I was forced to update the Wiki to a later version of DokuWiki because it was badly misbehaving on the new server. It's now seemingly working again, but an unwanted side-effect of the update has been that the Syntax Highlighting of code snippets (which uses GeSHi) is no longer working.
I've no idea why it doesn't work. The custom BBC BASIC lexer bb4w.php is in the correct directory (wiki/vendor/geshi/geshi/src/geshi) but for some reason it isn't being picked up.
Can somebody who knows anything about GeSHi and/or DokuWiki help please?