Cleaned up the layout quite a bit to make Gemifying and including into Rails 3 less painful. Some steps to 1.9 compatibility

lib/net/ldap/filter.rb

@@ -408,7 +408,6 @@ class FilterParser #:nodoc:
   attr_reader :filter
 
   def initialize str
-    require 'strscan'
     @filter = parse( StringScanner.new( str )) or raise Net::LDAP::LdapError.new( "invalid filter syntax" )
   end