; $Id: rfc2234-6.1.abnf 24 2007-10-13 20:36:23Z gotthardp $ ; ; Crocker, D. and P. Overell, ; "Augmented BNF for Syntax Specifications: ABNF", ; RFC 2234, ; November 1997. ; ; Copyright (C) The Internet Society (1997). All Rights Reserved. ; ; 6.1 Core Rules ; !syntax("abnf") ALPHA = %x41-5A / %x61-7A ; A-Z / a-z BIT = "0" / "1" CHAR = %x01-7F ; any 7-bit US-ASCII character, ; excluding NUL CR = %x0D ; carriage return CRLF = CR LF ; Internet standard newline CTL = %x00-1F / %x7F ; controls DIGIT = %x30-39 ; 0-9 DQUOTE = %x22 ; " (Double Quote) HEXDIG = DIGIT / "A" / "B" / "C" / "D" / "E" / "F" HTAB = %x09 ; horizontal tab LF = %x0A ; linefeed LWSP = *(WSP / CRLF WSP) ; linear white space (past newline) OCTET = %x00-FF ; 8 bits of data SP = %x20 ; space VCHAR = %x21-7E ; visible (printing) characters WSP = SP / HTAB ; white space ; 10. Full Copyright Statement ; ; Copyright (C) The Internet Society (1997). All Rights Reserved. ; ; This document and translations of it may be copied and furnished to ; others, and derivative works that comment on or otherwise explain it ; or assist in its implementation may be prepared, copied, published ; and distributed, in whole or in part, without restriction of any ; kind, provided that the above copyright notice and this paragraph are ; included on all such copies and derivative works. However, this ; document itself may not be modified in any way, such as by removing ; the copyright notice or references to the Internet Society or other ; Internet organizations, except as needed for the purpose of ; developing Internet standards in which case the procedures for ; copyrights defined in the Internet Standards process must be ; followed, or as required to translate it into languages other than ; English. ; ; The limited permissions granted above are perpetual and will not be ; revoked by the Internet Society or its successors or assigns. ; ; This document and the information contained herein is provided on an ; "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING ; TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ; BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION ; HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF ; MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.