elements function no longer supported

(testcmp "elements l 0" '(elements ()) nil)

(testcmp "elements l 1" '(elements '(123)) '(123))

(testcmp "elements l n" '(elements '(123 456 789)) '(123 456 789))

(testcmp "elements s 0" '(elements "") nil)

(testcmp "elements s 1" '(elements "d") '(?d))

(testcmp "elements s n" '(elements "Da geht die Sau durch den Knick!")

         '(?D ?a ?\Space ?g ?e ?h ?t ?\Space ?d ?i ?e ?\Space ?S ?a ?u

           ?\Space ?d ?u ?r ?c ?h ?\Space ?d ?e ?n ?\Space ?K ?n ?i ?c ?k ?!))

(testcmp "elements s u" '(elements "Ärgörnüß") '(?Ä ?r ?g ?ö ?r ?n ?ü ?ß))

(testcmp "elements v 0" '(elements []) nil)

(testcmp "elements v 1" '(elements [123]) '(123))

(testcmp "elements v n" '(elements [123 456 789]) '(123 456 789))