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 org.pushingpixels.substance.api.*;
import org.pushingpixels.substance.api.skin.*;
import javax.swing.event.AncestorListener;
import javax.swing.event.AncestorEvent;
import javax.swing.Timer;
import java.awt.datatransfer.StringSelection;
import javax.swing.Timer;
import java.awt.datatransfer.*;
import java.awt.dnd.*;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.UnsupportedFlavorException;
public class main {



///////////////////////////
// Your API to work with //
///////////////////////////

static interface GameForAI {
  List<Rect> submit(Pt point); // returns correct solution so AI can learn from it
}

abstract static class AI {
  // stuff you get
  
  GameForAI game;
  RGBImage image;
  int steps;
  boolean visualize = true;
  
  RGBImage image() { return image; }
  int w() { return image.w(); }
  int h() { return image.h(); }
  List<Rect> submit(Pt p) { return game.submit(p); }
  List<Rect> submit(Rect r) { return submit(middleOfRect(r)); }
  List<Rect> submitNothing() { return game.submit(null); }

  // implement this method and call submit()
  abstract void go();
  
  void done() {}

  Rect leftRect() { return main.leftRect(image); }
  Rect rightRect() { return main.rightRect(image); }
  List<Rect> clickLeft() { return submit(leftRect()); }
  List<Rect> clickRight() { return submit(rightRect()); }
  List<Rect> clickLeftIf(boolean b) { return b ? clickLeft() : clickRight(); }
  List<Rect> clickRightIf(boolean b) { return b ? clickRight() : clickLeft(); }
  RGBImage leftImage() { return image.clip(leftRect()); }
  RGBImage rightImage() { return image.clip(rightRect()); }

}

///////////////
// Main Game //
///////////////

static int w = 150, h = 150;
static int rounds = 1000;
static boolean alwaysNewImage = true; // prevents AIs being stuck on an image
static double imageZoom = 2;
static int fps = 50;
static boolean showBlunderWindow;
static String nonClickName = null;

static int points, clicks, halfTime;
static ImageSurface is, isWrong;
static long isWrongLast;
static RGBImage img;
static HashMap<Rect,Integer> words = new HashMap();
static List<Rect> solution;
volatile static boolean aiMode;
static JLabel lblScore, lblTiming, lblInstruction;
static HashMap<Class,AI> ais = new HashMap();
static String winner;

static void pGame() {
  substance();
  { swingAndWait(new Runnable() { public void run() { try { 
    { Thread _t_0 = new Thread() {
public void run() { try { /* pcall 1*/  loadBinarySnippet("#1004373"); /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); } }
};
_t_0.start(); } // preload applause animation
    lblInstruction = jcenteredBoldLabel();
    nextImage();
    addToWindowTop(is, withMargin(lblInstruction));
    if (nempty(nonClickName))
      addToWindow(is, withTopMargin(jCenteredLine(jbutton(nonClickName, new Runnable() { public void run() { try { 
        userClicked(null)
      ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "userClicked(null)"; }}))));
    addToWindow(is, withMargin(lblScore = jcenteredBoldLabel("Your score: 0 of 0")));
    for (final Class c : myNonAbstractClassesImplementing(AI.class)) {
      final String name = shortClassName(c);
      final JButton btn = jbutton(name);
      onClick(btn, new Runnable() { public void run() { try { 
        if (aiMode) return;
        btn.setText(name + " Running...");
        { Thread _t_1 = new Thread() {
public void run() { try { /* pcall 1*/ 
          Game game = testAI(c, new Object() { void get(Game game) { try {
  
            if (game.step < 50 || (game.step % 10) == 0 || game.step == rounds) {
              String text = name + " scored " + game.points + " of " + game.step;
              if (game.step > halfTime)
                text += " (" + (game.points-game.halfTimeScore) + "/" + (game.step-halfTime) + ")";
              if (game.error != null)
                text += " - ERROR: " + game.error;
              setText_noWait(btn, text);
            }
           
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "if (game.step < 50 || (game.step % 10) == 0 || game.step == rounds) {\r\n              S text = name + \" scored \" + game.points + \" of \" + game.step;\r\n              if (game.step > halfTime)\r\n                text += \" (\" + (game.points-game.halfTimeScore) + \"/\" + (game.step-halfTime) + \")\";\r\n              if (game.error != null)\r\n                text += \" - ERROR: \" + game.error;\r\n              setText_noWait(btn, text);\r\n            }"; }});
        /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); } }
};
_t_1.start(); }
      
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "if (aiMode) return;\r\n        btn.setText(name + \" Running...\");\r\n        thread {\r\n          Game game = testAI(c, new Object { void get(Game game) { try {\n  \r\n            if (game.step < 50 || (game.step % 10) == 0 || game.step == rounds) {\r\n              String text = name + \" scored \" + game.points + \" of \" + game.step;\r\n              if (game.step > halfTime)\r\n                text += \" (\" + (game.points-game.halfTimeScore) + \"/\" + (game.step-halfTime) + \")\";\r\n              if (game.error != null)\r\n                text += \" - ERROR: \" + game.error;\r\n              setText_noWait(btn, text);\r\n            }\r\n           \n} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}\n  public String toString() { return \"if (game.step < 50 || (game.step % 10) == 0 || game.step == rounds) {\\r\\n              S text = name + \\\" scored \\\" + game.points + \\\" of \\\" + game.step;\\r\\n              if (game.step > halfTime)\\r\\n                text += \\\" (\\\" + (game.points-game.halfTimeScore) + \\\"/\\\" + (game.step-halfTime) + \\\")\\\";\\r\\n              if (game.error != null)\\r\\n                text += \\\" - ERROR: \\\" + game.error;\\r\\n              setText_noWait(btn, text);\\r\\n            }\"; }});\r\n        }"; }});
      addToWindow(is, withMargin(btn));
    }
    addToWindow(is, lblTiming = jCenteredLabel());
    titlePopupMenuItem(is, "Show Winner Code", "showWinnerCode");
    titlePopupMenuItem(is, "Restart AIs", new Runnable() { public void run() { try {  clearMapWithCleanUp(ais); 
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "clearMapWithCleanUp(ais);"; }});
    titlePopupMenuItem(is, jCheckBoxMenuItem("Show Blunder Window", showBlunderWindow, new Runnable() { public void run() { try {  showBlunderWindow = !showBlunderWindow; 
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "showBlunderWindow = !showBlunderWindow;"; }}));
    addToWindow(is, withMargin(jbutton("Restart AIs", new Runnable() { public void run() { try {  clearMapWithCleanUp(ais); 
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "clearMapWithCleanUp(ais);"; }})));
    
    packFrame(is);
    setFrameWidth(is, 400);
    centerTopFrame(is);
    hideConsole();
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "thread { loadBinarySnippet(\"#1004373\"); } // preload applause animation\r\n    lblInstruction = jcenteredBoldLabel();\r\n    nextImage();\r\n    addToWindowTop(is, withMargin(lblInstruction));\r\n    if (nempty(nonClickName))\r\n      addToWindow(is, withTopMargin(jCenteredLine(jbutton(nonClickName, r {\r\n        userClicked(null)\r\n      }))));\r\n    addToWindow(is, withMargin(lblScore = jcenteredBoldLabel(\"Your score: 0 of 0\")));\r\n    for (final Class c : myNonAbstractClassesImplementing(AI.class)) {\r\n      final String name = shortClassName(c);\r\n      final JButton btn = jbutton(name);\r\n      onClick(btn, r {\r\n        if (aiMode) return;\r\n        btn.setText(name + \" Running...\");\r\n        thread {\r\n          Game game = testAI(c, new Object { void get(Game game) { try {\n  \r\n            if (game.step < 50 || (game.step % 10) == 0 || game.step == rounds) {\r\n              String text = name + \" scored \" + game.points + \" of \" + game.step;\r\n              if (game.step > halfTime)\r\n                text += \" (\" + (game.points-game.halfTimeScore) + \"/\" + (game.step-halfTime) + \")\";\r\n              if (game.error != null)\r\n                text += \" - ERROR: \" + game.error;\r\n              setText_noWait(btn, text);\r\n            }\r\n           \n} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}\n  public String toString() { return \"if (game.step < 50 || (game.step % 10) == 0 || game.step == rounds) {\\r\\n              S text = name + \\\" scored \\\" + game.points + \\\" of \\\" + game.step;\\r\\n              if (game.step > halfTime)\\r\\n                text += \\\" (\\\" + (game.points-game.halfTimeScore) + \\\"/\\\" + (game.step-halfTime) + \\\")\\\";\\r\\n              if (game.error != null)\\r\\n                text += \\\" - ERROR: \\\" + game.error;\\r\\n              setText_noWait(btn, text);\\r\\n            }\"; }});\r\n        }\r\n      });\r\n      addToWindow(is, withMargin(btn));\r\n    }\r\n    addToWindow(is, lblTiming = jCenteredLabel());\r\n    titlePopupMenuItem(is, \"Show Winner Code\", f showWinnerCode);\r\n    titlePopupMenuItem(is, \"Restart AIs\", r { clearMapWithCleanUp(ais); });\r\n    titlePopupMenuItem(is, jCheckBoxMenuItem(\"Show Blunder Window\", showBlunderWindow, r { showBlunderWindow = !showBlunderWindow; }));\r\n    addToWindow(is, withMargin(jbutton(\"Restart AIs\", r { clearMapWithCleanUp(ais); })));\r\n    \r\n    packFrame(is);\r\n    setFrameWidth(is, 400);\r\n    centerTopFrame(is);\r\n    hideConsole();"; }}); }
}

static class Puzzle {
  String instruction, nonClickName;
  RGBImage image;
  List<Rect> solution;
  
  Puzzle() {}
  Puzzle(String instruction, BufferedImage image, List<Rect> solution) {
  this.solution = solution;
  this.instruction = instruction;
    this.image = new RGBImage(image);
  }
  Puzzle(String instruction, RGBImage image, List<Rect> solution) {
  this.solution = solution;
  this.image = image;
  this.instruction = instruction;}
  Puzzle(String instruction, String nonClickName, RGBImage image, List<Rect> solution) {
  this.solution = solution;
  this.image = image;
  this.nonClickName = nonClickName;
  this.instruction = instruction;}
}

static void nextImage() {
  Puzzle puzzle = makePuzzle();
  setText(lblInstruction, or2(puzzle.instruction, "?"));
  assertNotNull("Image is null", puzzle.image);
  main.img = puzzle.image;
  solution = puzzle.solution;
  nonClickName = puzzle.nonClickName;
  if (aiMode) return; // occasional updates only when AI is running
  showTheImage();
}

static void showTheImage() {
  boolean first = is == null;
  is = showZoomedImage_centered(is, img, imageZoom);
  if (first) {
    onLeftClick(is, new Object() { void get(Pt p) { try {
   userClicked(p) ; 
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "userClicked(p)"; }});
    disableImageSurfaceSelector(is);
    
    // animate if idle
    awtEvery(is, 1000, new Runnable() { public void run() { try { 
      if (!aiMode && isInForeground(is) && !mouseInFrame(is))
        nextImage();
    
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "if (!aiMode && isInForeground(is) && !mouseInFrame(is))\r\n        nextImage();"; }});
    
    // show current image occasionally when AI is running
    awtEvery(is, 1000/fps, new Runnable() { public void run() { try { 
      if (aiMode) showTheImage();
    
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "if (aiMode) showTheImage();"; }});
  }
}

// AI stuff

static class Game implements GameForAI {
  int points, step, halfTimeScore;
  Pt submitted;
  Throwable error;
  
  public List<Rect> submit(Pt p) {
    if (submitted != null) throw fail("No multi-submit please");
    submitted = p == null ? nonPoint() : p;
    boolean correct = empty(solution) ? p == null
      : p != null && anyRectContains(solution, p);
    // print("p=" + p + ", solution=" + solution + ", correct=" + correct);
    if (correct) {
      ++points;
      if (!alwaysNewImage) nextImage();
    }
    return solution;
  }
}

static Game scoreAI(final AI ai, Object onScore) {
  aiMode = true;
  final long start = sysNow();
  try {
    final Game game = new Game();
    setOpt(ai, "game", game);
    halfTime = rounds/2;
    while (game.step < rounds) {
      if (game.step == halfTime) game.halfTimeScore = game.points;
      ++game.step;
      ++ai.steps;
      game.submitted = null;
      int points = game.points;
      RGBImage image = img;
      try {
        setOpt(ai, "image", image);
        ai.go();
      } catch (Throwable e) {
        if (game.error == null) { // print first error to console
          showConsole();
          printStackTrace(e);
        }
        game.error = e;
      } finally {
        setOpt(ai, "image" , null);
      }
      if (showBlunderWindow && points == game.points && hasElapsed(isWrongLast, 50)) {
        isWrongLast = sysNow();
        boolean first = isWrong == null;
        String guess = ""; // game.submitted == null ? "no click" : game.submitted.x + "/" + game.submitted.y;
        isWrong = showImage(isWrong, "Last Blunder" + (nempty(guess) ? " (" + guess + ")" : ""), rgbMarkPoint(rgbClone(image), game.submitted, Color.red, 3));
        if (first) {
          setFrameWidth(isWrong, 230);
          moveToTopRightCorner(isWrong);
          moveFrameDown(isWrong, 100);
        }
      }
      pcallF(onScore, game);
      if (alwaysNewImage) nextImage();
    }
    print("AI " + shortClassName(ai) + " points after " + rounds + " rounds: " + game.points);
    ai.done();
    // We consider the game solved when an AI scores 100% in second half
    if (game.points-game.halfTimeScore >= rounds-halfTime) { Thread _t_2 = new Thread() {
public void run() { try { /* pcall 1*/ 
      titleStatus(is, "Solved!");
      showAnimationInTopLeftCorner("#1004373", game.points + " of " + rounds + " points!!", 3.0);
      winner = structure(ai);
      save("winner");
    /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); } }
};
_t_2.start(); }
    return game;
  } finally {
    aiMode = false;
    swingLater(new Runnable() { public void run() { try { 
      lblTiming.setText(formatDouble(toSeconds(sysNow()-start), 1) + " s");
      nextImage();
    
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "lblTiming.setText(formatDouble(toSeconds(sysNow()-start), 1) + \" s\");\r\n      nextImage();"; }});
  }
}

static AI getAI(Class<? extends AI> c) {
  AI ai = ais.get(c);
  if (ai == null) ais.put(c, ai = nu(c));
  return ai;
}

// onScore: voidfunc(Game)
static Game testAI(Class<? extends AI> c, Object onScore) {
  return scoreAI(getAI(c), onScore);
}

static void userClicked(Pt p) {
  ++clicks;
  boolean correct = empty(solution) ? p == null
    : p != null && anyRectContains(solution, is.pointFromComponentCoordinates(p));
  if (correct) {
    ++points;
    nextImage();
  } else if (alwaysNewImage) nextImage();
  lblScore.setText(print("Your score: " + points + " of " + clicks));
}

static void showWinnerCode() {
  if (winner == null) load("winner");
  if (winner == null) messageBox("No winner yet");
  else showWrappedText("Winner Code - " + programTitle(), winner);
}
static int spacing = 10; // space between the two images

public static void main(final String[] args) throws Exception {
  w = h = 150;
  imageZoom = 1;
  pGame();
}

static int singleImageWidth(RGBImage img) { return (img.w()-spacing)/2; }

static Rect leftRect(RGBImage img) {
  int iw = singleImageWidth(img);
  return new Rect(0, 0, iw, h);
}

static Rect rightRect(RGBImage img) {
  int iw = singleImageWidth(img);
  return new Rect(iw+spacing, 0, iw, h);
}

//////////////////////////////////////
// Test AIs. Just add your own here //
//////////////////////////////////////

static class ClickOnBrighterImage extends AI {
  void go() {
    clickLeftIf(rgbAverageBrightness(leftImage()) > rgbAverageBrightness(rightImage()));
  }
}

//////////////////
// PUZZLE MAKER //
//////////////////

static Puzzle makePuzzle() {
  String instruction = "Click on the brighter image";
  RGBImage img = rgbImage(0xeef3e6, w*2+spacing, h);
  double l = random(10)/10.0, r = random(10)/10.0;
  Rect lr = leftRect(img), rr = rightRect(img);
  rgbFill(img, lr, new RGB(l));
  rgbFill(img, rr, new RGB(r));
  List<Rect> solution = l > r ? ll(lr) : l == r ? ll(lr, rr) : ll(rr);
  return new Puzzle(instruction, img, solution);
}

static <A> List<A> ll(A... a) {
  return litlist(a);
}
static void onClick(JComponent c, final Object runnable) {
  c.addMouseListener(new MouseAdapter() {
    public void mouseClicked(MouseEvent e) {
      callF(runnable, e);
    }
  });
}

// re-interpreted for buttons
static void onClick(JButton btn, final Object runnable) {
  onEnter(btn, runnable);
}
static Object pcallF(Object f, Object... args) {
  return pcallFunction(f, args);
}
static JLabel jCenteredLabel(String text) {
  return jcenteredLabel(text);
}

static JLabel jCenteredLabel() {
  return jcenteredLabel();
}
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 Object() { Object get() { try {
  
    ImageSurface is = showImage(img);
    getFrame(is).setTitle(title);
    return is;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "ImageSurface is = showImage(img);\r\n    getFrame(is).setTitle(title);\r\n    return is;"; }});
}

static ImageSurface showImage(final BufferedImage img) {
  return (ImageSurface) swing(new Object() { Object get() { try {
  
    ImageSurface is = new ImageSurface(img);
    JFrame frame = showPackedFrame(new JScrollPane(is));
    moveToTopRightCorner(frame);
    frameIcon(frame, showImage_defaultIcon);
    return is;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "ImageSurface is = new ImageSurface(img);\r\n    JFrame frame = showPackedFrame(new JScrollPane(is));\r\n    moveToTopRightCorner(frame);\r\n    frameIcon(frame, showImage_defaultIcon);\r\n    return is;"; }});
}

static ImageSurface showImage(String imageID) {
  return showImage(loadImage(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, RGBImage 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(BWImage img) {
    return showImage(img.getBufferedImage());
  }



  static ImageSurface showImage(Image2B img) {
    return showImage(img.getBufferedImage());
  }

static boolean empty(Collection c) {
  return isEmpty(c);
}

static boolean empty(String s) {
  return isEmpty(s);
}

static boolean empty(Map map) {
  return map == null || map.isEmpty();
}

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

static boolean empty(Object o) {
  if (o instanceof Collection) return empty((Collection) o);
  if (o instanceof String) return empty((String) o);
  if (o instanceof Map) return empty((Map) o);
  if (o instanceof Object[]) return empty((Object[]) o);
  throw fail("unknown type for 'empty': " + getType(o));
}

static boolean empty(float[] a) { return a == null || a.length == 0; }
static JCheckBoxMenuItem jCheckBoxMenuItem(String text, boolean checked, final Object r) {
  JCheckBoxMenuItem mi = new JCheckBoxMenuItem(text, checked);
  mi.addActionListener(actionListener(r));
  return mi;
}
static Pt middleOfRect(Rect r) {
  return centerOfRect(r);
}
static <A extends Component> A setFrameWidth(A c, int w) {
  JFrame f = getFrame(c);
  if (f != null)
    f.setSize(w, f.getHeight());
  return c;
}
static RGBImage rgbClone(RGBImage img) {
  return new RGBImage(img);
}
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 JWindow showAnimationInTopLeftCorner(final String imageID, final String text, double seconds) {
  JWindow w = showAnim(imageID, text, seconds);
  moveToTopLeftCorner(w);
  return w;
}

static void disableImageSurfaceSelector(ImageSurface is) {
  ImageSurfaceSelector s = firstInstance(is.tools, ImageSurfaceSelector.class);
  if (s == null) return;
  is.removeMouseListener(s);
  is.removeMouseMotionListener(s);
  is.tools.add(s);
}

static int withMargin_defaultWidth = 6;

static JPanel withMargin(Component c) {
  JPanel p = new JPanel(new BorderLayout());
  int w = withMargin_defaultWidth;
  p.setBorder(BorderFactory.createEmptyBorder(w, w, w, w));
  p.add(c);
  return p;
}
static void titleStatus(Component c, String status) {
  if (getFrame(c) == null) return;
  String s = getFrameTitle(c);
  String sep = " - ";
  setFrameTitle(c, replaceLeader(status, sep, s));
}
static void printStackTrace(Throwable e) {
  // we go to system.out now - system.err is nonsense
  print(getStackTrace(e));
}

