Re: URI Templates: done or dead?

Roy T. Fielding scripsit:

> > Actually, I thought they were opaque bytestreams wrapped in ASCII, e.g.
> > %80 or %FF in a URI should be valid in the resource path, no?
> 
> Yes,

Yes, they are valid; no, a URI is not an opaque bytestream wrapped in ASCII.
There are only two mentions of bytes in RFC 3986: one that denies that URIs
must be byte-by-byte identical to be identical (i.e. they may have different
encodings as bytes), and another (irrelevant here) explaining about how
bytes in IP addresses are encoded.

> so one answer would be to allow percent-encoded-UTF-8 in the
> variable names as well.  

Allowing ASCII-only mantains maximum compatibility across implementations.

-- 
John Cowan  cowan@ccil.org   http://ccil.org/~cowan
"The exception proves the rule."  Dimbulbs think: "Your counterexample proves
my theory."  Latin students think "'Probat' means 'tests': the exception puts
the rule to the proof."  But legal historians know it means "Evidence for an
exception is evidence of the existence of a rule in cases not excepted from."