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

Re: Remember to RELAX (was RE: Are there still a lot of peopleusingDTD)

  • From: Rick JELLIFFE <ricko@g...>
  • To: xml-dev@l...
  • Date: Wed, 02 Aug 2000 16:30:06 +0800

Re: Remember to RELAX (was RE: Are there still a lot of peopleusingDTD)
Bob Kline wrote:
> On Wed, 2 Aug 2000, Rick JELLIFFE wrote:
> > RELAX (and DCD) provide something much better: they allow
> > co-occurence constraints. I think these are limited to just element
> > names and attributes along the ancestor axis, so that
> > stream-processing can be done.  Schematron allows constraints from
> > any axis, including poking around other documents. Dave Ragget's
> > Assertion Grammars started the idea AFAIK.

Oops, wrong term, right idea. Not "co-occurrence constraint" (i.e., if
you have x attribute you must have y) but "attributes can help determine
the type of an element".  I apologise for this. So slack.

For capturing many kinds of arbitrary constraints before modeling them,
my schema language schematron is quite useful. 
You can make assertions about the structure in a fairly rapid,
incremental way. Then when you move to a schema language with datatyping
(XMl Schemas, RELAX, etc) you can tick off or delete each assertion in
the Schematron schema.

Rick Jelliffe


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.
First Name
Last Name
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.