public ExpressionTree FindRootTree(ExpressionTree expressionTree_2)
{
if (expressionTree_2.Parent != null)
{
do
{
expressionTree_2 = expressionTree_2.Parent;
} while (expressionTree_2.Parent != null);
}
return(expressionTree_2);
}
public void Init(string string_0)
{
string_0 = string_0.Replace(" ", "");
ParamList.Clear();
expressionTree_1 = BulidTree(null, string_0);
}
public ExpressionTree BulidTree(ExpressionTree expressionTree_2, string string_0)
{
int num2;
int num3;
ExpressionTree tree2;
ExpressionTree tree5;
string str2;
int num = 0;
if (!IsFuction(string_0, out num))
{
if (string_0[0] != '(')
{
ExpressionTree tree7;
int startIndex = 0;
num3 = 0;
while (num3 < string_0.Length)
{
ExpressionTree tree6;
if (method_0(string_0[num3]))
{
tree6 = new ExpressionTree
{
Tag = string.Format("{0}", string_0[num3])
};
if (num3 == 0)
{
str2 = null;
}
else
{
str2 = string_0.Substring(startIndex, num3 - startIndex);
}
tree7 = new ExpressionTree
{
Tag = str2
};
foreach (string str3 in str2.Split(new char[] { ',' }))
{
if (method_3(str3) && !ParamList.ContainsKey(str3))
{
ParamList.Add(str3, null);
}
}
if (expressionTree_2 == null)
{
tree6.LeftTree = tree7;
expressionTree_2 = tree6;
}
else if (method_2(tree6.Tag, expressionTree_2.Tag) == 1)
{
expressionTree_2.RightTree = tree6;
tree6.LeftTree = tree7;
expressionTree_2 = tree6;
}
else
{
expressionTree_2.RightTree = tree7;
if (expressionTree_2.Parent != null)
{
expressionTree_2.Parent.RightTree = tree6;
}
tree6.LeftTree = expressionTree_2;
expressionTree_2 = tree6;
}
break;
}
if (method_1(string_0[num3]))
{
char ch = string_0[num3];
string str4 = ch.ToString();
if (method_1(string_0[num3 + 1]))
{
ch = string_0[num3 + 1];
str4 = str4 + ch.ToString();
num3++;
}
tree6 = new ExpressionTree
{
Tag = str4
};
if (num3 == 0)
{
str2 = "0";
}
else
{
str2 = string_0.Substring(startIndex, num3 - startIndex);
}
tree7 = new ExpressionTree
{
Tag = str2
};
foreach (string str3 in str2.Split(new char[] { ',' }))
{
if (method_3(str3) && !ParamList.ContainsKey(str3))
{
ParamList.Add(str3, null);
}
}
if (expressionTree_2 == null)
{
tree6.LeftTree = tree7;
expressionTree_2 = tree6;
}
else if (method_2(tree6.Tag, expressionTree_2.Tag) == 1)
{
expressionTree_2.RightTree = tree6;
tree6.LeftTree = tree7;
expressionTree_2 = tree6;
}
else
{
expressionTree_2.RightTree = tree7;
if (expressionTree_2.Parent != null)
{
expressionTree_2.Parent.RightTree = tree6;
}
tree6.LeftTree = expressionTree_2;
expressionTree_2 = tree6;
}
break;
}
num3++;
}
if (num3 == string_0.Length)
{
tree7 = new ExpressionTree
{
Tag = string_0
};
if (expressionTree_2 == null)
{
expressionTree_2 = tree7;
}
else
{
expressionTree_2.RightTree = tree7;
}
foreach (string str3 in string_0.Split(new char[] { ',' }))
{
if (method_3(str3) && !ParamList.ContainsKey(str3))
{
ParamList.Add(str3, null);
}
}
return(FindRootTree(expressionTree_2));
}
string str5 = string_0.Substring(num3 + 1);
BulidTree(expressionTree_2, str5);
goto Label_0695;
}
num2 = 1;
num3 = 0;
tree2 = null;
for (num3 = 1; num3 < string_0.Length; num3++)
{
if (string_0[num3] == ')')
{
num2--;
if (num2 != 0)
{
continue;
}
string str = string_0.Substring(1, num3 - num - 1);
tree2 = BulidTree(null, str);
break;
}
if (string_0[num3] == '(')
{
num2++;
}
}
}
else
{
ExpressionTree tree = new ExpressionTree
{
Tag = string_0.Substring(0, num)
};
num2 = 1;
num3 = 0;
num3 = num + 1;
while (num3 < string_0.Length)
{
if (string_0[num3] == ')')
{
num2--;
if (num2 != 0)
{
goto Label_0064;
}
string[] strArray = string_0.Substring(num + 1, num3 - num - 1).Split(new char[] { ',' });
tree2 = BulidTree(null, strArray[0]);
tree.RightTree = tree2;
if (strArray.Length == 2)
{
ExpressionTree tree3 = BulidTree(null, strArray[1]);
tree.SecondTree = tree3;
}
break;
}
if (string_0[num3] == '(')
{
num2++;
}
Label_0064:
num3++;
}
if (num3 == string_0.Length - 1)
{
if (expressionTree_2 != null)
{
expressionTree_2.RightTree = tree;
}
else
{
expressionTree_2 = tree;
}
return(FindRootTree(expressionTree_2));
}
tree5 = new ExpressionTree();
tree5.Tag = string_0[num3 + 1].ToString();
if (expressionTree_2 != null)
{
if (method_2(tree5.Tag, expressionTree_2.Tag) == 1)
{
expressionTree_2.RightTree = tree5;
tree5.LeftTree = tree;
expressionTree_2 = tree5;
}
else
{
expressionTree_2.RightTree = tree;
if (expressionTree_2.Parent != null)
{
expressionTree_2.Parent.RightTree = tree5;
}
tree5.LeftTree = expressionTree_2;
expressionTree_2 = tree5;
}
}
else
{
tree5.LeftTree = tree;
expressionTree_2 = tree5;
}
str2 = string_0.Substring(num3 + 2);
BulidTree(expressionTree_2, str2);
goto Label_0695;
}
if (num3 == string_0.Length - 1)
{
if (expressionTree_2 != null)
{
expressionTree_2.RightTree = tree2;
}
else
{
expressionTree_2 = tree2;
}
return(FindRootTree(expressionTree_2));
}
tree5 = new ExpressionTree();
tree5.Tag = string_0[num3 + 1].ToString();
if (expressionTree_2 != null)
{
if (method_2(tree5.Tag, expressionTree_2.Tag) == 1)
{
expressionTree_2.RightTree = tree5;
tree5.LeftTree = tree2;
expressionTree_2 = tree5;
}
else
{
expressionTree_2.RightTree = tree2;
if (expressionTree_2.Parent != null)
{
expressionTree_2.Parent.RightTree = tree5;
}
tree5.LeftTree = expressionTree_2;
expressionTree_2 = tree5;
}
}
else
{
tree5.LeftTree = tree2;
expressionTree_2 = tree5;
}
str2 = string_0.Substring(num3 + 2);
BulidTree(expressionTree_2, str2);
Label_0695:
return(FindRootTree(expressionTree_2));
}