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

Re: entities in XML Schema

  • From: Daniel Veillard <Daniel.Veillard@w...>
  • To: "Henry S. Thompson" <ht@c...>
  • Date: Mon, 13 Mar 2000 15:48:09 +0100

entities in xml schema
On Mon, Mar 13, 2000 at 10:18:01AM +0000, Henry S. Thompson wrote:
> "Mark Volkmann" <volkmann@i...> writes:
> 
> > I've poured over all three parts of the XML Schema working draft (0, 1 & 2)
> > and cannot find anything similar to entity definitions in DTDs. Am I missing
> > it or has that functionality been omitted from XML Schema on purpose?
> 
> Yes.  Since XML Schema begins work on the infoset of a well-formed
> (perhaps valid) XML document, parsed entity definition substitution
> has already taken place.  We decided a two-pass architecture was too
> clunky, and arguably impossible, and concluded the best thing was to
> leave XML 1.0 entities to XML 1.0 mechanisms (i.e. you can define
> entities in the internal subset) .

  Note also the existing XInclude proposal
    http://www.w3.org/TR/xinclude

which could ultimately provide a non-Dtd based replacement for
external parsed entities. This is one piece of the puzzle which
is being handled by the XML Core WG now (started in the Linking
WG). The pieces are:

  - XInclude for external parsed entities
  - XML Schemas URI type to detect external entities
  - XLink constructs to build links

However I don't see any way to replace internal entities. However
IMHO internal entities are fine (easy to declare and handle).

Daniel

-- 
Daniel.Veillard@w... | W3C, INRIA Rhone-Alpes  | Today's Bookmarks :
Tel : +33 476 615 257  | 655, avenue de l'Europe | Linux XML libxml WWW
Fax : +33 476 615 207  | 38330 Montbonnot FRANCE | Gnome rpm2html rpmfind
 http://www.w3.org/People/all#veillard%40w3.org  | RPM badminton Kaffe

***************************************************************************
This is xml-dev, the mailing list for XML developers.
To unsubscribe, mailto:majordomo@x...&BODY=unsubscribe%20xml-dev
List archives are available at http://xml.org/archives/xml-dev/
***************************************************************************

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.