private static int RunInteractiveMode()
{
var isCancel = false;
Console.CancelKeyPress += (object sender, ConsoleCancelEventArgs e) =>
{
var isCtrlC = e.SpecialKey == ConsoleSpecialKey.ControlC;
if (isCtrlC)
{
e.Cancel = true;
isCancel = true;
}
};
Console.WriteLine("Interactive mode: enter equations and displays result on enter. For exit press Ctrl+C");
Console.WriteLine();
while (!isCancel)
{
Console.WriteLine();
Console.Write("Enter equation: ");
string line = Console.ReadLine();
if (!isCancel)
{
var parseResult = EquationParser.TryParse(line, out var equation);
if (parseResult.IsSucceed)
{
Console.WriteLine("Canonical equation: " + equation.ToCanonicalEquation());
}
else
{
Console.WriteLine(
$"Equation parse failed. See the errors: {parseResult.Errors.CollectionToStringWithSeparator(Environment.NewLine)}");
}
}
}
return(0);
}
private static int RunFileMode(string inputFileName)
{
var totalLinesProcessed = 0;
var inputLines = File.ReadAllLines(inputFileName);
var outputLines = inputLines.Select((inputLine, i) =>
{
var parseResult = EquationParser.TryParse(inputLine, out var equation);
if (parseResult.IsSucceed)
{
totalLinesProcessed++;
return(equation.ToCanonicalEquation().ToString());
}
else
{
return($"Failed to parse line {i}: {inputLine}");
}
});
File.WriteAllLines($"{inputFileName}.out", outputLines);
Console.WriteLine($"{totalLinesProcessed} lines processed");
return(0);
}