<!DOCTYPE html> <html> <head> <title></title> </head> <body><div>I'm writing a function to detect Japanese characters in a string. I found this page:<br></div> <div> </div> <div><span class="size" style="font-size:13.3333339691162px"><a href="http://www.localizingjapan.com/blog/2012/01/20/regular-expressions-for-japanese-text/">http://www.localizingjapan.com/blog/2012/01/20/regular-expressions-for-japanese-text/</a></span><br></div> <div> </div> <div>So, for example, the example Perl regexp <span class="font" style="font-family: menlo, consolas, "courier new", monospace, sans-serif;">[\x{3041}-\x{3096}]</span> would detect Hiragana characters (as would <span class="font" style="font-family: menlo, consolas, "courier new", monospace, sans-serif;">\p{Hiragana}</span>). How do I express such a Unicode range with Racket regexps?<br></div> <div> </div> <div>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 <span class="font" style="font-family: menlo, consolas, "courier new", monospace, sans-serif;">\xnnnn</span> or <span class="font" style="font-family: menlo, consolas, "courier new", monospace, sans-serif;">\uxxxx</span> construct.<br></div> <div> </div> <div><a href="http://docs.racket-lang.org/reference/regexp.html#%28elem._%28rxex._30%29%29">http://docs.racket-lang.org/reference/regexp.html#%28elem._%28rxex._30%29%29</a><br></div> <div> </div> <div>--<br></div> <div>Geoffrey S. Knauth | http://knauth.org/gsk<br></div> <div> </div> </body> </html>