import java.util.*;
import java.util.zip.*;
import java.util.List;
import java.util.regex.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.*;
import java.util.concurrent.locks.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.table.*;
import java.io.*;
import java.net.*;
import java.lang.reflect.*;
import java.lang.ref.*;
import java.lang.management.*;
import java.security.*;
import java.security.spec.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.imageio.*;
import java.math.*;
import x30_pkg.x30_util;
import static x30_pkg.x30_util.VF1;
import static x30_pkg.x30_util.l;
import static x30_pkg.x30_util.empty;
import static x30_pkg.x30_util.nempty;
import static x30_pkg.x30_util.fail;
import static x30_pkg.x30_util.indexOf;
import static x30_pkg.x30_util.getOpt;
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.get_raw;
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 static x30_pkg.x30_util.asList;
import loadableUtils.utils;
import static loadableUtils.utils.print_byThread;
import static loadableUtils.utils._threadInfo;
import static loadableUtils.utils._threadInheritInfo;
import static loadableUtils.utils._threadInfo_addMakerAndRetriever;
import static loadableUtils.utils.dm_currentModule;
import static loadableUtils.utils.dm_current_mandatory;
import static loadableUtils.utils.match;
import static loadableUtils.utils.getOpt_raw;
import static loadableUtils.utils.setOpt;
import static loadableUtils.utils.setOpt_raw;
import static loadableUtils.utils.getField;
import static loadableUtils.utils.fieldType;
import static loadableUtils.utils.format3;
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.struct;
import static loadableUtils.utils.structure;
import static loadableUtils.utils.loadPage;
import static loadableUtils.utils.loadPageSilentlyWithTimeout;
import static loadableUtils.utils.loadPageSilently;
import static loadableUtils.utils.loadSnippet;
import static loadableUtils.utils.loadSnippetQuietly;
import static loadableUtils.utils.sendToLocalBot;
import static loadableUtils.utils.componentPopupMenu;
import static loadableUtils.utils.componentPopupMenu_top;
import static loadableUtils.utils.listPopupMenu;
import static loadableUtils.utils.tablePopupMenu;
import static loadableUtils.utils.sexyTableWithoutDrag;
import static loadableUtils.utils.dm_current_generic;
import static loadableUtils.utils.dm_current_mandatory_generic;
import static loadableUtils.utils.cset;
import static loadableUtils.utils.DynamicObject_loading;
import static loadableUtils.utils.concepts_unlisted;
import static loadableUtils.utils.makePopupMenuConditional;
import static loadableUtils.utils.makeConceptsTable_idWidth;
import static loadableUtils.utils.showConceptsTable_afterUpdate;
import static loadableUtils.utils.dynamicObjectIsLoading;
import loadableUtils.utils.F0;
import loadableUtils.utils.F1;
import loadableUtils.utils.Matches;
import loadableUtils.utils.BetterLabel;
import loadableUtils.utils.SingleComponentPanel;
import loadableUtils.utils.Snippet;
import loadableUtils.utils.Q;
import loadableUtils.utils.ImageSurface;
import loadableUtils.utils.structure_Data;
import loadableUtils.utils.RGBImage;
import loadableUtils.utils.BWImage;
import loadableUtils.utils.MakesBufferedImage;
import loadableUtils.utils.DynamicObject;
import loadableUtils.utils.Concept;
import loadableUtils.utils.Concepts;
import loadableUtils.utils.IConceptIndex;
import loadableUtils.utils.IFieldIndex;
import loadableUtils.utils.Derefable;
import loadableUtils.utils.ImageSurfaceSelector;
import loadableUtils.utils.SimpleCRUD;
import loadableUtils.utils.PersistableThrowable;
import loadableUtils.utils.DynModule;
import loadableUtils.utils.DynPrintLog;
import loadableUtils.utils.DynObjectTable;
import loadableUtils.utils.DynImageSurface;
import loadableUtils.utils.DynCalculatedList;
import java.text.NumberFormat;
import javax.net.ssl.*;
import java.security.SecureRandom;
import java.security.cert.X509Certificate;
import java.text.SimpleDateFormat;
import java.nio.file.Files;
import javax.swing.undo.UndoManager;
import java.nio.file.Path;
import java.awt.datatransfer.StringSelection;

class main {

  public static boolean _moduleClass_TestBot;

  public static class TestBot extends DynObjectTable<ExecutedRule> {

    public InputChooser inputChooser = new InputChooser(this);

    public String source, facts, rules;

    public String inputAs = "Input:";

    public boolean allowUnsafeEvals;

    public void start() {
      super.start();
      dm_useLocalMechListCopies();
      transpileRaw_useDiskCache = true;
      inputChooser.delay = 1000;
      itemToMap = itemToMap_ExecutedRule_v2();
    }

    public JComponent visualize() {
      return withMargin(northCenterAndSouth(vstackWithSpacing(westCenterAndEast(dm_fieldComboBox("inputAs", ll("Input:", "Fact:")), wrap(inputChooser), withLeftMargin(jbutton("Compute", runnableThread(new Runnable() {

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

        public String toString() {
          return "compute();";
        }
      }))))), jvsplit(super.visualize(), jhsplit(withTitle("Facts", jLiveValueWordWrapTypeWriterTextArea_bothWays(dm_fieldLiveValue("facts"))), withTitle("Rules", jLiveValueWordWrapTypeWriterTextArea_bothWays(dm_fieldLiveValue("rules"))), 0.5, 100), 0.2, 100), dm_fieldCheckBox("allowUnsafeEvals")));
    }

    public void compute() {
      update(inputChooser.input());
    }

    public void update() {
      if (inputChooser.update())
        update(inputChooser.input());
    }

    public void update(String input) {
      AutoCloseable __6 = enter();
      try {
        boolean inputAsFact = cic(inputAs, "fact");
        NLLogicChecker_v2.staticVerbose = true;
        List<IfThen> theRules = ai_parseRulesWithMacros(rules);
        theRules = map("nlLogic_rawSentencesToFacts", theRules);
        List<String> theFacts = tlft(facts);
        NLLogicChecker_v2.staticVerbose = true;
        AutoCloseable __7 = tempSetTL(nlLogic_processInputOrFact_allowUnsafeEvals, allowUnsafeEvals);
        try {
          setData(nlLogic_processInputOrFact(input, inputAsFact, pair(theRules, theFacts)));
        } finally {
          _close(__7);
        }
      } finally {
        _close(__6);
      }
    }
  }

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

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

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

  public static <A> A call(Object o, String method, Object... args) {
    return x30_util.call(o, method, args);
  }

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

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

      public Class get(String name) {
        try {
          Class c = findClass_fullName(name);
          if (c != null)
            return c;
          if (startsWith(name, "main$"))
            return loadableUtils.utils.findClass_fullName("loadableUtils.utils" + substring(name, 4));
          return null;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "Class c = findClass_fullName(name);\r\n    if (c != null) ret c;\r\n    if (start...";
      }
    });
  }

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

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

  public static volatile StringBuffer local_log = new StringBuffer();

  public static volatile Appendable print_log = local_log;

  public static volatile int print_log_max = 1024 * 1024;

  public static volatile int local_log_max = 100 * 1024;

  public static boolean print_silent;

  public static Object print_byThread_lock = new Object();

  public static volatile ThreadLocal<Object> print_byThread;

  public static volatile Object print_allThreads;

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

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

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

  public static void print_noNewLine(String s) {
    Object f = print_byThread == null ? null : print_byThread.get();
    if (f == null)
      f = print_allThreads;
    if (f != null)
      if (isFalse(f instanceof F1 ? ((F1) f).get(s) : callF(f, s)))
        return;
    print_raw(s);
  }

  public static void print_raw(String 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);
    System.out.print(s);
  }

  public static Exp nlLogic_rawSentencesToFacts(Exp e) {
    return nlLogic_transformShallow(e, nlLogic_rawSentencesToFacts_f());
  }

  public static IfThen nlLogic_rawSentencesToFacts(IfThen rule) {
    return nlLogic_transformShallow(rule, nlLogic_rawSentencesToFacts_f());
  }

  public static F1<Exp, Exp> nlLogic_rawSentencesToFacts_f() {
    return new F1<Exp, Exp>() {

      public Exp get(Exp e) {
        try {
          if (e instanceof Sentence2)
            return new Func("fact", e);
          return e;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "if (e instanceof Sentence2)\r\n      ret Func('fact, e);\r\n    ret e;";
      }
    };
  }

  public static void dm_useLocalMechListCopies() {
    dm_useLocallyCopiedMechLists();
  }

  public static F1<ExecutedRule, Map> itemToMap_ExecutedRule_v2() {
    return new F1<ExecutedRule, Map>() {

      public Map get(ExecutedRule r) {
        try {
          return litorderedmap("Output", nullIfEmpty(join("|", r.output)), "Produced Facts", nullIfEmpty(join("|", r.facts)), "New Input", nullIfEmpty(join("|", r.newInput)), "Rule", nlLogic_ruleWithParamsForUser(r.rule));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "litorderedmap(\r\n      \"Output\" := nullIfEmpty(join(\"|\", r.output)),\r\n      \"P...";
      }
    };
  }

  public static int withMargin_defaultWidth = 6;

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

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

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

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

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

  public static JPanel northCenterAndSouth(Component n, Component c, Component s) {
    JPanel panel = new JPanel(new BorderLayout());
    panel.add(BorderLayout.NORTH, wrap(n));
    panel.add(BorderLayout.CENTER, wrap(c));
    panel.add(BorderLayout.SOUTH, wrap(s));
    return panel;
  }

  public static int vstackWithSpacing_default = 10;

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

  public static JPanel vstackWithSpacing(final List parts, final int spacing) {
    return swing(new F0<JPanel>() {

      public JPanel get() {
        try {
          JPanel panel = new JPanel(new GridBagLayout());
          GridBagConstraints gbc = new GridBagConstraints();
          gbc.weightx = 1;
          gbc.fill = GridBagConstraints.HORIZONTAL;
          gbc.gridwidth = GridBagConstraints.REMAINDER;
          gbc.insets = new Insets(spacing / 2, 0, spacing / 2, 0);
          smartAddWithLayout(panel, gbc, toObjectArray(nonNulls(parts)));
          gbc.weighty = 1;
          gbc.insets = new Insets(0, 0, 0, 0);
          panel.add(jrigid(), gbc);
          return panel;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "JPanel panel = new JPanel(new GridBagLayout);\r\n    new GridBagConstraints gbc...";
      }
    });
  }

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

  public static JPanel westCenterAndEast(Component w, Component c, Component e) {
    JPanel panel = new JPanel(new BorderLayout());
    panel.add(BorderLayout.WEST, wrap(w));
    panel.add(BorderLayout.CENTER, wrap(c));
    panel.add(BorderLayout.EAST, wrap(e));
    return panel;
  }

  public static JComboBox dm_fieldComboBox(String field, Collection<String> values) {
    return jLiveValueComboBox(values, dm_fieldLiveValue(field));
  }

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

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

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

  public static int withLeftMargin_defaultWidth = 6;

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

  public static JPanel withLeftMargin(final int margin, final 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...";
      }
    });
  }

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

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

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

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

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

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

  public static RuntimeException rethrow(Throwable t) {
    if (t instanceof Error)
      _handleError((Error) t);
    throw t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
  }

  public static JSplitPane jvsplit(Component n, Component s) {
    return jvsplit(n, s, 0.5);
  }

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

  public static JSplitPane jvsplit(Component n, Component s, double splitPoint) {
    return setSplitPaneOnFirstShowing(swingNu(JSplitPane.class, JSplitPane.VERTICAL_SPLIT, wrap(n), wrap(s)), splitPoint);
  }

  public static JSplitPane jhsplit(Component l, Component r) {
    return jhsplit(l, r, 0.5);
  }

  public static JSplitPane jhsplit(Component l, Component r, double splitPoint, int delay) {
    return jhsplit(l, r, splitPoint);
  }

  public static JSplitPane jhsplit(Component l, Component r, double splitPoint) {
    return setSplitPaneOnFirstShowing(swingNu(JSplitPane.class, JSplitPane.HORIZONTAL_SPLIT, wrap(l), wrap(r)), splitPoint);
  }

  public static JComponent withTitle(String title, Component c) {
    return withTitle(withTitle_titlePanel(title), c);
  }

  public static JComponent withTitle_titlePanel(String title) {
    return jlabel(title);
  }

  public static JPanel withTitle(final JComponent titleComponent, final Component c) {
    return swing(new F0<JPanel>() {

      public JPanel get() {
        try {
          titleComponent.setBorder(BorderFactory.createMatteBorder(0, 0, 1, 0, UIManager.getColor("Button.borderColor")));
          JPanel panel = new JPanel(new BorderLayout());
          panel.setBackground(Color.WHITE);
          panel.add(BorderLayout.NORTH, titleComponent);
          panel.add(BorderLayout.CENTER, wrap(c));
          return panel;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "titleComponent.setBorder(BorderFactory.createMatteBorder(0, 0, 1, 0, UIManage...";
      }
    });
  }

  public static JTextArea jLiveValueWordWrapTypeWriterTextArea_bothWays(final SimpleLiveValue<String> lv) {
    return bindTextComponentToLiveValue_bothWays(wordWrapTypeWriterTextArea(), lv);
  }

  public static SimpleLiveValue dm_fieldLiveValue(String fieldName) {
    return dm_fieldLiveValue(dm_current_mandatory(), fieldName);
  }

  public static SimpleLiveValue dm_fieldLiveValue(final DynModule module, final String fieldName) {
    Lock __50 = module.lock;
    lock(__50);
    try {
      Class type = getFieldType(module, fieldName);
      final SimpleLiveValue value = new SimpleLiveValue(type, get(module, fieldName));
      module.onChange(new Runnable() {

        public void run() {
          try {
            Object o = get(module, fieldName);
            value.set(o);
            ;
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "ifdef dm_fieldLiveValue_debug\r\n      print(\"dm_fieldLiveValue: setting \" + fi...";
        }
      });
      value.onChange(new Runnable() {

        public void run() {
          try {
            module.setField(fieldName, value.get());
            ;
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "ifdef dm_fieldLiveValue_debug\r\n      print(\"dm_fieldLiveValue: setting 2 \" + ...";
        }
      });
      return value;
    } finally {
      unlock(__50);
    }
  }

  public static JCheckBox dm_fieldCheckBox(String field) {
    return dm_fieldCheckBox(humanizeFormLabel(field), field);
  }

  public static JCheckBox dm_fieldCheckBox(String text, String field) {
    if (isIdentifier(text) && !isIdentifier(field)) {
      String temp = field;
      field = text;
      text = temp;
    }
    return jLiveValueCheckBox(text, dm_fieldLiveValue(field));
  }

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

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

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

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

  public static List<IfThen> ai_parseRulesWithMacros(String s) {
    return map("nlLogic_expandMacros", ai_parseRules(s));
  }

  public static List map(Iterable l, Object f) {
    return map(f, l);
  }

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

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

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

  public static List map(Object f, Object[] l) {
    return map(f, asList(l));
  }

  public static List map(Object[] l, Object f) {
    return map(f, l);
  }

  public static List map(Object f, Map map) {
    return map(map, f);
  }

  public static List map(Map map, Object f) {
    List x = new ArrayList();
    if (map != null)
      for (Object _e : map.entrySet()) {
        Map.Entry e = (Map.Entry) _e;
        x.add(callF(f, e.getKey(), e.getValue()));
      }
    return x;
  }

  public static List<String> tlft(String s) {
    return toLinesFullTrim(s);
  }

  public static List<String> tlft(File f) {
    return toLinesFullTrim(f);
  }

  public static <A> AutoCloseable tempSetTL(ThreadLocal<A> tl, A a) {
    return tempSetThreadLocal(tl, a);
  }

  public static List<ExecutedRule> nlLogic_processInputOrFact(String input, boolean inputAsFact, String rulesMechListName) {
    return nlLogic_processInputOrFact(input, inputAsFact, eq(rulesMechListName, "<default>") ? ai_activeRulesAndFacts() : pair(ai_rulesFromMechList(trim(rulesMechListName)), (List<String>) emptyList()));
  }

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

  public static List<ExecutedRule> nlLogic_processInputOrFact(String input, boolean inputAsFact, Pair<List<IfThen>, List<String>> rulesAndFacts) {
    NLLogicChecker_v3 c = new NLLogicChecker_v3();
    if (!inputAsFact)
      c.input = input;
    c.facts = reversed(rulesAndFacts.b);
    if (inputAsFact)
      c.facts = concatLists(ll(input), c.facts);
    c.rules = reversed(rulesAndFacts.a);
    if (!inputAsFact)
      c.rules = filter(c.rules, new F1<IfThen, Boolean>() {

        public Boolean get(IfThen r) {
          try {
            return ai_ruleAccessesInput(r);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "ai_ruleAccessesInput(r)";
        }
      });
    if (!isTrue(nlLogic_processInputOrFact_allowUnsafeEvals.get()))
      c.rules = nlLogic_safeLHSEvalsOnly(c.rules);
    print("Have " + n2(rulesAndFacts.a, "rule"));
    c.useIterate = true;
    List<RuleWithParams> battleSpace = new ArrayList();
    nlLogic_fillBattleSpace(c, battleSpace, false);
    return map("nlLogic_executedRuleFromRuleWithParams", battleSpace);
  }

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

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

  public static 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);
      }
  }

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

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

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

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

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

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

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

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

  public static 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;
  }

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

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

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

  public static Object _defaultClassFinder_value;

  public static Object _defaultClassFinder() {
    return _defaultClassFinder_value;
  }

  public static String programID;

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

  public static String getProgramID(Class c) {
    String id = (String) getOpt(c, "programID");
    if (nempty(id))
      return formatSnippetID(id);
    return "?";
  }

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

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

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

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

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

  public static void print_append(Appendable _buf, String s, int max) {
    try {
      synchronized (_buf) {
        _buf.append(s);
        if (!(_buf instanceof StringBuilder))
          return;
        StringBuilder buf = (StringBuilder) (_buf);
        max /= 2;
        if (buf.length() > max)
          try {
            int newLength = max / 2;
            int ofs = buf.length() - newLength;
            String newString = buf.substring(ofs);
            buf.setLength(0);
            buf.append("[...] ").append(newString);
          } catch (Exception e) {
            buf.setLength(0);
          }
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static Exp nlLogic_transformShallow(Exp e, F1<Exp, Exp> f) {
    if (e == null)
      return null;
    if (e instanceof And)
      return new And(nlLogic_transformShallow(((And) e).a, f), nlLogic_transformShallow(((And) e).b, f));
    if (e instanceof ExpNot)
      return new ExpNot(nlLogic_transformShallow(((ExpNot) e).a, f));
    return callF(f, e);
  }

  public static IfThen nlLogic_transformShallow(IfThen rule, F1<Exp, Exp> f) {
    if (rule == null)
      return null;
    rule = (IfThen) shallowClone(rule);
    rule.in = nlLogic_transformShallow(rule.in, f);
    rule.out = nlLogic_transformShallow(rule.out, f);
    return rule;
  }

  public static void dm_useLocallyCopiedMechLists() {
    dm_requireModule("#1016073/MechLists");
    useLocalMechListCopies(true);
    setOptMC("serverMechList_raw_fresh_verbose", true);
    setOptMC("mechList_goToCreator_dont", true);
  }

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

  public static String nullIfEmpty(String s) {
    return isEmpty(s) ? null : s;
  }

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

  public static <A> List<A> nullIfEmpty(List<A> l) {
    return isEmpty(l) ? null : l;
  }

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

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

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

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

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

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

  public static String nlLogic_ruleWithParamsForUser(RuleWithParams r) {
    return r == null ? null : r.rule.globalID + (empty(r.matches) ? "" : " with " + join(" & ", map(r.matches, new F2<String, String, String>() {

      public String get(String a, String b) {
        try {
          return a + "=" + b;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "a + \"=\" + b";
      }
    })));
  }

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

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

  public static JPanel smartAddWithLayout(JPanel panel, Object layout, List parts) {
    for (Object o : parts) panel.add(wrapForSmartAdd(o), layout);
    return panel;
  }

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

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

  public static <A> List<A> nonNulls(List<A> l) {
    return withoutNulls(l);
  }

  public static <A, B> Map<A, B> nonNulls(Map<A, B> map) {
    return withoutNulls(map);
  }

  public static Component jrigid() {
    return javax.swing.Box.createRigidArea(new Dimension(0, 0));
  }

  public static JComboBox jLiveValueComboBox(Collection<String> values, final SimpleLiveValue<String> lv) {
    final JComboBox cb = jComboBox(values);
    bindComboBoxToLiveValue(cb, lv);
    return cb;
  }

  public static <A extends Component> A _recordNewSwingComponent(A c) {
    if (c != null)
      callF((Object) vm_generalMap_get("newSwingComponentRegistry"), c);
    return c;
  }

  public static JScrollPane jscroll(final Component c) {
    return swing(new F0<JScrollPane>() {

      public JScrollPane get() {
        try {
          return new JScrollPane(c);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "ret new JScrollPane(c);";
      }
    });
  }

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

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

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

  public static String str(char[] c) {
    return new String(c);
  }

  public static boolean newButton_autoToolTip = true;

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

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

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

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

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

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

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

  public static void _handleError(Error e) {
    call(javax(), "_handleError", e);
  }

  public static JSplitPane setSplitPaneOnFirstShowing(final Component c, final double value) {
    final JSplitPane sp = first(childrenOfType(c, JSplitPane.class));
    if (sp != null)
      onFirstResize(sp, new Runnable() {

        public void run() {
          try {
            sp.setDividerLocation(value);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "sp.setDividerLocation(value);";
        }
      });
    return sp;
  }

  public static <A extends JTextComponent> A bindTextComponentToLiveValue_bothWays(final A tc, final SimpleLiveValue<String> lv) {
    bindLiveValueListenerToComponent(tc, lv, new Runnable() {

      public void run() {
        try {
          setTextKeepCaret(tc, lv.get());
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "setTextKeepCaret(tc, lv.get())";
      }
    });
    onChange(tc, new Runnable() {

      public void run() {
        try {
          lv.set(getText(tc));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "lv.set(getText(tc))";
      }
    });
    return tc;
  }

  public static JTextArea wordWrapTypeWriterTextArea() {
    return wrappedTextArea(newTypeWriterTextArea());
  }

  public static JTextArea wordWrapTypeWriterTextArea(String text) {
    return wrappedTextArea(newTypeWriterTextArea(text));
  }

  public static void lock(Lock lock) {
    try {
      ping();
      if (lock == null)
        return;
      try {
        lock.lockInterruptibly();
      } catch (InterruptedException e) {
        print("Locking interrupted! I probably deadlocked, oops.");
        printStackTrace(e);
        rethrow(e);
      }
      ping();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

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

  public static Class getFieldType(Object o, String field) {
    return fieldType(o, field);
  }

  public static void unlock(Lock lock, String msg) {
    if (lock == null)
      return;
    print("Unlocking: " + msg);
    lock.unlock();
  }

  public static void unlock(Lock lock) {
    if (lock == null)
      return;
    lock.unlock();
  }

  public static Map<String, String> humanizeFormLabel_replacements = litmap("id", "ID", "md5", "MD5");

  public static String humanizeFormLabel(String s) {
    if (containsSpace(s))
      return s;
    return firstToUpper(joinWithSpace(replaceElementsUsingMap(splitCamelCase(s), humanizeFormLabel_replacements)).replace("I D", "ID"));
  }

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

  public static JCheckBox jLiveValueCheckBox(String text, final SimpleLiveValue<Boolean> lv) {
    final JCheckBox cb = jCheckBox(text);
    bindCheckBoxToLiveValue(cb, lv);
    return cb;
  }

  public static boolean containsIgnoreCase(Collection<String> l, String s) {
    if (l != null)
      for (String x : l) if (eqic(x, s))
        return true;
    return false;
  }

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

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

  public static boolean containsIgnoreCase(String a, String b) {
    return indexOfIgnoreCase(a, b) >= 0;
  }

  public static boolean contains(Collection c, Object o) {
    return c != null && c.contains(o);
  }

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

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

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

  public static boolean contains(BitSet bs, int i) {
    return bs != null && bs.get(i);
  }

  public static Map<String, String> nlLogic_expandMacros_funcShortNames = litmap("o", "output", "i", "input");

  public static void nlLogic_expandMacros(List<IfThen> rules) {
    for (IfThen rule : unnull(rules)) {
      try {
        nlLogic_expandMacros(rule);
      } catch (Throwable __e) {
        _handleException(__e);
      }
    }
  }

  public static IfThen nlLogic_expandMacros(IfThen r) {
    if (r == null)
      return r;
    int varCount = 0;
    String rendered;
    do {
      ping();
      rendered = str(r);
      nlLogic_visit(r, new VF1<Object>() {

        public void get(Object o) {
          try {
            if (o instanceof Func) {
              String name = nlLogic_expandMacros_funcShortNames.get(((Func) o).name);
              if (name != null)
                ((Func) o).name = name;
            }
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "if (o cast Func) {\r\n        S name = nlLogic_expandMacros_funcShortNames.get(...";
        }
      });
      Exp out = r.out;
      if (out instanceof Func) {
        String name = ((Func) out).name;
        if (eq(name, "sayIfTrue")) {
          r.out = new Func("output", ((Func) out).arg);
          r.in = new And(r.in, new Func("fact", ((Func) out).arg));
        } else if (eq(name, "inputToFact")) {
          r.out = new Func("fact", ((Func) out).arg);
          r.in = nlLogic_and(new Func("input", restructure(((Func) out).arg)), r.in);
        } else if (eqOneOf(name, "outputEval", "evalOutput")) {
          String var = "$_" + ++varCount;
          r.out = new Func("output", new Sentence2(var));
          r.in = new And(r.in, new Eq(new Sentence2(var), new Func("eval", ((Func) out).arg)));
        } else if (eq(name, "output")) {
          do {
            String pat = "*, * [...] * *";
            T3<String, String, String> t = jextractWithRests(pat, ((Func) out).argText());
            if (t == null)
              break;
            Matches m = new Matches();
            List<String> tok = javaTok(t.b);
            if (!jmatch(pat, tok, m))
              break;
            String x1 = m.get(0);
            if (!isDollarVar(x1) || !endsWith(x1, "1")) {
              print("x1");
              break;
            }
            String x = dropSuffix("1", x1);
            if (!eq(m.get(1), x + "2")) {
              print("x2");
              break;
            }
            if (!eq(m.get(3), x + "_n")) {
              print("x_n");
              break;
            }
            ((Func) out).name = "outputEval";
            ((Func) out).arg = new Sentence2(quote(t.a) + " + joinWithComma_specialLast((LS) call(ai_context(), 'getList, " + quote(x) + "), " + quote(joinSubList(tok, l(tok) - 5, l(tok) - 2)) + ")" + " + " + quote(t.c));
          } while (false);
        }
      }
      nlLogic_visit(r.in, new VF1<Object>() {

        public void get(Object o) {
          try {
            if (o instanceof Func)
              if (eqOneOf(((Func) o).name, "input", "fact")) {
                if (contains(((Func) o).options, "re"))
                  ((Func) o).arg = new Sentence2(ctxREToJavaRE(ctxExpandMacros(((Func) o).arg.text(), ctxMacros())));
                else {
                  String s = ai_expandPatternForAAndAn(((Func) o).arg.text());
                  if (s != null)
                    ((Func) o).arg = new Sentence2(s);
                }
              } else if (eq(((Func) o).name, "unresolvedFact")) {
                ((Func) o).name = "fact";
                ((Func) o).arg = new Sentence2("Unresolved fact: " + ((Func) o).arg.text());
              } else if (eq(((Func) o).name, "evalTrue")) {
                ((Func) o).name = "eval";
                ((Func) o).arg = new Sentence2(tok_addSemicolon(((Func) o).arg.text()) + " ret true;");
              }
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "// english a/an magic\r\n      if (o cast Func)\r\n        if (eqOneOf(o.name, 'i...";
        }
      });
    } while (neq(rendered, str(r)));
    return r;
  }

  public static List<IfThen> ai_parseRules(String s) {
    return map_pcall_notNull("nlLogic_parseRule", splitAtEmptyLines(s));
  }

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

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

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

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

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

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

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

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

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

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

  public static Pair<List<IfThen>, List<String>> ai_activeRulesAndFacts() {
    return ai_activeRulesAndFacts(null);
  }

  public static Pair<List<IfThen>, List<String>> ai_activeRulesAndFacts(List<String> extraFacts) {
    long _startTime_169 = sysNow();
    List<String> facts = concatLists_conservative(extraFacts, mL_facts());
    List<String> unparsedRules = ai_unparsedTalkRules();
    for (String listName : mL("Rule & Fact Lists")) for (String x : splitAtEmptyLines(mL_raw(listName))) if (anyJavaTokens(x))
      if (nlLogic_parseRule(x) != null)
        unparsedRules.add(x);
      else
        facts.add(x);
    unparsedRules = sortedByCalculatedField(unparsedRules, new F1<String, Object>() {

      public Object get(String s) {
        try {
          return jcontains(s, "entity(");
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "jcontains(s, \"entity(\")";
      }
    });
    List<IfThen> rules = map_pcall("nlLogic_parseRule", unparsedRules);
    for (String listName : mL("Default active scripts")) addAll(rules, nlLogic_loadMechScript(listName));
    nlLogic_expandMacros(rules);
    done2_always("ai_activeRulesAndFacts", _startTime_169);
    return pair(rules, facts);
  }

  public static List<IfThen> ai_rulesFromMechList(String listName) {
    return ai_parseRulesWithMacros(mL_raw(listName));
  }

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

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

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

  public static <A> List<A> reversed(Collection<A> l) {
    return reversedList(l);
  }

  public static <A> List<A> reversed(A[] l) {
    return reversedList(asList(l));
  }

  public static String reversed(String s) {
    return reversedString(s);
  }

  public static <A> List<A> concatLists(Collection<A>... lists) {
    List<A> l = new ArrayList();
    for (Collection<A> list : lists) if (list != null)
      l.addAll(list);
    return l;
  }

  public static <A> List<A> concatLists(Collection<? extends Collection<A>> lists) {
    List<A> l = new ArrayList();
    for (Collection<A> list : lists) if (list != null)
      l.addAll(list);
    return l;
  }

  public static <A> List<A> filter(Iterable<A> c, Object pred) {
    if (pred instanceof F1)
      return filter(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;
  }

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

  public static <A, B extends A> List filter(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;
  }

  public static <A, B extends A> List filter(F1<A, Boolean> pred, Iterable<B> c) {
    return filter(c, pred);
  }

  public static boolean ai_ruleAccessesInput(String rule) {
    List<String> tok = javaTokC(rule);
    String t;
    if (contains(tok, "ai_input"))
      return true;
    for (int i = 0; i < l(tok); i++) if (eqGet(tok, i + 1, "(") && isIdentifier(t = tok.get(i)))
      if (eq(t, "i") || swic(t, "input") || ewic(t, "input"))
        return true;
    return false;
  }

  public static boolean ai_ruleAccessesInput(IfThen rule) {
    final Flag flag = new Flag();
    nlLogic_visit(rule.in, new VF1<Object>() {

      public void get(Object o) {
        try {
          if (o instanceof Func) {
            String t = ((Func) o).name;
            if (eqOneOf(t, "i", "phrase") || swic(t, "input") || ewic(t, "input"))
              flag.raise();
          }
          if (o instanceof Exp)
            if (jcontains(((Exp) o).text(), "ai_input()"))
              flag.raise();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "if (o cast Func) {\r\n      S t = o.name;\r\n      if (eqOneOf(t, \"i\", \"phrase\") ...";
      }
    });
    return flag.isUp();
  }

  public static List<IfThen> nlLogic_safeLHSEvalsOnly(List<IfThen> rules) {
    return filter("nlLogic_allLHSEvalsSafe", rules);
  }

  public static String n2(long l) {
    return formatWithThousands(l);
  }

  public static String n2(Collection l) {
    return n2(l(l));
  }

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

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

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

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

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

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

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

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

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

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

  public static void nlLogic_fillBattleSpace(NLLogicChecker_v2 c, final List<RuleWithParams> battleSpace, boolean debug) {
    VF2<IfThen, NLLogicChecker_v2.Matching> onRuleFired = new VF2<IfThen, NLLogicChecker_v2.Matching>() {

      public void get(IfThen rule, NLLogicChecker_v2.Matching m) {
        try {
          battleSpace.add(new RuleWithParams(rule, m.matches));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "battleSpace.add(new RuleWithParams(rule, m.matches));";
      }
    };
    if (c.useIterate) {
      print("Iterating over " + n2(c.rules, "rule"));
      applyNLLogicFacts_v4_iterate_verbose.set(debug);
      applyNLLogicFacts_v4_iterate(c, onRuleFired, c.rules);
    } else {
      applyNLLogicFacts_v4_verbose.set(debug);
      applyNLLogicFacts_v4(c, onRuleFired, c.rules);
    }
  }

  public static ExecutedRule nlLogic_executedRuleFromRuleWithParams(RuleWithParams r) {
    return nlLogic_executedRuleFromRuleWithParams(r, null);
  }

  public static ExecutedRule nlLogic_executedRuleFromRuleWithParams(RuleWithParams r, NLLogicChecker_v2 logicChecker) {
    List<Exp> l = nlLogic_unrollAndApplyRuleWithParams(r);
    if (r instanceof FailedRule) {
      ExecutedRule e = new ExecutedRule();
      e.logicChecker = logicChecker;
      e.rule = ((FailedRule) r);
      assertNotNull(((FailedRule) r).remainingCondition);
      return e;
    }
    ExecutedRule e = new ExecutedRule(r, nlLogic_certainOperatorArgs(l, "output", "say"), nlLogic_certainOperatorArgs(l, "fact"), nlLogic_certainOperatorArgs(l, "input"));
    e.logicChecker = logicChecker;
    return e;
  }

  public static Class __javax;

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

  public static boolean nemptyString(String s) {
    return s != null && s.length() > 0;
  }

  public static int strL(String s) {
    return s == null ? 0 : s.length();
  }

  public static int listL(Collection l) {
    return l == null ? 0 : l.size();
  }

  public static boolean neq(Object a, Object b) {
    return !eq(a, b);
  }

  public static String formatSnippetIDOpt(String s) {
    return isSnippetID(s) ? formatSnippetID(s) : s;
  }

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

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

  public static Class getMainClass() {
    return mc();
  }

  public static Class getMainClass(Object o) {
    try {
      if (o == null)
        return null;
      if (o instanceof Class && eq(((Class) o).getName(), "x30"))
        return (Class) o;
      return (o instanceof Class ? (Class) o : o.getClass()).getClassLoader().loadClass("main");
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static volatile boolean ping_pauseAll;

  public static int ping_sleep = 100;

  public static volatile boolean ping_anyActions;

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

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

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

  public static 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);
    }
  }

  public static <A> A shallowClone(A o) {
    return (A) shallowClone_impl(o);
  }

  public static Object shallowClone_impl(Object o) {
    if (o == null)
      return o;
    if (o instanceof List)
      return cloneList((List) o);
    if (o instanceof Map)
      return cloneMap(((Map) o));
    if (o instanceof String || o instanceof Number || o instanceof Boolean)
      return o;
    if (o instanceof Object[]) {
      Object[] l = (Object[]) o;
      return l.clone();
    }
    Class c = o.getClass();
    final Object clone = nuEmptyObject(c);
    copyFields(o, clone);
    return clone;
  }

  public static String dm_requireModule(String moduleLibID) {
    return dm_makeModule(moduleLibID);
  }

  public static boolean useLocalMechListCopies_flag;

  public static boolean useLocalMechListCopies() {
    return useLocalMechListCopies_flag;
  }

  public static void useLocalMechListCopies(boolean flag) {
    useLocalMechListCopies_flag = flag;
    if (flag)
      mechMode().readMode = "localCopies";
  }

  public static void setOptMC(String field, Object value) {
    setOpt(mc(), field, value);
  }

  public static HashMap litmap(Object... x) {
    HashMap map = new HashMap();
    litmap_impl(map, x);
    return map;
  }

  public static void litmap_impl(Map map, Object... x) {
    for (int i = 0; i < x.length - 1; i += 2) if (x[i + 1] != null)
      map.put(x[i], x[i + 1]);
  }

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

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

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

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

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

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

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

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

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

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

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

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

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

  public static <A, B, C> A first(T3<A, B, C> t) {
    return t == null ? null : t.a;
  }

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

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

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

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

  public static Component wrapForSmartAdd(Object o) {
    if (o == null)
      return jpanel();
    if (o instanceof String)
      return jlabel((String) o);
    return wrap(o);
  }

  public static Object[] flattenArray2(Object... a) {
    List l = new ArrayList();
    if (a != null)
      for (Object x : a) if (x instanceof Object[])
        l.addAll(asList((Object[]) x));
      else if (x instanceof Collection)
        l.addAll((Collection) x);
      else
        l.add(x);
    return asObjectArray(l);
  }

  public static <A> List<A> withoutNulls(List<A> l) {
    if (!containsNulls(l))
      return l;
    List<A> l2 = new ArrayList();
    for (A a : l) if (a != null)
      l2.add(a);
    return l2;
  }

  public static <A, B> Map<A, B> withoutNulls(Map<A, B> map) {
    Map<A, B> map2 = similarEmptyMap(map);
    for (A a : keys(map)) if (a != null) {
      B b = map.get(a);
      if (b != null)
        map2.put(a, b);
    }
    return map2;
  }

  public static JComboBox jComboBox(final String... items) {
    return jcombobox(items);
  }

  public static JComboBox jComboBox(Collection<String> items) {
    return jcombobox(items);
  }

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

  public static <A extends JComboBox> A bindComboBoxToLiveValue(final A cb, final SimpleLiveValue<String> lv) {
    final boolean debug = isTrue(bindComboBoxToLiveValue_debug.get());
    bindLiveValueListenerToComponent(cb, lv, new Runnable() {

      public void run() {
        try {
          selectItem(cb, lv.get());
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "selectItem(cb, lv.get())";
      }
    });
    onChange(cb, new Runnable() {

      public void run() {
        try {
          String s = getText(cb);
          if (debug)
            print("ComboBox: " + s);
          lv.set(s);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "String s = getText(cb); // also works on editable combo boxes\r\n    if (debug)...";
      }
    });
    return cb;
  }

  public static <A> A vm_generalMap_get(Object key) {
    return (A) vm_generalMap().get(key);
  }

  public static <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 "ret nuObject(c, args);";
      }
    });
  }

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

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

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

      public void actionPerformed(java.awt.event.ActionEvent _evt) {
        try {
          _threadInheritInfo(info);
          AutoCloseable __244 = holdInstance(instanceToHold);
          try {
            callF(runnable);
          } finally {
            _close(__244);
          }
        } catch (Throwable __e) {
          messageBox(__e);
        }
      }
    };
  }

  public static String defaultThreadName_name;

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

  public static Runnable wrapAsActivity(Object r) {
    return toRunnable(r);
  }

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

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

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

  public static Runnable toRunnable(final Object o) {
    if (o instanceof Runnable)
      return (Runnable) o;
    return new Runnable() {

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

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

  public static Map<Thread, Boolean> _registerThread_threads;

  public static Object _onRegisterThread;

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

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

  public static <A> List<A> childrenOfType(Component c, Class<A> theClass) {
    List<A> l = new ArrayList();
    scanForComponents(c, theClass, l);
    return l;
  }

  public static <A> List<A> childrenOfType(Class<A> theClass, Component c) {
    return childrenOfType(c, theClass);
  }

  public static void onFirstResize(final Component c, final Object r) {
    if (c != null && r != null) {
      swing(new Runnable() {

        public void run() {
          try {
            c.addComponentListener(new ComponentAdapter() {

              public void componentResized(ComponentEvent e) {
                c.removeComponentListener(this);
                pcallF(r);
              }
            });
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "c.addComponentListener(new ComponentAdapter {\r\n      public void componentRes...";
        }
      });
    }
  }

  public static <A extends JComponent> A bindLiveValueListenerToComponent(A component, final LiveValue lv, final Runnable listener) {
    if (lv != null)
      bindToComponent(component, new Runnable() {

        public void run() {
          try {
            lv.onChangeAndNow(listener);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "ifdef bindLiveValueListenerToComponent_debug\r\n          print(\"bindLiveValueL...";
        }
      }, new Runnable() {

        public void run() {
          try {
            lv.removeOnChangeListener(listener);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "lv.removeOnChangeListener(listener)";
        }
      });
    return component;
  }

  public static <A extends JTextComponent> A setTextKeepCaret(final String text, final A c) {
    if (c != null) {
      swing(new Runnable() {

        public void run() {
          try {
            int caret = c.getCaretPosition();
            setText(c, text);
            setCaretPosition(c, caret);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "int caret = c.getCaretPosition();\r\n    setText(c, text);\r\n    setCaretPositio...";
        }
      });
    }
    return c;
  }

  public static <A extends JTextComponent> A setTextKeepCaret(A c, String text) {
    return setTextKeepCaret(text, c);
  }

  public static void onChange(JSpinner spinner, Object r) {
    spinner.addChangeListener(changeListener(r));
  }

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

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

  public static void onChange(final JSlider slider, final Object r) {
    {
      swing(new Runnable() {

        public void run() {
          try {
            slider.addChangeListener(changeListener(r));
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "slider.addChangeListener(changeListener(r));";
        }
      });
    }
  }

  public static void onChange(JComboBox cb, final Object r) {
    if (isEditableComboBox(cb))
      onChange(textFieldFromComboBox(cb), r);
    else
      onSelectedItem(cb, new VF1<String>() {

        public void get(String s) {
          try {
            callF(r);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

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

  public static 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 "ret c.getText();";
      }
    });
  }

  public static 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 "ret c.getText();";
      }
    });
  }

  public static 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 "ret l.getText();";
      }
    });
  }

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

  public static JTextArea wrappedTextArea(final JTextArea ta) {
    enableWordWrapForTextArea(ta);
    return ta;
  }

  public static JTextArea wrappedTextArea() {
    return wrappedTextArea(jtextarea());
  }

  public static JTextArea wrappedTextArea(String text) {
    JTextArea ta = wrappedTextArea();
    setText(ta, text);
    return ta;
  }

  public static JTextArea newTypeWriterTextArea() {
    return newTypeWriterTextArea("");
  }

  public static JTextArea newTypeWriterTextArea(String text) {
    return setFont(jTextArea(text), typeWriterFont());
  }

  public static Throwable printStackTrace(Throwable e) {
    print(getStackTrace(e));
    return e;
  }

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

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

  public static void lockOrFail(Lock lock, long timeout) {
    try {
      ping();
      if (!lock.tryLock(timeout, TimeUnit.MILLISECONDS)) {
        String s = "Couldn't acquire lock after " + timeout + " ms.";
        if (lock instanceof ReentrantLock) {
          ReentrantLock l = (ReentrantLock) (lock);
          s += " Hold count: " + l.getHoldCount() + ", owner: " + call(l, "getOwner");
        }
        throw fail(s);
      }
      ping();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static ReentrantLock fairLock() {
    return new ReentrantLock(true);
  }

  public static boolean containsSpace(String s) {
    return containsSpaces(s);
  }

  public static String firstToUpper(String s) {
    if (empty(s))
      return s;
    return Character.toUpperCase(s.charAt(0)) + s.substring(1);
  }

  public static String joinWithSpace(Collection<String> c) {
    return join(" ", c);
  }

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

  public static <A> List<A> replaceElementsUsingMap(Iterable<A> l, final Map<A, A> map) {
    return map(l, new F1<A, A>() {

      public A get(A a) {
        try {
          return getOrKeep(map, a);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "getOrKeep(map, a)";
      }
    });
  }

  public static List<String> splitCamelCase(String s) {
    return ai_splitCamelCase(s);
  }

  public static boolean isJavaIdentifier(String s) {
    if (empty(s) || !Character.isJavaIdentifierStart(s.charAt(0)))
      return false;
    for (int i = 1; i < s.length(); i++) if (!Character.isJavaIdentifierPart(s.charAt(i)))
      return false;
    return true;
  }

  public static JCheckBox jCheckBox() {
    return swingNu(JCheckBox.class);
  }

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

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

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

  public static JCheckBox jCheckBox(String text, boolean checked, final Object onChange) {
    JCheckBox cb = jCheckBox(checked, onChange);
    cb.setText(text);
    return cb;
  }

  public static JCheckBox jCheckBox(boolean checked, final Object onChange) {
    final JCheckBox cb = jCheckBox(checked);
    cb.addChangeListener(new ChangeListener() {

      public void stateChanged(ChangeEvent e) {
        pcallF(onChange, cb.isSelected());
      }
    });
    return cb;
  }

  public static <A extends JCheckBox> A bindCheckBoxToLiveValue(final A cb, final SimpleLiveValue<Boolean> lv) {
    bindLiveValueListenerToComponent(cb, lv, new Runnable() {

      public void run() {
        try {
          setChecked(cb, isTrue(lv.get()));
          ;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "ifdef bindCheckBoxToLiveValue_debug\r\n      print(\"bindCheckBoxToLiveValue: se...";
      }
    });
    onChange(cb, new Runnable() {

      public void run() {
        try {
          lv.set(isChecked(cb));
          ;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "ifdef bindCheckBoxToLiveValue_debug\r\n      print(\"bindCheckBoxToLiveValue: se...";
      }
    });
    return cb;
  }

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

  public static boolean eqic(char a, char b) {
    if (a == b)
      return true;
    char u1 = Character.toUpperCase(a);
    char u2 = Character.toUpperCase(b);
    if (u1 == u2)
      return true;
    return Character.toLowerCase(u1) == Character.toLowerCase(u2);
  }

  public static int indexOfIgnoreCase(List<String> a, String b) {
    return indexOfIgnoreCase(a, b, 0);
  }

  public static int indexOfIgnoreCase(List<String> a, String b, int i) {
    int n = l(a);
    for (; i < n; i++) if (eqic(a.get(i), b))
      return i;
    return -1;
  }

  public static int indexOfIgnoreCase(String a, String b) {
    return indexOfIgnoreCase_manual(a, b);
  }

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

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

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

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

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

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

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

  public static volatile PersistableThrowable _handleException_lastException;

  public static List _handleException_onException = synchroList(ll("printStackTrace2"));

  public static void _handleException(Throwable e) {
    _handleException_lastException = persistableThrowable(e);
    Throwable e2 = innerException(e);
    if (e2.getClass() == RuntimeException.class && eq(e2.getMessage(), "Thread cancelled.") || e2 instanceof InterruptedException)
      return;
    for (Object f : cloneList(_handleException_onException)) try {
      callF(f, e);
    } catch (Throwable e3) {
      printStackTrace2(e3);
    }
  }

  public static void nlLogic_visit(IfThen rule, VF1<Object> visitor) {
    if (rule == null)
      return;
    callF(visitor, rule);
    nlLogic_visit(rule.in, visitor);
    nlLogic_visit(rule.out, visitor);
  }

  public static void nlLogic_visit(Exp e, VF1<Object> visitor) {
    if (e == null)
      return;
    callF(visitor, e);
    if (e instanceof And) {
      nlLogic_visit(((And) e).a, visitor);
      nlLogic_visit(((And) e).b, visitor);
    } else if (e instanceof ExpNot)
      nlLogic_visit(((ExpNot) e).a, visitor);
    else if (e instanceof Func)
      nlLogic_visit(((Func) e).arg, visitor);
  }

  public static void nlLogic_visit(Collection l, VF1<Object> visitor) {
    for (Object o : unnull(l)) nlLogic_visit(o, visitor);
  }

  public static void nlLogic_visit(Object o, VF1<Object> visitor) {
    if (o instanceof Exp)
      nlLogic_visit(((Exp) o), visitor);
    if (o instanceof IfThen)
      nlLogic_visit(((IfThen) o), visitor);
    if (o instanceof Collection)
      nlLogic_visit(((Collection) o), visitor);
  }

  public static Exp nlLogic_and(Exp a, Exp b) {
    return a == null ? b : b == null ? a : new And(a, b);
  }

  public static Exp nlLogic_and(List<Exp> l) {
    if (empty(l))
      return null;
    Exp e = last(l);
    for (int i = l(l) - 2; i >= 0; i--) e = new And(l.get(i), e);
    return e;
  }

  public static <A> A restructure(A a) {
    return (A) unstructure(structure(a));
  }

  public static boolean eqOneOf(Object o, Object... l) {
    for (Object x : l) if (eq(o, x))
      return true;
    return false;
  }

  public static T3<String, String, String> jextractWithRests(String pat, String s) {
    return jextractWithRests(pat, javaTok(s));
  }

  public static T3<String, String, String> jextractWithRests(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 t3(joinSubList(tok, 0, i), joinSubList(tok, i, j), joinSubList(tok, j));
  }

  public static int javaTok_n, javaTok_elements;

  public static boolean javaTok_opt;

  public static List<String> javaTok(String s) {
    ++javaTok_n;
    ArrayList<String> tok = new ArrayList();
    int l = s == null ? 0 : s.length();
    int i = 0, n = 0;
    while (i < l) {
      int j = i;
      char c, d;
      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 == '\'' && 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)) || "'".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));
      ++n;
      i = j;
    }
    if ((tok.size() % 2) == 0)
      tok.add("");
    javaTok_elements += tok.size();
    return tok;
  }

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

  public static boolean jmatch(String pat, String s) {
    return jmatch(pat, s, null);
  }

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

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

  public static boolean jmatch(String pat, List<String> toks, Matches matches) {
    List<String> tokpat = javaTok(pat);
    String[] m = match2(tokpat, toks);
    if (m == null)
      return false;
    else {
      if (matches != null)
        matches.m = m;
      return true;
    }
  }

  public static boolean isDollarVar(String s) {
    return startsWith(s, '$') && isJavaIdentifierAfter(s, 1);
  }

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

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

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

  public static String dropSuffix(String suffix, String s) {
    return s.endsWith(suffix) ? s.substring(0, l(s) - l(suffix)) : s;
  }

  public static String quote(Object o) {
    if (o == null)
      return "null";
    return quote(str(o));
  }

  public static String quote(String s) {
    if (s == null)
      return "null";
    StringBuilder out = new StringBuilder((int) (l(s) * 1.5 + 2));
    quote_impl(s, out);
    return out.toString();
  }

  public static void quote_impl(String s, StringBuilder out) {
    out.append('"');
    int l = s.length();
    for (int i = 0; i < l; i++) {
      char c = s.charAt(i);
      if (c == '\\' || c == '"')
        out.append('\\').append(c);
      else if (c == '\r')
        out.append("\\r");
      else if (c == '\n')
        out.append("\\n");
      else if (c == '\0')
        out.append("\\0");
      else
        out.append(c);
    }
    out.append('"');
  }

