import java.util.*;
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.io.*;
import java.net.*;
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 javax.swing.undo.UndoManager;
import javax.net.ssl.*;
import java.security.SecureRandom;
import java.security.cert.X509Certificate;
import javax.imageio.metadata.*;
import javax.imageio.stream.*;
import java.text.SimpleDateFormat;
import java.text.NumberFormat;
import net.coobird.thumbnailator.Thumbnailator;
import java.awt.datatransfer.*;
import java.awt.dnd.*;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.DataFlavor;
import javax.swing.border.*;
import java.awt.datatransfer.StringSelection;
import javax.swing.event.AncestorListener;
import javax.swing.event.AncestorEvent;
import javax.swing.Timer;
import java.nio.file.Files;
import java.nio.file.Path;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.text.*;

class main {

static class JavaEval extends DynPrintLog {
  String expression;
  boolean realEval = true;
  transient boolean calculating;
  transient Object value;
  transient JTextArea taInput;
  transient Throwable error;
  transient JPanel babiesPanel;

  void start() { super.start();
    loadImage2("#1101447");
    makeDependent_postProcess = new Runnable() {  public void run() { try {  updateBabySymbols(); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "updateBabySymbols();"; }};
    dm_vmBus_onMessage("gcDone", new Runnable() {  public void run() { try {  updateBabySymbols(); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "updateBabySymbols();"; }});
    doEvery(300.0, new Runnable() {  public void run() { try {  updateBabySymbols(); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "updateBabySymbols();"; }}); // just to be sure to updat eit sometimes
  }

  JComponent visualize() {
    return centerAndSouthWithMargins(
      jvsplit( 
        centerAndEastWithMarginInbetween(
          onCtrlEnter(taInput = jEnableUndoRedo(typeWriterTextArea(expression)), runnableThread(new Runnable() {  public void run() { try {  evalIt(); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "evalIt();"; }})),
          vstackWithSpacing(
            jbutton("Fresh", runnableThread(new Runnable() {  public void run() { try {  refresh(); evalIt() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "refresh(); evalIt()"; }})),
            jbutton("Eval", runnableThread(new Runnable() {  public void run() { try {  evalIt(); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "evalIt();"; }})),
            withToolTip("Don't interpret", dm_fieldCheckBox("Real", "realEval")))),
        super.visualize()),
        jScrollWithoutBorder(babiesPanel = leftAlignedLine()));
  }
  
  void refresh() {
    call(dm_transpiler(), "refresh");
    loadFunctions_clearCache();
    print("Refreshed translator.");
  }
  
  void evalIt() {
    if (calculating) return;
    calculating = true;
     AutoCloseable __0 = afterwards(new Runnable() {  public void run() { try {  calculating = false ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "calculating = false"; }}); try {
    dm_javaEvalModule_doIt(gtt(taInput), realEval);
  } finally { _close(__0); }}
  
  void updateBabySymbols() {  AutoCloseable __1 = enter(); try {
    dm_q().add(new Runnable() {  public void run() { try { 
      final int n = l(dependentClasses());
      final BufferedImage img = scaleImageToWidth(loadImage2("#1101447"), 24);
      { swing(new Runnable() {  public void run() { try { 
        removeAllComponents(babiesPanel);
        for (int _repeat_2 = 0; _repeat_2 < n; _repeat_2++)  {
          babiesPanel.add(toolTip("You have made one cute little subprocess!", jimage(img)));
        }
        revalidate(babiesPanel);
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "removeAllComponents(babiesPanel);\r\n        repeat n {\r\n          babiesPanel...."; }}); }
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "final int n = l(dependentClasses());\r\n      final BufferedImage img = scaleIm..."; }});
  } finally { _close(__1); }}
}
static BufferedImage loadImage2(String snippetIDOrURL) {
  return loadBufferedImage(snippetIDOrURL);
}

static BufferedImage loadImage2(File file) {
  return loadBufferedImage(file);
}
static RuntimeException rethrow(Throwable t) {
  
  if (t instanceof Error)
    _handleError((Error) t);
  
  throw t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
}
static <A> AutoCloseable dm_vmBus_onMessage(final String msg, final VF1<A> onMessage) {
  return dm_ownResource(vmBus_onMessage(msg, onMessage));
}


static <A, B> AutoCloseable dm_vmBus_onMessage(String msg, final VF2<A, B> onMessage) {
  return dm_ownResource(vmBus_onMessage(msg, onMessage));
}




static AutoCloseable dm_vmBus_onMessage(String msg, Runnable onMessage) {
  return dm_ownResource(vmBus_onMessage(msg, onMessage));
}
// firstDelay = delay
static FixedRateTimer doEvery(long delay, final Object r) {
  return doEvery(delay, delay, r);
}

static FixedRateTimer doEvery(long delay, long firstDelay, final Object r) {
  FixedRateTimer timer = new FixedRateTimer(shorten(programID() + ": " + r, 80));
  timer.scheduleAtFixedRate(smartTimerTask(r, timer, toInt(delay)), toInt(firstDelay), toInt(delay));
  return timer;
}

// reversed argument order for fun
static FixedRateTimer doEvery(double initialSeconds, double delaySeconds, final Object r) {
  return doEvery(toMS(delaySeconds), toMS(initialSeconds), r);
}

static FixedRateTimer doEvery(double delaySeconds, final Object r) {
  return doEvery(toMS(delaySeconds), r);
}

static JPanel centerAndSouthWithMargins(Component c, Component s) {
  return applyDefaultMargin(centerAndSouth(c, withTopMargin(s)));
}
static JSplitPane jvsplit(Component n, Component s) {
  return jvsplit(n, s, 0.5);
}

static JSplitPane jvsplit(Component n, Component s, double splitPoint, int delay) {
  // delay now ignored
  return jvsplit(n, s, splitPoint);
}

static JSplitPane jvsplit(Component n, Component s, double splitPoint) {
  return setSplitPaneOnFirstShowing(
    swingNu(JSplitPane.class, JSplitPane.VERTICAL_SPLIT, wrap(n), wrap(s)),
    splitPoint);
}
static JPanel centerAndEastWithMarginInbetween(Component c, final Component e) {
  return centerAndEast(c, withLeftMargin(e));
}
static <A extends JComponent> A onCtrlEnter(final A c, final Object action) {
  addKeyListener(c, ctrlEnterKeyListener(action));
  return c;
}


static <A extends JTextComponent> A jEnableUndoRedo(A textcomp) {
  return jenableUndoRedo(textcomp);
}
static JTextArea typeWriterTextArea() {
  return newTypeWriterTextArea();
}

static JTextArea typeWriterTextArea(String text) {
  return newTypeWriterTextArea(text);
}
static Runnable runnableThread(final Runnable r) {
  return new Runnable() {  public void run() { try {  startThread(r) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "startThread(r)"; }};
}
static int vstackWithSpacing_default = 10;

static JPanel vstackWithSpacing(final List parts) {
  return vstackWithSpacing(parts, vstackWithSpacing_default);
}

static JPanel vstackWithSpacing(final List parts, final int spacing) {
  return swing(new F0<JPanel>() { JPanel get() { try { 
    JPanel panel = new JPanel(new GridBagLayout());
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.weightx = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.gridwidth = GridBagConstraints.REMAINDER;
    gbc.insets = new Insets(spacing/2, 0, spacing/2, 0); // well...
    smartAddWithLayout(panel, gbc, toObjectArray(parts));
    //gbc = (GridBagConstraints) gbc.clone();
    //gbc.fill = GridBagConstraints.BOTH;
    gbc.weighty = 1;
    gbc.insets = new Insets(0, 0, 0, 0);
    panel.add(jrigid(), gbc);
    return panel;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JPanel panel = new JPanel(new GridBagLayout);\r\n    new GridBagConstraints gbc..."; }});
}

static JPanel vstackWithSpacing(Component... parts) {
  return vstackWithSpacing(asList(parts), vstackWithSpacing_default);
}


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, O action) {
  ret setButtonImage(img, jbutton("", action));
}*/

static JButton jbutton(Action action) {
  return swingNu(JButton.class, action);
}
static <A extends JComponent> A withToolTip(A c, final Object toolTip) {
  return setToolTipText(c, toolTip);
}



static <A extends JComponent> A withToolTip(Object toolTip, A c) {
  return setToolTipText(toolTip, c);
}
static JCheckBox dm_fieldCheckBox(String field) {
  return dm_fieldCheckBox(humanizeFormLabel(field), field);
}

static JCheckBox dm_fieldCheckBox(String text, String field) {
  // magic parameter swap :)
  if (isIdentifier(text) && !isIdentifier(field)) { String temp = field; field = text; text = temp; }
  return jLiveValueCheckBox(text, dm_fieldLiveValue(field));
}
static JScrollPane jScrollWithoutBorder(final Component c) {
  return setMargin(0, jscroll(c));
}
static JPanel leftAlignedLine(Component... components) {
  return jline(components);
}



static <A extends Component> JPanel leftAlignedLine(List<A> components) {
  return jline(components);
}
static <A> A call(Object o) {
  return (A) callF(o);
}

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

static <A> A call(Object o, String method, Object... args) {
  return (A) call_cached(o, method, args);
}
static Object dm_transpiler() {
  return dm_getModule(dm_requireModule("#1017065/Transpiler"));
}
static void loadFunctions_clearCache() {
  call(getOptMC("loadFunctions_cache"), "clear");
}


static volatile StringBuffer local_log = new StringBuffer(); // not redirected

static volatile Appendable 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<Object> print_byThread; // special handling by thread - prefers F1<S, Bool>
static volatile Object print_allThreads;

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

static <A> A print(String s, A o) {
  print((endsWithLetterOrDigit(s) ? s + ": " : s) + o);
  return o;
}

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

static void print_noNewLine(String s) {
  
  Object f = print_byThread == null ? null : print_byThread.get();
  if (f == null) f = print_allThreads;
  if (f != null)
    // We do need the general callF machinery here as print_byThread is sometimes shared between modules
    if (isFalse(
      
        f instanceof F1 ? ((F1) f).get(s) :
      
      callF(f, s))) return;
  

  print_raw(s);
}

static void print_raw(String s) {
  s = fixNewLines(s);
  // TODO if (print_maxLineLength != 0)
  Appendable loc = local_log;
  Appendable 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 AutoCloseable afterwards(final Object r) {
  return tempAfterwards(r);
}
static void dm_javaEvalModule_doIt(String s) {
  dm_javaEvalModule_doIt(s, true);
}

static void dm_javaEvalModule_doIt(String s, boolean realEval) {
  DynModule dm = dm_current_mandatory();
  //set transpileRaw_verySilent;
  print("\nEvaluating: " + s);
  logQuotedWithDate("expressions.txt", s);
  dm.setField("expression" , s);
  try {
    String toEvaluate = s; // "time(func { " + s + "})";
    //O value = javaEval_dependent(toEvaluate);
    long time = sysNow();
    evalJava_myProgramID_main_time.set(null);
    vmBus_send("javaEval_starting", toEvaluate, realEval);
    Object value = realEval ? dm_javaEval(toEvaluate) : dm_javaEvalOrInterpret(toEvaluate);
    vmBus_send("javaEval_OK", toEvaluate, value);
    //dm.setField(value := null); // to prevent eq() call on data in next line
    dm.setFields("value", value, "error" , null);
    print();
    List<String> info = new ArrayList();
    info.add(or(evalJava_myProgramID_main_time.get(), elapsedMS(time)) + " ms");
    addAll(info, quickValueInformation_list(value));
    print("[" + joinWithComma(info) + "]");
    String string = str(value);
    try { logStructureWithDate("with-results.txt", ll(s, string)); } catch (Throwable __e) { _handleException(__e); }
    print(shorten(1000, string));
    if (value instanceof BufferedImage)
      showImage(((BufferedImage) value));
  } catch (Throwable e) {
    dm.setFields("value" , null, "error" , e);
    printStackTrace2(e);
    vmBus_send("javaEval_error", s, e);
  }
}
static String gtt(JTextComponent c) {
  return getTextTrim(c);
}

static String gtt(JComboBox cb) {
  return getTextTrim(cb);
}
static void _close(AutoCloseable c) {
  if (c != null) try {
    c.close();
  } catch (Throwable e) {
    // Some classes stupidly throw an exception on double-closing
    if (c instanceof javax.imageio.stream.ImageOutputStream)
      return;
    else throw rethrow(e);
  }
}
static Q dm_q() {
  return dm_current_mandatory().q();
}

static void dm_q(Runnable r) {
  dm_inQ(r);
}
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(short[] a) { return a == null ? 0 : a.length; }
static int l(long[] 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(double[] 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 == null ? 0
    : o instanceof String ? l((String) o)
    : o instanceof Map ? l((Map) o)
    : o instanceof Collection ? l((Collection) o)
    : o instanceof Object[] ? l((Object[]) o)
    : o instanceof boolean[] ? l((boolean[]) o)
    : o instanceof byte[] ? l((byte[]) o)
    : o instanceof char[] ? l((char[]) o)
    : o instanceof short[] ? l((short[]) o)
    : o instanceof int[] ? l((int[]) o)
    : o instanceof float[] ? l((float[]) o)
    : o instanceof double[] ? l((double[]) o)
    : o instanceof long[] ? l((long[]) o)
    : (Integer) call(o, "size");
}




static List<Class> dependentClasses() {
  return cleanUpAndGetWeakReferencesList(hotwire_classes);
}
static BufferedImage scaleImageToWidth(BufferedImage img, int newW) {
  return resizeImage(img, newW);
}

static BufferedImage scaleImageToWidth(int newW, BufferedImage img) {
  return scaleImageToWidth(img, newW);
}
static Object swing(Object f) {
  return swingAndWait(f);
}

static <A> A swing(F0<A> f) {
  return (A) swingAndWait(f);
}
static void removeAllComponents(final Container c) {
  if (c != null) { swing(new Runnable() {  public void run() { try { 
    c.removeAll();
    revalidate(c);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.removeAll();\r\n    revalidate(c);"; }}); }
}
static <A extends JComponent> A toolTip(A c, final Object toolTip) {
  return setToolTipText(c, toolTip);
}



static <A extends JComponent> A toolTip(Object toolTip, A c) {
  return setToolTipText(toolTip, c);
}
static JLabel jimage(Image img) {
  return jImageLabel(img);
}

static JLabel jimage(String imageID) {
  return jImageLabel(imageID);
}
static <A extends Component> A revalidate(final A c) {
  if (c == null || !c.isShowing()) return c;
  { swing(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.r..."; }}); }
  return c;
}

static void revalidate(RootPaneContainer c) { revalidate((Component) c); }
static void revalidate(JFrame f) { revalidate((Component) f); }
static void revalidate(JInternalFrame f) { revalidate((Component) f); }


static List<WeakReference<Class>> hotwire_classes = synchroList();

static Class<?> hotwireDependent(String src) {
  Class c = hotwire(src);
  makeDependent(c);
  return c;
}

static boolean loadBufferedImage_useImageCache = true;

static BufferedImage loadBufferedImage(String snippetIDOrURLOrFile) { try {
  if (snippetIDOrURLOrFile == null) return null;
  if (isURL(snippetIDOrURLOrFile))
    return imageIO_readURL(snippetIDOrURLOrFile);

  if (isAbsolutePath(snippetIDOrURLOrFile)) 
    return loadBufferedImage(new File(snippetIDOrURLOrFile));
  
  if (!isSnippetID(snippetIDOrURLOrFile))
  throw fail("Not a URL or snippet ID or file: " + snippetIDOrURLOrFile);
  String snippetID = "" + parseSnippetID(snippetIDOrURLOrFile);
  
  File dir = imageSnippetsCacheDir();
  if (loadBufferedImage_useImageCache) {
    dir.mkdirs();
    File file = new File(dir, snippetID + ".png");
    if (file.exists() && file.length() != 0)
      try {
        return ImageIO.read(file);
      } catch (Throwable e) {
        e.printStackTrace();
        // fall back to loading from sourceforge
      }
  }

  String imageURL = snippetImageURL_http(snippetID);
  print("Loading image: " + imageURL);
  BufferedImage image = imageIO_readURL(imageURL);

  if (loadBufferedImage_useImageCache) {
    File tempFile = new File(dir, snippetID + ".tmp." + System.currentTimeMillis());
    ImageIO.write(image, "png", tempFile);
    tempFile.renameTo(new File(dir, snippetID + ".png"));
    //Log.info("Cached image.");
  }

  //Log.info("Loaded image.");
  return image;
} catch (Exception __e) { throw rethrow(__e); } }

static BufferedImage loadBufferedImage(File file) { try {
  return file.isFile() ? ImageIO.read(file) : null;
} catch (Exception __e) { throw rethrow(__e); } }
static void _handleError(Error e) {
  call(javax(), "_handleError", e);
}
static AutoCloseable dm_ownResource(AutoCloseable resource) {
  dm_currentModuleMandatory().ownResource(resource);
  return resource;
}
static <A> AutoCloseable vmBus_onMessage(final String msg, final VF1<A> onMessage) {
  Map<String, Set> map = vm_busListenersByMessage_live();
  synchronized(map) {
    Set listeners = map.get(msg);
    if (listeners == null) map.put(msg, listeners = syncIdentityHashSet());
    // We're technically violating the one-synchronized-object-per-thread rule,
    // but it should be OK here.
    // TODO: remove empty sets from map
    return tempAdd(listeners, new VF2<String, Object>() { public void get(String _msg, Object arg) { try { 
      callF(onMessage, arg)
    ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "callF(onMessage, arg)"; }});
  }
}


static <A, B> AutoCloseable vmBus_onMessage(String msg, final VF2<A, B> onMessage) {
  return vmBus_onMessage(msg, new VF1<Object[]>() { public void get(Object[] o) { try { 
    callF(onMessage, first(o), second(o));
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "callF(onMessage, first(o), second(o));"; }});
}




static AutoCloseable vmBus_onMessage(String msg, Runnable onMessage) {
  return vmBus_onMessage(msg, runnableToVF1(onMessage));
}
static int shorten_default = 100;

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

static String shorten(String s, int max) {
  return shorten(s, max, "...");
}

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

static String shorten(int max, String s) { return shorten(s, max); }
static String programID() {
  return getProgramID();
}

static String programID(Object o) {
  return getProgramID(o);
}
// r may return false to cancel timer
static TimerTask smartTimerTask(Object r, java.util.Timer timer, long delay) {
  return new SmartTimerTask(r, timer, delay, _threadInfo());
}

static  class SmartTimerTask extends TimerTask {
  static String _fieldOrder = "r timer delay threadInfo lastRun";
  Object r;
  java.util.Timer timer;
  long delay;
  Object threadInfo;
  SmartTimerTask() {}
  SmartTimerTask(Object r, java.util.Timer timer, long delay, Object threadInfo) {
  this.threadInfo = threadInfo;
  this.delay = delay;
  this.timer = timer;
  this.r = r;}
  public String toString() { return "SmartTimerTask(" + r + ", " + timer + ", " + delay + ", " + threadInfo + ")"; }
  long lastRun;
  
  public void run() {
    if (!licensed())
      timer.cancel();
    else {
      _threadInheritInfo(threadInfo);
       AutoCloseable __1268 = tempActivity(r); try {
      lastRun = fixTimestamp(lastRun);
      long now = now();
      if (now >= lastRun + delay*0.9) {
        lastRun = now;
        if (eq(false, pcallF(r)))
          timer.cancel();
      }
    } finally { _close(__1268); }}
  }
}
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;
}
static long toMS(double seconds) {
  return (long) (seconds*1000);
}
static <A extends JComponent> A applyDefaultMargin(final A c) {
  if (c != null) { swing(new Runnable() {  public void run() { try { 
    c.setBorder(BorderFactory.createEmptyBorder(withMargin_defaultWidth, withMargin_defaultWidth, withMargin_defaultWidth, withMargin_defaultWidth));
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.setBorder(BorderFactory.createEmptyBorder(withMargin_defaultWidth, withMarg..."; }}); }
  return c;
}
static JPanel centerAndSouth(final Component c, final Component s) {
  return swing(new F0<JPanel>() { JPanel get() { try { 
    JPanel panel = new JPanel(new BorderLayout());
    panel.add(BorderLayout.CENTER, wrap(c));
    if (s != null) panel.add(BorderLayout.SOUTH, wrap(s));
    return panel;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JPanel panel = new JPanel(new BorderLayout);\r\n    panel.add(BorderLayout.CENT..."; }});
}
static int withTopMargin_defaultWidth = 6;

static JPanel withTopMargin(Component c) {
  return withTopMargin(withTopMargin_defaultWidth, c);
}

static JPanel withTopMargin(final int w, final Component c) {
  return swing(new F0<JPanel>() { JPanel get() { try { 
    JPanel p = new JPanel(new BorderLayout());
    p.setBorder(BorderFactory.createEmptyBorder(w, 0, 0, 0));
    p.add(c);
    return p;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JPanel p = new JPanel(new BorderLayout);\r\n    p.setBorder(BorderFactory.creat..."; }});
}
static JSplitPane setSplitPaneOnFirstShowing(final Component c, final double value) {
  final JSplitPane sp = first(childrenOfType(c, JSplitPane.class));
  if (sp != null)
    onFirstResize(sp, new Runnable() {  public void run() { try {  
      sp.setDividerLocation(value);
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "sp.setDividerLocation(value);"; }});
  return sp;
}
static <A> A swingNu(final Class<A> c, final Object... args) {
  return swingConstruct(c, args);
}
// c = Component or something implementing swing()
static Component wrap(Object swingable) {
  return _recordNewSwingComponent(wrap_2(swingable));
}

static Component wrap_2(Object swingable) {
  if (swingable == null) return null;
  Component c;
  if (swingable instanceof Component) c = (Component) swingable;
  
  else c = (Component) callOpt(swingable, "swing");
  if (c instanceof JTable || c instanceof JList
    || c instanceof JTextArea || c instanceof JEditorPane
    || c instanceof JTextPane || c instanceof JTree)
    return jscroll(c);
  return c == null ? jlabel(str(swingable)) : c;
}
static JPanel centerAndEast(final Component c, final Component e) {
  return (JPanel) swing(new F0<Object>() { Object get() { try { 
    JPanel panel = new JPanel(new BorderLayout());
    panel.add(BorderLayout.CENTER, wrap(c));
    panel.add(BorderLayout.EAST, wrap(e));
    return panel;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JPanel panel = new JPanel(new BorderLayout);\r\n    panel.add(BorderLayout.CENT..."; }});
}
static int withLeftMargin_defaultWidth = 6;

static JPanel withLeftMargin(Component c) {
  return withLeftMargin(withLeftMargin_defaultWidth, c);
}

static JPanel withLeftMargin(final int margin, final Component c) {
  return swing(new F0<JPanel>() { JPanel get() { try { 
    JPanel p = new JPanel(new BorderLayout());
    p.setBorder(BorderFactory.createEmptyBorder(0, margin, 0, 0));
    p.add(c);
    return p;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JPanel p = new JPanel(new BorderLayout);\r\n    p.setBorder(BorderFactory.creat..."; }});
}
static void addKeyListener(final Component c, final KeyListener l) {
  if (c != null) { swing(new Runnable() {  public void run() { try {  c.addKeyListener(l); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.addKeyListener(l);"; }}); }
}
static KeyListener ctrlEnterKeyListener(final Object action) {
  final Object info = _threadInfo();
  return new KeyAdapter() {
    public void keyReleased(KeyEvent ke) {
      if (ke.getKeyCode() == KeyEvent.VK_ENTER && ke.getModifiers() == KeyEvent.CTRL_MASK) {
        _threadInheritInfo(info);
        pcallF(action);
      }
    }
  };
}


static <A extends JTextComponent> A jenableUndoRedo(final A textcomp) {
  { swing(new Runnable() {  public void run() { try { 
    final UndoManager undo = new UndoManager();
    vm_generalWeakSet("Undo Managers").add(undo);
    textcomp.getDocument().addUndoableEditListener(new UndoableEditListener() {
      public void undoableEditHappened(UndoableEditEvent evt) {
        undo.addEdit(evt.getEdit());
      }
    });
    
    textcomp.getActionMap().put("Undo", abstractAction("Undo", new Runnable() {  public void run() { try { 
      if (undo.canUndo()) undo.undo()
    ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (undo.canUndo()) undo.undo()"; }}));
    textcomp.getActionMap().put("Redo", abstractAction("Redo", new Runnable() {  public void run() { try { 
      if (undo.canRedo()) undo.redo()
    ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (undo.canRedo()) undo.redo()"; }}));
    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Z"), "Undo");
    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Y"), "Redo");
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "final new UndoManager undo;\r\n    vm_generalWeakSet(\"Undo Managers\").add(undo)..."; }}); }
  return textcomp;
}
static JTextArea newTypeWriterTextArea() {
  return newTypeWriterTextArea("");
}

static JTextArea newTypeWriterTextArea(String text) {
  return setFont(jTextArea(text), typeWriterFont());
}
static Thread startThread(Object runnable) {
  return startThread(defaultThreadName(), runnable);
}

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

static Thread startThread(Thread t) {
  
  _registerThread(t);
  
  t.start();
  return t;
}
// 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 == null) return null;
    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() & java.lang.reflect.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 JPanel smartAddWithLayout(JPanel panel, Object layout, List parts) {
  for (Object o : parts)
    panel.add(wrapForSmartAdd(o), layout);
  return panel;
}

static JPanel smartAddWithLayout(JPanel panel, Object layout, Object... parts) {
  return smartAddWithLayout(panel, layout, asList(flattenArray2(parts)));
}

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

static Component jrigid() {
  return javax.swing.Box.createRigidArea(new Dimension(0, 0));
}
static <A> ArrayList<A> asList(A[] a) {
  return a == null ? new ArrayList<A>() : new ArrayList<A>(Arrays.asList(a));
}

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

static ArrayList<Float> asList(float[] a) {
  if (a == null) return null;
  ArrayList<Float> l = emptyList(a.length);
  for (float 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(Producer<A> p) {
  ArrayList l = new ArrayList();
  A a;
  if (p != null) while ((a = p.next()) != null)
    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 boolean newButton_autoToolTip = true;

// 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 { 
    String text2 = dropPrefix("[disabled] ", text);
    final JButton btn = new JButton(text2);
    if (l(text2) < l(text)) btn.setEnabled(false);
    if (newButton_autoToolTip) {
      btn.setToolTipText(btn.getText());
      //onChangeAndNow(btn, r { btn.setToolTipText(btn.getText()) });
    }
    // submitButtonOnEnter(btn); // test this first
    if (action != null)
      btn.addActionListener(actionListener(action, btn));
    return btn;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "S text2 = dropPrefix(\"[disabled] \", text);\r\n    final JButton btn = new JButt..."; }});
}
static <A extends JComponent> A setToolTipText(final A c, final Object toolTip) {
  if (c == null) return null;
  { swing(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;
}

static <A extends JComponent> A setToolTipText(Object toolTip, A c) {
  return setToolTipText(c, toolTip);
}
static Map<String, String> humanizeFormLabel_replacements = litmap("id" , "ID", "md5" , "MD5");

static String humanizeFormLabel(String s) {
  if (containsSpace(s)) return s;
  return firstToUpper(
    joinWithSpace(replaceElementsUsingMap(splitCamelCase(s), humanizeFormLabel_replacements)).replace("I D", "ID")
  );
}
static boolean isIdentifier(String s) {
  return isJavaIdentifier(s);
}
static JCheckBox jLiveValueCheckBox(String text, final SimpleLiveValue<Boolean> lv) {
  final JCheckBox cb = jCheckBox(text);
  bindCheckBoxToLiveValue(cb, lv);
  return cb;
}
static SimpleLiveValue dm_fieldLiveValue(String fieldName) {
  return dm_fieldLiveValue(dm_current_mandatory(), fieldName);
}

static SimpleLiveValue dm_fieldLiveValue(final DynModule module, final String fieldName) {
  Lock __36 = module.lock; lock(__36); try {
  Class type = getFieldType(module, fieldName);
  final SimpleLiveValue value = new SimpleLiveValue(type, get(module, fieldName));
  module.onChange(new Runnable() {  public void run() { try { 
    
    Object o = get(module, fieldName);
    
    value.set(o);
    
  ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "ifdef dm_fieldLiveValue_debug\r\n      print(\"dm_fieldLiveValue: setting \" + fi..."; }});
  value.onChange(new Runnable() {  public void run() { try { 
    
    module.setField(fieldName, value.get());
    
  ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "ifdef dm_fieldLiveValue_debug\r\n      print(\"dm_fieldLiveValue: setting 2 \" + ..."; }});
  return value;
} finally { unlock(__36); } }
static <A extends JComponent> A setMargin(final int w, final int h, final A a) {
  if (a != null) { swing(new Runnable() {  public void run() { try { 
    a.setBorder(BorderFactory.createEmptyBorder(h, w, h, w));
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "a.setBorder(BorderFactory.createEmptyBorder(h, w, h, w));"; }}); }
  return a;
}

static <A extends JComponent> A setMargin(int w, A a) {
  return setMargin(w, w, a);
}
static JScrollPane jscroll(final Component c) {
  return swing(new F0<JScrollPane>() { JScrollPane get() { try {  return new JScrollPane(c);  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret new JScrollPane(c);"; }});
}
static JPanel jline(final Component... components) {
  return swing(new F0<JPanel>() { JPanel get() { try {  return new LeftAlignedLine(components);  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret new LeftAlignedLine(components);"; }});
}

static <A extends Component> JPanel jline(List<A> components) {
  return jline(asArray(Component.class, components));
}
static Map<Class, ArrayList<Method>> callF_cache = newDangerousWeakHashMap();


  static <A> A callF(F0<A> f) {
    return f == null ? null : f.get();
  }



  static <A, B> B callF(F1<A, B> f, A a) {
    return f == null ? null : f.get(a);
  }



  static <A, B, C> C callF(F2<A, B, C> f, A a, B b) {
    return f == null ? null : f.get(a, b);
  }



  static <A> void callF(VF1<A> f, A a) {
    if (f != null) f.get(a);
  }


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 invokeMethod(methods.get(0), f, args);
  for (int i = 0; i < n; i++) {
    Method m = methods.get(i);
    if (call_checkArgs(m, args, false))
      return invokeMethod(m, 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 Object call_cached(Object o, String method, Object... args) { try {
  if (o == null) return null;
  
  if (o instanceof Class) {
    Class c = (Class) o;
    _MethodCache cache = callOpt_getCache(c);
    
    // TODO: (super-rare) case where method exists static and non-static
    // with different args
    
    Method me = cache.findMethod(method, args);
    if (me == null)
      throw fail("Method " + c.getName() + "." + method + "(" + joinWithComma(classNames(args)) + ") not found");
    if ((me.getModifiers() & Modifier.STATIC) == 0)
      throw fail("Method " + c.getName() + "." + method + "(" + joinWithComma(classNames(args)) + ") not static");
    return invokeMethod(me, null, args);
  } else {
    Class c = o.getClass();
    _MethodCache cache = callOpt_getCache(c);

    Method me = cache.findMethod(method, args);
    if (me == null)
      throw fail("Method " + c.getName() + "." + method + "(" + joinWithComma(classNames(args)) + ") not found");
    return invokeMethod(me, o, args);
  }
} catch (Exception __e) { throw rethrow(__e); } }
static Object dm_getModule(Object moduleOrID) {
  if (eq(moduleOrID, "")) return null;
  if (isStringOrIntOrLong(moduleOrID))
    return dm_callOS("getDynModuleByID", str(moduleOrID));
  return dm_resolveModule(moduleOrID);
}
// makes dynamic & static modules
static String dm_requireModule(String moduleLibID) {
  return dm_makeModule(moduleLibID);
}
static Object getOptMC(String field) {
  return getOpt(mc(), field);
}
static boolean endsWithLetterOrDigit(String s) {
  return s != null && s.length() > 0 && Character.isLetterOrDigit(s.charAt(s.length()-1));
}
static void ping_okInCleanUp() {
  if (ping_pauseAll  || ping_anyActions )
    ping_impl(true);
}
static boolean isFalse(Object o) {
  return eq(false, o);
}
static String fixNewLines(String s) {
  int i = indexOf(s, '\r');
  if (i < 0) return s;
  int l = s.length();
  StringBuilder out = new StringBuilder(l);
  out.append(s, 0, i);
  for (; i < l; i++) {
    char c = s.charAt(i);
    if (c != '\r')
      out.append(c);
    else {
      out.append('\n');
      if (i+1 < l && s.charAt(i+1) == '\n') ++i;
    }
  }
  return out.toString();
}
static void print_append(Appendable _buf, String s, int max) { try {
  synchronized(_buf) {
    _buf.append(s);
    if (!(_buf instanceof StringBuilder)) return;
    StringBuilder buf = (StringBuilder) ( _buf);
    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);
    }
  }
} catch (Exception __e) { throw rethrow(__e); } }
static AutoCloseable tempAfterwards(final Object r) {
  return new AutoCloseable() {
    public void close() {
      callF(r);
    }
  };
}
static DynModule dm_current_mandatory() {
  return assertNotNull("No module set!", dm_currentModule());
}
static void logQuotedWithDate(String s) {
  logQuotedWithTime(s);
}

static void logQuotedWithDate(String logFile, String s) {
  logQuotedWithTime(logFile, s);
}

static void logQuotedWithDate(File logFile, String s) {
  logQuotedWithTime(logFile, s);
}
static long sysNow() {
  ping();
  return System.nanoTime()/1000000;
}
static void vmBus_send(String msg, Object... args) {
  Object arg = empty(args) ? null
    : l(args) == 1 ? args[0]
    : args;
  pcallFAll(vm_busListeners_live(), msg, arg);
  pcallFAll(vm_busListenersByMessage_live().get(msg), msg, arg);
}

static void vmBus_send(String msg) {
  vmBus_send(msg, (Object) null);
}
static Object dm_javaEval(String expression) {
  return dm_evalJava_withModule(expression);
}
static Object dm_javaEvalOrInterpret(String code) {
  final Object module = dm_current_mandatory_generic();
  code = trim(code);
  if (canQuickEval(code)) return quickEval(code);
  Pair<String, List<String>> p = tok_parseFunctionCall(code);
  if (p != null) {
    makeAndCall_initChild.set(new F1<Class, AutoCloseable>() { AutoCloseable get(Class c) { try { 
      shareMyCreatorWith(c);
      InheritableThreadLocal<WeakReference> tl = getOpt(c, "dm_currentModule_generic");
      return tempSetTL(tl, weakRef(module));
     } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "shareMyCreatorWith(c);\r\n      InheritableThreadLocal<WeakReference> tl = getO..."; }});
    return callAndMake(p.a, toObjectArray(map("javaEvalOrInterpret",p.b)));
  }
  return dm_javaEval(code);
}
static <A> A or(A a, A b) {
  return a != null ? a : b;
}
static long elapsedMS(long time) {
  ping();
  return sysNow()-time;
}
static <A, B extends A> void addAll(Collection<A> c, Iterable<B> b) {
  if (c != null && b != null) for (A a : b) c.add(a);
}

static <A, B extends A> boolean addAll(Collection<A> c, Collection<B> b) {
  return c != null && b != null && c.addAll(b);
}

static <A, B extends A> boolean addAll(Collection<A> c, B... b) {
  return c != null && c.addAll(Arrays.asList(b));
}
static List<String> quickValueInformation_list(Object value) {
  List<String> info = new ArrayList();
  if (value instanceof Collection || value instanceof Map)
    info.add("l=" + l(value));
  else if (value instanceof String)
    addAll(info, "l=" + l(((String) value)), "lines=" + countLines(((String) value)));
  return info;
}
static String joinWithComma(Collection<String> c) {
  return join(", ", c);
}

static String joinWithComma(String... c) {
  return join(", ", c);
}


static String joinWithComma(Pair p) {
  return p == null ? "" : joinWithComma(str(p.a), str(p.b));
}

static String str(Object o) {
  return o == null ? "null" : o.toString();
}

static String str(char[] c) {
  return new String(c);
}
static <A> A logStructureWithDate(File logFile, A o) {
  logQuoted(logFile, now() + " " + structure(o));
  return o;
}

// quick version - log to file in program directory
static <A> A logStructureWithDate(String fileName, A o) {
  return logStructureWithDate(getProgramFile(fileName), o);
}
static <A> List<A> ll(A... a) {
  ArrayList l = new ArrayList(a.length);
  for (A x : a) l.add(x);
  return l;
}
static volatile PersistableThrowable _handleException_lastException;
static List _handleException_onException = synchroList(ll("printStackTrace2"));

static void _handleException(Throwable e) {
  _handleException_lastException = persistableThrowable(e);
  
  Throwable e2 = innerException(e);
  if (e2.getClass() == RuntimeException.class && eq(e2.getMessage(), "Thread cancelled.") || e2 instanceof InterruptedException)
    return;
    
  for (Object f : cloneList(_handleException_onException)) try {
    callF(f, e);
  } catch (Throwable e3) {
    printStackTrace2(e3); // not using pcall here - it could lead to endless loops
  }
}

static String showImage_defaultIcon = "#1004230"; // "#1004227";

static ImageSurface showImage(String snippetIDOrURL, String title) {
  return showImage(loadImage(snippetIDOrURL), title);
}

static ImageSurface showImage(String title, BufferedImage img) {
  return showImage(img, title);
}

static ImageSurface showImage(final BufferedImage img, final String title) {
  return (ImageSurface) swing(new F0<Object>() { Object get() { try { 
    ImageSurface is = showImage(img);
    getFrame(is).setTitle(title);
    return is;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ImageSurface is = showImage(img);\r\n    getFrame(is).setTitle(title);\r\n    ret..."; }});
}

static ImageSurface showImage(final BufferedImage img) {
  return (ImageSurface) swing(new F0<Object>() { Object get() { try { 
    ImageSurface is = new ImageSurface(img);
    JFrame frame = showPackedFrame(new JScrollPane(is));
    moveToTopRightCorner(frame);
    frameIcon(frame, showImage_defaultIcon);
    return is;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ImageSurface is = new ImageSurface(img);\r\n    JFrame frame = showPackedFrame(..."; }});
}

static ImageSurface showImage(String imageID) {
  return showImage(loadImage2(imageID));
}

static ImageSurface showImage(ImageSurface surface, BufferedImage img) {
  return showImage(img, surface);
}

static ImageSurface showImage(ImageSurface surface, String title, BufferedImage img) {
  return showImage(surface, img, title);
}

static ImageSurface showImage(ImageSurface surface, BufferedImage img, String title) {
  return setFrameTitle(showImage(img, surface), title);
}

static ImageSurface showImage(BufferedImage img, ImageSurface surface) {
  if (surface == null)
    return showImage(img);
  else {
    surface.setImage(img);
    return surface;
  }
}


  static ImageSurface showImage(String title, MakesBufferedImage img) {
    return showImage(title, img.getBufferedImage());
  }
  
  static ImageSurface showImage(RGBImage img) {
    return showImage(img.getBufferedImage());
  }
  
  static ImageSurface showImage(RGBImage img, String title) {
    ImageSurface is = showImage(img.getBufferedImage());
    getFrame(is).setTitle(title);
    return is;
  }
  
  static ImageSurface showImage(ImageSurface surface, RGBImage img) {
    return showImage(img, surface);
  }
  
  static ImageSurface showImage(RGBImage img, ImageSurface surface) {
    if (surface == null)
      return showImage(img);
    else {
      surface.setImage(img);
      return surface;
    }
  }
  
  static ImageSurface showImage(ImageSurface surface, String title, RGBImage img) {
    return showImage(surface, img, title);
  }
  
  static ImageSurface showImage(ImageSurface surface, RGBImage img, String title) {
    return setFrameTitle(showImage(img, surface), title);
  }






static ImageSurface showImage() {
  return showImage(currentImage());
}

static ImageSurface showImage(File f) {
  return showImage(f2s(f), loadImage2(f));
}
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 String getTextTrim(JTextComponent c) {
  return trim(getText(c));
}

// tested for editable combo box - returns the contents of text field
static String getTextTrim(JComboBox cb) {
  return trim(getText(cb));
}

static String getTextTrim(JComponent c) {
  if (c instanceof JLabel) return trim(((JLabel) c).getText());
  if (c instanceof JComboBox) return getTextTrim((JComboBox) c);
  return getTextTrim((JTextComponent) c);
}
static void dm_inQ(Runnable r) {
  dm_q().add(r);
}
static <A> List<A> cleanUpAndGetWeakReferencesList(List<WeakReference<A>> l) {
  if (l == null) return null;
  synchronized(l) {
    List<A> out = new ArrayList();
    for (int i = 0; i < l(l); i++) {
      A a = l.get(i).get();
      if (a == null)
        l.remove(i--);
      else
        out.add(a);
    }
    return out;
  }
}
static BufferedImage resizeImage(BufferedImage img, int newW, int newH) {
  return resizeImage(img, newW, newH, Image.SCALE_SMOOTH);
}

static BufferedImage resizeImage(BufferedImage img, int newW, int newH, int scaleType) {
  if (newW == img.getWidth() && newH == img.getHeight()) return img;
  Image tmp = img.getScaledInstance(newW, newH, scaleType);
  BufferedImage dimg = new BufferedImage(newW, newH, BufferedImage.TYPE_INT_ARGB);
  Graphics2D g2d = dimg.createGraphics();
  g2d.drawImage(tmp, 0, 0, null);
  g2d.dispose();
  return dimg;
}

static BufferedImage resizeImage(BufferedImage img, int newW) {
  int newH = iround(img.getHeight()*(double) newW/img.getWidth());
  return resizeImage(img, newW, newH);
}
static void swingAndWait(Runnable r) { try {
  if (isAWTThread())
    r.run();
  else
    EventQueue.invokeAndWait(addThreadInfoToRunnable(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 JLabel jImageLabel(Image img) {
  return swingNu(JLabel.class, imageIcon(img));
}

static JLabel jImageLabel(Icon icon) {
  return swingNu(JLabel.class, icon);
}

static JLabel jImageLabel(String imageID) {
  return jImageLabel(imageIcon(imageID));
}

static JLabel jImageLabel(String text, String imageID) {
  final JLabel l = swingNu(JLabel.class, text, imageIcon(imageID), JLabel.CENTER);
  { swing(new Runnable() {  public void run() { try { 
    l.setVerticalTextPosition(SwingConstants.BOTTOM);
    l.setHorizontalTextPosition(SwingConstants.CENTER);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "l.setVerticalTextPosition(SwingConstants.BOTTOM);\r\n    l.setHorizontalTextPos..."; }}); }
  return l;
}


static int withMargin_defaultWidth = 6;

static JPanel withMargin(Component c) {
  return withMargin(withMargin_defaultWidth, c);
}

static JPanel withMargin(int w, Component c) {
  return withMargin(w, w, c);
}

static JPanel withMargin(int w, int h, Component c) {
  return withMargin(w, h, w, h, c);
}

static JPanel withMargin(final int top, final int left, final int bottom, final int right, final Component c) {
  return swing(new F0<JPanel>() { JPanel get() { try { 
    JPanel p = new JPanel(new BorderLayout());
    p.setBorder(BorderFactory.createEmptyBorder(top, left, bottom, right));
    p.add(c);
    return p;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JPanel p = new JPanel(new BorderLayout);\r\n    p.setBorder(BorderFactory.creat..."; }});
}
static final Map<Class, _MethodCache> callOpt_cache = newDangerousWeakHashMap();

static Object callOpt_cached(Object o, String methodName, Object... args) { try {
  if (o == null) return null;
  
  if (o instanceof Class) {
    Class c = (Class) o;
    _MethodCache cache = callOpt_getCache(c);
    
    // TODO: (super-rare) case where method exists static and non-static
    // with different args
    
    Method me = cache.findMethod(methodName, args);
    if (me == null || (me.getModifiers() & Modifier.STATIC) == 0) return null;
    return invokeMethod(me, null, args);
  } else {
    Class c = o.getClass();
    _MethodCache cache = callOpt_getCache(c);

    Method me = cache.findMethod(methodName, args);
    if (me == null) return null;
    return invokeMethod(me, o, args);
  }
} catch (Exception __e) { throw rethrow(__e); } }

static _MethodCache callOpt_getCache(Class c) {
  synchronized(callOpt_cache) {
    _MethodCache cache = callOpt_cache.get(c);
    if (cache == null)
      callOpt_cache.put(c, cache = new _MethodCache(c));
    return cache;
  }
}
static <A> List<A> synchroList() {
  return Collections.synchronizedList(new ArrayList<A>());
}

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

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 {
    
    
    Class c = (Class) ( call(j, "hotwire", src));
    hotwire_copyOver(c);
    return c;
    
  }
}
static Object makeDependent_postProcess;

static void makeDependent(Object c) {
  if (c == null) return;
  assertTrue("Not a class", c instanceof Class);
  dependentClasses(); // cleans up the list
  hotwire_classes.add(new WeakReference(c));
  
  Object local_log = getOpt(mc(), "local_log");
  if (local_log != null)
    setOpt(c, "local_log", local_log);
    
  /*if (isTrue(getOpt(c, 'ping_actions_shareable)))
    setOpt(c, +ping_actions);*/
    
  Object print_byThread = getOpt(mc(), "print_byThread");
  if (print_byThread != null)
    setOpt(c, "print_byThread", print_byThread);
    
  callF(makeDependent_postProcess, c);
}

static boolean isURL(String s) {
  return startsWithOneOf(s, "http://", "https://", "file:");
}
static BufferedImage imageIO_readURL(String url) { try {
  if (startsWith(url, "https:")) // Java is still buggy there :(
    disableCertificateValidation();
  return ImageIO.read(new URL(url));
} catch (Exception __e) { throw rethrow(__e); } }

static boolean isAbsolutePath(String s) {
  return s != null && new File(s).isAbsolute();
}

static boolean isAbsolutePath(File f) {
  return f != null && f.isAbsolute();
}
  public static boolean isSnippetID(String s) {
    try {
      parseSnippetID(s);
      return true;
    } catch (RuntimeException e) {
      return false;
    }
  }
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(msg == null ? "" : msg); }
static RuntimeException fail(String msg, Throwable innerException) { throw new RuntimeException(msg, innerException); }

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 File imageSnippetsCacheDir() {
  return javaxCachesDir("Image-Snippets");
}
static String snippetImageURL_http(String snippetID) {
  return snippetImageURL_http(snippetID, "png");
}

static String snippetImageURL_http(String snippetID, String contentType) {
  return replacePrefix("https://", "http://", snippetImageURL(snippetID, contentType)).replace(":8443", ":8080");
}
static Class javax() {
  return getJavaX();
}
static DynModule dm_currentModuleMandatory() {
  return dm_current_mandatory();
}
static Cache<Map<String, Set>> vm_busListenersByMessage_live_cache = new Cache("vm_busListenersByMessage_live_load");
static Map<String, Set> vm_busListenersByMessage_live() { return vm_busListenersByMessage_live_cache.get(); }

static Map<String, Set> vm_busListenersByMessage_live_load() {
  return vm_generalHashMap("busListenersByMessage");
}

static <A> Set<A> syncIdentityHashSet() {
  return (Set) synchronizedSet(identityHashSet());
}
static <A> AutoCloseable tempAdd(final Collection<A> l, final A a) {
  if (l == null || l.contains(a)) return null;
  l.add(a);
  return new AutoCloseable() { public String toString() { return "l.remove(a);"; } public void close() throws Exception {  l.remove(a); }};
}
static Object first(Object list) {
  return first((Iterable) list);
}

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(IterableIterator<A> i) {
  return first((Iterator<A>) i);
}


static <A> A first(Iterator<A> i) {
  return i == null || !i.hasNext() ? null : i.next();
}

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 <A, B> A first(Pair<A, B> p) {
  return p == null ? null : p.a;
}



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

static <A> A second(A[] bla) {
  return bla == null || bla.length <= 1 ? null : bla[1];
}


static <A, B> B second(Pair<A, B> p) {
  return p == null ? null : p.b;
}



static <A> A third(List<A> l) {
  return _get(l, 2);
}

static <A> A third(A[] bla) {
  return bla == null || bla.length <= 2 ? null : bla[2];
}


static <A> VF1<A> runnableToVF1(final Runnable r) {
  return r == null ? null : new VF1<A>() { public void get(A a) { try {  r.run() ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "r.run()"; }};
}
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 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 int min(int[] c) {
  int x = Integer.MAX_VALUE;
  for (int d : c) if (d < x) x = d;
  return x;
}
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 List<VF1<Map>> _threadInfo_makers = synchroList();

static Object _threadInfo() {
  if (empty(_threadInfo_makers)) return null;
  HashMap map = new HashMap();
  pcallFAll(_threadInfo_makers, map);
  return map;
}
static volatile boolean licensed_yes = true;

static boolean licensed() {
  if (!licensed_yes) return false;
  ping_okInCleanUp();
  return true;
}

static void licensed_off() {
  licensed_yes = false;
}
static List<VF1<Map>> _threadInheritInfo_retrievers = synchroList();

static void _threadInheritInfo(Object info) {
  if (info == null) return;
  pcallFAll(_threadInheritInfo_retrievers, (Map) info);
}
static AutoCloseable tempActivity(Object r) {
  return null;
}
static long fixTimestamp(long timestamp) {
  return timestamp > now() ? 0 : timestamp;
}
static long now_virtualTime;
static long now() {
  return now_virtualTime != 0 ? now_virtualTime : System.currentTimeMillis();
}

static boolean eq(Object a, Object b) {
  return a == null ? b == null : a == b || b != null && a.equals(b);
}


static Object pcallF(Object f, Object... args) {
  return pcallFunction(f, args);
}


static <A> A pcallF(F0<A> f) { try {
  return f == null ? null : f.get();
} catch (Throwable __e) { return null; } }



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 int parseInt(String s) {
  return empty(s) ? 0 : Integer.parseInt(s);
}

static int parseInt(char c) {
  return Integer.parseInt(str(c));
}
static String getClassName(Object o) {
  return o == null ? "null" : o instanceof Class ? ((Class) o).getName() : o.getClass().getName();
}
static <A> List<A> childrenOfType(Component c, Class<A> theClass) {
  List<A> l = new ArrayList();
  scanForComponents(c, theClass, l);
  return l;
}

static <A> List<A> childrenOfType(Class<A> theClass, Component c) {
  return childrenOfType(c, theClass);
}
static void onFirstResize(final Component c, final Object r) {
  if (c != null && r != null) { swing(new Runnable() {  public void run() { try { 
    c.addComponentListener(new ComponentAdapter() {
      public void componentResized(ComponentEvent e) {
        c.removeComponentListener(this);
        pcallF(r);
      }
    });
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.addComponentListener(new ComponentAdapter {\r\n      public void componentRes..."; }}); }
}
static <A> A swingConstruct(final Class<A> c, final Object... args) {
  return swing(new F0<A>() { A get() { try {  return nuObject(c, args);  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret nuObject(c, args);"; }});
}
static <A extends Component> A _recordNewSwingComponent(A c) {
  if (c != null)
    callF((Object) vm_generalMap_get("newSwingComponentRegistry"), c);
  return c;
}
static Object callOpt(Object o) {
  return callF(o);
}

static <A> A callOpt(Object o, String method, Object... args) {
  return (A) callOpt_cached(o, method, args);
}
static JLabel jlabel(final String text) {
  return swingConstruct(BetterLabel.class, text);
}

static JLabel jlabel() {
  return jlabel(" ");
}
static Set vm_generalWeakSet(Object name) {
  synchronized(get(javax(), "generalMap")) {
    Set set = (Set) ( vm_generalMap_get(name));
    if (set == null)
      vm_generalMap_put(name, set = newWeakHashSet());
    return set;
  }
}

static AbstractAction abstractAction(String name, final Object runnable) {
  return new AbstractAction(name) {
    public void actionPerformed(ActionEvent evt) {
      pcallF(runnable);
    }
  };
}
static <A extends JComponent> A setFont(final Font font, final A a) {
  if (a != null) { swing(new Runnable() {  public void run() { try {  a.setFont(font); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "a.setFont(font);"; }}); }
  return a;
}

static <A extends JComponent> A setFont(A a, Font font) {
  return setFont(font, a);
}

static <A extends JComponent> A setFont(final String fontID, float fontSize, final A a) {
  return setFont(loadFont_cached(fontID, fontSize), a);
}
static JTextArea jTextArea() {
  return jTextArea("");
}

static JTextArea jTextArea(final String text) {
  return swingNu(JTextArea.class, text);
}
static Font typeWriterFont() {
  return typeWriterFont(iround(14*getSwingFontScale()));
}
  
static Font typeWriterFont(int size) {
  return new Font("Courier", Font.PLAIN, size);
}
static String defaultThreadName_name;

static String defaultThreadName() {
  if (defaultThreadName_name == null)
    defaultThreadName_name = "A thread by " + programID();
  return defaultThreadName_name;
}
static Runnable wrapAsActivity(Object r) {
  return toRunnable(r);
}
// runnable = Runnable or String (method name)
static Thread newThread(Object runnable) {
  return new Thread(_topLevelErrorHandling(toRunnable(runnable)));
}

static Thread newThread(Object runnable, String name) {
  if (name == null) name = defaultThreadName();
  return new Thread(_topLevelErrorHandling(toRunnable(runnable)), name);
}

static Thread newThread(String name, Object runnable) {
  return newThread(runnable, name);
}
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 Map<Thread, Boolean> _registerThread_threads;
static Object _onRegisterThread; // voidfunc(Thread)

static Thread _registerThread(Thread t) {
  if (_registerThread_threads == null)
    _registerThread_threads = newWeakHashMap();
  _registerThread_threads.put(t, true);
  vm_generalWeakSubMap("thread2mc").put(t, weakRef(mc()));
  callF(_onRegisterThread, t);
  return t;
}

static void _registerThread() { _registerThread(Thread.currentThread()); }
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;
}
static RuntimeException asRuntimeException(Throwable t) {
  
  if (t instanceof Error)
    _handleError((Error) t);
  
  return t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
}
static Component wrapForSmartAdd(Object o) {
  if (o == null) return jpanel();
  if (o instanceof String) return jlabel((String) o);
  return wrap(o);
}
static Object[] flattenArray2(Object... a) {
  List l = new ArrayList();
  if (a != null) for (Object x : a)
    if (x instanceof Object[])
      l.addAll(asList((Object[]) x));
    else if (x instanceof Collection)
      l.addAll((Collection) x);
    else
      l.add(x);
  return asObjectArray(l);
}
static ArrayList emptyList() {
  return new ArrayList();
  //ret Collections.emptyList();
}

static ArrayList emptyList(int capacity) {
  return new ArrayList(max(0, capacity));
}

// Try to match capacity
static ArrayList emptyList(Iterable l) {
  return l instanceof Collection ? emptyList(((Collection) l).size()) : emptyList();
}

// get correct type at once
static <A> ArrayList<A> emptyList(Class<A> c) {
  return new ArrayList();
}
static String dropPrefix(String prefix, String s) {
  return s == null ? null : s.startsWith(prefix) ? s.substring(l(prefix)) : s;
}
static ActionListener actionListener(final Object runnable) {
  return actionListener(runnable, null);
}

static ActionListener actionListener(final Object runnable, final Object instanceToHold) {
  if (runnable instanceof ActionListener) return (ActionListener) runnable;
  final Object info = _threadInfo();
  return new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { try {
    _threadInheritInfo(info);
     AutoCloseable __71 = holdInstance(instanceToHold); try {
    callF(runnable);
  } finally { _close(__71); }} catch (Throwable __e) { messageBox(__e); }}};
}
static String nullIfEmpty(String s) {
  return isEmpty(s) ? null : s;
}

static Map nullIfEmpty(Map map) {
  return isEmpty(map) ? null : map;
}

static <A> List<A> nullIfEmpty(List<A> l) {
  return isEmpty(l) ? null : l;
}
static boolean neq(Object a, Object b) {
  return !eq(a, b);
}
static HashMap litmap(Object... x) {
  HashMap map = new HashMap();
  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 boolean containsSpace(String s) {
  return containsSpaces(s);
}
static String firstToUpper(String s) {
  if (empty(s)) return s;
  return Character.toUpperCase(s.charAt(0)) + s.substring(1);
}
static String joinWithSpace(Collection<String> c) {
  return join(" ", c);
}

static String joinWithSpace(String... c) {
  return join(" ", c);
}

static <A> List<A> replaceElementsUsingMap(Iterable<A> l, final Map<A, A> map) {
  return map(l, new F1<A, A>() { A get(A a) { try {  return getOrKeep(map, a);  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "getOrKeep(map, a)"; }});
}
static List<String> splitCamelCase(String s) {
  return ai_splitCamelCase(s);
}
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;
}
static JCheckBox jCheckBox() {
  return swingNu(JCheckBox.class);
}

static JCheckBox jCheckBox(boolean checked) {
  return swingNu(JCheckBox.class, "", checked);
}

static JCheckBox jCheckBox(String text, boolean checked) {
  return swingNu(JCheckBox.class, text, checked);
}

static JCheckBox jCheckBox(String text) {
  return swingNu(JCheckBox.class, text);
}
  
static JCheckBox jCheckBox(String text, boolean checked, final Object onChange) {
  JCheckBox cb = jCheckBox(checked, onChange);
  cb.setText(text);
  return cb;
}
  
