public MainPageViewModel()
{
Equation = "";
RPNConverter.ClearAll();
AddCharacterCommand = new RelayCommand<object>(x =>
{
Equation += x as string;
RPNConverter.AddToInputList(x as string);
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Equation)));
});
RemoveCharacterCommand = new RelayCommand(() =>
{
RemoveCharacterFromEquation();
RPNConverter.RemoveFromInputList();
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Equation)));
});
ClearAllCommand = new RelayCommand(() =>
{
Equation = "";
RPNConverter.ClearAll();
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Equation)));
});
}
internal double Calculate()
{
LexicalAnalyzer = new LexicalAnalyzer(Input);
RPNConverter = new RPNConverter(LexicalAnalyzer.Analyse());
RPNComputer = new RPNComputer(RPNConverter.Convert());
return(RPNComputer.Compute());
}
protected static void Succeeds(IList <Element> input, IList <Element> expected)
{
var rpnConverter = new RPNConverter();
rpnConverter.Convert(new List <Element>(input));
var output = rpnConverter.Rpn;
Assert.Equal(output.Count, expected.Count);
for (var i = 0; i < output.Count; ++i)
{
Assert.Equal(output[i], expected[i]);
}
}
private string GetResoult()
{
if (!RPNConverter.input.Any())
{
return("Input can't be empty!");
}
else if (RPNConverter.input.Count(x => x == "(") != RPNConverter.input.Count(x => x == ")"))
{
return("Each open parenthesis must be closed!");
}
else
{
return(RPNConverter.NormalToRPN());
}
}
protected static void Fails(IList <Element> input)
{
var rpnConverter = new RPNConverter();
Assert.Throws <ParserException>(() => { rpnConverter.Convert(new List <Element>(input)); });
}
public IActionResult Calculate([FromBody] Post post)
{
string tokens = RPNConverter.infixToRPN(post.Data.Split(" "));
return(Json(new { tokens = tokens, result = RPNEvaluator.CalculateRPN(tokens) }));
}