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 java.util.function.*;
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 java.awt.geom.*;
import javax.imageio.*;
import java.math.*;
import java.time.Duration;
import x30_pkg.x30_util;
import static x30_pkg.x30_util.VF1;
import static x30_pkg.x30_util.l;
import static x30_pkg.x30_util.getOpt;
import static x30_pkg.x30_util.setOpt;
import static x30_pkg.x30_util.callOpt;
import static x30_pkg.x30_util.newWeakHashMap;
import static x30_pkg.x30_util.newDangerousWeakHashMap;
import static x30_pkg.x30_util.get;
import static x30_pkg.x30_util.assertTrue;
import static x30_pkg.x30_util.isHeadless;
import static x30_pkg.x30_util.isAndroid;
import static x30_pkg.x30_util.isTrue;
import x30_pkg.x30_util.DynamicObject;
import loadableUtils.utils;
import static loadableUtils.utils._threadInfo;
import static loadableUtils.utils._threadInheritInfo;
import static loadableUtils.utils.dm_current_mandatory;
import static loadableUtils.utils.match;
import static loadableUtils.utils.vm_generalIdentityHashSet;
import static loadableUtils.utils.vm_generalHashMap;
import static loadableUtils.utils.vm_generalWeakSubMap;
import static loadableUtils.utils.bindToComponent;
import static loadableUtils.utils.structure;
import static loadableUtils.utils.loadPage;
import static loadableUtils.utils.loadPage_utf8;
import static loadableUtils.utils.loadPageSilently;
import static loadableUtils.utils.loadSnippet;
import static loadableUtils.utils.componentPopupMenu;
import static loadableUtils.utils.dm_current_generic;
import static loadableUtils.utils.dm_current_mandatory_generic;
import static loadableUtils.utils.DynamicObject_loading;
import static loadableUtils.utils.rethrow;
import loadableUtils.utils.F0;
import loadableUtils.utils.F1;
import loadableUtils.utils.IF0;
import loadableUtils.utils.IF1;
import loadableUtils.utils.IVF1;
import loadableUtils.utils.IVF2;
import loadableUtils.utils.Matches;
import loadableUtils.utils.BetterLabel;
import loadableUtils.utils.Snippet;
import loadableUtils.utils.structure_Data;
import loadableUtils.utils.RGBImage;
import loadableUtils.utils.MultiSet;
import loadableUtils.utils.Concept;
import loadableUtils.utils.Concepts;
import loadableUtils.utils.IterableIterator;
import loadableUtils.utils.Swingable;
import loadableUtils.utils.PersistableThrowable;
import loadableUtils.utils.DynModule;
import loadableUtils.utils.DynPrintLog;
import loadableUtils.utils.Rect;
import loadableUtils.utils.Pt;
import loadableUtils.utils.WidthAndHeight;
import javax.swing.border.*;
import javax.swing.undo.UndoManager;
import java.awt.datatransfer.StringSelection;
import javax.imageio.metadata.*;
import javax.imageio.stream.*;
import java.awt.geom.*;
import java.nio.charset.Charset;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.text.*;
import java.util.TimeZone;

class main {

  static public void _onLoad() {
    onTranspilerDirty(new Runnable() {

      public void run() {
        try {
          dm_mediumRefreshTranspiler();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "dm_mediumRefreshTranspiler();";
      }
    });
  }

  static public class StefansAssistant extends DynPrintLog {

    transient public JTextField tfInput;

    public void start() {
      try {
        super.start();
        JComponent trayIcon = jimage("#1101420");
        onLeftClick(trayIcon, runnableThread(new Runnable() {

          public void run() {
            try {
              AutoCloseable __13 = enter();
              try {
                addStdFunctionWithAnimation();
              } finally {
                _close(__13);
              }
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "temp enter();  addStdFunctionWithAnimation();";
          }
        }));
        componentPopupMenuItems(trayIcon, "Stefan's Assistant", new Runnable() {

          public void run() {
            try {
              dm_showModule(module());
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "dm_showModule(module())";
          }
        }, "Refresh Transpiler", new Runnable() {

          public void run() {
            try {
              dm_refreshTranspiler();
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "dm_refreshTranspiler();";
          }
        });
        dm_setTrayIcon(trayIcon);
        dm_onSnippetEdited("#1006654", new Runnable() {

          public void run() {
            try {
              dm_reloadModule();
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "dm_reloadModule();";
          }
        });
        dm_stefansAssistant_offerSFOnSnippetCreated();
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }

    public JComponent visualize() {
      return centerAndSouthWithMargins(super.visualize(), centerAndEastWithSpacing(onEnter(tfInput = jtextfield("sf"), runnableThread(new Runnable() {

        public void run() {
          try {
            go();
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "go();";
        }
      })), jbutton("Go", runnableThread(new Runnable() {

        public void run() {
          try {
            go();
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "go();";
        }
      }))));
    }

    public void enhanceFrame(Container f) {
      super.enhanceFrame(f);
      onInternalFrameActivatedAndNow(((JInternalFrame) f), new Runnable() {

        public void run() {
          try {
            AutoCloseable __10 = enter();
            try {
              if (!dm_osLoading())
                focus(tfInput);
            } finally {
              _close(__10);
            }
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "temp enter(); \r\n      if (!dm_osLoading()) focus(tfInput);";
        }
      });
    }

    public void go() {
      AutoCloseable __11 = enter();
      try {
        print(stefansAssistant_answer(getText(tfInput)));
      } finally {
        _close(__11);
      }
    }
  }

  static public boolean _moduleClass_StefansAssistant = true;

  static public String programID;

  static public void _onLoad_initUtils() {
    utils.__javax = javax();
  }

  static public void _onLoad_defaultClassFinder() {
    setDefaultClassFinder(new F1<String, Class>() {

      public Class get(String name) {
        Class c = findClass_fullName(name);
        if (c != null)
          return c;
        if (name.startsWith("main$"))
          return loadableUtils.utils.findClass_fullName("loadableUtils.utils" + name.substring(4));
        return null;
      }
    });
  }

  static public ThreadLocal<Boolean> dynamicObjectIsLoading_threadLocal() {
    return DynamicObject_loading;
  }

  static volatile public Concepts mainConcepts;

  static public Concepts db_mainConcepts() {
    if (mainConcepts == null)
      mainConcepts = newConceptsWithClassFinder(getDBProgramID());
    return mainConcepts;
  }

  static public void cleanMeUp_concepts() {
    if (db_mainConcepts() != null)
      db_mainConcepts().cleanMeUp();
  }

  static public void onTranspilerDirty(Runnable l) {
    triggerTranspilerDirty_listeners.add(l);
  }

  static public void dm_mediumRefreshTranspiler() {
    dm_call(dm_moduleOfType("#1017065/Transpiler"), "mediumRefresh");
  }

  static public JLabel jimage(Image img) {
    return jImageLabel(img);
  }

  static public JLabel jimage(String imageID) {
    return jImageLabel(imageID);
  }

  static public <A extends JComponent> A onLeftClick(final A c, final Object runnable) {
    {
      swing(() -> {
        c.addMouseListener(leftClickMouseAdapter(runnable));
      });
    }
    return c;
  }

  static public TrayIcon onLeftClick(final TrayIcon c, final Object runnable) {
    {
      swing(() -> {
        c.addMouseListener(leftClickMouseAdapter_noPt(runnable));
      });
    }
    return c;
  }

  static public <A extends JComponent> A onLeftClick(final Object runnable, A c) {
    return onLeftClick(c, runnable);
  }

  static public <A extends JComponent> A onLeftClick(Runnable runnable, A c) {
    return onLeftClick((Object) runnable, c);
  }

  static public <A extends JComponent> A onLeftClick(A c, Runnable r) {
    return onLeftClick(r, c);
  }

  static public <A extends JComponent> A onLeftClick(A c, IVF1<Pt> r) {
    return onLeftClick(c, (Object) r);
  }

  static public Runnable runnableThread(final Runnable r) {
    return new Runnable() {

      public void run() {
        try {
          startThread(r);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "startThread(r)";
      }
    };
  }

  static public String addStdFunctionWithAnimation() {
    return showAnimationForAddStdFunction(addStdFunction());
  }

  static public String addStdFunctionWithAnimation(String snippetID) {
    return showAnimationForAddStdFunction(addStdFunction(snippetID, true));
  }

  static public void _close(AutoCloseable c) {
    if (c != null)
      try {
        c.close();
      } catch (Throwable e) {
        if (c instanceof javax.imageio.stream.ImageOutputStream)
          return;
        else
          throw rethrow(e);
      }
  }

  static public <A extends JComponent> A componentPopupMenuItems(A c, final Object... params) {
    componentPopupMenu(c, new VF1<JPopupMenu>() {

      public void get(JPopupMenu menu) {
        try {
          addMenuItems(menu, params);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "addMenuItems(menu, params)";
      }
    });
    return c;
  }

  static public void dm_showModule(Object module) {
    Object stem = dm_getStem(module);
    if (stem != null)
      dm_callOS("showModule", stem);
  }

  static public void dm_showModule() {
    dm_showModule(dm_current_mandatory_generic());
  }

  static public void dm_refreshTranspiler() {
    dm_call(dm_moduleOfType("#1017065/Transpiler"), "refresh");
  }

  static public void dm_setTrayIcon(final JComponent icon) {
    final DynModule dm = dm_current_mandatory();
    {
      swing(() -> {
        AutoCloseable __1 = dm.enter();
        try {
          JComponent oldIcon = (JComponent) (dm.transientGeneralMap.get("trayIcon"));
          dm_removeTrayIcon(oldIcon);
          mapPutOrRemove(dm.transientGeneralMap, "trayIcon", icon);
          dm_addTrayIcon(icon);
        } finally {
          _close(__1);
        }
      });
    }
  }

  static public AutoCloseable dm_onSnippetEdited(final VF1<String> r) {
    dm_requireSnippetUpdatesModule();
    final DynModule m = dm_current_mandatory();
    return dm_vmBus_onMessage("snippetUpdate", new VF1<List>() {

      public void get(final List l) {
        try {
          m.q().add(new Runnable() {

            public void run() {
              try {
                String uri = getString(l, 1);
                Matches m = new Matches();
                if (swic(uri, "/edit/", m)) {
                  String snippetID = fsI(firstIntAsString(m.rest()));
                  callF(r, snippetID);
                }
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "String uri = getString(l, 1);\r\n    new Matches m;\r\n    if (swic(uri, \"/edit/\"...";
            }
          });
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "switch to m.q();\r\n    S uri = getString(l, 1);\r\n    new Matches m;\r\n    if (s...";
      }
    });
  }

  static public AutoCloseable dm_onSnippetEdited(final String snippetID, final Runnable r) {
    return dm_onSnippetEdited(new VF1<String>() {

      public void get(String id) {
        try {
          if (sameSnippetID(id, snippetID))
            callF(r);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "if (sameSnippetID(id, snippetID)) callF(r)";
      }
    });
  }

  static public void dm_reloadModule(Object module) {
    dm_reloadModuleInBackground(module);
  }

  static public void dm_reloadModule() {
    dm_reloadModuleInBackground();
  }

  static public void dm_stefansAssistant_offerSFOnSnippetCreated() {
    DynModule mod = dm_current_mandatory();
    dm_onSnippetCreated(new VF1<String>() {

      public void get(String snippetID) {
        try {
          print("New snippet! " + snippetID);
          if (!dm_hadUserActivityInLastNMinutes(1)) {
            print("No user activity, skipping popup dialog");
            return;
          }
          if (getSnippetType(snippetID) == snippetType_JavaXInclude()) {
            String text = loadSnippet(snippetID);
            String sfName = first(findFunctionDefsAtCurlyLevel(0, text));
            if (sfName != null)
              disposeWindowAfter(30.0, (showPackedFrameInBottomRightCorner(centerAndSouthWithMargins(jlabel("Add standard function: " + sfName + "?"), hgridWithSpacing(jThreadedButton("OK", new Runnable() {

                public void run() {
                  try {
                    AutoCloseable __1 = dm_enter(mod);
                    try {
                      disposeWindow(heldInstance(JButton.class));
                      addStandardFunctionWithAnimation(snippetID);
                    } finally {
                      _close(__1);
                    }
                  } catch (Exception __e) {
                    throw rethrow(__e);
                  }
                }

                public String toString() {
                  return "temp dm_enter(mod);\r\n                disposeWindow(heldInstance(JButton));\r\n ...";
                }
              }), jCancelButton("No"))))));
          }
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "print(\"New snippet! \" + snippetID);\r\n    if (!dm_hadUserActivityInLastNMinute...";
      }
    });
  }

  static public JPanel centerAndSouthWithMargins(Swingable c, Swingable s) {
    return centerAndSouthWithMargins(c, toComponent(s));
  }

  static public JPanel centerAndSouthWithMargins(Swingable c, Component s) {
    return centerAndSouthWithMargins(toComponent(c), s);
  }

  static public JPanel centerAndSouthWithMargins(Component c, Swingable s) {
    return centerAndSouthWithMargins(c, toComponent(s));
  }

  static public JPanel centerAndSouthWithMargins(Component c, Component s) {
    return applyDefaultMargin(centerAndSouth(c, withTopMargin(s)));
  }

  static public JPanel centerAndSouthWithMargins(int margin, Swingable c, Swingable s) {
    return centerAndSouthWithMargins(margin, c, toComponent(s));
  }

  static public JPanel centerAndSouthWithMargins(int margin, Swingable c, Component s) {
    return centerAndSouthWithMargins(margin, toComponent(c), s);
  }

  static public JPanel centerAndSouthWithMargins(int margin, Component c, Swingable s) {
    return centerAndSouthWithMargins(margin, c, toComponent(s));
  }

  static public JPanel centerAndSouthWithMargins(int margin, Component c, Component s) {
    return applyMargin(margin, centerAndSouth(c, withTopMargin(margin, s)));
  }

  static public JPanel centerAndEastWithSpacing(Component c, Component e) {
    return centerAndEastWithMarginInbetween(c, e);
  }

  static public JTextField onEnter(JTextField tf, JButton btn) {
    if (btn != null)
      onEnter(tf, new Runnable() {

        public void run() {
          try {
            clickButton(btn);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "clickButton(btn)";
        }
      });
    return tf;
  }

  static public JTextField onEnter(JTextField tf, Object action) {
    if (action == null || tf == null)
      return tf;
    tf.addActionListener(new java.awt.event.ActionListener() {

      public void actionPerformed(java.awt.event.ActionEvent _evt) {
        try {
          tf.selectAll();
          callF(action);
        } catch (Throwable __e) {
          messageBox(__e);
        }
      }
    });
    return tf;
  }

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

  static public JList onEnter(JList list, Object action) {
    list.addKeyListener(enterKeyListener(rCallOnSelectedListItem(list, action)));
    return list;
  }

  static public JComboBox onEnter(final JComboBox cb, Runnable action) {
    {
      swing(() -> {
        if (cb.isEditable()) {
          JTextField text = (JTextField) cb.getEditor().getEditorComponent();
          onEnter(text, action);
        } else {
          cb.getInputMap().put(KeyStroke.getKeyStroke("ENTER"), "enter");
          cb.getActionMap().put("enter", abstractAction("", new Runnable() {

            public void run() {
              try {
                cb.hidePopup();
                callF(action);
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "cb.hidePopup(); callF(action);";
            }
          }));
        }
      });
    }
    return cb;
  }

  static public JTable onEnter(final JTable table, final Object action) {
    table.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "Enter");
    table.getActionMap().put("Enter", new AbstractAction() {

      public void actionPerformed(ActionEvent e) {
        callF(action, table.getSelectedRow());
      }
    });
    return table;
  }

  static public JTextField onEnter(Runnable action, JTextField tf) {
    return onEnter(tf, action);
  }

  static public JTextField jtextfield() {
    return jTextField();
  }

  static public JTextField jtextfield(String text) {
    return jTextField(text);
  }

  static public JTextField jtextfield(Object o) {
    return jTextField(o);
  }

  static public JButton jbutton(String text, Runnable action) {
    return newButton(text, action);
  }

  static public JButton jbutton(String text, Object action) {
    return newButton(text, action);
  }

  static public JButton jbutton(String text) {
    return newButton(text, null);
  }

  static public JButton jbutton(Action action) {
    return swingNu(JButton.class, action);
  }

  static public void onInternalFrameActivatedAndNow(final JInternalFrame w, final Object r) {
    onInternalFrameActivated(w, r);
    swingCallF(r);
  }

  static public boolean dm_osLoading() {
    return isTrue(dm_callOS("isLoading"));
  }

  static public <A extends JComponent> A focus(final A a) {
    if (a != null)
      swingLater(new Runnable() {

        public void run() {
          try {
            a.requestFocus();
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "a.requestFocus();";
        }
      });
    return a;
  }

  static volatile public StringBuffer local_log = new StringBuffer();

  static public boolean printAlsoToSystemOut = true;

  static volatile public Appendable print_log = local_log;

  static volatile public int print_log_max = 1024 * 1024;

  static volatile public int local_log_max = 100 * 1024;

  static public boolean print_silent = false;

  static public Object print_byThread_lock = new Object();

  static volatile public ThreadLocal<Object> print_byThread;

  static volatile public Object print_allThreads;

  static volatile public Object print_preprocess;

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

  static public <A> A print(String s, A o) {
    print(combinePrintParameters(s, o));
    return o;
  }

  static public <A> A print(A o) {
    ping_okInCleanUp();
    if (print_silent)
      return o;
    String s = o + "\n";
    print_noNewLine(s);
    return o;
  }

  static public void print_noNewLine(String s) {
    try {
      Object f = getThreadLocal(print_byThread_dontCreate());
      if (f == null)
        f = print_allThreads;
      if (f != null)
        if (isFalse(f instanceof F1 ? ((F1) f).get(s) : callF(f, s)))
          return;
    } catch (Throwable e) {
      System.out.println(getStackTrace(e));
    }
    print_raw(s);
  }

  static public void print_raw(String s) {
    if (print_preprocess != null)
      s = (String) callF(print_preprocess, s);
    s = fixNewLines(s);
    Appendable loc = local_log;
    Appendable buf = print_log;
    int loc_max = print_log_max;
    if (buf != loc && buf != null) {
      print_append(buf, s, print_log_max);
      loc_max = local_log_max;
    }
    if (loc != null)
      print_append(loc, s, loc_max);
    if (printAlsoToSystemOut)
      System.out.print(s);
    vmBus_send("printed", mc(), s);
  }

  static public void print_autoRotate() {
  }

  static public void stefansAssistant_p() {
    sfBot_p();
  }

  static public String stefansAssistant_answer(String s) {
    return stefansAssistant_answer(s, true);
  }

  static public String stefansAssistant_answer(String s, boolean clipboard) {
    if (match("id", s))
      return copyTextToClipboardIf(clipboard, aGlobalID());
    return sfBot_answer(s);
  }

  static public String getText(final AbstractButton c) {
    return c == null ? "" : (String) swingAndWait(new F0<Object>() {

      public Object get() {
        try {
          return c.getText();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return c.getText();";
      }
    });
  }

  static public String getText(final JTextComponent c) {
    return c == null ? "" : (String) swingAndWait(new F0<Object>() {

      public Object get() {
        try {
          return c.getText();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return c.getText();";
      }
    });
  }

  static public String getText(final JLabel l) {
    return l == null ? "" : (String) swingAndWait(new F0<Object>() {

      public Object get() {
        try {
          return l.getText();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return l.getText();";
      }
    });
  }

  static public String getText(final JComboBox cb) {
    if (cb == null)
      return null;
    if (isEditableComboBox(cb))
      return unnull((String) cb.getEditor().getItem());
    else
      return strOrNull(cb.getSelectedItem());
  }

  static public Class javax() {
    return getJavaX();
  }

  static public void setDefaultClassFinder(Object cf) {
    _defaultClassFinder_value = cf;
  }

  static public HashMap<String, Class> findClass_fullName_cache = new HashMap();

  static public Class findClass_fullName(String name) {
    synchronized (findClass_fullName_cache) {
      if (findClass_fullName_cache.containsKey(name))
        return findClass_fullName_cache.get(name);
      Class c;
      try {
        c = Class.forName(name);
      } catch (ClassNotFoundException e) {
        c = null;
      }
      findClass_fullName_cache.put(name, c);
      return c;
    }
  }

  static public List triggerTranspilerDirty_listeners = synchroList();

  static public void triggerTranspilerDirty() {
    pcallFAll(triggerTranspilerDirty_listeners);
  }

  static public AutoCloseable tempInterceptPrintIfNotIntercepted(F1<String, Boolean> f) {
    return print_byThread().get() == null ? tempInterceptPrint(f) : null;
  }

  static public Object _defaultClassFinder_value = defaultDefaultClassFinder();

  static public Object _defaultClassFinder() {
    return _defaultClassFinder_value;
  }

  static public Concepts newConceptsWithClassFinder(String progID) {
    Concepts cc = new Concepts(progID);
    cc.classFinder = _defaultClassFinder();
    return cc;
  }

  static public Concepts newConceptsWithClassFinder(File conceptsFile) {
    Concepts cc = new Concepts(assertNotNull(conceptsFile));
    cc.classFinder = _defaultClassFinder();
    return cc;
  }

  static public Concepts newConceptsWithClassFinder(File conceptsFile, IF1<String, Class> classFinder) {
    Concepts cc = new Concepts(assertNotNull(conceptsFile));
    cc.classFinder = classFinder;
    return cc;
  }

  static public String getDBProgramID_id;

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

  static public Object dm_call(Object moduleOrID, String method, Object... args) {
    Object mod = dm_getModule(moduleOrID);
    if (mod == null)
      return null;
    AutoCloseable __1 = dm_enter(mod);
    try {
      return call_withVarargs(mod, method, args);
    } finally {
      _close(__1);
    }
  }

  static public Object dm_moduleOfType(String type) {
    return first(dm_modulesOfType(type));
  }

  static public JLabel jImageLabel(Image img) {
    return swingNu(JLabel.class, imageIcon(img));
  }

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

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

  static public JLabel jImageLabel(String text, String imageID) {
    final JLabel l = swingNu(JLabel.class, text, imageIcon(imageID), JLabel.CENTER);
    {
      swing(() -> {
        l.setVerticalTextPosition(SwingConstants.BOTTOM);
        l.setHorizontalTextPosition(SwingConstants.CENTER);
      });
    }
    return l;
  }

  static public Object swing(Object f) {
    return swingAndWait(f);
  }

  static public void swing(Runnable f) {
    swingAndWait(f);
  }

  static public <A> A swing(F0<A> f) {
    return (A) swingAndWait(f);
  }

  static public <A> A swing(IF0<A> f) {
    return (A) swingAndWait(f);
  }

  static public MouseAdapter leftClickMouseAdapter(final Object r) {
    return new MouseAdapter() {

      public void mouseClicked(MouseEvent e) {
        if (e.getButton() == 1)
          pcallF(r, new Pt(e.getPoint()));
      }
    };
  }

  static public MouseAdapter leftClickMouseAdapter_noPt(final Object r) {
    return new MouseAdapter() {

      public void mouseClicked(MouseEvent e) {
        if (e.getButton() == 1)
          pcallF(r);
      }
    };
  }

  static public Thread startThread(Object runnable) {
    return startThread(defaultThreadName(), runnable);
  }

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

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

  static public Thread startThread(Thread t) {
    _registerThread(t);
    t.start();
    return t;
  }

  static public String showAnimationForAddStdFunction(String result) {
    if (containsWord(result, "Defining"))
      checkMarkAnimation_bottomLeft(result, 2);
    else
      infoBox(result);
    return result;
  }

  static public String addStdFunction() {
    {
      AutoCloseable __1 = tempShowLoadingAnimation();
      try {
        return addStdFunction(findLatestInclude().id, true);
      } finally {
        _close(__1);
      }
    }
  }

  static public String addStdFunction(boolean realEdit) {
    return addStdFunction(findLatestInclude().id, realEdit);
  }

  static public String addStdFunction_1006654;

  static public String addStdFunction(String snippetID, boolean realEdit) {
    {
      AutoCloseable __2 = tempShowLoadingAnimation();
      try {
        List<String> names = findFunctionDefsAtCurlyLevel(0, loadSnippet(snippetID));
        printStructure("Functions defined in " + snippetID + ": ", names);
        if (empty(names))
          return "No functions found in " + snippetID;
        String name = firstNotStartingWith(names, "_onLoad_");
        if (empty(names))
          return "No definable functions found in " + snippetID;
        if (addStdFunction_1006654 == null)
          addStdFunction_1006654 = loadSnippet("#1006654");
        Map<String, String> map = parseStdFunctionsList(addStdFunction_1006654);
        String text = loadSnippet("#761");
        map.putAll(parseStdFunctionsList(text));
        String def = map.get(name);
        String result = "";
        if (def == null) {
          print(result = "Defining " + name + ".");
          String newText = addToStdFunctionsList(text, name, snippetID);
          print();
          print(unidiff(text, newText));
          if (!realEdit)
            print(result += " Not editing (test mode).");
          else {
            editSnippet("#761", newText);
            triggerTranspilerDirty();
            print(result += " Edited #761. Now " + countLines(newText) + " lines - " + n(l(map) + 1, "total function") + "!");
          }
        } else {
          print(result = "Function " + name + " already defined as " + def);
          if (sameSnippetID(def, snippetID))
            print("Exiting.");
          else
            print("Will not redefine as " + snippetID + ".");
        }
        return result;
      } finally {
        _close(__2);
      }
    }
  }

  static public void addMenuItems(JMenu m, Object... x) {
    fillJMenu(m, x);
  }

  static public void addMenuItems(JPopupMenu m, Object... x) {
    fillJPopupMenu(m, x);
  }

  static public Object dm_getStem(Object moduleOrID) {
    if (isString(moduleOrID) && isIdentifier(((String) moduleOrID)))
      moduleOrID = dm_getService(((String) moduleOrID));
    if (isStringOrIntOrLong(moduleOrID))
      return dm_getStemByID(moduleOrID);
    return or(getOpt(dm_getModule(moduleOrID), "_host"), moduleOrID);
  }

  static public Object dm_callOS(String functionName, Object... args) {
    return call(dm_os(), functionName, args);
  }

  static public void dm_removeTrayIcon(final JComponent icon) {
    if (icon != null) {
      swing(() -> {
        List<JComponent> l = dm_getOSOpt("trayAreaComponents");
        if (l == null)
          return;
        l.remove(icon);
        dm_updateTrayIcons();
      });
    }
  }

  static public <A, B> B mapPutOrRemove(Map<A, B> map, A key, B value) {
    if (map != null && key != null)
      if (value != null)
        return map.put(key, value);
      else
        return map.remove(key);
    return null;
  }

  static public void dm_addTrayIcon(final JComponent icon) {
    if (icon == null)
      return;
    final DynModule m = dm_current_mandatory();
    {
      swing(() -> {
        List<JComponent> l = dm_getOSOpt("trayAreaComponents");
        if (l == null)
          return;
        if (l.contains(icon))
          return;
        l.add(icon);
        dm_updateTrayIcons();
        AutoCloseable __1 = dm_enter(m);
        try {
          dm_ownTimer(__35 -> dm_removeTrayIcon(__35), icon);
        } finally {
          _close(__1);
        }
      });
    }
  }

  static public void dm_requireSnippetUpdatesModule() {
    assertTrue("Update Stefan's OS", dm_subOSConnectorToChannel("snippetUpdates"));
  }

  static public <A> AutoCloseable dm_vmBus_onMessage(final String msg, final VF1<A> onMessage) {
    return dm_ownResource(vmBus_onMessage(msg, onMessage));
  }

  static public <A> AutoCloseable dm_vmBus_onMessage(final String msg, final IVF1<A> onMessage) {
    return dm_ownResource(vmBus_onMessage(msg, ivf1ToVF1(onMessage)));
  }

  static public <A, B> AutoCloseable dm_vmBus_onMessage(final String msg, final IVF2<A, B> onMessage) {
    return dm_ownResource(vmBus_onMessage(msg, ivf2ToVF2(onMessage)));
  }

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

  static public AutoCloseable dm_vmBus_onMessage(String msg, Runnable onMessage) {
    return dm_ownResource(vmBus_onMessage(msg, onMessage));
  }

  static public String getString(Map map, Object key) {
    return map == null ? null : (String) map.get(key);
  }

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

  static public String getString(Object o, Object key) {
    if (o instanceof Map)
      return getString((Map) o, key);
    if (key instanceof String)
      return (String) getOpt(o, (String) key);
    throw fail("Not a string key: " + getClassName(key));
  }

  static public String getString(String key, Object o) {
    return getString(o, (Object) key);
  }

  static public boolean swic(String a, String b) {
    return startsWithIgnoreCase(a, b);
  }

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

  static public String fsI(String id) {
    return formatSnippetID(id);
  }

  static public String fsI(long id) {
    return formatSnippetID(id);
  }

  static public String firstIntAsString(String s) {
    return jextract("<int>", s);
  }

  static public Object callF(Object f, Object... args) {
    try {
      if (f instanceof String)
        return callMC((String) f, args);
      return x30_util.callF(f, args);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  static public <A> A callF(IF0<A> f) {
    return f == null ? null : f.get();
  }

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

  static public <A, B> B callF(IF1<A, B> f, A a) {
    return f == null ? null : f.get(a);
  }

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

  static public Object callMC(String method, Object... args) {
    return call(mc(), method, args);
  }

  static public Object call(Object o) {
    return callF(o);
  }

  static public Object call(Object o, String method, Object... args) {
    return call_withVarargs(o, method, args);
  }

  static public boolean sameSnippetID(String a, String b) {
    if (!isSnippetID(a) || !isSnippetID(b))
      return false;
    return parseSnippetID(a) == parseSnippetID(b);
  }

  static public void dm_reloadModuleInBackground(Object module) {
    dm_callOS("reloadModuleInBackground", dm_getStem(module));
  }

  static public void dm_reloadModuleInBackground() {
    dm_reloadModuleInBackground(dm_current_mandatory_generic());
  }

  static public void dm_onSnippetCreated(final VF1<String> r) {
    dm_requireSnippetUpdatesModule();
    final DynModule m = dm_current_mandatory();
    dm_vmBus_onMessage("snippetUpdate", new VF1<List>() {

      public void get(final List l) {
        try {
          m.q().add(new Runnable() {

            public void run() {
              try {
                String uri = getString(l, 1);
                Matches m = new Matches();
                if (swic(uri, "/insert/", m)) {
                  String snippetID = fsI(firstIntAsString(m.rest()));
                  callF(r, snippetID);
                }
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "//print(\"In module: \" + dm_current_mandatory());\r\n    String uri = getString(...";
            }
          });
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "switch to m.q();\r\n    //print(\"In module: \" + dm_current_mandatory());\r\n    S...";
      }
    });
  }

  static public boolean dm_hadUserActivityInLastNMinutes(double minutes) {
    double seconds = (double) (dm_requireAndCall("#1020622/UserActivityDetector", "secondsSinceLastActivity"));
    boolean activity = seconds <= minutes * 60;
    printVars("seconds", seconds, "minutes", minutes, "activity", activity);
    return activity;
  }

  static public int getSnippetType(String id) {
    if (!isSnippetID(id))
      return 0;
    return getSnippetType(psI(id));
  }

  static public int getSnippetType(long id) {
    IResourceLoader rl = vm_getResourceLoader();
    if (rl != null)
      return rl.getSnippetType(fsI(id));
    return getSnippetType_noResourceLoader(id);
  }

  static public int getSnippetType_noResourceLoader(long id) {
    try {
      if (isLocalSnippetID(id))
        return localSnippetType(id);
      if (isGeneralFileServerSnippet(id))
        return snippetType_data();
      if (isImageServerSnippet(id))
        return snippetType_image();
      return parseInt(trim(loadPageSilently(new URL(tb_mainServer() + "/tb-int/getfield.php?id=" + id + "&field=type" + standardCredentials()))));
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public int snippetType_JavaXInclude() {
    return 42;
  }

  static public Object first(Object list) {
    return first((Iterable) list);
  }

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

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

  static public <A, B> Pair<A, B> first(Map<A, B> map) {
    return mapEntryToPair(first(entrySet(map)));
  }

  static public <A, B> Pair<A, B> first(MultiMap<A, B> mm) {
    if (mm == null)
      return null;
    var e = first(mm.data.entrySet());
    if (e == null)
      return null;
    return pair(e.getKey(), first(e.getValue()));
  }

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

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

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

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

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

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

  static public Byte first(byte[] l) {
    return empty(l) ? null : l[0];
  }

  static public Double first(double[] l) {
    return empty(l) ? null : l[0];
  }

  static public <A> A first(A[] l, IF1<A, Boolean> pred) {
    return firstThat(l, pred);
  }

  static public <A> A first(Iterable<A> l, IF1<A, Boolean> pred) {
    return firstThat(l, pred);
  }

  static public <A> A first(IF1<A, Boolean> pred, Iterable<A> l) {
    return firstThat(pred, l);
  }

  static public <A> A first(AppendableChain<A> a) {
    return a == null ? null : a.element;
  }

  static public List<String> findFunctionDefsAtCurlyLevel(int curlyLevel, String s) {
    return findFunctionDefsAtCurlyLevel(curlyLevel, javaTok(s));
  }

  static public List<String> findFunctionDefsAtCurlyLevel(int targetCurlyLevel, List<String> tok) {
    if (tok instanceof IContentsIndexedList2)
      return findFunctionDefsAtCurlyLevel_indexed(targetCurlyLevel, ((IContentsIndexedList2<String>) tok));
    List<String> functions = new ArrayList();
    var keywords = findFunctionDefs_keywords();
    int n = l(tok);
    int curlyLevel = 0;
    BitSet ignore = new BitSet();
    for (int i = 1; i < n; i += 2) {
      if (ignore.get(i))
        continue;
      String t = tok.get(i);
      if (eqSubList(tok, i, "meta", "", "-", "", "for")) {
        var r = tok_findFirstBlock(tok, i);
        ignore.set(r.start);
        ignore.set(r.end - 1);
      }
      curlyLevel += curlyLevel(t);
      if (curlyLevel == targetCurlyLevel)
        if (keywords.contains(t))
          findFunctionDefs_step(tok, i, functions);
    }
    return functions;
  }

  static public <A extends Window> A disposeWindowAfter(int delay, final A w) {
    if (w != null)
      swingLater(delay, new Runnable() {

        public void run() {
          try {
            w.dispose();
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "w.dispose();";
        }
      });
    return w;
  }

  static public <A extends Window> A disposeWindowAfter(A w, double seconds) {
    return disposeWindowAfter(toMS_int(seconds), w);
  }

  static public <A extends Window> A disposeWindowAfter(double seconds, A w) {
    return disposeWindowAfter(w, seconds);
  }

  static public JFrame showPackedFrameInBottomRightCorner(Component c) {
    return moveToBottomRightCorner(showPackedFrame(c));
  }

  static public JFrame showPackedFrameInBottomRightCorner(String title, Component c) {
    return setFrameTitle(title, showPackedFrameInBottomRightCorner(c));
  }

  static public JLabel jlabel(final String text) {
    return swingConstruct(BetterLabel.class, text);
  }

  static public JLabel jlabel() {
    return jlabel(" ");
  }

  static public JPanel hgridWithSpacing(Object... _parts) {
    return swing(() -> {
      int spacing = 6;
      Object[] parts = _parts;
      if (first(parts) instanceof Integer) {
        spacing = (Integer) first(parts);
        parts = dropFirst(parts);
      }
      JPanel panel = hgrid(parts);
      GridLayout gl = (GridLayout) (panel.getLayout());
      gl.setHgap(spacing);
      gl.setVgap(spacing);
      return panel;
    });
  }

  static public JButton jThreadedButton(String text, Object action) {
    return swing(new F0<JButton>() {

      public JButton get() {
        try {
          String text2 = dropPrefix("[disabled] ", text);
          JButton btn = basicJButton(text2);
          if (l(text2) < l(text))
            btn.setEnabled(false);
          btn.setToolTipText(btn.getText());
          if (action != null)
            btn.addActionListener(actionListenerInNewThread(action, btn));
          return btn;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "S text2 = dropPrefix(\"[disabled] \", text);\r\n    JButton btn = basicJButton(te...";
      }
    });
  }

  static public JButton jThreadedButton(String text, Runnable action) {
    return jThreadedButton(text, (Object) action);
  }

  static public AutoCloseable dm_enter(Object mod) {
    return (AutoCloseable) callOpt(dm_getModule(mod), "enter");
  }

  static public void disposeWindow(final Window window) {
    if (window != null) {
      swing(() -> {
        window.dispatchEvent(new WindowEvent(window, WindowEvent.WINDOW_CLOSING));
        myFrames_list.remove(window);
        window.dispose();
      });
    }
  }

  static public void disposeWindow(final Component c) {
    disposeWindow(getWindow(c));
  }

  static public void disposeWindow(Object o) {
    if (o != null)
      disposeWindow(((Component) o));
  }

  static public void disposeWindow() {
    disposeWindow(heldInstance(Component.class));
  }

  static public <A> A heldInstance(Class<A> c) {
    List<Object> l = holdInstance_l.get();
    for (int i = l(l) - 1; i >= 0; i--) {
      Object o = l.get(i);
      if (isInstanceOf(o, c))
        return (A) o;
    }
    throw fail("No instance of " + className(c) + " held");
  }

  static public String addStandardFunctionWithAnimation() {
    return addStdFunctionWithAnimation();
  }

  static public String addStandardFunctionWithAnimation(String snippetID) {
    return addStdFunctionWithAnimation(snippetID);
  }

  static public JButton jCancelButton() {
    return jCancelButton("Cancel");
  }

  static public JButton jCancelButton(String text) {
    return jbutton(text, new Runnable() {

      public void run() {
        try {
          disposePIFrame(heldInstance(JButton.class));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "disposePIFrame(heldInstance(JButton))";
      }
    });
  }

  static public <A extends Component> A toComponent(A c) {
    return c;
  }

  static public Component toComponent(Swingable c) {
    return c == null ? null : c.visualize();
  }

  static public <A extends JComponent> A applyDefaultMargin(final A c) {
    if (c != null) {
      swing(() -> {
        c.setBorder(BorderFactory.createEmptyBorder(withMargin_defaultWidth, withMargin_defaultWidth, withMargin_defaultWidth, withMargin_defaultWidth));
      });
    }
    return c;
  }

  static public JPanel centerAndSouth(final Component c, final Component s) {
    return swing(new F0<JPanel>() {

      public JPanel get() {
        try {
          JPanel panel = new JPanel(new BorderLayout());
          panel.add(BorderLayout.CENTER, wrap(c));
          if (s != null)
            panel.add(BorderLayout.SOUTH, wrap(s));
          return panel;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "JPanel panel = new JPanel(new BorderLayout);\r\n    panel.add(BorderLayout.CENT...";
      }
    });
  }

  static public int withTopMargin_defaultWidth = 6;

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

  static public JPanel withTopMargin(final int w, final Component c) {
    return swing(new F0<JPanel>() {

      public JPanel get() {
        try {
          JPanel p = new JPanel(new BorderLayout());
          p.setBorder(BorderFactory.createEmptyBorder(w, 0, 0, 0));
          p.add(c);
          return p;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "JPanel p = new JPanel(new BorderLayout);\r\n    p.setBorder(BorderFactory.creat...";
      }
    });
  }

  static public <A extends JComponent> A applyMargin(int top, int left, int bottom, int right, A c) {
    return addMargin(top, left, bottom, right, c);
  }

  static public <A extends JComponent> A applyMargin(int w, A c) {
    return addMargin(w, c);
  }

  static public JPanel centerAndEastWithMarginInbetween(Component c, final Component e) {
    return centerAndEast(c, withLeftMargin(e));
  }

  static public void clickButton(final JButton b) {
    if (b != null) {
      swing(() -> {
        if (b.isEnabled())
          b.doClick();
      });
    }
  }

  static public void messageBox(final String msg) {
    print(msg);
    {
      swing(() -> {
        JOptionPane.showMessageDialog(null, msg, "JavaX", JOptionPane.INFORMATION_MESSAGE);
      });
    }
  }

  static public void messageBox(Throwable e) {
    printStackTrace(e);
    messageBox(hideCredentials(innerException2(e)));
  }

  static public ActionListener actionListener(final Object runnable) {
    return actionListener(runnable, null);
  }

  static public ActionListener actionListener(final Object runnable, final Object instanceToHold) {
    if (runnable instanceof ActionListener)
      return (ActionListener) runnable;
    final Object info = _threadInfo();
    return new java.awt.event.ActionListener() {

      public void actionPerformed(java.awt.event.ActionEvent _evt) {
        try {
          _threadInheritInfo(info);
          AutoCloseable __1 = holdInstance(instanceToHold);
          try {
            pcallF(runnable);
          } finally {
            _close(__1);
          }
        } catch (Throwable __e) {
          messageBox(__e);
        }
      }
    };
  }

  static public KeyListener enterKeyListener(final Object action) {
    return new KeyAdapter() {

      public void keyPressed(KeyEvent ke) {
        if (ke.getKeyCode() == KeyEvent.VK_ENTER)
          pcallF(action);
      }
    };
  }

  static public Runnable rCallOnSelectedListItem(final JList list, final Object action) {
    return new Runnable() {

      public void run() {
        try {
          pcallF(action, getSelectedItem(list));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "pcallF(action, getSelectedItem(list))";
      }
    };
  }

  static public AbstractAction abstractAction(String name, final Object runnable) {
    return new AbstractAction(name) {

      public void actionPerformed(ActionEvent evt) {
        pcallF(runnable);
      }
    };
  }

  static public JTextField jTextField() {
    return jTextField("");
  }

  static public JTextField jTextField(final String text) {
    return swing(new F0<JTextField>() {

      public JTextField get() {
        try {
          JTextField tf = new JTextField(unnull(text));
          standardTextFieldPopupMenu(tf);
          jenableUndoRedo(tf);
          tf.selectAll();
          return tf;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "JTextField tf = new JTextField(unnull(text));\r\n    standardTextFieldPopupMenu...";
      }
    });
  }

  static public JTextField jTextField(Object o) {
    return jTextField(strOrEmpty(o));
  }

  static public boolean newButton_autoToolTip = true;

  static public boolean newButton_autoToolTip() {
    return newButton_autoToolTip;
  }

  static public JButton newButton(final String text, final Object action) {
    return swing(new F0<JButton>() {

      public JButton get() {
        try {
          String text2 = dropPrefix("[disabled] ", text);
          JButton btn = basicJButton(text2);
          if (l(text2) < l(text))
            btn.setEnabled(false);
          if (newButton_autoToolTip) {
            btn.setToolTipText(btn.getText());
          }
          if (action != null)
            btn.addActionListener(actionListener(action, btn));
          return btn;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "S text2 = dropPrefix(\"[disabled] \", text);\r\n    JButton btn = basicJButton(te...";
      }
    });
  }

  static public <A> A swingNu(final Class<A> c, final Object... args) {
    return swingConstruct(c, args);
  }

  static public void onInternalFrameActivated(final JInternalFrame w, final Object r) {
    if (w != null) {
      swing(() -> {
        w.addInternalFrameListener(new InternalFrameAdapter() {

          public void internalFrameActivated(InternalFrameEvent e) {
            pcallF(r);
          }
        });
      });
    }
  }

  static public void swingCallF(final Object r, final Object... args) {
    {
      swing(() -> {
        callF(r, args);
      });
    }
  }

  static public void swingLater(long delay, final Object r) {
    javax.swing.Timer timer = new javax.swing.Timer(toInt(delay), actionListener(wrapAsActivity(r)));
    timer.setRepeats(false);
    timer.start();
  }

  static public void swingLater(Object r) {
    var runnable = toRunnable(r);
    executingSwingCode(runnable);
    SwingUtilities.invokeLater(runnable);
  }

  static public String combinePrintParameters(String s, Object o) {
    return (endsWithLetterOrDigit(s) ? s + ": " : s) + o;
  }

  static public void ping_okInCleanUp() {
    if (ping_pauseAll || ping_anyActions)
      ping_impl(true);
  }

  static public Object getThreadLocal(Object o, String name) {
    ThreadLocal t = (ThreadLocal) (getOpt(o, name));
    return t != null ? t.get() : null;
  }

  static public <A> A getThreadLocal(ThreadLocal<A> tl) {
    return tl == null ? null : tl.get();
  }

  static public <A> A getThreadLocal(ThreadLocal<A> tl, A defaultValue) {
    return or(getThreadLocal(tl), defaultValue);
  }

  static public ThreadLocal<Object> print_byThread_dontCreate() {
    return print_byThread;
  }

  static public boolean isFalse(Object o) {
    return eq(false, o);
  }

  static public String getStackTrace(Throwable throwable) {
    lastException(throwable);
    return getStackTrace_noRecord(throwable);
  }

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

  static public String getStackTrace() {
    return getStackTrace_noRecord(new Throwable());
  }

  static public String getStackTrace(String msg) {
    return getStackTrace_noRecord(new Throwable(msg));
  }

  static public String fixNewLines(String s) {
    int i = indexOf(s, '\r');
    if (i < 0)
      return s;
    int l = s.length();
    StringBuilder out = new StringBuilder(l);
    out.append(s, 0, i);
    for (; i < l; i++) {
      char c = s.charAt(i);
      if (c != '\r')
        out.append(c);
      else {
        out.append('\n');
        if (i + 1 < l && s.charAt(i + 1) == '\n')
          ++i;
      }
    }
    return out.toString();
  }

  static public void print_append(Appendable buf, String s, int max) {
    try {
      synchronized (buf) {
        buf.append(s);
        if (buf instanceof StringBuffer)
          rotateStringBuffer(((StringBuffer) buf), max);
        else if (buf instanceof StringBuilder)
          rotateStringBuilder(((StringBuilder) buf), max);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public void vmBus_send(String msg, Object... args) {
    Object arg = vmBus_wrapArgs(args);
    pcallFAll_minimalExceptionHandling(vm_busListeners_live(), msg, arg);
    pcallFAll_minimalExceptionHandling(vm_busListenersByMessage_live().get(msg), msg, arg);
  }

  static public void vmBus_send(String msg) {
    vmBus_send(msg, (Object) null);
  }

  static public Class mc() {
    return main.class;
  }

  static public String copyTextToClipboardIf(boolean b, String text) {
    if (b)
      copyTextToClipboard(text);
    return text;
  }

  static public String aGlobalID() {
    return randomID(globalIDLength());
  }

  static public String aGlobalID(Random random) {
    return randomID(random, globalIDLength());
  }

  static public void sfBot_p() {
    setConsoleInputIfEmpty("sf");
    callStaticAnswerMethod("sf");
    if (!headless()) {
      swing(() -> {
        JButton btn;
        showControls(jcenteredLine(btn = jbutton("Add new standard function", runnableThread(new Runnable() {

          public void run() {
            try {
              sfBot_doIt();
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "sfBot_doIt()";
          }
        }))));
        btn.requestFocus();
      });
    }
  }

  static public String sfBot_answer(String s) {
    Matches m = new Matches();
    if (match("car", s))
      return carBot_addStandardFunction();
    if (match("car *", s, m)) {
      String id = m.unq(0);
      if (l(id) == 4)
        id = "102" + id;
      carBot_addStandardFunction(id);
      return "OK";
    }
    if (match("synonym * *", s, m) || match("syn * *", s, m))
      return makeSFSynonym(m.unq(0), m.unq(1));
    if (match("sf *", s, m)) {
      String id = m.unq(0);
      if (l(id) == 4)
        id = "103" + id;
      addStdFunctionWithAnimation(id);
      return "OK";
    }
    if (match("sc *", s, m)) {
      String id = m.unq(0);
      if (l(id) == 4)
        id = "103" + id;
      addStdClassWithAnimation(id);
      return "OK";
    }
    if (match("sf", s)) {
      sfBot_doIt();
      return "OK";
    }
    if (match("sc", s)) {
      addStdClassWithAnimation();
      return "OK";
    }
    if (match("rev *", s, m) || match("swap *", s, m))
      return sf_addReversedArguments(m.unq(0));
    if (match("final *", s, m))
      return sf_makeArgumentsFinal(m.unq(0));
    return null;
  }

  static public void sfBot_doIt() {
    addStdFunctionWithAnimation();
  }

  static public void swingAndWait(Runnable r) {
    try {
      if (isAWTThread())
        r.run();
      else {
        r = addThreadInfoToRunnable(r);
        executingSwingCode(r);
        EventQueue.invokeAndWait(r);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public Object swingAndWait(Object f) {
    if (isAWTThread())
      return callF(f);
    else {
      Var result = new Var();
      swingAndWait(new Runnable() {

        public void run() {
          try {
            result.set(callF(f));
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "result.set(callF(f));";
        }
      });
      return result.get();
    }
  }

  static public boolean isEditableComboBox(final JComboBox cb) {
    return cb != null && swing(new F0<Boolean>() {

      public Boolean get() {
        try {
          return cb.isEditable();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return cb.isEditable();";
      }
    });
  }

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

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

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

  static public int[] unnull(int[] l) {
    return l == null ? emptyIntArray() : l;
  }

  static public char[] unnull(char[] l) {
    return l == null ? emptyCharArray() : l;
  }

  static public double[] unnull(double[] l) {
    return l == null ? emptyDoubleArray() : l;
  }

  static public float[] unnull(float[] l) {
    return l == null ? emptyFloatArray() : l;
  }

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

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

  static public <A> A[] unnull(A[] a) {
    return a == null ? (A[]) emptyObjectArray() : a;
  }

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

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

  static public Symbol unnull(Symbol s) {
    return s == null ? emptySymbol() : s;
  }

  static public <A, B> Pair<A, B> unnull(Pair<A, B> p) {
    return p != null ? p : new Pair(null, null);
  }

  static public int unnull(Integer i) {
    return i == null ? 0 : i;
  }

  static public long unnull(Long l) {
    return l == null ? 0L : l;
  }

  static public double unnull(Double l) {
    return l == null ? 0.0 : l;
  }

  static public String strOrNull(Object o) {
    return o == null ? null : str(o);
  }

  static public Class __javax;

  static public Class getJavaX() {
    try {
      return __javax;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public void __setJavaX(Class j) {
    __javax = j;
    _onJavaXSet();
  }

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

  static public List<JFrame> myFrames() {
    return swing(new F0<List<JFrame>>() {

      public List<JFrame> get() {
        try {
          return keysList(myFrames_list);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return keysList(myFrames_list);";
      }
    });
  }

  static public ThreadLocal<List<Object>> holdInstance_l = new ThreadLocal();

  static public AutoCloseable holdInstance(Object o) {
    if (o == null)
      return null;
    listThreadLocalAdd(holdInstance_l, o);
    return new AutoCloseable() {

      public void close() {
        listThreadLocalPopLast(holdInstance_l);
      }
    };
  }

  static public int withMargin_defaultWidth = 6;

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

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

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

  static public JPanel withMargin(final int top, final int left, final int bottom, final int right, final Component c) {
    return swing(new F0<JPanel>() {

      public JPanel get() {
        try {
          JPanel p = marginPanel();
          p.setBorder(BorderFactory.createEmptyBorder(top, left, bottom, right));
          p.add(c);
          return p;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "JPanel p = marginPanel();\r\n    p.setBorder(BorderFactory.createEmptyBorder(to...";
      }
    });
  }

  static public <A> List<A> synchroList() {
    return synchroList(new ArrayList<A>());
  }

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

  static public void pcallFAll(Collection l, Object... args) {
    if (l != null)
      for (Object f : cloneList(l)) pcallF(f, args);
  }

  static public void pcallFAll(Iterator it, Object... args) {
    while (it.hasNext()) pcallF(it.next(), args);
  }

  static public ThreadLocal<Object> print_byThread() {
    synchronized (print_byThread_lock) {
      if (print_byThread == null)
        print_byThread = new ThreadLocal();
    }
    return print_byThread;
  }

  static public AutoCloseable tempInterceptPrint(F1<String, Boolean> f) {
    return tempSetThreadLocal(print_byThread(), f);
  }

  static public Object defaultDefaultClassFinder() {
    return new F1<String, Class>() {

      public Class get(String name) {
        name = replacePrefix("main$main$", "main$", name);
        Class c = get2(name);
        return c;
      }

      public Class get2(String name) {
        if (eq(name, "<main>"))
          return mc();
        {
          Class c = findClass_fullName(name);
          if (c != null)
            return c;
        }
        if (startsWithAny(name, "loadableUtils.utils$", "main$", mcDollar()))
          for (String pkg : ll("loadableUtils.utils$", mcDollar())) {
            String newName = pkg + afterDollar(name);
            {
              Class c = findClass_fullName(newName);
              if (c != null)
                return c;
            }
          }
        return null;
      }
    };
  }

  static public <A> A assertNotNull(A a) {
    assertTrue(a != null);
    return a;
  }

  static public <A> A assertNotNull(String msg, A a) {
    assertTrue(msg, a != null);
    return a;
  }

  static public boolean nempty(Collection c) {
    return !empty(c);
  }

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

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

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

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

  static public boolean nempty(BitSet bs) {
    return !empty(bs);
  }

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

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

  static public boolean nempty(IMultiMap mm) {
    return mm != null && mm.size() != 0;
  }

  static public boolean nempty(Object o) {
    return !empty(o);
  }

  static public boolean nempty(IntRange r) {
    return !empty(r);
  }

  static public boolean nempty(Rect r) {
    return r != null && r.w != 0 && r.h != 0;
  }

  static public boolean nempty(MultiSet ms) {
    return ms != null && !ms.isEmpty();
  }

  static public String programIDWithCase() {
    return nempty(caseID()) ? programID() + "/" + quoteUnlessIdentifierOrInteger(caseID()) : programID();
  }

  static public Object dm_getModule(Object moduleOrID) {
    if (moduleOrID == null || eq(moduleOrID, ""))
      return null;
    if (isString(moduleOrID) && isIdentifier(((String) moduleOrID)))
      return dm_getService(((String) moduleOrID));
    if (isStringOrIntOrLong(moduleOrID))
      return dm_callOS("getDynModuleByID", str(moduleOrID));
    return dm_resolveModule(moduleOrID);
  }

  static public Object call_withVarargs(Object o, String methodName, Object... args) {
    try {
      if (o == null)
        return null;
      if (o instanceof Class) {
        Class c = (Class) o;
        _MethodCache cache = callOpt_getCache(c);
        Method me = cache.findStaticMethod(methodName, args);
        if (me != null)
          return invokeMethod(me, null, args);
        List<Method> methods = cache.cache.get(methodName);
        if (methods != null)
          methodSearch: for (Method m : methods) {
            {
              if (!(m.isVarArgs()))
                continue;
            }
            {
              if (!(isStaticMethod(m)))
                continue;
            }
            Object[] newArgs = massageArgsForVarArgsCall(m, args);
            if (newArgs != null)
              return invokeMethod(m, null, newArgs);
          }
        throw fail("Method " + c.getName() + "." + methodName + "(" + joinWithComma(classNames(args)) + ") not found");
      } else {
        Class c = o.getClass();
        _MethodCache cache = callOpt_getCache(c);
        Method me = cache.findMethod(methodName, args);
        if (me != null)
          return invokeMethod(me, o, args);
        List<Method> methods = cache.cache.get(methodName);
        if (methods != null)
          methodSearch: for (Method m : methods) {
            {
              if (!(m.isVarArgs()))
                continue;
            }
            Object[] newArgs = massageArgsForVarArgsCall(m, args);
            if (newArgs != null)
              return invokeMethod(m, o, newArgs);
          }
        throw fail("Method " + c.getName() + "." + methodName + "(" + joinWithComma(classNames(args)) + ") not found");
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public List dm_modulesOfType(String type) {
    List<String> l = splitAtSlash(type);
    if (l(l) == 2)
      return filterByProgramIDAndShortClassName(dm_listModules(), first(l), second(l));
    else
      return filterByShortClassName(dm_listModules(), type);
  }

  static public int imageIcon_cacheSize = 10;

  static public boolean imageIcon_verbose = false;

  static public Map<String, ImageIcon> imageIcon_cache;

  static public Lock imageIcon_lock = lock();

  static public ThreadLocal<Boolean> imageIcon_fixGIF = new ThreadLocal();

  static public ImageIcon imageIcon(String imageID) {
    try {
      if (imageID == null)
        return null;
      Lock __0 = imageIcon_lock;
      lock(__0);
      try {
        if (imageIcon_cache == null)
          imageIcon_cache = new MRUCache(imageIcon_cacheSize);
        imageID = fsI(imageID);
        ImageIcon ii = imageIcon_cache.get(imageID);
        if (ii == null) {
          if (imageIcon_verbose)
            print("Loading image icon: " + imageID);
          File f = loadBinarySnippet(imageID);
          Boolean b = imageIcon_fixGIF.get();
          if (!isFalse(b))
            ii = new ImageIcon(loadBufferedImageFixingGIFs(f));
          else
            ii = new ImageIcon(f.toURI().toURL());
        } else
          imageIcon_cache.remove(imageID);
        imageIcon_cache.put(imageID, ii);
        return ii;
      } finally {
        unlock(__0);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public ImageIcon imageIcon(File f) {
    try {
      return new ImageIcon(f.toURI().toURL());
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public ImageIcon imageIcon(Image img) {
    return img == null ? null : new ImageIcon(img);
  }

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

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

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

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

  static public <A> void pcallF(VF1<A> f, A a) {
    try {
      {
        if (f != null)
          f.get(a);
      }
    } catch (Throwable __e) {
      pcallFail(__e);
    }
  }

  static public Object pcallF(Runnable r) {
    try {
      {
        if (r != null)
          r.run();
      }
    } catch (Throwable __e) {
      pcallFail(__e);
    }
    return null;
  }

  static public <A> A pcallF(IF0<A> f) {
    try {
      return f == null ? null : f.get();
    } catch (Throwable __e) {
      pcallFail(__e);
    }
    return null;
  }

  static public <A, B> B pcallF(IF1<A, B> f, A a) {
    try {
      return f == null ? null : f.get(a);
    } catch (Throwable __e) {
      pcallFail(__e);
    }
    return null;
  }

  static public String defaultThreadName_name;

  static public String defaultThreadName() {
    if (defaultThreadName_name == null)
      defaultThreadName_name = "A thread by " + programID();
    return defaultThreadName_name;
  }

  static public Runnable wrapAsActivity(Object r) {
    if (r == null)
      return null;
    Runnable r2 = toRunnable(r);
    Object mod = dm_current_generic();
    if (mod == null)
      return r2;
    return new Runnable() {

      public void run() {
        try {
          AutoCloseable c = (AutoCloseable) (rcall("enter", mod));
          AutoCloseable __1 = c;
          try {
            r2.run();
          } finally {
            _close(__1);
          }
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "AutoCloseable c =  (AutoCloseable) (rcall enter(mod));\r\n    temp c;\r\n    r2.r...";
      }
    };
  }

  static public Thread newThread(Object runnable) {
    return new BetterThread(_topLevelErrorHandling(toRunnable(runnable)));
  }

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

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

  static public Runnable toRunnable(final Object o) {
    if (o == null)
      return null;
    if (o instanceof Runnable)
      return (Runnable) o;
    if (o instanceof String)
      throw fail("callF_legacy");
    return new Runnable() {

      public void run() {
        try {
          callF(o);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "callF(o)";
      }
    };
  }

  static public Map<Thread, Boolean> _registerThread_threads;

  static public Object _onRegisterThread;

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

  static public void _registerThread() {
    _registerThread(Thread.currentThread());
  }

  static public boolean containsWord(String s, String word) {
    return cic(javaTokC(s), word);
  }

  static public void checkMarkAnimation_bottomLeft(String text, double seconds) {
    showAnimationInBottomLeftCorner("#1005392", text, seconds);
  }

  static public JWindow infoBox(Object text) {
    return infoMessage(strOrNull(text));
  }

  static public JWindow infoBox(String text) {
    return infoMessage(text);
  }

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

  static public JWindow infoBox(Throwable e) {
    return infoMessage(e);
  }

  static public AutoCloseable tempShowLoadingAnimation() {
    return tempShowLoadingAnimation("Hold on user...");
  }

  static public AutoCloseable tempShowLoadingAnimation(String text) {
    try {
      return tempDisposeWindow(showAnimationInTopRightCorner("#1003543", text));
    } catch (Throwable __e) {
      return null;
    }
  }

  static public Snippet findLatestInclude() {
    return first(snippetsFromHTML(tb_mainServer() + "/tb/snippets.php?type=42&order=created&reverse=1&limit=1&author=1" + standardCredentials()));
  }

  static public <A> A printStructure(String prefix, A o) {
    if (endsWithLetter(prefix))
      prefix += ": ";
    print(prefix + structureForUser(o));
    return o;
  }

  static public <A> A printStructure(A o) {
    print(structureForUser(o));
    return o;
  }

  static public boolean empty(Collection c) {
    return c == null || c.isEmpty();
  }

  static public boolean empty(Iterable c) {
    return c == null || !c.iterator().hasNext();
  }

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

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

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

  static public boolean empty(BitSet bs) {
    return bs == null || bs.isEmpty();
  }

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

  static public boolean empty(Iterator i) {
    return i == null || !i.hasNext();
  }

  static public boolean empty(double[] a) {
    return a == null || a.length == 0;
  }

  static public boolean empty(float[] a) {
    return a == null || a.length == 0;
  }

  static public boolean empty(int[] a) {
    return a == null || a.length == 0;
  }

  static public boolean empty(long[] a) {
    return a == null || a.length == 0;
  }

  static public boolean empty(byte[] a) {
    return a == null || a.length == 0;
  }

  static public boolean empty(short[] a) {
    return a == null || a.length == 0;
  }

  static public boolean empty(MultiSet ms) {
    return ms == null || ms.isEmpty();
  }

  static public boolean empty(IMultiMap mm) {
    return mm == null || mm.size() == 0;
  }

  static public boolean empty(File f) {
    return getFileSize(f) == 0;
  }

  static public boolean empty(IntRange r) {
    return r == null || r.empty();
  }

  static public boolean empty(Rect r) {
    return !(r != null && r.w != 0 && r.h != 0);
  }

  static public boolean empty(Chain c) {
    return c == null;
  }

  static public boolean empty(AppendableChain c) {
    return c == null;
  }

  static public boolean empty(IntSize l) {
    return l == null || l.size() == 0;
  }

  static public String firstNotStartingWith(Collection<String> l, String prefix) {
    for (String s : unnull(l)) if (!startsWith(s, prefix))
      return s;
    return null;
  }

  static public Map<String, String> parseStdFunctionsList(String snippetSrc) {
    return parseStdFunctionsList(snippetSrc, new LinkedHashMap());
  }

  static public Map<String, String> parseStdFunctionsList(String snippetSrc, Map<String, String> map) {
    List<String> tok = javaTok(snippetSrc);
    int i = findCodeTokens(tok, "standardFunctions", "=", "litlist", "(");
    int opening = i + 6;
    int closing = indexOf(tok, ")", opening) - 1;
    for (i = opening + 2; i < closing; i += 4) {
      String[] f = unquote(tok.get(i)).split("/");
      map.put(f[1], f[0]);
    }
    return map;
  }

  static public String addToStdFunctionsList(String list, String fname, String snippetID) {
    List<String> tok = javaTok(list);
    int i = findCodeTokens(tok, "standardFunctions", "=", "litlist", "(");
    int opening = i + 6;
    tok.set(opening, tok.get(opening) + "\n  \"" + formatSnippetID(snippetID) + "/" + fname + "\",");
    return join(tok);
  }

  static public String unidiff(String a, String b) {
    int contextSize = 1;
    return fromLines(BlockDiffer.generateUniDiff(toLines(a), toLines(b), contextSize));
  }

  static public String editSnippet(String id, String text) {
    if (isLocalSnippetID(id)) {
      saveLocalSnippet(id, text);
      return "Snippet saved";
    }
    return editSnippet(id, text, standardCredentialsUser(), standardCredentialsPass());
  }

  static public String editSnippet(String id, String text, String user, String pass) {
    if (!isSnippetID(id))
      throw fail("Need snippet ID");
    Map query = litmap("id", parseSnippetID(id), "text", text, "_user", user, "_pass", pass, "len", lUtf8(text));
    String url = tb_mainServer() + "/tb-int/update_snippet_text.php";
    String page = doPost(query, url);
    if (!page.contains("OK"))
      throw fail("Error editing snippet " + id + ": " + quote(page));
    return page + " - edited " + fsI(id);
  }

  static public int countLines(String s) {
    return l(toLines(s));
  }

  static public String n(long l, String name) {
    return l + " " + trim(l == 1 ? singular(name) : getPlural(name));
  }

