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SPVM::MIME::QuotedPrint - Encoding and decoding of quoted-printable strings


  use MIME::QuotedPrint;
  my $encoded = MIME::QuotedPrint->encode_qp($decoded);
  my $decoded = MIME::QuotedPrint->decode_qp($encoded);


MIME::QuotedPrint is a SPVM module to encoding and decoding of quoted-printable strings.

This is a porting of MIME::QuotedPrint to SPVM.

This module provides functions to encode and decode strings into and from the quoted-printable encoding specified in RFC 2045 - MIME (Multipurpose Internet Mail Extensions).


SPVM is yet experimental status.

Class Methods

The list of class methods.


  static method encode_qp : string ($str : string, $eol = undef : string, $binmode = 0 : int)

This function returns an encoded version of the string ($str) given as argument.

The second argument ($eol) is the line-ending sequence to use. It is optional and defaults to "\n". Every occurrence of "\n" is replaced with this string, and it is also used for additional "soft line breaks" to ensure that no line end up longer than 76 characters. Pass it as "\015\012" to produce data suitable for external consumption. The string "\r\n" produces the same result on many platforms, but not all.

The third argument ($binmode) will select binary mode if passed as a TRUE value. In binary mode "\n" will be encoded in the same way as any other non-printable character. This ensures that a decoder will end up with exactly the same string whatever line ending sequence it uses. In general it is preferable to use the base64 encoding for binary data; see MIME::Base64.

An $eol of "" (the empty string) is special. In this case, no "soft line breaks" are introduced and binary mode is effectively enabled so that any "\n" in the original data is encoded as well.


  static method decode_qp : string ($str : string);

This function returns the plain text version of the string given as argument. The lines of the result are "\n" terminated, even if the $str argument contains "\r\n" terminated lines.



Yuki Kimoto (

Copyright & License

Copyright 2022-2022 Yuki Kimoto, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

See Also