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From Emmanuel Lecharny <elecha...@gmail.com>
Subject Re: Enhanced guide ?
Date Sat, 16 Dec 2006 14:01:28 GMT
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.



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