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

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

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

  static public String n(MultiSet ms, String name) {
    return n(l(ms), name);
  }

  static public void fillJMenu(final JMenu m, Object... x) {
    if (x == null)
      return;
    for (int i = 0; i < l(x); i++) {
      Object o = x[i], y = get(x, i + 1);
      if (o instanceof List)
        fillJMenu(m, asArray((List) o));
      else if (isMenuSeparatorIndicator(o)) {
        if (menuItemCount(m) != 0)
          m.addSeparator();
      } else if (o instanceof String && isRunnableX(y)) {
        m.add(jmenuItem((String) o, y));
        ++i;
      } else if (o instanceof JMenuItem)
        m.add((JMenuItem) o);
      else if (o instanceof String || o instanceof Action || o instanceof Component)
        call(m, "add", o);
      else if (o == null && y instanceof Runnable)
        ++i;
      else if (o != null)
        print("Unknown menu item: " + o);
    }
  }

  static public void fillJPopupMenu(JPopupMenu m, Object... x) {
    if (x == null)
      return;
    for (int i = 0; i < l(x); i++) {
      Object o = x[i], y = get(x, i + 1);
      if (o instanceof IVF1)
        callF(o, m);
      else if (o instanceof List)
        fillJPopupMenu(m, asArray((List) o));
      else if (isMenuSeparatorIndicator(o))
        m.addSeparator();
      else if (o instanceof String && isRunnableX(y)) {
        m.add(jmenuItem((String) o, y));
        ++i;
      } else if (o instanceof JMenuItem)
        m.add((JMenuItem) o);
      else if (o instanceof String || o instanceof Action || o instanceof Component)
        call(m, "add", o);
      else if (o != null)
        print("Unknown menu item: " + o);
    }
  }

  static public boolean isString(Object o) {
    return o instanceof String;
  }

  static public boolean isIdentifier(String s) {
    return isJavaIdentifier(s);
  }

  static public Object dm_getService(String serviceName) {
    return empty(serviceName) ? null : dm_getModule(vmBus_query(assertIdentifier(serviceName)));
  }

  static public boolean isStringOrIntOrLong(Object o) {
    return o instanceof String || o instanceof Integer || o instanceof Long;
  }

  static public Object dm_getStemByID(Object id) {
    return dm_callOS("getModuleByID", str(id));
  }

  static public <A> A or(A a, A b) {
    return a != null ? a : b;
  }

  static public Object dm_os() {
    {
      var __1 = vm_generalMap_get("stefansOS");
      if (__1 != null)
        return __1;
    }
    return creator();
  }

  static public <A> A dm_getOSOpt(String field) {
    return (A) getOpt(dm_os(), field);
  }

  static public void dm_updateTrayIcons() {
    dm_callOSOpt("updateMenuBar");
  }

  static public void dm_ownTimer(Object resource, Object closerHelper) {
    call(dm_current_generic(), "ownTimer", resource, closerHelper);
  }

  static public <A> A dm_ownTimer(A resource) {
    call(dm_current_generic(), "ownTimer", resource);
    return resource;
  }

  static public <A> void dm_ownTimer(IVF1<A> closerHelper, A resource) {
    dm_ownTimer(resource, closerHelper);
  }

  static public boolean dm_subOSConnectorToChannel(String channel) {
    if (!hasMethodNamed(dm_os(), "subConnectorToChannel"))
      return false;
    dm_osCall("subConnectorToChannel", channel);
    return true;
  }

  static public <A extends AutoCloseable> A dm_ownResource(A resource) {
    dm_currentModuleMandatory().ownResource(resource);
    return resource;
  }

  static public <A> AutoCloseable vmBus_onMessage(String msg, IVF1<A> onMessage) {
    return vmBus_onMessage(msg, ivf1ToVF1(onMessage));
  }

  static public <A> AutoCloseable vmBus_onMessage(final String msg, final VF1<A> onMessage) {
    Map<String, Set> map = vm_busListenersByMessage_live();
    synchronized (map) {
      Set listeners = map.get(msg);
      if (listeners == null)
        map.put(msg, listeners = syncIdentityHashSet());
      return tempAdd(listeners, new VF2<String, Object>() {

        public void get(String _msg, Object arg) {
          try {
            callF(onMessage, arg);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "callF(onMessage, arg)";
        }
      });
    }
  }

  static public <A, B> AutoCloseable vmBus_onMessage(String msg, final VF2<A, B> onMessage) {
    return vmBus_onMessage(msg, new VF1<Object[]>() {

      public void get(Object[] o) {
        try {
          callF(onMessage, first(o), second(o));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "callF(onMessage, first(o), second(o));";
      }
    });
  }

  static public <A, B> AutoCloseable vmBus_onMessage(String msg, final IVF2<A, B> onMessage) {
    return vmBus_onMessage(msg, new VF1<Object[]>() {

      public void get(Object[] o) {
        try {
          callF(onMessage, first(o), second(o));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "callF(onMessage, first(o), second(o));";
      }
    });
  }

  static public AutoCloseable vmBus_onMessage(String msg, Runnable onMessage) {
    return vmBus_onMessage(msg, runnableToVF1(onMessage));
  }

  static public <A> VF1<A> ivf1ToVF1(IVF1<A> f) {
    return f == null ? null : new VF1<A>() {

      public void get(A a) {
        try {
          f.get(a);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "f.get(a)";
      }
    };
  }

  static public <A, B> VF2<A, B> ivf2ToVF2(IVF2<A, B> f) {
    return f == null ? null : new VF2<A, B>() {

      public void get(A a, B b) {
        try {
          f.get(a, b);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "f.get(a, b)";
      }
    };
  }

  static public RuntimeException fail() {
    throw new RuntimeException("fail");
  }

  static public RuntimeException fail(Throwable e) {
    throw asRuntimeException(e);
  }

  static public RuntimeException fail(Object msg) {
    throw new RuntimeException(String.valueOf(msg));
  }

  static public RuntimeException fail(Object... objects) {
    throw new Fail(objects);
  }

  static public RuntimeException fail(String msg) {
    throw new RuntimeException(msg == null ? "" : msg);
  }

  static public RuntimeException fail(String msg, Throwable innerException) {
    throw new RuntimeException(msg, innerException);
  }

  static public String getClassName(Object o) {
    return o == null ? "null" : o instanceof Class ? ((Class) o).getName() : o.getClass().getName();
  }

  static public boolean startsWithIgnoreCase(String a, String b) {
    return regionMatchesIC(a, 0, b, 0, b.length());
  }

  static public String substring(String s, int x) {
    return substring(s, x, strL(s));
  }

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

  static public String substring(String s, IntRange r) {
    return r == null ? null : substring(s, r.start, r.end);
  }

  static public String substring(String s, CharSequence l) {
    return substring(s, lCharSequence(l));
  }

  static public String formatSnippetID(String id) {
    return "#" + parseSnippetID(id);
  }

  static public String formatSnippetID(long id) {
    return "#" + id;
  }

  static public String jextract(String pat, String s) {
    return jextract(pat, javaTok(s));
  }

  static public String jextract(String pat, List<String> tok) {
    List<String> tokpat = javaTok(pat);
    jfind_preprocess(tokpat);
    int i = jfind(tok, tokpat);
    if (i < 0)
      return null;
    int j = i + l(tokpat) - 2;
    return joinSubList(tok, i, j);
  }

  public static boolean isSnippetID(String s) {
    try {
      parseSnippetID(s);
      return true;
    } catch (RuntimeException e) {
      return false;
    }
  }

  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 public Object dm_requireAndCall(String moduleLibID, String method, Object... args) {
    return dm_requireAndCallModule(moduleLibID, method, args);
  }

  static public void printVars(Object... params) {
    printVars_str(params);
  }

  static public long psI(String snippetID) {
    return parseSnippetID(snippetID);
  }

  static public IResourceLoader vm_getResourceLoader() {
    return proxy(IResourceLoader.class, vm_generalMap_get("_officialResourceLoader"));
  }

  static public boolean isLocalSnippetID(String snippetID) {
    return isSnippetID(snippetID) && isLocalSnippetID(psI(snippetID));
  }

  static public boolean isLocalSnippetID(long snippetID) {
    return snippetID >= 1000 && snippetID <= 9999;
  }

  static public int localSnippetType(String snippetID) {
    return localSnippetType(psI(snippetID));
  }

  static public int localSnippetType(long snippetID) {
    return parseIntOpt(getFileInfoField(localSnippetFile(snippetID), "Type"));
  }

  static public boolean isGeneralFileServerSnippet(long id) {
    return id >= 1400000 && id < 1500000;
  }

  static public int snippetType_data() {
    return 37;
  }

  static public boolean isImageServerSnippet(long id) {
    return id >= 1100000 && id < 1200000;
  }

  static public int snippetType_image() {
    return 23;
  }

  static public int parseInt(String s) {
    return emptyString(s) ? 0 : Integer.parseInt(s);
  }

  static public int parseInt(char c) {
    return Integer.parseInt(str(c));
  }

  static public String trim(String s) {
    return s == null ? null : s.trim();
  }

  static public String trim(StringBuilder buf) {
    return buf.toString().trim();
  }

  static public String trim(StringBuffer buf) {
    return buf.toString().trim();
  }

  static public String tb_mainServer_default = "https://code.botcompany.de:9898";

  static public Object tb_mainServer_override;

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

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

  static public boolean tb_mainServer_isDefault() {
    return eq(tb_mainServer(), tb_mainServer_default);
  }

  static public String standardCredentials() {
    String user = standardCredentialsUser();
    String pass = standardCredentialsPass();
    if (nempty(user) && nempty(pass))
      return "&_user=" + urlencode(user) + "&_pass=" + urlencode(pass);
    return "";
  }

  static public <A, B> Pair<A, B> mapEntryToPair(Map.Entry<A, B> e) {
    return e == null ? null : pair(e.getKey(), e.getValue());
  }

  static public <A, B> Set<Map.Entry<A, B>> entrySet(Map<A, B> map) {
    return _entrySet(map);
  }

  static public <A, B> Pair<A, B> pair(A a, B b) {
    return new Pair(a, b);
  }

  static public <A> Pair<A, A> pair(A a) {
    return new Pair(a, a);
  }

  static public <A> A firstThat(Iterable<A> l, IF1<A, Boolean> pred) {
    for (A a : unnullForIteration(l)) if (pred.get(a))
      return a;
    return null;
  }

  static public <A> A firstThat(A[] l, IF1<A, Boolean> pred) {
    for (A a : unnullForIteration(l)) if (pred.get(a))
      return a;
    return null;
  }

  static public <A> A firstThat(IF1<A, Boolean> pred, Iterable<A> l) {
    return firstThat(l, pred);
  }

  static public <A> A firstThat(IF1<A, Boolean> pred, A[] l) {
    return firstThat(l, pred);
  }

  static public int javaTok_n, javaTok_elements;

  static public boolean javaTok_opt = false;

  static public List<String> javaTok(String s) {
    ++javaTok_n;
    ArrayList<String> tok = new ArrayList();
    int l = s == null ? 0 : s.length();
    int i = 0;
    while (i < l) {
      int j = i;
      char c, d;
      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 && !regionMatches(s, j, "*/"));
          j = Math.min(j + 2, l);
        } else if (c == '/' && d == '/') {
          do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
        } else
          break;
      }
      tok.add(javaTok_substringN(s, i, j));
      i = j;
      if (i >= l)
        break;
      c = s.charAt(i);
      d = i + 1 >= l ? '\0' : s.charAt(i + 1);
      if (c == '\'' && Character.isJavaIdentifierStart(d) && i + 2 < l && "'\\".indexOf(s.charAt(i + 2)) < 0) {
        j += 2;
        while (j < l && Character.isJavaIdentifierPart(s.charAt(j))) ++j;
      } else if (c == '\'' || c == '"') {
        char opener = c;
        ++j;
        while (j < l) {
          int c2 = s.charAt(j);
          if (c2 == opener || c2 == '\n' && opener == '\'') {
            ++j;
            break;
          } else if (c2 == '\\' && j + 1 < l)
            j += 2;
          else
            ++j;
        }
      } else if (Character.isJavaIdentifierStart(c))
        do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || s.charAt(j) == '\''));
      else if (Character.isDigit(c)) {
        do ++j; while (j < l && Character.isDigit(s.charAt(j)));
        if (j < l && s.charAt(j) == 'L')
          ++j;
      } else if (c == '[' && d == '[') {
        do ++j; while (j < l && !regionMatches(s, j, "]]"));
        j = Math.min(j + 2, l);
      } else if (c == '[' && d == '=' && i + 2 < l && s.charAt(i + 2) == '[') {
        do ++j; while (j + 2 < l && !regionMatches(s, j, "]=]"));
        j = Math.min(j + 3, l);
      } else
        ++j;
      tok.add(javaTok_substringC(s, i, j));
      i = j;
    }
    if ((tok.size() % 2) == 0)
      tok.add("");
    javaTok_elements += tok.size();
    return tok;
  }

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

  static public List<String> findFunctionDefsAtCurlyLevel_indexed(int targetCurlyLevel, IContentsIndexedList2<String> tok) {
    List<String> functions = new ArrayList();
    OrderedMultiIterator<HasIndex> multiIterator = new OrderedMultiIterator();
    for (var keyword : findFunctionDefs_keywords()) multiIterator.add(tok.indicesOf_treeSetOfHasIndex(keyword));
    multiIterator.add(tok.indicesOf_treeSetOfHasIndex("{"));
    multiIterator.add(tok.indicesOf_treeSetOfHasIndex("}"));
    multiIterator.add(tok.indicesOf_treeSetOfHasIndex("meta"));
    int curlyLevel = 0;
    BitSet ignore = new BitSet();
    while (multiIterator.hasNext()) {
      HasIndex idx = multiIterator.next();
      int i = idx.get();
      if (ignore.get(i))
        continue;
      String t = tok.get(i);
      if (eq(t, "meta")) {
        if (eqSubList(tok, i + 1, "", "-", "", "for")) {
          var r = tok_findFirstBlock(tok, i);
          ignore.set(r.start);
          ignore.set(r.end - 1);
        }
      } else if (eq(t, "{"))
        ++curlyLevel;
      else if (eq(t, "}"))
        --curlyLevel;
      else if (curlyLevel == targetCurlyLevel)
        findFunctionDefs_step(tok, i, functions);
    }
    return functions;
  }

  static public Set<String> findFunctionDefs_keywords_cache;

  static public Set<String> findFunctionDefs_keywords() {
    if (findFunctionDefs_keywords_cache == null)
      findFunctionDefs_keywords_cache = findFunctionDefs_keywords_load();
    return findFunctionDefs_keywords_cache;
  }

  static public Set<String> findFunctionDefs_keywords_load() {
    return new HashSet(splitAtSpace("static svoid ssvoid ssynchronized sbool sS sO sL"));
  }

  static public <A> boolean eqSubList(List<A> l, List<A> pat, int i) {
    return subListEquals(l, pat, i);
  }

  static public <A> boolean eqSubList(List<A> l, int i, A... pat) {
    return subListEquals(l, i, pat);
  }

  static public IntRange tok_findFirstBlock(List<String> tok, int i) {
    i = indexOf(tok, i, "{");
    if (i < 0)
      return null;
    return intRange(i, findEndOfBlock(tok, i));
  }

  static public int curlyLevel(String token) {
    if (eq(token, "{"))
      return 1;
    if (eq(token, "}"))
      return -1;
    return 0;
  }

  static public List<String> findFunctionDefs(String s) {
    return findFunctionDefs(javaTok(s));
  }

  static public List<String> findFunctionDefs(List<String> tok) {
    List<String> functions = new ArrayList();
    var keywords = findFunctionDefs_keywords();
    if (tok instanceof IContentsIndexedList2) {
      for (String keyword : keywords) {
        TreeSet<HasIndex> indices = ((IContentsIndexedList2) tok).indicesOf_treeSetOfHasIndex(keyword);
        if (indices != null)
          for (HasIndex i : indices) findFunctionDefs_step(tok, i.idx, functions);
      }
    } else {
      int n = l(tok);
      for (int i = 1; i < n; i += 2) if (keywords.contains(tok.get(i)))
        findFunctionDefs_step(tok, i, functions);
    }
    return functions;
  }

  static public void findFunctionDefs_step(List<String> tok, int i, List<String> functions) {
    String t = tok.get(i);
    int j = i + 2, n = l(tok);
    while (j < n && !findFunctionsDefs_checkToken(tok.get(j))) j += 2;
    if (isIdentifier(tok.get(j - 2)) && eqGet(tok, j, "(") || eqGet(tok, j, "{") && eq(t, "svoid"))
      functions.add(tok.get(j - 2));
  }

  static public boolean findFunctionsDefs_checkToken(String t) {
    if (t.length() != 1)
      return false;
    char c = t.charAt(0);
    return c == ';' || c == '=' || c == '(' || c == '{';
  }

  static public int toMS_int(double seconds) {
    return toInt_checked((long) (seconds * 1000));
  }

  static public int moveToBottomRightCorner_insetX = 10;

  static public int moveToBottomRightCorner_insetY = 10;

  static public <A extends Component> A moveToBottomRightCorner(A c) {
    return moveToBottomRightCorner(c, moveToBottomRightCorner_insetX, moveToBottomRightCorner_insetY);
  }

  static public <A extends Component> A moveToBottomRightCorner(A c, final int insetX, final int insetY) {
    final Window w = getWindow(c);
    if (w != null) {
      swing(() -> {
        Rectangle r = maxWindowBounds();
        w.setLocation(r.x + r.width - w.getWidth() - insetX, r.y + r.height - w.getHeight() - insetY);
      });
    }
    return c;
  }

  static public JFrame showPackedFrame(String title, Component contents) {
    return packFrame(showFrame(title, contents));
  }

  static public JFrame showPackedFrame(Component contents) {
    return packFrame(showFrame(contents));
  }

  static public <A> A setFrameTitle(A c, final String title) {
    final Frame f = getAWTFrame(c);
    if (f != null) {
      swing(() -> {
        f.setTitle(title);
      });
    }
    return c;
  }

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

  static public JFrame setFrameTitle(String title) {
    Object f = getOpt(mc(), "frame");
    if (f instanceof JFrame)
      return setFrameTitle((JFrame) f, title);
    return null;
  }

  static public <A> A swingConstruct(final Class<A> c, final Object... args) {
    return swing(new F0<A>() {

      public A get() {
        try {
          return nuObject(c, args);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return nuObject(c, args);";
      }
    });
  }

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

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

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

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

  static public <A> List<A> dropFirst(int n, Iterable<A> i) {
    return dropFirst(n, toList(i));
  }

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

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

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

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

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

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

  static public <A> Chain<A> dropFirst(Chain<A> c) {
    return c == null ? null : c.next;
  }

  static public JPanel hgrid(final Object... parts) {
    return swing(new F0<JPanel>() {

      public JPanel get() {
        try {
          JPanel panel = new JPanel();
          Object[] _parts = flattenArray2(parts);
          panel.setLayout(new GridLayout(1, _parts.length));
          smartAdd(panel, _parts);
          return panel;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "new JPanel panel;\r\n    O[] _parts = flattenArray2(parts);\r\n    panel.setLayou...";
      }
    });
  }

  static public String dropPrefix(String prefix, String s) {
    return s == null ? null : s.startsWith(prefix) ? s.substring(l(prefix)) : s;
  }

  static public JButton basicJButton(String text) {
    return swing(() -> new JButton(text));
  }

  static public ActionListener actionListenerInNewThread(final Object runnable) {
    return actionListenerInNewThread(runnable, null);
  }

  static public ActionListener actionListenerInNewThread(final Object runnable, final Object instanceToHold) {
    if (runnable instanceof ActionListener)
      return (ActionListener) runnable;
    return new java.awt.event.ActionListener() {

      public void actionPerformed(java.awt.event.ActionEvent _evt) {
        try {
          startThread("Action Listener", new Runnable() {

            public void run() {
              try {
                AutoCloseable __1 = holdInstance(instanceToHold);
                try {
                  callF(runnable);
                } finally {
                  _close(__1);
                }
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "AutoCloseable __1 = holdInstance(instanceToHold); try {\r\n      callF(runnable...";
            }
          });
        } catch (Throwable __e) {
          messageBox(__e);
        }
      }
    };
  }

  static public Window getWindow(Object o) {
    if (!(o instanceof Component))
      return null;
    return swing(() -> {
      Component c = (Component) o;
      while (c != null) {
        if (c instanceof Window)
          return ((Window) c);
        c = c.getParent();
      }
      return null;
    });
  }

  static public boolean isInstanceOf(Object o, Class type) {
    return type.isInstance(o);
  }

  static public String className(Object o) {
    return getClassName(o);
  }

  static public void disposePIFrame(Component c) {
    disposePossiblyInternalFrame(c);
  }

  static public JComponent wrap(Object swingable) {
    return _recordNewSwingComponent(wrap_2(swingable));
  }

  static public JComponent wrap_2(Object swingable) {
    if (swingable == null)
      return null;
    JComponent c;
    if (swingable instanceof Component)
      c = componentToJComponent((Component) swingable);
    else if (swingable instanceof Swingable)
      c = componentToJComponent(((Swingable) swingable).visualize());
    else
      c = componentToJComponent((Component) callOpt(swingable, "swing"));
    if (c instanceof JTable || c instanceof JList || c instanceof JTextArea || c instanceof JEditorPane || c instanceof JTextPane || c instanceof JTree)
      return jscroll(c);
    return c == null ? jlabel(str(swingable)) : c;
  }

  static public <A extends JComponent> A addMargin(final int top, final int left, final int bottom, final int right, final A c) {
    if (c != null) {
      swing(() -> {
        Border margin = BorderFactory.createEmptyBorder(top, left, bottom, right);
        c.setBorder(jCompoundBorder(c.getBorder(), margin));
      });
    }
    return c;
  }

  static public <A extends JComponent> A addMargin(int w, A c) {
    return addMargin(w, w, w, w, c);
  }

  static public JPanel centerAndEast(final Component c, final Component e) {
    return swing(new F0<JPanel>() {

      public JPanel get() {
        try {
          JPanel panel = new JPanel(new BorderLayout());
          panel.add(BorderLayout.CENTER, wrap(c));
          panel.add(BorderLayout.EAST, wrap(e));
          return panel;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "JPanel panel = new JPanel(new BorderLayout);\r\n    panel.add(BorderLayout.CENT...";
      }
    });
  }

  static public int withLeftMargin_defaultWidth = 6;

  static public JPanel withLeftMargin(Swingable c) {
    return withLeftMargin(toComponent(c));
  }

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

  static public JPanel withLeftMargin(int margin, Swingable c) {
    return withLeftMargin(margin, toComponent(c));
  }

  static public JPanel withLeftMargin(int margin, Component c) {
    return swing(new F0<JPanel>() {

      public JPanel get() {
        try {
          JPanel p = new JPanel(new BorderLayout());
          p.setBorder(BorderFactory.createEmptyBorder(0, margin, 0, 0));
          p.add(c);
          return p;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "JPanel p = new JPanel(new BorderLayout);\r\n    p.setBorder(BorderFactory.creat...";
      }
    });
  }

  static public <A extends Throwable> A printStackTrace(A e) {
    if (e != null)
      print(getStackTrace(e));
    return e;
  }

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

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

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

  static public String hideCredentials(URL url) {
    return url == null ? null : hideCredentials(str(url));
  }

  static public String hideCredentials(String url) {
    try {
      if (startsWithOneOf(url, "http://", "https://") && isAGIBlueDomain(hostNameFromURL(url)))
        return url;
    } catch (Throwable e) {
      print("HideCredentials", e);
    }
    return url.replaceAll("([&?])(_pass|key|cookie)=[^&\\s\"]*", "$1$2=<hidden>");
  }

  static public String hideCredentials(Object o) {
    return hideCredentials(str(o));
  }

  static public Throwable innerException2(Throwable e) {
    if (e == null)
      return null;
    while (empty(e.getMessage()) && e.getCause() != null) e = e.getCause();
    return e;
  }

  static public String getSelectedItem(JList l) {
    return (String) l.getSelectedValue();
  }

  static public String getSelectedItem(JComboBox cb) {
    return strOrNull(cb.getSelectedItem());
  }

  static public JTextField standardTextFieldPopupMenu(final JTextField tf) {
    final WeakReference<JTextField> ref = weakRef(tf);
    componentPopupMenuItem(tf, "Copy text to clipboard", new Runnable() {

      public void run() {
        try {
          copyTextToClipboard(ref.get().getText());
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "copyTextToClipboard(ref.get().getText())";
      }
    });
    componentPopupMenuItem(tf, "Paste", new Runnable() {

      public void run() {
        try {
          ref.get().paste();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "ref.get().paste()";
      }
    });
    return tf;
  }

  static public <A extends JTextComponent> A jenableUndoRedo(A textcomp) {
    {
      swing(() -> {
        UndoManager undo = new UndoManager();
        vm_generalWeakSet("Undo Managers").add(undo);
        setMeta(textcomp, "UndoManager", undo);
        textcomp.getDocument().addUndoableEditListener(new UndoableEditListener() {

          public void undoableEditHappened(UndoableEditEvent evt) {
            undo.addEdit(evt.getEdit());
          }
        });
        textcomp.getActionMap().put("Undo", abstractAction("Undo", new Runnable() {

          public void run() {
            try {
              if (undo.canUndo())
                undo.undo();
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "if (undo.canUndo()) undo.undo()";
          }
        }));
        textcomp.getActionMap().put("Redo", abstractAction("Redo", new Runnable() {

          public void run() {
            try {
              if (undo.canRedo())
                undo.redo();
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "if (undo.canRedo()) undo.redo()";
          }
        }));
        textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Z"), "Undo");
        textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Y"), "Redo");
      });
    }
    return textcomp;
  }

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

  static public 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);
    if (o instanceof Boolean)
      return boolToInt((Boolean) o);
    throw fail("woot not int: " + getClassName(o));
  }

  static public int toInt(long l) {
    if (l != (int) l)
      throw fail("Too large for int: " + l);
    return (int) l;
  }

  static transient public Set<IVF1<Runnable>> onExecutingSwingCode;

  public static void onExecutingSwingCode(IVF1<Runnable> f) {
    onExecutingSwingCode = createOrAddToSyncLinkedHashSet(onExecutingSwingCode, f);
  }

  public static void removeExecutingSwingCodeListener(IVF1<Runnable> f) {
    main.remove(onExecutingSwingCode, f);
  }

  public static void executingSwingCode(Runnable code) {
    if (onExecutingSwingCode != null)
      for (var listener : onExecutingSwingCode) pcallF_typed(listener, code);
  }

  static public boolean endsWithLetterOrDigit(String s) {
    return s != null && s.length() > 0 && Character.isLetterOrDigit(s.charAt(s.length() - 1));
  }

  static volatile public boolean ping_pauseAll = false;

  static public int ping_sleep = 100;

  static volatile public boolean ping_anyActions = false;

  static public Map<Thread, Object> ping_actions = newWeakHashMap();

  static public ThreadLocal<Boolean> ping_isCleanUpThread = new ThreadLocal();

  static public boolean ping(PingSource pingSource) {
    return ping();
  }

  static public boolean ping() {
    newPing();
    if (ping_pauseAll || ping_anyActions)
      ping_impl(true);
    return true;
  }

  static public boolean ping_impl(boolean okInCleanUp) {
    try {
      if (ping_pauseAll && !isAWTThread()) {
        do Thread.sleep(ping_sleep); while (ping_pauseAll);
        return true;
      }
      if (ping_anyActions) {
        if (!okInCleanUp && !isTrue(ping_isCleanUpThread.get()))
          failIfUnlicensed();
        Object action = null;
        synchronized (ping_actions) {
          if (!ping_actions.isEmpty()) {
            action = ping_actions.get(currentThread());
            if (action instanceof Runnable)
              ping_actions.remove(currentThread());
            if (ping_actions.isEmpty())
              ping_anyActions = false;
          }
        }
        if (action instanceof Runnable)
          ((Runnable) action).run();
        else if (eq(action, "cancelled"))
          throw fail("Thread cancelled.");
      }
      return false;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  static public boolean eq(Symbol a, String b) {
    return eq(str(a), b);
  }

  static volatile public PersistableThrowable lastException_lastException;

  static public PersistableThrowable lastException() {
    return lastException_lastException;
  }

  static public void lastException(Throwable e) {
    lastException_lastException = persistableThrowable(e);
  }

  static public <A> int indexOf(List<A> l, A a, int startIndex) {
    if (l == null)
      return -1;
    int n = l(l);
    for (int i = startIndex; i < n; i++) if (eq(l.get(i), a))
      return i;
    return -1;
  }

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

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

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

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

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

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

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

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

  static public <A> int indexOf(A[] x, A a) {
    int n = l(x);
    for (int i = 0; i < n; i++) if (eq(x[i], a))
      return i;
    return -1;
  }

  static public <A> int indexOf(Iterable<A> l, A a) {
    if (l == null)
      return -1;
    int i = 0;
    for (A x : l) {
      if (eq(x, a))
        return i;
      i++;
    }
    return -1;
  }

  static public void rotateStringBuffer(StringBuffer buf, int max) {
    try {
      if (buf == null)
        return;
      synchronized (buf) {
        if (buf.length() <= max)
          return;
        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);
        }
        buf.trimToSize();
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public void rotateStringBuilder(StringBuilder buf, int max) {
    try {
      if (buf == null)
        return;
      synchronized (buf) {
        if (buf.length() <= max)
          return;
        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);
        }
        buf.trimToSize();
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public Object vmBus_wrapArgs(Object... args) {
    return empty(args) ? null : l(args) == 1 ? args[0] : args;
  }

  static public void pcallFAll_minimalExceptionHandling(Collection l, Object... args) {
    if (l != null)
      for (Object f : cloneList(l)) {
        ping();
        pcallF_minimalExceptionHandling(f, args);
      }
  }

  static public void pcallFAll_minimalExceptionHandling(Iterator it, Object... args) {
    while (it.hasNext()) {
      ping();
      pcallF_minimalExceptionHandling(it.next(), args);
    }
  }

  static public Set vm_busListeners_live_cache;

  static public Set vm_busListeners_live() {
    if (vm_busListeners_live_cache == null)
      vm_busListeners_live_cache = vm_busListeners_live_load();
    return vm_busListeners_live_cache;
  }

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

  static public Map<String, Set> vm_busListenersByMessage_live_cache;

  static public Map<String, Set> vm_busListenersByMessage_live() {
    if (vm_busListenersByMessage_live_cache == null)
      vm_busListenersByMessage_live_cache = vm_busListenersByMessage_live_load();
    return vm_busListenersByMessage_live_cache;
  }

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

  static public String copyTextToClipboard(Object _text) {
    String text = str(_text);
    StringSelection selection = new StringSelection(text);
    Toolkit.getDefaultToolkit().getSystemClipboard().setContents(selection, selection);
    vmBus_send("newClipboardContents", text);
    return text;
  }

  static public int randomID_defaultLength = 12;

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

  static public String randomID(Random r, int length) {
    return makeRandomID(r, length);
  }

  static public String randomID() {
    return randomID(randomID_defaultLength);
  }

  static public String randomID(Random r) {
    return randomID(r, randomID_defaultLength);
  }

  static public int globalIDLength() {
    return 16;
  }

  static public void setConsoleInputIfEmpty(final String text) {
    swing(() -> {
      if (empty(consoleInput()))
        consoleSetInput(text);
    });
  }

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

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

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

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

  static public String callStaticAnswerMethod(Object c, String s, List<String> history) {
    String answer = (String) callOpt(c, "answer", s, history);
    if (answer == null)
      answer = (String) callOpt(c, "answer", s);
    return emptyToNull(answer);
  }

  static public boolean headless() {
    return isHeadless();
  }

  static public JComponent showControls_controls;

  static public void showControls(final JComponent controls) {
    {
      swing(() -> {
        hideControls();
        JComponent _controls = withMargin(controls);
        showControls_controls = _controls;
        addToConsole2(showControls_controls);
      });
    }
  }

  static public JPanel jcenteredLine(Component... components) {
    return jcenteredline(components);
  }

  static public JPanel jcenteredLine(List<? extends Component> components) {
    return jcenteredline(components);
  }

  static public String carBot_addStandardFunction() {
    return addAlternateStdFunction("#1022367");
  }

  static public String carBot_addStandardFunction(String snippetID) {
    return addAlternateStdFunction("#1022367", snippetID, true);
  }

  static public String makeSFSynonym(String oldName, String newName) {
    if (eq(oldName, newName))
      throw fail("Can't make a synonym of itself");
    stdFunctions_clearCache();
    String snippetID = stdFunctions_cached().get(oldName);
    if (snippetID == null) {
      snippetID = stdFunctions_cached().get(newName);
      if (snippetID == null)
        throw fail("Standard function " + oldName + " not found");
      String temp = oldName;
      oldName = newName;
      newName = temp;
    }
    List<String> tok = javaTok(loadSnippet(snippetID));
    List<List<String>> funcs = findFullFunctionDefs(tok, true);
    List<String> out = new ArrayList();
    for (List<String> tokF : funcs) {
      int i = indexOfAny(tokF, 0, "(", "{");
      if (i < 0)
        continue;
      String fname = get(tokF, i - 2);
      if (!eq(fname, oldName))
        continue;
      List<String> args = tok_parseArgsDeclList(tokF);
      jreplace(tokF = cloneList(tokF), oldName, newName);
      List<String> start = cloneList(subList(tokF, 0, i));
      jreplace(start, "synchronized", "");
      boolean isVoid = containsOneOf(start, "void", "svoid");
      out.add(join(start) + "(" + joinWithComma(trimAll(map(__36 -> tok_dropFinal(__36), args))) + ") {\n" + "  " + (isVoid ? "" : "ret ") + oldName + "(" + joinWithComma(lmap(__37 -> tok_nameOfParam(__37), args)) + ");\n" + "}");
    }
    if (empty(out))
      throw fail("No functions found");
    print();
    String src = joinWithEmptyLines(out);
    printIndent(src);
    if (isStandardFunction(newName)) {
      String snippetID2 = sfSnippet(newName);
      String result = editSnippet(snippetID2, src);
      return print("Standard function " + newName + " exists, edited " + snippetID2 + ": " + result);
    }
    String newSnippetID = createSnippet(src, newName + " - synonym of " + oldName, snippetType_JavaXInclude());
    checkMarkAnimation_bottomLeft(addStdFunction(newSnippetID, true), 2);
    stdFunctions_clearCache();
    return "Synonym made!";
  }

  static public String addStdClassWithAnimation() {
    return showAnimationForAddStdFunction(addStdClass());
  }

  static public String addStdClassWithAnimation(String snippetID) {
    return showAnimationForAddStdFunction(addStdClass(snippetID, true));
  }

  static public String sf_addReversedArguments(String name) {
    String snippetID = stdFunctions_cached().get(name);
    if (snippetID == null)
      return "Function not found: " + name;
    String src = loadSnippet(snippetID);
    String reversed = tok_reverseFunctionArguments(javaDropAllComments(src));
    if (containsSubList(javaTokC(src), javaTokC(reversed)))
      return "Already made";
    return editSnippet(snippetID, joinWithEmptyLines(src, reversed));
  }

  static public String sf_makeArgumentsFinal(String name) {
    String snippetID = standardFunctionMap().get(name);
    if (snippetID == null)
      return "Function not found: " + name;
    String src = loadSnippet(snippetID);
    List<String> tok = javaTok(src);
    tok_makeArgumentsToAllFunctionsFinal(tok);
    return eq(join(tok), src) ? "No change" : editSnippet(snippetID, join(tok));
  }

  static public boolean isAWTThread() {
    if (isAndroid())
      return false;
    if (isHeadless())
      return false;
    return isAWTThread_awt();
  }

  static public boolean isAWTThread_awt() {
    return SwingUtilities.isEventDispatchThread();
  }

  static public Runnable addThreadInfoToRunnable(final Object r) {
    final Object info = _threadInfo();
    return info == null ? asRunnable(r) : new Runnable() {

      public void run() {
        try {
          _inheritThreadInfo(info);
          callF(r);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "_inheritThreadInfo(info); callF(r);";
      }
    };
  }

  static public ArrayList emptyList() {
    return new ArrayList();
  }

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

  static public ArrayList emptyList(Iterable l) {
    return l instanceof Collection ? emptyList(((Collection) l).size()) : emptyList();
  }

  static public ArrayList emptyList(Object[] l) {
    return emptyList(l(l));
  }

  static public <A> ArrayList<A> emptyList(Class<A> c) {
    return new ArrayList();
  }

  static public int[] emptyIntArray_a = new int[0];

  static public int[] emptyIntArray() {
    return emptyIntArray_a;
  }

  static public char[] emptyCharArray = new char[0];

  static public char[] emptyCharArray() {
    return emptyCharArray;
  }

  static public double[] emptyDoubleArray = new double[0];

  static public double[] emptyDoubleArray() {
    return emptyDoubleArray;
  }

  static public float[] emptyFloatArray = new float[0];

  static public float[] emptyFloatArray() {
    return emptyFloatArray;
  }

  static public Map emptyMap() {
    return new HashMap();
  }

  static public Object[] emptyObjectArray_a = new Object[0];

  static public Object[] emptyObjectArray() {
    return emptyObjectArray_a;
  }

  static public Symbol emptySymbol_value;

  static public Symbol emptySymbol() {
    if (emptySymbol_value == null)
      emptySymbol_value = symbol("");
    return emptySymbol_value;
  }

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

  static public String str(char[] c) {
    return c == null ? "null" : new String(c);
  }

  static public String str(char[] c, int offset, int count) {
    return new String(c, offset, count);
  }

  static public void _onJavaXSet() {
  }

  static public <A, B> Map<A, B> weakHashMap() {
    return newWeakHashMap();
  }

  static public <A, B> List<A> keysList(Map<A, B> map) {
    return cloneListSynchronizingOn(keys(map), map);
  }

  static public <A> List<A> keysList(MultiSet<A> ms) {
    return ms == null ? null : keysList(ms.map);
  }

  static public <A> void listThreadLocalAdd(ThreadLocal<List<A>> tl, A a) {
    List<A> l = tl.get();
    if (l == null)
      tl.set(l = new ArrayList());
    l.add(a);
  }

  static public <A> A listThreadLocalPopLast(ThreadLocal<List<A>> tl) {
    List<A> l = tl.get();
    if (l == null)
      return null;
    A a = popLast(l);
    if (empty(l))
      tl.set(null);
    return a;
  }

  static public JPanel marginPanel() {
    return jtransparent(borderLayoutPanel());
  }

  static public <A> ArrayList<A> cloneList(Iterable<A> l) {
    return l instanceof Collection ? cloneList((Collection) l) : asList(l);
  }

  static public <A> ArrayList<A> cloneList(Collection<A> l) {
    if (l == null)
      return new ArrayList();
    synchronized (collectionMutex(l)) {
      return new ArrayList<A>(l);
    }
  }

  static public <A> AutoCloseable tempSetThreadLocal(final ThreadLocal<A> tl, A a) {
    if (tl == null)
      return null;
    final A prev = setThreadLocal(tl, a);
    return new AutoCloseable() {

      public String toString() {
        return "tl.set(prev);";
      }

      public void close() throws Exception {
        tl.set(prev);
      }
    };
  }

  static public String replacePrefix(String prefix, String replacement, String s) {
    if (!startsWith(s, prefix))
      return s;
    return replacement + substring(s, l(prefix));
  }

  static public Object get2(Object o, String field1, String field2) {
    return get(get(o, field1), field2);
  }

  static public boolean startsWithAny(String a, Collection<String> b) {
    for (String prefix : unnullForIteration(b)) if (startsWith(a, prefix))
      return true;
    return false;
  }

  static public boolean startsWithAny(String a, String... b) {
    if (b != null)
      for (String prefix : unnullForIteration(b)) if (startsWith(a, prefix))
        return true;
    return false;
  }

  static public boolean startsWithAny(String a, Collection<String> b, Matches m) {
    for (String prefix : unnullForIteration(b)) if (startsWith(a, prefix, m))
      return true;
    return false;
  }

  static public String mcDollar() {
    return mcName() + "$";
  }

  static public <A> List<A> ll(A... a) {
    ArrayList l = new ArrayList(a.length);
    if (a != null)
      for (A x : a) l.add(x);
    return l;
  }

  static public String afterDollar(String s) {
    return substring(s, smartIndexOf(s, '$') + 1);
  }

  static volatile public String caseID_caseID;

  static public String caseID() {
    return caseID_caseID;
  }

  static public void caseID(String id) {
    caseID_caseID = id;
  }

  static public String programID() {
    return getProgramID();
  }

  static public String programID(Object o) {
    return getProgramID(o);
  }

  static public String quoteUnlessIdentifierOrInteger(String s) {
    return quoteIfNotIdentifierOrInteger(s);
  }

  static public Object dm_resolveModule(Object moduleOrStem) {
    return dm_callOS("resolveModule", moduleOrStem);
  }

  static final public Map<Class, _MethodCache> callOpt_cache = newDangerousWeakHashMap();

  static public Object callOpt_cached(Object o, String methodName, Object... args) {
    try {
      if (o == null)
        return null;
      if (o instanceof Class) {
        Class c = (Class) o;
        _MethodCache cache = callOpt_getCache(c);
        Method me = cache.findMethod(methodName, args);
        if (me == null || (me.getModifiers() & Modifier.STATIC) == 0)
          return null;
        return invokeMethod(me, null, args);
      } else {
        Class c = o.getClass();
        _MethodCache cache = callOpt_getCache(c);
        Method me = cache.findMethod(methodName, args);
        if (me == null)
          return null;
        return invokeMethod(me, o, args);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public _MethodCache callOpt_getCache(Class c) {
    _MethodCache cache = callOpt_cache.get(c);
    if (cache == null)
      callOpt_cache.put(c, cache = new _MethodCache(c));
    return cache;
  }

  static public Object invokeMethod(Method m, Object o, Object... args) {
    try {
      try {
        return m.invoke(o, args);
      } catch (InvocationTargetException e) {
        throw rethrow(getExceptionCause(e));
      } catch (IllegalArgumentException e) {
        throw new IllegalArgumentException(e.getMessage() + " - was calling: " + m + ", args: " + joinWithSpace(classNames(args)));
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public boolean isStaticMethod(Method m) {
    return methodIsStatic(m);
  }

  static public Object[] massageArgsForVarArgsCall(Executable m, Object[] args) {
    Class<?>[] types = m.getParameterTypes();
    int n = types.length - 1, nArgs = l(args);
    if (nArgs < n)
      return null;
    for (int i = 0; i < n; i++) if (!argumentCompatibleWithType(args[i], types[i]))
      return null;
    Class varArgType = types[n].getComponentType();
    for (int i = n; i < nArgs; i++) if (!argumentCompatibleWithType(args[i], varArgType))
      return null;
    Object[] newArgs = new Object[n + 1];
    arraycopy(args, 0, newArgs, 0, n);
    int nVarArgs = nArgs - n;
    Object varArgs = Array.newInstance(varArgType, nVarArgs);
    for (int i = 0; i < nVarArgs; i++) Array.set(varArgs, i, args[n + i]);
    newArgs[n] = varArgs;
    return newArgs;
  }

  static public <A> String joinWithComma(Iterable<A> c) {
    return join(", ", c);
  }

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

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

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

  static public List<String> classNames(Collection l) {
    return getClassNames(l);
  }

  static public List<String> classNames(Object[] l) {
    return getClassNames(asList(l));
  }

  static public List<String> splitAtSlash(String s) {
    return trimAll(asList(s.split("/")));
  }

  static public List filterByProgramIDAndShortClassName(Iterable l, String progID, String className) {
    List out = new ArrayList();
    for (Object o : unnull(l)) if (shortClassNameIs(o, className) && sameSnippetID(getProgramID(o), progID))
      out.add(o);
    return out;
  }

  static public List dm_listModules() {
    return (List) dm_callOS("listModules");
  }

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

  static public <A> A second(Iterable<A> l) {
    if (l == null)
      return null;
    Iterator<A> it = iterator(l);
    if (!it.hasNext())
      return null;
    it.next();
    return it.hasNext() ? it.next() : null;
  }

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

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

  static public char second(String s) {
    return charAt(s, 1);
  }

  static public List filterByShortClassName(Iterable l, String name) {
    List out = new ArrayList();
    for (Object o : unnull(l)) if (shortClassNameIs(o, name))
      out.add(o);
    return out;
  }

  static public void lock(Lock lock) {
    try {
      ping();
      if (lock == null)
        return;
      try {
        vmBus_send("locking", lock, "thread", currentThread());
        lock.lockInterruptibly();
        vmBus_send("locked", lock, "thread", currentThread());
      } catch (InterruptedException e) {
        Object reason = vm_threadInterruptionReasonsMap().get(currentThread());
        print("Locking interrupted! Reason: " + strOr(reason, "Unknown"));
        printStackTrace(e);
        rethrow(e);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public void lock(Lock lock, String msg) {
    print("Locking: " + msg);
    lock(lock);
  }

  static public void lock(Lock lock, String msg, long timeout) {
    print("Locking: " + msg);
    lockOrFail(lock, timeout);
  }

  static public ReentrantLock lock() {
    return fairLock();
  }

  static public File loadBinarySnippet(String snippetID) {
    IResourceLoader rl = vm_getResourceLoader();
    if (rl != null)
      return rl.loadLibrary(snippetID);
    return loadBinarySnippet_noResourceLoader(snippetID);
  }

  static public File loadBinarySnippet_noResourceLoader(String snippetID) {
    try {
      long id = parseSnippetID(snippetID);
      if (isImageServerSnippet(id))
        return loadImageAsFile(snippetID);
      File f = DiskSnippetCache_getLibrary(id);
      if (fileSize(f) == 0)
        f = loadDataSnippetToFile_noResourceLoader(snippetID);
      return f;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public boolean loadBufferedImageFixingGIFs_debug = false;

  static public ThreadLocal<Var<byte[]>> loadBufferedImageFixingGIFs_output = new ThreadLocal();

  static public Image loadBufferedImageFixingGIFs(File file) {
    try {
      if (!file.exists())
        return null;
      if (!isGIF(file))
        return ImageIO.read(file);
      if (loadBufferedImageFixingGIFs_debug)
        print("loadBufferedImageFixingGIFs" + ": checking gif");
      ImageReader reader = ImageIO.getImageReadersByFormatName("gif").next();
      reader.setInput(ImageIO.createImageInputStream(file));
      int numImages = reader.getNumImages(true);
      IIOMetadata imageMetaData = reader.getImageMetadata(0);
      String metaFormatName = imageMetaData.getNativeMetadataFormatName();
      boolean foundBug = false;
      for (int i = 0; i < numImages && !foundBug; i++) {
        IIOMetadataNode root = (IIOMetadataNode) reader.getImageMetadata(i).getAsTree(metaFormatName);
        int nNodes = root.getLength();
        for (int j = 0; j < nNodes; j++) {
          org.w3c.dom.Node node = root.item(j);
          if (node.getNodeName().equalsIgnoreCase("GraphicControlExtension")) {
            String delay = ((IIOMetadataNode) node).getAttribute("delayTime");
            if (Integer.parseInt(delay) == 0) {
              foundBug = true;
            }
            break;
          }
        }
      }
      if (loadBufferedImageFixingGIFs_debug)
        print("loadBufferedImageFixingGIFs" + ": " + f2s(file) + " foundBug=" + foundBug);
      Image image;
      if (!foundBug) {
        image = Toolkit.getDefaultToolkit().createImage(f2s(file));
      } else {
        ByteArrayOutputStream baoStream = new ByteArrayOutputStream();
        {
          ImageOutputStream ios = ImageIO.createImageOutputStream(baoStream);
          try {
            ImageWriter writer = ImageIO.getImageWriter(reader);
            writer.setOutput(ios);
            writer.prepareWriteSequence(null);
            for (int i = 0; i < numImages; i++) {
              BufferedImage frameIn = reader.read(i);
              IIOMetadataNode root = (IIOMetadataNode) reader.getImageMetadata(i).getAsTree(metaFormatName);
              int nNodes = root.getLength();
              for (int j = 0; j < nNodes; j++) {
                org.w3c.dom.Node node = root.item(j);
                if (node.getNodeName().equalsIgnoreCase("GraphicControlExtension")) {
                  String delay = ((IIOMetadataNode) node).getAttribute("delayTime");
                  if (Integer.parseInt(delay) == 0) {
                    ((IIOMetadataNode) node).setAttribute("delayTime", "10");
                  }
                  break;
                }
              }
              IIOMetadata metadata = writer.getDefaultImageMetadata(new ImageTypeSpecifier(frameIn), null);
              metadata.setFromTree(metadata.getNativeMetadataFormatName(), root);
              IIOImage frameOut = new IIOImage(frameIn, null, metadata);
              writer.writeToSequence(frameOut, writer.getDefaultWriteParam());
            }
            writer.endWriteSequence();
          } finally {
            _close(ios);
          }
        }
        byte[] data = baoStream.toByteArray();
        setVar(loadBufferedImageFixingGIFs_output.get(), data);
        if (loadBufferedImageFixingGIFs_debug)
          print("Data size: " + l(data));
        image = Toolkit.getDefaultToolkit().createImage(data);
      }
      return image;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public void unlock(Lock lock, String msg) {
    if (lock == null)
      return;
    lock.unlock();
    vmBus_send("unlocked", lock, "thread", currentThread());
    print("Unlocked: " + msg);
  }

  static public void unlock(Lock lock) {
    if (lock == null)
      return;
    lock.unlock();
    vmBus_send("unlocked", lock, "thread", currentThread());
  }

  static public Object pcallFunction(Object f, Object... args) {
    try {
      return callFunction(f, args);
    } catch (Throwable __e) {
      pcallFail(__e);
    }
    return null;
  }

  static public void pcallFail(Throwable e) {
    pcallPolicyForThread().handlePcallFail(e);
  }

  static public void pcallFail(String msg) {
    pcallFail(new Throwable(msg));
  }

  static public Object rcall(String method, Object o, Object... args) {
    return call_withVarargs(o, method, args);
  }

  static public Runnable _topLevelErrorHandling(Runnable r) {
    if (r == null)
      return null;
    Object info = _threadInfo();
    Object mod = dm_current_generic();
    Runnable r2 = r;
    if (info != null || mod == null)
      r2 = new Runnable() {

        public void run() {
          try {
            AutoCloseable __1 = (AutoCloseable) (rcall("enter", mod));
            try {
              _threadInheritInfo(info);
              r.run();
            } finally {
              _close(__1);
            }
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "temp (AutoCloseable) rcall enter(mod);\r\n      _threadInheritInfo(info);\r\n    ...";
        }
      };
    r2 = rPcall(r2);
    return r2;
  }

  static public <A> WeakReference<A> weakRef(A a) {
    return newWeakReference(a);
  }

  static public boolean cic(Collection<String> l, String s) {
    return containsIgnoreCase(l, s);
  }

  static public boolean cic(Collection<Symbol> l, Symbol s) {
    return contains(l, s);
  }

  static public boolean cic(String[] l, String s) {
    return containsIgnoreCase(l, s);
  }

  static public boolean cic(String s, char c) {
    return containsIgnoreCase(s, c);
  }

  static public boolean cic(String a, String b) {
    return containsIgnoreCase(a, b);
  }

  static public List<String> javaTokC(String s) {
    if (s == null)
      return null;
    int l = s.length();
    ArrayList<String> tok = new ArrayList();
    int i = 0;
    while (i < l) {
      int j = i;
      char c, d;
      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);
      if (c == '\'' || c == '"') {
        char opener = c;
        ++j;
        while (j < l) {
          if (s.charAt(j) == opener || s.charAt(j) == '\n') {
            ++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));
      else if (Character.isDigit(c)) {
        do ++j; while (j < l && Character.isDigit(s.charAt(j)));
        if (j < l && s.charAt(j) == 'L')
          ++j;
      } else if (c == '[' && d == '[') {
        do ++j; while (j + 1 < l && !s.substring(j, j + 2).equals("]]"));
        j = Math.min(j + 2, l);
      } else if (c == '[' && d == '=' && i + 2 < l && s.charAt(i + 2) == '[') {
        do ++j; while (j + 2 < l && !s.substring(j, j + 3).equals("]=]"));
        j = Math.min(j + 3, l);
      } else
        ++j;
      tok.add(javaTok_substringC(s, i, j));
      i = j;
    }
    return tok;
  }

  static public JWindow showAnimationInBottomLeftCorner(final String imageID, final String text, double seconds) {
    JWindow w = showAnim(imageID, text, seconds);
    moveToBottomLeftCorner(w);
    return w;
  }

  static public boolean infoMessage_alwaysOnTop = true;

  static public double infoMessage_defaultTime = 5.0;

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

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

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

  static public JWindow infoMessage_noprint(final String _text, final double seconds) {
    final String text = hideCredentials(_text);
    if (empty(text))
      return null;
    logQuotedWithDate(infoBoxesLogFile(), text);
    if (isHeadless())
      return null;
    return (JWindow) swingAndWait(new F0<Object>() {

      public Object get() {
        try {
          JWindow window = makeWindow(infoMessage_makePanel(text));
          window.setSize(300, 150);
          moveToTopRightCorner(window);
          if (infoMessage_alwaysOnTop)
            window.setAlwaysOnTop(true);
          if (vmBus_noObjections("shouldShowInfoBox", window, text))
            window.setVisible(true);
          if (seconds != 0)
            disposeWindowAfter(iround(seconds * 1000), window);
          return window;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "JWindow window = makeWindow(infoMessage_makePanel(text));\r\n    window.setSize...";
      }
    });
  }

  static public JWindow infoMessage(Throwable e) {
    printStackTrace(e);
    return infoMessage(exceptionToStringShort(e));
  }

  static public <A> AutoCloseable tempDisposeWindow(final Window w) {
    return new AutoCloseable() {

      public void close() {
        disposeWindow(w);
      }
    };
  }

  static public boolean showAnimationInTopRightCorner_alwaysOnTop = true;

  static public boolean showAnimationInTopRightCorner_on = true;

  static public JWindow showAnimationInTopRightCorner(String imageID, String text) {
    if (isHeadless() || !showAnimationInTopRightCorner_on)
      return null;
    return showAnimationInTopRightCorner(imageIcon(imageID), text);
  }

  static public JWindow showAnimationInTopRightCorner(final Image image, final String text) {
    if (image == null || isHeadless() || !showAnimationInTopRightCorner_on)
      return null;
    return showAnimationInTopRightCorner(imageIcon(image), text);
  }

  static public JWindow showAnimationInTopRightCorner(final ImageIcon imageIcon, final String text) {
    if (isHeadless() || !showAnimationInTopRightCorner_on)
      return null;
    return (JWindow) swingAndWait(new F0<Object>() {

      public 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 rethrow(__e);
              }
            }

            public String toString() {
              return "window.dispose()";
            }
          });
          if (showAnimationInTopRightCorner_alwaysOnTop)
            window.setAlwaysOnTop(true);
          return window;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "JLabel label = new JLabel(imageIcon);\r\n    if (nempty(text)) {\r\n      label.s...";
      }
    });
  }

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

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

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

  static public JWindow showAnimationInTopRightCorner(BufferedImage img, String text, double seconds) {
    return disposeWindowAfter(iround(seconds * 1000), showAnimationInTopRightCorner(img, text));
  }

  static public List<Snippet> snippetsFromHTML(String url) {
    String html = loadPage(url);
    return snippetsFromLoadedHTML(html);
  }

  static public boolean endsWithLetter(String s) {
    return nempty(s) && isLetter(last(s));
  }

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

  static public String structureForUser(Object o, structure_Data d) {
    d.noStringSharing = true;
    d.warnIfUnpersistable(false);
    return beautifyStructure(structure(o, d));
  }

  static public String getType(Object o) {
    return getClassName(o);
  }

  static public long getFileSize(String path) {
    return path == null ? 0 : new File(path).length();
  }

  static public long getFileSize(File f) {
    return f == null ? 0 : f.length();
  }

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

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

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

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

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

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

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

  static public HashSet<String> findCodeTokens_specials = lithashset("*", "<quoted>", "<id>", "<int>", "\\*");

  static public int findCodeTokens_bails, findCodeTokens_nonbails;

  static public interface findCodeTokens_Matcher {

    public boolean get(String token);
  }

  static public int findCodeTokens(List<String> tok, int startIdx, boolean ignoreCase, String[] tokens, Object condition) {
    int end = tok.size() - tokens.length * 2 + 2, nTokens = tokens.length;
    int i = startIdx | 1;
    if (i >= end)
      return -1;
    String firstToken = tokens[0];
    if (!ignoreCase && !findCodeTokens_specials.contains(firstToken)) {
      while (i < end && !firstToken.equals(tok.get(i))) i += 2;
    }
    findCodeTokens_Matcher[] matchers = new findCodeTokens_Matcher[nTokens];
    for (int j = 0; j < nTokens; j++) {
      String p = tokens[j];
      findCodeTokens_Matcher matcher;
      if (p.equals("*"))
        matcher = t -> true;
      else if (p.equals("<quoted>"))
        matcher = t -> isQuoted(t);
      else if (p.equals("<id>"))
        matcher = t -> isIdentifier(t);
      else if (p.equals("<int>"))
        matcher = t -> isInteger(t);
      else if (p.equals("\\*"))
        matcher = t -> t.equals("*");
      else if (ignoreCase)
        matcher = t -> eqic(p, t);
      else
        matcher = t -> t.equals(p);
      matchers[j] = matcher;
    }
    outer: for (; i < end; i += 2) {
      for (int j = 0; j < nTokens; j++) if (!matchers[j].get(tok.get(i + j * 2)))
        continue outer;
      if (condition == null || checkTokCondition(condition, tok, i - 1))
        return i;
    }
    return -1;
  }

  static public String unquote(String s) {
    if (s == null)
      return null;
    if (startsWith(s, '[')) {
      int i = 1;
      while (i < s.length() && s.charAt(i) == '=') ++i;
      if (i < s.length() && s.charAt(i) == '[') {
        String m = s.substring(1, i);
        if (s.endsWith("]" + m + "]"))
          return s.substring(i + 1, s.length() - i - 1);
      }
    }
    return unquoteSingleOrDoubleQuotes(s);
  }

  public static <A> String join(String glue, Iterable<A> strings) {
    if (strings == null)
      return "";
    if (strings instanceof Collection) {
      if (((Collection) strings).size() == 1)
        return strOrEmpty(first((Collection) strings));
    }
    StringBuilder buf = new StringBuilder();
    Iterator<A> i = strings.iterator();
    if (i.hasNext()) {
      buf.append(strOrEmpty(i.next()));
      while (i.hasNext()) buf.append(glue).append(strOrEmpty(i.next()));
    }
    return buf.toString();
  }

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

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

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

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

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

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

  static public String fromLines(Iterable lines) {
    StringBuilder buf = new StringBuilder();
    if (lines != null)
      for (Object line : lines) buf.append(str(line)).append('\n');
    return buf.toString();
  }

  static public String fromLines(String... lines) {
    return fromLines(asList(lines));
  }

  static public IterableIterator<String> toLines(File f) {
    return linesFromFile(f);
  }

  static public List<String> toLines(String s) {
    List<String> lines = new ArrayList<String>();
    if (s == null)
      return lines;
    int start = 0;
    while (true) {
      int i = toLines_nextLineBreak(s, start);
      if (i < 0) {
        if (s.length() > start)
          lines.add(s.substring(start));
        break;
      }
      lines.add(s.substring(start, i));
      if (s.charAt(i) == '\r' && i + 1 < s.length() && s.charAt(i + 1) == '\n')
        i += 2;
      else
        ++i;
      start = i;
    }
    return lines;
  }

  static public int toLines_nextLineBreak(String s, int start) {
    int n = s.length();
    for (int i = start; i < n; i++) {
      char c = s.charAt(i);
      if (c == '\r' || c == '\n')
        return i;
    }
    return -1;
  }

  static public void saveLocalSnippet(String snippetID, String text) {
    saveLocalSnippet(psI(snippetID), text);
  }

  static public void saveLocalSnippet(long snippetID, String text) {
    saveTextFile(localSnippetFile(snippetID), text);
  }

  static public String standardCredentialsUser() {
    return trim(loadTextFile(oneOfTheFiles(javaxSecretDir("tinybrain-username"), userDir(".tinybrain/username"))));
  }

  static public String standardCredentialsPass() {
    return trim(loadTextFile(oneOfTheFiles(javaxSecretDir("tinybrain-userpass"), userDir(".tinybrain/userpass"))));
  }

  static public HashMap litmap(Object... x) {
    HashMap map = new HashMap();
    litmap_impl(map, x);
    return map;
  }

  static public void litmap_impl(Map map, Object... x) {
    if (x != null)
      for (int i = 0; i < x.length - 1; i += 2) if (x[i + 1] != null)
        map.put(x[i], x[i + 1]);
  }

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

  static public ThreadLocal<Boolean> doPost_silently = new ThreadLocal();

  static public ThreadLocal<Long> doPost_timeout = new ThreadLocal();

  static public ThreadLocal<Map<String, String>> doPost_extraHeaders = new ThreadLocal();