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

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

static void printStackTrace(String indent, Throwable e) {
  if (endsWithLetter(indent)) indent += " ";
  printIndent(indent, getStackTrace(e));
}
static int packFrame_minw = 150, packFrame_minh = 50;

static JFrame packFrame(final Component c) {
  return (JFrame) swing(new Object() { Object get() { try {
  
    JFrame frame = getFrame(c);
    if (frame == null) return null;
    frame.pack();
    int maxW = getScreenWidth()-50, maxH = getScreenHeight()-50;
    frame.setSize(
      min(maxW, max(frame.getWidth(), packFrame_minw)),
      min(maxH, max(frame.getHeight(), packFrame_minh)));
    return frame;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "JFrame frame = getFrame(c);\r\n    if (frame == null) null;\r\n    frame.pack();\r\n    int maxW = getScreenWidth()-50, maxH = getScreenHeight()-50;\r\n    frame.setSize(\r\n      min(maxW, max(frame.getWidth(), packFrame_minw)),\r\n      min(maxH, max(frame.getHeight(), packFrame_minh)));\r\n    ret frame;"; }});
}

static JFrame packFrame(ButtonGroup g) {
  return packFrame(getFrame(g));
}
static Pt nonPoint() {
  return new Pt(-9, -9);
}
static JButton jbutton(String text, Object action) {
  return newButton(text, action);
}

// button without action
static JButton jbutton(String text) {
  return newButton(text, null);
}
static RGBImage rgbMarkPoint(RGBImage img, Pt p, Color color, int size) {
  if (img != null &&p != null)
    rgbFillRect(img, p.x-size/2, p.y-size/2, size, size, color);
  return img;
}

static RGBImage rgbMarkPoint(RGBImage img, Pt p) {
  return rgbMarkPoint(img, p, Color.red, 3);
}

static RGBImage rgbMarkPoint(RGBImage img, int x, int y) {
  return rgbMarkPoint(img, new Pt(x, y));
}
static void addToWindowTop(Component c, Component toAdd) {
  JFrame frame = getFrame(c);
  Container cp = frame.getContentPane();
  setContentPane(frame, northAndCenter(toAdd, cp));
}
static String or2(String a, String b) {
  return nempty(a) ? a : b;
}
  static RuntimeException fail() {
    throw new RuntimeException("fail");
  }
  
  static RuntimeException fail(Object msg) {
    throw new RuntimeException(String.valueOf(msg));
  }
  
  static RuntimeException fail(String msg) {
    throw new RuntimeException(unnull(msg));
  }
   
  static RuntimeException fail(String msg, Throwable innerException) {
    throw new RuntimeException(msg, innerException);
  }
  
  // disabled for now to shorten some programs 
  /*static RuntimeException fail(S msg, O... args) {
    throw new RuntimeException(format(msg, args));
  }*/
static JPanel jCenteredLine(Component... components) {
  return jcenteredline(components);
}

static JPanel jCenteredLine(List<Component> components) {
  return jcenteredline(components);
}
static void addToWindow(Component c, Component toAdd) {
  if (toAdd == null) return;
  JFrame frame = getFrame(c);
  Container cp = frame.getContentPane();

  JPanel newCP = new JPanel();
  newCP.setLayout(new BorderLayout());
  newCP.add(BorderLayout.CENTER, cp);
  newCP.add(BorderLayout.SOUTH, toAdd);
  
  frame.setContentPane(newCP);
  
  // magic combo to actually relayout and repaint
  frame.revalidate();
  frame.repaint();
}
// action: voidfunc(int row)
static void titlePopupMenuItem(Component c, final String name, final Object action) {
  titlePopupMenu(c, new Object() { void get(JPopupMenu menu) { try {
  
    addMenuItem(menu, name, action);
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "addMenuItem(menu, name, action);"; }});
}

static void titlePopupMenuItem(Component c, final JMenuItem menuItem) {
  titlePopupMenu(c, new Object() { void get(JPopupMenu menu) { try {
  
    addMenuItem(menu, menuItem);
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "addMenuItem(menu, menuItem);"; }});
}
static void setText_noWait(JTextComponent c, Object text) {
  setText_noWait((Object) c, text);
}

static void setText_noWait(JLabel c, Object text) {
  setText_noWait((Object) c, text);
}

static void setText_noWait(JButton c, Object text) {
  setText_noWait((Object) c, text);
}

static void setText_noWait(final Object c, Object text) {
  final String s = str(text);
  swingNowOrLater(new Runnable() { public void run() { try {  call(c, "setText", s); 
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "call(c, \"setText\", s);"; }});
}
static File loadBinarySnippet(String snippetID) { try {
 
  long id = parseSnippetID(snippetID);
  File f = DiskSnippetCache_getLibrary(id);
  if (f == null) {
    byte[] data = loadDataSnippetImpl(snippetID);
    DiskSnippetCache_putLibrary(id, data);
    f = DiskSnippetCache_getLibrary(id);
  }
  return f;

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
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 __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "frame.setVisible(false);"; }});
  }
}
static JTextArea showWrappedText(final String title, final String text) {
  return (JTextArea) swingAndWait(new Object() { Object get() { try {
  
    JTextArea textArea = wrappedTextArea(text);
    textArea.setFont(typeWriterFont());
    makeFrame(title, new JScrollPane(textArea));
    return textArea;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "JTextArea textArea = wrappedTextArea(text);\r\n    textArea.setFont(typeWriterFont());\r\n    makeFrame(title, new JScrollPane(textArea));\r\n    ret textArea;"; }});
}

static JTextArea showWrappedText(Object text) {
  return showWrappedText(autoFrameTitle(), str(text));
}
static boolean mouseInFrame(Component c) {
  return mouseInWindow(c);
}
static void rgbFill(RGBImage img, int x1, int y1, int w, int h, int color) {
  for (int y = 0; y < h; y++) for (int x = 0; x < w; x++) img.setPixel(x1+x, y1+y, color);
}

static void rgbFill(RGBImage img, Rect r, RGB color) {
  rgbFill(img, r.x, r.y, r.w, r.h, color.getInt());
}

static int withTopMargin_defaultWidth = 6;

static JPanel withTopMargin(Component c) {
  JPanel p = new JPanel(new BorderLayout());
  int w = withTopMargin_defaultWidth;
  p.setBorder(BorderFactory.createEmptyBorder(w, 0, 0, 0));
  p.add(c);
  return p;
}
static void showConsole() {
  showFrame(consoleFrame());
}
static void moveFrameDown(Component c, int y) {
  moveDown(getFrame(c), y);
}

static void moveFrameDown(int y, Component c) {
  moveFrameDown(c, y);
}

static <A> A nu(Class<A> c, Object... values) {
  A a = nuObject(c);
  setOptAll(a, values);
  return a;
}
static boolean isInForeground(Component c) {
  JFrame f = getFrame(c);
  return f != null && (f.isFocused() || f.isAlwaysOnTop());
}
static void save(String varName) {
  saveLocally(varName);
}

static void save(String progID, String varName) {
  saveLocally(progID, varName);
}
static int centerTopFrame_inset = 20;

static JFrame centerTopFrame(Component c) {
  JFrame f = getFrame(c);
  if (f == null) return null;
  centerFrame(f);
  f.setLocation(f.getLocation().x, centerTopFrame_inset);
  return f;
}
static double toSeconds(long ms) {
  return ms/1000.0;
}
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 void onLeftClick(JComponent c, final Object runnable) {
  c.addMouseListener(new MouseAdapter() {
    public void mouseClicked(MouseEvent e) {
      callF(runnable, new Pt(e.getPoint()));
    }
  });
}
static long sysNow() {
  return System.nanoTime()/1000000;
}
static boolean hasElapsed(long time, long interval) {
  return sysNow() >= time+interval;
}

static void load(String varName) {
  readLocally(varName);
}

static void load(String progID, String varName) {
  readLocally(progID, varName);
}
static RGBImage rgbImage(Color color, int w, int h) {
  return new RGBImage(w, h, color);
}

static RGBImage rgbImage(int color, int w, int h) {
  return new RGBImage(w, h, new RGB(color));
}
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 boolean anyRectContains(List<Rect> l, Pt p) {
  return containsPoint(l, p);
}
  public static String formatDouble(double d, int digits) {
    String format = "0.";
    for (int i = 0; i < digits; i++) format += "#";
    return new java.text.DecimalFormat(format, new java.text.DecimalFormatSymbols(Locale.ENGLISH)).format(d);
  }

static void substance() {
  substanceLAF();
}

static void substance(String skinName) {
  substanceLAF(skinName);
}
static boolean nempty(Collection c) {
  return !isEmpty(c);
}

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

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

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

static boolean nempty(Iterator i) {
  return i != null && i.hasNext();
}
static <A> List<Class<? extends A>> myNonAbstractClassesImplementing(Class<A> base) {
  List<Class<? extends A>> l = new ArrayList();
  for (String name : myInnerClasses()) {
    Class c = _getClass("main$" + name);
    if (c != null && !isAbstract(c) && isSubtypeOf(c, base))
      l.add(c);
  }
  return l;
}
static boolean structure_showTiming, structure_checkTokenCount;

static String structure(Object o) {
  structure_Data d = new structure_Data();
  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 int structure_shareStringsLongerThan = 20;

static class structure_Data {
  PrintWriter out;
  int stringSizeLimit;
  IdentityHashMap<Object,Integer> seen = new IdentityHashMap();
  BitSet refd = new BitSet();
  HashMap<String,Integer> strings = new HashMap();
  HashSet<String> concepts = new HashSet();
  HashMap<Class, List<Field>> fieldsByClass = new HashMap();
  Class conceptClass = findClass("Concept");
  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) {
  final PrintWriter out = d.out;
  
  if (o == null) { d.append("null"); return; }
  
  Class c = o.getClass();
  String name = c.getName();
  String dynName = shortDynamicClassName(o);
  boolean concept = d.conceptClass != null && d.conceptClass.isInstance(o);
  List<Field> lFields = d.fieldsByClass.get(c);
  
  if (lFields == null) {
    // these are never back-referenced (for readability)
    
    if (o instanceof Number) {
      if (o instanceof Integer) { int i = ((Integer) o).intValue(); out.print(i); d.n += i < 0 ? 2 : 1; return; }
      if (o instanceof Long) { long l = ((Long) o).longValue(); out.print(l); out.print("L"); d.n += l < 0 ? 2 : 1; return; }
      if (o instanceof Float) { d.append("fl ", 2); quoteToPrintWriter(str(o), out); return; }
      if (o instanceof Double) { d.append("d(", 3); quoteToPrintWriter(str(o), out); d.append(")"); return; }
      if (o instanceof BigInteger) { out.print("bigint("); out.print(o); out.print(")"); d.n += ((BigInteger) o).signum() < 0 ? 5 : 4; return; }
    }
  
    if (o instanceof Boolean) {
      d.append(((Boolean) o).booleanValue() ? "t" : "f"); return;
    }
      
    if (o instanceof Character) {
      d.append(quoteCharacter((Character) o)); return;
    }
      
    if (o instanceof File) {
      d.append("File ").append(quote(((File) o).getPath())); return;
    }
      
    // referencable objects follow
    
    Integer ref = d.seen.get(o);
    if (o instanceof String && ref == null)
      ref = d.strings.get((String) o);
      
    if (ref != null) {
      d.refd.set(ref);
      d.append("t").app(ref); return;
    }
    
    ref = d.n; //d.seen.size()+1;
    d.seen.put(o, ref);
    //d.append("m").app(ref).app(" "); // marker
    
    if (o instanceof String) {
      String s = d.stringSizeLimit != 0 ? shorten((String) o, d.stringSizeLimit) : (String) o;
      if (l(s) >= structure_shareStringsLongerThan)
        d.strings.put(s, ref);
      quoteToPrintWriter(s, out); d.n++; return;
    }
      
    if (o instanceof HashSet) {
      d.append("hashset ");
      structure_1(new ArrayList((Set) o), d);
      return;
    }
  
    if (o instanceof TreeSet) {
      d.append("treeset ");
      structure_1(new ArrayList((Set) o), d);
      return;
    }
    
    if (o instanceof Collection && neq(name, "main$Concept$RefL")) {
      d.append("[");
      final int l = d.n;
      final Iterator it = ((Collection) o).iterator();
      d.stack.add(new Runnable() { public void run() { try { 
        if (!it.hasNext())
          d.append("]");
        else {
          d.stack.add(this);
          if (d.n != l) d.append(", ");
          structure_1(it.next(), d);
        }
      
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "if (!it.hasNext())\r\n          d.append(\"]\");\r\n        else {\r\n          d.stack.add(this);\r\n          if (d.n != l) d.append(\", \");\r\n          structure_1(it.next(), d);\r\n        }"; }});
      return;
    }
    
    if (o instanceof Map) {
      if (o instanceof LinkedHashMap) d.append("lhm");
      else if (o instanceof HashMap) d.append("hm");
      d.append("{");
      final int l = d.n;
      final Iterator it = ((Map) o).entrySet().iterator();
      
      d.stack.add(new Runnable() {
        boolean v;
        Map.Entry e;
        
        public void run() {
          if (v) {
            d.append("=");
            v = false;
            d.stack.add(this);
            structure_1(e.getValue(), d);
          } else {
            if (!it.hasNext())
              d.append("}");
            else {
              e = (Map.Entry) it.next();
              v = true;
              d.stack.add(this);
              if (d.n != l) d.append(", ");
              structure_1(e.getKey(), d);
            }
          }
        }
      });
      return;
    }
    
    if (c.isArray()) {
      if (o instanceof byte[]) {
        d.append("ba ").append(quote(bytesToHex((byte[]) o))); return;
      }
  
      final int n = Array.getLength(o);
  
      if (o instanceof boolean[]) {
        String hex = boolArrayToHex((boolean[]) o);
        int i = l(hex);
        while (i > 0 && hex.charAt(i-1) == '0' && hex.charAt(i-2) == '0') i -= 2;
        d.append("boolarray ").append(n).app(" ").append(quote(substring(hex, 0, i))); return;
      }
      
      String atype = "array", sep = ", ";
  
      if (o instanceof int[]) {
        //ret "intarray " + quote(intArrayToHex((int[]) o));
        atype = "intarray";
        sep = " ";
      }
      
      d.append(atype).append("{");
      d.stack.add(new Runnable() {
        int i;
        public void run() {
          if (i >= n)
            d.append("}");
          else {
            d.stack.add(this);
            if (i > 0) d.append(", ");
            structure_1(Array.get(o, i++), d);
          }
        }
      });
      return;
    }
  
    if (o instanceof Class) {
      d.append("class(", 2).append(quote(((Class) o).getName())).append(")"); return;
    }
      
    if (o instanceof Throwable) {
      d.append("exception(", 2).append(quote(((Throwable) o).getMessage())).append(")"); return;
    }
      
    if (o instanceof BitSet) {
      BitSet bs = (BitSet) o;
      d.append("bitset{", 2);
      int l = d.n;
      for (int i = bs.nextSetBit(0); i >= 0; i = bs.nextSetBit(i+1)) {
        if (d.n != l) d.append(", ");
        d.append(i);
      }
      d.append("}"); return;
    }
      
    // Need more cases? This should cover all library classes...
    if (name.startsWith("java.") || name.startsWith("javax.")) {
      d.append("j ").append(quote(str(o))); return; // Hm. this is not unstructure-able
    }
      
    /*if (name.equals("main$Lisp")) {
      fail("lisp not supported right now");
    }*/
    
    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());
      }
    });
    
    while (c != Object.class) {
      for (Field field : getDeclaredFields_cached(c)) {
        if ((field.getModifiers() & (Modifier.STATIC | Modifier.TRANSIENT)) != 0)
          continue;
        String fieldName = field.getName();
        
        fields.add(field);
        
        // put special cases here...
      }
        
      c = c.getSuperclass();
    }
    
    lFields = asList(fields);
    
    // Render this$1 first because unstructure needs it for constructor call.
    
    for (int i = 0; i < l(lFields); i++) {
      Field f = lFields.get(i);
      if (f.getName().equals("this$1")) {
        lFields.remove(i);
        lFields.add(0, f);
        break;
      }
    }
  
    d.fieldsByClass.put(c, lFields);
  }

  LinkedHashMap<String,Object> fv = new LinkedHashMap();
  for (Field f : lFields) {
    Object value;
    try {
      value = f.get(o);
    } catch (Exception e) {
      value = "?";
    }
      
    if (value != null)
      fv.put(f.getName(), value);
  }
  
  String 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 = dynName;
    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 __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "if (!it.hasNext()) {\r\n      if (d.n != l)\r\n        d.append(\")\");\r\n    } else {\r\n      Map.Entry e = (Map.Entry) it.next();\r\n      d.append(d.n == l ? \"(\" : \", \");\r\n      d.append((String) e.getKey()).append(\"=\");\r\n      d.stack.add(this);\r\n      structure_1(e.getValue(), d);\r\n    }"; }});
}

static void clearMapWithCleanUp(Map map) {
  if (map == null) return;
  cleanUp(map);
  map.clear();
}
static ImageSurface showZoomedImage_centered(final RGBImage image) {
  return showZoomedImage_centered(image, 2);
}

static ImageSurface showZoomedImage_centered(String title, RGBImage image) {
  return showZoomedImage_centered(title, image, 2);
}

static ImageSurface showZoomedImage_centered(String title, RGBImage image, double zoom) {
  return setFrameTitle(showZoomedImage_centered(image, zoom), title);
}

static ImageSurface showZoomedImage_centered(final RGBImage image, final double zoom) {
  return (ImageSurface) swingAndWait(new Object() { Object get() { try {
  
    ImageSurface is = showImage_centered(image);
    is.setZoom(zoom);
    packFrame(is);
    return is;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "ImageSurface is = showImage_centered(image);\r\n    is.setZoom(zoom);\r\n    packFrame(is);\r\n    ret is;"; }});
}

static ImageSurface showZoomedImage_centered(ImageSurface surface, final RGBImage image, final double zoom) {
  return showZoomedImage_centered(image, surface, zoom);
}

static ImageSurface showZoomedImage_centered(ImageSurface surface, final RGBImage image, String title, final double zoom) {
  return showZoomedImage_centered(surface, title, image, zoom);
}

static ImageSurface showZoomedImage_centered(ImageSurface surface, String title, final RGBImage image, final double zoom) {
  return setFrameTitle(showZoomedImage_centered(image, surface, zoom), title);
}

static ImageSurface showZoomedImage_centered(ImageSurface surface, final RGBImage image, String title) {
  return showZoomedImage_centered(surface, title, image);
}

static ImageSurface showZoomedImage_centered(ImageSurface surface, String title, final RGBImage image) {
  return showZoomedImage_centered(surface, title, image, 2.0);
}

static ImageSurface showZoomedImage_centered(RGBImage image, ImageSurface surface, double zoom) {
  if (surface == null)
    return showZoomedImage_centered(image, zoom);
  else {
    surface.setImage(image);
    return surface;
  }
}
static void awtEvery(JComponent component, long delay, Runnable r) {
  swingEvery(component, delay, r);
}

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

static void awtEvery(RootPaneContainer frame, long delay, Runnable r) {
  swingEvery(frame, delay, r);
}
static String programTitle() {
  return getProgramName();
}
static volatile StringBuffer local_log = new StringBuffer(); // not redirected
static volatile StringBuffer print_log = local_log; // might be redirected, e.g. to main bot

