java regex for alpha and spaces is including [ ] \
- by JayAvon
This is my regex for my JTextField to not be longer than x characters and to not include anything other than letters or spaces.  For some reason it is allowing [ ] and \ characters.  This is driving me crazy.  Is my regex wrong??
package com.jayavon.game.helper;
import java.awt.Toolkit;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.PlainDocument;
public class CharacterNameCreationDocument extends PlainDocument {
    private static final long serialVersionUID = 1L;
    private int limit;
    public CharacterNameCreationDocument(int limit) {
        super();
        this.limit = limit;
    }
    public void insertString(int offset, String  str, AttributeSet attr) throws BadLocationException {
        if (str == null || (getLength() + str.length()) > limit || !str.matches("[a-zA-z\\s]*")){
            Toolkit.getDefaultToolkit().beep();
            return;
        } else {
            super.insertString(offset, str, attr);
        }
    }
}