RE: Question about open enumeration

Hello,

If my understanding is correct, the three lines you show below aren't
necessary, due to the attribute

memberTypes="xsd:string"

In schema unions, the datatypes-being-unioned can be in a space separated
list on that attribute, and also as children.

Thanks!

.micah

-----Original Message-----
From: Hiroshi Iwasaki [mailto:Iwasaki_Hiroshi@mse.mei.co.jp]
Sent: Sunday, December 02, 2001 5:41 PM
To: www-forms@w3.org
Subject: Question about open enumeration


Hi all xformers;

I have a question about open enumeration.
An example of schema syntax declaring an open enumeration 
is given in 5.4.3 Open Enumeration as follows:

<xsd:simpleType>
  <xsd:union memberTypes="xsd:string">
    <xsd:simpleType>
      <xsd:restriction base="xsd:string">
        <xsd:enumeration value="Mastercard"/>
        <xsd:enumeration value="Diner's Club"/>
        <xsd:enumeration value="American Express"/>
      </xsd:restriction>
    </xsd:simpleType>
  </xsd:union>
</xsd:simpleType>

But I don't think this gives us any space to specify other choice.
In order to allow us to specify other choice, I think we need additional
three lienes as follows:

<xsd:simpleType>
  <xsd:union memberTypes="xsd:string">
    <xsd:simpleType>
      <xsd:restriction base="xsd:string">
        <xsd:enumeration value="Mastercard"/>
        <xsd:enumeration value="Diner's Club"/>
        <xsd:enumeration value="American Express"/>
      </xsd:restriction>
    </xsd:simpleType>
<!-- following three lines make this an open enumeration -->
    <xsd:simpleType>
        <xsd:restriction base="xsd:string"/>
    </xsd:simpleType>
  </xsd:union>
</xsd:simpleType>

Am I correct?

Best Reards.

Hiroshi Iwasaki
Iwasaki_Hiroshi@mse.mei.co.jp

Received on Monday, 3 December 2001 13:30:48 UTC