private static void OutputResults(BigramFlags flags, ICounter counter, long elapsed)
{
List <BigramCountValue> counts = counter.BigramCountList();
switch (flags.Order)
{
case "alpha":
counts.Sort((x, y) => x.Item1.CompareTo(y.Item1));
break;
case "freq":
counts.Sort((x, y) => x.Item2.CompareTo(y.Item2));
break;
case "freq_d":
counts.Sort((x, y) => y.Item2.CompareTo(x.Item2));
break;
default:
break;
}
foreach (BigramCountValue val in counts)
{
Console.WriteLine(string.Format("{0, -20}\t{1, 10}", val.Item1, val.Item2));
}
if (elapsed > 0)
{
Console.WriteLine();
Console.WriteLine(string.Format("Elapsed time: {0} / {1} s", elapsed, ((double)elapsed / Stopwatch.Frequency)));
}
}
static void DisplayUsage(BigramFlags flags)
{
Process myProcess = System.Diagnostics.Process.GetCurrentProcess();
string displayName = Path.GetFileNameWithoutExtension(myProcess.MainModule.FileName);
Console.WriteLine(string.Format("USAGE: {0} [options] | Use -filepath option to point to a valid file to process", displayName));
Console.WriteLine(string.Format(" OR: {0} [options] text to process... | Do NOT include the -filepath option", displayName));
Console.WriteLine("===============================================================================================");
Console.WriteLine("OPTIONS:");
foreach (string line in flags.HelpText)
{
Console.WriteLine(line);
}
myProcess.Dispose();
}
public IParser CreateParser(BigramFlags flags)
{
if (string.IsNullOrWhiteSpace(flags.Filepath) && flags.Args.Count > 0)
{
return(new CommandLineTextParser(flags.Args.ToArray(), flags.CrossSentenceBoundaries));
}
else if (!string.IsNullOrWhiteSpace(flags.Filepath))
{
if (!File.Exists(flags.Filepath))
{
throw new FileNotFoundException("{0) does not exist. Please correct the file path and try again.", flags.Filepath);
}
return(new SimpleFileParser(flags.Filepath, flags.CrossSentenceBoundaries));
}
throw new System.Exception();
}
static void Main(string[] args)
{
long elapsed = 0;
BigramFlags flags = new BigramFlags(args);
try
{
/// Replace with DI container (i.e. Ninject/Castle Windsor/Autofac/ etc) when project grows larger
IFactory factory = Factory.GetFactory();
if (flags.HasErrors)
{
Console.WriteLine("Error in command line arguments: {0}\r\n", flags.ErrorText);
DisplayUsage(flags);
return;
}
IParser parser = factory.CreateParser(flags);
ICounter counter = factory.CreateCounter(flags);
elapsed = PerformParse(parser, counter, flags.Time);
OutputResults(flags, counter, elapsed);
}
catch (FileNotFoundException)
{
Console.WriteLine(string.Format("Unable to find the file specified: {0}", flags.Filepath));
DisplayUsage(flags);
}
catch (Exception ex)
{
Console.WriteLine(string.Format("Unexpected error encountered during execution: {0}", ex.Message));
DisplayUsage(flags);
}
return;
}
public ICounter CreateCounter(BigramFlags flags)
{
return(new MemoryCounter());
}