using System;
using System.Text.RegularExpressions;
using System.IO;
using System.Text;
public class HTMLParser {
public static void Main(String[] args) {
FileInfo MyFile = new FileInfo(args[0].ToString());
if (MyFile.Exists) {
StreamReader sr = MyFile.OpenText();
string text = sr.ReadToEnd();
sr.Close();
string pattern = @"";
MatchCollection patternMatches = Regex.Matches(text, pattern,
RegexOptions.IgnoreCase);
foreach (Match nextMatch in patternMatches) {
Console.WriteLine(nextMatch.ToString());
}
} else
Console.WriteLine("The input file does not exist");
}
}