// onChange can be a Runnable or a voidfunc(bool)
static JCheckBox jCheckBox(boolean checked, final Object onChange) {
  final JCheckBox cb = jCheckBox(checked);
  cb.addChangeListener(new ChangeListener() {
    public void stateChanged(ChangeEvent e) {
      pcallF(onChange, cb.isSelected());
    }
  });
  return cb;
}
static <A extends JCheckBox> A bindCheckBoxToLiveValue(final A cb, final SimpleLiveValue<Boolean> lv) {
  bindLiveValueListenerToComponent(cb, lv, new Runnable() {  public void run() { try { 
    
    setChecked(cb, isTrue(lv.get()));
    
  ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "ifdef bindCheckBoxToLiveValue_debug\r\n      print(\"bindCheckBoxToLiveValue: se..."; }});
  onChange(cb, new Runnable() {  public void run() { try { 
    
    lv.set(isChecked(cb));
    
  ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "ifdef bindCheckBoxToLiveValue_debug\r\n      print(\"bindCheckBoxToLiveValue: se..."; }});
  return cb;
}
static void lock(Lock lock) { try {
  ping();
  if (lock == null) return;
  try {
    lock.lockInterruptibly();
  } catch (InterruptedException e) {
    print("Locking interrupted! I probably deadlocked, oops.");
    printStackTrace(e);
    rethrow(e);
  }
  ping();
} 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 Class getFieldType(Object o, String field) {
  return fieldType(o, field);
}
static void unlock(Lock lock, String msg) {
  if (lock == null) return;
  print("Unlocking: " + msg);
  lock.unlock();
}

static void unlock(Lock lock) {
  if (lock == null) return;
  lock.unlock();
}
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()));
}
static <A, B> Map<A, B> newDangerousWeakHashMap() {
  return _registerDangerousWeakMap(synchroMap(new WeakHashMap()));
}

// initFunction: voidfunc(Map) - is called initially, and after clearing the map
static <A, B> Map<A, B> newDangerousWeakHashMap(Object initFunction) {
  return _registerDangerousWeakMap(synchroMap(new WeakHashMap()), initFunction);
}
static 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;
  if (callMC_cache == null) callMC_cache = new HashMap(); // initializer time workaround
  synchronized(callMC_cache) {
    me = method == callMC_key ? callMC_value : null;
  }
  if (me != null) try {
    return invokeMethod(me, null, args);
  } catch (IllegalArgumentException e) {
    throw new RuntimeException("Can't call " + me + " with arguments " + classNames(args), e);
  }

  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;
    }
    try {
      return invokeMethod(me, null, args);
    } catch (IllegalArgumentException e) {
      throw new RuntimeException("Can't call " + me + " with arguments " + classNames(args), e);
    }
  }
  for (int i = 0; i < n; i++) {
    me = m.get(i);
    if (call_checkArgs(me, args, false))
      return invokeMethod(me, 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() & java.lang.reflect.Modifier.STATIC) != 0) {
          m.setAccessible(true);
          multiMapPut(callMC_cache, m.getName(), m);
        }
      c = c.getSuperclass();
    }
  }
}
static Object invokeMethod(Method m, Object o, Object... args) { try {
  try {
    return m.invoke(o, args);
  } catch (InvocationTargetException e) {
    throw rethrow(getExceptionCause(e));
  } catch (IllegalArgumentException e) {
    throw new IllegalArgumentException(e.getMessage() + " - was calling: " + m + ", args: " + joinWithSpace(classNames(args)));
  }
} catch (Exception __e) { throw rethrow(__e); } }
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 List<String> classNames(Collection l) {
  return getClassNames(l);
}

static List<String> classNames(Object[] l) {
  return getClassNames(Arrays.asList(l));
}
static boolean isStringOrIntOrLong(Object o) {
  return o instanceof String || o instanceof Integer || o instanceof Long;
}
static <A> A dm_callOS(String functionName, Object... args) {
  return (A) call(dm_os(), functionName, args);
}
static Object dm_resolveModule(Object moduleOrStem) {
  return dm_callOS("resolveModule", moduleOrStem);
}
// makes dynamic & static modules - returns module ID
static String dm_makeModule(String moduleLibID) {
  return (String) callCreator("makeModule", moduleLibID);
}
static <A> A getOpt(Object o, String field) {
  return (A) 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 rethrow(__e); } }

// access of static fields is not yet optimized
static <A> A 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 (A) f.get(null);
} catch (Exception __e) { throw rethrow(__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() & java.lang.reflect.Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}

static Class mc() {
  return main.class;
}
//sbool ping_actions_shareable = true;
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 = newWeakHashMap();
static ThreadLocal<Boolean> ping_isCleanUpThread = new ThreadLocal();


// always returns true
static boolean ping() {
  if (ping_pauseAll  || ping_anyActions ) ping_impl(true /* XXX */);
  //ifndef LeanMode ping_impl(); endifndef
  return true;
}

// returns true when it slept
static boolean ping_impl(boolean okInCleanUp) { try {
  if (ping_pauseAll && !isAWTThread()) {
    do
      Thread.sleep(ping_sleep);
    while (ping_pauseAll);
    return true;
  }
  
  
  if (ping_anyActions) { // don't allow sharing ping_actions
    if (!okInCleanUp && !isTrue(ping_isCleanUpThread.get()))
      failIfUnlicensed();
    Object action = null;
    synchronized(ping_actions) {
      if (!ping_actions.isEmpty()) {
        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 <A> int indexOf(List<A> l, A a, int startIndex) {
  if (l == null) return -1;
  for (int i = startIndex; i < l(l); i++)
    if (eq(l.get(i), a))
      return i;
  return -1;
}

static <A> int indexOf(List<A> l, int startIndex, A a) {
  return indexOf(l, a, startIndex);
}

static <A> int indexOf(List<A> l, A a) {
  if (l == null) return -1;
  return l.indexOf(a);
}

static int indexOf(String a, String b) {
  return a == null || b == null ? -1 : a.indexOf(b);
}

static int indexOf(String a, String b, int i) {
  return a == null || b == null ? -1 : a.indexOf(b, i);
}

static int indexOf(String a, char b) {
  return a == null ? -1 : a.indexOf(b);
}

static int indexOf(String a, int i, char b) {
  return indexOf(a, b, i);
}

static int indexOf(String a, char b, int i) {
  return a == null ? -1 : a.indexOf(b, i);
}

static int indexOf(String a, int i, String b) {
  return a == null || b == null ? -1 : a.indexOf(b, i);
}

static <A> int indexOf(A[] x, A a) {
  if (x == null) return -1;
  for (int i = 0; i < l(x); i++)
    if (eq(x[i], a))
      return i;
  return -1;
}
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 InheritableThreadLocal < WeakReference < DynModule > > dm_currentModule_value = new InheritableThreadLocal();

static DynModule dm_currentModule() {
  return getWeakRef(dm_currentModule_value.get());
}

static void _onLoad_dm_currentModule() {
  setOptMC("dm_currentModule_generic", dm_currentModule_value);
}

// prevent memory leak
static void cleanMeUp_dm_currentModule() {
  dm_currentModule_value = new InheritableThreadLocal();
}
static void logQuotedWithTime(String s) {
  logQuotedWithTime(standardLogFile(), s);
}

static void logQuotedWithTime(File logFile, String s) {
  logQuoted(logFile, logQuotedWithTime_format(s));
}

static void logQuotedWithTime(String logFile, String s) {
  logQuoted(logFile, logQuotedWithTime_format(s));
}

static String logQuotedWithTime_format(String s) {
  return /*formatGMTWithDate_24*/(now()) + " " + s;
}
static boolean empty(Collection c) { return c == null || c.isEmpty(); }
static boolean empty(CharSequence 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);
  if (o instanceof byte[]) return empty((byte[]) o);
  if (o == null) return true;
  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 boolean empty(byte[] a) { return a == null || a.length == 0; }



static boolean empty(File f) { return getFileSize(f) == 0; }
static void pcallFAll(Collection l, Object... args) {
  if (l != null) for (Object f : cloneList(l)) pcallF(f, args);
}

static void pcallFAll(Iterator it, Object... args) {
  while (it.hasNext()) pcallF(it.next(), args);
}
static Cache<Set> vm_busListeners_live_cache = new Cache("vm_busListeners_live_load");
static Set vm_busListeners_live() { return vm_busListeners_live_cache.get(); }

static Set vm_busListeners_live_load() {
  return vm_generalIdentityHashSet("busListeners");
}

static Object dm_evalJava_withModule(String expression, Object... args) {
  Object m = dm_current_mandatory_generic();
  String code = evalJava_prep(expression) + "\r\n    static O dm_current_mandatory_generic_value;\r\n    \r\n    static O dm_current_mandatory_generic() { ret dm_current_mandatory_generic_value; }\r\n  ";
  Object obj = veryQuickJava(code);
  setOpt(obj, "programID" , programID());
  makeDependent(obj);
  setOpt(obj, "creator_class" , newWeakReference(dm_os()));
  set(obj, "dm_current_mandatory_generic_value" , m);
  return evalJava_myProgramID_main_2(obj, args);
}
static InheritableThreadLocal<WeakReference> dm_currentModule_generic = new InheritableThreadLocal();

static Object dm_current_mandatory_generic() {
  return assertNotNull("No module set", getWeakRef(dm_currentModule_generic.get()));
}
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 boolean canQuickEval(String t) {
  return isQuoted(t) || isIdentifier(t) || isInteger(t) || isSnippetID(t);
}
static Object quickEval(String t) {
  if (isQuoted(t)) return unquote(t);
  if (isInteger(t)) return parseInt(t);
  if (isLongConstant(t)) return parseLong(t);
  if (eq(t, "null")) return null;
  if (eq(t, "false")) return false;
  if (eq(t, "true")) return true;
  if (isIdentifier(t)) return getMC(t);
  if (isSnippetID(t)) return t;
  throw quickFail("Can't quick eval: " + t);
}
// returns pair(functionName, args)
static Pair<String, List<String>> tok_parseFunctionCall(String s) {
  return tok_parseFunctionCall(javaTok(s));
}
  
static Pair<String, List<String>> tok_parseFunctionCall(List<String> tok) {
  if (!(isIdentifier(get(tok, 1)) && eqGet(tok, 3, "("))) return null;
  Map<Integer, Integer> bracketMap = getBracketMap(tok);
  Integer iClosing = bracketMap.get(3);
  if (!(eq(iClosing, l(tok)-4) && eqGet(tok, l(tok)-2, ";"))
    && neq(iClosing, l(tok)-2)) return null;
  int i = 5, argStart = 5;
  List<String> args = new ArrayList();
  while (i < iClosing) {
    Integer j = bracketMap.get(i);
    if (j != null) { i = j+2; continue; }
    if (eqGetOneOf(tok, i, ",")) {
      if (i > argStart) args.add(trimJoinSubList(tok, argStart, i));
      argStart = i+2;
    }
    i += 2;
  }
  if (i > argStart) args.add(trimJoinSubList(tok, argStart, i));
  return pair(tok.get(1), args);
}
static void shareMyCreatorWith(Object o) {
  setCreatorTo(o, creator());
}
static <A> AutoCloseable tempSetTL(ThreadLocal<A> tl, A a) {
  return tempSetThreadLocal(tl, a);
}
static <A> WeakReference<A> weakRef(A a) {
  return newWeakReference(a);
}
static Object callAndMake(String functionName, Object... args) {
  return callAndMake_orDirect(functionName, args);
}
static List map(Iterable l, Object f) { return map(f, l); }

static List map(Object f, Iterable l) {
  List x = emptyList(l);
  if (l != null) for (Object o : l)
    x.add(callF(f, o));
  return x;
}


  static <A, B> List<B> map(Iterable<A> l, F1<A, B> f) { return map(f, l); }

  static <A, B> List<B> map(F1<A, B> f, Iterable<A> l) {
    List x = emptyList(l);
    if (l != null) for (Object o : 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);
}

// map: func(key, value) -> list element
static List map(Map map, Object f) {
  List x = new ArrayList();
  if (map != null) for (Object _e : map.entrySet()) {
    Map.Entry e = (Map.Entry) _e;
    x.add(callF(f, e.getKey(), e.getValue()));
  }
  return x;
}
static Object javaEvalOrInterpret(String code) {
  if (!canJavaInterpret(code)) return javaEval(code);
  if (canQuickEval(code)) return quickEval(code);
  Pair<String, List<String>> p = tok_parseFunctionCall(code);
  if (p != null)
    return callAndMake(p.a, toObjectArray(map("javaEvalOrInterpret",p.b)));
  return 
}
static int countLines(String s) {
  return l(toLines(s)); // yeah could be optimized :-)
}
public static <A> String join(String glue, Iterable<A> strings) {
  if (strings == null) return "";
  StringBuilder buf = new StringBuilder();
  Iterator<A> 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 <A> String join(Iterable<A> strings) {
  return join("", strings);
}

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

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


static String join(String glue, Pair p) {
  return p == null ? "" : str(p.a) + glue + str(p.b);
}

static void logQuoted(String logFile, String line) {
  logQuoted(getProgramFile(logFile), line);
}

static void logQuoted(File logFile, String line) {
  appendToFile(logFile, quote(line) + "\n");
}
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();
  HashMap<Class,Field> persistenceInfo = 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) { try {
  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 Short) { short s = ((Short) o).shortValue(); d.append("sh ", 2); out.print(s); d.n += s < 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(o instanceof LinkedHashSet ? "lhs" : "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$RefL") */) {
      if (name.equals("java.util.Collections$SynchronizedList")
        || name.equals("java.util.Collections$SynchronizedRandomAccessList")) d.append("sync");
      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.sta..."; }});
      return;
    }
    
    if (o instanceof Map && !startsWith(name, "main$")) {
      if (o instanceof LinkedHashMap) d.append("lhm");
      else if (o instanceof HashMap) d.append("hm");
      else if (name.equals("java.util.Collections$SynchronizedMap")) d.append("sync");
      else if (name.equals("java.util.Collections$SynchronizedSortedMap")) { d.append("sync tm", 2); }
      
      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)) {
        String fieldName = field.getName();
        if (fieldName.equals("_persistenceInfo"))
          d.persistenceInfo.put(c, field);
        if ((field.getModifiers() & (java.lang.reflect.Modifier.STATIC | java.lang.reflect.Modifier.TRANSIENT)) != 0)
          continue;

        fields.add(field);
        
        // put special cases here...?
      }
        
      cc = cc.getSuperclass();
    }
    
    // TODO: S fieldOrder = getOpt(c, "_fieldOrder");
    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
  }

  Field persistenceInfoField = (Field) ( d.persistenceInfo.get(c));
  Map<String, Object> persistenceInfo = persistenceInfoField == null ? null : (Map) persistenceInfoField.get(o);
  
  LinkedHashMap<String,Object> fv = new LinkedHashMap();
  for (Field f : lFields) {
    Object value;
    try {
      value = f.get(o);
    } catch (Exception e) {
      value = "?";
    }
      
    if (value != null && (persistenceInfo == null
      || !Boolean.FALSE.equals(persistenceInfo.get(f.getName()))))
      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..."; }});
} catch (Exception __e) { throw rethrow(__e); } }

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 PersistableThrowable persistableThrowable(Throwable e) {
  return e == null ? null : new PersistableThrowable(e);
}
static Throwable innerException(Throwable e) {
  return getInnerException(e);
}
static <A> ArrayList<A> cloneList(Iterable<A> l) {
  return l instanceof Collection ? cloneList((Collection) l) : asList(l);
}

static <A> ArrayList<A> cloneList(Collection<A> l) {
  if (l == null) return new ArrayList();
  synchronized(collectionMutex(l)) {
    return new ArrayList<A>(l);
  }
}
static RGBImage loadImage(String snippetIDOrURL) {
  return new RGBImage(loadBufferedImage(snippetIDOrURL));
}

static RGBImage loadImage(File f) {
  return new RGBImage(loadBufferedImage(f));
}
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((Button..."; }});
}
static JFrame showPackedFrame(String title, Component contents) {
  return packFrame(showFrame(title, contents));
}

static JFrame showPackedFrame(Component contents) {
  return packFrame(showFrame(contents));
}
static int moveToTopRightCorner_inset = 20;

static <A extends Component> A moveToTopRightCorner(A a) {
  return moveToTopRightCorner(moveToTopRightCorner_inset, moveToTopRightCorner_inset, a);
}

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

static Component frameIcon(Component c, String imageID) {
  setFrameIconLater(c, imageID);
  return c;
}

static Component frameIcon(String imageID, Component c) {
  setFrameIconLater(c, imageID);
  return c;
}
static <A> A setFrameTitle(A c, final String title) {
  final Frame f = getAWTFrame(c);
  if (f != null) { swing(new Runnable() {  public void run() { try {  f.setTitle(title); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "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 ThreadLocal<BufferedImage> currentImage_var = new ThreadLocal();

static BufferedImage currentImage() {
  return currentImage_var.get();
}

static void currentImage(BufferedImage img) {
  currentImage_var.set(img);
}
static String f2s(File f) {
  return f == null ? null : f.getAbsolutePath();
}

static String f2s(java.nio.file.Path p) {
  return p == null ? null : f2s(p.toFile());
}
static String getStackTrace2(Throwable e) {
  return hideCredentials(getStackTrace(unwrapTrivialExceptionWraps(e)) + replacePrefix("java.lang.RuntimeException: ", "FAIL: ",
    hideCredentials(str(innerException2(e)))) + "\n");
}
static String getText(final AbstractButton c) {
  return c == null ? "" : (String) swingAndWait(new F0<Object>() { Object get() { try {  return c.getText();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret c.getText();"; }});
}

static String getText(final JTextComponent c) {
  return c == null ? "" : (String) swingAndWait(new F0<Object>() { Object get() { try {  return c.getText();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret c.getText();"; }});
}

static String getText(final JLabel l) {
  return l == null ? "" : (String) swingAndWait(new F0<Object>() { Object get() { try {  return l.getText();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret l.getText();"; }});
}

// returns the contents of text field for editable combo box
static String getText(final JComboBox cb) {
  if (cb == null) return null;
  if (isEditableComboBox(cb))
    return unnull((String) cb.getEditor().getItem());
  else
    return str(cb.getSelectedItem());
}
static int iround(double d) {
  return (int) Math.round(d);
}

static int iround(Number n) {
  return iround(toDouble(n));
}
// 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 Runnable addThreadInfoToRunnable(final Object r) {
  final Object info = _threadInfo();
  return info == null ? asRunnable(r) : new Runnable() {  public void run() { try {  _inheritThreadInfo(info); callF(r); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "_inheritThreadInfo(info); callF(r);"; }};
}
static int imageIcon_cacheSize = 10;
static boolean imageIcon_verbose;
static Map<String, ImageIcon> imageIcon_cache;
static Lock imageIcon_lock = lock();
static ThreadLocal<Boolean> imageIcon_fixGIF = new ThreadLocal();

// not going through BufferedImage preserves animations
static ImageIcon imageIcon(String imageID) { try {
  if (imageID == null) return null;
  Lock __119 = imageIcon_lock; lock(__119); try {
  if (imageIcon_cache == null)
    imageIcon_cache = new MRUCache(imageIcon_cacheSize);
  imageID = fsI(imageID);
  ImageIcon ii = imageIcon_cache.get(imageID);
  if (ii == null) {
    if (imageIcon_verbose) print("Loading image icon: " + imageID);
    File f = loadBinarySnippet(imageID);
    
      Boolean b = imageIcon_fixGIF.get();
      if (!isFalse(b))
        ii = new ImageIcon(loadBufferedImageFixingGIFs(f));
      else
    
    ii = new ImageIcon(f.toURI().toURL());
  } else
    imageIcon_cache.remove(imageID); // move to front of cache on access
  imageIcon_cache.put(imageID, ii);
  return ii;
} finally { unlock(__119); } } catch (Exception __e) { throw rethrow(__e); } }

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


  static ImageIcon imageIcon(RGBImage img) {
    return imageIcon(img.getBufferedImage());
  }



static void assertFalse(Object o) {
  if (!(eq(o, false) /*|| isFalse(pcallF(o))*/))
    throw fail(str(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 boolean _inCore() {
  return false;
}
static Class __javax;

static Class getJavaX() { try {
  
  return __javax;
} catch (Exception __e) { throw rethrow(__e); } }
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 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 if (c == '\0')
      out.append("\\0");
    else
      out.append(c);
  }
  out.append('"');
}
static List hotwire_copyOver_after = synchroList();

static void hotwire_copyOver(Class c) {
  // TODO: make a mechanism for making such "inheritable" fields
  for (String field : ll("print_log", "print_silent", "androidContext", "_userHome"))
    setOptIfNotNull(c, field, getOpt(mc(), field));
    
  
  
  setOptIfNotNull(c, "mainBot" , getMainBot());
  setOpt(c, "creator_class" , new WeakReference(mc()));
  pcallFAll(hotwire_copyOver_after, c);
}
static void assertTrue(Object o) {
  if (!(eq(o, true) /*|| isTrue(pcallF(o))*/))
    throw fail(str(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 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;
  
  if (getOpt_cache == null)
    map = getOpt_makeCache(c); // in class init
  else 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() & java.lang.reflect.Modifier.STATIC) != 0) {
        f.setAccessible(true);
        return f;
      }
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static boolean startsWithOneOf(String s, String... l) {
  for (String x : l) if (startsWith(s, x)) return true; return false;
}
static boolean startsWith(String a, String b) {
  return a != null && a.startsWith(b);
}

static boolean startsWith(String a, char c) {
  return nempty(a) && a.charAt(0) == c;
}


  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 volatile boolean disableCertificateValidation_attempted;

static void disableCertificateValidation() { try {
  if (disableCertificateValidation_attempted) return;
  disableCertificateValidation_attempted = true;
  
  try {
    // Create a trust manager that does not validate certificate chains
    TrustManager[] trustAllCerts = new TrustManager[] { 
      new X509TrustManager() {
        public X509Certificate[] getAcceptedIssuers() { 
          return new X509Certificate[0]; 
        }
        public void checkClientTrusted(X509Certificate[] certs, String authType) {}
        public void checkServerTrusted(X509Certificate[] certs, String authType) {}
    }};
  
    // Ignore differences between given hostname and certificate hostname
    HostnameVerifier hv = new HostnameVerifier() {
      public boolean verify(String hostname, SSLSession session) { return true; }
    };
  
    // Install the all-trusting trust manager
    SSLContext sc = SSLContext.getInstance("SSL");
    sc.init(null, trustAllCerts, new SecureRandom());
    HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
    HttpsURLConnection.setDefaultHostnameVerifier(hv);
  } catch (Throwable __e) { _handleException(__e); }
} catch (Exception __e) { throw rethrow(__e); } }
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 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 File javaxCachesDir(String sub) {
  return newFile(javaxCachesDir(), sub);
}
static String replacePrefix(String prefix, String replacement, String s) {
  if (!startsWith(s, prefix)) return s;
  return replacement + substring(s, l(prefix));
}
static String snippetImageURL(String snippetID) {
  return snippetImageURL(snippetID, "png");
}

static String snippetImageURL(String snippetID, String contentType) {
  if (isURL(snippetID)) return snippetID;
  long id = parseSnippetID(snippetID);
  String url;
  if (id == 1000010 || id == 1000012)
    url = "http://tinybrain.de:8080/tb/show-blobimage.php?id=" + id;
  else if (isImageServerSnippet(id))
    url = imageServerLink(id);
  else
    //url = "http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_" + id + "&contentType=image/" + contentType;
    url = "https://www.botcompany.de:8443/img/" + id;
  return url;
}
static Map vm_generalHashMap(Object name) {
  synchronized(get(javax(), "generalMap")) {
    Map m = (Map) ( vm_generalMap_get(name));
    if (m == null)
      vm_generalMap_put(name, m = syncHashMap());
    return m;
  }
}

static <A> Set<A> synchronizedSet() {
  return synchroHashSet();
}

static <A> Set<A> synchronizedSet(Set<A> set) {
  return Collections.synchronizedSet(set);
}
static <A> Set<A> identityHashSet() {
  return Collections.newSetFromMap(new IdentityHashMap());
}
static <A> A _get(List<A> l, int idx) {
  return l != null && idx >= 0 && idx < l(l) ? l.get(idx) : null;
}

static Object _get(Object o, String field) {
  return get(o, field);
}

static <A> A _get(A[] l, int idx) {
  return idx >= 0 && idx < l(l) ? l[idx] : null;
}
static boolean nempty(Collection c) {
  return !empty(c);
}

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

static boolean nempty(Object[] o) { return !empty(o); }
static boolean nempty(byte[] o) { return !empty(o); }
static boolean nempty(int[] o) { return !empty(o); }

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

static boolean nempty(Iterator i) {
  return i != null && i.hasNext();
}

static boolean nempty(Object o) { return !empty(o); }
static String formatSnippetIDOpt(String s) {
  return isSnippetID(s) ? formatSnippetID(s) : s;
}
static String formatSnippetID(String id) {
  return "#" + parseSnippetID(id);
}

static String formatSnippetID(long id) {
  return "#" + id;
}
static Class getMainClass() {
  return mc();
}

static Class getMainClass(Object o) { try {
  if (o == null) return null;
  if (o instanceof Class && eq(((Class) o).getName(), "x30")) return (Class) o;
  return (o instanceof Class ? (Class) o : o.getClass()).getClassLoader().loadClass("main");
} catch (Exception __e) { throw rethrow(__e); } }
static Object pcallFunction(Object f, Object... args) {
  try { return callFunction(f, args); } catch (Throwable __e) { _handleException(__e); }
  return null;
}
static <A> void scanForComponents(final Component c, final Class<A> theClass, final List<A> l) {
  if (theClass.isInstance(c))
    l.add((A) c);
  if (c instanceof Container) { swing(new Runnable() {  public void run() { try { 
    for (Component comp : ((Container) c).getComponents())
      scanForComponents(comp, theClass, l);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "for (Component comp : ((Container) c).getComponents())\r\n      scanForComponen..."; }}); }
}
static Object nuObject(String className, Object... args) { try {
  return nuObject(classForName(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 {
  if (args.length == 0) return nuObjectWithoutArguments(c); // cached!
  
  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() & java.lang.reflect.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 <A> A vm_generalMap_get(Object key) {
  return (A) vm_generalMap().get(key);
}
static Object vm_generalMap_put(Object key, Object value) {
  return mapPutOrRemove(vm_generalMap(), key, value);
}
static <A> Set<A> newWeakHashSet() {
  return synchroWeakHashSet();
}
static Map<String,Font> loadFont_cached_cache = new HashMap();

static synchronized Font loadFont_cached(String snippetID) { try {
  snippetID = formatSnippetID(snippetID);
  Font f = loadFont_cached_cache.get(snippetID);
  if (f == null)
    loadFont_cached_cache.put(snippetID, f = loadFont(snippetID, 12f));
  return f;
} catch (Exception __e) { throw rethrow(__e); } }

static synchronized Font loadFont_cached(String snippetID, float size) { try {
  return loadFont_cached(snippetID).deriveFont(size);
} catch (Exception __e) { throw rethrow(__e); } }
static float getSwingFontScale() {
  return or((Float) vm_generalMap_get("swingFontScale_value"), 1f);
}
static Runnable _topLevelErrorHandling(final Runnable runnable) {
  final Object info = _threadInfo();
  return new Runnable() {  public void run() { try { 
    try {
      _threadInheritInfo(info);
      runnable.run();
    } catch (Throwable __e) { _handleException(__e); }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "pcall {\r\n      _threadInheritInfo(info);\r\n      runnable.run();\r\n    }"; }};
}
static <A, B> Map<A, B> newWeakHashMap() {
  return _registerWeakMap(synchroMap(new WeakHashMap()));
}
static Map vm_generalWeakSubMap(Object name) {
  synchronized(get(javax(), "generalMap")) {
    Map map = (Map) ( vm_generalMap_get(name));
    if (map == null)
      vm_generalMap_put(name, map = newWeakMap());
    return map;
  }
}

static JPanel jpanel(LayoutManager layout) {
  return swingNu(JPanel.class, layout);
}

static JPanel jpanel() {
  return swingNu(JPanel.class);
}
static Object[] asObjectArray(List l) {
  return toObjectArray(l);
}
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 double max(double a, double 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 int max(int[] c) {
  int x = Integer.MIN_VALUE;
  for (int d : c) if (d > x) x = d;
  return x;
}
static ThreadLocal < List < Object > > holdInstance_l = new ThreadLocal();

static AutoCloseable holdInstance(Object o) {
  if (o == null) return null;
  listThreadLocalAdd(holdInstance_l, o);
  return new AutoCloseable() {
    public void close() {
      listThreadLocalPopLast(holdInstance_l);
    }
  };
}
static void messageBox(final String msg) {
  if (headless()) print(msg);
  else { swing(new Runnable() {  public void run() { try { 
    JOptionPane.showMessageDialog(null, msg, "JavaX", JOptionPane.INFORMATION_MESSAGE);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "JOptionPane.showMessageDialog(null, msg, \"JavaX\", JOptionPane.INFORMATION_MES..."; }}); }
}

static void messageBox(Throwable e) {
  //showConsole();
  printStackTrace(e);
  messageBox(hideCredentials(innerException2(e)));
}
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(byte[] a) { return a == null || a.length == 0; }

static boolean isEmpty(Map map) {
  return map == null || map.isEmpty();
}
static boolean containsSpaces(String s) {
  return indexOf(s, ' ') >= 0;
}
static <A> A getOrKeep(Map<A, ? extends A> map, A a) {
  A v = map.get(a);
  return v != null ? v : a;
}
static List<String> ai_splitCamelCase(String s) {
  int j = 0;
  List<String> l = new ArrayList();
  for (int i = 0; i < l(s); i++)
    if (isUpperCaseLetter(s.charAt(i)) && i > j) {
      l.add(substring(s, j, i));
      j = i;
    }
  if (j < l(s))
    l.add(substring(s, j));
  return l;
}
static <A extends JComponent> A bindLiveValueListenerToComponent(A component, final LiveValue lv, final Runnable listener) {
  if (lv != null)
    bindToComponent(component,
      new Runnable() {  public void run() { try { 
        
        lv.onChangeAndNow(listener);
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "ifdef bindLiveValueListenerToComponent_debug\r\n          print(\"bindLiveValueL..."; }},
      new Runnable() {  public void run() { try {  lv.removeOnChangeListener(listener) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "lv.removeOnChangeListener(listener)"; }});
  return component;
}
static void setChecked(final JCheckBox checkBox, final boolean b) {
  if (checkBox != null) { swing(new Runnable() {  public void run() { try { 
    if (isChecked(checkBox) != b)
      checkBox.setSelected(b);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (isChecked(checkBox) != b)\r\n      checkBox.setSelected(b);"; }}); }
}
static boolean isTrue(Object o) {
  if (o instanceof Boolean)
    return ((Boolean) o).booleanValue();
  if (o == null) return false;
  if (o instanceof ThreadLocal)
    return isTrue(((ThreadLocal) o).get());
  throw fail(getClassName(o));
}
static void onChange(JSpinner spinner, Object r) {
  spinner.addChangeListener(changeListener(r));
}

static <A extends AbstractButton> A onChange(A b, Object r) {
  b.addItemListener(itemListener(r));
  return b;
}

static void onChange(JTextComponent tc, Object r) {
  onUpdate(tc, r);
}

static void onChange(final JSlider slider, final Object r) {
  { swing(new Runnable() {  public void run() { try { 
    slider.addChangeListener(changeListener(r));
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "slider.addChangeListener(changeListener(r));"; }}); }
}

static void onChange(JComboBox cb, final Object r) {
  if (isEditableComboBox(cb))
    onChange(textFieldFromComboBox(cb), r);
  else
    onSelectedItem(cb, new VF1<String>() { public void get(String s) { try {  callF(r) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "callF(r)"; }});
}
static boolean isChecked(final JCheckBox checkBox) {
  return checkBox != null && (boolean) swing(new F0<Boolean>() { Boolean get() { try {  return checkBox.isSelected();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret checkBox.isSelected();"; }});
}

static boolean isChecked(final JCheckBoxMenuItem mi) {
  return mi != null && (boolean) swing(new F0<Boolean>() { Boolean get() { try {  return mi.isSelected();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret mi.isSelected();"; }});
}
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 lockOrFail(Lock lock, long timeout) { try {
  ping();
  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);
  }
  ping();
} catch (Exception __e) { throw rethrow(__e); } }
static ReentrantLock fairLock() {
  return new ReentrantLock(true);
}
static Class fieldType(Object o, String field) {
  Field f = getField(o, field);
  return f == null ? null : f.getType();
}
static List<Pair> _registerDangerousWeakMap_preList;

static <A> A _registerDangerousWeakMap(A map) {
  return _registerDangerousWeakMap(map, null);
}

static <A> A _registerDangerousWeakMap(A map, Object init) {
  callF(init, map);
  
  if (init instanceof String) {
    final String f = (String) ( init);
    init = new VF1<Map>() { public void get(Map map) { try {  callMC(f, map) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "callMC(f, map)"; }};
  }
    
  if (javax() == null) {
    // We're in class init
    if (_registerDangerousWeakMap_preList == null) _registerDangerousWeakMap_preList = synchroList();
    _registerDangerousWeakMap_preList.add(pair(map, init));
    return map;
  }
  
  call(javax(), "_registerDangerousWeakMap", map, init);
  return map;
}

static void _onLoad_registerDangerousWeakMap() {
  assertNotNull(javax());
  if (_registerDangerousWeakMap_preList == null) return;
  for (Pair p : _registerDangerousWeakMap_preList)
    _registerDangerousWeakMap(p.a, p.b);
  _registerDangerousWeakMap_preList = null;
}
static Map synchroMap() {
  return synchroHashMap();
}

static <A, B> Map<A, B> synchroMap(Map<A, B> map) {
  return Collections.synchronizedMap(map);
}
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 Throwable getExceptionCause(Throwable e) {
  Throwable c = e.getCause();
  return c != null ? c : e;
}
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 List<String> getClassNames(Collection l) {
  List<String> out = new ArrayList();
  if (l != null) for (Object o : l)
    out.add(o == null ? null : getClassName(o));
  return out;
}
static Object dm_os() {
  return creator();
}
static <A> A callCreator(String functionName, Object... args) {
  return (A) call(creator(), functionName, args);
}
//static final Map<Class, HashMap<S, Field>> getOpt_cache = newDangerousWeakHashMap(f getOpt_special_init);

static class getOpt_Map extends WeakHashMap {
  getOpt_Map() {
    if (getOpt_special == null) getOpt_special = new HashMap();
    clear();
  }
  
  public void clear() {
    super.clear();
    //print("getOpt clear");
    put(Class.class, getOpt_special);
    put(String.class, getOpt_special);
  }
}

static final Map<Class, HashMap<String, Field>> getOpt_cache = _registerDangerousWeakMap(synchroMap(new getOpt_Map()));
//static final Map<Class, HashMap<S, Field>> getOpt_cache = _registerWeakMap(synchroMap(new getOpt_Map));
static HashMap getOpt_special; // just a marker

/*static void getOpt_special_init(Map map) {
  map.put(Class.class, getOpt_special);
  map.put(S.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);
  }
  if (getOpt_cache != null) getOpt_cache.put(c, map);
  return map;
}
static void failIfUnlicensed() {
  assertTrue("license off", licensed());
}
static Thread currentThread() {
  return Thread.currentThread();
}
static <A> A getWeakRef(WeakReference<A> ref) {
  return ref == null ? null : ref.get();
}
static void setOptMC(String field, Object value) {
  setOpt(mc(), field, value);
}
static File standardLogFile() {
  return getProgramFile("log");
}
static String getType(Object o) {
  return getClassName(o);
}
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 Set vm_generalIdentityHashSet(Object name) {
  synchronized(get(javax(), "generalMap")) {
    Set set = (Set) ( vm_generalMap_get(name));
    if (set == null)
      vm_generalMap_put(name, set = syncIdentityHashSet());
    return set;
  }
}

static String evalJava_prep(String code) {
  return evalJava_prep(code, "calc");
}

static String evalJava_prep(String code, String mainName) {
  return evalJava_prep(code, mainName, "");
}

static ThreadLocal<String> evalJava_prep_args = new ThreadLocal();
static ThreadLocal<Boolean> evalJava_prep_voidMagic = new ThreadLocal(); // set to false to avoid looking up standard function return types

static String evalJava_prep(String code, String mainName, String preCode) {
  List<String> tok = javaTok(trim(code));
  
  if (!isFalse(evalJava_prep_voidMagic.get()) && tok_shouldAddReturn(tok) && eqGet(tok, 3, "(") && isIdentifier(get(tok, 1)) && isKnownVoidFunction(get(tok, 1)))
    tokAppend_reTok(tok, l(tok)-2, ";");
    
  code = tok_addReturn(tok);
  String returnType = containsReturnWithArgument(code) ? "O" : "void";
  String main =
    "static " + returnType + " " + mainName + "(" + unnull(evalJava_prep_args.get()) + ") throws Exception { " 
      + preCode + code + "\n" + "}";
  return main;
}
// mainJava is a complete program, but without the !752/!759 at the top
// returns link to main class
static Class veryQuickJava(CharSequence mainJava) {
  return veryQuickJava3(str(mainJava)); // Latest version with internal compiler bot.
}
static <A> WeakReference<A> newWeakReference(A a) {
  return a == null ? null : new WeakReference(a);
}
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);
    f.setAccessible(true);
    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);
    f.setAccessible(true);
    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() & java.lang.reflect.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 ThreadLocal<Long> evalJava_myProgramID_main_time = new ThreadLocal();

static Object evalJava_myProgramID_main(String main, Object... args) {
  //veryQuickJava_transpiled.set("");
  Object obj = veryQuickJava(main);
  //S src = getAndClearThreadLocal(veryQuickJava_transpiled);
  //saveProgramTextFile("debug.java", src);
  //print("getOpt sane: " + getOpt_cache.get(Class.class));
  //print("programID: " + getOpt(obj, "programID") + ", my=" + programID() + ", fields: " + fieldNames(obj));
  //print("programIDXXX: " + getOpt((Class) obj, "programID"));
  //print("field: " + setOpt_findStaticField(obj, "programID"));
  setOpt(obj, "programID", programID());
  makeDependent(obj);
  return evalJava_myProgramID_main_2(obj, args);
}

static Object evalJava_myProgramID_main_2(Object obj, Object... args) {
  //print("programID: " + getOpt(obj, "programID"));
  long time = sysNow();
  try {
    return callCalc(obj, args);
  } finally {
    evalJava_myProgramID_main_time.set(sysNow()-time);
  }
}
// supports the usual quotings (", variable length double brackets) except ' quoting
static boolean isQuoted(String s) {
  
  
  if (isNormalQuoted(s)) return true; // use the exact version
  
  return isMultilineQuoted(s);
}
static boolean isInteger(String s) {
  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 String unquote(String s) {
  if (s == null) return null;
  if (startsWith(s, '[')) {
    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.length() > 1) {
    char c = s.charAt(0);
    if (c == '\"' || c == '\'') {
      int l = endsWith(s, c) ? 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 '\\': 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;
          // 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 boolean isLongConstant(String s) {
  if (!s.endsWith("L")) return false;
  s = s.substring(0, l(s)-1);
  return isInteger(s);
}
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);
}
static Object getMC(String field) {
  return get(mc(), field);
}
static RuntimeException quickFail() { throw new QuickException("fail"); }
static RuntimeException quickFail(Throwable e) { throw asQuickException(e); }
static RuntimeException quickFail(Object msg) { throw new QuickException(String.valueOf(msg)); }
static RuntimeException quickFail(String msg) { throw new QuickException(unnull(msg)); }
static RuntimeException quickFail(String msg, Throwable innerException) { throw new QuickException(msg, innerException); }

// TODO: extended multi-line strings

static int javaTok_n, javaTok_elements;
static boolean javaTok_opt;

static List<String> javaTok(String s) {
  ++javaTok_n;
  ArrayList<String> tok = new ArrayList();
  int l = s == null ? 0 : 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;
    }
    
    tok.add(javaTok_substringN(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) {
        int c2 = s.charAt(j);
        if (c2 == opener || c2 == '\n' && opener == '\'') { // allow multi-line strings, but not for '
          ++j;
          break;
        } else if (c2 == '\\' && 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(javaTok_substringC(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 javaTokWithExisting(join(tok), tok);
}
static boolean eqGet(List l, int i, Object o) {
  return eq(get(l, i), o);
}

static <A, B> boolean eqGet(Map<A, B> map, A key, Object o) {
  return eq(mapGet(map, key), o);
}
// map: index of opening bracket -> index of closing bracket
static Map<Integer, Integer> getBracketMap(List tok) {
  return getBracketMap(tok, getBracketMap_opening, getBracketMap_closing);
}

static Map<Integer, Integer> getBracketMap(List tok, Collection<String> opening, Collection<String> closing) {
  return getBracketMap(tok, opening, closing, 0, l(tok));
}

static Map<Integer, Integer> getBracketMap(List tok, Collection<String> opening, Collection<String> closing, int from, int to) {
  TreeMap<Integer,Integer> map = new TreeMap();
  List<Integer> stack = new ArrayList();
  for (int i = from|1; i < to; i+= 2) {
    if (opening.contains(tok.get(i)))
      stack.add(i);
    else if (closing.contains(tok.get(i))) {
      if (!empty(stack))
        map.put(liftLast(stack), i);
    }
  }
  return map;
}

static Set<String> getBracketMap_opening = lithashset("{", "(");
static Set<String> getBracketMap_closing = lithashset("}", ")");
static <A> boolean eqGetOneOf(List<A> l, int i, A... options) {
  return eqOneOf(get(l, i), options);
}
static String trimJoinSubList(List<String> l, int i, int j) {
  return trim(join(subList(l, i, j)));
}

static String trimJoinSubList(List<String> l, int i) {
  return trim(join(subList(l, i)));
}
static <A, B> Pair<A, B> pair(A a, B b) {
  return new Pair(a, b);
}

static <A> Pair<A, A> pair(A a) {
  return new Pair(a, a);
}
static void setCreatorTo(Object o, Object creator) {
  setOpt(o, "creator_class" , newWeakReference(creator));
}
static WeakReference<Object> creator_class;

static Object creator() {
  return creator_class == null ? null : creator_class.get();
}
static <A> AutoCloseable tempSetThreadLocal(final ThreadLocal<A> tl, A a) {
  if (tl == null) return null;
  final A prev = setThreadLocal(tl, a);
  return new AutoCloseable() { public String toString() { return "tl.set(prev);"; } public void close() throws Exception {  tl.set(prev); }};
}
static Object callAndMake_orDirect(String functionName, List args) {
  return callAndMake_orDirect(functionName, toObjectArray(args));
}

static Object callAndMake_orDirect(String functionName, Object... args) {
  if (functionName == null) return null;
  if (hasMethod(mc(), functionName, args))
    return callMC(functionName, args);
  else
    return makeAndCall_cached(functionName, args);
}
static boolean canJavaInterpret(String code) {
  if (canQuickEval(code)) return true;
  Pair<String, List<String>> p = tok_parseFunctionCall(code);
  if (p == null) return false;
  for (String arg : p.b)
    if (!canJavaInterpret(arg)) return false;
  return true;
}
static Object javaEval(String code) {
  return evalJava(code);
}
static IterableIterator<String> toLines(File f) {
  return linesFromFile(f);
}

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;
}

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;
}
static Lock appendToFile_lock = lock();
static boolean appendToFile_keepOpen;
static HashMap<String,Writer> appendToFile_writers = new HashMap();

static void appendToFile(String path, String s) { try {
  Lock __246 = appendToFile_lock; lock(__246); try { // Let's just generally synchronize this to be safe.
  mkdirsForFile(new File(path));
  path = getCanonicalPath(path);
  Writer writer = appendToFile_writers.get(path);
  if (writer == null) {
    //print("[Logging to " + path + "]");
    writer = new BufferedWriter(new OutputStreamWriter(
      newFileOutputStream(path, true), "UTF-8"));
    if (appendToFile_keepOpen)
      appendToFile_writers.put(path, writer);
  }
  writer.write(s);
  if (!appendToFile_keepOpen)
    writer.close();
} finally { unlock(__246); } } catch (Exception __e) { throw rethrow(__e); } }
  
static void appendToFile(File path, String s) {
  if (path != null)
    appendToFile(path.getPath(), s);
}

static void cleanMeUp_appendToFile() {
   AutoCloseable __250 = tempCleaningUp(); try {
  Lock __247 = appendToFile_lock; lock(__247); try {
  closeAllWriters(values(appendToFile_writers));
  appendToFile_writers.clear();
} finally { unlock(__247); } } finally { _close(__250); }}
static <A> A assertEquals(Object x, A y) {
  return assertEquals(null, x, y);
}

static <A> A assertEquals(String msg, Object x, A y) {
  if (assertVerbose()) return assertEqualsVerbose(msg, x, y);
  if (!(x == null ? y == null : x.equals(y)))
    throw fail((msg != null ? msg + ": " : "") + y + " != " + x);
  return y;
}
static List<String> javaTokC(String s) {
  if (s == null) return null;
  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(javaTok_substringC(s, i, j));
    i = j;
  }
  
  return tok;
}
static <A> A popLast(List<A> l) {
  return liftLast(l);
}
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 if (c == '\0')
      out.print("\\0");
    else
      out.print(c);
  }
  out.print('"');
}
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 + "'";
}

  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 String boolArrayToHex(boolean[] a) {
  return bytesToHex(boolArrayToBytes(a));
}
static Iterator emptyIterator() {
  return Collections.emptyIterator();
}
static String shortDynamicClassName(Object o) {
 if (o instanceof DynamicObject && ((DynamicObject) o).className != null)
    return ((DynamicObject) o).className;
  return shortClassName(o);
}
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 Map<Class, Field[]> getDeclaredFields_cache = newDangerousWeakHashMap();

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 File getProgramDir() {
  return programDir();
}

static File getProgramDir(String snippetID) {
  return programDir(snippetID);
}
static Throwable getInnerException(Throwable e) {
  if (e == null) return null;
  while (e.getCause() != null)
    e = e.getCause();
  return e;
}

static Throwable getInnerException(Runnable r) {
  return getInnerException(getException(r));
}
static Object collectionMutex(Object o) {
  String c = className(o);
  if (eq(c, "java.util.TreeMap$KeySet"))
    c = className(o = getOpt(o, "m"));
  else if (eq(c, "java.util.HashMap$KeySet"))
    c = className(o = get_raw(o, "this$0"));

  
  
  if (eqOneOf(c, "java.util.TreeMap$AscendingSubMap", "java.util.TreeMap$DescendingSubMap"))
    c = className(o = get_raw(o, "m"));
    
  
    
  return o;
}
static List<AbstractButton> buttonsInGroup(ButtonGroup g) {
  if (g == null) return ll();
  return asList(g.getElements());
}
static int packFrame_minw = 150, packFrame_minh = 50;

static <A extends Component> A packFrame(final A c) {
  { swing(new Runnable() {  public void run() { try { 
    Window w = getWindow(c);
    if (w != null) {
      w.pack();
      int maxW = getScreenWidth()-50, maxH = getScreenHeight()-50;
      w.setSize(
        min(maxW, max(w.getWidth(), packFrame_minw)),
        min(maxH, max(w.getHeight(), packFrame_minh)));
    }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "Window w = getWindow(c);\r\n    if (w != null) {\r\n      w.pack();\r\n      int ma..."; }}); }
  return c;
}

static JFrame packFrame(ButtonGroup g) {
  return packFrame(getFrame(g));
}
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 f) {
  if (f != null) { swing(new Runnable() {  public void run() { try { 
    if (frameTooSmall(f)) frameStandardSize(f);
    if (!f.isVisible()) f.setVisible(true); // XXX
    if (f.getState() == Frame.ICONIFIED) f.setState(Frame.NORMAL);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (frameTooSmall(f)) frameStandardSize(f);\r\n    if (!f.isVisible()) f.setVis..."; }}); }
  return f;
}

// 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 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 Dimension getScreenSize() {
  return Toolkit.getDefaultToolkit().getScreenSize();
}
static JFrame setFrameIconLater(Component c, final String imageID) {
  final JFrame frame = getFrame(c);
  if (frame != null)
    startThread("Loading Icon", new Runnable() {  public void run() { try {    
      final Image i = imageIcon(or2(imageID, "#1005557")).getImage();
      swingLater(new Runnable() {  public void run() { try { 
        frame.setIconImage(i);
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "frame.setIconImage(i);"; }});
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "final Image i = imageIcon(or2(imageID, \"#1005557\")).getImage();\r\n      swingL..."; }});
  return frame;
}
static Frame getAWTFrame(final Object _o) {
  return swing(new F0<Frame>() { Frame get() { try { 
    Object o = _o;
    /*
    ifdef HaveProcessing
      if (o instanceof PApplet) o = ((PApplet) o).getSurface();
    endifdef
    */
    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 Frame) return (Frame) c;
      c = c.getParent();
    }
    return null;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "O o = _o;\r\n    /*\r\n    ifdef HaveProcessing\r\n      if (o instanceof PApplet) ..."; }});
}
static String hideCredentials(URL url) { return url == null ? null : hideCredentials(str(url)); }

static String hideCredentials(String url) {
  return url.replaceAll("([&?])(_pass|key)=[^&\\s\"]*", "$1$2=<hidden>");
}

static String hideCredentials(Object o) {
  return hideCredentials(str(o));
}
static String getStackTrace(Throwable throwable) {
  lastException(throwable);
  return getStackTrace_noRecord(throwable);
}

static String getStackTrace_noRecord(Throwable throwable) {
  StringWriter writer = new StringWriter();
  throwable.printStackTrace(new PrintWriter(writer));
  return hideCredentials(writer.toString());
}

static String getStackTrace() {
  return getStackTrace_noRecord(new Throwable());
}
static Throwable unwrapTrivialExceptionWraps(Throwable e) {
  if (e == null) return e;
  while (e.getClass() == RuntimeException.class
    && e.getCause() != null && eq(e.getMessage(), str(e.getCause())))
    e = e.getCause();
  return e;
}
static Throwable innerException2(Throwable e) {
  if (e == null) return null;
  while (empty(e.getMessage()) && e.getCause() != null)
    e = e.getCause();
  return e;
}
static boolean isEditableComboBox(final JComboBox cb) {
  return cb != null && swing(new F0<Boolean>() { Boolean get() { try {  return cb.isEditable();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret cb.isEditable();"; }});
}
static String unnull(String s) {
  return s == null ? "" : s;
}

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

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

static <A, B> Map<A, B> unnull(Map<A, B> l) {
  return l == null ? emptyMap() : l;
}

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

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

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


static Pt unnull(Pt p) {
  return p == null ? new Pt() : p;
}


//ifclass Symbol

static double toDouble(Object o) {
  if (o instanceof Number)
    return ((Number) o).doubleValue();
  if (o instanceof BigInteger)
    return ((BigInteger) o).doubleValue();
  if (o == null) return 0.0;
  throw fail(o);
}
static Boolean isHeadless_cache;

static boolean isHeadless() {
  if (isHeadless_cache != null) return isHeadless_cache;
  if (isAndroid()) return isHeadless_cache = true;
  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 Runnable asRunnable(Object o) {
  return toRunnable(o);
}


static void _inheritThreadInfo(Object info) {
  _threadInheritInfo(info);
}
static String fsI(String id) {
  return formatSnippetID(id);
}

static String fsI(long id) {
  return formatSnippetID(id);
}
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 boolean loadBufferedImageFixingGIFs_debug;
static ThreadLocal<Var<byte[]>> loadBufferedImageFixingGIFs_output = new ThreadLocal();

static Image loadBufferedImageFixingGIFs(File file) { try {
  if (!file.exists()) return null;

  // Load anything but GIF the normal way
  if (!isGIF(file))
    return ImageIO.read(file);
    
  if (loadBufferedImageFixingGIFs_debug) print("loadBufferedImageFixingGIFs" + ": checking gif");

  // Get GIF reader
  ImageReader reader = ImageIO.getImageReadersByFormatName("gif").next();
  // Give it the stream to decode from
  reader.setInput(ImageIO.createImageInputStream(file));

  int numImages = reader.getNumImages(true);

  // Get 'metaFormatName'. Need first frame for that.
  IIOMetadata imageMetaData = reader.getImageMetadata(0);
  String metaFormatName = imageMetaData.getNativeMetadataFormatName();

  // Find out if GIF is bugged
  boolean foundBug = false;
  for (int i = 0; i < numImages && !foundBug; i++) {
      // Get metadata
      IIOMetadataNode root = (IIOMetadataNode)reader.getImageMetadata(i).getAsTree(metaFormatName);

      // Find GraphicControlExtension node
      int nNodes = root.getLength();
      for (int j = 0; j < nNodes; j++) {
          org.w3c.dom.Node node = root.item(j);
          if (node.getNodeName().equalsIgnoreCase("GraphicControlExtension")) {
              // Get delay value
              String delay = ((IIOMetadataNode)node).getAttribute("delayTime");

              // Check if delay is bugged
              if (Integer.parseInt(delay) == 0) {
                  foundBug = true;
              }

              break;
          }
      }
  }

  if (loadBufferedImageFixingGIFs_debug) print("loadBufferedImageFixingGIFs" + ": " + f2s(file) + " foundBug=" + foundBug);
  
  // Load non-bugged GIF the normal way
  Image image;
  if (!foundBug) {
    image = Toolkit.getDefaultToolkit().createImage(f2s(file));
  } else {
    // Prepare streams for image encoding
    ByteArrayOutputStream baoStream = new ByteArrayOutputStream();
    {
       ImageOutputStream ios = ImageIO.createImageOutputStream(baoStream); try {
      // Get GIF writer that's compatible with reader
      ImageWriter writer = ImageIO.getImageWriter(reader);
      // Give it the stream to encode to
      writer.setOutput(ios);

      writer.prepareWriteSequence(null);

      for (int i = 0; i < numImages; i++) {
          // Get input image
          BufferedImage frameIn = reader.read(i);

          // Get input metadata
          IIOMetadataNode root = (IIOMetadataNode)reader.getImageMetadata(i).getAsTree(metaFormatName);

          // Find GraphicControlExtension node
          int nNodes = root.getLength();
          for (int j = 0; j < nNodes; j++) {
              org.w3c.dom.Node node = root.item(j);
              if (node.getNodeName().equalsIgnoreCase("GraphicControlExtension")) {
                  // Get delay value
                  String delay = ((IIOMetadataNode)node).getAttribute("delayTime");

                  // Check if delay is bugged
                  if (Integer.parseInt(delay) == 0) {
                      // Overwrite with a valid delay value
                      ((IIOMetadataNode)node).setAttribute("delayTime", "10");
                  }

                  break;
              }
          }

          // Create output metadata
          IIOMetadata metadata = writer.getDefaultImageMetadata(new ImageTypeSpecifier(frameIn), null);
          // Copy metadata to output metadata
          metadata.setFromTree(metadata.getNativeMetadataFormatName(), root);

          // Create output image
          IIOImage frameOut = new IIOImage(frameIn, null, metadata);

          // Encode output image
          writer.writeToSequence(frameOut, writer.getDefaultWriteParam());
      }

      writer.endWriteSequence();
    } finally { _close(ios); }}

    // Create image using encoded data
    byte[] data = baoStream.toByteArray();
    setVar(loadBufferedImageFixingGIFs_output.get(), data);
    if (loadBufferedImageFixingGIFs_debug) print("Data size: " + l(data));
    image = Toolkit.getDefaultToolkit().createImage(data);
  }

  return image;
} catch (Exception __e) { throw rethrow(__e); } }




static void setOptIfNotNull(Object o, String field, Object value) {
  if (value != null) setOpt(o, field, value);
}
static Object mainBot;

static Object getMainBot() {
  return mainBot;
}
static void setOpt_raw(Object o, String field, Object value) { try {
  if (o == null) return;
  if (o instanceof Class) setOpt_raw((Class) o, field, value);
  else {
    Field f = setOpt_raw_findField(o.getClass(), field);
    if (f != null) {
      f.setAccessible(true);
      smartSet(f, o, value);
    }
  }
} catch (Exception __e) { throw rethrow(__e); } }

static void setOpt_raw(Class c, String field, Object value) { try {
  if (c == null) return;
  Field f = setOpt_raw_findStaticField(c, field);
  if (f != null) {
    f.setAccessible(true);
    smartSet(f, null, value);
  }
} catch (Exception __e) { throw rethrow(__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() & java.lang.reflect.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 void smartSet(Field f, Object o, Object value) throws Exception {
  try {
    f.set(o, value);
  } catch (Exception e) {
    Class type = f.getType();
    
