private static void LoadFromFile(string filename, EquationNormalizer normalizer)
{
string equation;
string output = String.Empty;
StreamReader file;
try
{
file = new StreamReader(filename);
}
catch (FileNotFoundException)
{
Console.WriteLine("Cannot find file {0}", filename);
return;
}
while ((equation = file.ReadLine()) != null)
{
if (equation.Length > 0)
{
output += equation + " -> " + normalizer.Normalize(equation) + "\n";
}
}
string outputFileName = filename + ".out";
File.WriteAllText(outputFileName, output);
Console.WriteLine("File {0} with output has been generated", outputFileName);
}
private static void StartInteractive(EquationNormalizer normalizer)
{
while (true)
{
Console.WriteLine("Please enter an equation below:");
Console.Write("> ");
string equation = Console.ReadLine();
Console.WriteLine("\n" + normalizer.Normalize(equation) + "\n");
}
}
public static void Main(string[] args)
{
string filename;
EquationNormalizer normalizer = new EquationNormalizer();
// check parameters
if (args.Length > 0)
{
filename = args[0];
// load from file mode
MainClass.LoadFromFile(filename, normalizer);
}
else
{
// interractive mode
MainClass.StartInteractive(normalizer);
}
}
