public static Expression Parse()
{
Expression result;
if (piece == "(")
{
NextPiece();
result = OperatorO.Parse();
if (piece == null)
{
throw new Exception("Sintax Error");
}
if (piece != ")")
{
throw new Exception("Sintax Error");
}
NextPiece();
}
else
{
result = KeyWord.Parse();
}
return(result);
}
public static Expression Analize(string source)
{
Expression.source = source;
index = 0;
NextPiece();
return(OperatorO.Parse());
}