    // take care of common case (long to int)
    if (type == int.class && value instanceof Long)
      value = ((Long) value).intValue();
    
    if (type == LinkedHashMap.class && value instanceof Map)
      { f.set(o, asLinkedHashMap((Map) value)); return; }
    
    
      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 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 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 boolean isImageServerSnippet(long id) {
  return id >= 1100000 && id < 1200000;
}
static String imageServerLink(String md5OrID) {
  if (possibleMD5(md5OrID))
    return "https://botcompany.de/images/md5/" + md5OrID;
  return imageServerLink(parseSnippetID(md5OrID));
}

static String imageServerLink(long id) {
  return "https://botcompany.de/images/" + id;
}
static Map syncHashMap() {
  return synchroHashMap();
}
static <A> Set<A> synchroHashSet() {
  return Collections.synchronizedSet(new HashSet<A>());
}

static Object callFunction(Object f, Object... args) {
  return callF(f, args);
}
static Map<String, Class> classForName_cache = synchroHashMap();

static Class classForName(String name) { try {
  Class c = classForName_cache.get(name);
  if (c == null)
    classForName_cache.put(name, c = Class.forName(name));
  return c;
} catch (Exception __e) { throw rethrow(__e); } }
static Map<Class, Constructor> nuObjectWithoutArguments_cache = newDangerousWeakHashMap();

static Object nuObjectWithoutArguments(String className) { try {
  return nuObjectWithoutArguments(classForName(className));
} catch (Exception __e) { throw rethrow(__e); } }

static <A> A nuObjectWithoutArguments(Class<A> c) { try {
  if (nuObjectWithoutArguments_cache == null)
    // in class init
    return (A) nuObjectWithoutArguments_findConstructor(c).newInstance();
    
  Constructor m = nuObjectWithoutArguments_cache.get(c);
  if (m == null)
    nuObjectWithoutArguments_cache.put(c, m = nuObjectWithoutArguments_findConstructor(c));
  return (A) m.newInstance();
} catch (Exception __e) { throw rethrow(__e); } }

static Constructor nuObjectWithoutArguments_findConstructor(Class c) {
  for (Constructor m : c.getDeclaredConstructors())
    if (empty(m.getParameterTypes())) {
      m.setAccessible(true);
      return m;
    }
  throw fail("No default constructor found in " + c.getName());
}

static List<Class> getClasses(Object[] array) {
  List<Class> l = new ArrayList();
  for (Object o : array) l.add(_getClass(o));
  return l;
}
static Map vm_generalMap_map;

static Map vm_generalMap() {
  if (vm_generalMap_map == null)
    vm_generalMap_map = (Map) get(javax(), "generalMap");
  return vm_generalMap_map;
}
static <A, B> B mapPutOrRemove(Map<A, B> map, A key, B value) {
  if (map != null && key != null)
    if (value != null) return map.put(key, value);
    else return map.remove(key);
  return null;
}
static <A> Set<A> synchroWeakHashSet() {
  return Collections.newSetFromMap((Map) newWeakHashMap());
}
static Font loadFont(String snippetID) { try {
  return loadFont(snippetID, 12f);
} catch (Exception __e) { throw rethrow(__e); } }

static Font loadFont(InputStream in) { try {
  return Font.createFont(Font.TRUETYPE_FONT, in);
} catch (Exception __e) { throw rethrow(__e); } }

static Font loadFont(String snippetID, float fontSize) {
  return loadFont(loadLibrary(snippetID), fontSize);
}

static Font loadFont(File f, float fontSize) { try {
  return Font.createFont(Font.TRUETYPE_FONT, f).deriveFont(fontSize);
} catch (Exception __e) { throw rethrow(__e); } }

static Font loadFont(InputStream in, float fontSize) { try {
  return Font.createFont(Font.TRUETYPE_FONT, in).deriveFont(fontSize);
} catch (Exception __e) { throw rethrow(__e); } }
static List _registerWeakMap_preList;

static <A> A _registerWeakMap(A map) {
  if (javax() == null) {
    // We're in class init
    if (_registerWeakMap_preList == null) _registerWeakMap_preList = synchroList();
    _registerWeakMap_preList.add(map);
    return map;
  }
  
  try {
    call(javax(), "_registerWeakMap", map);
  } catch (Throwable e) {
    printException(e);
    print("Upgrade JavaX!!");
  }
  return map;
}

static void _onLoad_registerWeakMap() {
  assertNotNull(javax());
  if (_registerWeakMap_preList == null) return;
  for (Object o : _registerWeakMap_preList)
    _registerWeakMap(o);
  _registerWeakMap_preList = null;
}
static <A, B> Map<A, B> newWeakMap() {
  return newWeakHashMap();
}
static <A> void listThreadLocalAdd(ThreadLocal<List<A>> tl, A a) {
  List<A> l = tl.get();
  if (l == null) tl.set(l = new ArrayList());
  l.add(a);
}
static <A> A listThreadLocalPopLast(ThreadLocal<List<A>> tl) {
  List<A> l = tl.get();
  if (l == null) return null;
  A a = popLast(l);
  if (empty(l)) tl.set(null);
  return a;
}
static boolean headless() {
  return isHeadless();
}
static boolean isUpperCaseLetter(char c) {
  return Character.isUpperCase(c);
}
static <A extends JComponent> A bindToComponent(final A component, final Runnable onShow, final Runnable onUnShow) {
  { swing(new Runnable() {  public void run() { try { 
    final Var < Boolean > flag = new Var(false);
    component.addAncestorListener(new AncestorListener() {
      public void ancestorAdded(AncestorEvent event) {
        if (flag.get()) print("Warning: bindToComponent logic failure");
        flag.set(true);
        pcallF(onShow);
      }
  
      public void ancestorRemoved(AncestorEvent event) {
        if (!flag.get()) print("Warning: bindToComponent logic failure");
        flag.set(false);
        pcallF(onUnShow);
      }
  
      public void ancestorMoved(AncestorEvent event) {
      }
    });
    if (component.isShowing()) { // Hopefully this matches the AncestorListener logic
      flag.set(true);
      pcallF(onShow);
    }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "final Var<Boolean> flag = new(false);\r\n    component.addAncestorListener(new ..."; }}); }
  return component;
}

static <A extends JComponent> A bindToComponent(A component, Runnable onShow) {
  return bindToComponent(component, onShow, null);
}
static ChangeListener changeListener(final Object r) {
  return new ChangeListener() {
    public void stateChanged(ChangeEvent e) {
      pcallF(r);
    }
  };
}
static ItemListener itemListener(final Object r) {
  return new ItemListener() {
    public void itemStateChanged(ItemEvent e) {
      pcallF(r);
    }
  };
}
// action = runnable or method name
static void onUpdate(JComponent c, final Object r) {
  if (c instanceof JTextComponent)
    ((JTextComponent) c).getDocument().addDocumentListener(new DocumentListener() {
      public void insertUpdate(DocumentEvent e) {
        call(r);
      }
      public void removeUpdate(DocumentEvent e) {
        call(r);
      }
      public void changedUpdate(DocumentEvent e) {
        call(r);
      }
    });
  else if (c instanceof ItemSelectable) // JCheckBox and others
    ((ItemSelectable) c).addItemListener(new ItemListener() {
      public void itemStateChanged(ItemEvent e) {
        call(r);
      }
    });
  else
    print("Warning: onUpdate doesn't know " + getClassName(c));
}

static void onUpdate(List<? extends JComponent> l, Object r) {
  for (JComponent c : l)
    onUpdate(c, r);
}
static JTextField textFieldFromComboBox(JComboBox cb) {
  return (JTextField) cb.getEditor().getEditorComponent();
}
static JComboBox onSelectedItem(final JComboBox cb, final VF1<String> f) {
  addActionListener(cb, new Runnable() {  public void run() { try { 
    pcallF(f, selectedItem(cb))
  ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "pcallF(f, selectedItem(cb))"; }});
  return cb;
}
static Field getField(Object o, String field) {
  if (o == null) return null;
  return setOpt_findField(_getClass(o), field);
}
static Map synchroHashMap() {
  return Collections.synchronizedMap(new HashMap());
}

static void clear(Collection c) {
  if (c != null) c.clear();
}
static <A, B> void put(Map<A, B> map, A a, B b) {
  if (map != null) map.put(a, b);
}
static boolean isSubtypeOf(Class a, Class b) {
  return b.isAssignableFrom(a); // << always hated that method, let's replace it!
}
static boolean tok_shouldAddReturn(List<String> tok) {
  String lastToken = get(tok, l(tok)-2);
  return !eqOneOf(lastToken, "}", ";");
}

static boolean tok_shouldAddReturn(String s) {
  return tok_shouldAddReturn(javaTok(s));
}
static boolean isKnownVoidFunction(String name) {
  //ret mL_localCopy("Void Standard Functions").contains(name);
  return standardFunctionAlwaysReturnsVoid(name);
}
static void tokAppend_reTok(List<String> tok, int i, String s) {
  tok.set(i, tok.get(i)+s);
  reTok(tok, i, i+1);
}
// optionally convert expression to return statement
static String tok_addReturn(List<String> tok) {
  if (tok_shouldAddReturn(tok)) {
    tokPrepend(tok, 1, "ret ");
    tokAppend(tok, l(tok)-2, ";");
  }
  return join(tok);
}

static String tok_addReturn(String s) {
  return tok_addReturn(javaTok(s));
}
// We'd be really fancy if we filtered out return statements in
// inner blocks.
static boolean containsReturnWithArgument(List<String> tok) {
  for (int i = 1; i+2 < l(tok); i += 2)
    if (eqOneOf(tok.get(i), "ret", "return") && neq(tok.get(i+2), ";"))
      return true;
  return false;
}

static boolean containsReturnWithArgument(String code) {
  return containsReturnWithArgument(javaTok(code));
}
static boolean veryQuickJava_silent = true;
static boolean veryQuickJava_useCompilerBot = true; // we always use it now
static ThreadLocal<String> veryQuickJava_transpiled = new ThreadLocal();
static Object veryQuickJava3_cacheFunction; // func(S, LS) -> Class

// mainJava is a complete program, but without the !752/!759 at the top
// returns link to main class
static Class veryQuickJava3(String mainJava) {
  return veryQuickJava3(mainJava, emptyList());
}

static Class veryQuickJava3(String mainJava, List<String> libs) {
  Class c = (Class) ( callF(veryQuickJava3_cacheFunction, mainJava, libs));
  if (c != null) return c;
  transpileRaw_silent = veryQuickJava_silent;
  String src = transpileRaw(mainJava); // transpiled, with lib references
  if (veryQuickJava_transpiled.get() != null)
    veryQuickJava_transpiled.set(src);
  return veryQuickJava_finish(src, libs);
}
static Object callCalc(Object o, Object... args) {
  return call(o, "calc", args);
}
static boolean isNormalQuoted(String s) {
  int l = l(s);
  if (!(l >= 2 && s.charAt(0) == '"' && lastChar(s) == '"')) return false;
  int j = 1;
  while (j < l)
    if (s.charAt(j) == '"')
      return j == l-1;
    else if (s.charAt(j) == '\\' && j+1 < l)
      j += 2;
    else
      ++j;
  return false;
}
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 boolean endsWith(String a, String b) {
  return a != null && a.endsWith(b);
}

static boolean endsWith(String a, char c) {
  return nempty(a) && lastChar(a) == c;
}


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


static String dropSuffix(String suffix, String s) {
  return s.endsWith(suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
static RuntimeException asQuickException(Throwable t) {
  return t instanceof RuntimeException ? (RuntimeException) t : new QuickException(t);
}
static String javaTok_substringN(String s, int i, int j) {
  if (i == j) return "";
  if (j == i+1 && s.charAt(i) == ' ') return " ";
  return s.substring(i, j);
}
static String javaTok_substringC(String s, int i, int j) {
  return s.substring(i, j);
}
static List<String> javaTokWithExisting(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 && javaTokWithExisting_isCopyable(existing.get(n), s, i, j))
      tok.add(existing.get(n));
    else
      tok.add(javaTok_substringN(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 && javaTokWithExisting_isCopyable(existing.get(n), s, i, j))
      tok.add(existing.get(n));
    else
      tok.add(javaTok_substringC(s, i, j));
    ++n;
    i = j;
  }
  
  if ((tok.size() % 2) == 0) tok.add("");
  javaTok_elements += tok.size();
  return tok;
}

static boolean javaTokWithExisting_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 <A, B> B mapGet(Map<A, B> map, A a) {
  return map == null || a == null ? null : map.get(a);
}
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;
}
static <A> HashSet<A> lithashset(A... items) {
  HashSet<A> set = new HashSet();
  for (A a : items) set.add(a);
  return set;
}
static boolean eqOneOf(Object o, Object... l) {
  for (Object x : l) if (eq(o, x)) return true; return false;
}
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) {
  if (l == null) return null;
  startIndex = Math.max(0, startIndex);
  endIndex = Math.min(l(l), endIndex);
  if (startIndex >= endIndex) return ll();
  return l.subList(startIndex, endIndex);
}


static <A> A setThreadLocal(ThreadLocal<A> tl, A value) {
  if (tl == null) return null;
  A old = tl.get();
  tl.set(value);
  return old;
}
static boolean hasMethod(Object o, String method, Object... args) {
  return findMethod(o, method, args) != null;
}
// contains voidfunc(childClass)
static ThreadLocal makeAndCall_initChild = new ThreadLocal();

static Object makeAndCall_cached(String functionName, Object... args) {
  Class c = loadFunctions_cached(functionName);
  AutoCloseable closer = (AutoCloseable) ( callF(makeAndCall_initChild.get(), c));
   AutoCloseable __89 = closer; try {
  return preciseCall(c, functionName, args);
} finally { _close(__89); }}
static Object evalJava(String code) {
  return evalJava_main(evalJava_prep(code));
}
static CloseableIterableIterator<String> linesFromFile(File f) { try {
  if (!f.exists()) return emptyCloseableIterableIterator();
  if (ewic(f.getName(), ".gz"))
    return linesFromReader(utf8bufferedReader(newGZIPInputStream(f)));
  return linesFromReader(utf8bufferedReader(f));
} catch (Exception __e) { throw rethrow(__e); } }
public static File mkdirsForFile(File file) {
  File dir = file.getParentFile();
  if (dir != null) { // is null if file is in current dir
    dir.mkdirs();
    if (!dir.isDirectory())
      if (dir.isFile()) throw fail("Please delete the file " + f2s(dir) + " - it is supposed to be a directory!");
      else throw fail("Unknown IO exception during mkdirs of " + f2s(file));
  }
  return file;
}

public static String mkdirsForFile(String path) {
  mkdirsForFile(new File(path));
  return path;
}
static String getCanonicalPath(String path) { try {
  return new File(path).getCanonicalPath();
} catch (Exception __e) { throw rethrow(__e); } }
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(File path, boolean append) throws IOException {
  return newFileOutputStream(path.getPath(), append);
}

static FileOutputStream newFileOutputStream(String path, boolean append) throws IOException {
  mkdirsForFile(path);
  FileOutputStream f = new FileOutputStream(path, append);
  
  _registerIO(f, path, true);
  
  return f;
}
static AutoCloseable tempCleaningUp() {
  return tempSetTL(ping_isCleanUpThread, true);
}
static void closeAllWriters(Collection<? extends Writer> l) {
  for (Writer w : unnull(l)) { try {
    w.close();
  } catch (Throwable __e) { _handleException(__e); }}
}
static <A, B> Collection<B> values(Map<A, B> map) {
  return map == null ? emptyList() : map.values();
}




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

static void assertVerbose(boolean b) {
  assertVerbose_value.set(b);
}

static boolean assertVerbose() { return isTrue(assertVerbose_value.get()); }
static <A> A assertEqualsVerbose(Object x, A y) {
  assertEqualsVerbose((String) null, x, y);
  return y;
}

static <A> A assertEqualsVerbose(String msg, Object x, A y) {
  if (!eq(x, y)) {
    

    throw fail((msg != null ? msg + ": " : "") + /*sfu*/(y) + " != " + /*sfu*/(x));
  } else
    print("OK: " + /*sfu*/(x));
  return y;
}


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 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 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(Object a, Object b) {
  if (a == null) return b == null ? 0 : -1;
  if (b == null) return 1;
  return ((Comparable) a).compareTo(b);
}
static File programDir_mine; // set this to relocate program's data

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

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

static File programDir(String snippetID, String subPath) {
  return new File(programDir(snippetID), subPath);
}
static Throwable getException(Runnable r) {
  try {
    callF(r);
    return null;
  } catch (Throwable e) {
    return e;
  }
}
static String className(Object o) {
  return getClassName(o);
}
static int getScreenWidth() {
  return getScreenSize().width;
}
static int getScreenHeight() {
  return getScreenSize().height;
}
static String makeFrame_defaultIcon;
static boolean makeFrame_hideConsole;
static ThreadLocal < VF1 < JFrame > > makeFrame_post = new ThreadLocal();

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) {
  final VF1<JFrame> post = optParam(makeFrame_post);
  return swing(new F0<JFrame>() { JFrame get() { try { 
    if (getFrame(content) != null)
      return getFrame(setFrameTitle((Component) content, title));
    final JFrame frame = new JFrame(title);
    if (makeFrame_defaultIcon != null)
      setFrameIconLater(frame, makeFrame_defaultIcon);
    _initFrame(frame);
    Component wrapped = wrap(content);
    if (wrapped != null)
      frame.getContentPane().add(wrapped);
    frame.setBounds(defaultNewFrameBounds());
    
    callF(post, frame);
    
    if (showIt)
      frame.setVisible(true);
    //callOpt(content, "requestFocus");
    //exitOnFrameClose(frame);
    
    if (showIt && makeFrame_hideConsole) {
      hideConsole();
      makeFrame_hideConsole = false;
    }
    
    return frame;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "if (getFrame(content) != null)\r\n      ret getFrame(setFrameTitle((Component) ..."; }});
}
static boolean frameTooSmall(JFrame frame) {
  return frame.getWidth() < 100 || frame.getHeight() < 50;
}
static void frameStandardSize(JFrame frame) {
  frame.setBounds(300, 100, 500, 400);
}
static void setFrameContents(final Component c, final Object contents) {
  { swing(new Runnable() {  public void run() { try { 
    JFrame frame = getFrame(c);
    frame.getContentPane().removeAll();
    frame.getContentPane().setLayout(new BorderLayout());
    frame.getContentPane().add(wrap(contents));
    revalidate(frame);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "JFrame frame = getFrame(c);\r\n    frame.getContentPane().removeAll();\r\n    fra..."; }}); }
}
static String or2(String a, String b) {
  return nempty(a) ? a : b;
}

static String or2(String a, String b, String c) {
  return or2(or2(a, b), c);
}
static void swingLater(long delay, final Object r) {
  javax.swing.Timer timer = new javax.swing.Timer(toInt(delay), actionListener(wrapAsActivity(r)));
  timer.setRepeats(false);
  timer.start();
}

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

// PersistableThrowable doesn't hold GC-disturbing class references in backtrace
static volatile PersistableThrowable lastException_lastException;

static PersistableThrowable lastException() {
  return lastException_lastException;
}

static void lastException(Throwable e) {
  lastException_lastException = persistableThrowable(e);
}
static Map emptyMap() {
  return new HashMap();
}
// If you change this, also change DiskSnippetCache_fileToLibID
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(dataSnippetLink(snippetID));
    print("Loading library: " + hideCredentials(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));
      print("Loading library: " + hideCredentials(url));
      data = loadBinaryPage(url.openConnection());
    }
    print("Bytes loaded: " + data.length);
  } catch (FileNotFoundException e) {
    throw new IOException("Binary snippet #" + snippetID + " not found or not public");
  }
  return data;
}
static long fileSize(String path) { return getFileSize(path); }
static long fileSize(File f) { return getFileSize(f); }

static File loadDataSnippetToFile(String snippetID) { try {
  snippetID = fsI(snippetID);
  File f = DiskSnippetCache_file(parseSnippetID(snippetID));
  List<URL> urlsTried = new ArrayList();
  List<Throwable> errors = new ArrayList();
  try {
    URL url = addAndReturn(urlsTried, new URL(dataSnippetLink(snippetID)));
    print("Loading library: " + hideCredentials(url));
    try {
      loadBinaryPageToFile(openConnection(url), f);
      if (fileSize(f) == 0) throw fail();
    } catch (Throwable e) {
      errors.add(e);
      url = addAndReturn(urlsTried, new URL("http://data.tinybrain.de/blobs/"
        + psI(snippetID)));
      print("Trying other server: " + hideCredentials(url));
      loadBinaryPageToFile(openConnection(url), f);
      print("Got bytes: " + fileSize(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);
    errors.add(e);
    throw fail("Binary snippet " + snippetID + " not found or not public. URLs tried: " + allToString(urlsTried) + ", errors: " + allToString(errors));
  }
  return f;
} catch (Exception __e) { throw rethrow(__e); } }
static byte[] isGIF_magic = bytesFromHex("47494638"); // Actual signature is longer, but we're lazy

static boolean isGIF(byte[] data) {
  return byteArrayStartsWith(data, isGIF_magic);
}

static boolean isGIF(File f) {
  return isGIF(loadBeginningOfBinaryFile(f, l(isGIF_magic)));
}
static <A> void setVar(IVar<A> v, A value) {
  if (v != null) v.set(value);
}


static <A, B> LinkedHashMap<A, B> asLinkedHashMap(Map<A, B> map) {
  if (map instanceof LinkedHashMap) return (LinkedHashMap) map;
  LinkedHashMap<A,B> m = new LinkedHashMap();
  if (map != null) synchronized(collectionMutex(map)) {
    m.putAll(map);
  }
  return m;
}
static File userDir() {
  return new File(userHome());
}

static File userDir(String path) {
  return new File(userHome(), path);
}
static boolean possibleMD5(String s) { return isMD5(s); }
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 (ClassNotFoundException e) {
    return null; // could optimize this
  }
}
static File loadLibrary(String snippetID) {
  return loadBinarySnippet(snippetID);
}
static void printException(Throwable e) {
  printStackTrace(e);
}
static void addActionListener(JTextField tf, final Runnable action) {
  onEnter(tf, action);
}

static void addActionListener(final JComboBox cb, final Runnable action) {
  if (cb != null) { swing(new Runnable() {  public void run() { try { 
    cb.addActionListener(actionListener(action));
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "cb.addActionListener(actionListener(action));"; }}); }
}

static void addActionListener(final AbstractButton b, final Runnable action) {
  if (b != null) { swing(new Runnable() {  public void run() { try { 
    b.addActionListener(actionListener(action));
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "b.addActionListener(actionListener(action));"; }}); }
}
static String selectedItem(JList l) {
  return getSelectedItem(l);
}

static String selectedItem(JComboBox cb) {
  return getSelectedItem(cb);
}
static boolean standardFunctionAlwaysReturnsVoid(String name) {
  return tok_staticFunctionAlwaysReturnsVoid(javaTok(textOfStandardFunction_cached(name)), name);
}
static List<String> reTok(List<String> tok) {
  replaceCollection(tok, javaTok(tok));
  return tok;
}

static List<String> reTok(List<String> tok, int i) {
  return reTok(tok, i, i+1);
}

static List<String> reTok(List<String> tok, int i, int j) {
  // extend i to an "N" token
  // and j to "C" (so j-1 is an "N" token)
  i = i & ~1;
  j = j | 1;
  
  List<String> t = javaTok(join(subList(tok, i, j)));
  replaceListPart(tok, i, j, t);
  
  // fallback to safety
  // reTok(tok);
  
  return tok;
}

static void tokPrepend(List<String> tok, int i, String s) {
  tok.set(i, s + tok.get(i));
}
static void tokAppend(List<String> tok, int i, String s) {
  tok.set(i, tok.get(i)+s);
}
static boolean transpileRaw_silent = true;
static boolean transpileRaw_useDiskCache;


static String transpileRaw(String mainJava) {
  return (String) call(dm_transpiler(), "transpileRaw", mainJava, false, transpileRaw_useDiskCache);
}



static Class veryQuickJava_finish(String src, List<String> libs) {
  libs = cloneList(libs);
  src = findTranslators2(src, libs);
  //print("Libs found: " + struct(libs));
  
  String dehlibs = join(" ", libs);
  File bytecode = null;
  bytecode = javaCompile_overInternalBot(src, dehlibs);

  return hotwireCore(concatLists(ll(bytecode), loadLibraries(libs)));
}
static char lastChar(String s) {
  return empty(s) ? '\0' : s.charAt(l(s)-1);
}
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 String dropLast(String s, int n) {
  return substring(s, 0, l(s)-n);
}

static String dropLast(int n, String s) {
  return dropLast(s, n);
}

  static Method findMethod(Object o, String method, Object... args) {
    try {
      if (o == null) return null;
      if (o instanceof Class) {
        Method m = findMethod_static((Class) o, method, args, false);
        if (m == null) return null;
        m.setAccessible(true);
        return m;
      } else {
        Method m = findMethod_instance(o, method, args, false);
        if (m == null) return null;
        m.setAccessible(true);
        return m;
      }
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }

  static Method findMethod_static(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 || !findMethod_checkArgs(m, args, debug))
          continue;

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

  static Method findMethod_instance(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) && findMethod_checkArgs(m, args, debug))
          return m;
      }
      c = c.getSuperclass();
    }
    return null;
  }

  static boolean findMethod_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 HashMap<Set<String>, Class> loadFunctions_cache = new HashMap();
static Lock loadFunctions_cached_lock = lock();

static boolean loadFunctions_preferDiskCache; // Note: This may use outdated versions of standard functions

static Class loadFunctions_cached(String... functions) {
  return loadFunctions_cached(asList(functions));
}

static Class loadFunctions_cached(Collection<String> functions) {
  TreeSet<String> functionSet = new TreeSet<String>(functions);
  Lock __139 = loadFunctions_cached_lock; lock(__139); try {
  Class c = loadFunctions_cache.get(functionSet);
  if (c != null) return c;
  String cached = getTranspiledStandardFunctionsIfCached(functionSet);
  String transpilation = null;
  // TODO: make sure we're using an up-to-date transpiler too
  if (cached != null && (loadFunctions_preferDiskCache || standardFunctionsCacheUpToDate(functionSet)))
    transpilation = cached;
  if (transpilation != null) {
    // TODO: LIBS
    print("Loading " + joinWithPlus(functionSet));
    c = veryQuickJava_finish(transpilation, emptyList());
  }
  
  if (c == null) c = loadFunctions(functionSet);
  
  loadFunctions_cache.put(functionSet, c);
  assertNotNull(loadFunctions_cache.get(functionSet));
  return c;
} finally { unlock(__139); } }
static boolean preciseCall_debug;

static Object preciseCall(Object o, String method, Object... args) { try {
  if (o instanceof Class) {
    _MethodCache cache = callOpt_getCache(((Class) o));
    List<Method> methods = cache.cache.get(method);
    //L<Method> methods = findMethodsNamed2(o, method, true);
    Lowest<Method> best = new Lowest();
    if (methods != null) for (Method m : methods) {
      { if (!(isStaticMethod(m))) continue; }
      int score = methodApplicabilityScore(m, args);
      if (score < Integer.MAX_VALUE) {
        if (preciseCall_debug)
          print("Method score: " + m + " " + score);
        best.put(m, score);
      }
    }
    Method m = best.get();
    if (m == null) throw fail("No suitable method found: " + methodSignature(method, args));
    return invokeMethod(m, null, args);
  } else
    throw todo();
} catch (Exception __e) { throw rethrow(__e); } }

static Object evalJava_main(String main) {
  return callCalc(evalJava_prep2(main));
}
static CloseableIterableIterator emptyCloseableIterableIterator_instance = new CloseableIterableIterator() {
  public Object next() { throw fail(); }
  public boolean hasNext() { return false; }
};

static <A> CloseableIterableIterator<A> emptyCloseableIterableIterator() {
  return emptyCloseableIterableIterator_instance; 
}
static boolean ewic(String a, String b) {
  return endsWithIgnoreCase(a, b);
}


static boolean ewic(String a, String b, Matches m) {
  return endsWithIgnoreCase(a, b, m);
}

static CloseableIterableIterator<String> linesFromReader(Reader r) {
  final BufferedReader br = bufferedReader(r);
  return iteratorFromFunction_f0_autoCloseable(new F0<String>() { String get() { try {  return readLineFromReaderWithClose(br);  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret readLineFromReaderWithClose(br);"; }}, _wrapIOCloseable(r));
}
static BufferedReader utf8bufferedReader(InputStream in) { try {
  return bufferedReader(_registerIOWrap(new InputStreamReader(in, "UTF-8"), in));
} catch (Exception __e) { throw rethrow(__e); } }

static BufferedReader utf8bufferedReader(File f) { try {
  return utf8bufferedReader(newFileInputStream(f));
} catch (Exception __e) { throw rethrow(__e); } }
static GZIPInputStream newGZIPInputStream(File f) {
  return gzInputStream(f);
}

static GZIPInputStream newGZIPInputStream(InputStream in) {
  return gzInputStream(in);
}
static void _registerIO(Object object, String path, boolean opened) {
}
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<? extends Collection<A>> lists) {
  List<A> l = new ArrayList();
  for (Collection<A> list : lists)
    if (list != null)
      l.addAll(list);
  return l;
}

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 sameSnippetID(String a, String b) {
  if (!isSnippetID(a) || !isSnippetID(b)) return false;
  return parseSnippetID(a) == parseSnippetID(b);
}
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 File javaxDataDir(String... subs) {
  return newFile(javaxDataDir(), subs);
}
static volatile String caseID_caseID;

static String caseID() { return caseID_caseID; }

static void caseID(String id) {
  caseID_caseID = id;
}
static String programTitle() {
  return getProgramName();
}
static <A> A optParam(ThreadLocal<A> tl, A defaultValue) {
  return optPar(tl, defaultValue);
}

static <A> A optParam(ThreadLocal<A> tl) {
  return optPar(tl);
}

static <A> A optParam(Object[] opt, String name, A defaultValue) {
  if (!even(l(opt))) throw fail("Odd parameter length");
  for (int i = 0; i < l(opt); i += 2)
    if (eq(opt[i], name))
      return (A) opt[i+1];
  return defaultValue;
}

static <A> A optParam(Object[] opt, String name) {
  return optParam(opt, name, null);
}
static void _initFrame(JFrame f) {
  myFrames_list.put(f, Boolean.TRUE);
  standardTitlePopupMenu(f);
}
static Rectangle defaultNewFrameBounds_r = new Rectangle(300, 100, 500, 400);

static Rectangle defaultNewFrameBounds() {
  return swing(new F0<Rectangle>() { Rectangle get() { try { 
    defaultNewFrameBounds_r.translate(60, 20);
    if (!screenRectangle().contains(defaultNewFrameBounds_r))
      defaultNewFrameBounds_r.setLocation(30+random(30), 20+random(20));
    return new Rectangle(defaultNewFrameBounds_r);
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "defaultNewFrameBounds_r.translate(60, 20);\r\n    if (!screenRectangle().contai..."; }});
}
static void hideConsole() {
  final JFrame frame = consoleFrame();
  if (frame != null) {
    autoVMExit();
    swingLater(new Runnable() {  public void run() { try { 
      frame.setVisible(false);
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "frame.setVisible(false);"; }});
  }
}
static File getGlobalCache() {
  File file = new File(javaxCachesDir(), "Binary Snippets");
  file.mkdirs();
  return file;
}

/** writes safely (to temp file, then rename) */
public static byte[] saveBinaryFile(String fileName, byte[] contents) { try {
  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);
    
  vmBus_send("wroteFile", file);
  return contents;
} catch (Exception __e) { throw rethrow(__e); } }

static byte[] saveBinaryFile(File fileName, byte[] contents) {
  return saveBinaryFile(fileName.getPath(), contents);
}
static String dataSnippetLink(String snippetID) {
  long id = parseSnippetID(snippetID);
  if (id >= 1100000 && id < 1200000)
    return imageServerURL() + id;
  if (id >= 1400000 && id < 1500000)
    return "http://butter.botcompany.de:8080/files/" + id + "?_pass=" + muricaPassword();
  if (id >= 1200000 && id < 1300000) { // Woody files, actually
    String pw = muricaPassword();
    if (empty(pw)) throw fail("Please set 'murica password by running #1008829");
    return "http://butter.botcompany.de:8080/1008823/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 ThreadLocal<Map<String, List<String>>> loadBinaryPage_responseHeaders = new ThreadLocal();
static ThreadLocal<Map<String, String>> loadBinaryPage_extraHeaders = new ThreadLocal();

static byte[] loadBinaryPage(String url) { try {
  print("Loading " + url);
  return loadBinaryPage(loadPage_openConnection(new URL(url)));
} catch (Exception __e) { throw rethrow(__e); } }

static byte[] loadBinaryPage(URLConnection con) { try {
  Map<String, String> extraHeaders = getAndClearThreadLocal(loadBinaryPage_extraHeaders);
  setHeaders(con);
  for (String key : keys(extraHeaders))
    con.setRequestProperty(key, extraHeaders.get(key));
  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();
  loadBinaryPage_responseHeaders.set(con.getHeaderFields());
  long len = 0;
  try { len = con.getContentLength/*Long*/(); } 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 <B, A extends B> A addAndReturn(Collection<B> c, A a) {
  if (c != null) c.add(a);
  return a;
}
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));
  try {
    InputStream inputStream = con.getInputStream();
    long len = 0;
    try { len = con.getContentLength/*Long*/(); } catch (Throwable e) { printStackTrace(e); }
    String pat = "  {*}" + (len != 0 ? "/" + len : "") + " bytes loaded.";
    copyStreamWithPrints(inputStream, buf, pat);
    inputStream.close();
    buf.close();
    file.delete();
    renameFile_assertTrue(ftemp, file);
  } finally {
    if (buf != null) buf.close();
  }
} 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 long psI(String snippetID) {
  return parseSnippetID(snippetID);
}
static List<String> allToString(Collection c) {
  List<String> l = new ArrayList();
  for (Object o : unnull(c)) l.add(str(o));
  return l;
}

static List<String> allToString(Object[] c) {
  List<String> l = new ArrayList();
  for (Object o : unnull(c)) l.add(str(o));
  return l;
}
static byte[] bytesFromHex(String s) {
  return hexToBytes(s);
}
static boolean byteArrayStartsWith(byte[] a, byte[] b) {
  if (a == null || b == null) return false;
  if (a.length < b.length) return false;
  for (int i = 0; i < b.length; i++)
    if (a[i] != b[i])
      return false;
  return true;
}
static byte[] loadBeginningOfBinaryFile(File file, int maxBytes) {
  return loadBinaryFilePart(file, 0, maxBytes);
}


static Map<JFrame, Boolean> myFrames_list = weakHashMap();

static List<JFrame> myFrames() {
  return swing(new F0<List<JFrame>>() { List<JFrame> get() { try {  return keysList(myFrames_list);  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret keysList(myFrames_list);"; }});
}

static boolean isMD5(String s) {
  return l(s) == 32 && isLowerHexString(s);
}
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 String classNameToVM(String name) {
  return name.replace(".", "$");
}
static JTextField onEnter(final JTextField tf, final Object action) {
  if (action == null || tf == null) return tf;
  tf.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { try {
    tf.selectAll();
    callF(action);
  } catch (Throwable __e) { messageBox(__e); }}});
  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, Object action) {
  list.addKeyListener(enterKeyListener(rCallOnSelectedListItem(list, action)));
  return list;
}

static JComboBox onEnter(final JComboBox cb, final Object action) {
  { swing(new Runnable() {  public void run() { try { 
    if (cb.isEditable()) {
      JTextField text = (JTextField) cb.getEditor().getEditorComponent();
      onEnter(text, action);
    } else {
      cb.getInputMap().put(KeyStroke.getKeyStroke("ENTER"), "enter");
      cb.getActionMap().put("enter", abstractAction("", new Runnable() {  public void run() { try {  cb.hidePopup(); callF(action); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "cb.hidePopup(); callF(action);"; }}));
    }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (cb.isEditable()) {\r\n      JTextField text = (JTextField) cb.getEditor().g..."; }}); }
  return cb;
}

static JTable onEnter(final JTable table, final Object action) {  
  table.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT)
    .put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "Enter");
    
  table.getActionMap().put("Enter", new AbstractAction() {
    public void actionPerformed(ActionEvent e) {
      callF(action, table.getSelectedRow());
    }
  });
  return table;
}

/*static JTextArea onEnter(final JTextArea ta, fO action) {
  addKeyListener(ta, enterKeyListener(action));
  ret ta;
}*/

static JTextField onEnter(Object action, JTextField tf) {
  return onEnter(tf, action);
}
static String getSelectedItem(JList l) {
  return (String) l.getSelectedValue();
}

static String getSelectedItem(JComboBox cb) {
  return strOrNull(cb.getSelectedItem());
}
static boolean tok_staticFunctionAlwaysReturnsVoid(List<String> tok, String name) {
  Set<String> types = tok_returnTypesOfStaticFunction_uncleaned(tok, name);
  if (empty(types)) return false;
  for (String type : types)
    if (!containsOneOf(javaTokC(type), "void", "svoid")) return false;
  return true;
}
static String textOfStandardFunction_cached(String sfName) {
  return textOfStandardFunction(sfName);
}
static <A> void replaceCollection(Collection<A> dest, Collection<A> src) {
  dest.clear();
  dest.addAll(src);
}
static void replaceListPart(List l, int i, int j, List l2) {
  int j2 = i+l(l2);
  if (j2 == j)
    { copyListPart(l2, 0, l, i, l(l2)); return; }
  l.subList(i, j).clear();
  l.addAll(i, l2);
}
// probably better than findTranslators (uses tokens)
// removes invocations from src
static String findTranslators2(String src, List<String> libsOut) {
  return join(findTranslators2(javaTok(src), libsOut));
}

// modifies original tok
static List<String> findTranslators2(List<String> tok, List<String> libsOut) {
  int i;
  while ((i = jfind(tok, "!<int>")) >= 0) {
    setAdd(libsOut, tok.get(i+2));
    clearTokens(tok, i, i+3);
  }
  return tok;
}
static File javaCompile_overInternalBot(String src) {
  return javaCompile_overInternalBot(src, "");
}

// returns path to jar
static synchronized File javaCompile_overInternalBot(String src, String dehlibs) {
  return CompilerBot.compile(src, dehlibs);
}

static Class hotwireCore(List<File> files) { try {
  // make class loader
  JavaXClassLoader classLoader = hotwire_makeClassLoader(files);

  // load & return main class
  Class<?> theClass = classLoader.loadClass("main");
  
  setOpt(theClass, "__javax", getJavaX());
  if (getOpt(theClass, "programID") == null)
    setOpt(theClass, "programID", "#3999999");
  
  if (!_inCore())
    hotwire_copyOver(theClass);
  
  return theClass;
} catch (Exception __e) { throw rethrow(__e); } }
static List<File> loadLibraries(List<String> snippetIDs) {
  return map("loadLibrary", snippetIDs);
}
static String getTranspiledStandardFunctionsIfCached(TreeSet<String> functionSet) { try {
  File f = transpiledStandardFunctions_file(functionSet);
  //printFileStatus(f);
  return loadTextFile(f);
} catch (Throwable __e) { return null; } }
static boolean standardFunctionsCacheUpToDate(TreeSet<String> functionSet) {
  File f = transpiledStandardFunctions_file(functionSet);
  long date = recommendedTranspilationDateForStandardFunctions(functionSet);
  return date != 0 && f.lastModified() >= date;
}
static String joinWithPlus(Collection<String> c) {
  return join("+", c);
}

static String joinWithPlus(String... c) {
  return join("+", c);
}

static boolean loadFunctions_debug;
static Object loadFunctions_veryQuickJava;

static Class loadFunctions(String... functions) {
  return loadFunctions(asList(functions));
}

static Class loadFunctions(Collection<String> functions) {
  print("Compiling " + joinWithPlus(functions));
  TreeSet<String> functionSet = new TreeSet<String>(functions);
  StringBuilder buf = new StringBuilder();
  for (String s : functionSet)
    buf.append("please include function " + assertIdentifier(s) + ".\n");
  long time = sysNow();
  Class c;
  if (loadFunctions_veryQuickJava != null)
    c = (Class) callF(loadFunctions_veryQuickJava, str(buf));
  else {
    veryQuickJava_transpiled.set(""); // request transpilation
    c = veryQuickJava(str(buf));
    saveTranspiledStandardFunctions(functionSet, getAndClearThreadLocal(veryQuickJava_transpiled));
  }
  if (loadFunctions_debug)
    done2_always(time, "loadFunctions: " + join(" ", functions));
  return c;
}
static boolean isStaticMethod(Method m) {
  return methodIsStatic(m);
}
// return Int.MAX_VALUE if not applicable
// Lower score is better
static int methodApplicabilityScore(Method m, Object[] args) {
   Class<?>[] types = m.getParameterTypes();
   if (types.length != args.length) return Integer.MAX_VALUE;
   int score = 0;
   for (int i = 0; i < types.length; i++) {
     Object a = args[i];
     Class c = types[i];
     if (a == null) ++score;
     else if (c == a.getClass()) {} // perfect match
     else if (isInstanceX(c, a)) ++score;
     else return Integer.MAX_VALUE;
  }
  return score;
}
static String methodSignature(String name, Object[] args) {
  StringBuilder buf = new StringBuilder(name + "(");
  for (int i = 0; i < l(args); i++) {
    if (i != 0) buf.append(", ");
    buf.append(getClassName(args[i]));
  }
  buf.append(")");
  return str(buf);
}
  static RuntimeException todo() {
    throw new RuntimeException("TODO");
  }
  
  static RuntimeException todo(String msg) {
    throw new RuntimeException("TODO: " + msg);
  }


// flag is per thread, cache is per program (in-memory cache of JavaX source -> loaded Class)
static ThreadLocal<Boolean> evalJava_prep2_useCacheInThread = new ThreadLocal();
static volatile boolean evalJava_prep2_useCache;

// cached main classes, used only when you enable it
static Map<String, Object> evalJava_prep2_cache = synchronizedMRUCache(100);

static Object evalJava_prep2(String main) {
  boolean _useCache = evalJava_prep2_useCache || isTrue(evalJava_prep2_useCacheInThread.get());
  if (_useCache) {
    Object obj = evalJava_prep2_cache.get(main);
    if (obj != null) return obj;
  }
  Object obj = veryQuickJava(main);
  if (_useCache)
    evalJava_prep2_cache.put(main, obj);
  makeDependent(obj);
  setOpt(obj, "getProgramName_cache", "User Code");
  return obj;
}


static boolean endsWithIgnoreCase(String a, String b) {
  int la = l(a), lb = l(b);
  return la >= lb && regionMatchesIC(a, la-lb, b, 0, lb);
}


static boolean endsWithIgnoreCase(String a, String b, Matches m) {
  if (!endsWithIgnoreCase(a, b)) return false;
  m.m = new String[] { substring(a, 0, l(a)-l(b)) };
  return true;
}

static BufferedReader bufferedReader(Reader r) {
  return r instanceof BufferedReader ? (BufferedReader) r : _registerIOWrap(new BufferedReader(r), r);
}
static <A> CloseableIterableIterator<A> iteratorFromFunction_f0_autoCloseable(final F0<A> f, final AutoCloseable closeable) {
  class IFF2 extends CloseableIterableIterator<A> {
    A a;
    boolean done;
    
    public boolean hasNext() {
      getNext();
      return !done;
    }
    
    public A next() {
      getNext();
      if (done) throw fail();
      A _a = a;
      a = null;
      return _a;
    }
    
    void getNext() {
      if (done || a != null) return;
      a = f.get();
      done = a == null;
    }
    
    public void close() throws Exception {
      if (closeable != null) closeable.close();
    }
  };
  return new IFF2();
}
static String readLineFromReaderWithClose(BufferedReader r) { try {
  String s = r.readLine();
  if (s == null) r.close();
  return s;
} catch (Exception __e) { throw rethrow(__e); } }
static AutoCloseable _wrapIOCloseable(final AutoCloseable c) {
  return c == null ? null : new AutoCloseable() { public String toString() { return "c.close();\r\n    _registerIO(c, null, false);"; } public void close() throws Exception { 
    c.close();
    _registerIO(c, null, false);
  }};
}

static <A> A _registerIOWrap(A wrapper, Object wrapped) {
  return wrapper;
}
static FileInputStream newFileInputStream(File path) throws IOException {
  return newFileInputStream(path.getPath());
}

static FileInputStream newFileInputStream(String path) throws IOException {
  FileInputStream f = new FileInputStream(path);
  _registerIO(f, path, true);
  return f;
}
static int gzInputStream_defaultBufferSize = 65536;

static GZIPInputStream gzInputStream(File f) { try {
  return gzInputStream(new FileInputStream(f));
} catch (Exception __e) { throw rethrow(__e); } }

static GZIPInputStream gzInputStream(File f, int bufferSize) { try {
  return gzInputStream(new FileInputStream(f), bufferSize);
} catch (Exception __e) { throw rethrow(__e); } }

static GZIPInputStream gzInputStream(InputStream in) {
  return gzInputStream(in, gzInputStream_defaultBufferSize);
}

static GZIPInputStream gzInputStream(InputStream in, int bufferSize) { try {
  return _registerIOWrap(new GZIPInputStream(in, gzInputStream_defaultBufferSize), in);
} catch (Exception __e) { throw rethrow(__e); } }
static int lastIndexOf(String a, String b) {
  return a == null || b == null ? -1 : a.lastIndexOf(b);
}

static int lastIndexOf(String a, char b) {
  return a == null ? -1 : a.lastIndexOf(b);
}
static String getProgramName_cache;

static String getProgramName() {
  Lock __830 = downloadLock(); lock(__830); try {
  if (getProgramName_cache == null)
    getProgramName_cache = getSnippetTitleOpt(programID());
  return getProgramName_cache;
} finally { unlock(__830); } }

static void _onLoad_getProgramName() {
  startThread(new Runnable() {  public void run() { try {   getProgramName(); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "getProgramName();"; }});
}
static <A> A optPar(ThreadLocal<A> tl, A defaultValue) {
  A a = tl.get();
  if (a != null) {
    tl.set(null);
    return a;
  }
  return defaultValue;
}

static <A> A optPar(ThreadLocal<A> tl) {
  return optPar(tl, null);
}

static <A> A optPar(Object[] params, String name) {
  return optParam(params, name);
}

static <A> A optPar(Object[] params, String name, A defaultValue) {
  return optParam(params, name, defaultValue);
}
static boolean even(int i) {
  return (i & 1) == 0;
}

static boolean even(long i) {
  return (i & 1) == 0;
}
static void standardTitlePopupMenu(final JFrame frame) {
  // standard right-click behavior on titles
  if (isSubstanceLAF())
    titlePopupMenu(frame,
      new VF1<JPopupMenu>() { public 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)"; }}));
        //addMenuItem(menu, "Bigger fonts", f swingBiggerFonts);
        //addMenuItem(menu, "Smaller fonts", f swingSmallerFonts);
       } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "bool alwaysOnTop = frame.isAlwaysOnTop();\r\n        menu.add(jmenuItem(\"Restar..."; }});
}

static Rectangle screenRectangle() {
  return new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
}

static Random random_random = new Random();

static int random(int n) {
  return n <= 0 ? 0 : random_random.nextInt(n);
}

static double random(double max) {
  return random()*max;
}

static double random() {
  return random_random.nextInt(100001)/100000.0;
}

static double random(double min, double max) {
  return min+random()*(max-min);
}

// min <= value < max
static int random(int min, int max) {
  return min+random(max-min);
}

static <A> A random(List<A> l) {
  return oneOf(l);
}

static <A> A random(Collection<A> c) {
  if (c instanceof List) return random((List<A>) c);
  int i = random(l(c));
  return collectionGet(c, i);
}
static JFrame consoleFrame() {
  return (JFrame) getOpt(get(getJavaX(), "console"), "frame");
}
static void autoVMExit() {
  call(getJavaX(), "autoVMExit");
}
static String imageServerURL() {
  return or2(trim(loadTextFile(javaxDataDir("image-server-url.txt"))), "http://botcompany.de/images/raw/");
}
static volatile boolean muricaPassword_pretendNotAuthed;

static String muricaPassword() {
  if (muricaPassword_pretendNotAuthed) return null;
  return trim(loadTextFile(muricaPasswordFile()));
}
static int loadPage_defaultTimeout = 60000;
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 = 1; //60; // seconds
static ThreadLocal<Boolean> loadPage_silent = new ThreadLocal();
static volatile int loadPage_forcedTimeout; // ms
static ThreadLocal<Integer> loadPage_forcedTimeout_byThread = new ThreadLocal(); // ms
static ThreadLocal<Map<String, List<String>>> loadPage_responseHeaders = new ThreadLocal();
static ThreadLocal<Map<String, String>> loadPage_extraHeaders = 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 {
  if (url.getProtocol().equals("https"))
    disableCertificateValidation();
    
  if (!networkAllowanceTest(str(url))) throw fail("Not allowed: " + url);
    
  IOException e = null;
  for (int tries = 0; tries < loadPage_retries; tries++)
    try {
      URLConnection con = loadPage_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(exceptionToStringShort(e));
      if (tries < loadPage_retries-1) sleepSeconds(1);
    }
  throw e;
} catch (Exception __e) { throw rethrow(__e); } }

static String loadPage_preprocess(String url) {  
  if (url.startsWith("tb/")) // don't think we use this anymore
    url = tb_mainServer() + "/" + url;
  if (url.indexOf("://") < 0)
    url = "http://" + url;
  return url;
}

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

static String loadPage(URL url) {
  return loadPage(url.toExternalForm());
}

static String loadPage(URLConnection con, URL url) throws IOException {
  return loadPage(con, url, true);
}

static String loadPage(URLConnection con, URL url, boolean addHeaders) throws IOException {
  Map<String, String> extraHeaders = getAndClearThreadLocal(loadPage_extraHeaders);
  if (addHeaders) try {
    if (!loadPage_anonymous)
      setHeaders(con);
    if (loadPage_allowGzip)
      con.setRequestProperty("Accept-Encoding", "gzip");
    con.setRequestProperty("X-No-Cookies", "1");
    for (String key : keys(extraHeaders))
      con.setRequestProperty(key, extraHeaders.get(key));
  } catch (Throwable e) {} // fails if within doPost
  
  vm_generalSubMap("URLConnection per thread").put(currentThread(), con);
  loadPage_responseHeaders.set(con.getHeaderFields());
  InputStream in = null;
  try {
    in = con.getInputStream();
  //vm_generalSubMap("InputStream per thread").put(currentThread(), in);
  if (loadPage_debug)
    print("Put stream in map: " + currentThread());
    String contentType = con.getContentType();
    if (contentType == null) {
      //printStruct("Headers: ", con.getHeaderFields());
      throw new IOException("Page could not be read: " + hideCredentials(url));
    }
    //print("Content-Type: " + contentType);
    String charset = loadPage_charset == null ? null : loadPage_charset.get();
    if (charset == null) charset = loadPage_guessCharset(contentType);
    
    if ("gzip".equals(con.getContentEncoding())) {
      if (loadPage_debug)
        print("loadPage: Using gzip.");
      in = newGZIPInputStream(in);
    }
    Reader r;
    try {
      r = new InputStreamReader(in, unquote(charset));
    } catch (UnsupportedEncodingException e) {
      print(toHex(utf8(charset)));
      throw e;
    }
    
    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 {
    if (loadPage_debug)
      print("loadPage done");
    //vm_generalSubMap("InputStream per thread").remove(currentThread());
    vm_generalSubMap("URLConnection per thread").remove(currentThread());
    if (in != null) in.close();
  }
}

static String loadPage_guessCharset(String contentType) {
  Matcher m = regexpMatcher("text/[a-z]+;\\s*charset=([^\\s]+)\\s*", 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");
  return or(match, "UTF-8");
}

static URLConnection loadPage_openConnection(URL url) {
  URLConnection con = openConnection(url);
  int timeout = toInt(loadPage_forcedTimeout_byThread.get());
  if (timeout == 0) timeout = loadPage_forcedTimeout;
  if (timeout != 0)
    setURLConnectionTimeouts(con, loadPage_forcedTimeout);
  else
    setURLConnectionDefaultTimeouts(con, loadPage_defaultTimeout);
  return con;
}
static <A> A getAndClearThreadLocal(ThreadLocal<A> tl) {
  A a = tl.get();
  tl.set(null);
  return a;
}
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 <A, B> Set<A> keys(Map<A, B> map) {
  return map == null ? new HashSet() : map.keySet();
}

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






static <A> A println(A a) {
  return print(a);
}
public static File mkdirsFor(File file) {
  return mkdirsForFile(file);
}

static void copyStreamWithPrints(InputStream in, OutputStream out, String pat) { try {
  byte[] buf = new byte[65536];
  int total = 0;
  while (true) {
    int n = in.read(buf);
    if (n <= 0) return;
    out.write(buf, 0, n);
    if ((total+n)/100000 > total/100000)
      print(pat.replace("{*}", str(roundDownTo(total, 100000))));
    total += n;
  }
} catch (Exception __e) { throw rethrow(__e); } }
static void renameFile_assertTrue(File a, File b) { try {
  if (!a.exists()) throw fail("Source file not found: " + f2s(a));
  if (b.exists()) throw fail("Target file exists: " + f2s(b));
  mkdirsForFile(b);
  
  
  if (!a.renameTo(b))
    throw fail("Can't rename " + f2s(a) + " to " + f2s(b));
  
} catch (Exception __e) { throw rethrow(__e); } }
static byte[] hexToBytes(String s) {
  if (odd(l(s))) throw fail("Hex string has odd length: " + quote(shorten(10, s)));
  int n = l(s) / 2;
  byte[] bytes = new byte[n];
  for (int i = 0; i < n; i++) {
    int a = parseHexChar(s.charAt(i*2));
    int b = parseHexChar(s.charAt(i*2+1));
    if (a < 0 || b < 0)
      throw fail("Bad hex byte: " + quote(substring(s, i*2, i*2+2)) + " at " + i*2 + "/" + l(s));
    bytes[i] = (byte) ((a << 4) | b);
  }
  return bytes;
}
static byte[] loadBinaryFilePart(File file, long start, long end) { try {
  RandomAccessFile raf = new RandomAccessFile(file, "r");
  int n = toInt(min(raf.length(), end-start));
  byte[] buffer = new byte[n];
  try {
    raf.seek(start);
    raf.readFully(buffer, 0, n);
    return buffer;
  } finally {
    raf.close();
  }
} catch (Exception __e) { throw rethrow(__e); } }


static void restart() {
  Object j = getJavaX();
  call(j, "cleanRestart", get(j, "fullArgs"));
}
static void duplicateThisProgram() {
  nohupJavax(trim(programID() + " " + smartJoin((String[]) get(getJavaX(), "fullArgs"))));
}
static void showConsole() {
  callOpt(get(javax(), "console"), "showConsole");
}
static <A, B> Map<A, B> weakHashMap() {
  return newWeakHashMap();
}
static <A, B> List<A> keysList(Map<A, B> map) {
  return cloneListSynchronizingOn(keys(map), map);
}
static boolean isLowerHexString(String s) {
  for (int i = 0; i < l(s); i++) {
    char c = s.charAt(i);
    if (c >= '0' && c <= '9' || c >= 'a' && c <= 'f') {
      // ok
    } else
      return false;
  }
  return true;
}
static KeyListener enterKeyListener(final Object action) {
  return new KeyAdapter() {
    public void keyPressed(KeyEvent ke) {
      if (ke.getKeyCode() == KeyEvent.VK_ENTER)
        pcallF(action);
    }
  };
}
static Runnable rCallOnSelectedListItem(final JList list, final Object action) {
  return new Runnable() {  public void run() { try {  pcallF(action, getSelectedItem(list)) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "pcallF(action, getSelectedItem(list))"; }};
}
static String strOrNull(Object o) {
  return o == null ? null : str(o);
}
static Set<String> tok_returnTypesOfStaticFunction_uncleaned(List<String> tok, String functionName) {
  List<List<String>> funcs = findFullFunctionDefs(tok, true);
  TreeSet<String> out = new TreeSet();
  for (List<String> tokF : funcs) {
    int i = indexOfAny(tokF, 0, "(", "{");
    if (i < 0) continue;
    String fname = get(tokF, i-2);
    if (!eq(fname, functionName)) continue;
    out.add(joinSubList(tokF, 1, i-3));
  }
  return out;
}
static <A> boolean containsOneOf(Collection<A> l, A... x) {
  for (A a : unnull(l))
    if (eqOneOf(a, x))
      return true;
  return false;
}

static <A> boolean containsOneOf(Collection<A> l, Set<A> set) {
  if (set == null) return false;
  for (A a : unnull(l))
    if (set.contains(a))
      return true;
  return false;
}

static boolean containsOneOf(String s, String... x) {
  for (String o : x)
    if (contains(s, o)) return true;
  return false;
}
static String textOfStandardFunction(String sfName) {
  return loadSnippet_cached(stdFunctions_cached().get(sfName));
}
static <A, B extends A> void copyListPart(List<B> a, int i1, List<A> b, int i2, int n) {
  if (a == null || b == null) return;
  for (int i = 0; i < n; i++)
    b.set(i2+i, a.get(i1+i));
}
static int jfind(String s, String in) {
  return jfind(javaTok(s), in);
}

static int jfind(List<String> tok, String in) {
  return jfind(tok, 1, in);
}

static int jfind(List<String> tok, int startIdx, String in) {
  return jfind(tok, startIdx, in, null);
}

static int jfind(List<String> tok, String in, Object condition) {
  return jfind(tok, 1, in, condition);
}

static int jfind(List<String> tok, int startIdx, String in, Object condition) {
  List<String> tokin = javaTok(in);
  jfind_preprocess(tokin);
  return jfind(tok, startIdx, tokin, condition);
}

