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 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 java.awt.datatransfer.StringSelection;
public class main {
// A concept should be an object, not just a string.

static int concepts_internStringsLongerThan = 10;
static ThreadLocal<Boolean> concepts_unlisted = new ThreadLocal<Boolean>();

static interface Derefable {
  Concept get();
}

static class Concepts {
  Map<Long, Concept> concepts = synchroTreeMap();
  HashMap<Class, Object> perClassData = new HashMap<Class, Object>();
  String programID;
  long idCounter;
  volatile long changes = 1, changesWritten;
  volatile java.util.Timer autoSaver;
  volatile boolean savingConcepts;
  int autoSaveInterval = 1000;
  boolean useGZIP = true;
  
  Concepts() {}
  Concepts(String programID) {
  this.programID = programID;}
  
  synchronized long newID() {
    do {
      ++idCounter;
    } while (hasConcept(idCounter));
    return idCounter;
  }
  
  void initProgramID() {
    if (programID == null)
      programID = programID();
  }
  
  Concepts load() {
    initProgramID();
    clearConcepts();
    DynamicObject_loading = true;
    try {
      long time = now();
      readLocally2(this, programID, "concepts");
      assignConceptsToUs();
      done("Loading concepts", time);
      readLocally2(this, programID, "idCounter");
    } finally {
      DynamicObject_loading = false;
    }
    return this;
  }
  
  Concepts loadConcepts() { return load(); }
  
  void assignConceptsToUs() {
    for (Concept c : values(concepts)) {
      c._concepts = this;
      callOpt_noArgs(c, "_doneLoading2");
    }
  }

  String progID() {
    return programID == null ? programID() : programID;
  }
  
  Concept getConcept(String id) {
    return empty(id) ? null : getConcept(parseLong(id));
  }
  
  Concept getConcept(long id) {
    return (Concept) concepts.get((long) id);
  }
  
  Concept getConcept(RC ref) {
    return ref == null ? null : getConcept(ref.longID());
  }
  
  boolean hasConcept(long id) {
    return concepts.containsKey((long) id);
  }
  
  void deleteConcept(long id) {
    Concept c = getConcept(id);
    if (c == null)
      print("Concept " + id + " not found");
    else
      c.delete();
  }
  
  // call in only one thread
  void saveConceptsIfDirty() {
    initProgramID();
    savingConcepts = true;
    long start = now();
    try {
      String s;
      //synchronized(main.class) {
      long _changes = changes;
      if (_changes == changesWritten) return;
      saveLocally2(this, programID, "idCounter");
      s = structure(cloneMap(concepts));
      changesWritten = _changes; // only update when structure didn't fail (e.g. because of ConcurrentModificationException)
      //}
      s = javaTokWordWrap(s);
      long time = now()-start;
      print("Saving " + l(s) + " chars (" /*+ changesWritten + ", "*/ + time + " ms)");
      start = now();
      File f = getProgramFile(useGZIP ? "concepts.structure.gz" : "concepts.structure");
      if (useGZIP) { 
        saveGZTextFile(f, s);
        getProgramFile("concepts.structure").delete();
      } else {
        saveTextFile(f, s);
        getProgramFile("concepts.structure.gz").delete();
      }
copyFile(f, getProgramFile("concepts.structure" + (useGZIP ? ".gz" : "") + ".backup" + ymd() + "-" + formatInt(hours(), 2)));
      time = now()-start;
      print("Saved " + toK(f.length()) + " K (" + time + " ms)");
    } finally {
      savingConcepts = false;
    }
  }
  
  void saveConcepts() {
    saveConceptsIfDirty();
  }
  
  void clearConcepts() {
    concepts.clear();
    change();
  }
  
  synchronized void change() {
    ++changes;
  }
  
  // auto-save every second if dirty
  synchronized void autoSaveConcepts() {
    if (autoSaver == null) {
      autoSaver = doEvery(autoSaveInterval, new Runnable() { public void run() { try {  saveConcepts(); 
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "saveConcepts();"; }});
      print("Installed auto-saver (" + autoSaveInterval + " ms, " + progID() + ")");
    }
  }
  
  void cleanMeUp() {
    if (autoSaver != null) {
      autoSaver.cancel();
      autoSaver = null;
    }
    while (savingConcepts) sleep(10);
    saveConceptsIfDirty();
  }
  
  Map<Long, String> getIDsAndNames() {
    Map<Long, String> map = new HashMap<Long, String>();
    Map<Long, Concept> cloned = cloneMap(concepts);
    for (long id : keys(cloned)) 
      map.put(id, cloned.get(id).className);
    return map;
  }
  
  void deleteConcepts(List l) {
    for (Object o : l)
      if (o instanceof Long)
        concepts.remove((Long) o);
      else if (o instanceof Concept)
        ((Concept) o).delete();
      else
        warn("Can't delete " + getClassName(o));
  }
  
  <A extends Concept> A conceptOfType(Class<A> type) {
    return firstOfType(allConcepts(), type);
  }
  
  <A extends Concept> List<A> conceptsOfType(Class<A> type) {
    return filterByType(allConcepts(), type);
  }
  
  <A extends Concept> List<A> listConcepts(Class<A> type) {
    return conceptsOfType(type);
  }
  
  <A extends Concept> List<A> list(Class<A> type) {
    return conceptsOfType(type);
  }
  
  List<Concept> list(String type) {
    return conceptsOfType(type);
  }
  
  List<Concept> conceptsOfType(String type) {
    return filterByDynamicType(allConcepts(), "main$" + type);
  }
  
  boolean hasConceptOfType(Class<? extends Concept> type) {
    return hasType(allConcepts(), type);
  }
  
  void persistConcepts() {
    loadConcepts();
    autoSaveConcepts();
  }
  
  // We love synonyms
  void conceptPersistence() {
    persistConcepts();
  }
  
  void persist() { persistConcepts(); }
  void persist(int interval) { autoSaveInterval = interval; persist(); }
    
  // Runs r if there is no concept of that type
  <A extends Concept> A ensureHas(Class<A> c, Runnable r) {
    A a = conceptOfType(c);
    if (a == null) {
      r.run();
      a = conceptOfType(c);
      if (a == null)
        throw fail("Concept not made by " + r + ": " + shortClassName(c));
    }
    return a;
  }
  
  // Ensures that every concept of type c1 is ref'd by a concept of
  // type c2.
  // Type of func: voidfunc(concept)
  void ensureHas(Class<? extends Concept> c1, Class<? extends Concept> c2, Object func) {
    for (Concept a : conceptsOfType(c1)) {
      Concept b = findBackRef(a, c2);
      if (b == null) {
        callF(func, a);
        b = findBackRef(a, c2);
        if (b == null)
          throw fail("Concept not made by " + func + ": " + shortClassName(c2));
      }
    }
  }
  
  // Type of func: voidfunc(concept)
  void forEvery(Class<? extends Concept> type, Object func) {
    for (Concept c : conceptsOfType(type))
      callF(func, c);
  }
  
  int deleteAll(Class<? extends Concept> type) {
    List<Concept> l = (List) conceptsOfType(type);
    for (Concept c : l) c.delete();
    return l(l);
  }
  
  Collection<Concept> allConcepts() {
    synchronized(concepts) {
      return new ArrayList(values(concepts));
    }
  }
  
  <A extends Concept> int countConcepts(Class<A> c, Object... params) {
    int n = 0;
    for (A x : list(c))
      if (checkConceptFields(x, params))
        ++n;
    return n;
  }

  int countConcepts() {
    return l(concepts);
  }  
  
  // inter-process methods
  
  RC xnew(String name, Object... values) {
    return new RC(cnew(name, values));
  }
  
  void xset(long id, String field, Object value) {
    xset(new RC(id), field, value);
  }
  
  void xset(RC c, String field, Object value) {
    if (value instanceof RC)
      value = getConcept((RC) value);
    cset(getConcept(c), field, value);
  }
  
  Object xget(long id, String field) {
    return xget(new RC(id), field);
  }
  
  Object xget(RC c, String field) {
    return cget(getConcept(c), field);
  }
  
  void xdelete(long id) {
    xdelete(new RC(id));
  }
  
  void xdelete(RC c) {
    getConcept(c).delete();
  }
  
  List<RC> xlist() {
    return map("toPassRef", allConcepts());
  }
  
  List<RC> xlist(String className) {
    return map("toPassRef", conceptsOfType(className));
  }
}

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

static class Concept extends DynamicObject {
  transient Concepts _concepts; // Where we belong
  long id;
  Object madeBy;
  //double energy;
  //bool defunct;
  long created;
  
  // used only internally (cnew)
  Concept(String className) {
    super(className);
    _created();
  }
  
  Concept() {
    if (!DynamicObject_loading) {
      className = shortClassName(this);
      //print("New concept of type " + className);
      _created();
    }
  }
  
  List<Ref> refs = new ArrayList<Ref>();
  List<Ref> backRefs = new ArrayList<Ref>();

  void _created() {
    _concepts = mainConcepts;
    id = _concepts.newID();
    created = now();
    _concepts.concepts.put((long) id, this);
    _concepts.change();
  }
  
  void put(String field, Object value) {
    fieldValues.put(field, value);
    _concepts.change();
  }
  
  Object get(String field) {
    return fieldValues.get(field);
  }
  
  class Ref<A extends Concept> {
    A value;
    
    Ref() {
      if (!DynamicObject_loading) refs.add(this);
    }
    
    Ref(A value) {
  this.value = value;
      refs.add(this);
      index();
    }
    
    // get owning concept (source)
    Concept concept() {
      return Concept.this;
    }
    
    // get target
    A get() {
      return value;
    }
    
    void set(A a) {
      if (a == value) return;
      unindex();
      value = a;
      index();
    }
    
    void set(Ref<A> ref) {
      set(ref.get());
    }
    
    void index() { 
      if (value != null)
        value.backRefs.add(this);
      change();
    }
    
    void unindex() {
      if (value != null)
        value.backRefs.remove(this);
    }
    
    void change() {
      Concept.this.change();
    }
  }
  
  class RefL<A extends Concept> extends AbstractList<A> {
    List<Ref<A>> l = new ArrayList<Ref<A>>();
    
    public A set(int i, A o) {
      A prev = l.get(i).get();
      l.get(i).set(o);
      return prev;
    }
    
    public void add(int i, A o) {
      l.add(i, new Ref(o));
    }
    
    public A get(int i) {
      return l.get(i).get();
    }
    
    public A remove(int i) {
      return l.remove(i).get();
    }
    
    public int size() {
      return l.size();
    }
  }
  
  void delete() {
    //name = "[defunct " + name + "]";
    //defunct = true;
    //energy = 0;
    for (Ref r : refs)
      r.unindex();
    refs.clear();
    for (Ref r : cloneList(backRefs))
      r.set((Concept) null);
    backRefs.clear(); // Should be clear at this point anyway
    
    if (_concepts != null) {
      _concepts.concepts.remove((long) id);
      change();
      _concepts = null;
    }
    id = 0;
  }
  
  BaseXRef export() {
    return new BaseXRef(_concepts.progID(), id);
  }
  
  // notice system of a change in this object
  void change() {
    if (_concepts != null) _concepts.change();
  }
  
  String _programID() {
    return _concepts == null ? programID() : _concepts.progID();
  }
} // class Concept

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

static class Event extends Concept {}

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

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

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

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

// define standard concept functions to use main concepts

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

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

static Concept cnew(String name, Object... values) {
  Class<? extends Concept> cc = findClass(name);
  Concept c = cc != null ? nuObject(cc) : new Concept(name);
  csetAll(c, values);
  return c;
}

static <A extends Concept> A cnew(Class<A> cc, Object... values) {
  A c = nuObject(cc);
  csetAll(c, values);
  return c;
}

static Object cget(Concept c, String field) {
  Object o = getOpt(c, field);
  if (o instanceof Concept.Ref) return ((Concept.Ref) o).get();
  return o;
}

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

static void cset(Concept c, Object... values) { try {
 
  values = expandParams(c.getClass(), values);
  warnIfOddCount(values);
  for (int i = 0; i+1 < l(values); i += 2) {
    String field = (String) values[i];
    Object value = values[i+1];
    Field f = setOpt_findField(c.getClass(), field);
    //print("cset: " + c.id + " " + field + " " + struct(value) + " " + f);
    if (value instanceof RC) value = c._concepts.getConcept((RC) value);
    value = deref(value);
    
    if (value instanceof String && l((String) value) >= concepts_internStringsLongerThan) value = ((String) value).intern();
    
    if (f == null)
      c.fieldValues.put(field, value instanceof Concept ? c.new Ref((Concept) value) : value);
    else if (isSubtypeOf(f.getType(), Concept.Ref.class))
      ((Concept.Ref) f.get(c)).set((Concept) derefRef(value));
    else
      f.set(c, value);
  }
  c.change();

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

static <A extends Concept> int countConcepts(Class<A> c, Object... params) {
  return mainConcepts.countConcepts(c, params);
}

static int countConcepts() {
  return mainConcepts.countConcepts();
}

static <A extends Concept> A findBackRef(Concept c, Class<A> type) {
  for (Concept.Ref r : c.backRefs)
    if (instanceOf(r.concept(), type))
      return (A) r.concept();
  return null;
}

static <A extends Concept> List<A> findBackRefs(Collection<? extends Concept> concepts, Class<A> type) {
  IdentityHashMap<A, Boolean> l = new IdentityHashMap<A, Boolean>();
  for (Concept c : concepts)
    for (Concept.Ref r : c.backRefs)
      if (instanceOf(r.concept(), type))
        l.put((A) r.concept(), true);
  return asList(keys(l));
}

