mirror stream | [Macro] |
Enumerates a period of items from the item stream stream followed by a strict retrograde of that period. stream may implement any pattern.
Example:
? (setf x (mirror (items a b c d in heap))) #<FUNCTIONAL-ITEM-STREAM 137562641> ? (read-items x 16) (A D B C C B D A D C B A A B C D)
See Also:
repeat, retrograde