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Posted to dev@directory.apache.org by Emmanuel Lecharny <el...@gmail.com> on 2006/12/16 13:37:29 UTC
Enhanced guide ?
Hi Ldap buddies,
is someone on this list can tell me what this "Enhanced Guide" (and it's
obsolete form, "Guide") is good for ? I guess that it was a kind of help
for clients, but I don't see how it can be used ...
Any insight welcome !
Emmanuel
Re: Enhanced guide ?
Posted by Emmanuel Lecharny <el...@gmail.com>.
Ersin Er a écrit :
> What is Enhanced Guide? Where is it?
http://tools.ietf.org/html/rfc4517
chapter 3.3.10 :
3.3.10. Enhanced Guide
A value of the Enhanced Guide syntax suggests criteria, which consist
of combinations of attribute types and filter operators, to be used
in constructing filters to search for entries of particular object
classes. The Enhanced Guide syntax improves upon the Guide syntax by
allowing the recommended depth of the search to be specified.
The LDAP-specific encoding of a value of this syntax is defined by
the following ABNF:
EnhancedGuide = object-class SHARP WSP criteria WSP
SHARP WSP subset
object-class = WSP oid WSP
subset = "baseobject" / "oneLevel" / "wholeSubtree"
criteria = and-term *( BAR and-term )
and-term = term *( AMPERSAND term )
term = EXCLAIM term /
attributetype DOLLAR match-type /
LPAREN criteria RPAREN /
true /
false
match-type = "EQ" / "SUBSTR" / "GE" / "LE" / "APPROX"
true = "?true"
false = "?false"
BAR = %x7C ; vertical bar ("|")
AMPERSAND = %x26 ; ampersand ("&")
EXCLAIM = %x21 ; exclamation mark ("!")
The <SHARP>, <WSP>, <oid>, <LPAREN>, <RPAREN>, <attributetype>, and
<DOLLAR> rules are defined in [RFC4512 <http://tools.ietf.org/html/rfc4512>].
The LDAP definition for the Enhanced Guide syntax is:
( 1.3.6.1.4.1.1466.115.121.1.21 DESC 'Enhanced Guide' )
Example:
person#(sn$EQ)#oneLevel
The Enhanced Guide syntax corresponds to the EnhancedGuide ASN.1 type
from [X.520 <http://tools.ietf.org/html/rfc4517#ref-X.520>]. The EnhancedGuide type references the Criteria ASN.1
type, also from [X.520 <http://tools.ietf.org/html/rfc4517#ref-X.520>]. The <true> rule, above, represents an empty
"and" expression in a value of the Criteria type. The <false> rule,
above, represents an empty "or" expression in a value of the Criteria
type.
Re: Enhanced guide ?
Posted by Ersin Er <er...@gmail.com>.
What is Enhanced Guide? Where is it?
On 12/16/06, Emmanuel Lecharny <el...@gmail.com> wrote:
>
> Hi Ldap buddies,
>
> is someone on this list can tell me what this "Enhanced Guide" (and it's
> obsolete form, "Guide") is good for ? I guess that it was a kind of help
> for clients, but I don't see how it can be used ...
>
> Any insight welcome !
>
> Emmanuel
>
--
Ersin