-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 and its
+[omega](http://xapian.org/docs/omega/overview.html) frontend.
+
+Ikiwiki will handle indexing new and changed page contents, using the
+[[cpan Search::Xapian]] perl modules. 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`.