public static String clearMark(String s) {
		String clear_text = null, href_2;
		for (Matcher m_href = p_wikiparen.matcher(s); m_href.find(); m_href = p_wikiparen
				.matcher(clear_text)) {
			href_2 = m_href.group(3);
			href_2 = href_2 == null ? m_href.group(2) : href_2;
			clear_text = m_href.group(1) + href_2 + m_href.group(4);
		}
		clear_text = clear_text == null ? s : clear_text;
		return clear_text.replaceAll("([" + "\\[\\]\\(\\)「」:：（）\\-〜『』･・/／ 　"
				+ "]|'{2,3})", "");
	}