// This program will test regular expresssions
// on a file that the user inputs at the program's request.
// Distributed under the GNU GPL: www.gnu.org

import java.io.*;
import java.util.regex.*;

public class regex1 {
	public static void main(String args[]) throws IOException {	
		String userEntry;

		// Ask user to enter data into program that will be matched
		// against the regex

		InputStreamReader delta = new InputStreamReader(System.in);
		BufferedReader echo = new BufferedReader(delta);
		System.out.println("Enter data to be matched against regex.");
		userEntry = echo.readLine();

		String golf = new String("Linux|FreeBSD|linux|freebsd");
		Pattern alpha = Pattern.compile(golf);
		Matcher bravo = alpha.matcher(userEntry);
		boolean charlie = bravo.matches();
		
		System.out.println("Is it a match? " + charlie);



	} // end main method
}  // end class regex1