[Kar]

Edit: this one is giving invalid character constant now

pawn Code:

stock ContainsIPEx(const string[])
{
    static RegEx:rCIP;
    if ( !rCIP )
    {
        rCIP = regex_build("(25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?\.){3}(25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9])");
    }
    return regex_match_exid(string, rCIP);
}