.find()) return m.start(); else return -1;
  }
  if (a instanceof List) {
    for (int i = 0; i < ((List) a).size(); i++) {
      Object o = ((List) a).get(i);
      if (o != null && ((String) o).equalsIgnoreCase((String) b))
        return i;
    }
    return -1;
  }
  throw fail("Unknown type: " + a);
}
static boolean isIdentifier(String s) {
  return isJavaIdentifier(s);
}
static void onClick(JComponent c, final Object runnable) {
  c.addMouseListener(new MouseAdapter() {
    public void mouseClicked(MouseEvent e) {
      callF(runnable, e);
    }
  });
}

// re-interpreted for buttons
static void onClick(JButton btn, final Object runnable) {
  onEnter(btn, runnable);
}
static void hotwire_copyOver(Class c) {
  synchronized(StringBuffer.class) {
    for (String field : litlist("print_log", "print_silent", "androidContext")) {
      Object o = getOpt(mc(), field);
      if (o != null)
        setOpt(c, field, o);
    }
      
    Object mainBot = getMainBot();
    if (mainBot != null)
      setOpt(c, "mainBot", mainBot);

    setOpt(c, "creator_class", new WeakReference(mc()));
  }
}
static volatile ILister l_defaultLister_instance;
static Lock l_defaultLister_lock = new ReentrantLock();

static ILister l_defaultLister() {
  Lock _lock_1 = l_defaultLister_lock; lock(_lock_1); try {
  if (l_defaultLister_instance == null)
    l_defaultLister_instance = unlisted(PersistentLister.class);
  return l_defaultLister_instance;
} finally { _lock_1.unlock(); } }

static void l_defaultLister(ILister l) {
  Lock _lock_2 = l_defaultLister_lock; lock(_lock_2); try {
  l_defaultLister_instance = l;
} finally { _lock_2.unlock(); } }
static <A> ArrayList<A> toList(A[] a) { return asList(a); }
static ArrayList<Integer> toList(int[] a) { return asList(a); }
static <A> ArrayList<A> toList(Set<A> s) { return asList(s); }
static <A> ArrayList<A> toList(Iterable<A> s) { return asList(s); }
static int[] toIntArray(List<Integer> l) {
  int[] a = new int[l(l)];
  for (int i = 0; i < a.length; i++)
    a[i] = l.get(i);
  return a;
}
static <A> List<A> takeFirst(List<A> l, int n) {
  return newSubList(l, 0, n);
}

static <A> List<A> takeFirst(int n, List<A> l) {
  return takeFirst(l, n);
}

static String takeFirst(int n, String s) {
  return substring(s, 0, n);
}

static void printStructure(String prefix, Object o) {
  if (endsWithLetter(prefix)) prefix += ": ";
  print(prefix + structureForUser(o));
}

static void printStructure(Object o) {
  print(structureForUser(o));
}

// extended over Class.isInstance() to handle primitive types
static boolean isInstanceX(Class type, Object arg) {
  if (type == boolean.class) return arg instanceof Boolean;
  if (type == int.class) return arg instanceof Integer;
  if (type == long.class) return arg instanceof Long;
  if (type == float.class) return arg instanceof Float;
  if (type == short.class) return arg instanceof Short;
  if (type == char.class) return arg instanceof Character;
  if (type == byte.class) return arg instanceof Byte;
  if (type == double.class) return arg instanceof Double;
  return type.isInstance(arg);
}
static boolean eqOneOf(Object o, Object... l) {
  for (Object x : l) if (eq(o, x)) return true; return false;
}
static List<Object> getMultiPorts() {
  return (List) callOpt(getJavaX(), "getMultiPorts");
}
static String emptyToNull(String s) {
  return eq(s, "") ? null : s;
}
static JWindow showWindow(Component c) {
  JWindow w = new JWindow();
  w.add(wrap(c));
  return w;
}
static Object nuObject(String className, Object... args) { try {
  return nuObject(Class.forName(className), args);
} catch (Exception __e) { throw rethrow(__e); } }

// too ambiguous - maybe need to fix some callers
/*static O nuObject(O realm, S className, O... args) {
  ret nuObject(_getClass(realm, className), args);
}*/

static <A> A nuObject(Class<A> c, Object... args) { try {
  Constructor m = nuObject_findConstructor(c, args);
  m.setAccessible(true);
  return (A) m.newInstance(args);
} catch (Exception __e) { throw rethrow(__e); } }

static Constructor nuObject_findConstructor(Class c, Object... args) {
  for (Constructor m : c.getDeclaredConstructors()) {
    if (!nuObject_checkArgs(m.getParameterTypes(), args, false))
      continue;
    return m;
  }
  throw fail("Constructor " + c.getName() + getClasses(args) + " not found"
    + (args.length == 0 && (c.getModifiers() & Modifier.STATIC) == 0 ? " - hint: it's a non-static class!" : ""));
}

 static boolean nuObject_checkArgs(Class[] types, Object[] args, boolean debug) {
    if (types.length != args.length) {
      if (debug)
        System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
      return false;
    }
    for (int i = 0; i < types.length; i++)
      if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
        if (debug)
          System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
        return false;
      }
    return true;
  }
static String javaTokWordWrap(String s) {
  int cols = 120, col = 0;
  List<String> tok = javaTok(s);
  for (int i = 0; i < l(tok); i++) {
    String t = tok.get(i);
    if (odd(i) && col >= cols && !containsNewLine(t))
      tok.set(i, t += "\n");
    int idx = t.lastIndexOf('\n');
    if (idx >= 0) col = l(t)-(idx+1);
    else col += l(t);
  }
  return join(tok);
}
static File javaxDataDir_dir; // can be set to work on different base dir

static File javaxDataDir() {
  return javaxDataDir_dir != null ? javaxDataDir_dir : new File(userHome(), "JavaX-Data");
}
static int indent_default = 2;

static String indent(int indent) {
  return repeat(' ', indent);
}

static String indent(int indent, String s) {
  return indent(repeat(' ', indent), s);
}

static String indent(String indent, String s) {
  return indent + s.replace("\n", "\n" + indent);
}

static String indent(String s) {
  return indent(indent_default, s);
}

static List<String> indent(String indent, List<String> lines) {
  List<String> l = new ArrayList();
  for (String s : lines)
    l.add(indent + s);
  return l;
}
static JFrame getFrame(final Object _o) {
  return swing(new F0<JFrame>() { JFrame get() { try { 
    Object o = _o;
    if (o instanceof ButtonGroup) o = first(buttonsInGroup((ButtonGroup) o));
    if (!(o instanceof Component)) return null;
    Component c = (Component) o;
    while (c != null) {
      if (c instanceof JFrame) return (JFrame) c;
      c = c.getParent();
    }
    return null;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "O o = _o;\r\n    if (o instanceof ButtonGroup) o = first(buttonsInGroup((ButtonGro..."; }});
}
static JLabel jlabel(final String text) {
  return swing(new F0<JLabel>() { JLabel get() { try { 
    final JLabel l = new JLabel(text) {
      @Override
      public void setText(String text) {
        super.setText(text);
        setToolTipText(text);
      }
    };
    componentPopupMenu(l, new Object() { void get(JPopupMenu menu) { try { 
      addMenuItem(menu, "Copy text to clipboard", new Runnable() { public void run() { try { 
        copyTextToClipboard(l.getText());
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "copyTextToClipboard(l.getText());"; }});
     } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "addMenuItem(menu, \"Copy text to clipboard\", r {\r\n        copyTextToClipboard(l.g..."; }});
    return l;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "final JLabel l = new JLabel(text) {\r\n      @Override\r\n      public void setText(..."; }});
}

static JLabel jlabel() {
  return jlabel(" ");
}
static String substring(String s, int x) {
  return substring(s, x, l(s));
}

static String substring(String s, int x, int y) {
  if (s == null) return null;
  if (x < 0) x = 0;
  if (x > s.length()) return "";
  if (y < x) y = x;
  if (y > s.length()) y = s.length();
  return s.substring(x, y);
}


static double parseDouble(String s) {
  return Double.parseDouble(s);
}
static String repeat(char c, int n) {
  n = Math.max(n, 0);
  char[] chars = new char[n];
  for (int i = 0; i < n; i++)
    chars[i] = c;
  return new String(chars);
}

static <A> List<A> repeat(A a, int n) {
  List<A> l = new ArrayList(n);
  for (int i = 0; i < n; i++)
    l.add(a);
  return l;
}

static <A> List<A> repeat(int n, A a) {
  return repeat(a, n);
}
static String formatSnippetIDOpt(String s) {
  return isSnippetID(s) ? formatSnippetID(s) : s;
}
static String dropSuffix(String suffix, String s) {
  return s.endsWith(suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
static void revalidateFrame(Component c) {
  revalidate(getFrame(c));
}
static boolean structure_showTiming, structure_checkTokenCount;

static String structure(Object o) {
  return structure(o, new structure_Data());
}

static String structure(Object o, structure_Data d) {
  StringWriter sw = new StringWriter();
  d.out = new PrintWriter(sw);
  structure_go(o, d);
  String s = str(sw);
  if (structure_checkTokenCount) {
    print("token count=" + d.n);
    assertEquals("token count", l(javaTokC(s)), d.n);
  }
  return s;
}

static void structure_go(Object o, structure_Data d) {
  structure_1(o, d);
  while (nempty(d.stack))
    popLast(d.stack).run();
}

static void structureToPrintWriter(Object o, PrintWriter out) {
  structure_Data d = new structure_Data();
  d.out = out;
  structure_go(o, d);
}

// leave to false, unless unstructure() breaks
static boolean structure_allowShortening = false;

static class structure_Data {
  PrintWriter out;
  int stringSizeLimit;
  int shareStringsLongerThan = 20;
  boolean noStringSharing;

  IdentityHashMap<Object,Integer> seen = new IdentityHashMap();
  //new BitSet refd;
  HashMap<String,Integer> strings = new HashMap();
  HashSet<String> concepts = new HashSet();
  HashMap<Class, List<Field>> fieldsByClass = new HashMap();
  int n; // token count
  List<Runnable> stack = new ArrayList();
  
  // append single token
  structure_Data append(String token) { out.print(token); ++n; return this; }
  structure_Data append(int i) { out.print(i); ++n; return this; }
  
  // append multiple tokens
  structure_Data append(String token, int tokCount) { out.print(token); n += tokCount; return this; }
  
  // extend last token
  structure_Data app(String token) { out.print(token); return this; }
  structure_Data app(int i) { out.print(i); return this; }
}

static void structure_1(final Object o, final structure_Data d) {
  if (o == null) { d.append("null"); return; }
  
  Class c = o.getClass();
  boolean concept = false;
  
    concept = o instanceof Concept;
  
  List<Field> lFields = d.fieldsByClass.get(c);
  
  if (lFields == null) {
    // these are never back-referenced (for readability)
    
    if (o instanceof Number) {
      PrintWriter out = d.out;
if (o instanceof Integer) { int i = ((Integer) o).intValue(); out.print(i); d.n += i < 0 ? 2 : 1; return; }
      if (o instanceof Long) { long l = ((Long) o).longValue(); out.print(l); out.print("L"); d.n += l < 0 ? 2 : 1; return; }
      if (o instanceof Float) { d.append("fl ", 2); quoteToPrintWriter(str(o), out); return; }
      if (o instanceof Double) { d.append("d(", 3); quoteToPrintWriter(str(o), out); d.append(")"); return; }
      if (o instanceof BigInteger) { out.print("bigint("); out.print(o); out.print(")"); d.n += ((BigInteger) o).signum() < 0 ? 5 : 4; return; }
    }
  
    if (o instanceof Boolean) {
      d.append(((Boolean) o).booleanValue() ? "t" : "f"); return;
    }
      
    if (o instanceof Character) {
      d.append(quoteCharacter((Character) o)); return;
    }
      
    if (o instanceof File) {
      d.append("File ").append(quote(((File) o).getPath())); return;
    }
      
    // referencable objects follow
    
    Integer ref = d.seen.get(o);
    if (o instanceof String && ref == null) ref = d.strings.get((String) o);
    if (ref != null) { /*d.refd.set(ref);*/ d.append("t").app(ref); return; }

    if (!(o instanceof String))
      d.seen.put(o, d.n); // record token number
    else {
      String s = d.stringSizeLimit != 0 ? shorten((String) o, d.stringSizeLimit) : (String) o;
      if (!d.noStringSharing) {
        if (d.shareStringsLongerThan == Integer.MAX_VALUE)
          d.seen.put(o, d.n);
        if (l(s) >= d.shareStringsLongerThan)
          d.strings.put(s, d.n);
      }
      quoteToPrintWriter(s, d.out); d.n++; return;
    }
      
    if (o instanceof HashSet) {
      d.append("hashset ");
      structure_1(new ArrayList((Set) o), d);
      return;
    }
  
    if (o instanceof TreeSet) {
      d.append("treeset ");
      structure_1(new ArrayList((Set) o), d);
      return;
    }
    
    String name = c.getName();
    if (o instanceof Collection
      && !startsWith(name, "main$")
      /* && neq(name, "main$Concept$RefL") */) {
      d.append("[");
      final int l = d.n;
      final Iterator it = ((Collection) o).iterator();
      d.stack.add(new Runnable() { public void run() { try { 
        if (!it.hasNext())
          d.append("]");
        else {
          d.stack.add(this);
          if (d.n != l) d.append(", ");
          structure_1(it.next(), d);
        }
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (!it.hasNext())\r\n          d.append(\"]\");\r\n        else {\r\n          d.stack...."; }});
      return;
    }
    
    if (o instanceof Map && !startsWith(name, "main$")) {
      if (o instanceof LinkedHashMap) d.append("lhm");
      else if (o instanceof HashMap) d.append("hm");
      d.append("{");
      final int l = d.n;
      final Iterator it = ((Map) o).entrySet().iterator();
      
      d.stack.add(new Runnable() {
        boolean v;
        Map.Entry e;
        
        public void run() {
          if (v) {
            d.append("=");
            v = false;
            d.stack.add(this);
            structure_1(e.getValue(), d);
          } else {
            if (!it.hasNext())
              d.append("}");
            else {
              e = (Map.Entry) it.next();
              v = true;
              d.stack.add(this);
              if (d.n != l) d.append(", ");
              structure_1(e.getKey(), d);
            }
          }
        }
      });
      return;
    }
    
    if (c.isArray()) {
      if (o instanceof byte[]) {
        d.append("ba ").append(quote(bytesToHex((byte[]) o))); return;
      }
  
      final int n = Array.getLength(o);
  
      if (o instanceof boolean[]) {
        String hex = boolArrayToHex((boolean[]) o);
        int i = l(hex);
        while (i > 0 && hex.charAt(i-1) == '0' && hex.charAt(i-2) == '0') i -= 2;
        d.append("boolarray ").append(n).app(" ").append(quote(substring(hex, 0, i))); return;
      }
      
      String atype = "array", sep = ", ";
  
      if (o instanceof int[]) {
        //ret "intarray " + quote(intArrayToHex((int[]) o));
        atype = "intarray";
        sep = " ";
      }
      
      d.append(atype).append("{");
      d.stack.add(new Runnable() {
        int i;
        public void run() {
          if (i >= n)
            d.append("}");
          else {
            d.stack.add(this);
            if (i > 0) d.append(", ");
            structure_1(Array.get(o, i++), d);
          }
        }
      });
      return;
    }
  
    if (o instanceof Class) {
      d.append("class(", 2).append(quote(((Class) o).getName())).append(")"); return;
    }
      
    if (o instanceof Throwable) {
      d.append("exception(", 2).append(quote(((Throwable) o).getMessage())).append(")"); return;
    }
      
    if (o instanceof BitSet) {
      BitSet bs = (BitSet) o;
      d.append("bitset{", 2);
      int l = d.n;
      for (int i = bs.nextSetBit(0); i >= 0; i = bs.nextSetBit(i+1)) {
        if (d.n != l) d.append(", ");
        d.append(i);
      }
      d.append("}"); return;
    }
      
    // Need more cases? This should cover all library classes...
    if (name.startsWith("java.") || name.startsWith("javax.")) {
      d.append("j ").append(quote(str(o))); return; // Hm. this is not unstructure-able
    }
    
    
      
    /*if (name.equals("main$Lisp")) {
      fail("lisp not supported right now");
    }*/
    
    String dynName = shortDynamicClassName(o);
    if (concept && !d.concepts.contains(dynName)) {
      d.concepts.add(dynName);
      d.append("c ");
    }
    
    // serialize an object with fields.
    // first, collect all fields and values in fv.
    
    TreeSet<Field> fields = new TreeSet<Field>(new Comparator<Field>() {
      public int compare(Field a, Field b) {
        return stdcompare(a.getName(), b.getName());
      }
    });
    
    Class cc = c;
    while (cc != Object.class) {
      for (Field field : getDeclaredFields_cached(cc)) {
        if ((field.getModifiers() & (Modifier.STATIC | Modifier.TRANSIENT)) != 0)
          continue;
        String fieldName = field.getName();
        
        fields.add(field);
        
        // put special cases here...
      }
        
      cc = cc.getSuperclass();
    }
    
    lFields = asList(fields);
    
    // Render this$1 first because unstructure needs it for constructor call.
    
    for (int i = 0; i < l(lFields); i++) {
      Field f = lFields.get(i);
      if (f.getName().equals("this$1")) {
        lFields.remove(i);
        lFields.add(0, f);
        break;
      }
    }
  
    
    d.fieldsByClass.put(c, lFields);
  } // << if (lFields == null)
  else { // ref handling for lFields != null
    Integer ref = d.seen.get(o);
    if (ref != null) { /*d.refd.set(ref);*/ d.append("t").app(ref); return; }
    d.seen.put(o, d.n); // record token number
  }

  LinkedHashMap<String,Object> fv = new LinkedHashMap();
  for (Field f : lFields) {
    Object value;
    try {
      value = f.get(o);
    } catch (Exception e) {
      value = "?";
    }
      
    if (value != null)
      fv.put(f.getName(), value);
    
  }
  
  String name = c.getName();
  String shortName = dropPrefix("main$", name);
    
  // Now we have fields & values. Process fieldValues if it's a DynamicObject.
  
  // omit field "className" if equal to class's name
  if (concept && eq(fv.get("className"), shortName))
    fv.remove("className");
          
  if (o instanceof DynamicObject) {
    fv.putAll((Map) fv.get("fieldValues"));
    fv.remove("fieldValues");
    shortName = shortDynamicClassName(o);
    fv.remove("className");
  }
  
  String singleField = fv.size() == 1 ? first(fv.keySet()) : null;
  
  d.append(shortName);
  
  
  final int l = d.n;
  final Iterator it = fv.entrySet().iterator();
  
  d.stack.add(new Runnable() { public void run() { try { 
    if (!it.hasNext()) {
      if (d.n != l)
        d.append(")");
    } else {
      Map.Entry e = (Map.Entry) it.next();
      d.append(d.n == l ? "(" : ", ");
      d.append((String) e.getKey()).append("=");
      d.stack.add(this);
      structure_1(e.getValue(), d);
    }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (!it.hasNext()) {\r\n      if (d.n != l)\r\n        d.append(\")\");\r\n    } else {\r..."; }});
}

// start multi-port if none exists in current VM.
static void startMultiPort() {
  List mp = getMultiPorts();
  if (mp != null && mp.isEmpty()) {
    nohupJavax("#1001639");
    throw fail("Upgrading JavaX, please restart this program afterwards.");
    //callMain(hotwire("#1001672"));
  }
}
static boolean isLocalhost(String ip) {
  return isLoopbackIP(ip) || eqic(ip, "localhost");
}
static int moveToTopRightCorner_inset = 20;

static <A extends Component> A moveToTopRightCorner(A a) {
  Window w = getWindow(a);
  if (w != null)
    w.setLocation(getScreenSize().width-w.getWidth()-moveToTopRightCorner_inset, moveToTopRightCorner_inset);
  return a;
}



static Map<String, Integer> newFindBot2_cache = synchroHashMap();
static boolean newFindBot2_verbose;

static DialogIO newFindBot2(String name) {
  Integer port = newFindBot2_cache.get(name);
  if (port != null) {
    if (newFindBot2_verbose)
      print("newFindBot2: testing " + name + " => " + port);
    DialogIO io = talkTo(port);
    String q = format("has bot *", name);
    String s = io.ask(q);
    if (match("yes", s)) {
      io = talkToSubBot(name, io);
      call(io, "pushback", "?"); // put some hello string in (yes, this should be improved.)
      return io;
    }
    // bot not there anymore - remove cache entry
    newFindBot2_cache.remove(name);
    if (newFindBot2_verbose)
      print("newFindBot2: dropping " + name + " => " + port);
  }
  
  DialogIO io = findBot(name);
  if (io != null) {
    newFindBot2_cache.put(name, io.getPort());
    if (newFindBot2_verbose)
      print("newFindBot2: remembering " + name + " => " + port);
  }
  return io;
}
static final HashMap<String, List<Method>> callMC_cache = new HashMap();
static String callMC_key;
static Method callMC_value;

// varargs assignment fixer for a single string array argument
static Object callMC(String method, String[] arg) {
  return callMC(method, new Object[] {arg});
}

static Object callMC(String method, Object... args) { try {
  Method me;
  synchronized(callMC_cache) {
    me = method == callMC_key ? callMC_value : null;
  }
  if (me != null) return callMC_value.invoke(null, args);

  List<Method> m;
  synchronized(callMC_cache) {
    m = callMC_cache.get(method);
  }
  if (m == null) {
    if (callMC_cache.isEmpty()) {
      callMC_makeCache();
      m = callMC_cache.get(method);
    }
    if (m == null) throw fail("Method named " + method + " not found in main");
  }
  int n = m.size();
  if (n == 1) {
    me = m.get(0);
    synchronized(callMC_cache) {
      callMC_key = method;
      callMC_value = me;
    }
    return me.invoke(null, args);
  }
  for (int i = 0; i < n; i++) {
    me = m.get(i);
    if (call_checkArgs(me, args, false))
      return me.invoke(null, args);
  }
  throw fail("No method called " + method + " with matching arguments found in main");
} catch (Exception __e) { throw rethrow(__e); } }

static void callMC_makeCache() {
  synchronized(callMC_cache) {
    callMC_cache.clear();
    Class _c = (Class) mc(), c = _c;
    while (c != null) {
      for (Method m : c.getDeclaredMethods())
        if ((m.getModifiers() & Modifier.STATIC) != 0) {
          m.setAccessible(true);
          multiMapPut(callMC_cache, m.getName(), m);
        }
      c = c.getSuperclass();
    }
  }
}
static String quoteCharacter(char c) {
  if (c == '\'') return "'\\''";
  if (c == '\\') return "'\\\\'";
  if (c == '\r') return "'\\r'";
  if (c == '\n') return "'\\n'";
  if (c == '\t') return "'\\t'";
  return "'" + c + "'";
}

static boolean equalsIgnoreCase(String a, String b) {
  return a == null ? b == null : a.equalsIgnoreCase(b);
}

static boolean equalsIgnoreCase(char a, char b) {
  if (a == b) return true;
  char u1 = Character.toUpperCase(a);
  char u2 = Character.toUpperCase(b);
  if (u1 == u2) return true;
  return Character.toLowerCase(u1) == Character.toLowerCase(u2);
}
static String shortDynamicClassName(Object o) {
 if (o instanceof DynamicObject && ((DynamicObject) o).className != null)
    return ((DynamicObject) o).className;
  return shortClassName(o);
}
static <A> A liftLast(List<A> l) {
  if (l.isEmpty()) return null;
  int i = l(l)-1;
  A a = l.get(i);
  l.remove(i);
  return a;
}
// replacement for class JavaTok
// maybe incomplete, might want to add floating point numbers
// todo also: extended multi-line strings

static int javaTok_n, javaTok_elements;
static boolean javaTok_opt;

static List<String> javaTok(String s) {
  return javaTok(s, null);
}

static List<String> javaTok(String s, List<String> existing) {
  ++javaTok_n;
  int nExisting = javaTok_opt && existing != null ? existing.size() : 0;
  ArrayList<String> tok = existing != null ? new ArrayList(nExisting) : new ArrayList();
  int l = s.length();
  
  int i = 0, n = 0;
  while (i < l) {
    int j = i;
    char c, d;
    
    // scan for whitespace
    while (j < l) {
      c = s.charAt(j);
      d = j+1 >= l ? '\0' : s.charAt(j+1);
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
        ++j;
      else if (c == '/' && d == '*') {
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
        j = Math.min(j+2, l);
      } else if (c == '/' && d == '/') {
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
      } else
        break;
    }
    
    if (n < nExisting && javaTok_isCopyable(existing.get(n), s, i, j))
      tok.add(existing.get(n));
    else
      tok.add(quickSubstring(s, i, j));
    ++n;
    i = j;
    if (i >= l) break;
    c = s.charAt(i);
    d = i+1 >= l ? '\0' : s.charAt(i+1);

    // scan for non-whitespace
    
    // Special JavaX syntax: 'identifier
    if (c == '\'' && Character.isJavaIdentifierStart(d) && i+2 < l && "'\\".indexOf(s.charAt(i+2)) < 0) {
      j += 2;
      while (j < l && Character.isJavaIdentifierPart(s.charAt(j)))
        ++j;
    } else if (c == '\'' || c == '"') {
      char opener = c;
      ++j;
      while (j < l) {
        if (s.charAt(j) == opener /*|| s.charAt(j) == '\n'*/) { // allow multi-line strings
          ++j;
          break;
        } else if (s.charAt(j) == '\\' && j+1 < l)
          j += 2;
        else
          ++j;
      }
    } else if (Character.isJavaIdentifierStart(c))
      do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || "'".indexOf(s.charAt(j)) >= 0)); // for stuff like "don't"
    else if (Character.isDigit(c)) {
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L
    } else if (c == '[' && d == '[') {
      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
      j = Math.min(j+2, l);
    } else if (c == '[' && d == '=' && i+2 < l && s.charAt(i+2) == '[') {
      do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]"));
      j = Math.min(j+3, l);
    } else
      ++j;
      
    if (n < nExisting && javaTok_isCopyable(existing.get(n), s, i, j))
      tok.add(existing.get(n));
    else
      tok.add(quickSubstring(s, i, j));
    ++n;
    i = j;
  }
  
  if ((tok.size() % 2) == 0) tok.add("");
  javaTok_elements += tok.size();
  return tok;
}

static List<String> javaTok(List<String> tok) {
  return javaTok(join(tok), tok);
}

static boolean javaTok_isCopyable(String t, String s, int i, int j) {
  return t.length() == j-i
    && s.regionMatches(i, t, 0, j-i); // << could be left out, but that's brave
}
static Object mainBot;

static Object getMainBot() {
  return mainBot;
}
static List<AbstractButton> buttonsInGroup(ButtonGroup g) {
  if (g == null) return ll();
  return asList(g.getElements());
}
static int myVMPort() {
  List records = (List) ( get(getJavaX(), "record_list"));
  Object android = records.get(records.size()-1);
  return (Integer) get(android, "port");
}
static int min(int a, int b) {
  return Math.min(a, b);
}

static long min(long a, long b) {
  return Math.min(a, b);
}

static float min(float a, float b) { return Math.min(a, b); }
static float min(float a, float b, float c) { return min(min(a, b), c); }

static double min(double a, double b) {
  return Math.min(a, b);
}

static double min(double[] c) {
  double x = Double.MAX_VALUE;
  for (double d : c) x = Math.min(x, d);
  return x;
}

static float min(float[] c) {
  float x = Float.MAX_VALUE;
  for (float d : c) x = Math.min(x, d);
  return x;
}

static byte min(byte[] c) {
  byte x = 127;
  for (byte d : c) if (d < x) x = d;
  return x;
}

static short min(short[] c) {
  short x = 0x7FFF;
  for (short d : c) if (d < x) x = d;
  return x;
}
static class componentPopupMenu_Maker {
  List menuMakers = new ArrayList();
}

static Map<JComponent, componentPopupMenu_Maker> componentPopupMenu_map = new WeakHashMap();

static ThreadLocal<MouseEvent> componentPopupMenu_mouseEvent = new ThreadLocal();

// menuMaker = voidfunc(JPopupMenu)
static void componentPopupMenu(final JComponent component, final Object menuMaker) {
  swingNowOrLater(new Runnable() { public void run() { try { 
    componentPopupMenu_Maker maker = componentPopupMenu_map.get(component);
    if (maker == null) {
      componentPopupMenu_map.put(component, maker = new componentPopupMenu_Maker());
      component.addMouseListener(new componentPopupMenu_Adapter(maker));
    }
    maker.menuMakers.add(menuMaker);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "componentPopupMenu_Maker maker = componentPopupMenu_map.get(component);\r\n    if ..."; }});
}

static class componentPopupMenu_Adapter extends MouseAdapter {
  componentPopupMenu_Maker maker;
  
  componentPopupMenu_Adapter(componentPopupMenu_Maker maker) {
  this.maker = maker;}
  
  public void mousePressed(MouseEvent e) { displayMenu(e); }
  public void mouseReleased(MouseEvent e) { displayMenu(e); }

  void displayMenu(MouseEvent e) {
    if (e.isPopupTrigger()) displayMenu2(e);
  }
    
  void displayMenu2(MouseEvent e) {
    JPopupMenu menu = new JPopupMenu();
    int emptyCount = menu.getComponentCount();
    
    componentPopupMenu_mouseEvent.set(e);
    for (Object menuMaker : maker.menuMakers)
      pcallF(menuMaker, menu);
    
