OpenSearchServer is a powerful, enterprise-class, search engine program. Using its Web user interface, crawlers (Web, file, database, etc.), and REST/RESTFul API, you can integrate advanced full-text search capabilities into your application.
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This release has several improvements and bugfixes. One of the more interesting new features is the availability of an OpenSearchServer Drupal module. There are some interesting API improvements for file and Web crawling, as well as in the scheduler (with more information provided) and in the parser (with editable parameters). 2 very nice features have been added: a sitemap generator and the ability to export the search result of any query into a CSV file for further analysis. Last but not least, comprehensive online documentation has been released.
