Internationalization vs. Unicode

[Tyro[17]]

There are myriad encoding schemes. D natively supports Unicode and 
provide functionality via phobos. A byproduct of this is that since 
ASCII is a subset of Unicode, it also natively support ASCII. This is a 
plus for the language but what of the other encoding schemes? What 
library functionality is provided to manipulate or convert between those 
encoding schemes and Unicode?

I have a need to convert from CKJ encoding (presently EUC-JP and 
Shift-JIS) to Unicode. How do I accomplish this using D/Phobos? Is there 
a standalone library that does this? If so, can someone point me to it? 
If not, is there planned functionality for inclusion in phobos or am I 
doomed to resorting to Java or some other language to accomplish this 
task (or at least until I'm educated enough to do it myself)?

Thanks,
Andrew