On Mon, 18 Oct 2010, John C Klensin wrote: > --On Monday, October 18, 2010 9:53 AM -0700 "Murray S. > Kucherawy" <[email protected]> wrote: > > > It looks to me like there's an ABNF citation issue in RFC5321. > > Section 4.1.2's ABNF makes reference to "atext" but it's not > > defined anywhere. It is defined in RFC5322 though. > > Without taking the time to search the document, I believe that > there is a statement that any productions that cannot be found > are defined either in the base ABNF spec or in 5322.
4.1.2. Command Argument Syntax The syntax of the argument clauses of the above commands (using the syntax specified in RFC 5234 [7] where applicable) is given below. Some of the productions given below are used only in conjunction with source routes as described in Appendix C. Terminals not defined in this document, such as ALPHA, DIGIT, SP, CR, LF, CRLF, are as defined in the "core" syntax in Section 6 of RFC 5234 [7] or in the message format syntax in RFC 5322 [4]. The last sentence of that quote would be better if it were moved to section 2.4 General Syntax Principles and Transaction Model where ABNF is first mentioned. The metalinguistic notation used in this document corresponds to the "Augmented BNF" used in other Internet mail system documents. The reader who is not familiar with that syntax should consult the ABNF specification in RFC 5234 [7]. Metalanguage terms used in running text are surrounded by pointed brackets (e.g., <CRLF>) for clarity. The reader is cautioned that the grammar expressed in the metalanguage is not comprehensive. There are many instances in which provisions in the text constrain or otherwise modify the syntax or semantics implied by the grammar. Tony. -- f.anthony.n.finch <[email protected]> http://dotat.at/ HUMBER THAMES DOVER WIGHT PORTLAND: NORTH BACKING WEST OR NORTHWEST, 5 TO 7, DECREASING 4 OR 5, OCCASIONALLY 6 LATER IN HUMBER AND THAMES. MODERATE OR ROUGH. RAIN THEN FAIR. GOOD.
