public static object Evaluate(string expression, _7Sharp.AdditionalFunctionEventHandler handler)
{
ExpressionEval expressionEval = new ExpressionEval(expression);
expressionEval.AdditionalFunctionEventHandler += handler;
return(expressionEval.Evaluate());
}
private object EvaluateList()
{
ArrayList expressionlist = (ArrayList)this._expressionlist.Clone();
for (int index = 0; index < expressionlist.Count; ++index)
{
if (expressionlist[index] is ExpressionEval.UnaryOp)
{
expressionlist[index] = ExpressionEval.PerformUnaryOp((ExpressionEval.UnaryOp)expressionlist[index], expressionlist[index + 1]);
expressionlist.RemoveAt(index + 1);
}
}
ExpressionEval.BinaryOpQueue binaryOpQueue = new ExpressionEval.BinaryOpQueue(expressionlist);
string str = "";
int index1 = 1;
while (index1 < expressionlist.Count)
{
if (expressionlist[index1] is ExpressionEval.BinaryOp)
{
if (index1 + 1 == expressionlist.Count)
{
throw new ArgumentException("Expression cannot end in a binary operation: [" + expressionlist[index1].ToString() + "]");
}
}
else
{
str += string.Format("\n{0} [?] {1}", expressionlist[index1 - 1] is string?(object)("\"" + expressionlist[index1 - 1] + "\"") : expressionlist[index1 - 1], expressionlist[index1] is string?(object)("\"" + expressionlist[index1] + "\"") : expressionlist[index1]);
--index1;
}
index1 += 2;
}
if (str != "")
{
throw new ArgumentException("Missing binary operator: " + str);
}
for (ExpressionEval.BinaryOp binaryOp = binaryOpQueue.Dequeue(); binaryOp != null; binaryOp = binaryOpQueue.Dequeue())
{
int index2 = expressionlist.IndexOf((object)binaryOp);
expressionlist[index2 - 1] = ExpressionEval.PerformBinaryOp((ExpressionEval.BinaryOp)expressionlist[index2], expressionlist[index2 - 1], expressionlist[index2 + 1]);
expressionlist.RemoveAt(index2);
expressionlist.RemoveAt(index2);
}
return(!(expressionlist[0] is IExpression) ? expressionlist[0] : ((IExpression)expressionlist[0]).Evaluate());
}
private static object PerformBinaryOp(ExpressionEval.BinaryOp op, object v1, object v2)
{
IExpression expression1 = v1 as IExpression;
if (expression1 != null)
{
v1 = expression1.Evaluate();
}
IExpression expression2 = v2 as IExpression;
if (expression2 != null)
{
v2 = expression2.Evaluate();
}
switch (op.Op)
{
case "!=":
case "+":
case "-":
case "<":
case "<=":
case "=":
case "==":
case ">":
case ">=":
return(ExpressionEval.DoSpecialOperator(op, v1, v2));
case "%":
return((object)(Convert.ToInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) % Convert.ToInt64(v2, (IFormatProvider)CultureInfo.CurrentCulture)));
case "&":
return((object)(ulong)((long)Convert.ToUInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) & (long)Convert.ToUInt64(v2, (IFormatProvider)CultureInfo.CurrentCulture)));
case "&&":
return((object)(bool)(!Convert.ToBoolean(v1, (IFormatProvider)CultureInfo.CurrentCulture) ? false : (Convert.ToBoolean(v2, (IFormatProvider)CultureInfo.CurrentCulture) ? true : false)));
case "*":
return((object)(Convert.ToDouble(v1, (IFormatProvider)CultureInfo.CurrentCulture) * Convert.ToDouble(v2, (IFormatProvider)CultureInfo.CurrentCulture)));
case "/":
return((object)(Convert.ToDouble(v1, (IFormatProvider)CultureInfo.CurrentCulture) / Convert.ToDouble(v2, (IFormatProvider)CultureInfo.CurrentCulture)));
case "<<":
return((object)(Convert.ToInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) << Convert.ToInt32(v2, (IFormatProvider)CultureInfo.CurrentCulture)));
case ">>":
return((object)(Convert.ToInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) >> Convert.ToInt32(v2, (IFormatProvider)CultureInfo.CurrentCulture)));
case "^":
return((object)(ulong)((long)Convert.ToUInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) ^ (long)Convert.ToUInt64(v2, (IFormatProvider)CultureInfo.CurrentCulture)));
case "|":
return((object)(ulong)((long)Convert.ToUInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) | (long)Convert.ToUInt64(v2, (IFormatProvider)CultureInfo.CurrentCulture)));
case "||":
return((object)(bool)(Convert.ToBoolean(v1, (IFormatProvider)CultureInfo.CurrentCulture) ? true : (Convert.ToBoolean(v2, (IFormatProvider)CultureInfo.CurrentCulture) ? true : false)));
default:
throw new ArgumentException("Binary Operator " + op.Op + "not defined.");
