sorry, I forgot to send my mail to the list:
Jeff Pang schrieb:
> > then use regex or other ways (I prefer substr) to get the prefix.
> > my $prefix = substr($string,1,3);
I think the problem is that some countrycodes are only 2 digits some are 3
( or more ? )
So you dont know how long your prefix is.
A further suggestion that extends jeffs idea could be following:
you have a longest key in your hash
lets say it stored in $prefix_len, so you could do (pseudocode):
my $prefix = substr($string,1, $prefex_len);
if($prefix eq somekey_of_your_hash){
yay :-)
}else{
try it again with substr($string,1, $prefix_len - 1)
}
HTH
Regards
Martin
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