use Carp;
use DXVars;
use DB_File;
+use Data::Dumper;
+use Carp;
use strict;
+use vars qw($db %prefix_loc %pre);
-my $db; # the DB_File handle
-my %prefix_loc; # the meat of the info
-my %prefix; # the prefix list
+$db; # the DB_File handle
+%prefix_loc; # the meat of the info
+%pre; # the prefix list
sub load
{
if ($db) {
- untie %prefix;
- %prefix = ();
+ untie %pre;
+ %pre = ();
%prefix_loc = ();
}
- $db = tie(%prefix, "DB_File", undef, O_RDWR|O_CREAT, 0, $DB_BTREE) or confess "can't tie %prefix ($!)";
- do "$main::data/prefix_data.pl";
+ $db = tie(%pre, "DB_File", undef, O_RDWR|O_CREAT, 0666, $DB_BTREE) or confess "can't tie \%pre ($!)";
confess $@ if $@;
+ do "$main::data/prefix_data.pl";
+# print Data::Dumper->Dump([\%pre, \%prefix_loc], [qw(pre prefix_loc)]);
}
sub store
$fh->print("%prefix_loc = (\n");
foreach $l (sort {$a <=> $b} keys %prefix_loc) {
my $r = $prefix_loc{$l};
- $fh->printf(" $l => { name => '%s', dxcc => %d, itu => %d, utcoff => %d, lat => %f, long => %f },\n",
+ $fh->printf(" $l => bless( { name => '%s', dxcc => %d, itu => %d, utcoff => %d, lat => %f, long => %f }, 'Prefix'),\n",
$r->{name}, $r->{dxcc}, $r->{itu}, $r->{cq}, $r->{utcoff}, $r->{lat}, $r->{long});
}
$fh->print(");\n\n");
# prefix data
- $fh->print("%prefix = (\n");
- foreach $k (sort keys %prefix) {
+ $fh->print("%pre = (\n");
+ foreach $k (sort keys %pre) {
$fh->print(" '$k' => [");
- my @list = @{$prefix{$k}};
+ my @list = @{$pre{$k}};
my $l;
my $str;
foreach $l (@list) {
$fh->close;
}
-# this may return several entries, be warned!
-#
-# what you get is a list of pairs of:-
+# what you get is a list that looks like:-
#
-# prefix => \[ @list of references to prefix_locs ]
+# prefix => @list of blessed references to prefix_locs
#
# This routine will only do what you ask for, if you wish to be intelligent
# then that is YOUR problem!
#
sub get
{
+ my $key = shift;
+ my @out;
+ my @outref;
+ my $ref;
+ my $gotkey;
+ $gotkey = $key;
+ return () if $db->seq($gotkey, $ref, R_CURSOR);
+ return () if $key ne substr $gotkey, 0, length $key;
+
+ @outref = map { $prefix_loc{$_} } split ',', $ref;
+ return ($gotkey, @outref);
}
+#
+# get the next key that matches, this assumes that you have done a 'get' first
+#
+#
+sub next
+{
+ my $key = shift;
+ my @out;
+ my @outref;
+ my $ref;
+ my $gotkey;
+
+ return () if $db->seq($gotkey, $ref, R_NEXT);
+ return () if $key ne substr $gotkey, 0, length $key;
+
+ @outref = map { $prefix_loc{$_} } split ',', $ref;
+ return ($gotkey, @outref);
+}
+
+#
+# extract a 'prefix' from a callsign, in other words the largest entity that will
+# obtain a result from the prefix table.
+#
+# This is done by repeated probing, callsigns of the type VO1/G1TLH or
+# G1TLH/VO1 (should) return VO1
+#
+
+sub extract
+{
+ my $call = uc shift;
+ my @out;
+ my @nout;
+ my $p;
+ my @parts;
+ my ($sp, $i);
+
+ # first check if the whole thing succeeds
+ @out = get($call);
+ return @out if @out > 0 && $out[0] eq $call;
+
+ # now split the call into parts if required
+ @parts = ($call =~ '/') ? split('/', $call) : ($call);
+
+ # remove any /0-9 /P /A /M /MM /AM suffixes etc
+ if (@parts > 1) {
+ $p = $parts[$#parts];
+ pop @parts if $p =~ /^(\d+|[PABM]|AM|MM|BCN|SIX|Q\w+)$/o;
+ $p = $parts[$#parts];
+ pop @parts if $p =~ /^(\d+|[PABM]|AM|MM|BCN|SIX|Q\w+)$/o;
+
+ # can we resolve them by direct lookup
+ foreach $p (@parts) {
+ @out = get($p);
+ return @out if @out > 0 && $out[0] eq $call;
+ }
+ }
+
+ # which is the shortest part (first if equal)?
+ $sp = $parts[0];
+ foreach $p (@parts) {
+ $sp = $p if length $sp > length $p;
+ }
+ # now start to resolve it from the left hand end
+ for (@out = (), $i = 1; $i <= length $sp; ++$i) {
+ @nout = get(substr($sp, 0, $i));
+ last if @nout > 0 && $nout[0] gt $sp;
+ last if @nout == 0;
+ @out = @nout;
+ }
+
+ # not found
+ return (@out > 0) ? @out : ();
+}
+
+my %valid = (
+ lat => '0,Latitude,slat',
+ long => '0,Longitude,slong',
+ dxcc => '0,DXCC',
+ name => '0,Name',
+ itu => '0,ITU',
+ cq => '0,CQ',
+ utcoff => '0,UTC offset',
+);
+
+no strict;
+sub AUTOLOAD
+{
+ my $self = shift;
+ my $name = $AUTOLOAD;
+
+ return if $name =~ /::DESTROY$/;
+ $name =~ s/.*:://o;
+
+ confess "Non-existant field '$AUTOLOAD'" if !$valid{$name};
+ if (@_) {
+ $self->{$name} = shift;
+ }
+ return $self->{$name};
+}
+use strict;
+
+#
+# return a prompt for a field
+#
+
+sub field_prompt
+{
+ my ($self, $ele) = @_;
+ return $valid{$ele};
+}
1;
__END__