environment MediaWiki, Axiom
problem Integration like R Extension missing
solution Download this and put it into your extensions/ directory.
Edit LocalSettings.php and append require_once('extensions/Axiomext.php'); at the end.
links Apperently they support a different Wiki
credits Thanks to Bill Page and Martin Rubey.
Story
Just incase, ISA 2006 filters umlauts in URLs by default. As I use umlauts in my page titles in MediaWiki, I just got HTTP 500 internal server error message. The important hint that led to my solution was the mentioning of HTTPFilter in the error message.
Environment ISA 2006, Web Site Publishing, MediaWiki
Symptom Wiki pages with umlauts don't work.
Reason ISA 2006 filters umlauts in URLs.
Solution Properties of "Web Publish Rule", Traffic, Filtering, (uncheck Verify normalization, Block high bit characters)
R extensions for MediaWiki are pretty cool
If you run into an error starting with /invalidfont in findfont.
Reason ghostscript-gnu installed
Solution ghostscript-gnu uninstalled, ghoscript-gpl installed
If you want to use output="display" make sure you but a pdf(rpdf) into your R block (this tells R to write the pdf to the appropriate place)