http://qdbm.sourceforge.net/
QDBM is a database library which offer inverted index: http://qdbm.sourceforge.net/spex.html#odeumapi In other word, it can do the same thing as lucene. There is an application, Estraier, using QDBM as searching system. http://estraier.sourceforge.net/ Maybe we should discuss which one to use in Etoile. Yen-Ju
