Hi, I am not a Chinese expert myself, but have been told that it is quite likely that U+FF0E would be generated instead of U+002E FULL STOP using a Chinese IME, in a context where both ideographs and Roman characters were in close proximity. This sounds defintely likely to happen if you have <CHINESE>.COM for example where <CHINESE> is made up of Han characters. If that is really the case, it could be useful to put U+FF0E in the same bag as U+3002 is in Nameprep. YA PS: here's what someone I work with sent me on this topic (along with an explanation on how easy it is to generate U+FF0E rather than U+002E while typing mixed Chinese and Roman on MS Windows): A plain Chinese user would use double wide roman characters in a context containing both ideographs and roman characters in close proximity, that's what my Chinese speaking coworkers tell me. I find evidence that double wide punctuation is used in ideograph dominated context, strangely even when embedded between single-wide roman: http://surf.sina.com.cn/cgi-bin/newlogin/regentry.cgi, near "Altavista" or http://www.taiwan.com/info_10.htm, near "Cookies". You can see clearly on sina.com or any other Chinese site that double wide punctuation is used exclusively in ideograph context.
