# File lib/net/ldap/filter.rb, line 336
    def parse_ldap_filter(obj)
      case obj.ber_identifier
      when 0x87 # present. context-specific primitive 7.
        eq(obj.to_s, "*")
      when 0xa3 # equalityMatch. context-specific constructed 3.
        eq(obj[0], obj[1])
      else
        raise Net::LDAP::LdapError, "Unknown LDAP search-filter type: #{obj.ber_identifier}"
      end
    end