On 19.04.2010, at 10:03, Stéphane Rollandin wrote:
> 
>> This is the kind of thing that OpenDoc addressed. You might want to
>> check and see how OD handled it.
> 
> Thanks, although I have no idea about what OpenDoc is. Google did not help much; any pointer ?
> 
> Stef

http://en.wikipedia.org/wiki/OpenDocument

Q: What do you get if you mix the Open Document Format, Tweak, Etoys, and TeaTime?
A: TinLizzie WysiWiki

That's one of the research prototypes done at Viewpoints in 2007. You could e.g. use Open Office to open an Etoys project, edit, save, and run the changed version in Squeak again. The Open Document Format is extensible, and Open Office preserves unknown tags, so the Etoys scripts were unharmed, even though Open Office could not interpret them:

http://www.vpri.org/pdf/tr2007001_tinlizz.pdf

- Bert -