JS - Regex for name

• The username should contain only alphabatic chars (a-z) up to 25 chars.


• The first and the last space should be removed.


• The username can be more then 1 word, not a limit for how many words the name counts

So the regex I am using now is almost valid, except that a username with 3 words or more isn't valid. And this should be valid.

Valid names can be:

1. Dennis


2. Dennis is


3. Dennis is cool


4. Dennis is the coolest


5. etc.. up to 25 chars because this is the max length.

This is the current regex I am using:

    var pattern = /^[a-z\u00C0-\u01FF]+([\s\.\-\']?[a-z\u00C0-\u01FF]+)? $/i;
    if (pattern.exec(uname) == null)
    {
       alert('Invalid name');
       return false;
    }

So how to adjust the regex to make it work for more words then 2 with a maximum length of 25 chars?