... TWikiAggregateIteratorDotPm . ... new(\@list, $unique) . ... Returns false when the iterator is exhausted. my $it = new TWiki::ListIterator(\@list); while ($it->hasNext()) { .. Return the next entry in the list. The iterator object can be customised to pre- and post-process entries from the list before returning them. ... The entry will be ignored (next() will not return it) if the filter returns false. {process} can be defined to be a sub to process each entry before it is returned by next. ...