public static void Main(string[] args)
{
var transformer = new EquationProcessor.EquationTransformer();
if (args == null || args.Length != 1)
{
Console.WriteLine("Interactive mode. Press Ctrl+C to exit");
while (true)
{
var line = Console.ReadLine();
try
{
var result = transformer.Tranform(new Equation(line));
Console.WriteLine($"{line} => {result.ToString()}");
}
catch (Exception exception)
{
Console.WriteLine($"Unable to transform: {exception.Message}");
}
}
}
else
{
Console.WriteLine("File mode:");
var file = args[0];
if (!File.Exists(file))
{
Console.WriteLine("Unable to find the file specified: " + file);
Console.WriteLine("Press any key to exit");
Console.ReadKey();
return;
}
var lines = File.ReadAllLines(file);
var outputFile = file + ".out";
var resultSet = new List <string>();
foreach (var l in lines)
{
try
{
var e = new Equation(l);
resultSet.Add(transformer.Tranform(e).ToString());
}
catch (Exception exception)
{
Console.WriteLine($"Error: {exception.Message}");
}
}
File.AppendAllLines(outputFile, resultSet);
Console.WriteLine($"{lines.Length} lines processed in {outputFile}");
Console.WriteLine("Press any key to exit");
Console.ReadKey();
return;
}
}
public void EquationTransformer_Transform_1()
{
var equation = new Equation("x^2 + 3.5xy + y = y^2 - xy + y");
var result = _sut.Tranform(equation);
Assert.AreEqual("x^2 - y^2 + 4.5xy = 0", result.ToString());
}