private void GetSegments(string route)
{
var rx = new Regex(@"^(?<isToken>{)?(?(isToken)(?<isGreedy>\*?))(?<name>[a-zA-Z0-9-_]+)(?(isToken)})$", RegexOptions.Compiled | RegexOptions.Singleline);
foreach (string segment in route.Split('/'))
{
// segment must not be empty
if (string.IsNullOrEmpty(segment))
{
throw new ArgumentException("Route URL is invalid. Sequence \"//\" is not allowed.", "url");
}
if (rx.IsMatch(segment))
{
var m = rx.Match(segment);
var s = new RouteSegment
{
IsToken = m.Groups["isToken"].Value.Length.Equals(1),
IsGreedy = m.Groups["isGreedy"].Value.Length.Equals(1),
Name = m.Groups["name"].Value
};
_segments.AddLast(s);
_hasGreedy |= s.IsGreedy;
continue;
}
throw new ArgumentException("Route URL is invalid.", "url");
}
}