◊(Local Yarn Code "Diff")

  (format "Re: <a class=\"cross-reference\" href=\"/~a\">~a</a>"
          pagenode
          parent-title))

(define (html$-note-contents disposition-mark elems)
  (define-values (first-tag first-attrs first-elems) (txexpr->values (car elems)))
  (define disposition
    (cond [(non-empty-string? disposition-mark)
           `(span [[class "disposition-mark"]] ,disposition-mark)]
          [else ""]))
  (define body-elems
    (cond
      [(block-txexpr? (car elems))
      [(and (block-txexpr? (car elems)) (non-empty-string? disposition-mark))
       (define-values (first-tag first-attrs first-elems) (txexpr->values (car elems)))
       (cons (txexpr first-tag first-attrs (cons disposition first-elems)) (cdr elems))]
      [else
       (cons disposition elems)]))
  (string-append* (map ->html body-elems)))