public void ScanForLabels()
{
while (!Input.IsEnd())
{
if (Input.Peek().ASTType == AST.Classification.Label)
{
InterpreteLabel();
}
else
{
Input.Read();
}
}
Input.RecoverPosition(Input.Beginning);
LabelScanned = true;
}
private AST Maybe(params Parse[] parsers)
{
AST result = null;
int BackedUpPosition = Input.BackupPosition();
foreach (Parse parser in parsers)
{
result = parser();
if (result == null)
{
Input.RecoverPosition(BackedUpPosition);
continue;
}
else
{
return(result);
}
}
throw new UnexpectedTokenException("Unknown error happened. Please check the input array.");
}
