internal object Evaluate(object[] variables, out bool evaluated)
{
evaluated = true;
ListStack evaluationstack = new ListStack();
for (int j = 0; j < ExpressionStack.Count; j++)
{
Expression e = ExpressionStack[j];
if (e.Valuable)
{
VariableExpression v = e as VariableExpression;
if (v != null)
{
e = new ConstExpression(variables[v.Ordinal]);
}
evaluationstack.Push(e);
}
else
{
Expression[] values = new Expression[e.ArgumentsCount];
if (ExpressionStack.Count < e.ArgumentsCount)
{
throw new EvaluateException("Syntax Error");
}
for (int i = e.ArgumentsCount - 1; i >= 0; i--)
{
values[i] = evaluationstack.Pop();
}
evaluated = true;
Expression[] ret = e.Evaluate(values, out evaluated);
if (evaluated && ret != null)
{
for (int i = 0; i < ret.Length; i++)
{
evaluationstack.Push(ret[i]);
}
}
else
{
break;
}
}
}
if (evaluated)
{
if (evaluationstack.Count == 1)
{
if (evaluationstack[0].NumericValue.HasValue)
{
return(evaluationstack[0].NumericValue.Value);
}
else if (evaluationstack[0].BoolValue.HasValue)
{
return(evaluationstack[0].BoolValue.Value);
}
else if (evaluationstack[0].ArrayValue != null)
{
return(evaluationstack[0].ArrayValue);
}
else if (evaluationstack[0].DataTimeValue != null)
{
return(evaluationstack[0].DataTimeValue);
}
else if (evaluationstack[0].StringValue != null)
{
return(evaluationstack[0].StringValue);
}
else
{
return(null);
}
}
else
{
throw new EvaluateException("Syntax Error");
}
}
else
{
return(null);
}
}
private void DoParse(IEnumerator <Token> input)
{
InitializeTab();
Stack <Token> ts = new Stack <Token>();
List <Token> tokens = new List <Token>();
ts.Push(new BareToken(TokenKind.End));
ts.Push(new NonterminalSymbol(NonterminalSymbolKind.C));
input.MoveNext();
Token c = input.Current;
tokens.Add(c);
Token X;
while (true)
{
X = ts.Pop();
if (X.Kind == TokenKind.End)
{
break;
}
else if (X.Kind == TokenKind.Translation)
{
TranslationSymbol ns = (TranslationSymbol)X;
Expression e3 = null;
Expression e2 = null;
Expression e1 = null;
switch (ns.KindTR)
{
case TranslationSymbolKind.PlusOperator:
case TranslationSymbolKind.MinusOperator:
case TranslationSymbolKind.MultiplyOperator:
case TranslationSymbolKind.DivideOpearator:
case TranslationSymbolKind.PowerOperator:
case TranslationSymbolKind.GreaterOperator:
case TranslationSymbolKind.GreaterOrEqualOperator:
case TranslationSymbolKind.LessOperator:
case TranslationSymbolKind.LessOrEqualOperator:
case TranslationSymbolKind.EqualOperator:
case TranslationSymbolKind.NotEqualOperator:
case TranslationSymbolKind.AndOperator:
case TranslationSymbolKind.OrOperator:
case TranslationSymbolKind.MaxOperator:
case TranslationSymbolKind.MinOperator:
case TranslationSymbolKind.LogOperator:
case TranslationSymbolKind.RoundOperator:
case TranslationSymbolKind.BusulfanCalculationOperator:
e2 = es.Pop();
break;
case TranslationSymbolKind.AvgOperator:
case TranslationSymbolKind.StdOperator:
case TranslationSymbolKind.CVOperator:
case TranslationSymbolKind.AgeOfThePatientOperator:
e3 = e2;
e2 = es.Pop();
e1 = es.Pop();
break;
}
e1 = es.Pop();
Expression ex = null;
switch (ns.KindTR)
{
case TranslationSymbolKind.PlusOperator:
ex = BinaryExpression.trySimplify(
new PlusExpression(e1, e2), es);
break;
case TranslationSymbolKind.MinusOperator:
ex = BinaryExpression.trySimplify(
new MinusExpression(e1, e2), es);
break;
case TranslationSymbolKind.MultiplyOperator:
ex = BinaryExpression.trySimplify(
new MultiplyExpression(e1, e2), es);
break;
case TranslationSymbolKind.DivideOpearator:
ex = BinaryExpression.trySimplify(
new DivideExpression(e1, e2), es);
break;
case TranslationSymbolKind.PowerOperator:
ex = BinaryExpression.trySimplify(
new PowerExpression(e1, e2), es);
break;
case TranslationSymbolKind.SqrtOperator:
