private static IEnumerable <RegExInputRange> SplitRange(RegExInputRange range, IEnumerable <char> splitPoints)
{
if (range.Min == range.Max)
{
yield return(range);
yield break;
}
var pending = range;
foreach (var p in splitPoints)
{
if (p > pending.Max)
{
break;
}
if ((p > range.Min) && (p < pending.Max))
{
var sub = new RegExInputRange((char)pending.Min, (char)(p - 1));
yield return(sub);
pending = new RegExInputRange(p, (char)pending.Max);
if (pending.Min == pending.Max)
{
yield return(pending);
yield break;
}
}
}
yield return(pending);
}
private static void Transition(NfaState from, NfaState to, RegExInputRange via)
{
from.Map.Add(new KeyValuePair <RegExInputRange, NfaState>(via, to));
}