Validate a file name on Windows

Question

public static boolean isValidName(String text)
{
    Pattern pattern = Pattern.compile(\"^[^/./\\\\:*?\\\"<>|]+$\");
    Matcher matcher = pattern.matcher(text         


        

Answer 1

Looks good. At least if we believe to this resource: http://msdn.microsoft.com/en-us/library/aa365247%28v=vs.85%29.aspx

But I'd simplify use the code. It is enough to look for one of these characters to say that the name is invalid, so:

public static boolean isValidName(String text)
{
    Pattern pattern = Pattern.compile("[^/./\\:*?\"<>|]");
    return !pattern.matcher(text).find();
}

This regex is simpler and will work faster.