Не проходит последний пункт валидации

if(!reader.ready()){
                word += Character.toString(sym);
                if (word.trim().equals("world")) count++;
                break;
            }
            if(Character.toString(sym).matches("\\p{Punct}") || Character.toString(sym).equals(" ") || a == 13 || a == 10) {
             if (word.equals("world")) count++;
             word = "";
            }

public class Solution {
    public static void main(String[] args) throws Exception {
        BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));
        String fileName = buff.readLine();
        buff.close();

        FileReader fileReader = new FileReader(fileName);
        StringBuilder string = new StringBuilder();
        while (fileReader.ready()){
            int tmp = fileReader.read();
            string.append((char)tmp);
        }
        fileReader.close();

        String[] row = string.toString().split("\\W");
        int counter = 0;
        for (String str: row) {
            if (str.equals("world"))
                counter++;
        }
        System.out.println(counter);
    }
}

world,world,w
orld
helloworld,world
world , world , w
orld
hello world ,world