}
}
private int NextToken(int nIdx)
{
Match match1 = (Match)null;
object obj = (object)null;
Match match2 = DefinedRegex.WhiteSpace.Match(this.Expression, nIdx);
if (match2.Success && match2.Index == nIdx)
{
return(nIdx + match2.Length);
}
Match match3 = DefinedRegex.Parenthesis.Match(this.Expression, nIdx);
if (match3.Success)
{
match1 = match3;
}
if (match1 == null || match1.Index > nIdx)
{
Match match4 = DefinedRegex.Function.Match(this.Expression, nIdx);
if (match4.Success && (match1 == null || match4.Index < match1.Index))
{
match1 = match4;
}
}
if (match1 == null || match1.Index > nIdx)
{
Match match4 = DefinedRegex.Variable.Match(this.Expression, nIdx);
if (match4.Success && (match1 == null || match4.Index < match1.Index))
{
match1 = match4;
obj = (object)new ExpressionEval.Variable(match4.Groups["Variable"].Value, this._variables);
}
}
if (match1 == null || match1.Index > nIdx)
{
Match match4 = DefinedRegex.UnaryOp.Match(this.Expression, nIdx);
if (match4.Success && (match1 == null || match4.Index < match1.Index))
{
match1 = match4;
obj = (object)new ExpressionEval.UnaryOp(match4.Value);
}
}
if (match1 == null || match1.Index > nIdx)
{
Match match4 = DefinedRegex.Hexadecimal.Match(this.Expression, nIdx);
if (match4.Success && (match1 == null || match4.Index < match1.Index))
{
match1 = match4;
obj = (object)Convert.ToInt32(match4.Value, 16);
}
}
if (match1 == null || match1.Index > nIdx)
{
Match match4 = DefinedRegex.Boolean.Match(this.Expression, nIdx);
if (match4.Success && (match1 == null || match4.Index < match1.Index))
{
match1 = match4;
obj = (object)bool.Parse(match4.Value);
}
}
if (match1 == null || match1.Index > nIdx)
{
Match match4 = DefinedRegex.DateTime.Match(this.Expression, nIdx);
if (match4.Success && (match1 == null || match4.Index < match1.Index))
{
match1 = match4;
obj = (object)Convert.ToDateTime(match4.Groups["DateString"].Value, (IFormatProvider)CultureInfo.CurrentCulture);
}
}
if (match1 == null || match1.Index > nIdx)
{
Match match4 = DefinedRegex.TimeSpan.Match(this.Expression, nIdx);
if (match4.Success && (match1 == null || match4.Index < match1.Index))
{
match1 = match4;
obj = (object)new TimeSpan(int.Parse("0" + match4.Groups["Days"].Value), int.Parse(match4.Groups["Hours"].Value), int.Parse(match4.Groups["Minutes"].Value), int.Parse("0" + match4.Groups["Seconds"].Value), int.Parse("0" + match4.Groups["Milliseconds"].Value));
}
}
if (match1 == null || match1.Index > nIdx)
{
Match match4 = DefinedRegex.Numeric.Match(this.Expression, nIdx);
if (match4.Success && (match1 == null || match4.Index < match1.Index))
{
while (match4.Success && (match4.Value ?? "") == "")
{
match4 = match4.NextMatch();
}
if (match4.Success)
{
match1 = match4;
obj = (object)double.Parse(match4.Value, (IFormatProvider)CultureInfo.CurrentCulture);
}
}
}
if (match1 == null || match1.Index > nIdx)
{
Match match4 = DefinedRegex.String.Match(this.Expression, nIdx);
if (match4.Success && (match1 == null || match4.Index < match1.Index))
{
match1 = match4;
obj = (object)match4.Groups["String"].Value.Replace("\\\"", "\"");
}
}
if (match1 == null || match1.Index > nIdx)
{
Match match4 = DefinedRegex.BinaryOp.Match(this.Expression, nIdx);
if (match4.Success && (match1 == null || match4.Index < match1.Index))
{
match1 = match4;
obj = (object)new ExpressionEval.BinaryOp(match4.Value);
}
}
if (match1 == null)
{
throw new ArgumentException("Invalid expression construction: \"" + this.Expression + "\".");
}
if (match1.Index != nIdx)
{
throw new ArgumentException("Invalid token in expression: [" + this.Expression.Substring(nIdx, match1.Index - nIdx).Trim() + "]");
}
int index;
if (match1.Value == "(" || match1.Value.StartsWith("$"))
{
index = match1.Index + match1.Length;
int num = 1;
bool flag = false;
while (num > 0)
{
if (index >= this.Expression.Length)
{
throw new ArgumentException("Missing " + (flag ? "\"" : ")") + " in Expression");
}
if (!flag && this.Expression[index] == ')')
{
--num;
}
if (!flag && this.Expression[index] == '(')
{
++num;
}
if (this.Expression[index] == '"' && (index == 0 || this.Expression[index - 1] != '\\'))
{
flag = !flag;
}
++index;
}
if (match1.Value == "(")
{