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

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

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

  static public String doPost(String urlParameters, URLConnection conn, URL url) {
    try {
      boolean silently = isTrue(optParam(doPost_silently));
      Long timeout = optParam(doPost_timeout);
      Map<String, String> extraHeaders = optPar(doPost_extraHeaders);
      setHeaders(conn);
      for (String key : keys(extraHeaders)) {
        conn.setRequestProperty(key, extraHeaders.get(key));
      }
      int l = lUtf8(urlParameters);
      if (!silently)
        print("Sending POST request: " + hideCredentials(url) + " (" + l + " bytes)");
      if (timeout != null)
        setURLConnectionTimeouts(conn, timeout);
      ((HttpURLConnection) conn).setRequestMethod("POST");
      conn.setDoOutput(true);
      conn.setRequestProperty("Content-Length", str(l));
      OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
      writer.write(urlParameters);
      writer.flush();
      String contents = loadPage_utf8(conn, url, false);
      writer.close();
      return contents;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public String quote(Object o) {
    if (o == null)
      return "null";
    return quote(str(o));
  }

  static public String quote(String s) {
    if (s == null)
      return "null";
    StringBuilder out = new StringBuilder((int) (l(s) * 1.5 + 2));
    quote_impl(s, out);
    return out.toString();
  }

  static public void quote_impl(String s, StringBuilder out) {
    out.append('"');
    int l = s.length();
    for (int i = 0; i < l; i++) {
      char c = s.charAt(i);
      if (c == '\\' || c == '"')
        out.append('\\').append(c);
      else if (c == '\r')
        out.append("\\r");
      else if (c == '\n')
        out.append("\\n");
      else if (c == '\t')
        out.append("\\t");
      else if (c == '\0')
        out.append("\\0");
      else
        out.append(c);
    }
    out.append('"');
  }

  static public Map<String, String> singular_specials = litmap("children", "child", "images", "image", "chess", "chess");

  static public Set<String> singular_specials2 = litciset("time", "machine", "line", "rule");

  static public String singular(String s) {
    if (s == null)
      return null;
    {
      String __1 = singular_specials.get(s);
      if (!empty(__1))
        return __1;
    }
    if (singular_specials2.contains(dropSuffix("s", afterLastSpace(s))))
      return dropSuffix("s", s);
    if (s.endsWith("ness"))
      return s;
    if (s.endsWith("ges"))
      return dropSuffix("s", s);
    if (endsWith(s, "bases"))
      return dropLast(s);
    s = dropSuffix("es", s);
    s = dropSuffix("s", s);
    return s;
  }

  static public Set<String> getPlural_specials = litciset("sheep", "fish");

  static public String getPlural(String s) {
    if (contains(getPlural_specials, s))
      return s;
    if (ewic(s, "y"))
      return dropSuffixIgnoreCase("y", s) + "ies";
    if (ewicOneOf(s, "ss", "ch"))
      return s + "es";
    if (ewic(s, "s"))
      return s;
    return s + "s";
  }

  static public Object[] asArray(List l) {
    return toObjectArray(l);
  }

  static public <A> A[] asArray(Class<A> type, List l) {
    return (A[]) l.toArray((Object[]) Array.newInstance(type, l.size()));
  }

  static public boolean isMenuSeparatorIndicator(Object o) {
    return eqOneOf(o, "***", "---", "===", "");
  }

  static public int menuItemCount(JMenu menu) {
    return menu == null ? 0 : swing(() -> menu.getItemCount());
  }

  static public boolean isRunnableX(Object o) {
    if (o == null)
      return false;
    if (o instanceof String)
      return hasMethod(mc(), (String) o);
    return o instanceof Runnable || hasMethod(o, "get");
  }

  static public boolean jmenuItem_newThreads = false;

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

  static public JMenuItem jmenuItem(final String text, final Object r) {
    return swing(new F0<JMenuItem>() {

      public JMenuItem get() {
        try {
          Pair<String, Integer> p = jmenu_autoMnemonic(dropPrefix("[disabled] ", text));
          JMenuItem mi = new JMenuItem(p.a);
          if (startsWith(text, "[disabled] "))
            disableMenuItem(mi);
          if (p.b != 0)
            mi.setMnemonic(p.b);
          mi.addActionListener(jmenuItem_newThreads ? actionListenerInNewThread(r) : actionListener(r));
          return mi;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "Pair<S, Int> p = jmenu_autoMnemonic(dropPrefix(\"[disabled] \", text));\r\n    JM...";
      }
    });
  }

  static public String or2(String a, String b) {
    return nempty(a) ? a : b;
  }

  static public String or2(String a, String b, String c) {
    return or2(or2(a, b), c);
  }

  static public String unCurlyBracket(String s) {
    return tok_unCurlyBracket(s);
  }

  static public <A extends JComponent> A bindLiveValueListenerToComponent(A component, IHasChangeListeners lv, Runnable listener) {
    return bindHasChangeListenersToComponent(component, lv, listener);
  }

  static public boolean isCurlyBracketed(String s) {
    return isCurlyBraced(s);
  }

  static public <A extends JComponent> A setEnabled(A c, boolean enable) {
    if (c != null) {
      swing(() -> {
        c.setEnabled(enable);
      });
    }
    return c;
  }

  static public <A extends JComponent> A setEnabled(boolean enable, A c) {
    return setEnabled(c, enable);
  }

  static public void setEnabled(boolean enable, JComponent... l) {
    for (var c : unnullForIteration(l)) setEnabled(c, enable);
  }

  static public boolean setText_opt = true;

  static public <A extends JTextComponent> A setText(A c, Object text) {
    setText((JComponent) c, text);
    return c;
  }

  static public <A extends JComboBox> A setText(final A c, Object text) {
    final String s = strUnnull(text);
    {
      swing(() -> {
        c.getEditor().setItem(s);
      });
    }
    return c;
  }

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

  static public JButton setText(JButton c, Object text) {
    setText((JComponent) c, jlabel_textAsHTML_center_ifNeeded(strUnnull(text)));
    return c;
  }

  static public <A extends JComponent> A setText(final A c, Object text) {
    if (c == null)
      return null;
    final String s = strUnnull(text);
    {
      swing(() -> {
        if (!setText_opt || neq(callOpt(c, "getText"), s))
          call(c, "setText", s);
      });
    }
    return c;
  }

  static public <A extends Component> A revalidate(final A c) {
    if (c == null || !c.isShowing())
      return c;
    {
      swing(() -> {
        c.revalidate();
        c.repaint();
      });
    }
    return c;
  }

  static public void revalidate(JFrame f) {
    revalidate((Component) f);
  }

  static public void revalidate(JInternalFrame f) {
    revalidate((Component) f);
  }

  static public boolean isJavaIdentifier(String s) {
    if (empty(s) || !Character.isJavaIdentifierStart(s.charAt(0)))
      return false;
    for (int i = 1; i < s.length(); i++) if (!Character.isJavaIdentifierPart(s.charAt(i)))
      return false;
    return true;
  }

  static public Object vmBus_query(String msg, Object... args) {
    Object arg = vmBus_wrapArgs(args);
    {
      var __1 = pcallFAll_returnFirstNotNull(vm_busListeners_live(), msg, arg);
      if (__1 != null)
        return __1;
    }
    return pcallFAll_returnFirstNotNull(vm_busListenersByMessage_live().get(msg), msg, arg);
  }

  static public Object vmBus_query(String msg) {
    return vmBus_query(msg, (Object) null);
  }

  static public String assertIdentifier(String s) {
    return assertIsIdentifier(s);
  }

  static public String assertIdentifier(String msg, String s) {
    return assertIsIdentifier(msg, s);
  }

  static public Object vm_generalMap_get(Object key) {
    return vm_generalMap().get(key);
  }

  static public WeakReference<Object> creator_class;

  static public Object creator() {
    return creator_class == null ? null : creator_class.get();
  }

  static public Object dm_callOSOpt(String functionName, Object... args) {
    return callOpt(dm_os(), functionName, args);
  }

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

  static public boolean hasMethodNamed(Class c, String method) {
    if (c == null)
      return false;
    return getMethodCache(c).cache.containsKey(method);
  }

  static public Object dm_osCall(String functionName, Object... args) {
    return dm_callOS(functionName, args);
  }

  static public DynModule dm_currentModuleMandatory() {
    return dm_current_mandatory();
  }

  static public <A> Set<A> syncIdentityHashSet() {
    return (Set) synchronizedSet(identityHashSet());
  }

  static public <A> AutoCloseable tempAdd(Collection<A> l, A a) {
    if (l == null || l.contains(a))
      return null;
    l.add(a);
    return new tempAdd_undo(l, a);
  }

  static public class tempAdd_undo<A> implements AutoCloseable, IFieldsToList {

    public Collection<A> l;

    public A a;

    public tempAdd_undo() {
    }

    public tempAdd_undo(Collection<A> l, A a) {
      this.a = a;
      this.l = l;
    }

    public String toString() {
      return shortClassName_dropNumberPrefix(this) + "(" + l + ", " + a + ")";
    }

    public Object[] _fieldsToList() {
      return new Object[] { l, a };
    }

    public void close() {
      try {
        l.remove(a);
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }
  }

  static public AutoCloseable tempAdd(Container a, Component b) {
    if (a == null || b == null)
      return null;
    {
      return swing(() -> {
        if (b.getParent() == a)
          return null;
        a.add(b);
        return () -> {
          swing(() -> {
            if (b.getParent() == a)
              removeFromParent(b);
          });
        };
      });
    }
  }

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

  static public <A> A third(Iterable<A> l) {
    if (l == null)
      return null;
    Iterator<A> it = iterator(l);
    for (int _repeat_0 = 0; _repeat_0 < 2; _repeat_0++) {
      if (!it.hasNext())
        return null;
      it.next();
    }
    return it.hasNext() ? it.next() : null;
  }

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

  static public <A> A last(List<A> l) {
    return empty(l) ? null : l.get(l.size() - 1);
  }

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

  static public byte last(byte[] a) {
    return l(a) != 0 ? a[l(a) - 1] : 0;
  }

  static public int last(int[] a) {
    return l(a) != 0 ? a[l(a) - 1] : 0;
  }

  static public long last(long[] a) {
    return l(a) != 0 ? a[l(a) - 1] : 0;
  }

  static public double last(double[] a) {
    return l(a) != 0 ? a[l(a) - 1] : 0;
  }

  static public <A> A last(A[] a) {
    return l(a) != 0 ? a[l(a) - 1] : null;
  }

  static public <A> A last(Iterator<A> it) {
    A a = null;
    while (it.hasNext()) {
      ping();
      a = it.next();
    }
    return a;
  }

  static public <A> A last(Collection<A> l) {
    if (l == null)
      return null;
    if (l instanceof List)
      return (A) last((List) l);
    if (l instanceof SortedSet)
      return (A) last((SortedSet) l);
    Iterator<A> it = iterator(l);
    A a = null;
    while (it.hasNext()) {
      ping();
      a = it.next();
    }
    return a;
  }

  static public <A> A last(SortedSet<A> l) {
    return l == null ? null : l.last();
  }

  static public <A> A last(ReverseChain<A> l) {
    return l == null ? null : l.element;
  }

  static public <A> A last(CompactLinkedHashSet<A> set) {
    return set == null ? null : set.last();
  }

  static public <A> VF1<A> runnableToVF1(final Runnable r) {
    return r == null ? null : new VF1<A>() {

      public void get(A a) {
        try {
          r.run();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "r.run()";
      }
    };
  }

  static public RuntimeException asRuntimeException(Throwable t) {
    if (t instanceof Error)
      _handleError((Error) t);
    return t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
  }

  static public boolean regionMatchesIC(String a, int offsetA, String b, int offsetB, int len) {
    return a != null && a.regionMatches(true, offsetA, b, offsetB, len);
  }

  static public int strL(String s) {
    return s == null ? 0 : s.length();
  }

  static public int lCharSequence(CharSequence s) {
    return s == null ? 0 : s.length();
  }

  static public int jfind(String s, String in) {
    return jfind(javaTok(s), in);
  }

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

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

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

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

  static public int jfind(List<String> tok, int startIndex, String in, IIntPred condition) {
    return jfind(tok, startIndex, in, tokCondition(condition));
  }

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

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

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

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

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

  static public int jfind(List<String> tok, int startIdx, String[] tokinC, Object condition) {
    return findCodeTokens(tok, startIdx, false, tokinC, condition);
  }

  static public int jfind(List<String> tok, int startIdx, List<String> tokin, Object condition) {
    return jfind(tok, startIdx, codeTokensAsStringArray(tokin), condition);
  }

  static public List<String> jfind_preprocess(List<String> tok) {
    for (String type : litlist("quoted", "id", "int")) replaceSublist(tok, ll("<", "", type, "", ">"), ll("<" + type + ">"));
    replaceSublist(tok, ll("\\", "", "*"), ll("\\*"));
    return tok;
  }

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

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

  static public String joinSubList(List<String> l, IntRange r) {
    return r == null ? null : joinSubList(l, r.start, r.end);
  }

  static public 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 public Object dm_requireAndCallModule(String moduleLibID, String method, Object... args) {
    return dm_callModule(dm_requireModule(moduleLibID), method, args);
  }

  static public void printVars_str(Object... params) {
    print(renderVars_str(params));
  }

  static public <A> A proxy(Class<A> intrface, final Object target) {
    if (target == null)
      return null;
    if (isInstance(intrface, target))
      return (A) target;
    return (A) java.lang.reflect.Proxy.newProxyInstance(intrface.getClassLoader(), new Class[] { intrface }, new proxy_InvocationHandler(target));
  }

  static public <A> A proxy(Object target, Class<A> intrface) {
    return proxy(intrface, target);
  }

  static public int parseIntOpt(String s) {
    return parseIntOpt(s, 0);
  }

  static public int parseIntOpt(String s, int defValue) {
    return isInteger(s) ? parseInt(s) : defValue;
  }

  static public String getFileInfoField(File f, String field) {
    return getOneLineFileInfoField(f, field);
  }

  static public File localSnippetFile(long snippetID) {
    return localSnippetsDir(snippetID + ".text");
  }

  static public File localSnippetFile(String snippetID) {
    return localSnippetFile(parseSnippetID(snippetID));
  }

  static public boolean emptyString(String s) {
    return s == null || s.length() == 0;
  }

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

  static public String loadTextFile(File f, String defaultContents) {
    return loadTextFile(f, defaultContents, "UTF-8");
  }

  static public String loadTextFile(File f, String defaultContents, String encoding) {
    try {
      checkFileNotTooBigToRead(f);
      if (f == null || !f.exists())
        return defaultContents;
      FileInputStream fileInputStream = new FileInputStream(f);
      InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, encoding);
      return loadTextFile(inputStreamReader);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

  static public String loadTextFile(Reader reader) throws IOException {
    StringBuilder builder = new StringBuilder();
    try {
      char[] buffer = new char[1024];
      int n;
      while (-1 != (n = reader.read(buffer))) builder.append(buffer, 0, n);
    } finally {
      reader.close();
    }
    return str(builder);
  }

  static public File getProgramFile(String progID, String fileName) {
    if (new File(fileName).isAbsolute())
      return new File(fileName);
    return new File(getProgramDir(progID), fileName);
  }

  static public File getProgramFile(String fileName) {
    return getProgramFile(getProgramID(), fileName);
  }

  static public String urlencode(String x) {
    try {
      return URLEncoder.encode(unnull(x), "UTF-8");
    } catch (UnsupportedEncodingException e) {
      throw new RuntimeException(e);
    }
  }

  static public <A, B> Set<Map.Entry<A, B>> _entrySet(Map<A, B> map) {
    return map == null ? Collections.EMPTY_SET : map.entrySet();
  }

  static public String unnullForIteration(String s) {
    return s == null ? "" : s;
  }

  static public <A> Collection<A> unnullForIteration(Collection<A> l) {
    return l == null ? immutableEmptyList() : l;
  }

  static public <A> List<A> unnullForIteration(List<A> l) {
    return l == null ? immutableEmptyList() : l;
  }

  static public byte[] unnullForIteration(byte[] l) {
    return l == null ? emptyByteArray() : l;
  }

  static public int[] unnullForIteration(int[] l) {
    return l == null ? emptyIntArray() : l;
  }

  static public char[] unnullForIteration(char[] l) {
    return l == null ? emptyCharArray() : l;
  }

  static public double[] unnullForIteration(double[] l) {
    return l == null ? emptyDoubleArray() : l;
  }

  static public short[] unnullForIteration(short[] l) {
    return l == null ? emptyShortArray() : l;
  }

  static public <A, B> Map<A, B> unnullForIteration(Map<A, B> l) {
    return l == null ? immutableEmptyMap() : l;
  }

  static public <A> Iterable<A> unnullForIteration(Iterable<A> i) {
    return i == null ? immutableEmptyList() : i;
  }

  static public <A> A[] unnullForIteration(A[] a) {
    return a == null ? (A[]) emptyObjectArray() : a;
  }

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

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

  static public Symbol unnullForIteration(Symbol s) {
    return s == null ? emptySymbol() : s;
  }

  static public <A, B> Pair<A, B> unnullForIteration(Pair<A, B> p) {
    return p != null ? p : new Pair(null, null);
  }

  static public long unnullForIteration(Long l) {
    return l == null ? 0L : l;
  }

  static public boolean regionMatches(String a, int offsetA, String b, int offsetB, int len) {
    return a != null && b != null && a.regionMatches(offsetA, b, offsetB, len);
  }

  static public boolean regionMatches(String a, int offsetA, String b) {
    return regionMatches(a, offsetA, b, 0, l(b));
  }

  static public String javaTok_substringN(String s, int i, int j) {
    if (i == j)
      return "";
    if (j == i + 1 && s.charAt(i) == ' ')
      return " ";
    return s.substring(i, j);
  }

  static public String javaTok_substringC(String s, int i, int j) {
    return s.substring(i, j);
  }

  static public List<String> javaTokWithExisting(String s, List<String> existing) {
    ++javaTok_n;
    int nExisting = javaTok_opt && existing != null ? existing.size() : 0;
    ArrayList<String> tok = existing != null ? new ArrayList(nExisting) : new ArrayList();
    int l = s.length();
    int i = 0, n = 0;
    while (i < l) {
      int j = i;
      char c, d;
      while (j < l) {
        c = s.charAt(j);
        d = j + 1 >= l ? '\0' : s.charAt(j + 1);
        if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
          ++j;
        else if (c == '/' && d == '*') {
          do ++j; while (j < l && !s.substring(j, Math.min(j + 2, l)).equals("*/"));
          j = Math.min(j + 2, l);
        } else if (c == '/' && d == '/') {
          do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
        } else
          break;
      }
      if (n < nExisting && javaTokWithExisting_isCopyable(existing.get(n), s, i, j))
        tok.add(existing.get(n));
      else
        tok.add(javaTok_substringN(s, i, j));
      ++n;
      i = j;
      if (i >= l)
        break;
      c = s.charAt(i);
      d = i + 1 >= l ? '\0' : s.charAt(i + 1);
      if (c == '\'' && Character.isJavaIdentifierStart(d) && i + 2 < l && "'\\".indexOf(s.charAt(i + 2)) < 0) {
        j += 2;
        while (j < l && Character.isJavaIdentifierPart(s.charAt(j))) ++j;
      } else if (c == '\'' || c == '"') {
        char opener = c;
        ++j;
        while (j < l) {
          if (s.charAt(j) == opener) {
            ++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));
      else if (Character.isDigit(c)) {
        do ++j; while (j < l && Character.isDigit(s.charAt(j)));
        if (j < l && s.charAt(j) == 'L')
          ++j;
      } else if (c == '[' && d == '[') {
        do ++j; while (j + 1 < l && !s.substring(j, j + 2).equals("]]"));
        j = Math.min(j + 2, l);
      } else if (c == '[' && d == '=' && i + 2 < l && s.charAt(i + 2) == '[') {
        do ++j; while (j + 2 < l && !s.substring(j, j + 3).equals("]=]"));
        j = Math.min(j + 3, l);
      } else
        ++j;
      if (n < nExisting && javaTokWithExisting_isCopyable(existing.get(n), s, i, j))
        tok.add(existing.get(n));
      else
        tok.add(javaTok_substringC(s, i, j));
      ++n;
      i = j;
    }
    if ((tok.size() % 2) == 0)
      tok.add("");
    javaTok_elements += tok.size();
    return tok;
  }

  static public boolean javaTokWithExisting_isCopyable(String t, String s, int i, int j) {
    return t.length() == j - i && s.regionMatches(i, t, 0, j - i);
  }

  static public List<String> splitAtSpace(String s) {
    return empty(s) ? emptyList() : asList(s.split("\\s+"));
  }

  static public <A> boolean subListEquals(List<A> l, List<A> pat, int i) {
    if (i < 0)
      return false;
    int j = i + l(pat);
    if (j > l(l))
      return false;
    for (int k = i; k < j; k++) if (!eq(l.get(k), pat.get(k - i)))
      return false;
    return true;
  }

  static public <A> boolean subListEquals(List<A> l, int i, A... pat) {
    return subListEquals(l, asVirtualList(pat), i);
  }

  static public IntRange intRange(int start, int end) {
    return new IntRange(start, end);
  }

  static public int findEndOfBlock(List<String> tok, int i) {
    return tok_findEndOfBlock(tok, i);
  }

  static public boolean eqGet(List l, int i, Object o) {
    return eq(get(l, i), o);
  }

  static public <A, B> boolean eqGet(Map<A, B> map, A key, Object o) {
    return eq(mapGet(map, key), o);
  }

  static public int toInt_checked(long l) {
    if (l != (int) l)
      throw fail("Too large for int: " + l);
    return (int) l;
  }

  static public Rectangle maxWindowBounds() {
    return GraphicsEnvironment.getLocalGraphicsEnvironment().getMaximumWindowBounds();
  }

  static public int packFrame_minw = 150, packFrame_minh = 50;

  static public <A extends Component> A packFrame(final A c) {
    {
      swing(() -> {
        Window w = getWindow(c);
        if (w != null) {
          w.pack();
          int maxW = getScreenWidth() - 50, maxH = getScreenHeight() - 50;
          w.setSize(min(maxW, max(w.getWidth(), packFrame_minw)), min(maxH, max(w.getHeight(), packFrame_minh)));
        }
      });
    }
    return c;
  }

  static public JFrame packFrame(ButtonGroup g) {
    return packFrame(getFrame(g));
  }

  static public JFrame showFrame() {
    return makeFrame();
  }

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

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

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

  static public JFrame showFrame(final JFrame f) {
    if (f != null) {
      swing(() -> {
        if (frameTooSmall(f))
          frameStandardSize(f);
        if (!f.isVisible())
          f.setVisible(true);
        if (f.getState() == Frame.ICONIFIED)
          f.setState(Frame.NORMAL);
      });
    }
    return f;
  }

  static public 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 public Frame getAWTFrame(final Object _o) {
    return swing(new F0<Frame>() {

      public Frame get() {
        try {
          Object o = _o;
          if (o instanceof ButtonGroup)
            o = first(buttonsInGroup((ButtonGroup) o));
          if (!(o instanceof Component))
            return null;
          Component c = (Component) o;
          while (c != null) {
            if (c instanceof Frame)
              return (Frame) c;
            c = c.getParent();
          }
          return null;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "O o = _o;\r\n    /*\r\n    ifdef HaveProcessing\r\n      if (o instanceof PApplet) ...";
      }
    });
  }

  static public Object nuObject(String className, Object... args) {
    try {
      return nuObject(classForName(className), args);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public <A> A nuObject(Class<A> c, Object... args) {
    try {
      if (args == null || args.length == 0)
        return nuObjectWithoutArguments(c);
      Constructor m = nuObject_findConstructor(c, args);
      makeAccessible(m);
      return (A) m.newInstance(args);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

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

  static public <A> List<A> drop(Iterable<A> c, Object pred) {
    return antiFilter(c, pred);
  }

  static public List drop(Object pred, Iterable c) {
    return antiFilter(pred, c);
  }

  static public List drop(Object pred, Object[] c) {
    return antiFilter(pred, c);
  }

  static public <A, B extends A> List<B> drop(Iterable<B> c, F1<A, Boolean> pred) {
    return antiFilter(c, pred);
  }

  static public <A, B extends A> List<B> drop(F1<A, Boolean> pred, Iterable<B> c) {
    return antiFilter(pred, c);
  }

  static public <A, B extends A> List<B> drop(Iterable<B> c, IF1<A, Boolean> pred) {
    return antiFilter(c, pred);
  }

  static public <A, B extends A> List<B> drop(IF1<A, Boolean> pred, Iterable<B> c) {
    return antiFilter(pred, c);
  }

  static public <A> ArrayList<A> toList(A[] a) {
    return asList(a);
  }

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

  static public ArrayList<Short> toList(short[] a) {
    return asList(a);
  }

  static public ArrayList<Long> toList(long[] a) {
    return asList(a);
  }

  static public <A> ArrayList<A> toList(Set<A> s) {
    return asList(s);
  }

  static public <A> ArrayList<A> toList(Iterable<A> s) {
    return asList(s);
  }

  static public Object[] flattenArray2(Object... a) {
    List l = new ArrayList();
    if (a != null)
      for (Object x : a) if (x instanceof Object[])
        l.addAll(asList((Object[]) x));
      else if (x instanceof Collection)
        l.addAll((Collection) x);
      else
        l.add(x);
    return asObjectArray(l);
  }

  static public JPanel smartAdd(JPanel panel, List parts) {
    for (Object o : parts) addToContainer(panel, wrapForSmartAdd(o));
    return panel;
  }

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

  static public void disposePossiblyInternalFrame(Component c) {
    Container f = (Container) (getPossiblyInternalFrame(c));
    if (f instanceof JInternalFrame)
      disposeInternalFrame((JInternalFrame) f);
    else if (f instanceof Window)
      disposeWindow(f);
  }

  static public <A extends Component> A _recordNewSwingComponent(A c) {
    if (c != null)
      callF((Object) vm_generalMap_get("newSwingComponentRegistry"), (Object) c);
    return c;
  }

  static public JComponent componentToJComponent(Component c) {
    if (c instanceof JComponent)
      return (JComponent) c;
    if (c instanceof JFrame)
      return ((JFrame) c).getRootPane();
    if (c == null)
      return null;
    throw fail("boohoo " + getClassName(c));
  }

  static public JScrollPane jscroll(Component c) {
    return swing(() -> {
      return c instanceof JScrollPane ? ((JScrollPane) c) : new JScrollPane(c);
    });
  }

  static public Border jCompoundBorder(Border inner, Border outer) {
    if (inner == null)
      return outer;
    if (outer == null)
      return inner;
    return BorderFactory.createCompoundBorder(inner, outer);
  }

  static public boolean startsWithOneOf(String s, String... l) {
    for (String x : l) if (startsWith(s, x))
      return true;
    return false;
  }

  static public boolean startsWithOneOf(String s, Matches m, String... l) {
    for (String x : l) if (startsWith(s, x, m))
      return true;
    return false;
  }

  static public boolean isAGIBlueDomain(String domain) {
    return domainIsUnder(domain, theAGIBlueDomain());
  }

  static public String hostNameFromURL(String url) {
    try {
      return empty(url) ? null : new URL(url).getHost();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public <A extends JComponent> A componentPopupMenuItem(A c, String name, Runnable action) {
    componentPopupMenu(c, new VF1<JPopupMenu>() {

      public void get(JPopupMenu menu) {
        try {
          addMenuItem(menu, name, action);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "addMenuItem(menu, name, action);";
      }
    });
    return c;
  }

  static public void componentPopupMenuItem(JComponent c, JMenuItem menuItem) {
    componentPopupMenu(c, new VF1<JPopupMenu>() {

      public void get(JPopupMenu menu) {
        try {
          addMenuItem(menu, menuItem);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "addMenuItem(menu, menuItem);";
      }
    });
  }

  static public Set vm_generalWeakSet(Object name) {
    synchronized (vm_generalMap()) {
      Set set = (Set) (vm_generalMap_get(name));
      if (set == null)
        vm_generalMap_put(name, set = newWeakHashSet());
      return set;
    }
  }

  static public void setMeta(IMeta o, Object key, Object value) {
    metaMapPut(o, key, value);
  }

  static public void setMeta(Object o, Object key, Object value) {
    metaMapPut(o, key, value);
  }

  static public int boolToInt(boolean b) {
    return b ? 1 : 0;
  }

  static public <A> Set<A> createOrAddToSyncLinkedHashSet(Set<A> set, A a) {
    if (set == null)
      set = syncLinkedHashSet();
    set.add(a);
    return set;
  }

  static public Class main() {
    return getMainClass();
  }

  static public <A> void remove(List<A> l, int i) {
    if (l != null && i >= 0 && i < l(l))
      l.remove(i);
  }

  static public <A> void remove(Collection<A> l, A a) {
    if (l != null)
      l.remove(a);
  }

  static public <A, B> B remove(Map<A, B> map, Object a) {
    return map == null ? null : map.remove(a);
  }

  static public void remove(BitSet bs, int i) {
    bs.clear(i);
  }

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

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

  static public <A> void pcallF_typed(VF1<A> f, A a) {
    try {
      {
        if (f != null)
          f.get(a);
      }
    } catch (Throwable __e) {
      pcallFail(__e);
    }
  }

  static public <A> void pcallF_typed(IVF1<A> f, A a) {
    try {
      {
        if (f != null)
          f.get(a);
      }
    } catch (Throwable __e) {
      pcallFail(__e);
    }
  }

  static public <A, B> void pcallF_typed(IVF2<A, B> f, A a, B b) {
    try {
      {
        if (f != null)
          f.get(a, b);
      }
    } catch (Throwable __e) {
      pcallFail(__e);
    }
  }

  static public Object pcallF_typed(Runnable r) {
    try {
      {
        if (r != null)
          r.run();
      }
    } catch (Throwable __e) {
      pcallFail(__e);
    }
    return null;
  }

  static public <A> A pcallF_typed(IF0<A> f) {
    try {
      return f == null ? null : f.get();
    } catch (Throwable __e) {
      pcallFail(__e);
    }
    return null;
  }

  static public <A, B> B pcallF_typed(IF1<A, B> f, A a) {
    try {
      return f == null ? null : f.get(a);
    } catch (Throwable __e) {
      pcallFail(__e);
    }
    return null;
  }

  static public void newPing() {
    var tl = newPing_actionTL();
    Runnable action = tl == null ? null : tl.get();
    {
      if (action != null)
        action.run();
    }
  }

  static public void failIfUnlicensed() {
    assertTrue("license off", licensed());
  }

  static public Thread currentThread() {
    return Thread.currentThread();
  }

  static public PersistableThrowable persistableThrowable(Throwable e) {
    return e == null ? null : new PersistableThrowable(e);
  }

  static public Object pcallF_minimalExceptionHandling(Object f, Object... args) {
    try {
      return callFunction(f, args);
    } catch (Throwable e) {
      System.out.println(getStackTrace(e));
      _storeException(e);
    }
    return null;
  }

  static public String makeRandomID(int length) {
    return makeRandomID(length, defaultRandomGenerator());
  }

  static public String makeRandomID(int length, Random random) {
    char[] id = new char[length];
    for (int i = 0; i < id.length; i++) id[i] = (char) ((int) 'a' + random.nextInt(26));
    return new String(id);
  }

  static public String makeRandomID(Random r, int length) {
    return makeRandomID(length, r);
  }

  static public String consoleInput() {
    if (headless())
      return null;
    return getText(consoleInputField());
  }

  static public void consoleInput(String text) {
    consoleSetInput(text);
  }

  static public void consoleSetInput(final String text) {
    if (headless())
      return;
    setTextAndSelectAll(consoleInputField(), text);
    focusConsole();
  }

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

  static public String getProgramID(Class c) {
    String id = (String) getOpt(c, "programID");
    if (nempty(id))
      return formatSnippetID(id);
    return "?";
  }

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

  static public <A> ArrayList<A> litlist(A... a) {
    ArrayList l = new ArrayList(a.length);
    for (A x : a) l.add(x);
    return l;
  }

  static public String emptyToNull(String s) {
    return eq(s, "") ? null : s;
  }

  static public <A, B> Map<A, B> emptyToNull(Map<A, B> map) {
    return empty(map) ? null : map;
  }

  static public void hideControls() {
    {
      swing(() -> {
        removeFromConsole2(showControls_controls);
        showControls_controls = null;
      });
    }
  }

  static public void addToConsole2(Component toAdd) {
    Container cp = consoleMainContainer();
    if (cp == null)
      return;
    Container cp2 = (Container) getCenterComponent(cp);
    replaceCenterComponent(cp, centerAndSouth(cp2, toAdd));
    validateFrame(cp);
  }

  static public JPanel jcenteredline(final Component... components) {
    return swing(new F0<JPanel>() {

      public JPanel get() {
        try {
          return jFullCenter(hstackWithSpacing(components));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return jFullCenter(hstackWithSpacing(components));";
      }
    });
  }

  static public JPanel jcenteredline(List<? extends Component> components) {
    return jcenteredline(asArray(Component.class, components));
  }

  static public String addAlternateStdFunction(String listID) {
    {
      AutoCloseable __1 = tempShowLoadingAnimation();
      try {
        return addAlternateStdFunction(listID, findLatestInclude().id, true);
      } finally {
        _close(__1);
      }
    }
  }

  static public String addAlternateStdFunction(String listID, boolean realEdit) {
    return addAlternateStdFunction(listID, findLatestInclude().id, realEdit);
  }

  static public String addAlternateStdFunction(String listID, String snippetID, boolean realEdit) {
    snippetID = fsI(snippetID);
    {
      AutoCloseable __2 = tempShowLoadingAnimation();
      try {
        List<String> names = findFunctionDefinitions(loadSnippet(snippetID));
        printStructure("Functions defined in " + snippetID + ": ", names);
        if (empty(names))
          return "No functions found in " + snippetID;
        String name = firstNotStartingWith(names, "_onLoad_");
        if (empty(names))
          return "No definable functions found in " + snippetID;
        String text = loadSnippet(listID);
        Map<String, String> map = tok_findStandardFunctionDefinitions(javaTok(text));
        String def = map.get(name);
        String result = "";
        if (def == null) {
          print(result = "Defining " + name + ".");
          String newText = appendWithNewLine(text, "function " + name + " is in " + snippetID + ".");
          print();
          print(unidiff(text, newText));
          if (!realEdit)
            print(result += " Not editing (test mode).");
          else {
            editSnippet(listID, newText);
            triggerTranspilerDirty();
            print(result += " Edited " + listID + ". Now " + countLines(newText) + " lines!");
          }
        } else {
          print(result = "Function " + name + " already defined as " + def);
          if (sameSnippetID(def, snippetID))
            print("Exiting.");
          else
            print("Will not redefine as " + snippetID + ".");
        }
        return result;
      } finally {
        _close(__2);
      }
    }
  }

  static public Map<String, String> stdFunctions_cached_map;

  static public Lock stdFunctions_cached_lock = lock();

  static public Map<String, String> stdFunctions_cached() {
    Lock __0 = stdFunctions_cached_lock;
    lock(__0);
    try {
      if (stdFunctions_cached_map == null)
        stdFunctions_cached_map = stdFunctions_uncached();
      return stdFunctions_cached_map;
    } finally {
      unlock(__0);
    }
  }

  static synchronized public void stdFunctions_clearCache() {
    stdFunctions_cached_map = null;
  }

  static public Set<String> findFullFunctionDefs_keywords = new HashSet(splitAtSpace("static svoid ssvoid ssynchronized sbool sS sO sL"));

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

  static public List<List<String>> findFullFunctionDefs(String s, boolean topLevelOnly) {
    return findFullFunctionDefs(javaTok(s), topLevelOnly);
  }

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

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

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

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

  static public int indexOfAny(String s, String chars) {
    return indexOfAny(s, 0, chars);
  }

  static public List<String> tok_parseArgsDeclList(List<String> tok) {
    return tok_parseArgsList(tok, getBracketMapIncludingAngleBrackets(tok));
  }

  static public String jreplace(String s, String in, String out) {
    return jreplace(s, in, out, null);
  }

  static public String jreplace(String s, String in, String out, Object condition) {
    List<String> tok = javaTok(s);
    return jreplace(tok, in, out, condition) ? join(tok) : s;
  }

  static public boolean jreplace(List<String> tok, String in, String out) {
    return jreplace(tok, in, out, false, true, null);
  }

  static public boolean jreplace(List<String> tok, String in, String out, Object condition) {
    return jreplace(tok, in, out, false, true, condition);
  }

  static public boolean jreplace(List<String> tok, String in, ITokCondition condition, String out) {
    return jreplace(tok, in, out, (Object) condition);
  }

  static public boolean jreplace(List<String> tok, String in, String out, IF2<List<String>, Integer, Boolean> condition) {
    return jreplace(tok, in, out, (Object) condition);
  }

  static public boolean jreplace(List<String> tok, String in, String out, boolean ignoreCase, boolean reTok, Object condition) {
    String[] toks = javaTokForJFind_array(in);
    int lTokin = toks.length * 2 + 1;
    boolean anyChange = false;
    int i = -1;
    for (int n = 0; n < 10000; n++) {
      i = findCodeTokens(tok, i + 1, ignoreCase, toks, condition);
      if (i < 0)
        return anyChange;
      List<String> subList = tok.subList(i - 1, i + lTokin - 1);
      String expansion = jreplaceExpandRefs(out, subList);
      int end = i + lTokin - 2;
      clearAllTokens(tok, i, end);
      tok.set(i, expansion);
      if (reTok)
        reTok(tok, i, end);
      i = end;
      anyChange = true;
    }
    throw fail("woot? 10000! " + quote(in) + " => " + quote(out));
  }

  static public boolean jreplace_debug = false;

  static public <A> List<A> subList(List<A> l, int startIndex) {
    return subList(l, startIndex, l(l));
  }

  static public <A> List<A> subList(int startIndex, List<A> l) {
    return subList(l, startIndex);
  }

  static public <A> List<A> subList(int startIndex, int endIndex, List<A> l) {
    return subList(l, startIndex, endIndex);
  }

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

  static public <A> List<A> subList(List<A> l, IntRange r) {
    return subList(l, r.start, r.end);
  }

  static public <A> boolean containsOneOf(Collection<A> l, A... x) {
    if (l instanceof Set) {
      if (x != null)
        for (A a : x) if (l.contains(a))
          return true;
    } else {
      for (A a : unnull(l)) if (eqOneOf(a, x))
        return true;
    }
    return false;
  }

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

  static public boolean containsOneOf(String s, String... x) {
    for (String o : x) if (contains(s, o))
      return true;
    return false;
  }

  static public List<String> trimAll(String... l) {
    return trimAll(asList(l));
  }

  static public List<String> trimAll(Collection<String> l) {
    List<String> l2 = new ArrayList();
    if (l != null)
      for (String s : l) l2.add(trim(s));
    return l2;
  }

  static public List map(Iterable l, Object f) {
    return map(f, l);
  }

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

  static public List map(Map map, Object f) {
    List x = new ArrayList();
    if (map != null)
      for (Object _e : map.entrySet()) {
        ping();
        Map.Entry e = (Map.Entry) _e;
        x.add(callF(f, e.getKey(), e.getValue()));
      }
    return x;
  }

  static public List map(Object f, Object[] l) {
    return map(f, asList(l));
  }

  static public List map(Object[] l, Object f) {
    return map(f, l);
  }

  static public List map(Object f, Map map) {
    return map(map, f);
  }

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

  static public <A, B> List<B> map(F1<A, B> f, Iterable<A> l) {
    List x = emptyList(l);
    if (l != null)
      for (A o : l) {
        ping();
        x.add(callF(f, o));
      }
    return x;
  }

  static public <A, B> List<B> map(IF1<A, B> f, Iterable<A> l) {
    return map(l, f);
  }

  static public <A, B> List<B> map(Iterable<A> l, IF1<A, B> f) {
    List x = emptyList(l);
    if (l != null) {
      var it = l.iterator();
      if (it.hasNext()) {
        var pingSource = pingSource();
        do {
          ping(pingSource);
          x.add(f.get(it.next()));
        } while (it.hasNext());
      }
    }
    return x;
  }

  static public <A, B> List<B> map(IF1<A, B> f, A[] l) {
    return map(l, f);
  }

  static public <A, B> List<B> map(A[] l, IF1<A, B> f) {
    List x = emptyList(l);
    if (l != null)
      for (A o : l) {
        ping();
        x.add(f.get(o));
      }
    return x;
  }

  static public <A, B, C> List<C> map(Map<A, B> map, IF2<A, B, C> f) {
    List x = new ArrayList();
    if (map != null)
      for (Map.Entry<A, B> e : map.entrySet()) {
        ping();
        x.add(f.get(e.getKey(), e.getValue()));
      }
    return x;
  }

  static public <A, B> List<A> map(IF1<A, B> f, A data1, A... moreData) {
    List x = emptyList(l(moreData) + 1);
    x.add(f.get(data1));
    if (moreData != null)
      for (A o : moreData) {
        ping();
        x.add(f.get(o));
      }
    return x;
  }

  static public String tok_dropFinal(String s) {
    return jreplace(s, "final", "");
  }

  static public <A, B> List<B> lmap(IF1<A, B> f, Iterable<A> l) {
    return lambdaMap(f, l);
  }

  static public <A, B> List<B> lmap(IF1<A, B> f, A[] l) {
    return lambdaMap(f, l);
  }

  static public String tok_nameOfParam(String param) {
    List<String> tok = javaTok(param);
    tok = takeFirst(tok, smartLastIndexOf(tok, "default"));
    return lastIdentifier(tok);
  }

  static public String joinWithEmptyLines(Iterable<String> l) {
    return join("\n\n", map(__38 -> rtrim(__38), l));
  }

  static public String joinWithEmptyLines(String... l) {
    return joinWithEmptyLines(asList(l));
  }

  static public <A> A printIndent(A o) {
    print(indentx(str(o)));
    return o;
  }

  static public <A> A printIndent(String indent, A o) {
    print(indentx(indent, str(o)));
    return o;
  }

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

  static public boolean isStandardFunction(String name) {
    return isIdentifier(name) && stdFunctions_cached().containsKey(name);
  }

  static public String sfSnippet(String function) {
    return stdFunctions_cached().get(function);
  }

  static public Snippet createSnippet(Snippet s) {
    s.id = createSnippet(s.text, s.title, parseSnippetType(s.type));
    return s;
  }

  static public String createSnippet(String text, String title, int type) {
    return createSnippet(text, title, type, true);
  }

  static public String createSnippet(String text, String title, int type, boolean isPublic) {
    return createSnippet(text, title, type, standardCredentialsUser(), standardCredentialsPass(), isPublic);
  }

  static public String createSnippet(String text, String title, int type, String user, String pass) {
    return createSnippet(text, title, type, user, pass, true);
  }

  static public String createSnippet(String text, String title, int type, String user, String pass, boolean isPublic) {
    String addURL = tb_mainServer() + "/tb-int/add_snippet.php";
    Map query = litmap("type", type, "high", 1, "public", isPublic ? 1 : 0, "text", text, "name", title, "_user", user, "_pass", pass);
    String answer = doPost(query, addURL);
    if (!isSnippetID(answer))
      throw fail(answer);
    print("Snippet created. " + formatSnippetID(answer));
    return formatSnippetID(answer);
  }

  static public String addStdClass() {
    {
      AutoCloseable __1 = tempShowLoadingAnimation();
      try {
        return addStdClass(findLatestInclude().id, true);
      } finally {
        _close(__1);
      }
    }
  }

  static public String addStdClass(boolean realEdit) {
    return addStdClass(findLatestInclude().id, realEdit);
  }

  static public String addStdClass(String snippetID, boolean realEdit) {
    {
      AutoCloseable __2 = tempShowLoadingAnimation();
      try {
        snippetID = fsI(snippetID);
        List<String> tok = javaTokSnippet(snippetID);
        List<String> names = map(__39 -> getClassDeclarationName(__39), allClasses(tok));
        addAll(names, keys(tok_findRewrites(tok)));
        printStructure("Classes defined in " + snippetID + ": ", names);
        if (empty(names))
          return "No classes found in " + snippetID;
        String name = first(names);
        String text = loadSnippet("#1003674");
        Map<String, String> map = standardClassesMap_uncached();
        String def = map.get(name);
        String result = "";
        if (def == null) {
          print(result = "Defining " + name + ".");
          String newText = addToStdClassesList(text, name, snippetID);
          print();
          print(unidiff(text, newText));
          if (!realEdit)
            print(result += " Not editing (test mode).");
          else {
            editSnippet("#1003674", newText);
            triggerTranspilerDirty();
            print(result += " Edited #1003674. Now " + countLines(newText) + " lines - " + n2(l(map) + 1, "total class", "total classes") + "!");
          }
        } else {
          print(result = "Class " + name + " already defined as " + def);
          if (sameSnippetID(def, snippetID))
            print("Exiting.");
          else
            print("Will not redefine as " + snippetID + ".");
        }
        return result;
      } finally {
        _close(__2);
      }
    }
  }

  static public String tok_reverseFunctionArguments(String s) {
    return join(tok_reverseFunctionArguments(javaTok(s)));
  }

  static public List<String> tok_reverseFunctionArguments(List<String> tok) {
    tok = first(findFullFunctionDefs(tok, true));
    String name = tok_methodName(tok);
    boolean isVoid = tok_staticFunctionAlwaysReturnsVoid(tok, name);
    IntRange r = tok_findArgs(tok);
    List<Pair<String, String>> typesAndNames = tok_typesAndNamesOfParams(subList(tok, r));
    replaceSublist(tok, shrinkIntRange(r, 1), ll(tok_joinTypesAndNames(reversed(typesAndNames))));
    replaceSublist(tok, cloneList(tok_methodBody(tok)), ll(" {\n  " + (isVoid ? "" : "ret ") + name + "(" + joinWithComma(secondOfPairs(typesAndNames)) + ");" + "\n}\n"));
    for (int i = 1; i < l(tok); i += 2) if (functionAdjuvantKeywords().contains(tok.get(i)))
      clearTokens(tok, i, i + 2);
    return tok;
  }

  static public String javaDropAllComments(String s) {
    return join(javaDropAllComments(javaTok(s)));
  }

  static public List<String> javaDropAllComments(List<String> tok) {
    for (int i = 0; i < l(tok); i += 2) tok.set(i, tok_javaDropCommentsFromWhitespace(tok.get(i)));
    return tok;
  }

  static public <A> boolean containsSubList(List<A> x, List<A> y) {
    return indexOfSubList(x, y) >= 0;
  }

  static public <A> boolean containsSubList(List<A> x, A... y) {
    return indexOfSubList(x, y, 0) >= 0;
  }

  static public Map<String, String> standardFunctionMap() {
    return stdFunctions_cached();
  }

  static public List<String> tok_makeArgumentsToAllFunctionsFinal(List<String> tok) {
    boolean change = false;
    for (List<String> tokF : findFullFunctionDefs(tok, true)) {
      IntRange r = tok_findArgs(tokF);
      if (r == null)
        continue;
      Map<Integer, Integer> bracketMap = getBracketMapIncludingAngleBrackets(tokF);
      int i = r.start + 1;
      while (i < r.end - 2) {
        if (neqGet(tokF, i, "final")) {
          tokPrepend(tokF, i, "final ");
          change = true;
        }
        while (i < r.end && neqGet(tokF, i, ",")) i = or(bracketMap.get(i), i) + 2;
        i += 2;
      }
    }
    if (change)
      reTok(tok);
    return tok;
  }

  static public String tok_makeArgumentsToAllFunctionsFinal(String s) {
    return join(tok_makeArgumentsToAllFunctionsFinal(javaTok(s)));
  }

  static public Runnable asRunnable(Object o) {
    return toRunnable(o);
  }

  static public void _inheritThreadInfo(Object info) {
    _threadInheritInfo(info);
  }

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

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

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

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

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

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

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

  static public <A extends Comparable<A>> A max(Iterable<A> l) {
    A max = null;
    var it = iterator(l);
    if (it.hasNext()) {
      max = it.next();
      while (it.hasNext()) {
        A a = it.next();
        if (cmp(a, max) > 0)
          max = a;
      }
    }
    return max;
  }

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

  static public short max(short[] c) {
    short x = -0x8000;
    for (short d : c) if (d > x)
      x = d;
    return x;
  }

  static public int max(int[] c) {
    int x = Integer.MIN_VALUE;
    for (int d : c) if (d > x)
      x = d;
    return x;
  }

  static public <A extends Comparable<A>> A max(A a, A b) {
    return cmp(a, b) >= 0 ? a : b;
  }

  static public WeakHasherMap<Symbol, Boolean> symbol_map = new WeakHasherMap(new Hasher<Symbol>() {

    public int hashCode(Symbol symbol) {
      return symbol.text.hashCode();
    }

    public boolean equals(Symbol a, Symbol b) {
      if (a == null)
        return b == null;
      return b != null && eq(a.text, b.text);
    }
  });

  static public Symbol symbol(String s) {
    if (s == null)
      return null;
    synchronized (symbol_map) {
      Symbol symbol = new Symbol(s, true);
      Symbol existingSymbol = symbol_map.findKey(symbol);
      if (existingSymbol == null)
        symbol_map.put(existingSymbol = symbol, true);
      return existingSymbol;
    }
  }

  static public Symbol symbol(CharSequence s) {
    if (s == null)
      return null;
    if (s instanceof Symbol)
      return (Symbol) s;
    if (s instanceof String)
      return symbol((String) s);
    return symbol(str(s));
  }

  static public Symbol symbol(Object o) {
    return symbol((CharSequence) o);
  }

  static public <A> ArrayList<A> cloneListSynchronizingOn(Collection<A> l, Object mutex) {
    if (l == null)
      return new ArrayList();
    synchronized (mutex) {
      return new ArrayList<A>(l);
    }
  }

  static public <A, B> Set<A> keys(Map<A, B> map) {
    return map == null ? new HashSet() : map.keySet();
  }

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

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

  static public <A, B> Set<A> keys(IMultiMap<A, B> mm) {
    return mm.keySet();
  }

  static public <A> A popLast(List<A> l) {
    return liftLast(l);
  }

  static public <A> List<A> popLast(int n, List<A> l) {
    return liftLast(n, l);
  }

  static public <A extends JComponent> A jtransparent(final A a) {
    {
      swing(() -> {
        a.setOpaque(false);
      });
    }
    return a;
  }

  static public JPanel borderLayoutPanel() {
    return jpanel(new BorderLayout());
  }

  static public <A> ArrayList<A> asList(A[] a) {
    return a == null ? new ArrayList<A>() : new ArrayList<A>(Arrays.asList(a));
  }

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

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

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

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

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

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

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

  static public <A> ArrayList<A> asList(Iterator<A> it) {
    ArrayList l = new ArrayList();
    if (it != null)
      while (it.hasNext()) l.add(it.next());
    return l;
  }

  static public <A> ArrayList<A> asList(IterableIterator<A> s) {
    return asList((Iterator) s);
  }

  static public <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 public <A> ArrayList<A> asList(Enumeration<A> e) {
    ArrayList l = new ArrayList();
    if (e != null)
      while (e.hasMoreElements()) l.add(e.nextElement());
    return l;
  }

  static public <A> ArrayList<A> asList(ReverseChain<A> c) {
    return c == null ? emptyList() : c.toList();
  }

  static public <A> List<A> asList(Pair<A, A> p) {
    return p == null ? null : ll(p.a, p.b);
  }

  static public Object collectionMutex(List l) {
    return l;
  }

  static public Object collectionMutex(Object o) {
    if (o instanceof List)
      return o;
    String c = className(o);
    return o;
  }

  static public <A> A setThreadLocal(ThreadLocal<A> tl, A value) {
    if (tl == null)
      return null;
    A old = tl.get();
    tl.set(value);
    return old;
  }

  static public String mcName() {
    return mc().getName();
  }

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

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

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

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

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

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

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

  static public <A> int smartIndexOf(List<A> l, A sub, int start) {
    int i = indexOf(l, sub, start);
    return i < 0 ? l(l) : i;
  }

  static public String quoteIfNotIdentifierOrInteger(String s) {
    if (s == null)
      return null;
    return isJavaIdentifier(s) || isInteger(s) ? s : quote(s);
  }

  static public Throwable getExceptionCause(Throwable e) {
    Throwable c = e.getCause();
    return c != null ? c : e;
  }

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

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

  static public boolean methodIsStatic(Method m) {
    return (m.getModifiers() & Modifier.STATIC) != 0;
  }

  static public boolean argumentCompatibleWithType(Object arg, Class type) {
    return arg == null ? !type.isPrimitive() : isInstanceX(type, arg);
  }

  static public void arraycopy(Object[] a, Object[] b) {
    if (a != null && b != null)
      arraycopy(a, 0, b, 0, Math.min(a.length, b.length));
  }

  static public void arraycopy(Object src, int srcPos, int destPos, int n) {
    arraycopy(src, srcPos, src, destPos, n);
  }

  static public void arraycopy(Object src, int srcPos, Object dest, int destPos, int n) {
    if (n != 0)
      System.arraycopy(src, srcPos, dest, destPos, n);
  }

  static public List<String> getClassNames(Collection l) {
    List<String> out = new ArrayList();
    if (l != null)
      for (Object o : l) out.add(o == null ? null : getClassName(o));
    return out;
  }

  static public boolean shortClassNameIs(Object o, String name) {
    return eq(shortClassName(o), name);
  }

  static public boolean shortClassNameIs(String name, Object o) {
    return shortClassNameIs(o, name);
  }

  static public <A> Iterator<A> iterator(Iterable<A> c) {
    return c == null ? emptyIterator() : c.iterator();
  }

  static public char charAt(String s, int i) {
    return s != null && i >= 0 && i < s.length() ? s.charAt(i) : '\0';
  }

  static public Map<Thread, Object> vm_threadInterruptionReasonsMap() {
    return vm_generalWeakSubMap("Thread interruption reasons");
  }

  static public String strOr(Object o, String ifNull) {
    return o == null ? ifNull : str(o);
  }

  static public void lockOrFail(Lock lock, long timeout) {
    try {
      ping();
      vmBus_send("locking", lock, "thread", currentThread());
      if (!lock.tryLock(timeout, TimeUnit.MILLISECONDS)) {
        String s = "Couldn't acquire lock after " + timeout + " ms.";
        if (lock instanceof ReentrantLock) {
          ReentrantLock l = (ReentrantLock) lock;
          s += " Hold count: " + l.getHoldCount() + ", owner: " + call(l, "getOwner");
        }
        throw fail(s);
      }
      vmBus_send("locked", lock, "thread", currentThread());
      ping();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public ReentrantLock fairLock() {
    return new ReentrantLock(true);
  }

  static public File loadImageAsFile(String snippetIDOrURL) {
    try {
      if (isURL(snippetIDOrURL))
        throw fail("not implemented");
      if (!isSnippetID(snippetIDOrURL))
        throw fail("Not a URL or snippet ID: " + snippetIDOrURL);
      String snippetID = "" + parseSnippetID(snippetIDOrURL);
      File file = imageSnippetCacheFile(snippetID);
      if (fileSize(file) > 0)
        return file;
      String imageURL = snippetImageURL_noHttps(snippetID);
      System.err.println("Loading image: " + imageURL);
      byte[] data = loadBinaryPage(imageURL);
      saveBinaryFile(file, data);
      return file;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public File DiskSnippetCache_file(long snippetID) {
    return new File(getGlobalCache(), "data_" + snippetID + ".jar");
  }

  public static File DiskSnippetCache_getLibrary(long snippetID) throws IOException {
    File file = DiskSnippetCache_file(snippetID);
    return file.exists() ? file : null;
  }

  public static File DiskSnippetCache_getLibrary(String snippetID) {
    try {
      return DiskSnippetCache_getLibrary(psI(snippetID));
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  static public byte[] loadDataSnippetImpl(String snippetID) throws IOException {
    byte[] data;
    try {
      URL url = new URL(dataSnippetLink(snippetID));
      print("Loading library: " + hideCredentials(url));
      try {
        data = loadBinaryPage(url.openConnection());
      } catch (RuntimeException e) {
        data = null;
      }
      if (data == null || data.length == 0) {
        url = new URL(tb_mainServer() + "/blobs/" + parseSnippetID(snippetID));
        print("Loading library: " + hideCredentials(url));
        data = loadBinaryPage(url.openConnection());
      }
      print("Bytes loaded: " + data.length);
    } catch (FileNotFoundException e) {
      throw new IOException("Binary snippet #" + snippetID + " not found or not public");
    }
    return data;
  }

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

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

  static public File loadDataSnippetToFile(String snippetID) {
    try {
      IResourceLoader rl = vm_getResourceLoader();
      if (rl != null)
        return rl.loadLibrary(snippetID);
      return loadDataSnippetToFile_noResourceLoader(snippetID);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public File loadDataSnippetToFile_noResourceLoader(String snippetID) {
    try {
      snippetID = fsI(snippetID);
      File f = DiskSnippetCache_file(parseSnippetID(snippetID));
      List<URL> urlsTried = new ArrayList();
      List<Throwable> errors = new ArrayList();
      try {
        URL url = addAndReturn(urlsTried, new URL(dataSnippetLink(snippetID)));
        print("Loading library: " + hideCredentials(url));
        try {
          loadBinaryPageToFile(openConnection(url), f);
          if (fileSize(f) == 0)
            throw fail();
        } catch (Throwable e) {
          errors.add(e);
          url = addAndReturn(urlsTried, new URL(tb_mainServer() + "/blobs/" + psI(snippetID)));
          print(e);
          print("Trying other server: " + hideCredentials(url));
          loadBinaryPageToFile(openConnection(url), f);
          print("Got bytes: " + fileSize(f));
        }
        if (fileSize(f) == 0)
          throw fail();
        System.err.println("Bytes loaded: " + fileSize(f));
      } catch (Throwable e) {
        errors.add(e);
        throw fail("Binary snippet " + snippetID + " not found or not public. URLs tried: " + allToString(urlsTried) + ", errors: " + allToString(errors));
      }
      return f;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public byte[] isGIF_magic = bytesFromHex("47494638");

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

  static public boolean isGIF(File f) {
    return isGIF(loadBeginningOfBinaryFile(f, l(isGIF_magic)));
  }

  static public String f2s(File f) {
    return f == null ? null : f.getAbsolutePath();
  }

  static public String f2s(String s) {
    return f2s(newFile(s));
  }

  static public String f2s(java.nio.file.Path p) {
    return p == null ? null : f2s(p.toFile());
  }

  static public <A> void setVar(IVar<A> v, A value) {
    if (v != null)
      v.set(value);
  }

  static public <A> IVF1<A> setVar(IVar<A> v) {
    return a -> {
      if (v != null)
        v.set(a);
    };
  }

  static public Object callFunction(Object f, Object... args) {
    return callF(f, args);
  }

  static public PCallPolicy pcallPolicyForThread() {
    var policy = pcallPolicyForThread_tl().get();
    if (policy != null)
      return policy;
    return defaultPCallPolicy();
  }

  static public Runnable rPcall(Runnable r) {
    return r == null ? null : () -> {
      try {
        r.run();
      } catch (Throwable __e) {
        pcallFail(__e);
      }
    };
  }

  static public <A> WeakReference<A> newWeakReference(A a) {
    return a == null ? null : new WeakReference(a);
  }

  static public boolean containsIgnoreCase(Collection<String> l, String s) {
    if (l != null)
      for (String x : l) if (eqic(x, s))
        return true;
    return false;
  }

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

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

  static public boolean containsIgnoreCase(String a, String b) {
    return indexOfIgnoreCase(a, b) >= 0;
  }

  static public boolean contains(Collection c, Object o) {
    return c != null && c.contains(o);
  }

  static public boolean contains(Iterable it, Object a) {
    if (it != null)
      for (Object o : it) if (eq(a, o))
        return true;
    return false;
  }

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

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

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

  static public boolean contains(BitSet bs, int i) {
    return bs != null && bs.get(i);
  }

  static public boolean contains(Rect r, Pt p) {
    return rectContains(r, p);
  }

  static public JWindow showAnim(File imageFile) {
    return showAnimationInTopRightCorner(loadBufferedImagePossiblyFixingGIFs(imageFile), "");
  }

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

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

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

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

  static public JWindow showAnim(BufferedImage image, String text) {
    return showAnimationInTopRightCorner(image, text);
  }

  static public JWindow showAnim(BufferedImage image, String text, double seconds) {
    return showAnimationInTopRightCorner(image, text, seconds);
  }

  static public int moveToBottomLeftCorner_inset = 20;

  static public void moveToBottomLeftCorner(Component c) {
    Window w = getWindow(c);
    if (w != null) {
      Rectangle area = maxWindowBounds();
      w.setLocation(area.x + moveToBottomLeftCorner_inset, area.y + area.height - moveToBottomLeftCorner_inset - w.getHeight());
    }
  }

  static public <A> A printHidingCredentials(A o) {
    print(hideCredentials(str(o)));
    return o;
  }

  static public void logQuotedWithDate(String s) {
    logQuotedWithTime(s);
  }

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

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

  static public File infoBoxesLogFile() {
    return new File(javaxDataDir(), "Logs/infoBoxes.txt");
  }

  static public JWindow makeWindow(final Component c) {
    return swing(new F0<JWindow>() {

      public JWindow get() {
        try {
          JWindow w = new JWindow();
          w.add(wrap(c));
          return w;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "new JWindow w;\r\n    w.add(wrap(c));\r\n    ret w;";
      }
    });
  }

  static public JPanel infoMessage_makePanel(String text) {
    final JTextArea ta = wrappedTextArea(text);
    onClick(ta, new Runnable() {

      public void run() {
        try {
          disposeWindow(ta);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "disposeWindow(ta)";
      }
    });
    int size = 14;
    if (l(text) <= 50)
      size *= 2;
    else if (l(text) < 100)
      size = iround(size * 1.5);
    ta.setFont(typeWriterFont(size));
    JScrollPane sp = jscroll(ta);
    return withMargin(sp);
  }

  static public int moveToTopRightCorner_inset = 20;

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

  static public <A extends Component> A moveToTopRightCorner(int insetX, int insetY, A a) {
    {
      swing(() -> {
        Window w = getWindow(a);
        if (w != null) {
          var bounds = preferredScreenBounds();
          w.setLocation(bounds.x2() - w.getWidth() - insetX, bounds.y1() + insetY);
        }
      });
    }
    return a;
  }

  static public boolean vmBus_noObjections(String msg, Object... args) {
    return !vmBus_anyFalse(msg, args);
  }

  static public int iround(double d) {
    return (int) Math.round(d);
  }

  static public int iround(Number n) {
    return iround(toDouble(n));
  }

  static public String exceptionToStringShort(Throwable e) {
    try {
      lastException(e);
      e = getInnerException(e);
      String msg = hideCredentials(unnull(e.getMessage()));
      if (msg.indexOf("Error") < 0 && msg.indexOf("Exception") < 0)
        return baseClassName(e) + prependIfNempty(": ", msg);
      else
        return msg;
    } catch (Throwable _e) {
      printStackTrace(_e);
      return "Error in exceptionToStringShort";
    }
  }

  static public JWindow showInTopRightCorner(Component c) {
    return swing(() -> {
      JWindow w = new JWindow();
      w.add(c);
      w.pack();
      moveToTopRightCorner(w);
      w.setVisible(true);
      return w;
    });
  }

  static public <A extends JComponent> A onClick(A c, IVF1<MouseEvent> runnable) {
    return onClick(c, (Object) runnable);
  }

  static public <A extends JComponent> A onClick(A c, Object runnable) {
    if (c != null) {
      swing(() -> {
        c.addMouseListener(new MouseAdapter() {

          public void mouseClicked(MouseEvent e) {
            callF(runnable, e);
          }
        });
      });
    }
    return c;
  }

  static public void onClick(JButton btn, Object runnable) {
    onEnter(btn, runnable);
  }

  static public boolean snippetsFromLoadedHTML_rowPrinted = false;

  static public List<Snippet> snippetsFromLoadedHTML(String html) {
    List<Snippet> l = new ArrayList();
    for (List<String> row : dropFirst(new TableFinder(html).rows())) {
      if (!snippetsFromLoadedHTML_rowPrinted) {
        print("snippetsFromLoadedHTML: " + row);
        snippetsFromLoadedHTML_rowPrinted = true;
      }
      Snippet s = new Snippet();
      s.title = dropAllTags(htmldecode(row.get(0)));
      s.id = dropAllTags(row.get(1));
      s.md5 = dropAllTags(row.get(2));
      s.type = dropAllTags(row.get(3));
      s.isPublic = isYes(row.get(6));
      l.add(s);
    }
    return l;
  }

  static public boolean isLetter(char c) {
    return Character.isLetter(c);
  }

  static public String beautifyStructure(String s) {
    List<String> tok = javaTokForStructure(s);
    structure_addTokenMarkers(tok);
    jreplace(tok, "lhm", "");
    return join(tok);
  }

  static public boolean nemptyString(String s) {
    return s != null && s.length() > 0;
  }

  static public int listL(Collection l) {
    return l == null ? 0 : l.size();
  }

  static public boolean neq(Object a, Object b) {
    return !eq(a, b);
  }

  static public <A> HashSet<A> lithashset(A... items) {
    HashSet<A> set = new HashSet();
    for (A a : items) set.add(a);
    return set;
  }

  static public boolean isQuoted(String s) {
    if (isNormalQuoted(s))
      return true;
    return isMultilineQuoted(s);
  }

  static public boolean isInteger(String s) {
    int n = l(s);
    if (n == 0)
      return false;
    int i = 0;
    if (s.charAt(0) == '-')
      if (++i >= n)
        return false;
    while (i < n) {
      char c = s.charAt(i);
      if (c < '0' || c > '9')
        return false;
      ++i;
    }
    return true;
  }

