4 # Copyright (c) - Dirk Koopman G1TLH
22 use vars qw($db %prefix_loc %pre $lru $lrusize $misses $hits $matchtotal);
24 $db = undef; # the DB_File handle
25 %prefix_loc = (); # the meat of the info
26 %pre = (); # the prefix list
27 $hits = $misses = $matchtotal = 1; # cache stats
28 $lrusize = 1000; # size of prefix LRU cache
35 # fix up the node's default country codes
36 unless (@main::my_cc) {
37 push @main::my_cc, (61..67) if $main::mycall =~ /^GB/;
38 push @main::my_cc, qw(EA EA6 EA8 EA9) if $main::mycall =~ /^E[ABCD]/;
39 push @main::my_cc, qw(I IT IS) if $main::mycall =~ /^I/;
40 push @main::my_cc, qw(SV SV5 SV9) if $main::mycall =~ /^SV/;
43 push @main::my_cc, $main::mycall unless @main::my_cc;
51 my @dxcc = extract($_);
52 push @c, $dxcc[1]->dxcc if @dxcc > 1;
55 return "\@main::my_cc does not contain a valid prefix or callsign (" . join(',', @main::my_cc) . ")" unless @c;
72 # tie the main prefix database
73 eval {$db = tie(%pre, "DB_File", undef, O_RDWR|O_CREAT, 0664, $DB_BTREE);};
74 my $out = "$@($!)" if !$db || $@ ;
75 eval {do "$main::data/prefix_data.pl" if !$out; };
77 $lru = LRU->newbase('Prefix', $lrusize);
90 my $fh = new IO::File;
91 my $fn = "$main::data/prefix_data.pl";
93 confess "Prefix system not started" if !$db;
96 rename "$fn.oooo", "$fn.ooooo" if -e "$fn.oooo";
97 rename "$fn.ooo", "$fn.oooo" if -e "$fn.ooo";
98 rename "$fn.oo", "$fn.ooo" if -e "$fn.oo";
99 rename "$fn.o", "$fn.oo" if -e "$fn.o";
100 rename "$fn", "$fn.o" if -e "$fn";
102 $fh->open(">$fn") or die "Can't open $fn ($!)";
104 # prefix location data
105 $fh->print("%prefix_loc = (\n");
106 foreach $l (sort {$a <=> $b} keys %prefix_loc) {
107 my $r = $prefix_loc{$l};
108 $fh->printf(" $l => bless( { name => '%s', dxcc => %d, itu => %d, utcoff => %d, lat => %f, long => %f }, 'Prefix'),\n",
109 $r->{name}, $r->{dxcc}, $r->{itu}, $r->{cq}, $r->{utcoff}, $r->{lat}, $r->{long});
111 $fh->print(");\n\n");
114 $fh->print("%pre = (\n");
115 foreach $k (sort keys %pre) {
116 $fh->print(" '$k' => [");
117 my @list = @{$pre{$k}};
124 $fh->print("$str ],\n");
131 # what you get is a list that looks like:-
133 # prefix => @list of blessed references to prefix_locs
135 # This routine will only do what you ask for, if you wish to be intelligent
136 # then that is YOUR problem!
144 return () if $db->seq($gotkey, $ref, R_CURSOR);
145 return () if $key ne substr $gotkey, 0, length $key;
147 return ($gotkey, map { $prefix_loc{$_} } split ',', $ref);
151 # get the next key that matches, this assumes that you have done a 'get' first
160 return () if $db->seq($gotkey, $ref, R_NEXT);
161 return () if $key ne substr $gotkey, 0, length $key;
163 return ($gotkey, map { $prefix_loc{$_} } split ',', $ref);
167 # put the key LRU incluing the city state info
172 my ($call, $ref) = @_;
173 my @s = USDB::get($call);
176 # this is deep magic, because this is a reference to static data, it
178 my $h = { %{$ref->[1]} };
179 bless $h, ref $ref->[1];
184 $ref->[1]->{city} = $ref->[1]->{state} = "" unless exists $ref->[1]->{state};
187 dbg("Prefix::lru_put $call -> ($ref->[1]->{city}, $ref->[1]->{state})") if isdbg('prefix');
188 $lru->put($call, $ref);
192 # search for the nearest match of a prefix string (starting
193 # from the RH end of the string passed)
201 for (my $i = length $pref; $i; $i--) {
203 my $s = substr($pref, 0, $i);
205 my $p = $lru->get($s);
208 if (isdbg('prefix')) {
209 my $percent = sprintf "%.1f", $hits * 100 / $misses;
210 dbg("Partial Prefix Cache Hit: $s Hits: $hits/$misses of $matchtotal = $percent\%");
212 lru_put($_, $p) for @partials;
217 if (isdbg('prefix')) {
218 my $part = $out[0] || "*";
219 $part .= '*' unless $part eq '*' || $part eq $s;
220 dbg("Partial prefix: $pref $s $part" );
222 if (@out && $out[0] eq $s) {
231 # extract a 'prefix' from a callsign, in other words the largest entity that will
232 # obtain a result from the prefix table.
234 # This is done by repeated probing, callsigns of the type VO1/G1TLH or
235 # G1TLH/VO1 (should) return VO1
240 my $calls = uc shift;
246 LM: foreach $call (split /,/, $calls) {
248 # first check if the whole thing succeeds either because it is cached
249 # or because it simply is a stored prefix as callsign (or even a prefix)
251 $call =~ s/-\d+$//; # ignore SSIDs
252 my $p = $lru->get($call);
256 if (isdbg('prefix')) {
257 my $percent = sprintf "%.1f", $hits * 100 / $misses;
258 dbg("Prefix Cache Hit: $call Hits: $hits/$misses of $matchtotal = $percent\%");
264 # is it in the USDB, force a matchprefix to match?
