适用于Unicode或特殊字符的Java Regex

Question

I have below statement in Javascript (NodeJS) -

const name = (name) =>
 name && !XRegExp('^[\\p{L}\'\\d][ \\p{L}\'\\d-]*[\\p{L}\'-\'\\d]$').test(name)
? 'Invalid' : undefined

This regex is for name can accept . , - and (space) and should start with character.

How can I achieve same validation regex in java. I tried below -

@Pattern(regexp = "^(?U)[\\p{L}\\'\\d][ \\p{L}\\'\\d-]*[\\p{L}\\'-\\'\\d]$" , 
message="Invalid name")
String name;

Answer 1

I'm guessing that maybe this expression might work, based on the one you have provided:

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

final String regex = "^[\\p{L}\\d'][ \\p{L}\\d'-]*[\\p{L}\\d'-]$";
final String string = "éééééé";

final Pattern pattern = Pattern.compile(regex, Pattern.UNICODE_CHARACTER_CLASS);
final Matcher matcher = pattern.matcher(string);

while (matcher.find()) {
    System.out.println("Full match: " + matcher.group(0));
    for (int i = 1; i <= matcher.groupCount(); i++) {
        System.out.println("Group " + i + ": " + matcher.group(i));
    }
}

DEMO