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

Re: RelaxNG question

• To: Tim Bray <tbray@t...>
• Subject: Re: RelaxNG question
• From: James Clark <jjc@j...>
• Date: Tue, 19 Aug 2003 10:00:40 +0700
• Cc: XML Dev <xml-dev@l...>
• In-reply-to: <3F4110CF.5020308@t...>
• References: <3F4110CF.5020308@t...>
• User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20030225

Tim Bray wrote:

> Suppose in a RelaxNG schema (compact syntax) I have
> 
> default namespace eg = "http://example.com/"
> namespace noNS = ""
> 
> I'm writing a schema for something that will serve as a container, and I 
> have an element for which I want to say "This can contain mixed content 
> of more or less any elements/attributes with the constraint that no 
> elements may be unqualified (noNS above), and no elements or attributes 
> can be in my namespace ("eg" above).

You've got three kinds of elements here:

1) container elements in the eg namespace
2) children of container elements; let's call these border elements
3) descendants of the border elements; let's call these interior elements

If I have understood correctly, you want border elements not to be 
unqualified and not to be in the eg namespace.  What about interior 
elements? I suspect you *do* want to allow those to be unqualified. 
Assuming:

- container elements must not have any unqualified attributes
- container elements must not have any attributes in the eg namespace
- border elements must not have attributes in the eg namespace
- border elements must not be in the eg namespace
- border elements must not be unqualified
- interior elements must not have attributes in the eg namespace
- interior elements must not be in the eg namespace
- interior elements may be unqualified

you could write the schema like this:

namespace eg = "http://www.example.com"
namespace noNS = ""

interior =
    element * - eg:* {
      attribute * - eg:* { text }*,
      (interior|text)*
    }

border =
    element * - (eg:*|noNS:*) {
      attribute * - eg:* { text }*,
      (interior|text)*
    }

container =
    element eg:container {
      attribute * - (eg:*|noNS:*) { text }*,
      (border|text)*
    }

James

• References:
  • RelaxNG question
    • From: Tim Bray <tbray@t...>

• Prev by Date: Re: A standard approach to glueing together reusable XMLfragments in prose?
• Next by Date: Re: Federal Court says Microsoft infringed UC, Eolas WebObjects P...
• Previous by thread: Re: RelaxNG question
• Next by thread: RE: tool to generate one standalone DTD from multiple module DTD
• Index(es):
  • Date
  • Thread