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

  static public boolean eqic(Symbol a, Symbol b) {
    return eq(a, b);
  }

  static public boolean eqic(Symbol a, String b) {
    return eqic(asString(a), b);
  }

  static public boolean eqic(char a, char b) {
    if (a == b)
      return true;
    char u1 = Character.toUpperCase(a);
    char u2 = Character.toUpperCase(b);
    if (u1 == u2)
      return true;
    return Character.toLowerCase(u1) == Character.toLowerCase(u2);
  }

  static public boolean checkTokCondition(Object condition, List<String> tok, int i) {
    if (condition instanceof TokCondition)
      return ((TokCondition) condition).get(tok, i);
    return checkCondition(condition, tok, i);
  }

  static public String unquoteSingleOrDoubleQuotes(String s) {
    if (s == null)
      return null;
    if (s.length() > 1) {
      char c = s.charAt(0);
      if (c == '\"' || c == '\'') {
        int l = endsWith(s, c) ? s.length() - 1 : s.length();
        StringBuilder sb = new StringBuilder(l - 1);
        for (int i = 1; i < l; i++) {
          char ch = s.charAt(i);
          if (ch == '\\') {
            char nextChar = (i == l - 1) ? '\\' : s.charAt(i + 1);
            if (nextChar >= '0' && nextChar <= '7') {
              String code = "" + nextChar;
              i++;
              if ((i < l - 1) && s.charAt(i + 1) >= '0' && s.charAt(i + 1) <= '7') {
                code += s.charAt(i + 1);
                i++;
                if ((i < l - 1) && s.charAt(i + 1) >= '0' && s.charAt(i + 1) <= '7') {
                  code += s.charAt(i + 1);
                  i++;
                }
              }
              sb.append((char) Integer.parseInt(code, 8));
              continue;
            }
            switch(nextChar) {
              case '\"':
                ch = '\"';
                break;
              case '\\':
                ch = '\\';
                break;
              case 'b':
                ch = '\b';
                break;
              case 'f':
                ch = '\f';
                break;
              case 'n':
                ch = '\n';
                break;
              case 'r':
                ch = '\r';
                break;
              case 't':
                ch = '\t';
                break;
              case '\'':
                ch = '\'';
                break;
              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;
            }
            i++;
          }
          sb.append(ch);
        }
        return sb.toString();
      }
    }
    return s;
  }

  static public CloseableIterableIterator<String> linesFromFile(File f) {
    return linesFromFile(f, null);
  }

  static public CloseableIterableIterator<String> linesFromFile(File f, IResourceHolder resourceHolder) {
    try {
      if (!fileExists(f))
        return emptyCloseableIterableIterator();
      if (ewic(f.getName(), ".gz"))
        return linesFromReader(utf8bufferedReader(newGZIPInputStream(f)), resourceHolder);
      return linesFromReader(utf8bufferedReader(f), resourceHolder);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public CloseableIterableIterator<String> linesFromFile(String path) {
    return linesFromFile(path, null);
  }

  static public CloseableIterableIterator<String> linesFromFile(String path, IResourceHolder resourceHolder) {
    return linesFromFile(newFile(path), resourceHolder);
  }

  static public File saveTextFile(String fileName, String contents) throws IOException {
    File file = new File(fileName);
    mkdirsForFile(file);
    String tempFileName = fileName + "_temp";
    File tempFile = new File(tempFileName);
    if (contents != null) {
      if (tempFile.exists())
        try {
          String saveName = tempFileName + ".saved." + now();
          copyFile(tempFile, new File(saveName));
        } catch (Throwable e) {
          printStackTrace(e);
        }
      FileOutputStream fileOutputStream = newFileOutputStream(tempFile.getPath());
      try {
        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, "UTF-8");
        PrintWriter printWriter = new PrintWriter(outputStreamWriter);
        printWriter.print(contents);
        printWriter.close();
      } finally {
        _close(fileOutputStream);
      }
    }
    if (file.exists() && !file.delete())
      throw new IOException("Can't delete " + fileName);
    if (contents != null)
      if (!tempFile.renameTo(file))
        throw new IOException("Can't rename " + tempFile + " to " + file);
    vmBus_send("wroteFile", file);
    return file;
  }

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

  static public File oneOfTheFiles(String... paths) {
    if (paths != null)
      for (String path : paths) if (fileExists(path))
        return newFile(path);
    return null;
  }

  static public File oneOfTheFiles(File... files) {
    return oneOfTheFiles(asList(files));
  }

  static public File oneOfTheFiles(Iterable<File> files) {
    if (files != null)
      for (File f : files) if (fileExists(f))
        return f;
    return null;
  }

  static public File javaxSecretDir_dir;

  static public File javaxSecretDir() {
    return javaxSecretDir_dir != null ? javaxSecretDir_dir : new File(userHome(), "JavaX-Secret");
  }

  static public File javaxSecretDir(String sub) {
    return newFile(javaxSecretDir(), sub);
  }

  static public File userDir() {
    return new File(userHome());
  }

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

  static public byte[] utf8(String s) {
    return toUtf8(s);
  }

  static public String makePostData(Map map) {
    StringBuilder buf = new StringBuilder();
    for (Map.Entry<Object, Object> e : castMapToMapO(map).entrySet()) {
      String key = (String) (e.getKey());
      Object val = e.getValue();
      if (val != null) {
        String value = str(val);
        if (nempty(buf))
          buf.append("&");
        buf.append(urlencode(key)).append("=").append(urlencode((value)));
      }
    }
    return str(buf);
  }

  static public String makePostData(Object... params) {
    StringBuilder buf = new StringBuilder();
    int n = l(params);
    for (int i = 0; i + 1 < n; i += 2) {
      String key = (String) (params[i]);
      Object val = params[i + 1];
      if (val != null) {
        String value = str(val);
        if (nempty(buf))
          buf.append("&");
        buf.append(urlencode(key)).append("=").append(urlencode((value)));
      }
    }
    return str(buf);
  }

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

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

  static public Object optParam(String name, Map params) {
    return mapGet(params, name);
  }

  static public <A> A optParam(Object[] opt, String name, A defaultValue) {
    int n = l(opt);
    if (n == 1 && opt[0] instanceof Map) {
      Map map = (Map) (opt[0]);
      return map.containsKey(name) ? (A) map.get(name) : defaultValue;
    }
    if (!even(l(opt)))
      throw fail("Odd parameter length");
    for (int i = 0; i < l(opt); i += 2) if (eq(opt[i], name))
      return (A) opt[i + 1];
    return defaultValue;
  }

  static public Object optParam(Object[] opt, String name) {
    return optParam(opt, name, null);
  }

  static public Object optParam(String name, Object[] params) {
    return optParam(params, name);
  }

  static public <A> A optPar(ThreadLocal<A> tl, A defaultValue) {
    A a = tl.get();
    if (a != null) {
      tl.set(null);
      return a;
    }
    return defaultValue;
  }

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

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

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

  static public Object optPar(String name, Map params) {
    return optParam(name, params);
  }

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

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

  static public void setHeaders(URLConnection con) throws IOException {
    String computerID = getComputerID_quick();
    if (computerID != null)
      try {
        con.setRequestProperty("X-ComputerID", computerID);
        con.setRequestProperty("X-OS", System.getProperty("os.name") + " " + System.getProperty("os.version"));
      } catch (Throwable e) {
      }
  }

  static public URLConnection setURLConnectionTimeouts(URLConnection con, long timeout) {
    con.setConnectTimeout(toInt(timeout));
    con.setReadTimeout(toInt(timeout));
    if (con.getConnectTimeout() != timeout || con.getReadTimeout() != timeout)
      print("Warning: Timeouts not set by JDK.");
    return con;
  }

  static public TreeSet<String> litciset(String... items) {
    TreeSet<String> set = caseInsensitiveSet();
    for (String a : items) set.add(a);
    return set;
  }

  static public TreeSet<Symbol> litciset(Symbol... items) {
    TreeSet<Symbol> set = treeSet();
    for (Symbol a : items) set.add(a);
    return set;
  }

  static public String dropSuffix(String suffix, String s) {
    return nempty(suffix) && endsWith(s, suffix) ? s.substring(0, l(s) - l(suffix)) : s;
  }

  static public String afterLastSpace(String s) {
    return s == null ? null : substring(s, s.lastIndexOf(' ') + 1);
  }

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

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

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

  static public <A> A[] dropLast(A[] a) {
    return dropLast(a, 1);
  }

  static public <A> A[] dropLast(A[] a, int n) {
    if (a == null)
      return null;
    n = Math.min(n, a.length);
    A[] b = arrayOfSameType(a, a.length - n);
    System.arraycopy(a, 0, b, 0, b.length);
    return b;
  }

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

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

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

  static public String dropLast(String s) {
    return substring(s, 0, l(s) - 1);
  }

  static public String dropLast(String s, int n) {
    return substring(s, 0, l(s) - n);
  }

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

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

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

  static public String dropSuffixIgnoreCase(String suffix, String s) {
    return ewic(s, suffix) ? s.substring(0, l(s) - l(suffix)) : s;
  }

  static public boolean ewicOneOf(String s, String... l) {
    if (s != null)
      for (String x : l) if (ewic(s, x))
        return true;
    return false;
  }

  static public Object[] toObjectArray(Collection c) {
    return toObjectArray((Iterable) c);
  }

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

  static public boolean eqOneOf(Object o, Object... l) {
    if (l != null)
      for (Object x : l) if (eq(o, x))
        return true;
    return false;
  }

  static public boolean hasMethod(Object o, String method, Object... args) {
    return findMethod_cached(o, method, args) != null;
  }

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

  static public JMenuItem jMenuItem(String text, Object r) {
    return jmenuItem(text, r);
  }

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

  static public JMenuItem disableMenuItem(final JMenuItem mi) {
    if (mi != null) {
      swing(() -> {
        mi.setEnabled(false);
      });
    }
    return mi;
  }

  static public String tok_unCurlyBracket(String s) {
    return isCurlyBraced(s) ? join(dropFirstThreeAndLastThree(javaTok(s))) : s;
  }

  static public <A extends JComponent> A bindHasChangeListenersToComponent(A component, IHasChangeListeners hcl, Runnable listener) {
    if (hcl != null)
      bindToComponent(component, () -> hcl.onChangeAndNow(listener), () -> hcl.removeChangeListener(listener));
    return component;
  }

  static public boolean isCurlyBraced(String s) {
    List<String> tok = tok_combineCurlyBrackets_keep(javaTok(s));
    return l(tok) == 3 && startsWithAndEndsWith(tok.get(1), "{", "}");
  }

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

  static public String jlabel_textAsHTML_center_ifNeeded(String text) {
    if (swic(text, "<html>") && ewic(text, "</html>"))
      return text;
    if (!containsNewLines(text))
      return text;
    return jlabel_textAsHTML_center(text);
  }

  static public Object pcallFAll_returnFirstNotNull(Collection l, Object... args) {
    if (l != null)
      for (Object f : cloneList(l)) {
        var __1 = pcallF(f, args);
        if (__1 != null)
          return __1;
      }
    return null;
  }

  static public Object pcallFAll_returnFirstNotNull(Iterator it, Object... args) {
    while (it.hasNext()) {
      var __2 = pcallF(it.next(), args);
      if (__2 != null)
        return __2;
    }
    return null;
  }

  static public String assertIsIdentifier(String s) {
    if (!isIdentifier(s))
      throw fail("Not an identifier: " + quote(s));
    return s;
  }

  static public String assertIsIdentifier(String msg, String s) {
    if (!isIdentifier(s))
      throw fail(msg + " - Not an identifier: " + quote(s));
    return s;
  }

  static public Map vm_generalMap_map;

  static public Map vm_generalMap() {
    if (vm_generalMap_map == null)
      vm_generalMap_map = (Map) get(javax(), "generalMap");
    return vm_generalMap_map;
  }

  static public _MethodCache getMethodCache(Class c) {
    return callOpt_getCache(c);
  }

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

  static public <A> Set<A> synchronizedSet(Set<A> set) {
    return Collections.synchronizedSet(set);
  }

  static public <A> Set<A> identityHashSet() {
    return Collections.newSetFromMap(new IdentityHashMap());
  }

  static public String shortClassName_dropNumberPrefix(Object o) {
    return dropNumberPrefix(shortClassName(o));
  }

  static public void removeFromParent(final Component c) {
    if (c != null) {
      swing(() -> {
        Container cc = c.getParent();
        if (cc != null) {
          cc.remove(c);
          revalidate(cc);
        }
      });
    }
  }

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

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

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

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

  static public void _handleError(Error e) {
  }

  static public ITokCondition tokCondition(IIntPred condition) {
    return condition == null ? null : (tok, nIdx) -> condition.get(nIdx);
  }

  static public Map<String, String[]> javaTokForJFind_array_cache = synchronizedMRUCache(1000);

  static public String[] javaTokForJFind_array(String s) {
    String[] tok = javaTokForJFind_array_cache.get(s);
    if (tok == null)
      javaTokForJFind_array_cache.put(s, tok = codeTokensAsStringArray(jfind_preprocess(javaTok(s))));
    return tok;
  }

  static public String[] codeTokensAsStringArray(List<String> tok) {
    int n = max(0, (l(tok) - 1) / 2);
    String[] out = new String[n];
    for (int i = 0; i < n; i++) out[i] = tok.get(i * 2 + 1);
    return out;
  }

  static public <A> List<A> replaceSublist(List<A> l, List<A> x, List<A> y) {
    if (x == null)
      return l;
    int i = 0;
    while (true) {
      i = indexOfSubList(l, x, i);
      if (i < 0)
        break;
      replaceSublist(l, i, i + l(x), y);
      i += l(y);
    }
    return l;
  }

  static public <A> List<A> replaceSublist(List<A> l, int fromIndex, int toIndex, List<A> y) {
    int n = y.size(), toIndex_new = fromIndex + n;
    if (toIndex_new < toIndex) {
      removeSubList(l, toIndex_new, toIndex);
      copyListPart(y, 0, l, fromIndex, n);
    } else {
      copyListPart(y, 0, l, fromIndex, toIndex - fromIndex);
      if (toIndex_new > toIndex)
        l.addAll(toIndex, subList(y, toIndex - fromIndex));
    }
    return l;
  }

  static public <A> List<A> replaceSublist(List<A> l, IntRange r, List<A> y) {
    return replaceSublist(l, r.start, r.end, y);
  }

  static public long parseLong(String s) {
    if (empty(s))
      return 0;
    return Long.parseLong(dropSuffix("L", s));
  }

  static public long parseLong(Object s) {
    return Long.parseLong((String) s);
  }

  static public Object dm_callModule(Object moduleOrID, String method, Object... args) {
    Object mod = dm_getModule(moduleOrID);
    if (mod == null)
      return null;
    AutoCloseable __1 = dm_enter(mod);
    try {
      return call(mod, method, args);
    } finally {
      _close(__1);
    }
  }

  static public String dm_requireModule(String moduleLibID) {
    return dm_makeModule(moduleLibID);
  }

  static public String renderVars_str(Object... params) {
    List<String> l = new ArrayList();
    int i = 0;
    if (odd(l(params))) {
      l.add(strOrNull(first(params)));
      ++i;
    }
    for (; i + 1 < l(params); i += 2) l.add(params[i] + "=" + params[i + 1]);
    return trim(joinWithComma(l));
  }

  static public boolean isInstance(Class type, Object arg) {
    return type.isInstance(arg);
  }

  static public String getOneLineFileInfoField(File f, String field) {
    File infoFile = associatedInfosFile(f);
    List<String> lines = lines(loadTextFile(infoFile));
    return firstStartingWithIC_drop(lines, field + ": ");
  }

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

  static public File localSnippetsDir(String sub) {
    return newFile(localSnippetsDir(), sub);
  }

  static public ThreadLocal<VF1<File>> checkFileNotTooBigToRead_tl = new ThreadLocal();

  static public void checkFileNotTooBigToRead(File f) {
    callF(checkFileNotTooBigToRead_tl.get(), f);
  }

  static public File newFile(File base, String... names) {
    for (String name : names) base = new File(base, name);
    return base;
  }

  static public File newFile(String name) {
    return name == null ? null : new File(name);
  }

  static public File newFile(String base, String... names) {
    return newFile(newFile(base), names);
  }

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

  static public File getProgramDir(String snippetID) {
    return programDir(snippetID);
  }

  static public <A> List<A> immutableEmptyList() {
    return Collections.emptyList();
  }

  static public byte[] emptyByteArray_a = new byte[0];

  static public byte[] emptyByteArray() {
    return emptyByteArray_a;
  }

  static public short[] emptyShortArray = new short[0];

  static public short[] emptyShortArray() {
    return emptyShortArray;
  }

  static public <A, B> Map<A, B> immutableEmptyMap() {
    return Collections.emptyMap();
  }

  static public <A> List<A> asVirtualList(A[] a) {
    return wrapArrayAsList(a);
  }

  static public int tok_findEndOfBlock(List<String> tok, int i) {
    if (tok instanceof IContentsIndexedList2)
      return tok_findEndOfBlock_IContentsIndexedList2_v2(((IContentsIndexedList2) tok), i);
    int j = i + 2, level = 1, n = l(tok);
    while (j < n) {
      String t = tok.get(j);
      if ("{".equals(t))
        ++level;
      else if ("}".equals(t))
        --level;
      if (level == 0)
        return j + 1;
      j += 2;
    }
    return n;
  }

  static public <A, B> B mapGet(Map<A, B> map, A a) {
    return map == null || a == null ? null : map.get(a);
  }

  static public <A, B> B mapGet(A a, Map<A, B> map) {
    return map == null || a == null ? null : map.get(a);
  }

  static public int getScreenWidth() {
    return getScreenSize().width;
  }

  static public int getScreenHeight() {
    return getScreenSize().height;
  }

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

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

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

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

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

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

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

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

  static public short min(short[] c) {
    short x = 0x7FFF;
    for (short d : c) if (d < x)
      x = d;
    return x;
  }

  static public int min(int[] c) {
    int x = Integer.MAX_VALUE;
    for (int d : c) if (d < x)
      x = d;
    return x;
  }

  static public <A extends Comparable<A>> A min(A a, A b) {
    return cmp(a, b) <= 0 ? a : b;
  }

  static public JFrame getFrame(final Object _o) {
    return swing(new F0<JFrame>() {

      public JFrame get() {
        try {
          Object o = _o;
          if (o instanceof ButtonGroup)
            o = first(buttonsInGroup((ButtonGroup) o));
          if (!(o instanceof Component))
            return null;
          Component c = (Component) o;
          while (c != null) {
            if (c instanceof JFrame)
              return (JFrame) c;
            c = c.getParent();
          }
          return null;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "O o = _o;\r\n    if (o instanceof ButtonGroup) o = first(buttonsInGroup((Button...";
      }
    });
  }

  static public String makeFrame_defaultIcon;

  static public boolean makeFrame_hideConsole = false;

  static public ThreadLocal<VF1<JFrame>> makeFrame_post = new ThreadLocal();

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

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

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

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

  static public JFrame makeFrame(final String title, final Object content, final boolean showIt) {
    final VF1<JFrame> post = optParam(makeFrame_post);
    return swing(new F0<JFrame>() {

      public JFrame get() {
        try {
          if (getFrame(content) != null)
            return getFrame(setFrameTitle((Component) content, title));
          final JFrame frame = new JFrame(title);
          if (makeFrame_defaultIcon != null)
            setFrameIconLater(frame, makeFrame_defaultIcon);
          _initFrame(frame);
          Component wrapped = wrap(content);
          if (wrapped != null)
            frame.getContentPane().add(wrapped);
          frame.setBounds(defaultNewFrameBounds());
          callF(post, frame);
          if (showIt)
            frame.setVisible(true);
          if (showIt && makeFrame_hideConsole) {
            hideConsole();
            makeFrame_hideConsole = false;
          }
          return frame;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "if (getFrame(content) != null)\r\n      ret getFrame(setFrameTitle((Component) ...";
      }
    });
  }

  static public boolean frameTooSmall(JFrame frame) {
    return frame.getWidth() < 100 || frame.getHeight() < 50;
  }

  static public void frameStandardSize(JFrame frame) {
    frame.setBounds(300, 100, 500, 400);
  }

  static public void setFrameContents(final Component c, final Object contents) {
    swing(() -> {
      JFrame frame = getFrame(c);
      if (frame == null)
        return;
      frame.getContentPane().removeAll();
      frame.getContentPane().setLayout(new BorderLayout());
      frame.getContentPane().add(wrap(contents));
      revalidate(frame);
    });
  }

  static public List<AbstractButton> buttonsInGroup(ButtonGroup g) {
    if (g == null)
      return ll();
    return asList(g.getElements());
  }

  static public Map<String, Class> classForName_cache = synchroHashMap();

  static public Class classForName(String name) {
    return classForName(name, null);
  }

  static public Class classForName(String name, Object classFinder) {
    if (classForName_cache == null || classFinder != null)
      return classForName_uncached(name, classFinder);
    Class c = classForName_cache.get(name);
    if (c == null)
      classForName_cache.put(name, c = classForName_uncached(name, null));
    return c;
  }

  static public Class classForName_uncached(String name, Object classFinder) {
    try {
      if (classFinder != null)
        return (Class) callF(classFinder, name);
      return Class.forName(name);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public Map<Class, Constructor> nuObjectWithoutArguments_cache = newDangerousWeakHashMap();

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

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

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

  static public Field makeAccessible(Field f) {
    try {
      f.setAccessible(true);
    } catch (Throwable e) {
      vmBus_send("makeAccessible_error", e, f);
    }
    return f;
  }

  static public Method makeAccessible(Method m) {
    try {
      m.setAccessible(true);
    } catch (Throwable e) {
      vmBus_send("makeAccessible_error", e, m);
    }
    return m;
  }

  static public Constructor makeAccessible(Constructor c) {
    try {
      c.setAccessible(true);
    } catch (Throwable e) {
      vmBus_send("makeAccessible_error", e, c);
    }
    return c;
  }

  static public Map<Class, Constructor[]> getDeclaredConstructors_cached_cache = newDangerousWeakHashMap();

  static public Constructor[] getDeclaredConstructors_cached(Class c) {
    Constructor[] ctors;
    synchronized (getDeclaredConstructors_cached_cache) {
      ctors = getDeclaredConstructors_cached_cache.get(c);
      if (ctors == null) {
        getDeclaredConstructors_cached_cache.put(c, ctors = c.getDeclaredConstructors());
        for (var ctor : ctors) makeAccessible(ctor);
      }
    }
    return ctors;
  }

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

  static public 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 public <A> List<A> antiFilter(Iterable<A> c, Object pred) {
    if (pred instanceof F1)
      return antiFilter(c, (F1<A, Boolean>) pred);
    List x = new ArrayList();
    if (c != null)
      for (Object o : c) if (!isTrue(callF(pred, o)))
        x.add(o);
    return x;
  }

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

  static public List antiFilter(Object pred, Object[] c) {
    return antiFilter(pred, wrapArrayAsList(c));
  }

  static public <A, B extends A> List<B> antiFilter(Iterable<B> c, F1<A, Boolean> pred) {
    List x = new ArrayList();
    if (c != null)
      for (B o : c) if (!pred.get(o).booleanValue())
        x.add(o);
    return x;
  }

  static public <A, B extends A> List<B> antiFilter(F1<A, Boolean> pred, Iterable<B> c) {
    return antiFilter(c, pred);
  }

  static public <A, B extends A> List<B> antiFilter(Iterable<B> c, IF1<A, Boolean> pred) {
    List x = new ArrayList();
    if (c != null)
      for (B o : c) if (!pred.get(o).booleanValue())
        x.add(o);
    return x;
  }

  static public <A, B extends A> List<B> antiFilter(IF1<A, Boolean> pred, Iterable<B> c) {
    return antiFilter(c, pred);
  }

  static public Object[] asObjectArray(Collection l) {
    return toObjectArray(l);
  }

  static public void addToContainer(Container a, Component... b) {
    if (a == null)
      return;
    {
      swing(() -> {
        for (Component c : unnullForIteration(b)) if (c != null)
          a.add(c);
      });
    }
  }

  static public Component wrapForSmartAdd(Object o) {
    if (o == null)
      return jpanel();
    if (o instanceof String)
      return jlabel((String) o);
    return wrap(o);
  }

  static public RootPaneContainer getPossiblyInternalFrame(Component c) {
    JInternalFrame f = getInternalFrame(c);
    if (f != null)
      return f;
    return optCast(RootPaneContainer.class, getWindow(c));
  }

  static public void disposeInternalFrame(Component c) {
    final JInternalFrame f = getInternalFrame(c);
    if (f != null) {
      swing(() -> {
        vmBus_send("disposingInternalFrame", f);
        f.dispose();
      });
    }
  }

  static public boolean domainIsUnder(String domain, String mainDomain) {
    return eqic(domain, mainDomain) || ewic(domain, "." + mainDomain);
  }

  static public String theAGIBlueDomain() {
    return "agi.blue";
  }

  static public void addMenuItem(JPopupMenu menu, String text, Object action) {
    menu.add(jmenuItem(text, action));
  }

  static public void addMenuItem(JPopupMenu menu, JMenuItem menuItem) {
    if (menu != null && menuItem != null)
      menu.add(menuItem);
  }

  static public void addMenuItem(JMenu menu, String text, Object action) {
    menu.add(jmenuItem(text, action));
  }

  static public void addMenuItem(Menu menu, String text, Object action) {
    menu.add(menuItem(text, action));
  }

  static public void addMenuItem(JMenu menu, JMenuItem menuItem) {
    menu.add(menuItem);
  }

  static public void addMenuItem(JMenuBar menuBar, String text, Runnable action) {
    addMenuItem(menuBar, jmenuItem(text, action));
  }

  static public void addMenuItem(JMenuBar menuBar, JMenuItem menuItem) {
    addDirectMenuItem(menuBar, menuItem);
  }

  static public Object vm_generalMap_put(Object key, Object value) {
    return mapPutOrRemove(vm_generalMap(), key, value);
  }

  static public <A> Set<A> newWeakHashSet() {
    return synchroWeakHashSet();
  }

  static public void metaMapPut(IMeta o, Object key, Object value) {
    {
      if (o != null)
        o.metaPut(key, value);
    }
  }

  static public void metaMapPut(Object o, Object key, Object value) {
    var meta = initIMeta(o);
    {
      if (meta != null)
        meta.metaPut(key, value);
    }
  }

  static public <A> Set<A> syncLinkedHashSet() {
    return synchroLinkedHashSet();
  }

  static public Class getMainClass() {
    return mc();
  }

  static public Class getMainClass(Object o) {
    try {
      if (o == null)
        return null;
      if (o instanceof Class && eq(((Class) o).getName(), "x30"))
        return (Class) o;
      ClassLoader cl = (o instanceof Class ? (Class) o : o.getClass()).getClassLoader();
      if (cl == null)
        return null;
      String name = mainClassNameForClassLoader(cl);
      return loadClassFromClassLoader_orNull(cl, name);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public x30_pkg.x30_util.BetterThreadLocal<Runnable> newPing_actionTL;

  static public x30_pkg.x30_util.BetterThreadLocal<Runnable> newPing_actionTL() {
    if (newPing_actionTL == null)
      newPing_actionTL = vm_generalMap_getOrCreate("newPing_actionTL", () -> {
        Runnable value = (Runnable) (callF_gen(vm_generalMap_get("newPing_valueForNewThread")));
        var tl = new x30_pkg.x30_util.BetterThreadLocal<Runnable>();
        tl.set(value);
        return tl;
      });
    return newPing_actionTL;
  }

  static volatile public boolean licensed_yes = true;

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

  static public void licensed_off() {
    licensed_yes = false;
  }

  static public Throwable _storeException_value;

  static public void _storeException(Throwable e) {
    _storeException_value = e;
  }

  static public Random defaultRandomGenerator() {
    {
      Random r = customRandomizerForThisThread();
      if (r != null)
        return r;
    }
    return ThreadLocalRandom.current();
  }

  static public JTextField consoleInputField() {
    Object console = get(getJavaX(), "console");
    return (JTextField) getOpt(console, "tfInput");
  }

  static public JTextField setTextAndSelectAll(final JTextField tf, final String text) {
    if (tf != null) {
      swing(() -> {
        tf.setText(text);
        tf.selectAll();
      });
    }
    return tf;
  }

  static public void focusConsole(String s) {
    setConsoleInput(s);
    focusConsole();
  }

  static public void focusConsole() {
    JComponent tf = consoleInputFieldOrComboBox();
    if (tf != null) {
      tf.requestFocus();
    }
  }

  static public String formatSnippetIDOpt(String s) {
    return isSnippetID(s) ? formatSnippetID(s) : s;
  }

  static public void removeFromConsole2(Component c) {
    JFrame frame = getFrame(c);
    if (frame == null)
      return;
    Container cp = frame.getContentPane();
    cp = (Container) getCenterComponent(cp);
    if (cp != c.getParent()) {
      print("removeFromWindow fail");
      return;
    }
    cp.remove(c);
    Container mainC = (Container) cp.getComponents()[0];
    cp.remove(mainC);
    replaceCenterComponent(frame.getContentPane(), mainC);
    validateFrame(frame);
  }

  static public Container consoleMainContainer_value;

  static public Container consoleMainContainer() {
    Container c = (Container) (callOpt(creator(), "consoleMainContainer"));
    if (c != null)
      return c;
    if (consoleMainContainer_value != null)
      return consoleMainContainer_value;
    JFrame frame = consoleFrame();
    if (frame == null)
      return null;
    return consoleMainContainer_value = frame.getContentPane();
  }

  static public Component getCenterComponent(Container container) {
    return ((BorderLayout) container.getLayout()).getLayoutComponent(BorderLayout.CENTER);
  }

  static public void replaceCenterComponent(Container container, Component c) {
    Component old = getCenterComponent(container);
    if (old != null)
      container.remove(old);
    container.add(c, BorderLayout.CENTER);
  }

  static public void validateFrame(Component c) {
    revalidateFrame(c);
  }

  static public JPanel jFullCenter(final Component c) {
    return swing(new F0<JPanel>() {

      public JPanel get() {
        try {
          JPanel panel = new JPanel(new GridBagLayout());
          panel.add(c);
          return panel;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "JPanel panel = new JPanel(new GridBagLayout);\r\n    panel.add(c);\r\n    ret panel;";
      }
    });
  }

  static public int hstackWithSpacing_spacing = 10;

  static public JPanel hstackWithSpacing(Object... parts) {
    parts = flattenArray2(parts);
    int spacing = hstackWithSpacing_spacing;
    int i = 0;
    if (first(parts) instanceof Integer) {
      spacing = toInt(first(parts));
      ++i;
    }
    JPanel panel = new JPanel(new GridBagLayout());
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.weighty = 1;
    gbc.fill = GridBagConstraints.VERTICAL;
    gbc.gridheight = GridBagConstraints.REMAINDER;
    for (; i < l(parts); i++) {
      if (i != 0)
        panel.add(javax.swing.Box.createRigidArea(new Dimension(spacing, 0)), gbc);
      panel.add(wrapForSmartAdd(parts[i]), gbc);
    }
    gbc.weightx = 1;
    panel.add(jrigid(), gbc);
    return panel;
  }

  static public boolean findFunctionDefinitions_debug = false;

  static public List<String> findFunctionDefinitions(String src) {
    Pattern pattern = Pattern.compile("(?:static|svoid|ssynchronized|sbool|^sS|^sO|^sL)[^={]*\\s+([\\w$]+)\\s*\\(");
    List<String> functions = new ArrayList<String>();
    for (String line : toLines(src)) {
      line = jreplace(line, "svoid <id> {", "svoid $2() {");
      Matcher matcher = pattern.matcher(line);
      if (matcher.find()) {
        String f = matcher.group(1);
        functions.add(f);
        if (findFunctionDefinitions_debug)
          System.out.println("Function found: " + f + " in line: " + line);
      }
    }
    return functions;
  }

  static public Map<String, String> tok_findStandardFunctionDefinitions(List<String> tok) {
    Map<String, String> map = new HashMap();
    tok_directSnippetRefs(tok);
    for (int i : jfindAll(tok, "function <id> is in *.")) map.put(tok.get(i + 2), fsI(unquote(tok.get(i + 8))));
    return map;
  }

  static public String appendWithNewLine(String a, String b) {
    if (empty(b))
      return a;
    if (empty(a))
      return b;
    return addSuffix(a, "\n") + b;
  }

  static public Map<String, String> stdFunctions_uncached() {
    return stdFunctions_uncached(new HashMap());
  }

  static public Map<String, String> stdFunctions_uncached(Map<String, String> map) {
    for (var snippetID : stdFunctionListSnippetIDs()) parseStdFunctionsList(loadSnippet(snippetID), map);
    return map;
  }

  static public List<String> tok_parseArgsList(String s) {
    return tok_parseArgsList(javaTok(s));
  }

  static public List<String> tok_parseArgsList(List<String> tok) {
    return tok_parseArgsList(tok, getBracketMap(tok));
  }

  static public List<String> tok_parseArgsList(List<String> tok, Map<Integer, Integer> bracketMap) {
    int i = indexOfAny(tok, 0, "(", "{");
    if (i < 0)
      return null;
    if (eq(get(tok, i), "{"))
      return ll();
    int argStart = (i += 2);
    List<String> args = new ArrayList();
    while (i < l(tok) - 2 && neq(get(tok, i), ")")) {
      Integer j = bracketMap.get(i);
      if (j != null) {
        i = j + 2;
        continue;
      }
      if (eqGetOneOf(tok, i, ",")) {
        if (i > argStart)
          args.add(trimJoinSubList(tok, argStart, i));
        argStart = i + 2;
      }
      i += 2;
    }
    if (i > argStart)
      args.add(trimJoinSubList(tok, argStart, i));
    return args;
  }

  static public HashSet<String> getBracketMapIncludingAngleBrackets_opening = lithashset("(", "{", "<");

  static public HashSet<String> getBracketMapIncludingAngleBrackets_closing = lithashset(")", "}", ">");

  static public Map<Integer, Integer> getBracketMapIncludingAngleBrackets(List tok) {
    return getBracketMap(tok, getBracketMapIncludingAngleBrackets_opening, getBracketMapIncludingAngleBrackets_closing);
  }

  static public Map<Integer, Integer> getBracketMapIncludingAngleBrackets(List tok, int from, int to) {
    return getBracketMap(tok, getBracketMapIncludingAngleBrackets_opening, getBracketMapIncludingAngleBrackets_closing, from, to);
  }

  static public String jreplaceExpandRefs(String s, List<String> tokref) {
    if (!contains(s, '$'))
      return s;
    List<String> tok = javaTok(s);
    for (int i = 1; i < l(tok); i += 2) {
      String t = tok.get(i);
      if (t.startsWith("$") && isInteger(t.substring(1))) {
        String x = tokref.get(-1 + parseInt(t.substring(1)) * 2);
        tok.set(i, x);
      } else if (t.equals("\\")) {
        tok.set(i, "");
        i += 2;
      }
    }
    return join(tok);
  }

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

  static public void clearAllTokens(List<String> tok, int i, int j) {
    for (; i < j; i++) tok.set(i, "");
  }

  static public List<String> reTok(List<String> tok) {
    replaceCollection(tok, javaTok(tok));
    return tok;
  }

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

  static public List<String> reTok(List<String> tok, int i, int j) {
    i = max(i & ~1, 0);
    j = min(l(tok), j | 1);
    if (i >= j)
      return tok;
    List<String> t = javaTok(joinSubList(tok, i, j));
    replaceListPart(tok, i, j, t);
    return tok;
  }

  static public List<String> reTok(List<String> tok, IntRange r) {
    if (r != null)
      reTok(tok, r.start, r.end);
    return tok;
  }

  static public PingSource pingSource() {
    return pingSource_tl().get();
  }

  static public PingSource pingSource(Thread thread) {
    return pingSource_tl().get(thread);
  }

  static public <A, B> List<B> lambdaMap(IF1<A, B> f, Iterable<A> l) {
    return map(l, f);
  }

  static public <A, B> List<B> lambdaMap(IF1<A, B> f, A[] l) {
    return map(l, f);
  }

  static public <A> List<A> takeFirst(List<A> l, int n) {
    return l(l) <= n ? l : newSubListOrSame(l, 0, n);
  }

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

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

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

  static public CharSequence takeFirst(int n, CharSequence s) {
    return subCharSequence(s, 0, n);
  }

  static public <A> List<A> takeFirst(int n, Iterator<A> it) {
    if (it == null)
      return null;
    List l = new ArrayList();
    for (int _repeat_0 = 0; _repeat_0 < n; _repeat_0++) {
      if (it.hasNext())
        l.add(it.next());
      else
        break;
    }
    return l;
  }

  static public <A> List<A> takeFirst(int n, Iterable<A> i) {
    if (i == null)
      return null;
    return i == null ? null : takeFirst(n, i.iterator());
  }

  static public <A> List<A> takeFirst(int n, IterableIterator<A> i) {
    return takeFirst(n, (Iterator<A>) i);
  }

  static public int[] takeFirst(int n, int[] a) {
    return takeFirstOfIntArray(n, a);
  }

  static public short[] takeFirst(int n, short[] a) {
    return takeFirstOfShortArray(n, a);
  }

  static public byte[] takeFirst(int n, byte[] a) {
    return takeFirstOfByteArray(n, a);
  }

  static public byte[] takeFirst(byte[] a, int n) {
    return takeFirstOfByteArray(n, a);
  }

  static public double[] takeFirst(int n, double[] a) {
    return takeFirstOfDoubleArray(n, a);
  }

  static public double[] takeFirst(double[] a, int n) {
    return takeFirstOfDoubleArray(n, a);
  }

  static public int smartLastIndexOf(String s, char c) {
    if (s == null)
      return 0;
    int i = s.lastIndexOf(c);
    return i >= 0 ? i : l(s);
  }

  static public <A> int smartLastIndexOf(List<A> l, A sub) {
    int i = lastIndexOf(l, sub);
    return i < 0 ? l(l) : i;
  }

  static public String lastIdentifier(List<String> l) {
    for (int i = l(l) - 1; i >= 0; i--) {
      String t = l.get(i);
      if (isIdentifier(t))
        return t;
    }
    return null;
  }

  public static String rtrim(String s) {
    if (s == null)
      return null;
    int i = s.length();
    while (i > 0 && " \t\r\n".indexOf(s.charAt(i - 1)) >= 0) --i;
    return i < s.length() ? s.substring(0, i) : s;
  }

  static public String indentx(Object s) {
    return indentx(strOrEmpty(s));
  }

  static public String indentx(String s) {
    return indentx(indent_default, s);
  }

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

  static public String indentx(String indent, String s) {
    return dropSuffix(indent, indent(indent, s));
  }

  static public String parseSnippetType_defs1 = "\r\ndefine('SN_DECLS', 1);\r\ndefine('SN_TESTCASE', 2);\r\ndefine('SN_COMMENT', 3);\r\ndefine('SN_RUNREPORT', 4); # report after running a test case\r\ndefine('SN_SOURCE', 5);  # uploaded source file (Java or other)\r\ndefine('SN_SOLUTION', 6);  # solution tree\r\ndefine('SN_LUA', 7);  # Lua code (solutions have this type too)\r\ndefine('SN_LUA_CHATBOT', 8);  # A Lua chat-bot\r\ndefine('SN_LUA_TESTCASE', 9); # A test case in Lua\r\n#define('SN_LUA_SOLUTION', 10); # A text-to-text solution in Lua (now integrated as plain SN_LUA)\r\ndefine('SN_OBJECT', 11); # An object\r\ndefine('SN_LUA_IMAGE', 12);\r\ndefine('SN_LUA_ANIMATION', 13); # Image plus (optional) animation\r\ndefine('SN_LUA_GUI', 14); # Animation plus keyboard+mouse events\r\ndefine('SN_COMMENT', 15);  # A comment on another snippet\r\ndefine('SN_INOUTEXAMPLE', 16); # A conversion example with input+output\r\ndefine('SN_LUA_SYSTEMTEST', 17); # A free-standing test case (not requiring a solution snippet)\r\ndefine('SN_LUA_SERVICEBOT', 18); # A bot in the group chat\r\ndefine('SN_LUA_SUGGESTER', 19); # A suggester for editing snippets\r\ndefine('SN_RUNLOG', 20);\r\ndefine('SN_JAVA', 21);  # Java source code\r\ndefine('SN_PSEUDOCODE', 22);\r\ndefine('SN_IMAGE', 23); # An image stored as a blob\r\ndefine('SN_T2G_GUICODE', 24); # Janino code for Text2GUI\r\ndefine('SN_JAVA_IR', 25);  # Java image recognition script\r\ndefine('SN_LUA_IR', 26);  # Lua image recognition script\r\ndefine('SN_LUA_COMMENTER', 27);  # Lua snippet commenter script\r\ndefine('SN_LUA_VISUALIZER', 28);  # Lua visualizer script\r\ndefine('SN_LUA_PRODUCER', 29);\r\ndefine('SN_LUA_IMAGETRANSFORMER', 30); # Lua image transformer\r\ndefine('SN_LUA_ID_LEARNER', 31); # Image distinction (learner)\r\ndefine('SN_LUA_ID_EXECUTOR', 32); # Image distinction (executor)\r\ndefine('SN_LUA_LIVE', 33); # Lua Live\r\ndefine('SN_LUA_SNIPPET_TO_SNIPPET', 33);\r\ndefine('SN_JAVAX', 34);  # JavaX source code\r\ndefine('SN_HTML', 35);  # HTML source code\r\n#define('SN_DATA_ZIP', 36); # Data (.zip)\r\ndefine('SN_DATA', 37); # Data (any type)\r\ndefine('SN_JAVAX_TRANSLATOR', 38);  # JavaX translator\r\ndefine('SN_JAVAX_INPUT_TXT_OUTPUT_TXT', 39);  # Certain type of JavaX program\r\ndefine('SN_JAVAX_ANDROID', 40);\r\ndefine('SN_IOIOI', 41);\r\ndefine('SN_JAVAX_INC', 42);\r\ndefine('SN_JAVAX_INCOMPLETE', 43);\r\ndefine('SN_JAVAX_SNIPPETCOMMENTER', 44);\r\ndefine('SN_QUESTION', 45);\r\ndefine('SN_INFORMATION', 46);\r\ndefine('SN_JAVAX_TEST', 47);\r\ndefine('SN_NL', 48);\r\ndefine('SN_BLOGPOST', 49);\r\ndefine('SN_MICROTHEORY', 50);\r\ndefine('SN_SNL', 51);\r\ndefine('SN_USER_SUPPLIED_DIALOG', 52);\r\ndefine('SN_AI_CONCEPTS', 53);\r\ndefine('SN_JAVAX_MODULE', 54);\r\ndefine('SN_JAVAX_DESKTOP', 55);\r\ndefine('SN_AI_DRAWING', 56);\r\n# insert next here\r\n\r\ndefine('SN_NT_SNIPPET', 80); # New Tinybrain snippet\r\ndefine('SN_SPACE', 81); # a space for snippets\r\ndefine('SN_DOCUMENT', 100);  # just a human-readable text\r\ndefine('SN_DOCUMENT_TASK', 101);  # human-readable text - task description\r\ndefine('SN_DIRECTORY', 102); # A directory of snippets\r\ndefine('SN_SNIPPET_TYPE', 103);\r\ndefine('SN_IR_TASK', 104);\r\n";

  static public String parseSnippetType_defs2 = "\r\n  SN_NT_SNIPPET => 'New Tinybrain snippet',\r\n  SN_MICROTHEORY => 'Microtheory',\r\n  SN_DOCUMENT => 'Document',\r\n  SN_USER_SUPPLIED_DIALOG => 'User-supplied dialog',\r\n  SN_JAVAX => 'JavaX source code',\r\n  SN_JAVAX_INC => 'JavaX fragment (include)',\r\n  SN_JAVAX_DESKTOP => 'JavaX source code (desktop)',\r\n  SN_JAVAX_INCOMPLETE => 'JavaX (incomplete)',\r\n  SN_JAVAX_TRANSLATOR => 'JavaX translator',\r\n  SN_JAVAX_ANDROID => 'JavaX source code (Android)',\r\n  SN_JAVAX_MODULE => 'JavaX module',\r\n  SN_JAVAX_TEST => 'JavaX General Test Case',\r\n  SN_JAVAX_INPUT_TXT_OUTPUT_TXT => 'JavaX (input.txt to output.txt)',\r\n  SN_JAVAX_SNIPPETCOMMENTER => 'JavaX (snippet commenter)',\r\n  SN_IOIOI => 'IOIOI',\r\n  SN_QUESTION => 'Question',\r\n  SN_NL => 'Natural language',\r\n  SN_SPACE => 'Space for snippets',\r\n  SN_DOCUMENT_TASK => 'Task description',\r\n  SN_SNL => 'Simplified Natural Language',\r\n  SN_LUA => 'Lua code',\r\n  SN_LUA_IR => 'Lua code - Image recognition',\r\n  SN_LUA_IMAGE => 'Lua code - Image',\r\n  SN_LUA_VISUALIZER => 'Lua code - Visualizer',\r\n  SN_LUA_IMAGETRANSFORMER => 'Lua code - Image transformer',\r\n  SN_LUA_CHATBOT => 'Lua code - Chat-bot',\r\n  SN_LUA_TESTCASE => 'Lua code - Test case',\r\n  SN_LUA_ANIMATION => 'Lua code - Animation',\r\n  SN_LUA_GUI => 'Lua code - GUI',\r\n  SN_LUA_SYSTEMTEST => 'Lua code - System test',\r\n  SN_LUA_SERVICEBOT => 'Lua code - Service bot',\r\n  SN_LUA_SUGGESTER => 'Lua code - Suggester',\r\n  SN_LUA_COMMENTER => 'Lua code - Snippet commenter',\r\n  SN_LUA_PRODUCER => 'Lua code - Snippet producer',\r\n  SN_LUA_ID_LEARNER => 'Lua code - Image distinction (learner)',\r\n  SN_LUA_ID_EXECUTOR => 'Lua code - Image distinction (executor)',\r\n  SN_LUA_LIVE => 'Lua Live - Lua code with side effects',\r\n  SN_LUA_SNIPPET_TO_SNIPPET => 'Lua code - Snippet-to-snippet',\r\n  SN_T2G_GUICODE => 'Java GUI source (Text2GUI/Janino)',\r\n  SN_JAVA => 'Java source code',\r\n  SN_JAVA_IR => 'Java image recognition code',\r\n  SN_PSEUDOCODE => 'Pseudo code',\r\n  SN_HTML => 'HTML',\r\n  SN_IMAGE => 'Image',\r\n  SN_RUNLOG => 'Run Log',\r\n  SN_INFORMATION => 'Information',\r\n# SN_DATA_ZIP => 'Data (.zip)',\r\n  SN_DATA => 'Data',\r\n  SN_DECLS => 'TB declarations',\r\n  SN_TESTCASE => 'TB test case',\r\n  SN_COMMENT => 'Comment',\r\n  SN_RUNREPORT => 'Run report',\r\n  SN_SOURCE => 'Source file',\r\n  SN_SOLUTION => 'TB solution tree',\r\n  SN_COMMENT => 'Comment',\r\n  SN_INOUTEXAMPLE => 'Input/output example',\r\n  SN_OBJECT => 'Object',\r\n  SN_DIRECTORY => 'Directory',\r\n  SN_SNIPPET_TYPE => 'Snippet type',\r\n  SN_IR_TASK => 'Image recognition task',\r\n  SN_BLOGPOST => 'Blog post',\r\n  SN_AI_CONCEPTS => 'AI Concepts',\r\n  SN_AI_DRAWING => 'AI Drawing'\r\n";

  static public int parseSnippetType(String type) {
    if (eqic(type, "JavaX source code (Desktop)"))
      return 55;
    throw todo();
  }

  static public List<String> javaTokSnippet(String snippetID) {
    return javaTok(loadSnippet(snippetID));
  }

  static public String getClassDeclarationName(List<String> tok) {
    if (tok != null)
      for (int i = 1; i + 2 < tok.size(); i += 2) if (allClasses_keywords.contains(tok.get(i)) && isIdentifier(tok.get(i + 2))) {
        while (contains(getClassDeclarationName_skippables(), get(tok, i + 2))) i += 2;
        return tok.get(i + 2);
      }
    return null;
  }

  static public HashSet<String> allClasses_keywords = lithashset("class", "interface", "enum", "sclass", "sinterface", "record", "srecord", "strecord", "asclass", "concept");

  static public List<List<String>> allClasses(List<String> tok) {
    List<List<String>> l = new ArrayList();
    int n = tok.size();
    HashSet<String> _allClasses_keywords = allClasses_keywords;
    for (int i = 1; i < n; i += 2) {
      String t = tok.get(i);
      if ("{".equals(t))
        i = findEndOfBlock(tok, i) - 1;
      else if (_allClasses_keywords.contains(t) && (tok_isJavaxMetaCommandLeftOf(tok, i) || !(eqGetOneOf(tok, i - 2, ".", "include") && !containsNewLine(tok.get(i - 1))))) {
        int j = i;
        while (j < n && !tok.get(j).equals("{")) j += 2;
        j = findEndOfBlock(tok, j) + 1;
        i = leftScanModifiers(tok, i);
        l.add(subList(tok, i - 1, Math.min(n, j)));
        i = j - 2;
      }
    }
    return l;
  }

  static public List<List<String>> allClasses(String text) {
    return allClasses(javaTok(text));
  }

  static public <A, B extends A> void addAll(Collection<A> c, Iterable<B> b) {
    if (c != null && b != null)
      for (A a : b) c.add(a);
  }

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

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

  static public <A, B> Map<A, B> addAll(Map<A, B> a, Map<? extends A, ? extends B> b) {
    if (a != null && b != null)
      a.putAll(b);
    return a;
  }

  static public <A extends Container> A addAll(A c, Collection<? extends Component> components) {
    return addComponents(c, components);
  }

  static public <A extends Container> A addAll(A c, Component... components) {
    return addComponents(c, components);
  }

  static public class tok_findRewrites_Found {

    public List<String> tok;

    public String token;

    public int cIdx, repStart, repEnd;

    public String replacement() {
      return joinSubList(tok, repStart, repEnd - 1);
    }

    public int startCIdx() {
      return cIdx;
    }

    public int endNIdx() {
      return repEnd + 1;
    }
  }

  static public Map<String, String> tok_findRewrites(List<String> tok) {
    Map<String, String> rewrites = orderedMap();
    tok_findRewrites(tok, rewrites, null);
    return rewrites;
  }

  static public void tok_findRewrites(List<String> tok, IVF1<tok_findRewrites_Found> callback) {
    tok_findRewrites(tok, null, callback);
  }

  static public void tok_findRewrites(List<String> tok, Map<String, String> rewrites, IVF1<tok_findRewrites_Found> callback) {
    for (int i : jfindAll(tok, "rewrite <id>", (_tok, nIdx) -> eqGetOneOf(_tok, nIdx + 5, "with", "=", "to"))) {
      tok_findRewrites_Found f = new tok_findRewrites_Found();
      f.tok = tok;
      f.cIdx = i;
      f.token = tok.get(i + 2);
      f.repStart = i + 6;
      f.repEnd = smartIndexOf(tok, f.repStart, ".");
      callF(callback, f);
      {
        if (rewrites != null)
          rewrites.put(f.token, f.replacement());
      }
    }
  }

  static public Map<String, String> standardClassesMap_uncached() {
    Map<String, String> map = new HashMap();
    for (String snippetID : standardClassesSnippetIDs()) for (String line : tlft_j(loadSnippet(snippetID))) {
      int idx = line.indexOf('/');
      map.put(takeFirst(idx, line), substring(line, idx + 1));
    }
    return map;
  }

  static public String addToStdClassesList(String list, String cname, String snippetID) {
    return cname + "/" + snippetID + "\n" + list;
  }

  static public String n2(long l) {
    return formatWithThousands(l);
  }

  static public String n2(AtomicLong l) {
    return n2(l.get());
  }

  static public String n2(Collection l) {
    return n2(l(l));
  }

  static public String n2(Map map) {
    return n2(l(map));
  }

  static public String n2_getPlural(String singular) {
    return plural(singular);
  }

  static public String n2(double l, String singular) {
    return empty(singular) ? str(l) : n2(l, singular, n2_getPlural(singular));
  }

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

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

  static public String n2(long l, String singular) {
    return empty(singular) ? n2(l) : n_fancy2(l, singular, n2_getPlural(singular));
  }

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

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

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

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

  static public String n2(long[] a, String singular) {
    return n2(l(a), singular);
  }

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

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

  static public String n2(MultiSet ms, String singular) {
    return n2(ms, singular, n2_getPlural(singular));
  }

  static public String n2(MultiSet ms, String singular, String plural) {
    return n_fancy2(ms, singular, plural);
  }

  static public String n2(IMultiMap mm, String singular) {
    return n2(mm, singular, n2_getPlural(singular));
  }

  static public String n2(IMultiMap mm, String singular, String plural) {
    return n_fancy2(l(mm), singular, plural);
  }

  static public String tok_methodName(List<String> tok) {
    return tok_functionName(tok);
  }

  static public boolean tok_staticFunctionAlwaysReturnsVoid(List<String> tok, String name) {
    Set<String> types = tok_returnTypesOfStaticFunction_uncleaned(tok, name);
    if (empty(types))
      return false;
    for (String type : types) if (!containsOneOf(javaTokC(type), javaxVoidAliases()))
      return false;
    return true;
  }

  static public IntRange tok_findArgs(List<String> tok) {
    return tok_findArgs(tok, getBracketMap(tok));
  }

  static public IntRange tok_findArgs(List<String> tok, Map<Integer, Integer> bracketMap) {
    return tok_findArgs(tok, 0, bracketMap);
  }

  static public IntRange tok_findArgs(List<String> tok, int i, Map<Integer, Integer> bracketMap) {
    i = indexOfAny(tok, i, "(", "{");
    if (i < 0)
      return null;
    if (eq(get(tok, i), "{"))
      return null;
    int start = (i += 2);
    while (i < l(tok) - 2 && neq(get(tok, i), ")")) {
      Integer j = bracketMap.get(i);
      if (j != null) {
        i = j + 2;
        continue;
      }
      i += 2;
    }
    return intRange(start - 1, i);
  }

  static public ThreadLocal<Boolean> tok_typesAndNamesOfParams_keepModifiers = new ThreadLocal();

  static public List<Pair<String, String>> tok_typesAndNamesOfParams(List<String> tok, Object... __) {
    boolean keepModifiers = boolPar(tok_typesAndNamesOfParams_keepModifiers);
    boolean typelessMeansObject = boolPar("typelessMeansObject", __);
    try {
      List<Pair<String, String>> out = new ArrayList();
      for (int i = 1; i < l(tok); ) {
        i = tok_skipAnnotations(tok, i);
        String t = get(tok, i);
        String pre = "";
        if (typelessMeansObject && isIdentifier(t) && eqGetOneOf(tok, i + 2, ",", null)) {
          i += 4;
          {
            out.add(pair("Object", t));
            continue;
          }
        }
        if (eqOneOf(t, "final", "transient")) {
          if (keepModifiers)
            pre += t + " ";
          t = get(tok, i += 2);
        }
        if (eq(t, "virtual")) {
          pre += "virtual ";
          t = get(tok, i += 2);
        }
        if (eq(t, "new")) {
          pre += "new ";
          t = get(tok, i += 2);
        }
        assertTrue(isIdentifier(t));
        i += 2;
        String type = t, name = "?";
        while (eq(get(tok, i), ".") && !eqGet(tok, i + 2, ".")) {
          type += "." + assertIdentifier(get(tok, i + 2));
          i += 4;
        }
        if (eqOneOf(get(tok, i), null, ",")) {
          name = type;
          type = "?";
        } else {
          if (eq(tok.get(i), "<")) {
            int j = findEndOfTypeArgs(tok, i) - 1;
            while (eq(get(tok, j), "[") && eq(get(tok, j + 2), "]")) j += 4;
            type += trimJoinSubList(tok, i, j + 1);
            String id = assertIdentifier(tok.get(j + 2));
            i = j + 2;
          }
          while (eq(get(tok, i), "[") && eq(get(tok, i + 2), "]")) {
            i += 4;
            type += "[]";
          }
          if (eqGet(tok, i, "etc")) {
            i += 2;
            type += " etc";
          }
          if (eqGet(tok, i, ".") && eqGet(tok, i + 2, ".") && eqGet(tok, i + 4, ".")) {
            type += "...";
            i += 6;
          }
          name = assertIdentifier(tok.get(i));
          i += 2;
          while (eq(get(tok, i), "[") && eq(get(tok, i + 2), "]")) {
            i += 4;
            type += "[]";
          }
          if (eqGet(tok, i, "default"))
            i = tok_findEndOfExpression(tok, i + 2) + 1;
          if (i < l(tok)) {
            assertEquals(get(tok, i), ",");
            i += 2;
          }
        }
        out.add(pair(pre + type, name));
      }
      return out;
    } catch (Throwable e) {
      print("Bad parameter declaration: " + sfu(tok));
      throw rethrow(e);
    }
  }

  static public IntRange shrinkIntRange(IntRange r, int i) {
    return r == null ? null : intRange(r.start + i, r.end - i);
  }

  static public String tok_joinTypesAndNames(List<Pair<String, String>> typesAndNames) {
    return joinWithComma(map(typesAndNames, new F1<Pair<String, String>, String>() {

      public String get(Pair<String, String> p) {
        try {
          return p.a + " " + p.b;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "p.a + \" \" + p.b";
      }
    }));
  }

  static public <A> List<A> reversed(Iterable<A> l) {
    return reversedList(l);
  }

  static public <A> List<A> reversed(A[] l) {
    return reversedList(asList(l));
  }

  static public String reversed(String s) {
    return reversedString(s);
  }

  static public List<String> tok_methodBody(String src) {
    return tok_methodBody(javaTok(src));
  }

  static public List<String> tok_methodBody(List<String> tok) {
    return tok_firstBlock(tok);
  }

  static public <A, B> List<B> secondOfPairs(Collection<Pair<A, B>> l) {
    return lambdaMap(__40 -> secondOfPair(__40), l);
  }

  static public Set<String> functionAdjuvantKeywords_cache;

  static public Set<String> functionAdjuvantKeywords() {
    if (functionAdjuvantKeywords_cache == null)
      functionAdjuvantKeywords_cache = functionAdjuvantKeywords_load();
    return functionAdjuvantKeywords_cache;
  }

  static public Set<String> functionAdjuvantKeywords_load() {
    return litset("mapLike", "mapMethodLike", "nuLike", "lambdaMapLike", "curry1Like", "lambda0Like", "lambdaMethod0LikeFunctions", "getLikeFunctions");
  }

  static public void clearTokens(List<String> tok) {
    clearAllTokens(tok);
  }

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

  static public void clearTokens(List<String> tok, IntRange r) {
    clearAllTokens(tok, r.start, r.end);
  }

  static public String tok_javaDropCommentsFromWhitespace(String s) {
    int l = l(s), j = 0;
    StringBuilder buf = new StringBuilder();
    while (j < l) {
      char c = s.charAt(j);
      char d = j + 1 >= l ? '\0' : s.charAt(j + 1);
      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 {
        buf.append(c);
        ++j;
      }
    }
    return str(buf);
  }

  static public <A> int indexOfSubList(List<A> x, List<A> y) {
    return indexOfSubList(x, y, 0);
  }

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

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

  static public boolean neqGet(List l, int i, Object o) {
    return neq(get(l, i), o);
  }

  static public void tokPrepend(List<String> tok, String s) {
    tokPrepend(tok, 0, s);
  }

  static public void tokPrepend(List<String> tok, int i, String s) {
    tok.set(i, s + tok.get(i));
  }

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

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

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

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

  static public 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 public boolean loadBufferedImage_useImageCache = true;

  static public BufferedImage loadBufferedImage(String snippetIDOrURLOrFile) {
    try {
      ping();
      if (snippetIDOrURLOrFile == null)
        return null;
      if (isURL(snippetIDOrURLOrFile))
        return imageIO_readURL(snippetIDOrURLOrFile);
      if (isSnippetID(snippetIDOrURLOrFile)) {
        String snippetID = "" + parseSnippetID(snippetIDOrURLOrFile);
        IResourceLoader rl = vm_getResourceLoader();
        if (rl != null)
          return loadBufferedImage(rl.loadLibrary(snippetID));
        File dir = imageSnippetsCacheDir();
        if (loadBufferedImage_useImageCache) {
          dir.mkdirs();
          File file = new File(dir, snippetID + ".png");
          if (file.exists() && file.length() != 0)
            try {
              return ImageIO.read(file);
            } catch (Throwable e) {
              e.printStackTrace();
            }
        }
        String imageURL = snippetImageURL_http(snippetID);
        print("Loading image: " + imageURL);
        BufferedImage image = imageIO_readURL(imageURL);
        if (loadBufferedImage_useImageCache) {
          File tempFile = new File(dir, snippetID + ".tmp." + System.currentTimeMillis());
          ImageIO.write(image, "png", tempFile);
          tempFile.renameTo(new File(dir, snippetID + ".png"));
        }
        return image;
      } else
        return loadBufferedImage(new File(snippetIDOrURLOrFile));
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public BufferedImage loadBufferedImage(File file) {
    return loadBufferedImageFile(file);
  }

  static public <A> A liftLast(List<A> l) {
    if (empty(l))
      return null;
    int i = l(l) - 1;
    A a = l.get(i);
    l.remove(i);
    return a;
  }

  static public <A> List<A> liftLast(int n, List<A> l) {
    int i = l(l) - n;
    List<A> part = cloneSubList(l, i);
    removeSubList(l, i);
    return part;
  }

  static public JPanel jpanel(LayoutManager layout, Object... components) {
    return jpanel(layout, asList(components));
  }

  static public JPanel jpanel(LayoutManager layout, List components) {
    return smartAdd(jpanel(layout), components);
  }

  static public JPanel jpanel(LayoutManager layout) {
    return swing(() -> new JPanel(layout));
  }

  static public JPanel jpanel() {
    return swing(() -> new JPanel());
  }

  static public 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 public Iterator emptyIterator() {
    return Collections.emptyIterator();
  }

  static public boolean isURL(String s) {
    return startsWithOneOf(s, "http://", "https://", "file:");
  }

  static public File imageSnippetCacheFile(String snippetID) {
    File dir = imageSnippetsCacheDir();
    if (!loadBufferedImage_useImageCache)
      return null;
    return new File(dir, parseSnippetID(snippetID) + ".png");
  }

  static public String snippetImageURL_noHttps(String snippetID) {
    return snippetImageURL_noHttps(snippetID, "png");
  }

  static public String snippetImageURL_noHttps(String snippetID, String contentType) {
    return snippetImageURL(snippetID, contentType).replace("https://www.botcompany.de:8443/", "http://www.botcompany.de:8080/").replace("https://botcompany.de/", "http://botcompany.de/");
  }

  static public ThreadLocal<Map<String, List<String>>> loadBinaryPage_responseHeaders = new ThreadLocal();

  static public ThreadLocal<Map<String, String>> loadBinaryPage_extraHeaders = new ThreadLocal();

