End Google Ads 201810 - BS.net 01 --> Hi,

What would be the best way to parse "tags" in a string? for example if I have a string like
string s = "Hello how are you blah blah ok thx bye"

And I would like to retrieve the someTag's and someTag2's content... etc?

Suggest me alternatives please..

The thing I want to do is a bit specific but might help to understand:
I have a small mail application and I would like to let the user to do something like this in the body (when composing a new message):
Hello this should be readed by all the reciepents
But this should be readed only by mail1 and mail2

But I don't want help with sending the message.. just with the tagging thing