Tangentially, I recently wrote code to support Arabic ordinal suffixes and was frustrated to learn that, despite a unicode standard specifically for Arabic, it is more acceptable to use the English language rules.
I vaguely remember this being done for FEZ back in the day. Funnily enough, the same is true for a number of cross-platform frameworks. One that sticks out was a port of David Cage game (which was largely written in lua) and making huge progress on porting the runtime from PS3 to PC.