Carriage ParseCarriage(string carriageText)
{
var pieces = carriageText.Split('+');
var maybeCarriageFlair = pieces.First().Split(':');
var i = 1;
for (; i < maybeCarriageFlair.Length && !Constants.KnownFlair.Contains(maybeCarriageFlair[i]); i += 2)
{
}
i--;
var flair = string.Join(':', maybeCarriageFlair, 0, i);
if (i > 1)
{
flair += ":";
}
var riderBits = string.Join(':', maybeCarriageFlair, i, maybeCarriageFlair.Length - i);
var riderFullyReconstructed = string.Join('+', new[] { riderBits }.Concat(pieces.Skip(1)));
var carriage = new Carriage
{
Flairs = ParseCarriageFlairs(flair),
Riders = ParseRiders(riderFullyReconstructed)
};
return(carriage);
}
string FormatCarriage(Carriage carriage)
{
var rider = FormatRiders(carriage.Riders);
return($"{FormatCarriageFlairs(carriage.Flairs)}{rider}");
}