insert >>-insert(item-+--------+-)------------------------------------>< +-,index-+ Returns a queue-supplied index for [item] , which is added to the queue. The inserted item follows any existing item with index [index] in the queue ordering. If [index] is the Nil object, [item] is inserted at the head of the queue. If you omit [index] , [item] becomes the last item in the queue. Inserting an item in the queue at position [index] will cause the items in the queue after position [index] to have their indexes modified by the queue object. Queue class - insert method musketeers=.queue~of("Porthos","Athos","Aramis) /* Creates queue MUSKETEERS */ /* consisting of: Porthos */ /* Athos */ /* Aramis */ index=musketeers~first /* Gives index of first item */ musketeers~insert("D'Artagnan",index) /* Adds D'Artagnan after Porthos */ /* List is now: Porthos */ /* D'Artagnan */ /* Athos */ /* Aramis */ /* Alternately, you could use */ musketeers~insert("D'Artagnan",.nil) /* Adds D'Artagnan before Porthos */ /* List is now: D'Artagnan */ /* Porthos */ /* Athos */ /* Aramis */ /* Alternately, you could use */ musketeers~insert("D'Artagnan") /* Adds D'Artagnan after Aramis */ /* List is now: Porthos */ /* Athos */ /* Aramis */ /* D'Artagnan */ |