String tStr = "Computer science in sport''' is an interdisciplinary discipline that has its goal in combining the theoretical as well as practical aspects and methods of the areas of [[Information technology|informatics]] and [[sport science]]. The main emphasis of the [[interdisciplinarity]] is placed on the application and use of computer-based but also mathematical techniques in sport science, aiming in this way at the support and advancement of theory and practice in sports.<ref>{{cite web|author=Daniel Link & Martin Lames|title=Sport Informatics – Historical Roots";
String validateRegex = "(\[\[)(:?)(\w+)(\|?)(\w*)(\]\])";
Pattern pattern = Pattern.compile(validateRegex, Pattern.MULTILINE);
Matcher matcher = pattern.matcher(tStr);
while (matcher.find()) {
   System.out.println(matcher.group()+"n");
}

[[Information technology|informatics]]
[[sport science]]
[[interdisciplinarity]]