XSD restrictions - both string and numerical

[voorth]

I was wondering if it is possible to define an restricted attribute
such that the following forms are both valid:

<myElement value="hi"/<!-- value should be "hi" or "lo" -->
<myElement value="100"/><!-- value should be between 50-150 -->

[Martin Honnen]

Re: XSD restrictions - both string and numerical

voorth wrote:

I was wondering if it is possible to define an restricted attribute
such that the following forms are both valid:
>
<myElement value="hi"/<!-- value should be "hi" or "lo" -->
<myElement value="100"/><!-- value should be between 50-150 -->

You can define a union type of two simple types:

<xs:attribute name="value">
<xs:simpleTyp e>
<xs:union>
<xs:simpleTyp e>
<xs:restricti on base="xs:string ">
<xs:enumerati on value="hi"/>
<xs:enumerati on value="lo"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleTyp e>
<xs:restricti on base="xs:int">
<xs:minInclusiv e value="50"/>
<xs:maxInclusiv e value="100"/>
</xs:restriction>
</xs:simpleType>
</xs:union>
</xs:simpleType>
</xs:attribute>

See section "2.5.1.3 Union datatypes" in
<URL:http://www.w3.org/TR/xmlschema-2/#datatype-dichotomies>
--

Martin Honnen
http://JavaScript.FAQTs.com/

[usenet@tech-know-ware.com]

Re: XSD restrictions - both string and numerical

On 12 Feb, 11:33, voorth <voo...@xs4all. nlwrote:

I was wondering if it is possible to define an restricted attribute
such that the following forms are both valid:
>
<myElement value="hi"/<!-- value should be "hi" or "lo" -->
<myElement value="100"/><!-- value should be between 50-150 -->

You can use XML schema xs:union construct to do this. Something along
the lines of:

<xs:attribute name="value">
<xs:simpleTyp e>
<xs:union>
<xs:simpleTyp e>
<xs:restricti on base="xs:int">
<xs:minInclusiv e value="50"/>
<xs:maxInclusiv e value="150"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleTyp e>
<xs:restricti on base="xs:string ">
<xs:enumerati on value="hi"/>
</xs:restriction>
</xs:simpleType>
</xs:union>
</xs:simpleType>
</xs:attribute>

Although you probably don't want the string part as restricted as
this!

HTH,

Pete Cordell
Codalogic
Visit http://www.codalogic.com/lmx/ for XML C++ data binding

[usenet@tech-know-ware.com]

Re: XSD restrictions - both string and numerical

On 12 Feb, 12:41, use...@tech-know-ware.com wrote:

On 12 Feb, 11:33, voorth <voo...@xs4all. nlwrote:
>

I was wondering if it is possible to define an restricted attribute
such that the following forms are both valid:

>
...
>
Although you probably don't want the string part as restricted as
this!

Ooops, missed the 'lo' part. See Martin's answer for that. He must
type faster than me!

HTH,

Pete Cordell
Codalogic
Visit http://www.codalogic.com/lmx/ for XML C++ data binding

[voorth]

Re: XSD restrictions - both string and numerical

Thanks, guys, that was just what I was looking for.