// TODO: sort by ID?
static <A extends Concept> List<A> findBackRefs(Concept c, Class<A> type) {
  IdentityHashMap<A, Boolean> l = new IdentityHashMap<A, Boolean>();
  for (Concept.Ref r : c.backRefs)
    if (instanceOf(r.concept(), type))
      l.put((A) r.concept(), true);
  return asList(keys(l));
}
  
static <A extends Concept> List<A> findBackRefs(Class<A> type, Concept c) {
  return findBackRefs(c, type);
}

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

static Concept getConcept(long id) {
  return mainConcepts.getConcept(id);
}

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

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

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

static Collection<Concept> allConcepts() {
  return mainConcepts.allConcepts();
}

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

// make concept instance that is not connected to DB
static <A extends Concept> A unlisted(Class<A> c, Object... args) {
  concepts_unlisted.set(true);
  try {
    return nuObject(c, args);
  } finally {
    concepts_unlisted.set(null);
  }
}

static void deleteConcepts(List l) {
  mainConcepts.deleteConcepts(l);
}

static int deleteAll(Class<? extends Concept> type) {
  return mainConcepts.deleteAll(type);
}

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

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

static class Result extends Concept {
  static String _fieldOrder = "inputImage horizontalSplitThreshold characters text";
  BWImage inputImage;
  float horizontalSplitThreshold;
  List<BWImage> characters;
  String text;
}

static MultiMap<String, String> md5ToChar = new MultiMap<String, String>();

public static void main(String[] args) throws Exception { swingLater(new Runnable() { public void run() { try { 
  List<List> data = getData();
  JTable table = showTableWithImages("Taught Characters", splitAtSpace("Image MD5 Character"), data);
  table.setRowHeight(25);

} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "List<List> data = getData();\n  JTable table = showTableWithImages(\"Taught Characters\", splitAtSpace(\"Image MD5 Character\"), data);\n  table.setRowHeight(25);"; }});}

static List<List> getData() {
  Concepts in = new Concepts("#1005726").load();
  
  List<List> data = new ArrayList<List>();
  for (Result r : in.list(Result.class)) {
    String text = contains(r.text, "[") ? "" : r.text;
    for (int i = 0; i < l(r.characters); i++) {
      BWImage clip = autoCroppedBWImage(r.characters.get(i));
      String md5 = md5OfBWImage(clip);
      String c = substring(text, i, i+1);
      String s = or2(c, "?");
      if (nempty(c))
        md5ToChar.setPut(md5, c);
      data.add(ll(clip.getBufferedImage(), md5, s));
    }
  }
  sortByIndex(data, 2);
  return data;
}

static <A> List<A> ll(A... a) {
  return litlist(a);
}
static String formatInt(int i, int digits) {
  return padLeft(str(i), '0', digits);
}

static List<String> splitAtSpace(String s) {
  return asList(s.split("\\s+"));
}
static Object callF(Object f, Object... args) {
  return callFunction(f, args);
}
static BWImage autoCroppedBWImage(BWImage img) {
  return img.clip(autoCropOfBWImage(img));
}

static BWImage autoCroppedBWImage(BufferedImage img) {
  return autoCroppedBWImage(new BWImage(img));
}

// firstDelay = delay
static java.util.Timer doEvery(int delay, Runnable r) {
  java.util.Timer timer = new java.util.Timer();
  timer.scheduleAtFixedRate(timerTask(r), delay, delay);
  return timer;
}

static <A> ArrayList<A> asList(A[] a) {
  return new ArrayList<A>(Arrays.asList(a));
}

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

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

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

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

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

static boolean empty(Object o) {
  if (o instanceof Collection) return empty((Collection) o);
  if (o instanceof String) return empty((String) o);
  if (o instanceof Map) return empty((Map) o);
  if (o instanceof Object[]) return empty((Object[]) o);
  throw fail("unknown type for 'empty': " + getType(o));
}
static boolean instanceOf(Object o, String className) {
  if (o == null) return false;
  String c = o.getClass().getName();
  return eq(c, className) || eq(c, "main$" + className);
}

static boolean instanceOf(Object o, Class c) {
  if (c == null) return false;
  return c.isInstance(o);
}
static WeakHashMap<Class, HashMap<String, Method>> callOpt_noArgs_cache = new WeakHashMap();

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

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

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

// used internally - we are in synchronized block
static HashMap<String, Method> callOpt_noArgs_makeCache(Class c) {
  HashMap<String, Method> map = new HashMap<String, Method>();
  Class _c = c;
  do {
    for (Method m : c.getDeclaredMethods())
      if (m.getParameterTypes().length == 0) {
        m.setAccessible(true);
        String name = m.getName();
        if (!map.containsKey(name))
          map.put(name, m);
      }
    _c = _c.getSuperclass();
  } while (_c != null);
  callOpt_noArgs_cache.put(c, map);
  return map;
}
static void sortByIndex(List<List> l, final int index) {
  sort(l, new Comparator<List>() {
    public int compare(List a, List b) {
      return cmp(a.get(index), b.get(index));
    }
  });
}
static <A> List<A> filterByDynamicType(Collection<A> c, String type) {
  List<A> l = new ArrayList<A>();
  for (A x : c)
    if (eq(dynamicClassName(x), type))
      l.add(x);
  return l;
}
static <A> List<A> filterByType(Collection c, Class<A> type) {
  List<A> l = new ArrayList<A>();
  for (Object x : c)
    if (isInstanceX(type, x))
      l.add((A) x);
  return l;
}
static <A> List<A> cloneList(Collection<A> l) {
  //O mutex = getOpt(l, "mutex");
  /*if (mutex != null)
    synchronized(mutex) {
      ret new ArrayList<A>(l);
    }
  else
    ret new ArrayList<A>(l);*/
  // assume mutex is equal to collection, which will be true unless you explicitly pass a mutex to synchronizedList() which no one ever does.
  synchronized(l) {
    return new ArrayList<A>(l);
  }
}
static HashMap<String, Class> findClass_cache = new HashMap<String, Class>();

// currently finds only inner classes of class "main"
// returns null on not found
// this is the simple version that is not case-tolerant
static Class findClass(String name) {
  synchronized(findClass_cache) {
    if (findClass_cache.containsKey(name))
      return findClass_cache.get(name);
      
    if (!isJavaIdentifier(name)) return null;
    
    Class c;
    try {
      c = Class.forName("main$" + name);
    } catch (ClassNotFoundException e) {
      c = null;
    }
    findClass_cache.put(name, c);
    return c;
  }
}
static boolean eq(Object a, Object b) {
  if (a == null) return b == null;
  if (a.equals(b)) return true;
  if (a instanceof BigInteger) {
    if (b instanceof Integer) return a.equals(BigInteger.valueOf((Integer) b));
    if (b instanceof Long) return a.equals(BigInteger.valueOf((Long) b));
  }
  return false;
}
static int done_minPrint = 10;

static long done(long startTime, String desc) {
  long time = now()-startTime;
  if (time >= done_minPrint)
    print(desc + " [" + time + " ms]");
  return time;
}

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

static long done(long startTime) {
  return done(startTime, "");
}
static Field setOpt_findField(Class c, String field) {
  HashMap<String, Field> map;
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  return map.get(field);
}

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

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

static void setOpt(Class c, String field, Object value) {
  if (c == null) return;
  try {
    Field f = setOpt_findStaticField(c, field);
    if (f != null)
      smartSet(f, null, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}
  
static Field setOpt_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static String or2(String a, String b) {
  return nempty(a) ? a : b;
}
static String str(Object o) {
  return String.valueOf(o);
}
static boolean isSubtypeOf(Class a, Class b) {
  return b.isAssignableFrom(a); // << always hated that method, let's replace it!
}
static long toK(long l) {
  return (l+1023)/1024;
}
static boolean warn_on = true;

static void warn(String s) {
  if (warn_on)
    print("Warning: " + s);
}

static void warn(String s, List<String> warnings) {
  warn(s);
  if (warnings != null)
    warnings.add(s);
}
  static RuntimeException fail() {
    throw new RuntimeException("fail");
  }
  
  static RuntimeException fail(Object msg) {
    throw new RuntimeException(String.valueOf(msg));
  }
  
  static RuntimeException fail(String msg) {
    throw new RuntimeException(unnull(msg));
  }
   
  static RuntimeException fail(String msg, Throwable innerException) {
    throw new RuntimeException(msg, innerException);
  }
  
  // disabled for now to shorten some programs 
  /*static RuntimeException fail(S msg, O... args) {
    throw new RuntimeException(format(msg, args));
  }*/
static boolean contains(Collection c, Object o) {
  return c != null && c.contains(o);
}

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

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

static boolean contains(String s, String b) {
  return s != null && s.indexOf(b) >= 0;
}
  /** writes safely (to temp file, then rename) */
  public static void saveTextFile(String fileName, String contents) throws IOException {
    File file = new File(fileName);
    File parentFile = file.getParentFile();
    if (parentFile != null)
      parentFile.mkdirs();
    String tempFileName = fileName + "_temp";
    File tempFile = new File(tempFileName);
    if (contents != null) {
      if (tempFile.exists()) try {
        String saveName = tempFileName + ".saved." + now();
        copyFile(tempFile, new File(saveName));
      } catch (Throwable e) { printStackTrace(e); }
      FileOutputStream fileOutputStream = newFileOutputStream(tempFile.getPath());
      OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, "UTF-8");
      PrintWriter printWriter = new PrintWriter(outputStreamWriter);
      printWriter.print(contents);
      printWriter.close();
    }
    
    if (file.exists() && !file.delete())
      throw new IOException("Can't delete " + fileName);

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

static Object nuObject(String className, Object... args) { try {
 
  return nuObject(Class.forName(className), args);

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

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

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

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

static Constructor nuObject_findConstructor(Class c, Object... args) {
  for (Constructor m : c.getDeclaredConstructors()) {
    if (!nuObject_checkArgs(m.getParameterTypes(), args, false))
      continue;
    return m;
  }
  throw new RuntimeException("Constructor with " + args.length + " matching parameter(s) not found in " + c.getName());
}

 static boolean nuObject_checkArgs(Class[] types, Object[] args, boolean debug) {
    if (types.length != args.length) {
      if (debug)
        System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
      return false;
    }
    for (int i = 0; i < types.length; i++)
      if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
        if (debug)
          System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
        return false;
      }
    return true;
  }
static void readLocally(String progID, String varNames) {
  readLocally2(mc(), progID, varNames);
}

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

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

// read a string variable from standard storage
// does not overwrite variable contents if there is no file
static synchronized void readLocally2(Object obj, String progID, String varNames) {
  for (String variableName : codeTokensOnly(javaTok(varNames))) {
    File textFile = new File(programDir(progID), variableName + ".text");
    
    String value = loadTextFile(textFile);
    if (value != null)
      set(main.class, variableName, value);
    else {
      File structureFile = new File(programDir(progID), variableName + ".structure");
      value = loadTextFile(structureFile);
      if (value == null) {
        File structureGZFile = new File(programDir(progID), variableName + ".structure.gz");
        value = loadGZTextFile(structureGZFile);
      }
      if (value != null)
        readLocally_set(obj, variableName, unstructure(value));
    }
  }
}

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

static String getClassName(Object o) {
  return o == null ? "null" : o.getClass().getName();
}
static boolean hasConcept(Class<? extends Concept> c, Object... params) {
  return findConceptWhere(c, params) != null;
}
static String javaTokWordWrap(String s) {
  int cols = 120, col = 0;
  List<String> tok = javaTok(s);
  for (int i = 0; i < l(tok); i++) {
    String t = tok.get(i);
    if (odd(i) && col >= cols && !containsNewLine(t))
      tok.set(i, t += "\n");
    int idx = t.lastIndexOf('\n');
    if (idx >= 0) col = l(t)-(idx+1);
    else col += l(t);
  }
  return join(tok);
}
public static void copyFile(File src, File dest) { try {
 
  mkdirsForFile(dest);
  FileInputStream inputStream = new FileInputStream(src.getPath());
  FileOutputStream outputStream = newFileOutputStream(dest.getPath());
  try {
    copyStream(inputStream, outputStream);
    inputStream.close();
  } finally {
    outputStream.close();
  }

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static Object deref(Object o) {
  if (o instanceof Derefable) o = ((Derefable) o).get();
  return o;
}

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

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

static <A> A firstOfType(Collection c, Class<A> type) {
  for (Object x : c)
    if (isInstanceX(type, x))
      return (A) x;
  return null;
}
static Str concept(String name) {
  for (Str s : list(Str.class))
    if (eqic(s.name, name) || containsIgnoreCase(s.otherNames, name))
      return s;
  return new Str(name);
}
static void warnIfOddCount(Object... list) {
  if (odd(l(list)))
    warn("Odd list size: " + struct(list));
}
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 (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static Map synchroTreeMap() {
  return Collections.synchronizedMap(new TreeMap());
}

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

static String substring(String s, int x, int y) {
  return safeSubstring(s, x, y);
}
static void sleep(long ms) {
  ping();
  if (isAWTThread()) throw fail("Should not sleep on AWT thread");
  try {
    Thread.sleep(ms);
  } catch (Exception e) { throw new RuntimeException(e); }
}

static void sleep() { try {
 
  print("Sleeping.");
  synchronized(main.class) { main.class.wait(); }

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static String ymd() {
  return year() + formatInt(month(), 2) + formatInt(dayOfMonth(), 2);
}
static Object derefRef(Object o) {
  if (o instanceof Concept.Ref) o = ((Concept.Ref) o).get();
  return o;
}

