* wikitext - wikitext, as usual
* javascript - user provided javascript code
+* json - simple implementation for use by extensions, etc.
* css - user provided css code
* text - plain text
There are some new globals that can be used to control the behavior of the ContentHandler facility:
-* $wgContentHandlers associates content model IDs with the names of the appropriate ContentHandler subclasses.
+* $wgContentHandlers associates content model IDs with the names of the appropriate ContentHandler subclasses
+ or callbacks that create an instance of the appropriate ContentHandler subclass.
* $wgNamespaceContentModels maps namespace IDs to a content model that should be the default for that namespace.