- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 04 Feb 2000 00:15:05 +0000
- To: Roger Costello <costello@mitre.org>
- Cc: xml-dev@ic.ac.uk, www-xml-schema-comments@w3c.org, jcs@mitre.org
Roger Costello <costello@mitre.org> writes:
> I have created an XML Schema document for juice machines. Part of the
> description of each juice machine is its cost. One of the first things
> that I did is create a money datatype:
>
> <datatype name="money" source="decimal">
> <scale value="2"/>
> </datatype>
>
> Then, I declared the cost element to be of type money:
>
> <element name="cost" type="money"/>
>
> Seems reasonable, right? Well, the next thing that I wanted to do was
> to add an attribute - currency - to the cost element. This is where I
> ran into problems. Attributes are typically declared like this:
>
> <element name="cost">
> <type>
> <attribute name="currency" type="string" minOccurs="1"/>
> <type>
> </element>
<element name="cost">
<type source="money" derivedBy="extension">
<attribute name="currency" type="string" minOccurs="1"/>
<type>
</element>
is the solution you are looking for.
ht
--
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
W3C Fellow 1999--2001, part-time member of W3C Team
2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
URL: http://www.ltg.ed.ac.uk/~ht/
Received on Thursday, 3 February 2000 19:15:10 UTC