|
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Grep {
public static void main(String args[]) throws Exception {
String regex = "";
InputStream in = System.in;
regex = args[0];
in = new BufferedInputStream(new FileInputStream(args[1]));
Pattern p = null;
p = Pattern.compile(regex);
BufferedReader buff = new BufferedReader(new InputStreamReader(in));
String a;
for (a = buff.readLine(); a != null; a = buff.readLine()) {
Matcher m = p.matcher(a);
if (m.find()) {
System.out.println(a);
}
}
}
}
|