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

static void load(String progID, String varName) {
  readLocally(progID, varName);
}
// get purpose 1: access a list/array (safer version of x.get(y))

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

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

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

static Class get_dynamicObject = DynamicObject.class;

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

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

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

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

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

static Field get_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}
static long now_virtualTime;
static long now() {
  return now_virtualTime != 0 ? now_virtualTime : System.currentTimeMillis();
}

static <A extends Concept> Object[] expandParams(Class<A> c, Object[] params) {
  if (l(params) == 1)
    params = new Object[] { singleFieldName(c), params[0] };
  else
    warnIfOddCount(params);
  return params;
}

static String shortClassName(Object o) {
  if (o == null) return null;
  Class c = o instanceof Class ? (Class) o : o.getClass();
  String name = c.getName();
  return shortenClassName(name);
}
static boolean checkConceptFields(Concept x, Object... data) {
  for (int i = 0; i < l(data); i += 2)
    if (neq(cget(x, (String) data[i]), deref(data[i+1])))
      return false;
  return true;
}
static List map(Iterable l, Object f) {
  return map(f, l);
}

static List map(Object f, Iterable l) {
  List x = new ArrayList();
  Object mc = mc();
  for (Object o : unnull(l))
    x.add(callFunction(f, o));
  return x;
}

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

static List map(Map map, Object f) {
  List x = new ArrayList();
  for (Object _e : map.entrySet()) {
    Map.Entry e = (Map.Entry) _e;
    x.add(callFunction(f, e.getKey(), e.getValue()));
  }
  return x;
}
static String programID() {
  return getProgramID();
}
static File getProgramFile(String progID, String fileName) {
  if (new File(fileName).isAbsolute())
    return new File(fileName);
  return new File(getProgramDir(progID), fileName);
}

static File getProgramFile(String fileName) {
  return getProgramFile(getProgramID(), fileName);
}

static void saveLocally(String variableName) {
  saveLocally(programID(), variableName);
}

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

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

static synchronized void saveLocally2(Object obj, String progID, String variableName) {
  File textFile = new File(programDir(progID), variableName + ".text");
  File structureFile = new File(programDir(progID), variableName + ".structure");
  Object x = get(obj, variableName);
  
  if (x == null) {
    textFile.delete();
    structureFile.delete();
  } else if (x instanceof String) {
    saveTextFile(textFile, (String) x);
    structureFile.delete();
  } else {
    saveTextFile(structureFile, structure(x));
    textFile.delete();
  }
}
static int hours() {
  return Calendar.getInstance().get(Calendar.HOUR_OF_DAY);
}
static <A, B> Map<A, B> cloneMap(Map<A, B> map) {
  if (map == null) return litmap();
  // assume mutex is equal to collection, which will be true unless you explicitly pass a mutex to synchronizedList() which no one ever does.
  synchronized(map) {
    return new HashMap(map);
  }
}
static void set(Object o, String field, Object value) {
  if (o instanceof Class) set((Class) o, field, value);
  else try {
    Field f = set_findField(o.getClass(), field);
    smartSet(f, o, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

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

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

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

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

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

static boolean nempty(Iterator i) {
  return i != null && i.hasNext();
}
static int l(Object[] a) { return a == null ? 0 : a.length; }
static int l(boolean[] a) { return a == null ? 0 : a.length; }
static int l(byte[] a) { return a == null ? 0 : a.length; }
static int l(int[] a) { return a == null ? 0 : a.length; }
static int l(float[] a) { return a == null ? 0 : a.length; }
static int l(char[] a) { return a == null ? 0 : a.length; }
static int l(Collection c) { return c == null ? 0 : c.size(); }
static int l(Map m) { return m == null ? 0 : m.size(); }
static int l(CharSequence s) { return s == null ? 0 : s.length(); } 

static int l(Object o) {
  return l((List) o); // incomplete
}

static boolean structure_showTiming, structure_checkTokenCount;

static String structure(Object o) {
  structure_Data d = new structure_Data();
  structure_1(o, d);
  while (nempty(d.stack))
    popLast(d.stack).run();
  String s = str(d.out);
  if (structure_checkTokenCount) {
    print("token count=" + d.n);
    assertEquals("token count", l(javaTokC(s)), d.n);
  }
  return s;
}

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

static int structure_shareStringsLongerThan = 20;

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

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

  LinkedHashMap<String, Object> fv = new LinkedHashMap<String, Object>();
  for (Field f : lFields) {
    Object value;
    try {
      value = f.get(o);
    } catch (Exception e) {
      value = "?";
    }
      
    if (value != null)
      fv.put(f.getName(), value);
  }
  
  String shortName = dropPrefix("main$", name);
    
  // Now we have fields & values. Process fieldValues if it's a DynamicObject.
  
  // omit field "className" if equal to class's name
  if (concept && eq(fv.get("className"), shortName))
    fv.remove("className");
          
  if (o instanceof DynamicObject) {
    fv.putAll((Map) fv.get("fieldValues"));
    fv.remove("fieldValues");
    shortName = dynName;
    fv.remove("className");
  }
  
  String singleField = fv.size() == 1 ? first(fv.keySet()) : null;
  
  d.append(shortName);

  final int l = out.length();
  final Iterator it = fv.entrySet().iterator();
  
  d.stack.add(new Runnable() { public void run() { try { 
    if (!it.hasNext()) {
      if (out.length() != l)
        d.append(")");
    } else {
      Map.Entry e = (Map.Entry) it.next();
      d.append(out.length() == l ? "(" : ", ");
      d.append((String) e.getKey()).append("=");
      d.stack.add(this);
      structure_1(e.getValue(), d);
    }
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "if (!it.hasNext()) {\r\n      if (out.length() != l)\r\n        d.append(\")\");\r\n    } else {\r\n      Map.Entry e = (Map.Entry) it.next();\r\n      d.append(out.length() == l ? \"(\" : \", \");\r\n      d.append((String) e.getKey()).append(\"=\");\r\n      d.stack.add(this);\r\n      structure_1(e.getValue(), d);\r\n    }"; }});
}

static volatile StringBuffer local_log = new StringBuffer(); // not redirected
static volatile StringBuffer print_log = local_log; // might be redirected, e.g. to main bot

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

static boolean print_silent; // total mute if set

static volatile ThreadLocal print_byThread; // special handling by thread

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

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

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

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

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

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

static void print_append(StringBuffer buf, String s, int max) {
  synchronized(buf) {
    buf.append(s);
    max /= 2;
    if (buf.length() > max) try {
      int newLength = max/2;
      int ofs = buf.length()-newLength;
      String newString = buf.substring(ofs);
      buf.setLength(0);
      buf.append("[...] ").append(newString);
    } catch (Exception e) {
      buf.setLength(0);
    }
  }
}
static Object getOpt(Object o, String field) {
  return getOpt_cached(o, field);
}

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

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

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

static Field getOpt_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static long parseLong(String s) {
  if (s == null) return 0;
  return Long.parseLong(dropSuffix("L", s));
}

static long parseLong(Object s) {
  return Long.parseLong((String) s);
}
static boolean equals(Object a, Object b) {
  return a == null ? b == null : a.equals(b);
}
static JTable showTableWithImages(final String title, final List<String> cols, final List<List> data) {
  return showTableWithImages(title, cols, data, null);
}

static JTable showTableWithImages(final String title, final List<String> cols, final List<List> data, final JTable _table) {
  return (JTable) swingAndWait(new Object() { Object get() { 
    JTable table = _table != null ? _table : sexyTable();
    fillTableWithData(table, data, cols);
    if (_table == null)
      table.setRowHeight(100);
    showFrame(title, table);
    return table;
   }
  public String toString() { return "JTable table = _table != null ? _table : sexyTable();\r\n    fillTableWithData(table, data, cols);\r\n    if (_table == null)\r\n      table.setRowHeight(100);\r\n    showFrame(title, table);\r\n    ret table;"; }});
}
static String md5OfBWImage(BWImage img) { try {
 
  MessageDigest m = MessageDigest.getInstance("MD5");
  m.update(intToBytes(img.getWidth()));
  return bytesToHex(m.digest(img.getBytes()));

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static boolean hasType(Collection c, Class type) {
  for (Object x : c)
    if (isInstanceX(type, x))
      return true;
  return false;
}


static String struct(Object o) {
  return structure(o);
}
static int year() {
  return Calendar.getInstance().get(Calendar.YEAR);
}
static Object callFunction(Object f, Object... args) {
  if (f == null) return null;
  if (f instanceof Runnable) {
    ((Runnable) f).run();
    return null;
  } else if (f instanceof String)
    return call(mc(), (String) f, args);
  else
    return call(f, "get", args);
  //else throw fail("Can't call a " + getClassName(f));
}
// hopefully covers all cases :)
static String safeSubstring(String s, int x, int y) {
  if (s == null) return null;
  if (x < 0) x = 0;
  if (x > s.length()) return "";
  if (y < x) y = x;
  if (y > s.length()) y = s.length();
  return s.substring(x, y);
}

static String safeSubstring(String s, int x) {
  return safeSubstring(s, x, l(s));
}

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

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

  public static String join(String glue, Iterable<String> strings) {
    StringBuilder buf = new StringBuilder();
    Iterator<String> i = strings.iterator();
    if (i.hasNext()) {
      buf.append(i.next());
      while (i.hasNext())
        buf.append(glue).append(i.next());
    }
    return buf.toString();
  }
  
  public static String join(String glue, String[] strings) {
    return join(glue, Arrays.asList(strings));
  }
  
  public static String join(Iterable<String> strings) {
    return join("", strings);
  }
  
  public static String join(String[] strings) {
    return join("", strings);
  }

static boolean isAWTThread() {
  if (isAndroid()) return false;
  if (isHeadless()) return false;
  return isTrue(callOpt(getClass("javax.swing.SwingUtilities"), "isEventDispatchThread"));
}
static float autoCropOfBWImage_threshold = 0.9f;

static Rect autoCropOfBWImage(BWImage img) {
  return autoCropOfBWImage(img, new Rect(0, 0, img.getWidth(), img.getHeight()));
}

static Rect autoCropOfBWImage(BWImage img, Rect r) {
  return autoCropOfBWImage(img, r, autoCropOfBWImage_threshold);
}

// r = initial rectangle
static Rect autoCropOfBWImage(BWImage img, Rect r, float threshold) {
  int x1 = r.x, y1 = r.y, x2 = r.x2(), y2 = r.y2();

  // left side

  end1:
  while (x1 < x2) {
    for (int y = y1; y < y2; y++)
      if (img.getPixel(x1, y) <= threshold)
        break end1;
    x1++;
  }

  // top side

  end2:
  while (y1 < y2) {
    for (int x = x1; x < x2; x++)
      if (img.getPixel(x, y1) <= threshold)
        break end2;
    y1++;
  }

  // right side

  end3:
  while (x2 > x1) {
    for (int y = y1; y < y2; y++)
      if (img.getPixel(x2-1, y) <= threshold)
        break end3;
    x2--;
  }

  // bottom side

  end4:
  while (y2 > y1) {
    for (int x = x1; x < x2; x++)
      if (img.getPixel(x, y2-1) <= threshold)
        break end4;
    y2--;
  }

  if (x2 <= x1 || y2 <= y1)
    return r;
  else
    return new Rect(x1, y1, x2 - x1, y2 - y1);
}

static String shortDynamicClassName(Object o) {
 if (o instanceof DynamicObject && ((DynamicObject) o).className != null)
    return ((DynamicObject) o).className;
  return shortClassName(o);
}
static String dropPrefix(String prefix, String s) {
  return s.startsWith(prefix) ? s.substring(l(prefix)) : s;
}
static void swingAndWait(Runnable r) { try {
 
  if (isAWTThread())
    r.run();
  else
    EventQueue.invokeAndWait(r);

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

static Object swingAndWait(final Object f) {
  if (isAWTThread())
    return callF(f);
  else {
    final Var result = new Var();
    swingAndWait(new Runnable() { public void run() { try { 
      result.set(callF(f));
    
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "result.set(callF(f));"; }});
    return result.get();
  }
}
static void printStackTrace(Throwable e) {
  // we go to system.out now - system.err is nonsense
  print(getStackTrace(e));
}

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

static void printStackTrace(String indent, Throwable e) {
  if (endsWithLetter(indent)) indent += " ";
  printIndent(indent, getStackTrace(e));
}
  static List<String> codeTokensOnly(List<String> tok) {
    List<String> l = new ArrayList<String>();
    for (int i = 1; i < tok.size(); i += 2)
      l.add(tok.get(i));
    return l;
  }
static Map litmap(Object... x) {
  TreeMap map = new TreeMap();
  litmap_impl(map, x);
  return map;
}

static void litmap_impl(Map map, Object... x) {
  for (int i = 0; i < x.length-1; i += 2)
    if (x[i+1] != null)
      map.put(x[i], x[i+1]);
}
static boolean odd(int i) {
  return (i & 1) != 0;
}
static String shortenClassName(String name) {
  return name == null ? null : substring(name, xIndexOf(name, '$')+1);
}
static String getType(Object o) {
  return getClassName(o);
}
static int dayOfMonth() {
  return days();
}
static boolean isJavaIdentifier(String s) {
  if (s.length() == 0 || !Character.isJavaIdentifierStart(s.charAt(0)))
    return false;
  for (int i = 1; i < s.length(); i++)
    if (!Character.isJavaIdentifierPart(s.charAt(i)))
      return false;
  return true;
}
static TimerTask timerTask(final Runnable r) {
  return new TimerTask() {
    public void run() {
      try { /* pcall 1*/ 
        r.run();
      /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
    }
  };
}
static volatile boolean ping_pauseAll;
static int ping_sleep = 100; // poll pauseAll flag every 100
static volatile boolean ping_anyActions;
static Map<Thread, Object> ping_actions = synchroMap(new WeakHashMap());

