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RFC 4234, "Augmented BNF for Syntax Specifications: ABNF", October 2005

Note: This RFC has been obsoleted by RFC 5234

Source of RFC: IETF - NON WORKING GROUP
Area Assignment: app

Errata ID: 777
Status: Rejected
Type: Technical
Publication Format(s) : TEXT
Reported By: Zoltan Ordogh
Date Reported: 2006-09-18
Rejected by: Alexey Melnikov
Date Rejected: 2010-09-02

Section 3.4 says: 

   A range of alternative numeric values can be specified compactly,
   using dash ("-") to indicate the range of alternative values.  Hence:

         DIGIT       =  %x30-39

   is equivalent to:

         DIGIT       =  "0" / "1" / "2" / "3" / "4" / "5" / "6" /

                        "7" / "8" / "9"

It should say:

[not supplied]

Notes:

The word equivalent is correct only when US-ASCII character set is used, since:

DIGIT = %x30-39 ;
means any hexadecimal value between 0x30 and 0x39,

while

DIGIT = "0" / "1" / "2" / "3" / "4" / "5" / "6" / "7" / "8" / "9" ;
means any digit from 0 thru 9.

from pending
--VERIFIER NOTES--
As per Note in Section 2.3:

ABNF strings are case-insensitive and the character set for these
strings is us-ascii.

So these 2 representations *are* equivalent.

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