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

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

  public static String joinSubList(List<String> l, IntRange r) {
    return r == null ? null : joinSubList(l, r.start, r.end);
  }

  public static String ctxREToJavaRE(String s) {
    return s.replace("_", "\\b").replaceFirst("<MATCH1>", "(?<M1>").replaceFirst("<MATCH2>", "(?<M2>").replaceFirst("<MATCH3>", "(?<M3>").replaceFirst("<MATCH4>", "(?<M4>").replaceFirst("<MATCH5>", "(?<M5>").replaceAll("<MATCH\\d+>", "(").replaceAll("<\\\\MATCH\\d+>", ")");
  }

  public static boolean ctxExpandMacros_debug;

  public static String ctxExpandMacros(String s, Map<String, String> macros) {
    while (true) {
      String s2 = ctxExpandMacros_step(s, macros);
      if (eq(s, s2))
        return s;
      s = s2;
    }
  }

  public static String ctxExpandMacros_step(String s, Map<String, String> macros) {
    Matcher m = regexp("#([A-Z_0-9]+)#", s);
    while (m.find()) {
      if (ctxExpandMacros_debug)
        print("Replacing " + m.group(1));
      String key = m.group(1);
      String macro = macros.get(key);
      if (macro == null)
        macro = "#\\\"\\+\\?@";
      s = s.replace(m.group(), macro);
    }
    return s;
  }

  public static MechListDependentCache<Map<String, String>> ctxMacros_cache = new MechListDependentCache("Ctx Macros (German)", new F1<String, Map<String, String>>() {

    public Map<String, String> get(String list) {
      try {
        Map<String, String> out = new HashMap();
        for (String s : tlft(list)) {
          int idx = s.indexOf("=");
          if (idx >= 0)
            out.put(trimSubstring(s, 0, idx), trimSubstring(s, idx + 1));
        }
        return out;
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }

    public String toString() {
      return "new SS out;\r\n    for (S s : tlft(list)) {\r\n      int idx = s.indexOf(\"=\");\r\n ...";
    }
  });

  public static Map<String, String> ctxMacros() {
    return ctxMacros_cache.get();
  }

  public static String ai_expandPatternForAAndAn(String s) {
    List<String> tok = javaTok(s);
    if (!cicOneOf(tok, "a", "an") || contains(tok, "|"))
      return null;
    List<Integer> indices = indicesOfAnyIC(tok, "a", "an");
    int n = l(indices);
    if (n == 0)
      return null;
    List<String> out = new ArrayList();
    for (List<String> l : allCombinations(rep(n, ll("a", "an")))) {
      for (int i = 0; i < l(l); i++) tok.set(indices.get(i), l.get(i));
      out.add(join(tok));
    }
    return join("|", out);
  }

  public static String tok_addSemicolon(List<String> tok) {
    String lastToken = get(tok, (l(tok) | 1) - 2);
    if (eqOneOf(lastToken, "}", ";"))
      return join(tok);
    return join(tok) + ";";
  }

  public static String tok_addSemicolon(String s) {
    return tok_addSemicolon(javaTok(s));
  }

  public static List map_pcall_notNull(Iterable l, Object f) {
    return map_pcall_notNull(f, l);
  }

  public static List map_pcall_notNull(Object f, Iterable l) {
    List x = new ArrayList();
    for (Object o : unnull(l)) {
      try {
        addIfNotNull(x, callF(f, o));
      } catch (Throwable __e) {
        _handleException(__e);
      }
    }
    return x;
  }

  public static IfThen nlLogic_parseRule(String s) {
    IfThen rule = new IfThen();
    rule.originalText = s;
    List<String> tok = javaTokPlusBrackets2(s);
    if (isSquareBracketed(get(tok, 1))) {
      List<String> tokOptions = javaTokPlusBrackets2(deSquareBracket(get(tok, 1)));
      Matches m = new Matches();
      for (String option : tok_splitAtComma(tokOptions)) {
        if (startsWith_trim(option, "id: ", m))
          rule.globalID = m.rest();
        else
          rule.options = linkedHashSet_addWithAutoInit(rule.options, option);
      }
      tok = dropFirst(2, tok);
    }
    List<String> l = splitAtDoubleArrow(tok);
    if (l(l) > 2 || l(l) == 0)
      return null;
    rule.out = nlLogic_parseExpression(last(l));
    rule.in = nlLogic_parseExpression(nextToLast(l));
    if (rule.globalID == null)
      rule.globalID = textMD5ToGlobalID(str(rule));
    return rule;
  }

  public static List<String> splitAtEmptyLines(String text) {
    List<String> lines = toLines(text);
    int n = l(lines), i = 0;
    List<String> parts = new ArrayList();
    while (true) {
      while (i < n && emptyAfterTrim(lines.get(i))) ++i;
      if (i >= n)
        break;
      int j = i;
      while (j < n && !emptyAfterTrim(lines.get(j))) ++j;
      parts.add(fromLines(subList(lines, i, j)));
      i = j;
    }
    return parts;
  }

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

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

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

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

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

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

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

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

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

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

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

  public static short max(short[] c) {
    short x = -0x8000;
    for (short d : c) if (d > x)
      x = d;
    return x;
  }

  public static int max(int[] c) {
    int x = Integer.MIN_VALUE;
    for (int d : c) if (d > x)
      x = d;
    return x;
  }

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

  public static List<String> toLines(String s) {
    List<String> lines = new ArrayList<String>();
    if (s == null)
      return lines;
    int start = 0;
    while (true) {
      int i = toLines_nextLineBreak(s, start);
      if (i < 0) {
        if (s.length() > start)
          lines.add(s.substring(start));
        break;
      }
      lines.add(s.substring(start, i));
      if (s.charAt(i) == '\r' && i + 1 < s.length() && s.charAt(i + 1) == '\n')
        i += 2;
      else
        ++i;
      start = i;
    }
    return lines;
  }

  public static int toLines_nextLineBreak(String s, int start) {
    for (int i = start; i < s.length(); i++) {
      char c = s.charAt(i);
      if (c == '\r' || c == '\n')
        return i;
    }
    return -1;
  }

  public static CloseableIterableIterator<String> linesFromFile(File f) {
    try {
      if (!f.exists())
        return emptyCloseableIterableIterator();
      if (ewic(f.getName(), ".gz"))
        return linesFromReader(utf8bufferedReader(newGZIPInputStream(f)));
      return linesFromReader(utf8bufferedReader(f));
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static <A> A setThreadLocal(ThreadLocal<A> tl, A value) {
    if (tl == null)
      return null;
    A old = tl.get();
    tl.set(value);
    return old;
  }

  public static long sysNow() {
    ping();
    return System.nanoTime() / 1000000;
  }

  public static <A> List<A> concatLists_conservative(List<A> a, List<A> b) {
    if (empty(a))
      return b;
    if (empty(b))
      return a;
    return concatLists(a, b);
  }

  public static List<String> mL_facts() {
    return concatLists(mL("Random facts"), mL("Derived facts"));
  }

  public static List<String> ai_unparsedTalkRules() {
    return splitAtEmptyLines(mL_raw("NL Logic Examples"));
  }

  public static List<String> mL(String name) {
    return mechList_opt(name);
  }

  public static String mL_raw(String name) {
    return mechList_raw(name);
  }

  public static boolean anyJavaTokens(String s) {
    return !noJavaTokens(s);
  }

  public static <A> List<A> sortedByCalculatedField(Iterable<A> c, Object f) {
    return sortByCalculatedField(c, f);
  }

  public static <A> List<A> sortedByCalculatedField(Object f, Iterable<A> c) {
    return sortedByCalculatedField(c, f);
  }

  public static boolean jcontains(String s, String pat) {
    return jfind(s, pat) >= 0;
  }

  public static boolean jcontains(List<String> tok, String pat) {
    return jfind(tok, pat) >= 0;
  }

  public static boolean jcontains(List<String> tok, String pat, Object condition) {
    return jfind(tok, pat, condition) >= 0;
  }

  public static List map_pcall(Iterable l, Object f) {
    return map_pcall(f, l);
  }

  public static List map_pcall(Object f, Iterable l) {
    List x = new ArrayList();
    for (Object o : unnull(l)) {
      try {
        x.add(callF(f, o));
      } catch (Throwable __e) {
        _handleException(__e);
      }
    }
    return x;
  }

  public static List map_pcall(Object f, Object[] l) {
    List x = new ArrayList();
    for (Object o : unnull(l)) {
      try {
        x.add(callF(f, o));
      } catch (Throwable __e) {
        _handleException(__e);
      }
    }
    return x;
  }

  public static <A, B extends A> void addAll(Collection<A> c, Iterable<B> b) {
    if (c != null && b != null)
      for (A a : b) c.add(a);
  }

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

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

  public static List<IfThen> nlLogic_loadMechScript(String listName) {
    List<IfThen> out = new ArrayList();
    Matches m = new Matches();
    String scriptID = "";
    for (String s : splitAtEmptyLines(mL_raw(listName))) {
      try {
        if (match("this is script *", s, m)) {
          scriptID = m.unq(0) + "-";
          continue;
        }
        IfThen rule = nlLogic_parseRule(s);
        if (rule != null)
          out.add(rule);
        else
          print("Couldn't parse: " + s);
      } catch (Throwable __e) {
        _handleException(__e);
      }
    }
    nlLogic_setScriptID(out, scriptID);
    return out;
  }

  public static long done2_always(long startTime, String desc) {
    long time = sysNow() - startTime;
    print(desc + " [" + time + " ms]");
    return time;
  }

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

  public static long done2_always(long startTime) {
    return done2_always(startTime, "");
  }

  public static <A> List<A> reversedList(Collection<A> l) {
    List<A> x = cloneList(l);
    Collections.reverse(x);
    return x;
  }

  public static String reversedString(String s) {
    return reverseString(s);
  }

  public static List<String> javaTokC(String s) {
    if (s == null)
      return null;
    int l = s.length();
    ArrayList<String> tok = new ArrayList();
    int i = 0;
    while (i < l) {
      int j = i;
      char c, d;
      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;
  }

  public static boolean eqGet(List l, int i, Object o) {
    return eq(get(l, i), o);
  }

  public static <A, B> boolean eqGet(Map<A, B> map, A key, Object o) {
    return eq(mapGet(map, key), o);
  }

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

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

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

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

  public static boolean nlLogic_allLHSEvalsSafe(IfThen rule) {
    for (String code : nlLogic_allLHSEvalFragments(rule)) if (!isSafeCodeFragment(code))
      return false;
    return true;
  }

  public static String formatWithThousands(long l) {
    return formatWithThousandsSeparator(l);
  }

  public static double fraction(double d) {
    return d % 1;
  }

  public static String n_fancy2(long l, String singular, String plural) {
    return formatWithThousandsSeparator(l) + " " + trim(l == 1 ? singular : plural);
  }

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

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

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

  public static ThreadLocal<Boolean> applyNLLogicFacts_v4_iterate_verbose = new ThreadLocal();

  public static void applyNLLogicFacts_v4_iterate(String input, VF2<IfThen, NLLogicChecker_v2.Matching> onRuleFired) {
    applyNLLogicFacts_v4_iterate(input, onRuleFired, mL_facts());
  }

  public static void applyNLLogicFacts_v4_iterate(String input, VF2<IfThen, NLLogicChecker_v2.Matching> onRuleFired, List<String> facts) {
    applyNLLogicFacts_v4_iterate(input, onRuleFired, facts, ai_mL_parsedLogicExamples2());
  }

  public static void applyNLLogicFacts_v4_iterate(String input, VF2<IfThen, NLLogicChecker_v2.Matching> onRuleFired, List<String> facts, List<IfThen> rules) {
    NLLogicChecker_v2 c = new NLLogicChecker_v2();
    c.matcher = new NLStringMatcher_dollarVars();
    addAll(c.facts, facts);
    c.input = input;
    applyNLLogicFacts_v4_iterate(c, onRuleFired, rules);
  }

  public static void applyNLLogicFacts_v4_iterate(final NLLogicChecker_v2 c, final VF2<IfThen, NLLogicChecker_v2.Matching> onRuleFired, List<IfThen> rules) {
    c.rules = rules;
    for (final IfThen rule : rules) {
      try {
        final NLLogicChecker_v2.Matching m = new NLLogicChecker_v2.Matching();
        m.verbose = isTrue(applyNLLogicFacts_v4_iterate_verbose.get());
        if (m.verbose)
          print("Checking rule (iterating): " + rule);
        c.iterate(rule.in, m, new Runnable() {

          public void run() {
            try {
              if (m.verbose) {
                print("Matched " + quote(c.input) + " with rule " + quote(rule));
                printStruct("  ", m.matches);
              }
              callF(onRuleFired, rule, m);
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "if (m.verbose) {\r\n        print(\"Matched \" + quote(c.input) + \" with rule \" +...";
          }
        });
      } catch (Throwable __e) {
        _handleException(__e);
      }
    }
  }

  public static ThreadLocal<Boolean> applyNLLogicFacts_v4_verbose = new ThreadLocal();

  public static void applyNLLogicFacts_v4(String input, VF2<IfThen, NLLogicChecker_v2.Matching> onRuleFired) {
    applyNLLogicFacts_v4(input, onRuleFired, mL_facts());
  }

  public static void applyNLLogicFacts_v4(String input, VF2<IfThen, NLLogicChecker_v2.Matching> onRuleFired, List<String> facts) {
    applyNLLogicFacts_v4(input, onRuleFired, facts, ai_mL_parsedLogicExamples2());
  }

  public static void applyNLLogicFacts_v4(String input, VF2<IfThen, NLLogicChecker_v2.Matching> onRuleFired, List<String> facts, List<IfThen> rules) {
    NLLogicChecker_v2 c = new NLLogicChecker_v2();
    c.matcher = new NLStringMatcher_dollarVars();
    addAll(c.facts, facts);
    c.input = input;
    applyNLLogicFacts_v4(c, onRuleFired, rules);
  }

  public static void applyNLLogicFacts_v4(NLLogicChecker_v2 c, VF2<IfThen, NLLogicChecker_v2.Matching> onRuleFired, List<IfThen> rules) {
    c.rules = rules;
    for (IfThen rule : rules) {
      try {
        NLLogicChecker_v2.Matching m = new NLLogicChecker_v2.Matching();
        m.verbose = isTrue(applyNLLogicFacts_v4_verbose.get());
        if (m.verbose)
          print("Checking rule: " + rule);
        if (c.checkRule(rule, m)) {
          print("Matched " + quote(c.input) + " with rule " + quote(rule));
          printStruct(m.matches);
          callF(onRuleFired, rule, m);
        }
      } catch (Throwable __e) {
        _handleException(__e);
      }
    }
  }

  public static List<Exp> nlLogic_unrollAndApplyRuleWithParams(RuleWithParams r) {
    List<Exp> out = new ArrayList();
    for (Exp e : nlLogic_unrollAnd(r.rule.out)) {
      e = nlLogic_applyMatches(e, r.matches);
      if (!nlLogic_checkHelper(e, r.matches))
        out.add(e);
    }
    return out;
  }

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

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

  public static Collection<String> nlLogic_certainOperatorArgs(List<Exp> l, String... operators) {
    HashSet<String> set = lithashset(operators);
    LinkedHashSet<String> out = new LinkedHashSet();
    for (Exp e : unnull(l)) {
      if (e instanceof Func)
        if (set.contains(((Func) e).name))
          out.add(nlLogic_text(((Func) e).arg));
    }
    return out;
  }

  public static Throwable printStackTrace2(Throwable e) {
    print(getStackTrace2(e));
    return e;
  }

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

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

  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;
  }

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

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

  public static void failIfUnlicensed() {
    assertTrue("license off", licensed());
  }

  public static Thread currentThread() {
    return Thread.currentThread();
  }

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

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

  public static <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);
    }
  }

  public static Map<Class, Constructor> nuEmptyObject_cache = newDangerousWeakHashMap();

  public static <A> A nuEmptyObject(Class<A> c) {
    try {
      Constructor ctr;
      synchronized (nuEmptyObject_cache) {
        ctr = nuEmptyObject_cache.get(c);
        if (ctr == null) {
          nuEmptyObject_cache.put(c, ctr = nuEmptyObject_findConstructor(c));
          ctr.setAccessible(true);
        }
      }
      try {
        return (A) ctr.newInstance();
      } catch (InstantiationException e) {
        if (empty(e.getMessage()))
          if ((c.getModifiers() & Modifier.ABSTRACT) != 0)
            throw fail("Can't instantiate abstract class " + className(c), e);
          else
            throw fail("Can't instantiate " + className(c), e);
        else
          throw rethrow(e);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  public static <A> A copyFields(Object x, A y, String... fields) {
    if (empty(fields)) {
      Map<String, Object> map = objectToMap(x);
      for (String field : map.keySet()) setOpt(y, field, map.get(field));
    } else
      for (String field : fields) {
        Object o = getOpt(x, field);
        if (o != null)
          setOpt(y, field, o);
      }
    return y;
  }

  public static <A> A copyFields(Object x, A y, Collection<String> fields) {
    return copyFields(x, y, asStringArray(fields));
  }

  public static String dm_makeModule(String moduleLibID) {
    return (String) callCreator("makeModule", moduleLibID);
  }

  public static MechMode mechMode_value = new MechMode();

  public static MechMode mechMode() {
    return mechMode_value;
  }

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

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

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

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

  public static JPanel jpanel() {
    return swingNu(JPanel.class);
  }

  public static Object[] asObjectArray(List l) {
    return toObjectArray(l);
  }

  public static boolean containsNulls(Collection c) {
    return contains(c, null);
  }

  public static Map similarEmptyMap(Map m) {
    if (m instanceof TreeMap)
      return new TreeMap(((TreeMap) m).comparator());
    if (m instanceof LinkedHashMap)
      return new LinkedHashMap();
    return new HashMap();
  }

  public static <A, B> Set<A> keys(Map<A, B> map) {
    return map == null ? new HashSet() : map.keySet();
  }

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

  public static <A, B> Set<A> keys(MultiMap<A, B> mm) {
    return mm.keySet();
  }

  public static JComboBox jcombobox(final String... items) {
    return swing(new F0<JComboBox>() {

      public JComboBox get() {
        try {
          return new JComboBox(items);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "ret new JComboBox(items);";
      }
    });
  }

  public static JComboBox jcombobox(Collection<String> items) {
    return jcombobox(toStringArray(items));
  }

  public static JComboBox jcombobox(Collection<String> items, String selectedItem) {
    return selectItem(selectedItem, jcombobox(items));
  }

  public static JComboBox selectItem(final String item, final JComboBox cb) {
    if (cb != null) {
      swing(new Runnable() {

        public void run() {
          try {
            cb.setSelectedItem(item);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

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

  public static JComboBox selectItem(final JComboBox cb, final String item) {
    return selectItem(item, cb);
  }

  public static Map vm_generalMap_map;

  public static Map vm_generalMap() {
    if (vm_generalMap_map == null)
      vm_generalMap_map = (Map) get(javax(), "generalMap");
    return vm_generalMap_map;
  }

  public static Object nuObject(String className, Object... args) {
    try {
      return nuObject(classForName(className), args);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static <A> A nuObject(Class<A> c, Object... args) {
    try {
      if (args.length == 0)
        return nuObjectWithoutArguments(c);
      Constructor m = nuObject_findConstructor(c, args);
      m.setAccessible(true);
      return (A) m.newInstance(args);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

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

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

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

  public static void messageBox(final String msg) {
    if (headless())
      print(msg);
    else {
      swing(new Runnable() {

        public void run() {
          try {
            JOptionPane.showMessageDialog(null, msg, "JavaX", JOptionPane.INFORMATION_MESSAGE);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "JOptionPane.showMessageDialog(null, msg, \"JavaX\", JOptionPane.INFORMATION_MES...";
        }
      });
    }
  }

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

  public static Runnable _topLevelErrorHandling(final Runnable runnable) {
    final Object info = _threadInfo();
    return new Runnable() {

      public void run() {
        try {
          try {
            _threadInheritInfo(info);
            runnable.run();
          } catch (Throwable __e) {
            _handleException(__e);
          }
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "pcall {\r\n      _threadInheritInfo(info);\r\n      runnable.run();\r\n    }";
      }
    };
  }

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

  public static <A> void scanForComponents(final Component c, final Class<A> theClass, final List<A> l) {
    if (theClass.isInstance(c))
      l.add((A) c);
    if (c instanceof Container) {
      swing(new Runnable() {

        public void run() {
          try {
            for (Component comp : ((Container) c).getComponents()) scanForComponents(comp, theClass, l);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "for (Component comp : ((Container) c).getComponents())\r\n      scanForComponen...";
        }
      });
    }
  }

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

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

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

  public static boolean setText_opt = true;

  public static <A extends JTextComponent> A setText(A c, Object text) {
    setText((Object) c, text);
    return c;
  }

  public static <A extends JComboBox> A setText(final A c, Object text) {
    final String s = strUnnull(text);
    {
      swing(new Runnable() {

        public void run() {
          try {
            c.getEditor().setItem(s);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "c.getEditor().setItem(s);";
        }
      });
    }
    return c;
  }

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

  public static JButton setText(JButton c, Object text) {
    setText((Object) c, jlabel_textAsHTML_center_ifNeeded(strUnnull(text)));
    return c;
  }

  public static <A> A setText(final A c, Object text) {
    if (c == null)
      return null;
    final String s = strUnnull(text);
    {
      swing(new Runnable() {

        public void run() {
          try {
            if (!setText_opt || neq(callOpt(c, "getText"), s))
              call(c, "setText", s);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "if (!setText_opt || neq(callOpt(c, \"getText\"), s))\r\n      call(c, \"setText\", s);";
        }
      });
    }
    return c;
  }

  public static void setCaretPosition(final JTextComponent c, final int pos) {
    if (c != null) {
      swing(new Runnable() {

        public void run() {
          try {
            try {
              int _pos = max(0, min(l(c.getText()), pos));
              c.setCaretPosition(_pos);
            } catch (Throwable __e) {
              _handleException(__e);
            }
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "pcall {\r\n      int _pos = max(0, min(l(c.getText()), pos));\r\n      c.setCaret...";
        }
      });
    }
  }

  public static ChangeListener changeListener(final Object r) {
    return new ChangeListener() {

      public void stateChanged(ChangeEvent e) {
        pcallF(r);
      }
    };
  }

  public static ItemListener itemListener(final Object r) {
    return new ItemListener() {

      public void itemStateChanged(ItemEvent e) {
        pcallF(r);
      }
    };
  }

  public static void onUpdate(JComponent c, final Object r) {
    if (c instanceof JTextComponent)
      ((JTextComponent) c).getDocument().addDocumentListener(new DocumentListener() {

        public void insertUpdate(DocumentEvent e) {
          call(r);
        }

        public void removeUpdate(DocumentEvent e) {
          call(r);
        }

        public void changedUpdate(DocumentEvent e) {
          call(r);
        }
      });
    else if (c instanceof ItemSelectable)
      ((ItemSelectable) c).addItemListener(new ItemListener() {

        public void itemStateChanged(ItemEvent e) {
          call(r);
        }
      });
    else
      print("Warning: onUpdate doesn't know " + getClassName(c));
  }

  public static void onUpdate(List<? extends JComponent> l, Object r) {
    for (JComponent c : l) onUpdate(c, r);
  }

  public static 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 "ret cb.isEditable();";
      }
    });
  }

  public static JTextField textFieldFromComboBox(JComboBox cb) {
    return (JTextField) cb.getEditor().getEditorComponent();
  }

  public static JComboBox onSelectedItem(final JComboBox cb, final VF1<String> f) {
    addActionListener(cb, new Runnable() {

      public void run() {
        try {
          pcallF(f, selectedItem(cb));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "pcallF(f, selectedItem(cb))";
      }
    });
    return cb;
  }

  public static void enableWordWrapForTextArea(final JTextArea ta) {
    if (ta != null) {
      swing(new Runnable() {

        public void run() {
          try {
            ta.setLineWrap(true);
            ta.setWrapStyleWord(true);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "ta.setLineWrap(true);\r\n    ta.setWrapStyleWord(true);";
        }
      });
    }
  }

  public static JTextArea jtextarea() {
    return jTextArea();
  }

  public static JTextArea jtextarea(String text) {
    return jTextArea(text);
  }

  public static <A extends JComponent> A setFont(final Font font, final A a) {
    if (a != null) {
      swing(new Runnable() {

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

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

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

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

  public static JTextArea jTextArea() {
    return jTextArea("");
  }

  public static JTextArea jTextArea(final String text) {
    return swingNu(JTextArea.class, text);
  }

  public static Font typeWriterFont() {
    return typeWriterFont(iround(14 * getSwingFontScale()));
  }

  public static Font typeWriterFont(int size) {
    return new Font("Courier", Font.PLAIN, size);
  }

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

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

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

  public static boolean containsSpaces(String s) {
    return indexOf(s, ' ') >= 0;
  }

  public static <A> A getOrKeep(Map<A, ? extends A> map, A a) {
    A v = map.get(a);
    return v != null ? v : a;
  }

  public static List<String> ai_splitCamelCase(String s) {
    int j = 0;
    List<String> l = new ArrayList();
    for (int i = 0; i < l(s); i++) if (isUpperCaseLetter(s.charAt(i)) && i > j) {
      l.add(substring(s, j, i));
      j = i;
    }
    if (j < l(s))
      l.add(substring(s, j));
    return l;
  }

  public static void setChecked(final JCheckBox checkBox, final boolean b) {
    if (checkBox != null) {
      swing(new Runnable() {

        public void run() {
          try {
            if (isChecked(checkBox) != b)
              checkBox.setSelected(b);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "if (isChecked(checkBox) != b)\r\n      checkBox.setSelected(b);";
        }
      });
    }
  }

  public static boolean isChecked(final 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 "ret checkBox.isSelected();";
      }
    });
  }

  public static boolean isChecked(final 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 "ret mi.isSelected();";
      }
    });
  }

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

  public static int indexOfIgnoreCase_manual(String a, String b) {
    int la = l(a), lb = l(b);
    if (la < lb)
      return -1;
    int n = la - lb;
    loop: for (int i = 0; i <= n; i++) {
      for (int j = 0; j < lb; j++) {
        char c1 = a.charAt(i + j), c2 = b.charAt(j);
        if (!eqic(c1, c2))
          continue loop;
      }
      return i;
    }
    return -1;
  }

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

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

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

  public static PersistableThrowable persistableThrowable(Throwable e) {
    return e == null ? null : new PersistableThrowable(e);
  }

  public static Throwable innerException(Throwable e) {
    return getInnerException(e);
  }

  public static <A> A last(List<A> l) {
    return empty(l) ? null : l.get(l.size() - 1);
  }

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

  public static int last(int[] a) {
    return l(a) != 0 ? a[l(a) - 1] : 0;
  }

  public static <A> A last(A[] a) {
    return l(a) != 0 ? a[l(a) - 1] : null;
  }

  public static <A> A last(Iterator<A> it) {
    A a = null;
    while (it.hasNext()) {
      ping();
      a = it.next();
    }
    return a;
  }

  public static Object unstructure(String text) {
    return unstructure(text, false);
  }

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

  public static int structure_internStringsLongerThan = 50;

  public static int unstructure_unquoteBufSize = 100;

  public static int unstructure_tokrefs;

  public abstract static class unstructure_Receiver {

    public abstract void set(Object o);
  }

  public static Object unstructure(String text, boolean allDynamic, Object classFinder) {
    if (text == null)
      return null;
    return unstructure_tok(javaTokC_noMLS_iterator(text), allDynamic, classFinder);
  }

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

  public static Object unstructure_tok(final Producer<String> tok, final boolean allDynamic, final Object _classFinder) {
    final boolean debug = unstructure_debug;
    final class X {

      public int i = -1;

      public final Object classFinder = _classFinder != null ? _classFinder : _defaultClassFinder();

      public HashMap<Integer, Object> refs = new HashMap();

      public HashMap<Integer, Object> tokrefs = new HashMap();

      public HashSet<String> concepts = new HashSet();

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

      public List<Runnable> stack = new ArrayList();

      public String curT;

      public char[] unquoteBuf = new char[unstructure_unquoteBufSize];

      public String unquote(String s) {
        return unquoteUsingCharArray(s, unquoteBuf);
      }

      public String t() {
        return curT;
      }

      public String tpp() {
        String t = curT;
        consume();
        return t;
      }

      public void parse(final unstructure_Receiver out) {
        String t = t();
        int refID = 0;
        if (structure_isMarker(t, 0, l(t))) {
          refID = parseInt(t.substring(1));
          consume();
        }
        final int _refID = refID;
        final int tokIndex = i;
        parse_inner(refID, tokIndex, new unstructure_Receiver() {

          public void set(Object o) {
            if (_refID != 0)
              refs.put(_refID, o);
            if (o != null)
              tokrefs.put(tokIndex, o);
            out.set(o);
          }
        });
      }

      public void parse_inner(int refID, int tokIndex, final unstructure_Receiver out) {
        String t = t();
        Class c = classesMap.get(t);
        if (c == null) {
          if (t.startsWith("\"")) {
            String s = internIfLongerThan(unquote(tpp()), structure_internStringsLongerThan);
            out.set(s);
            return;
          }
          if (t.startsWith("'")) {
            out.set(unquoteCharacter(tpp()));
            return;
          }
          if (t.equals("bigint")) {
            out.set(parseBigInt());
            return;
          }
          if (t.equals("d")) {
            out.set(parseDouble());
            return;
          }
          if (t.equals("fl")) {
            out.set(parseFloat());
            return;
          }
          if (t.equals("sh")) {
            consume();
            t = tpp();
            if (t.equals("-")) {
              t = tpp();
              out.set((short) (-parseInt(t)));
              return;
            }
            out.set((short) parseInt(t));
            return;
          }
          if (t.equals("-")) {
            consume();
            t = tpp();
            out.set(isLongConstant(t) ? (Object) (-parseLong(t)) : (Object) (-parseInt(t)));
            return;
          }
          if (isInteger(t) || isLongConstant(t)) {
            consume();
            if (isLongConstant(t)) {
              out.set(parseLong(t));
              return;
            }
            long l = parseLong(t);
            boolean isInt = l == (int) l;
            out.set(isInt ? (Object) Integer.valueOf((int) l) : (Object) Long.valueOf(l));
            return;
          }
          if (t.equals("false") || t.equals("f")) {
            consume();
            out.set(false);
            return;
          }
          if (t.equals("true") || t.equals("t")) {
            consume();
            out.set(true);
            return;
          }
          if (t.equals("-")) {
            consume();
            t = tpp();
            out.set(isLongConstant(t) ? (Object) (-parseLong(t)) : (Object) (-parseInt(t)));
            return;
          }
          if (isInteger(t) || isLongConstant(t)) {
            consume();
            if (isLongConstant(t)) {
              out.set(parseLong(t));
              return;
            }
            long l = parseLong(t);
            boolean isInt = l == (int) l;
            out.set(isInt ? (Object) Integer.valueOf((int) l) : (Object) Long.valueOf(l));
            return;
          }
          if (t.equals("File")) {
            consume();
            File f = new File(unquote(tpp()));
            out.set(f);
            return;
          }
          if (t.startsWith("r") && isInteger(t.substring(1))) {
            consume();
            int ref = Integer.parseInt(t.substring(1));
            Object o = refs.get(ref);
            if (o == null)
              print("Warning: unsatisfied back reference " + ref);
            out.set(o);
            return;
          }
          if (t.startsWith("t") && isInteger(t.substring(1))) {
            consume();
            int ref = Integer.parseInt(t.substring(1));
            Object o = tokrefs.get(ref);
            if (o == null)
              print("Warning: unsatisfied token reference " + ref);
            out.set(o);
            return;
          }
          if (t.equals("hashset")) {
            parseHashSet(out);
            return;
          }
          if (t.equals("lhs")) {
            parseLinkedHashSet(out);
            return;
          }
          if (t.equals("treeset")) {
            parseTreeSet(out);
            return;
          }
          if (eqOneOf(t, "hashmap", "hm")) {
            consume();
            parseMap(new HashMap(), out);
            return;
          }
          if (t.equals("lhm")) {
            consume();
            parseMap(new LinkedHashMap(), out);
            return;
          }
          if (t.equals("sync")) {
            consume();
            if (t().equals("tm")) {
              consume();
              {
                parseMap(synchronizedTreeMap(), out);
                return;
              }
            }
            if (t().equals("[")) {
              parseList(synchroList(), out);
              return;
            }
            {
              parseMap(synchronizedMap(), out);
              return;
            }
          }
          if (t.equals("{")) {
            parseMap(out);
            return;
          }
          if (t.equals("[")) {
            this.parseList(new ArrayList(), out);
            return;
          }
          if (t.equals("bitset")) {
            parseBitSet(out);
            return;
          }
          if (t.equals("array") || t.equals("intarray")) {
            parseArray(out);
            return;
          }
          if (t.equals("ba")) {
            consume();
            String hex = unquote(tpp());
            out.set(hexToBytes(hex));
            return;
          }
          if (t.equals("boolarray")) {
            consume();
            int n = parseInt(tpp());
            String hex = unquote(tpp());
            out.set(boolArrayFromBytes(hexToBytes(hex), n));
            return;
          }
          if (t.equals("class")) {
            out.set(parseClass());
            return;
          }
          if (t.equals("l")) {
            parseLisp(out);
            return;
          }
          if (t.equals("null")) {
            consume();
            out.set(null);
            return;
          }
          if (eq(t, "c")) {
            consume("c");
            t = t();
            assertTrue(isJavaIdentifier(t));
            concepts.add(t);
          }
        }
        if (eq(t, "j")) {
          consume("j");
          out.set(parseJava());
          return;
        }
        if (c == null && !isJavaIdentifier(t))
          throw new RuntimeException("Unknown token " + (i + 1) + ": " + t);
        consume();
        String className, fullClassName;
        if (eq(t(), ".")) {
          consume();
          className = fullClassName = t + "." + assertIdentifier(tpp());
        } else {
          className = t;
          fullClassName = "main$" + t;
        }
        if (c == null) {
          if (allDynamic)
            c = null;
          else
            c = classFinder != null ? (Class) callF(classFinder, fullClassName) : findClass_fullName(fullClassName);
          if (c != null)
            classesMap.put(className, c);
        }
        boolean hasBracket = eq(t(), "(");
        if (hasBracket)
          consume();
        boolean hasOuter = hasBracket && eq(t(), "this$1");
        DynamicObject dO = null;
        Object o = null;
        final String thingName = t;
        if (c != null) {
          o = hasOuter ? nuStubInnerObject(c, classFinder) : nuEmptyObject(c);
          if (o instanceof DynamicObject)
            dO = (DynamicObject) o;
        } else {
          if (concepts.contains(t) && (c = findClass("Concept")) != null)
            o = dO = (DynamicObject) nuEmptyObject(c);
          else
            dO = new DynamicObject();
          dO.className = className;
        }
        if (refID != 0)
          refs.put(refID, o != null ? o : dO);
        tokrefs.put(tokIndex, o != null ? o : dO);
        final LinkedHashMap<String, Object> fields = new LinkedHashMap();
        final Object _o = o;
        final DynamicObject _dO = dO;
        if (hasBracket) {
          stack.add(new Runnable() {

            public void run() {
              try {
                if (eq(t(), ")")) {
                  consume(")");
                  objRead(_o, _dO, fields);
                  out.set(_o != null ? _o : _dO);
                } else {
                  final String key = unquote(tpp());
                  if (!eq(tpp(), "="))
                    throw fail("= expected, got " + t() + " after " + quote(key) + " in object " + thingName);
                  stack.add(this);
                  parse(new unstructure_Receiver() {

                    public void set(Object value) {
                      fields.put(key, value);
                      if (eq(t(), ","))
                        consume();
                    }
                  });
                }
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "if (eq(t(), \")\")) {\r\n            consume(\")\");\r\n            objRead(_o, _dO, ...";
            }
          });
        } else {
          objRead(o, dO, fields);
          out.set(o != null ? o : dO);
        }
      }

      public void objRead(Object o, DynamicObject dO, Map<String, Object> fields) {
        if (o != null)
          if (dO != null) {
            setOptAllDyn(dO, fields);
          } else {
            setOptAll_pcall(o, fields);
          }
        else
          for (String field : keys(fields)) dO.fieldValues.put(intern(field), fields.get(field));
        if (o != null)
          pcallOpt_noArgs(o, "_doneLoading");
      }

      public void parseSet(final Set set, final unstructure_Receiver out) {
        this.parseList(new ArrayList(), new unstructure_Receiver() {

          public void set(Object o) {
            set.addAll((List) o);
            out.set(set);
          }
        });
      }

      public void parseLisp(final unstructure_Receiver out) {
        throw fail("class Lisp not included");
      }

      public void parseBitSet(final unstructure_Receiver out) {
        consume("bitset");
        consume("{");
        final BitSet bs = new BitSet();
        stack.add(new Runnable() {

          public void run() {
            try {
              if (eq(t(), "}")) {
                consume("}");
                out.set(bs);
              } else {
                stack.add(this);
                parse(new unstructure_Receiver() {

                  public void set(Object o) {
                    bs.set((Integer) o);
                    if (eq(t(), ","))
                      consume();
                  }
                });
              }
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "if (eq(t(), \"}\")) {\r\n          consume(\"}\");\r\n          out.set(bs);\r\n       ...";
          }
        });
      }

      public void parseList(final List list, final unstructure_Receiver out) {
        consume("[");
        stack.add(new Runnable() {

          public void run() {
            try {
              if (eq(t(), "]")) {
                consume("]");
                out.set(list);
              } else {
                stack.add(this);
                parse(new unstructure_Receiver() {

                  public void set(Object o) {
                    list.add(o);
                    if (eq(t(), ","))
                      consume();
                  }
                });
              }
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "if (eq(t(), \"]\")) {\r\n          consume(\"]\");\r\n          out.set(list);\r\n     ...";
          }
        });
      }

      public void parseArray(final unstructure_Receiver out) {
        final String type = tpp();
        consume("{");
        final List list = new ArrayList();
        stack.add(new Runnable() {

          public void run() {
            try {
              if (eq(t(), "}")) {
                consume("}");
                out.set(type.equals("intarray") ? toIntArray(list) : list.toArray());
              } else {
                stack.add(this);
                parse(new unstructure_Receiver() {

                  public void set(Object o) {
                    list.add(o);
                    if (eq(t(), ","))
                      consume();
                  }
                });
              }
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "if (eq(t(), \"}\")) {\r\n          consume(\"}\");\r\n          out.set(type.equals(\"...";
          }
        });
      }

      public Object parseClass() {
        consume("class");
        consume("(");
        String name = unquote(tpp());
        consume(")");
        Class c = allDynamic ? null : classFinder != null ? (Class) callF(classFinder, name) : findClass_fullName(name);
        if (c != null)
          return c;
        DynamicObject dO = new DynamicObject();
        dO.className = "java.lang.Class";
        name = dropPrefix("main$", name);
        dO.fieldValues.put("name", name);
        return dO;
      }

      public Object parseBigInt() {
        consume("bigint");
        consume("(");
        String val = tpp();
        if (eq(val, "-"))
          val = "-" + tpp();
        consume(")");
        return new BigInteger(val);
      }

      public Object parseDouble() {
        consume("d");
        consume("(");
        String val = unquote(tpp());
        consume(")");
        return Double.parseDouble(val);
      }

      public Object parseFloat() {
        consume("fl");
        String val;
        if (eq(t(), "(")) {
          consume("(");
          val = unquote(tpp());
          consume(")");
        } else {
          val = unquote(tpp());
        }
        return Float.parseFloat(val);
      }

      public void parseHashSet(unstructure_Receiver out) {
        consume("hashset");
        parseSet(new HashSet(), out);
      }

      public void parseLinkedHashSet(unstructure_Receiver out) {
        consume("lhs");
        parseSet(new LinkedHashSet(), out);
      }

      public void parseTreeSet(unstructure_Receiver out) {
        consume("treeset");
        parseSet(new TreeSet(), out);
      }

      public void parseMap(unstructure_Receiver out) {
        parseMap(new TreeMap(), out);
      }

      public Object parseJava() {
        String j = unquote(tpp());
        Matches m = new Matches();
        if (jmatch("java.awt.Color[r=*,g=*,b=*]", j, m))
          return nuObject("java.awt.Color", parseInt(m.unq(0)), parseInt(m.unq(1)), parseInt(m.unq(2)));
        else {
          warn("Unknown Java object: " + j);
          return null;
        }
      }

      public void parseMap(final Map map, final unstructure_Receiver out) {
        consume("{");
        stack.add(new Runnable() {

          public boolean v;

          public Object key;

          public void run() {
            if (v) {
              v = false;
              stack.add(this);
              if (!eq(tpp(), "="))
                throw fail("= expected, got " + t() + " in map of size " + l(map));
              parse(new unstructure_Receiver() {

                public void set(Object value) {
                  map.put(key, value);
                  if (eq(t(), ","))
                    consume();
                }
              });
            } else {
              if (eq(t(), "}")) {
                consume("}");
                out.set(map);
              } else {
                v = true;
                stack.add(this);
                parse(new unstructure_Receiver() {

                  public void set(Object o) {
                    key = o;
                  }
                });
              }
            }
          }
        });
      }

      public void consume() {
        curT = tok.next();
        ++i;
      }

      public void consume(String s) {
        if (!eq(t(), s)) {
          throw fail(quote(s) + " expected, got " + quote(t()));
        }
        consume();
      }

      public void parse_x(unstructure_Receiver out) {
        consume();
        parse(out);
        while (nempty(stack)) popLast(stack).run();
      }
    }
    Boolean b = DynamicObject_loading.get();
    DynamicObject_loading.set(true);
    try {
      final Var v = new Var();
      X x = new X();
      x.parse_x(new unstructure_Receiver() {

        public void set(Object o) {
          v.set(o);
        }
      });
      unstructure_tokrefs = x.tokrefs.size();
      return v.get();
    } finally {
      DynamicObject_loading.set(b);
    }
  }

  public static boolean unstructure_debug;

  public static int jfind(String s, String in) {
    return jfind(javaTok(s), in);
  }

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

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

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

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

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

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

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

  public static List<String> jfind_preprocess(List<String> tok) {
    for (String type : litlist("quoted", "id", "int")) replaceSublist(tok, ll("<", "", type, "", ">"), ll("<" + type + ">"));
    replaceSublist(tok, ll("\\", "", "*"), ll("\\*"));
    return tok;
  }

  public static <A, B, C> T3<A, B, C> t3(A a, B b, C c) {
    return new T3(a, b, c);
  }

  public static String javaTok_substringN(String s, int i, int j) {
    if (i == j)
      return "";
    if (j == i + 1 && s.charAt(i) == ' ')
      return " ";
    return s.substring(i, j);
  }

  public static String javaTok_substringC(String s, int i, int j) {
    return s.substring(i, j);
  }

  public static List<String> javaTokWithExisting(String s, List<String> existing) {
    ++javaTok_n;
    int nExisting = javaTok_opt && existing != null ? existing.size() : 0;
    ArrayList<String> tok = existing != null ? new ArrayList(nExisting) : new ArrayList();
    int l = s.length();
    int i = 0, n = 0;
    while (i < l) {
      int j = i;
      char c, d;
      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;
  }

  public static boolean javaTokWithExisting_isCopyable(String t, String s, int i, int j) {
    return t.length() == j - i && s.regionMatches(i, t, 0, j - i);
  }

  public static String[] match2(List<String> pat, List<String> tok) {
    int i = pat.indexOf("...");
    if (i < 0)
      return match2_match(pat, tok);
    pat = new ArrayList<String>(pat);
    pat.set(i, "*");
    while (pat.size() < tok.size()) {
      pat.add(i, "*");
      pat.add(i + 1, "");
    }
    return match2_match(pat, tok);
  }

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

  public static boolean isJavaIdentifierAfter(String s, int i) {
    int n = l(s);
    if (i >= n || !Character.isJavaIdentifierStart(s.charAt(i)))
      return false;
    for (i++; i < n; i++) if (!Character.isJavaIdentifierPart(s.charAt(i)))
      return false;
    return true;
  }

  public static char lastChar(String s) {
    return empty(s) ? '\0' : s.charAt(l(s) - 1);
  }

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

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

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

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

  public static String dropLast(String s) {
    return substring(s, 0, l(s) - 1);
  }

  public static String dropLast(String s, int n) {
    return substring(s, 0, l(s) - n);
  }

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

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

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

  public static <A> List<A> subList(List<A> l, IntRange r) {
    return subList(l, r.start, r.end);
  }

  public static Matcher regexp(String pat, String s) {
    return Pattern.compile(pat).matcher(s);
  }

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

  public static String trimSubstring(String s, int x, int y) {
    return trim(substring(s, x, y));
  }

  public static String trimSubstring(String s, IntRange r) {
    return trim(substring(s, r));
  }

  public static boolean cicOneOf(String s, String... l) {
    for (String x : l) if (cic(s, x))
      return true;
    return false;
  }

  public static boolean cicOneOf(Collection<String> l, String... bla) {
    for (String x : unnull(l)) if (eqicOneOf(x, bla))
      return true;
    return false;
  }

  public static List<Integer> indicesOfAnyIC(List<String> l, String... bla) {
    List<Integer> x = new ArrayList();
    for (int i = 0; i < l(l); i++) if (eqicOneOf(l.get(i), bla))
      x.add(i);
    return x;
  }

  public static <A> IterableIterator<List<A>> allCombinations(final List<List<A>> base) {
    return iteratorFromFunction(new F0<List<A>>() {

      public final int n = l(base);

      public List<Integer> l = rep((Integer) 0, n);

      public List<A> get() {
        if (l == null)
          return null;
        List<A> out = makeList();
        int i = 0;
        while (i < n) {
          int n = l.get(i);
          if (n + 1 < l(base.get(i))) {
            l.set(i, n + 1);
            break;
          }
          l.set(i++, 0);
        }
        if (i >= n)
          l = null;
        return out;
      }

      public List<A> makeList() {
        List<A> list = emptyList(n);
        for (int i = 0; i < n; i++) list.add(base.get(i).get(l.get(i)));
        return list;
      }
    });
  }

  public static String rep(int n, char c) {
    return repeat(c, n);
  }

  public static String rep(char c, int n) {
    return repeat(c, n);
  }

  public static <A> List<A> rep(A a, int n) {
    return repeat(a, n);
  }

  public static <A> List<A> rep(int n, A a) {
    return repeat(n, a);
  }

  public static <A> void addIfNotNull(Collection<A> l, A a) {
    if (a != null && l != null)
      l.add(a);
  }

  public static List<String> javaTokPlusBrackets2(String s) {
    return tok_combineRoundCurlySquareBrackets_keep(javaTok(s));
  }

  public static boolean isSquareBracketed(String s) {
    return s != null && s.startsWith("[") && s.endsWith("]");
  }

  public static String deSquareBracket(String s) {
    if (startsWith(s, "[") && endsWith(s, "]"))
      return substring(s, 1, l(s) - 1);
    return s;
  }

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

  public static List<String> tok_splitAtComma(List<String> tok) {
    List<String> out = new ArrayList();
    for (int i = 0; i < l(tok); i++) {
      int j = smartIndexOf(tok, ",", i);
      out.add(joinSubList(tok, i + 1, j - 1));
      i = j;
    }
    return out;
  }

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

  public static <A> Set<A> linkedHashSet_addWithAutoInit(Set<A> set, A a) {
    if (set == null)
      set = new LinkedHashSet();
    set.add(a);
    return set;
  }

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

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

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

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

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

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

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

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

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

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

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

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

  public static Exp nlLogic_parseExpression(String s) {
    if (s == null)
      return null;
    List<String> tok = javaTokPlusAllThreeBrackets(s);
    Pair<String, String> p = splitAtTokens_once(tok, ll("&", "", "&"));
    if (p != null)
      return new And(nlLogic_parseExpression(first(p)), nlLogic_parseExpression(second(p)));
    if (eqGet(tok, 1, "!"))
      return new ExpNot(nlLogic_parseExpression(join(dropFirst(2, tok))));
    if (l(tok) == 7 && isIdentifier(tok.get(1)) && isSquareBracketed(tok.get(3)) && isRoundBracketed(tok.get(5)))
      return new Func(tok.get(1), tok_splitAtComma(deSquareBracket(tok.get(3))), nlLogic_parseExpression(deRoundBracket(tok.get(5))));
    if (l(tok) == 5 && isIdentifier(tok.get(1)) && isRoundBracketed(tok.get(3))) {
      String name = tok.get(1), arg = deRoundBracket(tok.get(3));
      boolean parseInnerPart = false;
      return new Func(name, parseInnerPart ? nlLogic_parseExpression(arg) : new Sentence2(unquoteIfNormalQuoted(arg)));
    }
    List<String> l = splitAtTokens(tok, ll("="));
    if (l(l) == 2)
      return new Eq(nlLogic_parseExpression(first(l)), nlLogic_parseExpression(second(l)));
    return new Sentence2(l(tok) == 3 && isQuoted(tok.get(1)) ? unquote(second(tok)) : join(tok));
  }

  public static <A> A nextToLast(List<A> l) {
    return get(l, l(l) - 2);
  }

  public static String textMD5ToGlobalID(String s) {
    return md5ToGlobalID(md5(s));
  }

  public static boolean emptyAfterTrim(String s) {
    return empty(trim(s));
  }

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

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

  public static CloseableIterableIterator emptyCloseableIterableIterator_instance = new CloseableIterableIterator() {

    public Object next() {
      throw fail();
    }

    public boolean hasNext() {
      return false;
    }
  };

  public static <A> CloseableIterableIterator<A> emptyCloseableIterableIterator() {
    return emptyCloseableIterableIterator_instance;
  }

  public static CloseableIterableIterator<String> linesFromReader(Reader r) {
    final BufferedReader br = bufferedReader(r);
    return iteratorFromFunction_f0_autoCloseable(new F0<String>() {

      public String get() {
        try {
          return readLineFromReaderWithClose(br);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "ret readLineFromReaderWithClose(br);";
      }
    }, _wrapIOCloseable(r));
  }

  public static BufferedReader utf8bufferedReader(InputStream in) {
    try {
      return bufferedReader(_registerIOWrap(new InputStreamReader(in, "UTF-8"), in));
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  public static GZIPInputStream newGZIPInputStream(File f) {
    return gzInputStream(f);
  }

  public static GZIPInputStream newGZIPInputStream(InputStream in) {
    return gzInputStream(in);
  }

  public static List<String> mechList_opt(String name) {
    return mechList_opt_tlft(name);
  }

  public static ExpiringMap2<String, String> mechList_raw_cache = new ExpiringMap2(10000).setMap(ciMap());

  public static Lock mechList_raw_lock = lock();

  public static int mechList_raw_timeout = 60000;

  public static String mechList_raw(String name) {
    try {
      Lock __607 = mechList_raw_lock;
      lock(__607);
      try {
        if (empty(name))
          return "";
        String src = mechList_raw_cache.get(name);
        if (src != null)
          return src;
        AutoCloseable __609 = tempSetThreadLocal(loadPage_forcedTimeout_byThread, mechList_raw_timeout);
        try {
          src = mechList_raw_fresh(name);
          if (src != null)
            mechList_raw_cache.put(name, src);
          return src;
        } finally {
          _close(__609);
        }
      } finally {
        unlock(__607);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static VF2<String, Object> mechList_raw_listener = new VF2<String, Object>() {

    public void get(String msg, Object arg) {
      try {
        if (eq(msg, "mechChange") && arg instanceof String) {
          mechList_raw_cache.remove((String) arg);
        }
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }

    public String toString() {
      return "if (eq(msg, 'mechChange) && arg instanceof S) {\r\n    //print(\"Got change noti...";
    }
  };

  public static void _onLoad_mechList_raw() {
    add(vm_busListeners_live(), mechList_raw_listener);
  }

  public static void cleanMeUp_mechList_raw() {
    remove(vm_busListeners_live(), mechList_raw_listener);
  }

  public static boolean noJavaTokens(String s) {
    return numberOfJavaTokens(s) == 0;
  }

  public static <A> List<A> sortByCalculatedField(Iterable<A> c, final Object f) {
    List<A> l = cloneList(c);
    sort(l, new Comparator<A>() {

      public int compare(A a, A b) {
        return stdcompare(callF(f, a), callF(f, b));
      }
    });
    return l;
  }

  public static void nlLogic_setScriptID(List<IfThen> rules, final String scriptID) {
    final Set<String> ids = collectAsHashSet(rules, "globalID");
    for (IfThen rule : rules) {
      rule.globalID = scriptID + rule.globalID;
      mapIntoSameCollection(rule.options, new F1<String, String>() {

        public String get(String s) {
          try {
            Matches m = new Matches();
            for (String pat : splitAtVerticalBar("trumps *|conflicts with")) if (match(pat, s, m))
              return format(pat, scriptID + m.unq(0));
            return s;
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "new Matches m;\r\n      for (S pat : splitAtVerticalBar(\"trumps *|conflicts wit...";
        }
      });
      nlLogic_visit(rule, new VF1<Object>() {

        public void get(Object o) {
          try {
            String name;
            if (o instanceof Func) {
              if (eq(((Func) o).name, "followingUpOn")) {
                List<String> tok = javaTok(nlLogic_text(((Func) o).arg));
                if (ids.contains(_get(tok, 1))) {
                  tok.set(1, scriptID + tok.get(1));
                  ((Func) o).arg = new Sentence2(join(tok));
                }
              }
            }
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "S name;\r\n      if (o cast Func) {\r\n        if (eq(o.name, 'followingUpOn)) {\r...";
        }
      });
    }
  }

  public static String reverseString(String s) {
    return new StringBuilder(s).reverse().toString();
  }

  public static <A, B> B mapGet(Map<A, B> map, A a) {
    return map == null || a == null ? null : map.get(a);
  }

  public static <A, B> B mapGet(A a, Map<A, B> map) {
    return map == null || a == null ? null : map.get(a);
  }

