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) {
249 $call =~ s/-\d+$//; # ignore SSIDs
251 my $ecall = "=$call";
253 # first check if this is a call (by prefixing it with an = sign)
254 my $p = $lru->get($ecall);
257 if (isdbg('prefix')) {
258 my $percent = sprintf "%.1f", $hits * 100 / $misses;
259 dbg("Prefix Exact Cache Hit: $call Hits: $hits/$misses of $matchtotal = $percent\%");
265 # then check if the whole thing succeeds either because it is cached
266 # or because it simply is a stored prefix as callsign (or even a prefix)
267 $p = $lru->get($call);
270 if (isdbg('prefix')) {
271 my $percent = sprintf "%.1f", $hits * 100 / $misses;
272 dbg("Prefix Cache Hit: $call Hits: $hits/$misses of $matchtotal = $percent\%");
278 # is it in the USDB, force a matchprefix to match?
279 my @s = USDB::get($call);
282 @nout = matchprefix($call) unless @nout;
283 $nout[0] = $ecall if @nout;
286 # try a straight get for an exact callsign
290 # now store the exact prefix if it has been found
291 if (@nout && $nout[0] eq $ecall) {
294 lru_put("=$call", \@nout);
295 dbg("got exact prefix: $nout[0]") if isdbg('prefix');
300 # now try a non-exact call/prefix
301 if ((@nout = get($call)) && $nout[0] eq $call) {
303 lru_put($call, \@nout);
304 dbg("got exact prefix: $nout[0]") if isdbg('prefix');
309 # now split the call into parts if required
310 @parts = ($call =~ '/') ? split('/', $call) : ($call);
311 dbg("Parts: $call = " . join(' ', @parts)) if isdbg('prefix');
313 # remove any /0-9 /P /A /M /MM /AM suffixes etc
315 @parts = grep { !/^\d+$/ && !/^[PABM]$/ && !/^(?:|AM|MM|BCN|JOTA|SIX|WEB|NET|Q\w+)$/; } @parts;
317 # can we resolve them by direct lookup
318 my $s = join('/', @parts);
320 if (@nout && $nout[0] eq $s) {
321 dbg("got exact multipart prefix: $call $s") if isdbg('prefix');
323 lru_put($call, \@nout);
328 dbg("Parts now: $call = " . join(' ', @parts)) if isdbg('prefix');
330 # at this point we should have two or three parts
331 # if it is three parts then join the first and last parts together
334 # first deal with prefix/x00xx/single letter things
335 if (@parts == 3 && length $parts[0] <= length $parts[1]) {
336 @nout = matchprefix($parts[0]);
338 my $s = join('/', $nout[0], $parts[2]);
340 if (@try && $try[0] eq $s) {
341 dbg("got 3 part prefix: $call $s") if isdbg('prefix');
343 lru_put($call, \@try);
348 # if the second part is a callsign and the last part is one letter
349 if (is_callsign($parts[1]) && length $parts[2] == 1) {
355 # if it is a two parter
358 # try it as it is as compound, taking the first part as the prefix
359 @nout = matchprefix($parts[0]);
361 my $s = join('/', $nout[0], $parts[1]);
363 if (@try && $try[0] eq $s) {
364 dbg("got 2 part prefix: $call $s") if isdbg('prefix');
366 lru_put($call, \@try);
373 # remove the problematic /J suffix
374 pop @parts if @parts > 1 && $parts[$#parts] eq 'J';
378 @nout = matchprefix($parts[0]);
380 dbg("got prefix: $call = $nout[0]") if isdbg('prefix');
382 lru_put($call, \@nout);
391 L1: for ($n = 0; $n < @parts; $n++) {
394 for ($i = $k = 0; $i < @parts; $i++) {
395 next if $checked[$i];
397 if (!$sp || length $p < length $sp) {
398 dbg("try part: $p") if isdbg('prefix');
404 $sp =~ s/-\d+$//; # remove any SSID
406 # now start to resolve it from the right hand end
407 @nout = matchprefix($sp);
409 # try and search for it in the descriptions as
410 # a whole callsign if it has multiple parts and the output
411 # is more two long, this should catch things like
412 # FR5DX/T without having to explicitly stick it into
417 $parts[$k] = $nout[0];
418 my $try = join('/', @parts);
420 if (isdbg('prefix')) {
421 my $part = $try[0] || "*";
422 $part .= '*' unless $part eq '*' || $part eq $try;
423 dbg("Compound prefix: $try $part" );
425 if (@try && $try eq $try[0]) {
427 lru_put($call, \@try);
431 lru_put($call, \@nout);
436 lru_put($call, \@nout);
444 @nout = matchprefix('Q');
446 lru_put($call, \@nout);
450 if (isdbg('prefixdata')) {
451 my $dd = new Data::Dumper([ \@out ], [qw(@out)]);
458 # turn a list of prefixes / dxcc numbers into a list of dxcc/itu/zone numbers
472 if ($cmd ne 'ns' && $v =~ /^\d+$/) {
473 push @out, $v unless grep $_ eq $v, @out;
475 if ($cmd eq 'ns' && $v =~ /^[A-Z][A-Z]$/i) {
476 push @out, uc $v unless grep $_ eq uc $v, @out;
478 my @pre = Prefix::extract($v);
481 foreach my $p (@pre) {
482 my $n = $p->dxcc if $cmd eq 'nc' ;
483 $n = $p->itu if $cmd eq 'ni' ;
484 $n = $p->cq if $cmd eq 'nz' ;
485 $n = $p->state if $cmd eq 'ns';
486 push @out, $n unless grep $_ eq $n, @out;
495 # get the full country data (dxcc, itu, cq, state, city) as a list
501 my @dxcc = extract($call);
503 my $state = $dxcc[1]->state || '';
504 my $city = $dxcc[1]->city || '';
505 my $name = $dxcc[1]->name || '';
507 return ($dxcc[1]->dxcc, $dxcc[1]->itu, $dxcc[1]->cq, $state, $city, $name);
509 return (666,0,0,'','','Pirate-Country-QQ');
513 lat => '0,Latitude,slat',
514 long => '0,Longitude,slong',
521 utcoff => '0,UTC offset',
522 cont => '0,Continent',
528 my $name = $AUTOLOAD;
530 return if $name =~ /::DESTROY$/;
533 confess "Non-existant field '$AUTOLOAD'" if !$valid{$name};
534 # this clever line of code creates a subroutine which takes over from autoload
535 # from OO Perl - Conway
536 *$AUTOLOAD = sub {@_ > 1 ? $_[0]->{$name} = $_[1] : $_[0]->{$name}} ;
541 # return a prompt for a field
546 my ($self, $ele) = @_;