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

static boolean print_silent; // total mute if set

static volatile ThreadLocal print_byThread; // special handling by thread

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

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

static void print_noNewLine(String s) {
  if (print_byThread != null) {
    Object f = print_byThread.get();
    if (f != null)
      if (isFalse(callF(f, s))) return;
  }
  
  print_raw(s);
}

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

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

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

static void print_append(StringBuffer buf, String s, int max) {
  synchronized(buf) {
    buf.append(s);
    max /= 2;
    if (buf.length() > max) try {
      int newLength = max/2;
      int ofs = buf.length()-newLength;
      String newString = buf.substring(ofs);
      buf.setLength(0);
      buf.append("[...] ").append(newString);
    } catch (Exception e) {
      buf.setLength(0);
    }
  }
}
static Field setOpt_findField(Class c, String field) {
  HashMap<String, Field> map;
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  return map.get(field);
}

static void setOpt(Object o, String field, Object value) { try {
 
  if (o == null) return;
  
  Class c = o.getClass();
  HashMap<String, Field> map;
  
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  
  if (map == getOpt_special) {
    if (o instanceof Class) {
      setOpt((Class) o, field, value);
      return;
    }
    return;
  }
  
  Field f = map.get(field);
  if (f != null)
    smartSet(f, o, value); // possible improvement: skip setAccessible

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

static void setOpt(Class c, String field, Object value) {
  if (c == null) return;
  try {
    Field f = setOpt_findStaticField(c, field);
    if (f != null)
      smartSet(f, null, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}
  
static Field setOpt_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static float rgbAverageBrightness(RGBImage img) {
  return (float) new BWImage(img).averageBrightness();
}
static JLabel jcenteredBoldLabel(String text) {
  JLabel l = jboldLabel(text);
  l.setHorizontalAlignment(JLabel.CENTER);
  return l;
}

static JLabel jcenteredBoldLabel() {
  return jcenteredBoldLabel("");
}
static void messageBox(final String msg) {
  swingAndWait(new Runnable() { public void run() { try { 
    JOptionPane.showMessageDialog(null, msg, "JavaX", JOptionPane.INFORMATION_MESSAGE);
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "JOptionPane.showMessageDialog(null, msg, \"JavaX\", JOptionPane.INFORMATION_MESSAGE);"; }});
}
static int moveToTopRightCorner_inset = 20;

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

static void setText(JTextComponent c, Object text) {
  setText((Object) c, text);
}

static void setText(JLabel c, Object text) {
  setText((Object) c, text);
}

static void setText(JButton c, Object text) {
  setText((Object) c, text);
}

static void setText(final Object c, Object text) {
  if (c == null) return;
  final String s = str(text);
  swingAndWait(new Runnable() { public void run() { try {  call(c, "setText", s) ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "call(c, \"setText\", s)"; }});
}


static Font typeWriterFont() {
  return typeWriterFont(14);
}
  
static Font typeWriterFont(int size) {
  return new Font("Courier", Font.PLAIN, size);
}
static JFrame consoleFrame() {
  return (JFrame) getOpt(get(getJavaX(), "console"), "frame");
}
static JFrame makeFrame() {
  return makeFrame((Component) null);
}

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

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

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

static JFrame makeFrame(final String title, final Object content, final boolean showIt) {
  return (JFrame) swing(new Object() { Object get() { try {
  
    if (getFrame(content) != null)
      return setFrameTitle((Component) content, title);
    final JFrame frame = new JFrame(title);
    if (content != null)
      frame.getContentPane().add(wrap(content));
    frame.setBounds(300, 100, 500, 400);
    if (showIt)
      frame.setVisible(true);
    //callOpt(content, "requestFocus");
    //exitOnFrameClose(frame);
    
    // standard right-click behavior on titles
    if (isSubstanceLAF())
      titlePopupMenu(frame,
        new Object() { void get(JPopupMenu menu) { try {
  
          boolean alwaysOnTop = frame.isAlwaysOnTop();
          menu.add(jmenuItem("Restart Program", "restart"));
          menu.add(jmenuItem("Show Console", "showConsole"));
          menu.add(jCheckBoxMenuItem("Always On Top", alwaysOnTop, new Runnable() { public void run() { try { 
            toggleAlwaysOnTop(frame) ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "toggleAlwaysOnTop(frame)"; }}));
          menu.add(jMenuItem("Shoot Window", new Runnable() { public void run() { try {  shootWindowGUI(frame, 500) ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "shootWindowGUI(frame, 500)"; }}));
         
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "bool alwaysOnTop = frame.isAlwaysOnTop();\r\n          menu.add(jmenuItem(\"Restart Program\", f restart));\r\n          menu.add(jmenuItem(\"Show Console\", f showConsole));\r\n          menu.add(jCheckBoxMenuItem(\"Always On Top\", alwaysOnTop, r {\r\n            toggleAlwaysOnTop(frame) }));\r\n          menu.add(jMenuItem(\"Shoot Window\", r { shootWindowGUI(frame, 500) }));"; }});
    return frame;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "if (getFrame(content) != null)\r\n      ret setFrameTitle((Component) content, title);\r\n    final JFrame frame = new JFrame(title);\r\n    if (content != null)\r\n      frame.getContentPane().add(wrap(content));\r\n    frame.setBounds(300, 100, 500, 400);\r\n    if (showIt)\r\n      frame.setVisible(true);\r\n    //callOpt(content, \"requestFocus\");\r\n    //exitOnFrameClose(frame);\r\n    \r\n    // standard right-click behavior on titles\r\n    if (isSubstanceLAF())\r\n      titlePopupMenu(frame,\r\n        new O { void get(JPopupMenu menu) { try {\n  \r\n          bool alwaysOnTop = frame.isAlwaysOnTop();\r\n          menu.add(jmenuItem(\"Restart Program\", f restart));\r\n          menu.add(jmenuItem(\"Show Console\", f showConsole));\r\n          menu.add(jCheckBoxMenuItem(\"Always On Top\", alwaysOnTop, r {\r\n            toggleAlwaysOnTop(frame) }));\r\n          menu.add(jMenuItem(\"Shoot Window\", r { shootWindowGUI(frame, 500) }));\r\n         \n} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}\n  public S toString() { ret \"bool alwaysOnTop = frame.isAlwaysOnTop();\\r\\n          menu.add(jmenuItem(\\\"Restart Program\\\", f restart));\\r\\n          menu.add(jmenuItem(\\\"Show Console\\\", f showConsole));\\r\\n          menu.add(jCheckBoxMenuItem(\\\"Always On Top\\\", alwaysOnTop, r {\\r\\n            toggleAlwaysOnTop(frame) }));\\r\\n          menu.add(jMenuItem(\\\"Shoot Window\\\", r { shootWindowGUI(frame, 500) }));\"; }});\r\n    ret frame;"; }});
}
static Object callF(Object f, Object... args) {
  return callFunction(f, args);
}
static void printIndent(Object o) {
  print(indentx(str(o)));
}

static void printIndent(String indent, Object o) {
  print(indentx(indent, str(o)));
}

static void printIndent(int indent, Object o) {
  print(indentx(indent, str(o)));
}
static <A> ArrayList<A> asList(A[] a) {
  return new ArrayList<A>(Arrays.asList(a));
}

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

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

static <A> ArrayList<A> asList(Enumeration<A> e) {
  ArrayList l = new ArrayList();
  if (e != null)
    while (e.hasMoreElements())
      l.add(e.nextElement());
  return l;
}
static void rgbFillRect(RGBImage img, int x1, int y1, int w, int h, Color color) {
  rgbFill(img, x1, y1, w, h, colorToInt(color));
}

static void rgbFillRect(RGBImage img, int x1, int y1, int w, int h, int color) {
  rgbFill(img, x1, y1, w, h, color);
}
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();
  quote_impl(s, out);
  return out.toString();
}
  
static void quote_impl(String s, StringBuilder out) {
  out.append('"');
  int l = s.length();
  for (int i = 0; i < l; i++) {
    char c = s.charAt(i);
    if (c == '\\' || c == '"')
      out.append('\\').append(c);
    else if (c == '\r')
      out.append("\\r");
    else if (c == '\n')
      out.append("\\n");
    else
      out.append(c);
  }
  out.append('"');
}
static String shorten(String s, int max) {
  if (s == null) return "";
  if (max < 0) return s;
  return s.length() <= max ? s : s.substring(0, Math.min(s.length(), max)) + "...";
}
static String quoteCharacter(char c) {
  if (c == '\'') return "'\\''";
  if (c == '\\') return "'\\\\'";
  return "'" + c + "'";
}

static JLabel jboldLabel(String text) {
  return makeLabelBold(jlabel(text));
}
static JTextArea wrappedTextArea() {
  JTextArea ta = new JTextArea();
  ta.setLineWrap(true);
  ta.setWrapStyleWord(true);
  return ta;
}

static JTextArea wrappedTextArea(String text) {
  JTextArea ta = wrappedTextArea();
  ta.setText(text);
  return ta;
}
static void swingAndWait(Runnable r) { try {
 
  if (isAWTThread())
    r.run();
  else
    EventQueue.invokeAndWait(r);

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__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 __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "result.set(callF(f));"; }});
    return result.get();
  }
}
static String shortDynamicClassName(Object o) {
 if (o instanceof DynamicObject && ((DynamicObject) o).className != null)
    return ((DynamicObject) o).className;
  return shortClassName(o);
}
static String dropPrefix(String prefix, String s) {
  return s.startsWith(prefix) ? s.substring(l(prefix)) : s;
}
static HashMap<String,Class> findClass_cache = new HashMap();

// currently finds only inner classes of class "main"
// returns null on not found
// this is the simple version that is not case-tolerant
static Class findClass(String name) {
  synchronized(findClass_cache) {
    if (findClass_cache.containsKey(name))
      return findClass_cache.get(name);
      
    if (!isJavaIdentifier(name)) return null;
    
    Class c;
    try {
      c = Class.forName("main$" + name);
    } catch (ClassNotFoundException e) {
      c = null;
    }
    findClass_cache.put(name, c);
    return c;
  }
}
static String shortenClassName(String name) {
  if (name == null) return null;
  int i = lastIndexOf(name, "$");
  if (i < 0) i = lastIndexOf(name, ".");
  return i < 0 ? name : substring(name, i+1);
}
static String str(Object o) {
  return String.valueOf(o);
}

static String str(char[] c) {
  return new String(c);
}
static boolean isSubtypeOf(Class a, Class b) {
  return b.isAssignableFrom(a); // << always hated that method, let's replace it!
}
static String getType(Object o) {
  return getClassName(o);
}
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 JPanel jcenteredline(Component... components) {
  return new CenteredLine(components);
}

static JPanel jcenteredline(List<Component> components) {
  return new CenteredLine(asArray(Component.class, components));
}
static String fixNewLines(String s) {
  return s.replace("\r\n", "\n").replace("\r", "\n");
}
static volatile boolean ping_pauseAll;
static int ping_sleep = 100; // poll pauseAll flag every 100
static volatile boolean ping_anyActions;
static Map<Thread, Object> ping_actions = synchroMap(new WeakHashMap());

// returns true if it did anything
static boolean ping() { try {
 
  if (ping_pauseAll && !isAWTThread()) {
    do
      Thread.sleep(ping_sleep);
    while (ping_pauseAll);
    return true;
  }
  
  if (ping_anyActions) {
    Object action;
    synchronized(mc()) {
      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 (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static <A extends Component> A setFrameTitle(A c, String title) {
  JFrame f = getFrame(c);
  if (f == null)
    showFrame(title, c);
  else
    f.setTitle(title);
  return c;
}

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

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

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

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

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

static BitSet unnull(BitSet b) {
  return b == null ? new BitSet() : b;
}
static JLabel jcenteredLabel(String text) {
  JLabel l = jLabel(text);
  l.setHorizontalAlignment(JLabel.CENTER);
  return l;
}

static JLabel jcenteredLabel() {
  return jcenteredLabel(" ");
}

static int getScreenWidth() {
  return getScreenSize().width;
}
static JPanel northAndCenter(Component n, Component c) {
  return centerAndNorth(c, n);
}
static JFrame centerFrame(JFrame frame) {
  frame.setLocationRelativeTo(null); // magic trick
  return frame;
}
  
  // Data files are immutable, use centralized cache
public static File DiskSnippetCache_getLibrary(long snippetID) throws IOException {
  File file = new File(getGlobalCache(), "data_" + snippetID + ".jar");
  return file.exists() ? file : null;
}

public static void DiskSnippetCache_putLibrary(long snippetID, byte[] data) throws IOException {
  saveBinaryFile(new File(getGlobalCache(), "data_" + snippetID).getPath() + ".jar", data);
}

static byte[] loadDataSnippetImpl(String snippetID) throws IOException {
  byte[] data;
  try {
    URL url = new URL("http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_"
      + parseSnippetID(snippetID) + "&contentType=application/binary");
    System.err.println("Loading library: " + url);
    try {
      data = loadBinaryPage(url.openConnection());
    } catch (RuntimeException e) {
      data = null;
    }
    
    if (data == null || data.length == 0) {
      url = new URL("http://data.tinybrain.de/blobs/"
        + parseSnippetID(snippetID));
      System.err.println("Loading library: " + url);
      data = loadBinaryPage(url.openConnection());
    }
    System.err.println("Bytes loaded: " + data.length);
  } catch (FileNotFoundException e) {
    throw new IOException("Binary snippet #" + snippetID + " not found or not public");
  }
  return data;
}
static ActionListener actionListener(final Object runnable) {
  return new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { pcallF(runnable); }};
}
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 void assertTrue(Object o) {
  assertEquals(true, o);
}
  
static boolean assertTrue(String msg, boolean b) {
  if (!b)
    throw fail(msg);
  return b;
}

static boolean assertTrue(boolean b) {
  if (!b)
    throw fail("oops");
  return b;
}
static <A> ArrayList<A> litlist(A... a) {
  return new ArrayList<A>(Arrays.asList(a));
}
// menuMaker = voidfunc(JPopupMenu)
static void titlePopupMenu(final Component c, final Object menuMaker) {
  swingNowOrLater(new Runnable() { public void run() { try { 
    if (!isSubstanceLAF())
      print("Can't add title right click!");
    else {
      JComponent titleBar = getTitlePaneComponent(getFrame(c));
      componentPopupMenu(titleBar, menuMaker);
    }
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "if (!isSubstanceLAF())\n      print(\"Can't add title right click!\");\n    else {\n      JComponent titleBar = getTitlePaneComponent(getFrame(c));\n      componentPopupMenu(titleBar, menuMaker);\n    }"; }});
}
static String autoFrameTitle() {
  return getProgramTitle();
}

static void autoFrameTitle(Component c) {
  setFrameTitle(getFrame(c), autoFrameTitle());
}
static JFrame showFrame() {
  return makeFrame();
}

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

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

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

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

// make or update frame
static JFrame showFrame(String title, Object content, JFrame frame) {
  if (frame == null)
    return showFrame(title, content);
  else {
    frame.setTitle(title);
    setFrameContents(frame, content);
    return frame;
  }
}
static boolean endsWithLetter(String s) {
  return nempty(s) && isLetter(last(s));
}
static String getFrameTitle(Component c) {
  JFrame f = getFrame(c);
  return f == null ? null : f.getTitle();
}
static void swingEvery(JComponent component, long delay, Runnable r) {
  installTimer(component, delay, r);
}

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

static void swingEvery(RootPaneContainer frame, long delay, Runnable r) {
  installTimer(frame, delay, r);
}
static String replaceLeader(String a, String sep, String b) {
  return joinStrings(sep, a, dropUpToFirst(b, sep));
}
static int max(int a, int b) {
  return Math.max(a, b);
}

static int max(int a, int b, int c) {
  return max(max(a, b), c);
}

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

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

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

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

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

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

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

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

static short max(short[] c) {
  short x = -0x8000;
  for (short d : c) if (d > x) x = d;
  return x;
}
static List<String> javaTokC(String s) {
  int l = s.length();
  ArrayList<String> tok = new ArrayList();
  
  int i = 0;
  while (i < l) {
    int j = i;
    char c, d;
    
    // scan for whitespace
    while (j < l) {
      c = s.charAt(j);
      d = j+1 >= l ? '\0' : s.charAt(j+1);
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
        ++j;
      else if (c == '/' && d == '*') {
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
        j = Math.min(j+2, l);
      } else if (c == '/' && d == '/') {
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
      } else
        break;
    }
    
    i = j;
    if (i >= l) break;
    c = s.charAt(i);
    d = i+1 >= l ? '\0' : s.charAt(i+1);

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

static <A> A assertEquals(Object x, A y) {
  return assertEquals(null, x, y);
}

static <A> A assertEquals(String msg, Object x, A y) {
  if (!(x == null ? y == null : x.equals(y)))
    throw fail((msg != null ? msg + ": " : "") + x + " != " + y);
  return y;
}
static JWindow showAnim(String imageID, double seconds) {
  return showAnimationInTopRightCorner(imageID, seconds);
}

static JWindow showAnim(String imageID) {
  return showAnimationInTopRightCorner(imageID);
}

static JWindow showAnim(String imageID, String text) {
  return showAnimationInTopRightCorner(imageID, text);
}

static JWindow showAnim(String imageID, String text, double seconds) {
  return showAnimationInTopRightCorner(imageID, text, seconds);
}

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

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


  static int l(MultiSet ms) { return ms == null ? 0 : ms.size(); }

static boolean isAbstract(Class c) {
  return (c.getModifiers() & Modifier.ABSTRACT) != 0;
}
static int getScreenHeight() {
  return getScreenSize().height;
}
  static Object call(Object o) {
    return callFunction(o);
  }
  
  // varargs assignment fixer for a single string array argument
  static Object call(Object o, String method, String[] arg) {
    return call(o, method, new Object[] {arg});
  }
  
  static Object call(Object o, String method, Object... args) {
    try {
      if (o instanceof Class) {
        Method m = call_findStaticMethod((Class) o, method, args, false);
        m.setAccessible(true);
        return m.invoke(null, args);
      } else {
        Method m = call_findMethod(o, method, args, false);
        m.setAccessible(true);
        return m.invoke(o, args);
      }
    } catch (Exception e) {
      throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e);
    }
  }

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

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

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

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

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


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

static Field[] getDeclaredFields_cached(Class c) {
  Field[] fields;
  synchronized(getDeclaredFields_cache) {
    fields = getDeclaredFields_cache.get(c);
    if (fields == null) {
      getDeclaredFields_cache.put(c, fields = c.getDeclaredFields());
      for (Field f : fields)
        f.setAccessible(true);
    }
  }
  return fields;
}
static Object swing(Object f) {
  return swingAndWait(f);
}
static Object pcallFunction(Object f, Object... args) {
  try { /* pcall 1*/  return callFunction(f, args); /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
  return null;
}
// action can be Runnable or a function name
static JButton newButton(String text, final Object action) {
  JButton btn = new JButton(text);
  if (action != null)
    btn.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) {
      callFunction(action);
    }});
  return btn;
}
static String boolArrayToHex(boolean[] a) {
  return bytesToHex(boolArrayToBytes(a));
}
static Pt centerOfRect(Rect r) {
  return r == null ? null : new Pt(r.x+r.w/2, r.y+r.h/2);
}
static Object first(Object list) {
  return empty((List) list) ? null : ((List) list).get(0);
}

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

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

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

static List<String> myInnerClasses_list=litlist(
"GameForAI", "AI", "Puzzle", "Game", "ClickOnBrighterImage", "structure_Data", "AutoVMExit", "unstructure_Receiver", "componentPopupMenu_Maker", "Image2B", "Producer", "Pt", "ImageSurfaceSelector", "Rect", "ImageSurface", "Surface", "DynamicObject", "CenteredLine", "LetterLayout", "BWImage", "BWImageSimpleStorage", "Var", "MultiSet", "RGB", "RGBImage", "TransferableImage");

static List<String> myInnerClasses() {
  return myInnerClasses_list;
}
static Class<?> _getClass(String name) {
  try {
    return Class.forName(name);
  } catch (ClassNotFoundException e) {
    return null;
  }
}

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 (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  static RGBImage loadImage(String snippetIDOrURL) {
    return new RGBImage(loadBufferedImage(snippetIDOrURL));
  }

