[Zope3-dev] Notations for paths

[Florent Guillaume]

On Thu, 2002-12-19 at 18:01, Phillip J. Eby wrote:
> >So, there are special functions for correctly converting between the 
> >string form and the tuple form.
> >
> >I've had to correct a number of bugs where the naive conversion had been 
> >used. These bugs were somewhat tricky to track down, becuase the effects 
> >didn't point to this as the obvious cause.
> 
> I think you missed my point.  This is *precisely* why Zope shouldn't use an 
> unencapsulated representation like tuples for this in the first place!
> 
> Nobody should be doing any conversions directly.  There should be a 
> location class, and only strings or instances of the location class should 
> be allowed.  Code which uses locations should invoke the location 
> constructor on any input, to ensure that strings become locations.

Why go to those lengths when we can have a perfectly effective location
as a tuple of names in trivial bijection with a string?

Florent

-- 
Florent Guillaume, Nuxeo (Paris, France)
+33 1 40 33 79 87  http://nuxeo.com  mailto:fg@nuxeo.com