// assumes you preprocessed tokin
static int jfind(List<String> tok, List<String> tokin) {
  return jfind(tok, 1, tokin);
}

static int jfind(List<String> tok, int startIdx, List<String> tokin) {
  return jfind(tok, startIdx, tokin, null);
}

static int jfind(List<String> tok, int startIdx, List<String> tokin, Object condition) {
  return findCodeTokens(tok, startIdx, false, toStringArray(codeTokensOnly(tokin)), condition);
}

static List<String> jfind_preprocess(List<String> tok) {
  for (String type : litlist("quoted", "id", "int"))
    replaceSublist(tok, ll("<", "", type, "", ">"), ll("<" + type + ">"));
  replaceSublist(tok, ll("\\", "", "*"), ll("\\*"));
  return tok;
}
static <A> boolean setAdd(Collection<A> c, A a) {
  if (c == null || c.contains(a)) return false;
  c.add(a);
  return true;
}
static void clearTokens(List<String> tok) {
  clearAllTokens(tok);
}

static void clearTokens(List<String> tok, int i, int j) {
  clearAllTokens(tok, i, j);
}


static JavaXClassLoader hotwire_makeClassLoader(List<File> files) {
  return new JavaXClassLoader(null, files);
}
static File transpiledStandardFunctions_file(TreeSet<String> functionSet) {
  String name = uniqueFileNameUsingMD5_80_v2(join("+", functionSet));
  File dir = javaxCachesDir("Transpiled Standard Functions");
  saveTextFileUnlessExists(newFile(dir, name + ".functions"), lines(functionSet));
  return newFile(dir, name + ".java");
}
static String loadTextFile(String fileName) {
  return loadTextFile(fileName, null);
}

static String loadTextFile(File f, String defaultContents) { try {
  checkFileNotTooBigToRead(f);
  if (f == null || !f.exists()) return defaultContents;

  FileInputStream fileInputStream = new FileInputStream(f);
  InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8");
  return loadTextFile(inputStreamReader);
} catch (Exception __e) { throw rethrow(__e); } }

public static String loadTextFile(File fileName) {
  return loadTextFile(fileName, null);
}

static String loadTextFile(String fileName, String defaultContents) {
  return fileName == null ? defaultContents : loadTextFile(newFile(fileName), defaultContents);
}

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 str(builder);
}
static long recommendedTranspilationDateForStandardFunctions(Collection<String> sfNames) {
  long date = 0;
  for (String name : sfNames) {
    long d = recommendedTranspilationDateForStandardFunction(name);
    if (d == 0) return 0; // unknown, retranspile
    date = max(date, d);
  }
  return date;
}
static String assertIdentifier(String s) {
  return assertIsIdentifier(s);
}
static void saveTranspiledStandardFunctions(TreeSet<String> functionSet, String transpiledSrc) {
  try {
    saveTextFile(transpiledStandardFunctions_file(functionSet), transpiledSrc);
  } catch (Throwable __e) { _handleException(__e); }
}
static long done2_always(long startTime, String desc) {
  long time = sysNow()-startTime;
  print(desc + " [" + time + " ms]");
  return time;
}

static long done2_always(String desc, long startTime) {
  return done2_always(startTime, desc);
}

static long done2_always(long startTime) {
  return done2_always(startTime, "");
}
static boolean methodIsStatic(Method m) {
  return (m.getModifiers() & Modifier.STATIC) != 0;
}
static <A, B> Map<A, B> synchronizedMRUCache(int maxSize) {
  return synchroMap(new MRUCache(maxSize));
}
static boolean regionMatchesIC(String a, int offsetA, String b, int offsetB, int len) {
  
  
    return a != null && a.regionMatches(true, offsetA, b, offsetB, len);
  
}
static Lock downloadLock_lock = fairLock();

static Lock downloadLock() {
  return downloadLock_lock;
}
static String getSnippetTitleOpt(String s) {
  return isSnippetID(s) ? getSnippetTitle(s) : s;
}
static boolean isSubstanceLAF() {
  return substanceLookAndFeelEnabled();
}
// menuMaker = voidfunc(JPopupMenu)
// return true if menu could be added
static boolean titlePopupMenu(final Component c, final Object menuMaker) {
  JComponent titleBar = getTitlePaneComponent(getPossiblyInternalFrame(c));
  if (titleBar == null)
    { print("Can't add title right click!"); return false; }
  else
    { componentPopupMenu(titleBar, menuMaker); return true; }
}
static boolean jmenuItem_newThreads;

static JMenuItem jmenuItem(final String text) {
  return jMenuItem(text, null);
}

static JMenuItem jmenuItem(final String text, final Object r) {
  return swing(new F0<JMenuItem>() { JMenuItem get() { try { 
    Pair<String, Integer> p = jmenu_autoMnemonic(text);
    JMenuItem mi = new JMenuItem(p.a);
    if (p.b != 0) mi.setMnemonic(p.b);
    mi.addActionListener(jmenuItem_newThreads
      ? actionListenerInNewThread(r)
      : actionListener(r));
    return mi;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "Pair<S, Int> p = jmenu_autoMnemonic(text);\r\n    JMenuItem mi = new JMenuItem(..."; }});
}
// r : runnable or voidfunc(bool)
static JCheckBoxMenuItem jCheckBoxMenuItem(String text, boolean checked, final Object r) {
  final JCheckBoxMenuItem mi = new JCheckBoxMenuItem(text, checked);
  addActionListener(mi, new Runnable() {  public void run() { try {  callF(r, isChecked(mi)) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "callF(r, isChecked(mi))"; }});
  return mi;
}
static void toggleAlwaysOnTop(JFrame frame) {
  frame.setAlwaysOnTop(!frame.isAlwaysOnTop());
}
static JMenuItem jMenuItem(final String text) {
  return jmenuItem(text);
}

static JMenuItem jMenuItem(String text, Object r) {
  return jmenuItem(text, r);
}
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 <A> A oneOf(List<A> l) {
  return l.isEmpty() ? null : l.get(new Random().nextInt(l.size()));
}

static char oneOf(String s) {
  return empty(s) ? '?' : s.charAt(random(l(s)));
}

static String oneOf(String... l) {
  return oneOf(asList(l));
}
static <A> A collectionGet(Collection<A> c, int idx) {
  if (c == null || idx < 0 || idx >= l(c)) return null;
  if (c instanceof List) return listGet((List<A>) c, idx);
  Iterator<A> it = c.iterator();
  for (int i = 0; i < idx; i++) if (it.hasNext()) it.next(); else return null;
  return it.hasNext() ? it.next() : null;
}
static File muricaPasswordFile() {
  return new File(javaxSecretDir(), "murica/muricaPasswordFile");
}
static boolean networkAllowanceTest(String url) {
  return isAllowed("networkAllowanceTest", url);
}
static final boolean loadPageThroughProxy_enabled = false;

static String loadPageThroughProxy(String url) {
  return null;
}
static String exceptionToStringShort(Throwable e) {
  lastException(e);
  e = getInnerException(e);
  String msg = hideCredentials(unnull(e.getMessage()));
  if (msg.indexOf("Error") < 0 && msg.indexOf("Exception") < 0)
    return baseClassName(e) + prependIfNempty(": ", msg);
  else
    return msg;
}
static void sleepSeconds(double s) {
  if (s > 0) sleep(round(s*1000));
}
static String tb_mainServer_default = "http://tinybrain.de:8080";
static Object tb_mainServer_override; // func -> S

static String tb_mainServer() {
  if (tb_mainServer_override != null) return (String) callF(tb_mainServer_override);
  return trim(loadTextFile(tb_mainServer_file(),
    tb_mainServer_default));
}

static File tb_mainServer_file() {
  return getProgramFile("#1001638", "mainserver.txt");
}

static boolean tb_mainServer_isDefault() {
  return eq(tb_mainServer(), tb_mainServer_default);
}
static <A> A printWithTime(A a) {
  print(hmsWithColons() + ": " + a);
  return a;
}
static Map vm_generalSubMap(Object name) {
  synchronized(get(javax(), "generalMap")) {
    Map map = (Map) ( vm_generalMap_get(name));
    if (map == null)
      vm_generalMap_put(name, map = synchroMap());
    return map;
  }
}

static String toHex(byte[] bytes) {
  return bytesToHex(bytes);
}

static String toHex(byte[] bytes, int ofs, int len) {
  return bytesToHex(bytes, ofs, len);
}

static byte[] utf8(String s) {
  return toUtf8(s);
}
static Matcher regexpMatcher(String pat, String s) {
  return compileRegexp(pat).matcher(unnull(s));
}
static URLConnection setURLConnectionTimeouts(URLConnection con, long timeout) {
  con.setConnectTimeout(toInt(timeout));
  con.setReadTimeout(toInt(timeout));
  if (con.getConnectTimeout() != timeout || con.getReadTimeout() != timeout)
    print("Warning: Timeouts not set by JDK.");
  return con;
}
static URLConnection setURLConnectionDefaultTimeouts(URLConnection con, long timeout) {
  if (con.getConnectTimeout() == 0) {
    con.setConnectTimeout(toInt(timeout));
    if (con.getConnectTimeout() != timeout)
      print("Warning: URL connect timeout not set by JDK.");
  }
  if (con.getReadTimeout() == 0) {
    con.setReadTimeout(toInt(timeout));
    if (con.getReadTimeout() != timeout)
      print("Warning: URL read timeout not set by JDK.");
  }
  return con;
}
static String getComputerID_quick() {
  return computerID();
}
static int roundDownTo(int x, int n) {
  return x/n*n;
}

static long roundDownTo(long x, long n) {
  return x/n*n;
}
static boolean odd(int i) {
  return (i & 1) != 0;
}

static boolean odd(long i) {
  return (i & 1) != 0;
}

static boolean odd(BigInteger i) { return odd(toInt(i)); }
static int parseHexChar(char c) {
  if (c >= '0' && c <= '9') return charDiff(c, '0');
  if (c >= 'a' && c <= 'f') return charDiff(c, 'a')+10;
  if (c >= 'A' && c <= 'F') return charDiff(c, 'A')+10;
  return -1;
}


static void nohupJavax(final String javaxargs) {
  startThread(new Runnable() {  public void run() { try {   call(hotwireOnce("#1008562"), "nohupJavax", javaxargs); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "call(hotwireOnce(\"#1008562\"), \"nohupJavax\", javaxargs);"; }});
}

static void nohupJavax(final String javaxargs, final String vmArgs) {
  startThread(new Runnable() {  public void run() { try {   call(hotwireOnce("#1008562"), "nohupJavax", javaxargs, vmArgs); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "call(hotwireOnce(\"#1008562\"), \"nohupJavax\", javaxargs, vmArgs);"; }});
}
// 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 <A> ArrayList<A> cloneListSynchronizingOn(Collection<A> l, Object mutex) {
  if (l == null) return new ArrayList();
  synchronized(mutex) {
    return new ArrayList<A>(l);
  }
}
static Set<String> findFullFunctionDefs_keywords = new HashSet(splitAtSpace("static svoid ssvoid ssynchronized sbool sS sO sL"));

// returns actual CNC
static List<List<String>> findFullFunctionDefs(List<String> tok, boolean topLevelOnly) {
  int n = l(tok);
  List < List < String > > functions = new ArrayList();
  for (int i = 1; i < n; i += 2) {
    String t = tok.get(i);
    if (topLevelOnly && eq(t, "{")) i = findEndOfBlock(tok, i)-1;
    else if (findFullFunctionDefs_keywords.contains(t)) {
      
      int j = i+2;
      while (j < n && !eqOneOf(tok.get(j), ";", "=", "(", "{"))
        j += 2;
      if ((eqGet(tok, j, "(") || eq(t, "svoid") && eqGet(tok, j, "{"))
        && isIdentifier(tok.get(j-2))) {
        int k = smartIndexOf(tok, "{", j);
        if (k < l(tok)) {
          k = findEndOfBlock(tok, k)+1;
          functions.add(subList(tok, i-1, k));
          i = k-2;
        }
      }
    }
  }
  return functions;
}

static List<List<String>> findFullFunctionDefs(String s, boolean topLevelOnly) {
  return findFullFunctionDefs(javaTok(s), topLevelOnly);
}
static <A> int indexOfAny(List<A> l, int i, A... x) {
  while (i < l(l))
    if (eqOneOf(l.get(i), x)) return i; else ++i;
  return -1;
}

static <A> int indexOfAny(List<A> l, Collection<A> x) {
  return indexOfAny(l, 0, x);
}

static <A> int indexOfAny(List<A> l, int i, Collection<A> x) {
  if (nempty(x))
    while (i < l(l))
      if (x.contains(l.get(i))) return i; else ++i;
  return -1;
}

static int indexOfAny(String s, int i, String chars) {
  for (; i < l(s); i++)
    if (chars.indexOf(s.charAt(i)) >= 0)
      return i;
  return -1;
}
static String joinSubList(List<String> l, int i, int j) {
  return join(subList(l, i, j));
}

static String joinSubList(List<String> l, int i) {
  return join(subList(l, i));
}


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 contains(BitSet bs, int i) {
  return bs != null && bs.get(i);
}
static String loadSnippet_cached(String id) {
  return loadSnippet_simpleCache(id);
}
static Map<String, String> stdFunctions_cached_map; // name -> snippet ID
static Lock stdFunctions_cached_lock = lock();

static Map<String, String> stdFunctions_cached() {
  Lock __138 = stdFunctions_cached_lock; lock(__138); try {
  if (stdFunctions_cached_map == null) {
    stdFunctions_cached_map = parseStdFunctionsList(loadSnippetSilently("#1006654"));
    stdFunctions_cached_map.putAll(parseStdFunctionsList(loadSnippetSilently("#761")));
  }
  return stdFunctions_cached_map;
} finally { unlock(__138); } }

static synchronized void stdFunctions_clearCache() {
  stdFunctions_cached_map = null;
}
static int findCodeTokens(List<String> tok, String... tokens) {
  return findCodeTokens(tok, 1, false, tokens);
}

static int findCodeTokens(List<String> tok, boolean ignoreCase, String... tokens) {
  return findCodeTokens(tok, 1, ignoreCase, tokens);
}

static int findCodeTokens(List<String> tok, int startIdx, boolean ignoreCase, String... tokens) {
  return findCodeTokens(tok, startIdx, ignoreCase, tokens, null);
}

static List<String> findCodeTokens_specials = litlist("*", "<quoted>", "<id>", "<int>", "\\*");
static boolean findCodeTokens_debug;
static int findCodeTokens_indexed, findCodeTokens_unindexed;
static int findCodeTokens_bails, findCodeTokens_nonbails;

static int findCodeTokens(List<String> tok, int startIdx, boolean ignoreCase, String[] tokens, Object condition) {
  if (findCodeTokens_debug) {
    if (eq(getClassName(tok), "main$IndexedList2"))
      findCodeTokens_indexed++;
    else
      findCodeTokens_unindexed++;
  }
  // bail out early if first token not found (works great with IndexedList)
  if (!findCodeTokens_specials.contains(tokens[0])
    && !tok.contains(tokens[0] /*, startIdx << no signature in List for this, unfortunately */)) {
      ++findCodeTokens_bails;
      return -1;
    }
  ++findCodeTokens_nonbails;
  
  outer: for (int i = startIdx | 1; i+tokens.length*2-2 < tok.size(); i += 2) {
    for (int j = 0; j < tokens.length; j++) {
      String p = tokens[j], t = tok.get(i+j*2);
      boolean match;
      if (eq(p, "*")) match = true;
      else if (eq(p, "<quoted>")) match = isQuoted(t);
      else if (eq(p, "<id>")) match = isIdentifier(t);
      else if (eq(p, "<int>")) match = isInteger(t);
      else if (eq(p, "\\*")) match = eq("*", t);
      else match = ignoreCase ? eqic(p, t) : eq(p, t);
      
      if (!match)
        continue outer;
    }
    
    if (condition == null || checkTokCondition(condition, tok, i-1)) // pass N index
      return i;
  }
  return -1;
}
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 List<String> codeTokensOnly(List<String> tok) {
    List<String> l = new ArrayList();
    for (int i = 1; i < tok.size(); i += 2)
      l.add(tok.get(i));
    return l;
  }
static <A> ArrayList<A> litlist(A... a) {
  ArrayList l = new ArrayList(a.length);
  for (A x : a) l.add(x);
  return l;
}
static <A> List<A> replaceSublist(List<A> l, List<A> x, List<A> y) {
  if (x == null) return l;
  
  int i = 0;
  while (true) {
    i = indexOfSubList(l, x, i);
    if (i < 0) break;
    
    removeSubList(l, i, i+l(x));
    l.addAll(i, y);
    i += l(y);
  }
  return l;
}

static <A> List<A> replaceSublist(List<A> l, int fromIndex, int toIndex, List<A> y) {
  // TODO: optimize more
  removeSubList(l, fromIndex, toIndex);
  l.addAll(fromIndex, y);
  return l;
}


  static void clearAllTokens(List<String> tok) {
    for (int i = 0; i < tok.size(); i++)
      tok.set(i, "");
  }
  
  static void clearAllTokens(List<String> tok, int i, int j) {
    for (; i < j; i++)
      tok.set(i, "");
  }
static String uniqueFileNameUsingMD5_80_v2(String fullName) {
  return uniqueFileNameUsingMD5_80_v2(fullName, md5(fullName));
}

static String uniqueFileNameUsingMD5_80_v2(String fullName, String md5) {
  return takeFirst(80-33, fileNameEncode(fullName)) + " - " + md5;
}
static void saveTextFileUnlessExists(File f, String contents) {
  if (f != null && !f.exists())
    saveTextFile(f, contents);
}
static String lines(Collection lines) { return fromLines(lines); }
static List<String> lines(String s) { return toLines(s); }
static ThreadLocal < VF1 < File > > checkFileNotTooBigToRead_tl = new ThreadLocal();

static void checkFileNotTooBigToRead(File f) {
  callF(checkFileNotTooBigToRead_tl.get(), f);
}
static long recommendedTranspilationDateForStandardFunction(String sfName) {
  return toLong(mechMap("Recommended SF Transpilation Date").get(sfName));
}
static String assertIsIdentifier(String s) {
  if (!isIdentifier(s))
    throw fail("Not an identifier: " + quote(s));
  return s;
}
/** writes safely (to temp file, then rename) */
static File saveTextFile(String fileName, String contents) throws IOException {
  CriticalAction action = beginCriticalAction("Saving file " + fileName + " (" + l(contents) + " chars)");
  try {
    File file = new File(fileName);
    mkdirsForFile(file);
    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);
        
    vmBus_send("wroteFile", file);
    return 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 getSnippetTitle(String id) { try {
  if (id == null) return null;
  if (!isSnippetID(id)) return "?";
  if (isLocalSnippetID(id)) return localSnippetTitle(id);
  long parsedID = parseSnippetID(id);
  String url;
  if (isImageServerSnippet(parsedID))
    url = imageServerURL() + "title/" + parsedID + muricaCredentialsQuery();
  else if (isGeneralFileServerSnippet(parsedID))
    url = "http://butter.botcompany.de:8080/files/name/" + parsedID;
  else
    url = tb_mainServer() + "/tb-int/getfield.php?id=" + parsedID + "&field=title" + standardCredentials_noCookies();
  String title = trim(loadPageSilently(url));
  if (title != null)
    try { saveTextFileIfChanged(snippetTitle_cacheFile(id), title); } catch (Throwable __e) { print(exceptionToStringShort(__e)); }
  return or(title, "?");
} catch (Exception __e) { throw rethrow(__e); } }

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

static boolean substanceLookAndFeelEnabled() {
  return startsWith(getLookAndFeel(), "org.pushingpixels.");
}
static JComponent getTitlePaneComponent(RootPaneContainer window) {
  if (window instanceof JInternalFrame)
	  return getInternalFrameTitlePaneComponent((JInternalFrame) window);
	  
  if (!substanceLookAndFeelEnabled() || window == null) return null;
	JRootPane rootPane = window.getRootPane();
	if (rootPane != null) {
		Object /*SubstanceRootPaneUI*/ ui = rootPane.getUI();
		return (JComponent) call(ui, "getTitlePane");
	}
	return null;
}
static RootPaneContainer getPossiblyInternalFrame(Component c) {
  JInternalFrame f = getInternalFrame(c);
  if (f != null) return f;
  return optCast(RootPaneContainer.class, getWindow(c));
}


// TODO: get rid of map (just look for adapter in listeners)

static Map<JComponent, List> componentPopupMenu_map;
static ThreadLocal<MouseEvent> componentPopupMenu_mouseEvent;

static void componentPopupMenu_init() {
  { swing(new Runnable() {  public void run() { try { 
    if (componentPopupMenu_map == null)
      componentPopupMenu_map = or((Map<JComponent, List>) getOpt(creator(), "componentPopupMenu_map"), (Map<JComponent, List>) (Map) newWeakHashMap());
    if (componentPopupMenu_mouseEvent == null)
      componentPopupMenu_mouseEvent = or((ThreadLocal<MouseEvent>) getOpt(creator(), "componentPopupMenu_mouseEvent"), new ThreadLocal());
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (componentPopupMenu_map == null)\r\n      componentPopupMenu_map = or((Map<J..."; }}); }
}

// menuMaker = voidfunc(JPopupMenu)
static void componentPopupMenu(final JComponent component, final Object menuMaker) {
  componentPopupMenu_init();
  if (component != null && menuMaker != null) { swing(new Runnable() {  public void run() { try { 
    List maker = componentPopupMenu_map.get(component);
    if (maker == null) {
      componentPopupMenu_map.put(component, maker = new ArrayList());
      if (!(component instanceof JInternalFrame)) // lil' hack
        component.addMouseListener(new componentPopupMenu_Adapter(maker));
    }
    maker.add(menuMaker);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "List maker = componentPopupMenu_map.get(component);\r\n    if (maker == null) {..."; }}); }
}

static class componentPopupMenu_Adapter extends MouseAdapter {
  List maker;
  
  componentPopupMenu_Adapter(List 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)
      pcallF(menuMaker, menu);
      
    vmBus_send("showingPopupMenu", e.getComponent(), menu);
    
    // show menu if any items in it
    if (menu.getComponentCount() != emptyCount)
      menu.show(e.getComponent(), e.getX(), e.getY());
  }
}


static Pair<String, Integer> jmenu_autoMnemonic(String s) {
  int i = indexOf(s, '&');
  if (i >= 0 && i < l(s) && isLetterOrDigit(s.charAt(i+1)))
    return pair(substring(s, 0, i) + substring(s, i+1), (int) s.charAt(i+1));
  return pair(s, 0);
}
static ActionListener actionListenerInNewThread(final Object runnable) {
  return actionListenerInNewThread(runnable, null);
}

static ActionListener actionListenerInNewThread(final Object runnable, final Object instanceToHold) {
  if (runnable instanceof ActionListener) return (ActionListener) runnable;
  return new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { try {
    startThread("Action Listener", new Runnable() {  public void run() { try {    
       AutoCloseable __259 = holdInstance(instanceToHold); try {
      callF(runnable);
    } finally { _close(__259); }
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "AutoCloseable __259 = holdInstance(instanceToHold); try {\r\n      callF(runnab..."; }});
  } catch (Throwable __e) { messageBox(__e); }}};
}
static Class hotwireOnce(String programID) {
  return hotwireCached(programID, false);
}
static <A> A listGet(List<A> l, int idx) {
  return l != null && idx >= 0 && idx < l(l) ? l.get(idx) : null;
}
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 File javaxSecretDir(String sub) {
  return newFile(javaxSecretDir(), sub);
}
static volatile Object isAllowed_function; // func(S, O[]) -> bool
static volatile boolean isAllowed_all = true;

static boolean isAllowed(String askingMethod, Object... args) {
  // check on VM level
  Object f = vm_generalMap_get("isAllowed_function");
  if (f != null && !isTrue(callF(f, askingMethod, args))) return false;
  
  // check locally
  return isAllowed_all || isTrue(callF(isAllowed_function, askingMethod, args));
}
static String baseClassName(String className) {
  return substring(className, className.lastIndexOf('.')+1);
}

static String baseClassName(Object o) {
  return baseClassName(getClassName(o));
}
static String prependIfNempty(String prefix, String s) {
  return empty(s) ? s : prefix + s;
}
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 long round(double d) {
  return Math.round(d);
}


static String hmsWithColons() {
  return hmsWithColons(now());
}

static String hmsWithColons(long time) {
  return new SimpleDateFormat("HH:mm:ss").format(time);
}

static byte[] toUtf8(String s) { try {
  return s.getBytes("UTF-8");
} catch (Exception __e) { throw rethrow(__e); } }
static Map<String, java.util.regex.Pattern> compileRegexp_cache = syncMRUCache(10);

static java.util.regex.Pattern compileRegexp(String pat) {
  java.util.regex.Pattern p = compileRegexp_cache.get(pat);
  if (p == null)
    compileRegexp_cache.put(pat, p = java.util.regex.Pattern.compile(pat));
  return p;
}
static String _computerID;
static Lock computerID_lock = lock();

public static String computerID() {
  if (_computerID == null) {
    Lock __569 = computerID_lock; lock(__569); try {
    if (_computerID != null) return _computerID;
    File file = computerIDFile();
    _computerID = loadTextFile(file.getPath());
    if (_computerID == null) {
      // legacy load
      _computerID = loadTextFile(userDir(".tinybrain/computer-id"));
      if (_computerID == null)
        _computerID = makeRandomID(12, new SecureRandom());
      saveTextFile(file, _computerID);
    }
  } finally { unlock(__569); } }
  return _computerID;
}
static int charDiff(char a, char b) {
  return (int) a-(int) b;
}

static int charDiff(String a, char b) {
  return charDiff(stringToChar(a), b);
}


static List<String> splitAtSpace(String s) {
  return empty(s) ? emptyList() : asList(s.split("\\s+"));
}
// i must point at the (possibly imaginary) opening bracket ("{")
// index returned is index of closing bracket + 1 (or l(cnc))
static int findEndOfBlock(List<String> cnc, int i) {
  int j = i+2, level = 1;
  while (j < cnc.size()) {
    if (cnc.get(j).equals("{")) ++level;
    else if (cnc.get(j).equals("}")) --level;
    if (level == 0)
      return j+1;
    ++j;
  }
  return cnc.size();
}
// returns l(s) if not found
static int smartIndexOf(String s, String sub, int i) {
  if (s == null) return 0;
  i = s.indexOf(sub, min(i, l(s)));
  return i >= 0 ? i : l(s);
}

static int smartIndexOf(String s, int i, char c) {
  return smartIndexOf(s, c, i);
}

static int smartIndexOf(String s, char c, int i) {
  if (s == null) return 0;
  i = s.indexOf(c, min(i, l(s)));
  return i >= 0 ? i : l(s);
}

static int smartIndexOf(String s, String sub) {
  return smartIndexOf(s, sub, 0);
}

static int smartIndexOf(String s, char c) {
  return smartIndexOf(s, c, 0);
}

static <A> int smartIndexOf(List<A> l, A sub) {
  return smartIndexOf(l, sub, 0);
}

static <A> int smartIndexOf(List<A> l, int start, A sub) {
  return smartIndexOf(l, sub, start);
}

static <A> int smartIndexOf(List<A> l, A sub, int start) {
  int i = indexOf(l, sub, start);
  return i < 0 ? l(l) : i;
}
static ExpiringMap2<String, String> loadSnippet_simpleCache_map = new ExpiringMap2(10000);
static Lock loadSnippet_simpleCache_lock = lock();

// timeout for loadPage
static int loadSnippet_simpleCache_timeout = 60000;

static String loadSnippet_simpleCache(String id) {
  if (id == null) return null;
  Lock __146 = loadSnippet_simpleCache_lock; lock(__146); try {
  id = fsI(id);
  
  // get from cache
  String src = loadSnippet_simpleCache_map.get(id);
  if (src != null) return src;
  
  // load & put in cache
  Integer oldTimeout = setThreadLocal(loadPage_forcedTimeout_byThread, loadSnippet_simpleCache_timeout);
  try {
    src = loadSnippet(id);
    if (src != null)
      loadSnippet_simpleCache_map.put(id, src);
    return src;
  } finally {
    loadPage_forcedTimeout_byThread.set(oldTimeout);
  }
} finally { unlock(__146); } }
// map contains function name -> snippet id
static Map<String, String> parseStdFunctionsList(String snippetSrc) {
  List<String> tok = javaTok(snippetSrc);
  int i = findCodeTokens(tok, "standardFunctions", "=", "litlist", "(");
  int opening = i+6;
  int closing = indexOf(tok, ")", opening)-1;
  Map<String, String> map = litorderedmap();
  for (i = opening+2; i < closing; i += 4) {
    String[] f = unquote(tok.get(i)).split("/");
    map.put(f[1], f[0]);
  }
  return map;
}

static String loadSnippetSilently(Snippet s) {
  return loadSnippetQuietly(s);
}



static String loadSnippetSilently(String snippetID) {
  return loadSnippetQuietly(snippetID);
}
static boolean eqic(String a, String b) {
  
  
    if ((a == null) != (b == null)) return false;
    if (a == null) return true;
    return a.equalsIgnoreCase(b);
  
}



static boolean eqic(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 boolean checkTokCondition(Object condition, List<String> tok, int i) {
  if (condition instanceof TokCondition)
    return ((TokCondition) condition).get(tok, i);
  return checkCondition(condition, tok, i);
}
static <A> int indexOfSubList(List<A> x, List<A> y) {
  return indexOfSubList(x, y, 0);
}

static <A> int indexOfSubList(List<A> x, List<A> y, int i) {
  outer: for (; i+l(y) <= l(x); i++) {
    for (int j = 0; j < l(y); j++)
      if (neq(x.get(i+j), y.get(j)))
        continue outer;
    return i;
  }
  return -1;
}

static <A> int indexOfSubList(List<A> x, A[] y, int i) {
  outer: for (; i+l(y) <= l(x); i++) {
    for (int j = 0; j < l(y); j++)
      if (neq(x.get(i+j), y[j]))
        continue outer;
    return i;
  }
  return -1;
}
static void removeSubList(List l, int from, int to) {
  if (l != null) subList(l, from, to).clear();
}

static void removeSubList(List l, int from) {
  if (l != null) subList(l, from).clear();
}
static String md5(String text) { try {
  if (text == null) return "-";
  return bytesToHex(md5_impl(toUtf8(text))); // maybe different than the way PHP does it...
} catch (Exception __e) { throw rethrow(__e); } }

static String md5(byte[] data) {
  if (data == null) return "-";
  return bytesToHex(md5_impl(data));
}

static MessageDigest md5_md;

/*static byte[] md5_impl(byte[] data) ctex {
  if (md5_md == null)
    md5_md = MessageDigest.getInstance("MD5");
  return ((MessageDigest) md5_md.clone()).digest(data);
}*/

static byte[] md5_impl(byte[] data) { try {
  return MessageDigest.getInstance("MD5").digest(data);
} catch (Exception __e) { throw rethrow(__e); } }

static String md5(File file) {
  return md5OfFile(file);
}
static <A> List<A> takeFirst(List<A> l, int n) {
  return l(l) <= n ? l : newSubListOrSame(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 String takeFirst(String s, int n) { return substring(s, 0, n); }

static <A> List<A> takeFirst(int n, Iterable<A> i) {
  List l = new ArrayList();
  Iterator<A> it = i.iterator();
  for (int _repeat_4 = 0; _repeat_4 < n; _repeat_4++)  { if (it.hasNext()) l.add(it.next()); else break; }
  return l;
}

static String fileNameEncode_safeChars = " ()[]#,!";

static String fileNameEncode(String s) {
  StringBuilder buf = new StringBuilder();
  int n = l(s);
  for (int i = 0; i < n; i++) {
    char c = s.charAt(i);
    if (contains(fileNameEncode_safeChars, c))
      buf.append(c);
    else
      buf.append(urlencode(str(c)));
  }
  return str(buf);
}
// 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 long toLong(Object o) {
  if (o instanceof Number)
    return ((Number) o).longValue();
  if (o instanceof String)
    return parseLong((String) o);
  return 0;
}
static Map<String, String> mechMap(String listName) {
  return mechMapCI(listName);
}
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 " + n2(n, "critical actions") + ": " + join(", ", collect(beginCriticalAction_inFlight, "description")));
      } catch (Throwable __e) { _handleException(__e); }
    }
    sleepInCleanUp(10);
  }
}
public static void copyFile(File src, File dest) { try {
  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 boolean isLocalSnippetID(String snippetID) {
  return isSnippetID(snippetID) && isLocalSnippetID(psI(snippetID));
}

static boolean isLocalSnippetID(long snippetID) {
  return snippetID >= 1000 && snippetID <= 9999;
}
static String localSnippetTitle(String snippetID) {
  if (!isLocalSnippetID(snippetID)) return null;
  File f = localSnippetFile(snippetID);
  if (!f.exists()) return null;
  return or2(getFileInfoField(dropExtension(f), "Title"), "Unnamed");
}
static String muricaCredentialsQuery() {
  return htmlQuery(muricaCredentials());
}
static boolean isGeneralFileServerSnippet(long id) {
  return id >= 1400000 && id < 1500000;
}
static String standardCredentials_noCookies() {
  return standardCredentials() + "&noCookies=1";
}
static boolean saveTextFileIfChanged(File f, String contents) {
  return saveTextFileIfDifferent(f, contents);
}
static File snippetTitle_cacheFile(String snippetID) {
  return javaxCachesDir("Snippet Titles/" + psI(snippetID));
}
static String getLookAndFeel() {
  return getClassName(UIManager.getLookAndFeel());
}
static JComponent getInternalFrameTitlePaneComponent(JInternalFrame f) {
  return (JComponent) childWithClassNameEndingWith(f, "InternalFrameTitlePane");
}

static JInternalFrame getInternalFrame(final Object _o) {
  return _o == null ? null : swing(new F0<JInternalFrame>() { JInternalFrame 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 JInternalFrame) return (JInternalFrame) 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((Button..."; }});
}
static <A> A optCast(Class<A> c, Object o) {
  return isInstance(c, o) ? (A) o : null;
}
static boolean isLetterOrDigit(char c) {
  return Character.isLetterOrDigit(c);
}
static TreeMap<String,Class> hotwireCached_cache = new TreeMap();
static Lock hotwireCached_lock = lock();

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

static Class hotwireCached(String programID, boolean runMain) {
  return hotwireCached(programID, runMain, false);
}

static Class hotwireCached(String programID, boolean runMain, boolean dependent) {
  Lock __260 = hotwireCached_lock; lock(__260); try {
  
  programID = formatSnippetID(programID);
  Class c = hotwireCached_cache.get(programID);
  if (c == null) {
    c = hotwire(programID);
    if (dependent)
      makeDependent(c);
    if (runMain)
      callMain(c);
    hotwireCached_cache.put(programID, c);
  }
  return c;
} finally { unlock(__260); } }
static Object sleepQuietly_monitor = new Object();

static void sleepQuietly() { try {
  assertFalse(isAWTThread());
  synchronized(sleepQuietly_monitor) { sleepQuietly_monitor.wait(); }
} catch (Exception __e) { throw rethrow(__e); } }
static <A, B> Map<A, B> syncMRUCache(int size) {
  return synchroMap(new MRUCache(size));
}
static File computerIDFile() {
  return javaxDataDir("Basic Info/computer-id.txt");
}
static String makeRandomID(int length) {
  return makeRandomID(length, defaultRandomGenerator());
}

static String makeRandomID(int length, Random 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 stringToChar(String s) {
  if (l(s) != 1) throw fail("bad stringToChar: " + s);
  return firstChar(s);
}


static boolean preferCached = false;
static boolean loadSnippet_debug = false;
static ThreadLocal<Boolean> loadSnippet_silent = new ThreadLocal();
static int loadSnippet_timeout = 30000;


static String loadSnippet(Snippet s) {
  return loadSnippet(s.id);
}


static String loadSnippet(String snippetID) { try {
  if (snippetID == null) return null;
  return loadSnippet(parseSnippetID(snippetID), preferCached);
} catch (Exception __e) { throw rethrow(__e); } }

static String loadSnippet(String snippetID, boolean preferCached) throws IOException {
  return loadSnippet(parseSnippetID(snippetID), preferCached);
}

public static String loadSnippet(long snippetID) { try {
  return loadSnippet(snippetID, preferCached);
} catch (Exception __e) { throw rethrow(__e); } }

public static String loadSnippet(long snippetID, boolean preferCached) throws IOException {
  String text;
  
  if (isLocalSnippetID(snippetID))
    return loadLocalSnippet(snippetID);
  
  // boss bot disabled for now for shorter transpilations
  
  /*text = getSnippetFromBossBot(snippetID);
  if (text != null) return text;*/
  
  initSnippetCache();
  text = DiskSnippetCache_get(snippetID);
  
  if (preferCached && text != null)
    return text;
  
  try {
    if (loadSnippet_debug && text != null) System.err.println("md5: " + md5(text));
    String url = tb_mainServer() + "/getraw.php?id=" + snippetID + "&utf8=1";
    if (nempty(text)) url += "&md5=" + md5(text);
    url += standardCredentials();
    
    String text2 = loadSnippet_loadFromServer(url);
    
    boolean same = eq(text2, "==*#*==");
    if (loadSnippet_debug) print("loadSnippet: same=" + same);
    if (!same) text = text2;
  } catch (RuntimeException e) {
    e.printStackTrace();
    throw new IOException("Snippet #" + snippetID + " not found or not public");
  }

  try {
    initSnippetCache();
    DiskSnippetCache_put(snippetID, text);
  } catch (IOException e) {
    System.err.println("Minor warning: Couldn't save snippet to cache ("  + DiskSnippetCache_getDir() + ")");
  }

  return text;
}

static File DiskSnippetCache_dir;

public static void initDiskSnippetCache(File dir) {
  DiskSnippetCache_dir = dir;
  dir.mkdirs();
}

public static synchronized String DiskSnippetCache_get(long snippetID) throws IOException {
  return loadTextFile(DiskSnippetCache_getFile(snippetID).getPath(), null);
}

private static File DiskSnippetCache_getFile(long snippetID) {
  return new File(DiskSnippetCache_dir, "" + snippetID);
}

public static synchronized void DiskSnippetCache_put(long snippetID, String snippet) throws IOException {
  saveTextFile(DiskSnippetCache_getFile(snippetID).getPath(), snippet);
}

public static File DiskSnippetCache_getDir() {
  return DiskSnippetCache_dir;
}

public static void initSnippetCache() {
  if (DiskSnippetCache_dir == null)
    initDiskSnippetCache(getGlobalCache());
}

static String loadSnippet_loadFromServer(String url) {
  Integer oldTimeout = setThreadLocal(loadPage_forcedTimeout_byThread, loadSnippet_timeout);
  try {
    return isTrue(loadSnippet_silent.get()) ? loadPageSilently(url) : loadPage(url);
  } finally {
    loadPage_forcedTimeout_byThread.set(oldTimeout);
  }
}

static LinkedHashMap litorderedmap(Object... x) {
  LinkedHashMap map = new LinkedHashMap();
  litmap_impl(map, x);
  return map;
}

static String loadSnippetQuietly(Snippet s) {
  return loadSnippetQuietly(s.id);
}


static String loadSnippetQuietly(String snippetID) {
  loadSnippet_silent.set(true);
  try {
    return loadSnippet(snippetID);
  } finally {
    loadSnippet_silent.set(null);
  }
}
static String asString(Object o) {
  return o == null ? null : o.toString();
}
static boolean checkCondition(Object condition, Object... args) {
  return isTrue(callF(condition, args));
}
static boolean md5OfFile_verbose;

static String md5OfFile(String path) {
  return md5OfFile(newFile(path));
}

static String md5OfFile(File f) { try {
  if (!f.exists()) return "-";
  
  if (md5OfFile_verbose)
    print("Getting MD5 of " + f);
  
  MessageDigest md5 = MessageDigest.getInstance("MD5");
   FileInputStream in = new FileInputStream(f); try {

  byte buf[] = new byte[65536];
  int l;
  while (true) {
    l = in.read(buf);
    if (l <= 0) break;
    md5.update(buf, 0, l);
  }
  
  return bytesToHex(md5.digest());
} finally { _close(in); }} catch (Exception __e) { throw rethrow(__e); } }
static <A> List<A> newSubListOrSame(List<A> l, int startIndex) {
  return newSubListOrSame(l, startIndex, l(l));
}

static <A> List<A> newSubListOrSame(List<A> l, int startIndex, int endIndex) {
  if (l == null) return null;
  startIndex = max(0, startIndex);
  endIndex = min(l(l), endIndex);
  if (startIndex >= endIndex) return ll();
  if (startIndex == 0 && endIndex == l(l)) return l;
  return cloneList(l.subList(startIndex, endIndex));
}


static String urlencode(String x) {
  try {
    return URLEncoder.encode(unnull(x), "UTF-8");
  } catch (UnsupportedEncodingException e) { throw new RuntimeException(e); }
}
// name -> (name, parsed map)
static Map<String, Pair<String, Map<String, String>>> mechMapCI_cache = synchroMap();

static Map<String, String> mechMapCI(String listName) {
  Pair<String, Map<String, String>> p = mechMapCI_cache.get(listName);
  String text = mechList_raw(listName);
  if (p != null && eq(p.a, text)) return p.b;
  String parsing = first(mechList_opt(listName + " | Parsing"));
  Map<String, String> map;
  if (parsing == null)
    map = parseDoubleArrowMapCI(tlft(text));
  else
    
      map = asCIMap((Map<String, String>) callAndMake(parsing, text));
    
    
  p = pair(text, map);
  mechMapCI_cache.put(listName, p);
  return p.b;
}
static String n2(long l) { return formatWithThousands(l); }
static String n2(Collection l) { return n2(l(l)); }

static String n2(double l, String singular) {
  return n2(l, singular, singular + "s");
}

static String n2(double l, String singular, String plural) {
  if (fraction(l) == 0)
    return n2((long) l, singular, plural);
  else
    return l + " " + plural;
}

static String n2(long l, String singular, String plural) {
  return n_fancy2(l, singular, plural);
}

static String n2(long l, String singular) {
  return n_fancy2(l, singular, singular + "s");
}

static String n2(Collection l, String singular) {
  return n2(l(l), singular);
}

static String n2(Collection l, String singular, String plural) {
  return n_fancy2(l, singular, plural);
}

static String n2(Map m, String singular, String plural) {
  return n_fancy2(m, singular, plural);
}

static String n2(Map m, String singular) {
  return n2(l(m), singular);
}

static String n2(Object[] a, String singular) { return n2(l(a), singular); }
static String n2(Object[] a, String singular, String plural) { return n_fancy2(a, singular, plural); }


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 void sleepInCleanUp(long ms) { try {
  if (ms < 0) return;
  Thread.sleep(ms);
} catch (Exception __e) { throw rethrow(__e); } }
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 File localSnippetFile(long snippetID) {
  return localSnippetsDir(snippetID + ".text");
}

static File localSnippetFile(String snippetID) {
  return localSnippetFile(parseSnippetID(snippetID));
}
static String getFileInfoField(File f, String field) {
  return getOneLineFileInfoField(f, field);
}
static File dropExtension(File f) {
  return f == null ? null : fileInSameDir(f, dropExtension(f.getName()));
}

static String dropExtension(String s) {
  return takeFirst(s, smartLastIndexOf(s, '.'));
}
static String htmlQuery(Map params) {
  return params.isEmpty() ? "" : "?" + makePostData(params);
}

static String htmlQuery(Object... data) {
  return htmlQuery(litmap(data));
}
static Object[] muricaCredentials() {
  String pass = muricaPassword();
  return nempty(pass) ? new Object[] {"_pass", pass } : new Object[0];
}
static String standardCredentials() {
  String user = standardCredentialsUser();
  String pass = standardCredentialsPass();
  if (nempty(user) && nempty(pass))
    return "&_user=" + urlencode(user) + "&_pass=" + urlencode(pass);
  return "";
}
static boolean saveTextFileIfDifferent(File f, String contents) {
  if (eq(loadTextFile(f), contents)) return false;
  { saveTextFile(f, contents); return true; }
}
static Component childWithClassNameEndingWith(Component c, String suffix) {
  if (endsWith(className(c), suffix)) return c;
  Component x;
  for (Component comp : getComponents(c))
    if ((x = childWithClassNameEndingWith(comp, suffix)) != null) return x;
  return null;
}
static boolean isInstance(Class type, Object arg) {
  return type.isInstance(arg);
}
static <A> A callMain(A c, String... args) {
  callOpt(c, "main", new Object[] {args});
  return c;
}

static void callMain() {
  callMain(mc());
}
static Random defaultRandomGenerator() {
  return ThreadLocalRandom.current();
}
static char firstChar(String s) {
  return s.charAt(0);
}


static Map<String, String> parseDoubleLeftArrowMapCI_tlft(String s) {
  return parseDoubleLeftArrowMapCI(tlft(s));
}
static String loadLocalSnippet(String snippetID) {
  return loadLocalSnippet(psI(snippetID));
}

static String loadLocalSnippet(long snippetID) {
  return loadTextFile(localSnippetFile(snippetID));
}
static ExpiringMap2<String, String> mechList_raw_cache = new ExpiringMap2(10000).setMap(ciMap());
static Lock mechList_raw_lock = lock();

// timeout for loading
static int mechList_raw_timeout = 60000;

static String mechList_raw(String name) { try {
  Lock __305 = mechList_raw_lock; lock(__305); try {
  
  if (empty(name)) return "";
  
  // get from cache
  String src = mechList_raw_cache.get(name);
  if (src != null) return src;
  
  // load & put in cache - TODO: make postPage honor this
   AutoCloseable __306 = tempSetThreadLocal(loadPage_forcedTimeout_byThread, mechList_raw_timeout); try {
  src = mechList_raw_fresh(name);
  if (src != null)
    mechList_raw_cache.put(name, src);
  return src;
} finally { _close(__306); }} finally { unlock(__305); } } catch (Exception __e) { throw rethrow(__e); } }

static VF2<String, Object> mechList_raw_listener = new VF2<String, Object>() { public void get(String msg, Object arg) { try { 
  if (eq(msg, "mechChange") && arg instanceof String) {
    //print("Got change notification: " + arg);
    mechList_raw_cache.remove((String) arg);
  }
 } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "if (eq(msg, 'mechChange) && arg instanceof S) {\r\n    //print(\"Got change noti..."; }};

static void _onLoad_mechList_raw() { add(vm_busListeners_live(), mechList_raw_listener); }
static void cleanMeUp_mechList_raw() { remove(vm_busListeners_live(), mechList_raw_listener); }
static List<String> mechList_opt(String name) {
  return mechList_opt_tlft(name);
}
static Map<String, String> parseDoubleArrowMapCI(List<String> l) {
  return parseDoubleArrowMap((Map) ciMap(), l);
}
static List<String> tlft(String s) { return toLinesFullTrim(s); }
static List<String> tlft(File f) { return toLinesFullTrim(f); }

static <B> TreeMap<String, B> asCIMap(Map<String, B> map) {
  return asCaseInsensitiveMap(map);
}
static String formatWithThousands(long l) {
  return formatWithThousandsSeparator(l);
}
static double fraction(double d) {
  return d % 1;
}
static String n_fancy2(long l, String singular, String plural) {
  return formatWithThousandsSeparator(l) + " " + trim(l == 1 ? singular : plural);
}

static String n_fancy2(Collection l, String singular, String plural) {
  return n_fancy2(l(l), singular, plural);
}

static String n_fancy2(Map m, String singular, String plural) {
  return n_fancy2(l(m), singular, plural);
}

static String n_fancy2(Object[] a, String singular, String plural) {
  return n_fancy2(l(a), singular, plural);
}


static List collectField(Collection c, String field) {
  List l = new ArrayList();
  if (c != null) for (Object a : c)
    l.add(getOpt(a, field));
  return l;
}

static List collectField(String field, Collection c) {
  return collectField(c, field);
}
static <A extends Concept> List<A> list(Class<A> type) {
  return db_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 db_mainConcepts().list(type);
}

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

static File localSnippetsDir() {
  return javaxDataDir("Personal Programs");
}

static File localSnippetsDir(String sub) {
  return newFile(localSnippetsDir(), sub);
}
static String getOneLineFileInfoField(File f, String field) {
  File infoFile = associatedInfosFile(f);
  List<String> lines = lines(loadTextFile(infoFile));
  return firstStartingWithIC_drop(lines, field + ": ");
}
static File fileInSameDir(File f, String newName) {
  return newFile(parentFile(f), newName);
}
static int smartLastIndexOf(String s, char c) {
  if (s == null) return 0;
  int i = s.lastIndexOf(c);
  return i >= 0 ? i : l(s);
}
static String makePostData(Map<Object, Object> map) {
  List<String> l = new ArrayList();
  for (Map.Entry<Object, Object> e : map.entrySet()) {
    String key = (String) ( e.getKey());
    Object val = e.getValue();
    if (val != null) {
      String value = str(val); //structureOrText(val);
      l.add(urlencode(key) + "=" + urlencode(/*escapeMultichars*/(value)));
    }
  }
  return join("&", l);
}

static String makePostData(Object... params) {
  return makePostData(litorderedmap(params));
}

static String standardCredentialsUser() {
  return trim(loadTextFile(new File(userHome(), ".tinybrain/username")));
}
static String standardCredentialsPass() {
  return trim(loadTextFile(new File(userHome(), ".tinybrain/userpass")));
}
static List<Component> getComponents(final Component c) {
  return !(c instanceof Container) ? emptyList() : asList(swing(new F0<Component[]>() { Component[] get() { try {  return ((Container) c).getComponents();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret ((Container) c).getComponents();"; }}));
}


static Map<String, String> parseDoubleLeftArrowMapCI(List<String> l) {
  return parseDoubleLeftArrowMap((Map) ciMap(), l);
}
static <A> TreeMap<String, A> ciMap() {
  return caseInsensitiveMap();
}
static String mechList_raw_fresh(String name) {
  return mechList_opt_raw_fresh(name);
}
static void add(BitSet bs, int i) {
  bs.set(i);
}

static <A> boolean add(Collection<A> c, A a) {
  return c != null && c.add(a);
}

static void add(Container c, Component x) {
  addToContainer(c, x);
}
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 List<String> mechList_opt_tlft(String name) {
  return tlft(mechList_opt_raw(name));
}
static Map<String, String> parseDoubleArrowMap(Map<String, String> map, List<String> l) {
  for (String s : l) {
    List<String> x = splitAtDoubleArrow_bothDirections(s);
    if (l(x) == 2) map.put(first(x), second(x));
  }
  return map;
}
static List<String> toLinesFullTrim(String s) {
  List<String> l = new ArrayList();
  for (String line : toLines(s)) if (nempty(line = trim(line))) l.add(line);
  return l;
}

static List<String> toLinesFullTrim(File f) {
  List<String> l = new ArrayList();
  for (String line : linesFromFile(f)) if (nempty(line = trim(line))) l.add(line);
  return l;
}

static <B> TreeMap<String, B> asCaseInsensitiveMap(Map<String, B> map) {
  if (isCIMap(map)) return (TreeMap) map;
  TreeMap<String, B> m = ciMap();
  m.putAll(map);
  return m;
}


static String formatWithThousandsSeparator(long l) {
  return NumberFormat.getInstance(new Locale("en_US")).format(l);
}
static volatile Concepts mainConcepts; // Where we create new concepts

static Concepts db_mainConcepts() {
  if (mainConcepts == null) {
    mainConcepts = new Concepts(getDBProgramID());
    mainConcepts.classFinder = _defaultClassFinder();
  }
  return mainConcepts;
}
static File associatedInfosFile(File f) {
  return replaceExtension(f, ".infos");
}
static String firstStartingWithIC_drop(Collection<String> l, final String prefix) {
  for (String s : unnull(l))
    if (swic(s, prefix))
      return substring(s, l(prefix));
  return null;
}

static String firstStartingWithIC_drop(String prefix, Collection<String> l) {
  return firstStartingWithIC_drop(l, prefix);
}
static File parentFile(File f) {
  return dirOfFile(f);
}


static Map<String, String> parseDoubleLeftArrowMap(Map<String, String> map, List<String> l) {
  for (String s : l) {
    List<String> x = splitAtDoubleLeftArrow(s);
    if (l(x) == 2) map.put(second(x), first(x));
  }
  return map;
}
static <A> TreeMap<String, A> caseInsensitiveMap() {
  return new TreeMap(caseInsensitiveComparator());
}
static String mechList_opt_raw_fresh(String name) {
  
  
  Object readMode = mechMode().readMode;
  if (readMode instanceof File) {
    String md5Name = uniqueFileNameUsingMD5_80_v2(upper(name));
    return loadTextFileFromZipFile((File) readMode, md5Name);
  }
  

  boolean useLocal = false, useRemote = true;
  if (eq(readMode, "mergeLocalAndRemote"))
    useLocal = true;
  else if (eq(readMode, "local")) {
    useLocal = true; useRemote = false;
  }
   
  String s = "";
  
  if (useRemote) {
    if (eq(mechMode().readMode, "localCopies"))
      s = unnull(loadTextFile(remoteMechListMirrorFile(name)));
    else
      s = serverMechList_raw_fresh(name, true);
  }
  
  if (useLocal)
    s = appendNewLineIfNempty(s) + localMechList_opt_raw_fresh(name);
  
  return s;
}
static void addToContainer(final Container a, final Component b) {
  if (a != null && b != null) { swing(new Runnable() {  public void run() { try {  a.add(b); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "a.add(b);"; }}); }
}
static String mechList_opt_raw(String name) { try {
  Lock __358 = mechList_raw_lock; lock(__358); try {
  
  if (mechList_goToCreator() || eq(mechMode().readMode, "creator"))
    return (String) call(creator(), "mechList_opt_raw", name);
  
  // get from cache
  String src = mechList_raw_cache.get(name);
  if (src != null) return src;
  
  // load & put in cache
  src = mechList_opt_raw_fresh(name);
  mechList_raw_cache.put(name, unnull(src));
  return src;
} finally { unlock(__358); } } catch (Exception __e) { throw rethrow(__e); } }

static void _onLoad_mechList_opt_raw() {
  _registerAutoCloseable(vmBus_onMessage("mechList_clearCache", new VF1<String>() { public void get(String listName) { try { 
    if (!isTrue(mechList_clearCache_inFunction.get()))
      mechList_clearCache_noSend(listName);
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "if (!isTrue(mechList_clearCache_inFunction!))\r\n      mechList_clearCache_noSe..."; }}));
}
static List<String> splitAtDoubleArrow_bothDirections(String s) {
  return splitAtDoubleArrow_bothDirections(javaTok(s));
}

static List<String> splitAtDoubleArrow_bothDirections(List<String> tok) {
  List<String> l = splitAtDoubleArrow(tok);
  if (l(l) != 2) l = reversedList(splitAtDoubleLeftArrow(tok));
  return l;
}
static boolean isCIMap(Map m) {
  return m instanceof TreeMap && ((TreeMap) m).comparator() == caseInsensitiveComparator();
}
static String getDBProgramID_id;

static String getDBProgramID() {
  return nempty(getDBProgramID_id) ? getDBProgramID_id : programIDWithCase();
}
static Object _defaultClassFinder_value;

static Object _defaultClassFinder() {
  return _defaultClassFinder_value;
}
static File replaceExtension(File f, String extOld, String extNew) {
  return newFile(replaceExtension(f2s(f), extOld, extNew));
}

static File replaceExtension(File f, String extNew) {
  return replaceExtension(f, fileExtension(f), extNew);
}

static String replaceExtension(String s, String extOld, String extNew) {
  s = dropSuffixIC(addPrefixOptIfNempty(".", extOld), s);
  return s + addPrefixOptIfNempty(".", extNew);
}

static String replaceExtension(String name, String extNew) {
  return replaceExtension(name, fileExtension(name), extNew);
}
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 File dirOfFile(File f) {
  return f == null ? null : f.getParentFile();
}


