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


Help: OASIS Mailing Lists Help | MarkMail Help



   Re: Foreign object inclusion WAS: Namespaces, Architectural Forms, and S

[ Lists Home | Date Index | Thread Index ]
  • From: "Rick Jelliffe" <ricko@allette.com.au>
  • To: <xml-dev@ic.ac.uk>
  • Date: Fri, 6 Feb 1998 23:59:38 +1100

> From: Don Park <donpark@quake.net>

> As far as I can see there are two problems:
> 1. Embedding Binary Data inside XML document
> This problem is solved with BASE64.  I wish we can specify it in the DTD but
> its workable now.

You can. For example

<!NOTATION base64 SYSTEM "http://www.somewhere.com/base64-decoder.applet">
	encoding NOTATION ( base64 ) "base64" >

An element can have one NOTATION attribute, which specifies how to interpret
the element's data. Often this is used to restrict possible notations to
lists of types, for example

<!ATTLIST figure
	type NOTATION ( gif | epsi | cgm | jpeg ) #REQUIRED >

Developers of generic XML tools should make sure that their systems
provide ways to interpret NOTATION attributes appropriately: it is
a mechnism like MIME media-types, but may be on a finer grain. It is
not a mechanism for multi-part documents (unless the DTD is a DTD
for representing multipart documents of course) because the notation
processor (which the SYSTEM identifier on the NOTATION declaration
would identify) runs after the XML processor.

Rick Jelliffe 

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)


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

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