Вот мой код:
var match = Regex.Match(internalUrl,
@"^\/([\w|\/|\-|\,|\s]+)\.([a-zA-Z]{2,5})([\w|\/|\-|\,|\s]*)\??(.*)",
RegexOptions.IgnoreCase | RegexOptions.Singleline |
RegexOptions.CultureInvariant | RegexOptions.Compiled);
if (match.Success)
{
var filePath = match.Groups[1].Value;
var fileExtention = match.Groups[2].Value;
var pathInfo = match.Groups[3].Value;
var queryString = match.Groups[4].Value;
log.Debug("FilePath: " + filePath);
log.Debug("FileExtention: " + fileExtention);
log.Debug("PathInfo: " + pathInfo);
log.Debug("QueryString: " + queryString);
}