public override bool TryParse(Scanner scanner, out NoteValueNode result)
{
var anchor = scanner.MakeAnchor();
result = new NoteValueNode();
LiteralNode <BaseNoteValue> baseNoteValue;
if (!Parser.TryReadBaseNoteValue(scanner, this, out baseNoteValue))
{
this.Report(LogLevel.Error, scanner.LastReadRange, Messages.Error_NoteValueExpected);
result = null;
return(false);
}
result.Base = baseNoteValue;
if (scanner.Expect('/')) //tuplet
{
LiteralNode <int> tuplet;
if (!Parser.TryReadInteger(scanner, out tuplet))
{
this.Report(LogLevel.Error, scanner.LastReadRange, Messages.Error_TupletValueExpected);
result = null;
return(false);
}
if (!NoteValue.IsValidTuplet(tuplet.Value))
{
this.Report(LogLevel.Error, scanner.LastReadRange, Messages.Error_InvalidTuplet);
result = null;
return(false);
}
result.Tuplet = tuplet;
}
LiteralNode <NoteValueAugment> augment;
if (!Parser.TryReadNoteValueAugment(scanner, this, out augment))
{
result = null;
return(false);
}
result.Augment = augment;
result.Range = anchor.Range;
return(true);
}