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

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

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

  public static Set<String> nlLogic_allLHSEvalFragments(IfThen rule) {
    return nlLogic_allLHSEvalFragments_visit(rule);
  }

  public static Set<String> nlLogic_allLHSEvalFragments(List<IfThen> rules) {
    return nlLogic_allLHSEvalFragments_visit(collect(rules, "in"));
  }

  public static Set<String> nlLogic_allLHSEvalFragments_visit(Object toVisit) {
    final TreeSet<String> set = new TreeSet();
    nlLogic_visit(toVisit, new VF1<Object>() {

      public void get(Object o) {
        try {
          if (o instanceof Func)
            if (eq(((Func) o).name, "eval"))
              set.add(((Func) o).arg.text());
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "if (o cast Func) if (eq(o.name, 'eval)) set.add(o.arg.text());";
      }
    });
    return set;
  }

  public static boolean isSafeCodeFragment(String code) {
    return eq("safe", joinWithComma(getCodeFragmentSafety(code)));
  }

  public static String formatWithThousandsSeparator(long l) {
    return NumberFormat.getInstance(new Locale("en_US")).format(l);
  }

  public static List<IfThen> ai_mL_parsedLogicExamples2() {
    return map_pcall("nlLogic_parseRule", ai_unparsedTalkRules());
  }

  public static <A> A printStruct(String prefix, A a) {
    printStructure(prefix, a);
    return a;
  }

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

  public static List<Exp> nlLogic_unrollAnd(Exp e) {
    List<Exp> l = new ArrayList();
    nlLogic_unrollAnd_collect(e, l);
    return l;
  }

  public static void nlLogic_unrollAnd_collect(Exp e, List<Exp> out) {
    if (e instanceof And) {
      nlLogic_unrollAnd_collect(((And) e).a, out);
      nlLogic_unrollAnd_collect(((And) e).b, out);
    } else
      addIfNotNull(out, e);
  }

  public static Exp nlLogic_applyMatches(Exp e, Map<String, String> m) {
    if (e == null)
      return null;
    if (e instanceof And)
      return new And(nlLogic_applyMatches(((And) e).a, m), nlLogic_applyMatches(((And) e).b, m));
    if (e instanceof ExpNot)
      return new ExpNot(nlLogic_applyMatches(((ExpNot) e).a, m));
    if (e instanceof Func)
      return new Func(((Func) e).name, nlLogic_applyMatches(((Func) e).arg, m));
    if (e instanceof Sentence)
      return new Sentence(javaTok(ai_standardReplaceVars(((Sentence) e).text(), m)));
    if (e instanceof Sentence2)
      return new Sentence2(ai_standardReplaceVars(((Sentence2) e).text(), m));
    return e;
  }

  public static boolean nlLogic_checkHelper(Exp e, Map<String, String> matches) {
    if (e instanceof Func) {
      String arg = ((Func) e).arg.text();
      if (eq(((Func) e).name, "newID") && isDollarVar(arg))
        return ai_standardMatcher().match(arg, aGlobalID(), matches);
    }
    return false;
  }

  public static <A> HashSet<A> lithashset(A... items) {
    HashSet<A> set = new HashSet();
    for (A a : items) set.add(a);
    return set;
  }

  public static String nlLogic_text(Exp e) {
    return e == null ? null : e.text();
  }

  public static String nlLogic_text(IfThen r) {
    return r == null ? null : r.text();
  }

  public static String getStackTrace2(Throwable e) {
    return hideCredentials(getStackTrace(unwrapTrivialExceptionWraps(e)) + replacePrefix("java.lang.RuntimeException: ", "FAIL: ", hideCredentials(str(innerException2(e)))) + "\n");
  }

  public static String shortenSnippetID(String snippetID) {
    if (snippetID.startsWith("#"))
      snippetID = snippetID.substring(1);
    String httpBlaBla = "http://tinybrain.de/";
    if (snippetID.startsWith(httpBlaBla))
      snippetID = snippetID.substring(httpBlaBla.length());
    return "" + parseLong(snippetID);
  }

  public static volatile boolean licensed_yes = true;

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

  public static void licensed_off() {
    licensed_yes = false;
  }

  public static Object collectionMutex(Object o) {
    String c = className(o);
    if (eq(c, "java.util.TreeMap$KeySet"))
      c = className(o = getOpt(o, "m"));
    else if (eq(c, "java.util.HashMap$KeySet"))
      c = className(o = get_raw(o, "this$0"));
    if (eqOneOf(c, "java.util.TreeMap$AscendingSubMap", "java.util.TreeMap$DescendingSubMap"))
      c = className(o = get_raw(o, "m"));
    return o;
  }

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

  public static Map<String, Object> objectToMap(Object o) {
    try {
      if (o instanceof Map)
        return (Map) o;
      TreeMap<String, Object> map = new TreeMap();
      Class c = o.getClass();
      while (c != Object.class) {
        Field[] fields = c.getDeclaredFields();
        for (final Field field : fields) {
          if ((field.getModifiers() & Modifier.STATIC) != 0)
            continue;
          field.setAccessible(true);
          final Object value = field.get(o);
          if (value != null)
            map.put(field.getName(), value);
        }
        c = c.getSuperclass();
      }
      if (o instanceof DynamicObject)
        map.putAll(((DynamicObject) o).fieldValues);
      return map;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static List<Map<String, Object>> objectToMap(Iterable l) {
    if (l == null)
      return null;
    List x = new ArrayList();
    for (Object o : l) x.add(objectToMap(o));
    return x;
  }

  public static String[] asStringArray(Collection<String> c) {
    return toStringArray(c);
  }

  public static String[] asStringArray(Object o) {
    return toStringArray(o);
  }

  public static <A> A callCreator(String functionName, Object... args) {
    return (A) call(creator(), functionName, args);
  }

  public static Runnable asRunnable(Object o) {
    return toRunnable(o);
  }

  public static void _inheritThreadInfo(Object info) {
    _threadInheritInfo(info);
  }

  public static String[] toStringArray(Collection<String> c) {
    String[] a = new String[l(c)];
    Iterator<String> it = c.iterator();
    for (int i = 0; i < l(a); i++) a[i] = it.next();
    return a;
  }

  public static String[] toStringArray(Object o) {
    if (o instanceof String[])
      return (String[]) o;
    else if (o instanceof Collection)
      return toStringArray((Collection<String>) o);
    else
      throw fail("Not a collection or array: " + getClassName(o));
  }

  public static Map<String, Class> classForName_cache = synchroHashMap();

  public static Class classForName(String name) {
    try {
      Class c = classForName_cache.get(name);
      if (c == null)
        classForName_cache.put(name, c = Class.forName(name));
      return c;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static Map<Class, Constructor> nuObjectWithoutArguments_cache = newDangerousWeakHashMap();

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

  public static <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);
    }
  }

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

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

  public static boolean isInstanceX(Class type, Object arg) {
    if (type == boolean.class)
      return arg instanceof Boolean;
    if (type == int.class)
      return arg instanceof Integer;
    if (type == long.class)
      return arg instanceof Long;
    if (type == float.class)
      return arg instanceof Float;
    if (type == short.class)
      return arg instanceof Short;
    if (type == char.class)
      return arg instanceof Character;
    if (type == byte.class)
      return arg instanceof Byte;
    if (type == double.class)
      return arg instanceof Double;
    return type.isInstance(arg);
  }

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

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

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

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

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

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

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

  public static <A> WeakReference<A> newWeakReference(A a) {
    return a == null ? null : new WeakReference(a);
  }

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

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

  public static String jlabel_textAsHTML_center_ifNeeded(String text) {
    if (swic(text, "<html>") && ewic(text, "</html>"))
      return text;
    if (!containsNewLines(text))
      return text;
    return jlabel_textAsHTML_center(text);
  }

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

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

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

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

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

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

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

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

  public static short min(short[] c) {
    short x = 0x7FFF;
    for (short d : c) if (d < x)
      x = d;
    return x;
  }

  public static int min(int[] c) {
    int x = Integer.MAX_VALUE;
    for (int d : c) if (d < x)
      x = d;
    return x;
  }

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

  public static void addActionListener(JTextField tf, final Runnable action) {
    onEnter(tf, action);
  }

  public static void addActionListener(final JComboBox cb, final Runnable action) {
    if (cb != null) {
      swing(new Runnable() {

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

        public String toString() {
          return "cb.addActionListener(actionListener(action));";
        }
      });
    }
  }

  public static void addActionListener(final AbstractButton b, final Runnable action) {
    if (b != null) {
      swing(new Runnable() {

        public void run() {
          try {
            b.addActionListener(actionListener(action));
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "b.addActionListener(actionListener(action));";
        }
      });
    }
  }

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

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

  public static Map<String, Font> loadFont_cached_cache = new HashMap();

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

  public static synchronized Font loadFont_cached(String snippetID, float size) {
    try {
      return loadFont_cached(snippetID).deriveFont(size);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static int iround(double d) {
    return (int) Math.round(d);
  }

  public static int iround(Number n) {
    return iround(toDouble(n));
  }

  public static float getSwingFontScale() {
    return or((Float) vm_generalMap_get("swingFontScale_value"), 1f);
  }

  public static volatile PersistableThrowable lastException_lastException;

  public static PersistableThrowable lastException() {
    return lastException_lastException;
  }

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

  public static boolean isUpperCaseLetter(char c) {
    return Character.isUpperCase(c);
  }

  public static Throwable getInnerException(Throwable e) {
    if (e == null)
      return null;
    while (e.getCause() != null) e = e.getCause();
    return e;
  }

  public static Throwable getInnerException(Runnable r) {
    return getInnerException(getException(r));
  }

  public static Producer<String> javaTokC_noMLS_iterator(final String s) {
    return javaTokC_noMLS_iterator(s, 0);
  }

  public static Producer<String> javaTokC_noMLS_iterator(final String s, final int startIndex) {
    return new Producer<String>() {

      public final int l = s.length();

      public int i = startIndex;

      public String next() {
        if (i >= l)
          return null;
        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)
          return null;
        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
          ++j;
        String t = quickSubstring(s, i, j);
        i = j;
        return t;
      }
    };
  }

  public static Producer<String> javaTokC_noMLS_onReader(final BufferedReader r) {
    final class X implements Producer<String> {

      public StringBuilder buf = new StringBuilder();

      public char c, d, e = 'x';

      public X() {
        nc();
        nc();
        nc();
      }

      public void nc() {
        try {
          c = d;
          d = e;
          if (e == '\0')
            return;
          int i = r.read();
          e = i < 0 ? '\0' : i == '\0' ? '_' : (char) i;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public void ncSave() {
        if (c != '\0') {
          buf.append(c);
          nc();
        }
      }

      public String next() {
        while (c != '\0') {
          if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
            nc();
          else if (c == '/' && d == '*') {
            do nc(); while (c != '\0' && !(c == '*' && d == '/'));
            nc();
            nc();
          } else if (c == '/' && d == '/') {
            do nc(); while (c != '\0' && "\r\n".indexOf(c) < 0);
          } else
            break;
        }
        if (c == '\0')
          return null;
        if (c == '\'' || c == '"') {
          char opener = c;
          ncSave();
          while (c != '\0') {
            if (c == opener || c == '\n') {
              ncSave();
              break;
            } else if (c == '\\') {
              ncSave();
              ncSave();
            } else
              ncSave();
          }
        } else if (Character.isJavaIdentifierStart(c))
          do ncSave(); while (Character.isJavaIdentifierPart(c) || c == '\'');
        else if (Character.isDigit(c)) {
          do ncSave(); while (Character.isDigit(c));
          if (c == 'L')
            ncSave();
        } else
          ncSave();
        String t = buf.toString();
        buf.setLength(0);
        return t;
      }
    }
    return new X();
  }

  public static String unquoteUsingCharArray(String s, char[] buf) {
    if (s == null)
      return null;
    if (startsWith(s, '[')) {
      int i = 1;
      while (i < s.length() && s.charAt(i) == '=') ++i;
      if (i < s.length() && s.charAt(i) == '[') {
        String m = s.substring(1, i);
        if (s.endsWith("]" + m + "]"))
          return s.substring(i + 1, s.length() - i - 1);
      }
    }
    if (s.length() > 1) {
      char c = s.charAt(0);
      if (c == '\"' || c == '\'') {
        int l = endsWith(s, c) ? s.length() - 1 : s.length();
        if (l > buf.length)
          return unquote(s);
        int n = 0;
        for (int i = 1; i < l; i++) {
          char ch = s.charAt(i);
          if (ch == '\\') {
            char nextChar = (i == l - 1) ? '\\' : s.charAt(i + 1);
            if (nextChar >= '0' && nextChar <= '7') {
              String code = "" + nextChar;
              i++;
              if ((i < l - 1) && s.charAt(i + 1) >= '0' && s.charAt(i + 1) <= '7') {
                code += s.charAt(i + 1);
                i++;
                if ((i < l - 1) && s.charAt(i + 1) >= '0' && s.charAt(i + 1) <= '7') {
                  code += s.charAt(i + 1);
                  i++;
                }
              }
              buf[n++] = (char) Integer.parseInt(code, 8);
              continue;
            }
            switch(nextChar) {
              case '\"':
                ch = '\"';
                break;
              case '\\':
                ch = '\\';
                break;
              case 'b':
                ch = '\b';
                break;
              case 'f':
                ch = '\f';
                break;
              case 'n':
                ch = '\n';
                break;
              case 'r':
                ch = '\r';
                break;
              case 't':
                ch = '\t';
                break;
              case '\'':
                ch = '\'';
                break;
              case 'u':
                if (i >= l - 5) {
                  ch = 'u';
                  break;
                }
                int code = Integer.parseInt("" + s.charAt(i + 2) + s.charAt(i + 3) + s.charAt(i + 4) + s.charAt(i + 5), 16);
                char[] x = Character.toChars(code);
                int lx = x.length;
                for (int j = 0; j < lx; j++) buf[n++] = x[j];
                i += 5;
                continue;
              default:
                ch = nextChar;
            }
            i++;
          }
          buf[n++] = ch;
        }
        return new String(buf, 0, n);
      }
    }
    return s;
  }

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

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

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

  public static String internIfLongerThan(String s, int l) {
    return s == null ? null : l(s) >= l ? intern(s) : s;
  }

  public static String unquote(String s) {
    if (s == null)
      return null;
    if (startsWith(s, '[')) {
      int i = 1;
      while (i < s.length() && s.charAt(i) == '=') ++i;
      if (i < s.length() && s.charAt(i) == '[') {
        String m = s.substring(1, i);
        if (s.endsWith("]" + m + "]"))
          return s.substring(i + 1, s.length() - i - 1);
      }
    }
    if (s.length() > 1) {
      char c = s.charAt(0);
      if (c == '\"' || c == '\'') {
        int l = endsWith(s, c) ? s.length() - 1 : s.length();
        StringBuilder sb = new StringBuilder(l - 1);
        for (int i = 1; i < l; i++) {
          char ch = s.charAt(i);
          if (ch == '\\') {
            char nextChar = (i == l - 1) ? '\\' : s.charAt(i + 1);
            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;
  }

  public static char unquoteCharacter(String s) {
    assertTrue(s.startsWith("'") && s.length() > 1);
    return unquote("\"" + s.substring(1, s.endsWith("'") ? s.length() - 1 : s.length()) + "\"").charAt(0);
  }

  public static double parseDouble(String s) {
    return Double.parseDouble(s);
  }

  public static float parseFloat(String s) {
    return Float.parseFloat(s);
  }

  public static boolean isLongConstant(String s) {
    if (!s.endsWith("L"))
      return false;
    s = s.substring(0, l(s) - 1);
    return isInteger(s);
  }

  public static long parseLong(String s) {
    if (s == null)
      return 0;
    return Long.parseLong(dropSuffix("L", s));
  }

  public static long parseLong(Object s) {
    return Long.parseLong((String) s);
  }

  public static boolean isInteger(String s) {
    int n = l(s);
    if (n == 0)
      return false;
    int i = 0;
    if (s.charAt(0) == '-')
      if (++i >= n)
        return false;
    while (i < n) {
      char c = s.charAt(i);
      if (c < '0' || c > '9')
        return false;
      ++i;
    }
    return true;
  }

  public static SortedMap synchronizedTreeMap() {
    return synchroTreeMap();
  }

  public static List parseList(String s) {
    return (List) safeUnstructure(s);
  }

  public static Map synchronizedMap() {
    return synchroMap();
  }

  public static <A, B> Map<A, B> synchronizedMap(Map<A, B> map) {
    return synchroMap(map);
  }

  public static byte[] hexToBytes(String s) {
    if (odd(l(s)))
      throw fail("Hex string has odd length: " + quote(shorten(10, s)));
    int n = l(s) / 2;
    byte[] bytes = new byte[n];
    for (int i = 0; i < n; i++) {
      int a = parseHexChar(s.charAt(i * 2));
      int b = parseHexChar(s.charAt(i * 2 + 1));
      if (a < 0 || b < 0)
        throw fail("Bad hex byte: " + quote(substring(s, i * 2, i * 2 + 2)) + " at " + i * 2 + "/" + l(s));
      bytes[i] = (byte) ((a << 4) | b);
    }
    return bytes;
  }

  public static boolean[] boolArrayFromBytes(byte[] a, int n) {
    boolean[] b = new boolean[n];
    int m = min(n, l(a) * 8);
    for (int i = 0; i < m; i++) b[i] = (a[i / 8] & 1 << (i & 7)) != 0;
    return b;
  }

  public static String assertIdentifier(String s) {
    return assertIsIdentifier(s);
  }

  public static <A> A nuStubInnerObject(Class<A> c) {
    return nuStubInnerObject(c, null);
  }

  public static <A> A nuStubInnerObject(Class<A> c, Object classFinder) {
    try {
      Class outerType = getOuterClass(c, classFinder);
      Constructor m = c.getDeclaredConstructor(outerType);
      m.setAccessible(true);
      return (A) m.newInstance(new Object[] { null });
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  public static Class findClass(String name) {
    synchronized (findClass_cache) {
      if (findClass_cache.containsKey(name))
        return findClass_cache.get(name);
      if (!isJavaIdentifier(name))
        return null;
      Class c;
      try {
        c = Class.forName("main$" + name);
      } catch (ClassNotFoundException e) {
        c = null;
      }
      findClass_cache.put(name, c);
      return c;
    }
  }

  public static void setOptAllDyn(DynamicObject o, Map<String, Object> fields) {
    if (fields == null)
      return;
    HashMap<String, Field> fieldMap = instanceFieldsMap(o);
    for (Map.Entry<String, Object> e : fields.entrySet()) {
      String field = e.getKey();
      Object val = e.getValue();
      boolean has = fieldMap.containsKey(field);
      if (has)
        setOpt(o, field, val);
      else {
        o.fieldValues.put(intern(field), val);
      }
    }
  }

  public static void setOptAll_pcall(Object o, Map<String, Object> fields) {
    if (fields == null)
      return;
    for (String field : keys(fields)) try {
      setOpt(o, field, fields.get(field));
    } catch (Throwable __e) {
      print(exceptionToStringShort(__e));
    }
  }

  public static void setOptAll_pcall(Object o, Object... values) {
    warnIfOddCount(values);
    for (int i = 0; i + 1 < l(values); i += 2) {
      String field = (String) values[i];
      Object value = values[i + 1];
      try {
        setOpt(o, field, value);
      } catch (Throwable __e) {
        print(exceptionToStringShort(__e));
      }
    }
  }

  public static String intern(String s) {
    return fastIntern(s);
  }

  public static void pcallOpt_noArgs(Object o, String method) {
    try {
      callOpt_noArgs(o, method);
    } catch (Throwable __e) {
      _handleException(__e);
    }
  }

  public static int[] toIntArray(List<Integer> l) {
    int[] a = new int[l(l)];
    for (int i = 0; i < a.length; i++) a[i] = l.get(i);
    return a;
  }

  public static boolean warn_on = true;

  public static void warn(String s) {
    if (warn_on)
      print("Warning: " + s);
  }

  public static void warn(String s, List<String> warnings) {
    warn(s);
    if (warnings != null)
      warnings.add(s);
  }

  public static <A> A popLast(List<A> l) {
    return liftLast(l);
  }

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

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

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

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

  public static boolean findCodeTokens_debug;

  public static int findCodeTokens_indexed, findCodeTokens_unindexed;

  public static int findCodeTokens_bails, findCodeTokens_nonbails;

  public static int findCodeTokens(List<String> tok, int startIdx, boolean ignoreCase, String[] tokens, Object condition) {
    if (findCodeTokens_debug) {
      if (eq(getClassName(tok), "main$IndexedList2"))
        findCodeTokens_indexed++;
      else
        findCodeTokens_unindexed++;
    }
    if (!findCodeTokens_specials.contains(tokens[0]) && !tok.contains(tokens[0])) {
      ++findCodeTokens_bails;
      return -1;
    }
    ++findCodeTokens_nonbails;
    outer: for (int i = startIdx | 1; i + tokens.length * 2 - 2 < tok.size(); i += 2) {
      for (int j = 0; j < tokens.length; j++) {
        String p = tokens[j], t = tok.get(i + j * 2);
        boolean match;
        if (eq(p, "*"))
          match = true;
        else if (eq(p, "<quoted>"))
          match = isQuoted(t);
        else if (eq(p, "<id>"))
          match = isIdentifier(t);
        else if (eq(p, "<int>"))
          match = isInteger(t);
        else if (eq(p, "\\*"))
          match = eq("*", t);
        else
          match = ignoreCase ? eqic(p, t) : eq(p, t);
        if (!match)
          continue outer;
      }
      if (condition == null || checkTokCondition(condition, tok, i - 1))
        return i;
    }
    return -1;
  }

  public static List<String> codeTokensOnly(List<String> tok) {
    List<String> l = new ArrayList();
    for (int i = 1; i < tok.size(); i += 2) l.add(tok.get(i));
    return l;
  }

  public static <A> ArrayList<A> litlist(A... a) {
    ArrayList l = new ArrayList(a.length);
    for (A x : a) l.add(x);
    return l;
  }

  public static <A> List<A> replaceSublist(List<A> l, List<A> x, List<A> y) {
    if (x == null)
      return l;
    int i = 0;
    while (true) {
      i = indexOfSubList(l, x, i);
      if (i < 0)
        break;
      removeSubList(l, i, i + l(x));
      l.addAll(i, y);
      i += l(y);
    }
    return l;
  }

  public static <A> List<A> replaceSublist(List<A> l, int fromIndex, int toIndex, List<A> y) {
    removeSubList(l, fromIndex, toIndex);
    l.addAll(fromIndex, y);
    return l;
  }

  public static <A> List<A> replaceSublist(List<A> l, IntRange r, List<A> y) {
    return replaceSublist(l, r.start, r.end, y);
  }

  public static boolean equalsIgnoreCase(String a, String b) {
    return eqic(a, b);
  }

  public static boolean equalsIgnoreCase(char a, char b) {
    return eqic(a, b);
  }

  public static boolean eqicOneOf(String s, String... l) {
    for (String x : l) if (eqic(s, x))
      return true;
    return false;
  }

  public static <A> IterableIterator<A> iteratorFromFunction(final Object f) {
    class IFF extends IterableIterator<A> {

      public A a;

      public boolean done;

      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 = (A) callF(f);
        done = a == null;
      }
    }
    ;
    return new IFF();
  }

  public static <A> IterableIterator<A> iteratorFromFunction(final F0<A> f) {
    return iteratorFromFunction_f0(f);
  }

  public static JList makeList(String... strings) {
    JList list = new JList();
    fillListWithStrings(list, strings);
    return list;
  }

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

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

  public static <A> List<A> repeat(int n, A a) {
    return repeat(a, n);
  }

  public static List<String> tok_combineRoundCurlySquareBrackets_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) && eqOneOf(t, "{", "(", "[")) {
        int j = findEndOfBracketPart2(tok, i);
        l.add(joinSubList(tok, i, j));
        i = j - 1;
      } else
        l.add(t);
    }
    return l;
  }

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

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

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

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

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

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

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

  public static <A> int smartIndexOf(List<A> l, A sub, int start) {
    int i = indexOf(l, sub, start);
    return i < 0 ? l(l) : i;
  }

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

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

  public static <A> ArrayList<A> toList(A[] a) {
    return asList(a);
  }

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

  public static <A> ArrayList<A> toList(Set<A> s) {
    return asList(s);
  }

  public static <A> ArrayList<A> toList(Iterable<A> s) {
    return asList(s);
  }

  public static <A> int indexOfSubList(List<A> x, List<A> y) {
    return indexOfSubList(x, y, 0);
  }

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

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

  public static String trimJoin(List<String> s) {
    return trim(join(s));
  }

  public static List<String> javaTokPlusAllThreeBrackets(String s) {
    return javaTokPlusBrackets2(s);
  }

  public static Pair<String, String> splitAtTokens_once(String s, List<String> tokens) {
    return splitAtTokens_once(javaTok(s), tokens);
  }

  public static Pair<String, String> splitAtTokens_once(List<String> tok, List<String> tokens) {
    int i = indexOfSubList(tok, tokens, 0);
    if (i < 0)
      return null;
    return pair(trimJoinSubList(tok, 0, i), trimJoinSubList(tok, i + l(tokens)));
  }

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

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

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

  public static <A, B, C> B second(T3<A, B, C> t) {
    return t == null ? null : t.b;
  }

  public static boolean isRoundBracketed(String s) {
    return startsWith(s, "(") && endsWith(s, ")");
  }

  public static String deRoundBracket(String s) {
    if (startsWith(s, "(") && endsWith(s, ")"))
      return substring(s, 1, l(s) - 1);
    return s;
  }

  public static String unquoteIfNormalQuoted(String s) {
    return isNormalQuoted(s) ? unquote(s) : s;
  }

  public static List<String> splitAtTokens(String s, List<String> tokens) {
    return splitAtTokens(javaTok(s), tokens);
  }

  public static List<String> splitAtTokens(List<String> tok, List<String> tokens) {
    List<String> l = new ArrayList();
    int i = 0;
    while (i < l(tok)) {
      int j = indexOfSubList(tok, tokens, i);
      if (i >= l(tok))
        break;
      if (j < 0)
        j = l(tok);
      l.add(trimJoin(tok.subList(i, j)));
      i = j + l(tokens);
    }
    return l;
  }

  public static List<String> splitAtTokens(List<String> tok, String... tokens) {
    List<String> l = new ArrayList();
    int i = 0;
    while (i < l(tok)) {
      int j = indexOfSubList(tok, tokens, i);
      if (i >= l(tok))
        break;
      if (j < 0)
        j = l(tok);
      l.add(trimJoin(tok.subList(i, j)));
      i = j + l(tokens);
    }
    return l;
  }

  public static boolean isQuoted(String s) {
    if (isNormalQuoted(s))
      return true;
    return isMultilineQuoted(s);
  }

  public static String md5ToGlobalID(String md5) {
    return bigintToGlobalID(bigintFromHex(assertPossibleMD5(md5)));
  }

  public static String md5(String text) {
    try {
      if (text == null)
        return "-";
      return bytesToHex(md5_impl(toUtf8(text)));
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  public static MessageDigest md5_md;

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

  public static String md5(File file) {
    return md5OfFile(file);
  }

  public static BufferedReader bufferedReader(Reader r) {
    return r instanceof BufferedReader ? (BufferedReader) r : _registerIOWrap(new BufferedReader(r), r);
  }

  public static <A> CloseableIterableIterator<A> iteratorFromFunction_f0_autoCloseable(final F0<A> f, final AutoCloseable closeable) {
    class IFF2 extends CloseableIterableIterator<A> {

      public A a;

      public boolean done;

      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();
  }

  public static String readLineFromReaderWithClose(BufferedReader r) {
    try {
      String s = r.readLine();
      if (s == null)
        r.close();
      return s;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static AutoCloseable _wrapIOCloseable(final AutoCloseable c) {
    return c == null ? null : new AutoCloseable() {

      public String toString() {
        return "c.close();\r\n    _registerIO(c, null, false);";
      }

      public void close() throws Exception {
        c.close();
        _registerIO(c, null, false);
      }
    };
  }

  public static <A> A _registerIOWrap(A wrapper, Object wrapped) {
    return wrapper;
  }

  public static FileInputStream newFileInputStream(File path) throws IOException {
    return newFileInputStream(path.getPath());
  }

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

  public static int gzInputStream_defaultBufferSize = 65536;

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

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

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

  public static GZIPInputStream gzInputStream(InputStream in, int bufferSize) {
    try {
      return _registerIOWrap(new GZIPInputStream(in, gzInputStream_defaultBufferSize), in);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static List<String> mechList_opt_tlft(String name) {
    return tlft(mechList_opt_raw(name));
  }

  public static <A> TreeMap<String, A> ciMap() {
    return caseInsensitiveMap();
  }

  public static String mechList_raw_fresh(String name) {
    return mechList_opt_raw_fresh(name);
  }

  public static void add(BitSet bs, int i) {
    bs.set(i);
  }

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

  public static void add(Container c, Component x) {
    addToContainer(c, x);
  }

  public static Set vm_busListeners_live_cache;

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

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

  public static <A> void remove(List<A> l, int i) {
    if (l != null && i >= 0 && i < l(l))
      l.remove(i);
  }

  public static <A> void remove(Collection<A> l, A a) {
    if (l != null)
      l.remove(a);
  }

  public static int numberOfJavaTokens(String s) {
    return l(javaTokC(s));
  }

  public static <T> void sort(T[] a, Comparator<? super T> c) {
    Arrays.sort(a, c);
  }

  public static <T> void sort(T[] a) {
    Arrays.sort(a);
  }

  public static <T> void sort(List<T> a, Comparator<? super T> c) {
    Collections.sort(a, c);
  }

  public static void sort(List a) {
    Collections.sort(a);
  }

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

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

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

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

  public static HashSet collectAsHashSet(Iterable c, String field) {
    HashSet set = new HashSet();
    if (c != null)
      for (Object a : c) set.add(getOpt(a, field));
    return set;
  }

  public static HashSet collectAsHashSet(String field, Iterable c) {
    return collectAsHashSet(c, field);
  }

  public static void mapIntoSameCollection(Object f, Collection c) {
    if (c == null)
      return;
    replaceCollection(c, map(f, c));
  }

  public static void mapIntoSameCollection(Collection c, Object f) {
    mapIntoSameCollection(f, c);
  }

  public static List<String> splitAtVerticalBar(String s) {
    return s == null ? new ArrayList() : trimAll(asList(s.split("\\|")));
  }

  public static String format(String pat, Object... args) {
    return format3(pat, args);
  }

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

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

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

  public static boolean regionMatchesIC(String a, int offsetA, String b, int offsetB, int len) {
    return a != null && a.regionMatches(true, offsetA, b, offsetB, len);
  }

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

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

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

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

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

  public static Collection<String> getCodeFragmentSafety(String code) {
    Map<String, String> map = mechHashMap("JavaX Identifier Safety");
    Set<String> identifiers = tok_allIdentifiers(code);
    Collection<String> tags = treeSet();
    for (String id : identifiers) {
      String tag;
      if (startsWith(id, "$"))
        tag = "safe";
      else
        tag = or2(map.get(id), "?");
      tags.addAll(tokSplitAtComma(tag));
    }
    tags = simplifySafetyTags(tags);
    if (empty(tags))
      tags.add("?");
    return tags;
  }

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

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

  public static String ai_standardReplaceVars(String s, Map<String, String> matches) {
    return replaceVars_withDollarQ(s, matches);
  }

  public static StringMatcher ai_standardMatcher() {
    return new CombinedStringMatcher(new NLStringMatcher_dollarVars_underscores_dollarDollar(), new NLStringMatcher_dollarVars_plusBrackets());
  }

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

  public static Throwable unwrapTrivialExceptionWraps(Throwable e) {
    if (e == null)
      return e;
    while (e.getClass() == RuntimeException.class && e.getCause() != null && eq(e.getMessage(), str(e.getCause()))) e = e.getCause();
    return e;
  }

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

  public static WeakReference<Object> creator_class;

  public static Object creator() {
    return creator_class == null ? null : creator_class.get();
  }

  public static Map synchroHashMap() {
    return Collections.synchronizedMap(new HashMap());
  }

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

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

  public static Class _getClass(Object realm, String name) {
    try {
      return getClass(realm).getClassLoader().loadClass(classNameToVM(name));
    } catch (ClassNotFoundException e) {
      return null;
    }
  }

  public static Object callFunction(Object f, Object... args) {
    return callF(f, args);
  }

  public static boolean containsNewLines(String s) {
    return containsNewLine(s);
  }

  public static String jlabel_textAsHTML_center(String text) {
    return "<html><div style=\"text-align: center;\">" + replace(htmlencode(text), "\n", "<br>") + "</div></html>";
  }

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

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

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

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

  public static JComboBox onEnter(final JComboBox cb, final Object action) {
    {
      swing(new Runnable() {

        public void run() {
          try {
            if (cb.isEditable()) {
              JTextField text = (JTextField) cb.getEditor().getEditorComponent();
              onEnter(text, action);
            } else {
              cb.getInputMap().put(KeyStroke.getKeyStroke("ENTER"), "enter");
              cb.getActionMap().put("enter", abstractAction("", new Runnable() {

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

                public String toString() {
                  return "cb.hidePopup(); callF(action);";
                }
              }));
            }
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "if (cb.isEditable()) {\r\n      JTextField text = (JTextField) cb.getEditor().g...";
        }
      });
    }
    return cb;
  }

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

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

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

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

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

  public static Font loadFont(String snippetID) {
    try {
      return loadFont(snippetID, 12f);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

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

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

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

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

  public static Throwable getException(Runnable r) {
    try {
      callF(r);
      return null;
    } catch (Throwable e) {
      return e;
    }
  }

  public static String quickSubstring(String s, int i, int j) {
    if (i == j)
      return "";
    return s.substring(i, j);
  }

  public static NavigableMap synchroTreeMap() {
    return Collections.synchronizedNavigableMap(new TreeMap());
  }

  public static Object safeUnstructure(String s) {
    return unstructure(s, true);
  }

  public static Map synchroMap() {
    return synchroHashMap();
  }

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

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

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

  public static boolean odd(BigInteger i) {
    return odd(toInt(i));
  }

  public static int shorten_default = 100;

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

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

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

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

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

  public static String assertIsIdentifier(String s) {
    if (!isIdentifier(s))
      throw fail("Not an identifier: " + quote(s));
    return s;
  }

  public static Class getOuterClass(Class c) {
    return getOuterClass(c, null);
  }

  public static Class getOuterClass(Class c, Object classFinder) {
    try {
      String s = c.getName();
      int i = s.lastIndexOf('$');
      String name = substring(s, 0, i);
      if (classFinder != null)
        return (Class) callF(classFinder, name);
      return Class.forName(name);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static HashMap<String, Field> instanceFieldsMap(Object o) {
    Class c = o.getClass();
    HashMap<String, Field> map;
    synchronized (getOpt_cache) {
      map = getOpt_cache.get(c);
      if (map == null)
        map = getOpt_makeCache(c);
    }
    return map;
  }

  public static String exceptionToStringShort(Throwable e) {
    lastException(e);
    e = getInnerException(e);
    String msg = hideCredentials(unnull(e.getMessage()));
    if (msg.indexOf("Error") < 0 && msg.indexOf("Exception") < 0)
      return baseClassName(e) + prependIfNempty(": ", msg);
    else
      return msg;
  }

  public static void warnIfOddCount(Object... list) {
    if (odd(l(list)))
      printStackTrace("Odd list size: " + list);
  }

  public static Method fastIntern_method;

  public static String fastIntern(String s) {
    try {
      if (s == null)
        return null;
      if (fastIntern_method == null) {
        fastIntern_method = findMethodNamed(javax(), "internPerProgram");
        if (fastIntern_method == null)
          upgradeJavaXAndRestart();
      }
      return (String) fastIntern_method.invoke(null, s);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static Map<Class, HashMap<String, Method>> callOpt_noArgs_cache = newDangerousWeakHashMap();

  public static Object callOpt_noArgs(Object o, String method) {
    try {
      if (o == null)
        return null;
      if (o instanceof Class)
        return callOpt(o, method);
      Class c = o.getClass();
      HashMap<String, Method> map;
      synchronized (callOpt_noArgs_cache) {
        map = callOpt_noArgs_cache.get(c);
        if (map == null)
          map = callOpt_noArgs_makeCache(c);
      }
      Method m = map.get(method);
      return m != null ? m.invoke(o) : null;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static HashMap<String, Method> callOpt_noArgs_makeCache(Class c) {
    HashMap<String, Method> map = new HashMap();
    Class _c = c;
    do {
      for (Method m : c.getDeclaredMethods()) if (m.getParameterTypes().length == 0) {
        m.setAccessible(true);
        String name = m.getName();
        if (!map.containsKey(name))
          map.put(name, m);
      }
      _c = _c.getSuperclass();
    } while (_c != null);
    callOpt_noArgs_cache.put(c, map);
    return map;
  }

  public static <A> A liftLast(List<A> l) {
    if (l.isEmpty())
      return null;
    int i = l(l) - 1;
    A a = l.get(i);
    l.remove(i);
    return a;
  }

  public static boolean checkTokCondition(Object condition, List<String> tok, int i) {
    if (condition instanceof TokCondition)
      return ((TokCondition) condition).get(tok, i);
    return checkCondition(condition, tok, i);
  }

  public static void removeSubList(List l, int from, int to) {
    if (l != null)
      subList(l, from, to).clear();
  }

  public static void removeSubList(List l, int from) {
    if (l != null)
      subList(l, from).clear();
  }

  public static <A> IterableIterator<A> iteratorFromFunction_f0(final F0<A> f) {
    class IFF2 extends IterableIterator<A> {

      public A a;

      public boolean done;

      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;
      }
    }
    ;
    return new IFF2();
  }

  public static void fillListWithStrings(final JList list, List<String> contents) {
    if (list == null)
      return;
    final DefaultListModel model = new DefaultListModel();
    if (contents != null)
      for (String s : contents) model.addElement(empty(s) ? " " : s);
    {
      swing(new Runnable() {

        public void run() {
          try {
            list.setModel(model);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "list.setModel(model);";
        }
      });
    }
  }

  public static void fillListWithStrings(final JList list, String[] contents) {
    fillListWithStrings(list, asList(contents));
  }

  public static int findEndOfBracketPart2(List<String> cnc, int i) {
    int j = i + 2, level = 1;
    while (j < cnc.size()) {
      if (eqOneOf(cnc.get(j), "{", "(", "["))
        ++level;
      else if (eqOneOf(cnc.get(j), "}", ")", "]"))
        --level;
      if (level == 0)
        return j + 1;
      ++j;
    }
    return cnc.size();
  }

  public static String trimJoinSubList(List<String> l, int i, int j) {
    return trim(join(subList(l, i, j)));
  }

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

  public static boolean isNormalQuoted(String s) {
    int l = l(s);
    if (!(l >= 2 && s.charAt(0) == '"' && lastChar(s) == '"'))
      return false;
    int j = 1;
    while (j < l) if (s.charAt(j) == '"')
      return j == l - 1;
    else if (s.charAt(j) == '\\' && j + 1 < l)
      j += 2;
    else
      ++j;
    return false;
  }

  public static boolean isMultilineQuoted(String s) {
    if (!startsWith(s, "["))
      return false;
    int i = 1;
    while (i < s.length() && s.charAt(i) == '=') ++i;
    return i < s.length() && s.charAt(i) == '[';
  }

  public static String bigintToGlobalID(BigInteger value) {
    char[] buf = new char[16];
    for (int i = 16 - 1; i >= 0; i--) {
      buf[i] = charPlus('a', mod(value, 26).intValue());
      value = div(value, 26);
    }
    return str(buf);
  }

  public static BigInteger bigintFromHex(String s) {
    return new BigInteger(s, 16);
  }

  public static String assertPossibleMD5(String s) {
    if (!possibleMD5(s))
      throw fail("Not an MD5 signature: " + s);
    return s;
  }

  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();
  }

  public static byte[] toUtf8(String s) {
    try {
      return s.getBytes("UTF-8");
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static boolean md5OfFile_verbose;

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

  public static String md5OfFile(File f) {
    try {
      if (!f.exists())
        return "-";
      if (md5OfFile_verbose)
        print("Getting MD5 of " + f);
      MessageDigest md5 = MessageDigest.getInstance("MD5");
      FileInputStream in = new FileInputStream(f);
      try {
        byte[] buf = new byte[65536];
        int l;
        while (true) {
          l = in.read(buf);
          if (l <= 0)
            break;
          md5.update(buf, 0, l);
        }
        return bytesToHex(md5.digest());
      } finally {
        _close(in);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static void _registerIO(Object object, String path, boolean opened) {
  }

  public static String mechList_opt_raw(String name) {
    try {
      Lock __965 = mechList_raw_lock;
      lock(__965);
      try {
        if (mechList_goToCreator() || eq(mechMode().readMode, "creator"))
          return (String) call(creator(), "mechList_opt_raw", name);
        String src = mechList_raw_cache.get(name);
        if (src != null)
          return src;
        src = mechList_opt_raw_fresh(name);
        mechList_raw_cache.put(name, unnull(src));
        return src;
      } finally {
        unlock(__965);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static void _onLoad_mechList_opt_raw() {
    _registerAutoCloseable(vmBus_onMessage("mechList_clearCache", new VF1<String>() {

      public void get(String listName) {
        try {
          if (!isTrue(mechList_clearCache_inFunction.get()))
            mechList_clearCache_noSend(listName);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "if (!isTrue(mechList_clearCache_inFunction!))\r\n      mechList_clearCache_noSe...";
      }
    }));
  }

  public static <A> TreeMap<String, A> caseInsensitiveMap() {
    return new TreeMap(caseInsensitiveComparator());
  }

  public static String mechList_opt_raw_fresh(String name) {
    Object readMode = mechMode().readMode;
    if (readMode instanceof File) {
      String md5Name = uniqueFileNameUsingMD5_80_v2(upper(name));
      return loadTextFileFromZipFile((File) readMode, md5Name);
    }
    boolean useLocal = false, useRemote = true;
    if (eq(readMode, "mergeLocalAndRemote"))
      useLocal = true;
    else if (eq(readMode, "local")) {
      useLocal = true;
      useRemote = false;
    }
    String s = "";
    if (useRemote) {
      if (eq(mechMode().readMode, "localCopies"))
        s = unnull(loadTextFile(remoteMechListMirrorFile(name)));
      else
        s = serverMechList_raw_fresh(name, true);
    }
    if (useLocal)
      s = appendNewLineIfNempty(s) + localMechList_opt_raw_fresh(name);
    return s;
  }

  public static void addToContainer(final Container a, final Component b) {
    if (a != null && b != null) {
      swing(new Runnable() {

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

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

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

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

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

  public static <A> void replaceCollection(Collection<A> dest, Collection<A> src) {
    dest.clear();
    dest.addAll(src);
  }

  public static List<String> trimAll(Collection<String> l) {
    List<String> l2 = new ArrayList();
    if (l != null)
      for (String s : l) l2.add(trim(s));
    return l2;
  }

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

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

  public static Map<String, Pair<String, Map<String, String>>> mechHashMap_cache = synchroMap();

  public static Map<String, String> mechHashMap(String listName) {
    Pair<String, Map<String, String>> p = mechHashMap_cache.get(listName);
    String text = mechList_raw(listName);
    if (p != null && eq(p.a, text))
      return p.b;
    String parsing = first(mechList_opt(listName + " | Parsing"));
    p = pair(text, (Map<String, String>) (parsing != null ? asHashMap((Map<String, String>) callAndMake(parsing, text)) : parseDoubleArrowMap(new HashMap(), tlft(text))));
    mechHashMap_cache.put(listName, p);
    return p.b;
  }

  public static Set<String> tok_allIdentifiers(String s) {
    return new HashSet<String>(filter("isIdentifier", javaTokC(s)));
  }

  public static <A> TreeSet<A> treeSet() {
    return new TreeSet();
  }

  public static String or2(String a, String b) {
    return nempty(a) ? a : b;
  }

  public static String or2(String a, String b, String c) {
    return or2(or2(a, b), c);
  }

  public static List<String> tokSplitAtComma(String s) {
    List<String> tok = javaTok(s);
    List<String> l = new ArrayList();
    while (l(tok) > 1) {
      int i = smartIndexOf(tok, ",");
      l.add(trim(join(subList(tok, 0, i))));
      tok = subList(tok, i + 1);
    }
    return l;
  }

  public static Collection<String> simplifySafetyTags(Collection<String> tags) {
    List<String> l = uniquifyList(tags);
    if (l.contains("safe") && containsAnythingNeq(l, "safe"))
      return listMinus(l, "safe");
    return l;
  }

  public static String simplifySafetyTags(String tags) {
    List<String> l = tokSplitAtComma(tags);
    Collection<String> l2 = simplifySafetyTags(l);
    return l(l2) != l(l) ? joinWithComma(l2) : tags;
  }

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

  public static String structureForUser(Object o) {
    return beautifyStructure(struct_noStringSharing(o));
  }

  public static String replaceVars_withDollarQ(String s, Map<String, String> map) {
    return empty(map) ? s : join(replaceVars_withDollarQ(javaTok(s), map));
  }

  public static List<String> replaceVars_withDollarQ(List<String> tok, Map<String, String> map) {
    if (empty(map))
      return tok;
    tok = cloneList(tok);
    for (int i = 1; i < l(tok); i += 2) {
      String t = tok.get(i);
      String value = map.get(t);
      if (value != null)
        tok.set(i, value);
      else if (t.startsWith("$_q_")) {
        value = map.get("$" + substring(t, 4));
        if (value != null)
          tok.set(i, quote(value));
      }
    }
    return tok;
  }

  public static int randomID_defaultLength = 12;

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

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

  public static int globalIDLength() {
    return 16;
  }

  public static 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);
    }
  }

  public static final Map<Class, HashMap<String, Field>> getOpt_cache = _registerDangerousWeakMap(synchroMap(new getOpt_Map()));

  public static HashMap getOpt_special;

  public static Object getOpt_cached(Object o, String field) {
    try {
      if (o == null)
        return null;
      Class c = o.getClass();
      HashMap<String, Field> map;
      synchronized (getOpt_cache) {
        map = getOpt_cache.get(c);
        if (map == null)
          map = getOpt_makeCache(c);
      }
      if (map == getOpt_special) {
        if (o instanceof Class)
          return getOpt((Class) o, field);
        if (o instanceof Map)
          return ((Map) o).get(field);
      }
      Field f = map.get(field);
      if (f != null)
        return f.get(o);
      if (o instanceof DynamicObject)
        return ((DynamicObject) o).fieldValues.get(field);
      return null;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static HashMap<String, Field> getOpt_makeCache(Class c) {
    HashMap<String, Field> map;
    if (isSubtypeOf(c, Map.class))
      map = getOpt_special;
    else {
      map = new HashMap();
      Class _c = c;
      do {
        for (Field f : _c.getDeclaredFields()) {
          f.setAccessible(true);
          String name = f.getName();
          if (!map.containsKey(name))
            map.put(name, f);
        }
        _c = _c.getSuperclass();
      } while (_c != null);
    }
    if (getOpt_cache != null)
      getOpt_cache.put(c, map);
    return map;
  }

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

  public static void mechList_clearCache(String listName) {
    {
      AutoCloseable __1003 = tempSetTL(mechList_clearCache_inFunction, true);
      try {
        print("Sending mech clear: " + listName);
        vmBus_send("mechList_clearCache", listName);
      } finally {
        _close(__1003);
      }
    }
    mechList_clearCache_noSend(listName);
  }

  public static void mechList_clearCache_noSend(String listName) {
    for (String field : mcFields()) if (startsWithEndsWith(field, "mech", "_cache")) {
      Object o = getOptMC(field);
      if (o instanceof Map)
        removeFromMapCI_sync((Map) o, listName);
    }
  }

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

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

  public static Class getClass(Object realm, String name) {
    try {
      try {
        return getClass(realm).getClassLoader().loadClass(classNameToVM(name));
      } catch (ClassNotFoundException e) {
        return null;
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static String classNameToVM(String name) {
    return name.replace(".", "$");
  }

  public static boolean containsNewLine(String s) {
    return contains(s, '\n');
  }

  public static <A> List<A> replace(List<A> l, A a, A b) {
    for (int i = 0; i < l(l); i++) if (eq(l.get(i), a))
      l.set(i, b);
    return l;
  }

  public static String replace(String s, String a, String b) {
    return s == null ? null : a == null || b == null ? s : s.replace(a, b);
  }

  public static String replace(String s, char a, char b) {
    return s == null ? null : s.replace(a, b);
  }

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

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

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

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

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

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

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

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

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

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

  public static File loadLibrary(String snippetID) {
    return loadBinarySnippet(snippetID);
  }

  public static int toInt(Object o) {
    if (o == null)
      return 0;
    if (o instanceof Number)
      return ((Number) o).intValue();
    if (o instanceof String)
      return parseInt((String) o);
    throw fail("woot not int: " + getClassName(o));
  }

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

  public static int charDiff(char a, char b) {
    return (int) a - (int) b;
  }

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

  public static String baseClassName(String className) {
    return substring(className, className.lastIndexOf('.') + 1);
  }

