mime::decoder::base64(3psme)
NAME
MIME::Decoder::Base64 - encode/decode a "base64" stream
SYNOPSIS
A generic decoder object; see MIME::Decoder for usage.
DESCRIPTION
A MIME::Decoder subclass for the "base64" encoding. The name was
chosen to jibe with the pre-existing MIME::Base64 utility package,
which this class actually uses to translate each chunk.
- o When decoding, the input is read one line at a time. The input
- accumulates in an internal buffer, which is decoded in
multiple-of-4-sized chunks (plus a possible "leftover" input chunk, of course). - o When encoding, the input is read 45 bytes at a time: this ensures
- that the output lines are not too long. We chose 45 since it is a
multiple of 3 and produces lines under 76 characters, as RFC 2045
specifies:The encoded output stream must be represented in lines of no - more
than 76 characters each.
SEE ALSO
MIME::Decoder
AUTHOR
Eryq (eryq@zeegee.com), ZeeGee Software Inc (http://www.zeegee.com).
- All rights reserved. This program is free software; you can
redistribute it and/or modify it under the same terms as Perl itself.