public static RuleSet ParseRules(this IInputLines lines)
{
var twoByTwo = ImmutableArray.CreateBuilder <Rule>();
var threeByThree = ImmutableArray.CreateBuilder <Rule>();
foreach (var line in lines.AsString())
{
var split = line.Split("=>", StringSplitOptions.TrimEntries);
var length = split[0].Length;
var rules = ParseRule(split[0], split[1])
.Distinct();
if (length == 5)
{
twoByTwo.AddRange(rules);
}
else if (length == 11)
{
threeByThree.AddRange(rules);
}
}
return(new RuleSet(
twoByTwo.ToImmutable(),
threeByThree.ToImmutable()));
}
public static Graph ParseGraph(this IInputLines lines)
{
var links = new Dictionary <string, List <string> >();
foreach (var line in lines.AsString())
{
var split = line.Split('-', StringSplitOptions.TrimEntries);
AddEdge(links, split[0], split[1]);
}
return(new Graph(links));
public static string[] AsArray(this IInputLines lines) => lines.AsString().ToArray();