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

  public static String prependIfNempty(String prefix, String s) {
    return empty(s) ? s : prefix + s;
  }

  public static Method findMethodNamed(Object obj, String method) {
    if (obj == null)
      return null;
    if (obj instanceof Class)
      return findMethodNamed((Class) obj, method);
    return findMethodNamed(obj.getClass(), method);
  }

  public static Method findMethodNamed(Class c, String method) {
    while (c != null) {
      for (Method m : c.getDeclaredMethods()) if (m.getName().equals(method)) {
        m.setAccessible(true);
        return m;
      }
      c = c.getSuperclass();
    }
    return null;
  }

  public static void upgradeJavaXAndRestart() {
    run("#1001639");
    restart();
    sleep();
  }

  public static boolean checkCondition(Object condition, Object... args) {
    return isTrue(callF(condition, args));
  }

  public static char charPlus(char a, int b) {
    return (char) (((int) a) + b);
  }

  public static int mod(int n, int m) {
    return (n % m + m) % m;
  }

  public static long mod(long n, long m) {
    return (n % m + m) % m;
  }

  public static BigInteger mod(BigInteger n, int m) {
    return n.mod(bigint(m));
  }

  public static double mod(double n, double m) {
    return (n % m + m) % m;
  }

  public static String div(Object contents, Object... params) {
    return hfulltag("div", contents, params);
  }

  public static BigInteger div(BigInteger a, BigInteger b) {
    return a.divide(b);
  }

  public static BigInteger div(BigInteger a, int b) {
    return a.divide(bigint(b));
  }

  public static boolean possibleMD5(String s) {
    return isMD5(s);
  }

  public static File newFile(File base, String... names) {
    for (String name : names) base = new File(base, name);
    return base;
  }

  public static File newFile(String name) {
    return name == null ? null : new File(name);
  }

  public static boolean mechList_goToCreator_dont;

  public static boolean mechList_goToCreator() {
    return eqOneOf(mechMode().readMode, null, "creator") && !mechList_goToCreator_dont && hasMethodNamed(creator(), "mechList_opt_raw");
  }

  public static Set<AutoCloseable> _registerAutoCloseable_set = synchroHashSet();

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

  public static void cleanMeUp__registerAutoCloseable() {
    closeAutoCloseables(getAndClearList(_registerAutoCloseable_set));
  }

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

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

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

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

  public static <A, B, C> AutoCloseable vmBus_onMessage(String msg, final VF3<A, B, C> onMessage) {
    return vmBus_onMessage(msg, new VF1<Object[]>() {

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

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

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

  public static Comparator<String> caseInsensitiveComparator() {
    return betterCIComparator();
  }

  public static String uniqueFileNameUsingMD5_80_v2(String fullName) {
    return uniqueFileNameUsingMD5_80_v2(fullName, md5(fullName));
  }

  public static String uniqueFileNameUsingMD5_80_v2(String fullName, String md5) {
    return takeFirst(80 - 33, fileNameEncode(fullName)) + " - " + md5;
  }

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

  public static char upper(char c) {
    return Character.toUpperCase(c);
  }

  public static String loadTextFileFromZipFile(File inZip, String fileName) {
    try {
      if (!fileExists(inZip))
        return null;
      try {
        ZipFile zip = new ZipFile(inZip);
        try {
          return loadTextFileFromZipFile(zip, fileName);
        } finally {
          _close(zip);
        }
      } catch (Throwable e) {
        throw fail(f2s(inZip), e);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static String loadTextFileFromZipFile(ZipFile zip, String fileName) {
    try {
      ZipEntry entry = zip.getEntry(fileName);
      if (entry == null)
        return null;
      InputStream fin = zip.getInputStream(entry);
      try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        copyStream(fin, baos);
        return fromUTF8(baos.toByteArray());
      } finally {
        _close(fin);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  public static String loadTextFile(File f, String defaultContents) {
    try {
      checkFileNotTooBigToRead(f);
      if (f == null || !f.exists())
        return defaultContents;
      FileInputStream fileInputStream = new FileInputStream(f);
      InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8");
      return loadTextFile(inputStreamReader);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

  public static String loadTextFile(Reader reader) throws IOException {
    StringBuilder builder = new StringBuilder();
    try {
      char[] buffer = new char[1024];
      int n;
      while (-1 != (n = reader.read(buffer))) builder.append(buffer, 0, n);
    } finally {
      reader.close();
    }
    return str(builder);
  }

  public static File remoteMechListMirrorFile(String listName) {
    return newFile(remoteMechListMirrorsDir(), uniqueFileNameUsingMD5_80_v2(upper(listName)));
  }

  public static boolean serverMechList_raw_fresh_verbose;

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

  public static String serverMechList_raw_fresh(String name, boolean opt) {
    Lock __1068 = downloadLock();
    lock(__1068);
    try {
      String text = null;
      try {
        text = loadTextFile(remoteMechListMirrorFile(name));
      } catch (Throwable __e) {
        _handleException(__e);
      }
      Object[] params = muricaCredentialsPlus("md5", md5OrNull(text), "l", l(text), "opt", opt ? 1 : 0, "withStatus", 1);
      String url = "http://butter.botcompany.de:8080/mech/raw/list-text/" + urlencode(name);
      String page = postPageSilently(url, params);
      Map map = jsonDecodeMap(page);
      boolean same = eq(map.get("Same"), true);
      boolean appended = eq(map.get("Appended"), true);
      saveTextFile(remoteMechListMirrorMetaFile(name), struct(getMultipleKeys(map, "Name", "Status")));
      if (!same) {
        if (appended)
          text += (String) map.get("Text");
        else
          text = (String) map.get("Text");
        saveTextFile(remoteMechListMirrorFile(name), text);
        File nameFile = remoteMechListMirrorNameFile(name);
        if (!fileExists(nameFile)) {
          String actualName = or((String) map.get("Name"), name);
          saveTextFile(nameFile, actualName);
        }
      }
      if (serverMechList_raw_fresh_verbose)
        print("Mech list " + name + ": " + (appended ? "appended" : same ? "same" : "downloaded") + ": " + n2(countLines(text), "line"));
      if (!same)
        vmBus_send("remoteMechListMirrorChanged", name);
      return text;
    } finally {
      unlock(__1068);
    }
  }

  public static String appendNewLineIfNempty(String s) {
    return empty(s) ? "" : s + "\n";
  }

  public static String localMechList_opt_raw_fresh(String name) {
    return unnull(loadTextFile(localMechListFile(name)));
  }

  public static <A, B> HashMap<A, B> asHashMap(Map<A, B> map) {
    if (map instanceof HashMap)
      return (HashMap) map;
    HashMap<A, B> m = new HashMap();
    m.putAll(map);
    return m;
  }

  public static Object callAndMake(String functionName, Object... args) {
    return callAndMake_orDirect(functionName, args);
  }

  public static Map<String, String> parseDoubleArrowMap(Map<String, String> map, List<String> l) {
    for (String s : l) {
      List<String> x = splitAtDoubleArrow_bothDirections(s);
      if (l(x) == 2)
        map.put(first(x), second(x));
    }
    return map;
  }

  public static <A> List<A> uniquifyList(Collection<A> l) {
    if (l == null)
      return null;
    if (l(l) < 2)
      return asList(l);
    HashSet<A> set = new HashSet();
    List<A> out = new ArrayList();
    for (A a : l) if (set.add(a))
      out.add(a);
    return out;
  }

  public static <A> boolean containsAnythingNeq(Collection<A> l, A a) {
    for (A x : unnull(l)) if (neq(x, a))
      return true;
    return false;
  }

  public static <A> List<A> listMinus(Collection<A> l, Object... stuff) {
    if (l == null)
      return null;
    List l2 = similarEmptyList(l);
    Set set = lithashset(stuff);
    for (Object o : l) if (!set.contains(o))
      l2.add(o);
    return l2;
  }

  public static boolean isLetter(char c) {
    return Character.isLetter(c);
  }

  public static String beautifyStructure(String s) {
    List<String> tok = javaTok(s);
    structure_addTokenMarkers(tok);
    jreplace(tok, "lhm", "");
    return join(tok);
  }

  public static String struct_noStringSharing(Object o) {
    structure_Data d = new structure_Data();
    d.noStringSharing = true;
    return structure(o, d);
  }

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

  public static String makeRandomID(int length, Random random) {
    char[] id = new char[length];
    for (int i = 0; i < id.length; i++) id[i] = (char) ((int) 'a' + random.nextInt(26));
    return new String(id);
  }

  public static void clear(Collection c) {
    if (c != null)
      c.clear();
  }

  public static <A, B> void put(Map<A, B> map, A a, B b) {
    if (map != null)
      map.put(a, b);
  }

  public static List<Pair> _registerDangerousWeakMap_preList;

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

  public static <A> A _registerDangerousWeakMap(A map, Object init) {
    callF(init, map);
    if (init instanceof String) {
      final String f = (String) (init);
      init = new VF1<Map>() {

        public void get(Map map) {
          try {
            callMC(f, map);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "callMC(f, map)";
        }
      };
    }
    if (javax() == null) {
      if (_registerDangerousWeakMap_preList == null)
        _registerDangerousWeakMap_preList = synchroList();
      _registerDangerousWeakMap_preList.add(pair(map, init));
      return map;
    }
    call(javax(), "_registerDangerousWeakMap", map, init);
    return map;
  }

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

  public static boolean isSubtypeOf(Class a, Class b) {
    return b.isAssignableFrom(a);
  }

  public static void vmBus_send(String msg, Object... args) {
    Object arg = empty(args) ? null : l(args) == 1 ? args[0] : args;
    pcallFAll(vm_busListeners_live(), msg, arg);
    pcallFAll(vm_busListenersByMessage_live().get(msg), msg, arg);
  }

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

  public static Set<String> mcFields() {
    return staticFieldNames(mc());
  }

  public static boolean startsWithEndsWith(String s, String prefix, String suffix) {
    return startsWith(s, prefix) && endsWith(s, suffix);
  }

  public static Object getOptMC(String field) {
    return getOpt(mc(), field);
  }

  public static void removeFromMapCI_sync(Map<String, Object> map, String key) {
    if (map == null)
      return;
    synchronized (getMutex(map)) {
      for (String k : cloneList(keys(map))) if (eqic(key, k))
        map.remove(k);
    }
  }

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

  public static char stringToChar(String s) {
    if (l(s) != 1)
      throw fail("bad stringToChar: " + s);
    return firstChar(s);
  }

  public static Class run(String progID, String... args) {
    Class main = hotwire(progID);
    callMain(main, args);
    return main;
  }

  public static void restart() {
    Object j = getJavaX();
    call(j, "cleanRestart", get(j, "fullArgs"));
  }

  public static volatile boolean sleep_noSleep;

  public static 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);
    }
  }

  public static void sleep() {
    try {
      if (sleep_noSleep)
        throw fail("nosleep");
      print("Sleeping.");
      sleepQuietly();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static BigInteger bigint(String s) {
    return new BigInteger(s);
  }

  public static BigInteger bigint(long l) {
    return BigInteger.valueOf(l);
  }

  public static String hfulltag(String tag) {
    return hfulltag(tag, "");
  }

  public static String hfulltag(String tag, Object contents, Object... params) {
    return hopeningTag(tag, params) + str(contents) + "</" + tag + ">";
  }

  public static boolean isMD5(String s) {
    return l(s) == 32 && isLowerHexString(s);
  }

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

  public static boolean hasMethodNamed(Class c, String method) {
    while (c != null) {
      for (Method m : c.getDeclaredMethods()) if (m.getName().equals(method))
        return true;
      c = c.getSuperclass();
    }
    return false;
  }

  public static <A> Set<A> synchroHashSet() {
    return Collections.synchronizedSet(new HashSet<A>());
  }

  public static void closeAutoCloseables(Collection<AutoCloseable> l) {
    if (l != null)
      for (AutoCloseable c : l) {
        try {
          c.close();
        } catch (Throwable __e) {
          _handleException(__e);
        }
      }
  }

  public static <A> List<A> getAndClearList(Collection<A> l) {
    if (l == null)
      return emptyList();
    synchronized (collectionMutex(l)) {
      List<A> out = cloneList(l);
      l.clear();
      return out;
    }
  }

  public static Map<String, Set> vm_busListenersByMessage_live_cache;

  public static 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;
  }

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

  public static <A> Set<A> syncIdentityHashSet() {
    return (Set) synchronizedSet(identityHashSet());
  }

  public static <A> AutoCloseable tempAdd(final Collection<A> l, final A a) {
    if (l == null || l.contains(a))
      return null;
    l.add(a);
    return new AutoCloseable() {

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

      public void close() throws Exception {
        l.remove(a);
      }
    };
  }

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

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

  public static <A, B, C> C third(T3<A, B, C> t) {
    return t == null ? null : t.c;
  }

  public static <A> VF1<A> runnableToVF1(final Runnable r) {
    return r == null ? null : new VF1<A>() {

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

      public String toString() {
        return "r.run()";
      }
    };
  }

  public static betterCIComparator_C betterCIComparator_instance;

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

  public static class betterCIComparator_C implements Comparator<String> {

    public int compare(String s1, String s2) {
      if (s1 == null)
        return s2 == null ? 0 : -1;
      if (s2 == null)
        return 1;
      int n1 = s1.length();
      int n2 = s2.length();
      int min = Math.min(n1, n2);
      for (int i = 0; i < min; i++) {
        char c1 = s1.charAt(i);
        char c2 = s2.charAt(i);
        if (c1 != c2) {
          c1 = Character.toUpperCase(c1);
          c2 = Character.toUpperCase(c2);
          if (c1 != c2) {
            c1 = Character.toLowerCase(c1);
            c2 = Character.toLowerCase(c2);
            if (c1 != c2) {
              return c1 - c2;
            }
          }
        }
      }
      return n1 - n2;
    }
  }

  public static <A> List<A> takeFirst(List<A> l, int n) {
    return l(l) <= n ? l : newSubListOrSame(l, 0, n);
  }

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

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

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

  public static <A> List<A> takeFirst(int n, Iterable<A> i) {
    List l = new ArrayList();
    Iterator<A> it = i.iterator();
    for (int _repeat_1148 = 0; _repeat_1148 < n; _repeat_1148++) {
      if (it.hasNext())
        l.add(it.next());
      else
        break;
    }
    return l;
  }

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

  public static String fileNameEncode(String s) {
    StringBuilder buf = new StringBuilder();
    int n = l(s);
    for (int i = 0; i < n; i++) {
      char c = s.charAt(i);
      if (contains(fileNameEncode_safeChars, c))
        buf.append(c);
      else
        buf.append(urlencode(str(c)));
    }
    return str(buf);
  }

  public static boolean fileExists(String path) {
    return path != null && new File(path).exists();
  }

  public static boolean fileExists(File f) {
    return f != null && f.exists();
  }

  public static String f2s(File f) {
    return f == null ? null : f.getAbsolutePath();
  }

  public static String f2s(java.nio.file.Path p) {
    return p == null ? null : f2s(p.toFile());
  }

  public static void copyStream(InputStream in, OutputStream out) {
    try {
      byte[] buf = new byte[65536];
      while (true) {
        int n = in.read(buf);
        if (n <= 0)
          return;
        out.write(buf, 0, n);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static String fromUTF8(byte[] bytes) {
    return fromUtf8(bytes);
  }

  public static ThreadLocal<VF1<File>> checkFileNotTooBigToRead_tl = new ThreadLocal();

  public static void checkFileNotTooBigToRead(File f) {
    callF(checkFileNotTooBigToRead_tl.get(), f);
  }

  public static File remoteMechListMirrorsDir() {
    return javaxDataDir("Remote Mech Lists");
  }

  public static Lock downloadLock_lock = fairLock();

  public static Lock downloadLock() {
    return downloadLock_lock;
  }

  public static Object[] muricaCredentialsPlus(Object... params) {
    return concatArrays(muricaCredentials(), params);
  }

  public static String md5OrNull(String s) {
    return s == null ? null : md5(s);
  }

  public static String urlencode(String x) {
    try {
      return URLEncoder.encode(unnull(x), "UTF-8");
    } catch (UnsupportedEncodingException e) {
      throw new RuntimeException(e);
    }
  }

  public static String postPageSilently(String url, Object... params) {
    return doPostSilently(litmap(params), url);
  }

  public static Map jsonDecodeMap(String s) {
    Object o = jsonDecode(s);
    if (o instanceof List && empty((List) o))
      return new HashMap();
    if (o instanceof Map)
      return (Map) o;
    else
      throw fail("Not a JSON map: " + s);
  }

  public static File saveTextFile(String fileName, String contents) throws IOException {
    CriticalAction action = beginCriticalAction("Saving file " + fileName + " (" + l(contents) + " chars)");
    try {
      File file = new File(fileName);
      mkdirsForFile(file);
      String tempFileName = fileName + "_temp";
      File tempFile = new File(tempFileName);
      if (contents != null) {
        if (tempFile.exists())
          try {
            String saveName = tempFileName + ".saved." + now();
            copyFile(tempFile, new File(saveName));
          } catch (Throwable e) {
            printStackTrace(e);
          }
        FileOutputStream fileOutputStream = newFileOutputStream(tempFile.getPath());
        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, "UTF-8");
        PrintWriter printWriter = new PrintWriter(outputStreamWriter);
        printWriter.print(contents);
        printWriter.close();
      }
      if (file.exists() && !file.delete())
        throw new IOException("Can't delete " + fileName);
      if (contents != null)
        if (!tempFile.renameTo(file))
          throw new IOException("Can't rename " + tempFile + " to " + file);
      vmBus_send("wroteFile", file);
      return file;
    } finally {
      action.done();
    }
  }

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

  public static File remoteMechListMirrorMetaFile(String listName) {
    return javaxDataDir("Remote Mech Lists/" + uniqueFileNameUsingMD5_80_v2(upper(listName)) + ".meta");
  }

  public static <A, B> Map<A, B> getMultipleKeys(Map<A, B> map, A... keys) {
    Map<A, B> map2 = similarEmptyMap(map);
    if (map != null)
      for (A key : keys) map2.put(key, map.get(key));
    return map2;
  }

  public static File remoteMechListMirrorNameFile(String listName) {
    return javaxDataDir("Remote Mech Lists/" + uniqueFileNameUsingMD5_80_v2(upper(listName)) + ".name");
  }

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

  public static File localMechListFile(String listName) {
    return newFile(localMechListsDir(), uniqueFileNameUsingMD5_80_v2(listName) + ".text");
  }

  public static Object callAndMake_orDirect(String functionName, List args) {
    return callAndMake_orDirect(functionName, toObjectArray(args));
  }

  public static Object callAndMake_orDirect(String functionName, Object... args) {
    if (functionName == null)
      return null;
    if (hasMethod(mc(), functionName, args))
      return callMC(functionName, args);
    else
      return makeAndCall_cached(functionName, args);
  }

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

  public static List<String> splitAtDoubleArrow_bothDirections(List<String> tok) {
    List<String> l = splitAtDoubleArrow(tok);
    if (l(l) != 2)
      l = reversedList(splitAtDoubleLeftArrow(tok));
    return l;
  }

  public static List similarEmptyList(Collection m) {
    return new ArrayList();
  }

  public static String structure_addTokenMarkers(String s) {
    return join(structure_addTokenMarkers(javaTok(s)));
  }

  public static 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;
      String t = "";
      if (endsWithLetterOrDigit(tok.get(idx - 1)))
        t = " ";
      tok.set(idx, t + "m" + i + " " + tok.get(idx));
    }
    return tok;
  }

  public static String jreplace(String s, String in, String out) {
    return jreplace(s, in, out, null);
  }

  public static String jreplace(String s, String in, String out, Object condition) {
    List<String> tok = javaTok(s);
    return jreplace(tok, in, out, condition) ? join(tok) : s;
  }

  public static boolean jreplace(List<String> tok, String in, String out) {
    return jreplace(tok, in, out, false, true, null);
  }

  public static boolean jreplace(List<String> tok, String in, String out, Object condition) {
    return jreplace(tok, in, out, false, true, condition);
  }

  public static boolean jreplace(List<String> tok, String in, String out, boolean ignoreCase, boolean reTok, Object condition) {
    List<String> tokin = javaTok(in);
    jfind_preprocess(tokin);
    String[] toks = toStringArray(codeTokensOnly(tokin));
    boolean anyChange = false;
    for (int n = 0; n < 10000; n++) {
      int i = findCodeTokens(tok, 1, ignoreCase, toks, condition);
      if (i < 0)
        return anyChange;
      List<String> subList = tok.subList(i - 1, i + l(tokin) - 1);
      String expansion = jreplaceExpandRefs(out, subList);
      int end = i + l(tokin) - 2;
      clearAllTokens(tok, i, end);
      tok.set(i, expansion);
      if (reTok)
        reTok(tok, i, end);
      anyChange = true;
    }
    throw fail("woot? 10000! " + quote(in) + " => " + quote(out));
  }

  public static boolean jreplace_debug;

  public static Random defaultRandomGenerator() {
    return ThreadLocalRandom.current();
  }

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

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

  public static Set<String> staticFieldNames(Object o) {
    TreeSet<String> fields = new TreeSet();
    Class _c = _getClass(o);
    do {
      for (Field f : _c.getDeclaredFields()) if ((f.getModifiers() & Modifier.STATIC) != 0)
        fields.add(f.getName());
      _c = _c.getSuperclass();
    } while (_c != null);
    return fields;
  }

  public static Object getMutex(Object o) {
    return collectionMutex(o);
  }

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

  public static byte[] loadDataSnippetImpl(String snippetID) throws IOException {
    byte[] data;
    try {
      URL url = new URL(dataSnippetLink(snippetID));
      print("Loading library: " + hideCredentials(url));
      try {
        data = loadBinaryPage(url.openConnection());
      } catch (RuntimeException e) {
        data = null;
      }
      if (data == null || data.length == 0) {
        url = new URL("http://data.tinybrain.de/blobs/" + parseSnippetID(snippetID));
        print("Loading library: " + hideCredentials(url));
        data = loadBinaryPage(url.openConnection());
      }
      print("Bytes loaded: " + data.length);
    } catch (FileNotFoundException e) {
      throw new IOException("Binary snippet #" + snippetID + " not found or not public");
    }
    return data;
  }

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

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

  public static File loadDataSnippetToFile(String snippetID) {
    try {
      snippetID = fsI(snippetID);
      File f = DiskSnippetCache_file(parseSnippetID(snippetID));
      List<URL> urlsTried = new ArrayList();
      List<Throwable> errors = new ArrayList();
      try {
        URL url = addAndReturn(urlsTried, new URL(dataSnippetLink(snippetID)));
        print("Loading library: " + hideCredentials(url));
        try {
          loadBinaryPageToFile(openConnection(url), f);
          if (fileSize(f) == 0)
            throw fail();
        } catch (Throwable e) {
          errors.add(e);
          url = addAndReturn(urlsTried, new URL("http://data.tinybrain.de/blobs/" + psI(snippetID)));
          print("Trying other server: " + hideCredentials(url));
          loadBinaryPageToFile(openConnection(url), f);
          print("Got bytes: " + fileSize(f));
        }
        if (fileSize(f) == 0)
          throw fail();
        System.err.println("Bytes loaded: " + fileSize(f));
      } catch (Throwable e) {
        printStackTrace(e);
        errors.add(e);
        throw fail("Binary snippet " + snippetID + " not found or not public. URLs tried: " + allToString(urlsTried) + ", errors: " + allToString(errors));
      }
      return f;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static char firstChar(String s) {
    return s.charAt(0);
  }

  public static Class<?> hotwire(String src) {
    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;
    }
  }

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

  public static void callMain() {
    callMain(mc());
  }

  public static Object sleepQuietly_monitor = new Object();

  public static void sleepQuietly() {
    try {
      assertFalse(isAWTThread());
      synchronized (sleepQuietly_monitor) {
        sleepQuietly_monitor.wait();
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static String hopeningTag(String tag, Map params) {
    return hopeningTag(tag, mapToParams(params));
  }

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

  public static boolean isLowerHexString(String s) {
    for (int i = 0; i < l(s); i++) {
      char c = s.charAt(i);
      if (c >= '0' && c <= '9' || c >= 'a' && c <= 'f') {
      } else
        return false;
    }
    return true;
  }

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

  public static <A> Set<A> synchronizedSet(Set<A> set) {
    return Collections.synchronizedSet(set);
  }

  public static <A> Set<A> identityHashSet() {
    return Collections.newSetFromMap(new IdentityHashMap());
  }

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

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

  public static <A> List<A> newSubListOrSame(List<A> l, IntRange r) {
    return newSubListOrSame(l, r.start, r.end);
  }

  public static String fromUtf8(byte[] bytes) {
    try {
      return new String(bytes, "UTF-8");
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static File javaxDataDir_dir;

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

  public static File javaxDataDir(String... subs) {
    return newFile(javaxDataDir(), subs);
  }

  public static Object[] concatArrays(Object[]... arrays) {
    int l = 0;
    for (Object[] a : arrays) l += l(a);
    Object[] x = new Object[l];
    int i = 0;
    for (Object[] a : arrays) if (a != null) {
      System.arraycopy(a, 0, x, i, l(a));
      i += l(a);
    }
    return x;
  }

  public static Object[] muricaCredentials() {
    String pass = muricaPassword();
    return nempty(pass) ? new Object[] { "_pass", pass } : new Object[0];
  }

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

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

  public static boolean jsonDecode_useOrderedMaps = true;

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

      public int i = 1;

      public Object parse() {
        String t = tok.get(i);
        if (t.startsWith("\"")) {
          String s = unquote(tok.get(i));
          i += 2;
          return s;
        }
        if (t.equals("{"))
          return parseMap();
        if (t.equals("["))
          return this.parseList();
        if (t.equals("null")) {
          i += 2;
          return null;
        }
        if (t.equals("false")) {
          i += 2;
          return false;
        }
        if (t.equals("true")) {
          i += 2;
          return true;
        }
        boolean minus = false;
        if (t.equals("-")) {
          minus = true;
          i += 2;
          t = get(tok, i);
        }
        if (isInteger(t)) {
          i += 2;
          if (eq(get(tok, i), ".")) {
            String x = t + "." + get(tok, i + 2);
            i += 4;
            double d = parseDouble(x);
            if (minus)
              d = -d;
            return d;
          } else {
            long l = parseLong(t);
            if (minus)
              l = -l;
            return l != (int) l ? new Long(l) : new Integer((int) l);
          }
        }
        throw new RuntimeException("Unknown token " + (i + 1) + ": " + t + ": " + text);
      }

      public Object parseList() {
        consume("[");
        List list = new ArrayList();
        while (!tok.get(i).equals("]")) {
          list.add(parse());
          if (tok.get(i).equals(","))
            i += 2;
        }
        consume("]");
        return list;
      }

      public Object parseMap() {
        consume("{");
        Map map = jsonDecode_useOrderedMaps ? new LinkedHashMap() : new TreeMap();
        while (!tok.get(i).equals("}")) {
          String key = unquote(tok.get(i));
          i += 2;
          consume(":");
          Object value = parse();
          map.put(key, value);
          if (tok.get(i).equals(","))
            i += 2;
        }
        consume("}");
        return map;
      }

      public void consume(String s) {
        if (!tok.get(i).equals(s)) {
          String prevToken = i - 2 >= 0 ? tok.get(i - 2) : "";
          String nextTokens = join(tok.subList(i, Math.min(i + 4, tok.size())));
          throw fail(quote(s) + " expected: " + prevToken + " " + nextTokens + " (" + i + "/" + tok.size() + ")");
        }
        i += 2;
      }
    }
    return new Y().parse();
  }

  public static List<CriticalAction> beginCriticalAction_inFlight = synchroList();

  public static class CriticalAction {

    public String description;

    public CriticalAction() {
    }

    public CriticalAction(String description) {
      this.description = description;
    }

    public void done() {
      beginCriticalAction_inFlight.remove(this);
    }
  }

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

  public static void cleanMeUp_beginCriticalAction() {
    int n = 0;
    while (nempty(beginCriticalAction_inFlight)) {
      int m = l(beginCriticalAction_inFlight);
      if (m != n) {
        n = m;
        try {
          print("Waiting for " + n2(n, "critical actions") + ": " + join(", ", collect(beginCriticalAction_inFlight, "description")));
        } catch (Throwable __e) {
          _handleException(__e);
        }
      }
      sleepInCleanUp(10);
    }
  }

  public static 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;
  }

  public static long now_virtualTime;

  public static long now() {
    return now_virtualTime != 0 ? now_virtualTime : System.currentTimeMillis();
  }

  public static void copyFile(File src, File dest) {
    try {
      FileInputStream inputStream = new FileInputStream(src.getPath());
      FileOutputStream outputStream = newFileOutputStream(dest.getPath());
      try {
        copyStream(inputStream, outputStream);
        inputStream.close();
      } finally {
        outputStream.close();
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

  public static FileOutputStream newFileOutputStream(File path, boolean append) throws IOException {
    return newFileOutputStream(path.getPath(), append);
  }

  public static FileOutputStream newFileOutputStream(String path, boolean append) throws IOException {
    mkdirsForFile(path);
    FileOutputStream f = new FileOutputStream(path, append);
    _registerIO(f, path, true);
    return f;
  }

  public static File localMechListsDir() {
    return javaxDataDir("Mech Lists");
  }

  public static boolean hasMethod(Object o, String method, Object... args) {
    return findMethod(o, method, args) != null;
  }

  public static ThreadLocal makeAndCall_initChild = new ThreadLocal();

  public static Object makeAndCall_cached(String functionName, Object... args) {
    Class c = loadFunctions_cached(functionName);
    AutoCloseable closer = (AutoCloseable) (callF(makeAndCall_initChild.get(), c));
    AutoCloseable __1252 = closer;
    try {
      return preciseCall(c, functionName, args);
    } finally {
      _close(__1252);
    }
  }

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

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

  public static String jreplaceExpandRefs(String s, List<String> tokref) {
    List<String> tok = javaTok(s);
    for (int i = 1; i < l(tok); i += 2) {
      if (tok.get(i).startsWith("$") && isInteger(tok.get(i).substring(1))) {
        String x = tokref.get(-1 + parseInt(tok.get(i).substring(1)) * 2);
        tok.set(i, x);
      }
    }
    return join(tok);
  }

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

  public static void clearAllTokens(List<String> tok, int i, int j) {
    for (; i < j; i++) tok.set(i, "");
  }

  public static List<String> reTok(List<String> tok) {
    replaceCollection(tok, javaTok(tok));
    return tok;
  }

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

  public static List<String> reTok(List<String> tok, int i, int j) {
    i = i & ~1;
    j = j | 1;
    List<String> t = javaTok(join(subList(tok, i, j)));
    replaceListPart(tok, i, j, t);
    return tok;
  }

  public static File getGlobalCache() {
    File file = new File(javaxCachesDir(), "Binary Snippets");
    file.mkdirs();
    return file;
  }

  public static byte[] saveBinaryFile(String fileName, byte[] contents) {
    try {
      File file = new File(fileName);
      File parentFile = file.getParentFile();
      if (parentFile != null)
        parentFile.mkdirs();
      String tempFileName = fileName + "_temp";
      FileOutputStream fileOutputStream = newFileOutputStream(tempFileName);
      fileOutputStream.write(contents);
      fileOutputStream.close();
      if (file.exists() && !file.delete())
        throw new IOException("Can't delete " + fileName);
      if (!new File(tempFileName).renameTo(file))
        throw new IOException("Can't rename " + tempFileName + " to " + fileName);
      vmBus_send("wroteFile", file);
      return contents;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static byte[] saveBinaryFile(File fileName, byte[] contents) {
    return saveBinaryFile(fileName.getPath(), contents);
  }

  public static String dataSnippetLink(String snippetID) {
    long id = parseSnippetID(snippetID);
    if (id >= 1100000 && id < 1200000)
      return imageServerURL() + id;
    if (id >= 1400000 && id < 1500000)
      return "http://butter.botcompany.de:8080/files/" + id + "?_pass=" + muricaPassword();
    if (id >= 1200000 && id < 1300000) {
      String pw = muricaPassword();
      if (empty(pw))
        throw fail("Please set 'murica password by running #1008829");
      return "http://butter.botcompany.de:8080/1008823/raw/" + id + "?_pass=" + pw;
    } else
      return "http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_" + id + "&contentType=application/binary";
  }

  public static ThreadLocal<Map<String, List<String>>> loadBinaryPage_responseHeaders = new ThreadLocal();

  public static ThreadLocal<Map<String, String>> loadBinaryPage_extraHeaders = new ThreadLocal();

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

  public static byte[] loadBinaryPage(URLConnection con) {
    try {
      Map<String, String> extraHeaders = getAndClearThreadLocal(loadBinaryPage_extraHeaders);
      setHeaders(con);
      for (String key : keys(extraHeaders)) con.setRequestProperty(key, extraHeaders.get(key));
      return loadBinaryPage_noHeaders(con);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static byte[] loadBinaryPage_noHeaders(URLConnection con) {
    try {
      ByteArrayOutputStream buf = new ByteArrayOutputStream();
      InputStream inputStream = con.getInputStream();
      loadBinaryPage_responseHeaders.set(con.getHeaderFields());
      long len = 0;
      try {
        len = con.getContentLength();
      } 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 long getFileSize(String path) {
    return path == null ? 0 : new File(path).length();
  }

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

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

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

  public static <B, A extends B> A addAndReturn(Collection<B> c, A a) {
    if (c != null)
      c.add(a);
    return a;
  }

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

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

  public static void loadBinaryPageToFile_noHeaders(URLConnection con, File file) {
    try {
      File ftemp = new File(f2s(file) + "_temp");
      FileOutputStream buf = newFileOutputStream(mkdirsFor(ftemp));
      try {
        InputStream inputStream = con.getInputStream();
        long len = 0;
        try {
          len = con.getContentLength();
        } 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);
    }
  }

  public static URLConnection openConnection(URL url) {
    try {
      ping();
      callOpt(javax(), "recordOpenURLConnection", str(url));
      return url.openConnection();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  public static List<String> allToString(Collection c) {
    List<String> l = new ArrayList();
    for (Object o : unnull(c)) l.add(str(o));
    return l;
  }

  public static List<String> allToString(Object[] c) {
    List<String> l = new ArrayList();
    for (Object o : unnull(c)) l.add(str(o));
    return l;
  }

  public static void assertFalse(Object o) {
    if (!(eq(o, false)))
      throw fail(str(o));
  }

  public static boolean assertFalse(boolean b) {
    if (b)
      throw fail("oops");
    return b;
  }

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

  public static boolean _inCore() {
    return false;
  }

  public static List hotwire_copyOver_after = synchroList();

  public static 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);
  }

  public static Object[] mapToParams(Map map) {
    return mapToObjectArray(map);
  }

  public static Object html_valueLessParam_cache;

  public static Object html_valueLessParam() {
    if (html_valueLessParam_cache == null)
      html_valueLessParam_cache = html_valueLessParam_load();
    return html_valueLessParam_cache;
  }

  public static Object html_valueLessParam_load() {
    return new Object();
  }

  public static String htmlQuote(String s) {
    return "\"" + htmlencode_forParams(s) + "\"";
  }

  public static String _userHome;

  public static String userHome() {
    if (_userHome == null) {
      if (isAndroid())
        _userHome = "/storage/sdcard0/";
      else
        _userHome = System.getProperty("user.home");
    }
    return _userHome;
  }

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

  public static volatile boolean muricaPassword_pretendNotAuthed;

  public static String muricaPassword() {
    if (muricaPassword_pretendNotAuthed)
      return null;
    return trim(loadTextFile(muricaPasswordFile()));
  }

  public static String makePostData(Map<Object, Object> map) {
    List<String> l = new ArrayList();
    for (Map.Entry<Object, Object> e : map.entrySet()) {
      String key = (String) (e.getKey());
      Object val = e.getValue();
      if (val != null) {
        String value = str(val);
        l.add(urlencode(key) + "=" + urlencode((value)));
      }
    }
    return join("&", l);
  }

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

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

  public static ThreadLocal<Long> doPost_timeout = new ThreadLocal();

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

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

  public static String doPost(String urlParameters, URLConnection conn, URL url) {
    try {
      boolean silently = isTrue(optParam(doPost_silently));
      Long timeout = optParam(doPost_timeout);
      setHeaders(conn);
      int l = lUtf8(urlParameters);
      if (!silently)
        print("Sending POST request: " + hideCredentials(url) + " (" + l + " bytes)");
      if (timeout != null)
        setURLConnectionTimeouts(conn, timeout);
      ((HttpURLConnection) conn).setRequestMethod("POST");
      conn.setDoOutput(true);
      conn.setRequestProperty("Content-Length", str(l));
      OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
      writer.write(urlParameters);
      writer.flush();
      loadPage_charset.set("UTF-8");
      String contents = loadPage(conn, url, false);
      writer.close();
      return contents;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static List<String> jsonTok(String s) {
    List<String> tok = new ArrayList();
    int l = l(s);
    int i = 0;
    while (i < l) {
      int j = i;
      char c;
      String cc;
      while (j < l) {
        c = s.charAt(j);
        cc = s.substring(j, Math.min(j + 2, l));
        if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
          ++j;
        else if (cc.equals("/*")) {
          do ++j; while (j < l && !s.substring(j, Math.min(j + 2, l)).equals("*/"));
          j = Math.min(j + 2, l);
        } else if (cc.equals("//")) {
          do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
        } else
          break;
      }
      tok.add(s.substring(i, j));
      i = j;
      if (i >= l)
        break;
      c = s.charAt(i);
      if (c == '\'' || c == '"') {
        char opener = c;
        ++j;
        while (j < l) {
          if (s.charAt(j) == opener) {
            ++j;
            break;
          } else if (s.charAt(j) == '\\' && j + 1 < l)
            j += 2;
          else
            ++j;
        }
      } else if (Character.isLetter(c))
        do ++j; while (j < l && Character.isLetter(s.charAt(j)));
      else if (Character.isDigit(c))
        do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      else
        ++j;
      tok.add(s.substring(i, j));
      i = j;
    }
    if ((tok.size() % 2) == 0)
      tok.add("");
    return tok;
  }

  public static void sleepInCleanUp(long ms) {
    try {
      if (ms < 0)
        return;
      Thread.sleep(ms);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  public static Method findMethod_static(Class c, String method, Object[] args, boolean debug) {
    Class _c = c;
    while (c != null) {
      for (Method m : c.getDeclaredMethods()) {
        if (debug)
          System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");
        ;
        if (!m.getName().equals(method)) {
          if (debug)
            System.out.println("Method name mismatch: " + method);
          continue;
        }
        if ((m.getModifiers() & Modifier.STATIC) == 0 || !findMethod_checkArgs(m, args, debug))
          continue;
        return m;
      }
      c = c.getSuperclass();
    }
    return null;
  }

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

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

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

  public static Lock loadFunctions_cached_lock = lock();

  public static boolean loadFunctions_preferDiskCache;

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

  public static Class loadFunctions_cached(Collection<String> functions) {
    TreeSet<String> functionSet = new TreeSet<String>(functions);
    Lock __1311 = loadFunctions_cached_lock;
    lock(__1311);
    try {
      Class c = loadFunctions_cache.get(functionSet);
      if (c != null)
        return c;
      String cached = getTranspiledStandardFunctionsIfCached(functionSet);
      String transpilation = null;
      if (cached != null && (loadFunctions_preferDiskCache || standardFunctionsCacheUpToDate(functionSet)))
        transpilation = cached;
      if (transpilation != null) {
        print("Loading " + joinWithPlus(functionSet));
        c = veryQuickJava_finish(transpilation, emptyList());
      }
      if (c == null)
        c = loadFunctions(functionSet);
      loadFunctions_cache.put(functionSet, c);
      assertNotNull(loadFunctions_cache.get(functionSet));
      return c;
    } finally {
      unlock(__1311);
    }
  }

  public static boolean preciseCall_debug;

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

  public static void replaceListPart(List l, int i, int j, List l2) {
    int j2 = i + l(l2);
    if (j2 == j) {
      copyListPart(l2, 0, l, i, l(l2));
      return;
    }
    l.subList(i, j).clear();
    l.addAll(i, l2);
  }

  public static File javaxCachesDir_dir;

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

  public static File javaxCachesDir(String sub) {
    return newFile(javaxCachesDir(), sub);
  }

  public static String imageServerURL() {
    return or2(trim(loadTextFile(javaxDataDir("image-server-url.txt"))), "http://botcompany.de/images/raw/");
  }

  public static int loadPage_defaultTimeout = 60000;

  public static ThreadLocal<String> loadPage_charset = new ThreadLocal();

  public static boolean loadPage_allowGzip = true, loadPage_debug;

  public static boolean loadPage_anonymous;

  public static int loadPage_verboseness = 100000;

  public static int loadPage_retries = 1;

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

  public static volatile int loadPage_forcedTimeout;

  public static ThreadLocal<Integer> loadPage_forcedTimeout_byThread = new ThreadLocal();

  public static ThreadLocal<Map<String, List<String>>> loadPage_responseHeaders = new ThreadLocal();

  public static ThreadLocal<Map<String, String>> loadPage_extraHeaders = new ThreadLocal();

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

  public static String loadPageSilently(URL url) {
    try {
      if (url.getProtocol().equals("https"))
        disableCertificateValidation();
      if (!networkAllowanceTest(str(url)))
        throw fail("Not allowed: " + url);
      IOException e = null;
      for (int tries = 0; tries < loadPage_retries; tries++) try {
        URLConnection con = loadPage_openConnection(url);
        return loadPage(con, url);
      } catch (IOException _e) {
        e = _e;
        if (loadPageThroughProxy_enabled) {
          print("Trying proxy because of: " + e);
          try {
            return loadPageThroughProxy(str(url));
          } catch (Throwable e2) {
            print("  " + exceptionToStringShort(e2));
          }
        } else if (loadPage_debug)
          print(exceptionToStringShort(e));
        if (tries < loadPage_retries - 1)
          sleepSeconds(1);
      }
      throw e;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

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

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

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

  public static String loadPage(URLConnection con, URL url, boolean addHeaders) throws IOException {
    Map<String, String> extraHeaders = getAndClearThreadLocal(loadPage_extraHeaders);
    if (addHeaders)
      try {
        if (!loadPage_anonymous)
          setHeaders(con);
        if (loadPage_allowGzip)
          con.setRequestProperty("Accept-Encoding", "gzip");
        con.setRequestProperty("X-No-Cookies", "1");
        for (String key : keys(extraHeaders)) con.setRequestProperty(key, extraHeaders.get(key));
      } catch (Throwable e) {
      }
    vm_generalSubMap("URLConnection per thread").put(currentThread(), con);
    loadPage_responseHeaders.set(con.getHeaderFields());
    InputStream in = null;
    try {
      in = con.getInputStream();
      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;
      }
      StringBuilder buf = new StringBuilder();
      int n = 0;
      while (true) {
        int ch = r.read();
        if (ch < 0)
          break;
        buf.append((char) ch);
        ++n;
        if ((n % loadPage_verboseness) == 0)
          print("  " + n + " chars read");
      }
      return buf.toString();
    } finally {
      if (loadPage_debug)
        print("loadPage done");
      vm_generalSubMap("URLConnection per thread").remove(currentThread());
      if (in != null)
        in.close();
    }
  }

  public static String loadPage_guessCharset(String contentType) {
    Matcher m = regexpMatcher("text/[a-z]+;\\s*charset=([^\\s]+)\\s*", contentType);
    String match = m.matches() ? m.group(1) : null;
    if (loadPage_debug)
      print("loadPage: contentType=" + contentType + ", match: " + match);
    return or(match, "UTF-8");
  }

  public static URLConnection loadPage_openConnection(URL url) {
    URLConnection con = openConnection(url);
    int timeout = toInt(loadPage_forcedTimeout_byThread.get());
    if (timeout == 0)
      timeout = loadPage_forcedTimeout;
    if (timeout != 0)
      setURLConnectionTimeouts(con, loadPage_forcedTimeout);
    else
      setURLConnectionDefaultTimeouts(con, loadPage_defaultTimeout);
    return con;
  }

  public static <A> A getAndClearThreadLocal(ThreadLocal<A> tl) {
    A a = tl.get();
    tl.set(null);
    return a;
  }

  public static void setHeaders(URLConnection con) throws IOException {
    String computerID = getComputerID_quick();
    if (computerID != null)
      try {
        con.setRequestProperty("X-ComputerID", computerID);
        con.setRequestProperty("X-OS", System.getProperty("os.name") + " " + System.getProperty("os.version"));
      } catch (Throwable e) {
      }
  }

  public static <A> A println(A a) {
    return print(a);
  }

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

  public static void copyStreamWithPrints(InputStream in, OutputStream out, String pat) {
    try {
      byte[] buf = new byte[65536];
      int total = 0;
      while (true) {
        int n = in.read(buf);
        if (n <= 0)
          return;
        out.write(buf, 0, n);
        if ((total + n) / 100000 > total / 100000)
          print(pat.replace("{*}", str(roundDownTo(total, 100000))));
        total += n;
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static void renameFile_assertTrue(File a, File b) {
    try {
      if (!a.exists())
        throw fail("Source file not found: " + f2s(a));
      if (b.exists())
        throw fail("Target file exists: " + f2s(b));
      mkdirsForFile(b);
      if (!a.renameTo(b))
        throw fail("Can't rename " + f2s(a) + " to " + f2s(b));
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

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

  public static Object mainBot;

  public static Object getMainBot() {
    return mainBot;
  }

  public static Object[] mapToObjectArray(Map map) {
    List l = new ArrayList();
    for (Object o : keys(map)) {
      l.add(o);
      l.add(map.get(o));
    }
    return toObjectArray(l);
  }

  public static String htmlencode_forParams(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 == '>') {
        out.append("&#");
        out.append((int) c);
        out.append(';');
      } else
        out.append(c);
    }
    return out.toString();
  }

  public static File userDir() {
    return new File(userHome());
  }

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

  public static File muricaPasswordFile() {
    return new File(javaxSecretDir(), "murica/muricaPasswordFile");
  }

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

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

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

  public static <A> A optParam(Object[] opt, String name) {
    return optParam(opt, name, null);
  }

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

  public static URLConnection setURLConnectionTimeouts(URLConnection con, long timeout) {
    con.setConnectTimeout(toInt(timeout));
    con.setReadTimeout(toInt(timeout));
    if (con.getConnectTimeout() != timeout || con.getReadTimeout() != timeout)
      print("Warning: Timeouts not set by JDK.");
    return con;
  }

  public static String getTranspiledStandardFunctionsIfCached(TreeSet<String> functionSet) {
    try {
      File f = transpiledStandardFunctions_file(functionSet);
      return loadTextFile(f);
    } catch (Throwable __e) {
      return null;
    }
  }

  public static boolean standardFunctionsCacheUpToDate(TreeSet<String> functionSet) {
    File f = transpiledStandardFunctions_file(functionSet);
    long date = recommendedTranspilationDateForStandardFunctions(functionSet);
    return date != 0 && f.lastModified() >= date;
  }

  public static String joinWithPlus(Collection<String> c) {
    return join("+", c);
  }

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

  public static Class veryQuickJava_finish(String src, List<String> libs) {
    libs = cloneList(libs);
    src = findTranslators2(src, libs);
    String dehlibs = join(" ", libs);
    File bytecode = null;
    bytecode = javaCompile_overInternalBot(src, dehlibs);
    return hotwireCore(concatLists(ll(bytecode), loadLibraries(libs)));
  }

  public static boolean loadFunctions_debug;

  public static Object loadFunctions_veryQuickJava;

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

  public static Class loadFunctions(Collection<String> functions) {
    print("Compiling " + joinWithPlus(functions));
    TreeSet<String> functionSet = new TreeSet<String>(functions);
    StringBuilder buf = new StringBuilder();
    for (String s : functionSet) buf.append("please include function " + assertIdentifier(s) + ".\n");
    long time = sysNow();
    Class c;
    if (loadFunctions_veryQuickJava != null)
      c = (Class) callF(loadFunctions_veryQuickJava, str(buf));
    else {
      veryQuickJava_transpiled.set("");
      c = veryQuickJava(str(buf));
      saveTranspiledStandardFunctions(functionSet, getAndClearThreadLocal(veryQuickJava_transpiled));
    }
    if (loadFunctions_debug)
      done2_always(time, "loadFunctions: " + join(" ", functions));
    return c;
  }

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

  public static Object callOpt_cached(Object o, String methodName, Object... args) {
    try {
      if (o == null)
        return null;
      if (o instanceof Class) {
        Class c = (Class) o;
        _MethodCache cache = callOpt_getCache(c);
        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);
    }
  }

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

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

  public static int methodApplicabilityScore(Method m, Object[] args) {
    Class<?>[] types = m.getParameterTypes();
    if (types.length != args.length)
      return Integer.MAX_VALUE;
    int score = 0;
    for (int i = 0; i < types.length; i++) {
      Object a = args[i];
      Class c = types[i];
      if (a == null)
        ++score;
      else if (c == a.getClass()) {
      } else if (isInstanceX(c, a))
        ++score;
      else
        return Integer.MAX_VALUE;
    }
    return score;
  }

  public static String methodSignature(String name, Object[] args) {
    StringBuilder buf = new StringBuilder(name + "(");
    for (int i = 0; i < l(args); i++) {
      if (i != 0)
        buf.append(", ");
      buf.append(getClassName(args[i]));
    }
    buf.append(")");
    return str(buf);
  }

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

  public static RuntimeException todo() {
    throw new RuntimeException("TODO");
  }

  public static RuntimeException todo(String msg) {
    throw new RuntimeException("TODO: " + msg);
  }

  public static <A, B extends A> void copyListPart(List<B> a, int i1, List<A> b, int i2, int n) {
    if (a == null || b == null)
      return;
    for (int i = 0; i < n; i++) b.set(i2 + i, a.get(i1 + i));
  }

  public static volatile boolean disableCertificateValidation_attempted;

  public static void disableCertificateValidation() {
    try {
      if (disableCertificateValidation_attempted)
        return;
      disableCertificateValidation_attempted = true;
      try {
        TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {

          public X509Certificate[] getAcceptedIssuers() {
            return new X509Certificate[0];
          }

          public void checkClientTrusted(X509Certificate[] certs, String authType) {
          }

          public void checkServerTrusted(X509Certificate[] certs, String authType) {
          }
        } };
        HostnameVerifier hv = new HostnameVerifier() {

          public boolean verify(String hostname, SSLSession session) {
            return true;
          }
        };
        SSLContext sc = SSLContext.getInstance("SSL");
        sc.init(null, trustAllCerts, new SecureRandom());
        HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
        HttpsURLConnection.setDefaultHostnameVerifier(hv);
      } catch (Throwable __e) {
        _handleException(__e);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static boolean networkAllowanceTest(String url) {
    return isAllowed("networkAllowanceTest", url);
  }

  public static final boolean loadPageThroughProxy_enabled = false;

  public static String loadPageThroughProxy(String url) {
    return null;
  }

  public static void sleepSeconds(double s) {
    if (s > 0)
      sleep(round(s * 1000));
  }

  public static String tb_mainServer_default = "http://tinybrain.de:8080";

  public static Object tb_mainServer_override;

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

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

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

  public static <A> A printWithTime(A a) {
    print(hmsWithColons() + ": " + a);
    return a;
  }

  public static Map vm_generalSubMap(Object name) {
    synchronized (get(javax(), "generalMap")) {
      Map map = (Map) (vm_generalMap_get(name));
      if (map == null)
        vm_generalMap_put(name, map = synchroMap());
      return map;
    }
  }

