Java 正则表达式不匹配(俄语)

Question

尝试匹配字符串“Манихина Галина Владимировна”和其他相同格式的字符串。也就是三个字的专有名词。我是正则表达式的新手，不确定我的陈述有什么问题。

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Test {
    public static void main(String [] args){
        String temp = "Манихина Галина Владимировна";
        Pattern pattern = Pattern.compile("^[а-я]+\\s[а-я]+\\s[а-я]+$", Pattern.CASE_INSENSITIVE);
        Matcher matcher = pattern.matcher(temp);
        if (matcher.find()){
            System.out.println(matcher.group(0));
        }
    }
}

Answer 1

根据 Java documentation文档正则表达式与 unicode 不匹配:

By default, case-insensitive matching assumes that only characters in the US-ASCII charset are being matched

为了使您的代码正常工作，请添加 UNICODE_CASE标志:

Pattern pattern = Pattern.compile("^[а-я]+\\s[а-я]+\\s[а-я]+$",
    Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE);