internal void Remove(XUri uri)
{
Remove(uri.GetSegments(UriPathFormat.Normalized), 0);
}
internal List <DreamFeature> Find(XUri uri)
{
return(Find(uri.GetSegments(UriPathFormat.Normalized), 0));
}
//--- Class Methods ---
private static void ParseFeatureSignature(XUri baseUri, string signature, out string[] pathSegments, out KeyValuePair <int, string>[] paramNames, out int optional)
{
List <string> segments = new List <string>(baseUri.GetSegments(UriPathFormat.Normalized));
List <KeyValuePair <int, string> > names = new List <KeyValuePair <int, string> >();
optional = 0;
// normalize and remove any leading and trailing '/'
signature = signature.ToLowerInvariant().Trim();
if ((signature.Length > 0) && (signature[0] == '/'))
{
signature = signature.Substring(1);
}
if ((signature.Length > 0) && (signature[signature.Length - 1] == '/'))
{
signature = signature.Substring(0, signature.Length - 1);
}
if (signature.Length > 0)
{
string[] parts = signature.Split('/');
// loop over all parts
for (int i = 0; i < parts.Length; ++i)
{
// check if part is empty (this only happens for "//")
if (parts[i].Length == 0)
{
// we found two slashes in a row; the next token MUST be the final token
if ((i != (parts.Length - 2)) || (parts[i + 1] != "*"))
{
throw new ArgumentException("invalid feature signature", signature);
}
optional = int.MaxValue;
break;
}
else
{
string part = parts[i].Trim();
if ((part.Length >= 2) && (part[0] == '{') && (part[part.Length - 1] == '}'))
{
// we have a path variable (e.g. /{foo}/)
if (optional != 0)
{
throw new ArgumentException("invalid feature signature", signature);
}
segments.Add(SysUtil.NameTable.Add("*"));
names.Add(new KeyValuePair <int, string>(baseUri.Segments.Length + i, SysUtil.NameTable.Add(part.Substring(1, part.Length - 2))));
}
else if (part == "*")
{
// we have a path wildcard (e.g. /*/)
if (optional != 0)
{
throw new ArgumentException("invalid feature signature", signature);
}
segments.Add(SysUtil.NameTable.Add(part));
names.Add(new KeyValuePair <int, string>(baseUri.Segments.Length + i, SysUtil.NameTable.Add(i.ToString())));
}
else if (part == "?")
{
// we have an optional path (e.g. /?/)
++optional;
segments.Add(SysUtil.NameTable.Add(part));
}
else
{
// we have a path constant (e.g. /foo/)
if (optional != 0)
{
throw new ArgumentException("invalid feature signature", signature);
}
segments.Add(SysUtil.NameTable.Add(part));
}
}
}
}
pathSegments = segments.ToArray();
paramNames = names.ToArray();
}
