RFC 2234

"Augmented BNF for Syntax Specifications: ABNF", November 1997

Canonical URL:

http://www.rfc-editor.org/rfc/rfc2234.txt
This document is also available in this non-normative format: PDF.

Status:

PROPOSED STANDARD

Obsoleted by:

RFC 4234

Authors:

D. Crocker, Ed.
P. Overell

Stream:

IETF

Source:

drums (app)

Please refer here for any errata for this document. To submit a new errata report, go to the main errata page.

Abstract

In the early days of the Arpanet, each specification contained its own definition of ABNF. This included the email specifications, RFC733 and then RFC822 which have come to be the common citations for defining ABNF. The current document separates out that definition, to permit selective reference. Predictably, it also provides some modifications and enhancements. [STANDARDS-TRACK]

For the definition of Stream, see RFC 4844.