multi-purpose search engine with spider, indexer and querying module. The strength of this package is to index all sorts of things (websites, file systems, files, databases tables, ...). feed the indexer with information, and later query it. features: Boolean search operators like + - (and, not). Search for "fixed names" (eg "Bill Gates"). Stemming, metaphone, soundex, fast part-word searches like foo*, foo*bar AND *foo. Foreign keys (for db-related indexes). Stopword lists (multilingual). built-in mime-type handlers for html, pdf, doc and xls, ...