// returns true if it did anything
static boolean ping() { try {
 
  if (ping_pauseAll && !isAWTThread()) {
    do
      Thread.sleep(ping_sleep);
    while (ping_pauseAll);
    return true;
  }
  
  if (ping_anyActions) {
    Object action;
    synchronized(mc()) {
      action = ping_actions.get(currentThread());
      if (action instanceof Runnable)
        ping_actions.remove(currentThread());
      if (ping_actions.isEmpty()) ping_anyActions = false;
    }
    
    if (action instanceof Runnable)
      ((Runnable) action).run();
    else if (eq(action, "cancelled"))
      throw fail("Thread cancelled.");
  }
  
  return false;

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

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

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

static String getProgramID(Object o) {
  return getProgramID(getMainClass(o));
}
static int cmp(Number a, Number b) {
  return a == null ? b == null ? 0 : -1 : cmp(a.doubleValue(), b.doubleValue());
}

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

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

static int cmp(Object a, Object b) {
  if (a == null) return b == null ? 0 : -1;
  if (b == null) return 1;
  return ((Comparable) a).compareTo(b);
}
static String unnull(String s) {
  return s == null ? "" : s;
}

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

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

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

static BitSet unnull(BitSet b) {
  return b == null ? new BitSet() : b;
}
// replacement for class JavaTok
// maybe incomplete, might want to add floating point numbers
// todo also: extended multi-line strings

static int javaTok_n, javaTok_elements;
static boolean javaTok_opt;

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

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

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

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

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

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

static int structure_internStringsLongerThan = 50;

// classFinder: func(name) -> class (optional)
static Object unstructure(String text, final boolean allDynamic,
  final Object classFinder) {
  if (text == null) return null;
  final List<String> tok = javaTokC(text);
  final boolean debug = unstructure_debug;

  class X {
    int i = 0;
    HashMap<Integer, Object> refs = new HashMap<Integer, Object>();
    HashMap<Integer, Object> tokrefs = new HashMap<Integer, Object>();
    HashSet<String> concepts = new HashSet<String>();
    HashMap<String, Class> classesMap = new HashMap<String, Class>();

    Object parse() {
      String t = tok.get(i);
      
      int refID = 0;
      if (structure_isMarker(t, 0, l(t))) {
        refID = parseInt(t.substring(1));
        i++;
      }
      
      // if (debug) print("parse: " + quote(t));
      
      int tokIndex = i;  
      Object o = parse_inner(refID, tokIndex);
      if (refID != 0)
        refs.put(refID, o);
      if (o != null)
        tokrefs.put(tokIndex, o);
      return o;
    }
    
    Object parse_inner(int refID, int tokIndex) {
      String t = tok.get(i);
      
      // if (debug) print("parse_inner: " + quote(t));
      
      Class c = classesMap.get(t);
      if (c == null) {
        if (t.startsWith("\"")) {
          String s = internIfLongerThan(unquote(tok.get(i)), structure_internStringsLongerThan);
          i++;
          return s;
        }
        
        if (t.startsWith("'"))
          return unquoteCharacter(tok.get(i++));
        if (t.equals("bigint"))
          return parseBigInt();
        if (t.equals("d"))
          return parseDouble();
        if (t.equals("fl"))
          return parseFloat();
        if (t.equals("false") || t.equals("f")) {
          i++; return false;
        }
        if (t.equals("true") || t.equals("t")) {
          i++; return true;
        }
        if (t.equals("-")) {
          t = tok.get(i+1);
          i += 2;
          return isLongConstant(t) ? (Object) (-parseLong(t)) : (Object) (-parseInt(t));
        }
        if (isInteger(t) || isLongConstant(t)) {
          i++;
          //if (debug) print("isLongConstant " + quote(t) + " => " + isLongConstant(t));
          if (isLongConstant(t)) return parseLong(t);
          long l = parseLong(t);
          boolean isInt = l == (int) l;
          if (debug)
            print("l=" + l + ", isInt: " + isInt);
          return isInt ? (Object) new Integer((int) l) : (Object) new Long(l);
        }
        
        if (t.equals("File")) {
          File f = new File(unquote(tok.get(i+1)));
          i += 2;
          return f;
        }
        
        if (t.startsWith("r") && isInteger(t.substring(1))) {
          i++;
          int ref = Integer.parseInt(t.substring(1));
          Object o = refs.get(ref);
          if (o == null)
            print("Warning: unsatisfied back reference " + ref);
          return o;
        }
      
        if (t.startsWith("t") && isInteger(t.substring(1))) {
          i++;
          int ref = Integer.parseInt(t.substring(1));
          Object o = tokrefs.get(ref);
          if (o == null)
            print("Warning: unsatisfied token reference " + ref);
          return o;
        }
        
        if (t.equals("hashset"))
          return parseHashSet();
        if (t.equals("treeset"))
          return parseTreeSet();
        if (eqOneOf(t, "hashmap", "hm"))
          return parseHashMap();
        if (t.equals("{"))
          return parseMap();
        if (t.equals("["))
          return parseList();
        if (t.equals("bitset"))
          return parseBitSet();
        if (t.equals("array") || t.equals("intarray"))
          return parseArray();
        if (t.equals("ba")) {
          String hex = unquote(tok.get(i+1));
          i += 2;
          return hexToBytes(hex);
        }
        if (t.equals("boolarray")) {
          int n = parseInt(tok.get(i+1));
          String hex = unquote(tok.get(i+2));
          i += 6;
          return boolArrayFromBytes(hexToBytes(hex), n);
        }
        if (t.equals("class"))
          return parseClass();
        if (t.equals("l"))
          return parseLisp();
        if (t.equals("null")) {
          i++; return null;
        }
        
        /* in dev.
        if (!allDynamic && t.equals("run")) {
          S snippetID = unquote(t.get(i+1));
          i += 2;
          run(
        }
        */
        
        if (eq(t, "c")) {
          consume("c");
          t = tok.get(i);
          assertTrue(isJavaIdentifier(t));
          concepts.add(t);
        }
      }
      
      if (c == null && !isJavaIdentifier(t))
        throw new RuntimeException("Unknown token " + (i+1) + ": " + t);

      // any other class name
      if (c == null) {
        // First, find class
        if (allDynamic) c = null;
        else if (classFinder != null)
          c = (Class) callF(classFinder, t);
        else
          c = findClass(t);
        if (c != null)
          classesMap.put(t, c);
      }
          
      // Check if it has an outer reference
      i++;
      boolean hasOuter = eq(get(tok, i), "(") && eq(get(tok, i+1), "this$1");
      
      DynamicObject dO = null;
      Object o = null;
      if (c != null)
        o = hasOuter ? nuStubInnerObject(c) : nuEmptyObject(c);
      else {
        if (concepts.contains(t) && (c = findClass("Concept")) != null)
          o = dO = (DynamicObject) nuEmptyObject(c);
        else
          dO = new DynamicObject();
        dO.className = t;
        if (debug) print("Made dynamic object " + t + " " + shortClassName(dO));
      }
      
      // Save in references list early because contents of object
      // might link back to main object
      
      if (refID != 0)
        refs.put(refID, o != null ? o : dO);
      tokrefs.put(tokIndex, o != null ? o : dO);
      
      // NOW parse the fields!
      
      Map<String, Object> fields = new TreeMap<String, Object>();
      if (i < tok.size() && tok.get(i).equals("(")) {
        consume("(");
        while (!tok.get(i).equals(")")) {
          String key = unquote(tok.get(i));
          i++;
          consume("=");
          Object value = parse();
          fields.put(key, value);
          if (tok.get(i).equals(",")) i++;
        }
        consume(")");
      }

      if (o != null)
        if (dO != null) {
          if (debug)
            printStructure("setOptAllDyn", fields);
          setOptAllDyn(dO, fields);
        } else
          setOptAll(o, fields);
      else for (String field : keys(fields))
        dO.fieldValues.put(field.intern(), fields.get(field));

      if (o != null)
        pcallOpt_noArgs(o, "_doneLoading");
      return o != null ? o : dO;
    }
    
    Object parseSet(Set set) {
      set.addAll((List) parseList());
      return set;
    }
    
    Object parseLisp() {
      consume("l");
      consume("(");
      ArrayList list = new ArrayList();
      while (!tok.get(i).equals(")")) {
        list.add(parse());
        if (tok.get(i).equals(",")) i++;
      }
      consume(")");
      return newObject("main$Lisp", (String) list.get(0), subList(list, 1));
    }
    
    Object parseBitSet() {
      consume("bitset");
      consume("{");
      BitSet bs = new BitSet();
      while (!tok.get(i).equals("}")) {
        bs.set((Integer) parse());
        if (tok.get(i).equals(",")) i++;
      }
      consume("}");
      return bs;
    }
    
    Object parseList() {
      consume("[");
      ArrayList list = new ArrayList();
      while (!tok.get(i).equals("]")) {
        Object o = parse();
        //if (debug) print("List element type: " + getClassName(o));
        list.add(o);
        if (tok.get(i).equals(",")) i++;
      }
      consume("]");
      return list;
    }
    
    Object parseArray() {
      String type = tok.get(i);
      i++;
      consume("{");
      List list = new ArrayList();
      
      while (!tok.get(i).equals("}")) {
        list.add(parse());
        if (tok.get(i).equals(",")) i++;
      }
      consume("}");
      if (type.equals("intarray"))
        return toIntArray(list);
      return list.toArray();
    }
    
    Object parseClass() {
      consume("class");
      consume("(");
      String name = tok.get(i);
      i++;
      consume(")");
      Class c = allDynamic ? null : findClass(name);
      if (c != null) return c;
      DynamicObject dO = new DynamicObject();
      dO.className = "java.lang.Class";
      dO.fieldValues.put("name", name);
      return dO;
    }
    
    Object parseBigInt() {
      consume("bigint");
      consume("(");
      String val = tok.get(i);
      i++;
      if (eq(val, "-")) {
        val = "-" + tok.get(i);
        i++;
      }
      consume(")");
      return new BigInteger(val);
    }
    
    Object parseDouble() {
      consume("d");
      consume("(");
      String val = unquote(tok.get(i));
      i++;
      consume(")");
      return Double.parseDouble(val);
    }
    
    Object parseFloat() {
      consume("fl");
      String val;
      if (eq(tok.get(i), "(")) {
        consume("(");
        val = unquote(tok.get(i));
        i++;
        consume(")");
      } else {
        val = unquote(tok.get(i));
        i++;
      }
      return Float.parseFloat(val);
    }
    
    Object parseHashMap() {
      i++;
      return parseMap(new HashMap());
    }
    
    Object parseHashSet() {
      consume("hashset");
      return parseSet(new HashSet());
    }
    
    Object parseTreeSet() {
      consume("treeset");
      return parseSet(new TreeSet());
    }
    
    Object parseMap() {
      return parseMap(new TreeMap());
    }
    
    Object parseMap(Map map) {
      consume("{");
      while (!tok.get(i).equals("}")) {
        Object key = parse();
        consume("=");
        Object value = parse();
        map.put(key, value);
        if (tok.get(i).equals(",")) i++;
      }
      consume("}");
      return map;
    }
    
    void consume(String s) {
      if (!tok.get(i).equals(s)) {
        String prevToken = i-1 >= 0 ? tok.get(i-1) : "";
        String nextTokens = join(tok.subList(i, Math.min(i+2, tok.size())));
        throw fail(quote(s) + " expected: " + prevToken + " " + nextTokens + " (" + i + "/" + tok.size() + ")");
      }
      i++;
    }
  }
  
  return new X().parse();
}

static boolean unstructure_debug;
static <A> ArrayList<A> litlist(A... a) {
  return new ArrayList<A>(Arrays.asList(a));
}
static JFrame showFrame() {
  return makeFrame();
}

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

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

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

static JFrame showFrame(JFrame frame) {
  if (frameTooSmall(frame)) frameStandardSize(frame);
  frame.setVisible(true);
  return frame;
}

// make or update frame
static JFrame showFrame(String title, Object content, JFrame frame) {
  if (frame == null)
    return showFrame(title, content);
  else {
    frame.setTitle(title);
    setFrameContents(frame, content);
    return frame;
  }
}
static List<String> javaTokC(String s) {
  int l = s.length();
  ArrayList<String> tok = new ArrayList<String>();
  
  int i = 0;
  while (i < l) {
    int j = i;
    char c, d;
    
    // scan for whitespace
    while (j < l) {
      c = s.charAt(j);
      d = j+1 >= l ? '\0' : s.charAt(j+1);
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
        ++j;
      else if (c == '/' && d == '*') {
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
        j = Math.min(j+2, l);
      } else if (c == '/' && d == '/') {
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
      } else
        break;
    }
    
    i = j;
    if (i >= l) break;
    c = s.charAt(i);
    d = i+1 >= l ? '\0' : s.charAt(i+1);

