Internal Iterators
|
| (map-over f collection) |
-> |
collection |
Maps function over collection. Returns collection.
|
External Iterators
|
| (make-cursor-for collection) |
-> |
cursor |
Creates a cursor for collection; a cursor is a
function which returns an element from a collection each
time it is called, until there are no elements left.
|
| (cursor-next cursor) |
-> |
element, finishedp |
Returns the next element in cursor's
collection. finishedp will be t if
the cursor is finished. If the cursor was already
finished before cursor-next was called, the
value of element will be nil.
|
| (cursor-finished-p cursor) |
-> |
boolean |
Returns t if cursor is finished, nil otherwise.
|
Simple Childed collections
|
| simple-childed-mixin |
|
|
Class representing simple collections, where the
elements of the collection are called "children" of the
collection. Children are accessible only using the
functions provided for manipulating the set of
children. Any given element can appear only once within
a given collection; in order to establish that a new
child is unique, it will be compared with existing
children using eql.
|
| (add-child cursor) |
-> |
boolean |
Returns t if cursor is finished, nil otherwise.
|
| (delete-child cursor) |
-> |
boolean |
Returns t if cursor is finished, nil otherwise.
|
| (delete-child-if cursor) |
-> |
boolean |
Returns t if cursor is finished,
nil otherwise.
|