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encode::mime::header(3pm) [osx man page]

Encode::MIME::Header(3pm)				 Perl Programmers Reference Guide				 Encode::MIME::Header(3pm)

NAME
Encode::MIME::Header -- MIME 'B' and 'Q' header encoding SYNOPSIS
use Encode qw/encode decode/; $utf8 = decode('MIME-Header', $header); $header = encode('MIME-Header', $utf8); ABSTRACT
This module implements RFC 2047 Mime Header Encoding. There are 3 variant encoding names; "MIME-Header", "MIME-B" and "MIME-Q". The difference is described below decode() encode() ---------------------------------------------- MIME-Header Both B and Q =?UTF-8?B?....?= MIME-B B only; Q croaks =?UTF-8?B?....?= MIME-Q Q only; B croaks =?UTF-8?Q?....?= DESCRIPTION
When you decode(=?encoding?X?ENCODED WORD?=), ENCODED WORD is extracted and decoded for X encoding (B for Base64, Q for Quoted-Printable). Then the decoded chunk is fed to decode(encoding). So long as encoding is supported by Encode, any source encoding is fine. When you encode, it just encodes UTF-8 string with X encoding then quoted with =?UTF-8?X?....?= . The parts that RFC 2047 forbids to encode are left as is and long lines are folded within 76 bytes per line. BUGS
It would be nice to support encoding to non-UTF8, such as =?ISO-2022-JP? and =?ISO-8859-1?= but that makes the implementation too complicated. These days major mail agents all support =?UTF-8? so I think it is just good enough. Due to popular demand, 'MIME-Header-ISO_2022_JP' was introduced by Makamaka. Thre are still too many MUAs especially cellular phone handsets which does not grok UTF-8. SEE ALSO
Encode RFC 2047, <http://www.faqs.org/rfcs/rfc2047.html> and many other locations. perl v5.16.2 2012-10-11 Encode::MIME::Header(3pm)

Check Out this Related Man Page

MIME::QuotedPrint(3pm)					 Perl Programmers Reference Guide				    MIME::QuotedPrint(3pm)

NAME
MIME::QuotedPrint - Encoding and decoding of quoted-printable strings SYNOPSIS
use MIME::QuotedPrint; $encoded = encode_qp($decoded); $decoded = decode_qp($encoded); DESCRIPTION
This module provides functions to encode and decode strings into the Quoted-Printable encoding specified in RFC 2045 - MIME (Multipurpose Internet Mail Extensions). The Quoted-Printable encoding is intended to represent data that largely consists of bytes that correspond to printable characters in the ASCII character set. Non-printable characters (as defined by english americans) are represented by a triplet consisting of the character "=" followed by two hexadecimal digits. The following functions are provided: encode_qp($str) This function will return an encoded version of the string given as argument. Note that encode_qp() does not change newlines " " to the CRLF sequence even though this might be considered the right thing to do (RFC 2045 (Q-P Rule #4)). decode_qp($str); This function will return the plain text version of the string given as argument. If you prefer not to import these routines into your namespace you can call them as: use MIME::QuotedPrint (); $encoded = MIME::QuotedPrint::encode($decoded); $decoded = MIME::QuotedPrint::decode($encoded); COPYRIGHT
Copyright 1995-1997 Gisle Aas. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.8.0 2002-06-01 MIME::QuotedPrint(3pm)
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