  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 <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 getStackTrace(Throwable throwable) {
  StringWriter writer = new StringWriter();
  throwable.printStackTrace(new PrintWriter(writer));
  return writer.toString();
}
static boolean neq(Object a, Object b) {
  return !eq(a, b);
}
static void quoteToPrintWriter(String s, PrintWriter out) {
  if (s == null) { out.print("null"); return; }
  out.print('"');
  int l = s.length();
  for (int i = 0; i < l; i++) {
    char c = s.charAt(i);
    if (c == '\\' || c == '"') {
      out.print('\\'); out.print(c);
    } else if (c == '\r')
      out.print("\\r");
    else if (c == '\n')
      out.print("\\n");
    else
      out.print(c);
  }
  out.print('"');
}
static boolean isFalse(Object o) {
  return eq(false, o);
}
static void moveDown(JFrame f, int y) {
  if (f == null) return;
  f.setLocation(f.getX(), f.getY()+y);
}
static boolean eq(Object a, Object b) {
  if (a == null) return b == null;
  if (a.equals(b)) return true;
  if (a instanceof BigInteger) {
    if (b instanceof Integer) return a.equals(BigInteger.valueOf((Integer) b));
    if (b instanceof Long) return a.equals(BigInteger.valueOf((Long) b));
  }
  return false;
}
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 synchronized void saveLocally2(Object obj, String progID, String variableName) {
  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, structure(x));
    textFile.delete();
  }
}
static JTextField onEnter(JTextField tf, final Object action) {
  if (action == null || tf == null) return tf;
  tf.addActionListener(actionListener(action));
  return tf;
}

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

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

static void setContentPane(JFrame frame, Container c) {
  frame.setContentPane(c);
  revalidate(frame);
}
static Object nuObject(String className, Object... args) { try {
 
  return nuObject(Class.forName(className), args);

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

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

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

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__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 new RuntimeException("Constructor " + c.getName() + getClasses(args) + " not found");
}

 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 firstInstance(Collection c, Class<A> type) {
  return firstOfType(c, type);
}
static ImageSurface showImage_centered(final BufferedImage img) {
  return (ImageSurface) swing(new Object() { Object get() { try {
  
    ImageSurface is = new ImageSurface(img);
    JPanel panel = new JPanel(new GridBagLayout());
    panel.add(is);
    JFrame frame = showPackedFrame(new JScrollPane(panel));
    frameIcon(frame, showImage_defaultIcon);
    return is;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "ImageSurface is = new ImageSurface(img);\r\n    JPanel panel = new JPanel(new GridBagLayout);\r\n    panel.add(is);\r\n    JFrame frame = showPackedFrame(new JScrollPane(panel));\r\n    frameIcon(frame, showImage_defaultIcon);\r\n    return is;"; }});
}

static ImageSurface showImage_centered(final BufferedImage img, final String title) {
  return setFrameTitle(showImage_centered(img), title);
}

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

static ImageSurface showImage_centered(String title, RGBImage img) {
  return showImage_centered(title, img.getBufferedImage());
}

// make or update the ImageSurface
static ImageSurface showImage_centered(ImageSurface is, String title, BufferedImage img) {
  if (is == null) return showImage_centered(title, img);
  is.setImage(img);
  setFrameTitle(is, title);
  return is;
}

static ImageSurface showImage_centered(ImageSurface surface, RGBImage img, String title) {
  return setFrameTitle(showImage_centered(img, surface), title);
}

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

static ImageSurface showImage_centered(RGBImage img) {
  return showImage_centered(img.getBufferedImage());
}

static ImageSurface showImage_centered(ImageSurface surface, String title, RGBImage img) {
  return showImage_centered(surface, img, title);
}

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 int moveToTopLeftCorner_inset = 20;

static void moveToTopLeftCorner(Component c) {
  Window w = getWindow(c);
  if (w != null)
    w.setLocation(moveToTopLeftCorner_inset, moveToTopLeftCorner_inset);
}

static JFrame getFrame(Object 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;
}
static String substanceLAF_defaultSkin = "Creme";

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

static void substanceLAF(String skinName) {
  try { /* pcall 1*/ 
    enableSubstance_impl(or2(skinName, substanceLAF_defaultSkin));
  /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
}
static String substring(String s, int x) {
  return safeSubstring(s, x);
}

static String substring(String s, int x, int y) {
  return safeSubstring(s, x, y);
}
static final WeakHashMap<Class, HashMap<String, Field>> getOpt_cache = new WeakHashMap();
static final HashMap getOpt_special = new HashMap(); // just a marker

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

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

  Class c = o.getClass();
  HashMap<String, Field> map;
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  
  if (map == getOpt_special) {
    if (o instanceof Class)
      return getOpt((Class) o, field);
    if (o instanceof String)
      return getOpt(getBot((String) 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 (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

// used internally - we are in synchronized block
static HashMap<String, Field> getOpt_makeCache(Class c) {
  HashMap<String, Field> map;
  if (isSubtypeOf(c, Map.class))
    map = getOpt_special;
  else {
    map = new HashMap();
    Class _c = c;
    do {
      for (Field f : _c.getDeclaredFields()) {
        f.setAccessible(true);
        String name = f.getName();
        if (!map.containsKey(name))
          map.put(name, f);
      }
      _c = _c.getSuperclass();
    } while (_c != null);
  }
  getOpt_cache.put(c, map);
  return map;
}
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 void cleanUp(Object c) {
  if (c == null) return;
  if (c instanceof Collection) { cleanUp((Collection) c); return; }
  if (c instanceof Map) {
    for (Object o : keys((Map) c)) cleanUp(o);
    for (Object o : values((Map) c)) cleanUp(o);
    ((Map) c).clear();
    return;
  }
  //if (!(c instanceof Class)) ret;
  
  try { /* pcall 1*/ 
    // revoke license
    
    callOpt(c, "licensed_off");
    
    // unpause
    
    setOpt(c, "ping_pauseAll", false);
    
    // call custom cleanMeUp() and cleanMeUp_*() functions
    
    if (!isFalse(pcallOpt(c, "cleanMeUp")))
      for (String name : methodsStartingWith(c, "cleanMeUp_"))
        pcallOpt(c, name);

    // remove all virtual bots (does this work?)
    
    List androids = (List) getOpt(c, "record_list");
    List ports = getMultiPorts();
    if (androids != null)
      for (Object port : ports)
        for (Object android : androids)
          callOpt(android, "dispose"); // heck we'll dispose anything

    // sub-cleanup
    
    List<WeakReference> classes = (List<WeakReference>) ( getOpt(c, "hotwire_classes"));
    if (classes != null)
      for (WeakReference cc : classes) try { /* pcall 1*/ 
        cleanUp(cc.get());
      /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
  /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
}

static void cleanUp(Collection l) {
  if (l == null) return;
  for (Object c : l)
    cleanUp(c);
  l.clear();
}
static void readLocally(String progID, String varNames) {
  readLocally2(mc(), progID, varNames);
}

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

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

static int readLocally_stringLength;

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

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

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__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 Dimension getScreenSize() {
  return Toolkit.getDefaultToolkit().getScreenSize();
}
static boolean mouseInWindow(Component c) {
  Window w = getWindow(c);
  return w != null && w.isShowing() && boundsOnScreen(w).contains(mousePosition());
}
static JFrame showPackedFrame(String title, Component contents) {
  return packFrame(showFrame(title, contents));
}

static JFrame showPackedFrame(Component contents) {
  return packFrame(showFrame(contents));
}
static void setOptAll(Object o, Map<String, Object> fields) {
  if (fields == null) return;
  for (String field : keys(fields))
    setOpt(o, field, fields.get(field));
}

static void setOptAll(Object o, Object... values) {
  //values = expandParams(c.getClass(), values);
  warnIfOddCount(values);
  for (int i = 0; i+1 < l(values); i += 2) {
    String field = (String) values[i];
    Object value = values[i+1];
    setOpt(o, field, value);
  }
}
static boolean isEmpty(Collection c) {
  return c == null || c.isEmpty();
}

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

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

static boolean isEmpty(Map map) {
  return map == null || map.isEmpty();
}
static void smartSet(Field f, Object o, Object value) throws Exception {
  f.setAccessible(true);
  
  // take care of common case (long to int)
  if (f.getType() == int.class && value instanceof Long)
    value = ((Long) value).intValue();
    
  try {
    f.set(o, value);
  } catch (Exception e) {
    try {
      if (f.getType().getName().equals("main$Concept$Ref")) {
        f.set(o, nuObject("main$Concept$Ref", o, value));
        return;
      }
      if (o.getClass().getName().equals("main$Concept$Ref")) {
        f.set(o, call(o, "get"));
        return;
      }
    } catch (Throwable _e) {}
    throw e;
  }
}
static boolean autoVMExit_debug;

// TODO: don't ship the class in clients anymore, it's in JavaX
// anyway.

static synchronized void autoVMExit() {
  if (!_inCore() && hasMethod(getJavaX(), "autoVMExit")) {
    if (autoVMExit_debug)
      print("autoVMExit -> core");
    call(getJavaX(), "autoVMExit"); // do it centrally
  } else
    AutoVMExit.install();
}

static class AutoVMExit extends TimerTask {
  static boolean installed;
  static boolean disabled;
  int lastObjectCount = -1;
  static java.util.Timer timer;
  static int firstDelay = 30000;
  static int delay = 5000;

  public static void install() {
    if (!installed) {
      installed = true;
      if (!disabled) {
        timer = new java.util.Timer("AutoVMExit");
        timer.scheduleAtFixedRate(new AutoVMExit(), firstDelay, delay);
      }
    }
  }

  /** Looks for objects that give us a reason to keep the VM alive.
   *  Right now we count windows, tray icons and JavaFX stages. */
  public void run() {
    int objectCount = autoVMExit_visibleObjects();

    //System.out.println("Windows: " + objectCount);
    if (objectCount == 0 && lastObjectCount == 0) {
      System.out.println("AutoVMExit: No windows open or tray icons installed - exiting");
      System.exit(0);
    }
    lastObjectCount = objectCount;
  }

  public static void disable() {
    disabled = true;
    if (timer != null)
      timer.cancel();
  }

  public static int getFirstDelay() {
    return firstDelay;
  }

  public static void setFirstDelay(int firstDelay) {
    AutoVMExit.firstDelay = firstDelay;
  }

  public static int getDelay() {
    return delay;
  }

  public static void setDelay(int delay) {
    AutoVMExit.delay = delay;
  }
}
static <A> A popLast(List<A> l) {
  return liftLast(l);
}
static String getProgramName_cache;

static synchronized String getProgramName() {
  if (getProgramName_cache == null)
    getProgramName_cache = getSnippetTitleOpt(programID());
  return getProgramName_cache;
}
static boolean containsPoint(List<Rect> l, Pt p) {
  for (Rect r : l) if (r.contains(p)) return true; return false;
}
static JFrame frameIcon(Component c, String imageID) {
  return setFrameIconLater(c, imageID);
}
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 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 Object callFunction(Object f, Object... args) {
  if (f == null) return null;
  if (f instanceof Runnable) {
    ((Runnable) f).run();
    return null;
  } else if (f instanceof String)
    return call(mc(), (String) f, args);
  else
    return call(f, "get", args);
  //else throw fail("Can't call a " + getClassName(f));
}
static void setFrameContents(JFrame frame, Object contents) {
  frame.getContentPane().removeAll();
  frame.getContentPane().add(wrap(contents));
  revalidate(frame);
}
static boolean isAWTThread() {
  if (isAndroid()) return false;
  if (isHeadless()) return false;
  return isTrue(callOpt(getClass("javax.swing.SwingUtilities"), "isEventDispatchThread"));
}
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 Thread currentThread() {
  return Thread.currentThread();
}
static Point mousePosition() {
  return MouseInfo.getPointerInfo().getLocation();
}
static Object pcallOpt(Object o, String method, Object... args) {
  try { /* pcall 1*/  return callOpt(o, method, args); /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
  return null;
}
 // Substance
 // Trident (required by Substance)


static void enableSubstance_impl(final String skinName) { swingAndWait(new Runnable() { public void run() { try { 
  if (!substanceLookAndFeelEnabled())
    enableSubstance_impl_2(skinName);

} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "if (!substanceLookAndFeelEnabled())\r\n    enableSubstance_impl_2(skinName);"; }}); }

static void enableSubstance_impl_2(String skinName) { try {
 
  ClassLoader cl = main.class.getClassLoader();
  UIManager.getDefaults().put("ClassLoader", cl);
  Thread.currentThread().setContextClassLoader(cl);
  String skinClassName = "org.pushingpixels.substance.api.skin." + addSuffix(skinName, "Skin");
  SubstanceSkin skin = (SubstanceSkin) nuObject(cl.loadClass(skinClassName));
  SubstanceLookAndFeel.setSkin(skin);
  JFrame.setDefaultLookAndFeelDecorated(true);  
  updateLookAndFeelOnAllWindows();
  
  if (substanceLookAndFeelEnabled())
    print("Substance L&F enabled.");
  else
    print("Could not enable Substance L&F?");

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static JComponent getTitlePaneComponent(Window window) {
  if (!substanceLookAndFeelEnabled()) return null;
  
	JRootPane rootPane = null;
	if (window instanceof JFrame) {
		JFrame f = (JFrame) window;
		rootPane = f.getRootPane();
	}
	if (window instanceof JDialog) {
		JDialog d = (JDialog) window;
		rootPane = d.getRootPane();
	}
	if (rootPane != null) {
		Object /*SubstanceRootPaneUI*/ ui = rootPane.getUI();
		return (JComponent) call(ui, "getTitlePane");
	}
	return null;
}

static String quickSubstring(String s, int i, int j) {
  if (i == j) return "";
  return s.substring(i, j);
}
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> A firstOfType(Collection c, Class<A> type) {
  for (Object x : c)
    if (isInstanceX(type, x))
      return (A) x;
  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_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_iterator(text), allDynamic, classFinder);
}

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

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

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

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

static boolean unstructure_debug;
static List<AbstractButton> buttonsInGroup(ButtonGroup g) {
  if (g == null) return ll();
  return asList(g.getElements());
}
static class componentPopupMenu_Maker {
  List menuMakers = new ArrayList();
}

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

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

// menuMaker = voidfunc(JPopupMenu)
static void componentPopupMenu(final JComponent component, final Object menuMaker) {
  swingNowOrLater(new Runnable() { public void run() { try { 
    componentPopupMenu_Maker maker = componentPopupMenu_map.get(component);
    if (maker == null) {
      componentPopupMenu_map.put(component, maker = new componentPopupMenu_Maker());
      final componentPopupMenu_Maker _maker = maker;
      component.addMouseListener(new MouseAdapter() {
        public void mousePressed(MouseEvent e) { displayMenu(e); }
        public void mouseReleased(MouseEvent e) { displayMenu(e); }
      
        void displayMenu(MouseEvent e) {
          if (e.isPopupTrigger()) {
            JPopupMenu menu = new JPopupMenu();
            int emptyCount = menu.getComponentCount();
            
            componentPopupMenu_mouseEvent.set(e);
            for (Object menuMaker : _maker.menuMakers)
              pcallF(menuMaker, menu);
            
            // show menu if any items in it
            if (menu.getComponentCount() != emptyCount)
              menu.show(e.getComponent(), e.getX(), e.getY());
          }
        }
      });
    }
    maker.menuMakers.add(menuMaker);
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "componentPopupMenu_Maker maker = componentPopupMenu_map.get(component);\n    if (maker == null) {\n      componentPopupMenu_map.put(component, maker = new componentPopupMenu_Maker);\n      final componentPopupMenu_Maker _maker = maker;\n      component.addMouseListener(new MouseAdapter {\n        public void mousePressed(MouseEvent e) { displayMenu(e); }\n        public void mouseReleased(MouseEvent e) { displayMenu(e); }\n      \n        void displayMenu(MouseEvent e) {\n          if (e.isPopupTrigger()) {\n            new JPopupMenu menu;\n            int emptyCount = menu.getComponentCount();\n            \n            componentPopupMenu_mouseEvent.set(e);\n            for (Object menuMaker : _maker.menuMakers)\n              pcallF(menuMaker, menu);\n            \n            // show menu if any items in it\n            if (menu.getComponentCount() != emptyCount)\n              menu.show(e.getComponent(), e.getX(), e.getY());\n          }\n        }\n      });\n    }\n    maker.menuMakers.add(menuMaker);"; }});
}
static Class __javax;

static Class getJavaX() {
  return __javax;
}
static String getSnippetTitleOpt(String s) {
  return isSnippetID(s) ? getSnippetTitle(s) : s;
}
static void set(Object o, String field, Object value) {
  if (o instanceof Class) set((Class) o, field, value);
  else try {
    Field f = set_findField(o.getClass(), field);
    smartSet(f, o, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

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

static Field set_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}
// hmm, this shouldn't call functions really. That was just
// for coroutines.
static boolean isTrue(Object o) {
  if (o instanceof Boolean)
    return ((Boolean) o).booleanValue();
  if (o == null) return false;
  return ((Boolean) callF(o)).booleanValue();
}

static boolean isTrue(Object pred, Object arg) {
  return booleanValue(callF(pred, arg));
}
static File getGlobalCache() {
  File file = new File(userHome(), ".tinybrain/snippet-cache");
  file.mkdirs();
  return file;
}

static boolean loadBufferedImage_useImageCache = true;

static BufferedImage loadBufferedImage(String snippetIDOrURL) { try {
 
  if (snippetIDOrURL == null) return null;
  if (isURL(snippetIDOrURL))
    return ImageIO.read(new URL(snippetIDOrURL));

  if (!isSnippetID(snippetIDOrURL)) throw fail("Not a URL or snippet ID: " + snippetIDOrURL);
  String snippetID = "" + parseSnippetID(snippetIDOrURL);
  
try {
  File dir = getCacheProgramDir("Image-Snippets");
  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(snippetID);
  System.err.println("Loading image: " + imageURL);
  BufferedImage image = ImageIO.read(new URL(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 (IOException e) {
  throw new RuntimeException(e);
 }

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

static BufferedImage loadBufferedImage(File file) { try {
 
  return file.isFile() ? ImageIO.read(file) : null;

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static String dropUpToFirst(String a, String b) {
  if (a == null) return null;
  if (b == null) return a;
  int i = a.indexOf(b);
  return i < 0 ? a : substring(a, i+l(b));
}
// c = JComponent or something implementing swing()
static JComponent wrap(Object swingable) {
  JComponent c = (JComponent) ( swingable instanceof JComponent ? swingable : callOpt(swingable, "swing"));
  if (c instanceof JTable || c instanceof JList
    || c instanceof JTextArea || c instanceof JEditorPane
    || c instanceof JTextPane)
    return new JScrollPane(c);
  return c;
}

static boolean frameTooSmall(JFrame frame) {
  return frame.getWidth() < 100 || frame.getHeight() < 50;
}
static List<String> methodsStartingWith(Object o, final String prefix) {
  return filter(allMethodNames(o), new Object() { Object get(String s) { try {
  return  startsWith(s, prefix) ; 
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "startsWith(s, prefix)"; }});
}
static <A> A getAndClearThreadLocal(ThreadLocal<A> tl) {
  A a = tl.get();
  tl.set(null);
  return a;
}
static boolean showAnimationInTopRightCorner_alwaysOnTop = true;

// automatically switches to AWT thread for you
// text is optional text below image
static JWindow showAnimationInTopRightCorner(String imageID, String text) {
  return showAnimationInTopRightCorner(imageIcon(imageID), text);
}

static JWindow showAnimationInTopRightCorner(final BufferedImage image, final String text) {
  return showAnimationInTopRightCorner(imageIcon(image), text);
}

static JWindow showAnimationInTopRightCorner(final ImageIcon imageIcon, final String text) {
  if (isHeadless()) return null;
  return (JWindow) swingAndWait(new Object() { Object get() { try {
  