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

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

static <A> A assertEquals(String msg, Object x, A y) {
  if (!(x == null ? y == null : x.equals(y)))
    throw fail((msg != null ? msg + ": " : "") + x + " != " + y);
  return y;
}
static File getProgramDir() {
  return programDir();
}

static File getProgramDir(String snippetID) {
  return programDir(snippetID);
}
  static Object call(Object o) {
    return callFunction(o);
  }
  
  // varargs assignment fixer for a single string array argument
  static Object call(Object o, String method, String[] arg) {
    return call(o, method, new Object[] {arg});
  }
  
  static Object call(Object o, String method, Object... args) {
    try {
      if (o instanceof Class) {
        Method m = call_findStaticMethod((Class) o, method, args, false);
        m.setAccessible(true);
        return m.invoke(null, args);
      } else {
        Method m = call_findMethod(o, method, args, false);
        m.setAccessible(true);
        return m.invoke(o, args);
      }
    } catch (Exception e) {
      throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e);
    }
  }

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

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

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

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

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


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

static Field[] getDeclaredFields_cached(Class c) {
  Field[] fields;
  synchronized(getDeclaredFields_cache) {
    fields = getDeclaredFields_cache.get(c);
    if (fields == null) {
      getDeclaredFields_cache.put(c, fields = c.getDeclaredFields());
      for (Field f : fields)
        f.setAccessible(true);
    }
  }
  return fields;
}
static JTable sexyTable() {
  final JTable table = tableWithToolTips();
  
  tablePopupMenu(table, new Object() { void get(JPopupMenu menu, final int row) { 
    final String item = first(getTableLine(table, row));
    MouseEvent e = tablePopupMenu_mouseEvent.get();
    final int col = table.columnAtPoint(e.getPoint());

    menu.add(jmenuItem("Copy text to clipboard", new Runnable() { public void run() { try { 
      String text = str(table.getModel().getValueAt(row, col));
      copyTextToClipboard(text);
      print("Copied text to clipboard: " + quote(text));
    
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "String text = str(table.getModel().getValueAt(row, col));\r\n      copyTextToClipboard(text);\r\n      print(\"Copied text to clipboard: \" + quote(text));"; }}));
    
    menu.add(jmenuItem("Copy text to clipboard quoted", new Runnable() { public void run() { try { 
      String text = str(table.getModel().getValueAt(row, col));
      copyTextToClipboard(quote(text));
      print("Copied text to clipboard (quoted): " + quote(text));
    
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "String text = str(table.getModel().getValueAt(row, col));\r\n      copyTextToClipboard(quote(text));\r\n      print(\"Copied text to clipboard (quoted): \" + quote(text));"; }}));
   }
  public String toString() { return "final S item = first(getTableLine(table, row));\r\n    MouseEvent e = tablePopupMenu_mouseEvent.get();\r\n    final int col = table.columnAtPoint(e.getPoint());\r\n\r\n    menu.add(jmenuItem(\"Copy text to clipboard\", r {\r\n      S text = str(table.getModel().getValueAt(row, col));\r\n      copyTextToClipboard(text);\r\n      print(\"Copied text to clipboard: \" + quote(text));\r\n    }));\r\n    \r\n    menu.add(jmenuItem(\"Copy text to clipboard quoted\", r {\r\n      S text = str(table.getModel().getValueAt(row, col));\r\n      copyTextToClipboard(quote(text));\r\n      print(\"Copied text to clipboard (quoted): \" + quote(text));\r\n    }));"; }});
  
  // Disable Ctrl+PageUp and Ctrl+PageDown
  
  table.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP, InputEvent.CTRL_MASK), "none");
  //table.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_DOWN, InputEvent.CTRL_MASK), "none");
  /*table.registerKeyboardAction(
    null,
    KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP, InputEvent.CTRL_MASK),
    JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT
  );*/
  table.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT)
    .put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP, InputEvent.CTRL_MASK), "none");
  table.getInputMap(JComponent.WHEN_FOCUSED)
    .put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP, InputEvent.CTRL_MASK), "none");
  table.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT)
    .put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP, InputEvent.CTRL_MASK), "none");
  table.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
    .put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP, InputEvent.CTRL_MASK), "none");
  ((InputMap) UIManager.get("Table.ancestorInputMap")).put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP, InputEvent.CTRL_MASK), "none");
    
  return table;
}
static String boolArrayToHex(boolean[] a) {
  return bytesToHex(boolArrayToBytes(a));
}
static <A extends Concept> A findConceptWhere(Class<A> c, Object... params) {
  params = expandParams(c, params);
  for (A x : list(c))
    if (checkConceptFields(x, params))
      return x;
  return null;
}

static Object first(Object list) {
  return ((List) list).isEmpty() ? null : ((List) list).get(0);
}

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

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

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

static void fillTableWithData(final JTable table, List<List> rows, List<String> colNames) {
  fillTableWithData(table, rows, toStringArray(colNames));
}

// thread-safe
static void fillTableWithData(final JTable table, List<List> rows, String... colNames) {
  final DefaultTableModel model = fillTableWithData_makeModel(rows, colNames);
  
  swingNowOrLater(new Runnable() { public void run() { try { 
    setTableModel(table, model);
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "setTableModel(table, model);"; }});
}

static DefaultTableModel fillTableWithData_makeModel(List<List> rows, String... colNames) {
  Object[][] data = new Object[rows.size()][];
  int w = 0;
  for (int i = 0; i < rows.size(); i++) {
    List l = rows.get(i);
    Object[] r = new Object[l.size()];
    for (int j = 0; j < l.size(); j++) {
      Object o = l.get(j);
      if (o instanceof BufferedImage) o = imageIcon((BufferedImage) o);
      r[j] = o;
    }
    data[i] = r;
    w = Math.max(w, l.size());
  }
  Object[] columnNames = new Object[w];
  for (int i = 0; i < w; i++)
    columnNames[i] = i < l(colNames) ? colNames[i] : "?";
  return new DefaultTableModel(data, columnNames) {
    public Class getColumnClass(int column) {
      return or(getValueAt(0, column).getClass(), String.class);
    }
  };
}

  public static String bytesToHex(byte[] bytes) {
    return bytesToHex(bytes, 0, bytes.length);
  }

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

static RuntimeException asRuntimeException(Throwable t) {
  return t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
}
static Object mc() {
  return getMainClass();
}
static File programDir_mine; // set this to relocate program's data

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

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

static boolean neq(Object a, Object b) {
  return !eq(a, b);
}
static byte[] intToBytes(int i) {
  return new byte[] {
          (byte) (i >>> 24),
          (byte) (i >>> 16),
          (byte) (i >>> 8),
          (byte) i};
}
// extended over Class.isInstance() to handle primitive types
static boolean isInstanceX(Class type, Object arg) {
  if (type == boolean.class) return arg instanceof Boolean;
  if (type == int.class) return arg instanceof Integer;
  if (type == long.class) return arg instanceof Long;
  if (type == float.class) return arg instanceof Float;
  if (type == short.class) return arg instanceof Short;
  if (type == char.class) return arg instanceof Character;
  if (type == byte.class) return arg instanceof Byte;
  if (type == double.class) return arg instanceof Double;
  return type.isInstance(arg);
}
static String singleFieldName(Class c) {
  Set<String> l = listFields(c);
  if (l(l) != 1)
    throw fail("No single field found in " + c + " (have " + n(l(l), "fields") + ")");
  return first(l);
}
static boolean isFalse(Object o) {
  return eq(false, o);
}
static <T> void sort(T[] a, Comparator<? super T> c) {
  Arrays.sort(a, c);
}

static <T> void sort(T[] a) {
  Arrays.sort(a);
}

static <T> void sort(List<T> a, Comparator<? super T> c) {
  Collections.sort(a, c);
}

static void sort(List a) {
  Collections.sort(a);
}
static int month() {
  return Calendar.getInstance().get(Calendar.MONTH)+1;
}
static String loadGZTextFile(File file) { try {
 
  if (!file.isFile()) return null;
  ByteArrayOutputStream fos = new ByteArrayOutputStream();
  InputStream fis = new FileInputStream(file);
  GZIPInputStream gis = new GZIPInputStream(fis);
  try {
    byte[] buffer = new byte[1024];
    int len;
    while((len = gis.read(buffer)) != -1){
        fos.write(buffer, 0, len);
    }
  } finally {
    fis.close();
  }
  fos.close();
  return fromUtf8(fos.toByteArray()); // TODO: use a Reader

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static boolean containsNewLine(String s) {
  return contains(s, '\n'); // screw \r, nobody needs it
}
public static File mkdirsForFile(File file) {
  File dir = file.getParentFile();
  if (dir != null) // is null if file is in current dir
    dir.mkdirs();
  return file;
}

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

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

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

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

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

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

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


static final WeakHashMap<Class, HashMap<String, Field>> getOpt_cache = new WeakHashMap();
static final HashMap getOpt_special = new HashMap(); // just a marker

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

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

  Class c = o.getClass();
  HashMap<String, Field> map;
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  
  if (map == getOpt_special) {
    if (o instanceof Class)
      return getOpt((Class) o, field);
    if (o instanceof String)
      return getOpt(getBot((String) o), field);
    if (o instanceof Map)
      return ((Map) o).get(field);
  }
    
  Field f = map.get(field);
  if (f != null) return f.get(o);
  if (o instanceof DynamicObject)
    return ((DynamicObject) o).fieldValues.get(field);
  return null;

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

// used internally - we are in synchronized block
static HashMap<String, Field> getOpt_makeCache(Class c) {
  HashMap<String, Field> map;
  if (isSubtypeOf(c, Map.class))
    map = getOpt_special;
  else {
    map = new HashMap();
    Class _c = c;
    do {
      for (Field f : _c.getDeclaredFields()) {
        f.setAccessible(true);
        String name = f.getName();
        if (!map.containsKey(name))
          map.put(name, f);
      }
      _c = _c.getSuperclass();
    } while (_c != null);
  }
  getOpt_cache.put(c, map);
  return map;
}
static List emptyList() {
  return new ArrayList();
  //ret Collections.emptyList();
}
static <A> List<A> synchroList() {
  return Collections.synchronizedList(new ArrayList<A>());
}

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

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

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

static FileOutputStream newFileOutputStream(String path, boolean append) throws IOException {
  FileOutputStream f = new // Line break for ancient translator
    FileOutputStream(path, append);
  callJavaX("registerIO", f, path, true);
  return f;
}
static String padLeft(String s, char c, int n) {
  return rep(c, n-l(s)) + s;
}
  public static String loadTextFile(String fileName) {
    return loadTextFile(fileName, null);
  }
  
  public static String loadTextFile(String fileName, String defaultContents) {
    try {
      if (!new File(fileName).exists())
        return defaultContents;
  
      FileInputStream fileInputStream = new FileInputStream(fileName);
      InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8");
      return loadTextFile(inputStreamReader);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
  
  public static String loadTextFile(File fileName) {
      return loadTextFile(fileName, null);
  }

  public static String loadTextFile(File fileName, String defaultContents) {
      return loadTextFile(fileName.getPath(), defaultContents);
  }
  
  public static String loadTextFile(Reader reader) throws IOException {
    StringBuilder builder = new StringBuilder();
    try {
      char[] buffer = new char[1024];
      int n;
      while (-1 != (n = reader.read(buffer)))
        builder.append(buffer, 0, n);
        
    } finally {
      reader.close();
    }
    return builder.toString();
  }
static boolean isEmpty(Collection c) {
  return c == null || c.isEmpty();
}

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

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

static boolean isEmpty(Map map) {
  return map == null || map.isEmpty();
}
static String dropSuffix(String suffix, String s) {
  return s.endsWith(suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
static void smartSet(Field f, Object o, Object value) throws Exception {
  f.setAccessible(true);
  
  // take care of common case (long to int)
  if (f.getType() == int.class && value instanceof Long)
    value = ((Long) value).intValue();
    
  f.set(o, value);
}
static boolean eqic(String a, String b) {
  if ((a == null) != (b == null)) return false;
  if (a == null) return true;
  return a.equalsIgnoreCase(b);
}
static boolean containsIgnoreCase(List<String> l, String s) {
  for (String x : l)
    if (eqic(x, s))
      return true;
  return false;
}

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

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

static boolean containsIgnoreCase(String a, String b) {
  return indexOfIgnoreCase(a, b) >= 0;
}
static String dynamicClassName(Object o) {
  if (o instanceof DynamicObject && ((DynamicObject) o).className != null)
    return "main$" + ((DynamicObject) o).className;
  return className(o);
}
static <A> A popLast(List<A> l) {
  return liftLast(l);
}
static void copyStream(InputStream in, OutputStream out) { try {
 
  byte[] buf = new byte[65536];
  while (true) {
    int n = in.read(buf);
    if (n <= 0) return;
    out.write(buf, 0, n);
  }

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static int stdcompare(Number a, Number b) {
  return cmp(a, b);
}

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

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

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



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

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

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

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

static JFrame makeFrame(String title, Object content, boolean showIt) {
  if (getFrame(content) != null)
    return setFrameTitle((Component) content, title);
  JFrame frame = new JFrame(title);
  if (content != null)
    frame.getContentPane().add(wrap(content));
  frame.setBounds(300, 100, 500, 400);
  if (showIt)
    frame.setVisible(true);
  //callOpt(content, "requestFocus");
  //exitOnFrameClose(frame);
  
