FYI,
the is the lastest and bestest on ABNF now going out for last call.
Carl-Uno
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Detailed Revision/Update of Message
Standards Working Group of the IETF.
Title : Augmented BNF for Syntax Specifications: ABNF
Author(s) : D. Crocker, P. Overell
Filename : draft-ietf-drums-abnf-04.txt
Pages : 9
Date : 29-Sep-97
Internet technical specifications often need to define a format
syntax and are free to employ whatever notation their authors
deem useful. Over the years, a modified version of Backus-Naur
Form (BNF), called Augmented BNF (ABNF), has been popular among
many Internet specifications. It balances compactness and
simplicity, with reasonable representational power. 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.
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