code: public boolean isEmpty() {
  		return (content.toString().trim().length() == 0)
  				&& (content.toString().indexOf("\n") == -1)
  				&& (attributes == null);
  	}
docs: Checks is this <CODE>Chunk</CODE> is empty.
  
  @return <CODE>false</CODE> if the Chunk contains other characters than
  space.