265 my @s = USDB::get($call);
268 @nout = matchprefix($call) unless @nout;
269 $nout[0] = $call if @nout;
275 if (@nout && $nout[0] eq $call) {
277 lru_put($call, \@nout);
278 dbg("got exact prefix: $nout[0]") if isdbg('prefix');
284 # now split the call into parts if required
285 @parts = ($call =~ '/') ? split('/', $call) : ($call);
286 dbg("Parts: $call = " . join(' ', @parts)) if isdbg('prefix');
288 # remove any /0-9 /P /A /M /MM /AM suffixes etc
290 @parts = grep { !/^\d+$/ && !/^[PABM]$/ && !/^(?:|AM|MM|BCN|JOTA|SIX|WEB|NET|Q\w+)$/; } @parts;
292 # can we resolve them by direct lookup
293 my $s = join('/', @parts);
295 if (@nout && $nout[0] eq $s) {
296 dbg("got exact multipart prefix: $call $s") if isdbg('prefix');
298 lru_put($call, \@nout);
303 dbg("Parts now: $call = " . join(' ', @parts)) if isdbg('prefix');
305 # at this point we should have two or three parts
306 # if it is three parts then join the first and last parts together
309 # first deal with prefix/x00xx/single letter things
310 if (@parts == 3 && length $parts[0] <= length $parts[1]) {
311 @nout = matchprefix($parts[0]);
313 my $s = join('/', $nout[0], $parts[2]);
315 if (@try && $try[0] eq $s) {
316 dbg("got 3 part prefix: $call $s") if isdbg('prefix');
318 lru_put($call, \@try);
323 # if the second part is a callsign and the last part is one letter
324 if (is_callsign($parts[1]) && length $parts[2] == 1) {
330 # if it is a two parter
333 # try it as it is as compound, taking the first part as the prefix
334 @nout = matchprefix($parts[0]);
336 my $s = join('/', $nout[0], $parts[1]);
338 if (@try && $try[0] eq $s) {
339 dbg("got 2 part prefix: $call $s") if isdbg('prefix');
341 lru_put($call, \@try);
348 # remove the problematic /J suffix
349 pop @parts if @parts > 1 && $parts[$#parts] eq 'J';
353 @nout = matchprefix($parts[0]);
355 dbg("got prefix: $call = $nout[0]") if isdbg('prefix');
357 lru_put($call, \@nout);
366 L1: for ($n = 0; $n < @parts; $n++) {
369 for ($i = $k = 0; $i < @parts; $i++) {
370 next if $checked[$i];
372 if (!$sp || length $p < length $sp) {
373 dbg("try part: $p") if isdbg('prefix');
379 $sp =~ s/-\d+$//; # remove any SSID
381 # now start to resolve it from the right hand end
382 @nout = matchprefix($sp);
384 # try and search for it in the descriptions as
385 # a whole callsign if it has multiple parts and the output
386 # is more two long, this should catch things like
387 # FR5DX/T without having to explicitly stick it into
392 $parts[$k] = $nout[0];
393 my $try = join('/', @parts);
395 if (isdbg('prefix')) {
396 my $part = $try[0] || "*";
397 $part .= '*' unless $part eq '*' || $part eq $try;
398 dbg("Compound prefix: $try $part" );
400 if (@try && $try eq $try[0]) {
402 lru_put($call, \@try);
406 lru_put($call, \@nout);
411 lru_put($call, \@nout);
419 @nout = matchprefix('Q');
421 lru_put($call, \@nout);
425 if (isdbg('prefixdata')) {
426 my $dd = new Data::Dumper([ \@out ], [qw(@out)]);
433 # turn a list of prefixes / dxcc numbers into a list of dxcc/itu/zone numbers
447 if ($cmd ne 'ns' && $v =~ /^\d+$/) {
448 push @out, $v unless grep $_ eq $v, @out;
450 if ($cmd eq 'ns' && $v =~ /^[A-Z][A-Z]$/i) {
451 push @out, uc $v unless grep $_ eq uc $v, @out;
453 my @pre = Prefix::extract($v);
456 foreach my $p (@pre) {
457 my $n = $p->dxcc if $cmd eq 'nc' ;
458 $n = $p->itu if $cmd eq 'ni' ;
459 $n = $p->cq if $cmd eq 'nz' ;
460 $n = $p->state if $cmd eq 'ns';
461 push @out, $n unless grep $_ eq $n, @out;
470 # get the full country data (dxcc, itu, cq, state, city) as a list
476 my @dxcc = extract($call);
478 my $state = $dxcc[1]->state || '';
479 my $city = $dxcc[1]->city || '';
480 my $name = $dxcc[1]->name || '';
482 return ($dxcc[1]->dxcc, $dxcc[1]->itu, $dxcc[1]->cq, $state, $city, $name);
484 return (666,0,0,'','','Pirate-Country-QQ');
488 lat => '0,Latitude,slat',
489 long => '0,Longitude,slong',
496 utcoff => '0,UTC offset',
497 cont => '0,Continent',
503 my $name = $AUTOLOAD;
505 return if $name =~ /::DESTROY$/;
508 confess "Non-existant field '$AUTOLOAD'" if !$valid{$name};
509 # this clever line of code creates a subroutine which takes over from autoload
510 # from OO Perl - Conway
511 *$AUTOLOAD = sub {@_ > 1 ? $_[0]->{$name} = $_[1] : $_[0]->{$name}} ;
516 # return a prompt for a field
521 my ($self, $ele) = @_;