ex = UnaryExpression.trySimplify(
new SqrtExpression(e1), es);
break;
case TranslationSymbolKind.Log10Operator:
ex = UnaryExpression.trySimplify(
new Log10Expression(e1), es);
break;
case TranslationSymbolKind.SinOperator:
ex = UnaryExpression.trySimplify(
new SinExpression(e1), es);
break;
case TranslationSymbolKind.CosOperator:
ex = UnaryExpression.trySimplify(
new CosExpression(e1), es);
break;
case TranslationSymbolKind.TanOperator:
ex = UnaryExpression.trySimplify(
new TanExpression(e1), es);
break;
case TranslationSymbolKind.AbsOperator:
ex = UnaryExpression.trySimplify(
new AbsExpression(e1), es);
break;
case TranslationSymbolKind.AcosOperator:
ex = UnaryExpression.trySimplify(
new AcosExpression(e1), es);
break;
case TranslationSymbolKind.AsinOperator:
ex = UnaryExpression.trySimplify(
new AsinExpression(e1), es);
break;
case TranslationSymbolKind.AtanOperator:
ex = UnaryExpression.trySimplify(
new AtanExpression(e1), es);
break;
case TranslationSymbolKind.CeilingOperator:
ex = UnaryExpression.trySimplify(
new CeilingExpression(e1), es);
break;
case TranslationSymbolKind.CoshOperator:
ex = UnaryExpression.trySimplify(
new CoshExpression(e1), es);
break;
case TranslationSymbolKind.ExpOperator:
ex = UnaryExpression.trySimplify(
new ExpExpression(e1), es);
break;
case TranslationSymbolKind.FloorOperator:
ex = UnaryExpression.trySimplify(
new FloorExpression(e1), es);
break;
case TranslationSymbolKind.MaxOperator:
ex = BinaryExpression.trySimplify(
new MaxExpression(e1, e2), es);
break;
case TranslationSymbolKind.MinOperator:
ex = BinaryExpression.trySimplify(
new MinExpression(e1, e2), es);
break;
case TranslationSymbolKind.RoundOperator:
ex = BinaryExpression.trySimplify(
new RoundExpression(e1, e2), es);
break;
case TranslationSymbolKind.LogOperator:
ex = BinaryExpression.trySimplify(
new LogExpression(e1, e2), es);
break;
case TranslationSymbolKind.SinhOperator:
ex = UnaryExpression.trySimplify(
new SinhExpression(e1), es);
break;
case TranslationSymbolKind.TanhOperator:
ex = UnaryExpression.trySimplify(
new TanhExpression(e1), es);
break;
case TranslationSymbolKind.TruncateOperator:
ex = UnaryExpression.trySimplify(
new TruncateExpression(e1), es);
break;
case TranslationSymbolKind.UnaryMinusOperator:
ex = UnaryExpression.trySimplify(
new UnaryMinusExpression(e1), es);
break;
case TranslationSymbolKind.GreaterOperator:
ex = BinaryExpression.trySimplify(
new GreterExpression(e1, e2), es);
break;
case TranslationSymbolKind.LessOperator:
ex = BinaryExpression.trySimplify(
new LessExpression(e1, e2), es);
break;
case TranslationSymbolKind.LessOrEqualOperator:
ex = BinaryExpression.trySimplify(
new LessOrEqualExpression(e1, e2), es);
break;
case TranslationSymbolKind.EqualOperator:
ex = BinaryExpression.trySimplify(
new EqualExpression(e1, e2), es);
break;
case TranslationSymbolKind.NotEqualOperator:
ex = BinaryExpression.trySimplify(
new NotEqualExpression(e1, e2), es);
break;
case TranslationSymbolKind.GreaterOrEqualOperator:
ex = BinaryExpression.trySimplify(
new GreaterOrEqualExpression(e1, e2), es);
break;
case TranslationSymbolKind.NegativeOperator:
ex = UnaryExpression.trySimplify(
new NegativExpression(e1), es);
break;
case TranslationSymbolKind.AndOperator:
ex = BinaryExpression.trySimplify(
new AndExpression(e1, e2), es);
break;
case TranslationSymbolKind.OrOperator:
ex = BinaryExpression.trySimplify(
new OrExpression(e1, e2), es);
break;
case TranslationSymbolKind.IfOperator:
ex = UnaryExpression.trySimplify(
new IfElseExpression(e1, true), es);
break;
case TranslationSymbolKind.ElseOperator:
ex = UnaryExpression.trySimplify(
new IfElseExpression(e1, false), es);
break;
case TranslationSymbolKind.ForEachOperator:
ex = UnaryExpression.trySimplify(
