-This plugin is included in ikiwiki, but is not enabled by default. It adds
-full text search to ikiwiki, using the [[HyperEstraier]] engine.
+[[template id=plugin name=search author="[[Joey]]"]]
+[[tag type/useful]]
-It's possible to configure HyperEstraier via one of ikiwiki's
-[[templates]], but for most users, no configuration should be needed aside from enabling the plugin.
+This plugin adds full text search to ikiwiki, using the
+[xapian](http://xapian.org/) engine, its
+[omega](http://xapian.org/docs/omega/overview.html) frontend,
+and the [[cpan Search::Xapian]] perl module. (The [[cpan HTML::Scrubber]]
+perl module will also be used, if available.)
+
+Ikiwiki will handle indexing new and changed page contents. Note that it
+indexes page contents before they are preprocessed and converted to html,
+as this tends to produce less noisy search results. Also, since it only
+indexes page contents, files copied by the [[rawhtml]] plugin will not be
+indexed, nor will other types of data files.
+
+There is one setting you may need to use in the config file. `omega_cgi`
+should point to the location of the omega cgi program. The default location
+is `/usr/lib/cgi-bin/omega/omega`.