> > The only problem with this is that it would take "444" which is not a > > valid call.
Wikipedia defines a HAM call sign here: http://en.wikipedia.org/wiki/Call_sign#Amateur_radio A regex based upon this definition might be: /\b(([A-Z]{1,2})|([A-Z][0-9]))[0-9][A-Z]{1,3}\b/ I tested this out a tiny bit and it seems to work OK. Good luck. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
