Benchmark.cs

usingSystem;
usingSystem.IO;
usingSystem.Text.RegularExpressions;
usingSystem.Diagnostics;

classBenchmark
{
staticvoidMain(string[]args)
{
if(args.Length!=1)
{
Console.WriteLine("Usage: benchmark <filename>");
Environment.Exit(1);
}

StreamReaderreader=newSystem.IO.StreamReader(args[0]);
stringdata=reader.ReadToEnd();

// Email
Benchmark.Measure(data,@"[\w\.+-]+@[\w\.-]+\.[\w\.-]+");

// URI
Benchmark.Measure(data,@"[\w]+://[^/\s?#]+[^\s?#]+(?:\?[^\s#]*)?(?:#[^\s]*)?");

// IP
Benchmark.Measure(data,@"(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9])\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9])");
}

staticvoidMeasure(stringdata,stringpattern)
{
Stopwatchstopwatch=Stopwatch.StartNew();

MatchCollectionmatches=Regex.Matches(data,pattern,RegexOptions.Compiled);
intcount=matches.Count;

stopwatch.Stop();

Console.WriteLine(stopwatch.Elapsed.TotalMilliseconds.ToString("G",System.Globalization.CultureInfo.InvariantCulture)+" - "+count);
}
}