protected SubRange ParseSuffixRange(Tokenizer tokenizer)
{
tokenizer.Read(DASH);
var end = tokenizer.ReadLong();
return(SubRange.CreateOffsetFromEnd(end));
}
protected SubRange ParseRange(Tokenizer tokenizer)
{
if (tokenizer.IsNext(DASH))
{
return(ParseSuffixRange(tokenizer));
}
var start = tokenizer.ReadLong();
tokenizer.Read(DASH);
var end = tokenizer.TryReadLong();
return(end == null
? SubRange.CreateOffsetFromStart(start)
: SubRange.CreateClosedRange(start, end.Value));
}