  // standard right-click behavior on titles
  if (isSubstanceLAF())
    titlePopupMenu(frame,
      new Object() { void get(JPopupMenu menu) { 
        menu.add(jmenuItem("Restart Program", new Runnable() { public void run() { try {  restart() ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "restart()"; }}));
        menu.add(jmenuItem("Show Console", new Runnable() { public void run() { try {  showConsole() ;
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "showConsole()"; }}));
       }
  public String toString() { return "menu.add(jmenuItem(\"Restart Program\", r { restart() }));\r\n        menu.add(jmenuItem(\"Show Console\", r { showConsole() }));"; }});
  return frame;
}
// This is for main classes that are all static.
// (We don't go to base classes.)
static Set<String> listFields(Object c) {
  TreeSet<String> fields = new TreeSet<String>();
  for (Field f : _getClass(c).getDeclaredFields())
    fields.add(f.getName());
  return fields;
}
static void setFrameContents(JFrame frame, Object contents) {
  frame.getContentPane().removeAll();
  frame.getContentPane().add(wrap(contents));
  revalidate(frame);
}
static Thread currentThread() {
  return Thread.currentThread();
}
static byte[] hexToBytes(String s) {
  int n = l(s) / 2;
  byte[] bytes = new byte[n];
  for (int i = 0; i < n; i++) {
    String hex = substring(s, i*2, i*2+2);
    try {
      bytes[i] = (byte) parseHexByte(hex);
    } catch (Throwable _e) {
      throw fail("Bad hex byte: " + quote(hex) + " at " + i*2 + "/" + l(s));
    }
  }
  return bytes;
}
// returns l(s) if not found
static int xIndexOf(String s, String sub, int i) {
  if (s == null) return 0;
  i = s.indexOf(sub, min(i, l(s)));
  return i >= 0 ? i : l(s);
}

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

static int xIndexOf(String s, char c) {
  if (s == null) return 0;
  int i = s.indexOf(c);
  return i >= 0 ? i : l(s);
}
static HashMap<Class, Constructor> nuEmptyObject_cache = new HashMap<Class, Constructor>();

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

  return (A) ctr.newInstance();

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

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

static boolean setOptAllDyn_debug;

static void setOptAllDyn(DynamicObject o, Map<String, Object> fields) {
  if (fields == null) return;
  for (String field : keys(fields)) {
    Object val = fields.get(field);
    boolean has = hasField(o, field);
    if (has)
      setOpt(o, field, val);
    else {
      o.fieldValues.put(field.intern(), val);
      if (setOptAllDyn_debug) print("setOptAllDyn added dyn " + field + " to " + o + " [value: " + val + ", fieldValues = " + systemHashCode(o.fieldValues) + ", " + struct(keys(o.fieldValues)) + "]");
    }
  }
}
static String quickSubstring(String s, int i, int j) {
  if (i == j) return "";
  return s.substring(i, j);
}
static <A> A liftLast(List<A> l) {
  if (l.isEmpty()) return null;
  int i = l(l)-1;
  A a = l.get(i);
  l.remove(i);
  return a;
}
static void setTableModel(JTable table, TableModel model) {
  int i = table.getSelectedRow();
  table.setModel(model);
  if (i >= 0 && i < model.getRowCount())
    table.setRowSelectionInterval(i, i);
}

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

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

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

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

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static <A> List<A> subList(List<A> l, int startIndex) {
  return subList(l, startIndex, l(l));
}

static <A> List<A> subList(List<A> l, int startIndex, int endIndex) {
  startIndex = max(0, min(l(l), startIndex));
  endIndex = max(0, min(l(l), endIndex));
  if (startIndex > endIndex) return litlist();
  return l.subList(startIndex, endIndex);
}
static String[] toStringArray(Collection<String> c) {
  String[] a = new String[l(c)];
  Iterator<String> it = c.iterator();
  for (int i = 0; i < l(a); i++)
    a[i] = it.next();
  return a;
}

static String[] toStringArray(Object o) {
  if (o instanceof String[])
    return (String[]) o;
  else if (o instanceof Collection)
    return toStringArray((Collection<String>) o);
  else
    throw fail("Not a collection or array: " + structure(o));
}

static String n(long l, String name) {
  return l + " " + (l == 1 ? singular(name) : getPlural(name));
}
// hmm, this shouldn't call functions really. That was just
// for coroutines.
static boolean isTrue(Object o) {
  if (o instanceof Boolean)
    return ((Boolean) o).booleanValue();
  if (o == null) return false;
  return ((Boolean) callF(o)).booleanValue();
}

static boolean isTrue(Object pred, Object arg) {
  return booleanValue(callF(pred, arg));
}

static void copyTextToClipboard(String text) {
  StringSelection selection = new StringSelection(text);
  Toolkit.getDefaultToolkit().getSystemClipboard().setContents(selection, selection);
}
static int days() {
  return Calendar.getInstance().get(Calendar.DAY_OF_MONTH);
}
static boolean frameTooSmall(JFrame frame) {
  return frame.getWidth() < 100 || frame.getHeight() < 50;
}
static Boolean isHeadless_cache;

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

static String formatSnippetID(long id) {
  return "#" + id;
}
static String rep(int n, char c) {
  return repeat(c, n);
}

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

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

static Object callJavaX(String method, Object... args) {
  return callOpt(getJavaX(), method, args);
}
static List<String> getTableLine(JTable tbl, int row) {
  if (row >= 0 && row < tbl.getModel().getRowCount()) {
    List<String> l = new ArrayList<String>();
    for (int i = 0; i < tbl.getModel().getColumnCount(); i++)
      l.add(String.valueOf(tbl.getModel().getValueAt(row, i)));
    return l;
  }
  return null;
}
static void frameStandardSize(JFrame frame) {
  frame.setBounds(300, 100, 500, 400);
}
  public static String unquote(String s) {
    if (s == null) return null;
    if (s.startsWith("[")) {
      int i = 1;
      while (i < s.length() && s.charAt(i) == '=') ++i;
      if (i < s.length() && s.charAt(i) == '[') {
        String m = s.substring(1, i);
        if (s.endsWith("]" + m + "]"))
          return s.substring(i+1, s.length()-i-1);
      }
    }
    
    if (s.startsWith("\"") /*&& s.endsWith("\"")*/ && s.length() > 1) {
      int l = s.endsWith("\"") ? s.length()-1 : s.length();
      StringBuilder sb = new StringBuilder(l-1);
  
      for (int i = 1; i < l; i++) {
        char ch = s.charAt(i);
        if (ch == '\\') {
          char nextChar = (i == l - 1) ? '\\' : s.charAt(i + 1);
          // Octal escape?
          if (nextChar >= '0' && nextChar <= '7') {
              String code = "" + nextChar;
              i++;
              if ((i < l - 1) && s.charAt(i + 1) >= '0'
                      && s.charAt(i + 1) <= '7') {
                  code += s.charAt(i + 1);
                  i++;
                  if ((i < l - 1) && s.charAt(i + 1) >= '0'
                          && s.charAt(i + 1) <= '7') {
                      code += s.charAt(i + 1);
                      i++;
                  }
              }
              sb.append((char) Integer.parseInt(code, 8));
              continue;
          }
          switch (nextChar) {
          case '\\':
              ch = '\\';
              break;
          case 'b':
              ch = '\b';
              break;
          case 'f':
              ch = '\f';
              break;
          case 'n':
              ch = '\n';
              break;
          case 'r':
              ch = '\r';
              break;
          case 't':
              ch = '\t';
              break;
          case '\"':
              ch = '\"';
              break;
          case '\'':
              ch = '\'';
              break;
          // Hex Unicode: u????
          case 'u':
              if (i >= l - 5) {
                  ch = 'u';
                  break;
              }
              int code = Integer.parseInt(
                      "" + s.charAt(i + 2) + s.charAt(i + 3)
                         + s.charAt(i + 4) + s.charAt(i + 5), 16);
              sb.append(Character.toChars(code));
              i += 5;
              continue;
          default:
            ch = nextChar; // added by Stefan
          }
          i++;
        }
        sb.append(ch);
      }
      return sb.toString();   
    }
    
    return s; // not quoted - return original
  }
static void setOptAll(Object o, Map<String, Object> fields) {
  if (fields == null) return;
  for (String field : keys(fields))
    setOpt(o, field, fields.get(field));
}

static void setOptAll(Object o, Object... values) {
  //values = expandParams(c.getClass(), values);
  warnIfOddCount(values);
  for (int i = 0; i+1 < l(values); i += 2) {
    String field = (String) values[i];
    Object value = values[i+1];
    setOpt(o, field, value);
  }
}
static char unquoteCharacter(String s) {
  assertTrue(s.startsWith("'") && s.length() > 1);
  return unquote("\"" + s.substring(1, s.endsWith("'") ? s.length()-1 : s.length()) + "\"").charAt(0);
}
static int parseInt(String s) {
  return empty(s) ? 0 : Integer.parseInt(s);
}
static <A> A nuStubInnerObject(Class<A> c) { try {
 
  Class outerType = getOuterClass(c);
  Constructor m = c.getDeclaredConstructor(outerType);
  m.setAccessible(true);
  return (A) m.newInstance(new Object[] {null});

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static void printIndent(Object o) {
  print(indentx(str(o)));
}

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

static void printIndent(int indent, Object o) {
  print(indentx(indent, str(o)));
}
static boolean[] boolArrayFromBytes(byte[] a, int n) {
  boolean[] b = new boolean[n];
  int m = min(n, l(a)*8);
  for (int i = 0; i < m; i++)
    b[i] = (a[i/8] & 1 << (i & 7)) != 0;
  return b;
}
static Object getBot(String botID) {
  return callOpt(getMainBot(), "getBot", botID);
}

static byte[] boolArrayToBytes(boolean[] a) {
  byte[] b = new byte[(l(a)+7)/8];
  for (int i = 0; i < l(a); i++)
    if (a[i])
      b[i/8] |= 1 << (i & 7);
  return b;
}
static JMenuItem jmenuItem(String text, final Runnable r) {
  JMenuItem mi = new JMenuItem(text);
  mi.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { r.run(); }});
  return mi;
}
static TableWithTooltips tableWithToolTips() {
  return tableWithTooltips();
}

static String className(Object o) {
  return getClassName(o);
}
static void assertTrue(Object o) {
  assertEquals(true, o);
}
  
static boolean assertTrue(String msg, boolean b) {
  if (!b)
    throw fail(msg);
  return b;
}

static boolean assertTrue(boolean b) {
  if (!b)
    throw fail("oops");
  return b;
}
static boolean isLongConstant(String s) {
  if (!s.endsWith("L")) return false;
  s = s.substring(0, l(s)-1);
  return isInteger(s);
}
static boolean endsWithLetter(String s) {
  return nempty(s) && isLetter(last(s));
}
static String internIfLongerThan(String s, int l) {
  return s == null ? null : l(s) >= l ? s.intern() : s;
}
static void pcallOpt_noArgs(Object o, String method) {
  try { /* pcall 1*/  callOpt_noArgs(o, method); /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
}
static boolean sameSnippetID(String a, String b) {
  return a != null && b != null && parseSnippetID(a) == parseSnippetID(b);
}
// works on lists and strings and null

static int indexOfIgnoreCase(Object a, Object b) {
  if (a == null) return -1;
  if (a instanceof String) {
     Matcher m = Pattern.compile((String) b, Pattern.CASE_INSENSITIVE + Pattern.LITERAL).matcher((String) a);
     if (m.find()) return m.start(); else return -1;
  }
  if (a instanceof List) {
    for (int i = 0; i < ((List) a).size(); i++) {
      Object o = ((List) a).get(i);
      if (o != null && ((String) o).equalsIgnoreCase((String) b))
        return i;
    }
    return -1;
  }
  throw fail("Unknown type: " + a);
}
static Class<?> getClass(String name) {
  try {
    return Class.forName(name);
  } catch (ClassNotFoundException e) {
    return null;
  }
}

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

static Class getClass(Object realm, String name) { try {
 
  try {
    return getClass(realm).getClassLoader().loadClass(classNameToVM(name));
  } catch (ClassNotFoundException e) {
    return null;
  }

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static int[] toIntArray(List<Integer> l) {
  int[] a = new int[l(l)];
  for (int i = 0; i < a.length; i++)
    a[i] = l.get(i);
  return a;
}
static void printStructure(String prefix, Object o) {
  if (endsWithLetter(prefix)) prefix += ": ";
  print(prefix + structure(o));
}

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

static boolean eqOneOf(Object o, Object... l) {
  for (Object x : l) if (eq(o, x)) return true; return false;
}
static class tablePopupMenu_Maker {
  List menuMakers = new ArrayList();
}

static Map<JTable, tablePopupMenu_Maker> tablePopupMenu_map = new WeakHashMap();

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

// menuMaker = voidfunc(JPopupMenu, int row)
static void tablePopupMenu(final JTable table, final Object menuMaker) {
  swingNowOrLater(new Runnable() { public void run() { try { 
    tablePopupMenu_Maker maker = tablePopupMenu_map.get(table);
    if (maker == null) {
      tablePopupMenu_map.put(table, maker = new tablePopupMenu_Maker());
      final tablePopupMenu_Maker _maker = maker;
      table.addMouseListener(new MouseAdapter() {
        public void mousePressed(MouseEvent e) { displayMenu(e); }
        public void mouseReleased(MouseEvent e) { displayMenu(e); }
      
        void displayMenu(MouseEvent e) {
          if (e.isPopupTrigger()) {
            JPopupMenu menu = new JPopupMenu();
            int row = table.rowAtPoint(e.getPoint());
            table.setRowSelectionInterval(row, row);
            int emptyCount = menu.getComponentCount();
            
            tablePopupMenu_mouseEvent.set(e);
            for (Object menuMaker : _maker.menuMakers)
              pcallF(menuMaker, menu, row);
            
