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swiftchinese-locale

How can I check if a string contains Chinese in Swift?

I want to know that how can I check if a string contains Chinese in Swift?

For example, I want to check if there's Chinese inside:

var myString = "Hi! 大家好！It's contains Chinese!"

Thanks!

Solution

  • This answer to How to determine if a character is a Chinese character can also easily be translated from Ruby to Swift (now updated for Swift 3):

    extension String {
    var containsChineseCharacters: Bool {
        return self.range(of: "\\p{Han}", options: .regularExpression) != nil
    }
}

if myString.containsChineseCharacters {
    print("Contains Chinese")
}

    In a regular expression, "\p{Han}" matches all characters with the "Han" Unicode property, which – as I understand it – are the characters from the CJK languages.