    // show menu if any items in it
    if (menu.getComponentCount() != emptyCount)
      menu.show(e.getComponent(), e.getX(), e.getY());
  }
}
static String n(long l, String name) {
  return l + " " + trim(l == 1 ? singular(name) : getPlural(name));
}

static String n(Collection l, String name) {
  return n(l(l), name);
}

static String n(Map m, String name) {
  return n(l(m), name);
}

static String n(Object[] a, String name) {
  return n(l(a), name);
}


static HashMap<Class, Field[]> getDeclaredFields_cache = new HashMap();

static Field[] getDeclaredFields_cached(Class c) {
  Field[] fields;
  synchronized(getDeclaredFields_cache) {
    fields = getDeclaredFields_cache.get(c);
    if (fields == null) {
      getDeclaredFields_cache.put(c, fields = c.getDeclaredFields());
      for (Field f : fields)
        f.setAccessible(true);
    }
  }
  return fields;
}


static String copyTextToClipboard(String text) {
  StringSelection selection = new StringSelection(text);
  Toolkit.getDefaultToolkit().getSystemClipboard().setContents(selection, selection);
  return text;
}
static String boolArrayToHex(boolean[] a) {
  return bytesToHex(boolArrayToBytes(a));
}
static boolean hasField(Object o, String field) {
  return findField2(o, field) != null;
}
static String thisVMGreeting() {
  List record_list = (List) ( get(getJavaX(), "record_list"));
  Object android = first(record_list); // Should be of class Android3
  return getString(android, "greeting");
}
static <A extends JComponent> A setToolTipText(final A c, final Object toolTip) {
  if (c == null) return null;
  { swingAndWait(new Runnable() { public void run() { try { 
    String s = nullIfEmpty(str(toolTip));
    if (neq(s, c.getToolTipText()))
      c.setToolTipText(s);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "String s = nullIfEmpty(str(toolTip));\r\n    if (neq(s, c.getToolTipText()))\r\n    ..."; }}); }
  return c;
}
  public static String bytesToHex(byte[] bytes) {
    return bytesToHex(bytes, 0, bytes.length);
  }

  public static String bytesToHex(byte[] bytes, int ofs, int len) {
    StringBuilder stringBuilder = new StringBuilder(len*2);
    for (int i = 0; i < len; i++) {
      String s = "0" + Integer.toHexString(bytes[ofs+i]);
      stringBuilder.append(s.substring(s.length()-2, s.length()));
    }
    return stringBuilder.toString();
  }

static boolean isLoopbackIP(String ip) {
  return eq(ip, "127.0.0.1");
}
static Object withDBLock(Object r) {
  mainConcepts.lock.lock();
  try {
    return callF(r);
  } finally {
    mainConcepts.lock.unlock();
  }
}

static <A> A withDBLock(F0<A> r) {
  return (A) withDBLock((Object) r);
}
static int systemHashCode(Object o) {
  return identityHashCode(o);
}
static String or2(String a, String b) {
  return nempty(a) ? a : b;
}
static void revalidate(final Component c) {
  if (c == null || !c.isShowing()) return;
  { swingAndWait(new Runnable() { public void run() { try { 
    // magic combo to actually relayout and repaint
    c.revalidate();
    c.repaint();
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "// magic combo to actually relayout and repaint\r\n    c.revalidate();\r\n    c.repa..."; }}); }
}
// make concept instance that is not connected to DB
static <A extends Concept> A unlisted(Class<A> c, Object... args) {
  concepts_unlisted.set(true);
  try {
    return nuObject(c, args);
  } finally {
    concepts_unlisted.set(null);
  }
}
volatile static boolean conceptsAndBot_running;

static void conceptsAndBot() {
  conceptsAndBot(null);
}

static void conceptsAndBot(Integer autoSaveInterval) {
  if (conceptsAndBot_running) return;
  conceptsAndBot_running = true;
  
  ensureBotIsNotAlreadyRunning(dbBotStandardName());
  if (autoSaveInterval != null)
    loadAndAutoSaveConcepts(autoSaveInterval);
  else
    loadAndAutoSaveConcepts();
  dbBot();
}
static File loadDataSnippetToFile(String snippetID) { try {
  File f = DiskSnippetCache_file(parseSnippetID(snippetID));
  try {
    URL url = new URL(dataSnippetLink(snippetID));
    System.err.println("Loading library: " + hideCredentials(url));
    try {
      loadBinaryPageToFile(openConnection(url), f);
      if (fileSize(f) == 0) throw fail();
    } catch (Throwable _e) {
      url = new URL("http://data.tinybrain.de/blobs/"
        + parseSnippetID(snippetID));
      loadBinaryPageToFile(openConnection(url), f);
    }
    // TODO: check if we hit the "LOADING" message
    if (fileSize(f) == 0) throw fail();
    System.err.println("Bytes loaded: " + fileSize(f));
  } catch (Throwable e) {
    printStackTrace(e);
    throw fail("Binary snippet #" + snippetID + " not found or not public");
  }
  return f;
} catch (Exception __e) { throw rethrow(__e); } }
static Window getWindow(Object o) {
  if (!(o instanceof Component)) return null;
  Component c = (Component) o;
  while (c != null) {
    if (c instanceof Window) return (Window) c;
    c = c.getParent();
  }
  return null;
}
static void warnIfOddCount(Object... list) {
  if (odd(l(list)))
    printStackTrace("Odd list size: " + list);
}
static Object callJavaX(String method, Object... args) {
  return callOpt(getJavaX(), method, args);
}
static ReentrantLock fairLock() {
  return new ReentrantLock(true);
}
static boolean eqic(String a, String b) {
  if ((a == null) != (b == null)) return false;
  if (a == null) return true;
  return a.equalsIgnoreCase(b);
}
static Field setOpt_findField(Class c, String field) {
  HashMap<String, Field> map;
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  return map.get(field);
}

static void setOpt(Object o, String field, Object value) { try {
  if (o == null) return;
  
  Class c = o.getClass();
  HashMap<String, Field> map;
  
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  
  if (map == getOpt_special) {
    if (o instanceof Class) {
      setOpt((Class) o, field, value);
      return;
    }
    
    // It's probably a subclass of Map. Use raw method
    setOpt_raw(o, field, value);
    return;
  }
  
  Field f = map.get(field);
  if (f != null)
    smartSet(f, o, value); // possible improvement: skip setAccessible
} catch (Exception __e) { throw rethrow(__e); } }

static void setOpt(Class c, String field, Object value) {
  if (c == null) return;
  try {
    Field f = setOpt_findStaticField(c, field);
    if (f != null)
      smartSet(f, null, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}
  
static Field setOpt_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static void copyStream(InputStream in, OutputStream out) { try {
  byte[] buf = new byte[65536];
  while (true) {
    int n = in.read(buf);
    if (n <= 0) return;
    out.write(buf, 0, n);
  }
} catch (Exception __e) { throw rethrow(__e); } }
static String struct(Object o) {
  return structure(o);
}

static String struct(Object o, structure_Data data) {
  return structure(o, data);
}
static File DiskSnippetCache_file(long snippetID) {
  return new File(getGlobalCache(), "data_" + snippetID + ".jar");
}
  
  // Data files are immutable, use centralized cache
public static File DiskSnippetCache_getLibrary(long snippetID) throws IOException {
  File file = DiskSnippetCache_file(snippetID);
  return file.exists() ? file : null;
}

public static void DiskSnippetCache_putLibrary(long snippetID, byte[] data) throws IOException {
  saveBinaryFile(DiskSnippetCache_file(snippetID), data);
}

static byte[] loadDataSnippetImpl(String snippetID) throws IOException {
  byte[] data;
  try {
    URL url = new URL("http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_"
      + parseSnippetID(snippetID) + "&contentType=application/binary");
    System.err.println("Loading library: " + url);
    try {
      data = loadBinaryPage(url.openConnection());
    } catch (RuntimeException e) {
      data = null;
    }
    
    if (data == null || data.length == 0) {
      url = new URL("http://data.tinybrain.de/blobs/"
        + parseSnippetID(snippetID));
      System.err.println("Loading library: " + url);
      data = loadBinaryPage(url.openConnection());
    }
    System.err.println("Bytes loaded: " + data.length);
  } catch (FileNotFoundException e) {
    throw new IOException("Binary snippet #" + snippetID + " not found or not public");
  }
  return data;
}
static void swingLater(long delay, final Object r) {
  javax.swing.Timer timer = new javax.swing.Timer(toInt(delay), actionListener(r));
  timer.setRepeats(false);
  timer.start();
}

static void swingLater(Object r) {
  SwingUtilities.invokeLater(toRunnable(r));
}

static Class getOuterClass(Class c) { try {
  String s = c.getName();
  int i = s.lastIndexOf('$');
  return Class.forName(substring(s, 0, i));
} catch (Exception __e) { throw rethrow(__e); } }
static void sleepInCleanUp(long ms) { try {
  if (ms < 0) return;
  Thread.sleep(ms);
} catch (Exception __e) { throw rethrow(__e); } }
static String shortenClassName(String name) {
  if (name == null) return null;
  int i = lastIndexOf(name, "$");
  if (i < 0) i = lastIndexOf(name, ".");
  return i < 0 ? name : substring(name, i+1);
}
static boolean odd(int i) {
  return (i & 1) != 0;
}
static <A> List<A> newSubList(List<A> l, int startIndex, int endIndex) {
  return cloneList(subList(l, startIndex, endIndex));
}

static <A> List<A> newSubList(List<A> l, int startIndex) {
  return cloneList(subList(l, startIndex));
}
static void addMenuItem(JPopupMenu menu, String text, Object action) {
  menu.add(jmenuItem(text, action));
}

static void addMenuItem(JPopupMenu menu, JMenuItem menuItem) {
  menu.add(menuItem);
}
static String sendToThisVM_newThread(String s, Object... args) {
  final String _s = format(s, args);
  try {
    return (String) evalInNewThread(new Object() { Object get() { try { return 
      callStaticAnswerMethod(getJavaX(), _s)
    ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "callStaticAnswerMethod(getJavaX(), _s)"; }});
  } catch (Throwable e) {
    e = getInnerException(e);
    printStackTrace(e);
    return str(e);
  }
}
  public static boolean isSnippetID(String s) {
    try {
      parseSnippetID(s);
      return true;
    } catch (RuntimeException e) {
      return false;
    }
  }
static void nohupJavax(final String javaxargs) {
  { Thread _t_3 = new Thread() {
public void run() { try { call(hotwireOnce("#1008562"), "nohupJavax", javaxargs); } catch (Throwable __e) { printStackTrace2(__e); } }
};
startThread(_t_3); }
}

static void nohupJavax(final String javaxargs, final String vmArgs) {
  { Thread _t_4 = new Thread() {
public void run() { try { call(hotwireOnce("#1008562"), "nohupJavax", javaxargs, vmArgs); } catch (Throwable __e) { printStackTrace2(__e); } }
};
startThread(_t_4); }
}
static JFrame showFrame() {
  return makeFrame();
}

static JFrame showFrame(Object content) {
  return makeFrame(content);
}

static JFrame showFrame(String title) {
  return makeFrame(title);
}

static JFrame showFrame(String title, Object content) {
  return makeFrame(title, content);
}

static JFrame showFrame(final JFrame frame) {
  if (frame != null) { swingAndWait(new Runnable() { public void run() { try { 
    if (frameTooSmall(frame)) frameStandardSize(frame);
    frame.setVisible(true);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (frameTooSmall(frame)) frameStandardSize(frame);\r\n    frame.setVisible(true);"; }}); }
  return frame;
}

// make or update frame
static JFrame showFrame(String title, Object content, JFrame frame) {
  if (frame == null)
    return showFrame(title, content);
  else {
    frame.setTitle(title);
    setFrameContents(frame, content);
    return frame;
  }
}
static <A> A popFirst(List<A> l) {
  if (empty(l)) return null;
  A a = first(l);
  l.remove(0);
  return a;
}
static List<Class> getClasses(Object[] array) {
  List<Class> l = new ArrayList();
  for (Object o : array) l.add(_getClass(o));
  return l;
}
static boolean endsWithLetter(String s) {
  return nempty(s) && isLetter(last(s));
}
static int max(int a, int b) { return Math.max(a, b); }
static int max(int a, int b, int c) { return max(max(a, b), c); }
static long max(int a, long b) { return Math.max((long) a, b); }
static long max(long a, long b) { return Math.max(a, b); }
static double max(int a, double b) { return Math.max((double) a, b); }
static float max(float a, float b) { return Math.max(a, b); }

static int max(Collection<Integer> c) {
  int x = Integer.MIN_VALUE;
  for (int i : c) x = max(x, i);
  return x;
}

static double max(double[] c) {
  if (c.length == 0) return Double.MIN_VALUE;
  double x = c[0];
  for (int i = 1; i < c.length; i++) x = Math.max(x, c[i]);
  return x;
}

static float max(float[] c) {
  if (c.length == 0) return Float.MAX_VALUE;
  float x = c[0];
  for (int i = 1; i < c.length; i++) x = Math.max(x, c[i]);
  return x;
}

static byte max(byte[] c) {
  byte x = -128;
  for (byte d : c) if (d > x) x = d;
  return x;
}

static short max(short[] c) {
  short x = -0x8000;
  for (short d : c) if (d > x) x = d;
  return x;
}
static String getSnippetTitle(String id) { try {
  if (id == null) return null;
  if (!isSnippetID(id)) return "?";
  long parsedID = parseSnippetID(id);
  String url;
  if (isImageServerSnippet(parsedID))
    url = "http://ai1.lol/images/raw/title/" + parsedID;
  else
    url = "http://tinybrain.de:8080/tb-int/getfield.php?id=" + parsedID + "&field=title" + standardCredentials();
  return trim(loadPageSilently(url));
} catch (Exception __e) { throw rethrow(__e); } }

static String getSnippetTitle(long id) {
  return getSnippetTitle(fsI(id));
}

static WeakHashMap<Class, HashMap<String, Method>> callOpt_noArgs_cache = new WeakHashMap();

static Object callOpt_noArgs(Object o, String method) { try {
  if (o == null) return null;
  if (o instanceof Class)
    return callOpt(o, method); // not optimized
  
  Class c = o.getClass();
  HashMap<String, Method> map;
  synchronized(callOpt_noArgs_cache) {
    map = callOpt_noArgs_cache.get(c);
    if (map == null)
      map = callOpt_noArgs_makeCache(c);
  }

  Method m = map.get(method);
  return m != null ? m.invoke(o) : null;
} catch (Exception __e) { throw rethrow(__e); } }

// used internally - we are in synchronized block
static HashMap<String, Method> callOpt_noArgs_makeCache(Class c) {
  HashMap<String,Method> map = new HashMap();
  Class _c = c;
  do {
    for (Method m : c.getDeclaredMethods())
      if (m.getParameterTypes().length == 0) {
        m.setAccessible(true);
        String name = m.getName();
        if (!map.containsKey(name))
          map.put(name, m);
      }
    _c = _c.getSuperclass();
  } while (_c != null);
  callOpt_noArgs_cache.put(c, map);
  return map;
}
static void quoteToPrintWriter(String s, PrintWriter out) {
  if (s == null) { out.print("null"); return; }
  out.print('"');
  int l = s.length();
  for (int i = 0; i < l; i++) {
    char c = s.charAt(i);
    if (c == '\\' || c == '"') {
      out.print('\\'); out.print(c);
    } else if (c == '\r')
      out.print("\\r");
    else if (c == '\n')
      out.print("\\n");
    else
      out.print(c);
  }
  out.print('"');
}
static JTextField onEnter(JTextField tf, final Object action) {
  if (action == null || tf == null) return tf;
  tf.addActionListener(actionListener(action));
  return tf;
}

static JButton onEnter(JButton btn, final Object action) {
  if (action == null || btn == null) return btn;
  btn.addActionListener(actionListener(action));
  return btn;
}

static JList onEnter(JList list, final Object action) {
  list.addKeyListener(new KeyAdapter() {
    public void keyReleased(KeyEvent ke) {
      if (ke.getKeyCode() == KeyEvent.VK_ENTER)
        pcallF(action);
    }
  });
  return list;
}

static long fileSize(String path) { return getFileSize(path); }
static long fileSize(File f) { return getFileSize(f); }

static <A extends Concept> A uniq(Class<A> c, Object... params) {
  return uniqueConcept(c, params);
}

static <A extends Concept> A uniq(Concepts cc, Class<A> c, Object... params) {
  return uniqueConcept(cc, c, params);
}
static List collect(Collection c, String field) {
  return collectField(c, field);
}

static List collect(String field, Collection c) {
  return collectField(c, field);
}


static List collect(Class c, String field) {
  return collect(list(c), field);
}

static boolean containsNewLine(String s) {
  return contains(s, '\n'); // screw \r, nobody needs it
}
public static long parseSnippetID(String snippetID) {
  long id = Long.parseLong(shortenSnippetID(snippetID));
  if (id == 0) throw fail("0 is not a snippet ID");
  return id;
}
static final WeakHashMap<Class, HashMap<String, Field>> getOpt_cache = new WeakHashMap();
static final HashMap getOpt_special = new HashMap(); // just a marker

static {
  getOpt_cache.put(Class.class, getOpt_special);
  getOpt_cache.put(String.class, getOpt_special);
}

static Object getOpt_cached(Object o, String field) { try {
  if (o == null) return null;

  Class c = o.getClass();
  HashMap<String, Field> map;
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  
  if (map == getOpt_special) {
    if (o instanceof Class)
      return getOpt((Class) o, field);
    /*if (o instanceof S)
      ret getOpt(getBot((S) o), field);*/
    if (o instanceof Map)
      return ((Map) o).get(field);
  }
    
  Field f = map.get(field);
  if (f != null) return f.get(o);
  
    if (o instanceof DynamicObject)
      return ((DynamicObject) o).fieldValues.get(field);
  
  return null;
} catch (Exception __e) { throw rethrow(__e); } }

// used internally - we are in synchronized block
static HashMap<String, Field> getOpt_makeCache(Class c) {
  HashMap<String, Field> map;
  if (isSubtypeOf(c, Map.class))
    map = getOpt_special;
  else {
    map = new HashMap();
    Class _c = c;
    do {
      for (Field f : _c.getDeclaredFields()) {
        f.setAccessible(true);
        String name = f.getName();
        if (!map.containsKey(name))
          map.put(name, f);
      }
      _c = _c.getSuperclass();
    } while (_c != null);
  }
  getOpt_cache.put(c, map);
  return map;
}
static Dimension getScreenSize() {
  return Toolkit.getDefaultToolkit().getScreenSize();
}
static List<String> dropPunctuation_keep = litlist("*", "<", ">");

static List<String> dropPunctuation(List<String> tok) {
  tok = new ArrayList<String>(tok);
  for (int i = 1; i < tok.size(); i += 2) {
    String t = tok.get(i);
    if (t.length() == 1 && !Character.isLetter(t.charAt(0)) && !Character.isDigit(t.charAt(0)) && !dropPunctuation_keep.contains(t)) {
      tok.set(i-1, tok.get(i-1) + tok.get(i+1));
      tok.remove(i);
      tok.remove(i);
      i -= 2;
    }
  }
  return tok;
}

static String dropPunctuation(String s) {
  return join(dropPunctuation(nlTok(s)));
}
static int parseHexByte(String s) {
  return Integer.parseInt(s, 16);
}
static File userDir() {
  return new File(userHome());
}

static File userDir(String path) {
  return new File(userHome(), path);
}
static int stdcompare(Number a, Number b) {
  return cmp(a, b);
}

static int stdcompare(String a, String b) {
  return cmp(a, b);
}

static int stdcompare(long a, long b) {
  return a < b ? -1 : a > b ? 1 : 0;
}

static int stdcompare(Object a, Object b) {
  return cmp(a, b);
}

static boolean startsWith(String a, String b) {
  return a != null && a.startsWith(b);
}


  static boolean startsWith(String a, String b, Matches m) {
    if (!startsWith(a, b)) return false;
    m.m = new String[] {substring(a, l(b))};
    return true;
  }


static boolean startsWith(List a, List b) {
  if (a == null || l(b) > l(a)) return false;
  for (int i = 0; i < l(b); i++)
    if (neq(a.get(i), b.get(i)))
      return false;
  return true;
}




static String trim(String s) { return s == null ? null : s.trim(); }
static String trim(StringBuilder buf) { return buf.toString().trim(); }
static String trim(StringBuffer buf) { return buf.toString().trim(); }
static String shortenSnippetID(String snippetID) {
  if (snippetID.startsWith("#"))
    snippetID = snippetID.substring(1);
  String httpBlaBla = "http://tinybrain.de/";
  if (snippetID.startsWith(httpBlaBla))
    snippetID = snippetID.substring(httpBlaBla.length());
  return "" + parseLong(snippetID);
}
static <A extends Concept> A uniqueConcept(Class<A> c, Object... params) {
  return uniqueConcept(mainConcepts, c, params);
}

static <A extends Concept> A uniqueConcept(Concepts cc, Class<A> c, Object... params) {
  params = expandParams(c, params);
  A x = findConceptWhere(cc, c, params);
  if (x == null) {
    x = nuObject(c);
    csetAll(x, params);
  }
  return x;
}
static List<String> getPlural_specials = ll("sheep", "fish");

static String getPlural(String s) {
  if (containsIgnoreCase(getPlural_specials, s)) return s;
  if (ewic(s, "y")) return dropSuffixIgnoreCase("y", s) + "ies";
  if (ewic(s, "ss")) return s + "es";
  if (ewic(s, "s")) return s;
  return s + "s";
}
static boolean contains(Collection c, Object o) {
  return c != null && c.contains(o);
}

static boolean contains(Object[] x, Object o) {
  if (x != null)
    for (Object a : x)
      if (eq(a, o))
        return true;
  return false;
}

static boolean contains(String s, char c) {
  return s != null && s.indexOf(c) >= 0;
}

static boolean contains(String s, String b) {
  return s != null && s.indexOf(b) >= 0;
}
static boolean isImageServerSnippet(long id) {
  return id >= 1100000 && id < 1200000;
}
static Class<?> _getClass(String name) {
  try {
    return Class.forName(name);
  } catch (ClassNotFoundException e) {
    return null; // could optimize this
  }
}

static Class _getClass(Object o) {
  return o == null ? null
    : o instanceof Class ? (Class) o : o.getClass();
}

static Class _getClass(Object realm, String name) { try {
  return getClass(realm).getClassLoader().loadClass(classNameToVM(name));
} catch (Exception __e) { throw rethrow(__e); } }
static URLConnection openConnection(URL url) { try {
  ping();
  callOpt(javax(), "recordOpenURLConnection", str(url));
  return url.openConnection();
} catch (Exception __e) { throw rethrow(__e); } }
static <A> ArrayList<A> list(A[] a) {
  return asList(a);
}

static ArrayList<Integer> list(int[] a) {
  return asList(a);
}

static <A> ArrayList<A> list(Set<A> s) {
  return asList(s);
}
  /** writes safely (to temp file, then rename) */
  public static void saveBinaryFile(String fileName, byte[] contents) throws IOException {
    File file = new File(fileName);
    File parentFile = file.getParentFile();
    if (parentFile != null)
      parentFile.mkdirs();
    String tempFileName = fileName + "_temp";
    FileOutputStream fileOutputStream = newFileOutputStream(tempFileName);
    fileOutputStream.write(contents);
    fileOutputStream.close();
    if (file.exists() && !file.delete())
      throw new IOException("Can't delete " + fileName);

    if (!new File(tempFileName).renameTo(file))
      throw new IOException("Can't rename " + tempFileName + " to " + fileName);
  }

  static void saveBinaryFile(File fileName, byte[] contents) {
    try {
      saveBinaryFile(fileName.getPath(), contents);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
static void frameStandardSize(JFrame frame) {
  frame.setBounds(300, 100, 500, 400);
}
static String getString(Map map, Object key) {
  return map == null ? null : (String) map.get(key);
}

static String getString(List l, int idx) {
  return (String) get(l, idx);
}

static String getString(Object o, Object key) {
  if (o instanceof Map) return getString((Map) o, key);
  if (key instanceof String)
    return (String) getOpt(o, (String) key);
  throw fail("Not a string key: " + getClassName(key));
}
static List<String> nlTok(String s) {
  return javaTokPlusPeriod(s);
}
static String dataSnippetLink(String snippetID) {
  long id = parseSnippetID(snippetID);
  if (id >= 1200000 && id < 1300000) {
    String pw = muricaPassword();
    if (empty(pw)) throw fail("Please set 'murica password by running #1008829");
    return "http://ai1.lol/1008823/raw/" + id + "?_pass=" + pw; // XXX, although it typically gets hidden when printing
  } else
    return "http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_"
      + id + "&contentType=application/binary";
}
static long getFileSize(String path) {
  return path == null ? 0 : new File(path).length();
}

static long getFileSize(File f) {
  return f == null ? 0 : f.length();
}
static int identityHashCode(Object o) {
  return System.identityHashCode(o);
}
static String fsI(String id) {
  return formatSnippetID(id);
}

static String fsI(long id) {
  return formatSnippetID(id);
}
static boolean isSubtypeOf(Class a, Class b) {
  return b.isAssignableFrom(a); // << always hated that method, let's replace it!
}
static int cmp(Number a, Number b) {
  return a == null ? b == null ? 0 : -1 : cmp(a.doubleValue(), b.doubleValue());
}

static int cmp(double a, double b) {
  return a < b ? -1 : a == b ? 0 : 1;
}

static int cmp(String a, String b) {
  return a == null ? b == null ? 0 : -1 : a.compareTo(b);
}

static int cmp(Object a, Object b) {
  if (a == null) return b == null ? 0 : -1;
  if (b == null) return 1;
  return ((Comparable) a).compareTo(b);
}
static ThreadLocal<String> loadPage_charset = new ThreadLocal();
static boolean loadPage_allowGzip = true, loadPage_debug;
static boolean loadPage_anonymous; // don't send computer ID
static int loadPage_verboseness = 100000;
static int loadPage_retries = 60; // seconds
static ThreadLocal<Boolean> loadPage_silent = new ThreadLocal();

public static String loadPageSilently(String url) { try {
  return loadPageSilently(new URL(loadPage_preprocess(url)));
} catch (Exception __e) { throw rethrow(__e); } }

public static String loadPageSilently(URL url) { try {
  IOException e = null;
  for (int tries = 0; tries < loadPage_retries; tries++)
    try {
      URLConnection con = openConnection(url);
      return loadPage(con, url);
    } catch (IOException _e) {
      e = _e;
      if (loadPageThroughProxy_enabled) {
        print("Trying proxy because of: " + e);
        try {
          return loadPageThroughProxy(str(url));
        } catch (Throwable e2) {
          print("  " + exceptionToStringShort(e2));
        }
      } else if (loadPage_debug)
        print(e);
      sleepSeconds(1);
    }
  throw e;
} catch (Exception __e) { throw rethrow(__e); } }

static String loadPage_preprocess(String url) {  
  if (url.startsWith("tb/"))
    url = "tinybrain.de:8080/" + url;
  if (url.indexOf("://") < 0)
    url = "http://" + url;
  return url;
}

public static String loadPage(String url) { try {
  url = loadPage_preprocess(url);
  if (!isTrue(loadPage_silent.get()))
    print("Loading: " + hideCredentials(url));
  return loadPageSilently(new URL(url));
} catch (Exception __e) { throw rethrow(__e); } }

public static String loadPage(URL url) {
  print("Loading: " + hideCredentials(url.toExternalForm()));
  return loadPageSilently(url);
}

public static String loadPage(URLConnection con, URL url) throws IOException {
  try {
    if (!loadPage_anonymous)
      setHeaders(con);
    if (loadPage_allowGzip)
      con.setRequestProperty("Accept-Encoding", "gzip");
    con.setRequestProperty("X-No-Cookies", "1");
  } catch (Throwable e) {} // fails if within doPost
  String contentType = con.getContentType();
  if (contentType == null)
    throw new IOException("Page could not be read: " + url);
  //print("Content-Type: " + contentType);
  String charset = loadPage_charset == null ? null : loadPage_charset.get();
  if (charset == null) charset = loadPage_guessCharset(contentType);
  
  InputStream in = con.getInputStream();
  try {
    if ("gzip".equals(con.getContentEncoding())) {
      if (loadPage_debug)
        print("loadPage: Using gzip.");
      in = new GZIPInputStream(in);
    }
    Reader r = new InputStreamReader(in, charset);
    
