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- From: John Cowan <cowan@locke.ccil.org>
- To: XML Dev <xml-dev@ic.ac.uk>
- Date: Mon, 28 Sep 1998 10:57:54 -0400
David Megginson scripsit:
> I don't think that you need a CDATA section with Base64 (can someone
> confirm that Base64 excludes '<' and '&'?).
I confirm it. Base64 has 65 characters: A-Z, a-z, 0-9, +, -, and =,
the last of which is used for padding purposes when the binary
is not a multiple of 3 bytes (Base64 is basically a 3-byte binary
to/from 4-byte ASCII conversion).
Authoritative information is available in RFC 2045, clause 6.8.
> > * Wrap the document in a multipart/related MIME message
> > and include the content as attachments
>
> This sounds like a wise choice. XML packaging is a problem that the
> W3C XML Activity has not yet addressed -- experimentation and
> implementation experience will be very helpful to them when the time
> comes (after all, that's one of XML-DEV's greatest strengths).
One advantage of multipart/related is that there is a standard
URL format for referring from one part of a multipart message to
another. Each part can have a Content-ID: header, analogous to
the overall Message-ID: header, and then an URL of the form
"cid:xx7f9weURV@whoever.com" can refer to the part with that
header. See RFC 2111.
--
John Cowan http://www.ccil.org/~cowan cowan@ccil.org
You tollerday donsk? N. You tolkatiff scowegian? Nn.
You spigotty anglease? Nnn. You phonio saxo? Nnnn.
Clear all so! 'Tis a Jute.... (Finnegans Wake 16.5)
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