docs: public static String extractMulti(String regex, CharSequence content, String template) {
  		if (null == content || null == regex || null == template) {
  			return null;
  		}
  
  		// Pattern pattern = Pattern.compile(regex, Pattern.DOTALL);
  		final Pattern pattern = PatternPool.get(regex, Pattern.DOTALL);
  		return extractMulti(pattern, content, template);
  	}