OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.


Help: OASIS Mailing Lists Help | MarkMail Help



   RE: Notations

[ Lists Home | Date Index | Thread Index ]
  • From: "Borden, Jonathan" <jborden@mediaone.net>
  • To: "'xml-dev'" <xml-dev@ic.ac.uk>
  • Date: Wed, 16 Dec 1998 22:17:56 -0500

At first glance it seems tempting to map MIME headers to XML as attributes.
This doesn't work well.

1) attributes don't obey order as elements do.
2) MIME headers can be duplicated (for example the Received: list in an

For these reasons, I map MIME headers to elements in XMTP.

The DTD is here:

Multiple transforms, some of which may include encryption etc, can be
represented as encapsulated MIME messages, the order of transformation of
which is required to be unambiguous.

If you would like to test this, I have placed a demo at:


Jonathan Borden
JABR Technology Corp.

> There's always the option of creating a NOTATION which itself defines the
> particular processing pipeline, as in
> <!NOTATION midi-gzip-base64 SYSTEM "http://www.foo.com/midi/gzip/base64">
> where the information contained at the URL will tell you, in
> addition to the
> necessary info about each individual "notation", about the ordering of
> processing inorder to recover the source data.
> But I think this example shows the limitations of the "general" solution
> that NOTATIONS provide.  Being general means that everyone has to
> "reinvent"
> the wheel in many cases on top of that generality.
> Paul V. Biron
> SGML Business Analyst
> Kaiser Permanente, So Cal.

xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/
To (un)subscribe, mailto:majordomo@ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo@ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa@ic.ac.uk)

  • References:


News | XML in Industry | Calendar | XML Registry
Marketplace | Resources | MyXML.org | Sponsors | Privacy Statement

Copyright 2001 XML.org. This site is hosted by OASIS