Re: ABNF tweak for draft-zeilenga-ldapbis-rfc2253-02

["Kurt D. Zeilenga" <Kurt@OpenLDAP.org>]

At 07:47 PM 12/18/00 -0500, rmoats@coreon.net wrote:
>Ok, I'll bite... what does ASCII have to do with this other 
>than extending the last range to FF...

Extending the range to FF is not sufficient.  The ISO-10646-1
character code range, IIRC, is 0x000000 - 0x7FFFFFFF.  When
presented as UTF-8, each character spans from 1 to 6 octets
(derived from RFC2849):

UTF8-CHAR                = ASCII / UTF8-2 / UTF8-3 /
                           UTF8-4 / UTF8-5 / UTF8-6
UTF8-1                   = %x80-BF
UTF8-2                   = %xC0-DF UTF8-1
UTF8-3                   = %xE0-EF 2UTF8-1
UTF8-4                   = %xF0-F7 3UTF8-1 
UTF8-5                   = %xF8-FB 4UTF8-1
UTF8-6                   = %xFC-FD 5UTF8-1
ASCII                    = %x00-7F

Your original suggestion would limit escaping to only ASCII
characters.  With the range extension, the escaping would
apply to the first octet of the character, not to the whole
character.

Kurt



>Ryan
>
>---- Original message ----
>>Date: Mon, 18 Dec 2000 16:03:33 -0800
>>From: "Kurt D. Zeilenga" <Kurt@OpenLDAP.org>
>>Subject: Re: ABNF tweak for draft-zeilenga-ldapbis-rfc2253-02
>>To: "Ryan Moats" <rmoats@coreon.net>
>>Cc: <ietf-ldapbis@OpenLDAP.org>
>>
>>At 11:33 AM 12/10/00 -0600, Ryan Moats wrote:
>>>I'd suggest
>>>
>>>   quotechar = %x00-%x21 / %x23-%x5B / %x5D-7F ; any 
>character except "\" or
>>>QUOTATION
>>
>>Note that any character is not restricted to ASCII.
>>
>>Kurt
>>