    JLabel label = new JLabel(imageIcon);
    if (nempty(text)) {
      label.setText(text);
      label.setVerticalTextPosition(SwingConstants.BOTTOM);
      label.setHorizontalTextPosition(SwingConstants.CENTER);
    }
    final JWindow window = showInTopRightCorner(label);
    onClick(label, new Runnable() { public void run() { try {  window.dispose() ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "window.dispose()"; }});
    if (showAnimationInTopRightCorner_alwaysOnTop)
      window.setAlwaysOnTop(true);
    return window;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "JLabel label = new JLabel(imageIcon);\r\n    if (nempty(text)) {\r\n      label.setText(text);\r\n      label.setVerticalTextPosition(SwingConstants.BOTTOM);\r\n      label.setHorizontalTextPosition(SwingConstants.CENTER);\r\n    }\r\n    final JWindow window = showInTopRightCorner(label);\r\n    onClick(label, r { window.dispose() });\r\n    if (showAnimationInTopRightCorner_alwaysOnTop)\r\n      window.setAlwaysOnTop(true);\r\n    ret window;"; }});
}

static JWindow showAnimationInTopRightCorner(final String imageID) {
  return showAnimationInTopRightCorner(imageID, "");
}

static JWindow showAnimationInTopRightCorner(String imageID, double seconds) {
  return showAnimationInTopRightCorner(imageID, "", seconds);
}

static JWindow showAnimationInTopRightCorner(String imageID, String text, double seconds) {
  if (isHeadless()) return null;
  return disposeWindowAfter(iround(seconds*1000),
    showAnimationInTopRightCorner(imageID, text));
}

static JLabel makeLabelBold(final JLabel l) {
  if (l != null) { swingAndWait(new Runnable() { public void run() { try { 
    l.setFont(l.getFont().deriveFont(Font.BOLD));
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "l.setFont(l.getFont().deriveFont(Font.BOLD));"; }}); }
  return l;
}
static String indentx(String s) {
  return indentx(indent_default, s);
}

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

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

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

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

static String getProgramTitle() {
  return getProgramName();
}
static <A> A last(List<A> l) {
  return l.isEmpty() ? null : l.get(l.size()-1);
}

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

static int last(int[] a) {
  return l(a) != 0 ? a[l(a)-1] : 0;
}
static String classNameToVM(String name) {
  return name.replace(".", "$");
}
static boolean hasMethod(Object o, String method, Object... args) {
  return findMethod(o, method, args) != null;
}
static void revalidate(Component c) {
  if (c == null || !c.isShowing()) return;
  // magic combo to actually relayout and repaint
  c.revalidate();
  c.repaint();
}
  /** writes safely (to temp file, then rename) */
  public static void saveTextFile(String fileName, String contents) throws IOException {
    File file = new File(fileName);
    File parentFile = file.getParentFile();
    if (parentFile != null)
      parentFile.mkdirs();
    String tempFileName = fileName + "_temp";
    File tempFile = new File(tempFileName);
    if (contents != null) {
      if (tempFile.exists()) try {
        String saveName = tempFileName + ".saved." + now();
        copyFile(tempFile, new File(saveName));
      } catch (Throwable e) { printStackTrace(e); }
      FileOutputStream fileOutputStream = newFileOutputStream(tempFile.getPath());
      OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, "UTF-8");
      PrintWriter printWriter = new PrintWriter(outputStreamWriter);
      printWriter.print(contents);
      printWriter.close();
    }
    
    if (file.exists() && !file.delete())
      throw new IOException("Can't delete " + fileName);

    if (contents != null)
      if (!tempFile.renameTo(file))
        throw new IOException("Can't rename " + tempFile + " to " + file);
  }
  
  public static void saveTextFile(File fileName, String contents) {
    try {
      saveTextFile(fileName.getPath(), contents);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }

static JFrame setFrameIconLater(Component c, final String imageID) {
  final JFrame frame = getFrame(c);
  if (frame != null)
    { /*nt*/ Thread _t_0 = new Thread("Loading Icon") {
public void run() { /* in run */ try { /* pcall 1*/  /* in thread */ 
  
      final Image i = imageIcon(or2(imageID, "#1005557")).getImage();
      swingLater(new Runnable() { public void run() { try { 
        frame.setIconImage(i);
      
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "frame.setIconImage(i);"; }});
    /* in thread */ /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); } /* in run */ }
};
_t_0.start(); }
  return frame;
}
static void warnIfOddCount(Object... list) {
  if (odd(l(list)))
    printStackTrace("Odd list size: " + list);
}
  /** writes safely (to temp file, then rename) */
  public static void saveBinaryFile(String fileName, byte[] contents) throws IOException {
    File file = new File(fileName);
    File parentFile = file.getParentFile();
    if (parentFile != null)
      parentFile.mkdirs();
    String tempFileName = fileName + "_temp";
    FileOutputStream fileOutputStream = newFileOutputStream(tempFileName);
    fileOutputStream.write(contents);
    fileOutputStream.close();
    if (file.exists() && !file.delete())
      throw new IOException("Can't delete " + fileName);

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

  static void saveBinaryFile(File fileName, byte[] contents) {
    try {
      saveBinaryFile(fileName.getPath(), contents);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
static List emptyList() {
  return new ArrayList();
  //ret Collections.emptyList();
}
static void frameStandardSize(JFrame frame) {
  frame.setBounds(300, 100, 500, 400);
}
static <A> List<A> synchroList() {
  return Collections.synchronizedList(new ArrayList<A>());
}

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


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

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

static Timer installTimer(final JComponent component, final Object r, final long delay, final long firstDelay, final boolean repeats) {
  return (Timer) swingAndWait(new Object() { Object get() { try {
  
    Timer timer = new Timer(toInt(delay), new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) {
      try { /* pcall 1*/ 
        if (!allPaused())
          callF(r);
      /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
    }});
    timer.setInitialDelay(toInt(firstDelay));
    timer.setRepeats(repeats);
    bindTimerToComponent(timer, component);
    return timer;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "Timer timer = new Timer(toInt(delay), actionListener {\r\n      pcall {\r\n        if (!allPaused())\r\n          callF(r);\r\n      }\r\n    });\r\n    timer.setInitialDelay(toInt(firstDelay));\r\n    timer.setRepeats(repeats);\r\n    bindTimerToComponent(timer, component);\r\n    ret timer;"; }});
}

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

static String programID() {
  return getProgramID();
}
static int lastIndexOf(String a, String b) {
  return a == null || b == null ? -1 : a.lastIndexOf(b);
}
static Object getOpt(Object o, String field) {
  return getOpt_cached(o, field);
}

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

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

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

static 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 JPanel centerAndNorth(Component c, Component n) {
  JPanel panel = new JPanel(new BorderLayout());
  panel.add(BorderLayout.CENTER, wrap(c));
  panel.add(BorderLayout.NORTH, wrap(n));
  return panel;
}
// hopefully covers all cases :)
static String safeSubstring(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 String safeSubstring(String s, int x) {
  return safeSubstring(s, x, l(s));
}

static Object getBot(String botID) {
  return callOpt(getMainBot(), "getBot", botID);
}

static void shootWindowGUI(JFrame frame) {
  showImage("Screenshot (" + frame.getTitle() + ")", shootWindow(frame));
}

static void shootWindowGUI(final JFrame frame, int delay) {
  awtLater(frame, delay, new Runnable() { public void run() { try {  shootWindowGUI(frame) ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "shootWindowGUI(frame)"; }});
}

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 boolean isSubstanceLAF() {
  return substanceLookAndFeelEnabled();
}
static JMenuItem jmenuItem(String text, final Object r) {
  JMenuItem mi = new JMenuItem(text);
  mi.addActionListener(actionListener(r));
  return mi;
}
static Object safeUnstructure(String s) {
  return unstructure(s, true);
}
static boolean isJavaIdentifier(String s) {
  if (s.length() == 0 || !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 int autoVMExit_visibleObjects() {
  int objectCount = 0;
  
  // Scan for windows

  Window[] windowList = Window.getWindows();
  for (Window window : windowList) {
    if (window.isVisible())
      ++objectCount;
  }

  // Scan for tray icons

  try {
    objectCount += SystemTray.getSystemTray().getTrayIcons().length;
  } catch (Throwable e) {
    // ignore
  }
  
  // Scan for JavaFX stages
  
  try {
    objectCount += l((List) call(_getClass("com.sun.javafx.robot.impl.FXRobotHelper"), "getStages"));
  } catch (Throwable _e) {
  }
  
  return objectCount;
}
static int cmp(Number a, Number b) {
  return a == null ? b == null ? 0 : -1 : cmp(a.doubleValue(), b.doubleValue());
}

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

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

static int cmp(Object a, Object b) {
  if (a == null) return b == null ? 0 : -1;
  if (b == null) return 1;
  return ((Comparable) a).compareTo(b);
}
static boolean _inCore() {
  return false;
}
static Rectangle boundsOnScreen(Component c) {
  if (c.getParent() instanceof JViewport
    && c.getParent().getParent() instanceof JScrollPane)
    c = c.getParent().getParent();
  return new Rectangle(c.getLocationOnScreen(), c.getSize());
}
// get purpose 1: access a list/array (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;
}

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;
}

static Class get_dynamicObject = DynamicObject.class;

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

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

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

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

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

static Field get_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}
static List<Class> getClasses(Object[] array) {
  List<Class> l = new ArrayList();
  for (Object o : array) l.add(_getClass(o));
  return l;
}
static Producer<String> javaTokC_onReader(final BufferedReader r) {
  final class X implements Producer<String> {
    StringBuilder buf = new StringBuilder(); // stores from "i"
    char c, d, e = 'x'; // just not '\0'
    
    X() {
      // fill c, d and e
      nc();
      nc();
      nc();
    }
    
    // get next character(s) into c, d and e
    void nc() { try {
 
      c = d;
      d = e;
      if (e == '\0') return;
      int i = r.read();
      e = i < 0 ? '\0' : (char) i;
    
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__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 if (c == '[' && d == '[') {
        do ncSave(); while (c != '\0' && !(c == ']' && d == ']'));
        ncSave(); ncSave();
      } else if (c == '[' && d == '=' && e == '[') {
        do ncSave(); while (c != '\0' && !(c == ']' && d == '=' && e == ']'));
        ncSave(); ncSave(); ncSave();
      } else
        ncSave();
        
      String t = buf.toString();
      buf.setLength(0);
      return t;
    }
  }
  
  return new X();
}

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 (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static int colorToInt(Color c) {
  return c.getRGB() & 0xFFFFFF;
}
static JLabel jLabel(String text) {
  return jlabel(text);
}

static JLabel jLabel() {
  return jlabel();
}
static String joinStrings(String sep, String... strings) {
  StringBuilder buf = new StringBuilder();
  for (String s : strings) if (nempty(s)) {
    if (nempty(buf)) buf.append(sep);
    buf.append(s);
  }
  return str(buf);
}
static Object mc() {
  return getMainClass();
}
// extended over Class.isInstance() to handle primitive types
static boolean isInstanceX(Class type, Object arg) {
  if (type == boolean.class) return arg instanceof Boolean;
  if (type == int.class) return arg instanceof Integer;
  if (type == long.class) return arg instanceof Long;
  if (type == float.class) return arg instanceof Float;
  if (type == short.class) return arg instanceof Short;
  if (type == char.class) return arg instanceof Character;
  if (type == byte.class) return arg instanceof Byte;
  if (type == double.class) return arg instanceof Double;
  return type.isInstance(arg);
}
static List<Object> getMultiPorts() {
  return (List) callOpt(getJavaX(), "getMultiPorts");
}
static JMenuItem jMenuItem(String text, Object r) {
  return jmenuItem(text, r);
}
static String getClassName(Object o) {
  return o == null ? "null" : o.getClass().getName();
}
static Map synchroMap() {
  return synchroHashMap();
}

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

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


  static <A> Set<A> keys(MultiSet<A> ms) {
    return ms.keySet();
  }

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

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

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

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

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

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

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


static <A, B> Collection<B> values(Map<A, B> map) {
  return map == null ? emptyList() : map.values();
}

static JLabel jlabel(String text) {
  final JLabel l = new JLabel(text) {
    @Override
    public void setText(String text) {
      super.setText(text);
      setToolTipText(text);
    }
  };
  componentPopupMenu(l, new Object() { void get(JPopupMenu menu) { try {
  
    addMenuItem(menu, "Copy text to clipboard", new Runnable() { public void run() { try { 
      copyTextToClipboard(l.getText());
    
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "copyTextToClipboard(l.getText());"; }});
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "addMenuItem(menu, \"Copy text to clipboard\", r {\r\n      copyTextToClipboard(l.getText());\r\n    });"; }});
  return l;
}

static JLabel jlabel() {
  return jlabel(" ");
}
static boolean isLetter(char c) {
  return Character.isLetter(c);
}
static void toggleAlwaysOnTop(JFrame frame) {
  frame.setAlwaysOnTop(!frame.isAlwaysOnTop());
}
  public static String loadTextFile(String fileName) {
    return loadTextFile(fileName, null);
  }
  
  public static String loadTextFile(String fileName, String defaultContents) {
    try {
      if (!new File(fileName).exists())
        return defaultContents;
  
      FileInputStream fileInputStream = new FileInputStream(fileName);
      InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8");
      return loadTextFile(inputStreamReader);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
  
  public static String loadTextFile(File fileName) {
      return loadTextFile(fileName, null);
  }

  public static String loadTextFile(File fileName, String defaultContents) {
      return loadTextFile(fileName.getPath(), defaultContents);
  }
  
  public static String loadTextFile(Reader reader) throws IOException {
    StringBuilder builder = new StringBuilder();
    try {
      char[] buffer = new char[1024];
      int n;
      while (-1 != (n = reader.read(buffer)))
        builder.append(buffer, 0, n);
        
    } finally {
      reader.close();
    }
    return builder.toString();
  }
static byte[] loadBinaryPage(String url) { try {
 
  print("Loading " + url);
  return loadBinaryPage(new URL(url).openConnection());

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

static byte[] loadBinaryPage(URLConnection con) { try {
 
  setHeaders(con);
  return loadBinaryPage_noHeaders(con);

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

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

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}



static <A extends Window> A disposeWindowAfter(int delay, final A w) {
  if (w != null)
    swingLater(delay, new Runnable() { public void run() { try { 
      w.dispose();
    
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "w.dispose();"; }});
  return w;
}
static boolean isURL(String s) {
  return s.startsWith("http://") || s.startsWith("https://");
}
static byte[] hexToBytes(String s) {
  int n = l(s) / 2;
  byte[] bytes = new byte[n];
  for (int i = 0; i < n; i++) {
    String hex = substring(s, i*2, i*2+2);
    try {
      bytes[i] = (byte) parseHexByte(hex);
    } catch (Throwable _e) {
      throw fail("Bad hex byte: " + quote(hex) + " at " + i*2 + "/" + l(s));
    }
  }
  return bytes;
}
static boolean allPaused() {
  return ping_pauseAll;
}
static HashMap<Class,Constructor> nuEmptyObject_cache = new HashMap();

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

  return (A) ctr.newInstance();

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__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 JWindow showInTopRightCorner(Component c) {
  JWindow w = new JWindow();
  w.add(c);
  w.pack();
  moveToTopRightCorner(w);
  w.setVisible(true);
  return w;
}
static boolean setOptAllDyn_debug;

static void setOptAllDyn(DynamicObject o, Map<String, Object> fields) {
  if (fields == null) return;
  for (String field : keys(fields)) {
    Object val = fields.get(field);
    boolean has = hasField(o, field);
    if (has)
      setOpt(o, field, val);
    else {
      o.fieldValues.put(field.intern(), val);
      if (setOptAllDyn_debug) print("setOptAllDyn added dyn " + field + " to " + o + " [value: " + val + ", fieldValues = " + systemHashCode(o.fieldValues) + ", " + struct(keys(o.fieldValues)) + "]");
    }
  }
}
static 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 Object mainBot;

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

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

static Class getMainClass() {
  return main.class;
}

static Class getMainClass(Object o) { try {
 
  return (o instanceof Class ? (Class) o : o.getClass()).getClassLoader().loadClass("main");

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static void setHeaders(URLConnection con) throws IOException {
  String computerID = getComputerID();
  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> List<A> subList(List<A> l, int startIndex) {
  return subList(l, startIndex, l(l));
}

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

static String copyTextToClipboard(String text) {
  StringSelection selection = new StringSelection(text);
  Toolkit.getDefaultToolkit().getSystemClipboard().setContents(selection, selection);
  return text;
}
static Boolean isHeadless_cache;

static boolean isHeadless() {
  if (isHeadless_cache != null) return isHeadless_cache;
  if (GraphicsEnvironment.isHeadless()) return isHeadless_cache = true;
  
  // Also check if AWT actually works.
  // If DISPLAY variable is set but no X server up, this will notice.
  
  try {
    callOpt(getClass("javax.swing.SwingUtilities"), "isEventDispatchThread");
    return isHeadless_cache = false;
  } catch (Throwable e) { return isHeadless_cache = true; }
}
static <A extends JComponent> A setToolTipText(A c, Object toolTip) {
  if (c == null) return null;
  c.setToolTipText(str(toolTip));
  return c;
}
static boolean isInteger(String s) {
  if (s == null) return false;
  int n = l(s);
  if (n == 0) return false;
  int i = 0;
  if (s.charAt(0) == '-')
    if (++i >= n) return false;
  while (i < n) {
    char c = s.charAt(i);
    if (c < '0' || c > '9') return false;
    ++i;
  }
  return true;
}
static String formatSnippetID(String id) {
  return "#" + parseSnippetID(id);
}

static String formatSnippetID(long id) {
  return "#" + id;
}
 static String snippetImageURL(String snippetID) {
    long id = parseSnippetID(snippetID);
    String url;
    if (id == 1000010 || id == 1000012)
      url = "http://tinybrain.de:8080/tb/show-blobimage.php?id=" + id;
    else
      url = "http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_" + id
        + "&contentType=image/png";
    return url;
  }
  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 long now_virtualTime;
static long now() {
  return now_virtualTime != 0 ? now_virtualTime : System.currentTimeMillis();
}

static FileOutputStream newFileOutputStream(File path) throws IOException {
  return newFileOutputStream(path.getPath());
}

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

static FileOutputStream newFileOutputStream(String path, boolean append) throws IOException {
  FileOutputStream f = new // Line break for ancient translator
    FileOutputStream(path, append);
  callJavaX("registerIO", f, path, true);
  return f;
}
  public static String unquote(String s) {
    if (s == null) return null;
    if (s.startsWith("[")) {
      int i = 1;
      while (i < s.length() && s.charAt(i) == '=') ++i;
      if (i < s.length() && s.charAt(i) == '[') {
        String m = s.substring(1, i);
        if (s.endsWith("]" + m + "]"))
          return s.substring(i+1, s.length()-i-1);
      }
    }
    
    if (s.startsWith("\"") /*&& s.endsWith("\"")*/ && s.length() > 1) {
      int l = s.endsWith("\"") ? s.length()-1 : s.length();
      StringBuilder sb = new StringBuilder(l-1);
  
      for (int i = 1; i < l; i++) {
        char ch = s.charAt(i);
        if (ch == '\\') {
          char nextChar = (i == l - 1) ? '\\' : s.charAt(i + 1);
          // Octal escape?
          if (nextChar >= '0' && nextChar <= '7') {
              String code = "" + nextChar;
              i++;
              if ((i < l - 1) && s.charAt(i + 1) >= '0'
                      && s.charAt(i + 1) <= '7') {
                  code += s.charAt(i + 1);
                  i++;
                  if ((i < l - 1) && s.charAt(i + 1) >= '0'
                          && s.charAt(i + 1) <= '7') {
                      code += s.charAt(i + 1);
                      i++;
                  }
              }
              sb.append((char) Integer.parseInt(code, 8));
              continue;
          }
          switch (nextChar) {
          case '\\':
              ch = '\\';
              break;
          case 'b':
              ch = '\b';
              break;
          case 'f':
              ch = '\f';
              break;
          case 'n':
              ch = '\n';
              break;
          case 'r':
              ch = '\r';
              break;
          case 't':
              ch = '\t';
              break;
          case '\"':
              ch = '\"';
              break;
          case '\'':
              ch = '\'';
              break;
          // Hex Unicode: u????
          case 'u':
              if (i >= l - 5) {
                  ch = 'u';
                  break;
              }
              int code = Integer.parseInt(
                      "" + s.charAt(i + 2) + s.charAt(i + 3)
                         + s.charAt(i + 4) + s.charAt(i + 5), 16);
              sb.append(Character.toChars(code));
              i += 5;
              continue;
          default:
            ch = nextChar; // added by Stefan
          }
          i++;
        }
        sb.append(ch);
      }
      return sb.toString();   
    }
    
    return s; // not quoted - return original
  }
static 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 int parseInt(String s) {
  return empty(s) ? 0 : Integer.parseInt(s);
}
static List<String> allMethodNames(Object o) {
  Class c = _getClass(o);
  TreeSet<String> names = new TreeSet();
  while (c != null) {
    for (Method m : c.getDeclaredMethods())
      names.add(m.getName());
    c = c.getSuperclass();
  }
  return asList(names);
}
static Map synchroHashMap() {
  return Collections.synchronizedMap(new HashMap());
}

static <A> A nuStubInnerObject(Class<A> c) { try {
 
  Class outerType = getOuterClass(c);
  Constructor m = c.getDeclaredConstructor(outerType);
  m.setAccessible(true);
  return (A) m.newInstance(new Object[] {null});