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

static void mechList_clearCache(String listName) {
  {
     AutoCloseable __362 = tempSetTL(mechList_clearCache_inFunction, true); try {
    print("Sending mech clear: " + listName);
    vmBus_send("mechList_clearCache", listName);
  } finally { _close(__362); }}
  
  mechList_clearCache_noSend(listName);
}
  
static void mechList_clearCache_noSend(String listName) {
  for (String field : mcFields())
    if (startsWithEndsWith(field, "mech", "_cache")) {
      Object o = getOptMC(field);
      if (o instanceof Map)
        removeFromMapCI_sync((Map) o, listName);
    }
    
  /*if (mechList_goToCreator())
    callCreatorOpt('mechList_clearCache, listName);*/
}
static List<String> splitAtDoubleLeftArrow(String s) {
  return splitAtDoubleLeftArrow(javaTok(s));
}

static List<String> splitAtDoubleLeftArrow(List<String> tok) {
  List<String> l = new ArrayList();
  int i = 0;
  while (i < l(tok)) {
    int j = indexOfSubList(tok, ll("<", "", "="), i);
    if (i >= l(tok)) break;
    if (j < 0) j = l(tok);
    l.add(trimJoin(tok.subList(i, j)));
    i = j+3;
  }
  return l;
}
static Comparator<String> caseInsensitiveComparator() {
  
  
  return betterCIComparator();
  
}
static MechMode mechMode_value = new MechMode();

static MechMode mechMode() {
  return mechMode_value;
}
static String upper(String s) {
  return s == null ? null : s.toUpperCase();
}

static char upper(char c) {
  return Character.toUpperCase(c);
}
static String loadTextFileFromZipFile(File inZip, String fileName) { try {
  if (!fileExists(inZip)) return null;
  try {
     ZipFile zip = new ZipFile(inZip); try {
    return loadTextFileFromZipFile(zip, fileName);
  } finally { _close(zip); }} catch (Throwable e) {
    throw fail(f2s(inZip), e);
  }
} catch (Exception __e) { throw rethrow(__e); } }
    
static String loadTextFileFromZipFile(ZipFile zip, String fileName) { try {
  ZipEntry entry = zip.getEntry(fileName);
  if (entry == null) return null;
   InputStream fin = zip.getInputStream(entry); try {
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  copyStream(fin, baos);
  return fromUTF8(baos.toByteArray());
} finally { _close(fin); }} catch (Exception __e) { throw rethrow(__e); } }
static File remoteMechListMirrorFile(String listName) {
  return newFile(remoteMechListMirrorsDir(), uniqueFileNameUsingMD5_80_v2(upper(listName)));
}
static boolean serverMechList_raw_fresh_verbose;

static String serverMechList_raw_fresh(String name) {
  return serverMechList_raw_fresh(name, false);
}

static String serverMechList_raw_fresh(String name, boolean opt) {
  Lock __374 = downloadLock(); lock(__374); try {
  if (serverMechList_raw_fresh_verbose)
    print("serverMechList_raw_fresh " + name);
  String text = null;
  try { text = loadTextFile(remoteMechListMirrorFile(name)); } catch (Throwable __e) { _handleException(__e); }
  Object[] params = muricaCredentialsPlus("md5" , md5OrNull(text), "l" , l(text), "opt" , opt ? 1 : 0, "withStatus" , 1);
  String url = "http://butter.botcompany.de:8080/mech/raw/list-text/" + urlencode(name);
  String page = postPageSilently(url, params);
  Map map = jsonDecodeMap(page);
  boolean same = eq(map.get("Same"), true);
  boolean appended = eq(map.get("Appended"), true);
  if (serverMechList_raw_fresh_verbose)
    print("Mech list " + name + ": " + (appended ? "appended" : same ? "same" : "downloaded"));
  saveTextFile(remoteMechListMirrorMetaFile(name), struct(getMultipleKeys(map, "Name", "Status")));
  if (same) return text;
  if (appended) text += (String) map.get("Text");
  else text = (String) map.get("Text");
  saveTextFile(remoteMechListMirrorFile(name), text);
  File nameFile = remoteMechListMirrorNameFile(name);
  if (!fileExists(nameFile)) {
    String actualName = or((String) map.get("Name"), name);
    saveTextFile(nameFile, actualName);
  }
  vmBus_send("remoteMechListMirrorChanged", name);
  return text;
} finally { unlock(__374); } }
static String appendNewLineIfNempty(String s) {
  return empty(s) ? "" : s + "\n";
}
static String localMechList_opt_raw_fresh(String name) {
  return unnull(loadTextFile(localMechListFile(name)));
}
static boolean mechList_goToCreator_dont;

static boolean mechList_goToCreator() {
  return eqOneOf(mechMode().readMode, null, "creator") && !mechList_goToCreator_dont && hasMethodNamed(creator(), "mechList_opt_raw");
}
static Set<AutoCloseable> _registerAutoCloseable_set = synchroHashSet();

static void _registerAutoCloseable(AutoCloseable c) {
  addIfNotNull(_registerAutoCloseable_set, c);
}

static void cleanMeUp__registerAutoCloseable() {
  closeAutoCloseables(getAndClearList(_registerAutoCloseable_set));
}
static List<String> splitAtDoubleArrow(String s) {
  return splitAtDoubleArrow(javaTok(s));
}

static List<String> splitAtDoubleArrow(List<String> tok) {
  List<String> l = new ArrayList();
  int i = 0;
  while (i < l(tok)) {
    int j = indexOfSubList(tok, ll("=", "", ">"), i);
    if (i >= l(tok)) break;
    if (j < 0) j = l(tok);
    l.add(trimJoin(tok.subList(i, j)));
    i = j+3;
  }
  return l;
}
static <A> List<A> reversedList(Collection<A> l) {
  List<A> x = cloneList(l);
  Collections.reverse(x);
  return x;
}
static String programIDWithCase() {
  return nempty(caseID())
    ? programID() + "/" + quoteUnlessIdentifierOrInteger(caseID())
    : programID();
}
static String fileExtension(File f) {
  if (f == null) return null;
  return fileExtension(f.getName());
}

static String fileExtension(String s) {
  return substring(s, smartLastIndexOf(s, '.'));
}
static String dropSuffixIC(String suffix, String s) {
  return s == null ? null : ewic(s, suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
static String addPrefixOptIfNempty(String prefix, String s) {
  return addPrefixIfNotEmpty2(prefix, s);
}
static boolean startsWithIgnoreCase(String a, String b) {
  return regionMatchesIC(a, 0, b, 0, b.length());
}


static Set<String> mcFields() {
  return staticFieldNames(mc());
}
static boolean startsWithEndsWith(String s, String prefix, String suffix) {
  return startsWith(s, prefix) && endsWith(s, suffix);
}
static void removeFromMapCI_sync(Map<String, Object> map, String key) {
  if (map == null) return;
  synchronized(getMutex(map)) {
    for (String k : cloneList(keys(map)))
      if (eqic(key, k))
        map.remove(k);
  }
}
static String trimJoin(List<String> s) {
  return trim(join(s));
}
static betterCIComparator_C betterCIComparator_instance;

static betterCIComparator_C betterCIComparator() {
  if (betterCIComparator_instance == null)
    betterCIComparator_instance = new betterCIComparator_C();
  return betterCIComparator_instance;
}

static class betterCIComparator_C implements Comparator<String> {
  public int compare(String s1, String s2) {
    if (s1 == null) return s2 == null ? 0 : -1;
    if (s2 == null) return 1;
  
    int n1 = s1.length();
    int n2 = s2.length();
    int min = Math.min(n1, n2);
    for (int i = 0; i < min; i++) {
        char c1 = s1.charAt(i);
        char c2 = s2.charAt(i);
        if (c1 != c2) {
            c1 = Character.toUpperCase(c1);
            c2 = Character.toUpperCase(c2);
            if (c1 != c2) {
                c1 = Character.toLowerCase(c1);
                c2 = Character.toLowerCase(c2);
                if (c1 != c2) {
                    // No overflow because of numeric promotion
                    return c1 - c2;
                }
            }
        }
    }
    return n1 - n2;
  }
}
static boolean fileExists(String path) {
  return path != null && new File(path).exists();
}

static boolean fileExists(File f) {
  return f != null && f.exists();
}
static String fromUTF8(byte[] bytes) {
  return fromUtf8(bytes);
}
static File remoteMechListMirrorsDir() {
  return javaxDataDir("Remote Mech Lists");
}
static Object[] muricaCredentialsPlus(Object... params) {
  return concatArrays(muricaCredentials(), params);
}
static String md5OrNull(String s) {
  return s == null ? null : md5(s);
}
static String postPageSilently(String url, Object... params) {
  return doPostSilently(litmap(params), url);
}
static Map jsonDecodeMap(String s) {
  Object o = jsonDecode(s);
  if (o instanceof List && empty((List) o))
    return new HashMap();
  if (o instanceof Map)
    return (Map) o;
  else
    throw fail("Not a JSON map: " + s);
}
static File remoteMechListMirrorMetaFile(String listName) {
  return javaxDataDir("Remote Mech Lists/" + uniqueFileNameUsingMD5_80_v2(upper(listName)) + ".meta");
}
static String struct(Object o) {
  return structure(o);
}

static String struct(Object o, structure_Data data) {
  return structure(o, data);
}
static <A, B> Map<A, B> getMultipleKeys(Map<A, B> map, A... keys) {
  Map<A, B> map2 = similarEmptyMap(map);
  if (map != null) for (A key : keys)
    map2.put(key, map.get(key));
  return map2;
}
static File remoteMechListMirrorNameFile(String listName) {
  return javaxDataDir("Remote Mech Lists/" + uniqueFileNameUsingMD5_80_v2(upper(listName)) + ".name");
}
static File localMechListFile(String listName) {
  return newFile(localMechListsDir(), uniqueFileNameUsingMD5_80_v2(listName) + ".text");
}
// This is a bit rough... finds static and non-static methods.
// It's usually just for error messages though, so no worries.

static boolean hasMethodNamed(Object obj, String method) {
  if (obj == null) return false;
  if (obj instanceof Class)
    return hasMethodNamed((Class) obj, method);
  return hasMethodNamed(obj.getClass(), method);
}

static boolean hasMethodNamed(Class c, String method) {
  while (c != null) {
    for (Method m : c.getDeclaredMethods())
      if (m.getName().equals(method))
        return true;
    c = c.getSuperclass();
  }
  return false;
}
static <A> void addIfNotNull(Collection<A> l, A a) {
  if (a != null && l != null) l.add(a);
}


static void closeAutoCloseables(Collection<AutoCloseable> l) {
  if (l != null) for (AutoCloseable c : l) { try { c.close(); } catch (Throwable __e) { _handleException(__e); }}
}
static <A> List<A> getAndClearList(Collection<A> l) {
  if (l == null) return emptyList();
  synchronized(collectionMutex(l)) {
    List<A> out = cloneList(l);
    l.clear();
    return out;
  }
}
static String quoteUnlessIdentifierOrInteger(String s) {
  return quoteIfNotIdentifierOrInteger(s);
}
static String addPrefixIfNotEmpty2(String prefix, String s) {
  return empty(s) ? "" : addPrefix(prefix, s);
}


static Set<String> staticFieldNames(Object o) {
  TreeSet<String> fields = new TreeSet();
  Class _c = _getClass(o);
  do {
    for (Field f : _c.getDeclaredFields())
      if ((f.getModifiers() & Modifier.STATIC) != 0)
        fields.add(f.getName());
    _c = _c.getSuperclass();
  } while (_c != null);
  return fields;
}
static Object getMutex(Object o) {
  return collectionMutex(o);
}
static String fromUtf8(byte[] bytes) { try {
  return new String(bytes, "UTF-8");
} catch (Exception __e) { throw rethrow(__e); } }
static Object[] concatArrays(Object[]... arrays) {
  int l = 0;
  for (Object[] a : arrays) l += l(a);
  Object[] x = new Object[l];
  int i = 0;
  for (Object[] a : arrays) if (a != null) {
    System.arraycopy(a, 0, x, i, l(a));
    i += l(a);
  }
  return x;
}

static String doPostSilently(Map urlParameters, String url) {
  return doPostSilently(makePostData(urlParameters), url);
}

static String doPostSilently(String urlParameters, String url) {
  doPost_silently.set(true);
  return doPost(urlParameters, url);
}
static boolean jsonDecode_useOrderedMaps = true;

static Object jsonDecode(final String text) {
  final List<String> tok = jsonTok(text);
  if (l(tok) == 1) return null;
  
  class Y {
    int i = 1;

    Object parse() {
      String t = tok.get(i);
      if (t.startsWith("\"")) {
        String s = unquote(tok.get(i));
        i += 2;
        return s;
      }
      if (t.equals("{"))
        return parseMap();
      if (t.equals("["))
        return this.parseList(); // avoid loading standard function "parseList"
      if (t.equals("null")) {
        i += 2; return null;
      }
      if (t.equals("false")) {
        i += 2; return false;
      }
      if (t.equals("true")) {
        i += 2; return true;
      }
      boolean minus = false;
      if (t.equals("-")) {
        minus = true;
        i += 2;
        t = get(tok, i);
      }
      if (isInteger(t)) {
        i += 2;
        if (eq(get(tok, i), ".")) {
          String x = t + "." + get(tok, i+2);
          i += 4;
          double d = parseDouble(x);
          if (minus) d = -d;
          return d;
        } else {
          long l = parseLong(t);
          if (minus) l = -l;
          return l != (int) l ? new Long(l) : new Integer((int) l);
        }
      }
      
      throw new RuntimeException("Unknown token " + (i+1) + ": " + t + ": " + text);
    }
    
    Object parseList() {
      consume("[");
      List list = new ArrayList();
      while (!tok.get(i).equals("]")) {
        list.add(parse());
        if (tok.get(i).equals(",")) i += 2;
      }
      consume("]");
      return list;
    }
    
    Object parseMap() {
      consume("{");
      Map map = jsonDecode_useOrderedMaps ? new LinkedHashMap() : new TreeMap();
      while (!tok.get(i).equals("}")) {
        String key = unquote(tok.get(i));
        i += 2;
        consume(":");
        Object value = parse();
        map.put(key, value);
        if (tok.get(i).equals(",")) i += 2;
      }
      consume("}");
      return map;
    }
    
    void consume(String s) {
      if (!tok.get(i).equals(s)) {
        String prevToken = i-2 >= 0 ? tok.get(i-2) : "";
        String nextTokens = join(tok.subList(i, Math.min(i+4, tok.size())));
        throw fail(quote(s) + " expected: " + prevToken + " " + nextTokens + " (" + i + "/" + tok.size() + ")");
      }
      i += 2;
    }
  }
  
  return new Y().parse();
}
static Map similarEmptyMap(Map m) {
  if (m instanceof TreeMap) return new TreeMap(((TreeMap) m).comparator());
  if (m instanceof LinkedHashMap) return new LinkedHashMap();
  
  // default to a hash map
  return new HashMap();
}
static File localMechListsDir() {
  return javaxDataDir("Mech Lists");
}
static String quoteIfNotIdentifierOrInteger(String s) {
  if (s == null) return null;
  return isJavaIdentifier(s) || isInteger(s) ? s : quote(s);
}
static String addPrefix(String prefix, String s) {
  return s.startsWith(prefix) ? s : prefix + s;
}


static ThreadLocal<Boolean> doPost_silently = new ThreadLocal();
static ThreadLocal<Long> doPost_timeout = new ThreadLocal();

static String doPost(Map urlParameters, String url) {
  return doPost(makePostData(urlParameters), url);
}

static String doPost(String urlParameters, String url) { try {
  URL _url = new URL(url);
  ping();
  return doPost(urlParameters, _url.openConnection(), _url);
} catch (Exception __e) { throw rethrow(__e); } }

static String doPost(String urlParameters, URLConnection conn, URL url) { try {
  boolean silently = isTrue(optParam(doPost_silently));
  Long timeout = optParam(doPost_timeout);
  setHeaders(conn);

  int l = lUtf8(urlParameters);
  if (!silently)
    print("Sending POST request: " + hideCredentials(url) + " (" + l + " bytes)");
      
  // connect and do POST
  if (timeout != null) setURLConnectionTimeouts(conn, timeout);
  ((HttpURLConnection) conn).setRequestMethod("POST");
  conn.setDoOutput(true);
  conn.setRequestProperty("Content-Length", str(l));

  OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
  writer.write(urlParameters);
  writer.flush();

  loadPage_charset.set("UTF-8");
  String contents = loadPage(conn, url, false);
  writer.close();
  return contents;
} catch (Exception __e) { throw rethrow(__e); } }
static List<String> jsonTok(String s) {
  List<String> tok = new ArrayList();
  int l = l(s);
  
  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 is not needed in rest of loop body

    // scan for non-whitespace (json strings, "null" identifier, numbers. everything else automatically becomes a one character token.)
    if (c == '\'' || c == '"') {
      char opener = c;
      ++j;
      while (j < l) {
        if (s.charAt(j) == opener) {
          ++j;
          break;
        } else if (s.charAt(j) == '\\' && j+1 < l)
          j += 2;
        else
          ++j;
      }
    } else if (Character.isLetter(c))
      do ++j; while (j < l && Character.isLetter(s.charAt(j)));
    else if (Character.isDigit(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 double parseDouble(String s) {
  return Double.parseDouble(s);
}


static int lUtf8(String s) {
  return l(utf8(s));
}


// immutable, has strong refs
final static class _MethodCache {
  final Class c;
  final HashMap<String, List<Method>> cache = new HashMap();
  
  _MethodCache(Class c) {
  this.c = c;
    _init();
  }
  
  void _init() {
    Class _c = c;
    while (_c != null) {
      for (Method m : _c.getDeclaredMethods()) {
        m.setAccessible(true);
        multiMapPut(cache, m.getName(), m);
      }
      _c = _c.getSuperclass();
    }
    
  }

  // Returns only matching methods
  Method findMethod(String method, Object[] args) { try {
    List<Method> m = cache.get(method);
    
    if (m == null) return null;
    int n = m.size();
    for (int i = 0; i < n; i++) {
      Method me = m.get(i);
      if (call_checkArgs(me, args, false))
        return me;
    }
    return null;
  } catch (Exception __e) { throw rethrow(__e); } }
}static abstract class VF1<A> {
  abstract void get(A a);
}static abstract class VF2<A, B> {
  abstract void get(A a, B b);
}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; }
  
  public String toString() { return str(get()); }
}static abstract class TokCondition {
  abstract boolean get(List<String> tok, int i); // i = N Index
}static abstract class LiveValue<A> {
  abstract Class<A> getType();
  abstract A get();
  abstract void onChange(Runnable l);
  abstract void removeOnChangeListener(Runnable l);
  
  void onChangeAndNow(Runnable l) {
    onChange(l);
    callF(l);
  }
} // thumbnailator


static class ImageSurface extends Surface {
  BufferedImage image;
  double zoomX = 1, zoomY = 1, zoomFactor = 1.5;
  private Rectangle selection;
  List tools = new ArrayList();
  Object overlay; // voidfunc(Graphics2D)
  Runnable onSelectionChange;
  static boolean verbose;
  boolean noMinimumSize = true;
  String titleForUpload;
  Object onZoom;
  boolean specialPurposed; // true = don't show image changing commands in popup menu
  boolean zoomable = true;
  boolean noAlpha; // set to true to speed up drawing if you don't use alpha
  Object interpolationMode = RenderingHints.VALUE_INTERPOLATION_BILINEAR;
  Object onNewImage;
 
  public ImageSurface() {
    this(dummyImage());
  }
  
  static BufferedImage dummyImage() {
    return new RGBImage(1, 1, new int[] { 0xFFFFFF }).getBufferedImage();
  }

  ImageSurface(MakesBufferedImage image) {
    this(image != null ? image.getBufferedImage() : dummyImage());
  }
  
  ImageSurface(BufferedImage image) {
    setImage(image);
    clearSurface = false;

    componentPopupMenu2(this, ImageSurface_popupMenuMaker());
    new ImageSurfaceSelector(this);
    
    jHandleFileDrop(this, new VF1<File>() { public void get(File f) { try {  setImage(loadBufferedImage(f)) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "setImage(loadBufferedImage(f))"; }});
  }

  public ImageSurface(RGBImage image, double zoom) {
    this(image);
    setZoom(zoom);
  }

  // point is already in image coordinates
  protected void fillPopupMenu(JPopupMenu menu, final Point point) {
    if (zoomable) {
      JMenuItem miZoomReset = new JMenuItem("Zoom 100%");
      miZoomReset.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
          setZoom(1.0);
          centerPoint(point);
        }
      });
      menu.add(miZoomReset);
  
      JMenuItem miZoomIn = new JMenuItem("Zoom in");
      miZoomIn.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
          zoomIn(zoomFactor);
          centerPoint(point);
        }
      });
      menu.add(miZoomIn);
  
      JMenuItem miZoomOut = new JMenuItem("Zoom out");
      miZoomOut.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
          zoomOut(zoomFactor);
          centerPoint(point);
        }
      });
      menu.add(miZoomOut);
  
      JMenuItem miZoomToWindow = new JMenuItem("Zoom to window");
      miZoomToWindow.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
          zoomToDisplaySize();
        }
      });
      menu.add(miZoomToWindow);
      addMenuItem(menu, "Show full screen", new Runnable() {  public void run() { try {  showFullScreen() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "showFullScreen()"; }});
      
      addMenuItem(menu, "Point: " + point.x + "," + point.y + " (image: " + image.getWidth() + "*" + image.getHeight() + ")", null);
  
      menu.addSeparator();
    }

    addMenuItem(menu, "Save image...", new Runnable() {  public void run() { try {  saveImage() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "saveImage()"; }});
    addMenuItem(menu, "Upload image...", new Runnable() {  public void run() { try {  uploadTheImage() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "uploadTheImage()"; }});
    addMenuItem(menu, "Copy image to clipboard", new Runnable() {  public void run() { try {  copyImageToClipboard(getImage()) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "copyImageToClipboard(getImage())"; }});
    if (!specialPurposed) {
      addMenuItem(menu, "Paste image from clipboard", new Runnable() {  public void run() { try {  loadFromClipboard() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "loadFromClipboard()"; }});
      addMenuItem(menu, "Load image snippet...", new Runnable() {  public void run() { try { 
        selectImageSnippet(new VF1<String>() { public void get(String imageID) { try { 
          setImage(loadImage2(imageID))
        ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "setImage(loadImage2(imageID))"; }});
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "selectImageSnippet(new VF1<String>() { public void get(String imageID) ctex {..."; }});
    }
    if (selection != null)
      addMenuItem(menu, "Crop", new Runnable() {  public void run() { try {  crop() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "crop()"; }});
    if (!specialPurposed)
      addMenuItem(menu, "No image", new Runnable() {  public void run() { try {  noImage() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "noImage()"; }});
  }
  
  void noImage() { setImage((BufferedImage) null); }
  
  void crop() {
    if (selection == null) return;
    BufferedImage img = cloneClipBufferedImage(getImage(), selection);
    selection = null;
    setImage(img);
  }
  
  void loadFromClipboard() {
    BufferedImage img = getImageFromClipboard();
    if (img != null)
      setImage(img);
  }

  void saveImage() {
    RGBImage image = new RGBImage(getImage(), null);
    JFileChooser fileChooser = new JFileChooser(getProgramDir());
    if (fileChooser.showSaveDialog(this) == JFileChooser.APPROVE_OPTION) {
      try {
        image.save(fileChooser.getSelectedFile());
      } catch (IOException e) {
        popup(e);
      }
    }
  }

  public void render(int w, int h, Graphics2D g) {
    if (verbose) _print("render");
    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, interpolationMode);
    g.setColor(Color.white);
    if (image == null)
      g.fillRect(0, 0, w, h);
    else {
      int iw = getZoomedWidth(), ih = getZoomedHeight();
      boolean alpha = !noAlpha && hasTransparency(image);
      if (alpha) g.fillRect(0, 0, w, h);
      if (eq(interpolationMode, "thumbnailator"))
        g.drawImage(Thumbnailator.createThumbnail(image, iw, ih), 0, 0, null);
      else if (interpolationMode == RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR || zoomX >= 1 || zoomY >= 1)
        g.drawImage(image, 0, 0, iw, ih, null);
      else
        g.drawImage(resizeImage(image, iw, ih), 0, 0, null); // smoother
      
      if (!alpha) {
        g.fillRect(iw, 0, w-iw, h);
        g.fillRect(0, ih, iw, h-ih);
      }
    }

    if (overlay != null) {
      if (verbose) _print("render overlay");
      pcallF(overlay, g);
    }

    if (selection != null) {
      if (verbose) _print("render selection");
      // drawRect is inclusive, selection is exclusive, so... whatever, tests show it's cool.
      drawSelectionRect(g, selection, Color.green, Color.white);
    }
  }

  public void drawSelectionRect(Graphics2D g, Rectangle selection, Color green, Color white) {
    drawSelectionRect(g, selection, green, white, zoomX, zoomY);
  }
  
  public void drawSelectionRect(Graphics2D g, Rectangle selection, Color green, Color white, double zoomX, double zoomY) {
    g.setColor(green);
    int top = (int) (selection.y * zoomY);
    int bottom = (int) ((selection.y+selection.height) * zoomY);
    int left = (int) (selection.x * zoomX);
    int right = (int) ((selection.x+selection.width) * zoomX);
    g.drawRect(left-1, top-1, right-left+1, bottom-top+1);
    g.setColor(white);
    g.drawRect(left - 2, top - 2, right - left + 3, bottom - top + 3);
  }

  public ImageSurface setZoom(double zoom) {
    setZoom(zoom, zoom);
    return this;
  }

  public void setZoom(double zoomX, double zoomY) {
    if (this.zoomX == zoomX && this.zoomY == zoomY) return;
    if (verbose) _print("Setting zoom");
    this.zoomX = zoomX;
    this.zoomY = zoomY;
    revalidate();
    repaint();
    centerPoint(new Point(getImage().getWidth()/2, getImage().getHeight()/2));

    pcallF(onZoom);
  }

  public Dimension getMinimumSize() {
    if (noMinimumSize) return new Dimension(1, 1);
    int w = getZoomedWidth();
    int h = getZoomedHeight();
    Dimension min = super.getMinimumSize();
    return new Dimension(Math.max(w, min.width), Math.max(h, min.height));
  }

  private int getZoomedHeight() {
    return (int) (image.getHeight() * zoomY);
  }

  private int getZoomedWidth() {
    return (int) (image.getWidth() * zoomX);
  }

  public void setImage(MakesBufferedImage image) {
    setImage(image.getBufferedImage());
  }
  
  public void setImage(final BufferedImage img) {
    { swing(new Runnable() {  public void run() { try { 
      BufferedImage newImage = img != null ? img : dummyImage();
      BufferedImage oldImage = image;
      image = newImage;
      if (!imagesHaveSameSize(oldImage, newImage)) {
        if (verbose) _print("New image size");
        revalidate(); // do we need this?
      }
      repaint();
      pcallF(onNewImage);
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "BufferedImage newImage = img != null ? img : dummyImage();\r\n      BufferedIma..."; }}); }
  }

  public BufferedImage getImage() {
    return image;
  }

  public double getZoomX() {
    return zoomX;
  }

  public double getZoomY() {
    return zoomY;
  }

  public Dimension getPreferredSize() {
    return new Dimension(getZoomedWidth(), getZoomedHeight());
  }

  /** returns a scrollpane with the scroll-mode prevent-garbage-drawing fix applied */
  public JScrollPane makeScrollPane() {
    JScrollPane scrollPane = new JScrollPane(this);
    scrollPane.getViewport().setScrollMode(JViewport.BACKINGSTORE_SCROLL_MODE);
    return scrollPane;
  }

  public void zoomToWindow() { zoomToDisplaySize(); }
  public void zoomToDisplaySize() {
    if (image == null) return;
    Dimension display = getDisplaySize();
    double xRatio = display.width/(double) image.getWidth();
    double yRatio = display.height/(double) image.getHeight();
    setZoom(Math.min(xRatio, yRatio));
    revalidate();
  }

  /** tricky magic to get parent scroll pane */
  private Dimension getDisplaySize() {
    Container c = getParent();
    while (c != null) {
      if (c instanceof JScrollPane)
        return c.getSize();
      c = c.getParent();
    }
    return getSize();
  }

  public void setSelection(Rectangle r) {
    if (neq(selection, r)) {
      selection = r;
      pcallF(onSelectionChange);
      repaint();
    }
  }

  public Rectangle getSelection() {
    return selection;
  }

  public RGBImage getRGBImage() {
    return new RGBImage(getImage());
  }
  
  // p is in image coordinates
  void centerPoint(Point p) {
    JScrollPane sp = enclosingScrollPane(this);
    if (sp == null) return;
      
    p = new Point((int) (p.x*getZoomX()), (int) (p.y*getZoomY()));
    final JViewport viewport = sp.getViewport();
    Dimension viewSize = viewport.getExtentSize();
    
    //_print("centerPoint " + p);
    int x = max(0, p.x-viewSize.width/2);
    int y = max(0, p.y-viewSize.height/2);
    
    //_print("centerPoint " + p + " => " + x + "/" + y);
    p = new Point(x,y);
    //_print("centerPoint " + p);
    final Point _p = p;
    awtLater(new Runnable() {  public void run() { try { 
      viewport.setViewPosition(_p);
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "viewport.setViewPosition(_p);"; }});
  }
  
  Pt pointFromEvent(MouseEvent e) {
    return pointFromComponentCoordinates(new Pt(e.getX(), e.getY()));
  }
  
  Pt pointFromComponentCoordinates(Pt p) {
    return new Pt((int) (p.x/zoomX), (int) (p.y/zoomY));
  }
  
  Pt pointToComponentCoordinates(double x, double y) {
    return new Pt((int) (x*zoomX), (int) (y*zoomY));
  }
  
  void uploadTheImage() {
    call(hotwire(/*#1007313*/"#1016427"), "go", getImage(), titleForUpload);
  }
  
  void showFullScreen() {
    showFullScreenImageSurface(getImage());
  }
  
  void zoomIn(double f) { setZoom(getZoomX()*f, getZoomY()*f); }
  void zoomOut(double f) { setZoom(getZoomX()/f, getZoomY()/f); }
}

// static function allows garbage collection 
static VF2<ImageSurface, JPopupMenu> ImageSurface_popupMenuMaker() {
  return new VF2<ImageSurface, JPopupMenu>() { public void get(ImageSurface is, JPopupMenu menu) { try { 
    Point p = is.pointFromEvent(componentPopupMenu_mouseEvent.get()).getPoint();
    is.fillPopupMenu(menu, p);
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "Point p = is.pointFromEvent(componentPopupMenu_mouseEvent.get()).getPoint();\r..."; }};
}static class Q implements AutoCloseable {
  String name = "Unnamed Queue";
  List<Runnable> q = synchroLinkedList();
  ReliableSingleThread rst = new ReliableSingleThread(new Runnable() {  public void run() { try {  _run() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "_run()"; }});
  volatile boolean retired;
  
  Q() {}
  Q(String name) {
  this.name = name;}
  
  void add(Runnable r) {
    q.add(r);
    _trigger();
  }
  
  void _trigger() {
    rst.name = name;
    rst.go();
  }
  
  void add(Object r) {
    add(toRunnable(r));
  }
  
  void _run() {
    Runnable r;
    while (licensed() && !retired && (r = syncPopFirst(q)) != null) {
      try { r.run(); } catch (Throwable __e) { _handleException(__e); }
    }
  }
  
  public void close() { retired = true; } // TODO: interrupt thread
  void done() {} // legacy function
  
  boolean isEmpty() { return q.isEmpty(); }
  int size() { return q.size(); }
}static class SimpleLiveValue<A> extends LiveValue<A> {
  Class<A> type;
  volatile A value;
  
  transient List onChange = synchroList();
  
  SimpleLiveValue(Class<A> type) {
  this.type = type;}
  SimpleLiveValue(Class<A> type, A value) {
  this.value = value;
  this.type = type;}
  
  public Class<A> getType() { return type; }
  public A get() { return value; }
  public void onChange(Runnable l) { onChange.add(l); }
  public void onChangeAndNow(Runnable l) { onChange(l); callF(l); }
  public void removeOnChangeListener(Runnable l) { onChange.remove(l); }
  
  void fireChanged() {
    pcallFAll(onChange);
  }
  
  void set(A a) { if (neq(value, a)) { value = a; fireChanged(); } }
}static class QuickException extends RuntimeException {
  public Throwable fillInStackTrace() { return this; }
  
  QuickException() {}
  QuickException(Throwable e) { super(e); }
  QuickException(String msg) { super(msg); }
  QuickException(String msg, Throwable e) { super(msg, e); }
}static class Lowest<A> {
  A best;
  double score;
  transient Object onChange;
  
  synchronized boolean isNewBest(double score) {
    return best == null || score < this.score;
  }
  
  synchronized double bestScore() {
    return best == null ? Double.NaN : score;
  }
  
  double score() { return bestScore(); }
  
  synchronized float floatScore() {
    return best == null ? Float.NaN : (float) score;
  }
  
  synchronized float floatScoreOr(float defaultValue) {
    return best == null ? defaultValue : (float) score;
  }
  
  boolean put(A a, double score) {
    boolean change = false;
    synchronized(this) {
      if (a != null && isNewBest(score)) {
        best = a;
        this.score = score;
        change = true;
      }
    }
    if (change)
      pcallF(onChange);
    return change;
  }
  
  synchronized A get() { return best; }
  synchronized boolean has() { return best != null; }
}static abstract class DynModule {
  String name, toolTip;
  PersistableThrowable _error;
  Map<String, Collection<String>> mechLists;
  Map<String, Boolean> _persistenceInfo;
  
  transient Object _host;
  transient Map timers = newWeakHashMap(); // all kinds of resources actually; value is closer helper
  transient Set<AutoCloseable> _resources = synchroHashSet();
  transient Lock lock; // set by stem
  transient boolean persistOnChangedField = true;
  transient int changeCount;
  transient Object changeCountSync = new Object();
  transient List onChange;
  transient boolean verboseTimers;
  transient ReliableSingleThread rstUpdate;
  transient Set<String> componentFieldsToKeep;
  transient Map<String, Object> transientGeneralMap = synchroHashMap();
  transient Q q; // module command queue
  
  DynModule() {
    dm_initErrorHandling();
    setMainDesktopPane((JDesktopPane) getCreatorOpt("desktop"));
  }
  
  boolean isVisible() { return isTrue(getOpt(_host, "visible")); }
  
  String moduleName() { return name; }
  
  void setModuleName(String name) {
    String oldName = this.name;
    if (!eq(name, oldName)) {
      this.name = name;
      possiblyInternalFrameTitle(vis(), name);
      vmBus_send("moduleNameChange", this, oldName, name);
    }
  }
  
  void setModuleToolTip(String toolTip) {
    this.toolTip = toolTip;
  }
  
  JComponent vis() {
    return (JComponent) getOpt(_host, "vis");
  }
  
  <A extends AutoCloseable> A ownResource(A a) {
    if (a != null)
      _resources.add(a);
    return a;
  }
  
  <A> A ownTimer(A timer) {
    if (timer instanceof AutoCloseable) ownResource((AutoCloseable) timer);
    ownTimer(timer, "cancelTimerOrInterruptThread");
    return timer;
  }
  
  void ownTimer(Object timer, Object closerHelper) {
    timers.put(timer, closerHelper);
  }
  
  void singleTimer(java.util.Timer timer) {
    stopAllTimers();
    ownTimer(timer);
  }
  
  void stopAllTimers() {
    for (AutoCloseable resource : getAndClearList(_resources)) {
      if (verboseTimers)
        print("Releasing resource: " + resource);
      try { resource.close(); } catch (Throwable __e) { _handleException(__e); }
    }
      
    { final Map<Object, Object> __361 = getAndClearMap(timers); for (Object timer : keys( __361)) { Object closerHelper =__361.get(timer); 
      if (verboseTimers)
        print("Stopping timer: " + closerHelper + " / " + timer);
      pcallFInRealOrMyMC(this, closerHelper, timer);
    }
  }}
  
  void cleanMeUp_dynModule() {
    stopAllTimers();
  }
  
  void persistMe() {
    synchronized(changeCountSync) { ++changeCount; }
    pcallFAll(onChange); callOpt(_host, "_change");
    updateMe();
  }
  
  void _change() { persistMe(); }
  void change() { persistMe(); }
  
  void updateMe() {
    rstUpdate().trigger();
  }
  
  void changeAndUpdate() { _change(); updateMe(); }
  
  boolean setField(String name, Object value) {  AutoCloseable __364 = enter(); try {
    {
      // lock lock; // this leads to too many problems
      try { // some really weird classes fail on equals() (BCEL JavaClass, I'm looking at you)
        if (eq(get(this, name), value)) return false;
      } catch (Throwable __e) { _handleException(__e); }
      set(this, name, value);
    } // releasing lock before calling _change()!
    if (persistOnChangedField && !isFalse(mapGet(_persistenceInfo, name)))
      _change();
    return true;
  } finally { _close(__364); }}
  
  <A> A setFieldAndReturn(String name, A value) {
    setField(name, value);
    return value;
  }
  
  boolean setFields(Object... params) {
    boolean change = false;
    for (int i = 0; i < l(params); i += 2)
      if (setField((String) params[i], params[i+1])) change = true;
    return change;
  }
  
  void start() {}
  
  void revisualize() {
    call(creator(), "revisualizeModule", _host);
  }
  
  AutoCloseable enter() {
    AutoCloseable c = tempSetThreadLocal(dm_currentModule_value, new WeakReference(this));
    final Object realMC = getMainClass(this);
    if (realMC != mc()) {
      c = combineAutoCloseables(tempInterceptPrint(new F1<String, Boolean>() { Boolean get(String s) { try { 
        { call(realMC, "print", s); return false; }
       } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret false with call(realMC, 'print, s);"; }}), c);
      c = combineAutoCloseables(tempSetTL(realMC_tl(), realMC), c);
    }
    return c;
  }
  
  AutoCloseable enterAndLock() {
    return combineAutoCloseables(enter(), tempLock(lock));
  }
  
  boolean setError(Throwable e) {
    setField("_error" , persistableThrowable(e));
    return true;
  }
  
  void clearError() {
    setField("_error" , null);
  }
  
  void onChange(Runnable r) {
    Lock __362 = lock; lock(__362); try {
    if (onChange == null) onChange = synchroList();
    addIfNotThere(onChange, r);
  } finally { unlock(__362); } }
  
  void onChangeAndNow(Runnable r) {
    onChange(r);
    callF(r);
  }
  
  void update() {}
  
  void unvisualize() {
    zeroAllFieldsOfTypeExcept(this, Component.class, componentFieldsToKeep);
  }
  
  List<AbstractAction> menuItems() {
    return null;
  }
  
  void enhanceFrame(Container f) {
    
    internalFramePopupMenuFromActions_threaded(f, menuItems());
    
    
  }
  
  // assume this is called in start(), so no locking
  ReliableSingleThread rstUpdate() {
    if (rstUpdate == null) rstUpdate = dm_rst(this, new Runnable() {  public void run() { try {   AutoCloseable __365 = enter(); try { update(); } finally { _close(__365); }
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "AutoCloseable __365 = enter(); try { update(); } finally { _close(__365); }"; }});
    return rstUpdate;
  }
  
  Q q() {  AutoCloseable __366 = enter(); try {
    if (q == null) {
      Lock __363 = lock; lock(__363); try {
      if (q == null) q = dm_startQ();
    } finally { unlock(__363); } }
    return q;
  } finally { _close(__366); }}
  
  <A> A withUpdate(A a) {
    rstUpdate().trigger();
    return a;
  }
  
  DynModule module() { return this; }
}

static void _registerTimer(java.util.Timer timer) {
  _registerTimer_original(timer);
  dm_currentModule().ownTimer(timer);
}
static class FixedRateTimer extends java.util.Timer {
  FixedRateTimer() { this(false); }
  FixedRateTimer(boolean daemon) { this(defaultTimerName(), daemon); }
  FixedRateTimer(String name) { this(name, false); }
  FixedRateTimer(String name, boolean daemon) {
    super(name, daemon);
    _registerTimer(this);
  }
  
  List<Entry> entries = synchroList();
  
  static  class Entry {
  static String _fieldOrder = "task firstTime period";
  TimerTask task;
  long firstTime;
  long period;
  Entry() {}
  Entry(TimerTask task, long firstTime, long period) {
  this.period = period;
  this.firstTime = firstTime;
  this.task = task;}
  public String toString() { return "Entry(" + task + ", " + firstTime + ", " + period + ")"; }}
  
  // Note: not all methods overridden; only use these ones
  
  public void scheduleAtFixedRate(TimerTask task, long delay, long period) {
    entries.add(new Entry(task, now()+delay, period));
    super.scheduleAtFixedRate(task, delay, period);
  }
  
  public void cancel() {
    entries.clear();
    super.cancel();
  }
  
  public int purge() {
    entries.clear();
    return super.purge();
  }
  
  FixedRateTimer changeRate(int newPeriod) {
    Object r = ((SmartTimerTask) first(entries).task).r;
    cancel();
    return doEvery(newPeriod, r);
  }
}static class CompilerBot {
  static boolean verbose;

  static File compileSnippet(String snippetID) {
    return compileSnippet(snippetID, "");
  }
  
  static Pair<File, String> compileSnippet2(String snippetID) {
    return compileSnippet2(snippetID, "");
  }
  
  // returns jar path
  static File compileSnippet(String snippetID, String javaTarget) {
    return compileSnippet2(snippetID, javaTarget).a;
  }
  
  // returns jar path, Java source
  static Pair<File, String> compileSnippet2(String snippetID, String javaTarget) {
    String transpiledSrc = getServerTranspiled2(snippetID);
    int i = transpiledSrc.indexOf('\n');
    String libs = transpiledSrc.substring(0, Math.max(0, i));
    if (verbose)
      print("Compiling snippet: " + snippetID + ". Libs: " + libs);
    transpiledSrc = transpiledSrc.substring(i+1);
    return pair(compile(transpiledSrc, libs, javaTarget, snippetID), transpiledSrc);
  }

  static File compile(String src) {
    return compile(src, "");
  }
  
  static File compile(String src, String libs) {
    return compile(src, libs, null);
  }

  static File compile(String src, String dehlibs, String javaTarget) {
    return compile(src, dehlibs, javaTarget, null);
  }
  
  static File compile(String src, String dehlibs, String javaTarget, String progID) {
    if (verbose)
      print("Compiling " + l(src) + " chars");
      
    // Note: This is different from the calculation in x30
    // (might lead to programs being compiled twice)
    String md5 = md5(dehlibs + "\n" + src + "\n" + progID);
    File jar = getJarFile(md5);
    if (jar == null || jar.length() <= 22) {
      // have to compile
      
      List<String> mainClass = findMainClass(javaTok(src));
      boolean canRename = mainClass != null && useDummyMainClasses() && isSnippetID(progID) && !tok_classHasModifier(mainClass, "public");
      if (verbose)
        print("useRenaming: " + useDummyMainClasses() + ", canRename: " + canRename + ", progID: " + progID);

      javaCompileToJar_optionalRename(src, dehlibs, jar, canRename ? progID : null, progID);
    } else {
      if (verbose)
        print("Getting classes from cache (" + jar.getAbsolutePath() + ", " + jar.length() + " bytes)");
      touchFile(jar); // so we can find the unused ones easier
    }
    
    return jar;
  }

  static File getJarFile(String md5) {
    assertTrue(isMD5(md5));
    return new File(getCacheProgramDir("#1002203"), md5 + ".jar");
  }
}static class Pair<A, B> implements Comparable<Pair<A, B>> {
  A a;
  B b;

  Pair() {}
  Pair(A a, B b) {
  this.b = b;
  this.a = a;}
  
  public int hashCode() {
    return hashCodeFor(a) + 2*hashCodeFor(b);
  }
  
  public boolean equals(Object o) {
    if (o == this) return true;
    if (!(o instanceof Pair)) return false;
    Pair t = (Pair) o;
    return eq(a, t.a) && eq(b, t.b);
  }
  
  public String toString() {
    return "<" + a + ", " + b + ">";
  }
  
  public int compareTo(Pair<A, B> p) {
    if (p == null) return 1;
    int i = ((Comparable<A>) a).compareTo(p.a);
    if (i != 0) return i;
    return ((Comparable<B>) b).compareTo(p.b);
  }
}abstract static class DynPrintLog extends DynModule {
  transient JTextArea ta;
  transient Lock updatePrintLog_lock = lock();
  transient StringBuffer actualPrintLog;
  
  JComponent visualize() {
    return awtEvery(
      jSection("Log", ta = moveCaretToEnd(typeWriterTextArea(getPrintLog()))),
      500, new Runnable() {  public void run() { try {  updatePrintLog(); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "updatePrintLog();"; }});
  }
  
  void updatePrintLog() {
    // TODO: optimize
    Lock __81 = updatePrintLog_lock; lock(__81); try {
    if (ta != null) setText(ta, getPrintLog());
  } finally { unlock(__81); } }
  
  JTextArea myPrintLogComponent() { return ta; }
  
  void enableWordWrap() {
    enableWordWrapForTextArea(ta);
  }
  
  String getPrintLog() {
    if (actualPrintLog == null)
      actualPrintLog = liveLocalPrintLog_realMC(this);
    return str(actualPrintLog);
  }
}static class JavaXClassLoader extends URLClassLoader {
  String progID;
  List<File> files;
  Set<String> triedToLoad = synchroSet();
  Set<Class> loadedClasses = synchroSet();
  boolean retired;
  Object retiredMarker;
  
  JavaXClassLoader(String progID, List<File> files) {
    this(progID, files, getSystemClassLoader());
  }
  
  JavaXClassLoader(String progID, List<File> files, ClassLoader parent) {
    super(new URL[0], parent);
    this.progID = progID;
    this.files = files;
    
    { try {
      for (File f : files)
        addURL(f.toURI().toURL());
    } catch (Exception __e) { throw rethrow(__e); } }
    
    fixACCInClassLoader(this);
  }
  
  protected Class<?> findClass(String name) throws ClassNotFoundException {
    boolean triedBefore = !triedToLoad.add(name);
    try {
      Class<?> c = super.findClass(name);
      loadedClasses.add(c);
      if (eq(name, "main"))
        callOpt(javax(), "registerAMainClass", c);
      return c;
    } catch (ClassNotFoundException e) {
      throw new ClassNotFoundException("Class " + name + " not found in " + joinWithComma(map("f2s", files)) + " (progID=" + progID + ")"
        + (triedBefore ? ", tried to load before" : ""), e);
    }
  }
  
  public String toString() {
    return "JavaXClassLoader[" + systemHashCodeHex(this) + "] - " + progID;
  }
}
static abstract class F0<A> {
  abstract A get();
}static class LeftAlignedLine extends JPanel {
  LeftAlignedLine(Component... components) {
    setLayout(LetterLayout.leftAlignedRow());
    for (Component component : components)
      add(component);
  }

  public void add(String text) {
    add(new JLabel(text));
  }
}static abstract class F1<A, B> {
  abstract B get(A a);
}// you still need to implement hasNext() and next()
static abstract class IterableIterator<A> implements Iterator<A>, Iterable<A> {
  public Iterator<A> iterator() {
    return this;
  }
  
  public void remove() {
    unsupportedOperation();
  }
}static class Snippet {
  String id, title, md5, type, text;
  
  Snippet() {}
  Snippet(String id, String title) {
  this.title = title;
  this.id = id;}
  Snippet(String id, String title, String md5) {
  this.md5 = md5;
  this.title = title;
  this.id = id;}
  
  public String toString() { return id + " - " + title; }
  
  public boolean equals(Object o) { return stdEq2(this, o); }
public int hashCode() { return stdHash2(this); }
}static class BetterLabel extends JLabel {
  boolean autoToolTip = true;
  
  BetterLabel() {
    // Listeners given out to componentPopupMenu must not directly
    // reference the outer object (-> weak map problem).
    final WeakReference < BetterLabel > me = new WeakReference(this);
    componentPopupMenu(this, BetterLabel_menuItems(me));
  }
  
  BetterLabel(String text) {
    this();
    this.setText(text);
  }
  
  public void setText(String text) {
    super.setText(text);
    if (autoToolTip)
      if (!swic(text, "<html>")) // HTML labels make super-huge, confusing tool tips
        setToolTipText(nullIfEmpty(text));
  }
}

// moved outside of class for GC reasons (see above)
static VF1<JPopupMenu> BetterLabel_menuItems(final WeakReference<BetterLabel> me) {
  return new VF1<JPopupMenu>() { public void get(JPopupMenu menu) { try { 
    addMenuItem(menu, "Copy text to clipboard", new Runnable() {  public void run() { try { 
      copyTextToClipboard(me.get().getText());
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "copyTextToClipboard(me.get().getText());"; }});
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "addMenuItem(menu, \"Copy text to clipboard\", r {\r\n      copyTextToClipboard(me..."; }};
}// elements are put to front when added (not when accessed)
static class MRUCache<A, B> extends LinkedHashMap<A, B> {
  int maxSize = 10;

  MRUCache() {}
  MRUCache(int maxSize) {
  this.maxSize = maxSize;}
  
  protected boolean removeEldestEntry(Map.Entry eldest) {
    return size() > maxSize;
  }
}static abstract class CloseableIterableIterator<A> extends IterableIterator<A> implements AutoCloseable {
  public void close() throws Exception {}
}static class ExpiringMap2<A, B> extends AbstractMap<A, B> {
  Map<A, Pair<Long, B>> byKey = new HashMap();      // key -> pair(expiry sys time, value)
  PriorityBlockingQueue < Pair < Long , A > > queue = new PriorityBlockingQueue(); // queue(pair(expiry sys time, key))
  long standardExpiryTime; // ms
  boolean renewOnOverwrite = true, renewOnGet;
  Object onChange;
  // new RestartableCountdown countdown; // TODO
  
  ExpiringMap2() {}
  ExpiringMap2(long standardExpiryTime) {
  this.standardExpiryTime = standardExpiryTime;}
  ExpiringMap2(long standardExpiryTime, Object onChange) {
  this.onChange = onChange;
  this.standardExpiryTime = standardExpiryTime;}
  
  synchronized boolean clean() {
    boolean changes = false;
    Pair<Long, A> p;
    while ((p = queue.peek()) != null && sysTime() >= p.a) {
      p = queue.poll();
      
      Pair<Long, B> v = byKey.get(p.b);
      if (v != null /*&& v.a == p.a*/) {
        
        byKey.remove(p.b);
        changes = true;
        change();
      }
    }
    return changes;
  }
  
  void change() { callF(onChange); }
  
  synchronized public B put(A a, B b) {
    clean();
    long timeout = sysTime()+standardExpiryTime;
    Pair<Long, B> p = byKey.get(a);
    if (p != null && renewOnOverwrite)
      queue.remove(new Pair(p.a, a));
    byKey.put(a, pair(timeout, b));
    change();
    if (p == null || renewOnOverwrite)
      queue.add(new Pair(timeout, a));
    return pairB(p);
  }
  
  synchronized public B remove(Object a) {
    clean();
    Pair<Long, B> p = byKey.get(a);
    if (p == null) return null;
    queue.remove(new Pair(p.a, a));
    byKey.remove(a);
    change();
    return p.b;
  }
  
  synchronized public B get(Object a) {
    clean();
    Pair<Long, B> p = byKey.get(a);
    if (renewOnGet && p != null) {
      queue.remove(new Pair(p.a, a));
      long timeout = sysTime()+standardExpiryTime;
      byKey.put((A) a, pair(timeout, p.b));
      queue.add(new Pair(timeout, a));
    }
    return pairB(p);
  }
  
  synchronized public Set<Map.Entry<A,B>> entrySet() {
    clean();
    // TODO: mutex
    return synchronizedSet(mapValues("pairB", byKey).entrySet());
  }
  
  synchronized public Set<A> keySet() {
    clean();
    return synchronizedSet(byKey.keySet());
  }
  
  synchronized public int size() {
    clean();
    return byKey.size();
  }
  
  void setStandardExpiryTime(long ms) { standardExpiryTime = ms; }
  
  synchronized ExpiringMap2<A, B> setMap(Map innerMap) {
    byKey = innerMap;
    return this;
  }
}
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;}
}static class PersistableThrowable {
  String className;
  String msg;
  String stacktrace;
  
  PersistableThrowable() {}
  PersistableThrowable(Throwable e) {
    if (e == null)
      className = "Crazy Null Error";
    else {
      className = getClassName(e).replace('/', '.');
      msg = e.getMessage();
      stacktrace = getStackTrace_noRecord(e);
    }
  }
  
  public String toString() {
    return nempty(msg) ? className + ": " + msg : className;
  }
}static interface IVar<A> {
  void set(A a);
  A get();
  boolean has();
  void clear();
}static class RGBImage implements MakesBufferedImage {
  transient BufferedImage bufferedImage;
  File file;
  int width, height;
  int[] pixels;

  RGBImage() {}

  RGBImage(BufferedImage image) {
    this(image, null);
  }

  RGBImage(BufferedImage image, File file) {
    this.file = file;
    bufferedImage = image;
    width = image.getWidth();
    height = image.getHeight();
    pixels = new int[width*height];
    PixelGrabber pixelGrabber = new PixelGrabber(image, 0, 0, width, height, pixels, 0, width);
    try {
      if (!pixelGrabber.grabPixels())
        throw new RuntimeException("Could not grab pixels");
      cleanPixels(); // set upper byte to 0
    } catch (InterruptedException e) {
      throw new RuntimeException(e);
    }
  }

  /** We assume it's a file name to load from */
  RGBImage(String file) throws IOException {
    this(new File(file));
  }

  RGBImage(Dimension size, Color color) {
    this(size.width, size.height, color);
  }

  RGBImage(Dimension size, RGB color) {
    this(size.width, size.height, color);
  }

  private void cleanPixels() {
    for (int i = 0; i < pixels.length; i++)
      pixels[i] &= 0xFFFFFF;
  }

  RGBImage(int width, int height, int[] pixels) {
    this.width = width;
    this.height = height;
    this.pixels = pixels;
  }

  RGBImage(int w, int h, RGB[] pixels) {
    this.width = w;
    this.height = h;
    this.pixels = asInts(pixels);
  }

  public static int[] asInts(RGB[] pixels) {
    int[] ints = new int[pixels.length];
    for (int i = 0; i < pixels.length; i++)
      ints[i] = pixels[i] == null ? 0 : pixels[i].getColor().getRGB();
    return ints;
  }

  public RGBImage(int w, int h) {
    this(w, h, Color.black);
  }
  
  RGBImage(int w, int h, RGB rgb) {
    this.width = w;
    this.height = h;
    this.pixels = new int[w*h];
    int col = rgb.asInt();
    if (col != 0)
      for (int i = 0; i < pixels.length; i++)
        pixels[i] = col;
  }

  RGBImage(RGBImage image) {
    this(image.width, image.height, copyPixels(image.pixels));
  }

  RGBImage(int width, int height, Color color) {
    this(width, height, new RGB(color));
  }

  RGBImage(File file) throws IOException {
    this(javax.imageio.ImageIO.read(file));
  }

  private static int[] copyPixels(int[] pixels) {
    int[] copy = new int[pixels.length];
    System.arraycopy(pixels, 0, copy, 0, pixels.length);
    return copy;
  }

  public int getIntPixel(int x, int y) {
    if (inRange(x, y))
      return pixels[y * width + x];
    else
      return 0xFFFFFF;
  }

  public static RGB asRGB(int packed) {
    int r = (packed >> 16) & 0xFF;
    int g = (packed >> 8) & 0xFF;
    int b = packed & 0xFF;
    return new RGB(r / 255f, g / 255f, b / 255f);
  }

  public RGB getRGB(int x, int y) {
    if (inRange(x, y))
      return asRGB(pixels[y * width + x]);
    else
      return new RGB(0xFFFFFF);
  }

  /** alias of getRGB - I kept typing getPixel instead of getRGB all the time, so I finally created it */
  RGB getPixel(int x, int y) {
    return getRGB(x, y);
  }
  
  RGB getPixel(Pt p) { return getPixel(p.x, p.y); }

  public int getWidth() { return width; }
  public int getHeight() { return height; }
  int w() { return width; }
  int h() { return height; }

  /** Attention: cached, i.e. does not change when image itself changes */
  /** @NotNull */
  public BufferedImage getBufferedImage() {
    if (bufferedImage == null) {
      bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
      //bufferedImage.setData(Raster.createRaster(new SampleModel()));
      for (int y = 0; y < height; y++)
        for (int x = 0; x < width; x++)
          bufferedImage.setRGB(x, y, pixels[y*width+x]);
    }
    return bufferedImage;
  }

  RGBImage clip(Rect r) {
    return r == null ? null : clip(r.getRectangle());
  }
  