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

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

  public static byte[] utf8(String s) {
    return toUtf8(s);
  }

  public static Matcher regexpMatcher(String pat, String s) {
    return compileRegexp(pat).matcher(unnull(s));
  }

  public static URLConnection setURLConnectionDefaultTimeouts(URLConnection con, long timeout) {
    if (con.getConnectTimeout() == 0) {
      con.setConnectTimeout(toInt(timeout));
      if (con.getConnectTimeout() != timeout)
        print("Warning: URL connect timeout not set by JDK.");
    }
    if (con.getReadTimeout() == 0) {
      con.setReadTimeout(toInt(timeout));
      if (con.getReadTimeout() != timeout)
        print("Warning: URL read timeout not set by JDK.");
    }
    return con;
  }

  public static String getComputerID_quick() {
    return computerID();
  }

  public static int roundDownTo(int x, int n) {
    return x / n * n;
  }

  public static long roundDownTo(long x, long n) {
    return x / n * n;
  }

  public static File javaxSecretDir_dir;

  public static File javaxSecretDir() {
    return javaxSecretDir_dir != null ? javaxSecretDir_dir : new File(userHome(), "JavaX-Secret");
  }

  public static File javaxSecretDir(String sub) {
    return newFile(javaxSecretDir(), sub);
  }

  public static <A> A optPar(ThreadLocal<A> tl, A defaultValue) {
    A a = tl.get();
    if (a != null) {
      tl.set(null);
      return a;
    }
    return defaultValue;
  }

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

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

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

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

  public static boolean even(int i) {
    return (i & 1) == 0;
  }

  public static boolean even(long i) {
    return (i & 1) == 0;
  }

  public static File transpiledStandardFunctions_file(TreeSet<String> functionSet) {
    String name = uniqueFileNameUsingMD5_80_v2(join("+", functionSet));
    File dir = javaxCachesDir("Transpiled Standard Functions");
    saveTextFileUnlessExists(newFile(dir, name + ".functions"), lines(functionSet));
    return newFile(dir, name + ".java");
  }

  public static long recommendedTranspilationDateForStandardFunctions(Collection<String> sfNames) {
    long date = 0;
    for (String name : sfNames) {
      long d = recommendedTranspilationDateForStandardFunction(name);
      if (d == 0)
        return 0;
      date = max(date, d);
    }
    return date;
  }

  public static String findTranslators2(String src, List<String> libsOut) {
    return join(findTranslators2(javaTok(src), libsOut));
  }

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

  public static File javaCompile_overInternalBot(String src) {
    return javaCompile_overInternalBot(src, "");
  }

  public static synchronized File javaCompile_overInternalBot(String src, String dehlibs) {
    return CompilerBot.compile(src, dehlibs);
  }

  public static Class hotwireCore(List<File> files) {
    try {
      JavaXClassLoader classLoader = hotwire_makeClassLoader(files);
      Class<?> theClass = classLoader.loadClass("main");
      setOpt(theClass, "__javax", getJavaX());
      if (getOpt(theClass, "programID") == null)
        setOpt(theClass, "programID", "#3999999");
      if (!_inCore())
        hotwire_copyOver(theClass);
      return theClass;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static List<File> loadLibraries(List<String> snippetIDs) {
    return map("loadLibrary", snippetIDs);
  }

  public static Class veryQuickJava(CharSequence mainJava) {
    return veryQuickJava3(str(mainJava));
  }

  public static void saveTranspiledStandardFunctions(TreeSet<String> functionSet, String transpiledSrc) {
    try {
      saveTextFile(transpiledStandardFunctions_file(functionSet), transpiledSrc);
    } catch (Throwable __e) {
      _handleException(__e);
    }
  }

  public static boolean methodIsStatic(Method m) {
    return (m.getModifiers() & Modifier.STATIC) != 0;
  }

  public static Throwable getExceptionCause(Throwable e) {
    Throwable c = e.getCause();
    return c != null ? c : e;
  }

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

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

  public static volatile Object isAllowed_function;

  public static volatile boolean isAllowed_all = true;

  public static 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));
  }

  public static long round(double d) {
    return Math.round(d);
  }

  public static File getProgramFile(String progID, String fileName) {
    if (new File(fileName).isAbsolute())
      return new File(fileName);
    return new File(getProgramDir(progID), fileName);
  }

  public static File getProgramFile(String fileName) {
    return getProgramFile(getProgramID(), fileName);
  }

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

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

  public static Object vm_generalMap_put(Object key, Object value) {
    return mapPutOrRemove(vm_generalMap(), key, value);
  }

  public static Map<String, java.util.regex.Pattern> compileRegexp_cache = syncMRUCache(10);

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

  public static String _computerID;

  public static Lock computerID_lock = lock();

  public static String computerID() {
    if (_computerID == null) {
      Lock __1443 = computerID_lock;
      lock(__1443);
      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(__1443);
      }
    }
    return _computerID;
  }

  public static void saveTextFileUnlessExists(File f, String contents) {
    if (f != null && !f.exists())
      saveTextFile(f, contents);
  }

  public static String lines(Collection lines) {
    return fromLines(lines);
  }

  public static List<String> lines(String s) {
    return toLines(s);
  }

  public static long recommendedTranspilationDateForStandardFunction(String sfName) {
    return toLong(mechMap("Recommended SF Transpilation Date").get(sfName));
  }

  public static <A> boolean setAdd(Collection<A> c, A a) {
    if (c == null || c.contains(a))
      return false;
    c.add(a);
    return true;
  }

  public static void clearTokens(List<String> tok) {
    clearAllTokens(tok);
  }

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

  public static void clearTokens(List<String> tok, IntRange r) {
    clearAllTokens(tok, r.start, r.end);
  }

  public static JavaXClassLoader hotwire_makeClassLoader(List<File> files) {
    return new JavaXClassLoader(null, files);
  }

  public static boolean veryQuickJava_silent = true;

  public static boolean veryQuickJava_useCompilerBot = true;

  public static ThreadLocal<String> veryQuickJava_transpiled = new ThreadLocal();

  public static Object veryQuickJava3_cacheFunction;

  public static Class veryQuickJava3(String mainJava) {
    return veryQuickJava3(mainJava, emptyList());
  }

  public static Class veryQuickJava3(String mainJava, List<String> libs) {
    Class c = (Class) (callF(veryQuickJava3_cacheFunction, mainJava, libs));
    if (c != null)
      return c;
    transpileRaw_silent = veryQuickJava_silent;
    String src = transpileRaw(mainJava);
    if (veryQuickJava_transpiled.get() != null)
      veryQuickJava_transpiled.set(src);
    return veryQuickJava_finish(src, libs);
  }

  public static List<String> getClassNames(Collection l) {
    List<String> out = new ArrayList();
    if (l != null)
      for (Object o : l) out.add(o == null ? null : getClassName(o));
    return out;
  }

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

  public static File getProgramDir(String snippetID) {
    return programDir(snippetID);
  }

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

  public static <A, B> Map<A, B> syncMRUCache(int size) {
    return synchroMap(new MRUCache(size));
  }

  public static File computerIDFile() {
    return javaxDataDir("Basic Info/computer-id.txt");
  }

  public static long toLong(Object o) {
    if (o instanceof Number)
      return ((Number) o).longValue();
    if (o instanceof String)
      return parseLong((String) o);
    return 0;
  }

  public static Map<String, String> mechMap(String listName) {
    return mechMapCI(listName);
  }

  public static boolean transpileRaw_silent = true;

  public static boolean transpileRaw_useDiskCache;

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

  public static File programDir_mine;

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

  public static 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;
  }

  public static File programDir(String snippetID, String subPath) {
    return new File(programDir(snippetID), subPath);
  }

  public static Map<String, Pair<String, Map<String, String>>> mechMapCI_cache = synchroMap();

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

  public static Object dm_transpiler() {
    return dm_getModule(dm_requireModule("#1017065/Transpiler"));
  }

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

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

  public static volatile String caseID_caseID;

  public static String caseID() {
    return caseID_caseID;
  }

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

  public static Map<String, String> parseDoubleArrowMapCI(List<String> l) {
    return parseDoubleArrowMap((Map) ciMap(), l);
  }

  public static <B> TreeMap<String, B> asCIMap(Map<String, B> map) {
    return asCaseInsensitiveMap(map);
  }

  public static Object dm_getModule(Object moduleOrID) {
    if (eq(moduleOrID, ""))
      return null;
    if (isStringOrIntOrLong(moduleOrID))
      return dm_callOS("getDynModuleByID", str(moduleOrID));
    return dm_resolveModule(moduleOrID);
  }

  public static Map<String, String> parseDoubleLeftArrowMapCI(List<String> l) {
    return parseDoubleLeftArrowMap((Map) ciMap(), l);
  }

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

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

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

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

  public static Map<String, String> parseDoubleLeftArrowMap(Map<String, String> map, List<String> l) {
    for (String s : l) {
      List<String> x = splitAtDoubleLeftArrow(s);
      if (l(x) == 2)
        map.put(second(x), first(x));
    }
    return map;
  }

  public static boolean isCIMap(Map m) {
    return m instanceof TreeMap && ((TreeMap) m).comparator() == caseInsensitiveComparator();
  }

  public static Object dm_os() {
    return creator();
  }

  public static final class _MethodCache {

    public final Class c;

    public final HashMap<String, List<Method>> cache = new HashMap();

    public _MethodCache(Class c) {
      this.c = c;
      _init();
    }

    public void _init() {
      Class _c = c;
      while (_c != null) {
        for (Method m : _c.getDeclaredMethods()) {
          m.setAccessible(true);
          multiMapPut(cache, m.getName(), m);
        }
        _c = _c.getSuperclass();
      }
    }

    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 abstract static class VF2<A, B> {

    public abstract void get(A a, B b);
  }

  public static class NLLogicChecker_v3 extends NLLogicChecker_v2 {
  }

  public static class NLLogicChecker_v2 {

    public String input;

    public List<String> facts = new ArrayList();

    public List<IfThen> rules = new ArrayList();

    public StringMatcher matcher = ai_standardMatcher();

    public List<String> posted = new ArrayList();

    public ThreadLocal<IfThen> checkingRule = new ThreadLocal();

    public VF2<Object, Matching> onChecking;

    public VF3<Object, Matching, Object> onChecked;

    public static boolean staticVerbose;

    public boolean useIterate, allowUnsafeEvals = true;

    public HashMap<String, FuncChecker> funcCheckers = new HashMap();

    public HashMap<String, FuncIterator> funcIterators = new HashMap();

    public String followingUpOn;

    public List<Map> recentHistory;

    public List<String> entities;

    public F2<Exp, Matching, Object> evaluator = new F2<Exp, Matching, Object>() {

      public Object get(Exp e, Matching m) {
        try {
          String code = e.text();
          if (!allowUnsafeEvals && !isSafeCodeFragment(code))
            return null;
          return nlLogic_evalExp(NLLogicChecker_v2.this, code, m);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "S code = e.text();\r\n    if (!allowUnsafeEvals && !isSafeCodeFragment(code)) n...";
      }
    };

    public abstract static class FuncChecker {

      public abstract boolean check(Func e, Matching m);
    }

    public abstract static class FuncIterator {

      public abstract void iterate(Func e, Matching m, Runnable onMatch);
    }

    public static class Matching {

      public VarMatches matches = new VarMatches();

      public List<Exp> output = new ArrayList();

      public boolean verbose = staticVerbose;

      public String toString() {
        return sfu(matches) + "/" + sfu(output);
      }
    }

    public boolean checkRule(final IfThen rule, final Matching m) {
      if (rule == null)
        return false;
      return logCheck(rule, m, new F0<Boolean>() {

        public Boolean get() {
          try {
            return checkRule_impl(rule, m);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "ret checkRule_impl(rule, m);";
        }
      });
    }

    public boolean checkRule_impl(IfThen rule, Matching m) {
      AutoCloseable __1517 = tempSetThreadLocal(checkingRule, rule);
      try {
        if (!checkExpression(rule.in, m))
          return false;
        m.output.add(apply(rule.out, m));
        return true;
      } finally {
        _close(__1517);
      }
    }

    public Pair<Boolean, Exp> checkFirstCondition(IfThen rule, Matching m) {
      AutoCloseable __1518 = tempSetThreadLocal(checkingRule, rule);
      try {
        return checkFirstCondition(rule.in, m);
      } finally {
        _close(__1518);
      }
    }

    public Pair<Boolean, Exp> checkFirstCondition(Exp exp, Matching m) {
      Pair<Exp, Exp> p = nlLogic_extractFirstCondition(exp);
      if (p == null)
        return pair(true, null);
      if (!checkExpression(p.a, m))
        return pair(false, null);
      return pair(true, p.b);
    }

    public IfThen apply(IfThen r, Matching m) {
      return r == null ? null : new IfThen(apply(r.in, m), apply(r.out, m));
    }

    public Exp apply(Exp e, Matching m) {
      return apply(e, m.matches);
    }

    public Exp apply(Exp e, Map<String, String> m) {
      if (e == null)
        return null;
      if (e instanceof And)
        return new And(apply(((And) e).a, m), apply(((And) e).b, m));
      if (e instanceof ExpNot)
        return new ExpNot(apply(((ExpNot) e).a, m));
      if (e instanceof Func) {
        if (contains(((Func) e).options, "javaTokNoQuotes") && ((Func) e).arg instanceof Sentence2)
          return new Func(((Func) e).name, new Sentence2(join(replaceVars_withDollarQ(javaTokNoQuotes(((Func) e).arg.text()), m))));
        else
          return new Func(((Func) e).name, apply(((Func) e).arg, m));
      }
      if (e instanceof Sentence)
        return new Sentence(javaTok(matcher.apply(((Sentence) e).text(), m)));
      if (e instanceof Sentence2)
        return new Sentence2(matcher.apply(((Sentence2) e).text(), m));
      return e;
    }

    public <A> A logCheck(Object o, Matching m, F0<A> f) {
      callF(onChecking, o, m);
      try {
        A result = callF(f);
        callF(onChecked, o, m, result);
        return result;
      } catch (Throwable e) {
        callF(onChecked, o, m, e);
        throw rethrow(e);
      }
    }

    public final boolean checkExpression(final Exp e, final Matching m) {
      return logCheck(e, m, new F0<Boolean>() {

        public Boolean get() {
          try {
            return checkExpression_impl(e, m);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "ret checkExpression_impl(e, m);";
        }
      });
    }

    public boolean checkExpression_impl_1(Exp e, Matching m) {
      if (e instanceof And)
        return checkExpression(((And) e).a, m) && checkExpression(((And) e).b, m);
      return checkExpression_single(e, m);
    }

    public boolean checkExpression_single(Exp e, Matching m) {
      if (e instanceof ExpNot) {
        AutoCloseable __1519 = tempBackupMatches(m);
        try {
          return !checkExpression(((ExpNot) e).a, m);
        } finally {
          _close(__1519);
        }
      }
      if (e instanceof Func) {
        if (eq(((Func) e).name, "input") && !cic(((Func) e).options, "flexMatch")) {
          String pat = nlLogic_text(((Func) e).arg);
          if (contains(((Func) e).options, "re"))
            return regexpFindIC(pat, input);
          return nlLogic_matchVBarPattern(this, pat, input, m);
        } else if (eq(((Func) e).name, "fact")) {
          String pat = nlLogic_text(((Func) e).arg);
          if (contains(((Func) e).options, "random"))
            return nlLogic_matchRandomFact(this, pat, m);
          else
            return nlLogic_matchAnyFact(this, pat, m);
        } else if (eq(((Func) e).name, "allFacts")) {
          String pat = nlLogic_text(((Func) e).arg);
          List<VarMatches> l = nlLogic_matchAllFacts(this, pat, m);
          for (int i = 0; i < l(l); i++) {
            Map<String, String> vars = reverseGet(l, i);
            int n = i + 1;
            for (String var : keys(vars)) {
              String value = vars.get(var);
              if (!strictPutIC(m.matches, var + n, value))
                return false;
            }
          }
          return true;
        }
      }
      return false;
    }

    public AutoCloseable tempBackupMatches(final Matching m) {
      final VarMatches oldMatches = new VarMatches(m.matches);
      return new AutoCloseable() {

        public String toString() {
          return "m.matches = oldMatches;";
        }

        public void close() throws Exception {
          m.matches = oldMatches;
        }
      };
    }

    public Object evalExp(Exp e, Matching m) {
      return callF(evaluator, e, m);
    }

    public boolean checkExpression_impl(Exp e, Matching m) {
      Matches mm = new Matches();
      if (e instanceof Func) {
        FuncChecker checker = funcCheckers.get(((Func) e).name);
        if (checker != null && checker.check(((Func) e), m))
          return true;
        if (eq(((Func) e).name, "singular"))
          return nlLogic_stringFunction("singular", ((Func) e), m.matches);
        else if (eq(((Func) e).name, "entity")) {
          if (entities == null) {
            long time = sysNow();
            final String switched = switcheroo(input);
            print("Switched >> " + switched);
            entities = evalWithTimeoutOrNull(5000, new F0<List<String>>() {

              public List<String> get() {
                try {
                  return mapMethod("text", ai_extractEntities_v1(switched));
                } catch (Exception __e) {
                  throw rethrow(__e);
                }
              }

              public String toString() {
                return "ret mapMethod('text, ai_extractEntities_v1(switched));";
              }
            });
            print("Entities (" + elapsedMS(time) + " ms): " + joinWithComma(entities));
            if (entities == null)
              entities = new ArrayList();
          }
          for (String entity : entities) if (matcher.match(nlLogic_text(((Func) e).arg), entity, m.matches))
            return true;
        } else if (startsWith(((Func) e).name, "line", mm) && isInteger(mm.rest()) && checkingRule.get() != null) {
          int n = parseInt(mm.rest()) - nlLogic_numberOfLinesReferenced(checkingRule.get().in);
          String line = n == 0 ? input : getString(get(recentHistory, l(recentHistory) + n), "text");
          String pat = ((Func) e).arg.text();
          return matcher.match(pat, line, m.matches);
        } else if (eq(((Func) e).name, "iSaid")) {
          String line = getString(last(recentHistory), "text");
          if (line == null)
            return false;
          return matcher.match(((Func) e).arg.text(), line, m.matches);
        } else if (eq(((Func) e).name, "unknownIf")) {
          String statement = nlLogic_text(apply(((Func) e).arg, m));
          return !cic(facts, statement) && !cic(facts, "Untrue: " + statement);
        } else if (eq(((Func) e).name, "inputContainsTokens"))
          return jcontains(input, nlLogic_text(((Func) e).arg));
        else if (eq(((Func) e).name, "inputStartsWith"))
          return startsWith(input, nlLogic_text(((Func) e).arg));
        else if (eq(((Func) e).name, "anyInput"))
          return nempty(input);
        else if (eq(((Func) e).name, "preciseInput"))
          return eq(nlLogic_text(apply(((Func) e).arg, m)), input);
        else if (eq(((Func) e).name, "followingUpOn")) {
          String text = nlLogic_text(((Func) e).arg);
          if (eq(text, followingUpOn))
            return true;
          Map prevPrev = nextToLast(recentHistory);
          String msgID = getString(prevPrev, "globalID");
          String input = getString(prevPrev, "text");
          String ruleID = null, dollarInput = null;
          if (match("* with input=*", text, mm) && !isDollarVar(mm.get(1))) {
            ruleID = mm.unq(0);
            dollarInput = mm.get(1);
          } else
            ruleID = text;
          String pat = format("Rule * fired on message * ", ruleID, msgID);
          for (String ruleFired : mL("Telegram Rule Fires")) if (swic(ruleFired, pat)) {
            if (dollarInput != null && !strictPutIC(m.matches, dollarInput, input))
              return false;
            List<String> tok = javaTokWithBrackets2(ruleFired);
            if (find3("with vars *", tok, mm)) {
              Map<String, String> vars = safeUnstructMap(mm.get(0));
              if (!addMapToMapWithoutOverwritingIC(m.matches, vars))
                return false;
            }
            return true;
          }
          return false;
        } else if (eq(((Func) e).name, "debug")) {
          print("[debug] " + apply(((Func) e).arg, m));
          return true;
        }
      }
      if (e instanceof Eq) {
        Exp r = ((Eq) e).right;
        String var = nlLogic_text(((Eq) e).left);
        if (endsWith(var, "!")) {
          AutoCloseable __1520 = tempBackupMatches(m);
          try {
            return !matcher.match(dropSuffixTrim("!", var), r.text(), m.matches);
          } finally {
            _close(__1520);
          }
        }
        if (r instanceof Func) {
          try {
            if (eq(((Func) r).name, "eval")) {
              Object result = evalExp(((Func) r).arg, m);
              if (result != null) {
                List<String> vars = tok_splitAtComma(var);
                Boolean x = ai_matchObjectWithMultipleVars(vars, result, m.matches);
                if (x != null)
                  return x;
                String sResult = str(result);
                StringMatcher _matcher = matcher;
                if (isDollarVar(var))
                  _matcher = new NLStringMatcher_singleDollarVar();
                else if (contains(var, ',')) {
                  if (allDollarVars(vars) && ai_matchMulti(vars, tok_splitAtComma(sResult), m.matches))
                    return true;
                }
                return _matcher.match(var, sResult, m.matches);
              }
            }
          } catch (Throwable __e) {
            _handleException(__e);
          }
        }
      }
      if (e instanceof Sentence2) {
        String text = ((Sentence2) e).text();
        if (eq(text, "true"))
          return true;
      }
      return checkExpression_impl_1(e, m);
    }

    public void iterate(final Exp e, final Matching m, final Runnable onMatch) {
      if (e instanceof And) {
        iterate(((And) e).a, m, new Runnable() {

          public void run() {
            try {
              iterate(((And) e).b, m, onMatch);
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "iterate(((And) e).b, m, onMatch)";
          }
        });
        return;
      }
      if (e instanceof ExpNot) {
        if (m.verbose)
          print("iterate not: " + ((ExpNot) e));
        final Flag flag = new Flag();
        withCancelPoint(new VF1<CancelPoint>() {

          public void get(final CancelPoint cp) {
            try {
              iterate(((ExpNot) e).a, m, new Runnable() {

                public void run() {
                  try {
                    if (m.verbose)
                      print("iterate not: raising flag");
                    flag.raise();
                    cancelTo(cp);
                  } catch (Exception __e) {
                    throw rethrow(__e);
                  }
                }

                public String toString() {
                  return "if (m.verbose) print(\"iterate not: raising flag\");\r\n          flag.raise();\r\n...";
                }
              });
            } catch (Exception __e) {
              throw rethrow(__e);
            }
          }

          public String toString() {
            return "iterate(e.a, m, r {\r\n          if (m.verbose) print(\"iterate not: raising fla...";
          }
        });
        if (!flag.isUp())
          callF(onMatch);
        return;
      }
      iterate_single(e, m, onMatch);
    }

    public void iterate_single(final Exp e, final Matching m, final Runnable onMatch) {
      if (e instanceof Func) {
        FuncIterator it = funcIterators.get(((Func) e).name);
        if (it != null)
          it.iterate(((Func) e), m, onMatch);
        if (eq(((Func) e).name, "fact")) {
          String pat = nlLogic_text(((Func) e).arg);
          VarMatches oldMatches = new VarMatches(m.matches);
          for (String fact : facts) {
            if (m.verbose)
              print("iterate matching: " + pat + " with " + fact + " - " + sfu(m.matches));
            for (String pat2 : tok_splitAtVerticalBar(pat)) if (matcher.match(pat2, fact, m.matches)) {
              if (m.verbose)
                print("iterate match: " + pat + " / " + fact + " - " + m);
              try {
                callF(onMatch);
              } finally {
                m.matches = new VarMatches(oldMatches);
              }
            }
          }
          return;
        } else if (eq(((Func) e).name, "input") && cic(((Func) e).options, "flexMatch")) {
          String pat = nlLogic_text(((Func) e).arg);
          if (m.verbose)
            print("input flexMatch " + pat);
          VarMatches oldMatches = new VarMatches(m.matches);
          nlLogic_flexMatch_iterate_vbar(pat, input, m, onMatch, oldMatches);
          return;
        }
      }
      if (e instanceof Sentence2 && contains(e.text(), " in ")) {
        List<String> tok = javaTokPlusAllThreeBrackets(e.text());
        String var, var2;
        Matches mm = new Matches();
        if (m.verbose)
          print("iterate in eval tok: " + sfu(tok));
        if (jmatch("* in eval *", tok, mm) && isDollarVar(var = mm.get(0)) && isRoundBracketed(mm.get(1))) {
          if (m.verbose)
            print("iterate in eval: " + mm.get(1));
          Iterable l = (Iterable) (evalExp(new Sentence2(deRoundBracket(mm.get(1))), m));
          VarMatches oldMatches = new VarMatches(m.matches);
          for (Object element : unnull(l)) {
            {
              if (!(element != null))
                continue;
            }
            String s = str(element);
            if (m.verbose)
              print("iterate in eval got element: " + s);
            if (strictPutIC(m.matches, var, s))
              try {
                callF(onMatch);
              } finally {
                m.matches = new VarMatches(oldMatches);
              }
          }
        }
        if (jmatch("*, * in eval *", tok, mm) && isDollarVar(var = mm.get(0)) && isDollarVar(var2 = mm.get(1)) && isRoundBracketed(mm.get(2))) {
          List<String> vars = ll(var, var2);
          Iterable l = (Iterable) (evalExp(new Sentence2(deRoundBracket(mm.get(2))), m));
          VarMatches oldMatches = new VarMatches(m.matches);
          for (Object element : unnull(l)) {
            {
              if (!(element != null))
                continue;
            }
            if (m.verbose)
              print("iterate in eval got element: " + element);
            if (isTrue(ai_matchObjectWithMultipleVars(vars, element, m.matches)))
              try {
                callF(onMatch);
              } finally {
                m.matches = new VarMatches(oldMatches);
              }
          }
        }
      }
      AutoCloseable __1521 = tempBackupMatches(m);
      try {
        if (m.verbose)
          print("iterate fallback: " + sfu(e));
        if (checkExpression(e, m)) {
          if (m.verbose)
            print("iterate fallback match: " + e);
          callF(onMatch);
        }
      } finally {
        _close(__1521);
      }
    }

    public boolean checkHelper(Exp e, Matching m) {
      return nlLogic_checkHelper(e, m.matches);
    }

    public NLLogicChecker_v2() {
      initCheckers();
      initIterators();
    }

    public void initCheckers() {
      mapPutMultipleKeys(funcCheckers, new FuncChecker() {

        public boolean check(Func e, Matching m) {
          return nlLogic_stringFunction("ai_verbPhraseFromThirdPerson", e, m.matches);
        }
      }, "verbPhraseFromThirdPerson", "verbFromThirdPerson");
      funcCheckers.put("eval", new FuncChecker() {

        public boolean check(Func e, Matching m) {
          return eq("true", str(evalExp(e.arg, m)));
        }
      });
    }

    public void initIterators() {
      funcIterators.put("phrase", new FuncIterator() {

        public void iterate(Func e, Matching m, Runnable onMatch) {
          String pat = e.argText();
          List<String> patTok = standardTok(pat);
          List<String> inputTok = standardTok(input);
          for (List<String> inputPart : tok_marchPatternThroughInput(patTok, inputTok)) if (matcher.match(pat, join(inputPart), m.matches))
            callF(onMatch);
        }
      });
    }

    public List<String> standardTok(String s) {
      return javaTokWithAllBrackets(s);
    }
  }

  public static class Var<A> implements IVar<A> {

    public A v;

    public Var() {
    }

    public Var(A v) {
      this.v = v;
    }

    public synchronized void set(A a) {
      if (v != a) {
        v = a;
        notifyAll();
      }
    }

    public synchronized A get() {
      return v;
    }

    public synchronized boolean has() {
      return v != null;
    }

    public synchronized void clear() {
      v = null;
    }

    public String toString() {
      return str(get());
    }
  }

  public static class MechListDependentCache<A> extends Cache<A> {

    public String listName, lastListContents;

    public MechListDependentCache() {
    }

    public MechListDependentCache(String listName, Object maker) {
      this.maker = maker;
      this.listName = listName;
    }

    public A make() {
      return (A) callF(maker, lastListContents);
    }

    public A get() {
      if (hasLock(lock))
        return value;
      {
        Lock __1527 = lock;
        lock(__1527);
        try {
          String listContents = mL_raw(listName);
          if (neq(listContents, lastListContents)) {
            clear();
            lastListContents = listContents;
          }
        } finally {
          unlock(__1527);
        }
      }
      return super.get();
    }
  }

  public static class ExecutedRule {

    public RuleWithParams rule;

    public List<String> output;

    public List<String> facts;

    public List<String> newInput;

    public transient NLLogicChecker_v2 logicChecker;

    public int _failureLevel;

    public ExecutedRule() {
    }

    public ExecutedRule(RuleWithParams rule, Collection<String> output, Collection<String> facts, Collection<String> newInput) {
      this.rule = rule;
      this.output = asList_nullIfEmpty(output);
      this.facts = asList_nullIfEmpty(facts);
      this.newInput = asList_nullIfEmpty(newInput);
    }

    public int failureLevel() {
      if (_failureLevel != 0)
        return _failureLevel;
      if (rule instanceof FailedRule)
        _failureLevel = nlLogic_failureLevel_calc(this);
      return _failureLevel;
    }

    public String ruleID() {
      return rule.ruleID();
    }

    public boolean isFailed() {
      return rule instanceof FailedRule;
    }
  }

  public abstract static class StringMatcher {

    public abstract boolean match(String pat, String input, Map<String, String> matches);

    public String apply(String input, Map<String, String> matches) {
      return ai_standardReplaceVars(input, matches);
    }

    public boolean matchAnyPattern(Collection<String> patterns, String input, Map<String, String> matches) {
      for (String pat : unnull(patterns)) if (match(pat, input, matches))
        return true;
      return false;
    }

    public boolean matchAnyInput(String pat, Collection<String> inputs, Map<String, String> matches) {
      for (String input : unnull(inputs)) if (match(pat, input, matches))
        return true;
      return false;
    }
  }

  public abstract static class TokCondition {

    public abstract boolean get(List<String> tok, int i);
  }

  public abstract static class LiveValue<A> {

    public abstract Class<A> getType();

    public abstract A get();

    public abstract void onChange(Runnable l);

    public abstract void removeOnChangeListener(Runnable l);

    public void onChangeAndNow(Runnable l) {
      onChange(l);
      callF(l);
    }
  }

  public static class CombinedStringMatcher extends StringMatcher {

    public List<StringMatcher> matchers = new ArrayList();

    public CombinedStringMatcher() {
    }

    public CombinedStringMatcher(StringMatcher... matchers) {
      addAll(this.matchers, matchers);
    }

    public boolean match(String pat, String input, Map<String, String> matches) {
      for (StringMatcher m : matchers) if (m.match(pat, input, matches))
        return true;
      return false;
    }
  }

  public static class SimpleLiveValue<A> extends LiveValue<A> {

    public Class<A> type;

    public volatile A value;

    public transient List onChange = synchroList();

    public SimpleLiveValue(Class<A> type) {
      this.type = type;
    }

    public SimpleLiveValue(Class<A> type, A value) {
      this.value = value;
      this.type = type;
    }

    public Class<A> getType() {
      return type;
    }

    public A get() {
      return value;
    }

    public void onChange(Runnable l) {
      onChange.add(l);
    }

    public void onChangeAndNow(Runnable l) {
      onChange(l);
      callF(l);
    }

    public void removeOnChangeListener(Runnable l) {
      onChange.remove(l);
    }

    public void fireChanged() {
      pcallFAll(onChange);
    }

    public void set(A a) {
      if (neq(value, a)) {
        value = a;
        fireChanged();
      }
    }
  }

  public static class NLStringMatcher_dollarVars_underscores_dollarDollar extends StringMatcher {

    public boolean match(String pat, String input, Map<String, String> matches) {
      pat = trim(pat);
      if (startsWith(pat, "$$") && isDollarVar(pat))
        return strictPutIC(matches, pat, input);
      Map<String, String> newMatches = matchDollarVarsIC_underscores(pat, input);
      return newMatches != null && addMapToMapWithoutOverwritingIC(matches, newMatches);
    }

    public String apply(String input, Map<String, String> matches) {
      return replaceVars(input, matches);
    }
  }

  public static class NLStringMatcher_dollarVars extends StringMatcher {

    public boolean match(String pat, String input, Map<String, String> matches) {
      Map<String, String> newMatches = matchDollarVarsIC(pat, input);
      return newMatches != null && addMapToMapWithoutOverwritingIC(matches, newMatches);
    }

    public String apply(String input, Map<String, String> matches) {
      return replaceVars(input, matches);
    }
  }

  public static class InputChooser implements Swingable {

    public DynModule module;

    public boolean myInput;

    public String ownInput;

    public transient int delay;

    public transient ReliableSingleThread rst;

    public transient String input;

    public transient JPanel panel;

    public transient JTextField tfInput;

    public transient JCheckBox cbInput;

    public InputChooser() {
    }

    public InputChooser(DynModule module) {
      this.module = module;
    }

    public String input() {
      return input;
    }

    public String _freshInput() {
      return myInput ? ownInput : dm_getInterestingString();
    }

    public void forceUpdate() {
      input = null;
      module.updateMe();
    }

    public void forgetInput() {
      input = null;
    }

    public boolean update() {
      String s = _freshInput();
      if (neq(input, s)) {
        input = s;
        return true;
      }
      return false;
    }

    public JComponent visualize() {
      if (panel != null)
        return panel;
      tfInput = jcenteredtextfield(ownInput);
      cbInput = setToolTip("Checked: Use my own input. Unchecked: take input from AI bar on the top of OS", jcheckbox(myInput));
      onChangeAndNow(cbInput, new Runnable() {

        public void run() {
          try {
            setEnabled(tfInput, isChecked(cbInput));
            myInput = isChecked(cbInput);
            updateModule();
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "setEnabled(tfInput, isChecked(cbInput));\r\n      myInput = isChecked(cbInput);...";
        }
      });
      onChange(tfInput, new Runnable() {

        public void run() {
          try {
            if (myInput) {
              ownInput = getText(tfInput);
              updateModule();
            }
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "if (myInput) {\r\n        ownInput = getText(tfInput);\r\n        updateModule();...";
        }
      });
      return panel = westAndCenter(cbInput, tfInput);
    }

    public void updateModule() {
      if (rst == null)
        rst = rstWithDelay(delay, new Runnable() {

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

          public String toString() {
            return "module.updateMe()";
          }
        });
      rst.trigger();
    }

    public InputChooser setDelay(int delay) {
      this.delay = delay;
      return this;
    }
  }

  public static class Lowest<A> {

    public A best;

    public double score;

    public transient Object onChange;

    public synchronized boolean isNewBest(double score) {
      return best == null || score < this.score;
    }

    public synchronized double bestScore() {
      return best == null ? Double.NaN : score;
    }

    public double score() {
      return bestScore();
    }

    public synchronized float floatScore() {
      return best == null ? Float.NaN : (float) score;
    }

    public synchronized float floatScoreOr(float defaultValue) {
      return best == null ? defaultValue : (float) score;
    }

    public boolean put(A a, double score) {
      boolean change = false;
      synchronized (this) {
        if (a != null && isNewBest(score)) {
          best = a;
          this.score = score;
          change = true;
        }
      }
      if (change)
        pcallF(onChange);
      return change;
    }

    public synchronized A get() {
      return best;
    }

    public synchronized boolean has() {
      return best != null;
    }
  }

  public static class CompilerBot {

    public static boolean verbose;

    public static File compileSnippet(String snippetID) {
      return compileSnippet(snippetID, "");
    }

    public static Pair<File, String> compileSnippet2(String snippetID) {
      return compileSnippet2(snippetID, "");
    }

    public static File compileSnippet(String snippetID, String javaTarget) {
      return compileSnippet2(snippetID, javaTarget).a;
    }

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

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

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

    public static File compile(String src, String dehlibs, String javaTarget) {
      return compile(src, dehlibs, javaTarget, null);
    }

    public static File compile(String src, String dehlibs, String javaTarget, String progID) {
      if (verbose)
        print("Compiling " + l(src) + " chars");
      String md5 = md5(dehlibs + "\n" + src + "\n" + progID);
      File jar = getJarFile(md5);
      if (jar == null || jar.length() <= 22) {
        List<String> mainClass = findMainClass(javaTok(src));
        boolean canRename = mainClass != null && useDummyMainClasses() && isSnippetID(progID) && !tok_classHasModifier(mainClass, "public");
        if (verbose)
          print("useRenaming: " + useDummyMainClasses() + ", canRename: " + canRename + ", progID: " + progID);
        javaCompileToJar_optionalRename(src, dehlibs, jar, canRename ? progID : null, progID);
      } else {
        if (verbose)
          print("Getting classes from cache (" + jar.getAbsolutePath() + ", " + jar.length() + " bytes)");
        touchFile(jar);
      }
      return jar;
    }

    public static File getJarFile(String md5) {
      assertTrue(isMD5(md5));
      return new File(getCacheProgramDir("#1002203"), md5 + ".jar");
    }
  }

  public static class T3<A, B, C> {

    public A a;

    public B b;

    public C c;

    public T3() {
    }

    public T3(A a, B b, C c) {
      this.c = c;
      this.b = b;
      this.a = a;
    }

    public T3(T3<A, B, C> t) {
      a = t.a;
      b = t.b;
      c = t.c;
    }

    public int hashCode() {
      return _hashCode(a) + 2 * _hashCode(b) - 4 * _hashCode(c);
    }

    public boolean equals(Object o) {
      if (o == this)
        return true;
      if (!(o instanceof T3))
        return false;
      T3 t = (T3) o;
      return eq(a, t.a) && eq(b, t.b) && eq(c, t.c);
    }

    public String toString() {
      return "(" + quoteBorderless(a) + ", " + quoteBorderless(b) + ", " + quoteBorderless(c) + ")";
    }
  }

  public static class Pair<A, B> implements Comparable<Pair<A, B>> {

    public A a;

    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);
    }
  }

  public static class NLStringMatcher_dollarVars_plusBrackets extends StringMatcher {

    public boolean match(String pat, String input, Map<String, String> matches) {
      Map<String, String> newMatches = matchDollarVarsIC_plusBrackets(pat, input);
      return newMatches != null && addMapToMapWithoutOverwritingIC(matches, newMatches);
    }
  }

  public static class JavaXClassLoader extends URLClassLoader {

    public String progID;

    public List<File> files;

    public Set<String> triedToLoad = synchroSet();

    public Set<Class> loadedClasses = synchroSet();

    public boolean retired;

    public Object retiredMarker;

    public JavaXClassLoader(String progID, List<File> files) {
      this(progID, files, getSystemClassLoader());
    }

    public JavaXClassLoader(String progID, List<File> files, ClassLoader parent) {
      super(new URL[0], parent);
      this.progID = progID;
      this.files = files;
      {
        try {
          for (File f : files) addURL(f.toURI().toURL());
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }
      fixACCInClassLoader(this);
    }

    public Class<?> findClass(String name) throws ClassNotFoundException {
      boolean triedBefore = !triedToLoad.add(name);
      try {
        Class<?> c = super.findClass(name);
        loadedClasses.add(c);
        if (eq(name, "main"))
          callOpt(javax(), "registerAMainClass", c);
        return c;
      } catch (ClassNotFoundException e) {
        throw new ClassNotFoundException("Class " + name + " not found in " + joinWithComma(map("f2s", files)) + " (progID=" + progID + ")" + (triedBefore ? ", tried to load before" : ""), e);
      }
    }

    public String toString() {
      return "JavaXClassLoader[" + systemHashCodeHex(this) + "] - " + progID;
    }
  }

  public static class FailedRule extends RuleWithParams {

    public List<Exp> satisfiedConditions;

    public Exp remainingCondition;

    public FailedRule() {
    }

    public FailedRule(IfThen rule, VarMatches matches, Exp remainingCondition) {
      this.remainingCondition = remainingCondition;
      this.matches = matches;
      this.rule = rule;
    }

    public FailedRule(IfThen rule, VarMatches matches, List<Exp> satisfiedConditions, Exp remainingCondition) {
      this.remainingCondition = remainingCondition;
      this.satisfiedConditions = satisfiedConditions;
      this.matches = matches;
      this.rule = rule;
    }
  }

  public static class RuleWithParams {

    public static String _fieldOrder = "rule matches";

    public IfThen rule;

    public VarMatches matches;

    public RuleWithParams() {
    }

    public RuleWithParams(IfThen rule, VarMatches matches) {
      this.matches = matches;
      this.rule = rule;
    }

    public String toString() {
      return "RuleWithParams(" + rule + ", " + matches + ")";
    }

    public boolean equals(Object o) {
      if (!(o instanceof RuleWithParams))
        return false;
      RuleWithParams x = (RuleWithParams) (o);
      return eq(rule, x.rule) && eq(matches, x.matches);
    }

    public int hashCode() {
      int h = 1254104616;
      h = h * 2 + _hashCode(rule);
      h = h * 2 + _hashCode(matches);
      return h;
    }

    public String ruleID() {
      return rule.globalID;
    }
  }

  public static class IfThen {

    public static String _fieldOrder = "in out globalID options originalText";

    public Exp in;

    public Exp out;

    public IfThen() {
    }

    public IfThen(Exp in, Exp out) {
      this.out = out;
      this.in = in;
    }

    public boolean equals(Object o) {
      if (!(o instanceof IfThen))
        return false;
      IfThen x = (IfThen) (o);
      return eq(in, x.in) && eq(out, x.out);
    }

    public int hashCode() {
      int h = -2108234502;
      h = h * 2 + _hashCode(in);
      h = h * 2 + _hashCode(out);
      return h;
    }

    public String globalID;

    public Set<String> options;

    public String originalText;

    public String text() {
      Collection<String> opt = options;
      if (nempty(globalID))
        opt = concatLists(ll("id: " + globalID), opt);
      return (nempty(opt) ? "[" + joinWithComma(opt) + "] " : "") + (in == null ? "" : in.text() + "\n  => ") + nlLogic_text(out);
    }

    public String toString() {
      return text();
    }
  }

  public abstract static class Exp {

    public abstract String text();

    public String toString() {
      return text();
    }
  }

  public static class Func extends Exp {

    public static String _fieldOrder = "name arg options";

    public String name;

    public Exp arg;

    public Func() {
    }

    public Func(String name, Exp arg) {
      this.arg = arg;
      this.name = name;
    }

    public boolean equals(Object o) {
      if (!(o instanceof Func))
        return false;
      Func x = (Func) (o);
      return eq(name, x.name) && eq(arg, x.arg);
    }

    public int hashCode() {
      int h = 2201316;
      h = h * 2 + _hashCode(name);
      h = h * 2 + _hashCode(arg);
      return h;
    }

    public List<String> options;

    public Func(String name, List<String> options, Exp arg) {
      this.arg = arg;
      this.options = options;
      this.name = name;
    }

    public String text() {
      return name + (empty(options) ? "" : "[" + joinWithComma(options) + "]") + "(" + arg.text() + ")";
    }

    public String argText() {
      return nlLogic_text(arg);
    }
  }

  public static class And extends Exp {

    public Exp a;

    public Exp b;

    public And() {
    }

    public And(Exp a, Exp b) {
      this.b = b;
      this.a = a;
    }

    public boolean equals(Object o) {
      if (!(o instanceof And))
        return false;
      And x = (And) (o);
      return eq(a, x.a) && eq(b, x.b);
    }

    public int hashCode() {
      int h = 65975;
      h = h * 2 + _hashCode(a);
      h = h * 2 + _hashCode(b);
      return h;
    }

    public String text() {
      return a.text() + "\n  && " + b.text();
    }
  }

  public static class ExpNot extends Exp {

    public Exp a;

    public ExpNot() {
    }

    public ExpNot(Exp a) {
      this.a = a;
    }

    public boolean equals(Object o) {
      if (!(o instanceof ExpNot))
        return false;
      ExpNot x = (ExpNot) (o);
      return eq(a, x.a);
    }

    public int hashCode() {
      int h = 2089649046;
      h = h * 2 + _hashCode(a);
      return h;
    }

    public String text() {
      return "!" + a.text();
    }
  }

  public abstract static class Literal extends Exp {
  }

  public static class Sentence extends Literal {

    public List<String> tok;

    public Sentence() {
    }

    public Sentence(List<String> tok) {
      this.tok = tok;
    }

    public boolean equals(Object o) {
      if (!(o instanceof Sentence))
        return false;
      Sentence x = (Sentence) (o);
      return eq(tok, x.tok);
    }

    public int hashCode() {
      int h = 1327381123;
      h = h * 2 + _hashCode(tok);
      return h;
    }

    public String text() {
      return join(tok);
    }
  }

  public static class Sentence2 extends Literal {

    public String text;

    public Sentence2() {
    }

    public Sentence2(String text) {
      this.text = text;
    }

    public boolean equals(Object o) {
      if (!(o instanceof Sentence2))
        return false;
      Sentence2 x = (Sentence2) (o);
      return eq(text, x.text);
    }

    public int hashCode() {
      int h = -1800858097;
      h = h * 2 + _hashCode(text);
      return h;
    }

    public String text() {
      return text;
    }
  }

  public static class Eq extends Exp {

    public Exp left;

    public Exp right;

    public Eq() {
    }

    public Eq(Exp left, Exp right) {
      this.right = right;
      this.left = left;
    }

    public boolean equals(Object o) {
      if (!(o instanceof Eq))
        return false;
      Eq x = (Eq) (o);
      return eq(left, x.left) && eq(right, x.right);
    }

    public int hashCode() {
      int h = 2252;
      h = h * 2 + _hashCode(left);
      h = h * 2 + _hashCode(right);
      return h;
    }

    public String text() {
      return left.text() + " = " + right.text();
    }
  }

  public abstract static class IterableIterator<A> implements Iterator<A>, Iterable<A> {

    public Iterator<A> iterator() {
      return this;
    }

    public void remove() {
      unsupportedOperation();
    }
  }

  public abstract static class F2<A, B, C> {

    public abstract C get(A a, B b);
  }

  public static class Flag {

    public boolean up;

    public synchronized boolean raise() {
      if (!up) {
        up = true;
        notifyAll();
        return true;
      } else
        return false;
    }

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

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

    public synchronized boolean isUp() {
      return up;
    }

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

    public void waitForThisOr(Flag otherFlag) {
      try {
        while (!isUp() && !otherFlag.isUp()) Thread.sleep(50);
      } catch (Exception __e) {
        throw rethrow(__e);
      }
    }
  }

  public static 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 abstract static class CloseableIterableIterator<A> extends IterableIterator<A> implements AutoCloseable {

    public void close() throws Exception {
    }
  }

  public static class ExpiringMap2<A, B> extends AbstractMap<A, B> {

    public Map<A, Pair<Long, B>> byKey = new HashMap();

    public PriorityBlockingQueue<Pair<Long, A>> queue = new PriorityBlockingQueue();

    public long standardExpiryTime;

    public boolean renewOnOverwrite = true, renewOnGet;

    public Object onChange;

    public ExpiringMap2() {
    }

    public ExpiringMap2(long standardExpiryTime) {
      this.standardExpiryTime = standardExpiryTime;
    }

    public ExpiringMap2(long standardExpiryTime, Object onChange) {
      this.onChange = onChange;
      this.standardExpiryTime = standardExpiryTime;
    }

    public synchronized boolean clean() {
      boolean changes = false;
      Pair<Long, A> p;
      while ((p = queue.peek()) != null && sysTime() >= p.a) {
        p = queue.poll();
        Pair<Long, B> v = byKey.get(p.b);
        if (v != null) {
          byKey.remove(p.b);
          changes = true;
          change();
        }
      }
      return changes;
    }

    public void change() {
      callF(onChange);
    }

    public synchronized B put(A a, B b) {
      clean();
      long timeout = sysTime() + standardExpiryTime;
      Pair<Long, B> p = byKey.get(a);
      if (p != null && renewOnOverwrite)
        queue.remove(new Pair(p.a, a));
      byKey.put(a, pair(timeout, b));
      change();
      if (p == null || renewOnOverwrite)
        queue.add(new Pair(timeout, a));
      return pairB(p);
    }

    public synchronized B remove(Object a) {
      clean();
      Pair<Long, B> p = byKey.get(a);
      if (p == null)
        return null;
      queue.remove(new Pair(p.a, a));
      byKey.remove(a);
      change();
      return p.b;
    }

    public synchronized B get(Object a) {
      clean();
      Pair<Long, B> p = byKey.get(a);
      if (renewOnGet && p != null) {
        queue.remove(new Pair(p.a, a));
        long timeout = sysTime() + standardExpiryTime;
        byKey.put((A) a, pair(timeout, p.b));
        queue.add(new Pair(timeout, a));
      }
      return pairB(p);
    }

    public synchronized Set<Map.Entry<A, B>> entrySet() {
      clean();
      return synchronizedSet(mapValues("pairB", byKey).entrySet());
    }

    public synchronized Set<A> keySet() {
      clean();
      return synchronizedSet(byKey.keySet());
    }

    public synchronized int size() {
      clean();
      return byKey.size();
    }

    public void setStandardExpiryTime(long ms) {
      standardExpiryTime = ms;
    }

    public synchronized ExpiringMap2<A, B> setMap(Map innerMap) {
      byKey = innerMap;
      return this;
    }
  }

  public static interface Producer<A> {

    public A next();
  }

  public static class MechMode {

    public Object readMode;

    public Object writeMode;

    public MechMode() {
    }

    public MechMode(Object readMode, Object writeMode) {
      this.writeMode = writeMode;
      this.readMode = readMode;
    }

    public String toString() {
      return "MechMode(" + readMode + ", " + writeMode + ")";
    }

    public boolean equals(Object o) {
      if (!(o instanceof MechMode))
        return false;
      MechMode x = (MechMode) (o);
      return eq(readMode, x.readMode) && eq(writeMode, x.writeMode);
    }

    public int hashCode() {
      int h = -866263200;
      h = h * 2 + _hashCode(readMode);
      h = h * 2 + _hashCode(writeMode);
      return h;
    }
  }

  public static class CancelPoint implements AutoCloseable {

    public volatile boolean closed;

    public void close() {
      closed = true;
    }
  }

  public static interface Swingable {

    public JComponent visualize();
  }

  public abstract static class VF3<A, B, C> {

    public abstract void get(A a, B b, C c);
  }

  public static class NLStringMatcher_singleDollarVar extends StringMatcher {

    public boolean match(String pat, String input, Map<String, String> matches) {
      if (!isDollarVar(pat))
        return match3(pat, input);
      return addMapToMapWithoutOverwritingIC(matches, litmap(pat, input));
    }

    public String apply(String input, Map<String, String> matches) {
      return replaceVars(input, matches);
    }
  }

  public static class ReliableSingleThread implements Runnable {

    public Object runnable;

    public boolean trigger;

    public Thread thread;

    public String name = "Single Thread";

    public F0<AutoCloseable> enter;

    public ReliableSingleThread(Object runnable) {
      this.runnable = runnable;
    }

    public void trigger() {
      go();
    }

    public synchronized void go() {
      trigger = true;
      if (!running()) {
        AutoCloseable __1584 = callF(enter);
        try {
          thread = startThread(name, new Runnable() {

