Extract method on plaintext with QRegExp

Hello,

With QRegExp, I want to extract each method names on QString returned by plaintext() method on QTextEdit, i.e. words between :: and ) but not on "" or () or {}

Code:

---

void class::method(myEnum::foo f) 
{   
   QString s = QString::number(5); 
}

---

must return method(myEnum::foo f) but not foo nor QString::number(5)

Thanks

Maybe something like this:

Code:

---

"::(\\w+\\([\\w\\s:]*\\))\\s*(?:const)?\\s*\\{"

---