public TParsingTable(SSDT parent)
{
this.parent = parent;
}
static void Main(string[] args)
{
SSDT translator = new SSDT(
new string[] { "(", ")", "i", "-", "+", "*", "/" },
new string[] { "E", "T", "F" },
"E"
);
// Jesus f**k
translator.AddRule(
"E",
new List<string> { "T" },
(TransRule placeholder) =>
{ placeholder.head.attrVal = placeholder.body[0].attrVal; }
);
translator.AddRule(
"E",
new List<string> { "E", "+", "T" },
(TransRule placeholder) =>
{ placeholder.head.attrVal = placeholder.body[0].attrVal + placeholder.body[2].attrVal; }
);
translator.AddRule(
"E",
new List<string> { "E", "-", "T" },
(TransRule placeholder) =>
{ placeholder.head.attrVal = placeholder.body[0].attrVal - placeholder.body[2].attrVal; }
);
translator.AddRule(
"T",
new List<string> { "F" },
(TransRule placeholder) =>
{ placeholder.head.attrVal = placeholder.body[0].attrVal; }
);
translator.AddRule(
"T",
new List<string> { "T", "*", "F" },
(TransRule placeholder) =>
{ placeholder.head.attrVal = placeholder.body[0].attrVal * placeholder.body[2].attrVal; }
);
translator.AddRule(
"T",
new List<string> { "T", "/", "F" },
(TransRule placeholder) =>
{ placeholder.head.attrVal = placeholder.body[0].attrVal / placeholder.body[2].attrVal; }
);
translator.AddRule(
"F",
new List<string> { "i" },
(TransRule placeholder) =>
{ placeholder.head.attrVal = placeholder.body[0].attrVal; }
);
translator.AddRule(
"F",
new List<string> { "(", "E", ")" },
(TransRule placeholder) =>
{ placeholder.head.attrVal = placeholder.body[1].attrVal; }
);
translator.AddRule(
"F",
new List<string> { "-", "F" },
(TransRule placeholder) =>
{ placeholder.head.attrVal = (- placeholder.body[1].attrVal); }
);
//translator.AddRule(
// "E",
// new List<string> { "E", "+", "T" },
// (TransRule placeholder) =>
// { placeholder.head.attrVal = placeholder.body[0].attrVal + placeholder.body[2].attrVal; }
//);
//translator.AddRule(
// "E",
// new List<string> { "T" },
// (TransRule placeholder) =>
// { placeholder.head.attrVal = placeholder.body[0].attrVal; }
//);
//translator.AddRule(
// "T",
// new List<string> { "T", "*", "F" },
// (TransRule placeholder) =>
// { placeholder.head.attrVal = placeholder.body[0].attrVal * placeholder.body[2].attrVal; }
//);
//translator.AddRule(
// "T",
// new List<string> { "F" },
// (TransRule placeholder) =>
// { placeholder.head.attrVal = placeholder.body[0].attrVal; }
//);
//translator.AddRule(
// "F",
// new List<string> { "(", "E", ")" },
// (TransRule placeholder) =>
// { placeholder.head.attrVal = placeholder.body[1].attrVal; }
//);
//translator.AddRule(
// "F",
// new List<string> { "i" },
// (TransRule placeholder) =>
// { placeholder.head.attrVal = placeholder.body[0].attrVal; }
//);
// Plus test
System.Console.WriteLine(" 8 ? {0}", 8 == translator.Execute("5 + 3"));
System.Console.WriteLine(" 5 ? {0}", 5 == translator.Execute("5 + 0"));
// Minus test
System.Console.WriteLine(" 1 ? {0}", 1 == translator.Execute("3 - 2"));
System.Console.WriteLine(" 0 ? {0}", 0 == translator.Execute("1 - 1"));
// Multiplication test
System.Console.WriteLine("10 ? {0}", 10 == translator.Execute("5 * 2"));
System.Console.WriteLine(" 5 ? {0}", 5 == translator.Execute("5 * 1"));
System.Console.WriteLine(" 0 ? {0}", 0 == translator.Execute("5 * 0"));
// Division test
System.Console.WriteLine(" 2 ? {0}", 2 == translator.Execute("4 / 2"));
System.Console.WriteLine(" 4 ? {0}", 4 == translator.Execute("4 / 1"));
// Unary minus tests
System.Console.WriteLine("-1 ? {0}", -1 == translator.Execute("- 1"));
System.Console.WriteLine("-2 ? {0}", -2 == translator.Execute("- 1 * 2"));
// Complex behaviour test
System.Console.WriteLine(" 7 ? {0}", 7 == translator.Execute("5 + 1 * 2"));
System.Console.WriteLine(" 8 ? {0}", 8 == translator.Execute("( 5 - 1 ) * 2"));
System.Console.WriteLine("12 ? {0}", 12 == translator.Execute("( 5 - 3 ) * 2 * 3"));
System.Console.WriteLine(" 2 ? {0}", 2 == translator.Execute("( 5 + ( - 2 ) ) / 3 * 2"));
// Bigger integer test
System.Console.WriteLine("32 ? {0}", 32 == translator.Execute("30 + 2"));
System.Console.WriteLine("28 ? {0}", 28 == translator.Execute("30 - 2"));
System.Console.WriteLine("60 ? {0}", 60 == translator.Execute("30 * 2"));
System.Console.WriteLine(" 2 ? {0}", 2 == translator.Execute("30 / 15"));
}