MoinMoin

MoinMoin is a wiki engine implemented in Python, initially based on the PikiPiki wiki engine. Its name is a play on the North German greeting Moin, repeated as in WikiWiki. The MoinMoin code is licensed under the GNU General Public License v2, or (at the user's option) any later version (except some 3rd party modules that are licensed under other Free Software licenses compatible with the GPL).

Dozens of organizations use MoinMoin to run public wikis, including free software projects Ubuntu, Apache, Debian, FreeBSD.

Technical details

MoinMoin's storage mechanism is based on flat files and folders, rather than a database. This makes it easy to manipulate the content in a text editor on the server if necessary, including managing revisions if the wiki gets attacked by spammers .

MoinMoin supports plugins and can be extended via Macros and Actions. It also uses the idea of separate parsers (e.g. for parsing the wiki syntax) and formatters (e.g. for outputting HTML code) with a SAX-like interface between the two. The idea is that if you want to be able to output DocBook instead of HTML, you only need to write a docbook-formatter that implements the formatter interface, and all parsers that use the interface will automatically be supported.