At the present time, foreign language support for ChatScript is, at best, spotty. With multibyte characters, such as many Asian languages use (Chinese included), it’s simply unavailable. Bruce and I both have looked into this issue without much success (unless he’s recently found a solution). Bruce is certainly aware of the issue, but I’m not sure where it sits on his priority list.
For what it’s worth, the vast majority of chatbot engines have problems dealing with languages that the developers do not have at least a passing familiarity with, or, in fact, work with on a frequent basis. I’d love to get in contact with a C++ or PHP programmer who’s native and “working” language is Chinese, and try to learn from them how to work within the character sets they use. I’m sure I would learn a lot, regardless of whether I learn their language or not.
By the way, I humbly suggest that you not consider this to be the “final answer”, since my involvement with ChatScript’s development is minimal, at best. I’m just giving you my take on the issue here.