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static boolean[] boolArrayFromBytes(byte[] a, int n) {
  boolean[] b = new boolean[n];
  int m = min(n, l(a)*8);
  for (int i = 0; i < m; i++)
    b[i] = (a[i/8] & 1 << (i & 7)) != 0;
  return b;
}
static boolean substanceLookAndFeelEnabled() {
  return startsWith(getLookAndFeel(), "org.pushingpixels.");
}
static boolean odd(int i) {
  return (i & 1) != 0;
}
public static void copyFile(File src, File dest) { try {
 
  mkdirsForFile(dest);
  FileInputStream inputStream = new FileInputStream(src.getPath());
  FileOutputStream outputStream = newFileOutputStream(dest.getPath());
  try {
    copyStream(inputStream, outputStream);
    inputStream.close();
  } finally {
    outputStream.close();
  }

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static float parseFloat(String s) {
  return Float.parseFloat(s);
}

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

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

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

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

static String addSuffix(String s, String suffix) {
  return s.endsWith(suffix) ? s : s + suffix;
}
static BufferedImage shootWindow(Window w) {
  w.toFront();
  sleep(50);
  return shootScreen2(w.getBounds());
}
static File getCacheProgramDir() {
  return getCacheProgramDir(getProgramID());
}

static File getCacheProgramDir(String snippetID) {
  return new File(userHome(), "JavaX-Caches/" + formatSnippetIDOpt(snippetID));
}
  public static boolean isSnippetID(String s) {
    try {
      parseSnippetID(s);
      return true;
    } catch (RuntimeException e) {
      return false;
    }
  }
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 boolean isLongConstant(String s) {
  if (!s.endsWith("L")) return false;
  s = s.substring(0, l(s)-1);
  return isInteger(s);
}
static String internIfLongerThan(String s, int l) {
  return s == null ? null : l(s) >= l ? s.intern() : s;
}
static void pcallOpt_noArgs(Object o, String method) {
  try { /* pcall 1*/  callOpt_noArgs(o, method); /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
}
static int iround(double d) {
  return (int) Math.round(d);
}
static boolean sameSnippetID(String a, String b) {
  return a != null && b != null && parseSnippetID(a) == parseSnippetID(b);
}
static List filter(Iterable c, Object pred) {
  List x = new ArrayList();
  for (Object o : c)
    if (isTrue(callF(pred, o)))
      x.add(o);
  return x;
}

static List filter(Object pred, Iterable c) {
  return filter(c, pred);
}

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 String getSnippetTitle(String id) { try {
 
  if (!isSnippetID(id)) return "?";
  return trim(loadPageSilently(new URL("http://tinybrain.de:8080/tb-int/getfield.php?id=" + parseSnippetID(id) + "&field=title" + standardCredentials())));

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

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

static void updateLookAndFeelOnAllWindows() {
  for (Window window : Window.getWindows())
    SwingUtilities.updateComponentTreeUI(window);
  renewConsoleFrame();
}
// 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 RuntimeException asRuntimeException(Throwable t) {
  return t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
}
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 void printStructure(String prefix, Object o) {
  if (endsWithLetter(prefix)) prefix += ": ";
  print(prefix + structure(o));
}

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

static boolean eqOneOf(Object o, Object... l) {
  for (Object x : l) if (eq(o, x)) return true; return false;
}
static boolean booleanValue(Object o) {
  return eq(true, o);
}
static File javaxDataDir_dir; // can be set to work on different base dir

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

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

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

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

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

static List<String> indent(String indent, List<String> lines) {
  List<String> l = new ArrayList();
  for (String s : lines)
    l.add(indent + s);
  return l;
}
static double parseDouble(String s) {
  return Double.parseDouble(s);
}
static <A> A println(A a) {
  return print(a);
}
static ImageIcon imageIcon(String imageID) { try {
 
  return new ImageIcon(loadBinarySnippet(imageID).toURI().toURL());

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

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


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

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

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

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

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 String dropSuffix(String suffix, String s) {
  return s.endsWith(suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
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 boolean startsWith(String a, String b) {
  return a != null && a.startsWith(b);
}

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


static String trim(String s) { return s == null ? null : s.trim(); }
static String trim(StringBuilder buf) { return buf.toString().trim(); }
static String trim(StringBuffer buf) { return buf.toString().trim(); }
static String standardCredentials() {
  String user = standardCredentialsUser();
  String pass = standardCredentialsPass();
  if (nempty(user) && nempty(pass))
    return "&_user=" + urlencode(user) + "&_pass=" + urlencode(pass);
  return "";
}
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 {
 
  print("Sleeping.");
  synchronized(main.class) { main.class.wait(); }

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static boolean hasField(Object o, String field) {
  return findField2(o, field) != null;
}
static void renewConsoleFrame() {
  setConsoleFrame(renewFrame(consoleFrame()));
}
static int systemHashCode(Object o) {
  return identityHashCode(o);
}
public static File mkdirsForFile(File file) {
  File dir = file.getParentFile();
  if (dir != null) // is null if file is in current dir
    dir.mkdirs();
  return file;
}

static Object callJavaX(String method, Object... args) {
  return callOpt(getJavaX(), method, args);
}
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 (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static String struct(Object o) {
  return structure(o);
}
static void swingLater(long delay, final Object r) {
  javax.swing.Timer timer = new javax.swing.Timer(toInt(delay), actionListener(r));
  timer.setRepeats(false);
  timer.start();
}

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

static Class getOuterClass(Class c) { try {
 
  String s = c.getName();
  int i = s.lastIndexOf('$');
  return Class.forName(substring(s, 0, i));

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static String fsI(String id) {
  return formatSnippetID(id);
}

static String fsI(long id) {
  return formatSnippetID(id);
}
static String getComputerID() { try {
 
  return computerID();

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  static ThreadLocal<String> loadPage_charset = new ThreadLocal();
  static boolean loadPage_allowGzip = true, loadPage_debug;
  static boolean loadPage_anonymous; // don't send computer ID
  static int loadPage_verboseness = 100000;
  static int loadPage_retries = 60; // seconds

  public static String loadPageSilently(String url) {
    try {
      return loadPageSilently(new URL(loadPage_preprocess(url)));
    } catch (IOException e) { throw new RuntimeException(e); }
  }

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

  static String loadPage_preprocess(String url) {  
    if (url.startsWith("tb/"))
      url = "tinybrain.de:8080/" + url;
    if (url.indexOf("://") < 0)
      url = "http://" + url;
    return url;
  }
  
  public static String loadPage(String url) {
    try {
      url = loadPage_preprocess(url);
      print("Loading: " + hideCredentials(url));
      return loadPageSilently(new URL(url));
    } catch (IOException e) { throw new RuntimeException(e); }
  }
  
  public static String loadPage(URL url) {
    print("Loading: " + hideCredentials(url.toExternalForm()));
    return loadPageSilently(url);
  }

  public static String loadPage(URLConnection con, URL url) throws IOException {
    try {
      if (!loadPage_anonymous)
        setHeaders(con);
      if (loadPage_allowGzip)
        con.setRequestProperty("Accept-Encoding", "gzip");
    } catch (Throwable e) {} // fails if within doPost
    String contentType = con.getContentType();
    if (contentType == null)
      throw new IOException("Page could not be read: " + url);
    //print("Content-Type: " + contentType);
    String charset = loadPage_charset == null ? null : loadPage_charset.get();
    if (charset == null) charset = loadPage_guessCharset(contentType);
    
    InputStream in = con.getInputStream();
    if ("gzip".equals(con.getContentEncoding())) {
      if (loadPage_debug)
        print("loadPage: Using gzip.");
      in = new GZIPInputStream(in);
    }
    Reader r = new InputStreamReader(in, charset);
    
    StringBuilder buf = new StringBuilder();
    int n = 0;
    while (true) {
      int ch = r.read();
      if (ch < 0)
        break;
      buf.append((char) ch);
      ++n;
      if ((n % loadPage_verboseness) == 0) print("  " + n + " chars read");
    }
    return buf.toString();
  }
  
  static String loadPage_guessCharset(String contentType) {
    Pattern p = Pattern.compile("text/[a-z]+;\\s+charset=([^\\s]+)\\s*");
    Matcher m = p.matcher(contentType);
    String match = m.matches() ? m.group(1) : null;
    if (loadPage_debug)
      print("loadPage: contentType=" + contentType + ", match: " + match);
    /* If Content-Type doesn't match this pre-conception, choose default and hope for the best. */
    return or(match, "ISO-8859-1");
  }

static boolean shootScreen_useScrot = true; // Use program "scrot" to make full-screen screenshots (on Linux); prevents the bug https://bugs.openjdk.java.net/browse/JDK-7168628

static BufferedImage shootScreen2() {
  return shootScreen2(screenRectangle());
}

static BufferedImage shootScreen2(Rectangle area) { try {
 
  if (shootScreen_useScrot && eq(area, screenRectangle())) {
    if (!isOnPATH("scrot")) shootScreen2_fallback();
    if (shootScreen_useScrot) {
      File f = prepareProgramFile(randomID(12) + ".png");
      try {
        String cmd = "scrot " + bashQuote(f);
        String out = backtick(cmd);
        if (f.exists())
          return loadPNG(f);
        shootScreen2_fallback();
      } catch (Throwable e) {
        print(e);
        shootScreen2_fallback();
      } finally {
        f.delete();
      }
    }
  }
  return new Robot().createScreenCapture(area);

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

static BufferedImage shootScreen2(Rect area) {
  return shootScreen2(area.getRectangle());
}

static BufferedImage shootScreen2(int x, int y, int w, int h) {
  return shootScreen2(new Rectangle(x, y, w, h));
}

// internal
static void shootScreen2_fallback() {
  if (shootScreen_useScrot) {
    print("Scrot failed. Reverting to internal screenshots.");
    shootScreen_useScrot = false;
  }
}
static String getLookAndFeel() {
  return getClassName(UIManager.getLookAndFeel());
}
static WeakHashMap<Class, HashMap<String, Method>> callOpt_noArgs_cache = new WeakHashMap();

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

  Method m = map.get(method);
  return m != null ? m.invoke(o) : null;

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__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 String formatSnippetIDOpt(String s) {
  return isSnippetID(s) ? formatSnippetID(s) : s;
}
static int parseHexByte(String s) {
  return Integer.parseInt(s, 16);
}
static File userDir() {
  return new File(userHome());
}

static File userDir(String path) {
  return new File(userHome(), path);
}


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

static String bashQuote(File f) {
  return bashQuote(f.getAbsolutePath());
}
static String hideCredentials(String url) {
  return url.replaceAll("&_pass=[^&]*", "&_pass=<hidden>");
}
static String exceptionToStringShort(Throwable e) {
  e = getInnerException(e);
  String msg = unnull(e.getMessage());
  if (msg.indexOf("Error") < 0 && msg.indexOf("Exception") < 0)
    return baseClassName(e) + ": " + msg;
  else
    return msg;
}
static File prepareProgramFile(String name) {
  return mkdirsForFile(getProgramFile(name));
}

static File prepareProgramFile(String progID, String name) {
  return mkdirsForFile(getProgramFile(progID, 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 __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "callF(o)"; }};
}
static JFrame renewFrame(final JFrame frame) {
  if (frame == null) return null;
  return (JFrame) swing(new Object() { Object get() { try {
  
    Container content = frame.getContentPane();
    JFrame frame2 = makeFrame(frame.getTitle());
    frame2.setBounds(frame.getBounds());
    try { /* pcall 1*/  frame2.setIconImages(frame.getIconImages()); /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
    frame2.setDefaultCloseOperation(frame.getDefaultCloseOperation());
    for (WindowListener wl : frame.getWindowListeners())
      frame2.addWindowListener(wl);
    frame.setContentPane(new JPanel());
    frame2.setContentPane(content);
    frame2.setVisible(true);
    frame.dispose();
    return frame2;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "Container content = frame.getContentPane();\r\n    JFrame frame2 = makeFrame(frame.getTitle());\r\n    frame2.setBounds(frame.getBounds());\r\n    pcall { frame2.setIconImages(frame.getIconImages()); }\r\n    frame2.setDefaultCloseOperation(frame.getDefaultCloseOperation());\r\n    for (WindowListener wl : frame.getWindowListeners())\r\n      frame2.addWindowListener(wl);\r\n    frame.setContentPane(new JPanel);\r\n    frame2.setContentPane(content);\r\n    frame2.setVisible(true);\r\n    frame.dispose();\r\n    ret frame2;"; }});
}
static String _computerID;
public static String computerID() { try {
 
  if (_computerID == null) {
    File file = new File(userHome(), ".tinybrain/computer-id");
    _computerID = loadTextFile(file.getPath(), null);
    if (_computerID == null) {
      _computerID = makeRandomID(12);
      saveTextFile(file.getPath(), _computerID);
    }
  }
  return _computerID;

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static URLConnection openConnection(URL url) { try {
 
  ping();
  return url.openConnection();

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static Field findField2(Object o, String field) {
  if (o instanceof Class) return findField2_findStaticField((Class) o, field);
  return findField2_findField(o.getClass(), field);
}

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

static Field findField2_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static String urlencode(String x) {
  try {
    return URLEncoder.encode(unnull(x), "UTF-8");
  } catch (UnsupportedEncodingException e) { throw new RuntimeException(e); }
}
static int identityHashCode(Object o) {
  return System.identityHashCode(o);
}
static String standardCredentialsUser() {
  return trim(loadTextFile(new File(userHome(), ".tinybrain/username")));
}
static void setConsoleFrame(JFrame frame) {
   setOpt(get(getJavaX(), "console"), "frame", frame);
}
static BufferedImage loadPNG(File file) {
  return loadBufferedImage(file);
}
static final boolean loadPageThroughProxy_enabled = false;

static String loadPageThroughProxy(String url) {
  return null;
}
static int backtick_exitValue;
static boolean backtick_verbose;
static ThreadLocal<File> backtick_scriptFile = new ThreadLocal();
static boolean backtick_interruptable = true; // Great trick, thanks to Tim Bunce @ http://stackoverflow.com/questions/12856620/how-to-handle-signals-in-bash-during-synchronous-execution

static String backtick(String cmd) { try {
 
  File outFile = File.createTempFile("_backtick", "");
  backtickToFile(cmd, outFile);
  String result = loadTextFile(outFile.getPath(), "");
  if (backtick_verbose)
    print("[[\n" + result + "]]");
  return result;

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

static Process backtickToFile(String cmd, File outFile) { try {
 
  try {
    Process process = backtickToFile_noWait(cmd, outFile);
    process.waitFor();
    backtick_exitValue = process.exitValue();
    if (backtick_verbose)
      System.out.println("Process return code: " + backtick_exitValue);
    return process;
  } finally {
    deleteFile(backtick_scriptFile.get());
    backtick_scriptFile.set(null);
  }

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

static Process backtickToFile_noWait(String cmd, File outFile) { try {
 
  File scriptFile = File.createTempFile("_backtick", isWindows() ? ".bat" : "");
  backtick_scriptFile.set(scriptFile);
  if (backtick_verbose)
    print("backtick: scriptFile " + f2s(scriptFile));

  String command = cmd + " >" + bashQuote(outFile.getPath()) + " 2>&1";
  if (backtick_interruptable && !isWindows()) command = fixNewLines("\r\ninterruptable() {\r\n\r\n    # handle options\r\n    local setsid=\"\"\r\n    local debug=false\r\n    while true; do\r\n        case \"${1:-}\" in\r\n            --killall)      setsid=setsid; shift ;;\r\n            --debug)        debug=true; shift ;;\r\n            --*)            echo \"Invalid option: $1\" 1>&2; exit 1;;\r\n            *)              break;; # no more options\r\n        esac\r\n    done\r\n\r\n    # start the specified command\r\n    $setsid \"$@\" &\r\n    local child_pid=$!\r\n\r\n    # arrange to propagate a signal to the child process\r\n    trap '\r\n        exec 1>&2\r\n        set +e\r\n        trap \"\" SIGPIPE # ensure a possible sigpipe from the echo does not prevent the kill\r\n        echo \"${BASH_SOURCE[0]} caught SIGTERM while executing $* (pid $child_pid), sending SIGTERM to it\"\r\n        # (race) child may have exited in which case kill will report an error\r\n        # if setsid is used then prefix the pid with a \"-\" to indicate that the signal\r\n        # should be sent to the entire process group\r\n        kill ${setsid:+-}$child_pid\r\n        exit 143\r\n    ' SIGTERM\r\n    # ensure that the trap doesn't persist after we return\r\n    trap 'trap - SIGTERM' RETURN\r\n\r\n    $debug && echo \"interruptable wait (child $child_pid, self $$) for: $*\"\r\n\r\n    # An error status from the child process will trigger an exception (via set -e)\r\n    # here unless the caller is checking the return status\r\n    wait $child_pid # last command, so status of waited for command is returned\r\n}\r\n\r\ninterruptable ") + command;
  //Log.info("[Backtick] " + command);
  if (backtick_verbose)
    print("backtick: command " + command);
  saveTextFile(scriptFile.getPath(), command);
  String[] command2;
  if (isWindows())
    command2 = new String[] { scriptFile.getPath() };
  else
    command2 = new String[] { "/bin/bash", scriptFile.getPath() };
  if (backtick_verbose)
    print("backtick: command2 " + structure(command2));
  return Runtime.getRuntime().exec(command2);

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

static boolean isOnPATH(String cmd) {
  String path = System.getenv("PATH");
  List<String> dirs = splitAt(path, File.pathSeparator);
  String c = isWindows() ? cmd + ".exe" : cmd;
  for (String dir : dirs)
    if (new File(dir, c).isFile())
      return true;
  return false;
}
static Rectangle screenRectangle() {
  return new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
}

static void sleepSeconds(double s) {
  if (s > 0) sleep(round(s*1000));
}
static <A> A or(A a, A b) {
  return a != null ? a : b;
}
static int randomID_defaultLength = 12;

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

static String randomID() {
  return randomID(randomID_defaultLength);
}
static String standardCredentialsPass() {
  return trim(loadTextFile(new File(userHome(), ".tinybrain/userpass")));
}


public static boolean isWindows() {
  return System.getProperty("os.name").contains("Windows");
}
// TODO: returns empty first, but not empty last
static List<String> splitAt(String s, String splitter) {
  List<String> parts = new ArrayList();
  int i = 0;
  if (s != null)
    while (i < l(s)) {
      int j = indexOf(s, splitter, i);
      if (j < 0) j = l(s);
      parts.add(substring(s, i, j));
      i = j+l(splitter);
    }
  return parts;
}
static Throwable getInnerException(Throwable e) {
  while (e.getCause() != null)
    e = e.getCause();
  return e;
}
static boolean deleteFile(File file) {
  return file != null && file.delete();
}
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 String makeRandomID(int length) {
  Random random = new Random();
  char[] id = new char[length];
  for (int i = 0; i < id.length; i++)
    id[i] = (char) ((int) 'a' + random.nextInt(26));
  return new String(id);
}
static String baseClassName(String className) {
  return substring(className, className.lastIndexOf('.')+1);
}

static String baseClassName(Object o) {
  return baseClassName(getClassName(o));
}
static String f2s(File f) {
  return f == null ? null : f.getAbsolutePath();
}
static long round(double d) {
  return Math.round(d);
}


