Use regular expression to match ANY Chinese character in utf-8 encoding

Question

For example, I want to match a string consisting of m to n Chinese characters, then I can use:

[single Chinese character regular expression]{m,n} 

Is there some regular expression of a single Chinese character, which could be any Chinese characters that exists?

Answer 1

The regex to match a Chinese (well, CJK) character is

\p{script=Han} 

which can be appreviated to simply

\p{Han} 

This assumes that your regex compiler meets requirement RL1.2 Properties from UTS#18 Unicode Regular Expressions. Perl and Java 7 both meet that spec, but many others do not.

Answer 2

In Java,

\p{InCJK_UNIFIED_IDEOGRAPHS}{1,3}