ExpressionEval expressionEval = new ExpressionEval(this.Expression.Substring(match1.Index + 1, index - match1.Index - 2));
// ISSUE: reference to a compiler-generated field
if (this.AdditionalFunctionEventHandler != null)
{
// ISSUE: reference to a compiler-generated field
expressionEval.AdditionalFunctionEventHandler += this.AdditionalFunctionEventHandler;
}
expressionEval._variables = this._variables;
this._expressionlist.Add((object)expressionEval);
}
else
{
FunctionEval functionEval = new FunctionEval(this.Expression.Substring(match1.Index, index - match1.Index));
// ISSUE: reference to a compiler-generated field
if (this.AdditionalFunctionEventHandler != null)
{
// ISSUE: reference to a compiler-generated field
functionEval.AdditionalFunctionEventHandler += this.AdditionalFunctionEventHandler;
}
functionEval._variables = this._variables;
this._expressionlist.Add((object)functionEval);
}
}
else
{
index = match1.Index + match1.Length;
this._expressionlist.Add(obj);
}
return(index);
}
private object ExecuteFunction(string name, object[] p)
{
object[] parameters = (object[])null;
if (p != null)
{
parameters = (object[])p.Clone();
for (int index = 0; index < parameters.Length; ++index)
{
if (parameters[index] is IExpression)
{
parameters[index] = ((IExpression)parameters[index]).Evaluate();
}
}
}
switch (name.ToLower(CultureInfo.CurrentCulture))
{
case "abs":
return((object)Math.Abs(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "acos":
return((object)Math.Acos(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "adddays":
return((object)Convert.ToDateTime(parameters[0]).AddDays((double)Convert.ToInt32(parameters[1])));
case "addhours":
return((object)Convert.ToDateTime(parameters[0]).AddHours((double)Convert.ToInt32(parameters[1])));
case "addminutes":
return((object)Convert.ToDateTime(parameters[0]).AddMinutes((double)Convert.ToInt32(parameters[1])));
case "addmonths":
return((object)Convert.ToDateTime(parameters[0]).AddMonths(Convert.ToInt32(parameters[1])));
case "addseconds":
return((object)Convert.ToDateTime(parameters[0]).AddSeconds((double)Convert.ToInt32(parameters[1])));
case "addyears":
return((object)Convert.ToDateTime(parameters[0]).AddYears(Convert.ToInt32(parameters[1])));
case "asin":
return((object)Math.Asin(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "atan":
return((object)Math.Atan(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "case":
return(FunctionEval.Case(parameters));
case "cdatetime":
return((object)Convert.ToDateTime(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture));
case "cdbl":
return((object)Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture));
case "ciel":
return((object)Math.Ceiling(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "cint":
return((object)Convert.ToInt32(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture));
case "clong":
return((object)Convert.ToInt64(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture));
case "cos":
return((object)Math.Cos(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "cosh":
return((object)Math.Cosh(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "cot":
return((object)(1.0 / Math.Tan(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture))));
case "csc":
return((object)(1.0 / Math.Sin(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture))));
case "cuint":
return((object)Convert.ToUInt32(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture));
case "culong":
return((object)Convert.ToUInt64(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture));
case "currentuserid":
return((object)WindowsIdentity.GetCurrent().Name.ToLower());
case "e":
return((object)Math.E);
case "exp":
return((object)Math.Exp(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "expr":
ExpressionEval expressionEval = new ExpressionEval(string.Concat(parameters[0]));
// ISSUE: reference to a compiler-generated field
expressionEval.AdditionalFunctionEventHandler += this.AdditionalFunctionEventHandler;
expressionEval._variables = this._variables;
return(expressionEval.Evaluate());
case "floor":
return((object)Math.Floor(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "fmtdate":
