#include <iostream>#include <QtCore>using namespace std;int main(int argc, char *argv[]){    QCoreApplication app(argc, argv);    int pos;    int index;    QRegExp rx("(http://(?:[a-z0-9_\\.])+(?:com|cn|net|org|gov|mil)"    	"|(ftp://(?:[a-z0-9_\\.])+(?:com|cn|net|org|gov|mil))"    	"|(mailto:(?:[a-z0-9_\\.])+@(?:[a-z0-9\\.])+(?:com|cn|net|org|gov|mil)))");    if(!rx.isValid())    {    	cout << qPrintable(rx.errorString());    	return -1;    }        QFile file("index.html");    if (!file.open(QIODevice::ReadOnly | QIODevice::Text))         return -1;    QTextStream in(&file);    while (!in.atEnd()) {        QString str = in.readLine();	 	pos = 0;	 	while ((pos = rx.indexIn(str, pos)) != -1) {	 		for(index = 0; index <3; index++) {	 			if(!rx.cap(index).isEmpty())						cout << qPrintable(rx.cap(index)) << endl;	 		}	     	pos += rx.matchedLength();	 	}    }     return 0;}