[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: XML DTD help for binary data

  • From: John Cowan <cowan@l...>
  • To: Gang He <gang@c...>, XML Dev <xml-dev@i...>
  • Date: Tue, 16 Jun 1998 16:54:32 -0400

he gang
Gang He wrote:

> I am working on writing a XML DTD to describe a data file. The file will
> contain some binary data. I understand that I can use Entity and
> Notation to do the job. But for some reason I have to make the file
> containing the binary data a XML document file. Could someone please
> tell me whether I can use PCDATA for the binary data directly

A bad idea, as XML files are UTF-8 by default, and your binary data
will probably not be.  You can use an XML declaration to make use of
an 8-bit charset like 8859-1, but that will cause the file to be
woefully misinterpreted by anyone else who gets it, which is contrary
to the spirit of XML.

> or I
> should make all binary characters into character references and then put
> them in PCDATA? And if I need make all binary characters into character
> references first, is there any way to convert the binary character into
> character reference automatically?

To really give a decent answer, we need to know what the binary data
is and why it's there.  The most XML-like solution is to take the
binary data and remap it into character data in a way that depends
on the type (if integer, as decimal numbers; if structured, using
XML structure).

Give us more details, please.

-- 
John Cowan	http://www.ccil.org/~cowan		cowan@c...
	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)

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


PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
 

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.


Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.