    StringBuilder buf = new StringBuilder();
    int n = 0;
    while (true) {
      int ch = r.read();
      if (ch < 0)
        break;
      buf.append((char) ch);
      ++n;
      if ((n % loadPage_verboseness) == 0) print("  " + n + " chars read");
    }
    return buf.toString();
  } finally { in.close(); }
}

static String loadPage_guessCharset(String contentType) {
  Pattern p = Pattern.compile("text/[a-z]+;\\s*charset=([^\\s]+)\\s*");
  Matcher m = p.matcher(contentType);
  String match = m.matches() ? m.group(1) : null;
  if (loadPage_debug)
    print("loadPage: contentType=" + contentType + ", match: " + match);
  /* If Content-Type doesn't match this pre-conception, choose default and hope for the best. */
  return or(match, "ISO-8859-1");
}

static void loadBinaryPageToFile(String url, File file) { try {
  print("Loading " + url);
  loadBinaryPageToFile(openConnection(new URL(url)), file);
} catch (Exception __e) { throw rethrow(__e); } }

static void loadBinaryPageToFile(URLConnection con, File file) { try {
  setHeaders(con);
  loadBinaryPageToFile_noHeaders(con, file);
} catch (Exception __e) { throw rethrow(__e); } }

static void loadBinaryPageToFile_noHeaders(URLConnection con, File file) { try {
  File ftemp = new File(f2s(file) + "_temp");
  FileOutputStream buf = newFileOutputStream(mkdirsFor(ftemp));
  InputStream inputStream = con.getInputStream();
  try {
    long len = 0;
    try { len = con.getContentLengthLong(); } catch (Throwable e) { printStackTrace(e); }
    int n = 0;
    while (true) {
      int ch = inputStream.read();
      if (ch < 0)
        break;
      buf.write(ch);
      if (++n % 100000 == 0)
        println("  " + n + (len != 0 ? "/" + len : "") + " bytes loaded.");
    }
    buf.close();
    buf = null;
    file.delete();
    ftemp.renameTo(file);
    inputStream.close();
  } finally {
    if (buf != null) buf.close();
  }
} catch (Exception __e) { throw rethrow(__e); } }

static String nullIfEmpty(String s) {
  return isEmpty(s) ? null : s;
}
static volatile Android3 dbBot_instance;

static Android3 dbBot() {
  return dbBot(dbBotStandardName());
}

static Android3 dbBot(String name) {
  ensureBotIsNotAlreadyRunning(name);
  assertNotNull(mainConcepts);
  return dbBot_instance = methodsBot2(name, mainConcepts, exposedDBMethods, mainConcepts.lock);
}
static Object evalInNewThread(final Object f) {
  final Flag flag = new Flag();
  final Var var = new Var();
  final Var<Throwable> exception = new Var();
  { Thread _t_5 = new Thread() {
public void run() { try {
    try {
      var.set(callF(f));
    } catch (Throwable e) {
      exception.set(e);
    }
    flag.raise();
  } catch (Throwable __e) { printStackTrace2(__e); } }
};
startThread(_t_5); }
  flag.waitUntilUp();
  if (exception.has()) throw rethrow(exception.get());
  return var.get();
}
static String dbBotStandardName() {
  return dbBotName(getDBProgramID()) + ".";
}
static byte[] loadBinaryPage(String url) { try {
  print("Loading " + url);
  return loadBinaryPage(new URL(url).openConnection());
} catch (Exception __e) { throw rethrow(__e); } }

static byte[] loadBinaryPage(URLConnection con) { try {
  setHeaders(con);
  return loadBinaryPage_noHeaders(con);
} catch (Exception __e) { throw rethrow(__e); } }

static byte[] loadBinaryPage_noHeaders(URLConnection con) { try {
  ByteArrayOutputStream buf = new ByteArrayOutputStream();
  InputStream inputStream = con.getInputStream();
  long len = 0;
  try { len = con.getContentLengthLong(); } catch (Throwable e) { printStackTrace(e); }
  int n = 0;
  while (true) {
    int ch = inputStream.read();
    if (ch < 0)
      break;
    buf.write(ch);
    if (++n % 100000 == 0)
      println("  " + n + (len != 0 ? "/" + len : "") + " bytes loaded.");
  }
  inputStream.close();
  return buf.toByteArray();
} catch (Exception __e) { throw rethrow(__e); } }

static void ensureBotIsNotAlreadyRunning(String name) {
  if (hasBot(name))
    throw fail("Bot already running [" + name + "]");
}
static WeakHashMap<JFrame,Boolean> makeFrame_myFrames = new WeakHashMap();

static JFrame makeFrame() {
  return makeFrame((Component) null);
}

static JFrame makeFrame(Object content) {
  return makeFrame(programTitle(), content);
}

static JFrame makeFrame(String title) {
  return makeFrame(title, null);
}

static JFrame makeFrame(String title, Object content) {
  return makeFrame(title, content, true);
}

static JFrame makeFrame(final String title, final Object content, final boolean showIt) {
  return (JFrame) swing(new Object() { Object get() { try { 
    if (getFrame(content) != null)
      return setFrameTitle((Component) content, title);
    final JFrame frame = new JFrame(title);
    makeFrame_myFrames.put(frame, Boolean.TRUE);
    JComponent wrapped = wrap(content);
    if (wrapped != null)
      frame.getContentPane().add(wrapped);
    frame.setBounds(300, 100, 500, 400);
    if (showIt)
      frame.setVisible(true);
    //callOpt(content, "requestFocus");
    //exitOnFrameClose(frame);
    
    standardTitlePopupMenu(frame);
    return frame;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "if (getFrame(content) != null)\r\n      ret setFrameTitle((Component) content, tit..."; }});
}
static void setFrameContents(Component c, Object contents) {
  JFrame frame = getFrame(c);
  frame.getContentPane().removeAll();
  frame.getContentPane().add(wrap(contents));
  revalidate(frame);
}
static String standardCredentials() {
  String user = standardCredentialsUser();
  String pass = standardCredentialsPass();
  if (nempty(user) && nempty(pass))
    return "&_user=" + urlencode(user) + "&_pass=" + urlencode(pass);
  return "";
}
static Map<String, String> singular_specials = litmap(
  "children", "child", "images", "image", "chess", "chess");
  
static Set<String> singular_specials2 = litset("time", "machine");

static String singular(String s) {
  if (s == null) return null;
  { String _a_5 = singular_specials.get(s); if (!empty(_a_5)) return _a_5; }
  if (singular_specials2.contains(dropSuffix("s", s)))
    return dropSuffix("s", s);
  if (s.endsWith("ness")) return s;
  if (s.endsWith("ges")) return dropSuffix("s", s);
  s = dropSuffix("es", s);
  s = dropSuffix("s", s);
  return s;
}
static String hideCredentials(URL url) { return url == null ? null : hideCredentials(str(url)); }

static String hideCredentials(String url) {
  return url.replaceAll("([&?])_pass=[^&]*", "$1_pass=<hidden>");
}
static List collectField(Collection c, String field) {
  List l = new ArrayList();
  for (Object a : c)
    l.add(getOpt(a, field));
  return l;
}
static File getGlobalCache() {
  File file = new File(javaxCachesDir(), "Binary Snippets");
  file.mkdirs();
  return file;
}

static boolean frameTooSmall(JFrame frame) {
  return frame.getWidth() < 100 || frame.getHeight() < 50;
}
static Runnable toRunnable(final Object o) {
  if (o instanceof Runnable) return (Runnable) o;
  return new Runnable() { public void run() { try {  callF(o) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "callF(o)"; }};
}
static int lastIndexOf(String a, String b) {
  return a == null || b == null ? -1 : a.lastIndexOf(b);
}
static Field findField2(Object o, String field) {
  if (o instanceof Class) return findField2_findStaticField((Class) o, field);
  return findField2_findField(o.getClass(), field);
}

static Field findField2_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}

static Field findField2_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static void setOpt_raw(Object o, String field, Object value) {
  if (o == null) return;
  if (o instanceof Class) setOpt_raw((Class) o, field, value);
  else try {
    Field f = setOpt_raw_findField(o.getClass(), field);
    if (f != null)
      smartSet(f, o, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static void setOpt_raw(Class c, String field, Object value) {
  if (c == null) return;
  try {
    Field f = setOpt_raw_findStaticField(c, field);
    if (f != null)
      smartSet(f, null, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}
  
static Field setOpt_raw_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}

static Field setOpt_raw_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static byte[] boolArrayToBytes(boolean[] a) {
  byte[] b = new byte[(l(a)+7)/8];
  for (int i = 0; i < l(a); i++)
    if (a[i])
      b[i/8] |= 1 << (i & 7);
  return b;
}
static JMenuItem jmenuItem(String text, final Object r) {
  JMenuItem mi = new JMenuItem(text);
  mi.addActionListener(actionListener(r));
  return mi;
}
static <A, B> void multiMapPut(Map<A, List<B>> map, A a, B b) {
  List<B> l = map.get(a);
  if (l == null)
    map.put(a, l = new ArrayList());
  l.add(b);
}
static boolean isLetter(char c) {
  return Character.isLetter(c);
}
static Class hotwireOnce(String programID) {
  return hotwireCached(programID, false);
}


static TreeMap<String,Class> hotwireCached_cache = new TreeMap();

static Class hotwireCached(String programID) {
  return hotwireCached(programID, true);
}

static synchronized Class hotwireCached(String programID, boolean runMain) {
  programID = formatSnippetID(programID);
  Class c = hotwireCached_cache.get(programID);
  if (c == null) {
    c = hotwire(programID);
    if (runMain)
      callMain(c);
    hotwireCached_cache.put(programID, c);
  }
  return c;
}
static <A> HashSet<A> litset(A... items) {
  return lithashset(items);
}
static String dropSuffixIgnoreCase(String suffix, String s) {
  return ewic(s, suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
static void setHeaders(URLConnection con) throws IOException {
  String computerID = getComputerID_quick();
  if (computerID != null) try {
    con.setRequestProperty("X-ComputerID", computerID);
    con.setRequestProperty("X-OS", System.getProperty("os.name") + " " + System.getProperty("os.version"));
  } catch (Throwable e) {
    //printShortException(e);
  }
}
static String exceptionToStringShort(Throwable e) {
  e = getInnerException(e);
  String msg = unnull(e.getMessage());
  if (msg.indexOf("Error") < 0 && msg.indexOf("Exception") < 0)
    return baseClassName(e) + ": " + msg;
  else
    return msg;
}
static <A extends Concept> A findConceptWhere(Class<A> c, Object... params) {
  return findConceptWhere(mainConcepts, c, params);
}

static <A extends Concept> A findConceptWhere(Concepts concepts, Class<A> c, Object... params) {
  params = expandParams(c, params);
  
  // indexed
  if (concepts.fieldIndices != null)
    for (int i = 0; i < l(params); i += 2) {
      IFieldIndex<A, Object> index = concepts.getFieldIndex(c, (String) params[i]);
      if (index != null)
        for (A x : index.getAll(params[i+1]))
          if (checkConceptFields(x, params)) return x;
    }
    
  // table scan
  for (A x : concepts.list(c)) if (checkConceptFields(x, params)) return x;
  return null;
}

static Concept findConceptWhere(Concepts concepts, String c, Object... params) {
  for (Concept x : concepts.list(c)) if (checkConceptFields(x, params)) return x;
  return null;
}

static Class javax() {
  return getJavaX();
}
static String dbBotName(String progID) {
  return fsI(progID) + " Concepts";
}
static boolean containsIgnoreCase(List<String> l, String s) {
  for (String x : l)
    if (eqic(x, s))
      return true;
  return false;
}

static boolean containsIgnoreCase(String[] l, String s) {
  for (String x : l)
    if (eqic(x, s))
      return true;
  return false;
}

static boolean containsIgnoreCase(String s, char c) {
  return indexOfIgnoreCase(s, String.valueOf(c)) >= 0;
}

static boolean containsIgnoreCase(String a, String b) {
  return indexOfIgnoreCase(a, b) >= 0;
}
static String urlencode(String x) {
  try {
    return URLEncoder.encode(unnull(x), "UTF-8");
  } catch (UnsupportedEncodingException e) { throw new RuntimeException(e); }
}
static Map litmap(Object... x) {
  TreeMap map = new TreeMap();
  litmap_impl(map, x);
  return map;
}

static void litmap_impl(Map map, Object... x) {
  for (int i = 0; i < x.length-1; i += 2)
    if (x[i+1] != null)
      map.put(x[i], x[i+1]);
}
static <A extends Component> A setFrameTitle(A c, String title) {
  JFrame f = getFrame(c);
  if (f == null)
    showFrame(title, c);
  else
    f.setTitle(title);
  return c;
}

static <A extends Component> A setFrameTitle(String title, A c) {
  return setFrameTitle(c, title);
}

// magically find a field called "frame" in main class :-)
static JFrame setFrameTitle(String title) {
  Object f = getOpt(mc(), "frame");
  if (f instanceof JFrame)
    return setFrameTitle((JFrame) f, title);
  return null;
}
static boolean ewic(String a, String b) {
  return endsWithIgnoreCase(a, b);
}
static String getDBProgramID_id;

static String getDBProgramID() {
  return nempty(getDBProgramID_id) ? getDBProgramID_id : programID();
}
static String f2s(File f) {
  return f == null ? null : f.getAbsolutePath();
}
static String programTitle() {
  return getProgramName();
}
static <A> A println(A a) {
  return print(a);
}
static <A extends Concept> Object[] expandParams(Class<A> c, Object[] params) {
  if (l(params) == 1)
    params = new Object[] { singleFieldName(c), params[0] };
  else
    warnIfOddCount(params);
  return params;
}

public static File mkdirsFor(File file) {
  return mkdirsForFile(file);
}

static RuntimeException rethrow(Throwable e) {
  throw asRuntimeException(e);
}
static <A> A or(A a, A b) {
  return a != null ? a : b;
}
static <A> A assertNotNull(A a) {
  assertTrue(a != null);
  return a;
}

static <A> A assertNotNull(String msg, A a) {
  assertTrue(msg, a != null);
  return a;
}
static String classNameToVM(String name) {
  return name.replace(".", "$");
}
static String muricaPassword() {
  return trim(loadTextFile(muricaPasswordFile()));
}
static void standardTitlePopupMenu(final JFrame frame) {
  // standard right-click behavior on titles
  if (isSubstanceLAF())
    titlePopupMenu(frame,
      new Object() { void get(JPopupMenu menu) { try { 
        boolean alwaysOnTop = frame.isAlwaysOnTop();
        menu.add(jmenuItem("Restart Program", "restart"));
        menu.add(jmenuItem("Duplicate Program", "duplicateThisProgram"));
        menu.add(jmenuItem("Show Console", "showConsole"));
        menu.add(jCheckBoxMenuItem("Always On Top", alwaysOnTop, new Runnable() { public void run() { try { 
          toggleAlwaysOnTop(frame) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "toggleAlwaysOnTop(frame)"; }}));
        menu.add(jMenuItem("Shoot Window", new Runnable() { public void run() { try {  shootWindowGUI_external(frame, 500) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "shootWindowGUI_external(frame, 500)"; }}));
       } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "bool alwaysOnTop = frame.isAlwaysOnTop();\r\n        menu.add(jmenuItem(\"Restart P..."; }});
}
static String standardCredentialsUser() {
  return trim(loadTextFile(new File(userHome(), ".tinybrain/username")));
}
static File javaxCachesDir_dir; // can be set to work on different base dir

static File javaxCachesDir() {
  return javaxCachesDir_dir != null ? javaxCachesDir_dir : new File(userHome(), "JavaX-Caches");
}
static final boolean loadPageThroughProxy_enabled = false;

static String loadPageThroughProxy(String url) {
  return null;
}
static Class<?> getClass(String name) {
  try {
    return Class.forName(name);
  } catch (ClassNotFoundException e) {
    return null;
  }
}

static Class getClass(Object o) {
  return o instanceof Class ? (Class) o : o.getClass();
}

static Class getClass(Object realm, String name) { try {
  try {
    return getClass(realm).getClassLoader().loadClass(classNameToVM(name));
  } catch (ClassNotFoundException e) {
    return null;
  }
} catch (Exception __e) { throw rethrow(__e); } }
static void sleepSeconds(double s) {
  if (s > 0) sleep(round(s*1000));
}
static boolean hasBot(String searchPattern) {
  DialogIO io = findBot(searchPattern);
  if (io != null) {
    io.close();
    return true;
  } else
    return false;
}
static Android3 methodsBot2(String name, final Object receiver, final List<String> exposedMethods) {
  return methodsBot2(name, receiver, exposedMethods, null);
}

static Android3 methodsBot2(String name, final Object receiver, final List<String> exposedMethods, final Lock lock) {
  Android3 android = new Android3();
  android.greeting = name;
  android.console = false;
  android.responder = new Responder() {
    String answer(String s, List<String> history) {
      return exposeMethods2(receiver, s, exposedMethods, lock);
    }
  };
  return makeBot(android);
}
static String standardCredentialsPass() {
  return trim(loadTextFile(new File(userHome(), ".tinybrain/userpass")));
}


// menuMaker = voidfunc(JPopupMenu)
static void titlePopupMenu(final Component c, final Object menuMaker) {
  swingNowOrLater(new Runnable() { public void run() { try { 
    if (!isSubstanceLAF())
      print("Can't add title right click!");
    else {
      JComponent titleBar = getTitlePaneComponent(getFrame(c));
      componentPopupMenu(titleBar, menuMaker);
    }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (!isSubstanceLAF())\r\n      print(\"Can't add title right click!\");\r\n    else {..."; }});
}
static File muricaPasswordFile() {
  return new File(javaxSecretDir(), "murica/muricaPasswordFile");
}
static <A> HashSet<A> lithashset(A... items) {
  HashSet<A> set = new HashSet();
  for (A a : items) set.add(a);
  return set;
}
static boolean checkConceptFields(Concept x, Object... data) {
  for (int i = 0; i < l(data); i += 2)
    if (neq(cget(x, (String) data[i]), deref(data[i+1])))
      return false;
  return true;
}
static boolean isSubstanceLAF() {
  return substanceLookAndFeelEnabled();
}
static boolean endsWithIgnoreCase(String a, String b) {
  return a != null && l(a) >= l(b) && a.regionMatches(true, l(a)-l(b), b, 0, l(b));
}
static JCheckBoxMenuItem jCheckBoxMenuItem(String text, boolean checked, final Object r) {
  JCheckBoxMenuItem mi = new JCheckBoxMenuItem(text, checked);
  mi.addActionListener(actionListener(r));
  return mi;
}
static String singleFieldName(Class c) {
  Set<String> l = listFields(c);
  if (l(l) != 1)
    throw fail("No single field found in " + c + " (have " + n(l(l), "fields") + ")");
  return first(l);
}
static void shootWindowGUI_external(JFrame frame) {
  call(hotwireOnce("#1007178"), "shootWindowGUI", frame);
}

static void shootWindowGUI_external(final JFrame frame, int delay) {
  call(hotwireOnce("#1007178"), "shootWindowGUI", frame, delay);
}

static boolean exposeMethods2_debug;

static String exposeMethods2(Object receiver, String s, List<String> methodNames) {
  return exposeMethods2(receiver, s, methodNames, null);
}

static String exposeMethods2(Object receiver, String s, List<String> methodNames,
  Lock lock) {
  Matches m = new Matches();
  if (exposeMethods2_debug) print("Received: " + s);
  if (match("call *", s, m)) {
    List l;
    if (isIdentifier(m.unq(0)))
      l = ll(m.unq(0));
    else
      l = (List) unstructure(m.unq(0)); // we used to have safeUnstructure here
    String method = getString(l, 0);
    if (!contains(methodNames, method))
      throw fail("Method not allowed: " + method);
    if (lock != null) lock.lock();
    try {
      if (exposeMethods2_debug) print("Calling: " + method);
      Object o = call(receiver, method, asObjectArray(subList(l, 1)));
      if (exposeMethods2_debug) print("Got: " + getClassName(o));
      return ok2(structure(o));
    } finally {
      if (lock != null) lock.unlock();
    }
  }
  if (match("list methods", s))
    return ok2(structure(methodNames));
  return null;
}
static String getComputerID_quick() {
  return computerID();
}
static String baseClassName(String className) {
  return substring(className, className.lastIndexOf('.')+1);
}

static String baseClassName(Object o) {
  return baseClassName(getClassName(o));
}
static JMenuItem jMenuItem(String text, Object r) {
  return jmenuItem(text, r);
}
static void toggleAlwaysOnTop(JFrame frame) {
  frame.setAlwaysOnTop(!frame.isAlwaysOnTop());
}
static long round(double d) {
  return Math.round(d);
}


static File javaxSecretDir_dir; // can be set to work on different base dir

static File javaxSecretDir() {
  return javaxSecretDir_dir != null ? javaxSecretDir_dir : new File(userHome(), "JavaX-Secret");
}
static JComponent getTitlePaneComponent(Window window) {
  if (!substanceLookAndFeelEnabled()) return null;
  
	JRootPane rootPane = null;
	if (window instanceof JFrame)
		rootPane = ((JFrame) window).getRootPane();
	if (window instanceof JDialog)
		rootPane = ((JDialog) window).getRootPane();
	if (rootPane != null) {
		Object /*SubstanceRootPaneUI*/ ui = rootPane.getUI();
		return (JComponent) call(ui, "getTitlePane");
	}
	return null;
}

static Object cget(Object c, String field) {
  Object o = getOpt(c, field);
  if (o instanceof Concept.Ref) return ((Concept.Ref) o).get();
  return o;
}
static Object[] asObjectArray(List l) {
  return toObjectArray(l);
}
static Object deref(Object o) {
  if (o instanceof Derefable) o = ((Derefable) o).get();
  return o;
}

static String ok2(String s) {
  return "ok " + s;
}
// This is for main classes that are all static.
// (We don't go to base classes.)
static Set<String> listFields(Object c) {
  TreeSet<String> fields = new TreeSet();
  for (Field f : _getClass(c).getDeclaredFields())
    fields.add(f.getName());
  return fields;
}
static String _computerID;
public static String computerID() { try {
  if (_computerID == null) {
    File file = new File(userHome(), ".tinybrain/computer-id");
    _computerID = loadTextFile(file.getPath(), null);
    if (_computerID == null) {
      _computerID = makeRandomID(12);
      saveTextFile(file.getPath(), _computerID);
    }
  }
  return _computerID;
} catch (Exception __e) { throw rethrow(__e); } }
static boolean substanceLookAndFeelEnabled() {
  return startsWith(getLookAndFeel(), "org.pushingpixels.");
}


static String getLookAndFeel() {
  return getClassName(UIManager.getLookAndFeel());
}


static class PersistentLister extends Concept implements ILister {
  static String _fieldOrder = "lists treeMaps treeSets vars name name";
  HashMap<String,List> lists = new HashMap();
  HashMap<String,Map> treeMaps = new HashMap();
  HashMap<String,Set> treeSets = new HashMap();
  HashMap<String,IVar> vars = new HashMap();
  
  public List getList(String name) {
    return getList(name, ll());
  }
  
  public synchronized List getList(String name, List defaultList) {
    List l = lists.get(name);
    if (l == null) {
      lists.put(name, l = listInConcept(this, cloneList(defaultList)));
      change();
    }
    return l;
  }
  
  public synchronized IVar getVar(String name, Object defaultValue) {
    IVar v = vars.get(name);
    if (v == null) {
      vars.put(name, v = varInConcept(this, new Var()));
      change();
    }
    if (!v.has() && defaultValue != null)
      v.set(defaultValue);
    return v;
  }
  
  public synchronized Map getTreeMap(String name) {
    Map m = treeMaps.get(name);
    if (m == null) {
      treeMaps.put(name, m = mapInConcept(this, new TreeMap()));
      change();
    }
    if (getOpt_raw(m, "m") == null)
     throw fail("map not sane: " + className(m) + " " + struct(m));
    return m;
  }
  
  public synchronized Set getTreeSet(String name) {
    Set m = treeSets.get(name);
    if (m == null) {
      treeSets.put(name, m = setInConcept(this, new TreeSet()));
      change();
    }
    return m;
  }  
}

static interface ILister {
  List getList(String name);
  List getList(String name, List defaultList);
  Map getTreeMap(String name);
  Set getTreeSet(String name);
  IVar getVar(String name, Object defaultValue);
}

// from https://android.googlesource.com/platform/external/nanohttpd/+/42ff2a9/websocket/src/main/java/fi/iki/elonen/




static class WebSocketException extends IOException {
    private WebSocketFrame.CloseCode code;
    private String reason;
    public WebSocketException(Exception cause) {
        this(WebSocketFrame.CloseCode.InternalServerError, cause.toString(), cause);
    }
    public WebSocketException(WebSocketFrame.CloseCode code, String reason) {
        this(code, reason, null);
    }
    public WebSocketException(WebSocketFrame.CloseCode code, String reason, Exception cause) {
        super(code + ": " + reason, cause);
        this.code = code;
        this.reason = reason;
    }
    public WebSocketFrame.CloseCode getCode() {
        return code;
    }
    public String getReason() {
        return reason;
    }
}

static class WebSocketFrame {
    private OpCode opCode;
    private boolean fin;
    private byte[] maskingKey;
    private byte[] payload;
    private transient int _payloadLength;
    private transient String _payloadString;
    private WebSocketFrame(OpCode opCode, boolean fin) {
        setOpCode(opCode);
        setFin(fin);
    }
    public WebSocketFrame(OpCode opCode, boolean fin, byte[] payload, byte[] maskingKey) {
        this(opCode, fin);
        setMaskingKey(maskingKey);
        setBinaryPayload(payload);
    }
    public WebSocketFrame(OpCode opCode, boolean fin, byte[] payload) {
        this(opCode, fin, payload, null);
    }
    public WebSocketFrame(OpCode opCode, boolean fin, String payload, byte[] maskingKey) throws CharacterCodingException {
        this(opCode, fin);
        setMaskingKey(maskingKey);
        setTextPayload(payload);
    }
    public WebSocketFrame(OpCode opCode, boolean fin, String payload) throws CharacterCodingException {
        this(opCode, fin, payload, null);
    }
    public WebSocketFrame(WebSocketFrame clone) {
        setOpCode(clone.getOpCode());
        setFin(clone.isFin());
        setBinaryPayload(clone.getBinaryPayload());
        setMaskingKey(clone.getMaskingKey());
    }
    public WebSocketFrame(OpCode opCode, List<WebSocketFrame> fragments) throws WebSocketException {
        setOpCode(opCode);
        setFin(true);
        long _payloadLength = 0;
        for (WebSocketFrame inter : fragments) {
            _payloadLength += inter.getBinaryPayload().length;
        }
        if (_payloadLength < 0 || _payloadLength > Integer.MAX_VALUE) {
            throw new WebSocketException(WebSocketFrame.CloseCode.MessageTooBig, "Max frame length has been exceeded.");
        }
        this._payloadLength = (int) _payloadLength;
        byte[] payload = new byte[this._payloadLength];
        int offset = 0;
        for (WebSocketFrame inter : fragments) {
            System.arraycopy(inter.getBinaryPayload(), 0, payload, offset, inter.getBinaryPayload().length);
            offset += inter.getBinaryPayload().length;
        }
        setBinaryPayload(payload);
    }
    // --------------------------------GETTERS---------------------------------
    public OpCode getOpCode() {
        return opCode;
    }
    public void setOpCode(OpCode opcode) {
        this.opCode = opcode;
    }
    public boolean isFin() {
        return fin;
    }
    public void setFin(boolean fin) {
        this.fin = fin;
    }
    public boolean isMasked() {
        return maskingKey != null && maskingKey.length == 4;
    }
    public byte[] getMaskingKey() {
        return maskingKey;
    }
    public void setMaskingKey(byte[] maskingKey) {
        if (maskingKey != null && maskingKey.length != 4) {
            throw new IllegalArgumentException("MaskingKey " + Arrays.toString(maskingKey) + " hasn't length 4");
        }
        this.maskingKey = maskingKey;
    }
    public void setUnmasked() {
        setMaskingKey(null);
    }
    public byte[] getBinaryPayload() {
        return payload;
    }
    public void setBinaryPayload(byte[] payload) {
        this.payload = payload;
        this._payloadLength = payload.length;
        this._payloadString = null;
    }
    public String getTextPayload() {
        if (_payloadString == null) {
            try {
                _payloadString = binary2Text(getBinaryPayload());
            } catch (CharacterCodingException e) {
                throw new RuntimeException("Undetected CharacterCodingException", e);
            }
        }
        return _payloadString;
    }
    public void setTextPayload(String payload) throws CharacterCodingException {
        this.payload = text2Binary(payload);
        this._payloadLength = payload.length();
        this._payloadString = payload;
    }
    // --------------------------------SERIALIZATION---------------------------
    public static WebSocketFrame read(InputStream in) throws IOException {
        byte head = (byte) checkedRead(in.read());
        boolean fin = ((head & 0x80) != 0);
        OpCode opCode = OpCode.find((byte) (head & 0x0F));
        if ((head & 0x70) != 0) {
            throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "The reserved bits (" + Integer.toBinaryString(head & 0x70) + ") must be 0.");
        }
        if (opCode == null) {
            throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Received frame with reserved/unknown opcode " + (head & 0x0F) + ".");
        } else if (opCode.isControlFrame() && !fin) {
            throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Fragmented control frame.");
        }
        WebSocketFrame frame = new WebSocketFrame(opCode, fin);
        frame.readPayloadInfo(in);
        frame.readPayload(in);
        if (frame.getOpCode() == WebSocketFrame.OpCode.Close) {
            return new WebSocketFrame.CloseFrame(frame);
        } else {
            return frame;
        }
    }
    private static int checkedRead(int read) throws IOException {
        if (read < 0) {
            throw new EOFException();
        }
        //System.out.println(Integer.toBinaryString(read) + "/" + read + "/" + Integer.toHexString(read));
        return read;
    }
    private void readPayloadInfo(InputStream in) throws IOException {
        byte b = (byte) checkedRead(in.read());
        boolean masked = ((b & 0x80) != 0);
        _payloadLength = (byte) (0x7F & b);
        if (_payloadLength == 126) {
            // checkedRead must return int for this to work
            _payloadLength = (checkedRead(in.read()) << 8 | checkedRead(in.read())) & 0xFFFF;
            if (_payloadLength < 126) {
                throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Invalid data frame 2byte length. (not using minimal length encoding)");
            }
        } else if (_payloadLength == 127) {
            long _payloadLength = ((long) checkedRead(in.read())) << 56 |
                    ((long) checkedRead(in.read())) << 48 |
                    ((long) checkedRead(in.read())) << 40 |
                    ((long) checkedRead(in.read())) << 32 |
                    checkedRead(in.read()) << 24 | checkedRead(in.read()) << 16 | checkedRead(in.read()) << 8 | checkedRead(in.read());
            if (_payloadLength < 65536) {
                throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Invalid data frame 4byte length. (not using minimal length encoding)");
            }
            if (_payloadLength < 0 || _payloadLength > Integer.MAX_VALUE) {
                throw new WebSocketException(WebSocketFrame.CloseCode.MessageTooBig, "Max frame length has been exceeded.");
            }
            this._payloadLength = (int) _payloadLength;
        }
        if (opCode.isControlFrame()) {
            if (_payloadLength > 125) {
                throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Control frame with payload length > 125 bytes.");
            }
            if (opCode == OpCode.Close && _payloadLength == 1) {
                throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Received close frame with payload len 1.");
            }
        }
        if (masked) {
            maskingKey = new byte[4];
            int read = 0;
            while (read < maskingKey.length) {
                read += checkedRead(in.read(maskingKey, read, maskingKey.length - read));
            }
        }
    }
    private void readPayload(InputStream in) throws IOException {
        payload = new byte[_payloadLength];
        int read = 0;
        while (read < _payloadLength) {
            read += checkedRead(in.read(payload, read, _payloadLength - read));
        }
        if (isMasked()) {
            for (int i = 0; i < payload.length; i++) {
                payload[i] ^= maskingKey[i % 4];
            }
        }
        //Test for Unicode errors
        if (getOpCode() == WebSocketFrame.OpCode.Text) {
            _payloadString = binary2Text(getBinaryPayload());
        }
    }
    public void write(OutputStream out) throws IOException {
        byte header = 0;
        if (fin) {
            header |= 0x80;
        }
        header |= opCode.getValue() & 0x0F;
        out.write(header);
        _payloadLength = getBinaryPayload().length;
        if (_payloadLength <= 125) {
            out.write(isMasked() ? 0x80 | (byte) _payloadLength : (byte) _payloadLength);
        } else if (_payloadLength <= 0xFFFF) {
            out.write(isMasked() ? 0xFE : 126);
            out.write(_payloadLength >>> 8);
            out.write(_payloadLength);
        } else {
            out.write(isMasked() ? 0xFF : 127);
            out.write(_payloadLength >>> 56 & 0); //integer only contains 31 bit
            out.write(_payloadLength >>> 48 & 0);
            out.write(_payloadLength >>> 40 & 0);
            out.write(_payloadLength >>> 32 & 0);
            out.write(_payloadLength >>> 24);
            out.write(_payloadLength >>> 16);
            out.write(_payloadLength >>> 8);
            out.write(_payloadLength);
        }
        if (isMasked()) {
            out.write(maskingKey);
            for (int i = 0; i < _payloadLength; i++) {
                out.write(getBinaryPayload()[i] ^ maskingKey[i % 4]);
            }
        } else {
            out.write(getBinaryPayload());
        }
        out.flush();
    }
    // --------------------------------ENCODING--------------------------------
    public static final Charset TEXT_CHARSET = Charset.forName("UTF-8");
    public static final CharsetDecoder TEXT_DECODER = TEXT_CHARSET.newDecoder();
    public static final CharsetEncoder TEXT_ENCODER = TEXT_CHARSET.newEncoder();
    public static String binary2Text(byte[] payload) throws CharacterCodingException {
        return TEXT_DECODER.decode(ByteBuffer.wrap(payload)).toString();
    }
    public static String binary2Text(byte[] payload, int offset, int length) throws CharacterCodingException {
        return TEXT_DECODER.decode(ByteBuffer.wrap(payload, offset, length)).toString();
    }
    public static byte[] text2Binary(String payload) throws CharacterCodingException {
        return TEXT_ENCODER.encode(CharBuffer.wrap(payload)).array();
    }
    @Override
    public String toString() {
        final StringBuilder sb = new StringBuilder("WS[");
        sb.append(getOpCode());
        sb.append(", ").append(isFin() ? "fin" : "inter");
        sb.append(", ").append(isMasked() ? "masked" : "unmasked");
        sb.append(", ").append(payloadToString());
        sb.append(']');
        return sb.toString();
    }
    protected String payloadToString() {
        if (payload == null) return "null";
        else {
            final StringBuilder sb = new StringBuilder();
            sb.append('[').append(payload.length).append("b] ");
            if (getOpCode() == WebSocketFrame.OpCode.Text) {
                String text = getTextPayload();
                if (text.length() > 100)
                    sb.append(text.substring(0, 100)).append("...");
                else
                    sb.append(text);
            } else {
                sb.append("0x");
                for (int i = 0; i < Math.min(payload.length, 50); ++i)
                    sb.append(Integer.toHexString((int) payload[i] & 0xFF));
                if (payload.length > 50)
                    sb.append("...");
            }
            return sb.toString();
        }
    }
    // --------------------------------CONSTANTS-------------------------------
    public static enum OpCode {
        Continuation(0), Text(1), Binary(2), Close(8), Ping(9), Pong(10);
        private final byte code;
        private OpCode(int code) {
            this.code = (byte) code;
        }
        public byte getValue() {
            return code;
        }
        public boolean isControlFrame() {
            return this == Close || this == Ping || this == Pong;
        }
        public static OpCode find(byte value) {
            for (OpCode opcode : values()) {
                if (opcode.getValue() == value) {
                    return opcode;
                }
            }
            return null;
        }
    }
    