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

  static public byte[] loadBinaryPage(URLConnection con) {
    try {
      Map<String, String> extraHeaders = getAndClearThreadLocal(loadBinaryPage_extraHeaders);
      setHeaders(con);
      for (String key : keys(extraHeaders)) con.setRequestProperty(key, extraHeaders.get(key));
      return loadBinaryPage_noHeaders(con);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  public static byte[] saveBinaryFile(String fileName, byte[] contents) {
    try {
      File file = new File(fileName);
      File parentFile = file.getParentFile();
      if (parentFile != null)
        parentFile.mkdirs();
      String tempFileName = fileName + "_temp";
      try (FileOutputStream fileOutputStream = newFileOutputStream(tempFileName)) {
        fileOutputStream.write(contents);
      }
      if (file.exists() && !file.delete())
        throw new IOException("Can't delete " + fileName);
      if (!new File(tempFileName).renameTo(file))
        throw new IOException("Can't rename " + tempFileName + " to " + fileName);
      vmBus_send("wroteFile", file);
      return contents;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public byte[] saveBinaryFile(File fileName, byte[] contents) {
    return saveBinaryFile(fileName.getPath(), contents);
  }

  static public File getGlobalCache() {
    File file = new File(javaxCachesDir(), "Binary Snippets");
    file.mkdirs();
    return file;
  }

  static public String dataSnippetLink(String snippetID) {
    long id = parseSnippetID(snippetID);
    if (id >= 1100000 && id < 1200000)
      return imageServerURL() + id;
    if (id >= 1200000 && id < 1300000) {
      String pw = muricaPassword();
      if (empty(pw))
        throw fail("Please set 'murica password by running #1008829");
      return "https://botcompany.de/files/" + id + "?_pass=" + pw;
    }
    return fileServerURL() + "/" + id;
  }

  static public <B, A extends B> A addAndReturn(Collection<B> c, A a) {
    if (c != null)
      c.add(a);
    return a;
  }

  static public <B, A extends B> A addAndReturn(List<B> c, int idx, A a) {
    if (c != null)
      c.add(idx, a);
    return a;
  }

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

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

  static public void loadBinaryPageToFile_noHeaders(URLConnection con, File file) {
    try {
      assertNotNull(file);
      File ftemp = new File(f2s(file) + "_temp");
      FileOutputStream buf = newFileOutputStream(mkdirsFor(ftemp));
      try {
        InputStream inputStream = con.getInputStream();
        long len = 0;
        try {
          len = con.getContentLength();
        } catch (Throwable e) {
          printStackTrace(e);
        }
        String pat = "  {*}" + (len != 0 ? "/" + len : "") + " bytes loaded.";
        copyStreamWithPrints(inputStream, buf, pat);
        inputStream.close();
        buf.close();
        file.delete();
        renameFile_assertTrue(ftemp, file);
      } finally {
        if (buf != null)
          buf.close();
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  static public URLConnection openConnection(URL url) {
    try {
      ping();
      callOpt(javax(), "recordOpenURLConnection", str(url));
      return url.openConnection();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public List<String> allToString(Iterable c) {
    List<String> l = new ArrayList();
    for (Object o : unnull(c)) l.add(str(o));
    return l;
  }

  static public List<String> allToString(Object[] c) {
    List<String> l = new ArrayList();
    for (Object o : unnull(c)) l.add(str(o));
    return l;
  }

  static public byte[] bytesFromHex(String s) {
    return hexToBytes(s);
  }

  static public boolean byteArrayStartsWith(byte[] a, byte[] b) {
    if (a == null || b == null)
      return false;
    if (a.length < b.length)
      return false;
    for (int i = 0; i < b.length; i++) if (a[i] != b[i])
      return false;
    return true;
  }

  static public byte[] loadBeginningOfBinaryFile(File file, int maxBytes) {
    return loadBinaryFilePart(file, 0, maxBytes);
  }

  static public ThreadLocal<PCallPolicy> pcallPolicyForThread_tl_tl = new ThreadLocal();

  static public ThreadLocal<PCallPolicy> pcallPolicyForThread_tl() {
    return pcallPolicyForThread_tl_tl;
  }

  static public PCallPolicy defaultPCallPolicy = __1 -> printStackTrace(__1);

  static public PCallPolicy defaultPCallPolicy() {
    return defaultPCallPolicy;
  }

  static public void defaultPCallPolicy_set(PCallPolicy policy) {
    defaultPCallPolicy = policy;
  }

  static public int indexOfIgnoreCase(List<String> a, String b) {
    return indexOfIgnoreCase(a, b, 0);
  }

  static public int indexOfIgnoreCase(List<String> a, String b, int i) {
    int n = a == null ? 0 : a.size();
    for (; i < n; i++) if (eqic(a.get(i), b))
      return i;
    return -1;
  }

  static public int indexOfIgnoreCase(String[] a, String b) {
    return indexOfIgnoreCase(a, b, 0);
  }

  static public int indexOfIgnoreCase(String[] a, String b, int i) {
    int n = a == null ? 0 : a.length;
    for (; i < n; i++) if (eqic(a[i], b))
      return i;
    return -1;
  }

  static public int indexOfIgnoreCase(String a, String b) {
    return indexOfIgnoreCase_manual(a, b);
  }

  static public int indexOfIgnoreCase(String a, String b, int i) {
    return indexOfIgnoreCase_manual(a, b, i);
  }

  static public boolean rectContains(int x1, int y1, int w, int h, Pt p) {
    return p.x >= x1 && p.y >= y1 && p.x < x1 + w && p.y < y1 + h;
  }

  static public boolean rectContains(Rect a, Rect b) {
    return b.x >= a.x && b.y >= a.y && b.x2() <= a.x2() && b.y2() <= a.y2();
  }

  static public boolean rectContains(Rect a, Rectangle b) {
    return rectContains(a, toRect(b));
  }

  static public boolean rectContains(Rect a, int x, int y) {
    return a != null && a.contains(x, y);
  }

  static public boolean rectContains(Rect a, Pt p) {
    return a != null && p != null && a.contains(p);
  }

  static public Image loadBufferedImagePossiblyFixingGIFs(File file) {
    return loadBufferedImageFixingGIFs(file);
  }

  static public void logQuotedWithTime(String s) {
    logQuotedWithTime(standardLogFile(), s);
  }

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

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

  static public String logQuotedWithTime_format(String s) {
    return (now()) + " " + s;
  }

  static public File javaxDataDir_dir;

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

  static public File javaxDataDir(String... subs) {
    return newFile(javaxDataDir(), subs);
  }

  static public JTextArea wrappedTextArea(final JTextArea ta) {
    enableWordWrapForTextArea(ta);
    return ta;
  }

  static public JTextArea wrappedTextArea() {
    return wrappedTextArea(jtextarea());
  }

  static public JTextArea wrappedTextArea(String text) {
    JTextArea ta = wrappedTextArea();
    setText(ta, text);
    return ta;
  }

  static public Font typeWriterFont() {
    return typeWriterFont(iround(14 * getSwingFontScale()));
  }

  static public Font typeWriterFont(int size) {
    return new Font(localCourierFontName(), Font.PLAIN, size);
  }

  static public <A extends JComponent> A typeWriterFont(A c) {
    return withTypeWriterFont(c);
  }

  static public Rect preferredScreenBounds() {
    return screenBounds_safe(preferredScreen());
  }

  static public boolean vmBus_anyFalse(String msg, Object... args) {
    return contains(vmBus_queryAll(msg, args), false);
  }

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

  static public Throwable getInnerException(Throwable e) {
    if (e == null)
      return null;
    while (e.getCause() != null) e = e.getCause();
    return e;
  }

  static public Throwable getInnerException(Runnable r) {
    return getInnerException(getException(r));
  }

  static public String baseClassName(String className) {
    return substring(className, className.lastIndexOf('.') + 1);
  }

  static public String baseClassName(Object o) {
    return baseClassName(getClassName(o));
  }

  static public String prependIfNempty(String prefix, String s) {
    return empty(s) ? unnull(s) : prefix + s;
  }

  static public List<String> dropAllTags(List<String> tok) {
    List<String> list = new ArrayList();
    for (int i = 0; i < l(tok); i++) {
      String t = tok.get(i);
      if (odd(i) && t.startsWith("<")) {
        list.set(list.size() - 1, list.get(list.size() - 1) + tok.get(i + 1));
        ++i;
      } else
        list.add(t);
    }
    return list;
  }

  static public String dropAllTags(String html) {
    if (!contains(html, '<'))
      return html;
    return join(dropAllTags(htmlcoarsetok(html)));
  }

  static public String htmldecode(final String input) {
    if (input == null)
      return null;
    final int MIN_ESCAPE = 2;
    final int MAX_ESCAPE = 6;
    StringWriter writer = null;
    int len = input.length();
    int i = 1;
    int st = 0;
    while (true) {
      while (i < len && input.charAt(i - 1) != '&') i++;
      if (i >= len)
        break;
      int j = i;
      while (j < len && j < i + MAX_ESCAPE + 1 && input.charAt(j) != ';') j++;
      if (j == len || j < i + MIN_ESCAPE || j == i + MAX_ESCAPE + 1) {
        i++;
        continue;
      }
      if (input.charAt(i) == '#') {
        int k = i + 1;
        int radix = 10;
        final char firstChar = input.charAt(k);
        if (firstChar == 'x' || firstChar == 'X') {
          k++;
          radix = 16;
        }
        try {
          int entityValue = Integer.parseInt(input.substring(k, j), radix);
          if (writer == null)
            writer = new StringWriter(input.length());
          writer.append(input.substring(st, i - 1));
          if (entityValue > 0xFFFF) {
            final char[] chrs = Character.toChars(entityValue);
            writer.write(chrs[0]);
            writer.write(chrs[1]);
          } else {
            writer.write(entityValue);
          }
        } catch (NumberFormatException ex) {
          i++;
          continue;
        }
      } else {
        CharSequence value = htmldecode_lookupMap().get(input.substring(i, j));
        if (value == null) {
          i++;
          continue;
        }
        if (writer == null)
          writer = new StringWriter(input.length());
        writer.append(input.substring(st, i - 1));
        writer.append(value);
      }
      st = j + 1;
      i = st;
    }
    if (writer != null) {
      writer.append(input.substring(st, len));
      return writer.toString();
    }
    return input;
  }

  static public HashMap<String, CharSequence> htmldecode_lookupMap_cache;

  static public HashMap<String, CharSequence> htmldecode_lookupMap() {
    if (htmldecode_lookupMap_cache == null)
      htmldecode_lookupMap_cache = htmldecode_lookupMap_load();
    return htmldecode_lookupMap_cache;
  }

  static public HashMap<String, CharSequence> htmldecode_lookupMap_load() {
    var map = new HashMap<String, CharSequence>();
    for (CharSequence[] seq : htmldecode_escapes()) map.put(seq[1].toString(), seq[0]);
    return map;
  }

  static public List<String> isYes_yesses = litlist("y", "yes", "yeah", "y", "yup", "yo", "corect", "sure", "ok", "afirmative");

  static public boolean isYes(String s) {
    return isYes_yesses.contains(collapseWord(toLowerCase(firstWord2(s))));
  }

  static public List<String> javaTokForStructure(String s) {
    return javaTok_noMLS(s);
  }

  static public String structure_addTokenMarkers(String s) {
    return join(structure_addTokenMarkers(javaTokForStructure(s)));
  }

  static public List<String> structure_addTokenMarkers(List<String> tok) {
    TreeSet<Integer> refs = new TreeSet();
    for (int i = 1; i < l(tok); i += 2) {
      String t = tok.get(i);
      if (t.startsWith("t") && isInteger(t.substring(1)))
        refs.add(parseInt(t.substring(1)));
    }
    if (empty(refs))
      return tok;
    for (int i : refs) {
      int idx = i * 2 + 1;
      if (idx >= l(tok))
        continue;
      String t = "";
      if (endsWithLetterOrDigit(tok.get(idx - 1)))
        t = " ";
      tok.set(idx, t + "m" + i + " " + tok.get(idx));
    }
    return tok;
  }

  static public boolean isNormalQuoted(String s) {
    int l = l(s);
    if (!(l >= 2 && s.charAt(0) == '"' && lastChar(s) == '"'))
      return false;
    int j = 1;
    while (j < l) if (s.charAt(j) == '"')
      return j == l - 1;
    else if (s.charAt(j) == '\\' && j + 1 < l)
      j += 2;
    else
      ++j;
    return false;
  }

  static public boolean isMultilineQuoted(String s) {
    if (!startsWith(s, "["))
      return false;
    int i = 1, n = s.length();
    while (i < n && s.charAt(i) == '=') ++i;
    return i < n && s.charAt(i) == '[';
  }

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

  static public boolean checkCondition(Object condition, Object... args) {
    return isTrue(callF(condition, args));
  }

  static public <A> boolean checkCondition(IF1<A, Boolean> condition, A arg) {
    return isTrue(callF(condition, arg));
  }

  static public boolean fileExists(String path) {
    return path != null && new File(path).exists();
  }

  static public boolean fileExists(File f) {
    return f != null && f.exists();
  }

  static public CloseableIterableIterator emptyCloseableIterableIterator_instance = new CloseableIterableIterator() {

    public Object next() {
      throw fail();
    }

    public boolean hasNext() {
      return false;
    }
  };

  static public <A> CloseableIterableIterator<A> emptyCloseableIterableIterator() {
    return emptyCloseableIterableIterator_instance;
  }

  static public CloseableIterableIterator<String> linesFromReader(Reader r) {
    return linesFromReader(r, null);
  }

  static public CloseableIterableIterator<String> linesFromReader(Reader r, IResourceHolder resourceHolder) {
    final BufferedReader br = bufferedReader(r);
    return holdResource(resourceHolder, iteratorFromFunction_f0_autoCloseable(new F0<String>() {

      public String get() {
        try {
          return readLineFromReaderWithClose(br);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return readLineFromReaderWithClose(br);";
      }
    }, _wrapIOCloseable(r)));
  }

  static public BufferedReader utf8bufferedReader(InputStream in) {
    try {
      return in == null ? null : bufferedReader(_registerIOWrap(new InputStreamReader(in, "UTF-8"), in));
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  static public GZIPInputStream newGZIPInputStream(File f) {
    return gzInputStream(f);
  }

  static public GZIPInputStream newGZIPInputStream(InputStream in) {
    return gzInputStream(in);
  }

  public static File mkdirsForFile(File file) {
    File dir = file.getParentFile();
    if (dir != null) {
      dir.mkdirs();
      if (!dir.isDirectory())
        if (dir.isFile())
          throw fail("Please delete the file " + f2s(dir) + " - it is supposed to be a directory!");
        else
          throw fail("Unknown IO exception during mkdirs of " + f2s(file));
    }
    return file;
  }

  public static String mkdirsForFile(String path) {
    mkdirsForFile(new File(path));
    return path;
  }

  static public long now_virtualTime;

  static public long now() {
    return now_virtualTime != 0 ? now_virtualTime : System.currentTimeMillis();
  }

  static public File copyFile(File src, File dest) {
    try {
      FileInputStream inputStream = new FileInputStream(src.getPath());
      FileOutputStream outputStream = newFileOutputStream(dest.getPath());
      try {
        copyStream(inputStream, outputStream);
        inputStream.close();
      } finally {
        outputStream.close();
      }
      return dest;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

  static public FileOutputStream newFileOutputStream(File path, boolean append) throws IOException {
    return newFileOutputStream(path.getPath(), append);
  }

  static public FileOutputStream newFileOutputStream(String path, boolean append) throws IOException {
    mkdirsForFile(path);
    FileOutputStream f = new FileOutputStream(path, append);
    _registerIO(f, path, true);
    return f;
  }

  static public String _userHome;

  static public String userHome() {
    if (_userHome == null)
      return actualUserHome();
    return _userHome;
  }

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

  static public byte[] toUtf8(String s) {
    try {
      return s.getBytes(utf8charset());
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public Map<Object, Object> castMapToMapO(Map map) {
    return map;
  }

  static public boolean even(int i) {
    return (i & 1) == 0;
  }

  static public boolean even(long i) {
    return (i & 1) == 0;
  }

  static public boolean even(BigInteger n) {
    return even(n.intValue());
  }

  static public String getComputerID_quick() {
    return computerID();
  }

  static public TreeSet<String> caseInsensitiveSet() {
    return caseInsensitiveSet_treeSet();
  }

  static public TreeSet<String> caseInsensitiveSet(Collection<String> c) {
    return caseInsensitiveSet_treeSet(c);
  }

  static public <A> TreeSet<A> treeSet() {
    return new TreeSet();
  }

  static public char lastChar(String s) {
    return empty(s) ? '\0' : s.charAt(l(s) - 1);
  }

  static public <A> A[] arrayOfSameType(A[] a, int n) {
    return newObjectArrayOfSameType(a, n);
  }

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

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

  static public Method findMethod_cached(Object o, String method, Object... args) {
    try {
      if (o == null)
        return null;
      if (o instanceof Class) {
        _MethodCache cache = callOpt_getCache((Class) o);
        List<Method> methods = cache.cache.get(method);
        if (methods != null)
          for (Method m : methods) if (isStaticMethod(m) && findMethod_checkArgs(m, args, false))
            return m;
        return null;
      } else {
        _MethodCache cache = callOpt_getCache(o.getClass());
        List<Method> methods = cache.cache.get(method);
        if (methods != null)
          for (Method m : methods) if (findMethod_checkArgs(m, args, false))
            return m;
        return null;
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public boolean isLetterOrDigit(char c) {
    return Character.isLetterOrDigit(c);
  }

  static public <A> List<A> dropFirstThreeAndLastThree(List<A> l) {
    return dropFirstAndLast(3, l);
  }

  static public List<String> tok_combineCurlyBrackets_keep(List<String> tok) {
    List<String> l = new ArrayList();
    for (int i = 0; i < l(tok); i++) {
      String t = tok.get(i);
      if (odd(i) && eq(t, "{")) {
        int j = findEndOfCurlyBracketPart(tok, i);
        l.add(joinSubList(tok, i, j));
        i = j - 1;
      } else
        l.add(t);
    }
    return l;
  }

  static public boolean startsWithAndEndsWith(String s, String prefix, String suffix) {
    return startsWith(s, prefix) && endsWith(s, suffix);
  }

  static public boolean containsNewLines(String s) {
    return containsNewLine(s);
  }

  static public String jlabel_textAsHTML_center(String text) {
    return "<html><div style=\"text-align: center;\">" + replace(htmlencode2(text), "\n", "<br>") + "</div></html>";
  }

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

  static public String dropNumberPrefix(String s) {
    return dropFirst(s, indexOfNonDigit(s));
  }

  static public <A, B> Map<A, B> synchronizedMRUCache(int maxSize) {
    return synchroMap(new MRUCache(maxSize));
  }

  static public void removeSubList(List l, int from, int to) {
    if (l != null)
      subList(l, from, to).clear();
  }

  static public void removeSubList(List l, int from) {
    if (l != null)
      subList(l, from).clear();
  }

  static public <A, B extends A> void copyListPart(List<B> a, int i1, List<A> b, int i2, int n) {
    if (a == null || b == null)
      return;
    for (int i = 0; i < n; i++) b.set(i2 + i, a.get(i1 + i));
  }

  static public String dm_makeModule(String moduleLibID) {
    return (String) dm_callOS("makeModule", moduleLibID);
  }

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

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

  static public boolean odd(BigInteger i) {
    return odd(toInt(i));
  }

  static public File associatedInfosFile(File f) {
    return replaceExtension(f, ".infos");
  }

  static public String lines(Iterable lines) {
    return fromLines(lines);
  }

  static public String lines(Object[] lines) {
    return fromLines(asList(lines));
  }

  static public List<String> lines(String s) {
    return toLines(s);
  }

  static public <A> String lines(Iterable<A> l, IF1<A, String> f) {
    return mapToLines(l, f);
  }

  static public String firstStartingWithIC_drop(Collection<String> l, final String prefix) {
    for (String s : unnull(l)) if (swic(s, prefix))
      return substring(s, l(prefix));
    return null;
  }

  static public String firstStartingWithIC_drop(String prefix, Collection<String> l) {
    return firstStartingWithIC_drop(l, prefix);
  }

  static public File programDir_mine;

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

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

  static public File programDir(String snippetID, String subPath) {
    return new File(programDir(snippetID), subPath);
  }

  static public <A> List<A> wrapArrayAsList(A[] a) {
    return a == null ? null : Arrays.asList(a);
  }

  static public int tok_findEndOfBlock_IContentsIndexedList2_v2(IContentsIndexedList2<String> tok, int i) {
    int n = l(tok);
    HasIndex start = new HasIndex(i);
    TreeSet<HasIndex> openers = tok.indicesOf_treeSetOfHasIndex("{");
    Iterator<HasIndex> iOpener = openers == null ? null : openers.tailSet(start, false).iterator();
    TreeSet<HasIndex> closers = tok.indicesOf_treeSetOfHasIndex("}");
    Iterator<HasIndex> iCloser = closers == null ? null : closers.tailSet(start, false).iterator();
    int level = 1;
    HasIndex nextOpener = iOpener != null && iOpener.hasNext() ? iOpener.next() : null;
    HasIndex nextCloser = iCloser != null && iCloser.hasNext() ? iCloser.next() : null;
    while (true) {
      if (nextCloser == null)
        return n;
      if (nextOpener != null && nextOpener.idx < nextCloser.idx) {
        ++level;
        nextOpener = iOpener.hasNext() ? iOpener.next() : null;
      } else {
        if (--level == 0)
          return nextCloser.idx + 1;
        nextCloser = iCloser.hasNext() ? iCloser.next() : null;
      }
    }
  }

  static public Dimension getScreenSize() {
    return Toolkit.getDefaultToolkit().getScreenSize();
  }

  static public Dimension getScreenSize(int iScreen) {
    return toDimension(screenBounds(iScreen).widthAndHeight());
  }

  static public String programTitle() {
    return getProgramName();
  }

  static public JFrame setFrameIconLater(Component c, final String imageID) {
    final JFrame frame = getFrame(c);
    if (frame != null)
      startThread("Loading Icon", new Runnable() {

        public void run() {
          try {
            final Image i = imageIcon(or2(imageID, "#1005557")).getImage();
            swingLater(new Runnable() {

              public void run() {
                try {
                  frame.setIconImage(i);
                } catch (Exception __e) {
                  throw rethrow(__e);
                }
              }

              public String toString() {
                return "frame.setIconImage(i);";
              }
            });
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "final Image i = imageIcon(or2(imageID, \"#1005557\")).getImage();\r\n      swingL...";
        }
      });
    return frame;
  }

  static public void _initFrame(JFrame f) {
    myFrames_list.put(f, Boolean.TRUE);
    standardTitlePopupMenu(f);
  }

  static public Rectangle defaultNewFrameBounds_r = new Rectangle(300, 100, 500, 400);

  static public Rectangle defaultNewFrameBounds() {
    return swing(new F0<Rectangle>() {

      public Rectangle get() {
        try {
          defaultNewFrameBounds_r.translate(60, 20);
          var bounds = preferredScreenBounds();
          if (!bounds.contains(defaultNewFrameBounds_r))
            defaultNewFrameBounds_r.setLocation(centerX(bounds) + random_incl(-30, 30), centerY(bounds) + random_incl(-20, 20));
          return new Rectangle(defaultNewFrameBounds_r);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "defaultNewFrameBounds_r.translate(60, 20);\r\n    var bounds = preferredScreenB...";
      }
    });
  }

  static public void hideConsole() {
    final JFrame frame = consoleFrame();
    if (frame != null) {
      autoVMExit();
      swingLater(new Runnable() {

        public void run() {
          try {
            frame.setVisible(false);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "frame.setVisible(false);";
        }
      });
    }
  }

  static public Map synchroHashMap() {
    return synchronizedMap(new HashMap());
  }

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

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

  static public Class _getClass(Object realm, String name) {
    try {
      return classLoaderForObject(realm).loadClass(classNameToVM(name));
    } catch (ClassNotFoundException e) {
      return null;
    }
  }

  static public JInternalFrame getInternalFrame(final Object _o) {
    return _o == null ? null : swing(new F0<JInternalFrame>() {

      public JInternalFrame get() {
        try {
          Object o = _o;
          if (o instanceof ButtonGroup)
            o = first(buttonsInGroup((ButtonGroup) o));
          if (!(o instanceof Component))
            return null;
          Component c = (Component) o;
          while (c != null) {
            if (c instanceof JInternalFrame)
              return (JInternalFrame) c;
            c = c.getParent();
          }
          return null;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "O o = _o;\r\n    if (o instanceof ButtonGroup) o = first(buttonsInGroup((Button...";
      }
    });
  }

  static public <A> A optCast(Class<A> c, Object o) {
    return isInstance(c, o) ? (A) o : null;
  }

  static public MenuItem menuItem(String text, final Object r) {
    MenuItem mi = new MenuItem(text);
    mi.addActionListener(actionListener(r));
    return mi;
  }

  static public void addDirectMenuItem(JMenuBar mb, String text, Object action) {
    if (mb != null) {
      swing(() -> {
        addDirectMenuItem(mb, directJMenuItem(text, action));
      });
    }
  }

  static public void addDirectMenuItem(Component c, String text, Object action) {
    addDirectMenuItem(addMenuBar(c), text, action);
  }

  static public void addDirectMenuItem(JMenuBar mb, JMenuItem menuItem) {
    if (mb != null) {
      swing(() -> {
        mb.add(menuItem);
        revalidate(mb);
      });
    }
  }

  static public <A> Set<A> synchroWeakHashSet() {
    return Collections.newSetFromMap((Map) newWeakHashMap());
  }

  static public IMeta initIMeta(Object o) {
    if (o == null)
      return null;
    if (o instanceof IMeta)
      return ((IMeta) o);
    if (o instanceof JComponent)
      return initMetaOfJComponent((JComponent) o);
    if (o instanceof BufferedImage)
      return optCast(IMeta.class, ((BufferedImage) o).getProperty("meta"));
    return null;
  }

  static public <A> Set<A> synchroLinkedHashSet() {
    return synchronizedSet(new CompactLinkedHashSet());
  }

  static public String mainClassNameForClassLoader(ClassLoader cl) {
    return or((String) callOpt(cl, "mainClassName"), "main");
  }

  static public Class loadClassFromClassLoader_orNull(ClassLoader cl, String name) {
    try {
      return cl == null ? null : cl.loadClass(name);
    } catch (ClassNotFoundException e) {
      return null;
    }
  }

  static public <A> A vm_generalMap_getOrCreate(Object key, F0<A> create) {
    return vm_generalMap_getOrCreate(key, f0ToIF0(create));
  }

  static public <A> A vm_generalMap_getOrCreate(Object key, IF0<A> create) {
    Map generalMap = vm_generalMap();
    if (generalMap == null)
      return null;
    synchronized (generalMap) {
      A a = (A) (vm_generalMap_get(key));
      if (a == null)
        vm_generalMap_put(key, a = create == null ? null : create.get());
      return a;
    }
  }

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

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

  static public <A> A callF_gen(IF0<A> f) {
    return f == null ? null : f.get();
  }

  static public <A, B> B callF_gen(IF1<A, B> f, A a) {
    return f == null ? null : f.get(a);
  }

  static public <A, B> B callF_gen(A a, IF1<A, B> f) {
    return f == null ? null : f.get(a);
  }

  static public <A, B, C> C callF_gen(IF2<A, B, C> f, A a, B b) {
    return f == null ? null : f.get(a, b);
  }

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

  static public <A> void callF_gen(A a, IVF1<A> f) {
    {
      if (f != null)
        f.get(a);
    }
  }

  static public <A> void callF_gen(IVF1<A> f, A a) {
    {
      if (f != null)
        f.get(a);
    }
  }

  static public Object callF_gen(Runnable r) {
    {
      if (r != null)
        r.run();
    }
    return null;
  }

  static public Object callF_gen(Object f, Object... args) {
    return callF(f, args);
  }

  static public Random customRandomizerForThisThread() {
    return customRandomizerForThisThread_tl().get();
  }

  static public void setConsoleInput(String text) {
    consoleSetInput(text);
  }

  static public JComponent consoleInputFieldOrComboBox() {
    Object console = get(getJavaX(), "console");
    JComboBox cb = (JComboBox) (getOpt(console, "cbInput"));
    if (cb != null)
      return cb;
    return (JTextField) getOpt(console, "tfInput");
  }

  static public JFrame consoleFrame() {
    return (JFrame) getOpt(get(getJavaX(), "console"), "frame");
  }

  static public void revalidateFrame(Component c) {
    revalidate(getFrame(c));
  }

  static public Component jrigid() {
    return javax.swing.Box.createRigidArea(new Dimension(0, 0));
  }

  static public void tok_directSnippetRefs(List<String> tok) {
    int i = -1;
    while ((i = jfind(tok, i + 1, "#<int>", new TokCondition() {

      public boolean get(final List<String> tok, final int i) {
        return !eqOneOf(_get(tok, i - 1), "include", "once");
      }
    })) >= 0) {
      String id = tok.get(i + 2);
      clearTokens(tok, i + 1, i + 3);
      tok.set(i, quote("#" + id));
      reTok(tok, i, i + 3);
    }
  }

  static public List<Integer> jfindAll(List<String> tok, String pat) {
    return jfindAll(tok, pat, null);
  }

  static public List<Integer> jfindAll(List<String> tok, String pat, ITokCondition condition) {
    return jfindAll(tok, jfind_preprocess(javaTok(pat)), condition);
  }

  static public List<Integer> jfindAll(List<String> tok, List<String> tokPat) {
    return jfindAll(tok, tokPat, null);
  }

  static public List<Integer> jfindAll(List<String> tok, List<String> tokPat, ITokCondition condition) {
    TokCondition cond = toTokCondition(condition);
    String[] toks = toStringArray(codeTokensOnly(tokPat));
    int i = -1;
    List<Integer> l = new ArrayList();
    while ((i = findCodeTokens(tok, i + 1, false, toks, cond)) >= 0) l.add(i);
    return l;
  }

  static public String addSuffix(String s, String suffix) {
    return s == null || s.endsWith(suffix) ? s : s + suffix;
  }

  static public List<String> stdFunctionListSnippetIDs() {
    return ll("#1006654", "#761");
  }

  static public Map<Integer, Integer> getBracketMap(List tok) {
    return getBracketMap(tok, getBracketMap_opening, getBracketMap_closing);
  }

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

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

  static public Map<Integer, Integer> getBracketMap(List<String> tok, IF1<String, Boolean> opening, IF1<String, Boolean> closing) {
    return getBracketMap(tok, opening, closing, 0, l(tok));
  }

  static public Map<Integer, Integer> getBracketMap(List<String> tok, IF1<String, Boolean> opening, IF1<String, Boolean> closing, int from, int to) {
    TreeMap<Integer, Integer> map = new TreeMap();
    List<Integer> stack = new ArrayList();
    for (int i = from | 1; i < to; i += 2) {
      String t = tok.get(i);
      if (opening.get(t))
        stack.add(i);
      else if (closing.get(t))
        if (!empty(stack))
          map.put(liftLast(stack), i);
    }
    return map;
  }

  static public Set<String> getBracketMap_opening = lithashset("{", "(");

  static public Set<String> getBracketMap_closing = lithashset("}", ")");

  static public <A> boolean eqGetOneOf(List<A> l, int i, A... options) {
    return eqOneOf(get(l, i), options);
  }

  static public String trimJoinSubList(List<String> l, int i, int j) {
    return trim(join(subList(l, i, j)));
  }

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

  static public <A> void replaceCollection(Collection<A> dest, Collection<A> src) {
    if (dest == src)
      return;
    dest.clear();
    if (src != null)
      dest.addAll(src);
  }

  static public void replaceListPart(List l, int i, int j, List l2) {
    replaceSublist(l, i, j, l2);
  }

  static public BetterThreadLocal<PingSource> pingSource_tl_var = new BetterThreadLocal<PingSource>() {

    @Override
    public PingSource initialValue() {
      return ping_v3_pingSourceMaker().get();
    }
  };

  static public BetterThreadLocal<PingSource> pingSource_tl() {
    return pingSource_tl_var;
  }

  static public <A> List<A> newSubListOrSame(List<A> l, int startIndex) {
    return newSubListOrSame(l, startIndex, l(l));
  }

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

  static public <A> List<A> newSubListOrSame(List<A> l, IntRange r) {
    return newSubListOrSame(l, r.start, r.end);
  }

  static public CharSequence subCharSequence(CharSequence s, int x) {
    return subCharSequence(s, x, s == null ? 0 : s.length());
  }

  static public CharSequence subCharSequence(CharSequence 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.subSequence(x, y);
  }

  static public int[] takeFirstOfIntArray(int[] b, int n) {
    return subIntArray(b, 0, n);
  }

  static public int[] takeFirstOfIntArray(int n, int[] b) {
    return takeFirstOfIntArray(b, n);
  }

  static public short[] takeFirstOfShortArray(short[] b, int n) {
    return subShortArray(b, 0, n);
  }

  static public short[] takeFirstOfShortArray(int n, short[] b) {
    return takeFirstOfShortArray(b, n);
  }

  static public byte[] takeFirstOfByteArray(byte[] b, int n) {
    return subByteArray(b, 0, n);
  }

  static public byte[] takeFirstOfByteArray(int n, byte[] b) {
    return takeFirstOfByteArray(b, n);
  }

  static public double[] takeFirstOfDoubleArray(double[] b, int n) {
    return subDoubleArray(b, 0, n);
  }

  static public double[] takeFirstOfDoubleArray(int n, double[] b) {
    return takeFirstOfDoubleArray(b, n);
  }

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

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

  static public <A> int lastIndexOf(List<A> l, int i, A a) {
    if (l == null)
      return -1;
    for (i = min(l(l), i) - 1; i >= 0; i--) if (eq(l.get(i), a))
      return i;
    return -1;
  }

  static public <A> int lastIndexOf(List<A> l, A a) {
    if (l == null)
      return -1;
    for (int i = l(l) - 1; i >= 0; i--) if (eq(l.get(i), a))
      return i;
    return -1;
  }

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

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

  static public <A> List<A> repeat(int n, A a) {
    return repeat(a, n);
  }

  static public int indent_default = 2;

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

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

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

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

  static public List<String> indent(String indent, List<String> lines) {
    List<String> l = new ArrayList();
    if (lines != null)
      for (String s : lines) l.add(indent + s);
    return l;
  }

  static public RuntimeException todo() {
    throw new RuntimeException("TODO");
  }

  static public RuntimeException todo(Object msg) {
    throw new RuntimeException("TODO: " + msg);
  }

  static public Set<String> getClassDeclarationName_skippables_cache;

  static public Set<String> getClassDeclarationName_skippables() {
    if (getClassDeclarationName_skippables_cache == null)
      getClassDeclarationName_skippables_cache = getClassDeclarationName_skippables_load();
    return getClassDeclarationName_skippables_cache;
  }

  static public Set<String> getClassDeclarationName_skippables_load() {
    return litset("noeq", "mapMethodLike");
  }

  static public boolean tok_isJavaxMetaCommandLeftOf(List<String> tok, int i) {
    int j = i - 2 * 4 - 1;
    if (j >= 0 && jfind(subList(tok, j, i), "set flag <id> .") == 1)
      return true;
    return false;
  }

  static public boolean containsNewLine(String s) {
    return contains(s, '\n');
  }

  static public int leftScanModifiers(List<String> tok, int i) {
    return leftScanModifiers(tok, i, getJavaModifiers());
  }

  static public int leftScanModifiers(List<String> tok, int i, Collection<String> modifiers) {
    while (i > 1 && contains(modifiers, tok.get(i - 2))) i -= 2;
    return i;
  }

  static public <A extends Container> A addComponents(A c, Collection<? extends Component> components) {
    if (nempty(components)) {
      swing(() -> {
        for (Component comp : components) if (comp != null)
          c.add(comp);
        revalidate(c);
      });
    }
    return c;
  }

  static public <A extends Container> A addComponents(A c, Component... components) {
    return addComponents(c, asList(components));
  }

  static public LinkedHashMap orderedMap() {
    return linkedHashMap();
  }

  static public List<String> standardClassesSnippetIDs() {
    return ll("#1003674", "#1034167");
  }

  static public List<String> tlft_j(String text) {
    return toLinesFullTrim_java(text);
  }

  static public String formatWithThousands(long l) {
    return formatWithThousandsSeparator(l);
  }

  static public String plural(String s) {
    return getPlural(s);
  }

  static public double fraction(double d) {
    return d % 1;
  }

  static public String n_fancy2(long l, String singular, String plural) {
    return formatWithThousandsSeparator(l) + " " + trim(l == 1 ? singular : plural);
  }

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

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

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

  static public String n_fancy2(MultiSet ms, String singular, String plural) {
    return n_fancy2(l(ms), singular, plural);
  }

  static public String tok_functionName(List<String> tok) {
    return get(tok, indexOfOneOf(tok, 0, "(", "{") - 2);
  }

  static public Set<String> tok_returnTypesOfStaticFunction_uncleaned(List<String> tok, String functionName) {
    List<List<String>> funcs = findFullFunctionDefs(tok, true);
    TreeSet<String> out = new TreeSet();
    for (List<String> tokF : funcs) {
      int i = indexOfAny(tokF, 0, "(", "{");
      if (i < 0)
        continue;
      String fname = get(tokF, i - 2);
      if (!eq(fname, functionName))
        continue;
      out.add(joinSubList(tokF, 1, i - 3));
    }
    return out;
  }

  static public Set<String> javaxVoidAliases_cache;

  static public Set<String> javaxVoidAliases() {
    if (javaxVoidAliases_cache == null)
      javaxVoidAliases_cache = javaxVoidAliases_load();
    return javaxVoidAliases_cache;
  }

  static public Set<String> javaxVoidAliases_load() {
    return litset("void", "svoid");
  }

  static public boolean boolPar(ThreadLocal<Boolean> tl) {
    return boolOptParam(tl);
  }

  static public boolean boolPar(Object[] __, String name) {
    return boolOptParam(__, name);
  }

  static public boolean boolPar(String name, Object[] __) {
    return boolOptParam(__, name);
  }

  static public boolean boolPar(String name, Map __) {
    return boolOptParam(name, __);
  }

  static public boolean boolPar(String name, Object[] params, boolean defaultValue) {
    return optParam(params, name, defaultValue);
  }

  static public int tok_skipAnnotations(List<String> tok, int i) {
    while (eqGet(tok, i, "@") && isIdentifier(get(tok, i + 2))) i += 4;
    return i;
  }

  static public int findEndOfTypeArgs(List<String> cnc, int i) {
    int j = i + 2, level = 1;
    while (j < cnc.size()) {
      if (cnc.get(j).equals("<"))
        ++level;
      else if (cnc.get(j).equals(">"))
        --level;
      if (level == 0)
        return j + 1;
      ++j;
    }
    return cnc.size();
  }

  static public int tok_findEndOfExpression(List<String> tok, int i) {
    return scanToEndOfInitializer2(tok, i);
  }

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

  static public <A> A assertEquals(String msg, Object x, A y) {
    if (assertVerbose())
      return assertEqualsVerbose(msg, x, y);
    if (!(x == null ? y == null : x.equals(y)))
      throw fail((msg != null ? msg + ": " : "") + y + " != " + x);
    return y;
  }

  static public String sfu(Object o) {
    return structureForUser(o);
  }

  static public <A> List<A> reversedList(Iterable<A> l) {
    List<A> x = cloneList(l);
    Collections.reverse(x);
    return x;
  }

  static public String reversedString(String s) {
    return reverseString(s);
  }

  static public List<String> tok_firstBlock(List<String> tok) {
    int i = indexOf(tok, "{");
    if (i < 0)
      return null;
    return subList(tok, i - 1, findEndOfBlock(tok, i));
  }

  static public String tok_firstBlock(String s) {
    return rejoinTok(s, tok_firstBlock(javaTok(s)));
  }

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

  static public <A> HashSet<A> litset(A... items) {
    return lithashset(items);
  }

  static public BufferedImage imageIO_readURL(String url) {
    try {
      return ImageIO.read(new URL(url));
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public File imageSnippetsCacheDir() {
    return javaxCachesDir("Image-Snippets");
  }

  static public String snippetImageURL_http(String snippetID) {
    return snippetImageURL_http(snippetID, "png");
  }

  static public String snippetImageURL_http(String snippetID, String contentType) {
    return replacePrefix("https://", "http://", snippetImageURL(snippetID, contentType)).replace(":8443", ":8080");
  }

  static public BufferedImage loadBufferedImageFile(File file) {
    try {
      if (!isFile(file))
        return null;
      return ImageIO.read(file);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public <A> List<A> cloneSubList(List<A> l, int startIndex, int endIndex) {
    return newSubList(l, startIndex, endIndex);
  }

  static public <A> List<A> cloneSubList(List<A> l, int startIndex) {
    return newSubList(l, startIndex);
  }

  static public 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 public String snippetImageURL(long snippetID) {
    return snippetImageURL(fsI(snippetID));
  }

  static public String snippetImageURL(String snippetID) {
    return snippetImageURL(snippetID, "png");
  }

  static public String snippetImageURL(String snippetID, String contentType) {
    if (snippetID == null || isURL(snippetID))
      return snippetID;
    long id = parseSnippetID(snippetID);
    String url;
    if (isImageServerSnippet(id))
      url = imageServerLink(id);
    else
      url = "https://botcompany.de/img/" + id;
    return url;
  }

  static public int loadPage_defaultTimeout = 60000;

  static public ThreadLocal<String> loadPage_charset = new ThreadLocal();

  static public boolean loadPage_allowGzip = true, loadPage_debug;

  static public boolean loadPage_anonymous = false;

  static public int loadPage_verboseness = 100000;

  static public int loadPage_retries = 1;

  static public ThreadLocal<Boolean> loadPage_silent = new ThreadLocal();

  static volatile public int loadPage_forcedTimeout;

  static public ThreadLocal<Integer> loadPage_forcedTimeout_byThread = new ThreadLocal();

  static public ThreadLocal<Map<String, List<String>>> loadPage_responseHeaders = new ThreadLocal();

  static public ThreadLocal<Map<String, String>> loadPage_extraHeaders = new ThreadLocal();

  static public ThreadLocal<Long> loadPage_sizeLimit = new ThreadLocal();

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

  public static String loadPageSilently(URL url) {
    try {
      if (!networkAllowanceTest(str(url)))
        throw fail("Not allowed: " + url);
      IOException e = null;
      for (int tries = 0; tries < loadPage_retries; tries++) try {
        URLConnection con = loadPage_openConnection(url);
        return loadPage(con, url);
      } catch (IOException _e) {
        e = _e;
        if (loadPage_debug)
          print(exceptionToStringShort(e));
        if (tries < loadPage_retries - 1)
          sleepSeconds(1);
      }
      throw e;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

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

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

  static public String loadPage(URLConnection con, URL url, boolean addHeaders) {
    try {
      Map<String, String> extraHeaders = getAndClearThreadLocal(loadPage_extraHeaders);
      if (addHeaders)
        try {
          if (!loadPage_anonymous)
            setHeaders(con);
          if (loadPage_allowGzip)
            con.setRequestProperty("Accept-Encoding", "gzip");
          con.setRequestProperty("X-No-Cookies", "1");
          for (String key : keys(extraHeaders)) con.setRequestProperty(key, extraHeaders.get(key));
        } catch (Throwable e) {
        }
      return loadPage(con);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public String loadPage(URLConnection con) {
    try {
      Long limit = optPar(loadPage_sizeLimit);
      URL url = con.getURL();
      vm_generalSubMap("URLConnection per thread").put(currentThread(), con);
      loadPage_responseHeaders.set(con.getHeaderFields());
      InputStream in = null;
      try {
        in = urlConnection_getInputStream(con);
        if (loadPage_debug)
          print("Put stream in map: " + currentThread());
        String contentType = con.getContentType();
        if (contentType == null) {
          throw new IOException("Page could not be read: " + hideCredentials(url));
        }
        String charset = loadPage_charset == null ? null : loadPage_charset.get();
        if (charset == null)
          charset = loadPage_guessCharset(contentType);
        if ("gzip".equals(con.getContentEncoding())) {
          if (loadPage_debug)
            print("loadPage: Using gzip.");
          in = newGZIPInputStream(in);
        }
        Reader r;
        try {
          r = new InputStreamReader(in, unquote(charset));
        } catch (UnsupportedEncodingException e) {
          print(toHex(utf8(charset)));
          throw e;
        }
        boolean silent = isTrue(loadPage_silent.get());
        StringBuilder buf = new StringBuilder();
        int n = 0;
        while (limit == null || n < limit) {
          ping();
          int ch = r.read();
          if (ch < 0)
            break;
          buf.append((char) ch);
          ++n;
          if (!silent && (n % loadPage_verboseness) == 0)
            print("  " + n + " chars read");
        }
        return buf.toString();
      } finally {
        if (loadPage_debug)
          print("loadPage done");
        vm_generalSubMap("URLConnection per thread").remove(currentThread());
        if (in != null)
          in.close();
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public String loadPage_guessCharset(String contentType) {
    Matcher m = regexpMatcher("text/[a-z]+;\\s*charset=([^\\s]+)\\s*", contentType);
    String match = m.matches() ? m.group(1) : null;
    if (loadPage_debug)
      print("loadPage: contentType=" + contentType + ", match: " + match);
    return or(match, "UTF-8");
  }

  static public URLConnection loadPage_openConnection(URL url) {
    URLConnection con = openConnection(url);
    int timeout = toInt(loadPage_forcedTimeout_byThread.get());
    if (timeout == 0)
      timeout = loadPage_forcedTimeout;
    if (timeout != 0)
      setURLConnectionTimeouts(con, loadPage_forcedTimeout);
    else
      setURLConnectionDefaultTimeouts(con, loadPage_defaultTimeout);
    return con;
  }

  static public <A> A getAndClearThreadLocal(ThreadLocal<A> tl) {
    A a = tl.get();
    tl.set(null);
    return a;
  }

  static public <A> A println(A a) {
    return print(a);
  }

  static public File javaxCachesDir_dir;

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

  static public File javaxCachesDir(String sub) {
    return newFile(javaxCachesDir(), sub);
  }

  static public String imageServerURL() {
    return or2(trim(loadTextFile(javaxDataDir("image-server-url.txt"))), "http://botcompany.de/images/raw/");
  }

  static volatile public boolean muricaPassword_pretendNotAuthed = false;

  static public String muricaPassword() {
    if (muricaPassword_pretendNotAuthed)
      return null;
    return trim(loadTextFile(muricaPasswordFile()));
  }

  static public String fileServerURL() {
    return "https://botcompany.de/files";
  }

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

  static public void copyStreamWithPrints(InputStream in, OutputStream out, String pat) {
    try {
      byte[] buf = new byte[65536];
      int total = 0;
      while (true) {
        int n = in.read(buf);
        if (n <= 0)
          return;
        out.write(buf, 0, n);
        if ((total + n) / 100000 > total / 100000)
          print(pat.replace("{*}", str(roundDownTo(100000, total))));
        total += n;
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public File renameFile_assertTrue(File a, File b) {
    try {
      if (a.equals(b))
        return b;
      if (!a.exists())
        throw fail("Source file not found: " + f2s(a));
      if (b.exists())
        throw fail("Target file exists: " + f2s(b));
      mkdirsForFile(b);
      if (!a.renameTo(b))
        throw fail("Can't rename " + f2s(a) + " to " + f2s(b));
      return b;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public byte[] hexToBytes(String s) {
    if (odd(l(s)))
      throw fail("Hex string has odd length: " + quote(shorten(10, s)));
    int n = l(s) / 2;
    byte[] bytes = new byte[n];
    for (int i = 0; i < n; i++) {
      int a = parseHexChar(s.charAt(i * 2));
      int b = parseHexChar(s.charAt(i * 2 + 1));
      if (a < 0 || b < 0)
        throw fail("Bad hex byte: " + quote(substring(s, i * 2, i * 2 + 2)) + " at " + i * 2 + "/" + l(s));
      bytes[i] = (byte) ((a << 4) | b);
    }
    return bytes;
  }

  static public byte[] loadBinaryFilePart(File file, long start, long end) {
    try {
      if (file == null)
        return null;
      RandomAccessFile raf = new RandomAccessFile(file, "r");
      int n = toInt(min(raf.length(), end - start));
      byte[] buffer = new byte[n];
      try {
        raf.seek(start);
        raf.readFully(buffer, 0, n);
        return buffer;
      } finally {
        raf.close();
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public int indexOfIgnoreCase_manual(String a, String b) {
    return indexOfIgnoreCase_manual(a, b, 0);
  }

  static public int indexOfIgnoreCase_manual(String a, String b, int i) {
    int la = strL(a), lb = strL(b);
    if (la < lb)
      return -1;
    int n = la - lb;
    loop: for (; i <= n; i++) {
      for (int j = 0; j < lb; j++) {
        char c1 = a.charAt(i + j), c2 = b.charAt(j);
        if (!eqic(c1, c2))
          continue loop;
      }
      return i;
    }
    return -1;
  }

  static public Rect toRect(Rectangle r) {
    return r == null ? null : new Rect(r);
  }

  static public Rect toRect(RectangularShape r) {
    return r == null ? null : toRect(r.getBounds());
  }

  static public Rect toRect(Rect r) {
    return r;
  }

  static public File standardLogFile() {
    return getProgramFile("log");
  }

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

  static public void logQuoted(File logFile, String line) {
    appendToFile(logFile, quote(line) + "\n");
  }

  static public JTextArea enableWordWrapForTextArea(JTextArea ta) {
    return enableWordWrapForTextArea(ta, true);
  }

  static public JTextArea enableWordWrapForTextArea(JTextArea ta, boolean enabled) {
    if (ta != null) {
      swing(() -> {
        ta.setLineWrap(enabled);
        ta.setWrapStyleWord(true);
      });
    }
    return ta;
  }

  static public JTextArea jtextarea() {
    return jTextArea();
  }

  static public JTextArea jtextarea(String text) {
    return jTextArea(text);
  }

  static public float getSwingFontScale() {
    return or((Float) vm_generalMap_get("swingFontScale_value"), 1f);
  }

  static public String localCourierFontName() {
    return isLinux() ? "Courier" : "Courier New";
  }

  static public <A extends JComponent> A withTypeWriterFont(A c) {
    return setFont(c, typeWriterFont());
  }

  static public Rect screenBounds_safe(int iScreen) {
    return screenBounds(min(iScreen, screenCount() - 1));
  }

  static public IF0<Integer> preferredScreen;

  static public int preferredScreen() {
    return preferredScreen != null ? preferredScreen.get() : preferredScreen_base();
  }

  final static public int preferredScreen_fallback(IF0<Integer> _f) {
    return _f != null ? _f.get() : preferredScreen_base();
  }

  static public int preferredScreen_base() {
    return 0;
  }

  static public List vmBus_queryAll(String msg, Object... args) {
    Object arg = vmBus_wrapArgs(args);
    List out = new ArrayList();
    for (Object o : unnullForIteration(vm_busListeners_live())) addIfNotNull(out, pcallF(o, msg, arg));
    for (Object o : unnullForIteration(vm_busListenersByMessage_live().get(msg))) addIfNotNull(out, pcallF(o, msg, arg));
    return out;
  }

  static public double parseDouble(String s) {
    return empty(s) ? 0.0 : Double.parseDouble(s);
  }

  static public Throwable getException(Runnable r) {
    try {
      callF(r);
      return null;
    } catch (Throwable e) {
      return e;
    }
  }

  static public List<String> htmlcoarsetok(String s) {
    List<String> tok = new ArrayList();
    int l = s == null ? 0 : s.length();
    int i = 0;
    while (i < l) {
      int j = i;
      char c;
      while (j < l) {
        if (s.charAt(j) != '<')
          ++j;
        else if (s.substring(j, Math.min(j + 4, l)).equals("<!--")) {
          j = j + 3;
          do ++j; while (j < l && !s.substring(j, Math.min(j + 3, l)).equals("-->"));
          j = Math.min(j + 3, l);
        } else {
          char d = charAt(s, j + 1);
          if (d == '/' || isLetter(d))
            break;
          else
            ++j;
        }
      }
      tok.add(s.substring(i, j));
      i = j;
      if (i >= l)
        break;
      c = s.charAt(i);
      if (c == '<') {
        ++j;
        while (j < l && s.charAt(j) != '>') ++j;
        if (j < l)
          ++j;
      }
      tok.add(s.substring(i, j));
      i = j;
    }
    if ((tok.size() & 1) == 0)
      tok.add("");
    return tok;
  }

  static public String[][] htmldecode_escapes() {
    return htmldecode_ESCAPES;
  }

  static final public String[][] htmldecode_ESCAPES = { { "\"", "quot" }, { "&", "amp" }, { "<", "lt" }, { ">", "gt" }, { "\u00A0", "nbsp" }, { "\u00A1", "iexcl" }, { "\u00A2", "cent" }, { "\u00A3", "pound" }, { "\u00A4", "curren" }, { "\u00A5", "yen" }, { "\u00A6", "brvbar" }, { "\u00A7", "sect" }, { "\u00A8", "uml" }, { "\u00A9", "copy" }, { "\u00AA", "ordf" }, { "\u00AB", "laquo" }, { "\u00AC", "not" }, { "\u00AD", "shy" }, { "\u00AE", "reg" }, { "\u00AF", "macr" }, { "\u00B0", "deg" }, { "\u00B1", "plusmn" }, { "\u00B2", "sup2" }, { "\u00B3", "sup3" }, { "\u00B4", "acute" }, { "\u00B5", "micro" }, { "\u00B6", "para" }, { "\u00B7", "middot" }, { "\u00B8", "cedil" }, { "\u00B9", "sup1" }, { "\u00BA", "ordm" }, { "\u00BB", "raquo" }, { "\u00BC", "frac14" }, { "\u00BD", "frac12" }, { "\u00BE", "frac34" }, { "\u00BF", "iquest" }, { "\u00C0", "Agrave" }, { "\u00C1", "Aacute" }, { "\u00C2", "Acirc" }, { "\u00C3", "Atilde" }, { "\u00C4", "Auml" }, { "\u00C5", "Aring" }, { "\u00C6", "AElig" }, { "\u00C7", "Ccedil" }, { "\u00C8", "Egrave" }, { "\u00C9", "Eacute" }, { "\u00CA", "Ecirc" }, { "\u00CB", "Euml" }, { "\u00CC", "Igrave" }, { "\u00CD", "Iacute" }, { "\u00CE", "Icirc" }, { "\u00CF", "Iuml" }, { "\u00D0", "ETH" }, { "\u00D1", "Ntilde" }, { "\u00D2", "Ograve" }, { "\u00D3", "Oacute" }, { "\u00D4", "Ocirc" }, { "\u00D5", "Otilde" }, { "\u00D6", "Ouml" }, { "\u00D7", "times" }, { "\u00D8", "Oslash" }, { "\u00D9", "Ugrave" }, { "\u00DA", "Uacute" }, { "\u00DB", "Ucirc" }, { "\u00DC", "Uuml" }, { "\u00DD", "Yacute" }, { "\u00DE", "THORN" }, { "\u00DF", "szlig" }, { "\u00E0", "agrave" }, { "\u00E1", "aacute" }, { "\u00E2", "acirc" }, { "\u00E3", "atilde" }, { "\u00E4", "auml" }, { "\u00E5", "aring" }, { "\u00E6", "aelig" }, { "\u00E7", "ccedil" }, { "\u00E8", "egrave" }, { "\u00E9", "eacute" }, { "\u00EA", "ecirc" }, { "\u00EB", "euml" }, { "\u00EC", "igrave" }, { "\u00ED", "iacute" }, { "\u00EE", "icirc" }, { "\u00EF", "iuml" }, { "\u00F0", "eth" }, { "\u00F1", "ntilde" }, { "\u00F2", "ograve" }, { "\u00F3", "oacute" }, { "\u00F4", "ocirc" }, { "\u00F5", "otilde" }, { "\u00F6", "ouml" }, { "\u00F7", "divide" }, { "\u00F8", "oslash" }, { "\u00F9", "ugrave" }, { "\u00FA", "uacute" }, { "\u00FB", "ucirc" }, { "\u00FC", "uuml" }, { "\u00FD", "yacute" }, { "\u00FE", "thorn" }, { "\u00FF", "yuml" }, { "\u2013", "ndash" }, { "\u2018", "lsquo" }, { "\u2019", "rsquo" }, { "\u201D", "rdquo" }, { "\u201C", "ldquo" }, { "\u2014", "mdash" }, { "'", "apos" } };

  static public String collapseWord(String s) {
    if (s == null)
      return "";
    StringBuilder buf = new StringBuilder();
    for (int i = 0; i < l(s); i++) if (i == 0 || !charactersEqualIC(s.charAt(i), s.charAt(i - 1)))
      buf.append(s.charAt(i));
    return buf.toString();
  }

  static public List<String> toLowerCase(List<String> strings) {
    List<String> x = new ArrayList();
    for (String s : strings) x.add(s.toLowerCase());
    return x;
  }

  static public String[] toLowerCase(String[] strings) {
    String[] x = new String[l(strings)];
    for (int i = 0; i < l(strings); i++) x[i] = strings[i].toLowerCase();
    return x;
  }

  static public String toLowerCase(String s) {
    return s == null ? "" : s.toLowerCase();
  }

  static public String firstWord2(String s) {
    s = xltrim(s);
    if (empty(s))
      return "";
    if (isLetterOrDigit(first(s)))
      return takeCharsWhile(__41 -> isLetterOrDigit(__41), s);
    else
      return "" + first(s);
  }

  static public List<String> javaTok_noMLS(String s) {
    ArrayList<String> tok = new ArrayList();
    int l = s == null ? 0 : s.length();
    int i = 0, n = 0;
    while (i < l) {
      int j = i;
      char c, d;
      while (j < l) {
        c = s.charAt(j);
        d = j + 1 >= l ? '\0' : s.charAt(j + 1);
        if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
          ++j;
        else if (c == '/' && d == '*') {
          do ++j; while (j < l && !s.substring(j, Math.min(j + 2, l)).equals("*/"));
          j = Math.min(j + 2, l);
        } else if (c == '/' && d == '/') {
          do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
        } else
          break;
      }
      tok.add(javaTok_substringN(s, i, j));
      ++n;
      i = j;
      if (i >= l)
        break;
      c = s.charAt(i);
      d = i + 1 >= l ? '\0' : s.charAt(i + 1);
      if (c == '\'' || c == '"') {
        char opener = c;
        ++j;
        while (j < l) {
          int c2 = s.charAt(j);
          if (c2 == opener || c2 == '\n' && opener == '\'') {
            ++j;
            break;
          } else if (c2 == '\\' && j + 1 < l)
            j += 2;
          else
            ++j;
        }
      } else if (Character.isJavaIdentifierStart(c))
        do ++j; while (j < l && Character.isJavaIdentifierPart(s.charAt(j)));
      else if (Character.isDigit(c)) {
        do ++j; while (j < l && Character.isDigit(s.charAt(j)));
        if (j < l && s.charAt(j) == 'L')
          ++j;
      } else
        ++j;
      tok.add(javaTok_substringC(s, i, j));
      ++n;
      i = j;
    }
    if ((tok.size() % 2) == 0)
      tok.add("");
    return tok;
  }

  static public BufferedReader bufferedReader(Reader r) {
    return bufferedReader(r, 8192);
  }

  static public BufferedReader bufferedReader(Reader r, int bufSize) {
    if (r == null)
      return null;
    return r instanceof BufferedReader ? (BufferedReader) r : _registerIOWrap(new BufferedReader(r, bufSize), r);
  }

  static public BufferedReader bufferedReader(File f) {
    return utf8bufferedReader(f);
  }

  static public <A extends AutoCloseable> A holdResource(IResourceHolder holder, A a) {
    {
      if (holder != null)
        holder.add(a);
    }
    return a;
  }

  static public <A> CloseableIterableIterator<A> iteratorFromFunction_f0_autoCloseable(final F0<A> f, final AutoCloseable closeable) {
    class IFF2 extends CloseableIterableIterator<A> {

      public A a;

      public boolean done = false;

      public boolean hasNext() {
        getNext();
        return !done;
      }

      public A next() {
        getNext();
        if (done)
          throw fail();
        A _a = a;
        a = null;
        return _a;
      }

      public void getNext() {
        if (done || a != null)
          return;
        a = f.get();
        done = a == null;
      }

      public void close() throws Exception {
        if (closeable != null)
          closeable.close();
      }
    }
    ;
    return new IFF2();
  }

  static public String readLineFromReaderWithClose(BufferedReader r) {
    try {
      String s = r.readLine();
      if (s == null)
        r.close();
      return s;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public AutoCloseable _wrapIOCloseable(final AutoCloseable c) {
    return c == null ? null : new AutoCloseable() {

      public String toString() {
        return "c.close();\r\n    _registerIO(c, null, false);";
      }

      public void close() throws Exception {
        c.close();
        _registerIO(c, null, false);
      }
    };
  }

  static public <A> A _registerIOWrap(A wrapper, Object wrapped) {
    return wrapper;
  }

  static public FileInputStream newFileInputStream(File path) throws IOException {
    return newFileInputStream(path.getPath());
  }

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

  static public int gzInputStream_defaultBufferSize = 65536;

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

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

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

  static public GZIPInputStream gzInputStream(InputStream in, int bufferSize) {
    try {
      return _registerIOWrap(new GZIPInputStream(in, gzInputStream_defaultBufferSize), in);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public void copyStream(InputStream in, OutputStream out) {
    try {
      byte[] buf = new byte[65536];
      while (true) {
        int n = in.read(buf);
        if (n <= 0)
          return;
        out.write(buf, 0, n);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public void _registerIO(Object object, String path, boolean opened) {
  }

  static public String actualUserHome_value;

  static public String actualUserHome() {
    if (actualUserHome_value == null) {
      if (isAndroid())
        actualUserHome_value = "/storage/emulated/0/";
      else
        actualUserHome_value = System.getProperty("user.home");
    }
    return actualUserHome_value;
  }

  static public File actualUserHome(String sub) {
    return newFile(new File(actualUserHome()), sub);
  }

  static public Charset utf8charset_cache;

  static public Charset utf8charset() {
    if (utf8charset_cache == null)
      utf8charset_cache = utf8charset_load();
    return utf8charset_cache;
  }

  static public Charset utf8charset_load() {
    return Charset.forName("UTF-8");
  }

  static public String _computerID;

  static public Lock computerID_lock = lock();

  public static String computerID() {
    if (_computerID == null) {
      Lock __0 = computerID_lock;
      lock(__0);
      try {
        if (_computerID != null)
          return _computerID;
        File file = computerIDFile();
        _computerID = loadTextFile(file.getPath());
        if (_computerID == null) {
          _computerID = loadTextFile(userDir(".tinybrain/computer-id"));
          if (_computerID == null)
            _computerID = makeRandomID(12, new SecureRandom());
          saveTextFile(file, _computerID);
        }
      } finally {
        unlock(__0);
      }
    }
    return _computerID;
  }

  static public TreeSet<String> caseInsensitiveSet_treeSet() {
    return new TreeSet(caseInsensitiveComparator());
  }

  static public TreeSet<String> caseInsensitiveSet_treeSet(Collection<String> c) {
    return toCaseInsensitiveSet_treeSet(c);
  }

  static public <A> A[] newObjectArrayOfSameType(A[] a) {
    return newObjectArrayOfSameType(a, a.length);
  }

  static public <A> A[] newObjectArrayOfSameType(A[] a, int n) {
    return (A[]) Array.newInstance(a.getClass().getComponentType(), n);
  }

  static public Method findMethod(Object o, String method, Object... args) {
    return findMethod_cached(o, method, args);
  }

  static public 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 public <A> List<A> dropFirstAndLast(int n, List<A> l) {
    return cloneSubList(l, n, l(l) - n);
  }

  static public <A> List<A> dropFirstAndLast(int m, int n, List<A> l) {
    return cloneSubList(l, m, l(l) - n);
  }

