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Data::Stream::Bulk::Util.3pm
Langue: en
Version: 2010-08-24 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
Sommaire
NAME
Data::Stream::Bulk::Util - Utility functions for Data::Stream::BulkSYNOPSIS
use Data::Stream::Bulk::Util qw(array); use namespace::clean; # Wrap a list in L<Data::Stream::Bulk::Array> return bulk(qw(foo bar gorch baz)); # return an empty resultset return nil();
DESCRIPTION
This module exports convenience functions for use with Data::Stream::Bulk.EXPORTS
Sub::Exporter is used to create the "import" routine, and all of its aliasing/currying goodness is of course supported.nil
Creates a new Data::Stream::Bulk::Nil object.Takes no arguments.
bulk @items
Creates a new Data::Stream::Bulk::Array wrapping @items.cat @streams
Concatenate several streams together.Returns "nil" if no arguments are provided.
filter { ... } $stream
Calls "filter" on $stream with the provided filter.unique $stream
Filter the stream to remove duplicates.Note that memory use may potentially scale to O(k) where k is the number of distinct items, because this is implemented in terms of a seen hash.
In the future this will be optimized to be iterative for sorted streams.
References are keyed by their refaddr (see ``id'' in Hash::Util::FieldHash).
AUTHOR
Yuval Kogman <nothingmuch@woobling.org>COPYRIGHT AND LICENSE
This software is copyright (c) 2010 by Yuval Kogman.This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre