[racket] pregexp to detect Japanese characters

I'm writing a function to detect Japanese characters in a
string. I found this page:



[1]http://www.localizingjapan.com/blog/2012/01/20/regular-expre
ssions-for-japanese-text/



So, for example, the example Perl regexp [\x{3041}-\x{3096}]
would detect Hiragana characters (as would \p{Hiragana}).  How
do I express such a Unicode range with Racket regexps?



I looked at the docs below and it wasn't obvious to me how to
do it.  In other languages there might be, for example, a
\xnnnn or \uxxxx construct.



[2]http://docs.racket-lang.org/reference/regexp.html#%28elem._%
28rxex._30%29%29



--

Geoffrey S. Knauth | http://knauth.org/gsk

References

1. http://www.localizingjapan.com/blog/2012/01/20/regular-expressions-for-japanese-text/
2. http://docs.racket-lang.org/reference/regexp.html#%28elem._%28rxex._30%29%29
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