Unicode character blocks in strings

I have a string containing a mix of Chinese and Latin characters, eg *|.Z'J%R+,H1N1,y7PZL. 
I wish to return a nodeset containing the following kind of structure:
 
 

  *|.Z'J%R+,
  H1N1 
  ,y7PZL

 
Where H1N1 falls into the BasicLatin unicode character block and the other two strings 
can be categorized as CJKUnifiedIdeographs.
 
Can anyone suggest the cleanest way to do this using XSLT 2? 
 
Tom
 
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