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

Re: Constraints on Attvalues

  • From: John Cowan <cowan@l...>
  • To: xml-dev@i...
  • Date: Thu, 27 Aug 1998 11:30:12 -0400 (EDT)

internal and external constraints
Peter Jones scripsit:

> So for my element:
> <myelem   attrib="&ent;"/>
> 
> &ent; can only refer to an internally declared entity, and the literal
> in the entity value, EntValue, cannot contain
>  "....&Another_ent;...." 
> where &Another_ent; is an external general entity.

You are quite right, provided you keep firmly in mind the distinction
between *being* an internal or external entity, and being
internally or externally *declared*.

Internal entities are those whose replacement text appears in the
declaration, and external entities are those whose replacement text
is referenced by a URI or Publicid.  Either kind can be declared
either internally (in the internal subset) or externally (in the
external subset or in an external parameter entity).

It's the first property (*being* an external entity) that is forbidden
in references from attribute values.  External parsed entities can only
be referenced from content.

-- 
John Cowan					cowan@c...
		e'osai ko sarji la lojban.

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.