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The ldapfilter.conf file contains information used by the LDAP filtering routines.
Blank lines and lines that begin with a hash character ('#') are treated as comments and ignored. The configuration information consists of lines that contain one to five tokens. Tokens are separated
by white space, and double quotes can be used to include white space inside a token.
The file consists of a sequence of one or more filter sets. A filter set begins with a line containing a single token called a tag.
The filter set consists of a sequence of one or more filter lists. The first line in a filter list must contain four or five tokens: the value pattern,
the delimiter list, a filter template, a match description, and an optional search scope. The value pattern is a regular expression that is
matched against the value passed to the LDAP library call to select the filter list.
The delimiter list is a list of the characters (in the form of a single string) that can be used to break the value into distinct
words.
The filter template is used to construct an LDAP filter (see description below)
The match description is returned to the caller along with a filter as a piece of text that can be used to describe the sort of LDAP search that
took place. It should correctly compete both of the following phrases: "One match description match was found for..." and "Three match description matches were found for...."
The search scope is optional, and should be one of "base", "onelevel", or "subtree". If search scope is not provided, the default is "subtree".
The remaining lines of the filter list should contain two or three tokens, a filter template, a match description and an optional search scope .
The filter template is similar in concept to a printf(3C) style format string. Everything is taken literally except for the character sequences:
-
%v
- Substitute the entire value string in place of the %v.
-
%v$
- Substitute the last word in this field.
-
%vN
- Substitute word N in this field (where N is a single digit
1-9). Words are numbered from left to right within the value starting at 1.
-
%vM-N
- Substitute the indicated sequence of words where M and N
are both single digits 1-9.
-
%vN-
- Substitute word N through the last word in value where N is again a single digit 1-9.
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