code: protected boolean escapingNotNeeded(char ch)
      {
          final boolean ret;
          if (ch < 127)
          {
              // This is the old/fast code here, but is this 
              // correct for all encodings?
              if (ch >= CharInfo.S_SPACE || (CharInfo.S_LINEFEED == ch || 
                      CharInfo.S_CARRIAGERETURN == ch || CharInfo.S_HORIZONAL_TAB == ch))
                  ret= true;
              else
                  ret = false;
          }
          else {            
              ret = m_encodingInfo.isInEncoding(ch);
          }
          return ret;
      }
docs: Tell if this character can be written without escaping.