- From: James M Snell <jasnell@gmail.com>
- Date: 2013年8月13日 15:26:46 -0700
- To: Martin Thomson <martin.thomson@gmail.com>
- Cc: "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
- Message-ID: <CABP7RbfA=ffutQM9gwVLZUM5Kpvjzc-K-nd+9QTaXMC4UaRtNw@mail.gmail.com>
Thanks for catching the missing ":" ... and yes, [":"] 1*header-char is a much better choice. -1 to adding any "nuance" or transformations, however. Let's be clear and strict about this: an HTTP/2 header field name ought to always match... period. LOWERALPHA = %x61-7A header-char = "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~" / DIGIT / LOWERALPHA header-name = [":"] 1*header-char We don't need any other options or "nuance" here. - James On Tue, Aug 13, 2013 at 3:20 PM, Martin Thomson <martin.thomson@gmail.com> wrote: > On 13 August 2013 23:08, James M Snell <jasnell@gmail.com> wrote: >> Recommend that we specify in both the HTTP/2 and Header Compression >> spec that header names MUST conform to: >> >> LOWERALPHA = %x61-7A >> header-name = "!" / "#" / "$" / "%" / "&" / "'" / >> "*" / "+" / "-" / "." / "^" / "_" / >> "`" / "|" / "~" / DIGIT / LOWERALPHA >> >> Which is the all-lower-case equivalent to the header-name definition >> currently in httpbis. > > Actually, it's: > LOWERALPHA = %x61-7A > header-char = "!" / "#" / "$" / "%" / "&" / "'" / > "*" / "+" / "-" / "." / "^" / "_" / > "`" / "|" / "~" / DIGIT / LOWERALPHA > header-name = (":" / header-char) *header-char > > though this might be better: > header-name = [":"] 1*header-char > > and if we're feeling especially generous: > header-name = 1*(":" / header-char) > > This sounds reasonable - though I think that this needs to be a little > more nuanced. Header compression might describe a transformation that > produces the limited set of values as described above, but the *input* > to header compression needs to be a valid HTTP header (or a special > HTTP/2.0 :-header).
Received on Tuesday, 13 August 2013 22:27:33 UTC