How to find ip addresses in free text using QRegExp?

Question

HTML

There is a certain html page with the list of ip addresses.
I'm trying to rip out these same addresses from it using Qt, or rather QRegExp.
Googled on the topic, but I just can not get the right answer from QRegExp.
An expression like this:

(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)

gives an empty response.
This ([0-9]{1,3}[\\.]){3}[0-9]{1,3}gives out only parts of the address, or rather
201.
265.
31.
17.
and so on.
How to write an expression to correctly rip out ip addresses?

Answer 1

QRegExp rx("(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})");

QString text("192.168.1.1 blah-blah 192.168.1.2 blah-blah");
int pos = 0;
QStringList list;
 
while ((pos = rx.indexIn(text, pos)) != -1) 
{
  list << rx.cap(1);
  pos += rx.matchedLength();
}

Result:

192.168.1.1
192.168.1.2

Variant with range check 0-255:

QRegExp rx("(((?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))");