  RGBImage clip(Rectangle r) {
    r = fixClipRect(r);
    if (r.x == 0 && r.y == 0 && r.width == width && r.height == height) return this;
    int[] newPixels;
    try {
      newPixels = new int[r.width*r.height];
    } catch (RuntimeException e) {
      System.out.println(r);
      throw e;
    }
    for (int y = 0; y < r.height; y++) {
      System.arraycopy(pixels, (y+r.y)*width+r.x, newPixels, y*r.width, r.width);
    }
    return new RGBImage(r.width, r.height, newPixels);
  }

  private Rectangle fixClipRect(Rectangle r) {
    r = r.intersection(new Rectangle(0, 0, width, height));
    if (r.isEmpty())
      r = new Rectangle(r.x, r.y, 0, 0);
    return r;
  }

  public File getFile() {
    return file;
  }

  /** can now also do GIF (not just JPEG) */
  public static RGBImage load(String fileName) {
    return load(new File(fileName));
  }

  /** can now also do GIF (not just JPEG) */
  public static RGBImage load(File file) {
    try {
      BufferedImage bufferedImage = javax.imageio.ImageIO.read(file);
      return new RGBImage(bufferedImage);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }

  public int getInt(int x, int y) {
    return pixels[y * width + x];
  }

  public void save(File file) throws IOException {
    String name = file.getName().toLowerCase();
    String type;
    if (name.endsWith(".png")) type = "png";
    else if (name.endsWith(".jpg") || name.endsWith(".jpeg")) type = "jpeg";
    else throw new IOException("Unknown image extension: " + name);
    javax.imageio.ImageIO.write(getBufferedImage(), type, file);
  }

  public static RGBImage dummyImage() {
    return new RGBImage(1, 1, new int[] {0xFFFFFF});
  }

  public int[] getPixels() {
    return pixels;
  }
  
  void setPixel(int x, int y, int r, int g, int b) {
    if (x >= 0 && y >= 0 && x < width && y < height)
      pixels[y*width+x] = (limitToUByte(r) << 16) | (limitToUByte(g) << 8) | limitToUByte(b);
  }

  public void setPixel(int x, int y, RGB rgb) {
    if (x >= 0 && y >= 0 && x < width && y < height)
      pixels[y*width+x] = rgb.asInt();
  }

  public void setPixel(int x, int y, Color color) {
    setPixel(x, y, new RGB(color));
  }

  public void setPixel(int x, int y, int rgb) {
    if (x >= 0 && y >= 0 && x < width && y < height)
      pixels[y*width+x] = rgb;
  }
  
  void setPixel(Pt p, RGB rgb) { setPixel(p.x, p.y, rgb); }
  void setPixel(Pt p, Color color) { setPixel(p.x, p.y, color); }

  public RGBImage copy() {
    return new RGBImage(this);
  }

  public boolean inRange(int x, int y) {
    return x >= 0 && y >= 0 && x < width && y < height;
  }

  public Dimension getSize() {
    return new Dimension(width, height);
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;

    RGBImage rgbImage = (RGBImage) o;

    if (height != rgbImage.height) return false;
    if (width != rgbImage.width) return false;
    if (!Arrays.equals(pixels, rgbImage.pixels)) return false;

    return true;
  }

  @Override
  public int hashCode() {
    int result = width;
    result = 31 * result + height;
    result = 31 * result + Arrays.hashCode(pixels);
    return result;
  }

  public String getHex(int x, int y) {
    return getPixel(x, y).getHexString();
  }

  public RGBImage clip(int x, int y, int width, int height) {
    return clip(new Rectangle(x, y, width, height));
  }

  public RGBImage clipLine(int y) {
    return clip(0, y, width, 1);
  }

  public int numPixels() {
    return width*height;
  }
}

static class MechMode {
  Object readMode;
  Object writeMode;
  MechMode() {}
  MechMode(Object readMode, Object writeMode) {
  this.writeMode = writeMode;
  this.readMode = readMode;}
  public String toString() { return "MechMode(" + readMode + ", " + writeMode + ")"; }public boolean equals(Object o) {
    if (!(o instanceof MechMode)) return false;
    MechMode x = (MechMode) ( o);
    return eq(readMode, x.readMode) && eq(writeMode, x.writeMode);
  }
  
  public int hashCode() {
    int h = -866263200;
    h = h*2+_hashCode(readMode);
    h = h*2+_hashCode(writeMode);
    return h;
  }
  }static class Cache<A> {
  Object maker; // func -> A
  A value;
  long loaded;
  static boolean debug;
  long changeCount;
  Lock lock = lock();
  
  Cache() {}
  Cache(Object maker) {
  this.maker = maker;}

  A get() {
    if (hasLock(lock)) return value; // Must be called from within maker
    Lock __370 = lock; lock(__370); try {
    if (loaded == 0) {
      value = make();
      changeCount++;
      loaded = sysNow();
    }
    return value;
  } finally { unlock(__370); } }

  void clear() {
    Lock __371 = lock; lock(__371); try {
    if (debug && loaded != 0)
      print("Clearing cache");
    value = null;
    changeCount++;
    loaded = 0;
  } finally { unlock(__371); } }

  // clear if older than x seconds
  // 0 does not do anything
  void clear(double seconds) {
    Lock __372 = lock; lock(__372); try {
    if (seconds != 0 && loaded != 0 && sysNow() >= loaded+seconds*1000)
      clear();
  } finally { unlock(__372); } }
  
  // override
  void set(A a) {
    Lock __373 = lock; lock(__373); try {
    value = a;
    ++changeCount;
    loaded = sysNow();
  } finally { unlock(__373); } }
  
  A make() {
    return (A) callF(maker);
  }
}

static class Rect {
  int x, y, w, h;
  
  Rect() {}
  Rect(Rectangle r) {
    x = r.x;
    y = r.y;
    w = r.width;
    h = r.height;
  }
  Rect(int x, int y, int w, int h) {
  this.h = h;
  this.w = w;
  this.y = y;
  this.x = x;}
  Rect(Pt p, int w, int h) {
  this.h = h;
  this.w = w; x = p.x; y = p.y; }
  Rect(Rect r) { x = r.x; y = r.y; w = r.w; h = r.h; }
  
  Rectangle getRectangle() {
    return new Rectangle(x, y, w, h);
  }
  
  public boolean equals(Object o) { return stdEq2(this, o); }
public int hashCode() { return stdHash2(this); }
  
  public String toString() {
    return x + "," + y + " / " + w + "," + h;
  }
  
  int x2() { return x + w; }
  int y2() { return y + h; }
  
  boolean contains(Pt p) {
    return contains(p.x, p.y);
  }
  
  boolean contains(int _x, int _y) {
    return _x >= x && _y >= y && _x < x+w && _y < y+h;
  }
  
  boolean empty() { return w <= 0 || h <= 0; }
}static class Pt {
  int x, y;
  
  Pt() {}
  Pt(Point p) {
    x = p.x;
    y = p.y;
  }
  Pt(int x, int y) {
  this.y = y;
  this.x = x;}
  
  Point getPoint() {
    return new Point(x, y);
  }
  
  public boolean equals(Object o) { return stdEq2(this, o); }
public int hashCode() { return stdHash2(this); }
  
  public String toString() {
    return x + ", " + y;
  }
}static class ReliableSingleThread implements Runnable {
  Object runnable;
  boolean trigger;
  Thread thread;
  String name = "Single Thread";
  F0<AutoCloseable> enter; // optional ownership marker, e.g. for DynModules
  
  ReliableSingleThread(Object runnable) {
  this.runnable = runnable;}
  
  void trigger() { go(); }
  synchronized void go() {
    trigger = true;
    if (!running()) {
       AutoCloseable __381 = callF(enter); try {
      thread = startThread(name, new Runnable() {  public void run() { try {  _run(); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "_run();"; }});
    } finally { _close(__381); }}
  }
  public void run() { go(); }
  void get() { go(); } // so you can use the ! syntax
  
  synchronized boolean running() { return thread != null; }
  
  // use only if this is the last time you trigger this
  void triggerAndWait() {
    trigger();
    while (running()) sleep(1);
  }
  
  void _run() {
    while (licensed()) {
      synchronized(this) {
        if (!trigger) {
          thread = null;
          break;
        }
        trigger = false;
      }
      pcallF(runnable);
    }
  }
  
  synchronized void cancel() {
    cancelAndInterruptThread(thread);
    thread = null;
  }
}static class ImageSurfaceSelector extends MouseAdapter {
  ImageSurface is;
  Point startingPoint;
  boolean enabled = true;
  static boolean verbose = false;

  ImageSurfaceSelector(ImageSurface is) {
  this.is = is;
    if (containsInstance(is.tools, ImageSurfaceSelector.class)) return;
    is.tools.add(this);
    is.addMouseListener(this);
    is.addMouseMotionListener(this);
  }

  public void mousePressed(MouseEvent evt) {
    if (verbose) print("mousePressed");
    if (evt.getButton() != MouseEvent.BUTTON1) return;
    if (enabled)
      startingPoint = getPoint(evt);
  }

  public void mouseDragged(MouseEvent e) {
    if (verbose) print("mouseDragged");
    if (startingPoint != null) {
      Point endPoint = getPoint(e);
      Rectangle r = new Rectangle(startingPoint, new Dimension(endPoint.x-startingPoint.x+1, endPoint.y-startingPoint.y+1));
      normalize(r);
      r.width = min(r.width, is.getImage().getWidth()-r.x);
      r.height = min(r.height, is.getImage().getHeight()-r.y);
      is.setSelection(r);
    }
    if (verbose) print("mouseDragged done");
  }

  public static void normalize(Rectangle r) {
    if (r.width < 0) {
      r.x += r.width;
      r.width = -r.width;
    }
    if (r.height < 0) {
      r.y += r.height;
      r.height = -r.height;
    }
  }

  public void mouseReleased(MouseEvent e) {
    if (verbose) print("mouseReleased");
    mouseDragged(e);
    if (getPoint(e).equals(startingPoint))
      is.setSelection(null);
    startingPoint = null;
  }
  
  Point getPoint(MouseEvent e) {
    return new Point((int) (e.getX()/is.getZoomX()), (int) (e.getY()/is.getZoomY()));
  }
}static class RGB {
  public float r, g, b; // can't be final cause persistence
  
  RGB() {}
  
  public RGB(float r, float g, float b) {
    this.r = r;
    this.g = g;
    this.b = b;
  }

  public RGB(double r, double g, double b) {
    this.r = (float) r;
    this.g = (float) g;
    this.b = (float) b;
  }

  public RGB(int rgb) {
    this(new Color(rgb));
  }
  
  public RGB(double brightness) {
    this.r = this.g = this.b = max(0f, min(1f, (float) brightness));
  }

  public RGB(Color color) {
    this.r = color.getRed()/255f;
    this.g = color.getGreen()/255f;
    this.b = color.getBlue()/255f;
  }

  public RGB(String hex) {
    int i = l(hex)-6;
    r = Integer.parseInt(hex.substring(i, i+2), 16)/255f;
    g = Integer.parseInt(hex.substring(i+2, i+4), 16)/255f;
    b = Integer.parseInt(hex.substring(i+4, i+6), 16)/255f;
  }

  public float getComponent(int i) {
    return i == 0 ? r : i == 1 ? g : b;
  }

  public Color getColor() {
    return new Color(r, g, b);
  }

  public static RGB newSafe(float r, float g, float b) {
    return new RGB(Math.max(0, Math.min(1, r)), Math.max(0, Math.min(1, g)), Math.max(0, Math.min(1, b)));
  }

  int asInt() { return getColor().getRGB() & 0xFFFFFF; }
  int getInt() { return getColor().getRGB() & 0xFFFFFF; }

  public float getBrightness() {
    return (r+g+b)/3.0f;
  }

  public String getHexString() {
    return Integer.toHexString(asInt() | 0xFF000000).substring(2).toUpperCase();
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (!(o instanceof RGB)) return false;

    RGB rgb = (RGB) o;

    if (Float.compare(rgb.b, b) != 0) return false;
    if (Float.compare(rgb.g, g) != 0) return false;
    if (Float.compare(rgb.r, r) != 0) return false;

    return true;
  }

  @Override
  public int hashCode() {
    int result = (r != +0.0f ? Float.floatToIntBits(r) : 0);
    result = 31 * result + (g != +0.0f ? Float.floatToIntBits(g) : 0);
    result = 31 * result + (b != +0.0f ? Float.floatToIntBits(b) : 0);
    return result;
  }

  public boolean isBlack() {
    return r == 0f && g == 0f && b == 0f;
  }

  public boolean isWhite() {
    return r == 1f && g == 1f && b == 1f;
  }

  public String toString() {
    return getHexString();
  }
  
  int redInt() { return iround(r*255); }
  int greenInt() { return iround(g*255); }
  int blueInt() { return iround(b*255); }
}static interface MakesBufferedImage {
  BufferedImage getBufferedImage();
  int getWidth();
  int getHeight();
}static class LetterLayout implements LayoutManager {
  private String[] lines;
  private Map<String, Component> map = new TreeMap<String, Component>();
  private RC[] rows;
  private RC[] cols;
  private Cell[][] cells;
  private int spacingX = 10, spacingY = 10;
  private int insetTop, insetBottom, insetLeft, insetRight;
  private int template;
  private boolean formWideLeftSide, formWideRightSide;

  private static final int STALACTITE = 1, LEFT_ALIGNED_ROW = 2, CENTERED_ROW = 3, FORM = 4, RIGHT_ALIGNED_ROW = 5;
  private boolean debug;

  public void setLeftBorder(int border) {
    insetLeft = border;
  }

  public void setRightBorder(int border) {
    insetRight = border;
  }

  public static JComponent withBorder(JComponent component, int border) {
    JPanel panel = new JPanel(new LetterLayout("C").setBorder(border));
    panel.add("C", component);
    return panel;
  }

  public static JPanel panel(String... lines) {
    return new JPanel(new LetterLayout(lines));
  }

  public static JPanel stalactitePanel() {
    return new JPanel(stalactite());
  }

  static class DummyComponent extends JComponent {
  }

  /**
   * info about one matrix cell
   */
  static class Cell {
    boolean aux; // part of a larger cell, but not top-left corner
    int minWidth, minHeight;
    Component component;
    int colspan, rowspan;
    double weightX, weightY;
  }

  /**
   * info about one matrix row / column
   */
  static class RC {
    int min;
    double weightSum;
    int start;
    int minEnd;
  }

  private LetterLayout(int template) {
    this.template = template;
  }

  public LetterLayout(String... lines) {
    this.lines = lines;
  }

  public void removeLayoutComponent(Component component) {
    map.values().remove(component);
  }

  public void layoutContainer(Container container) {
    prepareLayout(container);

    // do layout

    if (debug)
      System.out.println("Container size: " + container.getSize());

    Insets insets = getInsets(container);
    for (int r = 0; r < rows.length; r++) {
      for (int i = 0; i < cols.length;) {
        Cell cell = cells[i][r];
        if (cell.aux)
          ++i;
        else {
          if (cell.component != null) {
            int x1 = cols[i].start;
            int y1 = rows[r].start;
            int x2 = i + cell.colspan < cols.length ? cols[i + cell.colspan].start - spacingX : container.getWidth() - insets.right;
            int y2 = r + cell.rowspan < rows.length ? rows[r + cell.rowspan].start - spacingY : container.getHeight() - insets.bottom;

            if (debug)
              System.out.println("Layouting ("+i+", "+r+", " + cell.component.getClass().getName() + "): "+x1+" "+y1+" "+x2+" "+y2);

            cell.component.setBounds(x1, y1, x2 - x1, y2 - y1);
          }
          i += cells[i][r].colspan;
        }
      }
    }
  }

  private void prepareLayout(Container container) {
    applyTemplate(container);

    int numRows = lines.length, numCols = lines[0].length();
    for (int i = 1; i < numRows; i++) if (lines[i].length() != numCols)
      throw new IllegalArgumentException("Lines have varying length");
    cells = new Cell[numCols][numRows];
    rows = new RC[numRows];
    cols = new RC[numCols];

    for (int r = 0; r < numRows; r++) rows[r] = new RC();
    for (int i = 0; i < numCols; i++) cols[i] = new RC();
    for (int r = 0; r < numRows; r++) for (int i = 0; i < numCols; i++) cells[i][r] = new Cell();

    // define cells

    for (int r = 0; r < numRows; r++) {
      String line = lines[r];
      for (int i = 0; i < numCols;) {
        Cell cell = cells[i][r];
        if (cell.aux) {
          ++i;
          continue;
        }
        char ch = line.charAt(i);
        int iNext = i;
        do ++iNext; while (iNext < numCols && ch == line.charAt(iNext));
        int rNext = r;
        do ++rNext; while (rNext < numRows && ch == lines[rNext].charAt(i));

        cell.weightX = numCols == 1 || iNext > i + 1 ? 1.0 : 0.0;
        cell.weightY = numRows == 1 || rNext > r + 1 ? 1.0 : 0.0;

        Component c = map.get(String.valueOf(ch));
        cell.component = c;
        if (c != null) {
          cell.minWidth = c.getMinimumSize().width + spacingX;
          cell.minHeight = getMinimumHeight(c) + spacingY;
        }
        cell.colspan = iNext - i;
        cell.rowspan = rNext - r;

        if (cell.colspan == 1)
          cols[i].min = Math.max(cols[i].min, cell.minWidth);
        if (cell.rowspan == 1)
          rows[r].min = Math.max(rows[r].min, cell.minHeight);

        for (int r2 = r; r2 < rNext; r2++)
          for (int i2 = i; i2 < iNext; i2++)
            if (r2 != r || i2 != i)
              cells[i2][r2].aux = true;

        i = iNext;
      }
    }

    // determine minStarts, weightSums

    while (true) {
      for (int i = 0; i < numCols; i++) {
        int minStart = i == 0 ? 0 : cols[i - 1].minEnd;
        double weightStart = i == 0 ? 0.0 : cols[i - 1].weightSum;
        for (int r = 0; r < numRows; r++) {
          Cell cell = cells[i][r];
          if (!cell.aux) {
            RC rc = cols[i + cell.colspan - 1];
            rc.minEnd = Math.max(rc.minEnd, minStart + cell.minWidth);
            rc.weightSum = Math.max(rc.weightSum, weightStart + cell.weightX);
          }
        }
      }

      for (int r = 0; r < numRows; r++) {
        int minStart = r == 0 ? 0 : rows[r - 1].minEnd;
        double weightStart = r == 0 ? 0.0 : rows[r - 1].weightSum;
        for (int i = 0; i < numCols; i++) {
          Cell cell = cells[i][r];
          if (!cell.aux) {
            RC rc = rows[r + cell.rowspan - 1];
            rc.minEnd = Math.max(rc.minEnd, minStart + cell.minHeight);
            rc.weightSum = Math.max(rc.weightSum, weightStart + cell.weightY);
          }
        }
      }

      if (allWeightsZero(cols)) {
        for (int r = 0; r < numRows; r++)
          for (int i = 0; i < numCols; i++)
            cells[i][r].weightX = 1.0;
        continue;
      }

      if (allWeightsZero(rows)) {
        for (int r = 0; r < numRows; r++)
          for (int i = 0; i < numCols; i++)
            cells[i][r].weightY = 1.0;
        continue;
      }

      break;
    }

    // determine row, col starts

    Insets insets = getInsets(container);
    determineStarts(cols, insets.left, container.getWidth() - insets.left - insets.right + spacingX, spacingX);
    determineStarts(rows, insets.top, container.getHeight() - insets.top - insets.bottom + spacingY, spacingY);
  }

  private boolean allWeightsZero(RC[] rcs) {
    for (int i = 0; i < rcs.length; i++)
      if (rcs[i].weightSum != 0.0)
        return false;
    return true;
  }

  private static int getMinimumHeight(Component c) {
    /*if (c instanceof JTextArea) {
      return (int) ((JTextArea) c).getUI().getRootView((JTextArea) c).getPreferredSpan(javax.swing.text.View.Y_AXIS);
    }*/
    return c.getMinimumSize().height;
  }

  private void applyTemplate(Container container) {
    if (template == STALACTITE) {
      Component[] components = container.getComponents();

      lines = new String[components.length + 2];
      map.clear();
      for (int i = 0; i < components.length; i++) {
        String s = String.valueOf(makeIndexChar(i));
        map.put(s, components[i]);
        lines[i] = s;
      }
      lines[components.length] = lines[components.length + 1] = " ";
    } else if (template == FORM) {
      /* old method of calculating numRows:
      int numRows = 0;
      for (String key : map.keySet()) {
        if (key.length() == 1)
          numRows = Math.max(numRows, Character.toLowerCase(key.charAt(0))-'a');
      }*/
      Component[] components = container.getComponents();
      int numRows = components.length/2;

      lines = new String[numRows+2];
      map.clear();
      for (int row = 0; row < numRows; row++) {
        String lower = String.valueOf(makeIndexChar(row));
        String upper = String.valueOf(makeAlternateIndexChar(row));
        Component rightComponent = components[row * 2 + 1];
        if (rightComponent instanceof DummyComponent)
          upper = lower;
        lines[row] = (formWideLeftSide ? lower + lower : lower) + (formWideRightSide ? upper + upper : upper);
        map.put(lower, components[row*2]);
        if (!(rightComponent instanceof DummyComponent))
          map.put(upper, rightComponent);
      }
      lines[numRows] = lines[numRows+1] = (formWideLeftSide ? "  " : " ") + (formWideRightSide ? "  " : " ");
    } else if (template == LEFT_ALIGNED_ROW) {
      lines = new String[] { makeSingleRow(container) + RIGHT_CHAR + RIGHT_CHAR };
    } else if (template == CENTERED_ROW) {
      lines = new String[] { "" + LEFT_CHAR + LEFT_CHAR + makeSingleRow(container) + RIGHT_CHAR + RIGHT_CHAR };
    } else if (template == RIGHT_ALIGNED_ROW) {
      lines = new String[] { "" + LEFT_CHAR + LEFT_CHAR + makeSingleRow(container) };
    }
  }

  private String makeSingleRow(Container container) {
    Component[] components = container.getComponents();
    StringBuffer buf = new StringBuffer();
    map.clear();
    for (int i = 0; i < components.length; i++) {
      String s = String.valueOf(makeAlternateIndexChar(i));
      map.put(s, components[i]);
      buf.append(s);
    }
    return buf.toString();
  }

  private static void determineStarts(RC[] rcs, int start, int totalSize, int spacing) {
    int minTotal = rcs[rcs.length - 1].minEnd;
    double weightSum = rcs[rcs.length - 1].weightSum;
    //System.out.println("totalSize="+totalSize+",minTotal="+minTotal+",weightSum="+weightSum);
    int spare = (int) ((totalSize - minTotal) / (weightSum == 0.0 ? 1.0 : weightSum));
    int x = start, minSum = 0;
    double prevWeightSum = 0.0;
    for (int i = 0; i < rcs.length; i++) {
      int width = rcs[i].minEnd - minSum + (int) ((rcs[i].weightSum - prevWeightSum) * spare) - spacing;
      //System.out.println("i="+i+",prevws="+prevWeightSum+",ws="+rcs[i].weightSum+",min="+rcs[i].min+",width="+width);
      rcs[i].start = x;
      x += width + spacing;
      prevWeightSum = rcs[i].weightSum;
      minSum = rcs[i].minEnd;
    }
  }

  public void addLayoutComponent(String s, Component component) {
    map.put(s, component);
  }

  public Dimension minimumLayoutSize(Container container) {
    prepareLayout(container);
    Insets insets = getInsets(container);
    Dimension result = new Dimension(
      insets.left + cols[cols.length - 1].minEnd + insets.right - spacingX,
      insets.top + rows[rows.length - 1].minEnd + insets.bottom - spacingY);
    return result;
  }

  private Insets getInsets(Container container) {
    Insets insets = container.getInsets();
    return new Insets(insets.top + insetTop,
      insets.left + insetLeft,
      insets.bottom + insetBottom,
      insets.right + insetRight);
  }

  public Dimension preferredLayoutSize(Container container) {
    return minimumLayoutSize(container);
  }

  public LetterLayout setSpacing(int x, int y) {
    spacingX = x;
    spacingY = y;
    return this;
  }

  public LetterLayout setSpacing(int spacing) {
    return setSpacing(spacing, spacing);
  }

  public LetterLayout setBorder(int top, int left, int bottom, int right) {
    insetTop = top;
    insetLeft = left;
    insetBottom = bottom;
    insetRight = right;
    return this;
  }

  public LetterLayout setBorder(int inset) {
    return setBorder(inset, inset, inset, inset);
  }

  public LetterLayout setTopBorder(int inset) {
    insetTop = inset;
    return this;
  }

  /**
   * layout components from top to bottom; add components without letters!
   */
  public static LetterLayout stalactite() {
    return new LetterLayout(STALACTITE);
  }

  /**
   * layout components from left to right; add components without letters!
   */
  public static LetterLayout leftAlignedRow() {
    return new LetterLayout(LEFT_ALIGNED_ROW);
  }

  public static LetterLayout leftAlignedRow(int spacing) {
    return leftAlignedRow().setSpacing(spacing);
  }

  /**
   * layout components from left to right, center in container; add components without letters!
   */
  public static LetterLayout centeredRow() {
    return new LetterLayout(CENTERED_ROW);
  }

  public static LetterLayout rightAlignedRow() {
    return new LetterLayout(RIGHT_ALIGNED_ROW);
  }

  public static JPanel rightAlignedRowPanel(JComponent... components) {
    return makePanel(new LetterLayout(RIGHT_ALIGNED_ROW), components);
  }

  private static JPanel makePanel(LetterLayout letterLayout, JComponent[] components) {
    JPanel panel = new JPanel(letterLayout);
    for (JComponent component : components) {
      panel.add(component);
    }
    return panel;
  }

  /**
   * layout components from top to bottom; two components per row
   */
  public static LetterLayout form() {
    LetterLayout letterLayout = new LetterLayout(FORM);
    letterLayout.formWideLeftSide = true;
    letterLayout.formWideRightSide = true;
    return letterLayout;
  }

  /**
   * layout components from top to bottom; two components per row
   * left column is small, right column is wide
   */
  public static LetterLayout formWideRightSide() {
    LetterLayout letterLayout = new LetterLayout(FORM);
    letterLayout.formWideRightSide = true;
    return letterLayout;
  }

  public static Component getDummyComponent() {
    return new DummyComponent();
  }

  public static JPanel newPanel(String... lines) {
    return new JPanel(new LetterLayout(lines));
  }

  public boolean isDebug() {
    return debug;
  }

  public void setDebug(boolean debug) {
    this.debug = debug;
  }

  public static char makeIndexChar(int idx) {
    return (char) ('a' + idx*2);
  }

  public static char makeAlternateIndexChar(int idx) {
    return (char) ('b' + idx*2);
  }

  public static char LEFT_CHAR = ',', RIGHT_CHAR = '.';

  public static void main(String[] args) {
    System.out.println((int) makeIndexChar(0));
    System.out.println((int) makeAlternateIndexChar(0));
    System.out.println((int) makeIndexChar(32000));
    System.out.println((int) makeAlternateIndexChar(32000));
    System.out.println((int) LEFT_CHAR);
    System.out.println((int) RIGHT_CHAR);
  }
}
abstract static class Surface extends JPanel {
  public boolean clearSurface = true;
  private boolean clearOnce;

  Surface() {
    setDoubleBuffered(false);
  }

  Graphics2D createGraphics2D(int width, int height, Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    g2.setBackground(getBackground());
    if (clearSurface || clearOnce) {
      g2.clearRect(0, 0, width, height);
      clearOnce = false;
    }
    return g2;
  }

  public abstract void render(int w, int h, Graphics2D g);

  public void paintImmediately(int x,int y,int w, int h) {
    RepaintManager repaintManager = null;
    boolean save = true;
    if (!isDoubleBuffered()) {
      repaintManager = RepaintManager.currentManager(this);
      save = repaintManager.isDoubleBufferingEnabled();
      repaintManager.setDoubleBufferingEnabled(false);
    }
    super.paintImmediately(x, y, w, h);

    if (repaintManager != null)
      repaintManager.setDoubleBufferingEnabled(save);
  }

  public void paint(Graphics g) {
    Dimension d = getSize();
    Graphics2D g2 = createGraphics2D(d.width, d.height, g);
    render(d.width, d.height, g2);
    g2.dispose();
  }
}



// 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, changesWritten;
  volatile java.util.Timer autoSaver;
  volatile boolean savingConcepts, dontSave, noXFullGrab;
  boolean vmBusSend = true;
  boolean initialSave = true; // set to false to avoid initial useless saving
  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;
  List saveActions = synchroList();
  Object classFinder;
  
  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();
    try {
      if (tryToGrab(allDynamic)) return this;
    } catch (Throwable e) {
      if (!exceptionMessageContains(e, "no xfullgrab"))
        printShortException(e);
      print("xfullgrab failed - loading DB of " + programID + " from disk");
    }
    return loadFromDisk(allDynamic);
  }
  
  Concepts loadFromDisk() { return loadFromDisk(false); }
  
  Concepts loadFromDisk(boolean allDynamic) {
    if (nempty(concepts)) clearConcepts();
    //DynamicObject_loading.set(true); // now done in unstructure()
    //try {
      long time = now();
      Map<Long, Concept> _concepts = concepts; // empty map
      readLocally2_allDynamic.set(allDynamic);
       AutoCloseable __155 = tempSetTL(readLocally2_classFinder, classFinder); try {
      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);
    }*/
    if (initialSave) allChanged();
    return this;
  } finally { _close(__155); }}
  
  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) unstructure(grab, allDynamic, classFinder);
      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() {
    if (dontSave) return;
    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();
      }
      
      while (nempty(saveActions))
        pcallF(popFirst(saveActions));

      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, "backups/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;
      }
    }
    try {
      saveConcepts();
    } catch (Throwable e) {
      print("Concept save failed, will try again: " + e);
    }
  }
  
  void clearConcepts() {
    concepts.clear();
    allChanged();
  }
  
  synchronized void allChanged() {
    ++changes;
    if (vmBusSend) vmBus_send("conceptsChanged", this);
  }
  
  // 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() {
    boolean shouldSave = autoSaver != null;
    if (autoSaver != null) {
      autoSaver.cancel();
      autoSaver = null;
    }
    while (savingConcepts) sleepInCleanUp(10);
    if (shouldSave)
      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 removeConceptIndex(IConceptIndex index) {
    if (conceptIndices == null) return;
    conceptIndices.remove(index);
    if (empty(conceptIndices)) conceptIndices = null;
  }
  
  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() {
    if (noXFullGrab) throw fail("no xfullgrab (DB too large)");
    Lock __154 = lock(); lock(__154); try {
    if (changes == changesWritten && !isTransient())
      return loadConceptsStructure(programID);
    return structure(cloneMap(concepts));
  } finally { unlock(__154); } }
  
  /* dev.
  Either<File, byte[]> xfullgrabGZipped() {
    lock lock();
    if (changes == changesWritten && !isTransient())
      ret loadConceptsStructure(programID);
    ret structure(cloneMap(concepts));
  }*/
  
  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();
  }
  
  void conceptChanged(Concept c) {
    allChanged();
    if (conceptIndices != null)
      for (IConceptIndex index : conceptIndices)
        index.update(c);
  }
} // class 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();
    }
  }
  
  Concept(boolean unlisted) {
    if (!unlisted) _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()))
      db_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.conceptChanged(this);
  }
  
  void _change() { change(); }
  
  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(db_mainConcepts()).get(ref);
  if (xref == null)
    xref = new XRef(ref);
  return xref;
}

// define standard concept functions to use main concepts

static void cleanMeUp_concepts() {
  if (mainConcepts != null) mainConcepts.cleanMeUp();
  mainConcepts = null;
}

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

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

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

// so we can instantiate the program to run as a bare DB bot
static List<String> myInnerClasses_list=litlist(
"VF1", null, "Derefable", "VF2", "JSection", "Var", "TokCondition", "ImageSurface", "IFieldIndex", "talkToThisVM_IO", "Str", "SimpleLiveValue", "ReliableSingleThread", "SingleComponentPanel", "DynModule", "FixedRateTimer", "ImageSurfaceSelector", "Concept", "Rect", "Pt", "ProgramScan", "F0", "LeftAlignedLine", "F1", "IterableIterator", "Snippet", "betterCIComparator_C", "RGB", "F2", "RemoteDB", "MakesBufferedImage", "Flag", "unstructure_Receiver", "ScannedBot", "Concepts", "RC", "XRef", "CloseableIterableIterator", "ExpiringMap2", "BaseXRef", "getOpt_Map", "Producer", "structure_Data", "IVar", "MechMode", "Cache", "_MethodCache", "talkTo_IO", "Matches", "LiveValue", "LetterLayout", "Surface", "Q", "QuickException", "CriticalAction", "DialogHandler", "Lowest", "JavaEval", "CompilerBot", "Pair", "DynPrintLog", "JavaXClassLoader", "DialogIO", "BetterLabel", "componentPopupMenu_Adapter", "MRUCache", "TransferableImage", "DynamicObject", "IConceptIndex", "PersistableThrowable", "talkToSubBot_IO", "RGBImage", "Android3", "SmartTimerTask", "Responder");

static List<String> myInnerClasses() {
  return myInnerClasses_list;
}

static void cancelTimerOrInterruptThread(Object timer) {
  if (timer instanceof Thread && !(timer instanceof AutoCloseable)) // AutoCloseable takes precedence
    interruptThread((Thread) timer);
  else
    cancelTimer(timer);
}
static <A, B> B pairB(Pair<A, B> p) {
  return p == null ? null : p.b;
}
static JLabel setImage(final BufferedImage img, final JLabel lbl) {
  if (lbl != null) { swing(new Runnable() {  public void run() { try {  lbl.setIcon(imageIcon(img)); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "lbl.setIcon(imageIcon(img));"; }}); }
  return lbl;
}

static JLabel setImage(JLabel lbl, BufferedImage img) {
  return setImage(img, lbl);
}

static JLabel setImage(final String imageID, final JLabel lbl) {
  if (lbl != null) { swing(new Runnable() {  public void run() { try {  lbl.setIcon(imageIcon(imageID)); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "lbl.setIcon(imageIcon(imageID));"; }}); }
  return lbl;
}

static JLabel setImage(JLabel lbl, String imageID) {
  return setImage(imageID, lbl);
}
static <A extends JComponent> void componentPopupMenu2(A component, final VF2<A, JPopupMenu> menuMaker) {
  final WeakReference < A > ref = new WeakReference(component);
  componentPopupMenu(component, new VF1<JPopupMenu>() { public void get(JPopupMenu menu) { try { 
    callF(menuMaker, ref.get(), menu);
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "callF(menuMaker, ref!, menu);"; }});
}



// onDrop: voidfunc(File), but may also return false
static <A extends JComponent> A jHandleFileDrop(A c, final Object onDrop) {
  new DropTarget(c, new DropTargetAdapter() {
    public void drop(DropTargetDropEvent e) {
      try {
        Transferable tr = e.getTransferable();
        DataFlavor[] flavors = tr.getTransferDataFlavors();
        for (DataFlavor flavor : flavors) {
          if (flavor.isFlavorJavaFileListType()) {
            e.acceptDrop(e.getDropAction());
            File file = first((List<File>) tr.getTransferData(flavor));
            if (file != null && !isFalse(callF(onDrop, file)))
              e.dropComplete(true);
            return;
          }
        }
      } catch (Throwable __e) { _handleException(__e); }
      e.rejectDrop();
    }
  });
  return c;
}

static <A extends JComponent> A jHandleFileDrop(Object onDrop, A c) {
  return jHandleFileDrop(c, onDrop);
}
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 void addMenuItem(JMenu menu, String text, Object action) {
  menu.add(jmenuItem(text, action));
}

static void addMenuItem(Menu menu, String text, Object action) {
  menu.add(menuItem(text, action));
}

static void addMenuItem(JMenu menu, JMenuItem menuItem) {
  menu.add(menuItem);
}

static JFrame showFullScreen(JComponent c) {
  return showFullScreen(defaultFrameTitle(), c);
}

static JFrame showFullScreen(final String title, final JComponent c) {
  return (JFrame) swingAndWait(new F0<Object>() { Object get() { try { 
    GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment()
      .getDefaultScreenDevice();
    if (!gd.isFullScreenSupported())
      throw fail("No full-screen mode supported!");
    boolean dec = JFrame.isDefaultLookAndFeelDecorated();
    if (dec) JFrame.setDefaultLookAndFeelDecorated(false);
    final JFrame window = new JFrame(title);
    window.setUndecorated(true);
    if (dec) JFrame.setDefaultLookAndFeelDecorated(true);
    registerEscape(window, new Runnable() {  public void run() { try {  disposeWindow(window) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "disposeWindow(window)"; }});
    window.add(wrap(c));
    gd.setFullScreenWindow(window);
    
    // Only this hides the task bar in Peppermint Linux w/Substance
    for (int i = 100; i <= 1000; i += 100)
      awtLater(i, new Runnable() {  public void run() { try {  window.toFront() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "window.toFront()"; }});
    
    return window;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment()\r\n      ..."; }});
}
static void copyImageToClipboard(Image img) {
  TransferableImage trans = new TransferableImage(img);
  Toolkit.getDefaultToolkit().getSystemClipboard().setContents( trans, null);
  vmBus_send("newClipboardContents", img);
  print("Copied image to clipboard (" + img.getWidth(null) + "*" + img.getHeight(null) + " px)");
}
static JComponent selectImageSnippet(VF1<String> onSelect) {
  return selectSnippetID_v1(onSelect);
}



static JComponent selectImageSnippet(String defaultID, VF1<String> onSelect) {
  return selectSnippetID_v1(defaultID, onSelect);
}
static BufferedImage cloneClipBufferedImage(BufferedImage src, Rectangle clip) {
  return cloneBufferedImage(clipBufferedImage(src, clip));
}

static BufferedImage cloneClipBufferedImage(BufferedImage src, Rect r) {
  return cloneBufferedImage(clipBufferedImage(src, r));
}

static BufferedImage cloneClipBufferedImage(BufferedImage src, int x, int y, int w, int h) {
  return cloneBufferedImage(clipBufferedImage(src, x, y, w, h));
}




static BufferedImage getImageFromClipboard() { try {
  Transferable t = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null);
  if (t == null) return null;
  
  List<File> l = (List<File>) ( getTransferData(t, DataFlavor.javaFileListFlavor));
  if (nempty(l))
    return loadImage2(first(l));
  
  if (t.isDataFlavorSupported(DataFlavor.imageFlavor))
    return (BufferedImage) t.getTransferData(DataFlavor.imageFlavor);
  return imageFromDataURL(getTextFromClipboard());
} catch (Exception __e) { throw rethrow(__e); } }
static void popup(final Throwable throwable) {
  popupError(throwable);
}

static void popup(final String msg) {
  print(msg);
  SwingUtilities.invokeLater(new Runnable() {
    public void run() {
      JOptionPane.showMessageDialog(null, msg);
    }
  });
}
static <A> A _print(A a) {
  return print(a);
}

static void _print() {
  print();
}
static boolean hasTransparency(BufferedImage img) {
  return img.getColorModel().hasAlpha();
}
static <A extends Component> A repaint(A c) {
  if (c != null) c.repaint();
  return c;
}
static Dimension getMinimumSize(final Component c) {
  return c == null ? null : swing(new F0<Dimension>() { Dimension get() { try {  return c.getMinimumSize();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret c.getMinimumSize();"; }});
}
static boolean imagesHaveSameSize(BufferedImage a, BufferedImage b) {
  return a != null && b != null && a.getWidth() == b.getWidth()
    && a.getHeight() == b.getHeight();
}
static Dimension getPreferredSize(final Component c) {
  return c == null ? null : swing(new F0<Dimension>() { Dimension get() { try {  return c.getPreferredSize();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret c.getPreferredSize();"; }});
}
static Container getParent(final Component c) {
  return c == null ? null : swing(new F0<Container>() { Container get() { try {  return c.getParent();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret c.getParent();"; }});
}
static JScrollPane enclosingScrollPane(Component c) {
  while (c.getParent() != null && !(c.getParent() instanceof JViewport) && c.getParent().getComponentCount() == 1) c = c.getParent(); // for jscroll_center
  if (!(c.getParent() instanceof JViewport)) return null;
  c = c.getParent().getParent();
  return c instanceof JScrollPane ? (JScrollPane) c : null;
}
// independent timer
static void awtLater(int delay, final Object r) {
  swingLater(delay, r);
}

static void awtLater(Object r) {
  swingLater(r);
}

// dependent timer (runs only when component is visible)
static void awtLater(JComponent component, int delay, Object r) {
  installTimer(component, r, delay, delay, false);
}

static void awtLater(JFrame frame, int delay, Object r) {
  awtLater(frame.getRootPane(), delay, r);
}
static void showFullScreenImageSurface(BufferedImage img) {
  showFullScreen(jscroll_centered(disposeFrameOnClick(new ImageSurface(img))));
}
static <A> List<A> synchroLinkedList() {
  return Collections.synchronizedList(new LinkedList<A>());
}

static Class _run(String progID, String... args) {
  Class main = hotwire(progID);
  callMain(main, args);
  return main;
}
static <A> A syncPopFirst(List<A> l) {
  if (empty(l)) return null;
  synchronized(l) {
    A a = first(l);
    l.remove(0);
    return a;
  }
}


static Flag dm_initErrorHandling_flag = new Flag();

static void dm_initErrorHandling() {
  raiseFlagAndDo(dm_initErrorHandling_flag, new Runnable() {  public void run() { try { 
    _handleException_addHandler("dm_initErrorHandling_handler");
    
    assertNull(_onRegisterThread);
    _onRegisterThread = new VF1<Thread>() { public void get(Thread t) { try { 
      DynModule m = dm_currentModule();
      if (m == null) printStackTrace("New thread made outside of a module");
      else m.ownTimer(t);
     } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "DynModule m = dm_currentModule();\r\n      if (m == null) printStackTrace(\"New ..."; }};
    _threadInfo_makers.add(new VF1<Map>() { public void get(Map map) { try {  mapPut(map, "dm_currentModule_value", dm_currentModule()) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "mapPut(map, 'dm_currentModule_value, dm_currentModule())"; }});
    _threadInheritInfo_retrievers.add(new VF1<Map>() { public void get(Map map) { try { 
      Object mod = map.get("dm_currentModule_value");
      if (mod instanceof DynModule) dm_currentModule_value.set(new WeakReference((DynModule) mod));
     } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "O mod = map.get('dm_currentModule_value);\r\n      if (mod instanceof DynModule..."; }});
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "_handleException_addHandler(f dm_initErrorHandling_handler);\r\n    \r\n    asser..."; }});
}

static void dm_initErrorHandling_handler(Throwable e) {
  DynModule m = dm_currentModule();
  if (m == null)
    print("Weird: Error outside of module");
  else
    m.setField("_error" , persistableThrowable(e));
}



static void setMainDesktopPane(JDesktopPane desktop) {
  mainDesktopPane_value = desktop;
}
static <A> A getCreatorOpt(String field) {
  return (A) getOpt(creator(), field);
}
static <A extends Component> A possiblyInternalFrameTitle(A c, String title) {
  JInternalFrame f = getInternalFrame(c);
  if (f != null) internalFrameTitle(f, title);
  else frameTitle(getFrame(c), title);
  return c;
}


static void ownResource(AutoCloseable c) {
  _registerAutoCloseable(c);
}
static <A, B> Map<A, B> getAndClearMap(Map<A, B> map) {
  if (map == null) return emptyMap();
  synchronized(collectionMutex(map)) {
    Map<A, B> out = cloneMap(map);
    map.clear();
    return out;
  }
}
static Object pcallFInRealOrMyMC(final Object realm, final Object f, final Object... args) {
  try { return callFInRealOrMyMC(realm, f, args); } catch (Throwable __e) { _handleException(__e); }
  return null;
}


static <A> A pcallFInRealOrMyMC(Object realm, F0<A> f) { try {
  return f == null ? null : f.get();
} catch (Throwable __e) { return null; } }



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

static AutoCloseable combineAutoCloseables(final AutoCloseable a, final AutoCloseable b) {
  return a == null ? b : b == null ? a : new AutoCloseable() { public String toString() { return "a.close(); b.close();"; } public void close() throws Exception {  a.close(); b.close(); }};
}

static AutoCloseable combineAutoCloseables(Iterable<AutoCloseable> l) {
  return foldl(new F2<AutoCloseable, AutoCloseable, AutoCloseable>() { AutoCloseable get(AutoCloseable a, AutoCloseable b) { try {  return combineAutoCloseables(a,b);  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "combineAutoCloseables(a,b)"; }}, null, l);
}
// f can return false to suppress regular printing
// call print_raw within f to actually print something
static AutoCloseable tempInterceptPrint(F1<String, Boolean> f) {
  return tempSetThreadLocal(print_byThread(), f);
}
static ThreadLocal realMC_tl_tl = new ThreadLocal();

static ThreadLocal realMC_tl() {
  return realMC_tl_tl;
}
static AutoCloseable tempLock(final Lock lock) {
  if (lock == null) return null;
  lock(lock);
  return new AutoCloseable() { public String toString() { return "unlock(lock);"; } public void close() throws Exception {  unlock(lock); }};
}
static <A> boolean addIfNotThere(Collection<A> c, A a) {
  return setAdd(c, a);
}
static void zeroAllFieldsOfTypeExcept(Object o, Class type, String... exceptions) {
  zeroAllFieldsOfTypeExcept(o, type, asSet(exceptions));
}

static void zeroAllFieldsOfTypeExcept(Object o, Class type, Collection<String> exceptions) {
  Set<String> set = asSet(exceptions);
  for (String field : allFields(o))
    if (!set.contains(field) && instanceOf(getOpt(o, field), type))
      set(o, field, null);
}
static void internalFramePopupMenuFromActions_threaded(Container f, List<AbstractAction> actions) {
  if (!(f instanceof JInternalFrame)) return;
  for (final AbstractAction a : unnull(actions))
    if (a != null)
      internalFramePopupMenuItem(((JInternalFrame) f), str(a.getValue(Action.NAME)), runnableThread(new Runnable() {  public void run() { try {  callAction(a) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "callAction(a)"; }}));
}
static ReliableSingleThread dm_rst(DynModule mod, Runnable r) {
  return dm_rst(mod, new ReliableSingleThread(r));
}

static ReliableSingleThread dm_rst(DynModule mod, ReliableSingleThread rst) {
  rst.enter = dm_rEnter(mod);
  return rst;
}
static Q dm_startQ() {
  Q q = startQ();
  q.rst.enter = dm_rEnter(dm_current_mandatory()); 
  dm_ownResource(q);
  return q;
}
static Set<java.util.Timer> _registerTimer_list = newWeakHashSet();

static void _registerTimer_original(java.util.Timer timer) {
  _registerTimer_list.add(timer);
}

static void cleanMeUp__registerTimer() {
  cancelTimers(getAndClearList(_registerTimer_list));
}
static String defaultTimerName_name;

static String defaultTimerName() {
  if (defaultTimerName_name == null)
    defaultTimerName_name = "A timer by " + programID();
  return defaultTimerName_name;
}


static boolean getServerTranspiled2_allowLocalFallback = true, getServerTranspiled2_localFallbackVerbose = true;

static String getServerTranspiled2(String id) {
  String transpiled = loadCachedTranspilation(id);
  String md5 = null;
  if (machineIsOffline() || isOfflineMode() || isLocalSnippet(id)) return transpiled;
  if (transpiled != null)
    md5 = md5(transpiled);
  String transpiledSrc;
  try {
    transpiledSrc = getServerTranspiled(formatSnippetID(id), md5);
  } catch (Throwable e) {
    if (!getServerTranspiled2_allowLocalFallback) rethrow(e);
    printExceptionShort(e);
    if (getServerTranspiled2_localFallbackVerbose) print("Fallback to local code");
    return transpiled;
  }
  if (eq(transpiledSrc, "SAME")) {
    if (!isTrue(loadPage_silent.get())) print("SAME");
    return transpiled;
  }
  return transpiledSrc;
}


// returns actual CNC
static List<String> findMainClass(List<String> tok) {
  for (List<String> c : reversedList(allClasses(tok))) {
    String name = getClassDeclarationName(c);
    if (eq(name, "main") || name.startsWith("x"))
      return c;
  }
  return findBlock("m {", tok);
}
static boolean useDummyMainClasses() {
  return true;
  //ret eq("1", trim(loadTextFile(getProgramFile(#1008755, "use-dummy-main-classes"))));
}
static boolean tok_classHasModifier(List<String> classDecl, String modifier) {
  if (classDecl == null) return false;
  int i = classDecl.indexOf("class");
  return subList(classDecl, 0, i).contains(modifier);
}
// before you use this, add a RAM disk cleaner
static boolean javaCompileToJar_useRAMDisk;

static File javaCompileToJar_optionalRename(String src, File destJar, String progIDForRename) {
  return javaCompileToJar_optionalRename(src, "", destJar, progIDForRename);
}

static synchronized File javaCompileToJar_optionalRename(String src, String dehlibs, File destJar, String progIDForRename) {
  return javaCompileToJar_optionalRename(src, dehlibs, destJar, progIDForRename, null);
}

// returns path to jar
static synchronized File javaCompileToJar_optionalRename(String src, String dehlibs, File destJar, String progIDForRename, String progID) {
  String javaTarget = null; // use default target
  
  //print("Compiling " + l(src) + " chars");
  String dummyClass = "main";
  if (progIDForRename != null) {
    dummyClass = dummyMainClassName(progIDForRename);
    src += "\nclass " + dummyClass + "{}";
  }
  String md5 = md5(src);
  File jar = destJar;

  Class j = getJavaX();
  if (javaTarget != null)
    setOpt(j, "javaTarget", javaTarget);
  //setOpt(j, "verbose", true);
  File srcDir = tempDir();
  String className = "main";
  String fileName = dummyClass + ".java";
  List<String> tok = javaTok(src);
  String packageName = tok_packageName(tok);
  if (packageName != null)
    fileName = packageName.replace(".", "/") + "/" + tok_firstClassName(tok) + ".java";
  File mainJava = new File(srcDir, fileName);
  //print("main java: " + mainJava.getAbsolutePath());
  saveTextFile(mainJava, src);
  File classesDir = javaCompileToJar_useRAMDisk ? tempDirPossiblyInRAMDisk() : tempDir();
  //print("Compiling to " + f2s(classesDir));
  try {
    List<File> libraries = new ArrayList();
    
    Matcher m = Pattern.compile("\\d+").matcher(dehlibs);
    while (m.find()) {
      String libID = m.group();
      //print("libID=" + quote(libID));
      assertTrue(isSnippetID(libID));
      libraries.add(loadLibraryOrSrcLib(libID));
    }
    
    libraries.add(pathToJavaxJar());
      
    String compilerOutput;
    try {
      compilerOutput = (String) call(j, "compileJava", srcDir, libraries, classesDir);
    } catch (Throwable e) {
      compilerOutput = (String) get(getJavaX(), "javaCompilerOutput");
      throw fail("Compile Error. " + compilerOutput + " " + e);
    }
    
    if (eq(trim(compilerOutput), "Annotation processing got disabled, since it requires a 1.6 compliant JVM")) {
      print(compilerOutput);
      compilerOutput = "";
    }
    
    if (nempty(compilerOutput)) {
      print("Compiler said: " + compilerOutput);
      //fail("Compile Error. " + compilerOutput);
    }
  
    // sanity test
    if (!anyFileWithExtensionInDir(classesDir, ".class"))
      throw fail("No classes generated");
        
    // add sources to .jar
    saveTextFile(new File(classesDir, "main.java"), src);
    
    // add information about libraries to jar
    if (nempty(dehlibs))
      saveTextFile(new File(classesDir, "libraries"), dehlibs);
      
    // add prog id to jar
    saveTextFile(new File(classesDir, "progID"), progID);
  
    //print("Zipping: " + classesDir.getAbsolutePath() + " to " + jar.getAbsolutePath());
    dir2zip_recurse_verbose = false;
    int n = dir2zip_recurse(classesDir, jar); // cache on success only
    //print("Files zipped: " + n);
  
    return jar;
  } finally {
    if (isInRAMDisk(classesDir)) deleteDirectory(classesDir);
  }
}

// will create the file or update its last modified timestamp
static void touchFile(File file) { try {
  closeRandomAccessFile(newRandomAccessFile(mkdirsForFile(file), "rw"));
} catch (Exception __e) { throw rethrow(__e); } }
static File getCacheProgramDir() {
  return getCacheProgramDir(getProgramID());
}

static File getCacheProgramDir(String snippetID) {
  return new File(userHome(), "JavaX-Caches/" + formatSnippetIDOpt(snippetID));
}
static int hashCodeFor(Object a) {
  return a == null ? 0 : a.hashCode();
}
static <A extends JComponent> A awtEvery(A component, long delay, Object r) {
  swingEvery(component, delay, r);
  return component;
}

static <A extends JComponent> A awtEvery(A component, long delay, long firstDelay, Object r) {
  swingEvery(component, delay, firstDelay, r);
  return component;
}

static void awtEvery(RootPaneContainer frame, long delay, Object r) {
  swingEvery(frame, delay, r);
}

static <A extends JComponent> A awtEvery(A component, double delaySeconds, Object r) {
  return awtEvery(component, toMS(delaySeconds), r);
}


static JPanel jSection(Component c) {
  return jSection("", c);
}

static JPanel jSection(final String title, final Component c) {
  return swing(new F0<JPanel>() { JPanel get() { try { 
    Border border = BorderFactory.createBevelBorder(BevelBorder.LOWERED);
    border = BorderFactory.createTitledBorder(border, title);
    JSection panel = new JSection(c);
    panel.setBorder(border);
    return panel;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "Border border = BorderFactory.createBevelBorder(BevelBorder.LOWERED);\r\n    bo..."; }});
}

static JPanel jSection(String title) {
  return jSection(title, jpanel());
}

static <A extends JTextComponent> A moveCaretToEnd(A ta) {
  setCaretPosition(ta, textAreaTextLength(ta));
  return ta;
}
static String getPrintLog() {
  return str(print_log);
}
static boolean setText_opt = true; // optimize by calling getText first

static <A extends JTextComponent> A setText(A c, Object text) {
  setText((Object) c, text);
  return c;
}

static <A extends JComboBox> A setText(final A c, Object text) {
  // only for editable combo boxes at this point
  final String s = strUnnull(text);
  { swing(new Runnable() {  public void run() { try { 
    c.getEditor().setItem(s);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.getEditor().setItem(s);"; }}); }
  return c;
}

static void setText(JLabel c, Object text) {
  setText((Object) c, text);
}

static JButton setText(JButton c, Object text) {
  setText((Object) c, jlabel_textAsHTML_center_ifNeeded(strUnnull(text)));
  return c;
}

static <A> A setText(final A c, Object text) {
  if (c == null) return null;
  final String s = strUnnull(text);
  { swing(new Runnable() {  public void run() { try { 
    if (!setText_opt || neq(callOpt(c, "getText"), s))
      call(c, "setText", s);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (!setText_opt || neq(callOpt(c, \"getText\"), s))\r\n      call(c, \"setText\", s);"; }}); }
  return c;
}
static void enableWordWrapForTextArea(final JTextArea ta) {
  if (ta != null) { swing(new Runnable() {  public void run() { try { 
    ta.setLineWrap(true);
    ta.setWrapStyleWord(true);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "ta.setLineWrap(true);\r\n    ta.setWrapStyleWord(true);"; }}); }
}
static StringBuffer liveLocalPrintLog_realMC(Object o) {
  Object realMC = getMainClass(o);
  if (realMC != mc())
    return (StringBuffer) getOpt(realMC, "local_log");
  return liveLocalPrintLog();
}
static <A> Set<A> synchroSet() {
  return synchroHashSet();
}

static <A> Set<A> synchroSet(Set<A> set) {
  return Collections.synchronizedSet(set);
}
static void fixACCInClassLoader(Object o) {
  try {
    AccessControlContext acc = vm_globalACC();
    if (acc != null)
      replaceACCInClassLoader(o, acc);
  } catch (Throwable __e) { _handleException(__e); }
}
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 String systemHashCodeHex(Object o) {
  return intToHex(identityHashCode(o));
}
static <A> Iterator<A> iterator(Iterable<A> c) {
  return c == null ? emptyIterator() : c.iterator();
}
static UnsupportedOperationException unsupportedOperation() {
  throw new UnsupportedOperationException();
}
static boolean stdEq2(Object a, Object b) {
  if (a == null) return b == null;
  if (b == null) return false;
  if (a.getClass() != b.getClass()) return false;
  for (String field : allFields(a))
    if (neq(getOpt(a, field), getOpt(b, field)))
      return false;
  return true;
}
static int stdHash2(Object a) {
  if (a == null) return 0;
  return stdHash(a, toStringArray(allFields(a)));
}


static String copyTextToClipboard(String text) {
  StringSelection selection = new StringSelection(text);
  Toolkit.getDefaultToolkit().getSystemClipboard().setContents(selection, selection);
  vmBus_send("newClipboardContents", text);
  return text;
}
static long sysTime() {
  return sysNow();
}
static void change() {
  //mainConcepts.allChanged();
  // safe version for now cause function is sometimes included unnecessarily (e.g. by EGDiff)
  callOpt(getOptMC("mainConcepts"), "allChanged");
}
static Map mapValues(Object func, Map map) {
  Map m = similarEmptyMap(map);
  for (Object key : keys(map))
    m.put(key, callF(func, map.get(key)));
  return m;
}

static Map mapValues(Map map, Object func) {
  return mapValues(func, map);
}
static <A, B> Set<A> keySet(Map<A, B> map) {
  return map == null ? new HashSet() : map.keySet();
}

