/ 
Data-TUID-0.01
River stage one • 1 direct dependent • 1 total dependent
/ Data::TUID

NAME

Data::TUID - A smaller and more communicable pseudo-UUID

VERSION

Version 0.01

SYNOPSIS

use Data::TUID

my $tuid = tuid             # Generate a TUID of (default) length 8
$tuid = tuid length => 4    # Generate a TUID of length 4
$tuid = Data::TUID->tuid    # Generate a TUID with the default length

$tuid = tuid uuid => '1bf4d967-9e4c-4414-9be0-26f31c16fb53' # Generate a TUID based of the give UUID

A sample run (length 4):

rrry ggf5 m1qb xczx pv9y

A sample run (length 8):

5xcfw8nj 2q255fyg pn3xns4k 1xcamd3y eczzca9c

A sample run (no length limit):

2kdk8wzjmfapj28cvexj6qndq7 2tmzr1f3k46tr813dtrxx2vhkqkd 1x3608c39mb1n726dhmxedjy72d pre6tg2dm37zbw9amxg2c8bghn 3ys0kw21rmtpf54gsmnd28r99pj

DESCRIPTION

Data::TUID is a tool for creating small, communicable pseudo-unique identifiers. Essentially it will take a UUID, pass the result through Encode::Base32::Crockford, and resize accordingly (via substr)

Although I've tried to sample the UUID evenly, this technique does not give any guarantee on uniqueness. Caveat emptor.

Finally, the result is more communicable (and smaller) due to the Crockford base 32 encoding. The Crockford technique uses:

A case-insensitive mapping
1 in place of '1','I', 'i', and 'L'
0 in place of '0', 'O', and 'o'

So, given a TUID (say something a user typed in for a URL), you can translate ambiguous characters (1, I, i, L, 0, 0, and o) into to 1 and 0.

USAGE

Data::TUID->tuid( ... )

Data::TUID::tuid( ... )

tuid ...

The arguments are:

uuid    The UUID to use as a basis for the TUID. If none is given, one will be generated for you

length  The length of the TUID returned. By default 8. A length of -1 will result in the whole
        UUID being used, and a variable length TUID being returned (somewhere between 25 to 28)

SEE ALSO

Encode::Base32::Crockford

Data::UUID::LibUUID

AUTHOR

Robert Krimen, <rkrimen at cpan.org>

BUGS

Please report any bugs or feature requests to bug-data-tuid at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Data-TUID. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc Data::TUID

You can also look for information at:

ACKNOWLEDGEMENTS

COPYRIGHT & LICENSE

Copyright 2009 Robert Krimen, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.