Gathering restricted values using a subject scheme map

[Radu Coravu <radu_coravu@sync.ro>]

Hi everybody,

Let's say I have a subject scheme map like this:

> <!DOCTYPE subjectScheme PUBLIC "-//OASIS//DTD DITA Subject Scheme Map//EN" "subjectScheme.dtd">
> <subjectScheme>
>     <subjectdef keys="floatLeft">
>         <subjectdef keys="left"/>
>     </subjectdef>
>     <subjectdef keys="outputclassFig">
>         <subjectdef keys="none"/>
>         <subjectdef keyref="floatLeft"/>
>     </subjectdef>
>     <enumerationdef>
>         <attributedef name="outputclass"/>
>         <subjectdef keyref="outputclassFig"/>
>     </enumerationdef>
> </subjectScheme>

which imposes for the attribute "outputclass" a set of fixed possible 
values.
What values does it impose for @outputclass?
Does it impose that its values should be either "none" or "left"?
Or does it impose that its values should be either "none", "floatLeft", 
or "left"?

Regards,
Radu

Radu Coravu
<oXygen/>  XML Editor, Schema Editor and XSLT Editor/Debugger
http://www.oxygenxml.com