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

            public String toString() {
              return "_run();";
            }
          });
        } finally {
          _close(__1584);
        }
      }
    }

    public void run() {
      go();
    }

    public void get() {
      go();
    }

    public synchronized boolean running() {
      return thread != null;
    }

    public void triggerAndWait() {
      trigger();
      while (running()) sleep(1);
    }

    public void _run() {
      while (licensed()) {
        synchronized (this) {
          if (!trigger) {
            thread = null;
            break;
          }
          trigger = false;
        }
        pcallF(runnable);
      }
    }

    public synchronized void cancel() {
      cancelAndInterruptThread(thread);
      thread = null;
    }
  }

  public static class VarMatches extends WrappedMap<String, String> {

    public VarMatches() {
      super(new LinkedHashMap());
    }

    public VarMatches(Map<String, String> map) {
      this();
      main.putAll(this, map);
    }
  }

  public static interface IVar<A> {

    public void set(A a);

    public A get();

    public boolean has();

    public void clear();
  }

  public static class Cache<A> {

    public Object maker;

    public A value;

    public long loaded;

    public static boolean debug;

    public long changeCount;

    public Lock lock = lock();

    public Cache() {
    }

    public Cache(Object maker) {
      this.maker = maker;
    }

    public A get() {
      if (hasLock(lock))
        return value;
      Lock __1592 = lock;
      lock(__1592);
      try {
        if (loaded == 0) {
          value = make();
          changeCount++;
          loaded = sysNow();
        }
        return value;
      } finally {
        unlock(__1592);
      }
    }

    public void clear() {
      Lock __1593 = lock;
      lock(__1593);
      try {
        if (debug && loaded != 0)
          print("Clearing cache");
        value = null;
        changeCount++;
        loaded = 0;
      } finally {
        unlock(__1593);
      }
    }

    public void clear(double seconds) {
      Lock __1594 = lock;
      lock(__1594);
      try {
        if (seconds != 0 && loaded != 0 && sysNow() >= loaded + seconds * 1000)
          clear();
      } finally {
        unlock(__1594);
      }
    }

    public void set(A a) {
      Lock __1595 = lock;
      lock(__1595);
      try {
        value = a;
        ++changeCount;
        loaded = sysNow();
      } finally {
        unlock(__1595);
      }
    }

    public A make() {
      return (A) callF(maker);
    }
  }

  public static class WrappedMap<A, B> extends AbstractMap<A, B> {

    public Map<A, B> map;

    public WrappedMap() {
    }

    public WrappedMap(Map<A, B> map) {
      this.map = map;
    }

    public B get(Object key) {
      return map.get(key);
    }

    public B put(A key, B value) {
      return map.put(key, value);
    }

    public boolean containsKey(Object key) {
      return map.containsKey(key);
    }

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

  public static Map<String, String> singular_specials = litmap("children", "child", "images", "image", "chess", "chess");

  public static Set<String> singular_specials2 = litset("time", "machine", "line");

  public static String singular(String s) {
    if (s == null)
      return null;
    {
      String _a_1601 = singular_specials.get(s);
      if (!empty(_a_1601))
        return _a_1601;
    }
    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;
  }

  public static String ai_verbPhraseFromThirdPerson(String s) {
    List<String> tok = javaTok(s);
    for (int i = 1; i < l(tok); i += 2) if (endsWithIC(tok.get(i), "s")) {
      tok.set(i, dropLast(tok.get(i)));
      break;
    }
    return join(tok);
  }

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

  public static <A, B> void multiMapPut(Map<A, List<B>> map, A a, B b) {
    List<B> l = map.get(a);
    if (l == null)
      map.put(a, l = new ArrayList());
    l.add(b);
  }

  public static <A, B> void multiMapPut(MultiMap<A, B> mm, A key, B value) {
    if (mm != null && key != null && value != null)
      mm.put(key, value);
  }

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

  public static boolean nlLogic_evalExp_verbose = true;

  public static Object nlLogic_evalExp(final NLLogicChecker_v2 c, Exp e, NLLogicChecker_v2.Matching m) {
    return nlLogic_evalExp(c, e.text(), m);
  }

  public static Object nlLogic_evalExp(final NLLogicChecker_v2 c, String code, NLLogicChecker_v2.Matching m) {
    final Map<String, String> vars = m.matches;
    AutoCloseable __1612 = tempSetTL(ai_context_tl(), new Object() {

      public List<String> getList(String var) {
        int i = 1;
        String s;
        List<String> l = new ArrayList();
        while ((s = vars.get(var + i++)) != null) l.add(s);
        return l;
      }

      public IfThen getRule(String id) {
        return findByField(c.rules, "globalID", id);
      }
    });
    try {
      if (nlLogic_evalExp_verbose)
        print("Eval'ing: " + code);
      AutoCloseable __1615 = tempAdd(hotwire_copyOver_after, new VF1<Class>() {

        public void get(Class c) {
          try {
            copyFields(mc(), c, ai_staticVars());
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "copyFields(mc(), c, ai_staticVars())";
        }
      });
      try {
        Object result = null;
        try {
          AutoCloseable __1617 = tempSetTL(evalJava_prep2_useCacheInThread, true);
          try {
            AutoCloseable __1621 = tempSetTL(evalJava_prep_voidMagic, false);
            try {
              Pair<List<String>, Object> p = prepareEvalWithDollarVars_assertAllVarsSet(code, m.matches);
              if (hasField(p.b, "ai_isTrue_f"))
                set(p.b, "ai_isTrue_f", new F1<String, Boolean>() {

                  public Boolean get(String s) {
                    try {
                      return nlLogic_matchAnyFact(c, s, new NLLogicChecker_v2.Matching());
                    } catch (Exception __e) {
                      throw rethrow(__e);
                    }
                  }

                  public String toString() {
                    return "nlLogic_matchAnyFact(c, s, new NLLogicChecker_v2.Matching())";
                  }
                });
              if (c.input != null) {
                ThreadLocal tl_vars = (ThreadLocal) (getOpt(p.b, "ai_getVar_map"));
                if (tl_vars != null)
                  tl_vars.set(litmap("#input", c.input));
              }
              result = evalWithDollarVars_step2(p, m.matches);
            } finally {
              _close(__1621);
            }
          } finally {
            _close(__1617);
          }
        } catch (Throwable __e) {
          _handleException(__e);
        }
        if (nlLogic_evalExp_verbose)
          print("  eval => " + shorten(str(result), 100));
        return result;
      } finally {
        _close(__1615);
      }
    } finally {
      _close(__1612);
    }
  }

  public static String sfu(Object o) {
    return structureForUser(o);
  }

  public static Pair<Exp, Exp> nlLogic_extractFirstCondition(Exp e) {
    if (e == null)
      return null;
    if (e instanceof And)
      return pair(((And) e).a, ((And) e).b);
    return pair(e, null);
  }

  public static List<String> javaTokNoQuotes(String s) {
    return quotelessJavaTok(s);
  }

  public static boolean regexpFindIC(String pat, String s) {
    return regexpICFind(pat, s);
  }

  public static boolean nlLogic_matchVBarPattern(NLLogicChecker_v2 c, String pat, String s, NLLogicChecker_v2.Matching m) {
    return nlLogic_matchVBarPattern(c, pat, s, m.matches);
  }

  public static boolean nlLogic_matchVBarPattern(NLLogicChecker_v2 c, String pat, String s, Map<String, String> matches) {
    for (String pat2 : tok_splitAtVerticalBar(pat)) if (c.matcher.match(pat2, s, matches))
      return true;
    return false;
  }

  public static boolean nlLogic_matchRandomFact(NLLogicChecker_v2 c, String pat, NLLogicChecker_v2.Matching m) {
    List<VarMatches> choices = nlLogic_matchAllFacts(c, pat, m);
    if (empty(choices))
      return false;
    m.matches = random(choices);
    return true;
  }

  public static boolean nlLogic_matchAnyFact(NLLogicChecker_v2 c, String pat, NLLogicChecker_v2.Matching m) {
    List<String> patterns = tok_splitAtVerticalBar(pat);
    for (String fact : c.facts) {
      boolean result = nlLogic_matchMultiplePatterns(c, patterns, fact, m);
      if (m.verbose)
        print("matched " + quote(pat) + " with " + quote(fact) + " & " + sfu(m.matches) + " => " + result);
      if (result)
        return true;
    }
    return false;
  }

  public static List<VarMatches> nlLogic_matchAllFacts(String pat, List<String> facts) {
    NLLogicChecker_v2 c = new NLLogicChecker_v2();
    c.facts = facts;
    return nlLogic_matchAllFacts(c, pat, new NLLogicChecker_v2.Matching());
  }

  public static List<VarMatches> nlLogic_matchAllFacts(NLLogicChecker_v2 c, String pat, NLLogicChecker_v2.Matching m) {
    List<String> patterns = tok_splitAtVerticalBar(pat);
    VarMatches m2 = null;
    List<VarMatches> choices = new ArrayList();
    for (String fact : c.facts) {
      if (m2 == null)
        m2 = new VarMatches(m.matches);
      boolean result = nlLogic_matchMultiplePatterns(c, patterns, fact, m2);
      if (m.verbose)
        print("matched " + quote(pat) + " with " + quote(fact) + " & " + sfu(m.matches) + " => " + result);
      if (result) {
        choices.add(m2);
        m2 = null;
      }
    }
    return choices;
  }

  public static <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;
  }

  public static <A> boolean strictPutIC(Map<A, String> map, A key, String value) {
    if (!(map != null && key != null && value != null))
      return true;
    String old = map.get(key);
    if (old == null) {
      map.put(key, value);
      return true;
    }
    return eqic(old, value);
  }

  public static boolean nlLogic_stringFunction(String f, Func e, Map<String, String> matches) {
    List<String> l = tok_splitAtComma(javaTokWithBrackets(nlLogic_text(e.arg)));
    if (l(l) != 2)
      return false;
    l = mapReplaceVars2(l, matches);
    if (isDollarVar(second(l)) && !isDollarVar(first(l)))
      return strictPutIC(matches, second(l), str(callAndMake(f, first(l))));
    return eqic(second(l), first(l));
  }

  public static List<String> switcheroo_themap = ll("mine", "yours", "my", "your", "you are", "i am", "are you", "am i", "you're", "i'm", "you've", "i've", "me", "you", "i", "you");

  public static String switcheroo(String s) {
    List<String> tok = nlTok5(s);
    for (int i = 1; i < l(tok); i += 2) {
      for (int j = 0; j < l(switcheroo_themap); j += 2) {
        String x = switcheroo_themap.get(j), y = switcheroo_themap.get(j + 1);
        List<String> tokx = nlTok5(x), toky = nlTok5(y);
        switcheroo_matchReplace(tok, i, tokx, toky);
        switcheroo_matchReplace(tok, i, toky, tokx);
      }
    }
    return join(map("switcheroo_dropAsterisk", tok));
  }

  public static String switcheroo_dropAsterisk(String t) {
    return startsWith(t, "*") && l(t) > 1 ? substring(t, 1) : t;
  }

  public static void switcheroo_matchReplace(List<String> tok, int i, List<String> tokx, List<String> toky) {
    if (switcheroo_tokRegionMatch(tok, i, tokx)) {
      for (int j = 0; j * 2 + 1 < l(tokx); j++) tok.set(i + j * 2, "*" + toky.get(1 + j * 2));
    }
  }

  public static boolean switcheroo_tokRegionMatch(List<String> tok, int i, List<String> tokx) {
    for (int j = 0; j * 2 + 1 < l(tokx); j++) if (!eqic(get(tok, i + j * 2), get(tokx, 1 + j * 2)))
      return false;
    return true;
  }

  public static Object evalWithTimeoutOrNull(final Object f, int timeoutMS) {
    return evalWithTimeoutOrNull(timeoutMS, f);
  }

  public static Object evalWithTimeoutOrNull(int timeoutMS, final Object f) {
    return eitherAOpt(evalWithTimeout(timeoutMS, f));
  }

  public static Object evalWithTimeoutOrNull(double timeoutSeconds, final Object f) {
    return eitherAOpt(evalWithTimeout(timeoutSeconds, f));
  }

  public static <A> A evalWithTimeoutOrNull(int timeoutMS, F0<A> f) {
    return (A) eitherAOpt(evalWithTimeout(timeoutMS, f));
  }

  public static <A> A evalWithTimeoutOrNull(double timeoutSeconds, F0<A> f) {
    return (A) eitherAOpt(evalWithTimeout(timeoutSeconds, f));
  }

  public static List mapMethod(Object[] l, final String methodName) {
    return map(l, new F1<Object, Object>() {

      public Object get(Object o) {
        try {
          return callOpt(o, methodName);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "callOpt(o, methodName)";
      }
    });
  }

  public static List mapMethod(Iterable c, final String methodName) {
    return map(c, new F1<Object, Object>() {

      public Object get(Object o) {
        try {
          return callOpt(o, methodName);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "callOpt(o, methodName)";
      }
    });
  }

  public static List mapMethod(String methodName, Iterable c) {
    return mapMethod(c, methodName);
  }

  public static List mapMethod(String methodName, Enumeration c) {
    return mapMethod(methodName, enumerationToIterator(c));
  }

  public static List<PTElement> ai_extractEntities_v1(String input) {
    if (startsWith(input, "!"))
      return emptyList();
    input = ai_lookupCurlyCheatSheet(input);
    return ai_extractEntities_v1(ai_parseToCulledTree(input));
  }

  public static List<PTElement> ai_extractEntities_v1(PTElement tree) {
    HashSet<PTElement> toSkip = new HashSet();
    List<PTElement> out = new ArrayList();
    for (PTElement e : ai_scanParseTreeForCategory(tree, "<noun>")) {
      if (toSkip.contains(e))
        continue;
      out.add(e);
      PTElement ee = ai_parseTree_simplifyNode(e);
      if (ee != null && ee != e)
        toSkip.add(ee);
    }
    return out;
  }

  public static long elapsedMS(long time) {
    ping();
    return sysNow() - time;
  }

  public static int nlLogic_numberOfLinesReferenced(Exp e) {
    if (e instanceof And)
      return max(nlLogic_numberOfLinesReferenced(((And) e).a), nlLogic_numberOfLinesReferenced(((And) e).b));
    if (e instanceof Func) {
      Matches m = new Matches();
      if (startsWith(((Func) e).name, "line", m))
        return parseIntOpt(m.rest());
    }
    return 0;
  }

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

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

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

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

  public static List<String> javaTokWithBrackets2(String s) {
    return javaTokPlusBrackets2(s);
  }

  public static boolean find3(String pat, String s) {
    return find3(pat, s, null);
  }

  public static boolean find3(String pat, String s, Matches matches) {
    return find3(pat, parse3(s), matches);
  }

  public static boolean find3(String pat, List<String> toks, Matches matches) {
    List<String> tokpat = parse3(pat);
    String[] m = find2(tokpat, toks);
    if (m == null)
      return false;
    if (matches != null)
      matches.m = m;
    return true;
  }

  public static Map safeUnstructMap(String s) {
    return safeUnstructureMap(s);
  }

  public static <A> boolean addMapToMapWithoutOverwritingIC(Map<A, String> map, Map<A, String> adding) {
    if (!canPutAllStrictlyIC(map, adding))
      return false;
    {
      final Map<A, String> __1657 = unnull(adding);
      for (A key : keys(__1657)) {
        String value = __1657.get(key);
        strictPutIC(map, key, value);
      }
    }
    return true;
  }

  public static String dropSuffixTrim(String suffix, String s) {
    return dropSuffixAndTrim(suffix, s);
  }

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

  public static Boolean ai_matchObjectWithMultipleVars(List<String> vars, Object result, Map<String, String> matches) {
    if (l(vars) == 2 && shortClassNameIs(result, "Pair"))
      return ai_matchMulti(vars, ll(strGet(result, "a"), strGet(result, "b")), matches);
    if (l(vars) == 3 && shortClassNameIs(result, "T3"))
      return ai_matchMulti(vars, ll(strGet(result, "a"), strGet(result, "b"), strGet(result, "c")), matches);
    if (result instanceof Collection)
      if (l(((Collection) result)) == l(vars))
        return ai_matchMulti(vars, allToString(((Collection) result)), matches);
    return null;
  }

  public static boolean allDollarVars(Collection<String> l) {
    if (l != null)
      for (String s : l) if (!isDollarVar(s))
        return false;
    return true;
  }

  public static boolean ai_matchMulti(List<String> vars, List<String> values, Map<String, String> matches) {
    int n = l(vars);
    if (n != l(values))
      return false;
    Map<String, String> newMatches = new HashMap();
    for (int i = 0; i < n; i++) if (!strictPutIC(newMatches, vars.get(i), values.get(i)))
      return false;
    return addMapToMapWithoutOverwritingIC(matches, newMatches);
  }

  public static void withCancelPoint(VF1<CancelPoint> r) {
    CancelPoint cp = newCancelPoint();
    try {
      try {
        callF(r, cp);
      } catch (Throwable e) {
        e = innerException(e);
        if (!(e instanceof CancelToCancelPoint && ((CancelToCancelPoint) e).cp == cp))
          rethrow(e);
      }
    } finally {
      _close(cp);
    }
  }

  public static RuntimeException cancelTo(CancelPoint cp) {
    if (cp.closed)
      throw fail("cancel point closed");
    throw new CancelToCancelPoint(cp);
  }

  public static List<String> tok_splitAtVerticalBar(String s) {
    if (!contains(s, '|'))
      return ll(s);
    return splitAtTokens(javaTokPlusBrackets2(s), tok_splitAtVerticalBar_list);
  }

  public static List<String> tok_splitAtVerticalBar_list = ll("|");

  public static void nlLogic_flexMatch_iterate_vbar(String pat, String input, NLLogicChecker_v2.Matching m, Runnable onMatch, VarMatches oldMatches) {
    for (String pat2 : tok_splitAtVerticalBar(pat)) nlLogic_flexMatch_iterate(pat2, input, m, onMatch, oldMatches);
  }

  public static <A, B> void mapPutMultipleKeys(Map<A, B> map, B value, A... keys) {
    if (map == null)
      return;
    for (A key : keys) map.put(key, value);
  }

  public static List<List<String>> tok_marchPatternThroughInput(List<String> patTok, List<String> inputTok) {
    int lp = l(patTok);
    int n = l(inputTok) - lp + 1;
    List<List<String>> out = new ArrayList();
    for (int i = 0; i < n; i += 2) out.add(subList(inputTok, i, i + lp));
    return out;
  }

  public static List<String> javaTokWithAllBrackets(String s) {
    return javaTokPlusBrackets2(s);
  }

  public static boolean hasLock(Lock lock) {
    return ((ReentrantLock) lock).isHeldByCurrentThread();
  }

  public static <A> ArrayList<A> asList_nullIfEmpty(Iterable<A> s) {
    ArrayList<A> l = asList(s);
    return empty(l) ? null : l;
  }

  public static int nlLogic_failureLevel_calc(ExecutedRule r) {
    if (!(r.rule instanceof FailedRule))
      return 0;
    FailedRule fr = (FailedRule) (r.rule);
    Exp e = fr.rule.in, lookingFor = fr.remainingCondition;
    int n = l(nlLogic_unrollAnd(e)) - l(nlLogic_unrollAnd(lookingFor)) + 1;
    return n <= 0 ? -1 : n;
  }

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

  public static Map<String, String> matchDollarVarsIC_underscores(String pat, String s) {
    try {
      if (pat == null || s == null)
        return null;
      List<String> vars = new ArrayList();
      String pat2 = dropSuffix("...", dollarVarsToStars_underscoresWithDollarQ(pat, vars));
      s = dropSuffix("...", s);
      Matches m = new Matches();
      if (!match(pat2, s, m))
        return null;
      Map<String, String> map = new HashMap();
      int v = 0;
      for (int i = 0; i < l(m.m); ) {
        String var = vars.get(v++);
        boolean quoted = startsWith(var, "$_q_");
        if (quoted) {
          String value = m.m[i++];
          if (!isQuoted(value))
            return null;
          var = "$" + substring(var, 4);
          if (!strictPutIC(map, var, unquote(value)))
            return null;
        } else {
          int n = underscoreWordCount(var);
          String value = joinWithSpace(subStringArray(m.m, i, i + n));
          if (!strictPutIC(map, var, value))
            return null;
          i += n;
        }
      }
      return map;
    } catch (Throwable __e) {
      _handleException(__e);
    }
    return null;
  }

  public static String replaceVars(String s, Map<String, String> map) {
    return empty(map) ? s : join(replaceVars(javaTok(s), map));
  }

  public static List<String> replaceVars(List<String> tok, Map<String, String> map) {
    if (empty(map))
      return tok;
    tok = cloneList(tok);
    for (String var : keys(map)) jreplace(tok, var, map.get(var));
    return tok;
  }

  public static Map<String, String> matchDollarVarsIC(String pat, String s) {
    if (s == null)
      return null;
    return matchDollarVarsIC(pat, parse3_cachedInput(s));
  }

  public static Map<String, String> matchDollarVarsIC(String pat, List<String> tokS) {
    if (pat == null || tokS == null)
      return null;
    List<String> vars = new ArrayList();
    String pat2 = dollarVarsToStars(pat, vars);
    Matches m = new Matches();
    if (!match3(pat2, tokS, m))
      return null;
    Map<String, String> map = new HashMap();
    for (int i = 0; i < l(m.m); i++) {
      String var = vars.get(i);
      String value = m.get(i);
      String oldValue = map.get(var);
      if (oldValue == null)
        map.put(var, value);
      else if (neqic(oldValue, value))
        return null;
    }
    return map;
  }

  public static String dm_getInterestingString() {
    return (String) callCreatorOpt("getInterestingString");
  }

  public static JTextField jcenteredtextfield() {
    return jCenteredTextField();
  }

  public static JTextField jcenteredtextfield(String text) {
    return jCenteredTextField(text);
  }

  public static <A extends JComponent> A setToolTip(A c, Object toolTip) {
    return setToolTipText(c, toolTip);
  }

  public static <A extends JComponent> A setToolTip(Object toolTip, A c) {
    return setToolTipText(c, toolTip);
  }

  public static JCheckBox jcheckbox() {
    return jCheckBox();
  }

  public static JCheckBox jcheckbox(boolean checked) {
    return jCheckBox(checked);
  }

  public static JCheckBox jcheckbox(String text, boolean checked) {
    return jCheckBox(text, checked);
  }

  public static JCheckBox jcheckbox(String text) {
    return jCheckBox(text);
  }

  public static JCheckBox jcheckbox(JCheckBox cb, String text) {
    return jcheckbox(text, isChecked(cb));
  }

  public static void onChangeAndNow(JComponent c, Object r) {
    onUpdateAndNow(c, r);
  }

  public static void onChangeAndNow(List<? extends JComponent> l, Object r) {
    onUpdateAndNow(l, r);
  }

  public static void setEnabled(final JComponent c, final boolean enable) {
    if (c != null) {
      swing(new Runnable() {

        public void run() {
          try {
            c.setEnabled(enable);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

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

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

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

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

  public static ReliableSingleThread rstWithDelay(final int delay, final Runnable r) {
    return new ReliableSingleThread(new Runnable() {

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

      public String toString() {
        return "sleep(delay);\r\n    callF(r);";
      }
    });
  }

  public static ReliableSingleThread rstWithDelay(double seconds, Runnable r) {
    return rstWithDelay(toMS_int(seconds), r);
  }

  public static boolean getServerTranspiled2_allowLocalFallback = true, getServerTranspiled2_localFallbackVerbose = true;

  public static String getServerTranspiled2(String id) {
    String transpiled = loadCachedTranspilation(id);
    String md5 = null;
    if (machineIsOffline() || isOfflineMode() || isLocalSnippet(id))
      return transpiled;
    if (transpiled != null)
      md5 = md5(transpiled);
    String transpiledSrc;
    try {
      transpiledSrc = getServerTranspiled(formatSnippetID(id), md5);
    } catch (Throwable e) {
      if (!getServerTranspiled2_allowLocalFallback)
        rethrow(e);
      printExceptionShort(e);
      if (getServerTranspiled2_localFallbackVerbose)
        print("Fallback to local code");
      return transpiled;
    }
    if (eq(transpiledSrc, "SAME")) {
      if (!isTrue(loadPage_silent.get()))
        print("SAME");
      return transpiled;
    }
    return transpiledSrc;
  }

  public static List<String> findMainClass(List<String> tok) {
    for (List<String> c : reversedList(allClasses(tok))) {
      String name = getClassDeclarationName(c);
      if (eq(name, "main") || name.startsWith("x"))
        return c;
    }
    return findBlock("m {", tok);
  }

  public static boolean useDummyMainClasses() {
    return true;
  }

  public static boolean tok_classHasModifier(List<String> classDecl, String modifier) {
    if (classDecl == null)
      return false;
    int i = classDecl.indexOf("class");
    return subList(classDecl, 0, i).contains(modifier);
  }

  public static boolean javaCompileToJar_useRAMDisk;

  public static File javaCompileToJar_optionalRename(String src, File destJar, String progIDForRename) {
    return javaCompileToJar_optionalRename(src, "", destJar, progIDForRename);
  }

  public static synchronized File javaCompileToJar_optionalRename(String src, String dehlibs, File destJar, String progIDForRename) {
    return javaCompileToJar_optionalRename(src, dehlibs, destJar, progIDForRename, null);
  }

  public static synchronized File javaCompileToJar_optionalRename(String src, String dehlibs, File destJar, String progIDForRename, String progID) {
    String javaTarget = null;
    String dummyClass = "main";
    if (progIDForRename != null) {
      dummyClass = dummyMainClassName(progIDForRename);
      src += "\nclass " + dummyClass + "{}";
    }
    String md5 = md5(src);
    File jar = destJar;
    Class j = getJavaX();
    if (javaTarget != null)
      setOpt(j, "javaTarget", javaTarget);
    File srcDir = tempDir();
    String className = "main";
    String fileName = dummyClass + ".java";
    List<String> tok = javaTok(src);
    String packageName = tok_packageName(tok);
    if (packageName != null)
      fileName = packageName.replace(".", "/") + "/" + tok_firstClassName(tok) + ".java";
    File mainJava = new File(srcDir, fileName);
    saveTextFile(mainJava, src);
    File classesDir = javaCompileToJar_useRAMDisk ? tempDirPossiblyInRAMDisk() : tempDir();
    try {
      List<File> libraries = new ArrayList();
      Matcher m = Pattern.compile("\\d+").matcher(dehlibs);
      while (m.find()) {
        String libID = m.group();
        assertTrue(isSnippetID(libID));
        libraries.add(loadLibraryOrSrcLib(libID));
      }
      libraries.add(pathToJavaxJar());
      String compilerOutput;
      try {
        compilerOutput = (String) call(j, "compileJava", srcDir, libraries, classesDir);
      } catch (Throwable e) {
        compilerOutput = (String) get(getJavaX(), "javaCompilerOutput");
        throw fail("Compile Error. " + compilerOutput + " " + e);
      }
      if (eq(trim(compilerOutput), "Annotation processing got disabled, since it requires a 1.6 compliant JVM")) {
        print(compilerOutput);
        compilerOutput = "";
      }
      if (nempty(compilerOutput)) {
        print("Compiler said: " + compilerOutput);
      }
      if (!anyFileWithExtensionInDir(classesDir, ".class"))
        throw fail("No classes generated");
      saveTextFile(new File(classesDir, "main.java"), src);
      if (nempty(dehlibs))
        saveTextFile(new File(classesDir, "libraries"), dehlibs);
      saveTextFile(new File(classesDir, "progID"), progID);
      dir2zip_recurse_verbose = false;
      int n = dir2zip_recurse(classesDir, jar);
      return jar;
    } finally {
      if (isInRAMDisk(classesDir))
        deleteDirectory(classesDir);
    }
  }

  public static void touchFile(File file) {
    try {
      closeRandomAccessFile(newRandomAccessFile(mkdirsForFile(file), "rw"));
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static File getCacheProgramDir() {
    return getCacheProgramDir(getProgramID());
  }

  public static File getCacheProgramDir(String snippetID) {
    return new File(userHome(), "JavaX-Caches/" + formatSnippetIDOpt(snippetID));
  }

  public static int _hashCode(Object a) {
    return a == null ? 0 : a.hashCode();
  }

  public static String quoteBorderless(Object o) {
    if (o == null)
      return "null";
    return quoteBorderless(str(o));
  }

  public static String quoteBorderless(String s) {
    if (s == null)
      return "null";
    StringBuilder out = new StringBuilder((int) (l(s) * 1.5));
    quoteBorderless_impl(s, out);
    return out.toString();
  }

  public static void quoteBorderless_impl(String s, StringBuilder out) {
    int l = s.length();
    for (int i = 0; i < l; i++) {
      char c = s.charAt(i);
      if (c == '\\' || c == '"')
        out.append('\\').append(c);
      else if (c == '\r')
        out.append("\\r");
      else if (c == '\n')
        out.append("\\n");
      else
        out.append(c);
    }
  }

  public static int hashCodeFor(Object a) {
    return a == null ? 0 : a.hashCode();
  }

  public static Map<String, String> matchDollarVarsIC_plusBrackets(String pat, String s) {
    if (pat == null || s == null)
      return null;
    List<String> vars = new ArrayList();
    String pat2 = dollarVarsToStars(pat, vars);
    Matches m = new Matches();
    if (!match3_plusBrackets(pat2, s, m))
      return null;
    Map<String, String> map = new HashMap();
    for (int i = 0; i < l(m.m); i++) {
      String var = vars.get(i);
      String value = m.get(i);
      if (startsWith(var, "$_q_")) {
        if (!isQuoted(value))
          return null;
        var = "$" + substring(var, 4);
        value = unquote(value);
      }
      if (!strictPutIC(map, var, value))
        return null;
    }
    return map;
  }

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

  public static <A> Set<A> synchroSet(Set<A> set) {
    return Collections.synchronizedSet(set);
  }

  public static void fixACCInClassLoader(Object o) {
    try {
      AccessControlContext acc = vm_globalACC();
      if (acc != null)
        replaceACCInClassLoader(o, acc);
    } catch (Throwable __e) {
      _handleException(__e);
    }
  }

  public static String systemHashCodeHex(Object o) {
    return intToHex(identityHashCode(o));
  }

  public static <A> Iterator<A> iterator(Iterable<A> c) {
    return c == null ? emptyIterator() : c.iterator();
  }

  public static UnsupportedOperationException unsupportedOperation() {
    throw new UnsupportedOperationException();
  }

  public static long sysTime() {
    return sysNow();
  }

  public static void change() {
    callOpt(getOptMC("mainConcepts"), "allChanged");
  }

  public static Map mapValues(Object func, Map map) {
    Map m = similarEmptyMap(map);
    for (Object key : keys(map)) m.put(key, callF(func, map.get(key)));
    return m;
  }

  public static Map mapValues(Map map, Object func) {
    return mapValues(func, map);
  }

  public static <A, B> Set<A> keySet(Map<A, B> map) {
    return map == null ? new HashSet() : map.keySet();
  }

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

  public static <A, B> Set<A> keySet(MultiMap<A, B> mm) {
    return mm.keySet();
  }

  public static boolean match3(String pat, String s) {
    return match3(pat, s, null);
  }

  public static boolean match3(String pat, String s, Matches matches) {
    if (pat == null || s == null)
      return false;
    return match3(pat, parse3_cachedInput(s), matches);
  }

  public static boolean match3(String pat, List<String> toks, Matches matches) {
    List<String> tokpat = parse3_cachedPattern(pat);
    return match3(tokpat, toks, matches);
  }

  public static boolean match3(List<String> tokpat, List<String> toks, Matches matches) {
    String[] m = match2(tokpat, toks);
    if (m == null)
      return false;
    if (matches != null)
      matches.m = m;
    return true;
  }

  public static Class _run(String progID, String... args) {
    Class main = hotwire(progID);
    callMain(main, args);
    return main;
  }

  public static void cancelAndInterruptThread(Thread t) {
    if (t == null)
      return;
    cancelThread(t);
    t.interrupt();
  }

  public static <A, B> Map<A, B> putAll(Map<A, B> a, Map<? extends A, ? extends B> b) {
    if (a != null)
      a.putAll(b);
    return a;
  }

  public static <A> HashSet<A> litset(A... items) {
    return lithashset(items);
  }

  public static String afterLastSpace(String s) {
    return s == null ? null : substring(s, s.lastIndexOf(' ') + 1);
  }

  public static boolean endsWithIC(String a, String b) {
    return endsWithIgnoreCase(a, b);
  }

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

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

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

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

  public static <A> A findByField(Collection<A> c, String field, Object value) {
    for (A a : c) if (eq(getOpt(a, field), value))
      return a;
    return null;
  }

  public static List<String> ai_staticVars() {
    return ll("telegram_msg_tl", "telegram_recentHistory_tl", "ai_context_tl");
  }

  public static Pair<List<String>, Object> prepareEvalWithDollarVars_assertAllVarsSet(String code, Map<String, String> values) {
    Set<String> vars = tok_dollarVarTokens(javaTok(code));
    for (String v : vars) if (!containsKey(values, v))
      throw fail("No value for " + v);
    return prepareEvalWithDollarVars(code, vars);
  }

  public static boolean hasField(Object o, String field) {
    return findField2(o, field) != null;
  }

  public static void set(Object o, String field, Object value) {
    if (o instanceof Class)
      set((Class) o, field, value);
    else
      try {
        Field f = set_findField(o.getClass(), field);
        f.setAccessible(true);
        smartSet(f, o, value);
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
  }

  public static void set(Class c, String field, Object value) {
    try {
      Field f = set_findStaticField(c, field);
      f.setAccessible(true);
      smartSet(f, null, value);
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }

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

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

  public static Object evalWithDollarVars_step2(Pair<List<String>, Object> varsAndClass, final Map<String, String> values) {
    return call(varsAndClass.b, "calc", toObjectArray(map(varsAndClass.a, new F1<String, String>() {

      public String get(String var) {
        try {
          return mapGet(values, var);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "mapGet(values, var)";
      }
    })));
  }

  public static List<String> quotelessJavaTok(String s) {
    ArrayList<String> tok = 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;
      }
      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 (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
        ++j;
      tok.add(javaTok_substringC(s, i, j));
      ++n;
      i = j;
    }
    if ((tok.size() % 2) == 0)
      tok.add("");
    return tok;
  }

  public static boolean regexpICFind(String pat, String s) {
    return regexpIC(pat, s).find();
  }

  public static Random random_random = new Random();

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

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

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

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

  public static int random(int min, int max) {
    return min + random(max - min);
  }

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

  public static <A> A random(Collection<A> c) {
    if (c instanceof List)
      return random((List<A>) c);
    int i = random(l(c));
    return collectionGet(c, i);
  }

  public static boolean nlLogic_matchMultiplePatterns(NLLogicChecker_v2 c, List<String> patterns, String s, NLLogicChecker_v2.Matching m) {
    return nlLogic_matchMultiplePatterns(c, patterns, s, m.matches);
  }

  public static boolean nlLogic_matchMultiplePatterns(NLLogicChecker_v2 c, List<String> patterns, String s, Map<String, String> matches) {
    for (String pat : unnull(patterns)) if (c.matcher.match(pat, s, matches))
      return true;
    return false;
  }

  public static List<String> javaTokWithBrackets(String s) {
    return javaTokPlusBrackets(s);
  }

  public static List<String> mapReplaceVars2(List<String> patterns, final Map<String, String> map) {
    return map(new F1<String, String>() {

      public String get(String pat) {
        try {
          return replaceVars(pat, map);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "replaceVars(pat, map)";
      }
    }, patterns);
  }

  public static List<String> nlTok5(String s) {
    List<String> tok = new ArrayList();
    int l = l(s);
    int i = 0;
    while (i < l) {
      int j = i;
      char c;
      String cc;
      while (j < l) {
        c = s.charAt(j);
        cc = s.substring(j, Math.min(j + 2, l));
        if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
          ++j;
        else if (cc.equals("/*")) {
          do ++j; while (j < l && !s.substring(j, Math.min(j + 2, l)).equals("*/"));
          j = Math.min(j + 2, l);
        } else if (cc.equals("//")) {
          do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
        } else
          break;
      }
      tok.add(s.substring(i, j));
      i = j;
      if (i >= l)
        break;
      c = s.charAt(i);
      cc = s.substring(i, Math.min(i + 2, l));
      if (c == '“' || c == '”')
        c = '"';
      if (c == '"') {
        char opener = c;
        ++j;
        while (j < l) {
          char _c = s.charAt(j);
          if (_c == '“' || _c == '”')
            _c = '"';
          if (_c == opener) {
            ++j;
            break;
          } else if (s.charAt(j) == '\\' && j + 1 < l)
            j += 2;
          else
            ++j;
        }
        if (j - 1 >= i + 1) {
          tok.add(opener + s.substring(i + 1, j - 1) + opener);
          i = j;
          continue;
        }
      } else if (Character.isJavaIdentifierStart(c))
        do ++j; while (j < l && Character.isJavaIdentifierPart(s.charAt(j)));
      else if (Character.isDigit(c))
        do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      else if (cc.equals("[[")) {
        do ++j; while (j + 1 < l && !s.substring(j, j + 2).equals("]]"));
        j = Math.min(j + 2, l);
      } else if (cc.equals("[=") && i + 2 < l && s.charAt(i + 2) == '[') {
        do ++j; while (j + 2 < l && !s.substring(j, j + 3).equals("]=]"));
        j = Math.min(j + 3, l);
      } else if (s.substring(j, Math.min(j + 3, l)).equals("..."))
        j += 3;
      else if (c == '$' || c == '#')
        do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      else
        ++j;
      tok.add(s.substring(i, j));
      i = j;
    }
    if ((tok.size() % 2) == 0)
      tok.add("");
    return tok;
  }

  public static <A, B> A eitherAOpt(Either<A, B> e) {
    return e != null && e.isA() ? e.a() : null;
  }

  public static Set<Thread> evalWithTimeout_inTime = synchroSet();

  public static Set<Thread> evalWithTimeout_allThreads = newWeakHashSet();

  public static ThreadLocal<String> evalWithTimeout_threadName = new ThreadLocal();

  public static Either<Object, Thread> evalWithTimeout(int timeoutMS, final Object r) {
    final Flag done = new Flag();
    final Flag doneWaiting = new Flag();
    final Var var = new Var();
    final Var<Throwable> error = new Var();
    Thread t = newThread(getAndClearThreadLocal(evalWithTimeout_threadName), new Runnable() {

      public void run() {
        try {
          try {
            try {
              var.set(callF(r));
            } finally {
              evalWithTimeout_allThreads.remove(currentThread());
            }
          } catch (Throwable e) {
            error.set(e);
            if (doneWaiting.isUp())
              printStackTrace(e);
          } finally {
            done.raise();
          }
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "try {\r\n      try {\r\n        var.set(callF(r));\r\n      } finally {\r\n        ev...";
      }
    });
    beforeDelegatingToThread(t);
    try {
      startThread(t);
      evalWithTimeout_inTime.add(t);
      evalWithTimeout_allThreads.add(t);
      try {
        done.waitUntilUp(timeoutMS);
        doneWaiting.raise();
      } finally {
        evalWithTimeout_inTime.remove(t);
      }
      if (!done.isUp()) {
        print("Cancelling thread (timeout)");
        cancelAndInterruptThread(t);
        return either2(t);
      }
      if (error.get() != null)
        rethrow(error.get());
      return either1(var.get());
    } finally {
      afterDelegatingToThread(t);
    }
  }

  public static Either<Object, Thread> evalWithTimeout(double timeoutSeconds, final Object r) {
    return evalWithTimeout(toMS_int(timeoutSeconds), r);
  }

  public static <A> IterableIterator<A> enumerationToIterator(final Enumeration<A> e) {
    return e == null ? null : new IterableIterator() {

      public boolean hasNext() {
        return e.hasMoreElements();
      }

      public A next() {
        return e.nextElement();
      }
    };
  }

  public static String ai_lookupCurlyCheatSheet(String s) {
    if (contains(s, "{"))
      return s;
    for (String line : mL(ai_language() + " | Curly parses cheat sheet")) if (match(line, s))
      return line;
    return s;
  }

  public static PTElement ai_parseToCulledTree(String input) {
    return ai_cullParseTree(ai_parseToTreeWithCurlyPhrases(input));
  }

  public static List<PTElement> ai_scanParseTreeForCategory(PTElement e, String category) {
    List<PTElement> out = new ArrayList();
    ai_scanParseTreeForCategory_scan(e, category, out);
    return out;
  }

  public static void ai_scanParseTreeForCategory_scan(PTElement e, String category, List<PTElement> out) {
    if (e == null)
      return;
    if (e instanceof HaveCategory)
      if (eq(((HaveCategory) e).category, category))
        out.add(((HaveCategory) e));
    for (PTElement child : unnull(e.children)) ai_scanParseTreeForCategory_scan(child, category, out);
  }

  public static PTElement ai_parseTree_simplifyNode(PTElement e) {
    if (e == null)
      return null;
    e = ai_parseTree_descendToComposite(e);
    if (e == null)
      return null;
    if (e instanceof ChoosePart) {
      ai_Reconstructed r = ((ChoosePart) e).reconstruction;
      WeightedProduction prod = r.production;
      String hint = prod.simplificationHint;
      if (eq(hint, "L"))
        return first(e.children);
      if (eq(hint, "R"))
        return second(e.children);
    }
    return e;
  }

  public static int parseIntOpt(String s) {
    return isInteger(s) ? parseInt(s) : 0;
  }

  public static List<String> parse3(String s) {
    return dropPunctuation(javaTokPlusPeriod(s));
  }

  public static String[] find2(List<String> pat, List<String> tok) {
    for (int idx = 0; idx < tok.size(); idx += 2) {
      String[] result = find2(pat, tok, idx);
      if (result != null)
        return result;
    }
    return null;
  }

  public static String[] find2(List<String> pat, List<String> tok, int idx) {
    if (idx + pat.size() > tok.size())
      return null;
    List<String> result = new ArrayList();
    for (int i = 1; i < pat.size(); i += 2) {
      String p = pat.get(i), t = tok.get(idx + i);
      if (eq(p, "*"))
        result.add(t);
      else if (!p.equalsIgnoreCase(t))
        return null;
    }
    return toStringArray(result);
  }

  public static Map safeUnstructureMap(String s) {
    return (Map) safeUnstructure(s);
  }

  public static <A> boolean canPutAllStrictlyIC(Map<A, String> map, Map<A, String> map2) {
    {
      final Map<A, String> __1817 = unnull(map2);
      for (A key : keys(__1817)) {
        String value = __1817.get(key);
        if (!canPutStrictlyIC(map, key, value))
          return false;
      }
    }
    return true;
  }

  public static String dropSuffixAndTrim(String suffix, String s) {
    return trim(dropSuffix(suffix, s));
  }

  public static boolean shortClassNameIs(Object o, String name) {
    return eq(shortClassName(o), name);
  }

  public static String strGet(Object o, String field) {
    return str(get(o, field));
  }

  public static CancelPoint newCancelPoint() {
    return new CancelPoint();
  }

  public static boolean nlLogic_flexMatch_iterate_debug;

  public static void nlLogic_flexMatch_iterate(String pat, String input, NLLogicChecker_v2.Matching m, Runnable onMatch, VarMatches oldMatches) {
    if (nlLogic_flexMatch_iterate_debug)
      print("nlLogic_flexMatch_iterate " + pat + " / " + input);
    List<String> tokPat = parse3_cachedPattern(pat), tokInput = parse3_cachedInput(input);
    List<Integer> varIndices = new ArrayList();
    for (int i = 1; i < l(tokPat); i += 2) {
      String t = tokPat.get(i);
      if (isDollarVar(t))
        varIndices.add(i);
      else if (isIdentifier(t) && !cicAtOddPosition(tokInput, t)) {
        if (nlLogic_flexMatch_iterate_debug)
          print("Crucial word fail (" + t + "): " + pat + " / " + input);
        return;
      }
    }
    if (nlLogic_flexMatch_iterate_debug)
      printStructs("varIndices", varIndices, "tokPat", tokPat, "tokInput", tokInput);
    List<List<String>> spreadInputs = ai_spreadCertainIndices(tokPat, tokInput, varIndices);
    for (List<String> tok : spreadInputs) {
      if (nlLogic_flexMatch_iterate_debug)
        print("Testing spread input: " + sfu(tok));
      Map<String, String> newMatches = matchDollarVarsIC(pat, tok);
      if (newMatches != null && addMapToMapWithoutOverwritingIC(m.matches, newMatches))
        try {
          callF(onMatch);
        } finally {
          m.matches = oldMatches;
        }
    }
  }

  public static String dollarVarsToStars_underscoresWithDollarQ(String s) {
    return dollarVarsToStars_underscoresWithDollarQ(s, null);
  }

  public static String dollarVarsToStars_underscoresWithDollarQ(String s, List<String> varNames_out) {
    return join(dollarVarsToStars_underscoresWithDollarQ(javaTok(s), varNames_out));
  }

  public static List<String> dollarVarsToStars_underscoresWithDollarQ(List<String> tok, List<String> varNames_out) {
    for (int i = 1; i < l(tok); i += 2) {
      String t = tok.get(i);
      if (isDollarVar(t)) {
        listAdd(varNames_out, t);
        tok.set(i, t.startsWith("$_q_") ? "*" : joinWithSpace(rep("*", underscoreWordCount(t))));
      } else if (eq(t, "*"))
        listAdd(varNames_out, "*");
    }
    return tok;
  }

  public static int underscoreWordCount(String s) {
    return countChar(s, '_') + 1;
  }

  public static String[] subStringArray(String[] 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 String[0];
    String[] x = new String[end - start];
    System.arraycopy(b, start, x, 0, end - start);
    return x;
  }

  public static Map<String, List<String>> parse3_cachedInput_cache = synchronizedMRUCache(100);

  public static synchronized List<String> parse3_cachedInput(String s) {
    List<String> tok = parse3_cachedInput_cache.get(s);
    if (tok == null)
      parse3_cachedInput_cache.put(s, tok = parse3(s));
    return tok;
  }

  public static String dollarVarsToStars(String s) {
    return dollarVarsToStars(s, null);
  }

  public static String dollarVarsToStars(String s, List<String> varNames_out) {
    List<String> tok = javaTok(s);
    for (int i = 1; i < l(tok); i += 2) {
      String t = tok.get(i);
      if (isDollarVar(t)) {
        listAdd(varNames_out, t);
        tok.set(i, "*");
      } else if (eq(t, "*"))
        listAdd(varNames_out, "*");
    }
    return join(tok);
  }

  public static boolean neqic(String a, String b) {
    return !eqic(a, b);
  }

  public static <A> A callCreatorOpt(String functionName, Object... args) {
    return (A) callOpt(creator(), functionName, args);
  }

  public static JTextField jCenteredTextField() {
    return setHorizontalAlignment(JTextField.CENTER, jtextfield());
  }

  public static JTextField jCenteredTextField(String text) {
    JTextField tf = jCenteredTextField();
    setText(tf, text);
    return tf;
  }

  public static <A extends JComponent> A setToolTipText(final A c, final Object toolTip) {
    if (c == null)
      return null;
    {
      swing(new Runnable() {

        public void run() {
          try {
            String s = nullIfEmpty(str(toolTip));
            if (neq(s, c.getToolTipText()))
              c.setToolTipText(s);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "String s = nullIfEmpty(str(toolTip));\r\n    if (neq(s, c.getToolTipText()))\r\n ...";
        }
      });
    }
    return c;
  }

  public static <A extends JComponent> A setToolTipText(Object toolTip, A c) {
    return setToolTipText(c, toolTip);
  }

  public static void onUpdateAndNow(JComponent c, final Object r) {
    onUpdate(c, r);
    callF(r);
  }

  public static void onUpdateAndNow(List<? extends JComponent> l, Object r) {
    for (JComponent c : l) onUpdate(c, r);
    callF(r);
  }

