the encoded-word would contain an exact multiple of 3 encoded
      octets), except that the second 'encoded-word' uses a different
      'charset' than the first one.

   From: =?ISO-8859-1?Q?Olle_J=E4rnefors?= <ojarnef@admin.kth.se>
   To: ietf-822@dimacs.rutgers.edu, ojarnef@admin.kth.se
   Subject: Time for ISO 10646?

   To: Dave Crocker <dcrocker@mordor.stanford.edu>
   Cc: ietf-822@dimacs.rutgers.edu, paf@comsol.se
   From: =?ISO-8859-1?Q?Patrik_F=E4ltstr=F6m?= <paf@nada.kth.se>
   Subject: Re: RFC-HDR care and feeding






 
RFC 2047               Message Header Extensions           November 1996


   From: Nathaniel Borenstein <nsb@thumper.bellcore.com>
         (=?iso-8859-8?b?7eXs+SDv4SDp7Oj08A==?=)
   To: Greg Vaudreuil <gvaudre@NRI.Reston.VA.US>, Ned Freed
      <ned@innosoft.com>, Keith Moore <moore@cs.utk.edu>
   Subject: Test of new header generator
   MIME-Version: 1.0
   Content-type: text/plain; charset=ISO-8859-1

   The following examples illustrate how text containing 'encoded-word's
   which appear in a structured field body.  The rules are slightly
   different for fields defined as '*text' because "(" and ")" are not
   recognized as 'comment' delimiters.  [Section 5, paragraph (1)].

   In each of the following examples, if the same sequence were to occur
   in a '*text' field, the "displayed as" form would NOT be treated as
   encoded words, but be identical to the "encoded form".  This is
   because each of the encoded-words in the following examples is
   adjacent to a "(" or ")" character.

   encoded form                                displayed as
   ---------------------------------------------------------------------
   (=?ISO-8859-1?Q?a?=)                        (a)

   (=?ISO-8859-1?Q?a?= b)                      (a b)

           Within a 'comment', white space MUST appear between an
           'encoded-word' and surrounding text.  [Section 5,
           paragraph (2)].  However, white space is not needed between
           the initial "(" that begins the 'comment', and the
           'encoded-word'.


   (=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=)     (ab)

           White space between adjacent 'encoded-word's is not
           displayed.

   (=?ISO-8859-1?Q?a?=  =?ISO-8859-1?Q?b?=)    (ab)

        Even multiple SPACEs between 'encoded-word's are ignored
        for the purpose of display.

   (=?ISO-8859-1?Q?a?=                         (ab)
       =?ISO-8859-1?Q?b?=)

           Any amount of linear-space-white between 'encoded-word's,
           even if it includes a CRLF followed by one or more SPACEs,
           is ignored for the purposes of display.




 
RFC 2047               Message Header Extensions           November 1996


   (=?ISO-8859-1?Q?a_b?=)                      (a b)

           In order to cause a SPACE to be displayed within a portion
           of encoded text, the SPACE MUST be encoded as part of the
           'encoded-word'.

   (=?ISO-8859-1?Q?a?= =?ISO-8859-2?Q?_b?=)    (a b)

           In order to cause a SPACE to be displayed between two strings
           of encoded text, the SPACE MAY be encoded as part of one of
           the 'encoded-word's.

9. References

   [RFC 822] Crocker, D., "Standard for the Format of ARPA Internet Text
       Messages", STD 11, RFC 822, UDEL, August 1982.

   [RFC 2049] Borenstein, N., and N. Freed, "Multipurpose Internet Mail
       Extensions (MIME) Part Five: Conformance Criteria and Examples",
       RFC 2049, November 1996.

   [RFC 2045] Borenstein, N., and N. Freed, "Multipurpose Internet Mail