new ForEachExpression(e1), es);
break;
case TranslationSymbolKind.CountItemsOperator:
ex = UnaryExpression.trySimplify(
new CountItemsExpression(e1), es);
break;
case TranslationSymbolKind.CheckOperator:
ex = UnaryExpression.trySimplify(
new CheckExpression(e1), es);
break;
/*case TranslationSymbolKind.AvgOperator:
* ex = ThreeArgumentsExpression.trySimplify(
* new AvgExpression(e1, e2, e3), es.Stack));
* break;
* case TranslationSymbolKind.StdOperator:
* ex = ThreeArgumentsExpression.trySimplify(
* new StdExpression(e1, e2, e3), es.Stack));
* break;
* case TranslationSymbolKind.CVOperator:
* ex = ThreeArgumentsExpression.trySimplify(
* new CVExpression(e1, e2, e3), es.Stack));
* break;
* case TranslationSymbolKind.AgeOfThePatientOperator:
* ex = ThreeArgumentsExpression.trySimplify(
* new AgeOfThePatientExpression(e1, e2, e3), es.Stack));
* break;
* case TranslationSymbolKind.IsNotNullOperator:
* ex = UnaryExpression.trySimplify(
* new IsNotNullExpression(e2, (ILogic)operators[OperatorKind.Logic]), es.Stack));
* break;
* case TranslationSymbolKind.IsNullOperator:
* ex = UnaryExpression.trySimplify(
* new IsNullExpression(e1), es));
* break;
* case TranslationSymbolKind.BusulfanCalculationOperator:
* ex = BinaryExpression.trySimplify(
* new BusulfanCalculationExpression(e1, e2, (IFunction)operators[OperatorKind.Function]), es.Stack));
* break;
* case TranslationSymbolKind.ConvertToDaysOperator:
* ex = UnaryExpression.trySimplify(
* new ConvertToDaysExpression(e2), es.Stack));
* break;
* case TranslationSymbolKind.SumColOperator:
* ex = UnaryExpression.trySimplify(
* new SumColExpression(e2), es.Stack));
* break;
* case TranslationSymbolKind.SumRowOperator:
* ex = UnaryExpression.trySimplify(
* new SumRowExpression(e2), es.Stack));
* break;
* case TranslationSymbolKind.AvgWksOperator:
* ex = UnaryExpression.trySimplify(
* new AvgWksExpression(e2), es.Stack));
* break;
* case TranslationSymbolKind.SumWksOperator:
* ex = UnaryExpression.trySimplify(
* new SumWksExpression(e2), es.Stack));
* break;
* case TranslationSymbolKind.CountSigOperator:
* ex = UnaryExpression.trySimplify(
* new CountSigExpression(e2), es.Stack));
* break;
* case TranslationSymbolKind.SumOperator:
* ex = UnaryExpression.trySimplify(
* new SumExpression(e2), es.Stack));
* break;
*/
}
if (ex != null)
{
es.Push(ex);
}
}
else if (X.Kind == TokenKind.Nonterminal)
{
LinkedList <Token> lst;
if ((lst = M[(int)c.Kind, (int)((NonterminalSymbol)X).KindNT])
!= null)
{
LinkedListNode <Token> nd = lst.Last;
while (nd != null)
{
ts.Push(nd.Value);
nd = nd.Previous;
}
}
else
{
throw new ParseErrorException
("Unexpected token: " + c.Kind + ".");
}
}
else
{
if (X.Kind == c.Kind)
{
Expression ex = null;
switch (c.Kind)
{
case TokenKind.Double:
ex = new ConstExpression(((DoubleToken)c).Value);
break;
case TokenKind.String:
ex = new ConstExpression(((StringToken)c).Value);
break;
case TokenKind.DateTime:
ex = new ConstExpression(((DateTimeToken)c).Value);
break;
case TokenKind.Variable:
ex = new VariableExpression(((VariableToken)c).Name);
break;
case TokenKind.E:
ex = new ConstExpression(Math.E);
break;
case TokenKind.PI:
ex = new ConstExpression(Math.PI);
break;
case TokenKind.RightBrace:
ex = new RightBraceExpression();
break;
}
if (ex != null)
{
es.Push(ex);
}
input.MoveNext();
Token prev = c;
c = input.Current;
tokens.Add(c);
if (previoustoken.ContainsKey(c.Group))
{
bool find = false;
foreach (TokenGroup group in previoustoken[c.Group])
{
if (prev.Group == group)
{
find = true;
break;
}
}
if (!find)
{
throw new ParseErrorException
("UnExpected " + prev.Group + " - " + c.Group + ".");
}
}
}
else
{
throw new ParseErrorException
("Expected " + X.Kind + ", got " + c.Kind + ".");
}
}
}
es.SetVariablesOrdinal();
}