Xapian is a search engine library, scalable to collections containing hundreds of millions of documents. It's written in C++ with bindings for Perl, Python, PHP, Java, Tcl, C#, Ruby, and Lua. It is a highly adaptable toolkit that allows developers to easily add advanced indexing and search facilities to their own applications. It supports the Probabilistic Information Retrieval model and also a rich set of boolean query operators. Omega is a Web search application built upon the Xapian library. It can index a Web server's document tree (including HTML, PDF, OpenOffice, MS Word/Excel/Powerpoint/Works, WordPerfect, RTF, PS, etc.), or data exported from arbitrary sources (e.g. SQL databases).
CodeKit is an interface to a universal database code table. It takes all of the programming work out of maintaining multiple database code definition sets. A single code administration page lets you define new virtual code tables and enter all codes and their descriptions. Perl and PHP classes retrieve the code descriptions and automatically generate HTML code selection elements.
BabelKit is an interface to a universal multilingual database code table. It takes all of the programming work out of maintaining multiple database code definition sets in multiple languages. The code administration and translation page lets developers define new virtual code tables, new languages, enter all codes and their descriptions, and then translate them into all languages of interest. Perl and PHP classes retrieve the code descriptions and automatically generate HTML code selection elements in the user's language. This makes internationalization and localization of Web sites and database interfaces much easier.
cgi_buffer is a group of libraries that may be used to improve performance of CGI scripts (and other content generation engines) in some circumstances by applying performance-enhancing HTTP mechanisms that are typically not supported by them. Currently, Perl, Python, and PHP4 are supported. The Python library may also be used as a wrapper around another CGI script.