    public static enum CloseCode {
        NormalClosure(1000), GoingAway(1001), ProtocolError(1002), UnsupportedData(1003), NoStatusRcvd(1005),
        AbnormalClosure(1006), InvalidFramePayloadData(1007), PolicyViolation(1008), MessageTooBig(1009),
        MandatoryExt(1010), InternalServerError(1011), TLSHandshake(1015);
        private final int code;
        private CloseCode(int code) {
            this.code = code;
        }
        public int getValue() {
            return code;
        }
        public static WebSocketFrame.CloseCode find(int value) {
            for (WebSocketFrame.CloseCode code : values()) {
                if (code.getValue() == value) {
                    return code;
                }
            }
            return null;
        }
    }
    // ------------------------------------------------------------------------
 public static class CloseFrame extends WebSocketFrame {
        private CloseCode _closeCode;
        private String _closeReason;
        private CloseFrame(WebSocketFrame wrap) throws CharacterCodingException {
            super(wrap);
            assert wrap.getOpCode() == OpCode.Close;
            if (wrap.getBinaryPayload().length >= 2) {
                _closeCode = CloseCode.find((wrap.getBinaryPayload()[0] & 0xFF) << 8 |
                        (wrap.getBinaryPayload()[1] & 0xFF));
                _closeReason = binary2Text(getBinaryPayload(), 2, getBinaryPayload().length - 2);
            }
        }
        public CloseFrame(CloseCode code, String closeReason) throws CharacterCodingException {
            super(OpCode.Close, true, generatePayload(code, closeReason));
        }
        private static byte[] generatePayload(CloseCode code, String closeReason) throws CharacterCodingException {
            if (code != null) {
                byte[] reasonBytes = text2Binary(closeReason);
                byte[] payload = new byte[reasonBytes.length + 2];
                payload[0] = (byte) ((code.getValue() >> 8) & 0xFF);
                payload[1] = (byte) ((code.getValue()) & 0xFF);
                System.arraycopy(reasonBytes, 0, payload, 2, reasonBytes.length);
                return payload;
            } else {
                return new byte[0];
            }
        }
        protected String payloadToString() {
            return (_closeCode != null ? _closeCode : "UnknownCloseCode[" + _closeCode + "]") + (_closeReason != null && !_closeReason.isEmpty() ? ": " + _closeReason : "");
        }
        public CloseCode getCloseCode() {
            return _closeCode;
        }
        public String getCloseReason() {
            return _closeReason;
        }
    }
}

static abstract class WebSocket {
    protected final InputStream in;
    protected /*final*/ OutputStream out;
    protected WebSocketFrame.OpCode continuousOpCode = null;
    protected List<WebSocketFrame> continuousFrames = new LinkedList<WebSocketFrame>();
    protected State state = State.UNCONNECTED;
    public static enum State {
        UNCONNECTED, CONNECTING, OPEN, CLOSING, CLOSED
    }
    protected final NanoHTTPD.IHTTPSession handshakeRequest;
    //protected final NanoHTTPD.Response handshakeResponse = new NanoHTTPD.Response(NanoHTTPD.Status.SWITCH_PROTOCOL, null, (InputStream) null) {
    protected final NanoHTTPD.Response handshakeResponse = new NanoHTTPD.Response(NanoHTTPD.Status.SWITCH_PROTOCOL, null, (InputStream) null, -1) {
        @Override
        protected void send(OutputStream out) {
            WebSocket.this.out = out;
            state = State.CONNECTING;
            super.send(out);
            state = State.OPEN;
            readWebsocket();
        }
    };
    public WebSocket(NanoHTTPD.IHTTPSession handshakeRequest) {
        this.handshakeRequest = handshakeRequest;
        this.in = handshakeRequest.getInputStream();
        handshakeResponse.addHeader(NanoWebSocketServer.HEADER_UPGRADE, NanoWebSocketServer.HEADER_UPGRADE_VALUE);
        handshakeResponse.addHeader(NanoWebSocketServer.HEADER_CONNECTION, NanoWebSocketServer.HEADER_CONNECTION_VALUE);
    }
    // --------------------------------IO--------------------------------------
    protected void readWebsocket() {
        try {
            while (state == State.OPEN) {
                handleWebsocketFrame(WebSocketFrame.read(in));
            }
        } catch (CharacterCodingException e) {
            onException(e);
            doClose(WebSocketFrame.CloseCode.InvalidFramePayloadData, e.toString(), false);
        } catch (IOException e) {
            onException(e);
            if (e instanceof WebSocketException) {
                doClose(((WebSocketException) e).getCode(), ((WebSocketException) e).getReason(), false);
            }
        } finally {
            doClose(WebSocketFrame.CloseCode.InternalServerError, "Handler terminated without closing the connection.", false);
        }
    }
    protected void handleWebsocketFrame(WebSocketFrame frame) throws IOException {
        if (frame.getOpCode() == WebSocketFrame.OpCode.Close) {
            handleCloseFrame(frame);
        } else if (frame.getOpCode() == WebSocketFrame.OpCode.Ping) {
            sendFrame(new WebSocketFrame(WebSocketFrame.OpCode.Pong, true, frame.getBinaryPayload()));
        } else if (frame.getOpCode() == WebSocketFrame.OpCode.Pong) {
            onPong(frame);
        } else if (!frame.isFin() || frame.getOpCode() == WebSocketFrame.OpCode.Continuation) {
            handleFrameFragment(frame);
        } else if (continuousOpCode != null) {
            throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Continuous frame sequence not completed.");
        } else if (frame.getOpCode() == WebSocketFrame.OpCode.Text || frame.getOpCode() == WebSocketFrame.OpCode.Binary) {
            onMessage(frame);
        } else {
            throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Non control or continuous frame expected.");
        }
    }
    protected void handleCloseFrame(WebSocketFrame frame) throws IOException {
        WebSocketFrame.CloseCode code = WebSocketFrame.CloseCode.NormalClosure;
        String reason = "";
        if (frame instanceof WebSocketFrame.CloseFrame) {
            code = ((WebSocketFrame.CloseFrame) frame).getCloseCode();
            reason = ((WebSocketFrame.CloseFrame) frame).getCloseReason();
        }
        if (state == State.CLOSING) {
            //Answer for my requested close
            doClose(code, reason, false);
        } else {
            //Answer close request from other endpoint and close self
            State oldState = state;
            state = State.CLOSING;
            if (oldState == State.OPEN) try {
                sendFrame(new WebSocketFrame.CloseFrame(code, reason));
            } catch (Throwable _e) {}
            doClose(code, reason, true);
        }
    }
    protected void handleFrameFragment(WebSocketFrame frame) throws IOException {
        if (frame.getOpCode() != WebSocketFrame.OpCode.Continuation) {
            //First
            if (continuousOpCode != null) {
                throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Previous continuous frame sequence not completed.");
            }
            continuousOpCode = frame.getOpCode();
            continuousFrames.clear();
            continuousFrames.add(frame);
        } else if (frame.isFin()) {
            //Last
            if (continuousOpCode == null) {
                throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Continuous frame sequence was not started.");
            }
            onMessage(new WebSocketFrame(continuousOpCode, continuousFrames));
            continuousOpCode = null;
            continuousFrames.clear();
        } else if (continuousOpCode == null) {
            //Unexpected
            throw new WebSocketException(WebSocketFrame.CloseCode.ProtocolError, "Continuous frame sequence was not started.");
        } else {
            //Intermediate
            continuousFrames.add(frame);
        }
    }
    public synchronized void sendFrame(WebSocketFrame frame) throws IOException {
        frame.write(out);
    }
    // --------------------------------Close-----------------------------------
    protected void doClose(WebSocketFrame.CloseCode code, String reason, boolean initiatedByRemote) {
        if (state == State.CLOSED) {
            return;
        }
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (out != null) {
            try {
                out.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        state = State.CLOSED;
        onClose(code, reason, initiatedByRemote);
    }
    // --------------------------------Listener--------------------------------
    protected abstract void onPong(WebSocketFrame pongFrame);
    protected abstract void onMessage(WebSocketFrame messageFrame);
    protected abstract void onClose(WebSocketFrame.CloseCode code, String reason, boolean initiatedByRemote);
    protected abstract void onException(IOException e);
    // --------------------------------Public Facade---------------------------
    public void ping(byte[] payload) throws IOException {
        sendFrame(new WebSocketFrame(WebSocketFrame.OpCode.Ping, true, payload));
    }
    public void send(byte[] payload) throws IOException {
        sendFrame(new WebSocketFrame(WebSocketFrame.OpCode.Binary, true, payload));
    }
    public void send(String payload) throws IOException {
        sendFrame(new WebSocketFrame(WebSocketFrame.OpCode.Text, true, payload));
    }
    public void close(WebSocketFrame.CloseCode code, String reason) throws IOException {
        State oldState = state;
        state = State.CLOSING;
        if (oldState == State.OPEN) {
            sendFrame(new WebSocketFrame.CloseFrame(code, reason));
        } else {
            doClose(code, reason, false);
        }
    }
    // --------------------------------Getters---------------------------------
    public NanoHTTPD.IHTTPSession getHandshakeRequest() {
        return handshakeRequest;
    }
    public NanoHTTPD.Response getHandshakeResponse() {
        return handshakeResponse;
    }
}

static interface WebSocketFactory {
  WebSocket openWebSocket(NanoHTTPD.IHTTPSession handshake);
}

static class NanoWebSocketServer extends NanoHTTPD implements WebSocketFactory {
    public static final String HEADER_UPGRADE = "upgrade";
    public static final String HEADER_UPGRADE_VALUE = "websocket";
    public static final String HEADER_CONNECTION = "connection";
    public static final String HEADER_CONNECTION_VALUE = "Upgrade";
    public static final String HEADER_WEBSOCKET_VERSION = "sec-websocket-version";
    public static final String HEADER_WEBSOCKET_VERSION_VALUE = "13";
    public static final String HEADER_WEBSOCKET_KEY = "sec-websocket-key";
    public static final String HEADER_WEBSOCKET_ACCEPT = "sec-websocket-accept";
    public static final String HEADER_WEBSOCKET_PROTOCOL = "sec-websocket-protocol";
    public final static String WEBSOCKET_KEY_MAGIC = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
    
    WebSocketFactory webSocketFactory;
    
    public NanoWebSocketServer(int port) {
        super(port);
        webSocketFactory = null;
    }
    
    public NanoWebSocketServer(String hostname, int port) {
        super(hostname, port);
        webSocketFactory = null;
    }
    
    public NanoWebSocketServer(int port, WebSocketFactory webSocketFactory) {
        super(port);
        this.webSocketFactory = webSocketFactory;
    }
    
    public NanoWebSocketServer(String hostname, int port,WebSocketFactory webSocketFactory) {
        super(hostname, port);
        this.webSocketFactory = webSocketFactory;
    }
    
    @Override
    public Response serve(final IHTTPSession session) {
        Map<String, String> headers = session.getHeaders();
        if (isWebsocketRequested(session)) {
            if (!HEADER_UPGRADE_VALUE.equalsIgnoreCase(headers.get(HEADER_UPGRADE))
                    || !isWebSocketConnectionHeader(session.getHeaders())) {
                return newFixedLengthResponse(Status.BAD_REQUEST, NanoHTTPD.MIME_PLAINTEXT, "Invalid Websocket handshake");
            }
            if (!HEADER_WEBSOCKET_VERSION_VALUE.equalsIgnoreCase(headers.get(HEADER_WEBSOCKET_VERSION))) {
                return newFixedLengthResponse(Status.BAD_REQUEST, NanoHTTPD.MIME_PLAINTEXT, "Invalid Websocket-Version " + headers.get(HEADER_WEBSOCKET_VERSION));
            }
            if (!headers.containsKey(HEADER_WEBSOCKET_KEY)) {
                return newFixedLengthResponse(Status.BAD_REQUEST, NanoHTTPD.MIME_PLAINTEXT, "Missing Websocket-Key");
            }
            WebSocket webSocket = openWebSocket(session);
            try {
                webSocket.getHandshakeResponse().addHeader(HEADER_WEBSOCKET_ACCEPT, makeAcceptKey(headers.get(HEADER_WEBSOCKET_KEY)));
            } catch (NoSuchAlgorithmException e) {
                return newFixedLengthResponse(Status.INTERNAL_ERROR, NanoHTTPD.MIME_PLAINTEXT, "The SHA-1 Algorithm required for websockets is not available on the server.");
            }
            if (headers.containsKey(HEADER_WEBSOCKET_PROTOCOL)) {
                webSocket.getHandshakeResponse().addHeader(HEADER_WEBSOCKET_PROTOCOL, headers.get(HEADER_WEBSOCKET_PROTOCOL).split(",")[0]);
            }
            return webSocket.getHandshakeResponse();
        } else {
            return super.serve(session);
        }
    }
    
    public WebSocket openWebSocket(IHTTPSession handshake) {
        if (webSocketFactory == null) {
            throw new Error("You must either override this method or supply a WebSocketFactory in the constructor");
        }
        return webSocketFactory.openWebSocket(handshake);
    }
    
    protected boolean isWebsocketRequested(IHTTPSession session) {
        Map<String, String> headers = session.getHeaders();
        String upgrade = headers.get(HEADER_UPGRADE);
        boolean isCorrectConnection = isWebSocketConnectionHeader(headers);
        boolean isUpgrade = HEADER_UPGRADE_VALUE.equalsIgnoreCase(upgrade);
        return (isUpgrade && isCorrectConnection);
    }
    
    private boolean isWebSocketConnectionHeader(Map<String, String> headers) {
        String connection = headers.get(HEADER_CONNECTION);
        return (connection != null && connection.toLowerCase().contains(HEADER_CONNECTION_VALUE.toLowerCase()));
    }
    
    public static String makeAcceptKey(String key) throws NoSuchAlgorithmException {
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        String text = key + WEBSOCKET_KEY_MAGIC;
        md.update(text.getBytes(), 0, text.length());
        byte[] sha1hash = md.digest();
        return base64encode(sha1hash);
    }
}

static abstract class F0<A> {
  abstract A get();
}

static abstract class F1<A, B> {
  abstract B get(A a);
}

static interface Producer<A> {
  public A next();
}

static ThreadLocal<Boolean> DynamicObject_loading = new ThreadLocal();

static class DynamicObject {
  String className; // just the name, without the "main$"
  LinkedHashMap<String,Object> fieldValues = new LinkedHashMap();
  
  DynamicObject() {}
  // className = just the name, without the "main$"
  DynamicObject(String className) {
  this.className = className;}
}

/** this class is fully thread-safe */
static class Flag {
  private boolean up;

  /** returns true if flag was down before */
  public synchronized boolean raise() {
    if (!up) {
      up = true;
      notifyAll();
      return true;
    } else
      return false;
  }

  public synchronized void waitUntilUp() {
    while (!up) {
      try {
        wait();
      } catch (InterruptedException e) {
        e.printStackTrace();
      }
    }
  }

  public synchronized void waitUntilUp(long timeout) {
    if (!up) {
      try {
        wait(timeout);
      } catch (InterruptedException e) {
        e.printStackTrace();
      }
    }
  }

  public synchronized boolean isUp() {
    return up;
  }

  public String toString() {
    return isUp() ? "up" : "down";
  }

  // currently does a semi-active wait with latency = 50 ms
  public void waitForThisOr(Flag otherFlag) { try {
    while (!isUp() && !otherFlag.isUp())
      Thread.sleep(50);
  } catch (Exception __e) { throw rethrow(__e); } }
}

static class Var<A> implements IVar<A> {
  A v; // you can access this directly if you use one thread
  
  Var() {}
  Var(A v) {
  this.v = v;}
  
  public synchronized void set(A a) {
    if (v != a) {
      v = a;
      notifyAll();
    }
  }
  
  public synchronized A get() { return v; }
  public synchronized boolean has() { return v != null; }
  public synchronized void clear() { v = null; }
}

static class ProgramScan {
  static int threads = isWindows() ? 500 : 10;
  static int timeout = 5000; // hmm...
  static String ip = "127.0.0.1";
  
  // This range is not used anymore anyway
  static int quickScanFrom = 10000, quickScanTo = 10999;

  static int maxNumberOfVMs_android = 4; // Android will always only have one if we don't screw up
  static int maxNumberOfVMs_nonAndroid = 50; // 100;
  static int maxNumberOfVMs;
  
  static boolean verbose;
  
  static class Program {
    int port;
    String helloString;
    
    Program(int port, String helloString) {
  this.helloString = helloString;
  this.port = port;}
  }
  
  static List<Program> scan() { try {
    return scan(1, 65535);
  } catch (Exception __e) { throw rethrow(__e); } }
  
  static List<Program> scan(int fromPort, int toPort) {
    return scan(fromPort, toPort, new int[0]);
  }
  
  static List<Program> scan(int fromPort, int toPort, int[] preferredPorts) { try {
    Set<Integer> preferredPortsSet = new HashSet<Integer>(asList(preferredPorts));
    int scanSize = toPort-fromPort+1;
    String name = toPort < 10000 ? "bot" : "program";
    int threads = isWindows() ? min(500, scanSize) : min(scanSize, 10);
    final ExecutorService es = Executors.newFixedThreadPool(threads);
    if (verbose) print(firstToUpper(name) + "-scanning " + ip + " with timeout " + timeout + " ms in " + threads + " threads.");
    startTiming();
    List < Future < Program > > futures = new ArrayList();
    List<Integer> ports = new ArrayList();
    for (int port : preferredPorts) {
      futures.add(checkPort(es, ip, port, timeout));
      ports.add(port);
    }
    for (int port = fromPort; port <= toPort; port++)
      if (!preferredPortsSet.contains(port) && !forbiddenPort(port)) {
        futures.add(checkPort(es, ip, port, timeout));
        ports.add(port);
      }
    es.shutdown();
    List<Program> programs = new ArrayList();
    long time = now();
    int i = 0;
    for (final Future<Program> f : futures) {
      if (verbose) print("Waiting for port " + get(ports, i++) + " at time " + (now()-time));
      Program p = f.get();
      if (p != null)
        programs.add(p);
    }
    //stopTiming("Port Scan " + scanSize + ", " + n(threads, "threads") + ": ", 250);
    if (verbose) print("Found " + programs.size() + " " + name + "(s) on " + ip);
    return programs;
  } catch (Exception __e) { throw rethrow(__e); } }

  static Future<Program> checkPort(final ExecutorService es, final String ip, final int port, final int timeout) {
    return es.submit(new Callable<Program>() {
        @Override public Program call() {
          try {
            Socket socket = new Socket();
            try {
              socket.setSoTimeout(timeout);
              socket.connect(new InetSocketAddress(ip, port), timeout);
              //if (verbose) print("Connected to " + ip + ":" + port);
              BufferedReader in = new BufferedReader(
                new InputStreamReader(socket.getInputStream(), "UTF-8"));
              String hello = or(in.readLine(), "?");
              return new Program(port, hello);
            } finally {
              socket.close();
            }
          } catch (Exception ex) {
            return null;
          }
        }
     });
  }
  
  static List<Program> quickScan() {
    return scan(quickScanFrom, quickScanTo);
  }
  
  static List<Program> quickBotScan() {
    return quickBotScan(new int[0]);
  }
  
  static List<Program> quickBotScan(int[] preferredPorts) {
    if (maxNumberOfVMs == 0)
      maxNumberOfVMs = isAndroid() ? maxNumberOfVMs_android : maxNumberOfVMs_nonAndroid;
    return scan(4999, 5000+maxNumberOfVMs-1, preferredPorts);
  }
}

// not changed yet: allow cookie to be read right after being set


















static abstract class NanoHTTPD {

    static ThreadLocal<IHTTPSession> currentSession = new ThreadLocal<IHTTPSession>();

    /**
     * Pluggable strategy for asynchronously executing requests.
     */
    public interface AsyncRunner {

        void closeAll();

        void closed(ClientHandler clientHandler);

        void exec(ClientHandler code);
    }

    /**
     * The runnable that will be used for every new client connection.
     */
    public class ClientHandler implements Runnable {

        private final InputStream inputStream;

        final Socket acceptSocket;

        private ClientHandler(InputStream inputStream, Socket acceptSocket) {
            this.inputStream = inputStream;
            this.acceptSocket = acceptSocket;
        }

        public void close() {
            safeClose(this.inputStream);
            safeClose(this.acceptSocket);
        }

        @Override
        public void run() {
            OutputStream outputStream = null;
            try {
                //outputStream = wrapStuff("SocketOutputStream", this.acceptSocket.getOutputStream(), this.acceptSocket);
                outputStream = this.acceptSocket.getOutputStream();
                TempFileManager tempFileManager = NanoHTTPD.this.tempFileManagerFactory.create();
                HTTPSession session = new HTTPSession(tempFileManager, this.inputStream, outputStream, this.acceptSocket.getInetAddress());
                while (!this.acceptSocket.isClosed()) {
                    session.execute();
                }
            } catch (Exception e) {
                // When the socket is closed by the client,
                // we throw our own SocketException
                // to break the "keep alive" loop above. If
                // the exception was anything other
                // than the expected SocketException OR a
                // SocketTimeoutException, print the
                // stacktrace
                if (!(e instanceof SocketException && "NanoHttpd Shutdown".equals(e.getMessage())) && !(e instanceof SocketTimeoutException)) {
                    NanoHTTPD.LOG.log(Level.FINE, "Communication with the client broken", e);
                }
            } finally {
                safeClose(outputStream);
                safeClose(this.inputStream);
                safeClose(this.acceptSocket);
                NanoHTTPD.this.asyncRunner.closed(this);
            }
        }
    }

    public static class Cookie {

        public static String getHTTPTime(int days) {
            Calendar calendar = Calendar.getInstance();
            SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z", Locale.US);
            dateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
            calendar.add(Calendar.DAY_OF_MONTH, days);
            return dateFormat.format(calendar.getTime());
        }

        final String n, v, e;

        public Cookie(String name, String value) {
            this(name, value, 30);
        }

        public Cookie(String name, String value, int numDays) {
            this.n = name;
            this.v = value;
            this.e = getHTTPTime(numDays);
        }

        public Cookie(String name, String value, String expires) {
            this.n = name;
            this.v = value;
            this.e = expires;
        }

        public String getHTTPHeader() {
            String fmt = "%s=%s; expires=%s";
            return String.format(fmt, this.n, this.v, this.e);
        }
    }

    /**
     * Provides rudimentary support for cookies. Doesn't support 'path',
     * 'secure' nor 'httpOnly'. Feel free to improve it and/or add unsupported
     * features.
     * 
     * @author LordFokas
     */
    public class CookieHandler implements Iterable<String> {

        private final HashMap<String, String> cookies = new HashMap<String, String>();

        private final ArrayList<Cookie> queue = new ArrayList<Cookie>();

        public CookieHandler(Map<String, String> httpHeaders) {
            String raw = httpHeaders.get("cookie");
            if (raw != null) {
                String[] tokens = raw.split(";");
                for (String token : tokens) {
                    String[] data = token.trim().split("=");
                    if (data.length == 2) {
                        this.cookies.put(data[0], data[1]);
                    }
                }
            }
        }

        /**
         * Set a cookie with an expiration date from a month ago, effectively
         * deleting it on the client side.
         * 
         * @param name
         *            The cookie name.
         */
        public void delete(String name) {
            set(name, "-delete-", -30);
        }

        @Override
        public Iterator<String> iterator() {
            return this.cookies.keySet().iterator();
        }

        /**
         * Read a cookie from the HTTP Headers.
         * 
         * @param name
         *            The cookie's name.
         * @return The cookie's value if it exists, null otherwise.
         */
        public String read(String name) {
            return this.cookies.get(name);
        }

        public void set(Cookie cookie) {
            this.queue.add(cookie);
            //cookies.put(cookie.n, cookie.v); // CHANGED
        }

        /**
         * Sets a cookie.
         * 
         * @param name
         *            The cookie's name.
         * @param value
         *            The cookie's value.
         * @param expires
         *            How many days until the cookie expires.
         */
        public void set(String name, String value, int expires) {
            this.queue.add(new Cookie(name, value, Cookie.getHTTPTime(expires)));
        }

        /**
         * Internally used by the webserver to add all queued cookies into the
         * Response's HTTP Headers.
         * 
         * @param response
         *            The Response object to which headers the queued cookies
         *            will be added.
         */
        public void unloadQueue(Response response) {
            for (Cookie cookie : this.queue) {
                response.addHeader("Set-Cookie", cookie.getHTTPHeader());
            }
        }
    }

    /**
     * Default threading strategy for NanoHTTPD.
     * <p/>
     * <p>
     * By default, the server spawns a new Thread for every incoming request.
     * These are set to <i>daemon</i> status, and named according to the request
     * number. The name is useful when profiling the application.
     * </p>
     */
    public static class DefaultAsyncRunner implements AsyncRunner {

        private long requestCount;

        private final List<ClientHandler> running = Collections.synchronizedList(new ArrayList<NanoHTTPD.ClientHandler>());

        /**
         * @return a list with currently running clients.
         */
        public List<ClientHandler> getRunning() {
            return running;
        }

        @Override
        public void closeAll() {
            // copy of the list for concurrency
            for (ClientHandler clientHandler : new ArrayList<ClientHandler>(this.running)) {
                clientHandler.close();
            }
        }

        @Override
        public void closed(ClientHandler clientHandler) {
            this.running.remove(clientHandler);
        }

        @Override
        public void exec(ClientHandler clientHandler) {
            ++this.requestCount;
            Thread t = new Thread(clientHandler);
            //t.setDaemon(true);
            String clientIP = "?";
            try { clientIP = clientHandler.acceptSocket.getInetAddress().getHostAddress().toString(); } catch (Throwable __e) { printStackTrace2(__e); }
            t.setName("NanoHttpd serving request #" + this.requestCount + " to " + clientIP);
            this.running.add(clientHandler);
            t.start();
        }
    }

    /**
     * Default strategy for creating and cleaning up temporary files.
     * <p/>
     * <p>
     * By default, files are created by <code>File.createTempFile()</code> in
     * the directory specified.
     * </p>
     */
    public static class DefaultTempFile implements TempFile {

        private final File file;

        private final OutputStream fstream;

        public DefaultTempFile(String tempdir) throws IOException {
            this.file = File.createTempFile("NanoHTTPD-", "", new File(tempdir));
            this.fstream = new FileOutputStream(this.file);
            System.err.println("Temp file created: " + file);
        }

        @Override
        public void delete() throws Exception {
            safeClose(this.fstream);
            System.err.println("Temp file deleted: " + file);
            if (!this.file.delete()) {
                throw new Exception("could not delete temporary file");
            }
        }

        @Override
        public String getName() {
            return this.file.getAbsolutePath();
        }