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






static boolean inRange(int x, int n) {
  return x >= 0 && x < n;
}
static int limitToUByte(int i) {
  return max(0, min(255, i));
}
static int _hashCode(Object a) {
  return a == null ? 0 : a.hashCode();
}
static boolean hasLock(Lock lock) {
  return ((ReentrantLock) lock).isHeldByCurrentThread();
}
static void cancelAndInterruptThread(Thread t) {
  if (t == null) return;
  cancelThread(t);
  t.interrupt();
}
static boolean containsInstance(Iterable i, Class c) {
  if (i != null) for (Object o : i)
    if (isInstanceX(c, o))
      return true;
  return false;
}
static int asInt(Object o) {
  return toInt(o);
}
static Color getBackground(final Component c) {
  return c == null ? null : swing(new F0<Color>() { Color get() { try {  return c.getBackground();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret c.getBackground();"; }});
}


static Object _onAWTEnter_f;

static AutoCloseable _onAWTEnter() {
  return (AutoCloseable) callF(_onAWTEnter_f);
}
static JDesktopPane mainDesktopPane_value;

static JDesktopPane mainDesktopPane() {
  return mainDesktopPane_value;
}
static void interruptThread(Thread t) {
  if (t == null) return;
  t.interrupt();
  URLConnection c = (URLConnection) ( vm_generalSubMap("URLConnection per thread").get(t));
  if (c != null) { try {
    print("Closing URLConnection of interrupted thread.");
    call(c, "disconnect");
  } catch (Throwable __e) { _handleException(__e); }}
}
static void cancelTimer(javax.swing.Timer timer) {
  if (timer != null) timer.stop();
}

static void cancelTimer(java.util.Timer timer) {
  if (timer != null) timer.cancel();
}

static void cancelTimer(Object o) {
  if (o instanceof java.util.Timer) cancelTimer((java.util.Timer) o);
  else if (o instanceof javax.swing.Timer) cancelTimer((javax.swing.Timer) o);
  else if (o instanceof AutoCloseable) { try { ((AutoCloseable) o).close(); } catch (Throwable __e) { _handleException(__e); }}
}
static MenuItem menuItem(String text, final Object r) {
  MenuItem mi = new MenuItem(text);
  mi.addActionListener(actionListener(r));
  return mi;
}
static String defaultFrameTitle() {
  return autoFrameTitle();
}

static void defaultFrameTitle(String title) {
  autoFrameTitle_value = title;
}
static void registerEscape(JFrame frame, final Runnable r) {
  registerEscape_rootPane(frame.getRootPane(), r);
}
static void disposeWindow(final Window window) {
  if (window != null) { swing(new Runnable() {  public void run() { try { 
    window.dispatchEvent(new WindowEvent(window, WindowEvent.WINDOW_CLOSING)); // call listeners
    myFrames_list.remove(window);
    window.dispose();
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "window.dispatchEvent(new WindowEvent(window, WindowEvent.WINDOW_CLOSING)); //..."; }}); }
}

static void disposeWindow(final Component c) {
  disposeWindow(getWindow(c));
}

static void disposeWindow(Object o) {
  if (o != null) disposeWindow(((Component) o));
}

static void disposeWindow() {
  disposeWindow(heldInstance(Component.class));
}
static JComponent selectSnippetID_v1(final VF1<String> onSelect) {
  return selectSnippetID_v1("#", onSelect);
}

static JComponent selectSnippetID_v1(String defaultID, final VF1<String> onSelect) {
  final JTextField tfSnippetID = jtextfield(defaultID);
  if (eq(defaultID, "#")) moveCaretToEnd(tfSnippetID);
  
  JComponent panel;
  renameSubmitButton(panel = showTitledForm("Select Snippet",
    "Snippet ID:", tfSnippetID, runnableThread(new Runnable() {  public void run() { try { 
      callF(onSelect, fsI(getTextTrim(tfSnippetID)));
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "callF(onSelect, fsI(getTextTrim(tfSnippetID)));"; }})), "Select snippet");
  return panel;
}
static BufferedImage cloneBufferedImage(BufferedImage image) {
  return copyImage(image);
}
static BufferedImage clipBufferedImage(BufferedImage src, Rectangle clip) {
  return clipBufferedImage(src, new Rect(clip));
}

static BufferedImage clipBufferedImage(BufferedImage src, Rect r) {
  if (src == null) return null;
  // fixClipRect
  r = intersectRects(r, new Rect(0, 0, src.getWidth(), src.getHeight()));
  if (rectEmpty(r)) return null; // can't make zero-sized BufferedImage
    
  return src.getSubimage(r.x, r.y, r.w, r.h);
}

static BufferedImage clipBufferedImage(BufferedImage src, int x, int y, int w, int h) {
  return clipBufferedImage(src, new Rect(x, y, w, h));
}

static Object getTransferData(Transferable t, DataFlavor flavor) { try {
  return t != null && t.isDataFlavorSupported(flavor) ? t.getTransferData(flavor) : null;
} catch (Exception __e) { throw rethrow(__e); } }
static BufferedImage imageFromDataURL(String url) {
  String pref = "base64,";
  int i = indexOf(url, pref);
  if (i < 0) return null;
  return decodeImage(base64decode(substring(url, i+l(pref))));
}



static String getTextFromClipboard() { try {
  Transferable transferable = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null);
  if (transferable != null && transferable.isDataFlavorSupported(DataFlavor.stringFlavor))
    return (String) transferable.getTransferData(DataFlavor.stringFlavor);
  return null;
} catch (Exception __e) { throw rethrow(__e); } }
  static void popupError(final Throwable throwable) {
    throwable.printStackTrace(); // print stack trace to console for the experts
    SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        String text = throwable.toString();
        //text = cutPrefix(text, "java.lang.RuntimeException: ");
        JOptionPane.showMessageDialog(null, text);
      }
    });
  }




// 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) {
  if (component == null) return null;
  return (Timer) swingAndWait(new F0<Object>() { Object get() { try { 
    final Var<Timer> timer = new Var();
    timer.set(new Timer(toInt(delay), new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { try {
       AutoCloseable __580 = tempActivity(r); try {
      try {
        if (!allPaused())
          if (isFalse(callF(r)))
            cancelTimer(timer.get());
      } catch (Throwable __e) { _handleException(__e); }
    } finally { _close(__580); }} catch (Throwable __e) { messageBox(__e); }}}));
    timer.get().setInitialDelay(toInt(firstDelay));
    timer.get().setRepeats(repeats);
    bindTimerToComponent(timer.get(), component);
    return timer.get();
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "final new Var<Timer> timer;\r\n    timer.set(new Timer(toInt(delay), actionList..."; }});
}

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

static JScrollPane jscroll_centered(Component c) {
  return jscroll(jFullCenter(c));
}
static <A extends JComponent> A disposeFrameOnClick(final A c) {
  onClick(c, new Runnable() {  public void run() { try {  disposeFrame(c) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "disposeFrame(c)"; }});
  return c;
}
static void raiseFlagAndDo(Flag flag, Runnable r) {
  if (flag.raise()) callF(r);
}
static void _handleException_addHandler(Object handler) {
  addIfNotThere(_handleException_onException, handler);
}
static <A> A assertNull(A a) {
  assertTrue(a == null);
  return a;
}

static <A> A assertNull(String msg, A a) {
  assertTrue(msg, a == null);
  return a;
}
static <A, B> void mapPut(Map<A, B> map, A key, B value) {
  if (map != null && key != null && value != null) map.put(key, value);
}
static <A extends Component> A internalFrameTitle(A c, final String title) {
  final JInternalFrame f = getInternalFrame(c);
  if (f != null) { swing(new Runnable() {  public void run() { try { 
    f.setTitle(unnull(title));
    toolTip(getInternalFrameTitlePaneComponent(f), title);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "f.setTitle(unnull(title));\r\n    toolTip(getInternalFrameTitlePaneComponent(f)..."; }}); }
  return c;
}

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

static String internalFrameTitle(Component c) {
  final JInternalFrame f = getInternalFrame(c);
  return f == null ? null : swing(new F0<String>() { String get() { try {  return f.getTitle();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret f.getTitle();"; }});
}

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

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

static String frameTitle(Component c) {
  return getFrameTitle(c);
}

static <A, B> Map<A, B> cloneMap(Map<A, B> map) {
  if (map == null) return new HashMap();
  // assume mutex is equal to collection
  synchronized(map) {
    return map instanceof TreeMap ? new TreeMap((TreeMap) map) // copies comparator
      : map instanceof LinkedHashMap ? new LinkedHashMap(map)
      : new HashMap(map);
  }
}

  static <A> A callFInRealOrMyMC(Object realm, F0<A> f) {
    return f == null ? null : f.get();
  }



  static <A, B> B callFInRealOrMyMC(Object realm, F1<A, B> f, A a) {
    return f == null ? null : f.get(a);
  }



  static <A, B, C> C callFInRealOrMyMC(Object realm, F2<A, B, C> f, A a, B b) {
    return f == null ? null : f.get(a, b);
  }



  static <A> void callFInRealOrMyMC(Object realm, VF1<A> f, A a) {
    if (f != null) f.get(a);
  }


static Object callFInRealOrMyMC(Object realm, Object f, Object... args) {
  if (f instanceof String) {
    Class mc = getMainClass(realm);
    if (hasMethod(mc, ((String) f), args))
      return call(mc, ((String) f), args);
  }
  return callF(f, args);
}
static <A, B> A foldl(F2<A, B, A> f, A seed, Iterable<B> l) {
  A a = seed;
  if (l != null) for(B b : l)
    a = callF(f, a, b);
  return a;
}
static ThreadLocal<Object> print_byThread() {
  synchronized(print_byThread_lock) {
    if (print_byThread == null)
      print_byThread = new ThreadLocal();
  }
  return print_byThread;
}
static Set asSet(Object[] array) {
  HashSet set = new HashSet();
  for (Object o : array)
    if (o != null)
      set.add(o);
  return set;
}

static Set<String> asSet(String[] array) {
  TreeSet<String> set = new TreeSet();
  for (String o : array)
    if (o != null)
      set.add(o);
  return set;
}

static <A> Set<A> asSet(Iterable<A> l) {
  if (l instanceof Set) return (Set) l;
  HashSet<A> set = new HashSet();
  for (A o : unnull(l))
    if (o != null)
      set.add(o);
  return set;
}
static Set<String> allFields(Object o) {
  TreeSet<String> fields = new TreeSet();
  Class _c = _getClass(o);
  do {
    for (Field f : _c.getDeclaredFields())
      fields.add(f.getName());
    _c = _c.getSuperclass();
  } while (_c != null);
  return fields;
}
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 void internalFramePopupMenuItem(Container f, final String name, final Object action) {
  internalFrameTitlePopupMenuItem(((JInternalFrame) f), name, action);
}
static void callAction(Action a) {
  if (a != null) a.actionPerformed(null);
}
static F0<AutoCloseable> dm_rEnter(final DynModule mod) {
  return mod == null ? null : new F0<AutoCloseable>() { AutoCloseable get() { try {  return mod.enter();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret mod.enter();"; }};
}
static Q startQ() {
  return new Q();
}

static Q startQ(String name) {
  return new Q(name);
}
static void cancelTimers(Collection timers) {
  for (Object timer : timers) cancelTimer(timer);
}
static String loadCachedTranspilation(String id) { try {
  return loadTextFilePossiblyGZipped(getCachedTranspilationFile(id));
} catch (Throwable __e) { return null; } }

static boolean machineIsOffline() {
  return isFalse(callF(vmGeneralMap_get("areWeOnline")));
}
static boolean isOfflineMode() {
  return eq("1", trim(loadProgramTextFile("#1005806", "offline-mode")));
}
static boolean isLocalSnippet(String snippetID) {
  return isLocalSnippetID(snippetID);
}



static boolean isLocalSnippet(long snippetID) {
  return isLocalSnippetID(snippetID);
}
static String getServerTranspiled(String snippetID) {
  return getServerTranspiled(snippetID, null);
}

// returns "SAME" if md5 matches
static String getServerTranspiled(String snippetID, String expectedMD5) { try {
  long id = parseSnippetID(snippetID);
  /*S t = getTranspilationFromBossBot(id);
  if (t != null) return t;*/
  
  String text = loadPage_utf8(tb_mainServer() + "/tb-int/get-transpiled.php?raw=1&withlibs=1&id=" + id + "&utf8=1"
    + (l(expectedMD5) > 1 ? "&md5=" + urlencode(expectedMD5) : "")
    + standardCredentials());
  if (nempty(text) && neq(text, "SAME"))
    saveTranspiledCode(snippetID, text);
  return text;
} catch (Exception __e) { throw rethrow(__e); } }
static void printExceptionShort(Throwable e) {
  print(exceptionToStringShort(e));
}
static HashSet<String> allClasses_keywords = lithashset("class", "interface", "enum", "sclass", "sinterface", "record", "srecord");

// lists returned are actual CNC (N/C/N/.../C/N) - and connected to
// original list
// only returns the top level classes
static List<List<String>> allClasses(List<String> tok) {
  List<List<String>> l = new ArrayList();
  for (int i = 1; i < tok.size(); i += 2) {
    if (eq(tok.get(i), "{")) // skip functions
      i = findEndOfBlock(tok, i)-1;
    else if (allClasses_keywords.contains(tok.get(i)) && (i == 1 || !tok.get(i-2).equals("."))) {
      int j = i;
      while (j < tok.size() && !tok.get(j).equals("{"))
        j += 2;
      j = findEndOfBlock(tok, j)+1;
      i = leftScanModifiers(tok, i);
      l.add(tok.subList(i-1, Math.min(tok.size(), j)));
      i = j-2;
    }
  }
  return l;
}

static List<List<String>> allClasses(String text) {
  return allClasses(javaTok(text));
}
static String getClassDeclarationName(List<String> tok) {
  if (tok != null)
    for (int i = 1; i+2 < tok.size(); i += 2)
      if (allClasses_keywords.contains(tok.get(i)) && isIdentifier(tok.get(i+2)))
        return tok.get(i+2);
  return null;
}

static List<String> findBlock(String pat, List<String> tok) {
  List<String> tokpat = javaTok(pat);
  int i = findCodeTokens(tok, toStringArray(codeTokensOnly(tokpat)));
  //print("index of block " + quote(pat) + ": " + i);
  if (i < 0) return null;
  int bracketIdx = i+tokpat.size()-3;
  assertEquals("{", tok.get(bracketIdx));
  int endIdx = findEndOfBlock(tok, bracketIdx);
  return subList(tok, i-1, endIdx+1); // make it actual CNC
}
static String dummyMainClassName(String progID) {
  return "m" + psI(progID);
}
  static File tempDir() {
    return makeTempDir();
  }
static String tok_packageName(List<String> tok) {
  int i = jfind(tok, "package");
  if (i < 0) return "";
  i += 2;
  int j = jfind(tok, i, ";");
  if (j < 0) return "";
  return join(codeTokensOnly(subList(tok, i-1, j)));
}
static String tok_firstClassName(List<String> tok) {
  int i = jfind(tok, "class <id>");
  return i < 0 ? null : tok.get(i+2);
}
static File tempDirPossiblyInRAMDisk() {
  File f = linux_fileInRamDisk(aGlobalID());
  if (f != null) { f.mkdirs(); return f; }
  return makeTempDir();
}
static boolean loadLibraryOrSrcLib_srcLibsEnabled = true;

static File loadLibraryOrSrcLib(String snippetID) { try {
  long id = parseSnippetID(snippetID);
  
  boolean srcLib = loadLibraryOrSrcLib_srcLibsEnabled && isMarkedAsSrcLib(snippetID);
  if (srcLib)
    return pairA(hotwire_compile(snippetID));
    
  File f = DiskSnippetCache_getLibrary(id);
  if (fileSize(f) != 0) return f;
  try {
    return loadDataSnippetToFile(snippetID);
  } catch (Throwable e) {
    if (loadLibraryOrSrcLib_srcLibsEnabled && nempty(loadSnippet(snippetID))) {
      markAsSrcLib(snippetID);
      return pairA(hotwire_compile(snippetID));
    }
    throw rethrow(e);
  }
} catch (Exception __e) { throw rethrow(__e); } }
static File pathToJavaxJar() { try {
  int x = latestInstalledJavaX();
  File xfile = new File(userHome(), ".javax/x" + Math.max(x, 30) + ".jar");
  if (!xfile.isFile()) {
    print("Saving " + f2s(xfile));
    String url = "http://tinybrain.de/x30.jar";
    byte[] data = loadBinaryPage(url);
    if (data.length < 1000000)
      throw fail("Could not load " + url);
    saveBinaryFile(xfile.getPath(), data);
  }
  return xfile;
} catch (Exception __e) { throw rethrow(__e); } }
static boolean anyFileWithExtensionInDir(File dir, String ext) {
  return nempty(filesWithExtension(ext, findAllFiles_noDirs(dir)));
}
static boolean dir2zip_recurse_verbose;

static int dir2zip_recurse(File inDir, File zip) {
  return dir2zip_recurse(inDir, zip, "");
}

// TODO: the zero files case?
static int dir2zip_recurse(File inDir, File zip, String outPrefix) { try {
  mkdirsForFile(zip);
  FileOutputStream fout = newFileOutputStream(zip);
  ZipOutputStream outZip = new ZipOutputStream(fout);
  try {
    return dir2zip_recurse(inDir, outZip, outPrefix, 0);
  } finally {
    outZip.close();
  }
} catch (Exception __e) { throw rethrow(__e); } }

static int dir2zip_recurse(File inDir, ZipOutputStream outZip) {
  return dir2zip_recurse(inDir, outZip, "", 0);
}

static int dir2zip_recurse(File inDir, ZipOutputStream outZip, String outPrefix, int level) { try {
  if (++level >= 20) throw fail("woot? 20 levels in zip?");
  
  List<File> files = new ArrayList();
  for (File f : listFiles(inDir))
    files.add(f);

  int n = 0;
  sortFilesByName(files);
  for (File f : files) {
    if (f.isDirectory()) {
      print("dir2zip_recurse: Scanning " + f.getAbsolutePath());
      n += dir2zip_recurse(f, outZip, outPrefix + f.getName() + "/", level);
    } else {
      if (dir2zip_recurse_verbose) print("Copying " + f.getName());
      outZip.putNextEntry(new ZipEntry(outPrefix + f.getName()));
      InputStream fin = new FileInputStream(f);
      copyStream(fin, outZip);
      fin.close();
      ++n;
    }
  }
  return n;
} catch (Exception __e) { throw rethrow(__e); } }

static boolean isInRAMDisk(File f) {
  return startsWith(f2s(f), "/dev/shm");
}
static void deleteDirectory(File dir) {
  deleteDirectory(dir, false, false);
}

static void deleteDirectory(File dir, boolean verbose, boolean testRun) {
  deleteAllFilesInDirectory(dir, verbose, testRun);
  if (verbose) print((testRun ? "Would delete " : "Deleting ") + dir.getAbsolutePath());
  if (!testRun)
    dir.delete();
}

static void closeRandomAccessFile(RandomAccessFile f) {
  if (f != null) try {
    f.close();
    callJavaX("dropIO", f);
  } catch (Throwable e) {
    printStackTrace(e);
  }
}
static RandomAccessFile newRandomAccessFile(File path, String mode) throws IOException {
  boolean forWrite = mode.indexOf('w') >= 0;
  if (forWrite) mkdirsForFile(path);
  RandomAccessFile f = new RandomAccessFile(path, mode);
  callJavaX("registerIO", f, path, forWrite);
  return f;
}
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 void swingEvery(RootPaneContainer frame, long delay, long firstDelay, Object r) {
  installTimer(frame, delay, firstDelay, r);
}
static void setCaretPosition(final JTextComponent c, final int pos) {
  if (c != null) { swing(new Runnable() {  public void run() { try { 
    try {
      int _pos = max(0, min(l(c.getText()), pos));
      c.setCaretPosition(_pos);
    } catch (Throwable __e) { _handleException(__e); }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "pcall {\r\n      int _pos = max(0, min(l(c.getText()), pos));\r\n      c.setCaret..."; }}); }
}
static int textAreaTextLength(JTextComponent ta) {
  return l(getText(ta));
}
static String strUnnull(Object o) {
  return o == null ? "" : str(o);
}
static String jlabel_textAsHTML_center_ifNeeded(String text) {
  if (swic(text, "<html>") && ewic(text, "</html>")) return text;
  if (!containsNewLines(text)) return text;
  return jlabel_textAsHTML_center(text);
}
static StringBuffer liveLocalPrintLog() {
  return local_log;
}
static AccessControlContext vm_globalACC() {
  return vm_generalMap_get("Global ACC");
}
static void replaceACCInClassLoader(Object o, AccessControlContext newACC) {
  ClassLoader cl = getClassLoaderOrSame(o);
  if (cl instanceof URLClassLoader) { try {
    setOpt(cl, "acc" , newACC);
    try {
      setOpt(getOpt(cl, "ucp"), "acc" , newACC);
    } catch (Throwable e) {
      printShortException(e);
      if (java10OrHigher())
        if (addDefaultVMOption("--add-opens java.base/jdk.internal.loader=ALL-UNNAMED"))
          print("Please restart the OS");
    }
  } catch (Throwable __e) { _handleException(__e); }}
}
static String intToHex(int i) {
  return bytesToHex(intToBytes(i));
}
static int identityHashCode(Object o) {
  return System.identityHashCode(o);
}
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 void cancelThread(Thread t) {
  if (t == null) return;
  ping();
  /*O mc = getWeakRef((WeakReference) vm_generalWeakSubMap("thread2mc").get(t));
  ifdef cancelThread_verbose
  print("cancelThread: mc=" + mc);
  endifdef
  if (mc != null) {
    Map ping_actions = cast get(mc, 'ping_actions);
    synchronized(ping_actions) {
      ping_actions.put(t, "cancelled");
      set(mc, ping_anyActions := true);
    }
  } else*/ synchronized(ping_actions) {
    ping_actions.put(t, "cancelled");
    ping_anyActions = true;
  }
}


static String autoFrameTitle_value;

static String autoFrameTitle() {
  return autoFrameTitle_value != null ? autoFrameTitle_value : getProgramTitle();
}

static void autoFrameTitle(Component c) {
  setFrameTitle(getFrame(c), autoFrameTitle());
}
static void registerEscape_rootPane(JComponent rootPane, final Runnable r) {
  String name = "Escape";
  Action action = abstractAction(name, r);
  KeyStroke keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
  rootPane.getActionMap().put(name, action);
  rootPane.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(keyStroke, name);
}
static <A> A heldInstance(Class<A> c) {
  List<Object> l = holdInstance_l.get();
  for (int i = l(l)-1; i >= 0; i--) {
    Object o = l.get(i);
    if (isInstanceOf(o, c))
      return (A) o;
  }
  throw fail("No instance of " + className(c) + " held");
}
static JTextField jtextfield() {
  return jTextField();
}

static JTextField jtextfield(String text) {
  return jTextField(text);
}

static JTextField jtextfield(Object o) {
  return jTextField(o);
}

static <A extends JComponent> A renameSubmitButton(A form, String newName) {
  renameButton(form, showFormSubmitButtonName(), newName);
  return form;
}

static <A extends JComponent> A renameSubmitButton(String newName, A form) {
  return renameSubmitButton(form, newName);
}
static JComponent showTitledForm(String title, Object... _parts) {
  return showFormTitled(title, _parts);
}

static BufferedImage copyImage(BufferedImage bi) {
  if (bi == null) return null;
  ColorModel cm = bi.getColorModel();
  boolean isAlphaPremultiplied = cm.isAlphaPremultiplied();
  WritableRaster raster = bi.copyData(bi.getRaster().createCompatibleWritableRaster());
  return new BufferedImage(cm, raster, isAlphaPremultiplied, null);
}
static Rect intersectRects(Rect a, Rect b) {
  int x = max(a.x, b.x), y = max(a.y, b.y);
  int x2 = min(a.x+a.w, b.x+b.w), y2 = min(a.y+a.h, b.y+b.h);
  return new Rect(x, y, x2-x, y2-y);
}
static boolean rectEmpty(Rect r) {
  return r == null || r.w <= 0 || r.h <= 0;
}
static BufferedImage decodeImage(byte[] data) { try {
  return ImageIO.read(new ByteArrayInputStream(data));
} catch (Exception __e) { throw rethrow(__e); } }
  static byte[] base64decode(String s) {
    byte[] alphaToInt = base64decode_base64toint;
    int sLen = s.length();
    int numGroups = sLen/4;
    if (4*numGroups != sLen)
      throw new IllegalArgumentException(
        "String length must be a multiple of four.");
    int missingBytesInLastGroup = 0;
    int numFullGroups = numGroups;
    if (sLen != 0) {
      if (s.charAt(sLen-1) == '=') {
        missingBytesInLastGroup++;
        numFullGroups--;
      }
      if (s.charAt(sLen-2) == '=')
        missingBytesInLastGroup++;
    }
    byte[] result = new byte[3*numGroups - missingBytesInLastGroup];

    // Translate all full groups from base64 to byte array elements
    int inCursor = 0, outCursor = 0;
    for (int i=0; i<numFullGroups; i++) {
      int ch0 = base64decode_base64toint(s.charAt(inCursor++), alphaToInt);
      int ch1 = base64decode_base64toint(s.charAt(inCursor++), alphaToInt);
      int ch2 = base64decode_base64toint(s.charAt(inCursor++), alphaToInt);
      int ch3 = base64decode_base64toint(s.charAt(inCursor++), alphaToInt);
      result[outCursor++] = (byte) ((ch0 << 2) | (ch1 >> 4));
      result[outCursor++] = (byte) ((ch1 << 4) | (ch2 >> 2));
      result[outCursor++] = (byte) ((ch2 << 6) | ch3);
    }

    // Translate partial group, if present
    if (missingBytesInLastGroup != 0) {
      int ch0 = base64decode_base64toint(s.charAt(inCursor++), alphaToInt);
      int ch1 = base64decode_base64toint(s.charAt(inCursor++), alphaToInt);
      result[outCursor++] = (byte) ((ch0 << 2) | (ch1 >> 4));

      if (missingBytesInLastGroup == 1) {
        int ch2 = base64decode_base64toint(s.charAt(inCursor++), alphaToInt);
        result[outCursor++] = (byte) ((ch1 << 4) | (ch2 >> 2));
      }
    }
    // assert inCursor == s.length()-missingBytesInLastGroup;
    // assert outCursor == result.length;
    return result;
  }

  static int base64decode_base64toint(char c, byte[] alphaToInt) {
    int result = alphaToInt[c];
    if (result < 0)
      throw new IllegalArgumentException("Illegal character " + c);
    return result;
  }

  static final byte base64decode_base64toint[] = {
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54,
    55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4,
    5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
    24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34,
    35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51
  };


static boolean allPaused() {
  return ping_pauseAll;
}


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 JPanel jFullCenter(final Component c) {
  return swing(new F0<JPanel>() { JPanel get() { try { 
    JPanel panel = new JPanel(new GridBagLayout());
    panel.add(c);
    return panel;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JPanel panel = new JPanel(new GridBagLayout);\r\n    panel.add(c);\r\n    ret panel;"; }});
}
static <A extends JComponent> A onClick(final A c, final Object runnable) {
  if (c != null) { swing(new Runnable() {  public void run() { try { 
    c.addMouseListener(new MouseAdapter() {
      public void mouseClicked(MouseEvent e) {
        callF(runnable, e);
      }
    });
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.addMouseListener(new MouseAdapter {\r\n      public void mouseClicked(MouseEv..."; }}); }
  return c;
}

// re-interpreted for buttons
static void onClick(JButton btn, final Object runnable) {
  onEnter(btn, runnable);
}
static void disposeFrame(final Component c) {
  disposeWindow(c);
}
static String getFrameTitle(Component c) {
  JFrame f = getFrame(c);
  return f == null ? null : f.getTitle();
}
static void internalFrameTitlePopupMenuItem(JInternalFrame f, final String name, final Object action) {
  internalFrameTitlePopupMenu(f, new VF1<JPopupMenu>() { public void get(JPopupMenu menu) { try { 
    addMenuItem(menu, name, action)
  ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "addMenuItem(menu, name, action)"; }});
}
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 File getCachedTranspilationFile(String id) {
  return newFile(getCodeProgramDir(id), "Transpilation");
}

static <A> A vmGeneralMap_get(Object key) {
  return vm_generalMap_get(key);
}
static String loadProgramTextFile(String name) {
  return loadTextFile(getProgramFile(name));
}

static String loadProgramTextFile(String progID, String name) {
  return loadTextFile(getProgramFile(progID, name));
}

static String loadProgramTextFile(String progID, String name, String defaultText) {
  return loadTextFile(getProgramFile(progID, name), defaultText);
}
static String loadPage_utf8(URL url) {
  return loadPage_utf8(url.toString());
}

static String loadPage_utf8(String url) {
  loadPage_charset.set("UTF-8");
  try {
    return loadPage(url);
  } finally {
    loadPage_charset.set(null);
  }
}
static void saveTranspiledCode(String progID, String code) {
  File dir = getCodeProgramDir(progID);
  new File(dir, "Transpilation").delete();
  saveGZTextFile(new File(dir, "Transpilation.gz"), code);
}
static int leftScanModifiers(List<String> tok, int i) {
  List<String> mod = getJavaModifiers();
  while (i > 1 && mod.contains(tok.get(i-2)))
    i -= 2;
  return i;
}

  static File makeTempDir() {
    return (File) call(getJavaX(), "TempDirMaker_make");
  }
static File linux_fileInRamDisk(String name) {
  if (!isLinux()) return null;
  File dir = newFile("/dev/shm");
  if (dir.isDirectory()) return newFile(dir, name);
  return null;
}
static String aGlobalID() {
  return randomID(globalIDLength());
}
static boolean isMarkedAsSrcLib(String snippetID) {
  return snippetID != null && fileExists(javaxCodeDir("srclibs/" + psI(snippetID)));
}
static <A, B> A pairA(Pair<A, B> p) {
  return p == null ? null : p.a;
}
static Object hotwire_onCompile; // voidfunc(Pair<jarFile, transpiledSource>)
static boolean hotwire_serially;
static Lock hotwire_overInternalBot_lock = lock();
static boolean hotwire_compileOnServer;

static Class<?> hotwire_overInternalBot(String progID) {
  return hotwire_overInternalBot(progID, "main");
}

static Class<?> hotwire_overInternalBot(String progID, String mainClass) { try {
  Pair<File, String> p = hotwire_compile(progID);
  File jar = p.a;
  assertTrue(jar.getAbsolutePath(), jar.isFile());
  
  List<File> files = hotwire_collectJars(jar);

  // make class loader
  JavaXClassLoader classLoader = hotwire_makeClassLoader(files);
  classLoader.progID = progID;
  
  return hotwire_finish(classLoader, progID, p.b, mainClass);
} catch (Exception __e) { throw rethrow(__e); } }

// returns pair(jar, transpiled src)
static Pair<File, String> hotwire_compile(String progID) {
  Pair<File, String> p = hotwire_compileOnServer && !isLocalSnippetID(progID)
    ? compileSnippetThroughServer(progID)
    : CompilerBot.compileSnippet2(progID);
  Lock __679 = hotwire_serially ? hotwire_overInternalBot_lock : null; lock(__679); try {
  callF(hotwire_onCompile, p);
  return p;
} finally { unlock(__679); } }
static void markAsSrcLib(String snippetID) {
  saveTextFile(javaxCodeDir("srclibs/" + psI(snippetID)), "");
}
static int latestInstalledJavaX() {
  File[] files = new File(userHome(), ".javax").listFiles();
  int v = 0;
  if (files != null) for (File f : files) {
    Matcher m = Pattern.compile("x(\\d\\d\\d?)\\.jar").matcher(f.getName());
    if (m.matches())
      v = Math.max(v, Integer.parseInt(m.group(1)));
  }
  return v;
}
static List<File> filesWithExtension(String ext, List<File> files) {
  return filesEndingWith(files, addPrefixIfNotEmpty2(".", ext));
}
static List<File> findAllFiles_noDirs(List dirs) {
  return findAllFiles_noDirs(asObjectArray(dirs));
}

// dirs are String's or File's
static List<File> findAllFiles_noDirs(Object... dirs) {
  List<File> l = new ArrayList();
  for (Object dir : dirs) {
    if (dir instanceof String && ((String) dir).endsWith("/.")) {
      // "/." means non-recurse
      for (File f : listFiles(dropSuffix("/.", (String) dir)))
        if (f.isFile()) l.add(f);
    } else
      findAllFiles_noDirs_impl(toFile(dir), l);
  }
  return l;
}

static void findAllFiles_noDirs_impl(File dir, List<File> l) {
  for (File f : listFiles(dir)) {
    if (f.isDirectory())
      findAllFiles_noDirs_impl(f, l);
    else
      l.add(f);
  }
}

static File[] listFiles(File dir) {
  File[] files = dir.listFiles();
  return files == null ? new File[0] : files;
}

static File[] listFiles(String dir) {
  return listFiles(new File(dir));
}
static void sortFilesByName(List<File> l) {
  sort(l, new Comparator<File>() {
    public int compare(File a, File b) {
      return stdcompare(a.getName(), b.getName());
    }
  });
}
static int deleteAllFilesInDirectory_minPathLength = 10;

static void deleteAllFilesInDirectory(File dir) {
  deleteAllFilesInDirectory(dir, false, false);
}

static void deleteAllFilesInDirectory(File dir, boolean verbose, boolean testRun) {
  dir = getCanonicalFile(dir);
  assertTrue(f2s(dir), l(f2s(dir)) >= deleteAllFilesInDirectory_minPathLength);
  File[] files = dir.listFiles();
  if (files == null) return;
  for (File f : files) {
    if (!isSymLink(f) && f.isDirectory()) // just delete the symlink, don't follow it
      deleteDirectory(f, verbose, testRun);
    else {
      if (verbose)
        print((testRun ? "Would delete " : "Deleting ") + f.getAbsolutePath());
      if (!testRun)
        f.delete();
    }
  }
}

static <A> A callJavaX(String method, Object... args) {
  return (A) callOpt(getJavaX(), method, args);
}
static boolean containsNewLines(String s) {
  return containsNewLine(s);
}
static String jlabel_textAsHTML_center(String text) {
  return "<html><div style=\"text-align: center;\">"
    + replace(htmlencode(text), "\n", "<br>")
    + "</div></html>";
}
static ClassLoader getClassLoaderOrSame(Object o) {
  return o instanceof ClassLoader ? (ClassLoader) o : getClassLoader(o);
}
static void printShortException(Throwable e) {
  print(exceptionToStringShort(e));
}
static boolean java10OrHigher() {
  return parseFirstInt(javaVersion()) >= 10;
}
static boolean addDefaultVMOption(String option) {
  String s = defaultVMArgs(), old = s;
  if (!s.contains(option)) // rough
    s = trim(s + " " + option);
  if (eq(old, s)) return false;
  { setDefaultVMArgs(s); return true; }
}
static byte[] intToBytes(int i) {
  return new byte[] {
          (byte) (i >>> 24),
          (byte) (i >>> 16),
          (byte) (i >>> 8),
          (byte) i};
}
static int hashCode(Object a) {
  return a == null ? 0 : a.hashCode();
}


static String getProgramTitle() {
  return getProgramName();
}
static boolean isInstanceOf(Object o, Class type) {
  return type.isInstance(o);
}
static JTextField jTextField() {
  return jTextField("");
}

static JTextField jTextField(final String text) {
  return swing(new F0<JTextField>() { JTextField get() { try { 
    JTextField tf = new JTextField(unnull(text));
    standardTextFieldPopupMenu(tf);
    jenableUndoRedo(tf);
    tf.selectAll();
    return tf;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JTextField tf = new JTextField(unnull(text));\r\n    standardTextFieldPopupMenu..."; }});
}

static JTextField jTextField(Object o) {
  return jTextField(strOrEmpty(o));
}

static JButton renameButton(JComponent c, String name) {
  JButton b = first(childrenOfType(c, JButton.class));
  if (b != null)
    b.setText(name);
  return b;
}

static JButton renameButton(JComponent c, String oldName, String newName) {
  JButton b = findButton(c, oldName);
  if (b != null) b.setText(newName);
  return b;
}
static String showFormSubmitButtonName() {
  return "Submit";
}
static int showForm_defaultGap = 4;
static int showForm_gapBetweenColumns = 10;

static JPanel showFormTitled(final String title, final Object... _parts) {
  JDesktopPane desktop = mainDesktopPane();
  if (desktop != null) return showInternalFrameFormTitled(desktop, title, _parts);
  return swing(new F0<JPanel>() { JPanel get() { try { 
    final Var<JFrame> frame = new Var();
    JPanel panel = showForm_makePanel(false, _parts);
    frame.set(showForm_makeFrame(title, panel));
    return panel;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "final new Var<JFrame> frame;\r\n    JPanel panel = showForm_makePanel(false, _p..."; }});
}

static JPanel showForm_makePanel(Boolean internalFrame, Object... _parts) {
  List<JComponent> out = showForm_arrange1(showForm_makeComponents(internalFrame, _parts));
  return vstackWithSpacing(out, showForm_defaultGap);
}
// menuMaker = voidfunc(JPopupMenu)
static void internalFrameTitlePopupMenu(final JInternalFrame f, final Object... params) {
  { swing(new Runnable() {  public void run() { try { 
    Object menuMaker;
    if (l(params) == 1)
      menuMaker = params[0];
    else
      menuMaker = new VF1<JPopupMenu>() { public void get(JPopupMenu menu) { try {  addMenuItems(menu, params) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "addMenuItems(menu, params)"; }};
    
    Component titleComponent = getInternalFrameTitlePaneComponent(f);
    if (!(titleComponent instanceof JComponent))
      print("Can't add internal frame title popup menu!");
    else
      componentPopupMenu((JComponent) titleComponent, menuMaker);
      
    // Also add to the frame so we can show the items e.g. in a JFrame menu
    componentPopupMenu(f, menuMaker);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "Object menuMaker;\r\n    if (l(params) == 1)\r\n      menuMaker = params[0];\r\n   ..."; }}); }
}
static String loadGZTextFile(File file) { try {
  if (!file.isFile()) return null;
  ByteArrayOutputStream baos = new ByteArrayOutputStream();
  InputStream fis = new FileInputStream(file);
  GZIPInputStream gis = newGZIPInputStream(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 File getCodeProgramDir() {
  return getCodeProgramDir(getProgramID());
}

static File getCodeProgramDir(String snippetID) {
  return new File(javaxCodeDir(), formatSnippetID(snippetID));
}

static File getCodeProgramDir(long snippetID) {
  return getCodeProgramDir(formatSnippetID(snippetID));
}
static void saveGZTextFile(File file, String contents) { try {
  File parentFile = file.getParentFile();
  if (parentFile != null)
    parentFile.mkdirs();
  String tempFileName = file.getPath() + "_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());
    GZIPOutputStream gos = new GZIPOutputStream(fileOutputStream);
    OutputStreamWriter outputStreamWriter = new OutputStreamWriter(gos, "UTF-8");
    PrintWriter printWriter = new PrintWriter(outputStreamWriter);
    printWriter.print(contents);
    printWriter.close();
    gos.close();
    fileOutputStream.close();
  }
  
  if (file.exists() && !file.delete())
    throw new IOException("Can't delete " + file.getPath());

  if (contents != null)
    if (!tempFile.renameTo(file))
      throw new IOException("Can't rename " + tempFile + " to " + file);
} catch (Exception __e) { throw rethrow(__e); } }
static List<String> getJavaModifiers_list = litlist("static", "abstract", "public", "private", "protected", "final", "native", "volatile", "synchronized", "transient");

static List<String> getJavaModifiers() {
  return getJavaModifiers_list;
}
static Cache<Boolean> isLinux_cache = new Cache("isLinux_load");
static boolean isLinux() { return isLinux_cache.get(); }

static Boolean isLinux_load() {
  return !isWindows() && !isMac() && !isAndroid();
}

static int randomID_defaultLength = 12;

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

static String randomID() {
  return randomID(randomID_defaultLength);
}
static int globalIDLength() {
  return 16;
}
static File javaxCodeDir_dir; // can be set to work on different base dir

static File javaxCodeDir() {
  return javaxCodeDir_dir != null ? javaxCodeDir_dir : new File(userHome(), "JavaX-Code");
}

static File javaxCodeDir(String sub) {
  return newFile(javaxCodeDir(), sub);
}
static List<File> hotwire_collectJars(File jar) {
  List<String> libIDs = hotwire_libraryIDsFromJar_deleteJarOnFail(jar);
  List<File> files = ll(jar); // main program has to be first entry! (e.g. for hotwire_makeClassLoader_stickyAndSrcLibs)
  for (String libID : libIDs)
    files.add(loadLibraryOrSrcLib(libID));
  return files;
}
static Class hotwire_finish(ClassLoader classLoader, String progID, String javaSource) {
  return hotwire_finish(classLoader, progID, javaSource, "main");
}

static Class hotwire_finish(ClassLoader classLoader, String progID, String javaSource, String mainClass) { try {
  // load & return main class
  Class<?> theClass = classLoader.loadClass(mainClass);
  
  Class j = getJavaX();
  
  setOpt(theClass, "myJavaSource_code", javaSource);
  
  synchronized(j) { // hopefully this goes well...
    call(j, "setVars", theClass, progID);
    callOpt(j, "addInstance", progID, theClass);
  }
  
  hotwire_copyOver(theClass);
  return theClass;
} catch (Exception __e) { throw rethrow(__e); } }
// returns (jar, transpiled src)
static Pair<File, String> compileSnippetThroughServer(String progID) {
  String transpiledSrc = getServerTranspiled2(progID);
  String md5 = md5(transpiledSrc + "\n" + progID);
  File jar = CompilerBot.getJarFile(md5);
  if (jar == null || jar.length() <= 22) {
    byte[] jarData = null;
    try {
      jarData = loadBinaryPage("http://www.botcompany.de/jar/" + psI(progID) + "?md5=" + md5(transpiledSrc));
    } catch (Throwable __e) { _handleException(__e); }
    if (!isJAR(jarData)) {
      print(bytesToHex(takeFirstOfByteArray(8, jarData)));
      print("fallback to CompilerBot: " + fromUtf8(takeFirstOfByteArray(80, jarData)));
      return CompilerBot.compileSnippet2(progID);
    }
    saveBinaryFile(jar, jarData);
  }
  return pair(jar, transpiledSrc);
}
static List<File> filesEndingWith(File dir, String suffix) {
  return listFilesWithSuffix(dir, suffix);
}

static List<File> filesEndingWith(List<File> l, String suffix) {
  List<File> out = new ArrayList();
  for (File f : unnull(l))
    if (!f.isDirectory() && (empty(suffix) || endsWithIgnoreCase(f.getName(), suffix)))
      out.add(f);
  return out;
}
static File toFile(Object o) {
  if (o instanceof File) return (File) o;
  if (o instanceof String) return new File((String) o);
  throw fail("Not a file: " + o);
}
static <T> void sort(T[] a, Comparator<? super T> c) {
  Arrays.sort(a, c);
}

static <T> void sort(T[] a) {
  Arrays.sort(a);
}

static <T> void sort(List<T> a, Comparator<? super T> c) {
  Collections.sort(a, c);
}

static void sort(List a) {
  Collections.sort(a);
}
static File getCanonicalFile(File f) { try {
  return f == null ? null : f.getCanonicalFile();
} catch (Exception __e) { throw rethrow(__e); } }


static boolean isSymLink(File f) {
  return f != null && Files.isSymbolicLink(toPath(f));
}
static boolean containsNewLine(String s) {
  return contains(s, '\n'); // screw \r, nobody needs it
}
static <A> List<A> replace(List<A> l, A a, A b) {
  for (int i = 0; i < l(l); i++)
    if (eq(l.get(i), a))
      l.set(i, b);
  return l;
}

static String replace(String s, String a, String b) {
  return s == null ? null : a == null || b == null ? s : s.replace(a, b);
}

static String replace(String s, char a, char b) {
  return s == null ? null : s.replace(a, b);
}
static String htmlencode(Object o) {
  return htmlencode(str(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 >= 0x100)
        out.append("&#x").append(charToHex(c)).append(';');
      else*/ if (c > 127 || c == '"' || c == '<' || c == '>' || c == '&')
          out.append("&#").append((int) c).append(';');
      else
          out.append(c);
  }
  return out.toString();
}
static ClassLoader getClassLoader(Object o) {
  return o == null ? null : _getClass(o).getClassLoader();
}
static int parseFirstInt(String s) {
  return parseInt(jextract("<int>", s));
}
static String javaVersion() {
  return System.getProperty("java.version");
}
static String defaultVMArgs() {
  return javaxDefaultVMArgs();
}
static void setDefaultVMArgs(String args) {
  String oldArgs = javaxDefaultVMArgs();
  args = trim(args);
  if (neq(unnull(oldArgs), unnull(args))) {
    print();
    print("Changing default VM arguments from");
    print("  " + oldArgs);
    print("to");
    print("  " + args);
    print();
    saveTextFile(javaxDataDir("default-vm-args"), nullIfEmpty(args));
  }
}


static JTextField standardTextFieldPopupMenu(final JTextField tf) {
  final WeakReference<JTextField> ref = weakRef(tf);
  componentPopupMenuItem(tf, "Copy text to clipboard", new Runnable() {  public void run() { try { 
    copyTextToClipboard(ref.get().getText())
  ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "copyTextToClipboard(ref.get().getText())"; }});
  componentPopupMenuItem(tf, "Paste", new Runnable() {  public void run() { try {  ref.get().paste() ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "ref.get().paste()"; }});
  return tf;
}
static String strOrEmpty(Object o) {
  return o == null ? "" : str(o);
}
static JButton findButton(Component c, String name) {
  for (JButton b : childrenOfType(c, JButton.class))
    if (eq(b.getText(), name)) return b;
  for (JButton b : childrenOfType(getFrame(c), JButton.class))
    if (eq(b.getText(), name)) return b;
  return null;
}

static JButton findButton(Component c) {
  return childOfType(c, JButton.class);
}
static JPanel showInternalFrameFormTitled(final JDesktopPane desktop, final String title, final Object... _parts) {
  JPanel panel = showForm_makePanel(true, _parts);
  showForm_makeInternalFrame(desktop, title, panel);
  return panel;
}
static JFrame showForm_makeFrame(String title, JPanel panel) {
  return handleEscapeKey(minFrameWidth(showPackedFrame(title, withMargin(panel)), 400));
}
static List<JComponent> showForm_arrange1(List<List<JComponent>> l) {
  int minW = showForm_leftWidth(l);

  List<JComponent> out = new ArrayList();
  for (List<JComponent> row : l)
    out.add(westAndCenter(withRightMargin(showForm_gapBetweenColumns, jMinWidth(minW, first(row))), second(row)));
  return out;
}
static List<List<JComponent>> showForm_makeComponents(final Boolean internalFrame, Object... _parts) {
  List < List < JComponent > > l = new ArrayList();
  List parts = asList(_parts);
  JButton submitButton = null;
  for (int i = 0; i < l(parts); i++) {
    final Object o = parts.get(i), next = get(parts, i+1);
    if (o instanceof String && next instanceof Component)
      setComponentID((Component) next, (String) o);
    
    if (o instanceof Component || o instanceof String || next instanceof Component) { // smartAdd accepts strings
      l.add(mapLL("wrapForSmartAdd",
          o == null ? new JPanel()
        : o instanceof String ? humanizeFormLabel((String) o)
        : o, next));
      if (next instanceof JButton && submitButton == null)
        submitButton = (JButton) next;
      i++;
    } else if (isRunnable(o))
      l.add(mapLL("wrapForSmartAdd",null, submitButton = jbutton(showFormSubmitButtonName(), new Runnable() {  public void run() { try { 
        Object result = call(o);
        if (neq(Boolean.FALSE, result)) {
          if (isTrue(internalFrame))
            disposeInternalFrame(heldInstance(JButton.class));
          else if (isFalse(internalFrame))
            disposeFrame(heldInstance(JButton.class));
        }
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "Object result = call(o);\r\n        if (neq(Boolean.FALSE, result)) {\r\n        ..."; }})));
    else print("showForm: Unknown element type: " + getClassName(o));
  }
  if (submitButton != null) {
    final JButton _submitButton = submitButton;
    onEnterInAllTextFields(concatLists(l), new Runnable() {  public void run() { try {  clickButton(_submitButton) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "clickButton(_submitButton)"; }});
  }
  
