public static MultilineCommentParser create(String startDelimiter, String endDelimiter) {
    if(startDelimiter == null || endDelimiter == null) return null;
    final String trimmedStart = startDelimiter.trim();
    final String trimmedEnd = endDelimiter.trim();
    if (trimmedStart.length() > 0 && trimmedEnd.length() > 0) {
      return new MultilineCommentParser(trimmedStart, trimmedEnd);
    } else {
      return null;
    }
  }
public static MultilineCommentParser create(String startDelimiter, String endDelimiter)