private static IEnumerable <char> ProcessLines(this IEnumerable <char> runes, CharLineTable lines)
{
char current = '\0';
foreach (var rune in runes)
{
lines.MoveToNext(current, rune);
yield return(rune);
current = rune;
}
lines.MoveToNext(current, '\0');
}
// LineTracking
public static IEnumerable <char> ProcessLines(this IEnumerable <char> runes, out CharLineTable lines)
{
lines = new CharLineTable();
return(ProcessLines(runes, lines));
}