Re: [office] Version Attribute Proposal

[Michael Brauer - Sun Germany - ham02 - Hamburg <Michael.Brauer@Sun.COM>]

Dave Pawson wrote:
> On 25/11/06, Michael Brauer <Michael.Brauer@sun.com> wrote:
>> >> Some notes:
>> >> - In order to achieve that ODF 1.0/1.2 remain valid ODF 1.2 
>> instances, I
>> >>    have kept the attribute optional in the schema. The description
>> >>    however states that the attribute actually is mandatory for ODF 1.2
>> >>    documents.
>> >
>> > I don't agree with keeping it optional.
>> > That would imply forward compatibility, which is clearly impossible to
>> > operate.
>> > If that is wanted, I'd suggest wording as used in XSLT from W3C.
>> > If a processor for version X meets a version >X then its response is
>> > undefined.
>>
>> Isn't the situation I'm describing "If a processor for version X meets a
>> version <X"? What I want to achieve with keeping the version attribute
>> optional is that if a 1.2 processor validates a 1.0 or 1.1 document
>> against the 1.2 schema, that it then does not get validation errors.
> 
> 
> For me, asking that a 1.0 document is valid to 1.2 is not practical.
> I don't want to follow what M$ do.
> 
> If a 1.0 ODF document had the version, I could 'transform' it into 1.2
> (maybe), then work with it.
> 
> This is exactly the reason that it should not be optional Michael.
> So that a processor knows what to do with a 'different' version to the one
> it is expecting.
> If no version is present, how can I guess what verison it is?

Well, an ODF 1.2 document always must have a "1.2" version attribute, 
this is only not enforced in the schema. But I think you convinced me 
that it is reasonable to make the attribute mandatory.

If we do so. What should be the values that the attribute may have. Only 
"1.2"?

Or should we also support "1.0" and "1.1" until we know that a 1.0/1.1 
document is a valid 1.2 instance? Right now, this is the case.

Michael

> 
> 
> regards
> 
> 
> 


-- 
Michael Brauer, Technical Architect Software Engineering
StarOffice/OpenOffice.org
Sun Microsystems GmbH             Nagelsweg 55
D-20097 Hamburg, Germany          michael.brauer@sun.com
http://sun.com/staroffice         +49 40 23646 500
http://blogs.sun.com/GullFOSS