What is the best regular expression to check if a string is a valid URL?

Over the past two days I totally rewrote my URL (actually IRI, internationalized) pattern to comply with RFC 3987 ( http://www.faqs.org/rfcs/rfc3987.html ). These are in PCRE syntax.

If using . NET, use System.Uri. TryCreate, not a regex.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.