Parsing tweet with Regex in C#

This is a simple snippet which takes raw tweet text and converts it into a formatted tweet. Formatted tweet contains links to user handles, Links and Hashtags

	private string ParseTweet(string rawTweet)
	{
	Regex link = new Regex(@"http(s)?://([\w+?\.\w+])+([a-zA-Z0-9\~\!\@\#\$\%\^\&\*\(\)_\-\=\+\\\/\?\.\:\;\'\,]*)?");
	Regex screenName = new Regex(@"@\w+");
	Regex hashTag = new Regex(@"#\w+");
	string formattedTweet = link.Replace(rawTweet, delegate(Match m)
	{
	string val = m.Value;
	return "<a href='" + val + "'>" + val + "</a>";
	});
	formattedTweet = screenName.Replace(formattedTweet, delegate(Match m)
	{
	string val = m.Value.Trim('@');
	return string.Format("@<a href='http://twitter.com/{0}'>{1}</a>", val, val);
	});
	formattedTweet = hashTag.Replace(formattedTweet, delegate(Match m)
	{
	string val = m.Value;
	return string.Format("<a href='http://twitter.com/#search?q=%23{0}'>{1}</a>", val, val);
	});
	return formattedTweet;
	}

view raw FormatTweet.cs hosted with ❤ by GitHub