==================
Comments
==================

/* Comment
still
*/ UPDATE FILE '' DELETE 1

-- Comment
CREATE FILE 'a--b'
WITH CONTENT '''
/* content */
a --  content --
'''

---

    (source_file
      (comment)
      (update_command
        (singlefile_clause
          (string
            (single_quoted_string)))
        (update_delete_region_clause
          (region_field
            (marker_or_segment
              (marker
                (line_matcher
                  (line_base
                    (number))))))))
      (comment)
      (create_command
        (singlefile_clause
          (string
            (single_quoted_string)))
        (content_literal
          (string
            (multi_line_string)))))
