public void Test2()
{
InfixConvParser icp = new InfixConvParser();
string[] input = new string[]
{
"ln(a)*(b+cos(90))",
"a=12",
"b=13"
};
List <ExpressionItem> expected = new List <ExpressionItem>
{
new ExpressionItem(ItemType.Operation, Operation.Logarithm),
new ExpressionItem(ItemType.Bracket, Bracket.LeftBracket),
new ExpressionItem(ItemType.Number, 12),
new ExpressionItem(ItemType.Bracket, Bracket.RightBracket),
new ExpressionItem(ItemType.Operation, Operation.Multiply),
new ExpressionItem(ItemType.Bracket, Bracket.LeftBracket),
new ExpressionItem(ItemType.Number, 13),
new ExpressionItem(ItemType.Operation, Operation.Plus),
new ExpressionItem(ItemType.Operation, Operation.Cosine),
new ExpressionItem(ItemType.Bracket, Bracket.LeftBracket),
new ExpressionItem(ItemType.Number, 90),
new ExpressionItem(ItemType.Bracket, Bracket.RightBracket),
new ExpressionItem(ItemType.Bracket, Bracket.RightBracket),
};
List <ExpressionItem> actual = icp.Parse(input);
Assert.AreEqual(expected, actual);
}
public void Test()
{
/// Example:
/// Input: "a+b-100
/// a=12
/// b=13"
/// Returns: { (Number, 12), (Operation, Plus), (Number, 13),
/// (Operation, Minus), (Number, 100) }
/// </remarks>
InfixConvParser icp = new InfixConvParser();
string[] input = new string[]
{
"c-100",
"a=12",
"c=13"
};
List <ExpressionItem> expected = new List <ExpressionItem>
{
new ExpressionItem(ItemType.Number, 12),
new ExpressionItem(ItemType.Operation, Operation.Plus),
new ExpressionItem(ItemType.Number, 13),
new ExpressionItem(ItemType.Operation, Operation.Minus),
new ExpressionItem(ItemType.Number, 100)
};
List <ExpressionItem> actual = icp.Parse(input);
Assert.AreEqual(expected, actual);
}
public static void Show()
{
string pathToFolder = Directory.GetCurrentDirectory()
.Replace(@"bin\Debug", "") + @"FilesSecond\";
string[] text = File.ReadAllLines(pathToFolder + "input" + ".txt");
var parser = new InfixConvParser();
var parseText = parser.Parse(text);
var infixAlg = new InfixСonversion();
var postfix = infixAlg.InfixToPostfix(parseText);
var answer = infixAlg.CalculateValue(postfix);
var sb = new StringBuilder();
foreach (var e in postfix)
{
switch (e.Type)
{
case ItemType.Bracket:
if (e.BraketType == Bracket.LeftBracket)
{
sb.Append("(");
}
else if (e.BraketType == Bracket.RightBracket)
{
sb.Append(")");
}
break;
case ItemType.Number:
sb.Append(e.NumberValue);
break;
case ItemType.Operation:
switch (e.OperationType)
{
case Operation.Cosine:
sb.Append("cos");
break;
case Operation.Divide:
sb.Append(":");
break;
case Operation.Logarithm:
sb.Append("lg");
break;
case Operation.Minus:
sb.Append("-");
break;
case Operation.Multiply:
sb.Append("*");
break;
case Operation.Plus:
sb.Append("+");
break;
case Operation.Power:
sb.Append("^");
break;
case Operation.Sine:
sb.Append("sin");
break;
case Operation.SquareRoot:
sb.Append("sqrt");
break;
}
break;
}
sb.Append(" ");
}
var prefixStr = sb.ToString();
Console.WriteLine("Префиксная запись - " + text[0]);
for (int i = 1; i < text.Count(); i++)
{
Console.WriteLine(text[i]);
}
Console.WriteLine("Результат в постфиксной записи - " + prefixStr);
Console.WriteLine("Ответ: " + answer + ".");
}