Re: [apps-discuss] I-D Action: draft-ietf-appsawg-rfc5451bis-04.txt
Alessandro Vesely <vesely@tana.it> Thu, 23 May 2013 07:51 UTC
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Date: Thu, 23 May 2013 09:50:55 +0200
From: Alessandro Vesely <vesely@tana.it>
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Subject: Re: [apps-discuss] I-D Action: draft-ietf-appsawg-rfc5451bis-04.txt
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On Sat 18/May/2013 00:22:47 +0200 Scott Kitterman wrote: > > I believe the change from: > > authres-header = "Authentication-Results:" [CFWS] authserv-id > [ CFWS version ] Note that in bis-04 it is: authres-header = "Authentication-Results:" [CFWS] authserv-id [ [CFWS] authres-version ] The optional space allows: Authentication-Results: example.org1; none > to: > > authres-header = "Authentication-Results:" [CFWS] authserv-id > [ [CFWS] "/" [CFWS] authres-version ] > > is an incompatible change and if you really want to make it, you should bump > the version number. I checked and with authres, your example is mis-parsed. > > Authentication-Results: example.org/1; none > > In this example, the authserv-id is "example.org", but authres, using the RFC > 5451 ABNF parses this and determines the authserv-id is "example.org/1" > > If you want to make this change, I think it needs to be version 2 because an > existing version 1 parser can't parse the header field anymore. STD 68 specifies how to define a formal syntax, but that doesn't have to be a first-order syntax, so its parseability can depend on the semantics. The ABNF rules defined in the I-D don't lend themselves to automated generation of lexical analyzers: In order to parse the identifier and understand which ADMD it refers to, it is necessary to adhere to some naming convention, which is purposely left unspecified.
- [apps-discuss] I-D Action: draft-ietf-appsawg-rfc… internet-drafts
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… Scott Kitterman
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… Murray S. Kucherawy
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… John Levine
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… Murray S. Kucherawy
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… John R Levine
- [apps-discuss] Slash and version number in Authen… S Moonesamy
- Re: [apps-discuss] Slash and version number in Au… Scott Kitterman
- Re: [apps-discuss] Slash and version number in Au… Alexey Melnikov
- Re: [apps-discuss] Slash and version number in Au… Dave Cridland
- Re: [apps-discuss] Slash and version number in Au… Dave Cridland
- Re: [apps-discuss] Slash and version number in Au… Scott Kitterman
- Re: [apps-discuss] Slash and version number in Au… Dave Cridland
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… Alessandro Vesely
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… John Levine
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… Dave Crocker
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… Barry Leiba
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… Dave Crocker
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… John R Levine
- Re: [apps-discuss] I-D Action: draft-ietf-appsawg… Murray S. Kucherawy