return((object)Convert.ToDateTime(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture).ToString(string.Concat(parameters[1]), (IFormatProvider)CultureInfo.CurrentCulture));
case "fmtnum":
return((object)Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture).ToString(string.Concat(parameters[1]), (IFormatProvider)CultureInfo.CurrentCulture));
case "iif":
return(FunctionEval.Iif(parameters));
case "log":
return((object)(parameters.Length > 1 ? Math.Log(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture), Convert.ToDouble(parameters[1], (IFormatProvider)CultureInfo.CurrentCulture)) : Math.Log(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture))));
case "log10":
return((object)Math.Log10(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "max":
return((object)Math.Max(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture), Convert.ToDouble(parameters[1], (IFormatProvider)CultureInfo.CurrentCulture)));
case "maxdate":
return((object)DateTime.MaxValue);
case "min":
return((object)Math.Min(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture), Convert.ToDouble(parameters[1], (IFormatProvider)CultureInfo.CurrentCulture)));
case "mindate":
return((object)DateTime.MinValue);
case "monthname":
return((object)new DateTime(2000, Convert.ToInt32(parameters[0]), 1).ToString("MMMM"));
case "now":
return((object)DateTime.Now);
case "pi":
return((object)Math.PI);
case "pow":
return((object)Math.Pow(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture), Convert.ToDouble(parameters[1], (IFormatProvider)CultureInfo.CurrentCulture)));
case "round":
return((object)(parameters.Length > 1 ? Math.Round(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture), Convert.ToInt32(parameters[1], (IFormatProvider)CultureInfo.CurrentCulture)) : Math.Round(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture))));
case "sec":
return((object)(1.0 / Math.Cos(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture))));
case "sin":
return((object)Math.Sin(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "sinh":
return((object)Math.Sinh(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "sqrt":
return((object)Math.Sqrt(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "str":
return((object)parameters[0].ToString());
case "tan":
return((object)Math.Tan(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "tanh":
return((object)Math.Tanh(Convert.ToDouble(parameters[0], (IFormatProvider)CultureInfo.CurrentCulture)));
case "today":
return((object)DateTime.Today);
default:
return(this.AdditionalFunctionHelper(name, parameters));
}
}
private object[] GetParameters(Match m)
{
int index1 = m.Index + m.Length;
int num = 1;
int startIndex = 0;
bool flag1 = false;
ArrayList arrayList = new ArrayList();
while (num > 0)
{
if (index1 >= this.Expression.Length)
{
throw new ArgumentException("Missing ')' in Expression");
}
if (!flag1 && this.Expression[index1] == ')')
{
--num;
}
if (!flag1 && this.Expression[index1] == '(')
{
++num;
}
if (this.Expression[index1] == '"' && (index1 == 0 || this.Expression[index1 - 1] != '\\'))
{
flag1 = !flag1;
}
if (num > 0)
{
++index1;
}
}
string str = this.Expression.Substring(m.Index + m.Length, index1 - (m.Index + m.Length));
if ((str ?? "") == "")
{
return((object[])null);
}
bool flag2 = false;
int index2;
for (index2 = 0; index2 < str.Length; ++index2)
{
if (!flag2 && str[index2] == ')')
{
--num;
}
if (!flag2 && str[index2] == '(')
{
++num;
}
if (str[index2] == '"' && (index2 == 0 || str[index2 - 1] != '\\'))
{
flag2 = !flag2;
}
if (!flag2 && num == 0 && str[index2] == ',')
{
arrayList.Add((object)str.Substring(startIndex, index2 - startIndex));
startIndex = index2 + 1;
}
}
arrayList.Add((object)str.Substring(startIndex, index2 - startIndex));
for (int index3 = 0; index3 < arrayList.Count; ++index3)
{
ExpressionEval expressionEval = new ExpressionEval(arrayList[index3].ToString());
// ISSUE: reference to a compiler-generated field
expressionEval.AdditionalFunctionEventHandler += this.AdditionalFunctionEventHandler;
expressionEval._variables = this._variables;
arrayList[index3] = (object)expressionEval;
}
return(arrayList.ToArray());
}
public BinaryOp(string strOp)
{
this._strOp = strOp;
this._nPrecedence = ExpressionEval.OperatorPrecedence(strOp);
}