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

  static public String dropFirstAndLast(String s) {
    return substring(s, 1, l(s) - 1);
  }

  static public int findEndOfCurlyBracketPart(List<String> cnc, int i) {
    int j = i + 2, level = 1;
    while (j < cnc.size()) {
      if (eq(cnc.get(j), "{"))
        ++level;
      else if (eq(cnc.get(j), "}"))
        --level;
      if (level == 0)
        return j + 1;
      ++j;
    }
    return cnc.size();
  }

  static public <A> List<A> replace(List<A> l, A a, A b) {
    for (int i = 0; i < l(l); i++) if (eq(l.get(i), a))
      l.set(i, b);
    return l;
  }

  static public <A> List<A> replace(A a, A b, List<A> l) {
    return replace(l, a, b);
  }

  static public String replace(String s, String a, String b) {
    return s == null ? null : a == null || b == null ? s : s.replace(a, b);
  }

  static public String replace(String s, char a, char b) {
    return s == null ? null : s.replace(a, b);
  }

  static public String htmlencode2(String s) {
    return htmlencode_noQuotes(s);
  }

  static public int indexOfNonDigit(String s) {
    int n = l(s);
    for (int i = 0; i < n; i++) if (!isDigit(s.charAt(i)))
      return i;
    return -1;
  }

  static public Map synchroMap() {
    return synchroHashMap();
  }

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

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

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

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

  static public String replaceExtension(String name, String extNew) {
    return replaceExtension(name, fileExtension(name), extNew);
  }

  static public List<String> mapToLines(Map map) {
    List<String> l = new ArrayList();
    for (Object key : keys(map)) l.add(str(key) + " = " + str(map.get(key)));
    return l;
  }

  static public String mapToLines(Map map, Object f) {
    return lines(map(map, f));
  }

  static public String mapToLines(Object f, Map map) {
    return lines(map(map, f));
  }

  static public String mapToLines(Object f, Iterable l) {
    return lines(map(f, l));
  }

  static public <A> String mapToLines(Iterable<A> l, IF1<A, String> f) {
    return mapToLines((Object) f, l);
  }

  static public <A> String mapToLines(IF1<A, String> f, Iterable<A> l) {
    return mapToLines((Object) f, l);
  }

  static public <A, B> String mapToLines(Map<A, B> map, IF2<A, B, String> f) {
    return lines(map(map, f));
  }

  static public <A> String mapToLines(IF1<A, String> f, A data1, A... moreData) {
    return lines(map(f, data1, moreData));
  }

  static public Dimension toDimension(WidthAndHeight wh) {
    return wh == null ? null : new Dimension(wh.getWidth(), wh.getHeight());
  }

  static public Rect screenBounds(GraphicsDevice screen) {
    return screen == null ? null : toRect(screen.getDefaultConfiguration().getBounds());
  }

  static public Rect screenBounds(int iScreen) {
    return screenBounds(get(screenDevices(), iScreen));
  }

  static public String getProgramName_cache;

  static public String getProgramName() {
    Lock __0 = downloadLock();
    lock(__0);
    try {
      if (getProgramName_cache == null)
        getProgramName_cache = getSnippetTitleOpt(programID());
      return getProgramName_cache;
    } finally {
      unlock(__0);
    }
  }

  static public void _onLoad_getProgramName() {
    {
      startThread(new Runnable() {

        public void run() {
          try {
            getProgramName();
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "getProgramName();";
        }
      });
    }
  }

  static public void standardTitlePopupMenu(final JFrame frame) {
    if (!isSubstanceLAF())
      return;
    titlePopupMenu(frame, new VF1<JPopupMenu>() {

      public void get(JPopupMenu menu) {
        try {
          boolean alwaysOnTop = frame.isAlwaysOnTop();
          menu.add(jmenuItem("Restart Program", new Runnable() {

            public void run() {
              try {
                restart();
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "restart();";
            }
          }));
          menu.add(jmenuItem("Duplicate Program", new Runnable() {

            public void run() {
              try {
                duplicateThisProgram();
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "duplicateThisProgram();";
            }
          }));
          menu.add(jmenuItem("Show Console", new Runnable() {

            public void run() {
              try {
                showConsole();
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "showConsole();";
            }
          }));
          menu.add(jCheckBoxMenuItem("Always On Top", alwaysOnTop, new Runnable() {

            public void run() {
              try {
                toggleAlwaysOnTop(frame);
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "toggleAlwaysOnTop(frame)";
            }
          }));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "bool alwaysOnTop = frame.isAlwaysOnTop();\r\n    ifndef standardTitlePopupMenu_...";
      }
    });
  }

  static public Integer centerX(Rect r) {
    return rectCenterX(r);
  }

  static public int random_incl(int min, int max) {
    return random_incl(min, max, defaultRandomizer());
  }

  static public int random_incl(int min, int max, Random random) {
    return random(min, max + 1, random);
  }

  static public int random_incl(int max) {
    return random(0, max + 1);
  }

  static public Integer centerY(Rect r) {
    return rectCenterY(r);
  }

  static public void autoVMExit() {
    call(getJavaX(), "autoVMExit");
  }

  static public Map synchronizedMap() {
    return synchroMap();
  }

  static public <A, B> Map<A, B> synchronizedMap(Map<A, B> map) {
    return synchroMap(map);
  }

  static public ClassLoader classLoaderForObject(Object o) {
    if (o instanceof ClassLoader)
      return ((ClassLoader) o);
    if (o == null)
      return null;
    return _getClass(o).getClassLoader();
  }

  static public String classNameToVM(String name) {
    return name.replace(".", "$");
  }

  static public JMenuItem directJMenuItem(Action a) {
    return new JMenuItem(a) {

      public Dimension getMaximumSize() {
        return new Dimension(super.getPreferredSize().width, super.getMaximumSize().height);
      }
    };
  }

  static public JMenuItem directJMenuItem(String text, Object action) {
    return directJMenuItem(abstractAction(text, action));
  }

  static public JMenuBar addMenuBar(final Component c) {
    return swing(new F0<JMenuBar>() {

      public JMenuBar get() {
        try {
          RootPaneContainer f = getPossiblyInternalFrame(c);
          if (f == null)
            return null;
          JMenuBar bar = (JMenuBar) (call(f, "getJMenuBar"));
          if (bar == null) {
            setMenuBar(f, bar = new JMenuBar());
            revalidate((Component) f);
          }
          return bar;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "RootPaneContainer f = getPossiblyInternalFrame(c);\r\n    if (f == null) null;\r...";
      }
    });
  }

  static public IMeta initMetaOfJComponent(JComponent c) {
    if (c == null)
      return null;
    IMeta meta = (IMeta) (c.getClientProperty(IMeta.class));
    if (meta == null)
      c.putClientProperty(IMeta.class, meta = new Meta());
    return meta;
  }

  static public <A> IF0<A> f0ToIF0(F0<A> f) {
    return f == null ? null : () -> f.get();
  }

  static public ThreadLocal<Random> customRandomizerForThisThread_tl = new ThreadLocal();

  static public ThreadLocal<Random> customRandomizerForThisThread_tl() {
    return customRandomizerForThisThread_tl;
  }

  static public TokCondition toTokCondition(ITokCondition condition) {
    return condition == null ? null : condition instanceof TokCondition ? (TokCondition) condition : new TokCondition() {

      public boolean get(List<String> tok, int i) {
        return condition.get(tok, i);
      }
    };
  }

  static public 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 public String[] toStringArray(Object o) {
    if (o instanceof String[])
      return (String[]) o;
    else if (o instanceof Collection)
      return toStringArray((Collection<String>) o);
    else
      throw fail("Not a collection or array: " + getClassName(o));
  }

  static public List<String> codeTokensOnly(List<String> tok) {
    int n = l(tok);
    List<String> l = emptyList(n / 2);
    for (int i = 1; i < n; i += 2) l.add(tok.get(i));
    return l;
  }

  static public IF0<PingSource> ping_v3_pingSourceMaker_cache;

  static public IF0<PingSource> ping_v3_pingSourceMaker() {
    if (ping_v3_pingSourceMaker_cache == null)
      ping_v3_pingSourceMaker_cache = ping_v3_pingSourceMaker_load();
    return ping_v3_pingSourceMaker_cache;
  }

  static public IF0<PingSource> ping_v3_pingSourceMaker_load() {
    return or((IF0) vm_generalMap_get("ping_v3_pingSourceMaker"), () -> null);
  }

  static public int[] subIntArray(int[] b, int start) {
    return subIntArray(b, start, l(b));
  }

  static public int[] subIntArray(int[] b, int start, int end) {
    start = max(start, 0);
    end = min(end, l(b));
    if (start == 0 && end == l(b))
      return b;
    if (start >= end)
      return new int[0];
    int[] x = new int[end - start];
    System.arraycopy(b, start, x, 0, end - start);
    return x;
  }

  static public int[] subIntArray(int[] a, IntRange r) {
    return r == null ? null : subIntArray(a, r.start, r.end);
  }

  static public short[] subShortArray(short[] b, int start, int end) {
    start = max(start, 0);
    end = min(end, l(b));
    if (start == 0 && end == l(b))
      return b;
    if (start >= end)
      return new short[0];
    short[] x = new short[end - start];
    System.arraycopy(b, start, x, 0, end - start);
    return x;
  }

  static public byte[] subByteArray(byte[] b, int start) {
    return subByteArray(b, start, l(b));
  }

  static public byte[] subByteArray(byte[] b, int start, int end) {
    start = max(start, 0);
    end = min(end, l(b));
    if (start == 0 && end == l(b))
      return b;
    if (start >= end)
      return new byte[0];
    byte[] x = new byte[end - start];
    System.arraycopy(b, start, x, 0, end - start);
    return x;
  }

  static public byte[] subByteArray(byte[] b, IntRange r) {
    return r == null ? null : subByteArray(b, r.start, r.end);
  }

  static public double[] subDoubleArray(double[] b, int start) {
    return subDoubleArray(b, start, l(b));
  }

  static public double[] subDoubleArray(double[] b, int start, int end) {
    start = max(start, 0);
    end = min(end, l(b));
    if (start == 0 && end == l(b))
      return b;
    if (start >= end)
      return new double[0];
    double[] x = new double[end - start];
    System.arraycopy(b, start, x, 0, end - start);
    return x;
  }

  static public List<String> getJavaModifiers_list = litlist("static", "abstract", "public", "private", "protected", "final", "native", "volatile", "synchronized", "transient", "default");

  static public List<String> getJavaModifiers() {
    return getJavaModifiers_list;
  }

  static public LinkedHashMap linkedHashMap() {
    return new LinkedHashMap();
  }

  static public List<String> toLinesFullTrim_java(String text) {
    return tlft(joinLines(map(__42 -> javaDropComments(__42), tlft(text))));
  }

  static public String formatWithThousandsSeparator(long l) {
    return NumberFormat.getInstance(new Locale("en_US")).format(l);
  }

  static public <A> int indexOfOneOf(List<A> l, int i, A... x) {
    return indexOfAny(l, i, x);
  }

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

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

  static public int indexOfOneOf(String s, int i, String chars) {
    return indexOfAny(s, i, chars);
  }

  static public boolean boolOptParam(ThreadLocal<Boolean> tl) {
    return isTrue(optPar(tl));
  }

  static public boolean boolOptParam(Object[] __, String name) {
    return isTrue(optParam(__, name));
  }

  static public boolean boolOptParam(String name, Object[] __) {
    return boolOptParam(__, name);
  }

  static public boolean boolOptParam(String name, Map __) {
    return isTrue(optPar(name, __));
  }

  static public int scanToEndOfInitializer2(List<String> tok, int i) {
    int level = 0;
    while (i < l(tok)) {
      String t = tok.get(i);
      if (eqOneOf(t, "(", "{"))
        ++level;
      else if (level > 0 && eqOneOf(t, ")", "}"))
        --level;
      else if (level == 0 && eqOneOf(tok.get(i), ";", ",", ")", "}"))
        return i - 1;
      i++;
    }
    return i;
  }

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

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

  static public boolean assertVerbose() {
    return isTrue(assertVerbose_value.get());
  }

  static public <A> A assertEqualsVerbose(Object x, A y) {
    assertEqualsVerbose((String) null, x, y);
    return y;
  }

  static public <A> A assertEqualsVerbose(String msg, Object x, A y) {
    if (!eq(x, y)) {
      throw fail((nempty(msg) ? msg + ": " : "") + "expected: " + x + ", got: " + y);
    } else
      print("OK" + (empty(msg) ? "" : " " + msg) + ": " + (x));
    return y;
  }

  static public String nullIfEmpty(String s) {
    return isEmpty(s) ? null : s;
  }

  static public <A, B> Map<A, B> nullIfEmpty(Map<A, B> map) {
    return isEmpty(map) ? null : map;
  }

  static public <A> List<A> nullIfEmpty(List<A> l) {
    return isEmpty(l) ? null : l;
  }

  static public String reverseString(String s) {
    return empty(s) ? s : new StringBuilder(s).reverse().toString();
  }

  static public String rejoinTok(String original, List<String> tok) {
    if (tok == null)
      return null;
    if (joinedEquals(tok, original))
      return original;
    return join(tok);
  }

  static public boolean isFile(File f) {
    return f != null && f.isFile();
  }

  static public boolean isFile(String path) {
    return isFile(newFile(path));
  }

  static public <A> List<A> newSubList(List<A> l, int startIndex, int endIndex) {
    return cloneList(subList(l, startIndex, endIndex));
  }

  static public <A> List<A> newSubList(List<A> l, int startIndex) {
    return cloneList(subList(l, startIndex));
  }

  static public String imageServerLink(String md5OrID) {
    if (possibleMD5(md5OrID))
      return "https://botcompany.de/images/md5/" + md5OrID;
    return imageServerLink(parseSnippetID(md5OrID));
  }

  static public String imageServerLink(long id) {
    return "https://botcompany.de/images/" + id;
  }

  static public boolean networkAllowanceTest(String url) {
    return isAllowed("networkAllowanceTest", url);
  }

  static public void sleepSeconds(double s) {
    if (s > 0)
      sleep(round(s * 1000));
  }

  static public <A> A printWithTime(A a) {
    return printWithTime("", a);
  }

  static public <A> A printWithTime(String s, A a) {
    print(hmsWithColons() + ": " + s, a);
    return a;
  }

  static public Map vm_generalSubMap(Object name) {
    synchronized (vm_generalMap()) {
      Map map = (Map) (vm_generalMap_get(name));
      if (map == null)
        vm_generalMap_put(name, map = synchroMap());
      return map;
    }
  }

  static public InputStream urlConnection_getInputStream(URLConnection con) throws IOException {
    return con.getInputStream();
  }

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

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

  static public Matcher regexpMatcher(String pat, String s) {
    return compileRegexp(pat).matcher(unnull(s));
  }

  static public Matcher regexpMatcher(java.util.regex.Pattern pat, String s) {
    return pat.matcher(unnull(s));
  }

  static public URLConnection setURLConnectionDefaultTimeouts(URLConnection con, long timeout) {
    if (con.getConnectTimeout() == 0) {
      con.setConnectTimeout(toInt(timeout));
      if (con.getConnectTimeout() != timeout)
        print("Warning: URL connect timeout not set by JDK.");
    }
    if (con.getReadTimeout() == 0) {
      con.setReadTimeout(toInt(timeout));
      if (con.getReadTimeout() != timeout)
        print("Warning: URL read timeout not set by JDK.");
    }
    return con;
  }

  static public File muricaPasswordFile() {
    return new File(javaxSecretDir(), "murica/muricaPasswordFile");
  }

  static public int roundDownTo(int n, int x) {
    return x / n * n;
  }

  static public long roundDownTo(long n, long x) {
    return x / n * n;
  }

  static public double roundDownTo(double n, double x) {
    return floor(x / n) * n;
  }

  static public int shorten_default = 100;

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

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

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

  static public String shorten(int max, CharSequence s) {
    return shorten(s, max);
  }

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

  static public Lock appendToFile_lock = lock();

  static public boolean appendToFile_keepOpen = false;

  static public HashMap<String, Writer> appendToFile_writers = new HashMap();

  static public void appendToFile(String path, String s) {
    try {
      Lock __0 = appendToFile_lock;
      lock(__0);
      try {
        mkdirsForFile(new File(path));
        path = getCanonicalPath(path);
        Writer writer = appendToFile_writers.get(path);
        if (writer == null) {
          writer = new BufferedWriter(new OutputStreamWriter(newFileOutputStream(path, true), "UTF-8"));
          if (appendToFile_keepOpen)
            appendToFile_writers.put(path, writer);
        }
        writer.write(s);
        if (!appendToFile_keepOpen)
          writer.close();
      } finally {
        unlock(__0);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public void appendToFile(File path, String s) {
    if (path != null)
      appendToFile(path.getPath(), s);
  }

  static public void cleanMeUp_appendToFile() {
    AutoCloseable __3 = tempCleaningUp();
    try {
      Lock __1 = appendToFile_lock;
      lock(__1);
      try {
        closeAllWriters(values(appendToFile_writers));
        appendToFile_writers.clear();
      } finally {
        unlock(__1);
      }
    } finally {
      _close(__3);
    }
  }

  static public JTextArea jTextArea() {
    return jTextArea("");
  }

  static public JTextArea jTextArea(final String text) {
    return jTextAreaWithUndo(text);
  }

  static public Cache<Boolean> isLinux_cache = new Cache<>(() -> isLinux_load());

  static public boolean isLinux() {
    return isLinux_cache.get();
  }

  static public Boolean isLinux_load() {
    return !isWindows() && !isMac() && !isAndroid();
  }

  static public <A extends JComponent> A setFont(final Font font, final A a) {
    if (a != null) {
      swing(() -> {
        a.setFont(font);
      });
    }
    return a;
  }

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

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

  static public int screenCount() {
    return l(GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices());
  }

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

  static public <A> void addIfNotNull(MultiSet<A> ms, A a) {
    if (a != null && ms != null)
      ms.add(a);
  }

  static public boolean charactersEqualIC(char c1, char c2) {
    if (c1 == c2)
      return true;
    char u1 = Character.toUpperCase(c1);
    char u2 = Character.toUpperCase(c2);
    if (u1 == u2)
      return true;
    return Character.toLowerCase(u1) == Character.toLowerCase(u2);
  }

  static public String xltrim(String s) {
    int i = 0, n = l(s);
    while (i < n && contains(" \t\r\n", s.charAt(i))) ++i;
    return substr(s, i);
  }

  static public String takeCharsWhile(String s, Object pred) {
    int i = 0;
    while (i < l(s) && isTrue(callF(pred, s.charAt(i)))) ++i;
    return substring(s, 0, i);
  }

  static public String takeCharsWhile(IF1<Character, Boolean> f, String s) {
    return takeCharsWhile(s, f);
  }

  static public File computerIDFile() {
    return javaxDataDir("Basic Info/computer-id.txt");
  }

  static public Comparator<String> caseInsensitiveComparator() {
    return betterCIComparator();
  }

  static public TreeSet<String> toCaseInsensitiveSet_treeSet(Iterable<String> c) {
    if (isCISet(c))
      return (TreeSet) c;
    TreeSet<String> set = caseInsensitiveSet_treeSet();
    addAll(set, c);
    return set;
  }

  static public TreeSet<String> toCaseInsensitiveSet_treeSet(String... x) {
    TreeSet<String> set = caseInsensitiveSet_treeSet();
    addAll(set, x);
    return set;
  }

  static public String htmlencode_noQuotes(String s) {
    if (s == null)
      return "";
    int n = s.length();
    StringBuilder out = null;
    for (int i = 0; i < n; i++) {
      char c = s.charAt(i);
      if (c == '<') {
        if (out == null)
          out = new StringBuilder(Math.max(16, n)).append(takeFirst(i, s));
        out.append("&lt;");
      } else if (c == '>') {
        if (out == null)
          out = new StringBuilder(Math.max(16, n)).append(takeFirst(i, s));
        out.append("&gt;");
      } else if (c > 127 || c == '&') {
        int cp = s.codePointAt(i);
        if (out == null)
          out = new StringBuilder(Math.max(16, n)).append(takeFirst(i, s));
        out.append("&#x");
        out.append(intToHex_flexLength(cp));
        out.append(';');
        i += Character.charCount(cp) - 1;
      } else {
        if (out != null)
          out.append(c);
      }
    }
    return out == null ? s : out.toString();
  }

  static public boolean isDigit(char c) {
    return Character.isDigit(c);
  }

  static public String fileExtension(File f) {
    if (f == null)
      return null;
    return fileExtension(f.getName());
  }

  static public String fileExtension(String s) {
    return substring(s, smartLastIndexOf(s, '.'));
  }

  static public String dropSuffixIC(String suffix, String s) {
    return s == null ? null : ewic(s, suffix) ? s.substring(0, l(s) - l(suffix)) : s;
  }

  static public String addPrefixOptIfNempty(String prefix, String s) {
    return addPrefixIfNotEmpty2(prefix, s);
  }

  static public List<GraphicsDevice> screenDevices() {
    return asList(GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices());
  }

  static public Lock downloadLock_lock = fairLock();

  static public Lock downloadLock() {
    return downloadLock_lock;
  }

  static public String getSnippetTitleOpt(String s) {
    try {
      return isSnippetID(s) ? getSnippetTitle(s) : s;
    } catch (Throwable __e) {
      pcallFail(__e);
    }
    return s;
  }

  static public boolean isSubstanceLAF() {
    return substanceLookAndFeelEnabled();
  }

  static public boolean titlePopupMenu(final Component c, final Object menuMaker) {
    JComponent titleBar = getTitlePaneComponent(getPossiblyInternalFrame(c));
    if (titleBar == null) {
      print("Can't add title right click!");
      return false;
    } else {
      componentPopupMenu(titleBar, menuMaker);
      return true;
    }
  }

  static public void restart() {
    Object j = getJavaX();
    call(j, "cleanRestart", get(j, "fullArgs"));
  }

  static public void duplicateThisProgram() {
    nohupJavax(trim(programID() + " " + smartJoin((String[]) get(getJavaX(), "fullArgs"))));
  }

  static public void showConsole() {
    callOpt(get(javax(), "console"), "showConsole");
  }

  static public JCheckBoxMenuItem jCheckBoxMenuItem(String text, boolean checked, final Object r) {
    final JCheckBoxMenuItem mi = swing(() -> new JCheckBoxMenuItem(text, checked));
    addActionListener(mi, new Runnable() {

      public void run() {
        try {
          callF(r, isChecked(mi));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "callF(r, isChecked(mi))";
      }
    });
    return mi;
  }

  static public JCheckBoxMenuItem jCheckBoxMenuItem(String text, boolean checked, IVF1<Boolean> r) {
    return jCheckBoxMenuItem(text, checked, (Object) r);
  }

  static public void toggleAlwaysOnTop(Window frame) {
    if (frame == null)
      return;
    {
      swing(() -> {
        frame.setAlwaysOnTop(!frame.isAlwaysOnTop());
      });
    }
  }

  static public Integer rectCenterX(Rect r) {
    return r == null ? null : r.x + r.w / 2;
  }

  static public Random defaultRandomizer() {
    return defaultRandomGenerator();
  }

  static public int random(int n) {
    return random(n, defaultRandomGenerator());
  }

  static public int random(int n, Random r) {
    return random(r, n);
  }

  static public long random(long n) {
    return random(n, defaultRandomGenerator());
  }

  static public long random(long n, Random r) {
    return random(r, n);
  }

  static public int random(Random r, int n) {
    return n <= 0 ? 0 : getRandomizer(r).nextInt(n);
  }

  static public long random(Random r, long n) {
    return n <= 0 ? 0 : getRandomizer(r).nextLong(n);
  }

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

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

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

  static public int random(int min, int max) {
    return min + random(max - min);
  }

  static public long random(long min, long max) {
    return min + random(max - min);
  }

  static public int random(int min, int max, Random r) {
    return random(r, min, max);
  }

  static public int random(Random r, int min, int max) {
    return min + random(r, max - min);
  }

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

  static public <A> A random(Collection<A> c) {
    if (c instanceof List)
      return random((List<A>) c);
    int i = random(l(c));
    return collectionGet(c, i);
  }

  static public int random(IntRange r) {
    return random(r.start, r.end);
  }

  static public <A, B> Pair<A, B> random(Map<A, B> map) {
    return entryToPair(random(entries(map)));
  }

  static public Integer rectCenterY(Rect r) {
    return r == null ? null : r.y + r.h / 2;
  }

  static public void setMenuBar(final JMenuBar mb, final RootPaneContainer f) {
    {
      swing(() -> {
        call(f, "setJMenuBar", mb);
        revalidate((Component) f);
      });
    }
  }

  static public void setMenuBar(RootPaneContainer f, JMenuBar mb) {
    setMenuBar(mb, f);
  }

  static public List<String> tlft(String s) {
    return toLinesFullTrim(s);
  }

  static public List<String> tlft(File f) {
    return toLinesFullTrim(f);
  }

  static public String joinLines(List<String> lines) {
    return fromLines(lines);
  }

  static public String joinLines(String glue, String text) {
    return join(glue, toLines(text));
  }

  static public String javaDropComments(String s) {
    return javaDropAllComments(s);
  }

  static public String appendColonIfNempty(String s) {
    return empty(s) ? "" : s + ": ";
  }

  static public boolean isEmpty(Collection c) {
    return c == null || c.isEmpty();
  }

  static public boolean isEmpty(File f) {
    return f == null || f.length() == 0;
  }

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

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

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

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

  static public boolean isEmpty(AppendableChain c) {
    return c == null;
  }

  static public boolean isEmpty(IntSize l) {
    return l == null || l.size() == 0;
  }

  static public boolean joinedEquals(List<String> tok, String s) {
    int idx = 0;
    for (String t : tok) {
      if (!regionMatches(t, 0, s, idx, l(t)))
        return false;
      idx += l(t);
    }
    return idx == l(s);
  }

  static public boolean possibleMD5(String s) {
    return isMD5(s);
  }

  static volatile public Object isAllowed_function;

  static volatile public boolean isAllowed_all = true;

  static public boolean isAllowed(String askingMethod, Object... args) {
    Object f = vm_generalMap_get("isAllowed_function");
    if (f != null && !isTrue(callF(f, askingMethod, args)))
      return false;
    return isAllowed_all || isTrue(callF(isAllowed_function, askingMethod, args));
  }

  static volatile public boolean sleep_noSleep = false;

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

  static public void sleep() {
    try {
      if (sleep_noSleep)
        throw fail("nosleep");
      print("Sleeping.");
      sleepQuietly();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public long round(double d) {
    return Math.round(d);
  }

  static public String round(String s) {
    return roundBracket(s);
  }

  static public Complex round(Complex c) {
    return new Complex(round(c.re), round(c.im));
  }

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

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

  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 public Map<String, java.util.regex.Pattern> compileRegexp_cache = syncMRUCache(10);

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

  static public double floor(double d) {
    return Math.floor(d);
  }

  static public int charDiff(char a, char b) {
    return (int) a - (int) b;
  }

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

  static public String getCanonicalPath(File f) {
    try {
      return f == null ? null : f.getCanonicalPath();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public String getCanonicalPath(String path) {
    return getCanonicalPath(newFile(path));
  }

  static public AutoCloseable tempCleaningUp() {
    AutoCloseable result = null;
    result = tempSetTL(ping_isCleanUpThread, true);
    return result;
  }

  static public void closeAllWriters(Collection<? extends Writer> l) {
    for (Writer w : unnull(l)) {
      try {
        w.close();
      } catch (Throwable __e) {
        pcallFail(__e);
      }
    }
  }

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

  static public Collection values(Object map) {
    return values((Map) map);
  }

  static public <A, B> Collection<B> values(MultiMap<A, B> mm) {
    return mm == null ? emptyList() : concatLists(values(mm.data));
  }

  static public JTextArea jTextAreaWithUndo() {
    return jTextAreaWithUndo("");
  }

  static public JTextArea jTextAreaWithUndo(final String text) {
    return jenableUndoRedo(swingNu(JTextArea.class, text));
  }

  public static boolean isWindows() {
    return System.getProperty("os.name").contains("Windows");
  }

  static public boolean isMac() {
    return System.getProperty("os.name").toLowerCase().contains("mac");
  }

  static public Map<String, Font> loadFont_cached_cache = new HashMap();

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

  static synchronized public Font loadFont_cached(String snippetID, float size) {
    try {
      return loadFont_cached(snippetID).deriveFont(size);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public String substr(String s, int x) {
    return substring(s, x);
  }

  static public String substr(String s, int x, int y) {
    return substring(s, x, y);
  }

  static public betterCIComparator_C betterCIComparator_instance;

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

  final static public class betterCIComparator_C implements Comparator<String> {

    public int compare(String s1, String s2) {
      if (s1 == null)
        return s2 == null ? 0 : -1;
      if (s2 == null)
        return 1;
      int n1 = s1.length();
      int n2 = s2.length();
      int min = Math.min(n1, n2);
      for (int i = 0; i < min; i++) {
        char c1 = s1.charAt(i);
        char c2 = s2.charAt(i);
        if (c1 != c2) {
          c1 = Character.toUpperCase(c1);
          c2 = Character.toUpperCase(c2);
          if (c1 != c2) {
            c1 = Character.toLowerCase(c1);
            c2 = Character.toLowerCase(c2);
            if (c1 != c2) {
              return c1 - c2;
            }
          }
        }
      }
      return n1 - n2;
    }
  }

  static public boolean isCISet(Iterable<String> l) {
    return l instanceof TreeSet && ((TreeSet) l).comparator() == caseInsensitiveComparator();
  }

  static public String intToHex_flexLength(int i) {
    return Integer.toHexString(i);
  }

  static public String addPrefixIfNotEmpty2(String prefix, String s) {
    return empty(s) ? "" : addPrefix(prefix, s);
  }

  static public String getSnippetTitle(String id) {
    if (id == null)
      return null;
    if (!isSnippetID(id))
      return "?";
    IResourceLoader rl = vm_getResourceLoader();
    if (rl != null)
      return rl.getSnippetTitle(id);
    return getSnippetTitle_noResourceLoader(id);
  }

  static public String getSnippetTitle_noResourceLoader(String id) {
    try {
      if (isLocalSnippetID(id))
        return localSnippetTitle(id);
      long parsedID = parseSnippetID(id);
      String url;
      if (isImageServerSnippet(parsedID))
        url = imageServerURL() + "title/" + parsedID + muricaCredentialsQuery();
      else if (isGeneralFileServerSnippet(parsedID))
        url = "http://butter.botcompany.de:8080/files/name/" + parsedID;
      else
        url = tb_mainServer() + "/tb-int/getfield.php?id=" + parsedID + "&field=title" + standardCredentials_noCookies();
      String title = trim(loadPageSilently(url));
      if (title != null)
        try {
          saveTextFileIfChanged(snippetTitle_cacheFile(id), title);
        } catch (Throwable __e) {
          print(exceptionToStringShort(__e));
        }
      return or(title, "?");
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  static public boolean substanceLookAndFeelEnabled() {
    return startsWith(getLookAndFeel(), "org.pushingpixels.");
  }

  static public JComponent getTitlePaneComponent(RootPaneContainer window) {
    if (window instanceof JInternalFrame)
      return getInternalFrameTitlePaneComponent((JInternalFrame) window);
    if (!substanceLookAndFeelEnabled() || window == null)
      return null;
    JRootPane rootPane = window.getRootPane();
    if (rootPane != null) {
      Object ui = rootPane.getUI();
      return (JComponent) call(ui, "getTitlePane");
    }
    return null;
  }

  static public void nohupJavax(final String javaxargs) {
    {
      startThread(new Runnable() {

        public void run() {
          try {
            call(hotwireOnce("#1008562"), "nohupJavax", javaxargs);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "call(hotwireOnce(\"#1008562\"), \"nohupJavax\", javaxargs);";
        }
      });
    }
  }

  static public void nohupJavax(final String javaxargs, final String vmArgs) {
    {
      startThread(new Runnable() {

        public void run() {
          try {
            call(hotwireOnce("#1008562"), "nohupJavax", javaxargs, vmArgs);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "call(hotwireOnce(\"#1008562\"), \"nohupJavax\", javaxargs, vmArgs);";
        }
      });
    }
  }

  static public String smartJoin(String[] args) {
    if (empty(args))
      return "";
    if (args.length == 1)
      return args[0];
    String[] a = new String[args.length];
    for (int i = 0; i < a.length; i++) a[i] = !isJavaIdentifier(args[i]) && !isQuoted(args[i]) ? quote(args[i]) : args[i];
    return join(" ", a);
  }

  static public String smartJoin(List<String> args) {
    return smartJoin(toStringArray(args));
  }

  static public void addActionListener(JTextField tf, final Runnable action) {
    onEnter(tf, action);
  }

  static public void addActionListener(final JComboBox cb, final Runnable action) {
    if (cb != null) {
      swing(() -> {
        cb.addActionListener(actionListener(action));
      });
    }
  }

  static public void addActionListener(final AbstractButton b, final Runnable action) {
    if (b != null) {
      swing(() -> {
        b.addActionListener(actionListener(action));
      });
    }
  }

  static public boolean isChecked(JCheckBox checkBox) {
    return checkBox != null && (boolean) swing(new F0<Boolean>() {

      public Boolean get() {
        try {
          return checkBox.isSelected();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return checkBox.isSelected();";
      }
    });
  }

  static public boolean isChecked(JCheckBoxMenuItem mi) {
    return mi != null && (boolean) swing(new F0<Boolean>() {

      public Boolean get() {
        try {
          return mi.isSelected();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return mi.isSelected();";
      }
    });
  }

  static public boolean isChecked(JRadioButton rb) {
    return rb != null && (boolean) swing(() -> rb.isSelected());
  }

  static public Random getRandomizer(Random r) {
    return r != null ? r : defaultRandomGenerator();
  }

  static public <A> A oneOf(List<A> l) {
    if (empty(l))
      return null;
    int n = l.size();
    return n == 1 ? first(l) : l.get(defaultRandomizer().nextInt(n));
  }

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

  static public <A> A oneOf(A... l) {
    return oneOf(asList(l));
  }

  static public <A> A collectionGet(Collection<A> c, int idx) {
    if (c == null || idx < 0 || idx >= l(c))
      return null;
    if (c instanceof List)
      return listGet((List<A>) c, idx);
    Iterator<A> it = c.iterator();
    for (int i = 0; i < idx; i++) if (it.hasNext())
      it.next();
    else
      return null;
    return it.hasNext() ? it.next() : null;
  }

  static public <A, B> Pair<A, B> entryToPair(Map.Entry<A, B> e) {
    return mapEntryToPair(e);
  }

  static public <A, B> Set<Map.Entry<A, B>> entries(Map<A, B> map) {
    return _entrySet(map);
  }

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

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

  static public boolean isMD5(String s) {
    return l(s) == 32 && isLowerHexString(s);
  }

  static public Object sleepQuietly_monitor = new Object();

  static public void sleepQuietly() {
    try {
      assertFalse(isAWTThread());
      synchronized (sleepQuietly_monitor) {
        sleepQuietly_monitor.wait();
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public String roundBracket(String s) {
    return "(" + s + ")";
  }

  static public String roundBracket(Object s) {
    return roundBracket(str(s));
  }

  static public <A, B> Map<A, B> syncMRUCache(int size) {
    return synchroMap(new MRUCache(size));
  }

  static public char stringToChar(String s) {
    if (l(s) != 1)
      throw fail("bad stringToChar: " + s);
    return firstChar(s);
  }

  static public <A> AutoCloseable tempSetTL(ThreadLocal<A> tl, A a) {
    return tempSetThreadLocal(tl, a);
  }

  static public <A> AutoCloseable tempSetTL(BetterThreadLocal<A> tl, A a) {
    return tempSetThreadLocalIfNecessary(tl, a);
  }

  static public <A> List<A> concatLists(Iterable<A>... lists) {
    List<A> l = new ArrayList();
    if (lists != null)
      for (Iterable<A> list : lists) addAll(l, list);
    return l;
  }

  static public <A> List<A> concatLists(Collection<? extends Iterable<A>> lists) {
    List<A> l = new ArrayList();
    if (lists != null)
      for (Iterable<A> list : lists) addAll(l, list);
    return l;
  }

  static public Font loadFont(String snippetID) {
    try {
      return loadFont(snippetID, 12f);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

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

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

  static public String addPrefix(String prefix, String s) {
    return s.startsWith(prefix) ? s : prefix + s;
  }

  static public String localSnippetTitle(String snippetID) {
    if (!isLocalSnippetID(snippetID))
      return null;
    File f = localSnippetFile(snippetID);
    if (!f.exists())
      return null;
    return or2(getFileInfoField(dropExtension(f), "Title"), "Unnamed");
  }

  static public String muricaCredentialsQuery() {
    return htmlQuery(muricaCredentials());
  }

  static public String standardCredentials_noCookies() {
    return standardCredentials() + "&noCookies=1";
  }

  static public boolean saveTextFileIfChanged(File f, String contents) {
    return saveTextFileIfDifferent(f, contents);
  }

  static public File snippetTitle_cacheFile(String snippetID) {
    return javaxCachesDir("Snippet Titles/" + psI(snippetID));
  }

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

  static public JComponent getInternalFrameTitlePaneComponent(JInternalFrame f) {
    return (JComponent) childWithClassNameEndingWith(f, "InternalFrameTitlePane");
  }

  static public Class hotwireOnce(String programID) {
    return hotwireCached(programID, false);
  }

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

  static public boolean isLowerHexString(String s) {
    for (int i = 0; i < l(s); i++) {
      char c = s.charAt(i);
      if (c >= '0' && c <= '9' || c >= 'a' && c <= 'f') {
      } else
        return false;
    }
    return true;
  }

  static public void assertFalse(Object o) {
    if (!(eq(o, false)))
      throw fail(str(o));
  }

  static public boolean assertFalse(boolean b) {
    if (b)
      throw fail("oops");
    return b;
  }

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

  static public char firstChar(String s) {
    return s.charAt(0);
  }

  static public <A> AutoCloseable tempSetThreadLocalIfNecessary(ThreadLocal<A> tl, A a) {
    if (tl == null)
      return null;
    A prev = tl.get();
    if (eq(prev, a))
      return null;
    tl.set(a);
    return new AutoCloseable() {

      public String toString() {
        return "tl.set(prev);";
      }

      public void close() throws Exception {
        tl.set(prev);
      }
    };
  }

  static public <A> AutoCloseable tempSetThreadLocalIfNecessary(BetterThreadLocal<A> tl, A a) {
    if (tl == null)
      return null;
    A prev = tl.get();
    if (eq(prev, a))
      return null;
    tl.set(a);
    return new AutoCloseable() {

      public String toString() {
        return "tl.set(prev);";
      }

      public void close() throws Exception {
        tl.set(prev);
      }
    };
  }

  static public File loadLibrary(String snippetID) {
    return loadBinarySnippet(snippetID);
  }

  static public File dropExtension(File f) {
    return f == null ? null : fileInSameDir(f, dropExtension(f.getName()));
  }

  static public String dropExtension(String s) {
    return takeFirst(s, smartLastIndexOf(s, '.'));
  }

  static public String htmlQuery(Map params) {
    return empty(params) ? "" : "?" + makePostData(params);
  }

  static public String htmlQuery(Object... data) {
    return empty(data) ? "" : "?" + makePostData(data);
  }

  static public Object[] muricaCredentials() {
    String pass = muricaPassword();
    return nempty(pass) ? new Object[] { "_pass", pass } : new Object[0];
  }

  static public boolean saveTextFileIfDifferent(File f, String contents) {
    if (eq(loadTextFile(f), contents))
      return false;
    {
      saveTextFile(f, contents);
      return true;
    }
  }

  static public Component childWithClassNameEndingWith(Component c, String suffix) {
    if (endsWith(className(c), suffix))
      return c;
    Component x;
    for (Component comp : getComponents(c)) if ((x = childWithClassNameEndingWith(comp, suffix)) != null)
      return x;
    return null;
  }

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

  static public Lock hotwireCached_lock = lock();

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

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

  static public Class hotwireCached(String programID, boolean runMain, boolean dependent) {
    Lock __0 = hotwireCached_lock;
    lock(__0);
    try {
      programID = formatSnippetID(programID);
      Class c = hotwireCached_cache.get(programID);
      if (c == null) {
        c = hotwire(programID);
        if (dependent)
          makeDependent(c);
        if (runMain)
          callMain(c);
        hotwireCached_cache.put(programID, c);
      }
      return c;
    } finally {
      unlock(__0);
    }
  }

  static public File fileInSameDir(File f, String newName) {
    return newFile(parentFile(f), newName);
  }

  static public List<Component> getComponents(final Component c) {
    return !(c instanceof Container) ? emptyList() : asList(swing(new F0<Component[]>() {

      public Component[] get() {
        try {
          return ((Container) c).getComponents();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "return ((Container) c).getComponents();";
      }
    }));
  }

  static public Class<?> hotwire(String src) {
    return hotwire(src, __1 -> mainClassNameForClassLoader(__1));
  }

  static public Class<?> hotwire(String src, IF1<ClassLoader, String> calculateMainClass) {
    assertFalse(_inCore());
    Class j = getJavaX();
    if (isAndroid()) {
      synchronized (j) {
        List<File> libraries = new ArrayList<File>();
        File srcDir = (File) call(j, "transpileMain", src, libraries);
        if (srcDir == null)
          throw fail("transpileMain returned null (src=" + quote(src) + ")");
        Object androidContext = get(j, "androidContext");
        return (Class) call(j, "loadx2android", srcDir, src);
      }
    } else {
      Class c = (Class) (call(j, "hotwire", src));
      hotwire_copyOver(c);
      return c;
    }
  }

  static public Object makeDependent_postProcess;

  static public void makeDependent(Object c) {
    if (c == null)
      return;
    assertTrue("Not a class", c instanceof Class);
    dependentClasses();
    hotwire_classes.add(new WeakReference(c));
    Object local_log = getOpt(mc(), "local_log");
    if (local_log != null)
      setOpt(c, "local_log", local_log);
    Object print_byThread = getOpt(mc(), "print_byThread");
    if (print_byThread != null)
      setOpt(c, "print_byThread", print_byThread);
    callF(makeDependent_postProcess, c);
  }

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

  static public void callMain() {
    callMain(mc());
  }

  static public File parentFile(File f) {
    return dirOfFile(f);
  }

  static public boolean _inCore() {
    return false;
  }

  static public List hotwire_copyOver_after = synchroList();

  static public void hotwire_copyOver(Class c) {
    for (String field : ll("print_log", "print_silent", "androidContext", "_userHome")) setOptIfNotNull(c, field, getOpt(mc(), field));
    setOptIfNotNull(c, "mainBot", getMainBot());
    setOpt(c, "creator_class", new WeakReference(mc()));
    pcallFAll(hotwire_copyOver_after, c);
  }

  static public List<Class> dependentClasses() {
    return cleanUpAndGetWeakReferencesList(hotwire_classes);
  }

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

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

  static public File dirOfFile(File f) {
    return f == null ? null : f.getParentFile();
  }

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

  static public Object mainBot;

  static public Object getMainBot() {
    return mainBot;
  }

  static public <A> List<A> cleanUpAndGetWeakReferencesList(List<WeakReference<A>> l) {
    if (l == null)
      return null;
    synchronized (l) {
      List<A> out = new ArrayList();
      for (int i = 0; i < l(l); i++) {
        A a = l.get(i).get();
        if (a == null)
          l.remove(i--);
        else
          out.add(a);
      }
      return out;
    }
  }

  final static public class _MethodCache {

    final public Class c;

    final public HashMap<String, List<Method>> cache = new HashMap();

    public _MethodCache(Class c) {
      this.c = c;
      _init();
    }

    public void _init() {
      Class _c = c;
      java.lang.Module myModule = getClass().getModule();
      boolean anyHiddenClasses = false;
      while (_c != null) {
        boolean exported = classIsExportedTo(_c, myModule);
        if (!exported)
          anyHiddenClasses = true;
        else
          for (Method m : _c.getDeclaredMethods()) if ((anyHiddenClasses || !isAbstract(m)) && !reflection_isForbiddenMethod(m))
            multiMapPut(cache, m.getName(), makeAccessible(m));
        _c = _c.getSuperclass();
      }
      for (Class intf : allInterfacesImplementedBy(c)) for (Method m : intf.getDeclaredMethods()) if ((anyHiddenClasses || m.isDefault()) && !reflection_isForbiddenMethod(m))
        multiMapPut(cache, m.getName(), makeAccessible(m));
    }

    public Method findMethod(String method, Object[] args) {
      try {
        List<Method> m = cache.get(method);
        if (m == null)
          return null;
        int n = m.size();
        for (int i = 0; i < n; i++) {
          Method me = m.get(i);
          if (call_checkArgs(me, args, false))
            return me;
        }
        return null;
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }

    public Method findStaticMethod(String method, Object[] args) {
      try {
        List<Method> m = cache.get(method);
        if (m == null)
          return null;
        int n = m.size();
        for (int i = 0; i < n; i++) {
          Method me = m.get(i);
          if (isStaticMethod(me) && call_checkArgs(me, args, false))
            return me;
        }
        return null;
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }
  }

  static public class Meta implements IMeta {

    volatile public Object meta;

    public void _setMeta(Object meta) {
      this.meta = meta;
    }

    public Object _getMeta() {
      return meta;
    }

    final public boolean scaffolding() {
      return scaffoldingEnabled();
    }

    final public boolean scaffolded() {
      return scaffoldingEnabled();
    }

    public boolean scaffoldingEnabled() {
      return main.scaffoldingEnabled(this);
    }

    public boolean scaffoldingEnabled(Object o) {
      return main.scaffoldingEnabled(o);
    }

    public String toString_base() {
      return super.toString();
    }

    public String toString() {
      Object o = metaGet("toString", this);
      if (o instanceof String)
        return ((String) o);
      if (o instanceof IF1)
        return str(((IF1) o).get(this));
      return toString_base();
    }
  }

  static abstract public class VF2<A, B> {

    abstract public void get(A a, B b);
  }

  static public class OrderedMultiIterator<A extends Comparable<A>> extends IterableIterator<A> {

    static public class Stream<A extends Comparable<A>> implements Comparable<Stream<A>>, IFieldsToList {

      public Iterator<A> iterator;

      public A element;

      public Stream() {
      }

      public Stream(Iterator<A> iterator, A element) {
        this.element = element;
        this.iterator = iterator;
      }

      public String toString() {
        return shortClassName_dropNumberPrefix(this) + "(" + iterator + ", " + element + ")";
      }

      public Object[] _fieldsToList() {
        return new Object[] { iterator, element };
      }

      public int compareTo(Stream<A> stream) {
        return element.compareTo(stream.element);
      }

      public boolean advance() {
        if (!iterator.hasNext())
          return false;
        element = iterator.next();
        return true;
      }
    }

    public ArrayList<Stream<A>> streams = new ArrayList();

    public boolean sorted = false;

    public void add(Iterable<A> it) {
      add(iteratorOrNull(it));
    }

    public void add(Iterator<A> iterator) {
      if (iterator == null || !iterator.hasNext())
        return;
      A element = iterator.next();
      streams.add(new Stream<A>(iterator, element));
      sorted = false;
    }

    public void addAll(Iterable<? extends Iterator<A>> iterators) {
      for (var it : unnullForIteration(iterators)) add(it);
    }

    public boolean hasNext() {
      return nempty(streams);
    }

    public A next() {
      if (!sorted) {
        sortInPlace(streams);
        sorted = true;
      }
      var stream = first(streams);
      A element = stream.element;
      if (!stream.advance())
        streams.remove(0);
      else {
        int i = 0, n = streams.size() - 1;
        Stream<A> stream2;
        while (i < n && stream.compareTo(stream2 = streams.get(i + 1)) >= 0) streams.set(i++, stream2);
        streams.set(i, stream);
      }
      return element;
    }
  }

  static public class Symbol implements CharSequence {

    public String text;

    public Symbol() {
    }

    public Symbol(String text, boolean dummy) {
      this.text = text;
    }

    public int hashCode() {
      return _hashCode(text);
    }

    public String toString() {
      return text;
    }

    public boolean equals(Object o) {
      return this == o;
    }

    public int length() {
      return text.length();
    }

    public char charAt(int index) {
      return text.charAt(index);
    }

    public CharSequence subSequence(int start, int end) {
      return text.substring(start, end);
    }
  }

  static public class Var<A> implements IVar<A>, ISetter<A> {

    public Var() {
    }

    public Var(A v) {
      this.v = v;
    }

    public A v;

    public synchronized void set(A a) {
      if (v != a) {
        v = a;
        notifyAll();
      }
    }

    public synchronized A get() {
      return v;
    }

    public synchronized boolean has() {
      return v != null;
    }

    public void clear() {
      set(null);
    }

    public synchronized A getAndSet(A a) {
      var value = v;
      set(a);
      return value;
    }

    public IF0<A> getter() {
      return () -> get();
    }

    public IVF1<A> setter() {
      return __54 -> set(__54);
    }

    public String toString() {
      return str(this.get());
    }
  }

  static public interface IMeta {

    public void _setMeta(Object meta);

    public Object _getMeta();

    default public IAutoCloseableF0 _tempMetaMutex() {
      return new IAutoCloseableF0() {

        public Object get() {
          return IMeta.this;
        }

        public void close() {
        }
      };
    }

    default public Object getMeta(Object obj, Object key) {
      return metaGet(obj, key);
    }

    default public Object metaGet(Object obj, Object key) {
      return metaMapGet(obj, key);
    }

    default public Object metaGet(String key, Object obj) {
      return metaMapGet(obj, key);
    }

    default public Object getMeta(Object key) {
      return metaGet(key);
    }

    default public Object metaGet(Object key) {
      if (key == null)
        return null;
      Object meta = _getMeta();
      if (meta instanceof Map)
        return ((Map) meta).get(key);
      return null;
    }

    default public void metaSet(IMeta obj, Object key, Object value) {
      metaPut(obj, key, value);
    }

    default public void metaPut(IMeta obj, Object key, Object value) {
      metaMapPut(obj, key, value);
    }

    default public void metaSet(Object key, Object value) {
      metaPut(key, value);
    }

    default public void metaPut(Object key, Object value) {
      if (key == null)
        return;
      Map map = convertObjectMetaToMap(this);
      syncMapPutOrRemove(map, key, value);
    }
  }

  static public class BetterThread extends Thread {

    public Runnable target;

    public BetterThread(Runnable target) {
      this.target = target;
      _created();
    }

    public BetterThread(Runnable target, String name) {
      super(name);
      this.target = target;
      _created();
    }

    public void _created() {
      vmBus_send("threadCreated", this);
    }

    public void run() {
      try {
        try {
          vmBus_send("threadStarted", this);
          if (target != null)
            target.run();
        } finally {
          vmBus_send("threadEnded", this);
        }
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }

    public Runnable getTarget() {
      return target;
    }
  }

  static public interface ITokCondition {

    public boolean get(List<String> tok, int i);
  }

  static abstract public class TokCondition implements ITokCondition {

    public abstract boolean get(List<String> tok, int i);
  }

  static public class PingSource {

    final public PingSource setAction(IF0<Boolean> action) {
      return action(action);
    }

    public PingSource action(IF0<Boolean> action) {
      this.action = action;
      return this;
    }

    final public IF0<Boolean> getAction() {
      return action();
    }

    public IF0<Boolean> action() {
      return action;
    }

    volatile public IF0<Boolean> action;

    public String text;

    public ThreadPool threadPool;

    public PingSource() {
    }

    public PingSource(ThreadPool threadPool) {
      this.threadPool = threadPool;
    }

    public PingSource(ThreadPool threadPool, String text) {
      this.text = text;
      this.threadPool = threadPool;
    }

    public PingSource(IF0<Boolean> action) {
      this.action = action;
    }

    final public boolean get() {
      var a = action;
      return a != null && a.get();
    }

    final public void ping() {
      var a = action;
      if (a != null)
        a.get();
    }

    public void cancel() {
      action = new Cancelled();
    }

    public class Cancelled implements IF0<Boolean> {

      public Boolean get() {
        throw new PingSourceCancelledException(PingSource.this);
      }
    }

    public class Encapsulated implements Runnable, IFieldsToList {

      public Runnable r;

      public Encapsulated() {
      }

      public Encapsulated(Runnable r) {
        this.r = r;
      }

      public Object[] _fieldsToList() {
        return new Object[] { r };
      }

      public void run() {
        try {
          try {
            pingSource_tl().set(PingSource.this);
            ping();
            r.run();
          } finally {
            pingSource_tl().set(null);
          }
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return PingSource.this + ": " + r;
      }
    }

    public void dO(Runnable r) {
      if (r == null)
        return;
      threadPool.acquireThreadOrQueue(new Encapsulated(r));
    }

    public String toString() {
      String t = text;
      return nempty(t) ? t : super.toString();
    }

    public ISleeper_v2 sleeper() {
      return threadPool.sleeper();
    }
  }

  static public class BlockDiff {

    public CopyBlock asCopyBlock() {
      return null;
    }

    public NewBlock asNewBlock() {
      return null;
    }
  }

  static public class CopyBlock extends BlockDiff {

    public int firstLine, lines;

    public CopyBlock(int firstLine, int lines) {
      this.firstLine = firstLine;
      this.lines = lines;
    }

    public CopyBlock asCopyBlock() {
      return this;
    }

    public int getFirstLine() {
      return firstLine;
    }

    public int getLines() {
      return lines;
    }
  }

  static public class NewBlock extends BlockDiff {

    public int originalStart;

    public List<String> contents;

    public NewBlock(int originalStart, List<String> contents) {
      this.originalStart = originalStart;
      this.contents = contents;
    }

    public NewBlock asNewBlock() {
      return this;
    }

    public int getOriginalStart() {
      return originalStart;
    }

    public List<String> getContents() {
      return contents;
    }
  }

  static public class ExplodedLine {

    public int type;

    public String left, right;

    public int leftIndex, rightIndex;

    public ExplodedLine(int type, String left, String right, int leftIndex, int rightIndex) {
      this.type = type;
      this.left = left;
      this.right = right;
      this.leftIndex = leftIndex;
      this.rightIndex = rightIndex;
    }

    public int getType() {
      return type;
    }

    public String getLeft() {
      return left;
    }

    public String getRight() {
      return right;
    }

    public int getLeftIndex() {
      return leftIndex;
    }

    public int getRightIndex() {
      return rightIndex;
    }
  }

  static public class BlockDiffer {

    public static final int IDENTICAL = 0;

    public static final int DIFFERENT = 1;

    public static final int LEFT_ONLY = 2;

    public static final int RIGHT_ONLY = 3;

    private static void printChange(EGDiff.change change) {
      if (change != null) {
        System.out.println("line0=" + change.line0 + ", line1=" + change.line1 + ", inserted=" + change.inserted + ", deleted=" + change.deleted);
        printChange(change.link);
      }
    }

    public static List<String> generateUniDiff(List<String> fileA, List<String> fileB, int contextSize) {
      EGDiff diff = new EGDiff(fileA.toArray(), fileB.toArray());
      EGDiff.change change = diff.diff_2(false);
      if (change != null) {
        int inserted, deleted;
        List<String> hunkLines = new ArrayList<String>();
        int cumulExtraLinesBwrtA = 0;
        do {
          int line0 = change.line0, line1 = change.line1;
          int changeStart = ((line1 < line0) ? line1 : line0);
          int contextStart = ((changeStart > contextSize) ? changeStart - contextSize : 0);
          int headerPosn = hunkLines.size();
          for (int i = contextStart; i < changeStart; i++) hunkLines.add(" " + fileA.get(i));
          boolean hunkFinish = false;
          do {
            inserted = change.inserted;
            deleted = change.deleted;
            line0 = change.line0;
            line1 = change.line1;
            if (line1 < line0)
              while (inserted-- > 0) hunkLines.add("+" + fileB.get(line1++));
            while (deleted-- > 0) hunkLines.add("-" + fileA.get(line0++));
            while (inserted-- > 0) hunkLines.add("+" + fileB.get(line1++));
            EGDiff.change nextChange = change.link;
            int nextChangeStart = fileA.size();
            if (nextChange != null)
              nextChangeStart = ((nextChange.line1 < nextChange.line0) ? nextChange.line1 : nextChange.line0);
            if (nextChangeStart - line0 > contextSize * 2) {
              nextChangeStart = line0 + contextSize;
              hunkFinish = true;
            }
            if (nextChangeStart > fileA.size())
              nextChangeStart = fileA.size();
            while (line0 < nextChangeStart) {
              hunkLines.add(" " + fileA.get(line0++));
              line1++;
            }
            change = change.link;
          } while (!hunkFinish && change != null);
          int hunkStartB = contextStart + cumulExtraLinesBwrtA;
          int hunkTotA = line0 - contextStart;
          int hunkTotB = line1 - hunkStartB;
          hunkLines.add(headerPosn, "@@ -" + (contextStart + 1) + ',' + hunkTotA + " +" + (hunkStartB + 1) + ',' + hunkTotB + " @@");
          cumulExtraLinesBwrtA += hunkTotB - hunkTotA;
        } while (change != null);
        return hunkLines;
      }
      return null;
    }

    public static List<BlockDiff> diffLines(List<String> lines, List<String> reference) {
      List<BlockDiff> diffs = new ArrayList<BlockDiff>();
      EGDiff diff = new EGDiff(reference.toArray(), lines.toArray());
      EGDiff.change change = diff.diff_2(false);
      int l0 = 0, l1 = 0;
      while (change != null) {
        if (change.line0 > l0 && change.line1 > l1)
          diffs.add(new CopyBlock(l0, change.line0 - l0));
        if (change.inserted != 0)
          diffs.add(new NewBlock(change.line1, lines.subList(change.line1, change.line1 + change.inserted)));
        l0 = change.line0 + change.deleted;
        l1 = change.line1 + change.inserted;
        change = change.link;
      }
      if (l0 < reference.size())
        diffs.add(new CopyBlock(l0, reference.size() - l0));
      return diffs;
    }

    public static List<ExplodedLine> explode(List<String> file1, List<String> file2) {
      List<ExplodedLine> lines = new ArrayList<ExplodedLine>();
      List<BlockDiff> diffs = BlockDiffer.diffLines(file2, file1);
      int lastLineCopied = 0, rightOnlyStart = -1, rightPosition = 0;
      for (int i = 0; i < diffs.size(); i++) {
        BlockDiff diff = diffs.get(i);
        if (diff instanceof CopyBlock) {
          CopyBlock copyBlock = (CopyBlock) diff;
          if (lastLineCopied < copyBlock.getFirstLine()) {
            if (rightOnlyStart >= 0) {
              int overlap = Math.min(lines.size() - rightOnlyStart, copyBlock.getFirstLine() - lastLineCopied);
              convertRightOnlyToDifferent(lines, rightOnlyStart, overlap, file1, lastLineCopied);
              lastLineCopied += overlap;
            }
            addBlock(lines, LEFT_ONLY, file1, lastLineCopied, copyBlock.getFirstLine(), lastLineCopied, -1);
          }
          addBlock(lines, IDENTICAL, file1, copyBlock.getFirstLine(), copyBlock.getFirstLine() + copyBlock.getLines(), copyBlock.getFirstLine(), rightPosition);
          rightPosition += copyBlock.getLines();
          lastLineCopied = copyBlock.getFirstLine() + copyBlock.getLines();
          rightOnlyStart = -1;
        } else if (diff instanceof NewBlock) {
          NewBlock newBlock = (NewBlock) diff;
          rightOnlyStart = lines.size();
          addBlock(lines, RIGHT_ONLY, newBlock.getContents(), 0, newBlock.getContents().size(), -1, rightPosition);
          rightPosition += newBlock.getContents().size();
        }
      }
      if (rightOnlyStart >= 0) {
        int overlap = Math.min(lines.size() - rightOnlyStart, file1.size() - lastLineCopied);
        convertRightOnlyToDifferent(lines, rightOnlyStart, overlap, file1, lastLineCopied);
        lastLineCopied += overlap;
      }
      addBlock(lines, LEFT_ONLY, file1, lastLineCopied, file1.size(), lastLineCopied, -1);
      return lines;
    }

    private static void convertRightOnlyToDifferent(List<ExplodedLine> lines, int start, int numLines, List<String> leftLines, int leftStart) {
      for (int i = 0; i < numLines; i++) {
        ExplodedLine line = lines.get(start + i);
        lines.set(start + i, new ExplodedLine(DIFFERENT, leftLines.get(i + leftStart), line.getRight(), i + leftStart, line.getRightIndex()));
      }
    }

    private static void addBlock(List<ExplodedLine> lines, int type, List<String> srcLines, int start, int end, int leftStart, int rightStart) {
      for (int i = start; i < end; i++) lines.add(new ExplodedLine(type, type == RIGHT_ONLY ? "" : srcLines.get(i), type == LEFT_ONLY ? "" : srcLines.get(i), type == RIGHT_ONLY ? -1 : i - start + leftStart, type == LEFT_ONLY ? -1 : i - start + rightStart));
    }

    public static List<ExplodedLine> condense(List<ExplodedLine> lines) {
      List<ExplodedLine> result = new ArrayList<ExplodedLine>();
      for (Iterator<ExplodedLine> i = lines.iterator(); i.hasNext(); ) {
        ExplodedLine line = i.next();
        if (line.getType() == IDENTICAL) {
          if (result.isEmpty() || result.get(result.size() - 1).getType() != IDENTICAL)
            result.add(new ExplodedLine(IDENTICAL, "[...]", "[...]", -1, -1));
        } else
          result.add(line);
      }
      return result;
    }
  }

  static public class MultiMap<A, B> implements IMultiMap<A, B> {

    public Map<A, List<B>> data = new HashMap<A, List<B>>();

    public int fullSize;

    public MultiMap() {
    }

    public MultiMap(boolean useTreeMap) {
      if (useTreeMap)
        data = new TreeMap();
    }

    public MultiMap(MultiMap<A, B> map) {
      putAll(map);
    }

    public MultiMap(Map<A, List<B>> data) {
      this.data = data;
    }

    public void put(A key, B value) {
      synchronized (data) {
        List<B> list = data.get(key);
        if (list == null)
          data.put(key, list = _makeEmptyList());
        list.add(value);
        ++fullSize;
      }
    }

    public void add(A key, B value) {
      put(key, value);
    }

    public void addAll(A key, Collection<B> values) {
      putAll(key, values);
    }

    public void addAllIfNotThere(A key, Collection<B> values) {
      synchronized (data) {
        for (B value : values) setPut(key, value);
      }
    }

    public void setPut(A key, B value) {
      synchronized (data) {
        if (!containsPair(key, value))
          put(key, value);
      }
    }

    public boolean containsPair(A key, B value) {
      synchronized (data) {
        return get(key).contains(value);
      }
    }

    public void putAll(Collection<A> keys, B value) {
      synchronized (data) {
        for (A key : unnullForIteration(keys)) put(key, value);
      }
    }

    public void putAll(A key, Collection<B> values) {
      synchronized (data) {
        if (nempty(values))
          getActual(key).addAll(values);
      }
    }

    public void putAll(Iterable<Pair<A, B>> pairs) {
      synchronized (data) {
        for (Pair<A, B> p : unnullForIteration(pairs)) put(p.a, p.b);
      }
    }

    public void removeAll(A key, Collection<B> values) {
      synchronized (data) {
        for (B value : values) remove(key, value);
      }
    }

    public List<B> get(A key) {
      synchronized (data) {
        List<B> list = data.get(key);
        return list == null ? Collections.<B>emptyList() : list;
      }
    }

    public List<B> getOpt(A key) {
      synchronized (data) {
        return data.get(key);
      }
    }

    public List<B> getAndClear(A key) {
      synchronized (data) {
        List<B> l = cloneList(data.get(key));
        remove(key);
        return l;
      }
    }

    public List<B> getActual(A key) {
      synchronized (data) {
        List<B> list = data.get(key);
        if (list == null)
          data.put(key, list = _makeEmptyList());
        return list;
      }
    }

    public void clean(A key) {
      synchronized (data) {
        List<B> list = data.get(key);
        if (list != null && list.isEmpty()) {
          fullSize -= l(list);
          data.remove(key);
        }
      }
    }

    final public Set<A> keys() {
      return keySet();
    }

    public Set<A> keySet() {
      synchronized (data) {
        return data.keySet();
      }
    }

    public void remove(A key) {
      synchronized (data) {
        fullSize -= l(this.getOpt(key));
        data.remove(key);
      }
    }

    final public void remove(Pair<A, B> p) {
      removePair(p);
    }

    public void removePair(Pair<A, B> p) {
      if (p != null)
        remove(p.a, p.b);
    }

    public void remove(A key, B value) {
      synchronized (data) {
        List<B> list = data.get(key);
        if (list != null) {
          if (list.remove(value))
            fullSize--;
          if (list.isEmpty())
            data.remove(key);
        }
      }
    }

    public void clear() {
      synchronized (data) {
        data.clear();
      }
    }

    public boolean containsKey(A key) {
      synchronized (data) {
        return data.containsKey(key);
      }
    }

    public B getFirst(A key) {
      synchronized (data) {
        List<B> list = get(key);
        return list.isEmpty() ? null : list.get(0);
      }
    }

    public void addAll(MultiMap<A, B> map) {
      putAll(map);
    }

    public void putAll(MultiMap<A, B> map) {
      synchronized (data) {
        for (A key : map.keySet()) putAll(key, map.get(key));
      }
    }

    public void putAll(Map<A, B> map) {
      synchronized (data) {
        if (map != null)
          for (Map.Entry<A, B> e : map.entrySet()) put(e.getKey(), e.getValue());
      }
    }

    final public int keyCount() {
      return keysSize();
    }

    public int keysSize() {
      synchronized (data) {
        return l(data);
      }
    }

    final public int fullSize() {
      return size();
    }

    public int size() {
      synchronized (data) {
        return fullSize;
      }
    }

    public List<A> reverseGet(B b) {
      synchronized (data) {
        List<A> l = new ArrayList();
        for (A key : data.keySet()) if (data.get(key).contains(b))
          l.add(key);
        return l;
      }
    }

    public Map<A, List<B>> asMap() {
      synchronized (data) {
        return cloneMap(data);
      }
    }

    public boolean isEmpty() {
      synchronized (data) {
        return data.isEmpty();
      }
    }

    public List<B> _makeEmptyList() {
      return new ArrayList();
    }

    public Collection<List<B>> allLists() {
      synchronized (data) {
        return new ArrayList(data.values());
      }
    }

    public Collection<List<B>> values() {
      return allLists();
    }

    public List<B> allValues() {
      return concatLists(data.values());
    }

    public Object mutex() {
      return data;
    }

    public String toString() {
      return "mm" + str(data);
    }

    public Map<A, List<B>> innerMap() {
      return data;
    }
  }

  public interface IHasChangeListeners {

    public IHasChangeListeners onChange(Runnable r);

    public IHasChangeListeners removeChangeListener(Runnable r);

    default public IHasChangeListeners onChangeAndNow(Runnable l) {
      onChange(l);
      callF(l);
      return this;
    }
  }

  static public class BetterThreadLocal<A> {

    public Map<Thread, A> map = newWeakHashMap();

    public BetterThreadLocal() {
    }

    public BetterThreadLocal(A value) {
      set(value);
    }

    public boolean isSet() {
      return map.containsKey(currentThread());
    }

    public A get() {
      if (map.containsKey(currentThread()))
        return map.get(currentThread());
      A value = initialValue();
      set(value);
      return value;
    }

    public A get(Thread thread) {
      return thread == null ? null : map.get(thread);
    }

    public void set(A a) {
      map.put(currentThread(), a);
    }

    public A initialValue() {
      return null;
    }
  }

  public interface IntSize {

    public int size();

    default public boolean isEmpty() {
      return size() == 0;
    }
  }

  static public interface IResourceLoader {

    public String loadSnippet(String snippetID);

    public String getTranspiled(String snippetID);

    public int getSnippetType(String snippetID);

    public String getSnippetTitle(String snippetID);

    public File loadLibrary(String snippetID);

    default public File pathToJavaXJar() {
      return pathToJavaxJar_noResourceLoader();
    }

    default public File getSnippetJar(String snippetID, String transpiledSrc) {
      return null;
    }
  }

  static final public class WeakHasherMap<K, V> extends AbstractMap<K, V> implements Map<K, V> {

    public Hasher hasher = null;

    private boolean keyEquals(Object k1, Object k2) {
      return (hasher == null ? k1.equals(k2) : hasher.equals(k1, k2));
    }

    private int keyHashCode(Object k1) {
      return (hasher == null ? k1.hashCode() : hasher.hashCode(k1));
    }

    private WeakKey WeakKeyCreate(K k) {
      if (k == null)
        return null;
      else
        return new WeakKey(k);
    }

    private WeakKey WeakKeyCreate(K k, ReferenceQueue<? super K> q) {
      if (k == null)
        return null;
      else
        return new WeakKey(k, q);
    }

    final public class WeakKey extends WeakReference<K> {

      public int hash;

      public WeakKey(K k) {
        super(k);
        hash = keyHashCode(k);
      }

      private WeakKey create(K k) {
        if (k == null)
          return null;
        else
          return new WeakKey(k);
      }

      public WeakKey(K k, ReferenceQueue<? super K> q) {
        super(k, q);
        hash = keyHashCode(k);
      }

      private WeakKey create(K k, ReferenceQueue<? super K> q) {
        if (k == null)
          return null;
        else
          return new WeakKey(k, q);
      }

