code: private void appendIndentation() {
  
          if (m_lineLength <= m_indent) {
              int len = (m_marker != null) ? m_indent - (m_marker.length() + 1) : m_indent;
              for (int i = 0; i < len; i++) {
                  m_result.append(' ');
              }
              if (m_marker != null) {
                  m_result.append(m_marker);
                  m_result.append(' ');
                  m_marker = null;
              }
          }
      }
docs: Appends an indentation.<p>