code: public TextTrieMap<V> put(CharSequence text, V val) {
          CharIterator chitr = new CharIterator(text, 0, _ignoreCase);
          _root.add(chitr, val);
          return this;
      }
docs: Adds the text key and its associated object in this object.
  
  @param text The text.
  @param val The value object associated with the text.