;; and that STR is modified destructively by concatinating the
;; arguments in the same manner as the previous case. The value is
;; the resulting STR.
LENGTH = '<length>' [ STRTERM | LISTTERM ] '</length>'
NTH = '<nth>' INTTERM [ STRTERM | LISTTERM ] '</nth>'
;; and that STR is modified destructively by concatinating the
;; arguments in the same manner as the previous case. The value is
;; the resulting STR.
LENGTH = '<length>' [ STRTERM | LISTTERM ] '</length>'
NTH = '<nth>' INTTERM [ STRTERM | LISTTERM ] '</nth>'