06 Jul 2022 14:20:39 UTC
- Distribution: MIME-tools
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- Latest version++ed by:6 non-PAUSE usersDSKOLL Dianne Skoll
MIME::Decoder::Base64 - encode/decode a "base64" stream
A generic decoder object; see MIME::Decoder for usage.
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.
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).
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.
Eryq (firstname.lastname@example.org), 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.