        @Override
        public OutputStream open() throws Exception {
            return this.fstream;
        }
    }

    /**
     * Default strategy for creating and cleaning up temporary files.
     * <p/>
     * <p>
     * This class stores its files in the standard location (that is, wherever
     * <code>java.io.tmpdir</code> points to). Files are added to an internal
     * list, and deleted when no longer needed (that is, when
     * <code>clear()</code> is invoked at the end of processing a request).
     * </p>
     */
    public static class DefaultTempFileManager implements TempFileManager {

        private final String tmpdir;

        private final List<TempFile> tempFiles;

        public DefaultTempFileManager() {
            this.tmpdir = tempDir().getPath(); // use JavaX, dude
              // System.getProperty("java.io.tmpdir");
            this.tempFiles = new ArrayList<TempFile>();
        }

        @Override
        public void clear() {
            for (TempFile file : this.tempFiles) {
                try {
                    file.delete();
                } catch (Exception ignored) {
                    NanoHTTPD.LOG.log(Level.WARNING, "could not delete file ", ignored);
                }
            }
            this.tempFiles.clear();
        }

        @Override
        public TempFile createTempFile() throws Exception {
            DefaultTempFile tempFile = new DefaultTempFile(this.tmpdir);
            this.tempFiles.add(tempFile);
            return tempFile;
        }
    }

    /**
     * Default strategy for creating and cleaning up temporary files.
     */
    private class DefaultTempFileManagerFactory implements TempFileManagerFactory {

        @Override
        public TempFileManager create() {
            return new DefaultTempFileManager();
        }
    }

    private static final String CONTENT_DISPOSITION_REGEX = "([ |\t]*Content-Disposition[ |\t]*:)(.*)";

    private static final Pattern CONTENT_DISPOSITION_PATTERN = Pattern.compile(CONTENT_DISPOSITION_REGEX, Pattern.CASE_INSENSITIVE);

    private static final String CONTENT_TYPE_REGEX = "([ |\t]*content-type[ |\t]*:)(.*)";

    private static final Pattern CONTENT_TYPE_PATTERN = Pattern.compile(CONTENT_TYPE_REGEX, Pattern.CASE_INSENSITIVE);

    private static final String CONTENT_DISPOSITION_ATTRIBUTE_REGEX = "[ |\t]*([a-zA-Z]*)[ |\t]*=[ |\t]*['|\"]([^\"^']*)['|\"]";

    private static final Pattern CONTENT_DISPOSITION_ATTRIBUTE_PATTERN = Pattern.compile(CONTENT_DISPOSITION_ATTRIBUTE_REGEX);

    class HTTPSession implements IHTTPSession {

        public static final int BUFSIZE = 8192;

        private final TempFileManager tempFileManager;

        private final OutputStream outputStream;

        private final PushbackInputStream inputStream;

        private int splitbyte;

        private int rlen;

        private String uri;

        private Method method;

        private Map<String, String> parms;

        private Map<String, String> headers;

        private CookieHandler cookies;

        private String queryParameterString;

        private String remoteIp;

        private String protocolVersion;

        public HTTPSession(TempFileManager tempFileManager, InputStream inputStream, OutputStream outputStream) {
            this.tempFileManager = tempFileManager;
            this.inputStream = new PushbackInputStream(inputStream, HTTPSession.BUFSIZE);
            this.outputStream = outputStream;
        }

        public HTTPSession(TempFileManager tempFileManager, InputStream inputStream, OutputStream outputStream, InetAddress inetAddress) {
            this.tempFileManager = tempFileManager;
            this.inputStream = new PushbackInputStream(inputStream, HTTPSession.BUFSIZE);
            this.outputStream = outputStream;
            this.remoteIp = inetAddress.isLoopbackAddress() || inetAddress.isAnyLocalAddress() ? "127.0.0.1" : inetAddress.getHostAddress().toString();
            this.headers = new HashMap<String, String>();
        }

        /**
         * Decodes the sent headers and loads the data into Key/value pairs
         */
        private void decodeHeader(BufferedReader in, Map<String, String> pre, Map<String, String> parms, Map<String, String> headers) throws ResponseException {
            try {
                // Read the request line
                String inLine = in.readLine();
                if (inLine == null) {
                    return;
                }

                StringTokenizer st = new StringTokenizer(inLine);
                if (!st.hasMoreTokens()) {
                    throw new ResponseException(Status.BAD_REQUEST, "BAD REQUEST: Syntax error. Usage: GET /example/file.html");
                }

                pre.put("method", st.nextToken());

                if (!st.hasMoreTokens()) {
                    throw new ResponseException(Status.BAD_REQUEST, "BAD REQUEST: Missing URI. Usage: GET /example/file.html");
                }

                String uri = st.nextToken();

                // Decode parameters from the URI
                int qmi = uri.indexOf('?');
                if (qmi >= 0) {
                    decodeParms(uri.substring(qmi + 1), parms);
                    uri = decodePercent(uri.substring(0, qmi));
                } else {
                    uri = decodePercent(uri);
                }

                // If there's another token, its protocol version,
                // followed by HTTP headers.
                // NOTE: this now forces header names lower case since they are
                // case insensitive and vary by client.
                if (st.hasMoreTokens()) {
                    protocolVersion = st.nextToken();
                } else {
                    protocolVersion = "HTTP/1.1";
                    NanoHTTPD.LOG.log(Level.FINE, "no protocol version specified, strange. Assuming HTTP/1.1.");
                }
                String line = in.readLine();
                while (line != null && line.trim().length() > 0) {
                    int p = line.indexOf(':');
                    if (p >= 0) {
                        headers.put(line.substring(0, p).trim().toLowerCase(Locale.US), line.substring(p + 1).trim());
                    }
                    line = in.readLine();
                }

                pre.put("uri", uri);
            } catch (IOException ioe) {
                throw new ResponseException(Status.INTERNAL_ERROR, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage(), ioe);
            }
        }

        /**
         * Decodes the Multipart Body data and put it into Key/Value pairs.
         */
        private void decodeMultipartFormData(String boundary, ByteBuffer fbuf, Map<String, String> parms, Map<String, String> files) throws ResponseException {
            try {
                int[] boundary_idxs = getBoundaryPositions(fbuf, boundary.getBytes());
                if (boundary_idxs.length < 2) {
                    throw new ResponseException(
                    Status.BAD_REQUEST, "BAD REQUEST: Content type is multipart/form-data but contains less than two boundary strings.");
                }

                final int MAX_HEADER_SIZE = 1024;
                byte[] part_header_buff = new byte[MAX_HEADER_SIZE];
                for (int bi = 0; bi < boundary_idxs.length - 1; bi++) {
                    fbuf.position(boundary_idxs[bi]);
                    int len = (fbuf.remaining() < MAX_HEADER_SIZE) ? fbuf.remaining() : MAX_HEADER_SIZE;
                    fbuf.get(part_header_buff, 0, len);
                    ByteArrayInputStream bais = new ByteArrayInputStream(part_header_buff, 0, len);
                    BufferedReader in = new BufferedReader(new InputStreamReader(bais, Charset.forName("US-ASCII")));

                    // First line is boundary string
                    String mpline = in.readLine();
                    if (!mpline.contains(boundary)) {
                        throw new ResponseException(Status.BAD_REQUEST, "BAD REQUEST: Content type is multipart/form-data but chunk does not start with boundary.");
                    }

                    String part_name = null, file_name = null, content_type = null;
                    // Parse the reset of the header lines
                    mpline = in.readLine();
                    while (mpline != null && mpline.trim().length() > 0) {
                        Matcher matcher = CONTENT_DISPOSITION_PATTERN.matcher(mpline);
                        if (matcher.matches()) {
                            String attributeString = matcher.group(2);
                            matcher = CONTENT_DISPOSITION_ATTRIBUTE_PATTERN.matcher(attributeString);
                            while (matcher.find()) {
                                String key = matcher.group(1);
                                if (key.equalsIgnoreCase("name")) {
                                    part_name = matcher.group(2);
                                } else if (key.equalsIgnoreCase("filename")) {
                                    file_name = matcher.group(2);
                                }
                            }
                        }
                        matcher = CONTENT_TYPE_PATTERN.matcher(mpline);
                        if (matcher.matches()) {
                            content_type = matcher.group(2).trim();
                        }
                        mpline = in.readLine();
                    }

                    // Read the part data
                    int part_header_len = len - (int) in.skip(MAX_HEADER_SIZE);
                    if (part_header_len >= len - 4) {
                        throw new ResponseException(Status.INTERNAL_ERROR, "Multipart header size exceeds MAX_HEADER_SIZE.");
                    }
                    int part_data_start = boundary_idxs[bi] + part_header_len;
                    int part_data_end = boundary_idxs[bi + 1] - 4;

                    fbuf.position(part_data_start);
                    if (content_type == null) {
                        // Read the part into a string
                        byte[] data_bytes = new byte[part_data_end - part_data_start];
                        fbuf.get(data_bytes);
                        parms.put(part_name, new String(data_bytes));
                    } else {
                        // Read it into a file
                        String path = saveTmpFile(fbuf, part_data_start, part_data_end - part_data_start);
                        if (!files.containsKey(part_name)) {
                            files.put(part_name, path);
                        } else {
                            int count = 2;
                            while (files.containsKey(part_name + count)) {
                                count++;
                            }
                            files.put(part_name + count, path);
                        }
                        parms.put(part_name, file_name);
                    }
                }
            } catch (ResponseException re) {
                throw re;
            } catch (Exception e) {
                throw new ResponseException(Status.INTERNAL_ERROR, e.toString());
            }
        }

        /**
         * Decodes parameters in percent-encoded URI-format ( e.g.
         * "name=Jack%20Daniels&pass=Single%20Malt" ) and adds them to given
         * Map. NOTE: this doesn't support multiple identical keys due to the
         * simplicity of Map.
         */
        private void decodeParms(String parms, Map<String, String> p) {
            if (parms == null) {
                this.queryParameterString = "";
                return;
            }

            this.queryParameterString = parms;
            StringTokenizer st = new StringTokenizer(parms, "&");
            while (st.hasMoreTokens()) {
                String e = st.nextToken();
                int sep = e.indexOf('=');
                if (sep >= 0) {
                    p.put(decodePercent(e.substring(0, sep)).trim(), decodePercent(e.substring(sep + 1)));
                } else {
                    p.put(decodePercent(e).trim(), "");
                }
            }
        }

        @Override
        public void execute() throws IOException {
            Response r = null;
            try {
                // Read the first 8192 bytes.
                // The full header should fit in here.
                // Apache's default header limit is 8KB.
                // Do NOT assume that a single read will get the entire header
                // at once!
                byte[] buf = new byte[HTTPSession.BUFSIZE];
                this.splitbyte = 0;
                this.rlen = 0;

                int read = -1;
                try {
                    read = this.inputStream.read(buf, 0, HTTPSession.BUFSIZE);
                } catch (Exception e) {
                    safeClose(this.inputStream);
                    safeClose(this.outputStream);
                    throw new SocketException("NanoHttpd Shutdown");
                }
                if (read == -1) {
                    // socket was been closed
                    safeClose(this.inputStream);
                    safeClose(this.outputStream);
                    throw new SocketException("NanoHttpd Shutdown");
                }
                while (read > 0) {
                    this.rlen += read;
                    this.splitbyte = findHeaderEnd(buf, this.rlen);
                    if (this.splitbyte > 0) {
                        break;
                    }
                    read = this.inputStream.read(buf, this.rlen, HTTPSession.BUFSIZE - this.rlen);
                }

                if (this.splitbyte < this.rlen) {
                    this.inputStream.unread(buf, this.splitbyte, this.rlen - this.splitbyte);
                }

                this.parms = new HashMap<String, String>();
                if (null == this.headers) {
                    this.headers = new HashMap<String, String>();
                } else {
                    this.headers.clear();
                }

                if (null != this.remoteIp) {
                    this.headers.put("remote-addr", this.remoteIp);
                    this.headers.put("http-client-ip", this.remoteIp);
                }

                // Create a BufferedReader for parsing the header.
                BufferedReader hin = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(buf, 0, this.rlen)));

                // Decode the header into parms and header java properties
                Map<String, String> pre = new HashMap<String, String>();
                decodeHeader(hin, pre, this.parms, this.headers);

                this.method = Method.lookup(pre.get("method"));
                if (this.method == null) {
                    throw new ResponseException(Status.BAD_REQUEST, "BAD REQUEST: Syntax error.");
                }

                this.uri = pre.get("uri");

                this.cookies = new CookieHandler(this.headers);

                String connection = this.headers.get("connection");
                boolean keepAlive = protocolVersion.equals("HTTP/1.1") && (connection == null || !connection.matches("(?i).*close.*"));

                // Ok, now do the serve()
                r = serve(this);
                if (r == null) {
                    throw new ResponseException(Status.INTERNAL_ERROR, "SERVER INTERNAL ERROR: Serve() returned a null response.");
                } else {
                    String acceptEncoding = this.headers.get("accept-encoding");
                    this.cookies.unloadQueue(r);
                    r.setRequestMethod(this.method);
                    r.setGzipEncoding(useGzipWhenAccepted(r) && acceptEncoding != null && acceptEncoding.contains("gzip"));
                    r.setKeepAlive(keepAlive);
                    r.send(this.outputStream);
                }
                if (!keepAlive || "close".equalsIgnoreCase(r.getHeader("connection"))) {
                    throw new SocketException("NanoHttpd Shutdown");
                }
            } catch (SocketException e) {
                // throw it out to close socket object (finalAccept)
                throw e;
            } catch (SocketTimeoutException ste) {
                // treat socket timeouts the same way we treat socket exceptions
                // i.e. close the stream & finalAccept object by throwing the
                // exception up the call stack.
                throw ste;
            } catch (IOException ioe) {
                Response resp = newFixedLengthResponse(Status.INTERNAL_ERROR, NanoHTTPD.MIME_PLAINTEXT, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage());
                resp.send(this.outputStream);
                safeClose(this.outputStream);
            } catch (ResponseException re) {
                Response resp = newFixedLengthResponse(re.getStatus(), NanoHTTPD.MIME_PLAINTEXT, re.getMessage());
                resp.send(this.outputStream);
                safeClose(this.outputStream);
            } finally {
                safeClose(r);
                this.tempFileManager.clear();
            }
        }

        /**
         * Find byte index separating header from body. It must be the last byte
         * of the first two sequential new lines.
         */
        private int findHeaderEnd(final byte[] buf, int rlen) {
            int splitbyte = 0;
            while (splitbyte + 3 < rlen) {
                if (buf[splitbyte] == '\r' && buf[splitbyte + 1] == '\n' && buf[splitbyte + 2] == '\r' && buf[splitbyte + 3] == '\n') {
                    return splitbyte + 4;
                }
                splitbyte++;
            }
            return 0;
        }

        /**
         * Find the byte positions where multipart boundaries start. This reads
         * a large block at a time and uses a temporary buffer to optimize
         * (memory mapped) file access.
         */
        private int[] getBoundaryPositions(ByteBuffer b, byte[] boundary) {
            int[] res = new int[0];
            if (b.remaining() < boundary.length) {
                return res;
            }

            int search_window_pos = 0;
            byte[] search_window = new byte[4 * 1024 + boundary.length];

            int first_fill = (b.remaining() < search_window.length) ? b.remaining() : search_window.length;
            b.get(search_window, 0, first_fill);
            int new_bytes = first_fill - boundary.length;

            do {
                // Search the search_window
                for (int j = 0; j < new_bytes; j++) {
                    for (int i = 0; i < boundary.length; i++) {
                        if (search_window[j + i] != boundary[i])
                            break;
                        if (i == boundary.length - 1) {
                            // Match found, add it to results
                            int[] new_res = new int[res.length + 1];
                            System.arraycopy(res, 0, new_res, 0, res.length);
                            new_res[res.length] = search_window_pos + j;
                            res = new_res;
                        }
                    }
                }
                search_window_pos += new_bytes;

                // Copy the end of the buffer to the start
                System.arraycopy(search_window, search_window.length - boundary.length, search_window, 0, boundary.length);

                // Refill search_window
                new_bytes = search_window.length - boundary.length;
                new_bytes = (b.remaining() < new_bytes) ? b.remaining() : new_bytes;
                b.get(search_window, boundary.length, new_bytes);
            } while (new_bytes > 0);
            return res;
        }

        @Override
        public CookieHandler getCookies() {
            return this.cookies;
        }

        @Override
        public final Map<String, String> getHeaders() {
            return this.headers;
        }

        @Override
        public final InputStream getInputStream() {
            return this.inputStream;
        }

        @Override
        public final Method getMethod() {
            return this.method;
        }

        @Override
        public final Map<String, String> getParms() {
            return this.parms;
        }

        @Override
        public String getQueryParameterString() {
            return this.queryParameterString;
        }

        private RandomAccessFile getTmpBucket() {
            try {
                TempFile tempFile = this.tempFileManager.createTempFile();
                return new RandomAccessFile(tempFile.getName(), "rw");
            } catch (Exception e) {
                throw new Error(e); // we won't recover, so throw an error
            }
        }

        @Override
        public final String getUri() {
            return this.uri;
        }

        @Override
        public void parseBody(Map<String, String> files) throws IOException, ResponseException {
            final int REQUEST_BUFFER_LEN = 512;
            final int MEMORY_STORE_LIMIT = 1024;
            RandomAccessFile randomAccessFile = null;
            try {
                long size;
                if (this.headers.containsKey("content-length")) {
                    size = Integer.parseInt(this.headers.get("content-length"));
                } else if (this.splitbyte < this.rlen) {
                    size = this.rlen - this.splitbyte;
                } else {
                    size = 0;
                }

                ByteArrayOutputStream baos = null;
                DataOutput request_data_output = null;

                // Store the request in memory or a file, depending on size
                if (size < MEMORY_STORE_LIMIT) {
                    baos = new ByteArrayOutputStream();
                    request_data_output = new DataOutputStream(baos);
                } else {
                    randomAccessFile = getTmpBucket();
                    request_data_output = randomAccessFile;
                }

                // Read all the body and write it to request_data_output
                byte[] buf = new byte[REQUEST_BUFFER_LEN];
                while (this.rlen >= 0 && size > 0) {
                    this.rlen = this.inputStream.read(buf, 0, (int) Math.min(size, REQUEST_BUFFER_LEN));
                    size -= this.rlen;
                    if (this.rlen > 0) {
                        request_data_output.write(buf, 0, this.rlen);
                    }
                }

                ByteBuffer fbuf = null;
                if (baos != null) {
                    fbuf = ByteBuffer.wrap(baos.toByteArray(), 0, baos.size());
                } else {
                    fbuf = randomAccessFile.getChannel().map(FileChannel.MapMode.READ_ONLY, 0, randomAccessFile.length());
                    randomAccessFile.seek(0);
                }

                // If the method is POST, there may be parameters
                // in data section, too, read it:
                if (Method.POST.equals(this.method)) {
                    String contentType = "";
                    String contentTypeHeader = this.headers.get("content-type");

                    StringTokenizer st = null;
                    if (contentTypeHeader != null) {
                        st = new StringTokenizer(contentTypeHeader, ",; ");
                        if (st.hasMoreTokens()) {
                            contentType = st.nextToken();
                        }
                    }

                    if ("multipart/form-data".equalsIgnoreCase(contentType)) {
                        // Handle multipart/form-data
                        if (!st.hasMoreTokens()) {
                            throw new ResponseException(Status.BAD_REQUEST,
                                    "BAD REQUEST: Content type is multipart/form-data but boundary missing. Usage: GET /example/file.html");
                        }

                        String boundaryStartString = "boundary=";
                        int boundaryContentStart = contentTypeHeader.indexOf(boundaryStartString) + boundaryStartString.length();
                        String boundary = contentTypeHeader.substring(boundaryContentStart, contentTypeHeader.length());
                        if (boundary.startsWith("\"") && boundary.endsWith("\"")) {
                            boundary = boundary.substring(1, boundary.length() - 1);
                        }

                        decodeMultipartFormData(boundary, fbuf, this.parms, files);
                    } else {
                        byte[] postBytes = new byte[fbuf.remaining()];
                        fbuf.get(postBytes);
                        String postLine = new String(postBytes).trim();
                        // Handle application/x-www-form-urlencoded
                        if ("application/x-www-form-urlencoded".equalsIgnoreCase(contentType)) {
                            decodeParms(postLine, this.parms);
                        } else if (postLine.length() != 0) {
                            // Special case for raw POST data => create a
                            // special files entry "postData" with raw content
                            // data
                            files.put("postData", postLine);
                        }
                    }
                } else if (Method.PUT.equals(this.method)) {
                    files.put("content", saveTmpFile(fbuf, 0, fbuf.limit()));
                }
            } finally {
                safeClose(randomAccessFile);
            }
        }

        /**
         * Retrieves the content of a sent file and saves it to a temporary
         * file. The full path to the saved file is returned.
         */
        private String saveTmpFile(ByteBuffer b, int offset, int len) {
            String path = "";
            if (len > 0) {
                FileOutputStream fileOutputStream = null;
                try {
                    TempFile tempFile = this.tempFileManager.createTempFile();
                    ByteBuffer src = b.duplicate();
                    fileOutputStream = new FileOutputStream(tempFile.getName());
                    FileChannel dest = fileOutputStream.getChannel();
                    src.position(offset).limit(offset + len);
                    dest.write(src.slice());
                    path = tempFile.getName();
                } catch (Exception e) { // Catch exception if any
                    throw new Error(e); // we won't recover, so throw an error
                } finally {
                    safeClose(fileOutputStream);
                }
            }
            return path;
        }
    }

    /**
     * Handles one session, i.e. parses the HTTP request and returns the
     * response.
     */
    public interface IHTTPSession {

        void execute() throws IOException;

        CookieHandler getCookies();

        Map<String, String> getHeaders();

        InputStream getInputStream();

        Method getMethod();

        Map<String, String> getParms();

        String getQueryParameterString();

        /**
         * @return the path part of the URL.
         */
        String getUri();

        /**
         * Adds the files in the request body to the files map.
         * 
         * @param files
         *            map to modify
         */
        void parseBody(Map<String, String> files) throws IOException, ResponseException;
    }

    /**
     * HTTP Request methods, with the ability to decode a <code>String</code>
     * back to its enum value.
     */
    public enum Method {
        GET,
        PUT,
        POST,
        DELETE,
        HEAD,
        OPTIONS,
        TRACE,
        CONNECT,
        PATCH;

        static Method lookup(String method) {
            for (Method m : Method.values()) {
                if (m.toString().equalsIgnoreCase(method)) {
                    return m;
                }
            }
            return null;
        }
    }

    /**
     * HTTP response. Return one of these from serve().
     */
    public static class Response implements Closeable {


        /**
         * Output stream that will automatically send every write to the wrapped
         * OutputStream according to chunked transfer:
         * http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.6.1
         */
        private static class ChunkedOutputStream extends FilterOutputStream {

            public ChunkedOutputStream(OutputStream out) {
                super(out);
            }

            @Override
            public void write(int b) throws IOException {
                byte[] data = {
                    (byte) b
                };
                write(data, 0, 1);
            }

            @Override
            public void write(byte[] b) throws IOException {
                write(b, 0, b.length);
            }

            @Override
            public void write(byte[] b, int off, int len) throws IOException {
                if (len == 0)
                    return;
                out.write(String.format("%x\r\n", len).getBytes());
                out.write(b, off, len);
                out.write("\r\n".getBytes());
            }

            public void finish() throws IOException {
                out.write("0\r\n\r\n".getBytes());
            }

        }

        /**
         * HTTP status code after processing, e.g. "200 OK", Status.OK
         */
        private IStatus status;

        /**
         * MIME type of content, e.g. "text/html"
         */
        private String mimeType;

        /**
         * Data of the response, may be null.
         */
        private InputStream data;

        private long contentLength;

        /**
         * Headers for the HTTP response. Use addHeader() to add lines.
         */
        private final Map<String, String> header = new HashMap<String, String>();

        /**
         * The request method that spawned this response.
         */
        private Method requestMethod;

        /**
         * Use chunkedTransfer
         */
        private boolean chunkedTransfer;

        private boolean encodeAsGzip;

        private boolean keepAlive;

        /**
         * Creates a fixed length response if totalBytes>=0, otherwise chunked.
         */
        protected Response(IStatus status, String mimeType, InputStream data, long totalBytes) {
            this.status = status;
            this.mimeType = mimeType;
            if (data == null) {
                this.data = new ByteArrayInputStream(new byte[0]);
                this.contentLength = 0L;
            } else {
                this.data = data;
                this.contentLength = totalBytes;
            }
            this.chunkedTransfer = this.contentLength < 0;
            keepAlive = true;
        }

        @Override
        public void close() throws IOException {
            if (this.data != null) {
                this.data.close();
            }
        }

        /**
         * Adds given line to the header.
         */
        public void addHeader(String name, String value) {
            this.header.put(name, value);
        }

        public InputStream getData() {
            return this.data;
        }

        public String getHeader(String name) {
            for (String headerName : header.keySet()) {
                if (headerName.equalsIgnoreCase(name)) {
                    return header.get(headerName);
                }
            }
            return null;
        }

        public String getMimeType() {
            return this.mimeType;
        }

        public Method getRequestMethod() {
            return this.requestMethod;
        }

        public IStatus getStatus() {
            return this.status;
        }

        public void setGzipEncoding(boolean encodeAsGzip) {
            this.encodeAsGzip = encodeAsGzip;
        }

        public void setKeepAlive(boolean useKeepAlive) {
            this.keepAlive = useKeepAlive;
        }

        private boolean headerAlreadySent(Map<String, String> header, String name) {
            boolean alreadySent = false;
            for (String headerName : header.keySet()) {
                alreadySent |= headerName.equalsIgnoreCase(name);
            }
            return alreadySent;
        }

        /**
         * Sends given response to the socket.
         */
        protected void send(OutputStream outputStream) {
            String mime = this.mimeType;
            SimpleDateFormat gmtFrmt = new SimpleDateFormat("E, d MMM yyyy HH:mm:ss 'GMT'", Locale.US);
            gmtFrmt.setTimeZone(TimeZone.getTimeZone("GMT"));

            try {
                if (this.status == null) {
                    throw new Error("sendResponse(): Status can't be null.");
                }
                PrintWriter pw = new PrintWriter(new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8")), false);
                pw.print("HTTP/1.1 " + this.status.getDescription() + " \r\n");

                if (mime != null) {
                    pw.print("Content-Type: " + mime + "\r\n");
                }

                if (this.header == null || this.header.get("Date") == null) {
                    pw.print("Date: " + gmtFrmt.format(new Date()) + "\r\n");
                }

                if (this.header != null) {
                    for (String key : this.header.keySet()) {
                        String value = this.header.get(key);
                        pw.print(key + ": " + value + "\r\n");
                    }
                }

                if (!headerAlreadySent(header, "connection")) {
                    pw.print("Connection: " + (this.keepAlive ? "keep-alive" : "close") + "\r\n");
                }

                if (headerAlreadySent(this.header, "content-length")) {
                    encodeAsGzip = false;
                }

                if (encodeAsGzip) {
                    pw.print("Content-Encoding: gzip\r\n");
                    setChunkedTransfer(true);
                }

                long pending = this.data != null ? this.contentLength : 0;
                if (this.requestMethod != Method.HEAD && this.chunkedTransfer) {
                    pw.print("Transfer-Encoding: chunked\r\n");
                } else if (!encodeAsGzip) {
                    pending = sendContentLengthHeaderIfNotAlreadyPresent(pw, this.header, pending);
                }
                pw.print("\r\n");
                pw.flush();
                sendBodyWithCorrectTransferAndEncoding(outputStream, pending);
                outputStream.flush();
                safeClose(this.data);
            } catch (IOException ioe) {
                NanoHTTPD.LOG.log(Level.SEVERE, "Could not send response to the client", ioe);
            }
        }

        private void sendBodyWithCorrectTransferAndEncoding(OutputStream outputStream, long pending) throws IOException {
            if (this.requestMethod != Method.HEAD && this.chunkedTransfer) {
                ChunkedOutputStream chunkedOutputStream = new ChunkedOutputStream(outputStream);
                sendBodyWithCorrectEncoding(chunkedOutputStream, -1);
                chunkedOutputStream.finish();
            } else {
                sendBodyWithCorrectEncoding(outputStream, pending);
            }
        }

        private void sendBodyWithCorrectEncoding(OutputStream outputStream, long pending) throws IOException {
            if (encodeAsGzip) {
                GZIPOutputStream gzipOutputStream = new GZIPOutputStream(outputStream);
                sendBody(gzipOutputStream, -1);
                gzipOutputStream.finish();
            } else {
                sendBody(outputStream, pending);
            }
        }

        /**
         * Sends the body to the specified OutputStream. The pending parameter
         * limits the maximum amounts of bytes sent unless it is -1, in which
         * case everything is sent.
         * 
         * @param outputStream
         *            the OutputStream to send data to
         * @param pending
         *            -1 to send everything, otherwise sets a max limit to the
         *            number of bytes sent
         * @throws IOException
         *             if something goes wrong while sending the data.
         */
        private void sendBody(OutputStream outputStream, long pending) throws IOException {
            long BUFFER_SIZE = 16 * 1024;
            byte[] buff = new byte[(int) BUFFER_SIZE];
            boolean sendEverything = pending == -1;
            while (pending > 0 || sendEverything) {
                long bytesToRead = sendEverything ? BUFFER_SIZE : Math.min(pending, BUFFER_SIZE);
                int read = this.data.read(buff, 0, (int) bytesToRead);
                if (read <= 0) {
                    break;
                }
                outputStream.write(buff, 0, read);
                if (!sendEverything) {
                    pending -= read;
                }
            }
        }

        protected long sendContentLengthHeaderIfNotAlreadyPresent(PrintWriter pw, Map<String, String> header, long size) {
            for (String headerName : header.keySet()) {
                if (headerName.equalsIgnoreCase("content-length")) {
                    try {
                        return Long.parseLong(header.get(headerName));
                    } catch (NumberFormatException ex) {
                        return size;
                    }
                }
            }

            pw.print("Content-Length: " + size + "\r\n");
            return size;
        }

        public void setChunkedTransfer(boolean chunkedTransfer) {
            this.chunkedTransfer = chunkedTransfer;
        }

        public void setData(InputStream data) {
            this.data = data;
        }

        public void setMimeType(String mimeType) {
            this.mimeType = mimeType;
        }

        public void setRequestMethod(Method requestMethod) {
            this.requestMethod = requestMethod;
        }

        public void setStatus(IStatus status) {
            this.status = status;
        }
    }

    public static final class ResponseException extends Exception {

        private static final long serialVersionUID = 6569838532917408380L;

        private final Status status;

        public ResponseException(Status status, String message) {
            super(message);
            this.status = status;
        }

        public ResponseException(Status status, String message, Exception e) {
            super(message, e);
            this.status = status;
        }

        public Status getStatus() {
            return this.status;
        }
    }

    /**
     * The runnable that will be used for the main listening thread.
     */
    public class ServerRunnable implements Runnable {

        private final int timeout;

        private IOException bindException;

        private boolean hasBinded = false;

        private ServerRunnable(int timeout) {
            this.timeout = timeout;
        }