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

static File getProgramDir(String snippetID) {
  return programDir(snippetID);
}
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, 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, 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 class Image2B {
  int w, h;
  byte[] pixels;
  
  Image2B() {} // for persistence
  
  Image2B(RGBImage img) {
    w = img.getWidth();
    h = img.getHeight();
    pixels = new byte[(w*h+7)/8];
    for (int y = 0; y < h; y++) for (int x = 0; x < w; x++)
      if (img.getPixel(x, y).getBrightness() >= 0.5f) {
        int i = y*w+x;
        pixels[i/8] |= 1 << (i & 7);
      }
  }
  
  Image2B(BWImage img) {
    w = img.getWidth();
    h = img.getHeight();
    pixels = new byte[(w*h+7)/8];
    for (int y = 0; y < h; y++) for (int x = 0; x < w; x++)
      if (img.getPixel(x, y) >= 0.5f) {
        int i = y*w+x;
        pixels[i/8] |= 1 << (i & 7);
      }
  }
  
  RGBImage toRGB() {
    RGBImage img = new RGBImage(w, h, Color.black);
    for (int y = 0; y < h; y++) for (int x = 0; x < w; x++) {
      int i = y*w+x;
      if ((pixels[i/8] & (1 << (i & 7))) != 0)
        img.setPixel(x, y, Color.white);
    }
    return img;
  }
  
  BWImage toBW() {
    BWImage img = new BWImage(w, h, 0f);
    for (int y = 0; y < h; y++) for (int x = 0; x < w; x++) {
      int i = y*w+x;
      if ((pixels[i/8] & (1 << (i & 7))) != 0)
        img.setPixel(x, y, 1f);
    }
    return img;
  }
  
  BufferedImage getBufferedImage() { return toBW().getBufferedImage(); }
  
  boolean getPixel(int x, int y) {
    int i = y*w+x;
    return (pixels[i/8] & (1 << (i & 7))) != 0;
  }
  
  int w() { return w; }
  int h() { return h; }
}

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

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 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 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;}
  
  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 ImageSurface extends Surface {
  private BufferedImage image;
  private double zoomX = 1, zoomY = 1;
  private Rectangle selection;
  List tools = new ArrayList();
  Object overlay; // voidfunc(Graphics2D)
  Runnable onSelectionChange;
  static boolean verbose;

  public ImageSurface() {
    this(dummyImage());
  }
  
  static BufferedImage dummyImage() {
    return new RGBImage(1, 1, new int[] { 0xFFFFFF }).getBufferedImage();
  }

  public ImageSurface(RGBImage image) {
    this(image != null ? image.getBufferedImage() : dummyImage());
  }

  public ImageSurface(BufferedImage image) {
    setImage(image);
    clearSurface = false;

    componentPopupMenu(this, new Object() { void get(JPopupMenu menu) { try {
  
      Point p = pointFromEvent(componentPopupMenu_mouseEvent.get()).getPoint();
      fillPopupMenu(menu, p);
     
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "Point p = pointFromEvent(componentPopupMenu_mouseEvent.get()).getPoint();\n      fillPopupMenu(menu, p);"; }});
    
    new ImageSurfaceSelector(this);
    
    jHandleFileDrop(this, new Object() { void get(File f) { try {
   setImage(loadBufferedImage(f)) ; 
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__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) {
    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(2.0);
        centerPoint(point);
      }
    });
    menu.add(miZoomIn);

    JMenuItem miZoomOut = new JMenuItem("Zoom out");
    miZoomOut.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent evt) {
        zoomOut(2.0);
        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 __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__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 __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "saveImage()"; }});
    addMenuItem(menu, "Upload image...", new Runnable() { public void run() { try {  uploadImage() ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "uploadImage()"; }});
    addMenuItem(menu, "Copy image to clipboard", new Runnable() { public void run() { try { 
      copyImageToClipboard(getImage());
    
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "copyImageToClipboard(getImage());"; }});
    addMenuItem(menu, "Paste image from clipboard", new Runnable() { public void run() { try { 
      loadFromClipboard();
    
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "loadFromClipboard();"; }});
    if (selection != null)
      addMenuItem(menu, "Crop", new Runnable() { public void run() { try {  crop() ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "crop()"; }});
  }
  
  void crop() {
    if (selection == null) return;
    BufferedImage img = clipBufferedImage(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) main.print("render");
    g.setColor(Color.white);
    if (image == null)
      g.fillRect(0, 0, w, h);
    else {
      int iw = getZoomedWidth(), ih = getZoomedHeight();
      g.drawImage(image, 0, 0, iw, ih, null);
      g.fillRect(iw, 0, w-iw, h);
      g.fillRect(0, ih, iw, h-ih);
    }

    if (verbose) main.print("render overlay");
    if (overlay != null) pcallF(overlay, g);

    if (verbose) main.print("render selection");
    if (selection != null) {
      // 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) {
    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 void setZoom(double zoom) {
    setZoom(zoom, zoom);
  }

  public void setZoom(double zoomX, double zoomY) {
    this.zoomX = zoomX;
    this.zoomY = zoomY;
    revalidate();
    repaint();
  }

  public Dimension getMinimumSize() {
    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(RGBImage image) {
    setImage(image.getBufferedImage());
  }

  public void setImage(BufferedImage image) {
    this.image = image != null ? image : dummyImage();
    revalidate();
    repaint();
  }

  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) {
    //_print("centerPoint " + p);
    if (!(getParent() instanceof JViewport))
      return;
      
    p = new Point((int) (p.x*getZoomX()), (int) (p.y*getZoomY()));
    final JViewport viewport = (JViewport) ( getParent());
    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);
    
    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 __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__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));
  }
  
  void uploadImage() {
    final BufferedImage img = getImage();
    final JTextField tf = new JTextField();
    showFormTitled("Upload Image",
      "Image title (optional)", tf, new Runnable() { public void run() { try { 
        messageBox("Image uploaded as " + main.uploadImage(tf.getText().trim(), toPNG(img)))
      ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "messageBox(\"Image uploaded as \" + main.uploadImage(tf.getText().trim(), toPNG(img)))"; }});
  }
  
  void showFullScreen() {
    showFullScreenImageSurface(getImage());
  }
  
  void zoomIn(double f) { setZoom(getZoomX()*f, getZoomY()*f); }
  void zoomOut(double f) { setZoom(getZoomX()/f, getZoomY()/f); }
}

abstract static class Surface extends JPanel {


  public Object AntiAlias = RenderingHints.VALUE_ANTIALIAS_ON;
  public Object Rendering = RenderingHints.VALUE_RENDER_SPEED;
  public AlphaComposite composite;
  public Paint texture;
  public BufferedImage bimg;
  public int imageType;
  public String name;
  public boolean clearSurface = true;
  // Demos using animated gif's that implement ImageObserver set dontThread.
  public boolean dontThread;

  protected long sleepAmount = 50; // max20 fps

  private long orig, start, frame;
  private Toolkit toolkit;
  private boolean perfMonitor, outputPerf;
  private int biw, bih;
  private boolean clearOnce;
  private boolean toBeInitialized = true;


  public Surface() {
    setDoubleBuffered(false);
    toolkit = getToolkit();
    name = this.getClass().getName();
    name = name.substring(name.indexOf(".", 7)+1);
    setImageType(0);

    // To launch an individual demo with the performance str output  :
    //    java -Djava2demo.perf= -cp Java2Demo.jar demos.Clipping.ClipAnim
    try {
      if (System.getProperty("java2demo.perf") != null) {
        perfMonitor = outputPerf = true;
      }
    } catch (Exception ex) { }
  }


    /*protected Image getImage(String name) {
        return DemoImages.getImage(name, this);
    }


    protected Font getFont(String name) {
        return DemoFonts.getFont(name);
    }*/


  public int getImageType() {
    return imageType;
  }


  public void setImageType(int imgType) {
    if (imgType == 0) {
      imageType = 1;
    } else {
      imageType = imgType;
    }
    bimg = null;
  }


  public void setAntiAlias(boolean aa) {
    AntiAlias = aa
      ? RenderingHints.VALUE_ANTIALIAS_ON
      : RenderingHints.VALUE_ANTIALIAS_OFF;
  }


  public void setRendering(boolean rd) {
    Rendering = rd
      ? RenderingHints.VALUE_RENDER_QUALITY
      : RenderingHints.VALUE_RENDER_SPEED;
  }


  public void setTexture(Object obj) {
    if (obj instanceof GradientPaint) {
      texture = new GradientPaint(0, 0, Color.white,
        getSize().width*2, 0, Color.green);
    } else {
      texture = (Paint) obj;
    }
  }


  public void setComposite(boolean cp) {
    composite = cp
      ? AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f)
      : null;
  }


  public void setMonitor(boolean pm) {
    perfMonitor = pm;
  }


  public void setSleepAmount(long amount) {
    sleepAmount = amount;
  }


  public long getSleepAmount() {
    return sleepAmount;
  }


  public BufferedImage createBufferedImage(Graphics2D g2,
                                           int w,
                                           int h,
                                           int imgType) {
    BufferedImage bi = null;
    if (imgType == 0) {
      bi = (BufferedImage) g2.getDeviceConfiguration().
        createCompatibleImage(w, h);
    } else if (imgType > 0 && imgType < 14) {
      bi = new BufferedImage(w, h, imgType);
    } else if (imgType == 14) {
      bi = createBinaryImage(w, h, 2);
    } else if (imgType == 15) {
      bi = createBinaryImage(w, h, 4);
    } else if (imgType == 16) {
      bi = createSGISurface(w, h, 32);
    } else if (imgType == 17) {
      bi = createSGISurface(w, h, 16);
    }
    biw = w;
    bih = h;
    return bi;
  }


  // Lookup tables for BYTE_BINARY 1, 2 and 4 bits.
  static byte[] lut1Arr = new byte[] {0, (byte)255 };
  static byte[] lut2Arr = new byte[] {0, (byte)85, (byte)170, (byte)255};
  static byte[] lut4Arr = new byte[] {0, (byte)17, (byte)34, (byte)51,
    (byte)68, (byte)85,(byte) 102, (byte)119,
    (byte)136, (byte)153, (byte)170, (byte)187,
    (byte)204, (byte)221, (byte)238, (byte)255};


  private BufferedImage createBinaryImage(int w, int h, int pixelBits) {
    int bytesPerRow = w * pixelBits / 8;
    if (w * pixelBits % 8 != 0) {
      bytesPerRow++;
    }
    byte[] imageData = new byte[h * bytesPerRow];
    IndexColorModel cm = null;
    switch (pixelBits) {
      case 1:
        cm = new IndexColorModel(pixelBits, lut1Arr.length,
          lut1Arr, lut1Arr, lut1Arr);
        break;
      case 2:
        cm = new IndexColorModel(pixelBits, lut2Arr.length,
          lut2Arr, lut2Arr, lut2Arr);
        break;
      case 4:
        cm = new IndexColorModel(pixelBits, lut4Arr.length,
          lut4Arr, lut4Arr, lut4Arr);
        break;
      default:
      {new Exception("Invalid # of bit per pixel").printStackTrace();}
    }

    DataBuffer db = new DataBufferByte(imageData, imageData.length);
    WritableRaster r = Raster.createPackedRaster(db, w, h, pixelBits, null);
    return new BufferedImage(cm, r, false, null);
  }

  private BufferedImage createSGISurface(int w, int h, int pixelBits) {
    int rMask32 = 0xFF000000;
    int rMask16 = 0xF800;
    int gMask32 = 0x00FF0000;
    int gMask16 = 0x07C0;
    int bMask32 = 0x0000FF00;
    int bMask16 = 0x003E;

    DirectColorModel dcm = null;
    DataBuffer db = null;
    WritableRaster wr = null;
    switch (pixelBits) {
      case 16:
        short[] imageDataUShort = new short[w * h];
        dcm = new DirectColorModel(16, rMask16, gMask16, bMask16);
        db = new DataBufferUShort(imageDataUShort, imageDataUShort.length);
        wr = Raster.createPackedRaster(db, w, h, w,
          new int[] {rMask16, gMask16, bMask16},
          null);
        break;
      case 32:
        int[] imageDataInt = new int[w * h];
        dcm = new DirectColorModel(32, rMask32, gMask32, bMask32);
        db = new DataBufferInt(imageDataInt, imageDataInt.length);
        wr = Raster.createPackedRaster(db, w, h, w,
          new int[] {rMask32, gMask32, bMask32},
          null);
        break;
      default:
      {new Exception("Invalid # of bit per pixel").printStackTrace();}
    }

    return new BufferedImage(dcm, wr, false, null);
  }

  public Graphics2D createGraphics2D(int width,
                                     int height,
                                     BufferedImage bi,
                                     Graphics g) {

    Graphics2D g2 = null;

    if (bi != null) {
      g2 = bi.createGraphics();
    } else {
      g2 = (Graphics2D) g;
    }

    g2.setBackground(getBackground());
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, AntiAlias);
    g2.setRenderingHint(RenderingHints.KEY_RENDERING, Rendering);

    if (clearSurface || clearOnce) {
      g2.clearRect(0, 0, width, height);
      clearOnce = false;
    }

    if (texture != null) {
      // set composite to opaque for texture fills
      g2.setComposite(AlphaComposite.SrcOver);
      g2.setPaint(texture);
      g2.fillRect(0, 0, width, height);
    }

    if (composite != null) {
      g2.setComposite(composite);
    }

    return g2;
  }

  public abstract void render(int w, int h, Graphics2D g);


  /**
   * It's possible to turn off double-buffering for just the repaint
   * calls invoked directly on the non double buffered component.
   * This can be done by overriding paintImmediately() (which is called
   * as a result of repaint) and getting the current RepaintManager and
   * turning off double buffering in the RepaintManager before calling
   * super.paintImmediately(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();

    if (imageType == 1)
      bimg = null;
    else if (bimg == null || biw != d.width || bih != d.height) {
      bimg = createBufferedImage((Graphics2D)g,
        d.width, d.height, imageType-2);
      clearOnce = true;
      toBeInitialized = true;
    }

    if (toBeInitialized) {
      toBeInitialized = false;
      startClock();
    }

    Graphics2D g2 = createGraphics2D(d.width, d.height, bimg, g);
    render(d.width, d.height, g2);
    g2.dispose();

    if (bimg != null)  {
      g.drawImage(bimg, 0, 0, null);
      toolkit.sync();
    }

  }


  public void startClock() {
    orig = System.currentTimeMillis();
    start = orig;
    frame = 0;
  }

  private static final int REPORTFRAMES = 30;


  public static void setAlpha(Graphics2D g, float alpha) {
    g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
  }
}


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

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

static class CenteredLine extends JPanel {
  public CenteredLine(Component... components) {
    setLayout(LetterLayout.centeredRow());
    for (Component component : components)
      add(component);
  }

  public void add(String text) {
    add(new JLabel(text));
  }
}

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);
  }
}


static class BWImage {
  private int width, height;
  private BWImageSimpleStorage storage;

  // color returned when getPixel is called with a position outside the actual image
  private float borderColor = 0.0f;
  
  // for unstructure()
  BWImage() {}

  // BLACK! [Inefficient...]
  public BWImage(int width, int height) {
    this.width = width;
    this.height = height;
    byte[] bytePixels = new byte[width*height];
    storage = makeStorage(width, height, bytePixels);
  }

  public BWImage(int width, int height, float[] pixels) {
    this.width = width;
    this.height = height;
    byte[] bytePixels = new byte[pixels.length];
    for (int i = 0; i < pixels.length; i++)
      bytePixels[i] = toByte(pixels[i]);
    storage = makeStorage(width, height, bytePixels);
  }

  private BWImageSimpleStorage makeStorage(int width, int height, byte[] bytePixels) {
    return new BWImageSimpleStorage(width, height, bytePixels);
  }

  public BWImage(int width, int height, byte[] pixels) {
    this.height = height;
    this.width = width;
    storage = makeStorage(width, height, pixels);
  }

  public BWImage(BWImage image) {
    width = image.getWidth();
    height = image.getHeight();
    byte[] bytePixels = new byte[width*height];
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++)
        bytePixels[y*width+x] = image.getByte(x, y);
    storage = makeStorage(width, height, bytePixels);
  }

  public BWImage(RGBImage image) {
    width = image.getWidth();
    height = image.getHeight();
    byte[] result = new byte[height*width];
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++) {
        RGB rgb = image.getRGB(x, y);
        result[y*width+x] = BWImage.toByte(rgb.getBrightness());
      }
    storage = makeStorage(width, height, result);
  }

  /*public BWImage(BufferedImage image) {
    this(new RGBImage(image));
  }*/

  BWImage(BufferedImage image) { try {
 
 width = image.getWidth();
    height = image.getHeight();
    int[] pixels = new int[width*height];
    byte[] bytePixels = new byte[width*height];
    PixelGrabber pixelGrabber = new PixelGrabber(image, 0, 0, width, height, pixels, 0, width);
    if (!pixelGrabber.grabPixels())
      throw fail("Could not grab pixels");
    int n = width*height;
    
    for (int i = 0; i < n; i++) {
      //bytePixels[i] = pixelToByte(pixels[i]);
      int packed = pixels[i];
      float r = ((packed >> 16) & 0xFF)/255f;
      float g = ((packed >> 8) & 0xFF)/255f;
      float b = (packed & 0xFF)/255f;
      bytePixels[i] = (byte) ((r+g+b)/3.0f*255f);
    }
    storage = makeStorage(width, height, bytePixels);
  
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  
  // TODO: does it exactly match the other method? (asRGB+getBrightness+toByte)
  static byte pixelToByte(int packed) {
    /*int r = (packed >> 16) & 0xFF;
    int g = (packed >> 8) & 0xFF;
    int b = packed & 0xFF;
    ret (byte) ((r+g+b)/3.0f);*/
    float r = ((packed >> 16) & 0xFF)/255f;
    float g = ((packed >> 8) & 0xFF)/255f;
    float b = (packed & 0xFF)/255f;
    return (byte) ((r+g+b)/3.0f*255f);
  }

  public byte getByte(int x, int y) {
    return inRange(x, y) ? storage.getByte(x,y ) : toByte(borderColor);
  }

  public BWImage(int width, int height, float brightness) {
    this.width = width;
    this.height = height;
    byte b = toByte(brightness);
    byte[] pixels = new byte[width*height];
    for (int i = 0; i < pixels.length; i++)
      pixels[i] = b;
    storage = makeStorage(width, height, pixels);
  }

  public double averageBrightness() {
    double sum = 0;
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++)
        sum += getPixel(x, y);
    return (sum/(double) (height*width));
  }

  public float minimumBrightness() {
    float min = 1;
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++)
        min = Math.min(min, getPixel(x, y));
    return min;
  }

  public float maximumBrightness() {
    float max = 0;
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++)
        max = Math.max(max, getPixel(x, y));
    return max;
  }

  float getPixel(int x, int y) {
    return inRange(x, y) ? toFloat(storage.getByte(x,y )) : borderColor;
  }
  
  float getPixel(Pt p) { return getPixel(p.x, p.y); }

  public static byte toByte(float pixel) {
    return (byte) (pixel*255f);
  }

  public static float toFloat(byte pixel) {
    return (((int) pixel) & 255)/255f;
  }

