[Fwd: STD 68, RFC 5234 on Augmented BNF for Syntax Specifications: ABNF]

FYI.

(Sorry for the cross-posting, but I can't think of a single-best list to post to.)


-------- Original Message --------
Subject: STD 68, RFC 5234 on Augmented BNF for Syntax Specifications: ABNF
Date: Thu, 31 Jan 2008 17:24:14 -0800 (PST)
From: [email protected]
To: [email protected], [email protected]
CC: [email protected]


A new Request for Comments is now available in online RFC libraries.

         STD 68
         RFC 5234

         Title:      Augmented BNF for Syntax Specifications:
                     ABNF
         Author:     D. Crocker, Ed.,
                     P. Overell
         Status:     Standards Track
         Date:       January 2008
         Mailbox:    [email protected],
                     [email protected]
         Pages:      16
         Characters: 26359
         Obsoletes:  RFC4234
         See Also:   STD0068

         I-D Tag:    draft-crocker-rfc4234bis-01.txt

         URL:        http://www.rfc-editor.org/rfc/rfc5234.txt

Internet technical specifications often need to define a formal
syntax.  Over the years, a modified version of Backus-Naur Form
(BNF), called Augmented BNF (ABNF), has been popular among many
Internet specifications.  The current specification documents ABNF.
It balances compactness and simplicity with reasonable
representational power.  The differences between standard BNF and
ABNF involve naming rules, repetition, alternatives,
order-independence, and value ranges.  This specification also
supplies additional rule definitions and encoding for a core lexical
analyzer of the type common to several Internet specifications.
[STANDARDS TRACK]

This is now a Standard Protocol.

-- 

   Dave Crocker
   Brandenburg InternetWorking
   bbiw.net