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.\" ========================================================================
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.IX Title "Encode::Unicode::UTF7 3perl"
.TH Encode::Unicode::UTF7 3perl "2021-09-24" "perl v5.32.1" "Perl Programmers Reference Guide"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Encode::Unicode::UTF7 \-\- UTF\-7 encoding
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 3
\&    use Encode qw/encode decode/; 
\&    $utf7 = encode("UTF\-7", $utf8);
\&    $utf8 = decode("UTF\-7", $ucs2);
.Ve
.SH "ABSTRACT"
.IX Header "ABSTRACT"
This module implements \s-1UTF\-7\s0 encoding documented in \s-1RFC 2152.\s0  \s-1UTF\-7,\s0
as its name suggests, is a 7\-bit re-encoded version of \s-1UTF\-16BE.\s0  It
is designed to be MTA-safe and expected to be a standard way to
exchange Unicoded mails via mails.  But with the advent of \s-1UTF\-8\s0 and
8\-bit compliant MTAs, \s-1UTF\-7\s0 is hardly ever used.
.PP
\&\s-1UTF\-7\s0 was not supported by Encode until version 1.95 because of that.
But Unicode::String, a module by Gisle Aas which adds Unicode supports
to non\-utf8\-savvy perl did support \s-1UTF\-7,\s0 the \s-1UTF\-7\s0 support was added
so Encode can supersede Unicode::String 100%.
.SH "In Practice"
.IX Header "In Practice"
When you want to encode Unicode for mails and web pages, however, do
not use \s-1UTF\-7\s0 unless you are sure your recipients and readers can
handle it.  Very few MUAs and \s-1WWW\s0 Browsers support these days (only
Mozilla seems to support one).  For general cases, use \s-1UTF\-8\s0 for
message body and MIME-Header for header instead.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Encode, Encode::Unicode, Unicode::String
.PP
\&\s-1RFC 2781\s0 <http://www.ietf.org/rfc/rfc2152.txt>