make IPv6 links in link syntax FS#2137

inc/parser/parser.php

@@ -828,7 +828,7 @@ class Doku_Parser_Mode_internallink extends Doku_Parser_Mode {
 
     function connectTo($mode) {
         // Word boundaries?
-        $this->Lexer->addSpecialPattern("\[\[.+?\]\]",$mode,'internallink');
+        $this->Lexer->addSpecialPattern("\[\[(?:(?:.*?\[.*?\])|.+?)\]\]",$mode,'internallink');
     }
 
     function getSort() {