protected override IEnumerable <BFCommand> ParseByRow(string row)
{
BFCommand prevCommand = default;
for (int currentPos = 0; currentPos < row.Length;)
{
if (this.TryGetNextCommand(row, currentPos, out var command) && !prevCommand.IsBeginComment())
{
yield return(command);
prevCommand = command;
currentPos += command.Length;
continue;
}
else
{
command = this.GetTrivia(row, currentPos, prevCommand.IsBeginComment());
yield return(command);
prevCommand = command;
currentPos += command.Length;
continue;
}
}
}
public static bool IsExecutable(this BFCommand command)
{
return(!(command.IsUndefined() || command.IsTrivia() || command.IsBeginComment() || command.IsEndComment()));
}
