/ 
QRCode-Base45-0.01
River stage zero No dependents
/ QRCode::Base45

NAME

QRCode::Base45 - Base45 encoding used in QR codes

VERSION

Version 0.01

SYNOPSIS

use QRCode::Base45;

my $text_for_qrcode = encode_base45($binary_data);
my $binary_data = decode_base45($text_from_qrcode);

DESCRIPTION

This module handles encoding/decoding Base45 data, as described in draft-faltstrom-base45-06. Base45 is used especially in QR codes.

encode_base45

Takes arbitrary string as argument, and returs the Base45 representation of it. Character strings (as opposed to byte strings) are encoded to bytes as UTF-8 first.

For zero-length strings (undef or '') the empty string is returned.

decode_base45

The function takes a textual base45 representation of data, and tries to decode it. Returned value is a byte string (as this function cannot know whether the contents should be interpreted as bytes or UTF-8 data (or whatever else). The caller has to decode the characters afterwards, if needed.

For zero-length input, the empty string is returned.

For invalid inputs, such as strings of length 3n+1 or characters outside of the Base45 alphabet, this function croak()s.

AUTHOR

Jan "Yenya" Kasprzak, <kas at fi.muni.cz>

BUGS

Please report any bugs or feature requests to bug-qrcode-base45 at rt.cpan.org, or through the web interface at https://rt.cpan.org/NoAuth/ReportBug.html?Queue=QRCode-Base45. 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 QRCode::Base45

You can also look for information at:

ACKNOWLEDGEMENTS

LICENSE AND COPYRIGHT

This software is copyright (c) 2021 by Jan "Yenya" Kasprzak.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.