--- a/UniqueString.cpp	Wed Sep 05 21:56:06 2012 +0200
+++ b/UniqueString.cpp	Wed Sep 05 21:56:45 2012 +0200
@@ -1,4 +1,10 @@
 #include "UniqueString.hpp"
 
 //QMap<QString, QString> UniqueString::map;
+
+/*
 RBTree<QString> UniqueString::map;
+
+QMap<QString, int> UniqueString::lup;
+uint UniqueString::numInserts;
+*/

--- a/UniqueString.hpp	Wed Sep 05 21:56:06 2012 +0200
+++ b/UniqueString.hpp	Wed Sep 05 21:56:45 2012 +0200
@@ -19,29 +19,69 @@
     QString::operator=(map.value(str)); 
   }
 };
-#else
+#elseif 0
 #include "RBTree.hpp"
 #include <QtCore/QString>
+#include <QtCore/QStringList>
 #include <QtCore/QDebug>
 
-class UniqueString : public QString
+class UniqueString
 {
 private:
   static RBTree<QString> map;
+  QString myString;
+  static QMap<QString, int> lup;
+  static uint numInserts;
   
 public:
+  QStringList chunk(const QString& str)
+  {
+    QStringList list = str.split("");
+    list << QString();
+    return list;
+  }
+
   UniqueString(const QString& str)
   {
+    //QString str = assemble(in_str);
     boost::optional<QString> present = map.find(str);
     if (!present) {
-      map.insert(str);
-      present = str;
+      QStringList chunks = chunk(str);
+      foreach (const QString& ch, chunks) {
+	++lup[ch];
+      }
+      if (++numInserts % 100 == 0) {
+	foreach(const QString& key, lup.keys()) {
+	  qDebug() << key << ":" << lup[key];
+	}
+      }
+      QString tmpStr = str;
+      tmpStr.squeeze();
+      map.insert(tmpStr);
+      present = tmpStr;
       //qDebug() << map.optimal_depth() << " : " << map.avg_depth() << " : " << map.depth();
     }
-    QString::operator=(*present);
+    myString = *present;
+  }
+
+  operator const QString() const
+  {
+    return myString;
+  }
 
+  bool operator<(const UniqueString& rhs) const
+  {
+    return myString < rhs.myString;
   }
-};
+
+  bool operator==(const UniqueString& rhs) const
+  {
+    return myString == rhs.myString;
+  }
+  };
+#else
+#include "HuffmanString.hpp"
+typedef HuffmanString UniqueString;
 #endif
 
 #endif //UNIQUESTRING_HPP