      @Override
      public boolean equals(Object o) {
        if (o == null)
          return false;
        if (this == o)
          return true;
        if (!(o.getClass().equals(WeakKey.class)))
          return false;
        Object t = this.get();
        @SuppressWarnings("unchecked")
        Object u = ((WeakKey) o).get();
        if ((t == null) || (u == null))
          return false;
        if (t == u)
          return true;
        return keyEquals(t, u);
      }

      @Override
      public int hashCode() {
        return hash;
      }
    }

    public HashMap<WeakKey, V> hash;

    public ReferenceQueue<? super K> queue = new ReferenceQueue<K>();

    @SuppressWarnings("unchecked")
    private void processQueue() {
      WeakKey wk;
      while ((wk = (WeakKey) queue.poll()) != null) {
        hash.remove(wk);
      }
    }

    public WeakHasherMap(int initialCapacity, float loadFactor) {
      hash = new HashMap<WeakKey, V>(initialCapacity, loadFactor);
    }

    public WeakHasherMap(int initialCapacity) {
      hash = new HashMap<WeakKey, V>(initialCapacity);
    }

    public WeakHasherMap() {
      hash = new HashMap<WeakKey, V>();
    }

    public WeakHasherMap(Hasher h) {
      hash = new HashMap<WeakKey, V>();
      hasher = h;
    }

    @Override
    public int size() {
      return entrySet().size();
    }

    @Override
    public boolean isEmpty() {
      return entrySet().isEmpty();
    }

    @Override
    public boolean containsKey(Object key) {
      @SuppressWarnings("unchecked")
      K kkey = (K) key;
      return hash.containsKey(WeakKeyCreate(kkey));
    }

    @Override
    public V get(Object key) {
      @SuppressWarnings("unchecked")
      K kkey = (K) key;
      return hash.get(WeakKeyCreate(kkey));
    }

    @Override
    public V put(K key, V value) {
      processQueue();
      return hash.put(WeakKeyCreate(key, queue), value);
    }

    @Override
    public V remove(Object key) {
      processQueue();
      @SuppressWarnings("unchecked")
      K kkey = (K) key;
      return hash.remove(WeakKeyCreate(kkey));
    }

    @Override
    public void clear() {
      processQueue();
      hash.clear();
    }

    @SuppressWarnings("TypeParameterShadowing")
    final public class Entry<K, V> implements Map.Entry<K, V> {

      public Map.Entry<WeakKey, V> ent;

      public K key;

      public Entry(Map.Entry<WeakKey, V> ent, K key) {
        this.ent = ent;
        this.key = key;
      }

      @Override
      public K getKey() {
        return key;
      }

      @Override
      public V getValue() {
        return ent.getValue();
      }

      @Override
      public V setValue(V value) {
        return ent.setValue(value);
      }

      private boolean keyvalEquals(K o1, K o2) {
        return (o1 == null) ? (o2 == null) : keyEquals(o1, o2);
      }

      private boolean valEquals(V o1, V o2) {
        return (o1 == null) ? (o2 == null) : o1.equals(o2);
      }

      @SuppressWarnings("NonOverridingEquals")
      public boolean equals(Map.Entry<K, V> e) {
        return (keyvalEquals(key, e.getKey()) && valEquals(getValue(), e.getValue()));
      }

      @Override
      public int hashCode() {
        V v;
        return (((key == null) ? 0 : keyHashCode(key)) ^ (((v = getValue()) == null) ? 0 : v.hashCode()));
      }
    }

    final public class EntrySet extends AbstractSet<Map.Entry<K, V>> {

      public Set<Map.Entry<WeakKey, V>> hashEntrySet = hash.entrySet();

      @Override
      public Iterator<Map.Entry<K, V>> iterator() {
        return new Iterator<Map.Entry<K, V>>() {

          public Iterator<Map.Entry<WeakKey, V>> hashIterator = hashEntrySet.iterator();

          public Map.Entry<K, V> next = null;

          @Override
          public boolean hasNext() {
            while (hashIterator.hasNext()) {
              Map.Entry<WeakKey, V> ent = hashIterator.next();
              WeakKey wk = ent.getKey();
              K k = null;
              if ((wk != null) && ((k = wk.get()) == null)) {
                continue;
              }
              next = new Entry<K, V>(ent, k);
              return true;
            }
            return false;
          }

          @Override
          public Map.Entry<K, V> next() {
            if ((next == null) && !hasNext())
              throw new NoSuchElementException();
            Map.Entry<K, V> e = next;
            next = null;
            return e;
          }

          @Override
          public void remove() {
            hashIterator.remove();
          }
        };
      }

      @Override
      public boolean isEmpty() {
        return !(iterator().hasNext());
      }

      @Override
      public int size() {
        int j = 0;
        for (Iterator<Map.Entry<K, V>> i = iterator(); i.hasNext(); i.next()) j++;
        return j;
      }

      @Override
      public boolean remove(Object o) {
        processQueue();
        if (!(o instanceof Map.Entry<?, ?>))
          return false;
        @SuppressWarnings("unchecked")
        Map.Entry<K, V> e = (Map.Entry<K, V>) o;
        Object ev = e.getValue();
        WeakKey wk = WeakKeyCreate(e.getKey());
        Object hv = hash.get(wk);
        if ((hv == null) ? ((ev == null) && hash.containsKey(wk)) : hv.equals(ev)) {
          hash.remove(wk);
          return true;
        }
        return false;
      }

      @Override
      public int hashCode() {
        int h = 0;
        for (Iterator<Map.Entry<WeakKey, V>> i = hashEntrySet.iterator(); i.hasNext(); ) {
          Map.Entry<WeakKey, V> ent = i.next();
          WeakKey wk = ent.getKey();
          Object v;
          if (wk == null)
            continue;
          h += (wk.hashCode() ^ (((v = ent.getValue()) == null) ? 0 : v.hashCode()));
        }
        return h;
      }
    }

    public Set<Map.Entry<K, V>> entrySet = null;

    @Override
    public Set<Map.Entry<K, V>> entrySet() {
      if (entrySet == null)
        entrySet = new EntrySet();
      return entrySet;
    }

    public K findKey(Object key) {
      processQueue();
      K kkey = (K) key;
      WeakKey wkey = WeakKeyCreate(kkey);
      WeakKey found = hashMap_findKey(hash, wkey);
      return found == null ? null : found.get();
    }
  }

  static public class proxy_InvocationHandler implements InvocationHandler {

    public Object target;

    public proxy_InvocationHandler() {
    }

    public proxy_InvocationHandler(Object target) {
      this.target = target;
    }

    public Object invoke(Object proxy, Method method, Object[] args) {
      return call(target, method.getName(), unnull(args));
    }
  }

  static public class CompactLinkedHashSet<A> extends AbstractSet<A> {

    public UnsynchronizedCompactHashSet<Entry<A>> entries = new UnsynchronizedCompactHashSet();

    public Entry<A> head, tail;

    static public class Entry<A> {

      public A value;

      public Entry<A> prev, next;

      public int hashCode() {
        return _hashCode(value);
      }

      public boolean equals(Object o) {
        return o == this || eq(value, o);
      }
    }

    public boolean add(A a) {
      if (entries.contains(a))
        return false;
      Entry<A> n = new Entry();
      n.value = a;
      n.prev = tail;
      if (tail != null)
        tail.next = n;
      tail = n;
      if (head == null)
        head = n;
      entries.add(n);
      return true;
    }

    public boolean remove(Object a) {
      return remove(entries.find(a));
    }

    public boolean remove(Entry<A> node) {
      if (node == null)
        return false;
      if (node.next != null)
        node.next.prev = node.prev;
      else
        tail = node.prev;
      if (node.prev != null)
        node.prev.next = node.next;
      else
        head = node.next;
      entries.remove(node);
      return true;
    }

    public int size() {
      return entries.size();
    }

    public IterableIterator<A> iterator() {
      return new IterableIterator<A>() {

        public Entry<A> entry = head, prev = null;

        public boolean hasNext() {
          return entry != null;
        }

        public A next() {
          A a = entry.value;
          prev = entry;
          entry = entry.next;
          return a;
        }

        public void remove() {
          if (prev == null)
            throw new IllegalStateException();
          CompactLinkedHashSet.this.remove(prev);
          prev = null;
        }
      };
    }

    public void clear() {
      entries.clear();
      head = tail = null;
    }

    public boolean contains(Object a) {
      return entries.contains(a);
    }

    public A find(Object o) {
      Entry<A> e = entries.find(o);
      return e == null ? null : e.value;
    }

    public A prevElement(A a) {
      Entry<A> e = entries.find(a);
      if (e == null || e.prev == null)
        return null;
      return e.prev.value;
    }

    public A nextElement(A a) {
      Entry<A> e = entries.find(a);
      if (e == null || e.next == null)
        return null;
      return e.next.value;
    }

    public A first() {
      return head == null ? null : head.value;
    }

    public A last() {
      return tail == null ? null : tail.value;
    }

    public boolean removeIfSame(Object o) {
      A value = find(o);
      if (value == o) {
        remove(value);
        return true;
      }
      return false;
    }
  }

  static public class Pair<A, B> implements Comparable<Pair<A, B>> {

    final public Pair<A, B> setA(A a) {
      return a(a);
    }

    public Pair<A, B> a(A a) {
      this.a = a;
      return this;
    }

    final public A getA() {
      return a();
    }

    public A a() {
      return a;
    }

    public A a;

    final public Pair<A, B> setB(B b) {
      return b(b);
    }

    public Pair<A, B> b(B b) {
      this.b = b;
      return this;
    }

    final public B getB() {
      return b();
    }

    public B b() {
      return b;
    }

    public B b;

    public Pair() {
    }

    public Pair(A a, B b) {
      this.b = b;
      this.a = a;
    }

    public int hashCode() {
      return hashCodeFor(a) + 2 * hashCodeFor(b);
    }

    public boolean equals(Object o) {
      if (o == this)
        return true;
      if (!(o instanceof Pair))
        return false;
      Pair t = (Pair) o;
      return eq(a, t.a) && eq(b, t.b);
    }

    public String toString() {
      return "<" + a + ", " + b + ">";
    }

    public int compareTo(Pair<A, B> p) {
      if (p == null)
        return 1;
      int i = ((Comparable<A>) a).compareTo(p.a);
      if (i != 0)
        return i;
      return ((Comparable<B>) b).compareTo(p.b);
    }
  }

  static public class Fail extends RuntimeException implements IFieldsToList {

    public Object[] objects;

    public Fail() {
    }

    public Fail(Object... objects) {
      this.objects = objects;
    }

    public Object[] _fieldsToList() {
      return new Object[] { objects };
    }

    public Fail(Throwable cause, Object... objects) {
      super(cause);
      this.objects = objects;
    }

    public String toString() {
      return joinNemptiesWithColon("Fail", getMessage());
    }

    public String getMessage() {
      return commaCombine(getCause(), objects);
    }
  }

  static public interface IResourceHolder {

    public <A extends AutoCloseable> A add(A a);

    public Collection<AutoCloseable> takeAll();
  }

  static public class TableFinder {

    public List<String> tok;

    public List<String> table;

    public List<List<String>> rows;

    public List<List<String>> data;

    public int i;

    public boolean debug = false;

    public TableFinder() {
    }

    public TableFinder(String html) {
      go(html);
    }

    public TableFinder(String html, boolean findFirstTable) {
      go(html, findFirstTable);
    }

    public void go(String html) {
      go(html, true);
    }

    public void go(String html, boolean findFirstTable) {
      tok = htmlcoarsetok(html);
      i = 1;
      if (findFirstTable)
        findTable();
    }

    public boolean findTable() {
      if (debug)
        print("Finding table.");
      for (; i < tok.size(); i += 2) if (isTag(tok.get(i), "table"))
        for (int j = i + 2; j < tok.size(); j += 2) if (isTag(tok.get(j), "/table")) {
          if (debug)
            print("Table found!");
          table = tok.subList(i - 1, j + 2);
          findRows();
          i = j;
          return true;
        }
      return false;
    }

    public void findRows() {
      List<String> tok = table;
      rows = new ArrayList<List<String>>();
      data = new ArrayList<List<String>>();
      int rowStart = 0;
      for (int i = 1; i < table.size(); i += 2) {
        if (isTag(tok.get(i), "tr"))
          rowStart = i;
        else if (isTag(tok.get(i), "/tr") && rowStart != 0) {
          List<String> row = table.subList(rowStart - 1, i + 2);
          rows.add(row);
          data.add(getData(row));
        }
      }
      if (debug)
        print(rows.size() + " row(s)");
      if (debug)
        print("Top left cell: " + data.get(0).get(0));
    }

    public boolean isTag(String token, String tag) {
      return token.regionMatches(true, 0, "<" + tag + " ", 0, tag.length() + 2) || token.regionMatches(true, 0, "<" + tag + ">", 0, tag.length() + 2);
    }

    public List<String> getData(List<String> row) {
      int colStart = 0;
      List<String> cols = new ArrayList();
      for (int i = 1; i < row.size(); i += 2) {
        String t = row.get(i);
        if (isTag(t, "td") || isTag(t, "th"))
          colStart = i;
        else if ((isTag(t, "/td") || isTag(t, "/th")) && colStart != 0)
          cols.add(join(row.subList(colStart + 1, i)));
      }
      return cols;
    }

    public List<String> getRow(int row) {
      return data.get(row);
    }

    public List<List<String>> rows() {
      return data;
    }
  }

  static public class IntRange {

    public int start, end;

    public IntRange() {
    }

    public IntRange(int start, int end) {
      this.end = end;
      this.start = start;
    }

    public IntRange(IntRange r) {
      start = r.start;
      end = r.end;
    }

    public boolean equals(Object o) {
      return stdEq2(this, o);
    }

    public int hashCode() {
      return stdHash2(this);
    }

    final public int length() {
      return end - start;
    }

    final public boolean empty() {
      return start >= end;
    }

    final public boolean isEmpty() {
      return start >= end;
    }

    static public String _fieldOrder = "start end";

    public String toString() {
      return "[" + start + ";" + end + "]";
    }
  }

  public interface PCallPolicy {

    public void handlePcallFail(Throwable e);
  }

  static public class MRUCache<A, B> extends LinkedHashMap<A, B> {

    public int maxSize = 10;

    public MRUCache() {
    }

    public MRUCache(int maxSize) {
      this.maxSize = maxSize;
    }

    public boolean removeEldestEntry(Map.Entry eldest) {
      return size() > maxSize;
    }

    public Object _serialize() {
      return ll(maxSize, cloneLinkedHashMap(this));
    }

    static public MRUCache _deserialize(List l) {
      MRUCache m = new MRUCache();
      m.maxSize = (int) first(l);
      m.putAll((LinkedHashMap) second(l));
      return m;
    }
  }

  static public interface Hasher<A> {

    public int hashCode(A a);

    public boolean equals(A a, A b);
  }

  static public interface IContentsIndexedList2<A> extends List<A> {

    public TreeSet<HasIndex> indicesOf_treeSetOfHasIndex(A o);
  }

  static abstract public class CloseableIterableIterator<A> extends IterableIterator<A> implements AutoCloseable {

    public void close() throws Exception {
    }
  }

  static public interface IFieldsToList {

    public Object[] _fieldsToList();
  }

  static public interface IF2<A, B, C> {

    public C get(A a, B b);
  }

  static public interface IVar<A> extends IF0<A> {

    public void set(A a);

    public A get();

    default public Class<A> getType() {
      return null;
    }

    default public IF0<A> getter() {
      return () -> get();
    }

    default public IVF1<A> setter() {
      return __1 -> set(__1);
    }

    default public boolean has() {
      return get() != null;
    }

    default public void clear() {
      set(null);
    }
  }

  static public interface IIntPred {

    public boolean get(int a);
  }

  static public class HasIndex implements Comparable<HasIndex> {

    public int idx;

    public HasIndex() {
    }

    public HasIndex(int idx) {
      this.idx = idx;
    }

    public int compareTo(HasIndex h) {
      return idx - h.idx;
    }

    final public int get() {
      return idx;
    }
  }

  static public class Cache<A> {

    public Object maker;

    public A value;

    public long loaded;

    static public boolean debug = false;

    public long changeCount;

    public Lock lock = lock();

    public Cache() {
    }

    public Cache(Object maker) {
      this.maker = maker;
    }

    public Cache(IF0<A> maker) {
      this.maker = maker;
    }

    public A get() {
      if (hasLock(lock))
        return value;
      Lock __0 = lock;
      lock(__0);
      try {
        if (loaded == 0) {
          value = make();
          changeCount++;
          loaded = sysNow();
        }
        return value;
      } finally {
        unlock(__0);
      }
    }

    public void clear() {
      Lock __1 = lock;
      lock(__1);
      try {
        if (debug && loaded != 0)
          print("Clearing cache");
        value = null;
        changeCount++;
        loaded = 0;
      } finally {
        unlock(__1);
      }
    }

    public void clear(double seconds) {
      Lock __2 = lock;
      lock(__2);
      try {
        if (seconds != 0 && loaded != 0 && sysNow() >= loaded + seconds * 1000)
          clear();
      } finally {
        unlock(__2);
      }
    }

    public void set(A a) {
      Lock __3 = lock;
      lock(__3);
      try {
        value = a;
        ++changeCount;
        loaded = sysNow();
      } finally {
        unlock(__3);
      }
    }

    public A make() {
      return (A) callF(maker);
    }
  }

  static public class EGDiff {

    public EGDiff(Object[] a, Object[] b) {
      Hashtable h = new Hashtable(a.length + b.length);
      filevec[0] = new file_data(a, h);
      filevec[1] = new file_data(b, h);
    }

    public int equiv_max = 1;

    public boolean heuristic = false;

    public boolean no_discards = false;

    public int[] xvec, yvec;

    public int[] fdiag;

    public int[] bdiag;

    public int fdiagoff, bdiagoff;

    final public file_data[] filevec = new file_data[2];

    public int cost;

    private int diag(int xoff, int xlim, int yoff, int ylim) {
      final int[] fd = fdiag;
      final int[] bd = bdiag;
      final int[] xv = xvec;
      final int[] yv = yvec;
      final int dmin = xoff - ylim;
      final int dmax = xlim - yoff;
      final int fmid = xoff - yoff;
      final int bmid = xlim - ylim;
      int fmin = fmid, fmax = fmid;
      int bmin = bmid, bmax = bmid;
      final boolean odd = (fmid - bmid & 1) != 0;
      fd[fdiagoff + fmid] = xoff;
      bd[bdiagoff + bmid] = xlim;
      for (int c = 1; ; ++c) {
        int d;
        boolean big_snake = false;
        if (fmin > dmin)
          fd[fdiagoff + --fmin - 1] = -1;
        else
          ++fmin;
        if (fmax < dmax)
          fd[fdiagoff + ++fmax + 1] = -1;
        else
          --fmax;
        for (d = fmax; d >= fmin; d -= 2) {
          int x, y, oldx, tlo = fd[fdiagoff + d - 1], thi = fd[fdiagoff + d + 1];
          if (tlo >= thi)
            x = tlo + 1;
          else
            x = thi;
          oldx = x;
          y = x - d;
          while (x < xlim && y < ylim && xv[x] == yv[y]) {
            ++x;
            ++y;
          }
          if (x - oldx > 20)
            big_snake = true;
          fd[fdiagoff + d] = x;
          if (odd && bmin <= d && d <= bmax && bd[bdiagoff + d] <= fd[fdiagoff + d]) {
            cost = 2 * c - 1;
            return d;
          }
        }
        if (bmin > dmin)
          bd[bdiagoff + --bmin - 1] = Integer.MAX_VALUE;
        else
          ++bmin;
        if (bmax < dmax)
          bd[bdiagoff + ++bmax + 1] = Integer.MAX_VALUE;
        else
          --bmax;
        for (d = bmax; d >= bmin; d -= 2) {
          int x, y, oldx, tlo = bd[bdiagoff + d - 1], thi = bd[bdiagoff + d + 1];
          if (tlo < thi)
            x = tlo;
          else
            x = thi - 1;
          oldx = x;
          y = x - d;
          while (x > xoff && y > yoff && xv[x - 1] == yv[y - 1]) {
            --x;
            --y;
          }
          if (oldx - x > 20)
            big_snake = true;
          bd[bdiagoff + d] = x;
          if (!odd && fmin <= d && d <= fmax && bd[bdiagoff + d] <= fd[fdiagoff + d]) {
            cost = 2 * c;
            return d;
          }
        }
        if (c > 200 && big_snake && heuristic) {
          int best = 0;
          int bestpos = -1;
          for (d = fmax; d >= fmin; d -= 2) {
            int dd = d - fmid;
            if ((fd[fdiagoff + d] - xoff) * 2 - dd > 12 * (c + (dd > 0 ? dd : -dd))) {
              if (fd[fdiagoff + d] * 2 - dd > best && fd[fdiagoff + d] - xoff > 20 && fd[fdiagoff + d] - d - yoff > 20) {
                int k;
                int x = fd[fdiagoff + d];
                for (k = 1; k <= 20; k++) if (xvec[x - k] != yvec[x - d - k])
                  break;
                if (k == 21) {
                  best = fd[fdiagoff + d] * 2 - dd;
                  bestpos = d;
                }
              }
            }
          }
          if (best > 0) {
            cost = 2 * c - 1;
            return bestpos;
          }
          best = 0;
          for (d = bmax; d >= bmin; d -= 2) {
            int dd = d - bmid;
            if ((xlim - bd[bdiagoff + d]) * 2 + dd > 12 * (c + (dd > 0 ? dd : -dd))) {
              if ((xlim - bd[bdiagoff + d]) * 2 + dd > best && xlim - bd[bdiagoff + d] > 20 && ylim - (bd[bdiagoff + d] - d) > 20) {
                int k;
                int x = bd[bdiagoff + d];
                for (k = 0; k < 20; k++) if (xvec[x + k] != yvec[x - d + k])
                  break;
                if (k == 20) {
                  best = (xlim - bd[bdiagoff + d]) * 2 + dd;
                  bestpos = d;
                }
              }
            }
          }
          if (best > 0) {
            cost = 2 * c - 1;
            return bestpos;
          }
        }
      }
    }

    private void compareseq(int xoff, int xlim, int yoff, int ylim) {
      while (xoff < xlim && yoff < ylim && xvec[xoff] == yvec[yoff]) {
        ++xoff;
        ++yoff;
      }
      while (xlim > xoff && ylim > yoff && xvec[xlim - 1] == yvec[ylim - 1]) {
        --xlim;
        --ylim;
      }
      if (xoff == xlim)
        while (yoff < ylim) filevec[1].changed_flag[1 + filevec[1].realindexes[yoff++]] = true;
      else if (yoff == ylim)
        while (xoff < xlim) filevec[0].changed_flag[1 + filevec[0].realindexes[xoff++]] = true;
      else {
        int d = diag(xoff, xlim, yoff, ylim);
        int c = cost;
        int b = bdiag[bdiagoff + d];
        if (c == 1) {
          throw new IllegalArgumentException("Empty subsequence");
        } else {
          compareseq(xoff, b, yoff, b - d);
          compareseq(b, xlim, b - d, ylim);
        }
      }
    }

    private void discard_confusing_lines() {
      filevec[0].discard_confusing_lines(filevec[1]);
      filevec[1].discard_confusing_lines(filevec[0]);
    }

    public boolean inhibit = false;

    private void shift_boundaries() {
      if (inhibit)
        return;
      filevec[0].shift_boundaries(filevec[1]);
      filevec[1].shift_boundaries(filevec[0]);
    }

    public interface ScriptBuilder {

      public change build_script(boolean[] changed0, int len0, boolean[] changed1, int len1);
    }

    static public class ReverseScript implements ScriptBuilder {

      public change build_script(final boolean[] changed0, int len0, final boolean[] changed1, int len1) {
        change script = null;
        int i0 = 0, i1 = 0;
        while (i0 < len0 || i1 < len1) {
          if (changed0[1 + i0] || changed1[1 + i1]) {
            int line0 = i0, line1 = i1;
            while (changed0[1 + i0]) ++i0;
            while (changed1[1 + i1]) ++i1;
            script = new change(line0, line1, i0 - line0, i1 - line1, script);
          }
          i0++;
          i1++;
        }
        return script;
      }
    }

    static public class ForwardScript implements ScriptBuilder {

      public change build_script(final boolean[] changed0, int len0, final boolean[] changed1, int len1) {
        change script = null;
        int i0 = len0, i1 = len1;
        while (i0 >= 0 || i1 >= 0) {
          if (changed0[i0] || changed1[i1]) {
            int line0 = i0, line1 = i1;
            while (changed0[i0]) --i0;
            while (changed1[i1]) --i1;
            script = new change(i0, i1, line0 - i0, line1 - i1, script);
          }
          i0--;
          i1--;
        }
        return script;
      }
    }

    public final static ScriptBuilder forwardScript = new ForwardScript(), reverseScript = new ReverseScript();

    public final change diff_2(final boolean reverse) {
      return diff(reverse ? reverseScript : forwardScript);
    }

    public change diff(final ScriptBuilder bld) {
      discard_confusing_lines();
      xvec = filevec[0].undiscarded;
      yvec = filevec[1].undiscarded;
      int diags = filevec[0].nondiscarded_lines + filevec[1].nondiscarded_lines + 3;
      fdiag = new int[diags];
      fdiagoff = filevec[1].nondiscarded_lines + 1;
      bdiag = new int[diags];
      bdiagoff = filevec[1].nondiscarded_lines + 1;
      compareseq(0, filevec[0].nondiscarded_lines, 0, filevec[1].nondiscarded_lines);
      fdiag = null;
      bdiag = null;
      shift_boundaries();
      return bld.build_script(filevec[0].changed_flag, filevec[0].buffered_lines, filevec[1].changed_flag, filevec[1].buffered_lines);
    }

    public static class change {

      public change link;

      public final int inserted;

      public final int deleted;

      public final int line0;

      public final int line1;

      public change(int line0, int line1, int deleted, int inserted, change old) {
        this.line0 = line0;
        this.line1 = line1;
        this.inserted = inserted;
        this.deleted = deleted;
        this.link = old;
      }
    }

    public class file_data {

      public void clear() {
        changed_flag = new boolean[buffered_lines + 2];
      }

      public int[] equivCount() {
        int[] equiv_count = new int[equiv_max];
        for (int i = 0; i < buffered_lines; ++i) ++equiv_count[equivs[i]];
        return equiv_count;
      }

      public void discard_confusing_lines(file_data f) {
        clear();
        final byte[] discarded = discardable(f.equivCount());
        filterDiscards(discarded);
        discard(discarded);
      }

      private byte[] discardable(final int[] counts) {
        final int end = buffered_lines;
        final byte[] discards = new byte[end];
        final int[] equivs = this.equivs;
        int many = 5;
        int tem = end / 64;
        while ((tem = tem >> 2) > 0) many *= 2;
        for (int i = 0; i < end; i++) {
          int nmatch;
          if (equivs[i] == 0)
            continue;
          nmatch = counts[equivs[i]];
          if (nmatch == 0)
            discards[i] = 1;
          else if (nmatch > many)
            discards[i] = 2;
        }
        return discards;
      }

      private void filterDiscards(final byte[] discards) {
        final int end = buffered_lines;
        for (int i = 0; i < end; i++) {
          if (discards[i] == 2)
            discards[i] = 0;
          else if (discards[i] != 0) {
            int j;
            int length;
            int provisional = 0;
            for (j = i; j < end; j++) {
              if (discards[j] == 0)
                break;
              if (discards[j] == 2)
                ++provisional;
            }
            while (j > i && discards[j - 1] == 2) {
              discards[--j] = 0;
              --provisional;
            }
            length = j - i;
            if (provisional * 4 > length) {
              while (j > i) if (discards[--j] == 2)
                discards[j] = 0;
            } else {
              int consec;
              int minimum = 1;
              int tem = length / 4;
              while ((tem = tem >> 2) > 0) minimum *= 2;
              minimum++;
              for (j = 0, consec = 0; j < length; j++) if (discards[i + j] != 2)
                consec = 0;
              else if (minimum == ++consec)
                j -= consec;
              else if (minimum < consec)
                discards[i + j] = 0;
              for (j = 0, consec = 0; j < length; j++) {
                if (j >= 8 && discards[i + j] == 1)
                  break;
                if (discards[i + j] == 2) {
                  consec = 0;
                  discards[i + j] = 0;
                } else if (discards[i + j] == 0)
                  consec = 0;
                else
                  consec++;
                if (consec == 3)
                  break;
              }
              i += length - 1;
              for (j = 0, consec = 0; j < length; j++) {
                if (j >= 8 && discards[i - j] == 1)
                  break;
                if (discards[i - j] == 2) {
                  consec = 0;
                  discards[i - j] = 0;
                } else if (discards[i - j] == 0)
                  consec = 0;
                else
                  consec++;
                if (consec == 3)
                  break;
              }
            }
          }
        }
      }

      private void discard(final byte[] discards) {
        final int end = buffered_lines;
        int j = 0;
        for (int i = 0; i < end; ++i) if (no_discards || discards[i] == 0) {
          undiscarded[j] = equivs[i];
          realindexes[j++] = i;
        } else
          changed_flag[1 + i] = true;
        nondiscarded_lines = j;
      }

      public file_data(Object[] data, Hashtable h) {
        buffered_lines = data.length;
        equivs = new int[buffered_lines];
        undiscarded = new int[buffered_lines];
        realindexes = new int[buffered_lines];
        for (int i = 0; i < data.length; ++i) {
          Integer ir = (Integer) h.get(data[i]);
          if (ir == null)
            h.put(data[i], new Integer(equivs[i] = equiv_max++));
          else
            equivs[i] = ir.intValue();
        }
      }

      public void shift_boundaries(file_data f) {
        final boolean[] changed = changed_flag;
        final boolean[] other_changed = f.changed_flag;
        int i = 0;
        int j = 0;
        int i_end = buffered_lines;
        int preceding = -1;
        int other_preceding = -1;
        for (; ; ) {
          int start, end, other_start;
          while (i < i_end && !changed[1 + i]) {
            while (other_changed[1 + j++]) other_preceding = j;
            i++;
          }
          if (i == i_end)
            break;
          start = i;
          other_start = j;
          for (; ; ) {
            while (i < i_end && changed[1 + i]) i++;
            end = i;
            if (end != i_end && equivs[start] == equivs[end] && !other_changed[1 + j] && end != i_end && !((preceding >= 0 && start == preceding) || (other_preceding >= 0 && other_start == other_preceding))) {
              changed[1 + end] = true;
              changed[1 + start++] = false;
              ++i;
              ++j;
            } else
              break;
          }
          preceding = i;
          other_preceding = j;
        }
      }

      final public int buffered_lines;

      final public int[] equivs;

      final public int[] undiscarded;

      final public int[] realindexes;

      public int nondiscarded_lines;

      public boolean[] changed_flag;
    }
  }

  static public class PingSourceCancelledException extends RuntimeException implements IFieldsToList {

    public PingSource pingSource;

    public PingSourceCancelledException() {
    }

    public PingSourceCancelledException(PingSource pingSource) {
      this.pingSource = pingSource;
    }

    public String toString() {
      return shortClassName_dropNumberPrefix(this) + "(" + pingSource + ")";
    }

    public Object[] _fieldsToList() {
      return new Object[] { pingSource };
    }
  }

  public interface ISleeper_v2 {

    default public Sleeping doLater(long targetTime, Runnable r) {
      return doLater(sysTimeToTimestamp(targetTime), r);
    }

    public Sleeping doLater(Timestamp targetTime, Runnable r);

    public default Sleeping doAfter(double seconds, Runnable r) {
      return doLater(tsNow().plusSeconds(seconds), r);
    }
  }

  static public interface ISetter<A> {

    public void set(A a);
  }

  static public class ThreadPool implements AutoCloseable {

    public int max = numberOfCores();

    public List<PooledThread> all = new ArrayList();

    public Set<PooledThread> used = new HashSet();

    public Set<PooledThread> free = new HashSet();

    public boolean verbose, retired;

    public class InternalPingSource extends PingSource {
    }

    public InternalPingSource internalPingSource = new InternalPingSource();

    public MultiSleeper sleeper = new MultiSleeper();

    public ThreadPool() {
    }

    public ThreadPool(int max) {
      this.max = max;
    }

    synchronized public int maxSize() {
      return max;
    }

    synchronized public int total() {
      return l(used) + l(free);
    }

    transient public Set<Runnable> onCustomerMustWaitAlert;

    public ThreadPool onCustomerMustWaitAlert(Runnable r) {
      onCustomerMustWaitAlert = createOrAddToSyncLinkedHashSet(onCustomerMustWaitAlert, r);
      return this;
    }

    public ThreadPool removeCustomerMustWaitAlertListener(Runnable r) {
      main.remove(onCustomerMustWaitAlert, r);
      return this;
    }

    public void customerMustWaitAlert() {
      if (onCustomerMustWaitAlert != null)
        for (var listener : onCustomerMustWaitAlert) pcallF_typed(listener);
    }

    public void fireCustomerMustWaitAlert() {
      vmBus_send("customerMustWaitAlert", this, currentThread());
      customerMustWaitAlert();
    }

    public PooledThread acquireThreadOrQueue(Runnable action) {
      if (action == null)
        return null;
      PooledThread t;
      synchronized (this) {
        if (_hasFreeAfterCreating()) {
          t = _firstFreeThread();
          markUsed(t);
        } else
          t = _anyThread();
      }
      t.addWork(action);
      return t;
    }

    public boolean _hasFreeAfterCreating() {
      checkNotRetired();
      if (nempty(free))
        return true;
      if (total() < max) {
        PooledThread t = newThread();
        all.add(t);
        free.add(t);
        return true;
      }
      return false;
    }

    public PooledThread acquireThreadOrWait(Runnable action) {
      try {
        if (action == null)
          return null;
        PooledThread t;
        while (true) {
          synchronized (this) {
            if (_hasFreeAfterCreating()) {
              t = _firstFreeThread();
              break;
            } else
              _waitWaitWait();
          }
        }
        t.addWork(action);
        return t;
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }

    public PooledThread _firstFreeThread() {
      return first(free);
    }

    public PooledThread _anyThread() {
      return random(used);
    }

    public class PooledThread extends Thread {

      public PooledThread(String name) {
        super(name);
      }

      public AppendableChain<Runnable> q;

      synchronized public Runnable _grabWorkOrSleep() {
        try {
          Runnable r = first(q);
          if (r == null) {
            markFree(this);
            if (verbose)
              print("Thread sleeps");
            synchronized (this) {
              wait();
            }
            if (verbose)
              print("Thread woke up");
            return null;
          }
          q = popFirst(q);
          return r;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public void run() {
        try {
          pingSource_tl().set(internalPingSource);
          while (!retired()) {
            ping();
            Runnable r = _grabWorkOrSleep();
            if (verbose)
              print(this + " work: " + r);
            if (r != null)
              try {
                if (verbose)
                  print(this + " running: " + r);
                r.run();
                pingSource_tl().set(internalPingSource);
                if (verbose)
                  print(this + " done");
              } catch (Throwable e) {
                pingSource_tl().set(internalPingSource);
                if (verbose)
                  print(this + " error");
                printStackTrace(e);
              } finally {
                pingSource_tl().set(internalPingSource);
                if (verbose)
                  print("ThreadPool finally");
              }
          }
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      synchronized public boolean isEmpty() {
        return empty(q);
      }

      public void addWork(Runnable r) {
        if (verbose)
          print("Added work to " + this + ": " + r);
        synchronized (this) {
          q = chainPlus(q, r);
          notifyAll();
        }
      }
    }

    public PooledThread newThread() {
      PooledThread t = new PooledThread("Thread Pool Inhabitant " + n2(total() + 1));
      t.start();
      return t;
    }

    synchronized public void markFree(PooledThread t) {
      used.remove(t);
      free.add(t);
      notifyAll();
    }

    synchronized public void markUsed(PooledThread t) {
      free.remove(t);
      used.add(t);
    }

    synchronized public String toString() {
      return retired() ? "Retired ThreadPool" : "ThreadPool " + roundBracket(commaCombine(n2(used) + " used out of " + n2(total()), max <= total() ? null : "could grow to " + n2(max)));
    }

    synchronized public boolean retired() {
      return retired;
    }

    synchronized public void retire() {
      if (verbose)
        print("ThreadPool Retiring");
      retired = true;
      for (var thread : free) syncNotifyAll(thread);
    }

    public void checkNotRetired() {
      if (retired())
        throw fail("retired");
    }

    synchronized public void close() {
      try {
        retire();
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }

    public void _waitWaitWait() {
      try {
        do {
          fireCustomerMustWaitAlert();
          wait();
          checkNotRetired();
        } while (empty(free));
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }

    public void dO(String text, Runnable r) {
      if (r == null)
        return;
      new PingSource(this, text).dO(r);
    }

    public ISleeper_v2 sleeper() {
      return sleeper;
    }
  }

  static public interface IAutoCloseableF0<A> extends IF0<A>, AutoCloseable {
  }

  public interface IMultiMap<A, B> {

    public Set<A> keySet();

    public Collection<B> get(A a);

    public int size();

    public int keyCount();
  }

  static public class UnsynchronizedCompactHashSet<A> extends java.util.AbstractSet<A> {

    final static public int INITIAL_SIZE = 3;

    public final static double LOAD_FACTOR = 0.75;

    final static public Object nullObject = new Object();

    final static public Object deletedObject = new Object();

    public int elements;

    public int freecells;

    public A[] objects;

    public int modCount;

    public UnsynchronizedCompactHashSet() {
      this(INITIAL_SIZE);
    }

    public UnsynchronizedCompactHashSet(int size) {
      objects = (A[]) new Object[(size == 0 ? 1 : size)];
      elements = 0;
      freecells = objects.length;
      modCount = 0;
    }

    public UnsynchronizedCompactHashSet(Collection<A> c) {
      this(c.size());
      addAll(c);
    }

    @Override
    public Iterator<A> iterator() {
      return new CompactHashIterator<A>();
    }

    @Override
    public int size() {
      return elements;
    }

    @Override
    public boolean isEmpty() {
      return elements == 0;
    }

    @Override
    public boolean contains(Object o) {
      return find(o) != null;
    }

    public A find(Object o) {
      if (o == null)
        o = nullObject;
      int hash = o.hashCode();
      int index = (hash & 0x7FFFFFFF) % objects.length;
      int offset = 1;
      while (objects[index] != null && !(objects[index].hashCode() == hash && objects[index].equals(o))) {
        index = ((index + offset) & 0x7FFFFFFF) % objects.length;
        offset = offset * 2 + 1;
        if (offset == -1)
          offset = 2;
      }
      return objects[index];
    }

    public boolean removeIfSame(Object o) {
      A value = find(o);
      if (value == o) {
        remove(value);
        return true;
      }
      return false;
    }

    @Override
    public boolean add(Object o) {
      if (o == null)
        o = nullObject;
      int hash = o.hashCode();
      int index = (hash & 0x7FFFFFFF) % objects.length;
      int offset = 1;
      int deletedix = -1;
      while (objects[index] != null && !(objects[index].hashCode() == hash && objects[index].equals(o))) {
        if (objects[index] == deletedObject)
          deletedix = index;
        index = ((index + offset) & 0x7FFFFFFF) % objects.length;
        offset = offset * 2 + 1;
        if (offset == -1)
          offset = 2;
      }
      if (objects[index] == null) {
        if (deletedix != -1)
          index = deletedix;
        else
          freecells--;
        modCount++;
        elements++;
        objects[index] = (A) o;
        if (1 - (freecells / (double) objects.length) > LOAD_FACTOR)
          rehash();
        return true;
      } else
        return false;
    }

    @Override
    public boolean remove(Object o) {
      if (o == null)
        o = nullObject;
      int hash = o.hashCode();
      int index = (hash & 0x7FFFFFFF) % objects.length;
      int offset = 1;
      while (objects[index] != null && !(objects[index].hashCode() == hash && objects[index].equals(o))) {
        index = ((index + offset) & 0x7FFFFFFF) % objects.length;
        offset = offset * 2 + 1;
        if (offset == -1)
          offset = 2;
      }
      if (objects[index] != null) {
        objects[index] = (A) deletedObject;
        modCount++;
        elements--;
        return true;
      } else
        return false;
    }

    @Override
    public void clear() {
      elements = 0;
      for (int ix = 0; ix < objects.length; ix++) objects[ix] = null;
      freecells = objects.length;
      modCount++;
    }

    @Override
    public Object[] toArray() {
      Object[] result = new Object[elements];
      Object[] objects = this.objects;
      int pos = 0;
      for (int i = 0; i < objects.length; i++) if (objects[i] != null && objects[i] != deletedObject) {
        if (objects[i] == nullObject)
          result[pos++] = null;
        else
          result[pos++] = objects[i];
      }
      return result;
    }

    @Override
    public <T> T[] toArray(T[] a) {
      int size = elements;
      if (a.length < size)
        a = (T[]) java.lang.reflect.Array.newInstance(a.getClass().getComponentType(), size);
      A[] objects = this.objects;
      int pos = 0;
      for (int i = 0; i < objects.length; i++) if (objects[i] != null && objects[i] != deletedObject) {
        if (objects[i] == nullObject)
          a[pos++] = null;
        else
          a[pos++] = (T) objects[i];
      }
      return a;
    }

    public void rehash() {
      int garbagecells = objects.length - (elements + freecells);
      if (garbagecells / (double) objects.length > 0.05)
        rehash(objects.length);
      else
        rehash(objects.length * 2 + 1);
    }

    public void rehash(int newCapacity) {
      int oldCapacity = objects.length;
      @SuppressWarnings("unchecked")
      A[] newObjects = (A[]) new Object[newCapacity];
      for (int ix = 0; ix < oldCapacity; ix++) {
        Object o = objects[ix];
        if (o == null || o == deletedObject)
          continue;
        int hash = o.hashCode();
        int index = (hash & 0x7FFFFFFF) % newCapacity;
        int offset = 1;
        while (newObjects[index] != null) {
          index = ((index + offset) & 0x7FFFFFFF) % newCapacity;
          offset = offset * 2 + 1;
          if (offset == -1)
            offset = 2;
        }
        newObjects[index] = (A) o;
      }
      objects = newObjects;
      freecells = objects.length - elements;
    }

    public class CompactHashIterator<T> implements Iterator<T> {

      public int index;

      public int lastReturned = -1;

      public int expectedModCount;

      @SuppressWarnings("empty-statement")
      public CompactHashIterator() {
        for (index = 0; index < objects.length && (objects[index] == null || objects[index] == deletedObject); index++) ;
        expectedModCount = modCount;
      }

      @Override
      public boolean hasNext() {
        return index < objects.length;
      }

      @SuppressWarnings("empty-statement")
      @Override
      public T next() {
        int length = objects.length;
        if (index >= length) {
          lastReturned = -2;
          throw new NoSuchElementException();
        }
        lastReturned = index;
        for (index += 1; index < length && (objects[index] == null || objects[index] == deletedObject); index++) ;
        if (objects[lastReturned] == nullObject)
          return null;
        else
          return (T) objects[lastReturned];
      }

      @Override
      public void remove() {
        if (modCount != expectedModCount)
          throw new ConcurrentModificationException();
        if (lastReturned == -1 || lastReturned == -2)
          throw new IllegalStateException();
        if (objects[lastReturned] != null && objects[lastReturned] != deletedObject) {
          objects[lastReturned] = (A) deletedObject;
          elements--;
          modCount++;
          expectedModCount = modCount;
        }
      }
    }

    public int capacity() {
      return objects.length;
    }

    public boolean shrinkToFactor(double factor) {
      if (factor > LOAD_FACTOR)
        throw fail("Shrink factor must be equal to or smaller than load factor: " + factor + " / " + LOAD_FACTOR);
      int newCapacity = max(INITIAL_SIZE, iround(size() / factor));
      if (newCapacity >= capacity())
        return false;
      rehash(newCapacity);
      return true;
    }
  }

  abstract static public class Sleeping implements AutoCloseable, IFieldsToList {

    public Timestamp targetTime;

    public Runnable action;

    public Sleeping() {
    }

    public Sleeping(Timestamp targetTime, Runnable action) {
      this.action = action;
      this.targetTime = targetTime;
    }

    public String toString() {
      return shortClassName_dropNumberPrefix(this) + "(" + targetTime + ", " + action + ")";
    }

    public Object[] _fieldsToList() {
      return new Object[] { targetTime, action };
    }

    public long remainingMS() {
      return targetTime.minus(tsNow());
    }
  }

  static public class AppendableChain<A> extends MinimalChain<A> implements Iterable<A>, IntSize {

    public MinimalChain<A> last;

    final public int getSize() {
      return size();
    }

    public int size() {
      return size;
    }

    public int size;

    public AppendableChain() {
    }

    public AppendableChain(A element) {
      this.element = element;
      size = 1;
      last = this;
    }

    public AppendableChain(A element, AppendableChain<A> next) {
      this.next = next;
      this.element = element;
      if (next == null)
        return;
      MinimalChain<A> b = new MinimalChain();
      b.element = next.element;
      b.next = next.next;
      this.next = b;
      last = next.last;
      size = next.size + 1;
    }

    public String toString() {
      return str(toList());
    }

    public boolean add(A a) {
      MinimalChain newLast = new MinimalChain(a);
      last.next = newLast;
      last = newLast;
      ++size;
      return true;
    }

    public AppendableChain<A> popFirst() {
      if (next == null)
        return null;
      element = next.element;
      if (last == next)
        last = this;
      next = next.next;
      --size;
      return this;
    }

    public ArrayList<A> toList() {
      ArrayList<A> l = emptyList(size);
      MinimalChain<A> c = this;
      while (c != null) {
        l.add(c.element);
        c = c.next;
      }
      return l;
    }

    public class ACIt extends IterableIterator<A> {

      public MinimalChain<A> c = AppendableChain.this;

      public boolean hasNext() {
        return c != null;
      }

      public A next() {
        var a = c.element;
        c = c.next;
        return a;
      }
    }

    public IterableIterator<A> iterator() {
      return new ACIt();
    }
  }

  static public class MultiSleeper extends RestartableCountdown implements ISleeper_v2 {

    public MultiSetMap<Timestamp, Runnable> entries = treeMultiSetMap();

    public void check() {
      var time = nextWakeUpTime();
      var action = firstValue(entries);
      setTargetTime(time == null ? 0 : time.sysTime(), new Runnable() {

        public void run() {
          try {
            Set<Runnable> toCall;
            synchronized (MultiSleeper.this) {
              toCall = entries.get(time);
              entries.remove(time);
              check();
            }
            pcallFAll(toCall);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "Set<Runnable> toCall;\r\n      synchronized(MultiSleeper.this) {\r\n        toCal...";
        }
      });
    }

    synchronized public void removeEntry(Timestamp targetTime, Runnable action) {
      entries.remove(targetTime, action);
    }

    synchronized public Timestamp nextWakeUpTime() {
      return firstKey(entries);
    }

    public synchronized Sleeping doLater(Timestamp targetTime, Runnable r) {
      if (r == null || targetTime == null)
        return null;
      targetTime = max(targetTime, tsNow());
      entries.put(targetTime, r);
      check();
      return new Sleeping(targetTime, r) {

        public void close() {
          try {
            removeEntry(targetTime, r);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }
      };
    }
  }

  static public class Timestamp implements Comparable<Timestamp>, IFieldsToList {

    public long date;

    public Timestamp(long date) {
      this.date = date;
    }

    public boolean equals(Object o) {
      if (!(o instanceof Timestamp))
        return false;
      Timestamp __1 = (Timestamp) o;
      return date == __1.date;
    }

    public int hashCode() {
      int h = 2059094262;
      h = boostHashCombine(h, _hashCode(date));
      return h;
    }

    public Object[] _fieldsToList() {
      return new Object[] { date };
    }

    public Timestamp() {
      date = now();
    }

    public Timestamp(Date date) {
      if (date != null)
        this.date = date.getTime();
    }

    final public long toLong() {
      return unixDate();
    }

    public long unixDate() {
      return date;
    }

    public long unixSeconds() {
      return unixDate() / 1000;
    }

    public String toString() {
      return formatLocalDateWithSeconds(date);
    }

    public int compareTo(Timestamp t) {
      return t == null ? 1 : cmp(date, t.date);
    }

    public Timestamp plus(Seconds seconds) {
      return plus(seconds == null ? null : seconds.getDouble());
    }

    final public Timestamp plusSeconds(double seconds) {
      return plus(seconds);
    }

    public Timestamp plus(double seconds) {
      return new Timestamp(date + toMS(seconds));
    }

    public long minus(Timestamp ts) {
      return unixDate() - ts.unixDate();
    }

    public long sysTime() {
      return clockTimeToSystemTime(date);
    }

    public Duration minusAsDuration(Timestamp ts) {
      return Duration.ofMillis(minus(ts));
    }
  }

  static public class MultiSetMap<A, B> implements IMultiMap<A, B> {

    public Map<A, Set<B>> data = new HashMap<A, Set<B>>();

    public int size;

    public MultiSetMap() {
    }

    public MultiSetMap(boolean useTreeMap) {
      if (useTreeMap)
        data = new TreeMap();
    }

    public MultiSetMap(MultiSetMap<A, B> map) {
      putAll(map);
    }

    public MultiSetMap(Map<A, Set<B>> data) {
      this.data = data;
    }

    public boolean put(A key, B value) {
      synchronized (data) {
        Set<B> set = data.get(key);
        if (set == null)
          data.put(key, set = _makeEmptySet());
        if (!set.add(value))
          return false;
        {
          ++size;
          return true;
        }
      }
    }

    public boolean add(A key, B value) {
      return put(key, value);
    }

    public void addAll(A key, Collection<B> values) {
      synchronized (data) {
        putAll(key, values);
      }
    }

    public void addAllIfNotThere(A key, Collection<B> values) {
      synchronized (data) {
        for (B value : values) setPut(key, value);
      }
    }

    public void setPut(A key, B value) {
      synchronized (data) {
        if (!containsPair(key, value))
          put(key, value);
      }
    }

    final public boolean contains(A key, B value) {
      return containsPair(key, value);
    }

    public boolean containsPair(A key, B value) {
      synchronized (data) {
        return get(key).contains(value);
      }
    }

    public void putAll(A key, Collection<B> values) {
      synchronized (data) {
        for (B value : values) put(key, value);
      }
    }

    public void removeAll(A key, Collection<B> values) {
      synchronized (data) {
        for (B value : values) remove(key, value);
      }
    }

    public Set<B> get(A key) {
      synchronized (data) {
        Set<B> set = data.get(key);
        return set == null ? Collections.<B>emptySet() : set;
      }
    }

    public List<B> getAndClear(A key) {
      synchronized (data) {
        List<B> l = cloneList(data.get(key));
        remove(key);
        return l;
      }
    }

    public Set<B> getOpt(A key) {
      synchronized (data) {
        return data.get(key);
      }
    }

    public Set<B> getActual(A key) {
      synchronized (data) {
        Set<B> set = data.get(key);
        if (set == null)
          data.put(key, set = _makeEmptySet());
        return set;
      }
    }

    public void clean(A key) {
      synchronized (data) {
        Set<B> list = data.get(key);
        if (list != null && list.isEmpty())
          data.remove(key);
      }
    }

    final public Set<A> keys() {
      return keySet();
    }

    public Set<A> keySet() {
      synchronized (data) {
        return data.keySet();
      }
    }

    public void remove(A key) {
      synchronized (data) {
        size -= l(data.get(key));
        data.remove(key);
      }
    }

    public void remove(A key, B value) {
      synchronized (data) {
        Set<B> set = data.get(key);
        if (set != null) {
          if (set.remove(value)) {
            --size;
            if (set.isEmpty())
              data.remove(key);
          }
        }
      }
    }

    public void clear() {
      synchronized (data) {
        data.clear();
        size = 0;
      }
    }

    public boolean containsKey(A key) {
      synchronized (data) {
        return data.containsKey(key);
      }
    }

    public B getFirst(A key) {
      synchronized (data) {
        return first(get(key));
      }
    }

    public void addAll(MultiSetMap<A, B> map) {
      putAll(map);
    }

    public void putAll(MultiSetMap<A, B> map) {
      synchronized (data) {
        for (A key : map.keySet()) putAll(key, map.get(key));
      }
    }

    public void putAll(Map<A, B> map) {
      synchronized (data) {
        if (map != null)
          for (Map.Entry<A, B> e : map.entrySet()) put(e.getKey(), e.getValue());
      }
    }

    final public int keyCount() {
      return keysSize();
    }

    public int keysSize() {
      synchronized (data) {
        return l(data);
      }
    }

    public int size() {
      synchronized (data) {
        return size;
      }
    }

    public int getSize(A key) {
      return l(data.get(key));
    }

    public int count(A key) {
      return getSize(key);
    }

    public Set<A> reverseGet(B b) {
      synchronized (data) {
        Set<A> l = new HashSet();
        for (A key : data.keySet()) if (data.get(key).contains(b))
          l.add(key);
        return l;
      }
    }

    public A keyForValue(B b) {
      synchronized (data) {
        for (A key : data.keySet()) if (data.get(key).contains(b))
          return key;
        return null;
      }
    }

    public Map<A, Set<B>> asMap() {
      synchronized (data) {
        return cloneMap(data);
      }
    }

    public boolean isEmpty() {
      synchronized (data) {
        return data.isEmpty();
      }
    }

    public Set<B> _makeEmptySet() {
      return new HashSet();
    }

    public Collection<Set<B>> allLists() {
      synchronized (data) {
        return new HashSet(data.values());
      }
    }

    public List<B> allValues() {
      return concatLists(values(data));
    }

    public List<Pair<A, B>> allEntries() {
      synchronized (data) {
        List<Pair<A, B>> l = emptyList(size);
        for (Map.Entry<? extends A, ? extends Set<B>> __0 : _entrySet(data)) {
          A a = __0.getKey();
          Set<B> set = __0.getValue();
          for (B b : set) l.add(pair(a, b));
        }
        return l;
      }
    }

    public Object mutex() {
      return data;
    }

    public String toString() {
      return "mm" + str(data);
    }

    public Pair<A, B> firstEntry() {
      synchronized (data) {
        if (empty(data))
          return null;
        Map.Entry<A, Set<B>> entry = data.entrySet().iterator().next();
        return pair(entry.getKey(), first(entry.getValue()));
      }
    }

    public A firstKey() {
      synchronized (data) {
        return main.firstKey(data);
      }
    }

    public A lastKey() {
      synchronized (data) {
        return (A) ((NavigableMap) data).lastKey();
      }
    }

    public A higherKey(Object a) {
      synchronized (data) {
        return (A) ((NavigableMap) data).higherKey(a);
      }
    }
  }

  static public class MinimalChain<A> implements Iterable<A> {

    public A element;

    public MinimalChain<A> next;

    public MinimalChain() {
    }

    public MinimalChain(A element) {
      this.element = element;
    }

    public MinimalChain(A element, MinimalChain<A> next) {
      this.next = next;
      this.element = element;
    }

    public String toString() {
      return str(toList());
    }

    public ArrayList<A> toList() {
      ArrayList<A> l = new ArrayList();
      MinimalChain<A> c = this;
      while (c != null) {
        l.add(c.element);
        c = c.next;
      }
      return l;
    }

    public void setElement(A a) {
      element = a;
    }

    public void setNext(MinimalChain<A> next) {
      this.next = next;
    }

    public Iterator<A> iterator() {
      return toList().iterator();
    }

    public A get() {
      return element;
    }
  }

  static public class RestartableCountdown implements AutoCloseable {

    public java.util.Timer timer;

    public long targetTime;

    public long totalSleepTime;

    synchronized public void setTargetTime(long targetTime, Runnable action) {
      if (targetTime <= 0)
        stop();
      else if (targetTime != this.targetTime) {
        start(targetTime - sysNow(), action);
        this.targetTime = targetTime;
      }
    }

    synchronized public void start(long delayMS, Object action) {
      stop();
      if (delayMS <= 0) {
        startThread(new Runnable() {

          public void run() {
            try {
              callF(action);
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "callF(action);";
          }
        });
      } else {
        totalSleepTime += delayMS;
        timer = doLater_daemon(delayMS, action);
        targetTime = sysNow() + delayMS;
      }
    }

    public void start(double delaySeconds, Object action) {
      start(toMS(delaySeconds), action);
    }

    synchronized public void stop() {
      cancelTimer(timer);
      timer = null;
      targetTime = 0;
    }

    public void close() {
      stop();
    }
  }

  static public class Seconds implements Comparable<Seconds>, IFieldsToList {

    public double seconds;

    public Seconds() {
    }

    public Seconds(double seconds) {
      this.seconds = seconds;
    }

    public boolean equals(Object o) {
      if (!(o instanceof Seconds))
        return false;
      Seconds __1 = (Seconds) o;
      return seconds == __1.seconds;
    }

    public int hashCode() {
      int h = -660217249;
      h = boostHashCombine(h, _hashCode(seconds));
      return h;
    }

    public Object[] _fieldsToList() {
      return new Object[] { seconds };
    }

    final public double get() {
      return seconds();
    }

    final public double getDouble() {
      return seconds();
    }

    public double seconds() {
      return seconds;
    }

    public String toString() {
      return formatDouble(seconds, 3) + " s";
    }

    public int compareTo(Seconds s) {
      return cmp(seconds, s.seconds);
    }

    public Seconds div(double x) {
      return new Seconds(get() / x);
    }

    public Seconds minus(Seconds x) {
      return new Seconds(get() - x.get());
    }
  }

  static public Class<?> getClass(String name) {
    return _getClass(name);
  }

  static public Class getClass(Object o) {
    return _getClass(o);
  }

  static public Class getClass(Object realm, String name) {
    return _getClass(realm, name);
  }

  static public boolean classIsExportedTo(Class c, java.lang.Module destModule) {
    if (c == null || destModule == null)
      return false;
    java.lang.Module srcModule = c.getModule();
    String packageName = c.getPackageName();
    return srcModule.isExported(packageName, destModule);
  }

  static public boolean isAbstract(Class c) {
    return (c.getModifiers() & Modifier.ABSTRACT) != 0;
  }

  static public boolean isAbstract(Method m) {
    return (m.getModifiers() & Modifier.ABSTRACT) != 0;
  }

  static public boolean reflection_isForbiddenMethod(Method m) {
    return m.getDeclaringClass() == Object.class && eqOneOf(m.getName(), "finalize", "clone", "registerNatives");
  }

  static public <A, B> void multiMapPut(Map<A, List<B>> map, A a, B b) {
    List<B> l = map.get(a);
    if (l == null)
      map.put(a, l = new ArrayList());
    l.add(b);
  }

  static public <A, B> void multiMapPut(MultiMap<A, B> mm, A key, B value) {
    if (mm != null && key != null && value != null)
      mm.put(key, value);
  }

  static public Set<Class> allInterfacesImplementedBy(Object o) {
    return allInterfacesImplementedBy(_getClass(o));
  }

  static public Set<Class> allInterfacesImplementedBy(Class c) {
    if (c == null)
      return null;
    HashSet<Class> set = new HashSet();
    allInterfacesImplementedBy_find(c, set);
    return set;
  }

  static public void allInterfacesImplementedBy_find(Class c, Set<Class> set) {
    if (c.isInterface() && !set.add(c))
      return;
    do {
      for (Class intf : c.getInterfaces()) allInterfacesImplementedBy_find(intf, set);
    } while ((c = c.getSuperclass()) != null);
  }