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

  public int getWidth() { return width; }
  int w() { return width; }

  public int getHeight() { return height; }
  int h() { return height; }

  public RGBImage toRGB() {
    RGB[] rgbs = new RGB[width*height];
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++) {
        float p = getPixel(x, y);
        rgbs[y*width+x] = new RGB(p, p, p);
      }
    return new RGBImage(width, height, rgbs);
  }

  public BWImage clip(int x, int y, int w, int h) {
    return clip(new Rectangle(x, y, w, h));
  }

  private Rectangle fixClipRect(Rectangle r) {
    return r.intersection(new Rectangle(0, 0, width, height));
  }

  BWImage clip(Rect r) {
    return clip(r.getRectangle());
  }
  
  /** this should be multithread-safe */
  public BWImage clip(Rectangle r) {
    r = fixClipRect(r);
    byte[] newPixels = new byte[r.height*r.width];
    for (int y = 0; y < r.height; y++)
      for (int x = 0; x < r.width; x++)
        newPixels[y*r.width+x] = getByte(r.x+x, r.y+y);
    return new BWImage(r.width, r.height, newPixels);
  }

  public void setPixel(int x, int y, float brightness) {
    storage.setByte(x, y, toByte(fixPixel(brightness)));
  }

  public void setByte(int x, int y, int brightness) {
    storage.setByte(x, y, (byte) brightness);
  }

  private float fixPixel(float pixel) {
    return Math.max(0, Math.min(1, pixel));
  }

  public float getBorderColor() {
    return borderColor;
  }

  public void setBorderColor(float borderColor) {
    this.borderColor = borderColor;
  }

  public boolean anyPixelBrighterThan(double threshold) {
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++)
        if (getPixel(x, y) > threshold)
          return true;
    return false;
  }
  
  BufferedImage getBufferedImage() {
    //ret toRGB().getBufferedImage();
    
    BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++) {
        int b = ((int) getByte(x, y) & 0xFF);
        bufferedImage.setRGB(x, y, b*0x010101);
      }
    return bufferedImage; 
  }
  
  byte[] getBytes() {
    return storage.pixels;
  }
}

static class BWImageSimpleStorage {
  int width, height;
  byte[] pixels;
  
  // for unstructure()
  BWImageSimpleStorage() {}

  public BWImageSimpleStorage(int width, int height, byte[] pixels) {
    this.width = width;
    this.height = height;
    this.pixels = pixels;
  }

  public void setByte(int x, int y, byte b) {
    pixels[y*width+x] = b;
  }

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

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

// uses HashMap by default
static class MultiSet<A> {
  Map<A, Integer> map = new HashMap();
  
  public MultiSet(boolean useTreeMap) {
    if (useTreeMap)
      map = new TreeMap();
  }
  
  public MultiSet() {
  }
  
  public MultiSet(Collection<A> c) {
    addAll(c);
  }

  public void add(A key) {
    add(key, 1);
  }
  
  public void addAll(Collection<A> c) {
    if (c != null) for (A a : c)
      add(a);
  }

  void addAll(MultiSet<A> ms) {
    for (A a : ms.keySet())
      add(a, ms.get(a));
  }
  
  public void add(A key, int count) {
    if (map.containsKey(key))
      map.put(key, map.get(key)+count);
    else
      map.put(key, count);
  }

  public int get(A key) {
    return key != null && map.containsKey(key) ? map.get(key) : 0;
  }
  
  public boolean contains(A key) {
    return map.containsKey(key);
  }

  public void remove(A key) {
    Integer i = map.get(key);
    if (i != null && i > 1)
      map.put(key, i - 1);
    else
      map.remove(key);
  }

  public List<A> getTopTen() {
    return getTopTen(10);
  }
  
  public List<A> getTopTen(int maxSize) {
    List<A> list = getSortedListDescending();
    return list.size() > maxSize ? list.subList(0, maxSize) : list;
  }
  
  List<A> highestFirst() {
    return getSortedListDescending();
  }

  List<A> lowestFirst() {
    return reversedList(getSortedListDescending());
  }

  public List<A> getSortedListDescending() {
    List<A> list = new ArrayList<A>(map.keySet());
    Collections.sort(list, new Comparator<A>() {
      public int compare(A a, A b) {
        return map.get(b).compareTo(map.get(a));
      }
    });
    return list;
  }

  public int getNumberOfUniqueElements() {
    return map.size();
  }
  
  int uniqueSize() {
    return map.size();
  }

  public Set<A> asSet() {
    return map.keySet();
  }

  Set<A> keySet() { // synonym for idiots
    return map.keySet();
  }
  
  public A getMostPopularEntry() {
    int max = 0;
    A a = null;
    for (Map.Entry<A,Integer> entry : map.entrySet()) {
      if (entry.getValue() > max) {
        max = entry.getValue();
        a = entry.getKey();
      }
    }
    return a;
  }

  public void removeAll(A key) {
    map.remove(key);
  }

  public int size() {
    int size = 0;
    for (int i : map.values())
      size += i;
    return size;
  }

  public MultiSet<A> mergeWith(MultiSet<A> set) {
    MultiSet<A> result = new MultiSet<A>();
    for (A a : set.asSet()) {
      result.add(a, set.get(a));
    }
    return result;
  }
  
  public boolean isEmpty() {
    return map.isEmpty();
  }
  
  public String toString() {
    return structure(this);
  }
  
  public void clear() {
    map.clear();
  }
  
  Map<A, Integer> asMap() {
    return cloneMap(map);
  }
}

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) {
    r = Integer.parseInt(hex.substring(0, 2), 16)/255f;
    g = Integer.parseInt(hex.substring(2, 4), 16)/255f;
    b = Integer.parseInt(hex.substring(4, 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();
  }
}

static class RGBImage {
  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); }

  int getWidth() { return width; }
  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);
    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;
  }

  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 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 JFrame showFullScreen(final JComponent c) {
  return (JFrame) swingAndWait(new 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();
    if (dec)
      JFrame.setDefaultLookAndFeelDecorated(true);
    registerEscape(window, new Runnable() { public void run() { try {  window.dispose() ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "window.dispose()"; }});
    window.add(wrap(c));
    gd.setFullScreenWindow(window);
    return window;
   
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  public String toString() { return "GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment()\r\n      .getDefaultScreenDevice();\r\n    if (!gd.isFullScreenSupported())\r\n      fail(\"No full-screen mode supported!\");\r\n    bool dec = JFrame.isDefaultLookAndFeelDecorated();\r\n    if (dec)\r\n      JFrame.setDefaultLookAndFeelDecorated(false);\r\n    final new JFrame window;\r\n    if (dec)\r\n      JFrame.setDefaultLookAndFeelDecorated(true);\r\n    registerEscape(window, r { window.dispose() });\r\n    window.add(wrap(c));\r\n    gd.setFullScreenWindow(window);\r\n    ret window;"; }});
}
static void swingNowOrLater(Runnable r) {
  if (isAWTThread())
    r.run();
  else
    swingLater(r);
}
static boolean equals(Object a, Object b) {
  return a == null ? b == null : a.equals(b);
}
static String uploadImage(String title, byte[] imgData) { try {
 
  return uploadImage(programID(), title, imgData);

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  
static String uploadImage(String gummipw, String title, byte[] imgData) { try {
 
  if (gummipw == null || gummipw.length() == 0)
    throw new RuntimeException("Need gummi password.");
    
  System.out.println("Uploading:");
  System.out.println("  gummipw: " + gummipw);
  System.out.println("  " + title);
  int displayLength = 40;
  System.out.println("  " + imgData.length + " bytes of image data");

  URL url = new URL("http://tinybrain.de:8080/tb-int/add_snippet.php");
  String postData =
    "gummipw=" + URLEncoder.encode(unnull(gummipw), "UTF-8")
    + "&blob=" + URLEncoder.encode(base64encode(imgData), "UTF-8")
    + "&name=" + URLEncoder.encode(unnull(title), "UTF-8")
    + "&type=" + 23 /* SN_IMAGE */
    + "&high=1&public=1";
  //System.out.println(postData);

  String contents = doPost(postData, url.openConnection(), url);
  System.out.println(contents);

  if (isInteger(contents)) {
    long id = parseSnippetID(contents);
    System.out.println("=> #" + id);
    return "#" + id;
  } else
    throw new RuntimeException("Server error: " + contents);

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static boolean inRange(int x, int n) {
  return x >= 0 && x < n;
}
static BufferedImage createBufferedImage(int w, int h, Color color) {
  return newBufferedImage(w, h, color);
}
static void showFullScreenImageSurface(BufferedImage img) {
  showFullScreen(jscroll(disposeFrameOnClick(new ImageSurface(img))));
}
static boolean containsInstance(Iterable i, Class c) {
  if (i != null) for (Object o : i)
    if (isInstanceX(c, o))
      return true;
  return false;
}
//please include function withMargin.

static int showForm_defaultGap = 4;

static JPanel showFormTitled(String title, Object... _parts) {
  final Var<JFrame> frame = new Var();
  JPanel panel = showForm_makePanel(frame, _parts);
  frame.set(minFrameWidth(showPackedFrame(title, withMargin(panel)), 400));
  return panel;
}

static JPanel showForm_makePanel(final Var<JFrame> frame, Object... _parts) {
  List<List> l = new ArrayList();
  List parts = asList(_parts);
  Runnable submit = null;
  for (int i = 0; i < l(parts); i++) {
    final Object o = parts.get(i), next = get(parts, i+1);
    if (o instanceof Component || o instanceof String || next instanceof Component) { // smartAdd accepts strings
      l.add(ll(o == null ? new JPanel() : o, next));
      if (next instanceof JButton && submit == null)
        submit = new Runnable() { public void run() { try {  ((JButton) next).doClick() ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "((JButton) next).doClick()"; }};
      i++;
    } else if (isRunnable(o))
      l.add(ll(null, jbutton(showFormSubmitButtonName(), submit = new Runnable() { public void run() { try { 
        Object result = call(o);
        if (neq(Boolean.FALSE, result))
          disposeFrame(frame.get());
      
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "Object result = call(o);\r\n        if (neq(Boolean.FALSE, result))\r\n          disposeFrame(frame.get());"; }})));
    else print("showForm: Unknown element type: " + getClassName(o));
  }
  JPanel panel = hvgrid((List) l, showForm_defaultGap);
  if (submit != null)
    for (JTextField textField : childrenOfType(panel, JTextField.class))
      onEnter(textField, submit);
  return panel;
}
static <A> List<A> reversedList(Collection<A> l) {
  List<A> x = cloneList(l);
  Collections.reverse(x);
  return x;
}
static <A, B> Map<A, B> cloneMap(Map<A, B> map) {
  if (map == null) return litmap();
  // assume mutex is equal to collection, which will be true unless you explicitly pass a mutex to synchronizedList() which no one ever does.
  synchronized(map) {
    return new HashMap(map);
  }
}
static <A> void addAll(Collection<A> c, Collection<A> b) {
  c.addAll(b);
}

static void addAll(Collection c, Object[] b) {
  c.addAll(Arrays.asList(b));
}
static BufferedImage clipBufferedImage(BufferedImage src, Rectangle clip) {
  return src.getSubimage(clip.x, clip.y, clip.width, clip.height);
}

static BufferedImage clipBufferedImage(BufferedImage src, Rect clip) {
  return clipBufferedImage(src, clip.getRectangle());
}

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 byte[] toPNG(BufferedImage img) {
  return convertToPNG(img);
}
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 Set<String> asSet(Collection<String> l) {
  TreeSet<String> set = new TreeSet();
  for (String o : l)
    if (o != null)
      set.add(o);
  return set;
}

// onDrop: voidfunc(File)
static void jHandleFileDrop(JComponent c, final Object onDrop) {
  new DropTarget(c, new DropTargetAdapter() {
    public void drop(DropTargetDropEvent e) {
      try { /* pcall 1*/ 
        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;
          }
        }
      /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
      e.rejectDrop();
    }
  });
}
static void restart() {
  Object j = getJavaX();
  call(j, "cleanRestart", get(j, "fullArgs"));
}

static BufferedImage getImageFromClipboard() { try {
 
  Transferable transferable = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null);
  if (transferable != null && transferable.isDataFlavorSupported(DataFlavor.imageFlavor))
    return (BufferedImage) transferable.getTransferData(DataFlavor.imageFlavor);
  return null;

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static void copyImageToClipboard(Image img) {
  TransferableImage trans = new TransferableImage(img);
  Toolkit.getDefaultToolkit().getSystemClipboard().setContents( trans, null);
  print("Copied image to clipboard (" + img.getWidth(null) + "*" + img.getHeight(null) + " px)");
}
static int asInt(Object o) {
  return toInt(o);
}


  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);
      }
    });
  }
static boolean isRunnable(Object o) {
  return o instanceof Runnable || hasMethod(o, "get");
}
static <A> List<A> childrenOfType(Component c, Class<A> theClass) {
  List<A> l = new ArrayList();
  scanForComponents(c, theClass, l);
  return l;
}
static <A extends JComponent> A disposeFrameOnClick(final A c) {
  onClick(c, new Runnable() { public void run() { try {  disposeFrame(c) ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "disposeFrame(c)"; }});
  return c;
}
static <A> List<A> cloneList(Collection<A> l) {
  //O mutex = getOpt(l, "mutex");
  /*if (mutex != null)
    synchronized(mutex) {
      ret new ArrayList<A>(l);
    }
  else
    ret new ArrayList<A>(l);*/
  // assume mutex is equal to collection, which will be true unless you explicitly pass a mutex to synchronizedList() which no one ever does.
  synchronized(l) {
    return new ArrayList<A>(l);
  }
}
static Map litmap(Object... x) {
  TreeMap map = new TreeMap();
  litmap_impl(map, x);
  return map;
}

static void litmap_impl(Map map, Object... x) {
  for (int i = 0; i < x.length-1; i += 2)
    if (x[i+1] != null)
      map.put(x[i], x[i+1]);
}
// TODO: all the fringe cases (?)
static <A> JPanel hvgrid(List<List<A>> components) {
  if (empty(components)) return new JPanel();
  int h = l(components), w = l(first(components));
  JPanel panel = new JPanel();
  panel.setLayout(new GridLayout(h, w));
  for (List<A> row : components)
    smartAdd(panel, row);
  return panel;  
}

static <A> JPanel hvgrid(List<List<A>> components, int gap) {
  JPanel panel = hvgrid(components);
  GridLayout g = (GridLayout) ( panel.getLayout());
  g.setHgap(gap);
  g.setVgap(gap);
  return panel;
}
static void disposeFrame(final Component c) {
  swingNowOrLater(new Runnable() { public void run() { try { 
    Frame f = getFrame(c);
    if (f != null)
      f.dispose();
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "Frame f = getFrame(c);\n    if (f != null)\n      f.dispose();"; }});
}
static BufferedImage newBufferedImage(int w, int h, Color color) {
  BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
  Graphics2D g = img.createGraphics();
  g.setColor(color);
  g.fillRect(0, 0, w, h);
  return img;
}
static void registerEscape(JFrame frame, final Runnable r) {
  String name = "Escape";
  Action action = abstractAction(name, r);
  JComponent pnl = frame.getRootPane();
  KeyStroke keyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
  pnl.getActionMap().put(name, action);
  pnl.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(keyStroke, name);
}
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 JScrollPane jscroll(Component c) {
  return new JScrollPane(c);
}
static byte[] convertToPNG(BufferedImage img) { try {
 
  ByteArrayOutputStream stream = new ByteArrayOutputStream();
  ImageIO.write(img, "png", stream);
  return stream.toByteArray();

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static String showFormSubmitButtonName() {
  return "Submit";
}
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);
  return doPost(urlParameters, _url.openConnection(), _url);

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}

static String doPost(String urlParameters, URLConnection conn, URL url) { try {
 
  setHeaders(conn);

  print("Sending POST request: " + url);
      
  // connect and do POST
  conn.setDoOutput(true);

  OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
  writer.write(urlParameters);
  writer.flush();

  String contents = loadPage(conn, url);
  writer.close();
  return contents;

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
  static String base64encode(byte[] a) {
    int aLen = a.length;
    int numFullGroups = aLen/3;
    int numBytesInPartialGroup = aLen - 3*numFullGroups;
    int resultLen = 4*((aLen + 2)/3);
    StringBuffer result = new StringBuffer(resultLen);
    char[] intToAlpha = intToBase64;

    // Translate all full groups from byte array elements to Base64
    int inCursor = 0;
    for (int i=0; i<numFullGroups; i++) {
      int byte0 = a[inCursor++] & 0xff;
      int byte1 = a[inCursor++] & 0xff;
      int byte2 = a[inCursor++] & 0xff;
      result.append(intToAlpha[byte0 >> 2]);
      result.append(intToAlpha[(byte0 << 4)&0x3f | (byte1 >> 4)]);
      result.append(intToAlpha[(byte1 << 2)&0x3f | (byte2 >> 6)]);
      result.append(intToAlpha[byte2 & 0x3f]);
    }

    // Translate partial group if present
    if (numBytesInPartialGroup != 0) {
      int byte0 = a[inCursor++] & 0xff;
      result.append(intToAlpha[byte0 >> 2]);
      if (numBytesInPartialGroup == 1) {
        result.append(intToAlpha[(byte0 << 4) & 0x3f]);
        result.append("==");
      } else {
        // assert numBytesInPartialGroup == 2;
        int byte1 = a[inCursor++] & 0xff;
        result.append(intToAlpha[(byte0 << 4)&0x3f | (byte1 >> 4)]);
        result.append(intToAlpha[(byte1 << 2)&0x3f]);
        result.append('=');
      }
    }
    // assert inCursor == a.length;
    // assert result.length() == resultLen;
    return result.toString();
  }

  /**
   * This array is a lookup table that translates 6-bit positive integer
   * index values into their "Base64 Alphabet" equivalents as specified
   * in Table 1 of RFC 2045.
   */
  static final char intToBase64[] = {
    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
    'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
    'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
    'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'
  };


static <A> void scanForComponents(Component c, Class<A> theClass, List<A> l) {
  if (theClass.isInstance(c))
    l.add((A) c);
  if (c instanceof Container)
  for (Component comp : ((Container) c).getComponents())
    scanForComponents(comp, theClass, l);
}
static JPanel smartAdd(JPanel panel, List parts) {
  for (Object o : parts) {
    Component c;
    if (o == null)
      c = new JPanel();
    else if (o instanceof String)
      c = jlabel((String) o);
    else
      c = wrap(o);
    panel.add(c);
  }
  return panel;
}

static JPanel smartAdd(JPanel panel, Object... parts) {
  return smartAdd(panel, asList(parts));
}

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 AbstractAction abstractAction(String name, final Object runnable) {
  return new AbstractAction(name) {
    public void actionPerformed(ActionEvent evt) {
      pcallF(runnable);
    }
  };
}


static String escapeMultichars(String s) {
  StringBuilder buf = new StringBuilder();
  for (int i = 0; i < l(s); i++)
    if (isExtendedUnicodeCharacter(s, i)) {
      buf.append("[xchar " + intToHex(s.codePointAt(i)) + "]");
      ++i;
    } else
      buf.append(s.charAt(i));
  return str(buf);
}
  public static String join(String glue, Iterable<String> strings) {
    StringBuilder buf = new StringBuilder();
    Iterator<String> i = strings.iterator();
    if (i.hasNext()) {
      buf.append(i.next());
      while (i.hasNext())
        buf.append(glue).append(i.next());
    }
    return buf.toString();
  }
  
  public static String join(String glue, String[] strings) {
    return join(glue, Arrays.asList(strings));
  }
  
  public static String join(Iterable<String> strings) {
    return join("", strings);
  }
  
  public static String join(String[] strings) {
    return join("", strings);
  }

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


static boolean isExtendedUnicodeCharacter(String s, int idx) {
  return Character.charCount(s.codePointAt(idx)) > 1;
}
static String intToHex(int i) {
  return bytesToHex(intToBytes(i));
}


static byte[] intToBytes(int i) {
  return new byte[] {
          (byte) (i >>> 24),
          (byte) (i >>> 16),
          (byte) (i >>> 8),
          (byte) i};
}



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 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 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 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: " + structure(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 int hashCode(Object a) {
  return a == null ? 0 : a.hashCode();
}

}