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Extending type definitions using RelaxNG Compact

• To: <xml-dev@l...>
• Subject: Extending type definitions using RelaxNG Compact
• From: "Kristopher Brown" <Kristopher.Brown@d...>
• Date: Fri, 11 Jul 2003 14:49:57 +0100
• Thread-index: AcNHs1C4uMZadDqaScmpKjVleNfslw==
• Thread-topic: Extending type definitions using RelaxNG Compact

Hi,

We are using xsd:string as the base datatype for our types: e.g.

  datatypes xsd = "http://www.w3.org/2001/XMLSchema-datatypes"

  FirstName = xsd:string {
      maxLength = "30"
  }

  LastName = xsd:string {
      maxLength = "60"
  }

We'd like to introduce a more restricted string type, something like:

  AlphaString = xsd:string {
      pattern = "[a-zA-Z]*"
  }

  FirstName = AlphaString {
      maxLength = "30"
  }

  LastName = AlphaString {
      maxLength = "60"
  }

which would be equivalent to:

  FirstName = xsd:string {
      pattern = "[a-zA-Z]*"
      maxLength = "30"
  }

  LastName = xsd:string {
      pattern = "[a-zA-Z]*"
      maxLength = "60"
  }

Unfortunately, the "FirstName = AlphaString" example doesn't work.  Does
anyone know a way of achieving what I'm trying to do?  Is it even
possible with RelaxNG?

Cheers
Kris.

• Follow-Ups:
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    • From: Jeni Tennison <jeni@j...>

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