        @Override
        public void run() {
            try {
                myServerSocket.bind(hostname != null ? new InetSocketAddress(hostname, myPort) : new InetSocketAddress(myPort));
                hasBinded = true;
            } catch (IOException e) {
                this.bindException = e;
                return;
            }
            do {
                try {
                    final Socket finalAccept = NanoHTTPD.this.myServerSocket.accept();
                    if (this.timeout > 0) {
                        finalAccept.setSoTimeout(this.timeout);
                    }
                    final InputStream inputStream = wrapStuff("SocketInputStream", finalAccept.getInputStream(), finalAccept, NanoHTTPD.this.myServerSocket);
                    NanoHTTPD.this.asyncRunner.exec(createClientHandler(finalAccept, inputStream));
                } catch (IOException e) {
                    NanoHTTPD.LOG.log(Level.FINE, "Communication with the client broken", e);
                }
            } while (!NanoHTTPD.this.myServerSocket.isClosed());
        }
    }

    /**
     * A temp file.
     * <p/>
     * <p>
     * Temp files are responsible for managing the actual temporary storage and
     * cleaning themselves up when no longer needed.
     * </p>
     */
    public interface TempFile {

        void delete() throws Exception;

        String getName();

        OutputStream open() throws Exception;
    }

    /**
     * Temp file manager.
     * <p/>
     * <p>
     * Temp file managers are created 1-to-1 with incoming requests, to create
     * and cleanup temporary files created as a result of handling the request.
     * </p>
     */
    public interface TempFileManager {

        void clear();

        TempFile createTempFile() throws Exception;
    }

    /**
     * Factory to create temp file managers.
     */
    public interface TempFileManagerFactory {

        TempFileManager create();
    }

    /**
     * Maximum time to wait on Socket.getInputStream().read() (in milliseconds)
     * This is required as the Keep-Alive HTTP connections would otherwise block
     * the socket reading thread forever (or as long the browser is open).
     */
    public static int SOCKET_READ_TIMEOUT = 5000;

    /**
     * Common MIME type for dynamic content: plain text
     */
    public static final String MIME_PLAINTEXT = "text/plain";

    /**
     * Common MIME type for dynamic content: html
     */
    public static final String MIME_HTML = "text/html";

    /**
     * Pseudo-Parameter to use to store the actual query string in the
     * parameters map for later re-processing.
     */
    private static final String QUERY_STRING_PARAMETER = "NanoHttpd.QUERY_STRING";

    /**
     * logger to log to.
     */
    private static final Logger LOG = Logger.getLogger(NanoHTTPD.class.getName());

    /**
     * Creates an SSLSocketFactory for HTTPS. Pass a loaded KeyStore and an
     * array of loaded KeyManagers. These objects must properly
     * loaded/initialized by the caller.
     */
    public static SSLServerSocketFactory makeSSLSocketFactory(KeyStore loadedKeyStore, KeyManager[] keyManagers) throws IOException {
        SSLServerSocketFactory res = null;
        try {
            TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
            trustManagerFactory.init(loadedKeyStore);
            SSLContext ctx = SSLContext.getInstance("TLS");
            ctx.init(keyManagers, trustManagerFactory.getTrustManagers(), null);
            res = ctx.getServerSocketFactory();
        } catch (Exception e) {
            throw new IOException(e.getMessage());
        }
        return res;
    }

    /**
     * Creates an SSLSocketFactory for HTTPS. Pass a loaded KeyStore and a
     * loaded KeyManagerFactory. These objects must properly loaded/initialized
     * by the caller.
     */
    public static SSLServerSocketFactory makeSSLSocketFactory(KeyStore loadedKeyStore, KeyManagerFactory loadedKeyFactory) throws IOException {
        SSLServerSocketFactory res = null;
        try {
            TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
            trustManagerFactory.init(loadedKeyStore);
            SSLContext ctx = SSLContext.getInstance("TLS");
            ctx.init(loadedKeyFactory.getKeyManagers(), trustManagerFactory.getTrustManagers(), null);
            res = ctx.getServerSocketFactory();
        } catch (Exception e) {
            throw new IOException(e.getMessage());
        }
        return res;
    }

    /**
     * Creates an SSLSocketFactory for HTTPS. Pass a KeyStore resource with your
     * certificate and passphrase
     */
    public static SSLServerSocketFactory makeSSLSocketFactory(String keyAndTrustStoreClasspathPath, char[] passphrase) throws IOException {
        SSLServerSocketFactory res = null;
        try {
            KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
            InputStream keystoreStream = NanoHTTPD.class.getResourceAsStream(keyAndTrustStoreClasspathPath);
            keystore.load(keystoreStream, passphrase);
            TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
            trustManagerFactory.init(keystore);
            KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
            keyManagerFactory.init(keystore, passphrase);
            SSLContext ctx = SSLContext.getInstance("TLS");
            ctx.init(keyManagerFactory.getKeyManagers(), trustManagerFactory.getTrustManagers(), null);
            res = ctx.getServerSocketFactory();
        } catch (Exception e) {
            throw new IOException(e.getMessage());
        }
        return res;
    }

    private static final void safeClose(Object closeable) {
        try {
            if (closeable != null) {
                if (closeable instanceof Closeable) {
                    ((Closeable) closeable).close();
                } else if (closeable instanceof Socket) {
                    ((Socket) closeable).close();
                } else if (closeable instanceof ServerSocket) {
                    ((ServerSocket) closeable).close();
                } else {
                    throw new IllegalArgumentException("Unknown object to close");
                }
            }
        } catch (IOException e) {
            NanoHTTPD.LOG.log(Level.SEVERE, "Could not close", e);
        }
    }

    private final String hostname;

    private final int myPort;

    private ServerSocket myServerSocket;

    private SSLServerSocketFactory sslServerSocketFactory;

    private Thread myThread;

    /**
     * Pluggable strategy for asynchronously executing requests.
     */
    protected AsyncRunner asyncRunner;

    /**
     * Pluggable strategy for creating and cleaning up temporary files.
     */
    private TempFileManagerFactory tempFileManagerFactory;

    /**
     * Constructs an HTTP server on given port.
     */
    public NanoHTTPD(int port) {
        this(null, port);
    }

    // -------------------------------------------------------------------------------
    // //
    //
    // Threading Strategy.
    //
    // -------------------------------------------------------------------------------
    // //

    /**
     * Constructs an HTTP server on given hostname and port.
     */
    public NanoHTTPD(String hostname, int port) {
        this.hostname = hostname;
        this.myPort = port;
        setTempFileManagerFactory(new DefaultTempFileManagerFactory());
        setAsyncRunner(new DefaultAsyncRunner());
    }

    /**
     * Forcibly closes all connections that are open.
     */
    public synchronized void closeAllConnections() {
        stop();
    }

    /**
     * create a instance of the client handler, subclasses can return a subclass
     * of the ClientHandler.
     * 
     * @param finalAccept
     *            the socket the cleint is connected to
     * @param inputStream
     *            the input stream
     * @return the client handler
     */
    protected ClientHandler createClientHandler(final Socket finalAccept, final InputStream inputStream) {
        return new ClientHandler(inputStream, finalAccept);
    }

    /**
     * Instantiate the server runnable, can be overwritten by subclasses to
     * provide a subclass of the ServerRunnable.
     * 
     * @param timeout
     *            the socet timeout to use.
     * @return the server runnable.
     */
    protected ServerRunnable createServerRunnable(final int timeout) {
        return new ServerRunnable(timeout);
    }

    /**
     * Decode parameters from a URL, handing the case where a single parameter
     * name might have been supplied several times, by return lists of values.
     * In general these lists will contain a single element.
     * 
     * @param parms
     *            original <b>NanoHTTPD</b> parameters values, as passed to the
     *            <code>serve()</code> method.
     * @return a map of <code>String</code> (parameter name) to
     *         <code>List&lt;String&gt;</code> (a list of the values supplied).
     */
    protected Map<String, List<String>> decodeParameters(Map<String, String> parms) {
        return this.decodeParameters(parms.get(NanoHTTPD.QUERY_STRING_PARAMETER));
    }

    // -------------------------------------------------------------------------------
    // //

    /**
     * Decode parameters from a URL, handing the case where a single parameter
     * name might have been supplied several times, by return lists of values.
     * In general these lists will contain a single element.
     * 
     * @param queryString
     *            a query string pulled from the URL.
     * @return a map of <code>String</code> (parameter name) to
     *         <code>List&lt;String&gt;</code> (a list of the values supplied).
     */
    protected Map<String, List<String>> decodeParameters(String queryString) {
        Map<String, List<String>> parms = new HashMap<String, List<String>>();
        if (queryString != null) {
            StringTokenizer st = new StringTokenizer(queryString, "&");
            while (st.hasMoreTokens()) {
                String e = st.nextToken();
                int sep = e.indexOf('=');
                String propertyName = sep >= 0 ? decodePercent(e.substring(0, sep)).trim() : decodePercent(e).trim();
                if (!parms.containsKey(propertyName)) {
                    parms.put(propertyName, new ArrayList<String>());
                }
                String propertyValue = sep >= 0 ? decodePercent(e.substring(sep + 1)) : null;
                if (propertyValue != null) {
                    parms.get(propertyName).add(propertyValue);
                }
            }
        }
        return parms;
    }

    /**
     * Decode percent encoded <code>String</code> values.
     * 
     * @param str
     *            the percent encoded <code>String</code>
     * @return expanded form of the input, for example "foo%20bar" becomes
     *         "foo bar"
     */
    protected String decodePercent(String str) {
        String decoded = null;
        try {
            decoded = URLDecoder.decode(str, "UTF8");
        } catch (UnsupportedEncodingException ignored) {
            NanoHTTPD.LOG.log(Level.WARNING, "Encoding not supported, ignored", ignored);
        }
        return decoded;
    }

    /**
     * @return true if the gzip compression should be used if the client
     *         accespts it. Default this option is on for text content and off
     *         for everything else.
     */
    protected boolean useGzipWhenAccepted(Response r) {
        return r.getMimeType() != null && r.getMimeType().toLowerCase().contains("text/");
    }

    public final int getListeningPort() {
        return this.myServerSocket == null ? -1 : this.myServerSocket.getLocalPort();
    }

    public final boolean isAlive() {
        return wasStarted() && !this.myServerSocket.isClosed() && this.myThread.isAlive();
    }

    public void join() throws InterruptedException {
      myThread.join();
    }

    /**
     * Call before start() to serve over HTTPS instead of HTTP
     */
    public void makeSecure(SSLServerSocketFactory sslServerSocketFactory) {
        this.sslServerSocketFactory = sslServerSocketFactory;
    }

    /**
     * Create a response with unknown length (using HTTP 1.1 chunking).
     */
    public Response newChunkedResponse(IStatus status, String mimeType, InputStream data) {
        return new Response(status, mimeType, data, -1);
    }

    /**
     * Create a response with known length.
     */
    public static Response newFixedLengthResponse(IStatus status, String mimeType, InputStream data, long totalBytes) {
        return new Response(status, mimeType, data, totalBytes);
    }

    /**
     * Create a text response with known length.
     */
    public static Response newFixedLengthResponse(IStatus status, String mimeType, String txt) {
        if (txt == null) {
            return newFixedLengthResponse(status, mimeType, new ByteArrayInputStream(new byte[0]), 0);
        } else {
            byte[] bytes;
            try {
                bytes = txt.getBytes("UTF-8");
            } catch (UnsupportedEncodingException e) {
                NanoHTTPD.LOG.log(Level.SEVERE, "encoding problem, responding nothing", e);
                bytes = new byte[0];
            }
            return newFixedLengthResponse(status, mimeType, new ByteArrayInputStream(bytes), bytes.length);
        }
    }

    /**
     * Create a text response with known length.
     */
    public static Response newFixedLengthResponse(String msg) {
        return newFixedLengthResponse(Status.OK, NanoHTTPD.MIME_HTML, msg);
    }

    /**
     * Override this to customize the server.
     * <p/>
     * <p/>
     * (By default, this returns a 404 "Not Found" plain text error response.)
     * 
     * @param session
     *            The HTTP session
     * @return HTTP response, see class Response for details
     */
    public Response serve(IHTTPSession session) {
        currentSession.set(session);
        Map<String, String> files = new HashMap<String, String>();
        Method method = session.getMethod();
        if (Method.PUT.equals(method) || Method.POST.equals(method)) {
            try {
                session.parseBody(files);
            } catch (IOException ioe) {
                return newFixedLengthResponse(Status.INTERNAL_ERROR, NanoHTTPD.MIME_PLAINTEXT, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage());
            } catch (ResponseException re) {
                return newFixedLengthResponse(re.getStatus(), NanoHTTPD.MIME_PLAINTEXT, re.getMessage());
            }
        }

        Map<String, String> parms = session.getParms();
        parms.put(NanoHTTPD.QUERY_STRING_PARAMETER, session.getQueryParameterString());
        return serve(session.getUri(), method, session.getHeaders(), parms, files);
    }

    /**
     * Override this to customize the server.
     * <p/>
     * <p/>
     * (By default, this returns a 404 "Not Found" plain text error response.)
     * 
     * @param uri
     *            Percent-decoded URI without parameters, for example
     *            "/index.cgi"
     * @param method
     *            "GET", "POST" etc.
     * @param parms
     *            Parsed, percent decoded parameters from URI and, in case of
     *            POST, data.
     * @param headers
     *            Header entries, percent decoded
     * @return HTTP response, see class Response for details
     */
    @Deprecated
    public Response serve(String uri, Method method, Map<String, String> headers, Map<String, String> parms, Map<String, String> files) {
        return newFixedLengthResponse(Status.NOT_FOUND, NanoHTTPD.MIME_PLAINTEXT, "Not Found");
    }

    /**
     * Pluggable strategy for asynchronously executing requests.
     * 
     * @param asyncRunner
     *            new strategy for handling threads.
     */
    public void setAsyncRunner(AsyncRunner asyncRunner) {
        this.asyncRunner = asyncRunner;
    }

    /**
     * Pluggable strategy for creating and cleaning up temporary files.
     * 
     * @param tempFileManagerFactory
     *            new strategy for handling temp files.
     */
    public void setTempFileManagerFactory(TempFileManagerFactory tempFileManagerFactory) {
        this.tempFileManagerFactory = tempFileManagerFactory;
    }

    /**
     * Start the server.
     * 
     * @throws IOException
     *             if the socket is in use.
     */
    public void start() throws IOException {
        start(NanoHTTPD.SOCKET_READ_TIMEOUT);
    }

    /**
     * Start the server.
     * 
     * @param timeout
     *            timeout to use for socket connections.
     * @throws IOException
     *             if the socket is in use.
     */
    public void start(final int timeout) throws IOException {
        if (this.sslServerSocketFactory != null) {
            SSLServerSocket ss = (SSLServerSocket) this.sslServerSocketFactory.createServerSocket();
            ss.setNeedClientAuth(false);
            this.myServerSocket = ss;
        } else {
            this.myServerSocket = new ServerSocket();
        }
        this.myServerSocket.setReuseAddress(true);

        ServerRunnable serverRunnable = createServerRunnable(timeout);
        this.myThread = new Thread(serverRunnable);
        //this.myThread.setDaemon(true);
        this.myThread.setName("NanoHttpd Main Listener");
        this.myThread.start();
        while (!serverRunnable.hasBinded && serverRunnable.bindException == null) {
            try {
                Thread.sleep(10L);
            } catch (Throwable e) {
                // on android this may not be allowed, that's why we
                // catch throwable the wait should be very short because we are
                // just waiting for the bind of the socket
            }
        }
        if (serverRunnable.bindException != null) {
            throw serverRunnable.bindException;
        }
        
      System.out.println("HTTP server started (listening on port " + getListeningPort() + "!)");
      printMyIPs();
    }

    /**
     * Stop the server.
     */
    public void stop() {
        try {
            safeClose(this.myServerSocket);
            this.asyncRunner.closeAll();
            if (this.myThread != null) {
                this.myThread.join();
            }
        } catch (Exception e) {
            NanoHTTPD.LOG.log(Level.SEVERE, "Could not stop all connections", e);
        }
    }

    public final boolean wasStarted() {
        return this.myServerSocket != null && this.myThread != null;
    }

  
static void printMyIPs() {
String ip;
  try {
      Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
      while (interfaces.hasMoreElements()) {
          NetworkInterface iface = interfaces.nextElement();
          // filters out 127.0.0.1 and inactive interfaces
          if (iface.isLoopback() || !iface.isUp())
              continue;

          Enumeration<InetAddress> addresses = iface.getInetAddresses();
          while(addresses.hasMoreElements()) {
              InetAddress addr = addresses.nextElement();
              ip = addr.getHostAddress();
if (ip.startsWith("127.")) continue;
boolean local = addr.isSiteLocalAddress() || ip.startsWith("fe");
              System.out.println(iface.getDisplayName() + " " + ip + " " + (local ? "(private address)" : "(public address)"));
          }
      }
  } catch (Throwable e) {
      e.printStackTrace();
  }
}
static interface IStatus {
    String getDescription();
    int getRequestStatus();
  }
  
  /**
   * Some HTTP response status codes
   */
  static enum Status implements IStatus {
      SWITCH_PROTOCOL(101, "Switching Protocols"),
      OK(200, "OK"),
      CREATED(201, "Created"),
      ACCEPTED(202, "Accepted"),
      NO_CONTENT(204, "No Content"),
      PARTIAL_CONTENT(206, "Partial Content"),
      REDIRECT(301, "Moved Permanently"),
      NOT_MODIFIED(304, "Not Modified"),
      BAD_REQUEST(400, "Bad Request"),
      UNAUTHORIZED(401, "Unauthorized"),
      FORBIDDEN(403, "Forbidden"),
      NOT_FOUND(404, "Not Found"),
      METHOD_NOT_ALLOWED(405, "Method Not Allowed"),
      REQUEST_TIMEOUT(408, "Request Timeout"),
      RANGE_NOT_SATISFIABLE(416, "Requested Range Not Satisfiable"),
      INTERNAL_ERROR(500, "Internal Server Error"),
      UNSUPPORTED_HTTP_VERSION(505, "HTTP Version Not Supported");
  
      private final int requestStatus;
  
      private final String description;
  
      Status(int requestStatus, String description) {
          this.requestStatus = requestStatus;
          this.description = description;
      }
  
      @Override
      public String getDescription() {
          return "" + this.requestStatus + " " + this.description;
      }
  
      @Override
      public int getRequestStatus() {
          return this.requestStatus;
      }
  }
}


  static abstract class DialogIO {
    String line;
    boolean eos, loud, noClose;
    
    abstract String readLineImpl();
    abstract boolean isStillConnected();
    abstract void sendLine(String line);
    abstract boolean isLocalConnection();
    abstract Socket getSocket();
    abstract void close();
    
    int getPort() { Socket s = getSocket(); return s == null ? 0 : s.getPort(); }
    
    boolean helloRead;
    int shortenOutputTo = 500;
    
    String readLineNoBlock() {
      String l = line;
      line = null;
      return l;
    }
    
    boolean waitForLine() { try {
      if (line != null) return true;
      //print("Readline");
      line = readLineImpl();
      //print("Readline done: " + line);
      if (line == null) eos = true;
      return line != null;
    } catch (Exception __e) { throw rethrow(__e); } }
    
    String readLine() {
      waitForLine();
      helloRead = true;
      return readLineNoBlock();
    }
    
    String ask(String s, Object... args) {
      if (loud) return askLoudly(s, args);
      if (!helloRead) readLine();
      if (args.length != 0) s = format3(s, args);
      sendLine(s);
      return readLine();
    }
    
    String askLoudly(String s, Object... args) {
      if (!helloRead) readLine();
      if (args.length != 0) s = format3(s, args);
      print("> " + shorten(s, shortenOutputTo));
      sendLine(s);
      String answer = readLine();
      print("< " + shorten(answer, shortenOutputTo));
      return answer;
    }
    
    void pushback(String l) {
      if (line != null)
        throw fail();
      line = l;
      helloRead = false;
    }
  }
  
  static abstract class DialogHandler {
    abstract void run(DialogIO io);
  }

static class Matches {
  String[] m;
  
  Matches() {}
  Matches(String... m) {
  this.m = m;}
  
  String get(int i) { return i < m.length ? m[i] : null; }
  String unq(int i) { return unquote(get(i)); }
  String fsi(int i) { return formatSnippetID(unq(i)); }
  String fsi() { return fsi(0); }
  String tlc(int i) { return unq(i).toLowerCase(); }
  boolean bool(int i) { return "true".equals(unq(i)); }
  String rest() { return m[m.length-1]; } // for matchStart
  int psi(int i) { return Integer.parseInt(unq(i)); }
}



// A concept should be an object, not just a string.

// Functions that should always be there for child processes:
static int concepts_internStringsLongerThan = 10;

static ThreadLocal<Boolean> concepts_unlisted = new ThreadLocal();

static interface Derefable {
  Concept get();
}

static interface IConceptIndex {
  void update(Concept c); // also for adding
  void remove(Concept c);
}

static interface IFieldIndex<A extends Concept, Val> {
  List<A> getAll(Val val);
}

static class Concepts {
  Map<Long, Concept> concepts = synchroTreeMap();
  HashMap<Class,Object> perClassData = new HashMap();
  String programID; // set to "-" for non-persistent (possibly not implemented)
  long idCounter;
  volatile long changes = 1, changesWritten;
  volatile java.util.Timer autoSaver;
  volatile boolean savingConcepts;
  int autoSaveInterval = -1000; // 1 second + wait logic
  boolean useGZIP = true, quietSave;
  ReentrantLock lock = new ReentrantLock(true);
  ReentrantLock saverLock = new ReentrantLock(true);
  long lastSaveTook, lastSaveWas;
  float maxAutoSavePercentage = 10;
  List<IConceptIndex> conceptIndices;
  Map<Class<? extends Concept>, Map<String, IFieldIndex>> fieldIndices;
  
  Concepts() {}
  Concepts(String programID) {
  this.programID = programID;}
  
  synchronized long internalID() {
    do {
      ++idCounter;
    } while (hasConcept(idCounter));
    return idCounter;
  }
  
  void initProgramID() {
    if (programID == null)
      programID = getDBProgramID();
  }
  
  // Now tries to load from bot first, then go to disk.
  Concepts load() {
    return load(false);
  }
  
  Concepts safeLoad() {
    return load(true);
  }
  
  Concepts load(boolean allDynamic) {
    initProgramID();
    if (tryToGrab(allDynamic)) return this;
    return loadFromDisk(allDynamic);
  }
  
  Concepts loadFromDisk() { return loadFromDisk(false); }
  
  Concepts loadFromDisk(boolean allDynamic) {
    clearConcepts();
    DynamicObject_loading.set(true);
    try {
      long time = now();
      Map<Long, Concept> _concepts = concepts; // empty map
      readLocally2_allDynamic.set(allDynamic);
      readLocally2(this, programID, "concepts");
      Map<Long, Concept> __concepts = concepts;
      concepts = _concepts;
      concepts.putAll(__concepts);
      int l = readLocally_stringLength;
      int tokrefs = unstructure_tokrefs;
      assignConceptsToUs();
      done("Loaded " + n(l(concepts), "concepts"), time);
      if (fileSize(getProgramFile(programID, "idCounter.structure")) != 0)
        readLocally2(this, programID, "idCounter");
      else
        calcIdCounter();
    } finally {
      DynamicObject_loading.set(null);
    }
    allChanged();
    return this;
  }
  
  Concepts loadConcepts() { return load(); }
  
  boolean tryToGrab(boolean allDynamic) {
    if (sameSnippetID(programID, getDBProgramID())) return false;
    RemoteDB db = connectToDBOpt(programID);
    try {
      if (db != null) {
        loadGrab(db.fullgrab(), allDynamic);
        return true;
      }
    } finally {
      if (db != null) db.close();
    }
    return false;
  }
  
  Concepts load(String grab) {
    return loadGrab(grab, false);
  }
  
  Concepts safeLoad(String grab) {
    return loadGrab(grab, true);
  }
  
  Concepts loadGrab(String grab, boolean allDynamic) {
    clearConcepts();
    DynamicObject_loading.set(true);
    try {
      Map<Long, Concept> map = (Map)
        (allDynamic ? safeUnstructure(grab) : unstructure(grab));
      concepts.putAll(map);
      assignConceptsToUs();
      for (long l : map.keySet())
        idCounter = max(idCounter, l);
    } finally {
      DynamicObject_loading.set(null);
    }
    allChanged();
    return this;
  }
  
  void assignConceptsToUs() {
    for (Concept c : values(concepts)) {
      c._concepts = this;
      callOpt_noArgs(c, "_doneLoading2");
    }
  }

  String progID() {
    return programID == null ? getDBProgramID() : programID;
  }
  
  Concept getConcept(String id) {
    return empty(id) ? null : getConcept(parseLong(id));
  }
  
  Concept getConcept(long id) {
    return (Concept) concepts.get((long) id);
  }
  
  Concept getConcept(RC ref) {
    return ref == null ? null : getConcept(ref.longID());
  }
  
  boolean hasConcept(long id) {
    return concepts.containsKey((long) id);
  }
  
  void deleteConcept(long id) {
    Concept c = getConcept(id);
    if (c == null)
      print("Concept " + id + " not found");
    else
      c.delete();
  }
  
  void calcIdCounter() {
    long id_ = 0;
    for (long id : keys(concepts))
      id_ = max(id_, id);
    idCounter = id_+1;
    saveLocally2(this, programID, "idCounter");
  }
  
  void saveConceptsIfDirty() { saveConcepts(); }
  void save() { saveConcepts(); }

  void saveConcepts() {
    initProgramID();
    saverLock.lock();
    savingConcepts = true;
    long start = now(), time;
    try {
      String s = null;
      //synchronized(main.class) {
      long _changes = changes;
      if (_changes == changesWritten) return;
      
      File f = getProgramFile(programID, useGZIP ? "concepts.structure.gz" : "concepts.structure");
      
      lock.lock();
      long fullTime = now();
      try {
        saveLocally2(this, programID, "idCounter");
        
        if (useGZIP) {
          saveGZStructureToFile(f, cloneMap(concepts));
          getProgramFile(programID, "concepts.structure").delete();
        } else
          s = structure(cloneMap(concepts));
      } finally {
        lock.unlock();
      }

      changesWritten = _changes; // only update when structure didn't fail
      
      if (!useGZIP) {
        time = now()-start;
        if (!quietSave)
          print("Saving " + toM(l(s)) + "M chars (" /*+ changesWritten + ", "*/ + time + " ms)");
        start = now();
        saveTextFile(f, javaTokWordWrap(s));
        getProgramFile(programID, "concepts.structure.gz").delete();
      }
      
      copyFile(f, getProgramFile(programID, "concepts.structure" + (useGZIP ? ".gz" : "") + ".backup" + ymd() + "-" + formatInt(hours(), 2)));
      time = now()-start;
      if (!quietSave)
        print(programID + ": Saved " + toK(f.length()) + " K, " + n(concepts, "concepts") + " (" + time + " ms)");
      lastSaveWas = fullTime;
      lastSaveTook = now()-fullTime;
    } finally {
      savingConcepts = false;
      saverLock.unlock();
    }
  }
  
  void _autoSaveConcepts() {
    if (autoSaveInterval < 0 && maxAutoSavePercentage != 0) {
      long pivotTime = Math.round(lastSaveWas+lastSaveTook*100.0/maxAutoSavePercentage);
      if (now() < pivotTime) {
        //print("Skipping auto-save (last save took " + lastSaveTook + ")");
        return;
      }
    }
    saveConcepts();
  }
  
  void clearConcepts() {
    concepts.clear();
    allChanged();
  }
  
  synchronized void allChanged() {
    ++changes;
  }
  
  // auto-save every second if dirty
  synchronized void autoSaveConcepts() {
    if (autoSaver == null) {
      if (isTransient()) throw fail("Can't persist transient database");
      autoSaver = doEvery_daemon(abs(autoSaveInterval), new Runnable() { public void run() { try {  _autoSaveConcepts() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "_autoSaveConcepts()"; }});
      // print("Installed auto-saver (" + autoSaveInterval + " ms, " + progID() + ")");
    }
  }
  
  void cleanMeUp() {
    if (autoSaver != null) {
      autoSaver.cancel();
      autoSaver = null;
    }
    while (savingConcepts) sleepInCleanUp(10);
    saveConceptsIfDirty();
  }
  
  Map<Long, String> getIDsAndNames() {
    Map<Long,String> map = new HashMap();
    Map<Long, Concept> cloned = cloneMap(concepts);
    for (long id : keys(cloned)) 
      map.put(id, cloned.get(id).className);
    return map;
  }
  
  void deleteConcepts(List l) {
    for (Object o : l)
      if (o instanceof Long)
        concepts.remove((Long) o);
      else if (o instanceof Concept)
        ((Concept) o).delete();
      else
        warn("Can't delete " + getClassName(o));
  }
  
  <A extends Concept> A conceptOfType(Class<A> type) {
    return firstOfType(allConcepts(), type);
  }
  
  <A extends Concept> List<A> conceptsOfType(Class<A> type) {
    return filterByType(allConcepts(), type);
  }
  