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

  public static String loadCachedTranspilation(String id) {
    try {
      return loadTextFilePossiblyGZipped(getCachedTranspilationFile(id));
    } catch (Throwable __e) {
      return null;
    }
  }

  public static boolean machineIsOffline() {
    return isFalse(callF(vmGeneralMap_get("areWeOnline")));
  }

  public static boolean isOfflineMode() {
    return eq("1", trim(loadProgramTextFile("#1005806", "offline-mode")));
  }

  public static boolean isLocalSnippet(String snippetID) {
    return isLocalSnippetID(snippetID);
  }

  public static boolean isLocalSnippet(long snippetID) {
    return isLocalSnippetID(snippetID);
  }

  public static String getServerTranspiled(String snippetID) {
    return getServerTranspiled(snippetID, null);
  }

  public static String getServerTranspiled(String snippetID, String expectedMD5) {
    try {
      long id = parseSnippetID(snippetID);
      String text = loadPage_utf8(tb_mainServer() + "/tb-int/get-transpiled.php?raw=1&withlibs=1&id=" + id + "&utf8=1" + (l(expectedMD5) > 1 ? "&md5=" + urlencode(expectedMD5) : "") + standardCredentials());
      if (nempty(text) && neq(text, "SAME"))
        saveTranspiledCode(snippetID, text);
      return text;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static void printExceptionShort(Throwable e) {
    print(exceptionToStringShort(e));
  }

  public static HashSet<String> allClasses_keywords = lithashset("class", "interface", "enum", "sclass", "sinterface", "record", "srecord");

  public static List<List<String>> allClasses(List<String> tok) {
    List<List<String>> l = new ArrayList();
    for (int i = 1; i < tok.size(); i += 2) {
      if (eq(tok.get(i), "{"))
        i = findEndOfBlock(tok, i) - 1;
      else if (allClasses_keywords.contains(tok.get(i)) && (i == 1 || !eqGetOneOf(tok, i - 2, ".", "include"))) {
        int j = i;
        while (j < tok.size() && !tok.get(j).equals("{")) j += 2;
        j = findEndOfBlock(tok, j) + 1;
        i = leftScanModifiers(tok, i);
        l.add(tok.subList(i - 1, Math.min(tok.size(), j)));
        i = j - 2;
      }
    }
    return l;
  }

  public static List<List<String>> allClasses(String text) {
    return allClasses(javaTok(text));
  }

  public static String getClassDeclarationName(List<String> tok) {
    if (tok != null)
      for (int i = 1; i + 2 < tok.size(); i += 2) if (allClasses_keywords.contains(tok.get(i)) && isIdentifier(tok.get(i + 2)))
        return tok.get(i + 2);
    return null;
  }

  public static List<String> findBlock(String pat, List<String> tok) {
    List<String> tokpat = javaTok(pat);
    int i = findCodeTokens(tok, toStringArray(codeTokensOnly(tokpat)));
    if (i < 0)
      return null;
    int bracketIdx = i + tokpat.size() - 3;
    assertEquals("{", tok.get(bracketIdx));
    int endIdx = findEndOfBlock(tok, bracketIdx);
    return subList(tok, i - 1, endIdx + 1);
  }

  public static String dummyMainClassName(String progID) {
    return "m" + psI(progID);
  }

  public static File tempDir() {
    return makeTempDir();
  }

  public static String tok_packageName(List<String> tok) {
    int i = jfind(tok, "package");
    if (i < 0)
      return "";
    i += 2;
    int j = jfind(tok, i, ";");
    if (j < 0)
      return "";
    return join(codeTokensOnly(subList(tok, i - 1, j)));
  }

  public static String tok_firstClassName(List<String> tok) {
    int i = jfind(tok, "class <id>");
    return i < 0 ? null : tok.get(i + 2);
  }

  public static File tempDirPossiblyInRAMDisk() {
    File f = linux_fileInRamDisk(aGlobalID());
    if (f != null) {
      f.mkdirs();
      return f;
    }
    return makeTempDir();
  }

  public static boolean loadLibraryOrSrcLib_srcLibsEnabled = true;

  public static File loadLibraryOrSrcLib(String snippetID) {
    try {
      long id = parseSnippetID(snippetID);
      boolean srcLib = loadLibraryOrSrcLib_srcLibsEnabled && isMarkedAsSrcLib(snippetID);
      if (srcLib)
        return pairA(hotwire_compile(snippetID));
      File f = DiskSnippetCache_getLibrary(id);
      if (fileSize(f) != 0)
        return f;
      try {
        return loadDataSnippetToFile(snippetID);
      } catch (Throwable e) {
        if (loadLibraryOrSrcLib_srcLibsEnabled && nempty(loadSnippet(snippetID))) {
          markAsSrcLib(snippetID);
          return pairA(hotwire_compile(snippetID));
        }
        throw rethrow(e);
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static File pathToJavaxJar() {
    try {
      int x = latestInstalledJavaX();
      File xfile = new File(userHome(), ".javax/x" + Math.max(x, 30) + ".jar");
      if (!xfile.isFile()) {
        print("Saving " + f2s(xfile));
        String url = "http://tinybrain.de/x30.jar";
        byte[] data = loadBinaryPage(url);
        if (data.length < 1000000)
          throw fail("Could not load " + url);
        saveBinaryFile(xfile.getPath(), data);
      }
      return xfile;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static boolean anyFileWithExtensionInDir(File dir, String ext) {
    return nempty(filesWithExtension(ext, findAllFiles_noDirs(dir)));
  }

  public static boolean dir2zip_recurse_verbose;

  public static int dir2zip_recurse(File inDir, File zip) {
    return dir2zip_recurse(inDir, zip, "");
  }

  public static int dir2zip_recurse(File inDir, File zip, String outPrefix) {
    try {
      mkdirsForFile(zip);
      FileOutputStream fout = newFileOutputStream(zip);
      ZipOutputStream outZip = new ZipOutputStream(fout);
      try {
        return dir2zip_recurse(inDir, outZip, outPrefix, 0);
      } finally {
        outZip.close();
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static int dir2zip_recurse(File inDir, ZipOutputStream outZip) {
    return dir2zip_recurse(inDir, outZip, "", 0);
  }

  public static int dir2zip_recurse(File inDir, ZipOutputStream outZip, String outPrefix, int level) {
    try {
      if (++level >= 20)
        throw fail("woot? 20 levels in zip?");
      List<File> files = new ArrayList();
      for (File f : listFiles(inDir)) files.add(f);
      int n = 0;
      sortFilesByName(files);
      for (File f : files) {
        if (f.isDirectory()) {
          print("dir2zip_recurse: Scanning " + f.getAbsolutePath());
          n += dir2zip_recurse(f, outZip, outPrefix + f.getName() + "/", level);
        } else {
          if (dir2zip_recurse_verbose)
            print("Copying " + f.getName());
          outZip.putNextEntry(new ZipEntry(outPrefix + f.getName()));
          InputStream fin = new FileInputStream(f);
          copyStream(fin, outZip);
          fin.close();
          ++n;
        }
      }
      return n;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static boolean isInRAMDisk(File f) {
    return startsWith(f2s(f), "/dev/shm");
  }

  public static void deleteDirectory(File dir) {
    deleteDirectory(dir, false, false);
  }

  public static void deleteDirectory(File dir, boolean verbose, boolean testRun) {
    deleteAllFilesInDirectory(dir, verbose, testRun);
    if (verbose)
      print((testRun ? "Would delete " : "Deleting ") + dir.getAbsolutePath());
    if (!testRun)
      dir.delete();
  }

  public static void closeRandomAccessFile(RandomAccessFile f) {
    if (f != null)
      try {
        f.close();
        callJavaX("dropIO", f);
      } catch (Throwable e) {
        printStackTrace(e);
      }
  }

  public static RandomAccessFile newRandomAccessFile(File path, String mode) throws IOException {
    boolean forWrite = mode.indexOf('w') >= 0;
    if (forWrite)
      mkdirsForFile(path);
    RandomAccessFile f = new RandomAccessFile(path, mode);
    callJavaX("registerIO", f, path, forWrite);
    return f;
  }

  public static boolean match3_plusBrackets(String pat, String s) {
    return match3_plusBrackets(pat, s, null);
  }

  public static boolean match3_plusBrackets(String pat, String s, Matches matches) {
    if (pat == null || s == null)
      return false;
    return match3_plusBrackets(pat, parse3_plusBrackets(s), matches);
  }

  public static boolean match3_plusBrackets(String pat, List<String> toks, Matches matches) {
    List<String> tokpat = parse3_cachedPattern(pat);
    return match3(tokpat, toks, matches);
  }

  public static AccessControlContext vm_globalACC() {
    return vm_generalMap_get("Global ACC");
  }

  public static void replaceACCInClassLoader(Object o, AccessControlContext newACC) {
    ClassLoader cl = getClassLoaderOrSame(o);
    if (cl instanceof URLClassLoader) {
      try {
        setOpt(cl, "acc", newACC);
        try {
          setOpt(getOpt(cl, "ucp"), "acc", newACC);
        } catch (Throwable e) {
          printShortException(e);
          if (java10OrHigher())
            if (addDefaultVMOption("--add-opens java.base/jdk.internal.loader=ALL-UNNAMED"))
              print("Please restart the OS");
        }
      } catch (Throwable __e) {
        _handleException(__e);
      }
    }
  }

  public static String intToHex(int i) {
    return bytesToHex(intToBytes(i));
  }

  public static int identityHashCode(Object o) {
    return System.identityHashCode(o);
  }

  public static Iterator emptyIterator() {
    return Collections.emptyIterator();
  }

  public static Map<String, List<String>> parse3_cachedPattern_cache = synchronizedMRUCache(1000);

  public static synchronized List<String> parse3_cachedPattern(String s) {
    List<String> tok = parse3_cachedPattern_cache.get(s);
    if (tok == null)
      parse3_cachedPattern_cache.put(s, tok = parse3(s));
    return tok;
  }

  public static void cancelThread(Thread t) {
    if (t == null)
      return;
    ping();
    synchronized (ping_actions) {
      ping_actions.put(t, "cancelled");
      ping_anyActions = true;
    }
  }

  public static ThreadLocal<Object> ai_context_tl = new ThreadLocal();

  public static Object ai_context() {
    return getThreadLocal(ai_context_tl);
  }

  public static LinkedHashSet<String> tok_dollarVarTokens(List<String> tok) {
    LinkedHashSet<String> vars = new LinkedHashSet();
    for (int i = 1; i < l(tok); i += 2) {
      String t = tok.get(i);
      if (isDollarVar(t))
        vars.add(t);
    }
    return vars;
  }

  public static <A, B> boolean containsKey(Map<A, B> map, A key) {
    return map != null && map.containsKey(key);
  }

  public static Pair<List<String>, Object> prepareEvalWithDollarVars(String code) {
    return prepareEvalWithDollarVars(code, tok_dollarVarTokens(javaTok(code)));
  }

  public static Pair<List<String>, Object> prepareEvalWithDollarVars(String code, Set<String> vars) {
    AutoCloseable __1920 = tempSetThreadLocal(evalJava_prep_args, joinWithComma(map(new F1<String, String>() {

      public String get(String var) {
        try {
          return "S " + var;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "\"S \" + var";
      }
    }, vars)));
    try {
      String src = evalJava_prep(code);
      Object c = evalJava_prep2(src);
      return pair((List<String>) asList(vars), c);
    } finally {
      _close(__1920);
    }
  }

  public static Field findField2(Object o, String field) {
    Class c = o.getClass();
    HashMap<String, Field> map;
    synchronized (getOpt_cache) {
      map = getOpt_cache.get(c);
      if (map == null)
        map = getOpt_makeCache(c);
    }
    if (map == getOpt_special) {
      if (o instanceof Class)
        return findField2_findStaticField((Class) o, field);
    }
    return map.get(field);
  }

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

  public static 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)
        value = ((Long) value).intValue();
      if (type == LinkedHashMap.class && value instanceof Map) {
        f.set(o, asLinkedHashMap((Map) value));
        return;
      }
      try {
        if (f.getType() == Concept.Ref.class) {
          f.set(o, ((Concept) o).new Ref((Concept) value));
          return;
        }
        if (o instanceof Concept.Ref) {
          f.set(o, ((Concept.Ref) o).get());
          return;
        }
      } catch (Throwable _e) {
      }
      throw e;
    }
  }

  public static Matcher regexpIC(String pat, String s) {
    return Pattern.compile(pat, Pattern.CASE_INSENSITIVE).matcher(unnull(s));
  }

  public static Pattern regexpIC(String pat) {
    return Pattern.compile(pat, Pattern.CASE_INSENSITIVE);
  }

  public static <A> A oneOf(List<A> l) {
    return l.isEmpty() ? null : l.get(new Random().nextInt(l.size()));
  }

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

  public static String oneOf(String... l) {
    return oneOf(asList(l));
  }

  public static <A> A collectionGet(Collection<A> c, int idx) {
    if (c == null || idx < 0 || idx >= l(c))
      return null;
    if (c instanceof List)
      return listGet((List<A>) c, idx);
    Iterator<A> it = c.iterator();
    for (int i = 0; i < idx; i++) if (it.hasNext())
      it.next();
    else
      return null;
    return it.hasNext() ? it.next() : null;
  }

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

  public static <A> Set<A> newWeakHashSet() {
    return synchroWeakHashSet();
  }

  public static List beforeDelegatingToThread_operations = synchroList();

  public static void beforeDelegatingToThread(Thread t) {
    for (Object op : cloneList(beforeDelegatingToThread_operations)) pcallF(op, t);
  }

  public static void beforeDelegatingToThread_do(Object f) {
    setAdd(beforeDelegatingToThread_operations, f);
  }

  public static <A, B> Either<A, B> either2(B b) {
    return new Either(2, b);
  }

  public static <A, B> Either<A, B> either1(A a) {
    return new Either(1, a);
  }

  public static List afterDelegatingToThread_operations = synchroList();

  public static void afterDelegatingToThread(Thread t) {
    for (Object op : cloneList(afterDelegatingToThread_operations)) pcallF(op, t);
  }

  public static void afterDelegatingToThread_do(Object f) {
    setAdd(afterDelegatingToThread_operations, f);
  }

  public static String ai_language() {
    return or2(ai_setLanguage_value.get(), "English");
  }

  public static PTElement ai_cullParseTree(PTElement e) {
    if (e == null)
      return e;
    if (!(e instanceof ChoosePart))
      removeAllButFirst(e.children);
    for (PTElement child : unnull(e.children)) ai_cullParseTree(child);
    return e;
  }

  public static PTElement ai_parseToTreeWithCurlyPhrases(String input) {
    List<String> tok = javaTokPlusBrackets(input);
    tok = dropPunctuation(tok);
    Map<String, Map<String, Double>> guessMap = new HashMap();
    AI_BottomUpParser1 parser = new AI_BottomUpParser1();
    parser.wordsToCategories = new DerivedMap(ai_wordToCategories());
    for (int i = 1; i < l(tok); i += 2) {
      String t = tok.get(i);
      if (isCurlyBraced(t)) {
        tok.set(i, t = uncurly(t));
        PTElement tree = ai_parseToTreeWithGuessing(t);
        if (tree != null) {
          if (!(tree instanceof ChooseCategory))
            print("Weird: " + className(tree));
          else {
            for (HaveCategory c : (List<HaveCategory>) (List) tree.children) subHashMap(guessMap, t).put(c.category, c.totalWeight);
          }
        } else {
        }
      } else if (ai_isUncategorizedWord(t))
        guessMap.put(t, ai_guessCategoriesForUnknownWord_weighted(t));
    }
    AutoCloseable __1948 = tempSetThreadLocal(ai_getWordToCategoryWeight_map, guessMap);
    try {
      for (String word : keys(guessMap)) parser.wordsToCategories.put(word, keys(guessMap.get(word)));
      return ai_parseBottomUpToTree(parser, tok);
    } finally {
      _close(__1948);
    }
  }

  public static ChoosePart ai_parseTree_descendToComposite(PTElement e) {
    while (e != null && !(e instanceof ChoosePart)) {
      PTElement e2 = e;
      e = first(e.children);
    }
    return (ChoosePart) e;
  }

  public static List<String> dropPunctuation_keep = litlist("*", "<", ">");

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

  public static String dropPunctuation(String s) {
    return join(dropPunctuation(nlTok(s)));
  }

  public static List<String> javaTokPlusPeriod(String s) {
    List<String> tok = new ArrayList<String>();
    int l = s.length();
    int i = 0;
    while (i < l) {
      int j = i;
      char c;
      String cc;
      while (j < l) {
        c = s.charAt(j);
        cc = s.substring(j, Math.min(j + 2, l));
        if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
          ++j;
        else if (cc.equals("/*")) {
          do ++j; while (j < l && !s.substring(j, Math.min(j + 2, l)).equals("*/"));
          j = Math.min(j + 2, l);
        } else if (cc.equals("//")) {
          do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
        } else
          break;
      }
      tok.add(s.substring(i, j));
      i = j;
      if (i >= l)
        break;
      c = s.charAt(i);
      cc = s.substring(i, Math.min(i + 2, l));
      if (c == (char) 0x201C || c == (char) 0x201D)
        c = '"';
      if (c == '\'' || c == '"') {
        char opener = c;
        ++j;
        while (j < l) {
          char _c = s.charAt(j);
          if (_c == (char) 0x201C || _c == (char) 0x201D)
            _c = '"';
          if (_c == opener) {
            ++j;
            break;
          } else if (s.charAt(j) == '\\' && j + 1 < l)
            j += 2;
          else
            ++j;
        }
        if (j - 1 >= i + 1) {
          tok.add(opener + s.substring(i + 1, j - 1) + opener);
          i = j;
          continue;
        }
      } else if (Character.isJavaIdentifierStart(c))
        do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || s.charAt(j) == '\''));
      else if (Character.isDigit(c))
        do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      else if (cc.equals("[[")) {
        do ++j; while (j + 1 < l && !s.substring(j, j + 2).equals("]]"));
        j = Math.min(j + 2, l);
      } else if (cc.equals("[=") && i + 2 < l && s.charAt(i + 2) == '[') {
        do ++j; while (j + 2 < l && !s.substring(j, j + 3).equals("]=]"));
        j = Math.min(j + 3, l);
      } else if (s.substring(j, Math.min(j + 3, l)).equals("..."))
        j += 3;
      else if (c == '$' || c == '#')
        do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      else
        ++j;
      tok.add(s.substring(i, j));
      i = j;
    }
    if ((tok.size() % 2) == 0)
      tok.add("");
    return tok;
  }

  public static <A> boolean canPutStrictlyIC(Map<A, String> map, A key, String value) {
    if (!(map != null && key != null && value != null))
      return true;
    String old = map.get(key);
    return old == null || eqic(old, value);
  }

  public static String shortClassName(Object o) {
    if (o == null)
      return null;
    Class c = o instanceof Class ? (Class) o : o.getClass();
    String name = c.getName();
    return shortenClassName(name);
  }

  public static boolean cicAtOddPosition(List<String> l, String s) {
    int n = l(l);
    for (int i = 1; i < n; i += 2) if (eqic(l.get(i), s))
      return true;
    return false;
  }

  public static void printStructs(Object... params) {
    print(renderStructs(params));
  }

  public static List<List<String>> ai_spreadCertainIndices(List<String> tokPat, List<String> tokS, List<Integer> indices) {
    int extra = l(tokS) - l(tokPat);
    if (extra < 0 || empty(indices))
      return emptyList();
    List<List<String>> results = new ArrayList();
    for (List<Integer> spread : allSpreads(extra, l(indices))) {
      List<String> tok = new ArrayList();
      int pos = 0, iSpread = 0, iIndices = 0;
      for (int i = 0; i < l(tokPat); i++) if (!eq(get(indices, iIndices), i))
        tok.add(tokS.get(pos++));
      else {
        ++iIndices;
        int take = spread.get(iSpread++);
        tok.add(join(subList(tokS, pos, pos + take + 1)));
        pos += take + 1;
      }
      results.add(tok);
    }
    return results;
  }

  public static <A> void listAdd(Collection<A> c, A a) {
    if (c != null)
      c.add(a);
  }

  public static int countChar(String s, char c) {
    int n = 0, l = l(s), i = 0;
    while (true) {
      int j = s.indexOf(c, i);
      if (j < 0)
        break;
      ++n;
      i = j + 1;
    }
    return n;
  }

  public static <A, B> Map<A, B> synchronizedMRUCache(int maxSize) {
    return synchroMap(new MRUCache(maxSize));
  }

  public static <A extends JLabel> A setHorizontalAlignment(final int pos, final A a) {
    swingCall(a, "setHorizontalAlignment", pos);
    return a;
  }

  public static <A extends AbstractButton> A setHorizontalAlignment(final int pos, final A a) {
    swingCall(a, "setHorizontalAlignment", pos);
    return a;
  }

  public static <A extends JTextField> A setHorizontalAlignment(final int pos, final A a) {
    swingCall(a, "setHorizontalAlignment", pos);
    return a;
  }

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

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

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

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

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

  public static String loadTextFilePossiblyGZipped(String fileName, String defaultContents) {
    File gz = new File(fileName + ".gz");
    return gz.exists() ? loadGZTextFile(gz) : loadTextFile(fileName, defaultContents);
  }

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

  public static String loadTextFilePossiblyGZipped(File fileName, String defaultContents) {
    return loadTextFilePossiblyGZipped(fileName.getPath(), defaultContents);
  }

  public static File getCachedTranspilationFile(String id) {
    return newFile(getCodeProgramDir(id), "Transpilation");
  }

  public static <A> A vmGeneralMap_get(Object key) {
    return vm_generalMap_get(key);
  }

  public static String loadProgramTextFile(String name) {
    return loadTextFile(getProgramFile(name));
  }

  public static String loadProgramTextFile(String progID, String name) {
    return loadTextFile(getProgramFile(progID, name));
  }

  public static String loadProgramTextFile(String progID, String name, String defaultText) {
    return loadTextFile(getProgramFile(progID, name), defaultText);
  }

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

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

  public static String loadPage_utf8(URL url) {
    return loadPage_utf8(url.toString());
  }

  public static String loadPage_utf8(String url) {
    loadPage_charset.set("UTF-8");
    try {
      return loadPage(url);
    } finally {
      loadPage_charset.set(null);
    }
  }

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

  public static void saveTranspiledCode(String progID, String code) {
    File dir = getCodeProgramDir(progID);
    new File(dir, "Transpilation").delete();
    saveGZTextFile(new File(dir, "Transpilation.gz"), code);
  }

  public static int findEndOfBlock(List<String> cnc, int i) {
    int j = i + 2, level = 1;
    while (j < cnc.size()) {
      if (cnc.get(j).equals("{"))
        ++level;
      else if (cnc.get(j).equals("}"))
        --level;
      if (level == 0)
        return j + 1;
      ++j;
    }
    return cnc.size();
  }

  public static <A> boolean eqGetOneOf(List<A> l, int i, A... options) {
    return eqOneOf(get(l, i), options);
  }

  public static int leftScanModifiers(List<String> tok, int i) {
    List<String> mod = getJavaModifiers();
    while (i > 1 && mod.contains(tok.get(i - 2))) i -= 2;
    return i;
  }

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

  public static <A> A assertEquals(String msg, Object x, A y) {
    if (assertVerbose())
      return assertEqualsVerbose(msg, x, y);
    if (!(x == null ? y == null : x.equals(y)))
      throw fail((msg != null ? msg + ": " : "") + y + " != " + x);
    return y;
  }

  public static File makeTempDir() {
    return (File) call(getJavaX(), "TempDirMaker_make");
  }

  public static File linux_fileInRamDisk(String name) {
    if (!isLinux())
      return null;
    File dir = newFile("/dev/shm");
    if (dir.isDirectory())
      return newFile(dir, name);
    return null;
  }

  public static boolean isMarkedAsSrcLib(String snippetID) {
    return snippetID != null && fileExists(javaxCodeDir("srclibs/" + psI(snippetID)));
  }

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

  public static Object hotwire_onCompile;

  public static boolean hotwire_serially;

  public static Lock hotwire_overInternalBot_lock = lock();

  public static boolean hotwire_compileOnServer;

  public static Class<?> hotwire_overInternalBot(String progID) {
    return hotwire_overInternalBot(progID, "main");
  }

  public static Class<?> hotwire_overInternalBot(String progID, String mainClass) {
    try {
      Pair<File, String> p = hotwire_compile(progID);
      File jar = p.a;
      assertTrue(jar.getAbsolutePath(), jar.isFile());
      List<File> files = hotwire_collectJars(jar);
      JavaXClassLoader classLoader = hotwire_makeClassLoader(files);
      classLoader.progID = progID;
      return hotwire_finish(classLoader, progID, p.b, mainClass);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static Pair<File, String> hotwire_compile(String progID) {
    Pair<File, String> p = hotwire_compileOnServer && !isLocalSnippetID(progID) ? compileSnippetThroughServer(progID) : CompilerBot.compileSnippet2(progID);
    Lock __2009 = hotwire_serially ? hotwire_overInternalBot_lock : null;
    lock(__2009);
    try {
      callF(hotwire_onCompile, p);
      return p;
    } finally {
      unlock(__2009);
    }
  }

  public static void markAsSrcLib(String snippetID) {
    saveTextFile(javaxCodeDir("srclibs/" + psI(snippetID)), "");
  }

  public static int latestInstalledJavaX() {
    File[] files = new File(userHome(), ".javax").listFiles();
    int v = 0;
    if (files != null)
      for (File f : files) {
        Matcher m = Pattern.compile("x(\\d\\d\\d?)\\.jar").matcher(f.getName());
        if (m.matches())
          v = Math.max(v, Integer.parseInt(m.group(1)));
      }
    return v;
  }

  public static List<File> filesWithExtension(String ext, List<File> files) {
    return filesEndingWith(files, addPrefixIfNotEmpty2(".", ext));
  }

  public static List<File> findAllFiles_noDirs(List dirs) {
    return findAllFiles_noDirs(asObjectArray(dirs));
  }

  public static List<File> findAllFiles_noDirs(Object... dirs) {
    List<File> l = new ArrayList();
    for (Object dir : dirs) {
      if (dir instanceof String && ((String) dir).endsWith("/.")) {
        for (File f : listFiles(dropSuffix("/.", (String) dir))) if (f.isFile())
          l.add(f);
      } else
        findAllFiles_noDirs_impl(toFile(dir), l);
    }
    return l;
  }

  public static void findAllFiles_noDirs_impl(File dir, List<File> l) {
    for (File f : listFiles(dir)) {
      if (f.isDirectory())
        findAllFiles_noDirs_impl(f, l);
      else
        l.add(f);
    }
  }

  public static File[] listFiles(File dir) {
    File[] files = dir.listFiles();
    return files == null ? new File[0] : files;
  }

  public static File[] listFiles(String dir) {
    return listFiles(new File(dir));
  }

  public static void sortFilesByName(List<File> l) {
    sort(l, new Comparator<File>() {

      public int compare(File a, File b) {
        return stdcompare(a.getName(), b.getName());
      }
    });
  }

  public static int deleteAllFilesInDirectory_minPathLength = 10;

  public static void deleteAllFilesInDirectory(File dir) {
    deleteAllFilesInDirectory(dir, false, false);
  }

  public static void deleteAllFilesInDirectory(File dir, boolean verbose, boolean testRun) {
    dir = getCanonicalFile(dir);
    assertTrue(f2s(dir), l(f2s(dir)) >= deleteAllFilesInDirectory_minPathLength);
    File[] files = dir.listFiles();
    if (files == null)
      return;
    for (File f : files) {
      if (!isSymLink(f) && f.isDirectory())
        deleteDirectory(f, verbose, testRun);
      else {
        if (verbose)
          print((testRun ? "Would delete " : "Deleting ") + f.getAbsolutePath());
        if (!testRun)
          f.delete();
      }
    }
  }

  public static <A> A callJavaX(String method, Object... args) {
    return (A) callOpt(getJavaX(), method, args);
  }

  public static List<String> parse3_plusBrackets(String s) {
    return dropPunctuation(javaTokPlusBrackets2(s));
  }

  public static ClassLoader getClassLoaderOrSame(Object o) {
    return o instanceof ClassLoader ? (ClassLoader) o : getClassLoader(o);
  }

  public static void printShortException(Throwable e) {
    print(exceptionToStringShort(e));
  }

  public static boolean java10OrHigher() {
    return parseFirstInt(javaVersion()) >= 10;
  }

  public static boolean addDefaultVMOption(String option) {
    String s = defaultVMArgs(), old = s;
    if (!s.contains(option))
      s = trim(s + " " + option);
    if (eq(old, s))
      return false;
    {
      setDefaultVMArgs(s);
      return true;
    }
  }

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

  public static ThreadLocal<String> ai_setLanguage_value = new ThreadLocal();

  public static void ai_setLanguage(String language) {
    ai_setLanguage_value.set(language);
  }

  public static void _onLoad_ai_setLanguage() {
    _threadInfo_addMakerAndRetriever(new VF1<Map>() {

      public void get(Map map) {
        try {
          mapPut(map, "ai_setLanguage_value", ai_setLanguage_value.get());
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "mapPut(map, 'ai_setLanguage_value, ai_setLanguage_value!)";
      }
    }, new VF1<Map>() {

      public void get(Map map) {
        try {
          ai_setLanguage((String) map.get("ai_setLanguage_value"));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "ai_setLanguage((S) map.get('ai_setLanguage_value))";
      }
    });
  }

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

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

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

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

  public static ThreadLocal<String> evalJava_prep_args = new ThreadLocal();

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

  public static String evalJava_prep(String code, String mainName, String preCode) {
    List<String> tok = javaTok(trim(code));
    if (!isFalse(evalJava_prep_voidMagic.get()) && tok_shouldAddReturn(tok) && eqGet(tok, 3, "(") && isIdentifier(get(tok, 1)) && isKnownVoidFunction(get(tok, 1)))
      tokAppend_reTok(tok, l(tok) - 2, ";");
    code = tok_addReturn(tok);
    String returnType = containsReturnWithArgument(code) ? "O" : "void";
    String main = "static " + returnType + " " + mainName + "(" + unnull(evalJava_prep_args.get()) + ") throws Exception { " + preCode + code + "\n" + "}";
    return main;
  }

  public static ThreadLocal<Boolean> evalJava_prep2_useCacheInThread = new ThreadLocal();

  public static volatile boolean evalJava_prep2_useCache;

  public static Map<String, Object> evalJava_prep2_cache = synchronizedMRUCache(100);

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

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

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

  public static List<String> tok_combineRoundOrCurlyBrackets_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) && eqOneOf(t, "{", "(")) {
        int j = findEndOfBracketPart(tok, i);
        l.add(joinSubList(tok, i, j));
        i = j - 1;
      } else
        l.add(t);
    }
    return l;
  }

  public static <A> Set<A> synchroWeakHashSet() {
    return Collections.newSetFromMap((Map) newWeakHashMap());
  }

  public static <A> void removeAllButFirst(List<A> l) {
    if (l(l) > 1)
      removeSubList(l, 1);
  }

  public static TimedCache<Map<String, Map<String, Set<String>>>> ai_wordToCategories_cache = new TimedCache("ciMap", 10.0);

  public static Map<String, Set<String>> ai_wordToCategories() {
    Map<String, Map<String, Set<String>>> languages = ai_wordToCategories_cache.get();
    Map<String, Set<String>> map = languages.get(ai_language());
    if (map == null)
      languages.put(ai_language(), map = ai_wordToCategories_make());
    return map;
  }

  public static Map<String, Set<String>> ai_wordToCategories_make() {
    Map<String, Set<String>> catMap = ai_wordCategoriesWithElements();
    final Map<String, Set<String>> map = ciMap();
    for (String cat : keys(catMap)) for (String word : catMap.get(cat)) {
      Set<String> set = map.get(word);
      if (set == null)
        map.put(word, set = new LinkedHashSet());
      set.add(cat);
    }
    return map;
  }

  public static Set<String> ai_wordToCategories(String word) {
    return ai_wordToCategories().get(word);
  }

  public static boolean isCurlyBraced(String s) {
    List<String> tok = tok_combineCurlyBrackets_keep(javaTok(s));
    return l(tok) == 3 && startsWithAndEndsWith(tok.get(1), "{", "}");
  }

  public static String uncurly(String s) {
    return tok_unCurlyBracket(s);
  }

  public static PTElement ai_parseToTreeWithGuessing(String input) {
    List<String> words = ai_uncategorizedWordsInSentence(input);
    AI_BottomUpParser1 parser = new AI_BottomUpParser1();
    parser.wordsToCategories = new DerivedMap(ai_wordToCategories());
    Map<String, Map<String, Double>> guessMap = new HashMap();
    AutoCloseable __2060 = tempSetThreadLocal(ai_getWordToCategoryWeight_map, guessMap);
    try {
      for (String word : words) {
        Map<String, Double> map = ai_guessCategoriesForUnknownWord_weighted(word);
        guessMap.put(word, map);
        parser.wordsToCategories.put(word, keys(map));
      }
      return ai_parseBottomUpToTree(parser, input);
    } finally {
      _close(__2060);
    }
  }

  public static <A, B, C> Map<B, C> subHashMap(Map<A, Map<B, C>> map, A key) {
    Map<B, C> subMap = map.get(key);
    if (subMap == null)
      map.put(key, subMap = new HashMap());
    return subMap;
  }

  public static boolean ai_isUncategorizedWord(String word) {
    return empty(ai_wordToCategories(word));
  }

  public static Map<String, Double> ai_guessCategoriesForUnknownWord_weighted(String word) {
    Map<String, Double> map = lithashmap("<noun>", 0.3, "<verb>", 0.3, "<adjective>", 0.2);
    if (ewic(word, "ing"))
      map.put("<ingform>", 0.6);
    if (ewic(word, "ly"))
      map.put("<adverb>", 0.6);
    if (eqic(word, "ed"))
      map.put("<past_participle>", 0.5);
    return map;
  }

  public static PTElement ai_parseBottomUpToTree(String input) {
    return ai_parseBottomUpToTree(new AI_BottomUpParser1(), input);
  }

  public static PTElement ai_parseBottomUpToTree(AI_BottomUpParser1 parser, String input) {
    parser.parse(input);
    return ai_parseBottomUpToTree(parser);
  }

  public static PTElement ai_parseBottomUpToTree(AI_BottomUpParser1 parser, List<String> tok) {
    parser.parse(tok);
    return ai_parseBottomUpToTree(parser);
  }

  public static PTElement ai_parseBottomUpToTree(AI_BottomUpParser1 parser) {
    AI_BottomUpParser1.Word w = parser.fullGroup();
    if (w == null)
      return null;
    List<String> classes = withoutQuoted(w.classes);
    if (empty(classes))
      return null;
    return ai_completeParseTree(parser, new ChooseCategory(w, classes));
  }

  public static List<String> nlTok(String s) {
    return javaTokPlusPeriod(s);
  }

  public static String shortenClassName(String name) {
    if (name == null)
      return null;
    int i = lastIndexOf(name, "$");
    if (i < 0)
      i = lastIndexOf(name, ".");
    return i < 0 ? name : substring(name, i + 1);
  }

  public static String renderStructs(Object... params) {
    List<String> l = new ArrayList();
    if (odd(l(params)))
      l.add(addSuffix(str(first(params)), ":"));
    for (int i = l(params) & 1; i + 1 < l(params); i += 2) l.add(params[i] + "=" + sfu(params[i + 1]));
    return joinWithSpace(l);
  }

  public static class allSpreads_Data {

    public int n;

    public List<Integer> collecting;
  }

  public static class allSpreads_StackEntry {

    public int remaining, take;

    public int position;

    public Object step(List<allSpreads_StackEntry> stack, allSpreads_Data d) {
      if (position == 0) {
        if (l(d.collecting) >= d.n - 1) {
          List<Integer> result = listPlus(d.collecting, remaining);
          popLast(stack);
          return result;
        }
        position++;
      }
      if (position == 1) {
        if (take <= remaining) {
          d.collecting.add(take);
          allSpreads_StackEntry e = new allSpreads_StackEntry();
          e.remaining = remaining - take;
          stack.add(e);
          position++;
        } else
          popLast(stack);
      } else if (position == 2) {
        removeLast(d.collecting);
        take++;
        position = 1;
      }
      return null;
    }
  }

  public static IterableIterator<List<Integer>> allSpreads(final int toSpread, final int buckets) {
    final allSpreads_Data d = new allSpreads_Data();
    d.n = buckets;
    d.collecting = new ArrayList();
    final List<allSpreads_StackEntry> stack = new ArrayList();
    allSpreads_StackEntry e = new allSpreads_StackEntry();
    e.remaining = toSpread;
    stack.add(e);
    return iff(new F0<Object>() {

      public Object get() {
        try {
          while (nempty(stack)) {
            ping();
            {
              Object __2089 = last(stack).step(stack, d);
              if (__2089 != null)
                return __2089;
            }
          }
          return endMarker();
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "while (nempty(stack)) {\r\n      ping();\r\n      try object last(stack).step(sta...";
      }
    });
  }

  public static <A> A swingCall(final Object o, final String method, final Object... args) {
    return swing(new F0<A>() {

      public A get() {
        try {
          return call(o, method, args);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "ret call(o, method, args);";
      }
    });
  }

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

  public static 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...";
      }
    });
  }

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

  public static String loadGZTextFile(File file) {
    try {
      if (!file.isFile())
        return null;
      ByteArrayOutputStream baos = new ByteArrayOutputStream();
      InputStream fis = new FileInputStream(file);
      GZIPInputStream gis = newGZIPInputStream(fis);
      try {
        byte[] buffer = new byte[1024];
        int len;
        while ((len = gis.read(buffer)) != -1) {
          baos.write(buffer, 0, len);
        }
      } finally {
        fis.close();
      }
      baos.close();
      return fromUtf8(baos.toByteArray());
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static File getCodeProgramDir() {
    return getCodeProgramDir(getProgramID());
  }

  public static File getCodeProgramDir(String snippetID) {
    return new File(javaxCodeDir(), formatSnippetID(snippetID));
  }

  public static File getCodeProgramDir(long snippetID) {
    return getCodeProgramDir(formatSnippetID(snippetID));
  }

  public static String standardCredentialsUser() {
    return trim(loadTextFile(new File(userHome(), ".tinybrain/username")));
  }

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

  public static void saveGZTextFile(File file, String contents) {
    try {
      File parentFile = file.getParentFile();
      if (parentFile != null)
        parentFile.mkdirs();
      String tempFileName = file.getPath() + "_temp";
      File tempFile = new File(tempFileName);
      if (contents != null) {
        if (tempFile.exists())
          try {
            String saveName = tempFileName + ".saved." + now();
            copyFile(tempFile, new File(saveName));
          } catch (Throwable e) {
            printStackTrace(e);
          }
        FileOutputStream fileOutputStream = newFileOutputStream(tempFile.getPath());
        GZIPOutputStream gos = new GZIPOutputStream(fileOutputStream);
        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(gos, "UTF-8");
        PrintWriter printWriter = new PrintWriter(outputStreamWriter);
        printWriter.print(contents);
        printWriter.close();
        gos.close();
        fileOutputStream.close();
      }
      if (file.exists() && !file.delete())
        throw new IOException("Can't delete " + file.getPath());
      if (contents != null)
        if (!tempFile.renameTo(file))
          throw new IOException("Can't rename " + tempFile + " to " + file);
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static List<String> getJavaModifiers_list = litlist("static", "abstract", "public", "private", "protected", "final", "native", "volatile", "synchronized", "transient");

  public static List<String> getJavaModifiers() {
    return getJavaModifiers_list;
  }

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

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

  public static boolean assertVerbose() {
    return isTrue(assertVerbose_value.get());
  }

  public static <A> A assertEqualsVerbose(Object x, A y) {
    assertEqualsVerbose((String) null, x, y);
    return y;
  }

  public static <A> A assertEqualsVerbose(String msg, Object x, A y) {
    if (!eq(x, y)) {
      throw fail((msg != null ? msg + ": " : "") + (y) + " != " + (x));
    } else
      print("OK: " + (x));
    return y;
  }

  public static Cache<Boolean> isLinux_cache = new Cache("isLinux_load");

  public static boolean isLinux() {
    return isLinux_cache.get();
  }

  public static Boolean isLinux_load() {
    return !isWindows() && !isMac() && !isAndroid();
  }

  public static File javaxCodeDir_dir;

  public static File javaxCodeDir() {
    return javaxCodeDir_dir != null ? javaxCodeDir_dir : new File(userHome(), "JavaX-Code");
  }

  public static File javaxCodeDir(String sub) {
    return newFile(javaxCodeDir(), sub);
  }

  public static List<File> hotwire_collectJars(File jar) {
    List<String> libIDs = hotwire_libraryIDsFromJar_deleteJarOnFail(jar);
    List<File> files = ll(jar);
    for (String libID : libIDs) files.add(loadLibraryOrSrcLib(libID));
    return files;
  }

  public static Class hotwire_finish(ClassLoader classLoader, String progID, String javaSource) {
    return hotwire_finish(classLoader, progID, javaSource, "main");
  }

  public static Class hotwire_finish(ClassLoader classLoader, String progID, String javaSource, String mainClass) {
    try {
      Class<?> theClass = classLoader.loadClass(mainClass);
      Class j = getJavaX();
      setOpt(theClass, "myJavaSource_code", javaSource);
      synchronized (j) {
        call(j, "setVars", theClass, progID);
        callOpt(j, "addInstance", progID, theClass);
      }
      hotwire_copyOver(theClass);
      return theClass;
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static Pair<File, String> compileSnippetThroughServer(String progID) {
    String transpiledSrc = getServerTranspiled2(progID);
    String md5 = md5(transpiledSrc + "\n" + progID);
    File jar = CompilerBot.getJarFile(md5);
    if (jar == null || jar.length() <= 22) {
      byte[] jarData = null;
      try {
        jarData = loadBinaryPage("http://www.botcompany.de/jar/" + psI(progID) + "?md5=" + md5(transpiledSrc));
      } catch (Throwable __e) {
        _handleException(__e);
      }
      if (!isJAR(jarData)) {
        print(bytesToHex(takeFirstOfByteArray(8, jarData)));
        print("fallback to CompilerBot: " + fromUtf8(takeFirstOfByteArray(80, jarData)));
        return CompilerBot.compileSnippet2(progID);
      }
      saveBinaryFile(jar, jarData);
    }
    return pair(jar, transpiledSrc);
  }

  public static List<File> filesEndingWith(File dir, String suffix) {
    return listFilesWithSuffix(dir, suffix);
  }

  public static List<File> filesEndingWith(List<File> l, String suffix) {
    List<File> out = new ArrayList();
    for (File f : unnull(l)) if (!f.isDirectory() && (empty(suffix) || endsWithIgnoreCase(f.getName(), suffix)))
      out.add(f);
    return out;
  }

  public static String addPrefixIfNotEmpty2(String prefix, String s) {
    return empty(s) ? "" : addPrefix(prefix, s);
  }

  public static File toFile(Object o) {
    if (o instanceof File)
      return (File) o;
    if (o instanceof String)
      return new File((String) o);
    throw fail("Not a file: " + o);
  }

  public static File getCanonicalFile(File f) {
    try {
      return f == null ? null : f.getCanonicalFile();
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static boolean isSymLink(File f) {
    return f != null && Files.isSymbolicLink(toPath(f));
  }

  public static ClassLoader getClassLoader(Object o) {
    return o == null ? null : _getClass(o).getClassLoader();
  }

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

  public static String javaVersion() {
    return System.getProperty("java.version");
  }

  public static String defaultVMArgs() {
    return javaxDefaultVMArgs();
  }

  public static void setDefaultVMArgs(String args) {
    String oldArgs = javaxDefaultVMArgs();
    args = trim(args);
    if (neq(unnull(oldArgs), unnull(args))) {
      print();
      print("Changing default VM arguments from");
      print("  " + oldArgs);
      print("to");
      print("  " + args);
      print();
      saveTextFile(javaxDataDir("default-vm-args"), nullIfEmpty(args));
    }
  }

  public static <A, B> void mapPut(Map<A, B> map, A key, B value) {
    if (map != null && key != null && value != null)
      map.put(key, value);
  }

  public static boolean tok_shouldAddReturn(List<String> tok) {
    String lastToken = get(tok, l(tok) - 2);
    return !eqOneOf(lastToken, "}", ";");
  }

  public static boolean tok_shouldAddReturn(String s) {
    return tok_shouldAddReturn(javaTok(s));
  }

  public static boolean isKnownVoidFunction(String name) {
    return standardFunctionAlwaysReturnsVoid(name);
  }

  public static void tokAppend_reTok(List<String> tok, int i, String s) {
    tok.set(i, tok.get(i) + s);
    reTok(tok, i, i + 1);
  }

  public static String tok_addReturn(List<String> tok) {
    if (tok_shouldAddReturn(tok)) {
      tokPrepend(tok, 1, "ret ");
      tokAppend(tok, l(tok) - 2, ";");
    }
    return join(tok);
  }

  public static String tok_addReturn(String s) {
    return tok_addReturn(javaTok(s));
  }

  public static boolean containsReturnWithArgument(List<String> tok) {
    for (int i = 1; i + 2 < l(tok); i += 2) if (eqOneOf(tok.get(i), "ret", "return") && neq(tok.get(i + 2), ";"))
      return true;
    return false;
  }

  public static boolean containsReturnWithArgument(String code) {
    return containsReturnWithArgument(javaTok(code));
  }

  public static Object makeDependent_postProcess;

  public static 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);
  }

  public static int findEndOfBracketPart(List<String> cnc, int i) {
    int j = i + 2, level = 1;
    while (j < cnc.size()) {
      if (eqOneOf(cnc.get(j), "{", "("))
        ++level;
      else if (eqOneOf(cnc.get(j), "}", ")"))
        --level;
      if (level == 0)
        return j + 1;
      ++j;
    }
    return cnc.size();
  }

  public static TimedCache<Map<String, Map<String, Set<String>>>> ai_wordCategoriesWithElements_cache = new TimedCache("ciMap", 10.0);

  public static Map<String, Set<String>> ai_wordCategoriesWithElements() {
    Map<String, Map<String, Set<String>>> languages = ai_wordCategoriesWithElements_cache.get();
    Map<String, Set<String>> map = languages.get(ai_language());
    if (map == null)
      languages.put(ai_language(), map = ai_wordCategoriesWithElements_make());
    return map;
  }

  public static Map<String, Set<String>> ai_wordCategoriesWithElements_make() {
    final Map<String, Set<String>> wordCategories = ciMap();
    for (String cat : mL("All " + ai_language() + " word categories")) putIfValueNempty(wordCategories, cat, combinedMechSetsCI(ai_mechListNamesForAngleBracketCategory(cat)));
    return wordCategories;
  }

  public static List<String> tok_combineCurlyBrackets_keep(List<String> tok) {
    List<String> l = new ArrayList();
    for (int i = 0; i < l(tok); i++) {
      String t = tok.get(i);
      if (odd(i) && eq(t, "{")) {
        int j = findEndOfCurlyBracketPart(tok, i);
        l.add(joinSubList(tok, i, j));
        i = j - 1;
      } else
        l.add(t);
    }
    return l;
  }

  public static boolean startsWithAndEndsWith(String s, String prefix, String suffix) {
    return startsWith(s, prefix) && endsWith(s, suffix);
  }

  public static String tok_unCurlyBracket(String s) {
    return isCurlyBraced(s) ? join(dropFirstThreeAndLastThree(javaTok(s))) : s;
  }

  public static List<String> ai_uncategorizedWordsInSentence(String s) {
    return filter(uniquify(words(s)), new F1<String, Boolean>() {

      public Boolean get(String word) {
        try {
          return empty(ai_wordToCategories(word));
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "empty(ai_wordToCategories(word))";
      }
    });
  }

  public static HashMap lithashmap(Object... x) {
    return litmap(x);
  }

  public static List<String> withoutQuoted(Iterable<String> l) {
    if (l == null)
      return null;
    List<String> l2 = new ArrayList();
    for (String s : l) if (!isQuoted(s))
      l2.add(s);
    return l2;
  }

  public static PTElement ai_completeParseTree(AI_BottomUpParser1 parser, PTElement root) {
    if (root == null)
      return null;
    List<WeightedProduction> productions = ai_buParser_parseWeightedProductions();
    ai_parseTree_makeWeights(parser, productions, root);
    ai_parseTree_makeTotalWeights(root, 1);
    return root;
  }

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

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

  public static String addSuffix(String s, String suffix) {
    return s == null || s.endsWith(suffix) ? s : s + suffix;
  }

  public static <A> List<A> listPlus(Collection<A> l, A... more) {
    return concatLists(l, asList(more));
  }

  public static void removeLast(List l) {
    if (!l.isEmpty())
      l.remove(l(l) - 1);
  }

  public static void removeLast(List l, int n) {
    removeSubList(l, l(l) - n, l(l));
  }

  public static <A> IterableIterator<A> iff(Object f) {
    return iteratorFromFunction_withEndMarker(f);
  }

  public static <A> IterableIterator<A> iff(F0 f) {
    return iteratorFromFunction_withEndMarker(f);
  }

  public static Object endMarker() {
    return iteratorFromFunction_endMarker;
  }

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

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

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

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

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

  public static <A extends JTextComponent> A jenableUndoRedo(final A textcomp) {
    {
      swing(new Runnable() {

        public void run() {
          try {
            final UndoManager undo = new UndoManager();
            vm_generalWeakSet("Undo Managers").add(undo);
            textcomp.getDocument().addUndoableEditListener(new UndoableEditListener() {

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

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

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

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

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

        public String toString() {
          return "final new UndoManager undo;\r\n    vm_generalWeakSet(\"Undo Managers\").add(undo)...";
        }
      });
    }
    return textcomp;
  }

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

  public static boolean isWindows() {
    return System.getProperty("os.name").contains("Windows");
  }

  public static boolean isMac() {
    return System.getProperty("os.name").toLowerCase().contains("mac");
  }

  public static List<String> hotwire_libraryIDsFromJar_deleteJarOnFail(File jar) {
    try {
      return hotwire_libraryIDsFromJar(jar);
    } catch (Throwable _e) {
      jar.delete();
      throw rethrow(_e);
    }
  }

  public static byte[] isJAR_magic = bytesFromHex("504B0304");

  public static boolean isJAR(byte[] data) {
    return byteArrayStartsWith(data, isJAR_magic);
  }

  public static boolean isJAR(File f) {
    return isJAR(loadBeginningOfBinaryFile(f, l(isJAR_magic)));
  }

  public static byte[] takeFirstOfByteArray(byte[] b, int n) {
    return subByteArray(b, 0, n);
  }

  public static byte[] takeFirstOfByteArray(int n, byte[] b) {
    return takeFirstOfByteArray(b, n);
  }

  public static List<File> listFilesWithSuffix(File dir, String suffix) {
    List<File> l = new ArrayList();
    for (File f : listFiles(dir)) if (!f.isDirectory() && (empty(suffix) || endsWithIgnoreCase(f.getName(), suffix)))
      l.add(f);
    return l;
  }

  public static String addPrefix(String prefix, String s) {
    return s.startsWith(prefix) ? s : prefix + s;
  }

  public static Path toPath(File f) {
    return f == null ? null : f.toPath();
  }

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

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

  public static String javaxDefaultVMArgs() {
    File fileNew, fileOld;
    String text = loadTextFile(fileNew = javaxDataDir("default-vm-args"));
    if (text == null) {
      text = loadTextFile(fileOld = programFile("#1005850", "default-vm-args"));
      if (text != null)
        moveFile(fileOld, fileNew);
    }
    return trim(unnull(text));
  }

  public static Object iteratorFromFunction_endMarker = new Object();

  public static <A> IterableIterator<A> iteratorFromFunction_withEndMarker(final Object f) {
    class IFF extends IterableIterator<A> {

      public A a;

      public boolean done;

      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 = (A) callF(f);
        if (a == iteratorFromFunction_endMarker)
          done = true;
      }
    }
    ;
    return new IFF();
  }

  public static <A> IterableIterator<A> iteratorFromFunction_withEndMarker(final F0 f) {
    return iteratorFromFunction_withEndMarker_f0(f);
  }

  public static boolean standardFunctionAlwaysReturnsVoid(String name) {
    return tok_staticFunctionAlwaysReturnsVoid(javaTok(textOfStandardFunction_cached(name)), name);
  }

  public static void tokPrepend(List<String> tok, int i, String s) {
    tok.set(i, s + tok.get(i));
  }

  public static void tokAppend(List<String> tok, int i, String s) {
    tok.set(i, tok.get(i) + s);
  }

  public static List<Class> dependentClasses() {
    return cleanUpAndGetWeakReferencesList(hotwire_classes);
  }

  public static <A, B> void putIfValueNempty(Map<A, B> map, A key, B value) {
    if (map != null && nempty(value))
      map.put(key, value);
  }

  public static Set<String> combinedMechSetsCI(Collection<String> listNames) {
    if (empty(listNames))
      return ciSet();
    if (l(listNames) == 1)
      return mechSetCI(first(listNames));
    Set<String> set = ciSet();
    for (String listName : listNames) set.addAll(mL(listName));
    return set;
  }

  public static TimedCache<Map<String, Set<String>>> ai_mechListNamesForAngleBracketCategory_cache = new TimedCache(5.0);

  public static Set<String> ai_mechListNamesForAngleBracketCategory(String s) {
    if (!isAngleBracketed(s))
      return null;
    Map<String, Set<String>> map = ai_mechListNamesForAngleBracketCategory_cache.get("newHashMap");
    s = dropTrailingNumberFromAngleBracketCategory(s);
    if (map.containsKey(s))
      return map.get(s);
    Set<String> set = litorderedset(mechLanguagePrefix() + firstToUpper(plural_mech(replace(deAngleBracket(s), "_", " "))));
    set.addAll(mechMultiMapCI(mechLanguagePrefix() + "Word category => List").get(s));
    map.put(s, set);
    return set;
  }

  public static int findEndOfCurlyBracketPart(List<String> cnc, int i) {
    int j = i + 2, level = 1;
    while (j < cnc.size()) {
      if (eq(cnc.get(j), "{"))
        ++level;
      else if (eq(cnc.get(j), "}"))
        --level;
      if (level == 0)
        return j + 1;
      ++j;
    }
    return cnc.size();
  }

  public static <A> List<A> dropFirstThreeAndLastThree(List<A> l) {
    return dropFirstAndLast(3, l);
  }

  public static <A> List<A> uniquify(Collection<A> l) {
    return uniquifyList(l);
  }

  public static List<String> words(String s) {
    return codeTokens(dropPunctuation(javaTok(s)));
  }

  public static List<WeightedProduction> ai_buParser_parseWeightedProductions() {
    return ai_buParser_parseWeightedProductions(mL_raw(ai_language() + " bottom-up groupings"));
  }

  public static List<WeightedProduction> ai_buParser_parseWeightedProductions(String text) {
    List<WeightedProduction> l = new ArrayList();
    for (String s : tlftj(text)) {
      s = trim(javaDropAllComments(s));
      List<String> meta = trimAll(tok_splitAtComma(trailingAngleBracketStuff(s)));
      s = dropTrailingAngleBracketStuff(s);
      List<String> tok = javaTokWithAngleBracketsC(s);
      WeightedProduction p = null;
      double weight = 1.0;
      String f = null;
      for (String met : meta) if (startsWithDigit(met))
        weight = parseDouble(met);
      else if (startsWith(met, "ai"))
        f = met;
      if (l(tok) == 5)
        p = new WeightedProduction(tok.get(0), tok.get(2), tok.get(4), weight);
      else if (l(tok) == 3)
        p = new WeightedProduction(tok.get(0), tok.get(2), weight);
      if (p != null) {
        p.plausibilityFunction = f;
        for (String met : meta) if (eqOneOf(met, "L", "R", "B")) {
          p.simplificationHint = met;
        }
        l.add(p);
      }
    }
    return l;
  }

  public static void ai_parseTree_makeWeights(AI_BottomUpParser1 parser, List<WeightedProduction> productions, final PTElement e) {
    ping();
    for (PTElement child : ai_parseTree_getChildren(parser, productions, e)) ai_parseTree_makeWeights(parser, productions, child);
    if (e instanceof HaveCategory && contains(ai_antiWordCategoriesWithElements().get(((HaveCategory) e).category), e.text())) {
      e.weight = 0.1;
      return;
    }
    if (e instanceof ChoosePart)
      e.weight = avg(first(e.children).weight, second(e.children).weight);
    else if (e instanceof HaveCategory && empty(e.children))
      e.weight = or(ai_getWordToCategoryWeight(e.text(), ((HaveCategory) e).category), 1.0);
    else
      e.weight = collectMaxDouble(e.children, "weight");
    ai_Reconstructed r = e instanceof ChoosePart ? ((ChoosePart) e).reconstruction : e instanceof HaveCategory ? ((HaveCategory) e).reconstruction : null;
    if (r != null)
      e.weight *= r.production.weight;
  }

  public static void ai_parseTree_makeTotalWeights(PTElement e, double weight) {
    ping();
    e.totalWeight = weight * e.weight;
    for (PTElement child : unnull(e.children)) ai_parseTree_makeTotalWeights(child, e.totalWeight);
    if (!(e instanceof ChoosePart))
      sortInPlaceByCalculatedFieldDesc(e.children, ai_parseTree_sortingFunction());
  }

  public static <A extends JComponent> A componentPopupMenuItem(A c, final String name, final Object action) {
    componentPopupMenu(c, new VF1<JPopupMenu>() {

      public void get(JPopupMenu menu) {
        try {
          addMenuItem(menu, name, action);
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "addMenuItem(menu, name, action);";
      }
    });
    return c;
  }

  public static void componentPopupMenuItem(JComponent c, final JMenuItem menuItem) {
    componentPopupMenu(c, new VF1<JPopupMenu>() {

