Space before sentence and after sentence?

Need help, ive got this script:

<input type="text" name="lastnamename" pattern="[^\s]*" title="Delete space before or after sentence!" style="text-transform:uppercase" required>

THis pattern "[^\s]*" shows every spaces which has been made in sentence _Adam_Sandler_ i need pattern which shows only _Adam Sandler_ these spaces BEFORE SENTENCE, AND AFTER SENTENCE.