code: @Test public void testTextEncodation(){
    String visualized=encodeHighLevel("aimaimaim");
    assertEquals("239 91 11 91 11 91 11 254",visualized);
    visualized=encodeHighLevel("aimaimaim'");
    assertEquals("239 91 11 91 11 91 11 254 40 129",visualized);
    visualized=encodeHighLevel("aimaimaIm");
    assertEquals("239 91 11 91 11 87 218 110",visualized);
    visualized=encodeHighLevel("aimaimaimB");
    assertEquals("239 91 11 91 11 91 11 254 67 129",visualized);
    visualized=encodeHighLevel("aimaimaim{txt}\u0004");
    assertEquals("239 91 11 91 11 91 11 16 218 236 107 181 69 254 129 237",visualized);
  }
  