regex for URL including query string

Question

I thought this would be a simple google search but apparently not. What is a regex I can use in C# to parse out a URL including any query string from a larger text

Answer 1

Use the ABNF at the end of RFC3986 as a starting point to get it right.

This uses them for URI validation in Python; not what you're looking for, but it should give an idea of the direction you should go in: http://gist.github.com/138549