RFC 2231 (rfc2231) - Page 1 of 10

MIME Parameter Value and Encoded Word Extensions: Character Sets, Languages, and Continuations

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Network Working Group                                         N. Freed
Request for Comments: 2231                                    Innosoft
Updates: 2045, 2047, 2183                                     K. Moore
Obsoletes: 2184                                University of Tennessee
Category: Standards Track                                November 1997


           MIME Parameter Value and Encoded Word Extensions:
              Character Sets, Languages, and Continuations


Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1997).  All Rights Reserved.

1.  Abstract

   This memo defines extensions to the RFC 2045 media type and RFC 2183
   disposition parameter value mechanisms to provide

    (1)   a means to specify parameter values in character sets
          other than US-ASCII,

    (2)   to specify the language to be used should the value be
          displayed, and

    (3)   a continuation mechanism for long parameter values to
          avoid problems with header line wrapping.

   This memo also defines an extension to the encoded words defined in
   RFC 2047 to allow the specification of the language to be used for
   display as well as the character set.

2.  Introduction

   The Multipurpose Internet Mail Extensions, or MIME [RFC-2045, RFC-
   2046, RFC-2047, RFC-2048, RFC-2049], define a message format that
   allows for:





Freed & Moore               Standards Track
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