ABNF for draft-smith-ldapv3-filter-update-01.txt

["Ryan Moats" <rmoats@coreon.net>]

Mark, Tim-

Looking at the ABNF in draft-smith-ldapv3-filter-update-01.txt,
the only thing that needs updating are the attr, matchingrule, and
value rules, and these aren't that difficult to update...

        attr       = <AttributeDescription from Section 4.1.5 of [1]>
        matchingrule = <MatchingRuleId from Section 4.1.9 of [1]>
        value      = <AttributeValue from Section 4.1.6 of [1] encoded
				using valueencoding rule>
	  valueencoding = 1*(normal / escaped)
	  normal = %x01-27 / %x2b-5b / %x5d-7f
	  escaped = "\00" / "\2" ( "8" / "9" / "a" ) / "\5c"

At that point I'd change the following paragraph from 

   The value construct is as described in the corresponding section of
   [1] given above, except that if an AttributeValue contains any of the
   following characters

        Character       ASCII value
        ---------------------------
        *               0x2a
        (               0x28
        )               0x29
        \               0x5c
        NUL             0x00

   the character must be encoded as the backslash '\' character (ASCII
   0x5c) followed by the two hexadecimal digits representing the ASCII
   value of the encoded character. The case of the two hexadecimal
   digits is not significant.

To

   The valueencoding rule provides that the characters "*" (ASCII 0x2a),
   "(" (ASCII 0x28), ")" (ASCII 0x29), "\" (ASCII 0x5c), and NULL (ASCII
   0x00) are represented as the backslash "\" character (ASCII 0x5c)
   followed by the two hexadecimal digits representing the ASCII value
   of the encoded character.

The case insensitivity is handled in the ABNF.

Ryan Moats