How to select first instance in regex?

[ugakebet 4]

Hey guys, I use this for regex http://gskinner.com/RegExr/

 

 

Suppose I want to choose the first instance of a sentence

 

I use ([A-Z].*?[\.]) and it will select every sentence? Why?

 

 

Or if I use ([\w-\.]+)@((?:[\w]+\.)+)([a-zA-Z]{2,4}) to select email addresses, how do I limit this to choose only the first email address, and not all the e,ail addresses?

[Kreatus (Ubot Ninja) 422]

Try this

^[^.!?]*