filecopy ptimelist
print_all_fields cltounix unpad is_callsign is_latlong
is_qra is_freq is_digits is_pctext is_pcflag insertitem deleteitem
+ is_prefix
);
$!x;
}
+sub is_prefix
+{
+ return $_[0] =~ m!^(?:[A-Z]{1,2}\d+ | \d[A-Z]{1,2}\d+)!x # basic prefix
+}
+
+
# check that a PC protocol field is valid text
sub is_pctext
{