  <A extends Concept> List<A> listConcepts(Class<A> type) {
    return conceptsOfType(type);
  }
  
  <A extends Concept> List<A> list(Class<A> type) {
    return conceptsOfType(type);
  }
  
  List<Concept> list(String type) {
    return conceptsOfType(type);
  }
  
  List<Concept> conceptsOfType(String type) {
    return filterByDynamicType(allConcepts(), "main$" + type);
  }
  
  boolean hasConceptOfType(Class<? extends Concept> type) {
    return hasType(allConcepts(), type);
  }
  
  void persistConcepts() {
    loadConcepts();
    autoSaveConcepts();
  }
  
  // We love synonyms
  void conceptPersistence() {
    persistConcepts();
  }
  
  Concepts persist() { persistConcepts(); return this; }
  void persist(int interval) { autoSaveInterval = interval; persist(); }
    
  // Runs r if there is no concept of that type
  <A extends Concept> A ensureHas(Class<A> c, Runnable r) {
    A a = conceptOfType(c);
    if (a == null) {
      r.run();
      a = conceptOfType(c);
      if (a == null)
        throw fail("Concept not made by " + r + ": " + shortClassName(c));
    }
    return a;
  }
  
  // Ensures that every concept of type c1 is ref'd by a concept of
  // type c2.
  // Type of func: voidfunc(concept)
  void ensureHas(Class<? extends Concept> c1, Class<? extends Concept> c2, Object func) {
    for (Concept a : conceptsOfType(c1)) {
      Concept b = findBackRef(a, c2);
      if (b == null) {
        callF(func, a);
        b = findBackRef(a, c2);
        if (b == null)
          throw fail("Concept not made by " + func + ": " + shortClassName(c2));
      }
    }
  }
  
  // Type of func: voidfunc(concept)
  void forEvery(Class<? extends Concept> type, Object func) {
    for (Concept c : conceptsOfType(type))
      callF(func, c);
  }
  
  int deleteAll(Class<? extends Concept> type) {
    List<Concept> l = (List) conceptsOfType(type);
    for (Concept c : l) c.delete();
    return l(l);
  }
  
  Collection<Concept> allConcepts() {
    synchronized(concepts) {
      return new ArrayList(values(concepts));
    }
  }
  
  <A extends Concept> int countConcepts(Class<A> c, Object... params) {
    int n = 0;
    for (A x : list(c)) if (checkConceptFields(x, params)) ++n;
    return n;
  }

  int countConcepts(String c, Object... params) {
    int n = 0;
    for (Concept x : list(c)) if (checkConceptFields(x, params)) ++n;
    return n;
  }

  int countConcepts() {
    return l(concepts);
  }
  
  synchronized void addConceptIndex(IConceptIndex index) {
    if (conceptIndices == null)
      conceptIndices = new ArrayList();
    conceptIndices.add(index);
  }
  
  synchronized void addFieldIndex(Class<? extends Concept> c, String field, IFieldIndex index) {
    if (fieldIndices == null)
      fieldIndices = new HashMap();
    Map<String, IFieldIndex> map = fieldIndices.get(c);
    if (map == null)
      fieldIndices.put(c, map = new HashMap());
    map.put(field, index);
  }
  
  synchronized IFieldIndex getFieldIndex(Class<? extends Concept> c, String field) {
    if (fieldIndices == null) return null;
    Map<String, IFieldIndex> map = fieldIndices.get(c);
    return map == null ? null : map.get(field);
  }
  
  // inter-process methods
  
  RC xnew(String name, Object... values) {
    return new RC(cnew(name, values));
  }
  
  void xset(long id, String field, Object value) {
    xset(new RC(id), field, value);
  }
  
  void xset(RC c, String field, Object value) {
    if (value instanceof RC)
      value = getConcept((RC) value);
    cset(getConcept(c), field, value);
  }
  
  Object xget(long id, String field) {
    return xget(new RC(id), field);
  }
  
  Object xget(RC c, String field) {
    return xgetPost(cget(getConcept(c), field));
  }
  
  Object xgetPost(Object o) {
    o = deref(o);
    if (o instanceof Concept)
      return new RC((Concept) o);
    return o;
  }
  
  void xdelete(long id) {
    xdelete(new RC(id));
  }
  
  void xdelete(RC c) {
    getConcept(c).delete();
  }
  
  void xdelete(List<RC> l) {
    for (RC c : l)
      xdelete(c);
  }
  
  List<RC> xlist() {
    return map("toPassRef", allConcepts());
  }
  
  List<RC> xlist(String className) {
    return map("toPassRef", conceptsOfType(className));
  }
  
  boolean isTransient() { return eq(programID, "-"); }
  
  String xfullgrab() {
    lock.lock();
    try {
      if (changes == changesWritten && !isTransient())
        return loadConceptsStructure(programID);
      return structure(cloneMap(concepts));
    } finally {
      lock.unlock();
    }
  }
  
  void xshutdown() {
    // Killing whole VM if someone wants this DB to shut down
    cleanKillVM();
  }
  
  long xchangeCount() { return changes; }
  int xcount() { return countConcepts(); }
  
  void register(Concept c) {
    if (c._concepts == this) return;
    if (c._concepts != null) throw fail("Can't re-register");
    c._concepts = this;
    c.id = internalID();
    c.created = now();
    concepts.put((long) c.id, c);
    c.change();
  }
  
} // class Concepts

static volatile Concepts mainConcepts = new Concepts(); // Where we create new concepts

static class Concept extends DynamicObject {
  transient Concepts _concepts; // Where we belong
  long id;
  //O madeBy;
  //double energy;
  //bool defunct;
  long created;
  
  // used only internally (cnew)
  Concept(String className) {
    super(className);
    _created();
  }
  
  Concept() {
    if (!_loading()) {
      //className = shortClassName(this); // XXX - necessary?
      //print("New concept of type " + className);
      _created();
    }
  }
  
  List<Ref> refs;
  List<Ref> backRefs;
  
  static boolean loading() { return _loading(); }
  static boolean _loading() { return isTrue(DynamicObject_loading.get()); }

  void _created() {
    if (!isTrue(concepts_unlisted.get()))
      mainConcepts.register(this);
  }
  
  /*void put(S field, O value) {
    fieldValues.put(field, value);
    change();
  }
  
  O get(S field) {
    ret fieldValues.get(field);
  }*/
  
  class Ref<A extends Concept> {
    A value;
    
    Ref() {
      if (!isTrue(DynamicObject_loading.get())) refs = addDyn(refs, this);
    }
    
    Ref(A value) {
  this.value = value;
      refs = addDyn(refs, this);
      index();
    }
    
    // get owning concept (source)
    Concept concept() {
      return Concept.this;
    }
    
    // get target
    A get() { return value; }
    boolean has() { return value != null; }
    
    void set(A a) {
      if (a == value) return;
      unindex();
      value = a;
      index();
    }
    
    void set(Ref<A> ref) { set(ref.get()); }
    void clear() { set((A) null); }
    
    void index() { 
      if (value != null)
        value.backRefs = addDyn(value.backRefs, this);
      change();
    }
    
    void unindex() {
      if (value != null)
        value.backRefs = removeDyn(value.backRefs, this);
    }
    
    void change() {
      Concept.this.change();
    }
  }
  
  class RefL<A extends Concept> extends AbstractList<A> {
    List < Ref < A > > l = new ArrayList();
    
    public A set(int i, A o) {
      A prev = l.get(i).get();
      l.get(i).set(o);
      return prev;
    }
    
    public void add(int i, A o) {
      l.add(i, new Ref(o));
    }
    
    public A get(int i) {
      return l.get(i).get();
    }
    
    public A remove(int i) {
      return l.remove(i).get();
    }
    
    public int size() {
      return l.size();
    }
    
    public boolean contains(Object o) {
      if (o instanceof Concept)
        for (Ref<A> r : l) if (eq(r.get(), o)) return true;
      return super.contains(o);
    }
  }
  
  void delete() {
    //name = "[defunct " + name + "]";
    //defunct = true;
    //energy = 0;
    for (Ref r : unnull(refs))
      r.unindex();
    refs = null;
    for (Ref r : cloneList(backRefs))
      r.set((Concept) null);
    backRefs = null;
    
    if (_concepts != null) {
      _concepts.concepts.remove((long) id);
      _concepts.allChanged();
      if (_concepts.conceptIndices != null)
        for (IConceptIndex index : _concepts.conceptIndices)
          index.remove(this);
      _concepts = null;
    }
    id = 0;
  }
  
  BaseXRef export() {
    return new BaseXRef(_concepts.progID(), id);
  }
  
  // notice system of a change in this object
  void change() {
    if (_concepts != null) {
      _concepts.allChanged();
      if (_concepts.conceptIndices != null)
        for (IConceptIndex index : _concepts.conceptIndices)
          index.update(this);
    }
  }
  
  String _programID() {
    return _concepts == null ? getDBProgramID() : _concepts.progID();
  }
} // class Concept

// remote reference (for inter-process communication or
// external databases). Formerly "PassRef".
// prepared for string ids if we do them later
static class RC {
  transient Object owner;
  String id;
  
  RC() {} // make serialisation happy
  RC(long id) { this.id = str(id); }
  RC(Object owner, long id) { this.id = str(id); this.owner = owner; }
  RC(Concept c) { this(c.id); }
  long longID() { return parseLong(id); }
  
  public String toString() {
    return id;
  }

  transient RemoteDB db;
  
  String getString(String field) { return db.xS(this, field); }
  Object get(String field) { return db.xget(this, field); }
  void set(String field, Object value) { db.xset(this, field, value); }

}

// Reference to a concept in another program
static class BaseXRef {
  String programID;
  long id;
    
  BaseXRef() {}
  BaseXRef(String programID, long id) {
  this.id = id;
  this.programID = programID;}
  
  public boolean equals(Object o) {
    if (!(o instanceof BaseXRef)) return false;
    BaseXRef r = (BaseXRef) ( o);
    return eq(programID, r.programID) && eq(id, r.id);
  }
  
  public int hashCode() {
    return programID.hashCode() + (int) id;
  }
}

// BaseXRef as a concept
static class XRef extends Concept {
  BaseXRef ref;
  
  XRef() {}
  XRef(BaseXRef ref) {
  this.ref = ref; _doneLoading2(); }
  
  // after we have been added to concepts
  void _doneLoading2() {
    getIndex().put(ref, this);
  }
    
  HashMap<BaseXRef, XRef> getIndex() {
    return getXRefIndex(_concepts);
  }
}

static synchronized HashMap<BaseXRef, XRef> getXRefIndex(Concepts concepts) {
  HashMap cache = (HashMap) concepts.perClassData.get(XRef.class);
  if (cache == null)
    concepts.perClassData.put(XRef.class, cache = new HashMap());
  return cache;
}

// uses mainConcepts
static XRef lookupOrCreateXRef(BaseXRef ref) {
  XRef xref = getXRefIndex(mainConcepts).get(ref);
  if (xref == null)
    xref = new XRef(ref);
  return xref;
}

// define standard concept functions to use main concepts

static <A extends Concept> List<A> list(Class<A> type) {
  return mainConcepts.list(type);
}

static <A extends Concept> List<A> list(Concepts concepts, Class<A> type) {
  return concepts.list(type);
}

static List<Concept> list(String type) {
  return mainConcepts.list(type);
}

static List<Concept> list(Concepts concepts, String type) {
  return concepts.list(type);
}

static int csetAll(Concept c, Object... values) {
  return cset(c, values);
}

static void cleanMeUp_concepts() {
  mainConcepts.cleanMeUp();
}

static void loadAndAutoSaveConcepts() {
  mainConcepts.persist();
}

static void loadAndAutoSaveConcepts(int interval) {
  mainConcepts.persist(interval);
}

static void loadConceptsFrom(String progID) {
  mainConcepts.programID = progID;
  mainConcepts.load();
}

static List<Concept> conceptsOfType(String type) {
  return mainConcepts.conceptsOfType(type);
}

static long changeCount() {
  return mainConcepts.changes;
}

static List<String> exposedDBMethods = ll("xlist", "xnew", "xset", "xdelete", "xget", "xclass", "xfullgrab", "xshutdown", "xchangeCount", "xcount");

static RC toPassRef(Concept c) {
  return new RC(c);
}

// so we can instantiate the program to run as a bare DB bot
static <A, B> Map<A, B> mapInConcept(Concept c, Map<A, B> m) {
  return new MapInConcept(m, c);
}
static void duplicateThisProgram() {
  nohupJavax(trim(programID() + " " + smartJoin((String[]) get(getJavaX(), "fullArgs"))));
}
static File createTempFile(String prefix, String suffix) { try {
  // File.createTempFile needs at least 3 prefix characters, so we
  // fíll them up for you
  return File.createTempFile(pad(nohup_sanitize(prefix), 3, '-'), nohup_sanitize(suffix));
} catch (Exception __e) { throw rethrow(__e); } }
static Thread startThread(Object runnable) {
  return startThread(defaultThreadName(), runnable);
}

static Thread startThread(String name, Object runnable) {
  return startThread(newThread(toRunnable(runnable), name));
}

static Thread startThread(Thread t) {
  _registerThread(t);
  t.start();
  return t;
}
static Throwable printStackTrace2(Throwable e) {
  // we go to system.out now - system.err is nonsense
  print(getStackTrace2(e));
  return e;
}

static void printStackTrace2() {
  printStackTrace2(new Throwable());
}

static void printStackTrace2(String msg) {
  printStackTrace2(new Throwable(msg));
}

/*static void printStackTrace2(S indent, Throwable e) {
  if (endsWithLetter(indent)) indent += " ";
  printIndent(indent, getStackTrace2(e));
}*/
static void lock(Lock lock) { try {
  lock.lockInterruptibly();
} catch (Exception __e) { throw rethrow(__e); } }

static void lock(Lock lock, String msg) {
  print("Locking: " + msg);
  lock(lock);
}

static void lock(Lock lock, String msg, long timeout) {
  print("Locking: " + msg);
  lockOrFail(lock, timeout);
}

static ReentrantLock lock() {
  return fairLock();
}
static void swingNowOrLater(Runnable r) {
  if (isAWTThread())
    r.run();
  else
    swingLater(r);
}
static <A> Set<A> setInConcept(Concept c, Set<A> m) {
  return new SetInConcept(m, c);
}
static String fsi(String id) {
  return formatSnippetID(id);
}
static void change() {
  mainConcepts.allChanged();
}
static long stopTiming_defaultMin = 10;

static long startTiming_startTime;
static void startTiming() {
  startTiming_startTime = now();
}

static void stopTiming() {
  stopTiming(null);
}

static void stopTiming(String text) {
  stopTiming(text, stopTiming_defaultMin);
}

static void stopTiming(String text, long minToPrint) {
  long time = now()-startTiming_startTime;
  if (time >= minToPrint) {
    text = or2(text, "Time: ");
    print(text + time + " ms");
  }
}
static void substance() {
  substanceLAF();
}

static void substance(String skinName) {
  substanceLAF(skinName);
}
// name currently not used, we only call a method called "_wrap" in
// the main class with the to-wrapped object as first argument and
// a list of other parameters as second argument.
static <A> A wrapStuff(String name, A object, Object... args) {
  //ret or(object, (A) callOpt(mc(), "wrap" + name,
  //  toObjectArray(concatLists(litlist((O) object), toList(args)))));
  return or((A) callOpt(mc(), "_wrap", object, asList(args)), object);
}
  static File tempDir() {
    return makeTempDir();
  }
static void printMyIPs() {
String ip;
  try {
      Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
      while (interfaces.hasMoreElements()) {
          NetworkInterface iface = interfaces.nextElement();
          // filters out 127.0.0.1 and inactive interfaces
          if (iface.isLoopback() || !iface.isUp())
              continue;

          Enumeration<InetAddress> addresses = iface.getInetAddresses();
          while(addresses.hasMoreElements()) {
              InetAddress addr = addresses.nextElement();
              ip = addr.getHostAddress();
if (ip.startsWith("127.")) continue;
boolean local = addr.isSiteLocalAddress() || ip.startsWith("fe");
              System.out.println(iface.getDisplayName() + " " + ip + " " + (local ? "(private address)" : "(public address)"));
          }
      }
  } catch (Throwable e) {
      e.printStackTrace();
  }
}
static String className(Object o) {
  return getClassName(o);
}
static void restart() {
  Object j = getJavaX();
  call(j, "cleanRestart", get(j, "fullArgs"));
}
static <A> IVar<A> varInConcept(Concept c, IVar<A> v) {
  return new VarInConcept(v, c);
}
  static String base64encode(byte[] a) {
    int aLen = a.length;
    int numFullGroups = aLen/3;
    int numBytesInPartialGroup = aLen - 3*numFullGroups;
    int resultLen = 4*((aLen + 2)/3);
    StringBuffer result = new StringBuffer(resultLen);
    char[] intToAlpha = intToBase64;

    // Translate all full groups from byte array elements to Base64
    int inCursor = 0;
    for (int i=0; i<numFullGroups; i++) {
      int byte0 = a[inCursor++] & 0xff;
      int byte1 = a[inCursor++] & 0xff;
      int byte2 = a[inCursor++] & 0xff;
      result.append(intToAlpha[byte0 >> 2]);
      result.append(intToAlpha[(byte0 << 4)&0x3f | (byte1 >> 4)]);
      result.append(intToAlpha[(byte1 << 2)&0x3f | (byte2 >> 6)]);
      result.append(intToAlpha[byte2 & 0x3f]);
    }

    // Translate partial group if present
    if (numBytesInPartialGroup != 0) {
      int byte0 = a[inCursor++] & 0xff;
      result.append(intToAlpha[byte0 >> 2]);
      if (numBytesInPartialGroup == 1) {
        result.append(intToAlpha[(byte0 << 4) & 0x3f]);
        result.append("==");
      } else {
        // assert numBytesInPartialGroup == 2;
        int byte1 = a[inCursor++] & 0xff;
        result.append(intToAlpha[(byte0 << 4)&0x3f | (byte1 >> 4)]);
        result.append(intToAlpha[(byte1 << 2)&0x3f]);
        result.append('=');
      }
    }
    // assert inCursor == a.length;
    // assert result.length() == resultLen;
    return result.toString();
  }

  /**
   * This array is a lookup table that translates 6-bit positive integer
   * index values into their "Base64 Alphabet" equivalents as specified
   * in Table 1 of RFC 2045.
   */
  static final char intToBase64[] = {
    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
    'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
    'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
    'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'
  };
static <A, B> Collection<B> values(Map<A, B> map) {
  return map == null ? emptyList() : map.values();
}

static <A> List<A> listInConcept(Concept c, List<A> l) {
  return new ListInConcept(l, c);
}

static <A> List<A> listInConcept(Concept c) {
  return new ListInConcept(new ArrayList(), c);
}
static String firstToUpper(String s) {
  if (empty(s)) return s;
  return Character.toUpperCase(s.charAt(0)) + s.substring(1);
}


static String pad(String s, int l) {
  return pad(s, l, ' ');
}

static String pad(String s, int l, char c) {
  if (l(s) >= l) return s;
  return rep(c, l-l(s)) + s;
}
static String substanceLAF_defaultSkin = "Creme";

static void substanceLAF() {
  substanceLAF(null);
}

static void substanceLAF(String skinName) {
  try {
    enableSubstance_impl(or2(skinName, substanceLAF_defaultSkin));
  } catch (Throwable __e) { printStackTrace2(__e); }
}
  static File makeTempDir() {
    return (File) call(getJavaX(), "TempDirMaker_make");
  }
// runnable = Runnable or String (method name)
static Thread newThread(Object runnable) {
  return new Thread(_topLevelErrorHandling(toRunnable(runnable)));
}

static Thread newThread(Object runnable, String name) {
  return new Thread(_topLevelErrorHandling(toRunnable(runnable)), name);
}
static void lockOrFail(Lock lock, long timeout) { try {
  if (!lock.tryLock(timeout, TimeUnit.MILLISECONDS)) {
    String s = "Couldn't acquire lock after " + timeout + " ms.";
    if (lock instanceof ReentrantLock) {
      ReentrantLock l = (ReentrantLock) ( lock);
      s += " Hold count: " + l.getHoldCount() + ", owner: " + call(l, "getOwner");
    }
    throw fail(s);
  }
} catch (Exception __e) { throw rethrow(__e); } }
static String getStackTrace2(Throwable throwable) {
  return getStackTrace(throwable) + replacePrefix("java.lang.RuntimeException: ", "FAIL: ",
    str(getInnerException(throwable))) + "\n";
}
static String defaultThreadName_name;

static String defaultThreadName() {
  if (defaultThreadName_name == null)
    defaultThreadName_name = "A thread by " + programID();
  return defaultThreadName_name;
}
// Try to get the quoting right...

static String smartJoin(String[] args) {
  if (args.length == 1) return args[0];
  
  String[] a = new String[args.length];
  for (int i = 0; i < a.length; i++)
    a[i] = !isJavaIdentifier(args[i]) && !isQuoted(args[i]) ? quote(args[i]) : args[i];
  return join(" ", a);
}

static String smartJoin(List<String> args) {
  return smartJoin(toStringArray(args));
}


static String replacePrefix(String prefix, String replacement, String s) {
  if (!startsWith(s, prefix)) return s;
  return replacement + substring(s, l(prefix));
}
// supports the usual quotings (', ", variable length double brackets)
static boolean isQuoted(String s) {
  if (startsWith(s, "'") || startsWith(s, "\"")) return true;
  return isMultilineQuoted(s);
}
static String rep(int n, char c) {
  return repeat(c, n);
}

static String rep(char c, int n) {
  return repeat(c, n);
}

static <A> List<A> rep(A a, int n) {
  return repeat(a, n);
}

static <A> List<A> rep(int n, A a) {
  return repeat(n, a);
}

static Runnable _topLevelErrorHandling(final Runnable runnable) {
  return new Runnable() { public void run() { try {  try { runnable.run(); } catch (Throwable __e) { printStackTrace2(__e); } 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "pcall { runnable.run(); }"; }};
}
 // Substance
 // Trident (required by Substance)




static void enableSubstance_impl(final String skinName) { swingAndWait(new Runnable() { public void run() { try { 
  if (!substanceLookAndFeelEnabled())
    enableSubstance_impl_2(skinName);

} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (!substanceLookAndFeelEnabled())\r\n    enableSubstance_impl_2(skinName);"; }}); }

static void enableSubstance_impl_2(String skinName) { try {
  boolean wasEnabled = substanceLookAndFeelEnabled();
  ClassLoader cl = main.class.getClassLoader();
  UIManager.getDefaults().put("ClassLoader", cl);
  Thread.currentThread().setContextClassLoader(cl);
  String skinClassName = "org.pushingpixels.substance.api.skin." + addSuffix(skinName, "Skin");
  SubstanceSkin skin = (SubstanceSkin) nuObject(cl.loadClass(skinClassName));
  SubstanceLookAndFeel.setSkin(skin);
  JFrame.setDefaultLookAndFeelDecorated(true);  
  updateLookAndFeelOnAllWindows_noRenew();
  if (!wasEnabled) renewConsoleFrame();
  
  if (substanceLookAndFeelEnabled())
    print("Substance L&F enabled.");
  else
    print("Could not enable Substance L&F?");
} catch (Exception __e) { throw rethrow(__e); } }
static String[] toStringArray(Collection<String> c) {
  String[] a = new String[l(c)];
  Iterator<String> it = c.iterator();
  for (int i = 0; i < l(a); i++)
    a[i] = it.next();
  return a;
}

static String[] toStringArray(Object o) {
  if (o instanceof String[])
    return (String[]) o;
  else if (o instanceof Collection)
    return toStringArray((Collection<String>) o);
  else
    throw fail("Not a collection or array: " + getClassName(o));
}



static void renewConsoleFrame() {
  setConsoleFrame(renewFrame(consoleFrame()));
}
static void updateLookAndFeelOnAllWindows_noRenew() {
  for (Window window : Window.getWindows())
    SwingUtilities.updateComponentTreeUI(window);
}
static String addSuffix(String s, String suffix) {
  return s.endsWith(suffix) ? s : s + suffix;
}
static boolean isMultilineQuoted(String s) {
  if (!startsWith(s, "[")) return false;
  int i = 1;
  while (i < s.length() && s.charAt(i) == '=') ++i;
  return i < s.length() && s.charAt(i) == '[';
}


static void setConsoleFrame(JFrame frame) {
   setOpt(get(getJavaX(), "console"), "frame", frame);
}
static JFrame renewFrame(final JFrame frame) {
  if (frame == null) return null;
  return (JFrame) swing(new Object() { Object get() { try { 
    Container content = frame.getContentPane();
    JFrame frame2 = makeFrame(frame.getTitle());
    frame2.setBounds(frame.getBounds());
    try { frame2.setIconImages(frame.getIconImages()); } catch (Throwable __e) { printStackTrace2(__e); }
    frame2.setDefaultCloseOperation(frame.getDefaultCloseOperation());
    for (WindowListener wl : frame.getWindowListeners())
      frame2.addWindowListener(wl);
    frame.setContentPane(new JPanel());
    frame2.setContentPane(content);
    frame2.setVisible(true);
    frame.dispose();
    return frame2;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "Container content = frame.getContentPane();\r\n    JFrame frame2 = makeFrame(frame..."; }});
}


static class VarInConcept<A> implements IVar<A> {
  IVar<A> v;
  Concept cc;
  
  VarInConcept() {} // for persistence
  VarInConcept(IVar<A> v, Concept cc) {
  this.cc = cc;
  this.v = v;}
  
  public void set(A a) { v.set(a); change(); }
  public synchronized A get() { return v.get(); }
  public synchronized boolean has() { return v.has(); }
  public synchronized void clear() { v.clear(); change(); }
  
  void change() { if (cc != null) cc.change(); }
  
  IVar<A> unwrap() { return v; }
}

static interface IVar<A> {
  void set(A a);
  A get();
  boolean has();
  void clear();
}

static class SetInConcept<E> extends CollectionInConcept<E> implements Set<E> {
  SetInConcept() {} // for persistence
  SetInConcept(Set<E> set, Concept cc) {
    super(set, cc);
  }
  
  public boolean equals(Object o) {
      if (this == o)
          return true;
      synchronized (this) {return c.equals(o);}
  }
  
  public int hashCode() {
      synchronized (this) {return c.hashCode();}
  }
}

static class MapInConcept<K, V> implements Map<K, V> {
  Map<K, V> m;  // Backing Map
  Concept cc;

  MapInConcept() {} // for persistence
  MapInConcept(Map<K, V> m, Concept cc) {
  this.cc = cc;
  this.m = m;}

  public int size() {
      synchronized (this) {return m.size();}
  }
  public boolean isEmpty() {
      synchronized (this) {return m.isEmpty();}
  }
  public boolean containsKey(Object key) {
      synchronized (this) {return m.containsKey(key);}
  }
  public boolean containsValue(Object value) {
      synchronized (this) {return m.containsValue(value);}
  }
  public V get(Object key) {
      synchronized (this) {return m.get(key);}
  }

  public V put(K key, V value) {
      try { synchronized (this) {return m.put(key, value);} } finally { cc.change(); }
  }
  public V remove(Object key) {
      try { synchronized (this) {return m.remove(key);} } finally { cc.change(); }
  }
  public void putAll(Map<? extends K, ? extends V> map) {
      synchronized (this) {m.putAll(map);} cc.change();
  }
  public void clear() {
      synchronized (this) {m.clear();} cc.change();
  }

  private transient Set<K> keySet;
  private transient Set<Map.Entry<K,V>> entrySet;
  private transient Collection<V> values;

  public Set<K> keySet() {
      synchronized (this) {
          if (keySet==null)
              keySet = new SynchronizedSet(m.keySet(), this);
          return keySet;
      }
  }

  public Set<Map.Entry<K,V>> entrySet() {
      synchronized (this) {
          if (entrySet==null)
              entrySet = new SynchronizedSet(m.entrySet(), this);
          return entrySet;
      }
  }

  public Collection<V> values() {
      synchronized (this) {
          if (values==null)
              values = new SynchronizedCollection(m.values(), this);
          return values;
      }
  }

  public boolean equals(Object o) {
      if (this == o)
          return true;
      synchronized (this) {return m.equals(o);} // TODO: deadlock?
  }
  public int hashCode() {
      synchronized (this) {return m.hashCode();}
  }
  public String toString() {
      synchronized (this) {return m.toString();}
  }

  // 1.8 stuff omitted
  
  Map<K, V> unwrap() { return m; }
}

static class ListInConcept<E> extends CollectionInConcept<E> implements List<E> {
  List<E> list;
  
  ListInConcept() {} // for persistence

  ListInConcept(List<E> list, Concept cc) {
    super(list, cc);
    this.list = list;
  }
  
  public boolean equals(Object o) {
      if (this == o)
          return true;
      synchronized (this) {return list.equals(o);}
  }
  public int hashCode() {
      synchronized (this) {return list.hashCode();}
  }

  public E get(int index) {
      synchronized (this) {return list.get(index);}
  }
  public E set(int index, E element) {
      synchronized (this) {return list.set(index, element);}
  }
  public void add(int index, E element) {
      synchronized (this) {list.add(index, element);} change();
  }
  public E remove(int index) {
    E e;
    synchronized (this) { e = list.remove(index); }
    change();
    return e;
  }

  public int indexOf(Object o) {
      synchronized (this) {return list.indexOf(o);}
  }
  public int lastIndexOf(Object o) {
      synchronized (this) {return list.lastIndexOf(o);}
  }

  public boolean addAll(int index, Collection<? extends E> c) {
      synchronized (this) {if (!list.addAll(index, c)) return false;} change(); return true;
  }

  public ListIterator<E> listIterator() {
      return list.listIterator(); // doesn't implement all methods
  }

  public ListIterator<E> listIterator(int index) {
      return list.listIterator(index); // doesn't implement all methods
  }

  public List<E> subList(int fromIndex, int toIndex) {
      synchronized (this) {
          return new ListInConcept<>(list.subList(fromIndex, toIndex), cc);
      }
  }