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

  static public Method findStaticMethod(Class c, String method, Object... args) {
    Class _c = c;
    while (c != null) {
      for (Method m : c.getDeclaredMethods()) {
        if (!m.getName().equals(method))
          continue;
        if ((m.getModifiers() & Modifier.STATIC) == 0 || !findStaticMethod_checkArgs(m, args))
          continue;
        return m;
      }
      c = c.getSuperclass();
    }
    return null;
  }

  static public boolean findStaticMethod_checkArgs(Method m, Object[] args) {
    Class<?>[] types = m.getParameterTypes();
    if (types.length != args.length)
      return false;
    for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i])))
      return false;
    return true;
  }

  static public void add(BitSet bs, int i) {
    bs.set(i);
  }

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

  static public void add(Container c, Component x) {
    addToContainer(c, x);
  }

  static public long add(AtomicLong l, long b) {
    return l.addAndGet(b);
  }

  static public <A> Iterator<A> iteratorOrNull(Iterable<A> c) {
    return c == null ? null : c.iterator();
  }

  static public <A> List<A> sortInPlace(List<A> l, final Object comparator) {
    return sortedInPlace(l, comparator);
  }

  static public <A> List<A> sortInPlace(List<A> l) {
    return sortedInPlace(l);
  }

  static public int _hashCode(Object a) {
    return a == null ? 0 : a.hashCode();
  }

  static public Object metaGet(IMeta o, Object key) {
    return metaMapGet(o, key);
  }

  static public Object metaGet(Object o, Object key) {
    return metaMapGet(o, key);
  }

  static public Object metaGet(String key, IMeta o) {
    return metaMapGet(o, key);
  }

  static public Object metaGet(String key, Object o) {
    return metaMapGet(o, key);
  }

  static public Object metaMapGet(IMeta o, Object key) {
    return o == null ? null : o.metaGet(key);
  }

  static public Object metaMapGet(Object o, Object key) {
    return metaMapGet(toIMeta(o), key);
  }

  static public void metaPut(IMeta o, Object key, Object value) {
    metaMapPut(o, key, value);
  }

  static public void metaPut(Object o, Object key, Object value) {
    metaMapPut(o, key, value);
  }

  static public Map convertObjectMetaToMap(IMeta o) {
    return convertObjectMetaToMap(o, () -> makeObjectMetaMap());
  }

  static public Map convertObjectMetaToMap(IMeta o, IF0<Map> createEmptyMap) {
    if (o == null)
      return null;
    Object meta = o._getMeta();
    if (meta instanceof Map)
      return ((Map) meta);
    var mutex = tempMetaMutex(o);
    try {
      var actualMutex = mutex.get();
      synchronized (actualMutex) {
        meta = o._getMeta();
        if (meta instanceof Map)
          return ((Map) meta);
        Map map = createEmptyMap.get();
        if (meta != null)
          map.put("previousMeta", meta);
        o._setMeta(map);
        return map;
      }
    } finally {
      _close(mutex);
    }
  }

  static public <A, B> void syncMapPutOrRemove(Map<A, B> map, A key, B value) {
    syncMapPut2(map, key, value);
  }

  static public <A, B> Map<A, B> putAll(Map<A, B> a, Map<? extends A, ? extends B> b) {
    if (a != null && b != null)
      a.putAll(b);
    return a;
  }

  static public <A, B> MultiMap<A, B> putAll(MultiMap<A, B> a, Map<? extends A, ? extends B> b) {
    if (a != null)
      a.putAll((Map) b);
    return a;
  }

  static public <A, B> Map<A, B> putAll(Map<A, B> a, Object... b) {
    if (a != null)
      litmap_impl(a, b);
    return a;
  }

  static public <A, B> void put(Map<A, B> map, A a, B b) {
    if (map != null)
      map.put(a, b);
  }

  static public <A> void put(List<A> l, int i, A a) {
    if (l != null && i >= 0 && i < l(l))
      l.set(i, a);
  }

  static public <A> A getAndClear(IVar<A> v) {
    A a = v.get();
    v.set(null);
    return a;
  }

  static public <A, B> Set<A> keySet(Map<A, B> map) {
    return map == null ? new HashSet() : map.keySet();
  }

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

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

  static public <A, B> Set<A> keySet(MultiMap<A, B> mm) {
    return mm.keySet();
  }

  static public <A, B> int keysSize(MultiMap<A, B> mm) {
    return lKeys(mm);
  }

  static public <A> A reverseGet(List<A> l, int idx) {
    if (l == null || idx < 0)
      return null;
    int n = l(l);
    return idx < n ? l.get(n - 1 - idx) : null;
  }

  static public <A, B> Map<A, B> cloneMap(Map<A, B> map) {
    if (map == null)
      return new HashMap();
    synchronized (map) {
      return map instanceof TreeMap ? new TreeMap((TreeMap) map) : map instanceof LinkedHashMap ? new LinkedHashMap(map) : new HashMap(map);
    }
  }

  static public <A, B> List<B> cloneMap(Iterable<A> l, IF1<A, B> f) {
    List x = emptyList(l);
    if (l != null)
      for (A o : cloneList(l)) x.add(f.get(o));
    return x;
  }

  static public <A, B, C extends Collection<B>> List<B> allValues(Map<A, C> map) {
    List<B> out = new ArrayList();
    for (var l : values(map)) addAll(out, l);
    return out;
  }

  static public <A extends JSpinner> A onChange(A spinner, Object r) {
    return onChange(spinner, toRunnable(r));
  }

  static public <A extends JSpinner> A onChange(A spinner, Runnable r) {
    if (r != null) {
      swing(() -> {
        spinner.addChangeListener(changeListener(r));
      });
    }
    return spinner;
  }

  static public <A extends AbstractButton> A onChange(A b, Runnable r) {
    {
      swing(() -> {
        b.addItemListener(itemListener(r));
      });
    }
    return b;
  }

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

  static public <A extends JSlider> A onChange(A slider, Runnable r) {
    {
      swing(() -> {
        slider.addChangeListener(changeListener(r));
      });
    }
    return slider;
  }

  static public <A> JComboBox<A> onChange(JComboBox<A> cb, ChangeTriggerable r) {
    return onChange(cb, new ChangeTrigger(r));
  }

  static public <A> JComboBox<A> onChange(JComboBox<A> cb, IVF1<A> f) {
    if (f != null)
      addActionListener(cb, () -> f.get(getSelectedItem_typed(cb)));
    return cb;
  }

  static public JComboBox onChange(JComboBox cb, Runnable r) {
    if (isEditableComboBox(cb))
      onChange(textFieldFromComboBox(cb), r);
    else
      onSelectedItem(cb, runnableToIVF1(r));
    return cb;
  }

  static public <A extends JTabbedPane> A onChange(A tabs, Runnable r) {
    {
      swing(() -> {
        tabs.addChangeListener(changeListener(r));
      });
    }
    return tabs;
  }

  static public <A extends JColorChooser> A onChange(Runnable r, A cc) {
    if (cc != null && r != null) {
      swing(() -> {
        cc.getSelectionModel().addChangeListener(changeListener(r));
      });
    }
    return cc;
  }

  static public <A extends IHasChangeListeners> A onChange(A a, ChangeTriggerable b) {
    if (a != null && b != null)
      a.onChange(new ChangeTrigger(b));
    return a;
  }

  static public <A extends IHasChangeListeners> A onChange(A a, Updateable b) {
    if (a != null && b != null)
      a.onChange(new UpdateTrigger(b));
    return a;
  }

  static public <A extends IHasChangeListeners> A onChange(A a, Runnable r) {
    if (a != null && r != null)
      a.onChange(r);
    return a;
  }

  static public <A> A set(A o, String field, Object value) {
    if (o == null)
      return null;
    if (o instanceof Class)
      set((Class) o, field, value);
    else
      try {
        Field f = set_findField(o.getClass(), field);
        makeAccessible(f);
        smartSet(f, o, value);
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
    return o;
  }

  static public void set(Class c, String field, Object value) {
    if (c == null)
      return;
    try {
      Field f = set_findStaticField(c, field);
      makeAccessible(f);
      smartSet(f, null, value);
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }

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

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

  static public void set(BitSet bs, int idx) {
    {
      if (bs != null)
        bs.set(idx);
    }
  }

  static public File pathToJavaxJar() {
    IResourceLoader rl = vm_getResourceLoader();
    if (rl != null)
      return rl.pathToJavaXJar();
    return pathToJavaxJar_noResourceLoader();
  }

  static public File pathToJavaxJar_noResourceLoader() {
    try {
      int x = latestInstalledJavaX();
      File xfile = new File(userHome(), ".javax/x" + Math.max(x, 30) + ".jar");
      if (!xfile.isFile()) {
        print("Saving " + f2s(xfile));
        String url = x30JarServerURL();
        byte[] data = loadBinaryPage(url);
        if (data.length < 1000000)
          throw fail("Could not load " + url);
        saveBinaryFile(xfile.getPath(), data);
      }
      return xfile;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public Method hashMap_findKey_method;

  static public <A, B> A hashMap_findKey(HashMap<A, B> map, Object key) {
    try {
      if (hashMap_findKey_method == null)
        hashMap_findKey_method = findMethodNamed(HashMap.class, "getNode");
      Map.Entry<A, B> entry = (Map.Entry) hashMap_findKey_method.invoke(map, hashMap_internalHash(key), key);
      return entry == null ? null : entry.getKey();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public String find(String pattern, String text) {
    Matcher matcher = Pattern.compile(pattern).matcher(text);
    if (matcher.find())
      return matcher.group(1);
    return null;
  }

  static public <A> A find(Collection<A> c, Object... data) {
    for (A x : c) if (checkFields(x, data))
      return x;
    return null;
  }

  static public String a(String noun) {
    if (eq(noun, ""))
      return "?";
    return ("aeiou".indexOf(noun.charAt(0)) >= 0 ? "an " : "a ") + noun;
  }

  static public String a(String contents, Object... params) {
    return hfulltag("a", contents, params);
  }

  static public String b(Object contents, Object... params) {
    return fulltag("b", contents, params);
  }

  static public int hashCodeFor(Object a) {
    return a == null ? 0 : a.hashCode();
  }

  static public String joinNemptiesWithColon(String... strings) {
    return joinNempties(": ", strings);
  }

  static public String joinNemptiesWithColon(Collection<String> strings) {
    return joinNempties(": ", strings);
  }

  static public String commaCombine(Object... l) {
    return joinNemptiesWithComma(flattenCollectionsAndArrays(l));
  }

  static public boolean isTag(String token, String tag) {
    return token.regionMatches(true, 0, "<" + tag + " ", 0, tag.length() + 2) || token.regionMatches(true, 0, "<" + tag + ">", 0, tag.length() + 2);
  }

  static public 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 public int stdHash2(Object a) {
    if (a == null)
      return 0;
    return stdHash(a, toStringArray(allFields(a)));
  }

  static public <A, B> LinkedHashMap<A, B> cloneLinkedHashMap(Map<A, B> map) {
    return map == null ? new LinkedHashMap() : new LinkedHashMap(map);
  }

  static public boolean hasLock(Lock lock) {
    return ((ReentrantLock) lock).isHeldByCurrentThread();
  }

  static public long sysNow() {
    ping();
    return System.nanoTime() / 1000000;
  }

  static public void clear(Collection c) {
    if (c != null)
      c.clear();
  }

  static public void clear(Map map) {
    if (map != null)
      map.clear();
  }

  static public void change() {
    callOpt(getOptMC("mainConcepts"), "allChanged");
  }

  static public List<String> diff(Collection<String> a, Collection<String> b) {
    Set<String> set = asSet(b);
    List<String> l = new ArrayList();
    for (String s : a) if (!set.contains(s))
      l.add(s);
    return l;
  }

  static public java.util.Timer doLater(long delay, final Object r) {
    ping();
    final java.util.Timer timer = new java.util.Timer();
    timer.schedule(timerTask(r, timer), delay);
    return vmBus_timerStarted(timer);
  }

  static public java.util.Timer doLater(double delaySeconds, final Object r) {
    return doLater(toMS(delaySeconds), r);
  }

  static public Timestamp sysTimeToTimestamp(long now) {
    return now == 0 ? null : new Timestamp(now - clockToSysTimeDiff());
  }

  static public Timestamp tsNow() {
    return new Timestamp();
  }

  static volatile public int numberOfCores_value;

  static public int numberOfCores() {
    if (numberOfCores_value == 0)
      numberOfCores_value = Runtime.getRuntime().availableProcessors();
    return numberOfCores_value;
  }

  static public <A> A popFirst(List<A> l) {
    if (empty(l))
      return null;
    A a = first(l);
    l.remove(0);
    return a;
  }

  static public <A> A popFirst(Collection<A> l) {
    if (empty(l))
      return null;
    A a = first(l);
    l.remove(a);
    return a;
  }

  static public <A, B> Pair<A, B> popFirst(Map<A, B> map) {
    if (map == null)
      return null;
    var it = map.entrySet().iterator();
    if (!it.hasNext())
      return null;
    var p = mapEntryToPair(it.next());
    it.remove();
    return p;
  }

  static public <A> List<A> popFirst(int n, List<A> l) {
    List<A> part = cloneSubList(l, 0, n);
    removeSubList(l, 0, n);
    return part;
  }

  static public <A> AppendableChain<A> popFirst(AppendableChain<A> a) {
    return a == null ? null : a.popFirst();
  }

  static public <A> Chain<A> chainPlus(Chain<A> chain, A a) {
    return new Chain<A>(a, chain);
  }

  static public <A> Chain<A> chainPlus(Chain<A> chain, A... l) {
    for (A a : unnullForIteration(l)) chain = chainPlus(chain, a);
    return chain;
  }

  static public <A> ReverseChain<A> chainPlus(ReverseChain<A> chain, A a) {
    return new ReverseChain<A>(chain, a);
  }

  static public <A> ReverseChain<A> chainPlus(ReverseChain<A> chain, A... l) {
    for (A a : unnullForIteration(l)) chain = chainPlus(chain, a);
    return chain;
  }

  static public <A> AppendableChain<A> chainPlus(AppendableChain<A> chain, A a) {
    if (chain == null)
      return new AppendableChain<A>(a);
    chain.add(a);
    return chain;
  }

  static public <A> AppendableChain<A> chainPlus(AppendableChain<A> chain, A... l) {
    for (A a : unnullForIteration(l)) chain = chainPlus(chain, a);
    return chain;
  }

  static public void syncNotifyAll(Object o) {
    if (o != null)
      synchronized (o) {
        o.notifyAll();
      }
  }

  static public <A, B> MultiSetMap<A, B> treeMultiSetMap() {
    return new MultiSetMap(true);
  }

  static public <A, B> MultiSetMap<A, B> treeMultiSetMap(Comparator<A> comparator) {
    return new MultiSetMap(new TreeMap<A, Set<B>>(comparator));
  }

  static public <A, B> B firstValue(Map<A, B> map) {
    return first(values(map));
  }

  static public <A, B> B firstValue(MultiSetMap<A, B> map) {
    return map == null ? null : first(firstValue(map.data));
  }

  static public <A, B> B firstValue(MultiMap<A, B> map) {
    return map == null ? null : first(firstValue(map.data));
  }

  static public <A, B> A firstKey(Map<A, B> map) {
    return first(keys(map));
  }

  static public <A, B> A firstKey(IMultiMap<A, B> map) {
    return map == null ? null : first(map.keySet());
  }

  static public int boostHashCombine(int a, int b) {
    return a ^ (b + 0x9e3779b9 + (a << 6) + (a >>> 2));
  }

  static public String formatLocalDateWithSeconds(long time) {
    return localDateWithSeconds(time);
  }

  static public String formatLocalDateWithSeconds() {
    return localDateWithSeconds();
  }

  static public BigInteger plus(BigInteger a, BigInteger b) {
    return a.add(b);
  }

  static public BigInteger plus(BigInteger a, long b) {
    return a.add(bigint(b));
  }

  static public long plus(long a, long b) {
    return a + b;
  }

  static public int plus(int a, int b) {
    return a + b;
  }

  static public float plus(float a, float b) {
    return a + b;
  }

  static public double plus(double a, double b) {
    return a + b;
  }

  static public long toMS(double seconds) {
    return (long) (seconds * 1000);
  }

  static public long toMS(Duration d) {
    return d == null ? 0 : d.toMillis();
  }

  static public long clockTimeToSystemTime(long now) {
    return now == 0 ? 0 : now + clockToSysTimeDiff();
  }

  static public <A> List<A> minus(Collection<A> a, Object... b) {
    Set set = asSet(b);
    List l = new ArrayList();
    for (Object s : unnull(a)) if (!set.contains(s))
      l.add(s);
    return l;
  }

  static public BigInteger minus(BigInteger a, BigInteger b) {
    return a.subtract(b);
  }

  static public Complex minus(Complex c) {
    return c == null ? null : complex(-c.re(), -c.im());
  }

  static public int minus(int a, int b) {
    return a - b;
  }

  static public int minus(int a) {
    return -a;
  }

  static public double minus(double a, double b) {
    return a - b;
  }

  static public double minus(double a) {
    return -a;
  }

  static public long minus(long a, long b) {
    return a - b;
  }

  static public long minus(long a) {
    return -a;
  }

  static public Set emptySet() {
    return new HashSet();
  }

  static public <A, B> Map.Entry<A, B> firstEntry(Map<A, B> map) {
    return empty(map) ? null : first(map.entrySet());
  }

  static public java.util.Timer doLater_daemon(long delay, final Object r) {
    final java.util.Timer timer = new java.util.Timer(true);
    timer.schedule(timerTask(r, timer), delay);
    return timer;
  }

  static public java.util.Timer doLater_daemon(double delaySeconds, final Object r) {
    return doLater_daemon(toMS(delaySeconds), r);
  }

  static public void cancelTimer(javax.swing.Timer timer) {
    if (timer != null)
      timer.stop();
  }

  static public void cancelTimer(java.util.Timer timer) {
    if (timer != null)
      timer.cancel();
  }

  static public void cancelTimer(Object o) {
    if (o instanceof java.util.Timer)
      cancelTimer((java.util.Timer) o);
    else if (o instanceof javax.swing.Timer)
      cancelTimer((javax.swing.Timer) o);
    else if (o instanceof AutoCloseable) {
      try {
        ((AutoCloseable) o).close();
      } catch (Throwable __e) {
        pcallFail(__e);
      }
    }
  }

  static public int seconds() {
    return seconds(java.util.Calendar.getInstance());
  }

  static public int seconds(java.util.Calendar c) {
    return c.get(java.util.Calendar.SECOND);
  }

  static public String formatDouble(double d, int digits) {
    String format = digits <= 0 ? "0" : "0." + rep(digits, '#');
    return decimalFormatEnglish(format, d);
  }

  static public String formatDouble(double d) {
    return str(d);
  }

  static public <A> List<A> sortedInPlace(List<A> l, final Object comparator) {
    sort(l, makeComparator(comparator));
    return l;
  }

  static public <A> List<A> sortedInPlace(List<A> l) {
    sort(l);
    return l;
  }

  static public IMeta toIMeta(Object o) {
    return initIMeta(o);
  }

  static public Map makeObjectMetaMap() {
    return new CompactHashMap();
  }

  static public IAutoCloseableF0 tempMetaMutex(IMeta o) {
    return o == null ? null : o._tempMetaMutex();
  }

  static public <A, B> void syncMapPut2(Map<A, B> map, A key, B value) {
    if (map != null && key != null)
      synchronized (collectionMutex(map)) {
        if (value != null)
          map.put(key, value);
        else
          map.remove(key);
      }
  }

  static public <A, B> int lKeys(MultiMap<A, B> mm) {
    return mm == null ? 0 : mm.keysSize();
  }

  static public ChangeListener changeListener(final Object r) {
    return new ChangeListener() {

      public void stateChanged(ChangeEvent e) {
        pcallF(r);
      }
    };
  }

  static public ItemListener itemListener(final Object r) {
    return new ItemListener() {

      public void itemStateChanged(ItemEvent e) {
        pcallF(r);
      }
    };
  }

  static public void onUpdate(JComponent c, Runnable r) {
    onUpdate(c, (Object) r);
  }

  static public void onUpdate(JTextComponent c, IVF1<String> r) {
    if (c == null || r == null)
      return;
    c.getDocument().addDocumentListener(runnableToDocumentListener(() -> r.get(c.getText())));
  }

  static public void onUpdate(JComponent c, Object r) {
    if (c instanceof JTextComponent)
      ((JTextComponent) c).getDocument().addDocumentListener(runnableToDocumentListener(toRunnable(r)));
    else if (c instanceof ItemSelectable)
      ((ItemSelectable) c).addItemListener(new ItemListener() {

        public void itemStateChanged(ItemEvent e) {
          pcallF(r);
        }
      });
    else if (c instanceof JSpinner)
      onChange(((JSpinner) c), r);
    else
      print("Warning: onUpdate doesn't know " + getClassName(c));
  }

  static public void onUpdate(List<? extends JComponent> l, Object r) {
    for (JComponent c : l) onUpdate(c, r);
  }

  static public <A> A getSelectedItem_typed(JList<A> l) {
    return swing(() -> l.getSelectedValue());
  }

  static public <A> A getSelectedItem_typed(JComboBox<A> cb) {
    return swing(() -> (A) cb.getSelectedItem());
  }

  static public JTextField textFieldFromComboBox(JComboBox cb) {
    return (JTextField) cb.getEditor().getEditorComponent();
  }

  static public JComboBox onSelectedItem(final JComboBox cb, final VF1<String> f) {
    addActionListener(cb, new Runnable() {

      public void run() {
        try {
          pcallF(f, selectedItem(cb));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "pcallF(f, selectedItem(cb))";
      }
    });
    return cb;
  }

  static public JComboBox onSelectedItem(final JComboBox cb, IVF1<String> f) {
    addActionListener(cb, new Runnable() {

      public void run() {
        try {
          pcallF(f, selectedItem(cb));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "pcallF(f, selectedItem(cb))";
      }
    });
    return cb;
  }

  static public <A> IVF1<A> runnableToIVF1(Runnable r) {
    return r == null ? null : a -> r.run();
  }

  static public void smartSet(Field f, Object o, Object value) throws Exception {
    try {
      f.set(o, value);
    } catch (Exception e) {
      Class type = f.getType();
      if (type == int.class && value instanceof Long) {
        f.set(o, ((Long) value).intValue());
        return;
      }
      if (type == boolean.class && value instanceof String) {
        f.set(o, isTrueOrYes(((String) value)));
        return;
      }
      if (type == LinkedHashMap.class && value instanceof Map) {
        f.set(o, asLinkedHashMap((Map) value));
        return;
      }
      try {
        if (f.getType() == Concept.Ref.class) {
          f.set(o, ((Concept) o).new Ref((Concept) value));
          return;
        }
        if (o instanceof Concept.Ref) {
          f.set(o, ((Concept.Ref) o).get());
          return;
        }
      } catch (Throwable _e) {
      }
      throw e;
    }
  }

  static public int latestInstalledJavaX() {
    File[] files = new File(userHome(), ".javax").listFiles();
    int v = 0;
    if (files != null)
      for (File f : files) {
        Matcher m = regexpMatcher("x(\\d\\d\\d?)\\.jar", f.getName());
        if (m.matches())
          v = Math.max(v, Integer.parseInt(m.group(1)));
      }
    return v;
  }

  static public String x30JarServerURL() {
    return "http://botcompany.de:8081/x30.jar";
  }

  static public Method findMethodNamed(Object obj, String method) {
    if (obj == null)
      return null;
    if (obj instanceof Class)
      return findMethodNamed((Class) obj, method);
    return findMethodNamed(obj.getClass(), method);
  }

  static public Method findMethodNamed(Class c, String method) {
    while (c != null) {
      for (Method m : c.getDeclaredMethods()) if (m.getName().equals(method)) {
        makeAccessible(m);
        return m;
      }
      c = c.getSuperclass();
    }
    return null;
  }

  static public int hashMap_internalHash(Object key) {
    int h;
    return (key == null) ? 0 : (h = key.hashCode()) ^ (h >>> 16);
  }

  static public boolean checkFields(Object x, Object... data) {
    for (int i = 0; i < l(data); i += 2) if (neq(getOpt(x, (String) data[i]), data[i + 1]))
      return false;
    return true;
  }

  static public String hfulltag(String tag) {
    return hfulltag(tag, "");
  }

  static public String hfulltag(String tag, Object contents, Object... params) {
    return hopeningTag(tag, params) + str(contents) + "</" + tag + ">";
  }

  static public String fulltag(String tag) {
    return hfulltag(tag);
  }

  static public String fulltag(String tag, Object contents, Object... params) {
    return hfulltag(tag, contents, params);
  }

  static public String joinNempties(String sep, Object... strings) {
    return joinStrings(sep, strings);
  }

  static public String joinNempties(String sep, Iterable strings) {
    return joinStrings(sep, strings);
  }

  static public String joinNemptiesWithComma(Object... strings) {
    return joinNempties(", ", strings);
  }

  static public String joinNemptiesWithComma(Iterable strings) {
    return joinNempties(", ", strings);
  }

  static public List flattenCollectionsAndArrays(Iterable a) {
    List l = new ArrayList();
    for (Object x : a) if (x instanceof Collection)
      l.addAll(flattenCollectionsAndArrays((Collection) x));
    else if (x instanceof Object[])
      l.addAll(flattenCollectionsAndArrays(asList((Object[]) x)));
    else
      l.add(x);
    return l;
  }

  static public List flattenCollectionsAndArrays(Object... whatever) {
    return flattenCollectionsAndArrays(ll(whatever));
  }

  static public Map<Class, Set<String>> allFields_cache = weakHashMap();

  static public Set<String> allFields(Object o) {
    if (o == null)
      return emptySet();
    Class _c = _getClass(o);
    Set<String> fields = allFields_cache.get(_c);
    if (fields == null)
      allFields_cache.put(_c, fields = asTreeSet(keys(getOpt_getFieldMap(o))));
    return fields;
  }

  static public int stdHash(Object a, String... fields) {
    if (a == null)
      return 0;
    int hash = getClassName(a).hashCode();
    for (String field : fields) hash = boostHashCombine(hash, hashCode(getOpt(a, field)));
    return hash;
  }

  static public Object getOptMC(String field) {
    return getOpt(mc(), field);
  }

  static public Set asSet(Object[] array) {
    HashSet set = new HashSet();
    for (Object o : array) if (o != null)
      set.add(o);
    return set;
  }

  static public Set<String> asSet(String[] array) {
    TreeSet<String> set = new TreeSet();
    for (String o : array) if (o != null)
      set.add(o);
    return set;
  }

  static public <A> Set<A> asSet(Iterable<A> l) {
    if (l instanceof Set)
      return (Set) l;
    HashSet<A> set = new HashSet();
    for (A o : unnull(l)) if (o != null)
      set.add(o);
    return set;
  }

  static public <A> Set<A> asSet(MultiSet<A> ms) {
    return ms == null ? null : ms.asSet();
  }

  static public TimerTask timerTask(final Object r, final java.util.Timer timer) {
    return new TimerTask() {

      public void run() {
        if (!licensed())
          timer.cancel();
        else
          pcallF(r);
      }
    };
  }

  static public <A> A vmBus_timerStarted(A timer) {
    vmBus_send("timerStarted", timer, costCenter());
    return timer;
  }

  static public long clockToSysTimeDiff() {
    return sysNow() - now();
  }

  static public String localDateWithSeconds(long time) {
    SimpleDateFormat format = simpleDateFormat_local("yyyy/MM/dd HH:mm:ss");
    return format.format(time);
  }

  static public String localDateWithSeconds() {
    return localDateWithSeconds(now());
  }

  static public BigInteger bigint(String s) {
    return new BigInteger(s);
  }

  static public BigInteger bigint(long l) {
    return BigInteger.valueOf(l);
  }

  static public Complex complex(double re, double im) {
    return new Complex(re, im);
  }

  static public Complex complex(double re) {
    return new Complex(re, 0.0);
  }

  static public Complex complex(double[] reIm) {
    if (empty(reIm))
      return null;
    if (l(reIm) != 2)
      throw fail("Need 2 doubles to make complex number");
    return complex(reIm[0], reIm[1]);
  }

  static public String rep(int n, char c) {
    return repeat(c, n);
  }

  static public String rep(char c, int n) {
    return repeat(c, n);
  }

  static public <A> List<A> rep(A a, int n) {
    return repeat(a, n);
  }

  static public <A> List<A> rep(int n, A a) {
    return repeat(n, a);
  }

  static public String decimalFormatEnglish(String format, double d) {
    return decimalFormatEnglish(format).format(d);
  }

  static public java.text.DecimalFormat decimalFormatEnglish(String format) {
    return new java.text.DecimalFormat(format, new java.text.DecimalFormatSymbols(Locale.ENGLISH));
  }

  static public <T> void sort(T[] a, Comparator<? super T> c) {
    if (a != null)
      Arrays.sort(a, c);
  }

  static public <T> void sort(T[] a) {
    if (a != null)
      Arrays.sort(a);
  }

  static public void sort(int[] a) {
    if (a != null)
      Arrays.sort(a);
  }

  static public <T> void sort(List<T> a, Comparator<? super T> c) {
    if (a != null)
      Collections.sort(a, c);
  }

  static public void sort(List a) {
    if (a != null)
      Collections.sort(a);
  }

  static public Comparator makeComparator(final Object f) {
    if (f instanceof Comparator)
      return (Comparator) f;
    return new Comparator() {

      public int compare(Object a, Object b) {
        return (Integer) callF(f, a, b);
      }
    };
  }

  static public DocumentListener runnableToDocumentListener(Runnable r) {
    return new DocumentListener() {

      public void insertUpdate(DocumentEvent e) {
        pcallF(r);
      }

      public void removeUpdate(DocumentEvent e) {
        pcallF(r);
      }

      public void changedUpdate(DocumentEvent e) {
        pcallF(r);
      }
    };
  }

  static public String selectedItem(JList l) {
    return getSelectedItem(l);
  }

  static public String selectedItem(JComboBox cb) {
    return getSelectedItem(cb);
  }

  static public boolean isTrueOrYes(Object o) {
    return isTrueOpt(o) || o instanceof String && (eqicOneOf(((String) o), "1", "t", "true") || isYes(((String) o)));
  }

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

  static public String hopeningTag(String tag, Map params) {
    return hopeningTag(tag, mapToParams(params));
  }

  static public String hopeningTag(String tag, Object... params) {
    StringBuilder buf = new StringBuilder();
    buf.append("<" + tag);
    params = unrollParams(params);
    for (int i = 0; i < l(params); i += 2) {
      String name = (String) get(params, i);
      Object val = get(params, i + 1);
      if (nempty(name) && val != null) {
        if (eqOneOf(val, html_valueLessParam(), true))
          buf.append(" " + name);
        else {
          String s = str(val);
          if (!empty(s))
            buf.append(" " + name + "=" + htmlQuote(s));
        }
      }
    }
    buf.append(">");
    return str(buf);
  }

  static public String joinStrings(String sep, Object... strings) {
    return joinStrings(sep, Arrays.asList(strings));
  }

  static public String joinStrings(String sep, Iterable strings) {
    StringBuilder buf = new StringBuilder();
    for (Object o : unnull(strings)) {
      String s = strOrNull(o);
      if (nempty(s)) {
        if (nempty(buf))
          buf.append(sep);
        buf.append(s);
      }
    }
    return str(buf);
  }

  static public <A> TreeSet<A> asTreeSet(Collection<A> set) {
    return set == null ? null : set instanceof TreeSet ? (TreeSet) set : new TreeSet(set);
  }

  static public class getOpt_Map extends WeakHashMap {

    public getOpt_Map() {
      if (getOpt_special == null)
        getOpt_special = new HashMap();
      clear();
    }

    public void clear() {
      super.clear();
      put(Class.class, getOpt_special);
      put(String.class, getOpt_special);
    }
  }

  static final public Map<Class, HashMap<String, Field>> getOpt_cache = _registerDangerousWeakMap(synchroMap(new getOpt_Map()));

  static public HashMap getOpt_special;

  static public Map<String, Field> getOpt_getFieldMap(Object o) {
    Class c = _getClass(o);
    HashMap<String, Field> map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
    return map;
  }

  static public Object getOpt_cached(Object o, String field) {
    try {
      if (o == null)
        return null;
      Map<String, Field> map = getOpt_getFieldMap(o);
      if (map == getOpt_special) {
        if (o instanceof Class)
          return getOpt((Class) 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 syncMapGet2(((DynamicObject) o).fieldValues, field);
      return null;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  static public HashMap<String, Field> getOpt_makeCache(Class c) {
    HashMap<String, Field> map;
    if (isSubtypeOf(c, Map.class))
      map = getOpt_special;
    else {
      map = new HashMap();
      if (!reflection_classesNotToScan().contains(c.getName())) {
        Class _c = c;
        do {
          for (Field f : _c.getDeclaredFields()) {
            makeAccessible(f);
            String name = f.getName();
            if (!map.containsKey(name))
              map.put(name, f);
          }
          _c = _c.getSuperclass();
        } while (_c != null);
      }
    }
    if (getOpt_cache != null)
      getOpt_cache.put(c, map);
    return map;
  }

  static public int hashCode(Object a) {
    return a == null ? 0 : a.hashCode();
  }

  static public int hashCode(long l) {
    return Long.hashCode(l);
  }

  static public int hashCode(double d) {
    return Double.hashCode(d);
  }

  static public Object costCenter() {
    return mc();
  }

  static public SimpleDateFormat simpleDateFormat_local(String format) {
    SimpleDateFormat sdf = new SimpleDateFormat(format);
    sdf.setTimeZone(localTimeZone());
    return sdf;
  }

  static public boolean isTrueOpt(Object o) {
    if (o instanceof Boolean)
      return ((Boolean) o).booleanValue();
    return false;
  }

  static public boolean isTrueOpt(String field, Object o) {
    return isTrueOpt(getOpt(field, o));
  }

  static public boolean eqicOneOf(String s, String... l) {
    for (String x : l) if (eqic(s, x))
      return true;
    return false;
  }

  static public Object[] mapToParams(Map map) {
    return mapToObjectArray(map);
  }

  static public Object[] unrollParams(Object[] params) {
    if (l(params) == 1 && params[0] instanceof Map)
      return mapToParams((Map) params[0]);
    return params;
  }

  static public Object html_valueLessParam_cache;

  static public Object html_valueLessParam() {
    if (html_valueLessParam_cache == null)
      html_valueLessParam_cache = html_valueLessParam_load();
    return html_valueLessParam_cache;
  }

  static public Object html_valueLessParam_load() {
    return new Object();
  }

  static public String htmlQuote(String s) {
    return "\"" + htmlencode_forParams(s) + "\"";
  }

  static public List<Pair> _registerDangerousWeakMap_preList;

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

  static public <A> A _registerDangerousWeakMap(A map, Object init) {
    callF(init, map);
    if (init instanceof String) {
      final String f = (String) init;
      init = new VF1<Map>() {

        public void get(Map map) {
          try {
            callMC(f, map);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "callMC(f, map)";
        }
      };
    }
    if (javax() == null) {
      if (_registerDangerousWeakMap_preList == null)
        _registerDangerousWeakMap_preList = synchroList();
      _registerDangerousWeakMap_preList.add(pair(map, init));
      return map;
    }
    call(javax(), "_registerDangerousWeakMap", map, init);
    return map;
  }

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

  static public <A, B> B syncMapGet2(Map<A, B> map, A a) {
    if (map == null)
      return null;
    synchronized (collectionMutex(map)) {
      return map.get(a);
    }
  }

  static public <A, B> B syncMapGet2(A a, Map<A, B> map) {
    return syncMapGet2(map, a);
  }

  static public boolean isSubtypeOf(Class a, Class b) {
    return a != null && b != null && b.isAssignableFrom(a);
  }

  static public Set<String> reflection_classesNotToScan_value = litset("jdk.internal.loader.URLClassPath");

  static public Set<String> reflection_classesNotToScan() {
    return reflection_classesNotToScan_value;
  }

  static public TimeZone localTimeZone() {
    return getTimeZone(standardTimeZone());
  }

  static public Object[] mapToObjectArray(Map map) {
    List l = new ArrayList();
    for (Object o : keys(map)) {
      l.add(o);
      l.add(map.get(o));
    }
    return toObjectArray(l);
  }

  static public Object[] mapToObjectArray(Object f, Collection l) {
    int n = l(l);
    Object[] array = new Object[n];
    if (n != 0) {
      Iterator it = iterator(l);
      for (int i = 0; i < n; i++) array[i] = callF(f, it.next());
    }
    return array;
  }

  static public Object[] mapToObjectArray(Object f, Object[] l) {
    int n = l(l);
    Object[] array = new Object[n];
    for (int i = 0; i < n; i++) array[i] = callF(f, l[i]);
    return array;
  }

  static public <A> Object[] mapToObjectArray(Collection<A> l, IF1<A, Object> f) {
    return mapToObjectArray(f, l);
  }

  static public <A> Object[] mapToObjectArray(A[] l, IF1<A, Object> f) {
    return mapToObjectArray(f, l);
  }

  static public <A> Object[] mapToObjectArray(IF1<A, Object> f, A[] l) {
    int n = l(l);
    Object[] array = new Object[n];
    for (int i = 0; i < n; i++) array[i] = f.get(l[i]);
    return array;
  }

  static public <A> Object[] mapToObjectArray(IF1<A, Object> f, Collection<A> l) {
    int n = l(l);
    Object[] array = new Object[n];
    if (n != 0) {
      Iterator it = iterator(l);
      for (int i = 0; i < n; i++) array[i] = callF(f, it.next());
    }
    return array;
  }

  static public ThreadLocal<Boolean> htmlencode_forParams_useV2 = new ThreadLocal();

  static public String htmlencode_forParams(String s) {
    if (s == null)
      return "";
    if (isTrue(htmlencode_forParams_useV2.get()))
      return htmlencode_forParams_v2(s);
    StringBuilder out = new StringBuilder(Math.max(16, s.length()));
    for (int i = 0; i < s.length(); i++) {
      char c = s.charAt(i);
      if (c > 127 || c == '"' || c == '<' || c == '>') {
        out.append("&#");
        out.append((int) c);
        out.append(';');
      } else
        out.append(c);
    }
    return out.toString();
  }

  static public TimeZone getTimeZone(String name) {
    return TimeZone.getTimeZone(name);
  }

  static public String standardTimeZone_name = "Europe/Berlin";

  static public String standardTimeZone() {
    return standardTimeZone_name;
  }

  static public String htmlencode_forParams_v2(String s) {
    if (s == null)
      return "";
    StringBuilder out = new StringBuilder(Math.max(16, s.length()));
    for (int i = 0; i < s.length(); i++) {
      char c = s.charAt(i);
      if (c > 127 || c == '"' || c == '<' || c == '>' || c == '&') {
        out.append("&#");
        out.append((int) c);
        out.append(';');
      } else
        out.append(c);
    }
    return out.toString();
  }

  static public class Chain<A> implements Iterable<A> {

    public A element;

    public Chain<A> next;

    public int size;

    public Chain() {
    }

    public Chain(A element) {
      this.element = element;
      size = 1;
    }

    public Chain(A element, Chain<A> next) {
      this.next = next;
      this.element = element;
      size = next != null ? next.size + 1 : 1;
    }

    public String toString() {
      return str(toList());
    }

    public ArrayList<A> toList() {
      ArrayList<A> l = emptyList(size);
      Chain<A> c = this;
      while (c != null) {
        l.add(c.element);
        c = c.next;
      }
      return l;
    }

    public Iterator<A> iterator() {
      return toList().iterator();
    }
  }

  static public class CompactHashMap<K, V> extends CompactAbstractMap<K, V> {

    final static public int INITIAL_SIZE = 3;

    final static public double LOAD_FACTOR = 0.6;

    final static public Object nullObject = new Object();

    final static public Object deletedObject = new Object();

    public int elements;

    public int freecells;

    public Object[] table;

    public CompactHashMap() {
      this(INITIAL_SIZE);
    }

    public CompactHashMap(int size) {
      table = new Object[(size == 0 ? 1 : size) * 2];
      elements = 0;
      freecells = tableSize();
    }

    public CompactHashMap(Map<K, V> map) {
      this(0);
      if (map != null)
        putAll(map);
    }

    public synchronized int size() {
      return elements;
    }

    public synchronized boolean isEmpty() {
      return elements == 0;
    }

    public synchronized void clear() {
      elements = 0;
      for (int ix = 0; ix < tableSize(); ix++) {
        key(ix, null);
        value(ix, null);
      }
      freecells = tableSize();
    }

    public synchronized boolean containsKey(Object k) {
      return key(findKeyIndex(k)) != null;
    }

    public synchronized boolean containsValue(Object v) {
      if (v == null)
        v = (V) nullObject;
      for (int ix = 0; ix < tableSize(); ix++) if (value(ix) != null && value(ix).equals(v))
        return true;
      return false;
    }

    public synchronized Set<Entry<K, V>> entrySet() {
      return new EntrySet();
    }

    public synchronized V remove(Object k) {
      int index = findKeyIndex(k);
      if (key(index) != null) {
        V v = value(index);
        key(index, deletedObject);
        value(index, deletedObject);
        elements--;
        return v;
      } else
        return null;
    }

    public synchronized V put(K k, V v) {
      if (k == null)
        k = (K) nullObject;
      int hash = k.hashCode();
      int index = (hash & 0x7FFFFFFF) % tableSize();
      int offset = 1;
      int deletedix = -1;
      while (key(index) != null && !(key(index).hashCode() == hash && key(index).equals(k))) {
        if (key(index) == deletedObject)
          deletedix = index;
        index = ((index + offset) & 0x7FFFFFFF) % tableSize();
        offset = offset * 2 + 1;
        if (offset == -1)
          offset = 2;
      }
      if (key(index) == null) {
        if (deletedix != -1)
          index = deletedix;
        else
          freecells--;
        elements++;
        key(index, k);
        value(index, v);
        if (1 - (freecells / (double) tableSize()) > LOAD_FACTOR)
          rehash(tableSize() * 2 + 1);
        return null;
      } else {
        V oldv = value(index);
        value(index, v);
        return oldv;
      }
    }

    public void rehash(int newCapacity) {
      int oldCapacity = tableSize();
      Object[] newTable = new Object[newCapacity * 2];
      for (int ix = 0; ix < oldCapacity; ix++) {
        Object k = key(ix);
        if (k == null || k == deletedObject)
          continue;
        int hash = k.hashCode();
        int index = (hash & 0x7FFFFFFF) % newCapacity;
        int offset = 1;
        while (newTable[index * 2] != null) {
          index = ((index + offset) & 0x7FFFFFFF) % newCapacity;
          offset = offset * 2 + 1;
          if (offset == -1)
            offset = 2;
        }
        newTable[index * 2] = k;
        newTable[index * 2 + 1] = value(ix);
      }
      table = newTable;
      freecells = tableSize() - elements;
    }

    public synchronized V get(Object k) {
      return value(findKeyIndex(k));
    }

    public synchronized Collection<V> values() {
      return new ValueCollection();
    }

    public synchronized Set<K> keySet() {
      return new KeySet();
    }

    final public int findKeyIndex(Object k) {
      if (k == null)
        k = nullObject;
      int hash = k.hashCode();
      int index = (hash & 0x7FFFFFFF) % tableSize();
      int offset = 1;
      while (key(index) != null && !(key(index).hashCode() == hash && key(index).equals(k))) {
        index = ((index + offset) & 0x7FFFFFFF) % tableSize();
        offset = offset * 2 + 1;
        if (offset == -1)
          offset = 2;
      }
      return index;
    }

    public class KeySet extends AbstractSet<K> {

      public int size() {
        synchronized (CompactHashMap.this) {
          return elements;
        }
      }

      public boolean contains(Object k) {
        synchronized (CompactHashMap.this) {
          return containsKey(k);
        }
      }

      public Iterator<K> iterator() {
        synchronized (CompactHashMap.this) {
          return new KeyIterator();
        }
      }
    }

    public class KeyIterator<K> implements Iterator<K> {

      public int ix;

      public KeyIterator() {
        synchronized (CompactHashMap.this) {
          for (; ix < tableSize(); ix++) if (value(ix) != null && key(ix) != deletedObject)
            break;
        }
      }

      public boolean hasNext() {
        synchronized (CompactHashMap.this) {
          return ix < tableSize();
        }
      }

      public void remove() {
        throw new UnsupportedOperationException("Collection is read-only");
      }

      public K next() {
        synchronized (CompactHashMap.this) {
          if (ix >= tableSize())
            throw new NoSuchElementException();
          K key = (K) key(ix++);
          for (; ix < tableSize(); ix++) if (key(ix) != null && key(ix) != deletedObject)
            break;
          return key;
        }
      }
    }

    public class EntrySet extends AbstractSet<Map.Entry<K, V>> {

      public int size() {
        synchronized (CompactHashMap.this) {
          return elements;
        }
      }

      public boolean contains(Object o) {
        synchronized (CompactHashMap.this) {
          if (o instanceof Map.Entry) {
            Object key = ((Map.Entry) o).getKey();
            if (!containsKey((Map.Entry) o))
              return false;
            return eq(((Map.Entry) o).getValue(), get(key));
          }
          return false;
        }
      }

      public Iterator<Map.Entry<K, V>> iterator() {
        return new EntryIterator();
      }
    }

    public class EntryIterator implements Iterator<Map.Entry<K, V>> {

      public int ix;

      public EntryIterator() {
        synchronized (CompactHashMap.this) {
          for (; ix < tableSize(); ix++) if (value(ix) != null && key(ix) != deletedObject)
            break;
        }
      }

      public boolean hasNext() {
        synchronized (CompactHashMap.this) {
          return ix < tableSize();
        }
      }

      public void remove() {
        throw new UnsupportedOperationException("Collection is read-only");
      }

      public Map.Entry<K, V> next() {
        synchronized (CompactHashMap.this) {
          if (ix >= tableSize())
            throw new NoSuchElementException();
          K key = key(ix);
          V val = value(ix);
          ++ix;
          for (; ix < tableSize(); ix++) if (key(ix) != null && key(ix) != deletedObject)
            break;
          return simpleMapEntry(key, val);
        }
      }
    }

    public class ValueCollection<V> extends AbstractCollection<V> {

      public int size() {
        synchronized (CompactHashMap.this) {
          return elements;
        }
      }

      public Iterator<V> iterator() {
        return new ValueIterator();
      }

      public boolean contains(Object v) {
        return containsValue(v);
      }
    }

    public class ValueIterator<V> implements Iterator<V> {

      public int ix;

      public ValueIterator() {
        synchronized (CompactHashMap.this) {
          for (; ix < table.length / 2; ix++) if (value(ix) != null && value(ix) != deletedObject)
            break;
        }
      }

      public boolean hasNext() {
        synchronized (CompactHashMap.this) {
          return ix < tableSize();
        }
      }

      public void remove() {
        throw new UnsupportedOperationException("Collection is read-only");
      }

      public V next() {
        synchronized (CompactHashMap.this) {
          if (ix >= tableSize())
            throw new NoSuchElementException();
          V value = (V) value(ix++);
          for (; ix < tableSize(); ix++) if (value(ix) != null && value(ix) != deletedObject)
            break;
          return value;
        }
      }
    }

    public K key(int i) {
      return (K) table[i * 2];
    }

    public void key(int i, Object key) {
      table[i * 2] = key;
    }

    public V value(int i) {
      return (V) table[i * 2 + 1];
    }

    public void value(int i, Object value) {
      table[i * 2 + 1] = value;
    }

    public int tableSize() {
      return table.length / 2;
    }
  }

  static public class ReverseChain<A> implements Iterable<A> {

    public A element;

    public ReverseChain<A> prev;

    public int size;

    public ReverseChain() {
    }

    public ReverseChain(ReverseChain<A> prev, A element) {
      this.element = element;
      this.prev = prev;
      if (prev == null)
        size = 1;
      else {
        prev.check();
        size = prev.size + 1;
      }
    }

    public void check() {
      if (size < 1)
        throw fail("You called the ReverseChain default constructor. Don't do that");
    }

    public String toString() {
      return str(toList());
    }

    public ArrayList<A> toList() {
      check();
      ArrayList<A> l = emptyList(size);
      for (int i = 0; i < size; i++) l.add(null);
      int i = size;
      ReverseChain<A> c = this;
      while (c != null) {
        l.set(--i, c.element);
        c = c.prev;
      }
      return l;
    }

    public Iterator<A> iterator() {
      return toList().iterator();
    }
  }

  static public class UpdateTrigger implements Runnable, IFieldsToList {

    public Updateable target;

    public UpdateTrigger() {
    }

    public UpdateTrigger(Updateable target) {
      this.target = target;
    }

    public String toString() {
      return shortClassName_dropNumberPrefix(this) + "(" + target + ")";
    }

    public boolean equals(Object o) {
      if (!(o instanceof UpdateTrigger))
        return false;
      UpdateTrigger __1 = (UpdateTrigger) o;
      return eq(target, __1.target);
    }

    public int hashCode() {
      int h = -1756880753;
      h = boostHashCombine(h, _hashCode(target));
      return h;
    }

    public Object[] _fieldsToList() {
      return new Object[] { target };
    }

    public void run() {
      try {
        {
          if (target != null)
            target.update();
        }
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }
  }

  public interface Updateable {

    public void update();
  }

  static public class ChangeTrigger implements Runnable, IFieldsToList {

    public ChangeTriggerable target;

    public ChangeTrigger() {
    }

    public ChangeTrigger(ChangeTriggerable target) {
      this.target = target;
    }

    public String toString() {
      return shortClassName_dropNumberPrefix(this) + "(" + target + ")";
    }

    public boolean equals(Object o) {
      if (!(o instanceof ChangeTrigger))
        return false;
      ChangeTrigger __1 = (ChangeTrigger) o;
      return eq(target, __1.target);
    }

    public int hashCode() {
      int h = -1239972920;
      h = boostHashCombine(h, _hashCode(target));
      return h;
    }

    public Object[] _fieldsToList() {
      return new Object[] { target };
    }

    public void run() {
      try {
        {
          if (target != null)
            target.change();
        }
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }
  }

  public interface ChangeTriggerable {

    public void change();
  }

  static public class Complex implements IFieldsToList {

    static final public String _fieldOrder = "re im";

    public double re;

    public double im;

    public Complex() {
    }

    public Complex(double re, double im) {
      this.im = im;
      this.re = re;
    }

    public boolean equals(Object o) {
      if (!(o instanceof Complex))
        return false;
      Complex __1 = (Complex) o;
      return re == __1.re && im == __1.im;
    }

    public int hashCode() {
      int h = -1679819632;
      h = boostHashCombine(h, _hashCode(re));
      h = boostHashCombine(h, _hashCode(im));
      return h;
    }

    public Object[] _fieldsToList() {
      return new Object[] { re, im };
    }

    public double abs() {
      return sqrt(re * re + im * im);
    }

    public double re() {
      return re;
    }

    public double im() {
      return im;
    }

    final public double angle() {
      return phase();
    }

    public double phase() {
      return Math.atan2(im, re);
    }

    public double fracAngle() {
      return fracNonNeg(angle() / twoPi());
    }

    public String toString() {
      if (im != 0)
        return re == 0 ? im + "i" : re + plusPrefixUnlessMinus(str(im)) + "i";
      else
        return str(re);
    }
  }

  abstract static public class CompactAbstractMap<K, V> implements Map<K, V> {

    public int size() {
      return entrySet().size();
    }

    public boolean isEmpty() {
      return size() == 0;
    }

    public boolean containsValue(Object value) {
      Iterator<Entry<K, V>> i = entrySet().iterator();
      if (value == null) {
        while (i.hasNext()) {
          Entry<K, V> e = i.next();
          if (e.getValue() == null)
            return true;
        }
      } else {
        while (i.hasNext()) {
          Entry<K, V> e = i.next();
          if (value.equals(e.getValue()))
            return true;
        }
      }
      return false;
    }

    public boolean containsKey(Object key) {
      Iterator<Entry<K, V>> i = entrySet().iterator();
      if (key == null) {
        while (i.hasNext()) {
          Entry<K, V> e = i.next();
          if (e.getKey() == null)
            return true;
        }
      } else {
        while (i.hasNext()) {
          Entry<K, V> e = i.next();
          if (key.equals(e.getKey()))
            return true;
        }
      }
      return false;
    }

    public V get(Object key) {
      Iterator<Entry<K, V>> i = entrySet().iterator();
      if (key == null) {
        while (i.hasNext()) {
          Entry<K, V> e = i.next();
          if (e.getKey() == null)
            return e.getValue();
        }
      } else {
        while (i.hasNext()) {
          Entry<K, V> e = i.next();
          if (key.equals(e.getKey()))
            return e.getValue();
        }
      }
      return null;
    }

    public V put(K key, V value) {
      throw new UnsupportedOperationException();
    }

    public V remove(Object key) {
      Iterator<Entry<K, V>> i = entrySet().iterator();
      Entry<K, V> correctEntry = null;
      if (key == null) {
        while (correctEntry == null && i.hasNext()) {
          Entry<K, V> e = i.next();
          if (e.getKey() == null)
            correctEntry = e;
        }
      } else {
        while (correctEntry == null && i.hasNext()) {
          Entry<K, V> e = i.next();
          if (key.equals(e.getKey()))
            correctEntry = e;
        }
      }
      V oldValue = null;
      if (correctEntry != null) {
        oldValue = correctEntry.getValue();
        i.remove();
      }
      return oldValue;
    }

    public void putAll(Map<? extends K, ? extends V> m) {
      for (Entry<? extends K, ? extends V> e : m.entrySet()) put(e.getKey(), e.getValue());
    }

    public void clear() {
      entrySet().clear();
    }

    public Set<K> keySet() {
      return new AbstractSet<K>() {

        public Iterator<K> iterator() {
          return new Iterator<K>() {

            public Iterator<Entry<K, V>> i = entrySet().iterator();

            public boolean hasNext() {
              return i.hasNext();
            }

            public K next() {
              return i.next().getKey();
            }

            public void remove() {
              i.remove();
            }
          };
        }

        public int size() {
          return CompactAbstractMap.this.size();
        }

        public boolean isEmpty() {
          return CompactAbstractMap.this.isEmpty();
        }

        public void clear() {
          CompactAbstractMap.this.clear();
        }

        public boolean contains(Object k) {
          return CompactAbstractMap.this.containsKey(k);
        }
      };
    }

    public Collection<V> values() {
      return new AbstractCollection<V>() {

        public Iterator<V> iterator() {
          return new Iterator<V>() {

            public Iterator<Entry<K, V>> i = entrySet().iterator();

            public boolean hasNext() {
              return i.hasNext();
            }

            public V next() {
              return i.next().getValue();
            }

            public void remove() {
              i.remove();
            }
          };
        }

        public int size() {
          return CompactAbstractMap.this.size();
        }

        public boolean isEmpty() {
          return CompactAbstractMap.this.isEmpty();
        }

        public void clear() {
          CompactAbstractMap.this.clear();
        }

        public boolean contains(Object v) {
          return CompactAbstractMap.this.containsValue(v);
        }
      };
    }

    public abstract Set<Entry<K, V>> entrySet();

    public boolean equals(Object o) {
      if (o == this)
        return true;
      if (!(o instanceof Map))
        return false;
      Map<?, ?> m = (Map<?, ?>) o;
      if (m.size() != size())
        return false;
      try {
        for (Entry<K, V> e : entrySet()) {
          K key = e.getKey();
          V value = e.getValue();
          if (value == null) {
            if (!(m.get(key) == null && m.containsKey(key)))
              return false;
          } else {
            if (!value.equals(m.get(key)))
              return false;
          }
        }
      } catch (ClassCastException unused) {
        return false;
      } catch (NullPointerException unused) {
        return false;
      }
      return true;
    }

    public int hashCode() {
      int h = 0;
      for (Entry<K, V> entry : entrySet()) h += entry.hashCode();
      return h;
    }

    public String toString() {
      Iterator<Entry<K, V>> i = entrySet().iterator();
      if (!i.hasNext())
        return "{}";
      StringBuilder sb = new StringBuilder();
      sb.append('{');
      for (; ; ) {
        Entry<K, V> e = i.next();
        K key = e.getKey();
        V value = e.getValue();
        sb.append(key == this ? "(this Map)" : key);
        sb.append('=');
        sb.append(value == this ? "(this Map)" : value);
        if (!i.hasNext())
          return sb.append('}').toString();
        sb.append(',').append(' ');
      }
    }

    public Object clone() throws CloneNotSupportedException {
      CompactAbstractMap<?, ?> result = (CompactAbstractMap<?, ?>) super.clone();
      return result;
    }

    public static class SimpleEntry<K, V> implements Entry<K, V>, java.io.Serializable {

      @java.io.Serial
      static final public long serialVersionUID = -8499721149061103585L;

      @SuppressWarnings("serial")
      final public K key;

      @SuppressWarnings("serial")
      public V value;

      public SimpleEntry(K key, V value) {
        this.key = key;
        this.value = value;
      }

      public SimpleEntry(Entry<? extends K, ? extends V> entry) {
        this.key = entry.getKey();
        this.value = entry.getValue();
      }

      public K getKey() {
        return key;
      }

      public V getValue() {
        return value;
      }

      public V setValue(V value) {
        V oldValue = this.value;
        this.value = value;
        return oldValue;
      }

      public boolean equals(Object o) {
        if (!(o instanceof Map.Entry))
          return false;
        Entry<?, ?> e = (Entry<?, ?>) o;
        return eq(key, e.getKey()) && eq(value, e.getValue());
      }

      public int hashCode() {
        return (key == null ? 0 : key.hashCode()) ^ (value == null ? 0 : value.hashCode());
      }

      public String toString() {
        return key + "=" + value;
      }
    }

    public static class SimpleImmutableEntry<K, V> implements Entry<K, V>, java.io.Serializable {

      @java.io.Serial
      static final public long serialVersionUID = 7138329143949025153L;

      @SuppressWarnings("serial")
      final public K key;

      @SuppressWarnings("serial")
      final public V value;

      public SimpleImmutableEntry(K key, V value) {
        this.key = key;
        this.value = value;
      }

      public SimpleImmutableEntry(Entry<? extends K, ? extends V> entry) {
        this.key = entry.getKey();
        this.value = entry.getValue();
      }

      public K getKey() {
        return key;
      }

      public V getValue() {
        return value;
      }

      public V setValue(V value) {
        throw new UnsupportedOperationException();
      }

      public boolean equals(Object o) {
        if (!(o instanceof Map.Entry))
          return false;
        Entry<?, ?> e = (Entry<?, ?>) o;
        return eq(key, e.getKey()) && eq(value, e.getValue());
      }

      public int hashCode() {
        return (key == null ? 0 : key.hashCode()) ^ (value == null ? 0 : value.hashCode());
      }

      public String toString() {
        return key + "=" + value;
      }
    }
  }

  static public boolean scaffoldingEnabled(Object o) {
    return metaGet(o, "scaffolding") != null;
  }

  static public <A> Value<A> value(A a) {
    return new Value<A>(a);
  }

  static public <A, B> boolean containsKey(Map<A, B> map, A key) {
    return map != null && map.containsKey(key);
  }

  static public <A, B> Map.Entry<A, B> simpleMapEntry(A key, B value) {
    return new Map.Entry<A, B>() {

      public A getKey() {
        return key;
      }

      public B getValue() {
        return value;
      }

      public B setValue(B newValue) {
        throw unimplemented();
      }
    };
  }

  static public double sqrt(double x) {
    return Math.sqrt(x);
  }

  static public double fracNonNeg(double d) {
    return frac_nonNeg(d);
  }

  static public double twoPi() {
    return Math.PI * 2;
  }

  static public String plusPrefixUnlessMinus(String s) {
    return startsWith(s, "-") ? s : "+" + s;
  }

  static public RuntimeException unimplemented() {
    throw fail("TODO");
  }

  static public RuntimeException unimplemented(String msg) {
    throw fail("TODO: " + msg);
  }

  static public RuntimeException unimplemented(Object obj) {
    throw fail("TODO: implement method in " + className(obj));
  }

  static public double frac_nonNeg(double d) {
    return mod(d, 1);
  }

  static public int mod(int n, int m) {
    return (n % m + m) % m;
  }

  static public long mod(long n, long m) {
    return (n % m + m) % m;
  }

  static public BigInteger mod(BigInteger n, int m) {
    return n.mod(bigint(m));
  }

  static public double mod(double n, double m) {
    return (n % m + m) % m;
  }

  static public class Value<A> implements IF0<A>, IFieldsToList {

    public A value;

    public Value() {
    }

    public Value(A value) {
      this.value = value;
    }

    public boolean equals(Object o) {
      if (!(o instanceof Value))
        return false;
      Value __1 = (Value) o;
      return eq(value, __1.value);
    }

    public int hashCode() {
      int h = 82420049;
      h = boostHashCombine(h, _hashCode(value));
      return h;
    }

    public Object[] _fieldsToList() {
      return new Object[] { value };
    }

    public A get() {
      return value;
    }

    public String toString() {
      return str(get());
    }
  }
}