            // show menu if any items in it
            if (menu.getComponentCount() != emptyCount)
              menu.show(e.getComponent(), e.getX(), e.getY());
          }
        }
      });
    }
    maker.menuMakers.add(menuMaker);
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "tablePopupMenu_Maker maker = tablePopupMenu_map.get(table);\n    if (maker == null) {\n      tablePopupMenu_map.put(table, maker = new tablePopupMenu_Maker());\n      final tablePopupMenu_Maker _maker = maker;\n      table.addMouseListener(new MouseAdapter() {\n        public void mousePressed(MouseEvent e) { displayMenu(e); }\n        public void mouseReleased(MouseEvent e) { displayMenu(e); }\n      \n        void displayMenu(MouseEvent e) {\n          if (e.isPopupTrigger()) {\n            JPopupMenu menu = new JPopupMenu();\n            int row = table.rowAtPoint(e.getPoint());\n            table.setRowSelectionInterval(row, row);\n            int emptyCount = menu.getComponentCount();\n            \n            tablePopupMenu_mouseEvent.set(e);\n            for (Object menuMaker : _maker.menuMakers)\n              pcallF(menuMaker, menu, row);\n            \n            // show menu if any items in it\n            if (menu.getComponentCount() != emptyCount)\n              menu.show(e.getComponent(), e.getX(), e.getY());\n          }\n        }\n      });\n    }\n    maker.menuMakers.add(menuMaker);"; }});
}
static Map synchroMap() {
  return synchroHashMap();
}

static <A, B> Map<A, B> synchroMap(Map<A, B> map) {
  return Collections.synchronizedMap(map);
}
static File javaxDataDir_dir; // can be set to work on different base dir

static File javaxDataDir() {
  return javaxDataDir_dir != null ? javaxDataDir_dir : new File(userHome(), "JavaX-Data");
}
static double parseDouble(String s) {
  return Double.parseDouble(s);
}
static ImageIcon imageIcon(String imageID) { try {
 
  return new ImageIcon(loadBinarySnippet(imageID).toURI().toURL());

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

static ImageIcon imageIcon(BufferedImage img) {
  return new ImageIcon(img);
}
static <A> A or(A a, A b) {
  return a != null ? a : b;
}
static String fromUtf8(byte[] bytes) { try {
 
  return new String(bytes, "UTF-8");

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

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



static List<String> getPlural_specials = ll("sheep", "fish");

static String getPlural(String s) {
  if (containsIgnoreCase(getPlural_specials, s)) return s;
  if (ewic(s, "y")) return dropSuffixIgnoreCase("y", s) + "ies";
  if (ewic(s, "ss")) return s + "es";
  if (ewic(s, "s")) return s;
  return s + "s";
}
static Map<String, String> singular_specials = litmap(
  "children", "child", "images", "image", "chess", "chess");
  
static Set<String> singular_specials2 = litset("time");

static String singular(String s) {
  if (s == null) return null;
  s = toLower(s);
  { String _a_1 = singular_specials.get(s); if (!empty(_a_1)) return _a_1; }
  if (singular_specials2.contains(dropSuffix("s", s)))
    return dropSuffix("s", s);
  if (s.endsWith("ness")) return s;
  if (s.endsWith("ges")) return dropSuffix("s", s);
  s = dropSuffix("es", s);
  s = dropSuffix("s", s);
  return s;
}
static File loadBinarySnippet(String snippetID) { try {
 
  long id = parseSnippetID(snippetID);
  File f = DiskSnippetCache_getLibrary(id);
  if (f == null) {
    byte[] data = loadDataSnippetImpl(snippetID);
    DiskSnippetCache_putLibrary(id, data);
    f = DiskSnippetCache_getLibrary(id);
  }
  return f;

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static void showConsole() {
  JFrame frame = consoleFrame();
  if (frame != null)
    frame.setVisible(true);
}
static Object mainBot;

static Object getMainBot() {
  return mainBot;
}
static int min(int a, int b) {
  return Math.min(a, b);
}

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

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

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

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

static byte min(byte[] c) {
  byte x = 127;
  for (byte d : c) if (d < x) x = d;
  return x;
}
// menuMaker = voidfunc(JPopupMenu)
static void titlePopupMenu(final JFrame frame, final Object menuMaker) {
  swingNowOrLater(new Runnable() { public void run() { try { 
    if (!isSubstanceLAF())
      print("Can't add title right click!");
    else {
      JComponent titleBar = getTitlePaneComponent(frame);
      componentPopupMenu(titleBar, menuMaker);
    }
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "if (!isSubstanceLAF())\n      print(\"Can't add title right click!\");\n    else {\n      JComponent titleBar = getTitlePaneComponent(frame);\n      componentPopupMenu(titleBar, menuMaker);\n    }"; }});
}
static Class __javax;

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

static boolean hasField(Object o, String field) {
  return findField2(o, field) != null;
}
static Class<?> _getClass(String name) {
  try {
    return Class.forName(name);
  } catch (ClassNotFoundException e) {
    return null;
  }
}

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

static Class _getClass(Object realm, String name) { try {
 
  return getClass(realm).getClassLoader().loadClass(classNameToVM(name));

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static String indentx(String s) {
  return indentx(indent_default, s);
}

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

static String indentx(String indent, String s) {
  return dropSuffix(indent, indent(indent, s));
}
static <A> A last(List<A> l) {
  return l.isEmpty() ? null : l.get(l.size()-1);
}

static char last(String s) {
  return empty(s) ? '#' : s.charAt(l(s)-1);
}
static String classNameToVM(String name) {
  return name.replace(".", "$");
}
static int systemHashCode(Object o) {
  return identityHashCode(o);
}
static TableWithTooltips tableWithTooltips() {
  return new TableWithTooltips();
}

static class TableWithTooltips extends JTable {
  public String getToolTipText(MouseEvent e) {
    String tip = null;
    Point p = e.getPoint();
    int rowIndex = rowAtPoint(p);
    int colIndex = columnAtPoint(p);

    try {
      return str(getValueAt(rowIndex, colIndex));
    } catch (Throwable _e) {
      return null;
    }
  }
}
static void revalidate(Component c) {
  if (c == null || !c.isShowing()) return;
  // magic combo to actually relayout and repaint
  c.revalidate();
  c.repaint();
}
static Map synchroHashMap() {
  return Collections.synchronizedMap(new HashMap());
}

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

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static boolean isSubstanceLAF() {
  return substanceLookAndFeelEnabled();
}
static JFrame setFrameTitle(Component c, String title) {
  JFrame f = getFrame(c);
  if (f == null)
    showFrame(title, c);
  else
    f.setTitle(title);
  return f;
}

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

// magically find a field called "frame" in main class :-)
static JFrame setFrameTitle(String title) {
  Object f = getOpt(mc(), "frame");
  if (f instanceof JFrame)
    return setFrameTitle((JFrame) f, title);
  return null;
}
static String _userHome;
static String userHome() {
  if (_userHome == null) {
    if (isAndroid())
      _userHome = "/storage/sdcard0/";
    else
      _userHome = System.getProperty("user.home");
    //System.out.println("userHome: " + _userHome);
  }
  return _userHome;
}

static File userHome(String path) {
  return new File(userDir(), path);
}
static void restart() {
  Object j = getJavaX();
  call(j, "cleanRestart", get(j, "fullArgs"));
}
static int max(int a, int b) {
  return Math.max(a, b);
}

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

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

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

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

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

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

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

static byte max(byte[] c) {
  byte x = -128;
  for (byte d : c) if (d > x) x = d;
  return x;
}
static String programTitle() {
  return getProgramName();
}
static Object pcallF(Object f, Object... args) {
  return pcallFunction(f, args);
}
static boolean booleanValue(Object o) {
  return eq(true, o);
}
static JFrame getFrame(Object o) {
  if (!(o instanceof Component)) return null;
  Component c = (Component) o;
  while (c != null) {
    if (c instanceof JFrame) return (JFrame) c;
    c = c.getParent();
  }
  return null;
}
static boolean isLetter(char c) {
  return Character.isLetter(c);
}
public static long parseSnippetID(String snippetID) {
  long id = Long.parseLong(shortenSnippetID(snippetID));
  if (id == 0) throw fail("0 is not a snippet ID");
  return id;
}
  static String repeat(char c, int n) {
    n = max(n, 0);
    char[] chars = new char[n];
    for (int i = 0; i < n; i++)
      chars[i] = c;
    return new String(chars);
  }

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

static int parseHexByte(String s) {
  return Integer.parseInt(s, 16);
}


static String shortenSnippetID(String snippetID) {
  if (snippetID.startsWith("#"))
    snippetID = snippetID.substring(1);
  String httpBlaBla = "http://tinybrain.de/";
  if (snippetID.startsWith(httpBlaBla))
    snippetID = snippetID.substring(httpBlaBla.length());
  return "" + parseLong(snippetID);
}
static <A> HashSet<A> litset(A... items) {
  return lithashset(items);
}
static JComponent getTitlePaneComponent(Window window) {
  if (!substanceLookAndFeelEnabled()) return null;
  
	JRootPane rootPane = null;
	if (window instanceof JFrame) {
		JFrame f = (JFrame) window;
		rootPane = f.getRootPane();
	}
	if (window instanceof JDialog) {
		JDialog d = (JDialog) window;
		rootPane = d.getRootPane();
	}
	if (rootPane != null) {
		Object /*SubstanceRootPaneUI*/ ui = rootPane.getUI();
		return (JComponent) call(ui, "getTitlePane");
	}
	return null;
}

static String dropSuffixIgnoreCase(String suffix, String s) {
  return ewic(s, suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
  
  // Data files are immutable, use centralized cache
public static File DiskSnippetCache_getLibrary(long snippetID) throws IOException {
  File file = new File(getGlobalCache(), "data_" + snippetID + ".jar");
  return file.exists() ? file : null;
}

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

static byte[] loadDataSnippetImpl(String snippetID) throws IOException {
  byte[] data;
  try {
    URL url = new URL("http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_"
      + parseSnippetID(snippetID) + "&contentType=application/binary");
    System.err.println("Loading library: " + url);
    try {
      data = loadBinaryPage(url.openConnection());
    } catch (RuntimeException e) {
      data = null;
    }
    
    if (data == null || data.length == 0) {
      url = new URL("http://data.tinybrain.de/blobs/"
        + parseSnippetID(snippetID));
      System.err.println("Loading library: " + url);
      data = loadBinaryPage(url.openConnection());
    }
    System.err.println("Bytes loaded: " + data.length);
  } catch (FileNotFoundException e) {
    throw new IOException("Binary snippet #" + snippetID + " not found or not public");
  }
  return data;
}
static class componentPopupMenu_Maker {
  List menuMakers = new ArrayList();
}

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

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

// menuMaker = voidfunc(JPopupMenu)
static void componentPopupMenu(final JComponent component, final Object menuMaker) {
  swingNowOrLater(new Runnable() { public void run() { try { 
    componentPopupMenu_Maker maker = componentPopupMenu_map.get(component);
    if (maker == null) {
      componentPopupMenu_map.put(component, maker = new componentPopupMenu_Maker());
      final componentPopupMenu_Maker _maker = maker;
      component.addMouseListener(new MouseAdapter() {
        public void mousePressed(MouseEvent e) { displayMenu(e); }
        public void mouseReleased(MouseEvent e) { displayMenu(e); }
      
        void displayMenu(MouseEvent e) {
          if (e.isPopupTrigger()) {
            JPopupMenu menu = new JPopupMenu();
            int emptyCount = menu.getComponentCount();
            
            componentPopupMenu_mouseEvent.set(e);
            for (Object menuMaker : _maker.menuMakers)
              pcallF(menuMaker, menu);
            
            // show menu if any items in it
            if (menu.getComponentCount() != emptyCount)
              menu.show(e.getComponent(), e.getX(), e.getY());
          }
        }
      });
    }
    maker.menuMakers.add(menuMaker);
  
} catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } }  public String toString() { return "componentPopupMenu_Maker maker = componentPopupMenu_map.get(component);\n    if (maker == null) {\n      componentPopupMenu_map.put(component, maker = new componentPopupMenu_Maker());\n      final componentPopupMenu_Maker _maker = maker;\n      component.addMouseListener(new MouseAdapter() {\n        public void mousePressed(MouseEvent e) { displayMenu(e); }\n        public void mouseReleased(MouseEvent e) { displayMenu(e); }\n      \n        void displayMenu(MouseEvent e) {\n          if (e.isPopupTrigger()) {\n            JPopupMenu menu = new JPopupMenu();\n            int emptyCount = menu.getComponentCount();\n            \n            componentPopupMenu_mouseEvent.set(e);\n            for (Object menuMaker : _maker.menuMakers)\n              pcallF(menuMaker, menu);\n            \n            // show menu if any items in it\n            if (menu.getComponentCount() != emptyCount)\n              menu.show(e.getComponent(), e.getX(), e.getY());\n          }\n        }\n      });\n    }\n    maker.menuMakers.add(menuMaker);"; }});
}
static Field findField2(Object o, String field) {
  if (o instanceof Class) return findField2_findStaticField((Class) o, field);
  return findField2_findField(o.getClass(), field);
}

