public ReadResults Parse(IStringReader reader, DispatcherResources resources, out Anchor result)
        {
            result = default;
            int         start       = reader.GetCursor();
            ReadResults readResults = reader.ReadUnquotedString(out string anchor);

            if (!readResults.Successful)
            {
                return(readResults);
            }

            if (!resources.Anchors.Contains(anchor))
            {
                reader.SetCursor(start);
                return(ReadResults.Failure(CommandError.InvalidEntityAnchor(anchor).WithContext(reader)));
            }

            result = new Anchor(anchor);
            return(ReadResults.Success());
        }