docs: private int _countCharsStart (final char ch)
    {
      int nCount = 0;
      for (int i = 0; i < m_sValue.length (); i++)
      {
        final char c = m_sValue.charAt (i);
        if (c == ' ')
          continue;
        if (c != ch)
          break;
        nCount++;
      }
      return nCount;
    }