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

static Field findField2_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static JFrame consoleFrame() {
  return (JFrame) getOpt(get(getJavaX(), "console"), "frame");
}
static int identityHashCode(Object o) {
  return System.identityHashCode(o);
}
static boolean substanceLookAndFeelEnabled() {
  return startsWith(getLookAndFeel(), "org.pushingpixels.");
}
static boolean ewic(String a, String b) {
  return endsWithIgnoreCase(a, b);
}
static String toLower(String s) {
  return s == null ? null : s.toLowerCase();
}

static char toLower(char c) {
  return Character.toLowerCase(c);
}
static Object pcallFunction(Object f, Object... args) {
  try { /* pcall 1*/  return callFunction(f, args); /* pcall 2 */ } catch (Throwable __e) { printStackTrace(__e); }
  return null;
}
static int indent_default = 2;

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

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

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

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

static List<String> indent(String indent, List<String> lines) {
  List<String> l = new ArrayList<String>();
  for (String s : lines)
    l.add(indent + s);
  return l;
}
static String getProgramName_cache;

static synchronized String getProgramName() {
  if (getProgramName_cache == null)
    getProgramName_cache = getSnippetTitle(getProgramID());
  return getProgramName_cache;
}
static File userDir() {
  return new File(userHome());
}

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


static File getGlobalCache() {
  File file = new File(userHome(), ".tinybrain/snippet-cache");
  file.mkdirs();
  return file;
}

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

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

  static void saveBinaryFile(File fileName, byte[] contents) {
    try {
      saveBinaryFile(fileName.getPath(), contents);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
static boolean endsWithIgnoreCase(String a, String b) {
  return a != null && l(a) >= l(b) && a.regionMatches(true, l(a)-l(b), b, 0, l(b));
}
static String getSnippetTitle(String id) { try {
 
  if (!isSnippetID(id)) return "?";
  return trim(loadPageSilently(new URL("http://tinybrain.de:8080/tb-int/getfield.php?id=" + parseSnippetID(id) + "&field=title" + standardCredentials())));

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static String getLookAndFeel() {
  return getClassName(UIManager.getLookAndFeel());
}
static byte[] loadBinaryPage(String url) { try {
 
  return loadBinaryPage(new URL(url).openConnection());

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

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

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

static byte[] loadBinaryPage_noHeaders(URLConnection con) { try {
 
  setHeaders(con);
  ByteArrayOutputStream buf = new ByteArrayOutputStream();
  InputStream inputStream = con.getInputStream();
  int n = 0;
  while (true) {
    int ch = inputStream.read();
    if (ch < 0)
      break;
    buf.write(ch);
    if (++n % 100000 == 0)
      System.err.println("  " + n + " bytes loaded.");
  }
  inputStream.close();
  return buf.toByteArray();

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

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

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


static String trim(String s) { return s == null ? null : s.trim(); }
static String trim(StringBuilder buf) { return buf.toString().trim(); }
static String trim(StringBuffer buf) { return buf.toString().trim(); }
static String standardCredentials() {
  String user = standardCredentialsUser();
  String pass = trim(loadTextFile(new File(userHome(), ".tinybrain/userpass")));
  if (nempty(user) && nempty(pass))
    return "&_user=" + urlencode(user) + "&_pass=" + urlencode(pass);
  return "";
}
static void setHeaders(URLConnection con) throws IOException {
  String computerID = getComputerID();
  if (computerID != null) try {
    con.setRequestProperty("X-ComputerID", computerID);
    con.setRequestProperty("X-OS", System.getProperty("os.name") + " " + System.getProperty("os.version"));
  } catch (Throwable e) {
    //printShortException(e);
  }
}
  public static boolean isSnippetID(String s) {
    try {
      parseSnippetID(s);
      return true;
    } catch (RuntimeException e) {
      return false;
    }
  }
  static ThreadLocal<String> loadPage_charset = new ThreadLocal<String>();
  static boolean loadPage_allowGzip = true, loadPage_debug;
  static boolean loadPage_anonymous; // don't send computer ID
  static int loadPage_verboseness = 100000;
  static int loadPage_retries = 60; // seconds

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

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

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

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



static String hideCredentials(String url) {
  return url.replaceAll("&_pass=[^&]*", "&_pass=<hidden>");
}
static String exceptionToStringShort(Throwable e) {
  e = getInnerException(e);
  String msg = unnull(e.getMessage());
  if (msg.indexOf("Error") < 0 && msg.indexOf("Exception") < 0)
    return baseClassName(e) + ": " + msg;
  else
    return msg;
}
static URLConnection openConnection(URL url) { try {
 
  ping();
  return url.openConnection();

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static String urlencode(String x) {
  try {
    return URLEncoder.encode(unnull(x), "UTF-8");
  } catch (UnsupportedEncodingException e) { throw new RuntimeException(e); }
}
static String standardCredentialsUser() {
  return trim(loadTextFile(new File(userHome(), ".tinybrain/username")));
}
static String getComputerID() { try {
 
  return computerID();

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static final boolean loadPageThroughProxy_enabled = false;

static String loadPageThroughProxy(String url) {
  return null;
}
static void sleepSeconds(double s) {
  if (s > 0) sleep(round(s*1000));
}


static Throwable getInnerException(Throwable e) {
  while (e.getCause() != null)
    e = e.getCause();
  return e;
}
static String _computerID;
public static String computerID() { try {
 
  if (_computerID == null) {
    File file = new File(userHome(), ".tinybrain/computer-id");
    _computerID = loadTextFile(file.getPath(), null);
    if (_computerID == null) {
      _computerID = makeRandomID(12);
      saveTextFile(file.getPath(), _computerID);
    }
  }
  return _computerID;

} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static String baseClassName(String className) {
  return substring(className, className.lastIndexOf('.')+1);
}

static String baseClassName(Object o) {
  return baseClassName(getClassName(o));
}
static long round(double d) {
  return Math.round(d);
}


static String makeRandomID(int length) {
  Random random = new Random();
  char[] id = new char[length];
  for (int i = 0; i < id.length; i++)
    id[i] = (char) ((int) 'a' + random.nextInt(26));
  return new String(id);
}


static class Str extends Concept {
  String name;
  List<String> otherNames = new ArrayList<String>();
  
  Str() {}
  Str(String name) {
  this.name = name;}
  
  public String toString() { return name; }
}

static class Rect {
  int x, y, w, h;
  
  Rect() {}
  Rect(Rectangle r) {
    x = r.x;
    y = r.y;
    w = r.width;
    h = r.height;
  }
  Rect(int x, int y, int w, int h) {
  this.h = h;
  this.w = w;
  this.y = y;
  this.x = x;}
  
  Rectangle getRectangle() {
    return new Rectangle(x, y, w, h);
  }
  
  public boolean equals(Object o) { return stdEq2(this, o); }
public int hashCode() { return stdHash2(this); }
  
  public String toString() {
    return x + "," + y + " / " + w + "," + h;
  }
  
  int x2() { return x + w; }
  int y2() { return y + h; }
  
  boolean contains(Pt p) {
    return p.x >= x && p.y >= y && p.x < x+w && p.y < y+h;
  }
}

static boolean DynamicObject_loading;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  public int getWidth() {
    return width;
  }

  public int getHeight() {
    return height;
  }

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

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

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

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

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

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

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

  public float getBorderColor() {
    return borderColor;
  }

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

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

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

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

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

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

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

static class MultiMap<A,B> {
  Map<A, List<B>> data = new HashMap<A, List<B>>();
  
  MultiMap() {}
  MultiMap(boolean useTreeMap) { if (useTreeMap) data = new TreeMap(); }
  MultiMap(MultiMap<A, B> map) { putAll(map); }

  synchronized void put(A key, B value) {
    List<B> list = data.get(key);
    if (list == null)
      data.put(key, list = new ArrayList<B>());
    list.add(value);
  }

  synchronized void addAll(A key, Collection<B> values) {
    putAll(key, values);
  }
  
  synchronized void addAllIfNotThere(A key, Collection<B> values) {
    for (B value : values)
      setPut(key, value);
  }
  
  synchronized void setPut(A key, B value) {
    if (!containsPair(key, value))
      put(key, value);
  }
  
  synchronized boolean containsPair(A key, B value) {
    return get(key).contains(value);
  }
  
  synchronized void putAll(A key, Collection<B> values) {
    for (B value : values)
      put(key, value);
  }

  synchronized void removeAll(A key, Collection<B> values) {
    for (B value : values)
      remove(key, value);
  }
  
  synchronized List<B> get(A key) {
    List<B> list = data.get(key);
    return list == null ? Collections.<B> emptyList() : list;
  }

  // returns actual mutable live list
  // creates the list if not there
  synchronized List<B> getActual(A key) {
    List<B> list = data.get(key);
    if (list == null)
      data.put(key, list = litlist());
    return list;
  }
 
  synchronized void clean(A key) {
    List<B> list = data.get(key);
    if (list != null && list.isEmpty())
      data.remove(key);
  }

  synchronized Set<A> keySet() {
    return data.keySet();
  }

  synchronized Set<A> keys() {
    return data.keySet();
  }

  synchronized void remove(A key) {
    data.remove(key);
  }

  synchronized void remove(A key, B value) {
    List<B> list = data.get(key);
    if (list != null) {
      list.remove(value);
      if (list.isEmpty())
        data.remove(key);
    }
  }

  synchronized void clear() {
    data.clear();
  }

  synchronized boolean containsKey(A key) {
    return data.containsKey(key);
  }

  synchronized B getFirst(A key) {
    List<B> list = get(key);
    return list.isEmpty() ? null : list.get(0);
  }
  
  synchronized void putAll(MultiMap<A, B> map) {
    for (A key : map.keySet())
      putAll(key, map.get(key));
  }
  
  // note: expensive operation
  synchronized int size() {
    int n = 0;
    for (List l : data.values())
      n += l(l);
    return n;
  }
  
  // expensive operation
  synchronized List<A> reverseGet(B b) {
    List<A> l = new ArrayList<A>();
    for (A key : data.keySet())
      if (data.get(key).contains(b))
        l.add(key);
    return l;
  }
  
  synchronized Map<A, List<B>> asMap() {
    return cloneMap(data);
  }
  
  boolean isEmpty() { return data.isEmpty(); }
}

static class RGB {
  public final float r, g, b;

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

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

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

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

  public RGB(String hex) {
    r = Integer.parseInt(hex.substring(0, 2), 16)/255f;
    g = Integer.parseInt(hex.substring(2, 4), 16)/255f;
    b = Integer.parseInt(hex.substring(4, 6), 16)/255f;
  }

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

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

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

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

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

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

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

    RGB rgb = (RGB) o;

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

    return true;
  }

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

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

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

  public String toString() {
    return getHexString();
  }
}

static class RGBImage {
  transient BufferedImage bufferedImage;
  File file;
  int width, height;
  int[] pixels;

  // color returned when getPixel is called with out-of-bounds position
  int background = 0xFFFFFF;
  
  RGBImage() {}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  public int getWidth() {
    return width;
  }

  public int getHeight() {
    return height;
  }

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

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

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

  public File getFile() {
    return file;
  }

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

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

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

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

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

  public int[] getPixels() {
    return pixels;
  }

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

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

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

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

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

  public int getBackground() {
    return background;
  }

  public void setBackground(int background) {
    this.background = background;
  }

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

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

    RGBImage rgbImage = (RGBImage) o;

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

    return true;
  }

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

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

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

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

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



static void swingLater(long delay, final Runnable r) {
  javax.swing.Timer timer = new javax.swing.Timer(toInt(delay), new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) {
    r.run();
  }});
  timer.setRepeats(false);
  timer.start();
}

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

static void swingNowOrLater(Runnable r) {
  if (isAWTThread())
    r.run();
  else
    swingLater(r);
}
static boolean inRange(int x, int n) {
  return x >= 0 && x < n;
}
static int asInt(Object o) {
  return toInt(o);
}


static int toInt(Object o) {
  if (o == null) return 0;
  if (o instanceof Number)
    return ((Number) o).intValue();
  if (o instanceof String)
    return parseInt((String) o);
  throw fail("woot not int: " + getClassName(o));
}

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


static class Pt {
  int x, y;
  
  Pt() {}
  Pt(Point p) {
    x = p.x;
    y = p.y;
  }
  Pt(int x, int y) {
  this.y = y;
  this.x = x;}
  
  Point getPoint() {
    return new Point(x, y);
  }
  
  public boolean equals(Object o) { return stdEq2(this, o); }
public int hashCode() { return stdHash2(this); }
  
  public String toString() {
    return x + ", " + y;
  }
}

static boolean stdEq2(Object a, Object b) {
  if (a == null) return b == null;
  if (b == null) return false;
  if (a.getClass() != b.getClass()) return false;
  for (String field : allFields(a))
    if (neq(getOpt(a, field), getOpt(b, field)))
      return false;
  return true;
}
static int stdHash2(Object a) {
  if (a == null) return 0;
  return stdHash(a, toStringArray(allFields(a)));
}


static Set<String> allFields(Object o) {
  TreeSet<String> fields = new TreeSet<String>();
  Class _c = _getClass(o);
  do {
    for (Field f : _c.getDeclaredFields())
      fields.add(f.getName());
    _c = _c.getSuperclass();
  } while (_c != null);
  return fields;
}
static int stdHash(Object a, String... fields) {
  if (a == null) return 0;
  int hash = getClassName(a).hashCode();
  for (String field : fields)
    hash = hash*2+hashCode(getOpt(a, field));
  return hash;
}


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

}