Hello,
I would like to restrict the characters for usernames to only to letters (lowercase and uppercase) and numbers, and no other characters. In another topic (in which I replied but somehow my reply always disappears again), I read the suggestion for the Perl Regular Expression code input to be: /[a-zA-Z0-9]*/
Is that still the best code for what I need it? The reason why I ask, is because the tooltip for that setting says instead:
only a-z + A-Z + digits: /^[0-9a-z]*$/i
But it seems confusing, because the recommendation of the tooltip doesn't mention capital A-Z while according to its recommendation, that is included. So I wanted ask just to be sure.
Thanks.
krileon
