> [aci=<attrname>]
> <access> ::= [self]{<level>|<priv>}
> <level> ::= none | auth | compare | search | read | write
-> <priv> ::= {=|+|-}{w|r|s|c|x}+
+> <priv> ::= {=|+|-}{w|r|s|c|x|0}+
> <control> ::= [stop | continue | break]
where the <what> part selects the entries and/or attributes to which
!block table; colaligns="LRL"; coltags="EX,EX,N"; align=Center; \
title="Table 5.4: Access Levels"
Level Privileges Description
-none no access
+none =0 no access
auth =x needed to bind
compare =cx needed to compare
search =scx needed to apply search filters