бэкэнд метакаталога для slapd (metadirectory backend to slapd)
REWRITING
A string is rewritten according to a set of rules, called a
`rewrite context'. The rules are based on POSIX (''extended'')
regular expressions (regex) with substring matching; basic
variable substitution and map resolution of substrings is allowed
by specific mechanisms detailed in the following. The behavior
of pattern matching/substitution can be altered by a set of
flags.
The underlying concept is to build a lightweight rewrite module
for the slapd server (initially dedicated to the LDAP backend).