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

VERSION
    Version 0.011

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 off of the given 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

    <http://www.crockford.com/wrmg/base32.html>

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:

    *   RT: CPAN's request tracker

        <http://rt.cpan.org/NoAuth/Bugs.html?Dist=Data-TUID>

    *   AnnoCPAN: Annotated CPAN documentation

        <http://annocpan.org/dist/Data-TUID>

    *   CPAN Ratings

        <http://cpanratings.perl.org/d/Data-TUID>

    *   Search CPAN

        <http://search.cpan.org/dist/Data-TUID/>

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.