private static bool TryReadInt(SafeReader reader, out int step)
{
if (!reader.IsEmpty)
{
var a = reader.Current;
if (a >= '0' && a <= '9')
{
reader.MoveNext();
step = a - '0';
if (!reader.IsEmpty)
{
var b = reader.Current;
if (b >= '0' && b <= '9')
{
reader.MoveNext();
step = (step * 10) + (b - '0');
}
}
return(true);
}
}
step = 0;
return(false);
}