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

Re: [schema] which assertions can't you express ?

• To: ncross@i...
• Subject: Re: [schema] which assertions can't you express ?
• From: David Carlisle <davidc@n...>
• Date: Wed, 8 Sep 2004 15:45:50 +0100
• Cc: Philippe.Poulard@s..., xml-dev@l...
• In-reply-to: <7E088395C7098E41A97BF6890C5A33290103F5D6@h...>(ncross@i...)
• References: <7E088395C7098E41A97BF6890C5A33290103F5D6@h...>

> So in XSD how would I say that this item, wherever it appears in the
> tree will always be a string? 
> <section id="name"/>

you can't.

in relax ng it would be something lke


section |= element section {attribute id {"name"}, xsd:string}

where this snippet says that the pattern "section" means a section
element which _has_ to have id="name" and content an xsd:string and the
|= means that it will be -or-ed together with any other definitions to
hand so by having a bunch of these for all possible id values you can
express the constraints that I think you want.

David

________________________________________________________________________
This e-mail has been scanned for all viruses by Star. The
service is powered by MessageLabs. For more information on a proactive
anti-virus service working around the clock, around the globe, visit:
http://www.star.net.uk
________________________________________________________________________

• References:
  • RE: [schema] which assertions can't you express ?
    • From: "Cross, Neal - Senior Developer" <ncross@i...>

• Prev by Date: PLEASE UNSUBSCRIBE ME FROM THIS MAILING LIST -THANKS
• Next by Date: Re: [schema] which assertions can't you express ?
• Previous by thread: RE: [schema] which assertions can't you express ?
• Next by thread: RE: [schema] which assertions can't you express ?
• Index(es):
  • Date
  • Thread