First Sentence Regex

Question

I\'m after a regex ( php / perl compatible ) to get the first sentence out of some text. I realize this could get huge if covering every case, but just after something that

Answer 1

It isn't just a regex, but I wrote a Python function to do this: Separating sentences. Natural language processing is notoriously difficult, so there are cases this doesn't treat right, but it does handle some tricky cases well.