Semantic MediaWiki (SMW) is a free extension of MediaWiki – the wiki-system powering Wikipedia – that helps to search, organise, tag, browse, evaluate, and share the wiki's content.
Comment résoudre le problème d'accent : à la fin il faut modifier le code ainsi : $retval = exec('/usr/bin/'.$graphcmd.' -Gcharset=latin1 -Tps '.$tmpfname.'|/usr/bin/convert -encoding \"Unicode \" ps:- png<sep/>
LiteratePrograms is a unique wiki where every article is simultaneously a document and a piece of code that you can view, download, compile, and run by simply using the "download code" tab at the top of every article. Sounds like my own extension, better!