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

      public String toString() {
        return "addMenuItem(menu, menuItem);";
      }
    });
  }

  public static 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;
  }

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

  public static List<String> hotwire_libraryIDsFromJar(File jar) {
    String dehlibs = unnull(loadTextFileFromZip(jar, "libraries"));
    return regexpExtractAll("\\d+", dehlibs);
  }

  public static byte[] bytesFromHex(String s) {
    return hexToBytes(s);
  }

  public static boolean byteArrayStartsWith(byte[] a, byte[] b) {
    if (a == null || b == null)
      return false;
    if (a.length < b.length)
      return false;
    for (int i = 0; i < b.length; i++) if (a[i] != b[i])
      return false;
    return true;
  }

  public static byte[] loadBeginningOfBinaryFile(File file, int maxBytes) {
    return loadBinaryFilePart(file, 0, maxBytes);
  }

  public static byte[] subByteArray(byte[] b, int start, int end) {
    start = max(start, 0);
    end = min(end, l(b));
    if (start == 0 && end == l(b))
      return b;
    if (start >= end)
      return new byte[0];
    byte[] x = new byte[end - start];
    System.arraycopy(b, start, x, 0, end - start);
    return x;
  }

  public static File programFile(String name) {
    return prepareProgramFile(name);
  }

  public static File programFile(String progID, String name) {
    return prepareProgramFile(progID, name);
  }

  public static void moveFile(File a, File b) {
    if (!renameFile(a, b))
      throw fail("File move failed: " + a + " to " + b);
  }

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

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

  public static <A, B> HashMap<A, B> newHashMap() {
    return new HashMap();
  }

  public static <A> IterableIterator<A> iteratorFromFunction_withEndMarker_f0(final F0<A> f) {
    class IFF2 extends IterableIterator<A> {

      public A a;

      public boolean have, done;

      public boolean hasNext() {
        getNext();
        return !done;
      }

      public A next() {
        getNext();
        if (done)
          throw fail();
        A _a = a;
        a = null;
        have = false;
        return _a;
      }

      public void getNext() {
        if (done || have)
          return;
        a = f.get();
        have = true;
        if (a == iteratorFromFunction_endMarker)
          done = true;
      }
    }
    ;
    return new IFF2();
  }

  public static boolean tok_staticFunctionAlwaysReturnsVoid(List<String> tok, String name) {
    Set<String> types = tok_returnTypesOfStaticFunction_uncleaned(tok, name);
    if (empty(types))
      return false;
    for (String type : types) if (!containsOneOf(javaTokC(type), "void", "svoid"))
      return false;
    return true;
  }

  public static String textOfStandardFunction_cached(String sfName) {
    return textOfStandardFunction(sfName);
  }

  public static <A> List<A> cleanUpAndGetWeakReferencesList(List<WeakReference<A>> l) {
    if (l == null)
      return null;
    synchronized (l) {
      List<A> out = new ArrayList();
      for (int i = 0; i < l(l); i++) {
        A a = l.get(i).get();
        if (a == null)
          l.remove(i--);
        else
          out.add(a);
      }
      return out;
    }
  }

  public static TreeSet<String> ciSet() {
    return caseInsensitiveSet();
  }

  public static TreeSet<String> mechSetCI(String name) {
    return mechCISet(name);
  }

  public static boolean isAngleBracketed(String s) {
    return s.startsWith("<") && s.endsWith(">");
  }

  public static String dropTrailingNumberFromAngleBracketCategory(String s) {
    if (!isAngleBracketed(s))
      return s;
    int i = l(s) - 1;
    while (i > 1 && isDigit(s.charAt(i - 1))) --i;
    if (i == l(s) - 1)
      return s;
    return substring(s, 0, i) + ">";
  }

  public static <A> LinkedHashSet<A> litorderedset(A... items) {
    LinkedHashSet<A> set = new LinkedHashSet();
    for (A a : items) set.add(a);
    return set;
  }

  public static String mechLanguagePrefix() {
    return ai_mechLanguagePrefix();
  }

  public static String plural_mech(String s) {
    {
      String _a_2283 = mechMapCI("Singular => Plural").get(s);
      if (!empty(_a_2283))
        return _a_2283;
    }
    return plural(s);
  }

  public static String deAngleBracket(String s) {
    return isAngleBracketed(s) ? dropFirstAndLast(s) : s;
  }

  public static Map<String, Pair<String, MultiMap<String, String>>> mechMultiMapCI_cache = synchroMap();

  public static MultiMap<String, String> mechMultiMapCI(String listName) {
    Pair<String, MultiMap<String, String>> p = mechMultiMapCI_cache.get(listName);
    String text = mechList_opt_raw(listName);
    if (p != null && eq(p.a, text))
      return p.b;
    MultiMap<String, String> map = parseDoubleArrowMultiMapCI(tlft(text));
    p = pair(text, map);
    mechMultiMapCI_cache.put(listName, p);
    return p.b;
  }

  public static <A> List<A> dropFirstAndLast(int n, List<A> l) {
    return new ArrayList(subList(l, n, l(l) - n));
  }

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

  public static String dropFirstAndLast(String s) {
    return substring(s, 1, l(s) - 1);
  }

  public static List<String> codeTokens(List<String> tok) {
    return codeTokensOnly(tok);
  }

  public static List<String> tlftj(String text) {
    return toLinesFullTrim_java(text);
  }

  public static String javaDropAllComments(String s) {
    List<String> tok = javaTok(s);
    for (int i = 0; i < l(tok); i += 2) tok.set(i, tok_javaDropCommentsFromWhitespace(tok.get(i)));
    return join(tok);
  }

  public static String trailingAngleBracketStuff(String s) {
    if (!endsWith(s, ']'))
      return null;
    return substring(s, smartLastIndexOf(s, '[') + 1, l(s) - 1);
  }

  public static String dropTrailingAngleBracketStuff(String s) {
    if (!endsWith(s, ']'))
      return s;
    return trimSubstring(s, 0, lastIndexOf(s, '['));
  }

  public static List<String> javaTokWithAngleBracketsC(String s) {
    return codeTokens(javaTokWithAngleBrackets(s));
  }

  public static boolean startsWithDigit(String s) {
    return nempty(s) && isDigit(s.charAt(0));
  }

  public static List<PTElement> ai_parseTree_getChildren(AI_BottomUpParser1 parser, List<WeightedProduction> productions, PTElement e) {
    if (e.children == null) {
      e.children = ai_parseTree_makeChildren(parser, productions, e);
      for (PTElement child : unnull(e.children)) child.parent = e;
    }
    return e.children;
  }

  public static List<PTElement> ai_parseTree_makeChildren(AI_BottomUpParser1 parser, List<WeightedProduction> productions, final PTElement e) {
    if (e instanceof ChooseCategory)
      return map(((ChooseCategory) e).categories, new F1<String, PTElement>() {

        public PTElement get(String cat) {
          try {
            return new HaveCategory(((ChooseCategory) e).word, cat);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "new HaveCategory(((ChooseCategory) e).word, cat)";
        }
      });
    if (e instanceof HaveCategory) {
      final HaveCategory h = (HaveCategory) (e);
      List<ai_Reconstructed> l = ai_buParser1_reconstructedProductions(parser, productions, h.word, h.category);
      return map(l, new F1<ai_Reconstructed, PTElement>() {

        public PTElement get(ai_Reconstructed r) {
          try {
            return r.production.b == null ? new HaveCategory(r.a, r.production.a, r) : new ChoosePart(h.word, r);
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

        public String toString() {
          return "r.production.b == null\r\n        ? new HaveCategory(r.a, r.production.a, r)\r\n ...";
        }
      });
    }
    if (e instanceof ChoosePart) {
      ai_Reconstructed r = ((ChoosePart) e).reconstruction;
      return (List) ll(new HaveCategory(r.a, r.production.a), new HaveCategory(r.b, r.production.b));
    }
    return null;
  }

  public static TimedCache<Map<String, Map<String, Set<String>>>> ai_antiWordCategoriesWithElements_cache = new TimedCache("ciMap", 10.0);

  public static Map<String, Set<String>> ai_antiWordCategoriesWithElements() {
    Map<String, Map<String, Set<String>>> languages = ai_antiWordCategoriesWithElements_cache.get();
    Map<String, Set<String>> map = languages.get(ai_language());
    if (map == null)
      languages.put(ai_language(), map = ai_antiWordCategoriesWithElements_make());
    return map;
  }

  public static Map<String, Set<String>> ai_antiWordCategoriesWithElements_make() {
    final Map<String, Set<String>> wordCategories = ciMap();
    for (String cat : mL("All " + ai_language() + " word categories")) putIfValueNempty(wordCategories, cat, combinedMechSetsCI(ai_antiMechListNamesForAngleBracketCategory(cat)));
    return wordCategories;
  }

  public static float avg(float a, float b) {
    return (a + b) / 2;
  }

  public static double avg(double a, double b) {
    return (a + b) / 2;
  }

  public static ThreadLocal<Map<String, Map<String, Double>>> ai_getWordToCategoryWeight_map = newThreadLocal();

  public static Double ai_getWordToCategoryWeight(String word, String category) {
    return mapGet(mapGet(ai_getWordToCategoryWeight_map.get(), word), category);
  }

  public static double collectMaxDouble(Collection c, String field) {
    double x = Double.NEGATIVE_INFINITY;
    for (Object o : unnull(c)) {
      Double d = (Double) (getOpt(o, field));
      if (d != null)
        x = max(x, d);
    }
    return x;
  }

  public static <A> List<A> sortInPlaceByCalculatedFieldDesc(List<A> l, F1<A, ?> f) {
    return sortInPlaceByCalculatedFieldDesc_f1(l, f);
  }

  public static F1<PTElement, Object> ai_parseTree_sortingFunction() {
    return new F1<PTElement, Object>() {

      public Object get(PTElement e) {
        try {
          return e.totalWeight;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "e.totalWeight";
      }
    };
  }

  public static void addMenuItem(JPopupMenu menu, String text, Object action) {
    menu.add(jmenuItem(text, action));
  }

  public static void addMenuItem(JPopupMenu menu, JMenuItem menuItem) {
    menu.add(menuItem);
  }

  public static void addMenuItem(JMenu menu, String text, Object action) {
    menu.add(jmenuItem(text, action));
  }

  public static void addMenuItem(Menu menu, String text, Object action) {
    menu.add(menuItem(text, action));
  }

  public static void addMenuItem(JMenu menu, JMenuItem menuItem) {
    menu.add(menuItem);
  }

  public static String loadTextFileFromZip(File inZip, String fileName) {
    return loadTextFileFromZipFile(inZip, fileName);
  }

  public static List<String> regexpExtractAll(String pat, String s) {
    if (s == null)
      return null;
    Matcher m = regexpMatcher(pat, s);
    List<String> out = new ArrayList();
    while (m.find()) out.add(m.group());
    return out;
  }

  public static byte[] loadBinaryFilePart(File file, long start, long end) {
    try {
      RandomAccessFile raf = new RandomAccessFile(file, "r");
      int n = toInt(min(raf.length(), end - start));
      byte[] buffer = new byte[n];
      try {
        raf.seek(start);
        raf.readFully(buffer, 0, n);
        return buffer;
      } finally {
        raf.close();
      }
    } catch (Exception __e) {
      throw rethrow(__e);
    }
  }

  public static File prepareProgramFile(String name) {
    return mkdirsForFile(getProgramFile(name));
  }

  public static File prepareProgramFile(String progID, String name) {
    return mkdirsForFile(getProgramFile(progID, name));
  }

  public static boolean renameFile(File a, File b) {
    mkdirsForFile(b);
    return a.renameTo(b);
  }

  public static boolean renameFile(File a, String newName) {
    return renameFile(a, fileInSameDir(a, newName));
  }

  public static Set<String> tok_returnTypesOfStaticFunction_uncleaned(List<String> tok, String functionName) {
    List<List<String>> funcs = findFullFunctionDefs(tok, true);
    TreeSet<String> out = new TreeSet();
    for (List<String> tokF : funcs) {
      int i = indexOfAny(tokF, 0, "(", "{");
      if (i < 0)
        continue;
      String fname = get(tokF, i - 2);
      if (!eq(fname, functionName))
        continue;
      out.add(joinSubList(tokF, 1, i - 3));
    }
    return out;
  }

  public static <A> boolean containsOneOf(Collection<A> l, A... x) {
    for (A a : unnull(l)) if (eqOneOf(a, x))
      return true;
    return false;
  }

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

  public static boolean containsOneOf(String s, String... x) {
    for (String o : x) if (contains(s, o))
      return true;
    return false;
  }

  public static String textOfStandardFunction(String sfName) {
    return loadSnippet_cached(stdFunctions_cached().get(sfName));
  }

  public static TreeSet<String> caseInsensitiveSet() {
    return new TreeSet(caseInsensitiveComparator());
  }

  public static TreeSet<String> caseInsensitiveSet(Collection<String> c) {
    return toCaseInsensitiveSet(c);
  }

  public static TreeSet<String> mechCISet(String name) {
    return asCISet(mechList(name));
  }

  public static boolean isDigit(char c) {
    return Character.isDigit(c);
  }

  public static String ai_mechLanguagePrefix() {
    String l = ai_language();
    return eqic(l, "English") ? "" : l + " | ";
  }

  public static String plural(String s) {
    return getPlural(s);
  }

  public static MultiMap<String, String> parseDoubleArrowMultiMapCI(List<String> l) {
    return parseDoubleArrowMultiMap((MultiMap) ciMultiMap(), l);
  }

  public static List<String> toLinesFullTrim_java(String text) {
    return toLinesFullTrim(joinLines(map("javaDropComments", toLinesFullTrim(text))));
  }

  public static 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);
  }

  public static int smartLastIndexOf(String s, char c) {
    if (s == null)
      return 0;
    int i = s.lastIndexOf(c);
    return i >= 0 ? i : l(s);
  }

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

  public static List<ai_Reconstructed> ai_buParser1_reconstructedProductions(AI_BottomUpParser1 parser, List<WeightedProduction> productions, AI_BottomUpParser1.Word group, String category) {
    List<ai_Reconstructed> l = new ArrayList();
    if (group == null)
      return l;
    for (WeightedProduction prod : productions) if (eq(category, prod.c)) {
      if (prod.b == null) {
        if (group.hasClass(prod.a))
          l.add(new ai_Reconstructed(prod, group));
        continue;
      }
      for (List<AI_BottomUpParser1.Word> parts : group.constituents) {
        if (l(parts) != 2)
          continue;
        AI_BottomUpParser1.Word partA = first(parts), partB = second(parts);
        if (!contains(partA.classes, prod.a))
          continue;
        if (!contains(partB.classes, prod.b))
          continue;
        l.add(new ai_Reconstructed(prod, partA, partB));
      }
    }
    return l;
  }

  public static TimedCache<Map<String, Set<String>>> ai_antiMechListNamesForAngleBracketCategory_cache = new TimedCache(5.0);

  public static Set<String> ai_antiMechListNamesForAngleBracketCategory(String s) {
    if (!isAngleBracketed(s))
      return null;
    Map<String, Set<String>> map = ai_antiMechListNamesForAngleBracketCategory_cache.get("newHashMap");
    s = dropTrailingNumberFromAngleBracketCategory(s);
    if (map.containsKey(s))
      return map.get(s);
    Set<String> set = litorderedset(mechLanguagePrefix() + "Not " + plural_mech(replace(deAngleBracket(s), "_", " ")));
    map.put(s, set);
    return set;
  }

  public static <A> ThreadLocal<A> newThreadLocal() {
    return new ThreadLocal();
  }

  public static <A> List<A> sortInPlaceByCalculatedFieldDesc_f1(List<A> l, final F1<A, ?> f) {
    sort(l, new Comparator<A>() {

      public int compare(A a, A b) {
        return stdcompare(f.get(b), f.get(a));
      }
    });
    return l;
  }

  public static boolean jmenuItem_newThreads;

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

  public static JMenuItem jmenuItem(final String text, final Object r) {
    return swing(new F0<JMenuItem>() {

      public JMenuItem get() {
        try {
          Pair<String, Integer> p = jmenu_autoMnemonic(text);
          JMenuItem mi = new JMenuItem(p.a);
          if (p.b != 0)
            mi.setMnemonic(p.b);
          mi.addActionListener(jmenuItem_newThreads ? actionListenerInNewThread(r) : actionListener(r));
          return mi;
        } catch (Exception __e) {
          throw rethrow(__e);
        }
      }

      public String toString() {
        return "Pair<S, Int> p = jmenu_autoMnemonic(text);\r\n    JMenuItem mi = new JMenuItem(...";
      }
    });
  }

  public static MenuItem menuItem(String text, final Object r) {
    MenuItem mi = new MenuItem(text);
    mi.addActionListener(actionListener(r));
    return mi;
  }

  public static File fileInSameDir(File f, String newName) {
    return newFile(parentFile(f), newName);
  }

  public static String javaDropComments(String s) {
    return javaDropAllComments(s);
  }

  public static Set<String> findFullFunctionDefs_keywords = new HashSet(splitAtSpace("static svoid ssvoid ssynchronized sbool sS sO sL"));

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

  public static List<List<String>> findFullFunctionDefs(String s, boolean topLevelOnly) {
    return findFullFunctionDefs(javaTok(s), topLevelOnly);
  }

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

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

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

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

  public static String loadSnippet_cached(String id) {
    return loadSnippet_simpleCache(id);
  }

  public static Map<String, String> stdFunctions_cached_map;

  public static Lock stdFunctions_cached_lock = lock();

  public static Map<String, String> stdFunctions_cached() {
    Lock __2373 = stdFunctions_cached_lock;
    lock(__2373);
    try {
      if (stdFunctions_cached_map == null) {
        stdFunctions_cached_map = parseStdFunctionsList(loadSnippetSilently("#1006654"));
        stdFunctions_cached_map.putAll(parseStdFunctionsList(loadSnippetSilently("#761")));
      }
      return stdFunctions_cached_map;
    } finally {
      unlock(__2373);
    }
  }

  public static synchronized void stdFunctions_clearCache() {
    stdFunctions_cached_map = null;
  }

  public static TreeSet<String> toCaseInsensitiveSet(Iterable<String> c) {
    if (isCISet(c))
      return (TreeSet) c;
    TreeSet<String> set = caseInsensitiveSet();
    addAll(set, c);
    return set;
  }

  public static TreeSet<String> toCaseInsensitiveSet(String... x) {
    TreeSet<String> set = caseInsensitiveSet();
    addAll(set, x);
    return set;
  }

  public static TreeSet<String> asCISet(Iterable<String> c) {
    return toCaseInsensitiveSet(c);
  }

  public static TreeSet<String> asCISet(String... x) {
    return toCaseInsensitiveSet(x);
  }

  public static List<String> mechList(String name) {
    return mechList_tlft(name);
  }

  public static List<String> getPlural_specials = ll("sheep", "fish");

  public static String getPlural(String s) {
    if (containsIgnoreCase(getPlural_specials, s))
      return s;
    if (ewic(s, "y"))
      return dropSuffixIgnoreCase("y", s) + "ies";
    if (ewic(s, "ss"))
      return s + "es";
    if (ewic(s, "s"))
      return s;
    return s + "s";
  }

  public static MultiMap<String, String> parseDoubleArrowMultiMap(MultiMap<String, String> map, List<String> l) {
    for (String s : l) {
      List<String> x = splitAtDoubleArrow_bothDirections(s);
      if (l(x) == 2)
        map.put(first(x), second(x));
    }
    return map;
  }

  public static <A> MultiMap<String, A> ciMultiMap() {
    return caseInsensitiveMultiMap();
  }

  public static String joinLines(List<String> lines) {
    return fromLines(lines);
  }

  public static String joinLines(String glue, String text) {
    return join(glue, toLines(text));
  }

  public static List<String> tok_combineAngleBrackets_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 = findEndOfAngleBracketPart(tok, i);
        l.add(joinSubList(tok, i, j));
        i = j - 1;
      } else
        l.add(t);
    }
    return l;
  }

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

  public static JMenuItem jMenuItem(String text, Object r) {
    return jmenuItem(text, r);
  }

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

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

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

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

            public void run() {
              try {
                AutoCloseable __2395 = holdInstance(instanceToHold);
                try {
                  callF(runnable);
                } finally {
                  _close(__2395);
                }
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "AutoCloseable __2395 = holdInstance(instanceToHold); try {\r\n      callF(runna...";
            }
          });
        } catch (Throwable __e) {
          messageBox(__e);
        }
      }
    };
  }

  public static File parentFile(File f) {
    return dirOfFile(f);
  }

  public static List<String> splitAtSpace(String s) {
    return empty(s) ? emptyList() : asList(s.split("\\s+"));
  }

  public static ExpiringMap2<String, String> loadSnippet_simpleCache_map = new ExpiringMap2(10000);

  public static Lock loadSnippet_simpleCache_lock = lock();

  public static int loadSnippet_simpleCache_timeout = 60000;

  public static String loadSnippet_simpleCache(String id) {
    if (id == null)
      return null;
    Lock __2405 = loadSnippet_simpleCache_lock;
    lock(__2405);
    try {
      id = fsI(id);
      String src = loadSnippet_simpleCache_map.get(id);
      if (src != null)
        return src;
      Integer oldTimeout = setThreadLocal(loadPage_forcedTimeout_byThread, loadSnippet_simpleCache_timeout);
      try {
        src = loadSnippet(id);
        if (src != null)
          loadSnippet_simpleCache_map.put(id, src);
        return src;
      } finally {
        loadPage_forcedTimeout_byThread.set(oldTimeout);
      }
    } finally {
      unlock(__2405);
    }
  }

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

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

  public static String loadSnippetSilently(String snippetID) {
    return loadSnippetQuietly(snippetID);
  }

  public static boolean isCISet(Iterable<String> l) {
    return l instanceof TreeSet && ((TreeSet) l).comparator() == caseInsensitiveComparator();
  }

  public static List<String> mechList_tlft(String name) {
    return tlft(mechList_raw(name));
  }

  public static String dropSuffixIgnoreCase(String suffix, String s) {
    return ewic(s, suffix) ? s.substring(0, l(s) - l(suffix)) : s;
  }

  public static <A> MultiMap<String, A> caseInsensitiveMultiMap() {
    MultiMap<String, A> mm = new MultiMap();
    mm.data = caseInsensitiveMap();
    return mm;
  }

  public static int findEndOfAngleBracketPart(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();
  }

  public static boolean isLetterOrDigit(char c) {
    return Character.isLetterOrDigit(c);
  }

  public static File dirOfFile(File f) {
    return f == null ? null : f.getParentFile();
  }

  public static class DerivedMap<A, B> extends AbstractMap<A, B> {

    public Map<A, B> base;

    public Map<A, B> additions = new HashMap();

    public DerivedMap() {
    }

    public DerivedMap(Map<A, B> base) {
      this.base = base;
    }

    public DerivedMap(Map<A, B> base, Map<A, B> additions) {
      this.additions = additions;
      this.base = base;
    }

    public B get(Object key) {
      B b = additions.get(key);
      if (b != null)
        return b;
      return base.get(key);
    }

    public B put(A key, B value) {
      return additions.put(key, value);
    }

    public Set<Map.Entry<A, B>> entrySet() {
      throw fail();
    }
  }

  public static class AI_BottomUpParser1 {

    public Map<String, Set<String>> wordsToCategories;

    public boolean splitSplittables = true;

    public String productionsText;

    public List<Word> words;

    public List<String> rawWords;

    public List<String> cnc;

    public LinkedHashSet<Updatable> allObjects = new LinkedHashSet();

    public long changes;

    public MultiMap<String, WeightedProduction> productionsByA = new MultiMap();

    public MultiMap<String, String> subClasses = new MultiMap();

    public boolean mergeGroupsInSamePosition = true;

    public HashMap<IntRange, Word> groupsByPosition = new HashMap();

    public boolean verbose_callPlausibilityFunction;

    public Map<Integer, List<String>> categoriesAtWordIndex;

    public class Updatable {

      public void update() {
      }

      public void setField(String field, Object value) {
        if (eq(get(this, field), value))
          return;
        set(this, field, value);
        change();
      }
    }

    public class Expectation {

      public String ifClass;

      public Runnable action;

      public Expectation() {
      }

      public Expectation(String ifClass, Runnable action) {
        this.action = action;
        this.ifClass = ifClass;
      }
    }

    public class Word extends Updatable {

      public String text;

      public int wordFrom, wordTo;

      public LinkedHashSet<Word> prev = new LinkedHashSet();

      public LinkedHashSet<Word> next = new LinkedHashSet();

      public LinkedHashSet<List<Word>> constituents = new LinkedHashSet();

      public List<Expectation> expectations = new ArrayList();

      public List<Expectation> fulfilledExpectations = new ArrayList();

      public TreeSet<String> classes = new TreeSet();

      public int classesConvertedToTraits;

      public LinkedHashSet<Word> groups = new LinkedHashSet();

      public List<Trait> traits = new ArrayList();

      public Word() {
      }

      public Word(String text, int wordFrom, int wordTo) {
        this.wordTo = wordTo;
        this.wordFrom = wordFrom;
        this.text = text;
        classes.add(quote(lower(text)));
      }

      public void update() {
        if (text != null)
          for (String c : unnull(wordsToCategories.get(text))) addClass(c);
        for (Expectation e : cloneList(expectations)) {
          if (classes.contains(e.ifClass)) {
            moveElementFromCollectionToCollection(e, expectations, fulfilledExpectations);
            change();
            callF(e.action);
          }
        }
        if (l(classes) > classesConvertedToTraits) {
          for (final String c : dropFirst(classesConvertedToTraits, classes)) addTraitsForClass(c);
          classesConvertedToTraits = l(classes);
        }
        for (Trait t : iterateListConcurrently(traits)) t.update();
      }

      public boolean isGroup() {
        return nempty(constituents);
      }

      public boolean addClass(String c) {
        if (!classes.addAll(makeHull_optimized(subClasses, c)))
          return false;
        change();
        return true;
      }

      public void addExpectation(Expectation e) {
        expectations.add(e);
        change();
      }

      public void addTraitsForClass(String c) {
        for (WeightedProduction p : productionsByA.get(c)) addTrait(new LinkWithTo(p.b, p.c, p.plausibilityFunction));
      }

      public void addTrait(Trait t) {
        set(t, "w", this);
        traits.add(t);
      }

      public String toString() {
        return textAndClasses(this);
      }

      public boolean hasClass(String c) {
        return contains(classes, c);
      }

      public String text() {
        return text;
      }
    }

    public Word makeGroup(Word a, Word b, String newClass) {
      List<Word> list = null;
      Word g = null;
      if (mergeGroupsInSamePosition)
        g = groupsByPosition.get(new IntRange(a.wordFrom, b.wordTo));
      else {
        list = ll(a, b);
        for (Word _g : a.groups) if (contains(_g.constituents, list)) {
          g = _g;
          break;
        }
      }
      if (list == null)
        list = ll(a, b);
      if (g != null) {
        g.constituents.add(list);
        if (g.addClass(newClass)) {
        }
        return g;
      }
      g = new Word(joinWithSpace(a.text, b.text), a.wordFrom, b.wordTo);
      allObjects.add(g);
      if (mergeGroupsInSamePosition)
        groupsByPosition.put(new IntRange(a.wordFrom, b.wordTo), g);
      g.addClass(newClass);
      g.constituents.add(list);
      for (Word w : list) w.groups.add(g);
      g.prev.addAll(a.prev);
      g.next.addAll(b.next);
      for (Word prev : a.prev) prev.next.add(g);
      for (Word next : b.next) next.prev.add(g);
      return g;
    }

    public class Trait extends Updatable {

      public Word w;
    }

    public class LinkWithTo extends Trait {

      public String linkWith, linkTo;

      public String plausibilityFunction;

      public int expectationsSentToNext;

      public LinkWithTo() {
      }

      public LinkWithTo(String linkWith, String linkTo, String plausibilityFunction) {
        this.plausibilityFunction = plausibilityFunction;
        this.linkTo = linkTo;
        this.linkWith = linkWith;
      }

      public void update() {
        if (l(w.next) > expectationsSentToNext) {
          for (final Word next : dropFirst(expectationsSentToNext, w.next)) next.addExpectation(new Expectation(linkWith, new Runnable() {

            public void run() {
              try {
                if (ai_parser_activateStandardFunctions_get() && plausibilityFunction != null) {
                  loadFunctions_preferDiskCache();
                  Object result = pcallAndMake(plausibilityFunction, w.text, next.text);
                  if (verbose_callPlausibilityFunction)
                    print("Called plausibility function " + plausibilityFunction + ": " + w.text + " + " + next.text + " => " + result);
                  if (isFalse(result))
                    return;
                }
                makeGroup(w, next, linkTo);
              } catch (Exception __e) {
                throw rethrow(__e);
              }
            }

            public String toString() {
              return "if (ai_parser_activateStandardFunctions_get() && plausibilityFunction != null...";
            }
          }));
          expectationsSentToNext = l(w.next);
        }
      }
    }

    public void parse(List<String> tok) {
      cnc = (tok);
      rawWords = codeTokens(cnc);
      _parse();
    }

    public AI_BottomUpParser1 parse(final String sentence) {
      rawWords = words_withAngleBrackets(sentence);
      _parse();
      return this;
    }

    public void _parse() {
      if (words != null)
        throw fail("only call once");
      if (splitSplittables)
        ai_splitSplittables(rawWords);
      if (wordsToCategories == null)
        wordsToCategories = ai_wordToCategories();
      parseProductions();
      words = new ArrayList();
      for (int i = 0; i < l(rawWords); i++) {
        Word w = new Word(rawWords.get(i), i, i + 1);
        words.add(w);
        if (isAngleBracketed(w.text))
          w.addClass(w.text);
        else if (isQuoted(w.text))
          w.addClass("<noun>");
        else if (isInteger(w.text))
          w.addClass("<number>");
        for (String cat : unnull(mapGet(categoriesAtWordIndex, i))) w.addClass(cat);
      }
      for (int i = 0; i < l(words) - 1; i++) linkWords(words.get(i), words.get(i + 1));
      addAll(allObjects, words);
      long lastChanges;
      do {
        lastChanges = changes;
        for (Updatable w : cloneList(allObjects)) w.update();
      } while (licensed() && lastChanges != changes);
    }

    public void printWordsAndGroups() {
      for (Word w : words) print("  " + textAndClasses(w));
      print();
      List<Word> groups = groups();
      print();
      print(n2(groups, "group"));
      for (Word g : groups) print("Group: " + groupedTextAndClasses(g));
    }

    public void printConstituentsOfFullGroup() {
      Word g = fullGroup();
      if (g == null)
        return;
      print();
      pnl(allGroupings(g));
    }

    public List<Word> words() {
      return instancesOf(Word.class, allObjects);
    }

    public List<Word> groups() {
      return filter(words(), new F1<Word, Boolean>() {

        public Boolean get(Word w) {
          try {
            return w.isGroup();
          } catch (Exception __e) {
            throw rethrow(__e);
          }
        }

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

    public List<Word> fullGroups() {
      return filterByFields(words(), "wordFrom", 0, "wordTo", l(words));
    }

    public Word fullGroup() {
      return findByFields(words(), "wordFrom", 0, "wordTo", l(words));
    }

    public Set<String> fullClasses() {
      TreeSet<String> set = new TreeSet();
      for (Word g : fullGroups()) set.addAll(g.classes);
      return set;
    }

    public String bracketStuff(Word w) {
      return " (" + joinWithComma(w.classes) + (empty(w.constituents) ? "" : ", " + n2(w.constituents, "grouping")) + ")";
    }

    public String textAndClasses(Word w) {
      return w.text + bracketStuff(w);
    }

    public String groupedTextAndClasses(Word w) {
      return grouped(w) + bracketStuff(w);
    }

    public String fullGrouped() {
      return grouped(fullGroup());
    }

    public void linkWords(Word a, Word b) {
      a.next.add(b);
      b.prev.add(a);
    }

    public void change() {
      ++changes;
    }

    public void parseProductions() {
      for (WeightedProduction p : productionsText == null ? ai_buParser_parseWeightedProductions() : ai_buParser_parseWeightedProductions(productionsText)) if (p.b != null)
        productionsByA.put(p.a, p);
      else
        subClasses.put(p.a, p.c);
    }

    public String grouped(Word g) {
      if (g == null)
        return null;
      if (empty(g.constituents))
        return g.text;
      return groupedConstituents(first(g.constituents));
    }

    public String groupedConstituents(List<Word> constituents) {
      List<String> l = new ArrayList();
      for (Word w : constituents) l.add(curlyBraceIfMultipleTokens(grouped(w)));
      return joinWithSpace(l);
    }

    public Set<String> allGroupings(Word g) {
      if (empty(g.constituents))
        return litorderedset(g.text);
      LinkedHashSet<String> set = new LinkedHashSet();
      for (List<Word> l : g.constituents) set.add(groupedConstituents(l));
      return set;
    }
  }

  public static class MultiMap<A, B> {

    public Map<A, List<B>> data = new HashMap<A, List<B>>();

    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);
      }
    }

    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);
      }
    }

    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 List<B> get(A key) {
      synchronized (data) {
        List<B> list = data.get(key);
        return list == null ? Collections.<B>emptyList() : list;
      }
    }

    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())
          data.remove(key);
      }
    }

    public Set<A> keySet() {
      synchronized (data) {
        return data.keySet();
      }
    }

    public Set<A> keys() {
      synchronized (data) {
        return data.keySet();
      }
    }

    public void remove(A key) {
      synchronized (data) {
        data.remove(key);
      }
    }

    public void remove(A key, B value) {
      synchronized (data) {
        List<B> list = data.get(key);
        if (list != null) {
          list.remove(value);
          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 putAll(MultiMap<A, B> map) {
      synchronized (data) {
        for (A key : map.keySet()) putAll(key, map.get(key));
      }
    }

    public int keysSize() {
      synchronized (data) {
        return l(data);
      }
    }

    public int size() {
      synchronized (data) {
        int n = 0;
        for (List l : data.values()) n += l(l);
        return n;
      }
    }

    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 List<B> allValues() {
      return concatLists(values(data));
    }

    public Object mutex() {
      return data;
    }
  }

  public static class CancelToCancelPoint extends QuickException {

    public CancelPoint cp;

    public CancelToCancelPoint(CancelPoint cp) {
      this.cp = cp;
    }
  }

  public static class WeightedProduction {

    public String a, b, c;

    public double weight;

    public String simplificationHint, plausibilityFunction;

    public WeightedProduction() {
    }

    public WeightedProduction(String a, String b, String c, double weight) {
      this.weight = weight;
      this.c = c;
      this.b = b;
      this.a = a;
    }

    public WeightedProduction(String a, String c, double weight) {
      this.weight = weight;
      this.c = c;
      this.a = a;
    }

    public String toString() {
      return a + (b == null ? "" : " + " + b) + " = " + c + appendSquareBracketStuff(simplificationHint);
    }
  }

  public static class PTElement {

    public AI_BottomUpParser1.Word word;

    public double weight = 1, totalWeight;

    public List<PTElement> children;

    public PTElement parent;

    public String plusWeight(String s) {
      if (weight == 1 && totalWeight == 1)
        return s;
      String a = formatDouble(weight, 2), b = formatDouble(totalWeight, 2);
      return s + " [" + a + (eq(a, b) ? "" : ", total " + b) + "]";
    }

    public String text() {
      return word == null ? null : word.text();
    }

    public String category() {
      return null;
    }
  }

  public static class ChooseCategory extends PTElement {

    public List<String> categories;

    public ChooseCategory(AI_BottomUpParser1.Word word, List<String> categories) {
      this.categories = categories;
      this.word = word;
    }

    public String toString() {
      return plusWeight(word.text() + " (" + n2(categories, "category", "categories") + ")");
    }
  }

  public static class HaveCategory extends PTElement {

    public String category;

    public ai_Reconstructed reconstruction;

    public HaveCategory(AI_BottomUpParser1.Word word, String category) {
      this.category = category;
      this.word = word;
    }

    public HaveCategory(AI_BottomUpParser1.Word word, String category, ai_Reconstructed reconstruction) {
      this.reconstruction = reconstruction;
      this.category = category;
      this.word = word;
    }

    public String toString() {
      return plusWeight(quote(word.text()) + " as " + category);
    }

    public String category() {
      return category;
    }
  }

  public static class ChoosePart extends PTElement {

    public ai_Reconstructed reconstruction;

    public ChoosePart(AI_BottomUpParser1.Word word, ai_Reconstructed reconstruction) {
      this.reconstruction = reconstruction;
      this.word = word;
    }

    public String toString() {
      String hint = reconstruction.production.simplificationHint;
      return plusWeight(reconstruction.a.text() + " + " + reconstruction.b.text() + " [" + reconstruction.production + "]");
    }

    public String category() {
      return reconstruction.production.c;
    }
  }

  public static class Either<A, B> {

    public byte which;

    public Object value;

    public Either() {
    }

    public Either(int which, Object value) {
      this.value = value;
      this.which = (byte) which;
    }

    public boolean isA() {
      return which == 1;
    }

    public boolean isB() {
      return which == 2;
    }

    public A a() {
      if (which != 1)
        _failMe();
      return (A) value;
    }

    public B b() {
      if (which != 2)
        _failMe();
      return (B) value;
    }

    public void _failMe() {
      throw fail("Either object is of wrong type: " + shortClassName(value));
    }
  }

  public static class TimedCache<A> {

    public long timeout;

    public A value;

    public Object function;

    public long set;

    public Lock lock = lock();

    public int stores, fails, hits;

    public TimedCache(double timeoutSeconds, Object function) {
      this(function, timeoutSeconds);
    }

    public TimedCache(Object function, double timeoutSeconds) {
      this(timeoutSeconds);
      this.function = function;
    }

    public TimedCache(double timeoutSeconds) {
      timeout = toMS(timeoutSeconds);
    }

    public A set(A a) {
      Lock __2440 = lock;
      lock(__2440);
      try {
        ++stores;
        value = a;
        set = now();
        return a;
      } finally {
        unlock(__2440);
      }
    }

    public boolean has() {
      Lock __2441 = lock;
      lock(__2441);
      try {
        clean();
        if (set != 0) {
          ++hits;
          return true;
        }
        ++fails;
        return false;
      } finally {
        unlock(__2441);
      }
    }

    public A get() {
      Lock __2442 = lock;
      lock(__2442);
      try {
        if (function != null)
          return get(function);
        clean();
        if (set != 0)
          ++hits;
        else
          ++fails;
        return value;
      } finally {
        unlock(__2442);
      }
    }

    public A get(Object makerFunction) {
      Lock __2443 = lock;
      lock(__2443);
      try {
        if (this.has())
          return getNoClean();
        A a = (A) (callF(makerFunction));
        return set(a);
      } finally {
        unlock(__2443);
      }
    }

    public A getNoClean() {
      Lock __2444 = lock;
      lock(__2444);
      try {
        return value;
      } finally {
        unlock(__2444);
      }
    }

    public void clean() {
      Lock __2445 = lock;
      lock(__2445);
      try {
        if (timeout > 0 && now() > set + timeout)
          clear();
      } finally {
        unlock(__2445);
      }
    }

    public void clear() {
      Lock __2446 = lock;
      lock(__2446);
      try {
        set = 0;
        value = null;
      } finally {
        unlock(__2446);
      }
    }

    public String stats() {
      return "Stores: " + stores + ", hits: " + hits + ", fails: " + fails;
    }
  }

  public static class ai_Reconstructed {

    public WeightedProduction production;

    public AI_BottomUpParser1.Word a, b;

    public ai_Reconstructed(WeightedProduction production, AI_BottomUpParser1.Word a, AI_BottomUpParser1.Word b) {
      this.b = b;
      this.a = a;
      this.production = production;
    }

    public ai_Reconstructed(WeightedProduction production, AI_BottomUpParser1.Word a) {
      this.a = a;
      this.production = production;
    }

    public String toString() {
      return sfu(production) + " - " + a.text() + (b == null ? "" : " + " + b.text());
    }
  }

  public static class QuickException extends RuntimeException {

    public Throwable fillInStackTrace() {
      return this;
    }

    public QuickException() {
    }

    public QuickException(Throwable e) {
      super(e);
    }

    public QuickException(String msg) {
      super(msg);
    }

    public QuickException(String msg, Throwable e) {
      super(msg, e);
    }
  }

  public static final class IntRange {

    public int start, end;

    public IntRange() {
    }

    public IntRange(int start, int end) {
      this.end = end;
      this.start = start;
    }

    public boolean equals(Object o) {
      return stdEq2(this, o);
    }

    public int hashCode() {
      return stdHash2(this);
    }

    public int length() {
      return end - start;
    }

    public static String _fieldOrder = "start end";

    public String toString() {
      return "[" + start + ";" + end + "]";
    }
  }

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

  public static char lower(char c) {
    return Character.toLowerCase(c);
  }

  public static <A> void moveElementFromCollectionToCollection(A a, Collection<A> src, Collection<A> target) {
    if (src != null)
      src.remove(a);
    if (target != null)
      target.add(a);
  }

  public static <A> IterableIterator<A> iterateListConcurrently(List<A> l) {
    return concurrentlyIterateList(l);
  }

  public static LinkedHashSet<String> makeHull_optimized(MultiMap<String, String> map, String e) {
    LinkedHashSet<String> l = new LinkedHashSet();
    makeHull_optimized_impl(map, e, l);
    return l;
  }

  public static void makeHull_optimized_impl(MultiMap<String, String> map, String e, LinkedHashSet<String> dest) {
    if (dest.contains(e))
      return;
    dest.add(e);
    for (String f : map.get(e)) makeHull_optimized_impl(map, f, dest);
  }

  public static boolean ai_parser_activateStandardFunctions_flag = true;

  public static void ai_parser_activateStandardFunctions() {
    ai_parser_activateStandardFunctions_flag = true;
    loadFunctions_preferDiskCache();
  }

  public static boolean ai_parser_activateStandardFunctions_get() {
    return ai_parser_activateStandardFunctions_flag;
  }

  public static void loadFunctions_preferDiskCache() {
    loadFunctions_preferDiskCache = true;
  }

  public static Object pcallAndMake(String functionName, Object... args) {
    try {
      return callAndMake(functionName, args);
    } catch (Throwable __e) {
      _handleException(__e);
    }
    return null;
  }

  public static List<String> words_withAngleBrackets(String s) {
    return codeTokens(dropPunctuation(javaTokWithAngleBrackets(s)));
  }

  public static List<String> ai_splitSplittables(List<String> tok) {
    MultiMap<String, String> splits = mechMultiMapCI(ai_language() + " splittables => split");
    for (int i = 0; i < l(tok); i++) {
      List<String> l = splits.get(tok.get(i));
      if (nempty(l))
        replaceSubList(tok, i, i + 1, words(first(l)));
    }
    return tok;
  }

  public static String ai_splitSplittables(String s) {
    return join(ai_splitSplittables_cnc(javaTok(s)));
  }

  public static <A extends Iterable> A pnl(A l) {
    printNumberedLines(l);
    return l;
  }

  public static void pnl(Map map) {
    printNumberedLines(map);
  }

  public static void pnl(Object[] a) {
    printNumberedLines(a);
  }

  public static void pnl(String s) {
    printNumberedLines(lines(s));
  }

  public static <A> List<A> instancesOf(Iterable i, Class<A> c) {
    return collectInstances(i, c);
  }

  public static <A> List<A> instancesOf(Class<A> c, Iterable i) {
    return collectInstances(c, i);
  }

  public static <A> List<A> filterByFields(Collection<A> c, Object... data) {
    List<A> l = new ArrayList();
    for (A x : c) if (checkFields(x, data))
      l.add(x);
    return l;
  }

  public static <A> A findByFields(Iterable<A> c, Object... data) {
    if (c != null)
      for (A x : c) if (checkFields(x, data))
        return x;
    return null;
  }

  public static String curlyBraceIfMultipleTokens(String s) {
    return curlyBraceIfMoreThanOneToken(s);
  }

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

  public static <A, B> Collection<B> values(MultiMap<A, B> mm) {
    return mm == null ? emptyList() : concatLists(values(mm.data));
  }

  public static String appendSquareBracketStuff(String b) {
    return appendSquareBracketed(b);
  }

  public static String appendSquareBracketStuff(String a, String b) {
    return appendSquareBracketed(a, b);
  }

  public static String formatDouble(double d, int digits) {
    String format = digits <= 0 ? "0" : "0." + rep(digits, '#');
    return new java.text.DecimalFormat(format, new java.text.DecimalFormatSymbols(Locale.ENGLISH)).format(d);
  }

  public static String b(Object contents, Object... params) {
    return tag("b", contents, params);
  }

  public static long toMS(double seconds) {
    return (long) (seconds * 1000);
  }

  public static boolean stdEq2(Object a, Object b) {
    if (a == null)
      return b == null;
    if (b == null)
      return false;
    if (a.getClass() != b.getClass())
      return false;
    for (String field : allFields(a)) if (neq(getOpt(a, field), getOpt(b, field)))
      return false;
    return true;
  }

  public static int stdHash2(Object a) {
    if (a == null)
      return 0;
    return stdHash(a, toStringArray(allFields(a)));
  }

  public static <A> IterableIterator<A> concurrentlyIterateList(final List<A> l) {
    return iteratorFromFunction_withEndMarker_f0(new F0<A>() {

      public int i;

      public A get() {
        int _i = i++;
        synchronized (l) {
          if (_i < l(l)) {
            A a = l.get(_i);
            if (a == iteratorFromFunction_endMarker)
              throw fail("no");
            return a;
          }
          return (A) iteratorFromFunction_endMarker;
        }
      }
    });
  }

  public static List<String> replaceSubList(List<String> l, List<String> x, List<String> y) {
    return replaceSublist(l, x, y);
  }

  public static <A> List<A> replaceSubList(List<A> l, int fromIndex, int toIndex, List<A> y) {
    return replaceSublist(l, fromIndex, toIndex, y);
  }

  public static List<String> ai_splitSplittables_cnc(List<String> tok) {
    MultiMap<String, String> splits = mechMultiMapCI(ai_language() + " splittables => split");
    for (int i = 1; i < l(tok); i += 2) {
      List<String> l = splits.get(tok.get(i));
      if (nempty(l))
        replaceSubList(tok, i, i + 1, ll(first(l)));
    }
    return tok;
  }

  public static <A> List<A> printNumberedLines(List<A> l) {
    printNumberedLines((Collection<A>) l);
    return l;
  }

  public static void printNumberedLines(Map map) {
    printNumberedLines(mapToLines(map));
  }

  public static <A extends Iterable> A printNumberedLines(A l) {
    int i = 0;
    if (l != null)
      for (Object a : l) print((++i) + ". " + str(a));
    return l;
  }

  public static void printNumberedLines(Object[] l) {
    printNumberedLines(asList(l));
  }

  public static void printNumberedLines(Object o) {
    printNumberedLines(lines(str(o)));
  }

  public static <A> List<A> collectInstances(Iterable i, Class<A> c) {
    List l = new ArrayList();
    if (i == null)
      return l;
    c = primitiveToBoxedTypeOpt(c);
    for (Object o : i) if (isInstance(c, o))
      l.add(o);
    return l;
  }

  public static <A> List<A> collectInstances(Class<A> c, Iterable i) {
    return collectInstances(i, c);
  }

  public static 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;
  }

  public static String curlyBraceIfMoreThanOneToken(String s) {
    return numberOfJavaTokens(s) > 1 ? curlyBrace(s) : s;
  }

  public static String appendSquareBracketed(String b) {
    return empty(b) ? "" : "" + " [" + b + "]";
  }

  public static String appendSquareBracketed(String a, String b) {
    return a + appendSquareBracketed(b);
  }

  public static String tag(String tag) {
    return htag(tag);
  }

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

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

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

  public static Set<String> allFields(Object o) {
    TreeSet<String> fields = new TreeSet();
    Class _c = _getClass(o);
    do {
      for (Field f : _c.getDeclaredFields()) fields.add(f.getName());
      _c = _c.getSuperclass();
    } while (_c != null);
    return fields;
  }

  public static int stdHash(Object a, String... fields) {
    if (a == null)
      return 0;
    int hash = getClassName(a).hashCode();
    for (String field : fields) hash = hash * 2 + hashCode(getOpt(a, field));
    return hash;
  }

  public static 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;
  }

  public static Class primitiveToBoxedTypeOpt(Class type) {
    return or(primitiveToBoxedType(type), type);
  }

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

  public static String curlyBrace(String s) {
    return "{" + s + "}";
  }

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

  public static String htag(String tag, Object contents, Object... params) {
    String openingTag = hopeningTag(tag, params);
    String s = str(contents);
    if (empty(s) && neqic(tag, "script"))
      return dropLast(openingTag) + "/>";
    return openingTag + s + "</" + tag + ">";
  }

  public static int hashCode(Object a) {
    return a == null ? 0 : a.hashCode();
  }

  public static Class primitiveToBoxedType(Class type) {
    if (type == boolean.class)
      return Boolean.class;
    if (type == int.class)
      return Integer.class;
    if (type == long.class)
      return Long.class;
    if (type == float.class)
      return Float.class;
    if (type == short.class)
      return Short.class;
    if (type == char.class)
      return Character.class;
    if (type == byte.class)
      return Byte.class;
    if (type == double.class)
      return Double.class;
    return null;
  }
}