  /*public void replaceAll(UnaryOperator<E> operator) {
      synchronized (this) {list.replaceAll(operator);}
  }*/
  
  public void sort(Comparator<? super E> c) {
      synchronized (this) {list.sort(c);} change();
  }
}

static class RemoteDB {
  DialogIO db;
  String name;
  
  // s = bot name or snippet ID
  RemoteDB(String s) {
    this(s, false);
  }
  
  RemoteDB(String s, boolean autoStart) {
    name = s;
    if (isSnippetID(s)) name = dbBotName(s);
    db = findBot(name);
    if (db == null)
      if (autoStart) {
        nohupJavax(fsI(s));
        waitForBotStartUp(name);
        assertNotNull("Weird problem", db = findBot(s));
      } else
        throw fail("DB " + s + " not running");
  }

  boolean functional() { return db != null; } // now always true
  
  List<RC> list() { return adopt((List<RC>) rpc(db, "xlist")); }
  List<RC> list(String className) { return adopt((List<RC>) rpc(db, "xlist", className)); }
  List<RC> xlist() { return list(); }
  List<RC> xlist(String className) { return list(className); }
  
  // adopt is an internal method
  List<RC> adopt(List<RC> l) {
    if (l != null) for (RC rc : l) adopt(rc);
    return l;
  }
  
  RC adopt(RC rc) { if (rc != null) rc.db = this; return rc; }
  
  Object adopt(Object o) {
    if (o instanceof RC) return adopt((RC) o);
    return o;
  }
  
  String xclass(RC o) {
    return (String) rpc(db, "xclass", o);
  }
  
  Object xget(RC o, String field) {
    return adopt(rpc(db, "xget", o, field));
  }
  
  String xS(RC o, String field) {
    return (String) xget(o, field);
  }
  
  RC xgetref(RC o, String field) {
    return adopt((RC) xget(o, field));
  }
  
  void xset(RC o, String field, Object value) {
    rpc(db, "xset", o, field, value);
  }
  
  RC uniq(String className) {
    RC ref = first(list(className));
    if (ref == null)
      ref = xnew(className);
    return ref;
  }
  RC xuniq(String className) { return uniq(className); }
  
  RC xnew(String className, Object... values) {
    return adopt((RC) rpc(db, "xnew", className, values));
  }
  
  void xdelete(RC o) {
    rpc(db, "xdelete", o);
  }
  
  void xdelete(List<RC> l) {
    rpc(db, "xdelete", l);
  }

  void close() {
    if (db != null)
      db.close();
  }
  
  String fullgrab() { return (String) rpc(db, "xfullgrab"); }
  String xfullgrab() { return fullgrab(); }
  
  void xshutdown() { rpc(db, "xshutdown"); }
  
  long xchangeCount() { return (long) rpc(db, "xchangeCount"); }
  int xcount() { return (int) rpc(db, "xcount"); }

  void reconnect() {
    close();
    db = findBot(name);
  }
  
  RC rc(long id) { return new RC(this, id); }
}

static Concept getConcept(long id) {
  return mainConcepts.getConcept(id);
}

static <A extends Concept> A getConcept(Class<A> cc, long id) {
  return getConcept(mainConcepts, cc, id);
}

static <A extends Concept> A getConcept(Concepts concepts, Class<A> cc, long id) {
  Concept c = concepts.getConcept(id);
  if (c == null) return null;
  if (!isInstance(cc, c))
    throw fail("Can't convert concept: " + getClassName(c) + " -> " + getClassName(cc) + " (" + id + ")");
  return (A) c;
}
static Collection<Concept> allConcepts() {
  return mainConcepts.allConcepts();
}

static Collection<Concept> allConcepts(Concepts concepts) {
  return concepts.allConcepts();
}

// firstDelay = delay
static java.util.Timer doEvery_daemon(int delay, final Object r) {
  return doEvery_daemon(delay, delay, r);
}

static java.util.Timer doEvery_daemon(int delay, int firstDelay, final Object r) {
  final java.util.Timer timer = new java.util.Timer(true);
  timer.scheduleAtFixedRate(smartTimerTask(r, timer, delay), firstDelay, delay);
  return timer;
}

static float abs(float f) { return Math.abs(f); }
static int abs(int i) { return Math.abs(i); }
static double abs(double d) { return Math.abs(d); }
static String loadConceptsStructure(String progID) {
  return loadTextFilePossiblyGZipped(getProgramFile(progID, "concepts.structure"));
}

static String loadConceptsStructure() {
  return loadConceptsStructure(dbProgramID());
}
static void saveGZStructureToFile(File file, Object o) { try {
  File parentFile = file.getParentFile();
  if (parentFile != null)
    parentFile.mkdirs();
  File tempFile = tempFileFor(file);
  if (tempFile.exists()) try {
    String saveName = tempFile.getPath() + ".saved." + now();
    copyFile(tempFile, new File(saveName));
  } catch (Throwable e) { printStackTrace(e); }
  
  FileOutputStream fileOutputStream = newFileOutputStream(tempFile.getPath());
  GZIPOutputStream gos = new GZIPOutputStream(fileOutputStream);
  OutputStreamWriter outputStreamWriter = new OutputStreamWriter(gos, "UTF-8");
  PrintWriter printWriter = new PrintWriter(outputStreamWriter);
  structureToPrintWriter(o, printWriter);
  printWriter.close();
  gos.close();
  fileOutputStream.close();

  if (file.exists() && !file.delete())
    throw new IOException("Can't delete " + file.getPath());

  if (!tempFile.renameTo(file))
    throw new IOException("Can't rename " + tempFile + " to " + file);
} catch (Exception __e) { throw rethrow(__e); } }
static <A> void remove(List<A> l, int i) {
  if (l != null && i >= 0 && i < l(l))
    l.remove(i);
}

static <A> void remove(Collection<A> l, A a) {
  if (l != null) l.remove(a);
}
static RemoteDB connectToDBOpt(String dbNameOrID) { try {
  return new RemoteDB(dbNameOrID);
} catch (Throwable __e) { return null; } }
static <A> List<A> addDyn(List<A> l, A a) {
  if (l == null) l = new ArrayList();
  l.add(a);
  return l;
}
static long toK(long l) {
  return (l+1023)/1024;
}
// returns number of changes
static int cset(Concept c, Object... values) { try {
  int changes = 0;
  values = expandParams(c.getClass(), values);
  warnIfOddCount(values);
  for (int i = 0; i+1 < l(values); i += 2) {
    String field = (String) values[i];
    Object value = values[i+1];
    Field f = setOpt_findField(c.getClass(), field);
    //print("cset: " + c.id + " " + field + " " + struct(value) + " " + f);
    if (value instanceof RC) value = c._concepts.getConcept((RC) value);
    value = deref(value);
    
    if (value instanceof String && l((String) value) >= concepts_internStringsLongerThan) value = ((String) value).intern();
    
    if (f == null) {
      // TODO: keep ref if it exists
      mapPut2(c.fieldValues, field, value instanceof Concept ? c.new Ref((Concept) value) : value);
      c.change();
    } else if (isSubtypeOf(f.getType(), Concept.Ref.class)) {
      ((Concept.Ref) f.get(c)).set((Concept) derefRef(value));
      c.change(); ++changes;
    } else {
      Object old = f.get(c);
      if (neq(value, old)) {
        f.set(c, value);
        c.change(); ++changes;
      }
    }
  }
  return changes;
} catch (Exception __e) { throw rethrow(__e); } }
static long toM(long l) {
  return (l+1024*1024-1)/(1024*1024);
}

static String toM(long l, int digits) {
  return formatDouble(toM_double(l), digits);
}
static void clearConcepts() {
  mainConcepts.clearConcepts();
}

static void clearConcepts(Concepts concepts) {
  concepts.clearConcepts();
}
static SortedMap synchroTreeMap() {
  return Collections.synchronizedSortedMap(new TreeMap());
}

static List map(Iterable l, Object f) {
  return map(f, l);
}

static List map(Object f, Iterable l) {
  List x = new ArrayList();
  for (Object o : unnull(l))
    x.add(callF(f, o));
  return x;
}

static List map(Object f, Object[] l) { return map(f, asList(l)); }
static List map(Object[] l, Object f) { return map(f, l); }

static List map(Object f, Map map) {
  return map(map, f);
}

static List map(Map map, Object f) {
  List x = new ArrayList();
  for (Object _e : map.entrySet()) {
    Map.Entry e = (Map.Entry) _e;
    x.add(callF(f, e.getKey(), e.getValue()));
  }
  return x;
}
static boolean equals(Object a, Object b) {
  return a == null ? b == null : a.equals(b);
}
static boolean hasType(Collection c, Class type) {
  for (Object x : c)
    if (isInstanceX(type, x))
      return true;
  return false;
}
static void cleanKillVM() {
  ping();
  cleanKillVM_noSleep();
  sleep();
}

static void cleanKillVM_noSleep() {
  call(getJavaX(), "cleanKill");
}
static Object rpc(String botName, String method, Object... args) {
  return unstructure_debug(matchOK2OrFail(
    sendToLocalBot(botName, rpc_makeCall(method, args))));
}

static Object rpc(DialogIO bot, String method, Object... args) {
  return unstructure_debug(matchOK2OrFail(
    bot.ask(rpc_makeCall(method, args))));
}

static String rpc_makeCall(String method, Object... args) {
  if (empty(args))
    return "call " + method;
  return format("call *", concatLists((List) ll(method), asList(args)));
}
static <A> List<A> filterByDynamicType(Collection<A> c, String type) {
  List<A> l = new ArrayList();
  for (A x : c)
    if (eq(dynamicClassName(x), type))
      l.add(x);
  return l;
}
static long waitForBotStartUp_timeoutSeconds = 60;

// returns address or fails
static String waitForBotStartUp(String botName) {
  for (int i = 0; i < waitForBotStartUp_timeoutSeconds; i++) {
    sleepSeconds(i == 0 ? 0 : 1);
    String addr = getBotAddress(botName);
    if (addr != null)
      return addr;
  }
  throw fail("Bot not found: " + quote(botName));
}
static <A> A firstOfType(Collection c, Class<A> type) {
  for (Object x : c)
    if (isInstanceX(type, x))
      return (A) x;
  return null;
}
static <A, B> Map<A, B> cloneMap(Map<A, B> map) {
  if (map == null) return litmap();
  // assume mutex is equal to collection
  synchronized(map) {
    return map instanceof TreeMap ? new TreeMap(map)
      : map instanceof LinkedHashMap ? new LinkedHashMap(map)
      : new HashMap(map);
  }
}
static Concept cnew(String name, Object... values) {
  Class<? extends Concept> cc = findClass(name);
  Concept c = cc != null ? nuObject(cc) : new Concept(name);
  csetAll(c, values);
  return c;
}

static Concept cnew(Concepts concepts, String name, Object... values) {
  Class<? extends Concept> cc = findClass(name);
  concepts_unlisted.set(true);
  Concept c;
  try {
    c = cc != null ? nuObject(cc) : new Concept(name);
  } finally {
    concepts_unlisted.set(null);
  }
  concepts.register(c);
  csetAll(c, values);
  return c;
}

static <A extends Concept> A cnew(Class<A> cc, Object... values) {
  A c = nuObject(cc);
  csetAll(c, values);
  return c;
}

static <A extends Concept> A cnew(Concepts concepts, Class<A> cc, Object... values) {
  concepts_unlisted.set(true);
  A c;
  try {
    c = nuObject(cc);
  } finally {
    concepts_unlisted.set(null);
  }
  concepts.register(c);
  csetAll(c, values);
  return c;
}

static <A> void addAll(Collection<A> c, Collection<A> b) {
  if (c != null && b != null) c.addAll(b);
}

static <A> void addAll(Collection<A> c, A... b) {
  if (c != null) c.addAll(Arrays.asList(b));
}
static boolean bareDBMode_on;

static void bareDBMode() {
  bareDBMode(null); // default autoSaveInterval
}

static void bareDBMode(Integer autoSaveInterval) {
  bareDBMode_on = true;
  conceptsAndBot(autoSaveInterval);
}
static boolean warn_on = true;

static void warn(String s) {
  if (warn_on)
    print("Warning: " + s);
}

static void warn(String s, List<String> warnings) {
  warn(s);
  if (warnings != null)
    warnings.add(s);
}
static Str concept(String name) {
  for (Str s : list(Str.class))
    if (eqic(s.name, name) || containsIgnoreCase(s.otherNames, name))
      return s;
  return new Str(name);
}
static File getProgramFile(String progID, String fileName) {
  if (new File(fileName).isAbsolute())
    return new File(fileName);
  return new File(getProgramDir(progID), fileName);
}

static File getProgramFile(String fileName) {
  return getProgramFile(getProgramID(), fileName);
}

static int hours() {
  return hours(Calendar.getInstance());
}

static int hours(Calendar c) {
  return c.get(Calendar.HOUR_OF_DAY);
}
static Lock dbLock() {
  return mainConcepts.lock;
}
static <A, B> void put(Map<A, B> map, A a, B b) {
  if (map != null) map.put(a, b);
}
static <A extends Concept> A findBackRef(Concept c, Class<A> type) {
  for (Concept.Ref r : c.backRefs)
    if (instanceOf(r.concept(), type))
      return (A) r.concept();
  return null;
}

static <A extends Concept> A findBackRef(Class<A> type, Concept c) {
  return findBackRef(c, type);
}
static <A> List<A> removeDyn(List<A> l, A a) {
  if (l == null) return null;
  l.remove(a);
  return empty(l) ? null : l;
}
static String formatInt(int i, int digits) {
  return padLeft(str(i), '0', digits);
}

static JComponent unwrap(JComponent c) {
  return c instanceof JScrollPane ? unwrapScrollPane((JScrollPane) c) : c;
}
static <A> List<A> filterByType(Collection c, Class<A> type) {
  List<A> l = new ArrayList();
  for (Object x : c)
    if (isInstanceX(type, x))
      l.add((A) x);
  return l;
}

static <A> List<A> filterByType(Object[] c, Class<A> type) {
  return filterByType(asList(c), type);
}

static int done_minPrint = 10;

static long done(long startTime, String desc) {
  long time = now()-startTime;
  if (time >= done_minPrint)
    print(desc + " [" + time + " ms]");
  return time;
}

static long done(String desc, long startTime) {
  return done(startTime, desc);
}

static long done(long startTime) {
  return done(startTime, "");
}
static boolean hasConcept(Class<? extends Concept> c, Object... params) {
  return findConceptWhere(c, params) != null;
}
static String ymd() {
  return year() + formatInt(month(), 2) + formatInt(dayOfMonth(), 2);
}
static <A extends Concept> int countConcepts(Class<A> c, Object... params) {
  return mainConcepts.countConcepts(c, params);
}

static int countConcepts() {
  return mainConcepts.countConcepts();
}

static int countConcepts(String className) {
  return mainConcepts.countConcepts(className);
}

static <A extends Concept> int countConcepts(Concepts concepts, String className) {
  return concepts.countConcepts(className);
}


static int year() {
  return Calendar.getInstance().get(Calendar.YEAR);
}
static Object unstructure_debug(String s) {
  try {
    return unstructure(s);
  } catch (Throwable _e) {
    print("Was unstructuring: " + s);
  
throw rethrow(_e); }
}
static boolean instanceOf(Object o, String className) {
  if (o == null) return false;
  String c = o.getClass().getName();
  return eq(c, className) || eq(c, "main$" + className);
}

static boolean instanceOf(Object o, Class c) {
  if (c == null) return false;
  return c.isInstance(o);
}
static int month() {
  return Calendar.getInstance().get(Calendar.MONTH)+1;
}
static String getBotAddress(String bot) {
  List<ScannedBot> l = fullBotScan(bot);
  return empty(l) ? null : first(l).address;
}
static String padLeft(String s, char c, int n) {
  return rep(c, n-l(s)) + s;
}

// default to space
static String padLeft(String s, int n) {
  return padLeft(s, ' ', n);
}
static String dbProgramID() {
  return getDBProgramID();
}
static String matchOK2OrFail(String s) {
  Matches m = new Matches();
  if (swic(s, "ok "))
    return substring(s, 3);
  else if (eqic(s, "ok"))
    return "ok";
  else
    throw fail(s);
}
static String dynamicClassName(Object o) {
  if (o instanceof DynamicObject && ((DynamicObject) o).className != null)
    return "main$" + ((DynamicObject) o).className;
  return className(o);
}
static Object derefRef(Object o) {
  if (o instanceof Concept.Ref) o = ((Concept.Ref) o).get();
  return o;
}

static boolean isInstance(Class type, Object arg) {
  return type.isInstance(arg);
}
static int dayOfMonth() {
  return days();
}
static String formatDouble(double d, int digits) {
  String format = "0." + rep(digits, '#');
  return new java.text.DecimalFormat(format, new java.text.DecimalFormatSymbols(Locale.ENGLISH)).format(d);
}

// r may return false to cancel timer
static TimerTask smartTimerTask(final Object r, final java.util.Timer timer, final int delay) {
  return new TimerTask() {
    long lastRun;
    
    public void run() {
      if (!licensed())
        timer.cancel();
      else {
        lastRun = fixTimestamp(lastRun);
        long now = now();
        if (now >= lastRun + delay*0.9) {
          lastRun = now;
          if (eq(false, pcallF(r)))
            timer.cancel();
        }
      }
    }
  };
}
static String loadTextFilePossiblyGZipped(String fileName) {
  return loadTextFilePossiblyGZipped(fileName, null);
}
  
static String loadTextFilePossiblyGZipped(String fileName, String defaultContents) {
  File gz = new File(fileName + ".gz");
  return gz.exists() ? loadGZTextFile(gz) : loadTextFile(fileName, defaultContents);
}

static String loadTextFilePossiblyGZipped(File fileName) {
  return loadTextFilePossiblyGZipped(fileName, null);
}

static String loadTextFilePossiblyGZipped(File fileName, String defaultContents) {
  return loadTextFilePossiblyGZipped(fileName.getPath(), defaultContents);
}

static JComponent unwrapScrollPane(JScrollPane sp) {
  return sp == null ? null : (JComponent) sp.getViewport().getView();
}
static double toM_double(long l) {
  return l/(1024*1024.0);
}
static File getProgramDir() {
  return programDir();
}

static File getProgramDir(String snippetID) {
  return programDir(snippetID);
}
static <A, B> void mapPut2(Map<A, B> map, A key, B value) {
  if (map != null && key != null)
    if (value != null) map.put(key, value);
    else map.remove(key);
}
  static <A> List<A> concatLists(Collection<A>... lists) {
    List<A> l = new ArrayList();
    for (Collection<A> list : lists)
      if (list != null)
        l.addAll(list);
    return l;
  }

  static <A> List<A> concatLists(Collection<List<A>> lists) {
    List<A> l = new ArrayList();
    for (List<A> list : lists)
      if (list != null)
        l.addAll(list);
    return l;
  }

static File tempFileFor(File f) {
  return new File(f.getPath() + "_temp");
}


static int days() {
  return Calendar.getInstance().get(Calendar.DAY_OF_MONTH);
}
static class ScannedBot {
  String helloString;
  String address;
  
  ScannedBot(String helloString, String address) {
  this.address = address;
  this.helloString = helloString;}
  ScannedBot() {}
}

static List<ScannedBot> fullBotScan() {
  return fullBotScan("");
}

static List<ScannedBot> fullBotScan(String searchPattern) {
  List<ScannedBot> bots = new ArrayList();
  for (ProgramScan.Program p : quickBotScan()) {
    String botName = firstPartOfHelloString(p.helloString);
    boolean isVM = startsWithIgnoreCase(p.helloString, "This is a JavaX VM.");
    boolean shouldRecurse = swic(botName, "Multi-Port") || isVM;
    
    if (swic(botName, searchPattern)) bots.add(new ScannedBot(botName, "" + p.port));

    if (shouldRecurse) try {
      Map<Number, String> subBots = (Map) unstructure(sendToLocalBotQuietly(p.port, "list bots"));
      for (Number vport : subBots.keySet()) {
        botName = subBots.get(vport);
        if (swic(botName, searchPattern)) 
          bots.add(new ScannedBot(botName, p.port + "/" + vport));
      }
    } catch (Exception e) { e.printStackTrace(); }
  }
  return bots;
}
static boolean swic(String a, String b) {
  return startsWithIgnoreCase(a, b);
}


  static boolean swic(String a, String b, Matches m) {
    if (!swic(a, b)) return false;
    m.m = new String[] {substring(a, l(b))};
    return true;
  }

static long fixTimestamp(long timestamp) {
  return timestamp > now() ? 0 : timestamp;
}
static String loadGZTextFile(File file) { try {
  if (!file.isFile()) return null;
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  InputStream fis = new FileInputStream(file);
  GZIPInputStream gis = new GZIPInputStream(fis);
  try {
    byte[] buffer = new byte[1024];
    int len;
    while((len = gis.read(buffer)) != -1){
        baos.write(buffer, 0, len);
    }
  } finally {
    fis.close();
  }
  baos.close();
  return fromUtf8(baos.toByteArray()); // TODO: use a Reader
} catch (Exception __e) { throw rethrow(__e); } }


static String fromUtf8(byte[] bytes) { try {
  return new String(bytes, "UTF-8");
} catch (Exception __e) { throw rethrow(__e); } }


static class SynchronizedSet<E> extends SynchronizedCollection<E> implements Set<E> {
  SynchronizedSet() {} // for persistence
  SynchronizedSet(Set<E> set) { super(set); }
  SynchronizedSet(Set<E> set, Object mutex) { super(set, mutex); }
  
  public boolean equals(Object o) {
      if (this == o)
          return true;
      synchronized (this) {return c.equals(o);}
  }
  
  public int hashCode() {
      synchronized (this) {return c.hashCode();}
  }
}

static class CollectionInConcept<E> implements Collection<E> {
  Collection<E> c;  // Backing Collection
  Concept cc;

  CollectionInConcept() {} // for persistence
  CollectionInConcept(Collection<E> c, Concept cc) {
  this.cc = cc;
  this.c = c;}

  public int size() {
      synchronized (this) {return c.size();}
  }
  public boolean isEmpty() {
      synchronized (this) {return c.isEmpty();}
  }
  public boolean contains(Object o) {
      synchronized (this) {return c.contains(o);}
  }
  public Object[] toArray() {
      synchronized (this) {return c.toArray();}
  }
  public <T> T[] toArray(T[] a) {
      synchronized (this) {return c.toArray(a);}
  }

  public Iterator<E> iterator() {
      return c.iterator(); // caller should not use Iterator.remove()
  }

  public boolean add(E e) {
      synchronized (this) {if (!c.add(e)) return false; } change(); return true;
  }
  public boolean remove(Object o) {
      synchronized (this) {if (!c.remove(o)) return false;} change(); return true;
  }

  public boolean containsAll(Collection<?> coll) {
      synchronized (this) {return c.containsAll(coll);}
  }
  public boolean addAll(Collection<? extends E> coll) {
      synchronized (this) {if (!c.addAll(coll)) return false;} change(); return true;
  }
  public boolean removeAll(Collection<?> coll) {
      synchronized (this) {if (!c.removeAll(coll)) return false;} change(); return true;
  }
  public boolean retainAll(Collection<?> coll) {
      synchronized (this) {if (!c.retainAll(coll)) return false;} change(); return true;
  }
  public void clear() {
      synchronized (this) {c.clear();} change();
  }
  public String toString() {
      synchronized (this) {return c.toString();}
  }
  
  /*public void forEach(Consumer<? super E> consumer) {
      synchronized (this) {c.forEach(consumer);}
  }*/
 
  /*public boolean removeIf(Predicate<? super E> filter) {
      synchronized (this) {return c.removeIf(filter);}
  }*/
  @Override
  public Spliterator<E> spliterator() {
      return c.spliterator(); // Must be manually synched by user!
  }
  
  /*public Stream<E> stream() {
      return c.stream(); // Must be manually synched by user!
  }*/
  
  /*public Stream<E> parallelStream() {
      return c.parallelStream(); // Must be manually synched by user!
  }*/
  
  void change() { if (cc != null) cc.change(); }
  
  Collection<E> unwrap() { return c; }
}

static class SynchronizedCollection<E> implements Collection<E> {
  Collection<E> c;  // Backing Collection
  Object mutex;     // Object on which to synchronize

  SynchronizedCollection() {} // for persistence
  SynchronizedCollection(Collection<E> c) {
      this.c = Objects.requireNonNull(c);
      mutex = this;
  }

  SynchronizedCollection(Collection<E> c, Object mutex) {
      this.c = Objects.requireNonNull(c);
      this.mutex = Objects.requireNonNull(mutex);
  }

  public int size() {
      synchronized (mutex) {return c.size();}
  }
  public boolean isEmpty() {
      synchronized (mutex) {return c.isEmpty();}
  }
  public boolean contains(Object o) {
      synchronized (mutex) {return c.contains(o);}
  }
  public Object[] toArray() {
      synchronized (mutex) {return c.toArray();}
  }
  public <T> T[] toArray(T[] a) {
      synchronized (mutex) {return c.toArray(a);}
  }

  public Iterator<E> iterator() {
      return c.iterator(); // Must be manually synched by user!
  }

  public boolean add(E e) {
      synchronized (mutex) {return c.add(e);}
  }
  public boolean remove(Object o) {
      synchronized (mutex) {return c.remove(o);}
  }

  public boolean containsAll(Collection<?> coll) {
      synchronized (mutex) {return c.containsAll(coll);}
  }
  public boolean addAll(Collection<? extends E> coll) {
      synchronized (mutex) {return c.addAll(coll);}
  }
  public boolean removeAll(Collection<?> coll) {
      synchronized (mutex) {return c.removeAll(coll);}
  }
  public boolean retainAll(Collection<?> coll) {
      synchronized (mutex) {return c.retainAll(coll);}
  }
  public void clear() {
      synchronized (mutex) {c.clear();}
  }
  public String toString() {
      synchronized (mutex) {return c.toString();}
  }
  
  /*public void forEach(Consumer<? super E> consumer) {
      synchronized (mutex) {c.forEach(consumer);}
  }*/
 
  /*public boolean removeIf(Predicate<? super E> filter) {
      synchronized (mutex) {return c.removeIf(filter);}
  }*/
  @Override
  public Spliterator<E> spliterator() {
      return c.spliterator(); // Must be manually synched by user!
  }
  
  /*public Stream<E> stream() {
      return c.stream(); // Must be manually synched by user!
  }*/
  
  /*public Stream<E> parallelStream() {
      return c.parallelStream(); // Must be manually synched by user!
  }*/
}

static class Str extends Concept {
  String name;
  List<String> otherNames = new ArrayList();
  
  Str() {}
  Str(String name) {
  this.name = name;}
  
  public String toString() { return name; }
}

// union-type entry
static class E {
  String q, a, state;
  boolean test; // not used anymore probably
  String comment; // not checked for comparison
  
  E() {}
  E(String text, String type) {
    if (eq(type, "q")) q = text;
    else if (eq(type, "a")) a = text;
    else state = text;
  }
  
  // does not compare the "test" bit
  boolean eqTo(E y) {
    E x = this;
    return eq/*ic*/(x.q, y.q) && eq/*ic*/(x.a, y.a) && eq/*ic*/(x.state, y.state);
  }
  
  public boolean equals(Object o) {
    return o instanceof E && eqTo((E) o);
  }
  
  public int hashCode() {
    return stdHash(this, "q", "a", "state");
  }
  
  static E state(String state) {
    if (state == null) return null; E e = new E(); e.state = state; return e;
  }
  
  static E q(String q) {
    if (q == null) return null; E e = new E(); e.q = q; return e;
  }
  
  static E a(String a) {
    if (a == null) return null; E e = new E(); e.a = a; return e;
  }
  
  public String toString() {
    return unparsePoemLine(this);
  }
  
  boolean q() { return q != null; }
  boolean a() { return a != null; }
  boolean state() { return state != null; }
  String type() { return q() ? "q" : a() ? "a" : "state"; }
  String text() { return q() ? q : a() ? a : state; }
}

static String unparsePoemLine(E e) {
  return trim(unparsePoem(litlist(e)));
}
static int stdHash(Object a, String... fields) {
  if (a == null) return 0;
  int hash = getClassName(a).hashCode();
  for (String field : fields)
    hash = hash*2+hashCode(getOpt(a, field));
  return hash;
}
static <A> boolean containsAll(Collection<? extends A> a, Collection<A> b) {
  for (A o : b)
    if (!a.contains(o))
      return false;
  return true;
}


static int hashCode(Object a) {
  return a == null ? 0 : a.hashCode();
}
static String unparsePoem(List<E> poem) {
  List<String> l = new ArrayList();
  for (E e : poem) {
    String s;
    if (e.q != null)
      s = "Usr: " + trim(e.q);
    else if (e.a != null)
      s = "Bot: " + trim(e.a);
    else if (e.state != null)
      s = "[" + trim(e.state) + "]";
    else
      s = "?";
    if (e.comment != null)
      s += " // " + e.comment;
    l.add(s);
  }
  return joinLines(l);
}


static String joinLines(List<String> lines) {
  return fromLines(lines);
}

static String joinLines(String glue, String text) {
  return join(glue, toLines(text));
}


// usually L<S>
static String fromLines(Collection lines) {
  StringBuilder buf = new StringBuilder();
  if (lines != null)
    for (Object line : lines)
      buf.append(str(line)).append('\n');
  return buf.toString();
}

static String fromLines(String... lines) {
  return fromLines(asList(lines));
}
static List<String> toLines(File f) {
  return toLines(loadTextFile(f));
}

  public static List<String> toLines(String s) {
    List<String> lines = new ArrayList<String>();
    if (s == null) return lines;
    int start = 0;
    while (true) {
      int i = toLines_nextLineBreak(s, start);
      if (i < 0) {
        if (s.length() > start) lines.add(s.substring(start));
        break;
      }

      lines.add(s.substring(start, i));
      if (s.charAt(i) == '\r' && i+1 < s.length() && s.charAt(i+1) == '\n')
        i += 2;
      else
        ++i;

      start = i;
    }
    return lines;
  }

  private static int toLines_nextLineBreak(String s, int start) {
    for (int i = start; i < s.length(); i++) {
      char c = s.charAt(i);
      if (c == '\r' || c == '\n')
        return i;
    }
    return -1;
  }

}