static void CompareMatchEngines(string text, string regex)
{
Stopwatch timer = new Stopwatch();
timer.Start();
System.Text.RegularExpressions.Regex reNet = new System.Text.RegularExpressions.Regex(regex);
int nMatches = 0;
foreach (System.Text.RegularExpressions.Match m in reNet.Matches(text)) nMatches++;
timer.Stop();
Console.WriteLine("\t.NET library Regex found {0} matches in {1:F3} ms",
nMatches, timer.Elapsed.TotalMilliseconds);
double baseline = timer.Elapsed.TotalMilliseconds;
timer.Restart();
Regex re = new Regex(regex);
nMatches = 0;
foreach (Match m in re.Matches(text)) nMatches++;
timer.Stop();
Console.WriteLine("\tBrasswork Regex found {0} matches in {1:F3} ms ({2:F3} of .NET)",
nMatches, timer.Elapsed.TotalMilliseconds, timer.Elapsed.TotalMilliseconds / baseline);
}
static void TimeMatch(string text, string regex)
{
Stopwatch timer = new Stopwatch();
timer.Start();
Regex re = new Regex(regex);
int nMatches = 0;
foreach (Match m in re.Matches(text)) nMatches++;
timer.Stop();
Console.WriteLine("\tBrasswork Regex found {0} matches in {1:F3} ms",
nMatches, timer.Elapsed.TotalMilliseconds);
}