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.\" ========================================================================
.\"
.IX Title "MIME::Decoder::Base64 3"
.TH MIME::Decoder::Base64 3 "2017-04-05" "perl v5.26.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
MIME::Decoder::Base64 \- encode/decode a "base64" stream
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
A generic decoder object; see MIME::Decoder for usage.
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
A MIME::Decoder subclass for the \f(CW"base64"\fR encoding.
The name was chosen to jibe with the pre-existing MIME::Base64
utility package, which this class actually uses to translate each chunk.
.IP "\(bu" 4
When \fBdecoding\fR, 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 \*(L"leftover\*(R" input chunk,
of course).
.IP "\(bu" 4
When \fBencoding\fR, 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 \s-1RFC 2045\s0
specifies:
    The encoded output stream must be represented in lines of no more
    than 76 characters each.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
MIME::Decoder
.SH "AUTHOR"
.IX Header "AUTHOR"
Eryq (\fIeryq@zeegee.com\fR), ZeeGee Software Inc (\fIhttp://www.zeegee.com\fR).
.PP
All rights reserved.  This program is free software; you can redistribute 
it and/or modify it under the same terms as Perl itself.