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The Class of SimplifiedChineseEnvironment has not been completed in Squeak 4.3.
I have tried to add some methods according to Janppenese Environment. Chinese characters display well as normal strings.
Thers are some problems when recovering changes using CNGBTextConveter.
I am not sure which kind of TextConverter should be choosed. Becourse there are several textConverter classes processing Chinese characters, eg CNGBTextConverter , UTF16TextConverterand UTF8TextConverter.