Java Matcher indexOfRegex(String text, String regex)

//package com.java2s;

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

public class Main {
    public static int indexOfRegex(String text, String regex) {
        Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE);
        Matcher matcher = pattern.matcher(text);

        int index = -1;

        if (matcher.find()) {
            index = matcher.start();
        }

        return index;
    }
}