The following "TO DO" list is not exhaustive. The tasks have been listed by order of submission and are by no way sorted by priority or any other kind of criterion. This list is for internal use only and is given here just for information. In particular there is no implied commitment that these points will be implemented in future releases. 14 June 1997 . Add %option backupfile="filename" and corresponding command-line option. . Add a feature in DS_ARRAYED_LIST to get rid of garbage (i.e. old items at indexes count+1..capacity. 2 October 1999 . Add classes DS_SET and DS_TREE to the Gobo Eiffel Structure Library. . Allow strings in geyacc's rules. . Include Friedrich Dominicus (and Object Tools) formatter library.