On Wednesday, March 5, 2003, at 12:20  Uhr, Stephane Ducasse wrote:

> I know,
> so may be Squeak should have a well identified tag.

It does:  .image

You could, of course, call it .squeakImage or something, but that won't 
help you with the image files as they come out of the zip file, unless 
the whole Squeak community decides to change as well.

You could also use type/creator codes, and I think the Carbon VM even 
supports them.  However, those aren't cross-platform, so they have at 
least the problem above in that a freshly unzipped image is not going 
to have them.

> Is there a registration palce on mac for the tags?

Apple used to register type/creator codes.  I am not sure if they have 
something for file-extensions, and I am also not sure what the point 
would be.  If you have a free choice, you can choose a long enough 
extension to be (almost certainly) non-ambiguous.  If you don't have 
free choice (due to cross platform issues, for example), then the 
registry isn't going to help.

Marcel

-- 
Marcel Weiher				Metaobject Software Technologies
marcel at metaobject.com		www.metaobject.com
Metaprogramming for the Graphic Arts.   HOM, IDEAs, MetaAd etc.