Hi! It is long time ago since Nikerabbit installed Goylem a RTL testwiki. At that time I suggested the usage of BiDirectional characters to stabilize the common look and feel of pages as recent changes, etc.
It should be possible to obtain the same result by properly embed all objects and the delimiters (spaces or whatsoever) with directionality syntax.
An example is available at bug 36803#0
and http://en.wikipedia.org/?oldid=492307285#bugzilla ,