Re: Regex for Amateur Radio Callsigns

HI Curt, Thanks for the reply, > What does a amateur radio callsign look like? And in what context > are you trying to parse this callsign? Basically here is the regex I used (I am not the best with regexes): $pattern = "/^[0-9]?[A-Z]{1,2}[0-9][A-Z]{1,3}/"; Here are how they look W1W W1AW WA1W AD4HZ N9URK WB6NOA 4N1UBG I guess this would be better? $pattern = "/^"; $pattern .= "([0-9][A-Z][0-9][A-Z]{3})|"; //4N1UBG $pattern .= "([A-Z][0-9][A-Z]{1,3})|"; //N9URK, W1AW, W1W $pattern .= "([A-Z]{2}[0-9][A-Z]{1,3})"; //WB6NOA, AD4HZ, WA1W $pattern .= "/"; I am still trying to master regexes. Is there a better way to do this? THanks, -- Leonard Burton, N9URK leonardburton@gmail.com "The prolonged evacuation would have dramatically affected the survivability of the occupants."