Well I've finally renamed all the files manually since I didn't find any help, but I can reproduce the problem easily.
You can download the files used for this test here :
http://www62.zippyshare.com/v/76377483/file.htmlI want to rename this :
Bibiwww - Random text 16.02.14.nfoTo this :
BibiXXX - 2014-02-16 - Random text.nfoSo I used this regular expression :
Match : ^Bibiwww\s+-\s+(.+)\s+(\d{2})\.(\d{2})\.(\d{2})$
Replace : BibiXXX - 20\4-\3-\2 - \1
But it appears that ".", which is supposed to match any character, refuses to match some special characters, and even normal ones !
Thanks for your help !