  // massage labels
  for (List<JComponent> row : l) {
    JComponent left = first(row);
    if (left instanceof JLabel) makeBold((JLabel) left).setVerticalAlignment(JLabel.TOP);
  }
  
  return l;
}
static void addMenuItems(JMenu m, Object... x) {
  fillJMenu(m, x);
}

static void addMenuItems(JPopupMenu m, Object... x) {
  fillJPopupMenu(m, x);
}
public static boolean isWindows() {
  return System.getProperty("os.name").contains("Windows");
}
  static boolean isMac() {
    return System.getProperty("os.name").toLowerCase().contains("mac");
	}
static List<String> hotwire_libraryIDsFromJar_deleteJarOnFail(File jar) {
  try {
    return hotwire_libraryIDsFromJar(jar);
  } catch (Throwable _e) {
    jar.delete();
  
throw rethrow(_e); }
}
static byte[] isJAR_magic = bytesFromHex("504B0304");

static boolean isJAR(byte[] data) {
  return byteArrayStartsWith(data, isJAR_magic);
}

static boolean isJAR(File f) {
  return isJAR(loadBeginningOfBinaryFile(f, l(isJAR_magic)));
}
static byte[] takeFirstOfByteArray(byte[] b, int n) {
  return subByteArray(b, 0, n);
}

static byte[] takeFirstOfByteArray(int n, byte[] b) {
  return takeFirstOfByteArray(b, n);
}
static List<File> listFilesWithSuffix(File dir, String suffix) {
  List<File> l = new ArrayList();
  for (File f : listFiles(dir))
    if (!f.isDirectory() && (empty(suffix) || endsWithIgnoreCase(f.getName(), suffix)))
      l.add(f);
  return l;
}


static Path toPath(File f) {
  return f == null ? null : f.toPath();
}
// returns from C to C
static String jextract(String pat, String s) {
  return jextract(pat, javaTok(s));
}

static String jextract(String pat, List<String> tok) {
  List<String> tokpat = javaTok(pat);
  jfind_preprocess(tokpat);
  int i = jfind(tok, tokpat);
  if (i < 0) return null;
  int j = i + l(tokpat) - 2;
  return joinSubList(tok, i, j);
}

static String javaxDefaultVMArgs() {
  File fileNew, fileOld;
  String text = loadTextFile(fileNew = javaxDataDir("default-vm-args"));
  if (text == null) {
    text = loadTextFile(fileOld = programFile("#1005850", "default-vm-args"));
    if (text != null)
      moveFile(fileOld, fileNew);
  }
  return trim(unnull(text));
}


static <A extends JComponent> A componentPopupMenuItem(A c, final String name, final Object action) {
  componentPopupMenu(c, new VF1<JPopupMenu>() { public void get(JPopupMenu menu) { try { 
    addMenuItem(menu, name, action);
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "addMenuItem(menu, name, action);"; }});
  return c;
}

static void componentPopupMenuItem(JComponent c, final JMenuItem menuItem) {
  componentPopupMenu(c, new VF1<JPopupMenu>() { public void get(JPopupMenu menu) { try { 
    addMenuItem(menu, menuItem);
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "addMenuItem(menu, menuItem);"; }});
}
static <A> A childOfType(Component c, Class<A> theClass) {
  return first(childrenOfType(c, theClass));
}

static <A> A childOfType(Class<A> theClass, Component c) {
  return childOfType(c, theClass);
}
static JInternalFrame showForm_makeInternalFrame(JDesktopPane desktop, String title, JPanel panel) {
  JInternalFrame f = addInternalFrame(desktop, title, withMargin(panel));
  minInternalFrameWidth(f, 400);
  packInternalFrameVertically(f);
  centerInternalFrame(f);
  // TODO: handleEscapeKey(f);
  return f;
}
static JFrame handleEscapeKey(final JFrame frame) {
  KeyStroke stroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
  frame.getRootPane().registerKeyboardAction(new ActionListener() {
    public void actionPerformed(ActionEvent actionEvent) {
      frame.dispose();
    }
  }, stroke, JComponent.WHEN_IN_FOCUSED_WINDOW);
  return frame;
}

static JFrame minFrameWidth(JFrame frame, int w) {
  if (frame != null && frame.getWidth() < w)
    frame.setSize(w, frame.getHeight());
  return frame;
}

static JFrame minFrameWidth(int w, JFrame frame) {
  return minFrameWidth(frame, w);
}

static int showForm_leftWidth(List<List<JComponent>> l) {
  int minW = 0;
  for (List<JComponent> row : l)
    minW = max(minW, getMinimumSize(first(row)).width);
  return minW;
}
static JPanel westAndCenter(final Component w, final Component c) {
  return swing(new F0<JPanel>() { JPanel get() { try { 
    JPanel panel = new JPanel(new BorderLayout());
    panel.add(BorderLayout.WEST, wrap(w));
    panel.add(BorderLayout.CENTER, wrap(c));
    return panel;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JPanel panel = new JPanel(new BorderLayout);\r\n    panel.add(BorderLayout.WEST..."; }});
}
static int withRightMargin_defaultWidth = 6;

static JPanel withRightMargin(Component c) {
  return withRightMargin(withRightMargin_defaultWidth, c);
}

static JPanel withRightMargin(final int w, final Component c) {
  return swing(new F0<JPanel>() { JPanel get() { try { 
    JPanel p = new JPanel(new BorderLayout());
    p.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, w));
    p.add(c);
    return p;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JPanel p = new JPanel(new BorderLayout);\r\n    p.setBorder(BorderFactory.creat..."; }});
}
static <A extends Component> A jMinWidth(final int w, final A c) {
  if (c == null) return null;
  return swing(new F0<A>() { A get() { try { 
    Dimension size = c.getMinimumSize();
    c.setMinimumSize(new Dimension(/*max(w, size.width) ??? */w, size.height));
    return jPreferWidth(w, c);
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "Dimension size = c.getMinimumSize();\r\n    c.setMinimumSize(new Dimension(/*ma..."; }});
}
static void setComponentID(Component c, String id) {
  if (c != null) componentID_map.put(c, id);
}
static List mapLL(Object f, Object... data) {
  return map(f, ll(data));
}
static boolean isRunnable(Object o) {
  return o instanceof Runnable || hasMethod(o, "get");
}
static void disposeInternalFrame(Component c) {
  final JInternalFrame f = getInternalFrame(c);
  if (f != null) { swing(new Runnable() {  public void run() { try { 
    f.dispose();
    setOpt(f, "lastFocusOwner" , null); // Help GC
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "f.dispose();\r\n    setOpt(f, \"lastFocusOwner\" , null); // Help GC"; }}); }
}
static void onEnterInAllTextFields(JComponent c, Object action) {
  if (action == null) return;
  for (Component tf : allChildren(c))
    onEnterIfTextField(tf, action);
}

static void onEnterInAllTextFields(List c, Object action) {
  for (Object o : unnull(c))
    if (o instanceof JComponent)
      onEnterInAllTextFields((JComponent) o, action);
}
static void clickButton(final JButton b) {
  if (b != null) { swing(new Runnable() {  public void run() { try { 
    if (b.isEnabled())
      b.doClick();
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (b.isEnabled())\r\n      b.doClick();"; }}); }
}
static <A extends JComponent> A makeBold(final A c) {
  if (c != null) { swing(new Runnable() {  public void run() { try {  c.setFont(c.getFont().deriveFont(Font.BOLD)); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.setFont(c.getFont().deriveFont(Font.BOLD));"; }}); }
  return c;
}
static void fillJMenu(final JMenu m, Object... x) {
  //ifdef fillJMenu_debug
  //print("fillJMenu " + m);
  //endifdef
  if (x == null) return;
  for (int i = 0; i < l(x); i++) {
    Object o = x[i], y = get(x, i+1);
    if (o instanceof List)
      fillJMenu(m, asArray((List) o));
    else if (isMenuSeparatorIndicator(o))
      m.addSeparator();
    
    else if (o instanceof LiveValue && ((LiveValue) o).getType() == String.class && isRunnableX(y)) {
      final LiveValue<String> lv = (LiveValue<String>) ( o);
      final JMenuItem mi = jmenuItem(or2(unCurlyBracket(lv.get()), "..."), y);
      bindLiveValueListenerToComponent(mi, lv, new Runnable() {  public void run() { try { 
        String s = lv.get();
        if (isCurlyBracketed(s)) {
          setEnabled(mi, false);
          s = unCurlyBracket(s);
        } else
          setEnabled(mi, true);
        setText(mi, s);
        revalidate(m);
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "String s = lv.get();\r\n        if (isCurlyBracketed(s)) {\r\n          setEnable..."; }});
      print("bound live value " + lv + " to menu item " + mi);
      m.add(mi);
      ++i;
    }
    
    else if (o instanceof String && isRunnableX(y)) {
      m.add(jmenuItem((String) o, y));
      ++i;
    } else if (o instanceof JMenuItem)
      m.add((JMenuItem) o); // "call" might use wrong method
    else if (o instanceof String || o instanceof Action || o instanceof Component)
      call(m, "add", o);
    else if (o == null && y instanceof Runnable)
      ++i; // text == null => disabled item
    else
      print("Unknown menu item: " + o);
  }
}
static void fillJPopupMenu(JPopupMenu m, Object... x) {
  if (x == null) return;
  for (int i = 0; i < l(x); i++) {
    Object o = x[i], y = get(x, i+1);
    if (o instanceof List)
      fillJPopupMenu(m, asArray((List) o));
    else if (isMenuSeparatorIndicator(o))
      m.addSeparator();
    
    else if (o instanceof LiveValue && ((LiveValue) o).getType() == String.class && isRunnableX(y)) {
      final LiveValue<String> lv = (LiveValue<String>) ( o);
      final JMenuItem mi = jmenuItem("", y);
      bindLiveValueListenerToComponent(mi, lv, new Runnable() {  public void run() { try { 
        String s = lv.get();
        if (isCurlyBracketed(s)) {
          setEnabled(mi, false);
          s = unCurlyBracket(s);
        } else
          setEnabled(mi, true);
        setText(mi, s);
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "String s = lv.get();\r\n        if (isCurlyBracketed(s)) {\r\n          setEnable..."; }});
      m.add(mi);
    }
    
    else if (o instanceof String && isRunnableX(y)) {
      m.add(jmenuItem((String) o, y));
      ++i;
    } else if (o instanceof JMenuItem)
      m.add((JMenuItem) o); // "call" might use wrong method
    else if (o instanceof String || o instanceof Action || o instanceof Component)
      call(m, "add", o);
    else
      print("Unknown menu item: " + o);
  }
}
static List<String> hotwire_libraryIDsFromJar(File jar) {
  String dehlibs = unnull(loadTextFileFromZip(jar, "libraries"));
  return regexpExtractAll("\\d+", dehlibs);
}
static byte[] subByteArray(byte[] b, int start, int end) {
  start = max(start, 0); end = min(end, l(b));
  if (start == 0 && end == l(b)) return b;
  if (start >= end) return new byte[0];
  byte[] x = new byte[end-start];
  System.arraycopy(b, start, x, 0, end-start);
  return x;
}
static File programFile(String name) {
  return prepareProgramFile(name);
}

static File programFile(String progID, String name) {
  return prepareProgramFile(progID, name);
}
static void moveFile(File a, File b) {
  if (!renameFile(a, b))
    throw fail("File move failed: " + a + " to " + b);
}


static Map<Component, String> componentID_map = weakHashMap();

static String componentID(Component c) {
  return c == null ? null : componentID_map.get(c);
}
static ThreadLocal<Boolean> addInternalFrame_dontSelect = new ThreadLocal();
static ThreadLocal<Integer> addInternalFrame_layer = new ThreadLocal();
static ThreadLocal<Boolean> addInternalFrame_toBack = new ThreadLocal();

static JInternalFrame addInternalFrame(final JDesktopPane desktop, final String title, final int x, final int y, final int w, final int h) {
  return addInternalFrame(desktop, title, x, y, w, h, null);
}

static JInternalFrame addInternalFrame(final JDesktopPane desktop, final String title, final int x, final int y, final int w, final int h, final Component contents) {
  return addInternalFrame(desktop, title, rect(x, y, w, h), contents);
}

static JInternalFrame addInternalFrame(final JDesktopPane desktop, final String title, final Component contents) {
  return addInternalFrame(desktop, title, null, contents);
}

static JInternalFrame addInternalFrame(final JDesktopPane desktop, final String title, final Rect r, final Component contents) {
  final boolean dontSelect = isTrue(optParam(addInternalFrame_dontSelect));
  final boolean toBack = isTrue(optParam(addInternalFrame_toBack));
  final Integer layer = optParam(addInternalFrame_layer);
  return swing(new F0<JInternalFrame>() { JInternalFrame get() { try { 
    JInternalFrame frame;
    if (contents instanceof JInternalFrame)
      frame = (JInternalFrame) contents;
    else {
      frame = jInternalFrame(title);
      setInternalFrameContents(frame, contents);
    }
    frame.setVisible(true);
    desktop.add(frame, layer);
    if (r != null)
      setBounds(frame, r);
    else
      internalFrameDefaultPosition(frame);
    if (dontSelect)
      if (toBack)
        frame.toBack();
      else
        frame.toFront();
    else
      frame.setSelected(true);
    return fixInternalFrame(frame);
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JInternalFrame frame;\r\n    if (contents instanceof JInternalFrame)\r\n      fra..."; }});
}

static JInternalFrame addInternalFrame(JDesktopPane desktop, String title) {
  return addInternalFrame(desktop, title, jpanel());
}
static JInternalFrame minInternalFrameWidth(final JInternalFrame frame, final int w) {
  { swing(new Runnable() {  public void run() { try { 
    if (frame != null && frame.getWidth() < w)
      frame.setSize(w, frame.getHeight());
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (frame != null && frame.getWidth() < w)\r\n      frame.setSize(w, frame.getH..."; }}); }
  return frame;
}

static JInternalFrame minInternalFrameWidth(int w, JInternalFrame frame) {
  return minInternalFrameWidth(frame, w);
}

static <A extends Component> A packInternalFrameVertically(A c) {
  return packInternalFrameVertically(-1, c);
}

static <A extends Component> A packInternalFrameVertically(int width, A c) {
  final JInternalFrame win = getInternalFrame(c);
  if (win == null) return c;
  final int w = width < 0 ? win.getWidth() : width;
  { swing(new Runnable() {  public void run() { try { 
    win.pack();
    win.setSize(w, win.getHeight());
    fixInternalFrame(win);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "win.pack();\r\n    win.setSize(w, win.getHeight());\r\n    fixInternalFrame(win);"; }}); }
  return c;
}
static JInternalFrame centerInternalFrame(final JInternalFrame f) {
  { swing(new Runnable() {  public void run() { try { 
    Container c = f.getParent();
    if (c != null) {
      //print("Container type: " + className(c) + ", bounds: " + c.getBounds());
      f.setLocation((c.getWidth()-f.getWidth())/2, (c.getHeight()-f.getHeight())/2);
    }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "Container c = f.getParent();\r\n    if (c != null) {\r\n      //print(\"Container ..."; }}); }
  return f;
}

static JInternalFrame centerInternalFrame(final int w, final int h, final JInternalFrame f) {
  { swing(new Runnable() {  public void run() { try { 
    f.setSize(w, h);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "f.setSize(w, h);"; }}); }
  return centerInternalFrame(f);
}
static <A extends Component> A jPreferWidth(int w, A c) {
  Dimension size = c.getPreferredSize();
  c.setPreferredSize(new Dimension(/*max(w, size.width) ??? */w, size.height));
  return c;
}
static List<Component> allChildren(Component c) {
  return childrenOfType(c, Component.class);
}
static void onEnterIfTextField(Component c, Object action) {
  if (action == null) return;
  if (c instanceof JTextField)
    onEnter((JTextField) c, action);
  else if (c instanceof JComboBox)
    onEnter((JComboBox) c, action);
}
static boolean isMenuSeparatorIndicator(Object o) {
  return eqOneOf(o, "***", "---", "===", "");
}
static boolean isRunnableX(Object o) {
  if (o == null) return false;
  if (o instanceof String) return hasMethod(mc(), (String) o);
  return o instanceof Runnable || hasMethod(o, "get");
}
static String unCurlyBracket(String s) {
  return tok_unCurlyBracket(s);
}
static boolean isCurlyBracketed(String s) {
  return isCurlyBraced(s);
}
static void setEnabled(final JComponent c, final boolean enable) {
  if (c != null) { swing(new Runnable() {  public void run() { try {  c.setEnabled(enable); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.setEnabled(enable);"; }}); }
}
static String loadTextFileFromZip(File inZip, String fileName) {
  return loadTextFileFromZipFile(inZip, fileName);
}
static List<String> regexpExtractAll(String pat, String s) {
  if (s == null) return null;
  Matcher m = regexpMatcher(pat, s);
  List<String> out = new ArrayList();
  while (m.find())
    out.add(m.group());
  return out;
}
static File prepareProgramFile(String name) {
  return mkdirsForFile(getProgramFile(name));
}

static File prepareProgramFile(String progID, String name) {
  return mkdirsForFile(getProgramFile(progID, name));
}
static boolean renameFile(File a, File b) {
  mkdirsForFile(b);
  return a.renameTo(b);
}

static boolean renameFile(File a, String newName) {
  return renameFile(a, fileInSameDir(a, newName));
}


static Rect rect(int x, int y, int w, int h) {
  return new Rect(x, y, w, h);
}
static boolean jInternalFrame_iconifiable = true;

static JInternalFrame jInternalFrame() {
  return jInternalFrame("");
}

static JInternalFrame jInternalFrame(final String title) {
  return swing(new F0<JInternalFrame>() { JInternalFrame get() { try { 
    JInternalFrame f = new JInternalFrame(title, true, true, true, jInternalFrame_iconifiable);
    f.setVisible(true);
    return f;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JInternalFrame f = new JInternalFrame(title, true, true, true, jInternalFrame..."; }});
}
static void setInternalFrameContents(final Component c, final Object contents) {
  { swing(new Runnable() {  public void run() { try { 
    JInternalFrame frame = getInternalFrame(c);
    if (frame == null) return;
    frame.getContentPane().removeAll();
    frame.getContentPane().setLayout(new BorderLayout());
    if (contents != null) frame.getContentPane().add(wrap(contents));
    revalidate(frame);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "JInternalFrame frame = getInternalFrame(c);\r\n    if (frame == null) return;\r\n..."; }}); }
}
static <A extends Component> A setBounds(final int x, final int y, final int w, final int h, final A a) {
  if (a != null) { swing(new Runnable() {  public void run() { try { 
    a.setBounds(x, y, w, h);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "a.setBounds(x, y, w, h);"; }}); }
  return a;
}

static <A extends Component> A setBounds(final A a, final Rect r) {
  if (a != null) { swing(new Runnable() {  public void run() { try { 
    a.setBounds(toRectangle(r));
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "a.setBounds(toRectangle(r));"; }}); }
  return a;
}

static <A extends Component> A setBounds(A a, int x, int y, int w, int h) {
  return setBounds(x, y, w, h, a);
}
static void internalFrameDefaultPosition(JInternalFrame f) {
  f.setSize(500, 300);
  centerInternalFrame(f);
}
static int fixInternalFrame_borderTopLeft = 0;
static int fixInternalFrame_borderBottomRight = 40; // for title bar

static JInternalFrame fixInternalFrame(final JInternalFrame f) {
  return swing(new F0<JInternalFrame>() { JInternalFrame get() { try { 
    Container c = f.getParent();
    if (c == null) return f;
    Rect r = toRect(f.getBounds());
    int a = fixInternalFrame_borderTopLeft, b = fixInternalFrame_borderBottomRight;
    Rect outer = new Rect(a, a, c.getWidth()-b, c.getHeight()-b);
    if (!rectContains(outer, r))
      f.setLocation(
        max(a, min(r.x, outer.x2())),
        max(a, min(r.y, outer.y2())));
    if (r.w > c.getWidth() || r.h > c.getHeight())
      f.setSize(c.getWidth()-a, c.getHeight()-a);
    return f;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "Container c = f.getParent();\r\n    if (c == null) ret f;\r\n    Rect r = toRect(..."; }});
}

static String tok_unCurlyBracket(String s) {
  return isCurlyBraced(s) ? join(dropFirstThreeAndLastThree(javaTok(s))) : s;
}
static boolean isCurlyBraced(String s) {
  List<String> tok = tok_combineCurlyBrackets_keep(javaTok(s));
  return l(tok) == 3 && startsWithAndEndsWith(tok.get(1), "{", "}");
}


static Rectangle toRectangle(Rect r) {
  return r == null ? null : r.getRectangle();
}
static Rect toRect(Rectangle r) {
  return r == null ? null : new Rect(r);
}
static boolean rectContains(int x1, int y1, int w, int h, Pt p) {
  return p.x >= x1 && p.y >= y1 && p.x < x1+w && p.y < y1+h;
}

static boolean rectContains(Rect a, Rect b) {
  return b.x >= a.x && b.y >= a.y && b.x2() <= a.x2() && b.y2() <= a.y2();
}
static <A> List<A> dropFirstThreeAndLastThree(List<A> l) {
  return dropFirstAndLast(3, l);
}
static List<String> tok_combineCurlyBrackets_keep(List<String> tok) {
  List<String> l = new ArrayList();
  for (int i = 0; i < l(tok); i++) {
    String t = tok.get(i);
    if (odd(i) && eq(t, "{")) {
      int j = findEndOfCurlyBracketPart(tok, i);
      l.add(joinSubList(tok, i, j));
      i = j-1;
    } else
      l.add(t);
  }
  return l;
}
static boolean startsWithAndEndsWith(String s, String prefix, String suffix) {
  return startsWith(s, prefix) && endsWith(s, suffix);
}


static <A> List<A> dropFirstAndLast(int n, List<A> l) {
  return new ArrayList(subList(l, n, l(l)-n));
}

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

static String dropFirstAndLast(String s) {
  return substring(s, 1, l(s)-1);
}
// i must point at the (possibly imaginary) opening bracket
// index returned is index of closing bracket + 1
static int findEndOfCurlyBracketPart(List<String> cnc, int i) {
  int j = i+2, level = 1;
  while (j < cnc.size()) {
    if (eq(cnc.get(j), "{")) ++level;
    else if (eq(cnc.get(j), "}")) --level;
    if (level == 0)
      return j+1;
    ++j;
  }
  return cnc.size();
}







static class TransferableImage implements Transferable {
  Image i;

  TransferableImage(Image i) {
  this.i = i;}

  public Object getTransferData( DataFlavor flavor )
  throws UnsupportedFlavorException, IOException {
      if ( flavor.equals( DataFlavor.imageFlavor ) && i != null ) {
          return i;
      }
      else {
          throw new UnsupportedFlavorException( flavor );
      }
  }

  public DataFlavor[] getTransferDataFlavors() {
      DataFlavor[] flavors = new DataFlavor[ 1 ];
      flavors[ 0 ] = DataFlavor.imageFlavor;
      return flavors;
  }

  public boolean isDataFlavorSupported( DataFlavor flavor ) {
      DataFlavor[] flavors = getTransferDataFlavors();
      for ( int i = 0; i < flavors.length; i++ ) {
          if ( flavor.equals( flavors[ i ] ) ) {
              return true;
          }
      }

      return false;
  }
}static class JSection extends SingleComponentPanel {
  JSection(Component c) { super(c); }
  
  String getTitle() {
    Border border = getBorder();
    if (border instanceof TitledBorder)
      return ((TitledBorder) border).getTitle();
    return null;
  }
}
static abstract class F2<A, B, C> {
  abstract C get(A a, B b);
}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); }
}/** 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 abstract class DialogIO {
  String line;
  boolean eos, loud, noClose;
  Lock lock = lock();
  
  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 {
    ping();
    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 SingleComponentPanel extends JPanel {
  SingleComponentPanel() { super(new BorderLayout()); }

  SingleComponentPanel(Component component) {
    this();
    if (component != null) setComponent(component);
  }

  void setComponent(final Component component) {
    { swing(new Runnable() {  public void run() { try { 
      removeAll();
      if (component != null)
        add(BorderLayout.CENTER, wrap(component));
      _revalidate(SingleComponentPanel.this);
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "removeAll();\r\n      if (component != null)\r\n        add(BorderLayout.CENTER, ..."; }}); }
  }
  
  // Sometimes we need this?
  void setComponentAndRevalidateParent(Component component) {
    setComponent(component);
    _revalidate(_getParent(this));
  }
  
  void noComponent() { setComponent(null); }
  
  Component getComponent() {
    return getComponentCount() == 0 ? null : getComponent(0);
  }
}

static Lock dbLock() {
  return mainConcepts.lock;
}
static boolean bareDBMode_on;

static void bareDBMode() {
  bareDBMode(null); // default autoSaveInterval
}

static void bareDBMode(Integer autoSaveInterval) {
  bareDBMode_on = true;
  conceptsAndBot(autoSaveInterval);
}
static <A, B> List<B> getAll(Map<A, B> map, Collection<A> l) {
  return lookupAllOpt(map, l);
}

static <A, B> List<B> getAll(Collection<A> l, Map<A, B> map) {
  return lookupAllOpt(map, l);
}
static NavigableMap synchroTreeMap() {
  return Collections.synchronizedNavigableMap(new TreeMap());
}

static boolean hasConcept(Class<? extends Concept> c, Object... params) {
  return findConceptWhere(c, params) != null;
}
static boolean exceptionMessageContains(Throwable e, String s) {
  return cic(getInnerMessage(e), s);
}
static void clearConcepts() {
  mainConcepts.clearConcepts();
}

static void clearConcepts(Concepts concepts) {
  concepts.clearConcepts();
}
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();
static ThreadLocal readLocally2_classFinder = 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 = newGZIPInputStream(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, readLocally2_classFinder.get());
          readLocally_set(obj, variableName, o);
        } finally {
          fis.close();
        }
        return;
      }
      
      readLocally_stringLength = l(value);
      if (nempty(value))
        readLocally_set(obj, variableName, unstructure(value, allDynamic, readLocally2_classFinder.get()));
    }
  }
} 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 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 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 RemoteDB connectToDBOpt(String dbNameOrID) { try {
  return new RemoteDB(dbNameOrID);
} catch (Throwable __e) { return null; } }
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_unquoteBufSize = 100;

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;
    final Object classFinder = _classFinder != null ? _classFinder : _defaultClassFinder();
    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;
    char[] unquoteBuf = new char[unstructure_unquoteBufSize];
    
    String unquote(String s) {
      return unquoteUsingCharArray(s, unquoteBuf); 
    }

    // 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("sh")) {
          consume();
          t = tpp();
          if (t.equals("-")) {
            t = tpp();
            out.set((short) (-parseInt(t))); return;
          }
          out.set((short) parseInt(t)); 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) Integer.valueOf((int) l) : (Object) Long.valueOf(l)); 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) Integer.valueOf((int) l) : (Object) Long.valueOf(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("lhs")) { parseLinkedHashSet(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("sync")) {
          consume();
          if (t().equals("tm")) {
            consume();
            { parseMap(synchronizedTreeMap(), out); return; }
          }
          if (t().equals("["))
            { parseList(synchroList(), out); return; }
          { parseMap(synchronizedMap(), out); return; }
        }
        if (t.equals("{")) {
          parseMap(out); return;
        }
        if (t.equals("[")) {
          this.parseList(new ArrayList(), 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 (or package name)
      consume();
      String className, fullClassName;
      
      // Is it a package name?
      if (eq(t(), ".")) {
        consume();
        className = fullClassName = t + "." + assertIdentifier(tpp());
      } else {
        className = t;
        fullClassName = "main$" + t;
      }
      
      if (c == null) {
        // First, find class
        if (allDynamic) c = null;
        else c = classFinder != null ? (Class) callF(classFinder, fullClassName) : findClass_fullName(fullClassName);
        if (c != null)
          classesMap.put(className, c);
      }
          
      // Check if it has an outer reference
      boolean hasBracket = eq(t(), "(");
      if (hasBracket) consume();
      boolean hasOuter = hasBracket && eq(t(), "this$1");
      
      DynamicObject dO = null;
      Object o = null;
      final String thingName = t;
      if (c != null) {
        o = hasOuter ? nuStubInnerObject(c, classFinder) : 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 = className;
        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());
            if (!eq(tpp(), "="))
              throw fail("= expected, got " + t() + " after " + quote(key) + " in object " + thingName /*+ " " + sfu(fields)*/);
            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, ..."; }});
      } 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_pcall(o, fields);
          
        }
      else for (String field : keys(fields))
        dO.fieldValues.put(intern(field), fields.get(field));

      if (o != null)
        pcallOpt_noArgs(o, "_doneLoading");
    }
    
    void parseSet(final Set set, final unstructure_Receiver out) {
      this.parseList(new ArrayList(), new unstructure_Receiver() {
        void set(Object o) {
          set.addAll((List) o);
          out.set(set);
        }
      });
    }
    
    void parseLisp(final unstructure_Receiver out) {
      
      
      throw fail("class Lisp not included");
    }
    
    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 List list, final unstructure_Receiver out) {
      consume("[");
      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(\"..."; }});
    }
    
    Object parseClass() {
      consume("class");
      consume("(");
      String name = unquote(tpp());
      consume(")");
      Class c = allDynamic ? null : classFinder != null ? (Class) callF(classFinder, name) : findClass_fullName(name);
      if (c != null) return c;
      DynamicObject dO = new DynamicObject();
      dO.className = "java.lang.Class";
      name = dropPrefix("main$", name);
      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 parseLinkedHashSet(unstructure_Receiver out) {
      consume("lhs");
      parseSet(new LinkedHashSet(), 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 {
        warn("Unknown Java object: " + j);
        return null;
      }
    }
    
    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);
            if (!eq(tpp(), "="))
              throw fail("= expected, got " + t() + " in map of size " + l(map));

            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();
    }
  }
  
  Boolean b = DynamicObject_loading.get();
  DynamicObject_loading.set(true);
  try {
    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();
  } finally {
    DynamicObject_loading.set(b);
  }
}

static boolean unstructure_debug;
static Map<Class, HashMap<String, Method>> callOpt_noArgs_cache = newDangerousWeakHashMap();

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 Concept getConcept(long id) {
  return db_mainConcepts().getConcept(id);
}

static <A extends Concept> A getConcept(Class<A> cc, long id) {
  return getConcept(db_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 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 __1110 = saveLock(); lock(__1110); 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 { unlock(__1110); } }
static void saveGZStructureToFile(String file, Object o) {
  saveGZStructureToFile(getProgramFile(file), o);
}
  
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());
  try {
    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();
  } catch (Throwable e) {
    fileOutputStream.close();
    tempFile.delete();
    throw rethrow(e);
  }
  
  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> A popFirst(List<A> l) {
  if (empty(l)) return null;
  A a = first(l);
  l.remove(0);
  return a;
}

static <A> A popFirst(Collection<A> l) {
  if (empty(l)) return null;
  A a = first(l);
  l.remove(a);
  return a;
}
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 String javaTokWordWrap(String s) {
  return javaTokWordWrap(120, s);
}

// TODO: complete trimming
static String javaTokWordWrap(int cols, String s) {
  int 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 = rtrimSpaces(t) + "\n");
    int idx = t.lastIndexOf('\n');
    if (idx >= 0) col = l(t)-(idx+1);
    else col += l(t);
  }
  return join(tok);
}
static String ymd() {
  return ymd(now());
}

static String ymd(long now) {
  return year(now) + formatInt(month(now), 2) + formatInt(dayOfMonth(now), 2);
}
static String formatInt(int i, int digits) {
  return padLeft(str(i), '0', digits);
}

static String formatInt(long l, int digits) {
  return padLeft(str(l), '0', digits);
}
static int hours() {
  return hours(java.util.Calendar.getInstance());
}

static int hours(java.util.Calendar c) {
  return c.get(java.util.Calendar.HOUR_OF_DAY);
}
static long toK(long l) {
  return (l+1023)/1024;
}
// firstDelay = delay
static FixedRateTimer doEvery_daemon(long delay, final Object r) {
  return doEvery_daemon(delay, delay, r);
}

static FixedRateTimer doEvery_daemon(long delay, long firstDelay, final Object r) {
  FixedRateTimer timer = new FixedRateTimer(true);
  timer.scheduleAtFixedRate(smartTimerTask(r, timer, delay), firstDelay, delay);
  return timer;
}

static FixedRateTimer doEvery_daemon(double delaySeconds, final Object r) {
  return doEvery_daemon(toMS(delaySeconds), r);
}
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 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 <A> A firstOfType(Collection c, Class<A> type) {
  for (Object x : c)
    if (isInstanceX(type, x))
      return (A) x;
  return null;
}
static Collection<Concept> allConcepts() {
  return db_mainConcepts().allConcepts();
}

static Collection<Concept> allConcepts(Concepts concepts) {
  return concepts.allConcepts();
}

static List<Concept> conceptsOfType(String type) {
  return db_mainConcepts().conceptsOfType(type);
}
static <A> List<A> filterByType(Iterable c, Class<A> type) {
  List<A> l = new ArrayList();
  if (c != null) 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 <A> List<A> filterByType(Class<A> type, Iterable c) {
  return filterByType(c, type);
}
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 boolean hasType(Collection c, Class type) {
  for (Object x : c)
    if (isInstanceX(type, x))
      return true;
  return false;
}
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 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 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;
}

// returns number of changes
static int cset(Concept c, Object... values) { try {
  if (c == null) return 0;
  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 = intern((String) value);
    
    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);
        if ((f.getModifiers() & java.lang.reflect.Modifier.TRANSIENT) == 0) c.change(); 
        ++changes;
      }
    }
  }
  return changes;
} catch (Exception __e) { throw rethrow(__e); } }
// magic cast
static <A> A cget(Object c, String field) {
  Object o = getOpt(c, field);
  if (o instanceof Concept.Ref) return (A) ((Concept.Ref) o).get();
  return (A) o;
}
static Object deref(Object o) {
  if (o instanceof Derefable) o = ((Derefable) o).get();
  return o;
}

static String loadConceptsStructure(String progID) {
  return loadTextFilePossiblyGZipped(getProgramFile(progID, "concepts.structure"));
}

static String loadConceptsStructure() {
  return loadConceptsStructure(dbProgramID());
}
static void cleanKillVM() { try {
  ping();
  assertNotOnAWTThread();
  cleanKillVM_noSleep();
  Object o = new Object();
  synchronized(o) { o.wait(); }
} catch (Exception __e) { throw rethrow(__e); } }

static void cleanKillVM_noSleep() {
  call(getJavaX(), "cleanKill");
}
static <A extends Concept> int countConcepts(Class<A> c, Object... params) {
  return db_mainConcepts().countConcepts(c, params);
}

static int countConcepts() {
  return db_mainConcepts().countConcepts();
}

static int countConcepts(String className) {
  return db_mainConcepts().countConcepts(className);
}

static <A extends Concept> int countConcepts(Concepts concepts, String className) {
  return concepts.countConcepts(className);
}
static <A> List<A> addDyn(List<A> l, A a) {
  if (l == null) l = new ArrayList();
  l.add(a);
  return l;
}
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 <A> List<A> removeDyn(List<A> l, A a) {
  if (l == null) return null;
  l.remove(a);
  return empty(l) ? null : l;
}


static Border getBorder(final JComponent c) {
  return c == null ? null : swing(new F0<Border>() { Border get() { try {  return c.getBorder();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret c.getBorder();"; }});
}
static String dbBotName(String progID) {
  return fsI(progID) + " Concepts";
}
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 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 Object rpc(String botName, String method, Object... args) {
  return unstructure_matchOK2OrFail(
    sendToLocalBot(botName, rpc_makeCall(method, args)));
}

static Object rpc(DialogIO bot, String method, Object... args) {
  return unstructure_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 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 void close(AutoCloseable c) {
  _close(c);
}
static volatile boolean readLine_noReadLine;

static String readLine_lastInput;
static String readLine_prefix = "[] ";

static String readLine() {
  if (readLine_noReadLine) return null;
  String s = readLineHidden();
  if (s != null) {
    readLine_lastInput = s;
    print(readLine_prefix + s);
  }
  return s;
}
  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> void removeAll(Collection<A> a, Collection<A> b) {
  if (a != null && b != null) a.removeAll(b);
}

static <A, B> void removeAll(Map<A, B> a, Collection<A> b) {
  if (a != null && b != null)
    for (A x : b)
      a.remove(x);
}
static <A extends Component> A _revalidate(A c) {
  return revalidate(c);
}



static void _revalidate(RootPaneContainer c) {
  revalidate(c);
}


static void _revalidate(JFrame f) {
  revalidate(f);
}


static void _revalidate(JInternalFrame f) {
  revalidate(f);
}
static Container _getParent(Component c) {
  return getParent(c);
}


volatile static boolean conceptsAndBot_running;

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

static void conceptsAndBot(Integer autoSaveInterval) {
  if (conceptsAndBot_running) return;
  conceptsAndBot_running = true;
  
  try {
    ensureDBNotRunning(dbBotStandardName());
  } catch (Throwable _e) {
    db_mainConcepts().dontSave = true; // SAFETY
  
throw rethrow(_e); }
  
  if (autoSaveInterval != null)
    db_mainConcepts().persist(autoSaveInterval);
  else
    db_mainConcepts().persist();
  dbBot();
}
static <A, B> List<B> lookupAllOpt(Map<A, B> map, Collection<A> l) {
  List<B> out = new ArrayList();
  if (l != null) for (A a : l)
    addIfNotNull(out, map.get(a));
  return out; 
}

static <A, B> List<B> lookupAllOpt(Collection<A> l, Map<A, B> map) {
  return lookupAllOpt(map, l);
}
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;
        return null;
      }
    }
    
  // 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 boolean cic(Collection<String> l, String s) {
  return containsIgnoreCase(l, s);
}



static boolean cic(String[] l, String s) {
  return containsIgnoreCase(l, s);
}

static boolean cic(String s, char c) {
  return containsIgnoreCase(s, c);
}

static boolean cic(String a, String b) {
  return containsIgnoreCase(a, b);
}

static String getInnerMessage(Throwable e) {
  if (e == null) return null;
  return getInnerException(e).getMessage();
}
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'
        : i == '\0' ? '_' // shouldn't happen anymore
        : (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 Map<String, String> singular_specials = litmap(
  "children", "child", "images", "image", "chess", "chess");
  
static Set<String> singular_specials2 = litset("time", "machine", "line");

static String singular(String s) {
  if (s == null) return null;
  { String _a_1201 = singular_specials.get(s); if (!empty(_a_1201)) return _a_1201; }
  //try answer hippoSingulars().get(lower(s));
  if (singular_specials2.contains(dropSuffix("s", afterLastSpace(s))))
    return dropSuffix("s", s);
  if (s.endsWith("ness")) return s;
  if (s.endsWith("ges")) return dropSuffix("s", s);
  if (endsWith(s, "bases")) return dropLast(s);
  s = dropSuffix("es", s);
  s = dropSuffix("s", s);
  return s;
}
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 Producer<String> javaTokC_noMLS_iterator(final String s) {
  return javaTokC_noMLS_iterator(s, 0);
}

static Producer<String> javaTokC_noMLS_iterator(final String s, final int startIndex) {
  return new Producer<String>() {
    final int l = s.length();
    int i = startIndex;
    
    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 String unquoteUsingCharArray(String s, char[] buf) {
  if (s == null) return null;
  if (startsWith(s, '[')) {
    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.length() > 1) {
    char c = s.charAt(0);
    if (c == '\"' || c == '\'') {
      int l = endsWith(s, c) ? s.length()-1 : s.length();
      if (l > buf.length) return unquote(s); // fallback
      int n = 0;
  
      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++;
                  }
              }
              buf[n++] = (char) Integer.parseInt(code, 8);
              continue;
          }
          switch (nextChar) {
          case '\"': ch = '\"'; break;
          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;
          // 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);
              char[] x = Character.toChars(code);
              int lx = x.length;
              for (int j = 0; j < lx; j++)
                buf[n++] = x[j];
              i += 5;
              continue;
          default:
            ch = nextChar; // added by Stefan
          }
          i++;
        }
        buf[n++] = ch;
      }
      return new String(buf, 0, n);
    }
  }
    
  return s; // not quoted - return original
}
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 String internIfLongerThan(String s, int l) {
  return s == null ? null : l(s) >= l ? intern(s) : s;
}
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 float parseFloat(String s) {
  return Float.parseFloat(s);
}
static SortedMap synchronizedTreeMap() {
  return synchroTreeMap();
}
static List parseList(String s) {
  return (List) safeUnstructure(s);
}
static Map synchronizedMap() {
  return synchroMap();
}

static <A, B> Map<A, B> synchronizedMap(Map<A, B> map) {
  return synchroMap(map);
}
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;
}
static HashMap<String,Class> findClass_fullName_cache = new HashMap();

// returns null on not found
// this is the simple version that is not case-tolerant
static Class findClass_fullName(String name) {
  synchronized(findClass_fullName_cache) {
    if (findClass_fullName_cache.containsKey(name))
      return findClass_fullName_cache.get(name);
      
    Class c;
    try {
      c = Class.forName(name);
    } catch (ClassNotFoundException e) {
      c = null;
    }
    findClass_fullName_cache.put(name, c);
    return c;
  }
}
static <A> A nuStubInnerObject(Class<A> c) {
  return nuStubInnerObject(c, null);
}

static <A> A nuStubInnerObject(Class<A> c, Object classFinder) { try {
  Class outerType = getOuterClass(c, classFinder);
  Constructor m = c.getDeclaredConstructor(outerType);
  m.setAccessible(true);
  return (A) m.newInstance(new Object[] {null});
} catch (Exception __e) { throw rethrow(__e); } }
static Map<Class, Constructor> nuEmptyObject_cache = newDangerousWeakHashMap();

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);
    }
  }

  try {
    return (A) ctr.newInstance();
  } catch (InstantiationException e) {
    if (empty(e.getMessage()))
      if ((c.getModifiers() & Modifier.ABSTRACT) != 0)
        throw fail("Can't instantiate abstract class " + className(c), e);
      else
        throw fail("Can't instantiate " + className(c), e);  
    else throw rethrow(e);
  }
} 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 void printStructure(String prefix, Object o) {
  if (endsWithLetter(prefix)) prefix += ": ";
  print(prefix + structureForUser(o));
}

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

static void setOptAllDyn(DynamicObject o, Map<String, Object> fields) {
  if (fields == null) return;
  HashMap<String, Field> fieldMap = instanceFieldsMap(o);
  for (Map.Entry<String, Object> e : fields.entrySet()) {
    String field = e.getKey();
    Object val = e.getValue();
    boolean has = fieldMap.containsKey(field);
    if (has)
      setOpt(o, field, val);
    else {
      o.fieldValues.put(intern(field), val);
      
    }
  }
}
static void setOptAll_pcall(Object o, Map<String, Object> fields) {
  if (fields == null) return;
  for (String field : keys(fields))
    try { setOpt(o, field, fields.get(field)); } catch (Throwable __e) { print(exceptionToStringShort(__e)); }
}

static void setOptAll_pcall(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];
    try { setOpt(o, field, value); } catch (Throwable __e) { print(exceptionToStringShort(__e)); }
  }
}
static String intern(String s) {
  return fastIntern(s);
}
static void pcallOpt_noArgs(Object o, String method) {
  try { callOpt_noArgs(o, method); } catch (Throwable __e) { _handleException(__e); }
}
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 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 Lock saveLock_lock = fairLock();

static Lock saveLock() {
  return saveLock_lock;
}
static File tempFileFor(File f) {
  return new File(f.getPath() + "_temp");
}
static String formatDouble(double d, int digits) {
  String format = digits <= 0 ? "0" : "0." + rep(digits, '#');
  return new java.text.DecimalFormat(format, new java.text.DecimalFormatSymbols(Locale.ENGLISH)).format(d);
}

static double toM_double(long l) {
  return l/(1024*1024.0);
}
public static String rtrimSpaces(String s) {
  if (s == null) return null;
  int i = s.length();
  while (i > 0 && " \t".indexOf(s.charAt(i-1)) >= 0)
    --i;
  return i < s.length() ? s.substring(0, i) : s;
}
static int year() {
  return localYear();
}

static int year(long now) {
  return localYear(now);
}
static int month() {
  return localMonth();
}

static int month(long now) {
  return localMonth(now);
}
static int dayOfMonth() {
  return localDayOfMonth();
}

static int dayOfMonth(long now) {
  return localDayOfMonth(now);
}
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 dynamicClassName(Object o) {
  if (o instanceof DynamicObject && ((DynamicObject) o).className != null)
    return "main$" + ((DynamicObject) o).className;
  return className(o);
}
static int csetAll(Concept c, Object... values) {
  return cset(c, values);
}
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;
}

static void warnIfOddCount(Object... list) {
  if (odd(l(list)))
    printStackTrace("Odd list size: " + list);
}
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 Object derefRef(Object o) {
  if (o instanceof Concept.Ref) o = ((Concept.Ref) o).get();
  return o;
}

static String dbProgramID() {
  return getDBProgramID();
}
static void assertNotOnAWTThread() {
  assertFalse("Can't do this in AWT thread", isAWTThread());
}
  
static boolean containsIgnoreCase(Collection<String> l, String s) {
  if (l != null) for (String x : l)
    if (eqic(x, s))
      return true;
  return false;
}

static boolean containsIgnoreCase(String[] l, String s) {
  if (l != null) 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 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 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) {
  this.port = port;
  this.ip = ip; try {
    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 {
    Lock __1295 = lock; lock(__1295); try {
    w.write(line + "\n");
    w.flush();
  } finally { unlock(__1295); } } 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;
  }
}
// works on lists and strings and null

static int indexOfIgnoreCase(List<String> a, String b) {
  return indexOfIgnoreCase(a, b, 0);
}

static int indexOfIgnoreCase(List<String> a, String b, int i) {
  int n = l(a);
  for (; i < n; i++)
    if (eqic(a.get(i), b)) return i;
  return -1;
}

static int indexOfIgnoreCase(String a, String b) {
  return indexOfIgnoreCase_manual(a, b);
  /*Matcher m = Pattern.compile(b, Pattern.CASE_INSENSITIVE + Pattern.LITERAL).matcher(a);
  if (m.find()) return m.start(); else ret -1;*/
}
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 String firstPartOfHelloString(String s) {
  int i = s.lastIndexOf('/');
  return i < 0 ? s : rtrim(s.substring(0, i));
}
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 getBotAddress(String bot) {
  List<ScannedBot> l = fullBotScan(bot);
  return empty(l) ? null : first(l).address;
}
static Object unstructure_matchOK2OrFail(String s) {
  if (swic(s, "ok "))
    return unstructure_startingAtIndex(s, 3);
  else
    throw fail(s);
}
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 String format(String pat, Object... args) {
    return format3(pat, args);
  }

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 = unlisted(c);
    csetAll(x, params);
    cc.register(x);
  }
  return x;
}
static String readLineHidden() { try {
  if (get(javax(), "readLine_reader") == null)
    set(javax(), "readLine_reader" , new BufferedReader(new InputStreamReader(System.in, "UTF-8")));
  try {
    return ((BufferedReader) get(javax(), "readLine_reader")).readLine();
  } finally {
    consoleClearInput();
  }
} catch (Exception __e) { throw rethrow(__e); } }
// 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 == (char) 0x201C || c == (char) 0x201D) c = '"'; // normalize quotes
    if (c == '\'' || c == '"') {
      char opener = c;
      ++j;
      while (j < l) {
        char _c = s.charAt(j);
        if (_c == (char) 0x201C || _c == (char) 0x201D) _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 boolean isNonNegativeInteger(String s) {
  int n = l(s);
  if (n == 0) return false;
  int i = 0;
  while (i < n) {
    char c = s.charAt(i);
    if (c < '0' || c > '9') return false;
    ++i;
  }
  return true;
}


static void ensureDBNotRunning(String name) {
  if (hasBot(name)) {
    try {
      String id = fsI(dropAfterSpace(name));
      String framesBot = id + " Frames";
      print("Trying to activate frames of running DB: " + id);
      if (isOK(sendOpt(framesBot, "activate frames")) && isMainProgram())
        cleanKill();
    } catch (Throwable __e) { _handleException(__e); }
    throw fail("Already running: " + name);
  }
}

static void ensureDBNotRunning() {
  ensureDBNotRunning(dbBotStandardName());
}
static String dbBotStandardName() {
  String home = userHome();
  String name = dbBotName(getDBProgramID());
  if (neq(home, actualUserHome()))
    name += " " + quote(home);
  return name + ".";
}
static volatile Android3 dbBot_instance;

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

static Android3 dbBot(String name) {
  ensureDBNotRunning(name);
  assertNotNull(mainConcepts);
  return dbBot_instance = methodsBot2(name, mainConcepts, db_standardExposedMethods(), mainConcepts.lock);
}
static <A> HashSet<A> litset(A... items) {
  return lithashset(items);
}
static String afterLastSpace(String s) {
  return s == null ? null : substring(s, s.lastIndexOf(' ')+1);
}
static String dropSuffixIgnoreCase(String suffix, String s) {
  return ewic(s, suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
static String quickSubstring(String s, int i, int j) {
  if (i == j) return "";
  return s.substring(i, j);
}
static Object safeUnstructure(String s) {
  return unstructure(s, true);
}
static Class getOuterClass(Class c) {
  return getOuterClass(c, null);
}

static Class getOuterClass(Class c, Object classFinder) { try {
  String s = c.getName();
  int i = s.lastIndexOf('$');
  String name = substring(s, 0, i);
  if (classFinder != null) return (Class) callF(classFinder, name);
  return Class.forName(name);
} catch (Exception __e) { throw rethrow(__e); } }
static boolean endsWithLetter(String s) {
  return nempty(s) && isLetter(last(s));
}
static String structureForUser(Object o) {
  return beautifyStructure(struct_noStringSharing(o));
}
static HashMap<String, Field> instanceFieldsMap(Object o) {
  Class c = o.getClass();
  HashMap<String, Field> map;
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  return map;
}

static Method fastIntern_method;

static String fastIntern(String s) { try {
  if (s == null) return null;
  if (fastIntern_method == null) {
    fastIntern_method = findMethodNamed(javax(), "internPerProgram");
    if (fastIntern_method == null) upgradeJavaXAndRestart();
  }
    
  return (String) fastIntern_method.invoke(null, s);
} catch (Exception __e) { throw rethrow(__e); } }
// 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 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 int localYear() {
  return localYear(now());
}

static int localYear(long time) {
  return parseInt(simpleDateFormat_local("yyyy").format(time));
}
static int localMonth(long time) {
  return parseInt(simpleDateFormat_local("MM").format(time));
}

static int localMonth() {
  return localMonth(now());
}
static int localDayOfMonth(long time) {
  return parseInt(simpleDateFormat_local("dd").format(time));
}

static int localDayOfMonth() {
  return localDayOfMonth(now());
}
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 boolean isLocalhost(String ip) {
  return isLoopbackIP(ip) || eqic(ip, "localhost");
}
static int vmPort() {
  return myVMPort();
}
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 int indexOfIgnoreCase_manual(String a, String b) {
  int la = l(a), lb = l(b);
  if (la < lb) return -1;
  int n = la-lb;
  
  loop: for (int i = 0; i <= n; i++) {
    for (int j = 0; j < lb; j++) {
      char c1 = a.charAt(i+j), c2 = b.charAt(j);
      if (!eqic(c1, c2))
        continue loop;
    }
    return i;
  }
  return -1;
}
public static String rtrim(String s) {
  if (s == null) return null;
  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 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 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 Object unstructure_startingAtIndex(String s, int i) {
  return unstructure_tok(javaTokC_noMLS_iterator(s, i), false, null);
}
// 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);
  }
}
static void consoleClearInput() {
  consoleSetInput("");
}


static boolean hasBot(String searchPattern) {
  DialogIO io = findBot(searchPattern);
  if (io != null) {
    io.close();
    return true;
  } else
    return false;
}
static String dropAfterSpace(String s) {
  return s == null ? null : substring(s, 0, smartIndexOf(s, ' '));
}
static boolean isOK(String s) {
  s = trim(s);
  return swic(s, "ok ") || eqic(s, "ok") || matchStart("ok", s);
}
static String sendOpt(String bot, String text, Object... args) {
  return sendToLocalBotOpt(bot, text, args);
}
static boolean isMainProgram() {
  return creator() == null;
}
static void cleanKill() {
  cleanKillVM();
}
static String actualUserHome_value;
static String actualUserHome() {
  if (actualUserHome_value == null) {
    if (isAndroid())
      actualUserHome_value = "/storage/sdcard0/";
    else
      actualUserHome_value = System.getProperty("user.home");
  }
  return actualUserHome_value;
}

static File actualUserHome(String sub) {
  return newFile(new File(actualUserHome()), sub);
}
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 List<String> db_standardExposedMethods_list = ll("xlist", "xnew", "xset", "xdelete", "xget", "xclass", "xfullgrab", "xshutdown", "xchangeCount", "xcount");

static List<String> db_standardExposedMethods() {
  return db_standardExposedMethods_list;
}
static boolean isLetter(char c) {
  return Character.isLetter(c);
}
static <A> A last(List<A> l) {
  return empty(l) ? 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 <A> A last(A[] a) {
  return l(a) != 0 ? a[l(a)-1] : null;
}

static <A> A last(Iterator<A> it) {
  A a = null;
  while  (it.hasNext()) { ping(); a = it.next(); }
  return a;
}
static String beautifyStructure(String s) {
  List<String> tok = javaTok(s);
  structure_addTokenMarkers(tok);
  jreplace(tok, "lhm", "");
  return join(tok);
}
static String struct_noStringSharing(Object o) {
  structure_Data d = new structure_Data();
  d.noStringSharing = true;
  return structure(o, d);
}
// This is a bit rough... finds static and non-static methods.

static Method findMethodNamed(Object obj, String method) {
  if (obj == null) return null;
  if (obj instanceof Class)
    return findMethodNamed((Class) obj, method);
  return findMethodNamed(obj.getClass(), method);
}

static Method findMethodNamed(Class c, String method) {
  while (c != null) {
    for (Method m : c.getDeclaredMethods())
      if (m.getName().equals(method)) {
        m.setAccessible(true);
        return m;
      }
    c = c.getSuperclass();
  }
  return null;
}
static void upgradeJavaXAndRestart() {
  
    run("#1001639");
    restart();
    sleep();
  
  
}
static boolean equalsIgnoreCase(String a, String b) {
  return eqic(a, b);
}

static boolean equalsIgnoreCase(char a, char b) {
  return eqic(a, b);
}
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) {
  n = Math.max(n, 0);
  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 SimpleDateFormat simpleDateFormat_local(String format) {
  SimpleDateFormat sdf = new SimpleDateFormat(format);
  sdf.setTimeZone(localTimeZone());
  return sdf;
}
// 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 boolean isLoopbackIP(String ip) {
  return eq(ip, "127.0.0.1");
}
static int myVMPort() {
  List records = (List) ( get(getJavaX(), "record_list"));
  Object android = records.get(records.size()-1);
  return (Integer) get(android, "port");
}
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 String sendToThisVM_newThread(String s, Object... args) {
  final String _s = format(s, args);
  try {
    return (String) evalInNewThread(new F0<Object>() { Object get() { try { 
      return callStaticAnswerMethod(getJavaX(), _s);
     } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret callStaticAnswerMethod(getJavaX(), _s);"; }});
  } catch (Throwable e) {
    e = getInnerException(e);
    printStackTrace(e);
    return str(e);
  }
}
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 void consoleSetInput(final String text) {
  
    if (headless()) return;
    setTextAndSelectAll(consoleInputField(), text);
    focusConsole();
  
}


static boolean matchStart(String pat, String s) {
  return matchStart(pat, s, null);
}

// matches are as you expect, plus an extra item for the rest string
static boolean matchStart(String pat, String s, Matches matches) {
  if (s == null) return false;
  return matchStart(pat, parse3_cachedInput(s), matches);
}
  
static boolean matchStart(String pat, List<String> toks, Matches matches) {
  if (toks == null) return false;
  List<String> tokpat = parse3_cachedPattern(pat);
  if (toks.size() < tokpat.size()) return false;
  String[] m = match2(tokpat, toks.subList(0, tokpat.size()));
  //print(structure(tokpat) + " on " + structure(toks) + " => " + structure(m));
  if (m == null) return false;
  if (matches != null) {
    matches.m = new String[m.length+1];
    arraycopy(m, matches.m);
    matches.m[m.length] = join(toks.subList(tokpat.size(), toks.size())); // for Matches.rest()
  }
  return true;
}
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();
  }
}
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 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(defaultBotName());
}
static String structure_addTokenMarkers(String s) {
  return join(structure_addTokenMarkers(javaTok(s)));
}
  
static List<String> structure_addTokenMarkers(List<String> tok) {
  // find references
  
  TreeSet<Integer> refs = new TreeSet();
  for (int i = 1; i < l(tok); i += 2) {
    String t = tok.get(i);
    if (t.startsWith("t") && isInteger(t.substring(1)))
      refs.add(parseInt(t.substring(1)));
  }
  
  if (empty(refs)) return tok;
  
  // add markers
  for (int i : refs) {
    int idx = i*2+1;
    String t = "";
    if (endsWithLetterOrDigit(tok.get(idx-1))) t = " ";
    tok.set(idx, t + "m" + i + " " + tok.get(idx));
  }
  
  return tok;
}
static String jreplace(String s, String in, String out) {
  return jreplace(s, in, out, null);
}

static String jreplace(String s, String in, String out, Object condition) {
  List<String> tok = javaTok(s);
  return jreplace(tok, in, out, condition) ? join(tok) : s;
}

// leaves tok properly tokenized
// returns true iff anything was replaced
static boolean jreplace(List<String> tok, String in, String out) {
  return jreplace(tok, in, out, false, true, null);
}

static boolean jreplace(List<String> tok, String in, String out, Object condition) {
  return jreplace(tok, in, out, false, true, condition);
}

static boolean jreplace(List<String> tok, String in, String out, boolean ignoreCase, boolean reTok, Object condition) {
  List<String> tokin = javaTok(in);
  jfind_preprocess(tokin);
  
  String[] toks = toStringArray(codeTokensOnly(tokin));

  boolean anyChange = false;
  for (int n = 0; n < 10000; n++) {
    int i = findCodeTokens(tok, 1, ignoreCase, toks, condition);
    if (i < 0)
      return anyChange;
    List<String> subList = tok.subList(i-1, i+l(tokin)-1); // N to N
    String expansion = jreplaceExpandRefs(out, subList);
    int end = i+l(tokin)-2;
    clearAllTokens(tok, i, end); // C to C
    tok.set(i, expansion);
    if (reTok) // would this ever be false??
      reTok(tok, i, end);
    anyChange = true;
  }
  throw fail("woot? 10000! " + quote(in) + " => " + quote(out));
}

static boolean jreplace_debug;
static Class run(String progID, String... args) {
  Class main = hotwire(progID);
  callMain(main, args);
  return main;
}
static TimeZone localTimeZone() {
  return getTimeZone(standardTimeZone());
  // TimeZone.getDefault()?
}
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 Object evalInNewThread(final Object f) {
  final Flag flag = new Flag();
  final Var var = new Var();
  final Var<Throwable> exception = new Var();
  startThread(new Runnable() {  public void run() { try {  
    try {
      var.set(callF(f));
    } catch (Throwable e) {
      exception.set(e);
    }
    flag.raise();
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "try {\r\n      var.set(callF(f));\r\n    } catch (Throwable e) {\r\n      exception..."; }});
  flag.waitUntilUp();
  if (exception.has()) throw rethrow(exception.get());
  return var.get();
}
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 boolean match3(String pat, String s) {
  return match3(pat, s, null);
}

static boolean match3(String pat, String s, Matches matches) {
  if (pat == null || s == null) return false;
  return match3(pat, parse3_cachedInput(s), matches);
}
  
static boolean match3(String pat, List<String> toks, Matches matches) {
  List<String> tokpat = parse3_cachedPattern(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 JTextField setTextAndSelectAll(final JTextField tf, final String text) {
  { swing(new Runnable() {  public void run() { try { 
    tf.setText(text);
    tf.selectAll();
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "tf.setText(text);\r\n    tf.selectAll();"; }}); }
  return tf;
}
static JTextField consoleInputField() {
  Object console = get(getJavaX(), "console");
  return (JTextField) getOpt(console, "tfInput");
}
static void focusConsole(String s) {
  setConsoleInput(s);
  focusConsole();
}

static void focusConsole() {
  JComponent tf = consoleInputFieldOrComboBox();
  if (tf != null) {
    //print("Focusing console");
    tf.requestFocus();
  }
}




static Map<String, List<String>> parse3_cachedInput_cache = synchronizedMRUCache(100);

static synchronized List<String> parse3_cachedInput(String s) {
  List<String> tok = parse3_cachedInput_cache.get(s);
  if (tok == null) parse3_cachedInput_cache.put(s, tok = parse3(s));
  return tok;
}




static Map<String, List<String>> parse3_cachedPattern_cache = synchronizedMRUCache(1000);

static synchronized List<String> parse3_cachedPattern(String s) {
  List<String> tok = parse3_cachedPattern_cache.get(s);
  if (tok == null) parse3_cachedPattern_cache.put(s, tok = parse3(s));
  return tok;
}


static void arraycopy(Object[] a, Object[] b) {
  int n = min(a.length, b.length);
  for (int i = 0; i < n; i++)
    b[i] = a[i];
}

static void arraycopy(Object src, int srcPos, Object dest, int destPos, int n) {
  System.arraycopy(src, srcPos, dest, destPos, n);
}
static String ok2(String s) {
  return "ok " + s;
}
// An "Android" is a program that accepts text questions (on console or TCP) and outputs one response text per question

//please include function myJavaSource. // for getting my known commands

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) { _handleException(__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 && (readLine_noReadLine || makeAndroid3_consoleInUse()))
    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.");
  startThread(new Runnable() {  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 (Exception __e) { throw rethrow(__e); } }  public String toString() { return "List<String> history = new ArrayList();\r\n    while (licensed()) {\r\n      Stri..."; }});
}

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() {
  if (isTrue(vm_generalMap_get("consoleInUse"))) return true;
  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 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 defaultBotName() {
  return getProgramTitle() + ".";
}
// "$1" is first code token, "$2" second code token etc.
static String jreplaceExpandRefs(String s, List<String> tokref) {
  List<String> tok = javaTok(s);
  for (int i = 1; i < l(tok); i += 2) {
    if (tok.get(i).startsWith("$") && isInteger(tok.get(i).substring(1))) {
      String x = tokref.get(-1+parseInt(tok.get(i).substring(1))*2);
      tok.set(i, x);
    }
  }
  return join(tok);
}

static TimeZone getTimeZone(String name) {
  return TimeZone.getTimeZone(name);
}
static String standardTimeZone_name = "Europe/Berlin";

static String standardTimeZone() {
  return standardTimeZone_name;
}
static String emptyToNull(String s) {
  return eq(s, "") ? null : s;
}

static <A, B> Map<A, B> emptyToNull(Map<A, B> map) {
  return empty(map) ? null : map;
}
static void setConsoleInput(String text) {
  consoleSetInput(text);
}
static JComponent consoleInputFieldOrComboBox() {
  Object console = get(getJavaX(), "console");
  JComboBox cb = (JComboBox) ( getOpt(console, "cbInput"));
  if (cb != null) return cb;
  return (JTextField) getOpt(console, "tfInput");
}


static List<String> parse3(String s) {
  return dropPunctuation(javaTokPlusPeriod(s));
}
static void removeFromMultiPort(long vport) {
  if (vport == 0) return;
  for (Object port : getMultiPorts())
    call(port, "removePort", vport);
}
static List<Object> record_list = synchroList();

static void record(Object o) {
  record_list.add(o);
}
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 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 {
              if (!io.noClose)
                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 boolean publicCommOn() {
  return "1".equals(loadTextFile(new File(userHome(), ".javax/public-communication")));
}
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(int n, Iterable<A> i) { return dropFirst(n, toList(i)); }
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 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 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 getInjectionID() {
  return (String) call(getJavaX(), "getInjectionID", getMainClass());
}
static Object callOptMC(String method, Object... args) {
  return callOpt(mc(), method, args);
}


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 List<Object> getMultiPorts() {
  return (List) callOpt(getJavaX(), "getMultiPorts");
}
// 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 <A> Set<A> synchroTreeSet() {
  return Collections.synchronizedSet(new TreeSet<A>());
}

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

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 <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 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 List<String> nlTok(String s) {
  return javaTokPlusPeriod(s);
}


static class Str extends Concept {
  String name;
  List<String> otherNames = new ArrayList();
  
  Str() {}
  Str(String name) {
  this.name = name;}
  
  public String toString() { return name; }
}static interface Producer<A> {
  public A next();
}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);
  }
}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)); }
}


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 String fsi(String id) {
  return formatSnippetID(id);
}

}